CN105496689A - Movement trajectory achieving method of medical bed with patient transfer function - Google Patents

Abstract

The invention discloses a method for realizing the motion trajectory of a medical bed with the function of transferring patients, which is characterized in that: by controlling the rotation of the driving screw, the driving screw drives the trajectory control wheel to move linearly, and the trajectory control wheel pushes against the first controller in turn , the second controller, the third controller, and the second controller work, which can realize the continuous rotation, raising, translation, lowering, and rising actions of the first bed board and the second bed board, which improves the continuity of the action. As long as the escort fixes the position of the wheelchair in advance, the patient can be rotated by operating the driving screw, and the movement is stable, the action is continuous, the operation is simple, and the single-person operation is realized, and it conforms to the characteristics of the human body and will not cause discomfort; Does not affect the normal function of the medical bed; the medical bed can realize the activities of the body muscles, and the reciprocating operation of steps 1 and 2 of the above realization method can realize the activities of the body muscles, which can reduce the long-term compression of the body muscles and blood vessels, and reduce blood flow Poor, muscular atrophy risk.

Description

A method for realizing the movement trajectory of a medical bed with the function of transferring patients

technical field

The invention relates to a method for realizing the motion trajectory of a medical bed with the function of transferring patients.

Background technique

A medical bed refers to an appliance or other article used on the human body. Its function on the surface of the human body is not obtained by means of pharmacology, immunology or metabolism, but these means may participate and play a certain auxiliary role; its purpose of use is to To achieve the following expected purposes: (1) prevention, diagnosis, treatment, monitoring and mitigation of diseases; (2) diagnosis, treatment, monitoring, mitigation and compensation of injuries or disabilities. In the existing process of caring for paralyzed patients, in order to reduce the patient's bed rest time and maintain a happy mood, it is usually necessary for an escort to carry the patient to a wheelchair, take the patient to carry out outdoor activities through the wheelchair, and the escort will carry the patient to the wheelchair. The process of using a wheelchair is relatively laborious. For some heavy patients, it is often difficult for an escort to do this. Therefore, how to design a method for realizing the motion trajectory of a medical bed with the function of transferring patients has become a technical problem that technicians in this industry need to solve.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a method for realizing the movement trajectory of a medical bed with reasonable structural design and the function of transferring patients.

The technical solution adopted by the present invention to solve the above problems is:

A method for realizing the movement trajectory of a medical bed with the function of transferring patients, characterized in that:

The medical bed includes a bed support, a bed board and a transfer device. The bed board is fixed on the bed support. The transfer device includes a driving mechanism, a rotating mechanism, a lifting mechanism, a translation mechanism and a control mechanism. The first bed board part and the second bed board part used to support the rear part of the knee joint, the bed board main body is provided with installation grooves for embedding the first bed board part and the second bed board part, two sides of the first bed board part are provided for Insert the force plate at the armpit of the human body, the driving mechanism includes a driving screw that is installed on the bed support, the end of the driving screw is provided with a rotating disk, and the rotating disk is provided with a rotating handle; the rotating mechanism includes a rotating bracket, a first support plate, the second support plate, support rollers, the first support plate gear and the second support plate gear, the first support plate and the second support plate are arc-shaped, and the center of the first support plate, the second support plate The center of the circle coincides with each other, so as to adapt to the characteristics of the human body (both the body and the lower limbs use the buttocks as the rotation point), the first bed board and the second bed board are respectively fixed on the upper end of the first support board and the upper end of the second support board. The left and right sides of the first support plate and the second support plate are provided with arc-shaped guide rails, and the inner and outer sides of the guide rails are provided with support rollers, and the support rollers are pressed on the guide rails. The inside or outside of the first support plate An arc-shaped first rack is provided, and the first rack is in gear engagement with the first support plate, and the inner or outer side of the second support plate is provided with an arc-shaped second rack, and the second rack is Mesh with the second support plate gear, the support roller, the first support plate gear and the second support plate gear are rotatably installed on the rotating bracket, and the guide rail is inclined to the side of the first support plate and the second support plate, thereby improving the support roller Support stability, the first support plate gear and the second support plate gear are respectively arranged on both sides of the first drive gear and the first support plate gear and the second support plate gear are all meshed with the first drive gear; the lifting mechanism includes a lift The base, the lifting nut, the lifting screw, and the second drive gear, the lifting nut is rotatably mounted on the rotating bracket, the lifting nut and the lifting screw are threaded, the second driving gear drives the lifting nut, and the lifting screw is vertical Set and rotate on the lifting base, so that the rotating bracket can vertically reciprocate relative to the lifting base; the translation mechanism includes a translation base, a translation nut, a translation screw and a third drive gear, and the translation nut is rotatably installed on the lifting base Above, the translation nut and the translation screw are threadedly matched, and the third drive gear drives the translation screw, and the translation screw is horizontally arranged and rotatably mounted on the translation base, so that the lifting base can reciprocate horizontally relative to the translation base; control The mechanism includes a trajectory control wheel, a first controller, a second controller, and a third controller, and the first controller, the second controller, and the third controller all include a pressure rod, a hydraulic cylinder, and a hydraulic clutch, and the pressure rod Fix the piston rod of the hydraulic cylinder, the hydraulic cylinder is connected to the hydraulic clutch through the oil pipe, the track control wheel is installed on the track control nut, the track control nut is installed on the track control screw, and the track control screw The female slide is installed on the translation base, the hydraulic cylinder of the third controller is fixed on the translation base, the hydraulic cylinder of the first controller and the hydraulic cylinder of the second controller are slidingly installed on the lifting base, and the translation base is provided with the first The controller track and the second controller track, the hydraulic cylinder of the first controller is provided with two first controller control wheels, and the two first controller control wheels are respectively against the two sides of the first controller track , the hydraulic cylinder of the second controller is provided with two second controller control wheels, and the two second controller control wheels are respectively against the two sides of the second controller track, and the first controller track is sequentially connected by The first left control section and the first right control section are composed of the first left control section and the first right control section respectively control the hydraulic cylinder of the first controller away from the track control wheel and close to the track control wheel, and the first controller track is composed of The second left control section, the second middle control section and the second right control section are connected in sequence, and the second left control section, the second middle control section and the second right control section respectively control the hydraulic cylinder of the second controller to approach the track The control wheel, away from the track control wheel and close to the track control wheel, the first sliding gear is rotatably installed on the rotating bracket, the first driving gear shaft and the second sliding gear are rotatably installed on the lifting base, the first sliding gear and the first driving gear The shafts are meshed with each other, and the second drive pinion is installed on the translation base. The second sliding gear meshes with the second drive pinion. The hydraulic clutch of the first controller is linked with the driving screw, the first sliding gear is linked with the first driving gear through the hydraulic clutch of the first controller, and the first sliding gear is linked with the second driving gear through the hydraulic clutch of the second controller. The bed motion trajectory realization method comprises the following realization steps:

