CN110251324A - A kind of operation trolley for transferring patients conveniently - Google Patents

Abstract

The invention discloses a surgical trolley for transferring patients conveniently, which comprises a frame, a cross brace, a bed board, load-bearing wheel support legs, and auxiliary wheel support legs. A sleeve is installed, load-bearing wheels are fixedly installed at both ends, and the supporting leg of the auxiliary wheel is rotatable. A second rotating shaft is installed on the second rotating shaft. The supporting wheel and the auxiliary wheel are installed on the second rotating shaft. The sleeve and the second rotating shaft are connected through the first transmission mechanism. , the frame is fixed with a strip pad for carrying the bed board, the screw rotates to drive the nut block to move, the nut block and the baffle at the lower end of the bed board are hinged through the pin shaft, and the screw and the sleeve are selectively tensioned through the second transmission mechanism Drive connection. The invention enables the patient to slide smoothly onto the sickbed by tilting the bed board, without manual handling, which facilitates the transfer of the patient, does not cause secondary injury to the patient, and reduces the work difficulty of the medical staff.

Description

A kind of operation trolley for transferring patients conveniently

technical field

The invention relates to the technical field of medical equipment, in particular to a surgical trolley for conveniently transferring patients.

Background technique

After the patient's operation, the patient needs to be transferred to the hospital bed. The existing surgical trolley only has the function of transferring the patient, and it needs to be manually moved to transfer the patient to the hospital bed. It is strong, inconvenient to operate, and can easily cause changes in the patient's position, stretching of the surgical incision, etc., which will increase the pain of the patient, affect the recovery, and increase the difficulty of postoperative care. Difficult work has added great difficulty to medical staff.

Contents of the invention

The purpose of the present invention is in order to solve above-mentioned problem, has designed a kind of operation trolley conveniently to transfer patient.

The technical solution of the present invention to achieve the above object is a surgical trolley for conveniently transferring patients, including a frame, a cross brace, a bed board, load-bearing wheel support legs, and auxiliary wheel support legs. The frame is a rectangular frame, and the frame has two The center of the long side is fixed with load-bearing wheel support legs, and the inner side of the frame is fixed with two cross braces symmetrically distributed on both sides of the load-bearing wheel support legs. The cross braces are parallel to the short sides of the frame, and the front and rear ends of the cross braces are The auxiliary wheel support legs are fixed, and the two load-bearing wheel support legs are rotatably mounted with a first rotating shaft through the first bearing, and the middle section of the first rotating shaft is rotatably installed with a sleeve through the second bearing, and the two first rotating shafts are The end of the load-bearing wheel extends to the outside of the support leg of the load-bearing wheel and is fixedly installed with a load-bearing wheel. The end of the load-bearing wheel facing away from the first shaft is equipped with a handle ring. The two support legs of the auxiliary wheel on the same side are rotatably installed through the third bearing. There is a second rotating shaft, the two ends of the second rotating shaft extend to the outside of the supporting legs of the load-bearing wheels and the supporting wheels are fixedly installed, the middle section of the second rotating shaft is rotatably installed with two auxiliary wheels, the sleeve and the two second The rotating shaft is connected through the transmission of the first transmission mechanism. The two short sides of the frame are fixed with strip pads for carrying the bed board. The strip pads are slidably connected with the bed board. One end of the strip pads has a The arc-shaped chamfering of the bed board is fixed with a rotating fixed block on both sides of the lower end of the bed board. One end of the rotating fixed block facing the bar pad is rotatably installed with a third rotating shaft through the fourth bearing. The other end of the third rotating shaft A connecting block is fixedly connected, and a chute corresponding to the rotating fixed block is provided on the outside of the two short sides of the frame, and a slider is slidably connected in the chute, and the slider and the connecting block are fixedly connected by a connecting shaft. The frame is rotatably installed with a lead screw through the fifth bearing. The lead screw is located directly above and parallel to the first rotating shaft. A nut block is threaded on the lead screw. The lower end of the bed board is fixed on the side away from the arc-shaped chamfer There is a baffle, the nut block and the baffle are hinged through a pin shaft, and the lead screw and the sleeve are selectively tensioned and driven through a second transmission mechanism.