1) Control the rotation of the drive screw, the drive screw drives the trajectory control wheel to move linearly, the trajectory control wheel first presses on the pressure rod of the first controller, thereby pushing the hydraulic cylinder of the first controller to generate oil pressure, driving the first The hydraulic clutch of the controller is active, so as to realize the linkage between the first sliding gear and the first driving gear, and the driving screw drives the first sliding gear through the second driving pinion, the second sliding gear, and the first driving pinion, thereby finally driving the second A drive gear rotates, thereby driving the first support plate gear and the second support plate gear to rotate, and the rotation directions of the first support plate gear and the second support plate gear are opposite, thereby driving the first support plate and the second support plate in opposite directions. direction, so that the first bed board part rotates the back of the human body, and the second bed board part rotates the thigh of the human body.

2) When the trajectory control wheel linearly moves to the pressure rod of the second controller, the trajectory control wheel and the pressure rod of the first controller are disengaged, so that the hydraulic clutch of the first controller is activated, and the first sliding gear and the second controller are disconnected. The linkage of a driving gear, the trajectory control wheel pushes the hydraulic cylinder of the second controller, generates oil pressure, and drives the hydraulic clutch of the second controller to move, thereby realizing the linkage of the first sliding gear and the second driving gear, thereby driving the lifting nut pivot, thereby lifting the swivel stand, thereby lifting the patient,

3) When the trajectory control wheel linearly moves to the pressure rod of the third controller, the trajectory control wheel and the pressure rod of the second controller are disengaged, so that the hydraulic clutch of the second controller is activated, and the first sliding gear and the first sliding gear are disconnected. The linkage of the two drive gears, the trajectory control wheel pushes the hydraulic cylinder of the third controller to generate oil pressure, and drives the hydraulic clutch of the third controller to move, so as to realize the linkage between the translation screw and the drive screw, thereby pushing the lifting base to move relative to the translation base , when the first bed board and the second bed board drive the patient to move above the wheelchair, the trajectory control wheel breaks away from the pressure rod of the third controller, and during the movement of the lifting base relative to the translation base, the first left control section controls the first control The hydraulic cylinder of the controller is far away from the trajectory control wheel, and the second middle control section controls the hydraulic cylinder of the second controller to be far away from the trajectory control wheel, so as to avoid the pressure rod of the first controller and the second controller during the movement of the lifting base relative to the translation base. The pressure rod of the second controller is in contact with the track control wheel, and the pressure bar of the second controller returns to the position where the track control wheel can be contacted through the second left control section;

4) When the trajectory control wheel linearly moves to the pressure rod of the second controller, the trajectory control wheel will withstand a reversing valve, and the reversing valve is set on the hydraulic cylinder of the second controller and the hydraulic pressure of the hydraulic cylinder of the second controller. On the oil pipe on the clutch, the hydraulic cylinder is driven by the hydraulic clutch, so as to realize the linkage between the first sliding gear and the second driving gear, thereby driving the lifting nut to rotate in reverse, so that the patient is placed on the seat of the wheelchair and the wheelchair is pushed away;

5) Rotate the driving screw in the opposite direction, and the first bed board and the second bed board will gradually return to their original positions and snap into the installation grooves.

Preferably, the hydraulic clutch includes a rotating shaft, a cylinder, a piston, a first piston rod, a first transmission gear, a second transmission gear, a first friction plate and a second friction plate, the first transmission gear is fixed on the rotating shaft, and the piston Slidingly installed in the cylinder, the cylinder is provided with hydraulic oil, one end of the first piston rod is fixed to one end of the piston, the first friction plate is fixed to the other end of the first piston rod, the piston, the second A piston rod and the first friction plate are provided with a rotating shaft installation hole for passing through the rotating shaft. The piston and the rotating shaft are connected by splines, so that the piston is radially fixed relative to the rotating shaft and the piston can slide axially relative to the rotating shaft. The cylinder is connected to the cylinder body through the oil pipe, the second friction plate is fixed on the second transmission gear, the second transmission gear is rotatably installed on the rotating shaft, the second transmission gear of the first controller meshes with the first drive gear, and the second controller The second transmission gear of the first controller meshes with the second driving gear, the first transmission gear of the first controller and the first transmission gear of the second controller mesh with the first sliding gear, and the first transmission gear of the third controller meshes with the drive screw Linkage, the second transmission gear of the third controller is linked with the translation screw, the hydraulic clutch of the second controller includes the second piston rod, the third transmission gear, the fourth transmission gear, the third friction plate and the fourth friction plate , one end of the second piston rod is fixed on the other end of the piston, the other end of the second piston rod is fixed on the third friction plate, the fourth friction plate is fixed on the third transmission gear, the third transmission gear is rotatably installed on the shaft, the second The fifth transmission gear is fixed on the gear shaft of the second driving gear, and the third transmission gear, the fourth transmission gear, and the fifth transmission gear are meshed sequentially, and the two ends of the cylinder body of the second controller are respectively connected to the Two interfaces of the three-way reversing valve, and the other interface of the three-way reversing valve is connected to the hydraulic cylinder of the second controller. With this structure, the driving screw can be continuously rotated in one direction, which can realize the continuous rotation, raising, translation, lowering and rising actions of the first bed board and the second bed board, which improves the continuity of the action.

As preferably, when the trajectory control wheel linearly moves to the tail end of the pressure rod of the third controller, the second left control section makes the pressure rod of the second controller just return to the position where the trajectory control wheel can be contacted, and the second control The pressure rod of the controller is close to the tail end of the pressure rod of the third controller, thereby improving the continuity of motion.

As a preference, one end of the first bed board is rotatably mounted on the first support plate, and a force plate groove is opened on the first bed board, and the force plate is slidably installed in the force plate groove of the first bed board, and the first bed board is provided with There is a force plate compression spring for pushing the force plate into the force plate groove, the force plate groove is provided with a force plate card slot, and the first bed plate is provided with a first card slot inserting rod for being locked into the force plate card slot, the second A card slot insertion rod is provided with a first insertion rod compression spring for pushing the first card slot insertion rod into the force plate slot, the first support plate is provided with a support plate slot, and the first bed board is provided with a The second card slot inserting rod snapped into the card slot of the support plate, the second card slot insert rod is provided with a second insert rod compression spring for pushing the second card slot insert rod into the support plate card slot, the first bed board part One end is rotated and installed with an operating handle, and the operating handle is respectively connected to the first card slot inserting rod and the second card slot inserting rod through the first connecting rod and the second connecting pipe, so that when the operating handle is rotated, the force plate will spring into the force plate slot, and can operate and rotate the first support plate, so that the first bed board and the patient are conveniently detached.

Preferably, a ratchet is fixed on the first drive gear, and a pawl is arranged beside the ratchet, and the pawl is rotatably mounted on a rotating bracket, and the rotating bracket is provided with a safety oil cylinder for driving the ratchet to rotate away from the ratchet, and the safety oil cylinder is connected to The hydraulic cylinder of the first controller, so that when the trajectory control wheel moves to the pressure rod of the first controller, the safety cylinder drives the pawl to rotate away from the ratchet, so that the first drive gear can rotate, and when the trajectory control wheel The pawl is locked on the pressing rod detached from the first controller, so that the first drive gear cannot reversely rotate, thereby ensuring that the first support plate and the second support plate will not slide down due to gravity.

Compared with the prior art, the present invention has the following advantages and effects: as long as the position of the wheelchair is fixed in advance by the escort, the patient can be rotated by operating the driving screw, and the movement is stable, the action is continuous, the operation is simple, and the patient can be rotated. Realize single-person operation, and conform to the characteristics of the human body, and will not cause discomfort; it will not affect the normal use function of the medical bed; the medical bed can realize the activities of the body muscles, and the reciprocating operation of steps 1 and 2 of the above realization method can realize the movement of the body muscles Regular activities can reduce the long-term compression of body muscles and blood vessels, and reduce the risk of poor blood flow and muscle atrophy.

Description of drawings

Fig. 1 is a structural schematic diagram of a medical bed in an initial state according to an embodiment of the present invention.

Fig. 2 is a structural schematic view of the first bed board and the second bed board of the medical bed according to the embodiment of the present invention when they rotate.

Fig. 3 is a schematic diagram of the installation structure of the first driving pinion according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of the installation structure of the first sliding gear according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the installation structure of the third drive gear according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of step 1 in the method for realizing the motion trajectory of the medical bed according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of step 2 in the method for realizing the motion trajectory of the medical bed according to the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of step 3 in the method for realizing the motion trajectory of the medical bed according to the embodiment of the present invention.

Fig. 9 is a schematic structural diagram of step 4 in the method for realizing the motion trajectory of the medical bed according to the embodiment of the present invention.

Fig. 10 is a schematic diagram of the installation structure of the first bed panel according to the embodiment of the present invention.