Preferably, the first transmission mechanism includes a transmission sprocket, a double sprocket and a transmission chain, the number of the transmission sprocket and the transmission chain is two, and the transmission sprocket is fixedly installed on the second rotating shaft, The duplex sprocket is fixedly installed on the sleeve, and the duplex sprocket is connected to the transmission sprocket through a transmission chain.

Preferably, the second transmission mechanism includes a driving pulley, a driven pulley, a transmission belt, a shift fork, a tension shaft, and a tension pulley, the shift fork is fixed on the end of the sleeve away from the arc chamfer, and the tension One end of the tension shaft is fixedly connected with the shift fork and the other end is equipped with a tensioning pulley, the driving pulley is mounted on the first rotating shaft, the driven pulley is mounted on the lead screw, and the tensioning pulley is selectively connected with the driving pulley, The driven pulley cooperates to tension the drive belt.

Preferably, when the frame is in a horizontal state, the bottom ends of the bearing wheels are lower than the bottom ends of the auxiliary wheels.

Preferably, one end of the supporting wheel facing the supporting leg of the auxiliary wheel is fixed with a stirring pin matched with the supporting leg of the auxiliary wheel, and a fixing pin corresponding to the stirring pin is fixed on the supporting leg of the auxiliary wheel, and the stirring pin and the fixing pin A compression spring is connected between them.

Preferably, a turning handle is fixed at one end of the supporting wheel facing away from the supporting leg of the auxiliary wheel.

Preferably, the axes of the pin shaft and the third rotating shaft are coaxial.

Preferably, the supporting wheel is a cam, the diameter of the far hub of the supporting wheel is larger than the diameter of the auxiliary wheel, the diameter of the proximal hub of the supporting wheel is smaller than the diameter of the auxiliary wheel, and the supporting wheel can rotatably replace the bearing wheel and the auxiliary wheel Land for support.

Preferably, the inner wall of the sleeve is provided with an annular groove for limiting the position of the second bearing. A circlip for the shaft at the second bearing position.

Beneficial effects of the present invention: the design of the load-bearing wheels and the auxiliary wheels makes the operation trolley easy to move and easily cross obstacles. By turning the turning handle, the support wheels can bear the load on the ground, and the load-bearing wheels are suspended in the air, thereby fixing the trolley, and turning the handle ring can make the trolley The bed board drives the patient to move laterally, the bed board tilts slightly at the arc-shaped chamfer, and the patient slides to the hospital bed smoothly. Difficulty of work.

Description of drawings

Fig. 1 is a schematic structural view of a surgical trolley for conveniently transferring patients according to the present invention;

Fig. 2 is a side view state diagram 1 of a surgical trolley convenient for transferring patients according to the present invention (the load-bearing wheel is on the ground state);

Fig. 3 is a side view state diagram 2 of a surgical trolley convenient for transferring patients according to the present invention (the support wheel is on the ground state);

Fig. 4 is a schematic top view of a surgical trolley for transferring patients conveniently according to the present invention;

Fig. 5 is a state diagram 3 of a surgical trolley convenient for transferring patients according to the present invention (the bed board is inclined);

Fig. 6 is a partial enlarged view of place B in Fig. 1;

Fig. 7 is a sectional view of the structure at A place in Fig. 2;

Fig. 8 is a side view of the structure at A place in Fig. 2;

Fig. 9 is a partial enlarged view of place C in Fig. 2;

Figure 10 is a partial enlarged view at D in Figure 2;

Fig. 11 is a schematic structural view of the compression spring of the present invention;

In the figure, 1. frame; 2. horizontal brace; 3. bed board; 4. load-bearing wheel support leg; 5. auxiliary wheel support leg; 6. first bearing; 7. first rotating shaft; Sleeve; 10, bearing wheel; 11, handle ring; 12, third bearing; 13, second rotating shaft; 14, supporting wheel; 15, auxiliary wheel; 16, bar pad; 17, arc chamfering; , rotating fixed block; 19, the fourth bearing; 20, the third rotating shaft; 21, connecting block; 22, chute; 23, slider; 24, connecting shaft; 25, the fifth bearing; Nut block; 28, baffle plate; 29, bearing pin; 30, drive sprocket wheel; 31, duplex sprocket wheel; 32, drive chain; 33, driving pulley; 34, driven pulley; 35, drive belt; 36, dial Fork; 37, tension shaft; 38, tension wheel; 39, mix pin; 40, fixed pin; 41, stage clip; 42, turning handle; 43, annular groove;