Fig. 11 is a schematic structural view of the ratchet according to the embodiment of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

Referring to Fig. 1-Fig. 11, this embodiment is a method for realizing the movement trajectory of a medical bed with the function of transferring patients. The medical bed includes a bed support 1, a bed board 2 and a transfer device, and the bed board 2 is fixed on the bed support 1. The transfer device includes a driving mechanism, a rotating mechanism, a lifting mechanism, a translation mechanism and a control mechanism, and the bed board 2 includes a bed board main body 21, a first bed board part 22 for supporting the back, and a second bed board part for supporting the rear of the knee joint 23. The main body 21 of the bed board is provided with an installation groove 24 for inserting the first bed board part 22 and the second bed board part 23. The two sides of the first bed board part 22 are provided with two force plates 25 for inserting into the armpits of the human body. The driving mechanism It comprises a drive screw 31 that is installed in rotation on the bed support 1, and the end of the drive screw 31 is provided with a rotating disk 32, and the rotating disk 32 is provided with a rotating handle 33; the rotating mechanism includes a rotating bracket 41, a first support plate 42, The second support plate 43, the support roller 44, the first support plate gear 45 and the second support plate gear 46, the first support plate 42 and the second support plate 43 are arc-shaped, and the center of circle of the first support plate 42 1. The centers of circles of the second support plate 43 coincide with each other, so as to adapt to the characteristics of the human body (the body and the lower limbs are all rotation points with the buttocks), and the first bed board part 22 and the second bed board part 23 are respectively fixed on the upper end, The upper end of the second support plate 43, the left and right sides of the first support plate 42 and the second support plate 43 are provided with arc-shaped guide rails 48, the inner and outer sides of the guide rail 48 are all provided with support rollers 44, and the support rollers 44 Pressed on the guide rail 48, the inside or outside of the first support plate 42 is provided with a circular arc-shaped first rack 471, the first rack 471 meshes with the first support plate gear 45, and the second support plate The inner side or the outer side of the plate 43 is provided with a second rack 472 in an arc shape, the second rack 472 meshes with the second support plate gear 46, the support roller 44, the first support plate gear 45 and the second support plate gear 46 Rotatingly installed on the rotating bracket 41, the guide rail 48 is inclined to the sides of the first support plate 42 and the second support plate 43, thereby improving the support stability of the support roller 44, the first support plate gear 45 and the second support plate gear 46 are respectively arranged on both sides of the first drive gear 49 and the first support plate gear 45 and the second support plate gear 46 are all engaged with the first drive gear 49; the lifting mechanism includes a lifting base 51, a lifting nut, a lifting screw rod 52, a Two driving gears 53, the lifting nut is rotatably installed on the rotating bracket 41, the lifting nut and the lifting screw rod 52 are threadedly matched, the second driving gear 53 drives the lifting nut, and the lifting screw rod 52 is vertically arranged and rotated. On the lifting base 51, so that the rotating bracket 41 can vertically reciprocate relative to the lifting base 51; the translation mechanism includes a translation base 61, a translation nut, a translation screw 62 and a third drive gear 63, and the translation nut is rotatably mounted on On the lifting base 51, the translation nut and the translation screw 62 are threaded, and the first Three driving gears 63 drive the translation screw 62, and the translation screw 62 is horizontally arranged and rotatably mounted on the translation base 61, so that the lifting base 51 can reciprocate horizontally relative to the translation base 61; the control mechanism includes a trajectory control wheel 711, a first control 72, the second controller 73, the third controller 74, the first controller 72, the second controller 73, the third controller 74 all include a pressure rod 81, a hydraulic cylinder 82 and a hydraulic clutch 83, the pressure rod 81 on the piston rod of the fixed hydraulic cylinder 82, the hydraulic cylinder 82 is connected to the hydraulic clutch 83 through the oil pipe, the track control wheel 711 is installed on the track control nut 712, the track control nut 712 is installed on the track control screw rod 713, and the track control nut 712 is slidingly installed on the translation base 61, the hydraulic cylinder 82 of the third controller 74 is fixed on the translation base 61, the hydraulic cylinder 82 of the first controller 72, and the hydraulic cylinder 82 of the second controller 73 are slidingly installed on the lifting base 51 Above, the translation base 61 is provided with a first controller track 714 and a second controller track 715. In this embodiment, the first controller track 714 and the second controller track 715 are the same controller track. The first control track Two first controller control wheels 716 are arranged on the hydraulic cylinder 82 of the device 72, and the two first controller control wheels 716 respectively abut against the two sides of the first controller rail 714, and the hydraulic pressure of the second controller 73 Two second controller control wheels 717 are arranged on the cylinder 82, and the two second controller control wheels 717 respectively abut against the two sides of the second controller track 715, and the first controller track 714 is connected by the first left The control section 7141 and the first right control section 7142 are composed of the first left control section 7141 and the first right control section 7142 respectively controlling the hydraulic cylinder 82 of the first controller 72 to move away from the trajectory control wheel 711 and close to the trajectory control wheel 711, the first The controller track 714 is composed of the second left control section 7151, the second middle control section 7152 and the second right control section 7153 connected in sequence, the second left control section 7151, the second middle control section 7152 and the second right control section 7153 Respectively control the hydraulic cylinder 82 of the second controller 73 close to the trajectory control wheel 711, away from the trajectory control wheel 711 and close to the trajectory control wheel 711, the first sliding gear 91 is rotated on the rotating bracket 41, and the first sliding gear 91 is installed on the lifting base 51. A driving pinion 92 and a second sliding gear 93, the first sliding gear 91 meshes with the first driving pinion 92, the second driving pinion 94 is installed in rotation on the translation base 61, the second sliding gear 93 and the second driving pinion The pinion shaft 94 is meshed, the second drive pinion shaft 94, the trajectory control screw 713 are linked with the drive screw 31, the translation screw 62 is linked with the drive screw 31 via the hydraulic clutch 83 of the third controller 74, and the first slide gear 91 is linked via the first slide gear 91. The hydraulic clutch 83 of a controller 72 is linked with the first drive gear 49, and the first sliding gear 91 is connected via the hydraulic clutch of the second controller 73. 83 and the second drive gear 53 realize linkage, and the method for realizing the motion trajectory of the medical bed includes the following steps:

1) Control the rotation of the drive screw 31, the drive screw 31 drives the trajectory control wheel 711 to move linearly, the trajectory control wheel 711 first presses on the pressure rod 81 of the first controller 72, thereby pushing the hydraulic cylinder 82 of the first controller 72 , to generate oil pressure, to drive the hydraulic clutch 83 of the first controller 72 to move, thereby realizing the linkage between the first sliding gear 91 and the first driving gear 49, and the driving screw 31 via the second driving pinion 94, the second sliding gear 93, The first drive pinion 92 drives the first sliding gear 91, thereby finally driving the first drive gear 49 to rotate, thereby driving the first support plate gear 45 and the second support plate gear 46 to rotate, the first support plate gear 45 and the second support plate gear The direction of rotation of the plate gear 46 is opposite, thereby driving the first support plate 42 and the second support plate 43 to rotate in opposite directions, so that the first bed board part 22 rotates the human body's back, and the second bed board part 23 rotates the human body's thigh.

2) When the track control wheel 711 linearly moves onto the pressure bar 81 of the second controller 72, the track control wheel 711 and the pressure bar 81 of the first controller 72 disengage, so that the hydraulic clutch 83 of the first controller 72 is active, Disconnect the linkage between the first sliding gear 91 and the first driving gear 49, the trajectory control wheel 711 pushes the hydraulic cylinder 82 of the second controller 73 to generate oil pressure, and drives the hydraulic clutch 83 of the second controller 73 to move, thereby realizing the first The linkage between a sliding gear 91 and the second driving gear 53 drives the lifting nut to rotate, thereby lifting the rotating bracket 41, thereby lifting the patient,

3) When the track control wheel 711 linearly moves onto the pressure bar 81 of the third controller 74, the track control wheel 711 and the pressure bar 81 of the second controller 73 disengage, so that the hydraulic clutch 83 of the second controller 73 is active, Disconnect the linkage between the first sliding gear 91 and the second driving gear 53, and the trajectory control wheel 711 pushes the hydraulic cylinder 82 of the third controller 74 to generate oil pressure, and drives the hydraulic clutch 83 of the third controller 74 to move, thereby realizing translation The linkage between the screw rod 62 and the driving screw rod 31 pushes the lifting base 51 to move relative to the translation base 61. When the first bed board part 22 and the second bed board part 23 drive the patient to move above the wheelchair, the trajectory control wheel 711 is separated from the third controller 74 During the movement of the lift base 51 relative to the translation base 61, the first left control section 7141 controls the hydraulic cylinder 82 of the first controller 72 to move away from the trajectory control wheel 711, and the second middle control section 7152 controls the second controller The hydraulic cylinder 82 of 73 is away from the trajectory control wheel 711, thereby avoiding the contact between the pressure rod 81 of the first controller 72, the depression rod 81 of the second controller 73 and the trajectory control wheel 711 during the movement of the lifting base 51 relative to the translation base 61 , and through the second left control section 7151, the pressure rod 81 of the second controller 73 returns to the position where the trajectory control wheel 711 can be contacted;

4) When the track control wheel 711 linearly moves to the pressure rod 81 of the second controller 73, the track control wheel 711 withstands a reversing valve, and the reversing valve is arranged on the hydraulic cylinder 82 of the second controller 73 and the second On the oil pipe on the hydraulic cylinder 82 hydraulic clutch 83 of the controller 73, the hydraulic cylinder 82 hydraulic clutch 83 is driven, thereby realizing the linkage of the first sliding gear 91 and the second driving gear 53, thereby driving the lifting nut to reversely rotate, thereby The patient is placed on the seat of the wheelchair and the wheelchair is pushed away;

5) Rotate the driving screw 31 in the opposite direction, and the first bed board 22 and the second bed board 2 gradually return to the initial position and snap into the installation groove 24 .

Preferably, the hydraulic clutch 83 includes a rotating shaft 831, a cylinder body 8321, a piston 8322, a first piston rod 8323, a first transmission gear 8331, a second transmission gear 8332, a first friction plate 8341 and a second friction plate 8342, the first transmission The gear 8331 is fixed on the rotating shaft 831, the piston 8322 is slidably installed in the cylinder 8321, the cylinder 8321 is provided with hydraulic oil, one end of the first piston rod 8323 is fixed on one end of the piston 8322, and the first friction The plate 8341 is fixed on the other end of the first piston rod 8323, the piston 8322, the first piston rod 8323, and the first friction plate 8341 are provided with a shaft 831 installation hole for passing through the shaft 831, and the piston 8322 and the shaft 831 They are connected by splines, so that the piston 8322 is radially fixed relative to the rotating shaft 831 and the piston 8322 can slide axially relative to the rotating shaft 831. The hydraulic cylinder 82 is connected to the cylinder body 8321 through the oil pipe, and the second friction plate 8342 is fixed on the second transmission On the gear 8332, the second transmission gear 8332 is rotatably installed on the rotating shaft 831, the second transmission gear 8332 of the first controller 72 meshes with the first driving gear 49, the second transmission gear 8332 of the second controller 73 and the second driving gear 49 mesh. The gear 53 meshes, the first transmission gear 8331 of the first controller 72 and the first transmission gear 8331 of the second controller 73 mesh with the first sliding gear 91, the first transmission gear 8331 of the third controller 74 and the driving screw 31 linkage, the second transmission gear 8332 of the third controller 74 is linked with the translation screw 62, and the hydraulic clutch 83 of the second controller 73 includes a second piston rod 8324, a third transmission gear 8333, a fourth transmission gear 8334, a Three friction plates 8343 and the fourth friction plate 8344, one end of the second piston rod 8324 is fixed on the other end of the piston 8322, the other end of the second piston rod 8324 is fixed on the third friction plate 8343, and the fourth friction plate 8344 is fixed on the third On the transmission gear 8333, the third transmission gear 8333 is rotatably installed on the rotating shaft 831, the fifth transmission gear is fixed on the gear shaft of the second drive gear 53, the third transmission gear 8333, the fourth transmission gear 8334, the fifth transmission gear 8335 The two ends of the cylinder 8321 of the second controller 73 are respectively connected to the two ports of the three-way reversing valve 835 through separate oil pipes, and the other port of the three-way reversing valve 835 is connected to the second control valve. The hydraulic cylinder 82 of the device 73. With this structure, the driving screw 31 can be continuously rotated in one direction, which can realize the continuous rotation, raising, translation, descending and rising actions of the first bed board member 22 and the second bed board member 23, which improves the continuity of the action.