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings, as shown in Figure 1-11: the frame 1 is a rectangular frame 1, the center of the two long sides of the frame 1 is fixed with load-bearing wheel support legs 4, and the inside of the frame 1 is fixed with two The cross braces 2 symmetrically distributed on both sides of the load-bearing wheel support leg 4, the cross brace 2 is parallel to the short side of the frame 1, the front and rear ends of the cross brace 2 are fixed with auxiliary wheel support legs 5, and the two load-bearing wheel support legs 4 pass through the first bearing 6 The first rotating shaft 7 is rotatably installed, and the first bearing 6 is installed in the load-bearing wheel support leg 4. The end cover for protecting the first bearing 6 is fixed on the load-bearing wheel support leg 4. The middle section of the first rotating shaft 7 can pass through the second bearing 8. A sleeve 9 is installed for rotation, and two second bearings 8 are installed on the first rotating shaft 7. The two ends of the first rotating shaft 7 extend to the outside of the support leg 4 of the load-bearing wheel and the load-bearing wheel 10 is fixedly installed, and the load-bearing wheel 10 faces away from the first bearing wheel. One end of the rotating shaft 7 is equipped with a handle ring 11, and the two auxiliary wheel supporting legs 5 on the same side are all rotatably installed with a second rotating shaft 13 through a third bearing 12, and the third bearing 12 is installed in the auxiliary wheel supporting leg 5. Both ends of the rotating shaft 13 extend to the outside of the load-bearing wheel support leg 4 and are fixedly installed with a supporting wheel 14. The middle section of the second rotating shaft 13 is rotatably installed with two auxiliary wheels 15. The sleeve 9 and the two second rotating shafts 13 pass through the first transmission mechanism. Transmission connection, the two short sides of the frame 1 are fixed with strip pads 16 for carrying the bed board 3, the strip pads 16 are slidably connected with the bed board 3, and one end of the strip pad 16 has an arc-shaped chamfer matching with the bed board 3 17. The arc-shaped chamfer 17 guides the bed board 3 to tilt, and both sides of the lower end of the bed board 3 are fixed with a rotating fixed block 18, and the end of the rotating fixed block 18 facing the strip pad 16 is rotatably installed with a third rotating shaft 20 through the fourth bearing 19 , the fourth bearing 19 is embedded in the rotating fixed block 18, the other end of the third rotating shaft 20 is fixedly connected with the connecting block 21, the outside of the two short sides of the frame 1 is provided with a chute 22 corresponding to the rotating fixed block 18, and the inside of the chute 22 A slider 23 is slidingly connected, the slider 23 is fixedly connected with the connecting block 21 through a connecting shaft 24, the connecting shaft 24 is connected with the slider 23 and the connecting block 21 through a screw, and the frame 1 is rotatably installed with a lead screw 26 through a fifth bearing 25 , the fifth bearing 25 is embedded in the frame 1, and the dustproof end cover for protecting the fifth bearing 25 is fixed on the frame 1 by screws. The lead screw 26 is located directly above the first rotating shaft 7 and is parallel to it. Be connected with nut block 27, bed board 3 lower ends are fixed with baffle plate 28 away from the side of arc chamfer 17, bed board 3 is fixedly connected with baffle plate 28 by screw, nut block 27 and baffle plate 28 are hinged by pin 29, pin shaft 29 ends are fixed on the upper middle part of the baffle plate 28 and pass through the nut block 27 to be hinged with the nut block 27. The lead screw 26 and the sleeve 9 are selectively tensioned and connected by the second transmission mechanism. When the cart moves, the second transmission mechanism in a non-tensioned state;

The first transmission mechanism comprises a drive sprocket 30, a duplex sprocket 31 and a drive chain 32, and the number of the drive sprocket 30 and the drive chain 32 is two, and the drive sprocket 30 is fixedly installed on the second rotating shaft 13, and the duplex The sprocket 31 is fixedly mounted on the sleeve 9, and the duplex sprocket 31 and the transmission sprocket 30 are connected through a transmission chain 32;