As preferably, when the trajectory control wheel 711 linearly moves to the tail end of the pressure rod 81 of the third controller 74, the second left control section 7151 makes the pressure rod 81 of the second controller 73 just return to the trajectory control wheel 711. In the contact position, the pressing rod 81 of the second controller 73 is close to the tail end of the pressing rod 81 of the third controller 74, thereby improving the continuity of the movement.

As a preference, one end of the first bed board 22 is rotatably mounted on the first support plate 42, the first bed board 22 is provided with a force board groove 261, and the force board 25 is slidably installed in the force board groove 261 of the first bed board 22 , the first bed board part 22 is provided with a force board 25 compression spring for pushing the force board 25 into the force board groove 261, and the force board groove 261 is provided with a force board 25 card slot, and the first bed board part 22 is provided with a force plate for clamping Insert the first draw-in slot insertion rod 262 of the force plate 25 draw-in slot, the first draw-in slot insert rod 262 is provided with the first insert rod compression spring for pushing the first draw-in slot insert rod 262 into the force plate 25 draw-in slot, the second A support plate 42 is provided with a support plate slot, the first bed board part 22 is provided with a second slot insertion rod 263 for snapping into the support plate slot, and the second slot insertion rod 263 is provided with a second slot insertion rod 263 for inserting the second The draw-in slot inserting rod 263 pushes into the second inserting rod compression spring of the support plate draw-in slot, and one end of the first bed board part 22 is rotatably equipped with an operating handle 266, and the operating handle 266 passes through the first connecting rod 264 and the second connecting pipe respectively. Connect the first card slot insertion rod 262 and the second card slot insertion rod 263, so that when the operating handle 266 is rotated, the force plate 25 is ejected into the force plate 25 card slot, and the first support plate 42 can be operated to rotate, thereby This makes it easy to disengage the first bed board 22 from the patient.

A ratchet 101 is fixed on the first drive gear, and a ratchet 102 is arranged beside the ratchet 101. The ratchet 102 is rotatably mounted on a rotating bracket, and the rotating bracket is provided with a safety oil cylinder 103 for driving the ratchet to rotate away from the ratchet. 103 is connected to the hydraulic cylinder of the first controller, so that when the trajectory control wheel moves to the pressure rod of the first controller, the safety oil cylinder drives the ratchet to rotate away from the ratchet, so that the first drive gear can rotate. The trajectory control wheel breaks away from the depression bar of the first controller, and the pawl is locked, so that the first drive gear cannot rotate in reverse, thereby ensuring that the first support plate and the second support plate will not slide down due to gravity.

The above content described in this specification is only an illustration of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the description of the present invention or exceed the scope defined in the claims , should belong to the protection scope of the present invention.

Claims (5)

1. one kind has the medical bedstead movement locus implementation method of transfer patient function, it is characterized in that: medical bedstead comprises bedrest, bed board and transfer device, described bed board is fixed on bedrest, described transfer device comprises driving mechanism, rotating mechanism, elevating mechanism, translation mechanism and controlling organization, bed board comprises bed board main body, for supporting the first bed board part at back and the second bed board part for supporting knee joint rear portion, bed board main body offer for embedding the first bed board part, the mounting groove of the second bed board part, the both sides of the first bed board part arrange two pieces for what insert human body axillary fossa place and put forth effort plate, driving mechanism comprises the drive screw be rotatably installed on bedrest, the end of drive screw is provided with rolling disc, rolling disc is provided with turning handle, described rotating mechanism comprises swinging mounting, first gripper shoe, second gripper shoe, support roller, first gripper shoe gear and the second gripper shoe gear, described first gripper shoe, second gripper shoe is circular arc, and the center of circle of the first gripper shoe, the center of circle of the second gripper shoe coincides, first bed board part and the second bed board part are separately fixed at the upper end of the first gripper shoe, the upper end of the second gripper shoe, the left and right sides of described first gripper shoe and the second gripper shoe is provided with the guide rail in circular arc, the inside and outside both sides of guide rail all arrange support roller, support roller is pressed on guide rail, the inner side of described first gripper shoe or arranged outside have the first tooth bar in circular arc, first tooth bar and the first gripper shoe gears meshing, the inner side of described second gripper shoe or arranged outside have the second tooth bar in circular arc, second tooth bar and the second gripper shoe gears meshing, support roller, first gripper shoe gear and the second gripper shoe pinion rotation are arranged on swinging mounting, the side of relative first gripper shoe of guide rail and the second gripper shoe is inclined to set, thus improve the stability of strutting system of support roller, first gripper shoe gear and the second gripper shoe gear are separately positioned on the both sides of the first driven wheel and the first gripper shoe gear and the engagement of the second gripper shoe gear all with the first driven wheel, elevating mechanism comprises lifting pedestal, lifting nut, lifting screw, the second driven wheel, described lifting nut is rotatably installed on swinging mounting, described lifting nut and lifting screw pass through threaded engagement, described second driving gear drives lifting nut, lifting screw in vertically arranging and being rotatably installed on lifting pedestal, thus makes swinging mounting vertically to move back and forth by OQ t base, described translation mechanism comprises translation base, translational nut, translating screw and the 3rd driven wheel, described translational nut is rotatably installed on lifting pedestal, described translational nut, translating screw pass through threaded engagement, described 3rd driving gear drives translating screw, described translating screw is horizontally disposed with and is rotatably installed on translation base, thus makes lifting pedestal can relative translation base horizontal reciprocating movement, controlling organization comprises TRAJECTORY CONTROL wheel, first controller, second controller, 3rd controller, described first controller, second controller, 3rd controller includes depression bar, hydraulic cylinder and hydraulic clutch, on the piston rod of depression bar fixative cylinder pressure, hydraulic cylinder is connected to hydraulic clutch through oil pipe, described TRAJECTORY CONTROL wheel is arranged on TRAJECTORY CONTROL nut, TRAJECTORY CONTROL nut is arranged on TRAJECTORY CONTROL screw rod, TRAJECTORY CONTROL nut is slidably mounted on translation base, the hydraulic cylinder of the 3rd controller is fixed on translation base, the hydraulic cylinder of the first controller, the hydraulic cylinder of second controller is slidably mounted on lifting pedestal, translation base is provided with the first controller track, second controller track, the hydraulic cylinder of described first controller is provided with two the first controller control wheels, two the first controller control wheels are against the both sides of the first controller track respectively, the hydraulic cylinder of described second controller is provided with two second controller control wheels, two second controller control wheels are against the both sides of second controller track respectively, first controller track is made up of the connect successively first left control section and the first right control section, first left control section and the first right control section control the hydraulic cylinder of the first controller respectively away from TRAJECTORY CONTROL wheel and near TRAJECTORY CONTROL wheel, first controller track is by the connect successively second left control section, in second, control section and the second right control section are formed, second left control section, the hydraulic cylinder that in second, control section and the second right control section control second controller is respectively taken turns near TRAJECTORY CONTROL, away from TRAJECTORY CONTROL wheel and near TRAJECTORY CONTROL wheel, swinging mounting is rotatablely equipped with the first balladeur train, lifting pedestal is rotatablely equipped with the first driving gear axle and the second balladeur train, first balladeur train is meshed with the first driving gear axle, translation base is rotatablely equipped with the second driving gear axle, second balladeur train and the second driving gear axle are meshed, second driving gear axle, TRAJECTORY CONTROL screw rod and drive screw link, translating screw realizes interlock via the hydraulic clutch of the 3rd controller and drive screw, first balladeur train realizes interlock via the hydraulic clutch of the first controller and the first driven wheel, first balladeur train realizes interlock via the hydraulic clutch of second controller and the second driven wheel, medical bedstead movement locus implementation method comprises following performing step:

1) drive screw turns is controlled, described drive screw drives the rectilinear movement of TRAJECTORY CONTROL wheel, first TRAJECTORY CONTROL wheel is pressed on the depression bar of the first controller, thus promote the hydraulic cylinder of the first controller, produce oil pressure, drive the hydraulic clutch of the first controller movable, thus realize the interlock of the first balladeur train and the first driven wheel, drive screw is via the second driving gear axle, second balladeur train, first driving gear axle drives the first balladeur train, thus final first driven wheel that drives rotates, thus drive the first gripper shoe gear and the second gripper shoe pinion rotation, the rotation direction of the first gripper shoe gear and the second gripper shoe gear is contrary, thus drive the first gripper shoe, second gripper shoe is rotated towards contrary direction, thus the first bed board part rotates human body back, second bed board part rotates human thigh,

2) when TRAJECTORY CONTROL is taken turns on rectilinear motion to the depression bar of second controller, the depression bar of TRAJECTORY CONTROL wheel and the first controller departs from, thus the hydraulic clutch of the first controller is movable, disconnect the interlock of the first balladeur train and the first driven wheel, TRAJECTORY CONTROL wheel promotes the hydraulic cylinder of second controller, produce oil pressure, drive the hydraulic clutch of second controller movable, thus realize the interlock of the first balladeur train and the second driven wheel, thus drive lifting nut to rotate, thus lift swinging mounting, thus lift patient

3) when TRAJECTORY CONTROL is taken turns on rectilinear motion to the depression bar of the 3rd controller, the depression bar of TRAJECTORY CONTROL wheel and second controller departs from, thus the hydraulic clutch of second controller is movable, disconnect the interlock of the first balladeur train and the second driven wheel, the hydraulic cylinder of TRAJECTORY CONTROL wheel promotion the 3rd controller, produce oil pressure, drive the hydraulic clutch of the 3rd controller movable, thus realize the interlock of translating screw and drive screw, thus promotion lifting pedestal relative translation base moves, when the first bed board part, time second bed board part drives patient to move to above wheelchair, the depression bar of TRAJECTORY CONTROL wheel disengaging the 3rd controller, and in lifting pedestal relative translation base moving process, the hydraulic cylinder that first left control section controls the first controller is taken turns away from TRAJECTORY CONTROL, in second, the hydraulic cylinder of control section control second controller is taken turns away from TRAJECTORY CONTROL, thus avoid in lifting pedestal relative translation base moving process, the depression bar of the first controller, what the depression bar of second controller was taken turns with TRAJECTORY CONTROL contacts, and make the depression bar of second controller again revert to TRAJECTORY CONTROL by the second left control section to take turns the position that can contact,