The second transmission mechanism comprises a driving pulley 33, a driven pulley 34, a drive belt 35, a shift fork 36, a tension shaft 37, and a tension pulley 38, and the shift fork 36 is fixed on the end of the sleeve 9 away from the arc chamfer 17, and the tension One end of the tight shaft 37 is fixedly connected with the shift fork 36 and the other end is equipped with a tensioning pulley 38, the driving pulley 33 is installed on the first rotating shaft 7, the driven pulley 34 is installed on the leading screw 26, and the tensioning pulley 38 is selectively connected with the driving pulley. Pulley 33, driven pulley 34 cooperate to make drive belt 35 tension;

When the frame 1 is in a horizontal state, the bottom end of the load-bearing wheels 10 is lower than the bottom end of the auxiliary wheels 15, so that the auxiliary wheels 15 on both sides can selectively touch the ground;

One end of the support wheel 14 towards the auxiliary wheel support leg 5 is fixed with a mixing pin 39 that cooperates with the auxiliary wheel support leg 5, and the auxiliary wheel support leg 5 is fixed with a fixed pin 40 corresponding to the mixing pin 39, the mixing pin 39 and the fixed pin 40 There is a compression spring 41 connected between them, and the two ends of the compression spring 41 have a collar structure, which are respectively placed on the mixing pin 39 and the fixed pin 40. The axis of the fixed pin 40 is parallel to the axis of the second rotating shaft 13 and is on the same level. The compression spring 41 Always be in a compressed state, so that the mixing pin 39 is tightly pressed against the supporting leg 5 of the training wheel;

One end of the support wheel 14 facing away from the auxiliary wheel support leg 5 is fixed with a turning handle 42;

The axes of the pin shaft 29 and the third rotating shaft 20 are coaxial, so that the bed board 3 can tilt smoothly at the arc chamfer 17;

The support wheel 14 is a cam, the far hub diameter of the support wheel 14 is larger than the diameter of the auxiliary wheel 15, the near hub diameter of the support wheel 14 is smaller than the diameter of the auxiliary wheel 15, and the support wheel 14 can rotatably replace the load wheel 10 and the auxiliary wheel 15 to support the ground ;

The inner wall of the sleeve 9 is provided with an annular groove 43 for limiting the position of the second bearing 8, and the second bearing 8 is fixedly clamped in the annular groove 43. On the first shaft 7 and on both sides of the sleeve 9, there are fixed rings for limiting the position of the second bearing 8. The circlip 44 is used for the shaft at 8 positions, and the circlip 44 and the annular groove 43 cooperate to fix the second bearing 8 positions.

The working principle of this embodiment, when transferring a patient, pushes the cart, the load-bearing wheel 10 and the auxiliary wheel 15 on one side touch the ground, and supports the overall movement of the cart, and the load-bearing wheel 10 drives the first rotating shaft 7 and the driving pulley 33 to rotate, and the auxiliary wheel 15 Bearings are provided inside to rotate relative to the second rotating shaft 13, the friction between the auxiliary wheel 15 and the second rotating shaft 13 is small, the compression spring 41 is always in a compressed state, and the mixing pin 39 is pressed against the supporting leg of the auxiliary wheel by the elastic force of the compression spring 41 5, the bottom end of the support wheel 14 is higher than the bottom end of the auxiliary wheel 15 and will not contact the ground, and the friction force between the auxiliary wheel 15 and the second rotating shaft 13 is smaller than the force that the compression spring 41 continues to compress, so the second rotating shaft 13 remains stationary , the transmission belt 35 is in a non-tensioned state, so the driving pulley 33 will not drive the lead screw 26 to move;

When approaching an obstacle, the auxiliary wheel 15 at one end far away from the obstacle is exerted force, and the auxiliary wheel 15 near the end of the obstacle is suspended in the air and passes through the obstacle and then touches the ground. Minimize the patient's discomfort due to the transfer process;