4) when TRAJECTORY CONTROL is taken turns on rectilinear motion to the depression bar of second controller, TRAJECTORY CONTROL wheel withstands a reversal valve, reversal valve is arranged on the oil pipe on the hydraulic cylinder of second controller and the cylinder hydraulic clutch of second controller, cylinder hydraulic clutch is driven, thus realize the interlock of the first balladeur train and the second driven wheel, thus drive lifting nut to rotate backward, thus patient is placed on the seat support of wheelchair, push wheelchair open;

5) rotate backward drive screw, the first bed board part, the second bed board progressively return to initial position and snap in mounting groove.

2. the medical bedstead movement locus implementation method with transfer patient function according to claim 1, it is characterized in that: hydraulic clutch comprises rotating shaft, cylinder body, piston, first piston bar, first travelling gear, second travelling gear, first friction plate and the second friction plate, first travelling gear is fixed in rotating shaft, described piston is slidably mounted in cylinder body, hydraulic oil is provided with in cylinder body, one end of described first piston bar is fixed on one end of piston, described first friction plate is fixed on the other end of described first piston bar, piston, first piston bar, first friction plate offers the rotating shaft installing hole for wearing rotating shaft, realize connecting by spline between described piston and rotating shaft, thus make piston phase countershaft radial direction fixing and piston can slide axially by phase countershaft, hydraulic cylinder is connected to cylinder body through oil pipe, second friction plate is fixed on the second travelling gear, second travelling gear is rotatably installed in rotating shaft, second travelling gear of the first controller and the engagement of the first driven wheel, second travelling gear of second controller and the engagement of the second driven wheel, first travelling gear of the first controller and the first travelling gear of second controller engage with the first balladeur train, first travelling gear and the drive screw of the 3rd controller link, second travelling gear and the translating screw of described 3rd controller link, the hydraulic clutch of second controller comprises the second piston rod, 3rd travelling gear, 4th travelling gear, 3rd friction plate and the 4th friction plate, one end of second piston rod is fixed on the other end of piston, the other end of the second piston rod fixes the 3rd friction plate, 4th friction plate is fixed on the 3rd travelling gear, 3rd travelling gear is rotatably installed in rotating shaft, the gear shaft of the second driven wheel is fixed with the 5th travelling gear, 3rd travelling gear, 4th travelling gear, 5th travelling gear engages successively, the two ends of the cylinder body of described second controller are connected to two interfaces of three-way diverter valve each via independent oil pipe, another interface of three-way diverter valve is connected to the hydraulic cylinder of second controller.

3. the medical bedstead movement locus implementation method with transfer patient function according to claim 1, it is characterized in that: when TRAJECTORY CONTROL wheel rectilinear motion is to the tail end of the depression bar of the 3rd controller time, second left control section makes the depression bar of second controller just again revert to TRAJECTORY CONTROL and takes turns the position that can contact, the depression bar of second controller near the tail end of the depression bar of the 3rd controller, thus improves the continuity of motion.

4. the medical bedstead movement locus implementation method with transfer patient function according to claim 1, it is characterized in that: one end of the first bed board part is rotatably installed in the first gripper shoe, first bed board part offers and puts forth effort board slot, that puts forth effort that plate is slidably mounted on the first bed board part puts forth effort in board slot, be provided with in first bed board part for by put forth effort plate head into put forth effort board slot put forth effort plate stage clip, put forth effort board slot offers and put forth effort board groove, be provided with for snapping in the first draw-in groove inserted link putting forth effort board groove in first bed board part, first draw-in groove inserted link is provided with for the first draw-in groove inserted link being headed into the first inserted link stage clip putting forth effort board groove, first gripper shoe offers gripper shoe draw-in groove, the second draw-in groove inserted link for snapping in gripper shoe draw-in groove is provided with in first bed board part, second draw-in groove inserted link is provided with the second inserted link stage clip for the second draw-in groove inserted link being headed into gripper shoe draw-in groove, one end of first bed board part is rotatablely equipped with operator handle, operator is passing through head rod, second connection tube connects the first draw-in groove inserted link respectively, second draw-in groove inserted link, thus can rotating operation hands time, make to put forth effort plate to spring into and put forth effort board groove, and rotation first gripper shoe can be operated, thus make to facilitate the first bed board part and patient to depart from.

5. the medical bedstead movement locus implementation method with transfer patient function according to claim 1, it is characterized in that: the first driven wheel is fixed with ratchet, ratchet is other is provided with ratchet, ratchet is rotatably installed on swinging mounting, swinging mounting is provided with for driving ratchet towards the insurance oil cylinder rotated away from ratchet direction, insurance oil cylinder is connected to the hydraulic cylinder of the first controller, thus make when TRAJECTORY CONTROL wheel moves on the depression bar of the first controller, insurance hydraulic oil cylinder driving ratchet is towards rotating away from ratchet direction, thus the first driven wheel can be rotated, on the depression bar of TRAJECTORY CONTROL wheel disengaging first controller, ratchet is locked, thus the first driven wheel can not be rotated backward, thus ensure the first gripper shoe, second gripper shoe can not be subject to Gravitational sliding.