When the patient needs to be moved to the hospital bed, the medical staff can use the pedal to move the rotating handle 42, and the pedaling force is greater than the force to continue compressing the compression spring 41, so that the compression spring 41 continues to compress, the support wheel 14 rotates at a certain angle, and the pin 39 Turn clockwise down again against the supporting leg 5 of the auxiliary wheel to keep the supporting wheel 14 stable. When the supporting wheel 14 rotates halfway, the compression spring 41 is compressed to the minimum value, and the rotating of the supporting wheel 14 drives the second rotating shaft 13 and the transmission sprocket 30 Rotate, transmission sprocket 30 drives duplex sprocket 31 and sleeve 9 to rotate through transmission chain 32, duplex sprocket 31 drives another transmission sprocket 30 and second rotating shaft 13 to rotate through another transmission chain 32, thereby pushes The supporting wheels 14 on both sides of the car move synchronously and are jointly supported by the ground; the sleeve 9 drives the shift fork 36 and the outer ring of the second bearing 8 to rotate, and the inner ring of the second bearing 8 is fixed on the first rotating shaft 7 and will not rotate, so that the sleeve The cylinder 9 rotates steadily at a certain angle, the shift fork 36 drives the tension shaft 37 and the tension pulley 38 to rotate, and the tension pulley 38, the driving pulley 33 and the driven pulley 34 jointly tension the transmission belt 35;

After the supporting wheel 14 landed, the load-bearing wheel 10 and the auxiliary wheel 15 were all suspended in the air. At this time, the handle ring 11 was rotated, and the handle ring 11 drove the load-bearing wheel 10, the first rotating shaft 7, and the driving pulley 33 to rotate. The tight pulley 38 and the driven pulley 34 rotate, the lead screw 26 rotates with the driven pulley 34, the nut block 27 converts the rotary motion of the lead screw 26 into a linear motion, and the nut block 27 drives the baffle plate 28 and the bed board 3 to move through the pin shaft 29 , the bed board 3 slides on the bar pad 16, the bed board 3 is connected with the slider 23 through the rotating fixed block 18, the fourth bearing 19, the third rotating shaft 20 and the connecting block 21, and the slider 23 moves along with the bed board 3 in the chute 22 Inwardly moving, the bed board 3 is restricted to move laterally in the length direction of the chute 22, the axes of the pin shaft 29 and the third rotating shaft 20 are coaxial, and when the pin shaft 29 moves to the arc-shaped chamfer 17, the bed board 3 starts to tilt and rotate The fixed block 18 rotates down along the common axis of the pin shaft 29 and the third rotating shaft 20 together with the bed board 3 , and the patient slides slowly from the inclined bed board 3 onto the hospital bed.

The above-mentioned technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention, and some changes that may be made by those skilled in the art to some parts thereof reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims (9)

1. A surgical trolley for transferring patients conveniently, comprising a frame (1), a cross brace (2), a bed board (3), load-bearing wheel support legs (4), auxiliary wheel support legs (5), the frame (1 ) is a rectangular frame (1), the center of the two long sides of the frame (1) is fixed with load-bearing wheel support legs (4), and the inner side of the frame (1) is fixed with two symmetrically distributed load-bearing wheel support legs (4) Cross braces (2) on both sides, the cross braces (2) are parallel to the short sides of the frame (1), and the front and rear ends of the cross braces (2) are fixed with auxiliary wheel support legs (5), which are characterized in that , the two load-bearing wheel support legs (4) are rotatably mounted with a first shaft (7) through a first bearing (6), and the middle section of the first shaft (7) is rotatably mounted with a second bearing (8) The sleeve (9), the two ends of the first rotating shaft (7) extend to the outside of the bearing wheel support leg (4) and the bearing wheel (10) is fixedly installed, and the bearing wheel (10) faces away from the first rotating shaft (7 ) is equipped with a handle ring (11), and the two auxiliary wheel support legs (5) on the same side are rotatably installed with a second shaft (13) through a third bearing (12), and the second shaft ( 13) The two ends extend to the outside of the load-bearing wheel support leg (4) and the support wheel (14) is fixedly installed. The middle section of the second rotating shaft (13) is rotatably installed with two auxiliary wheels (15). The sleeve ( 9) It is connected to the two second rotating shafts (13) through the first transmission mechanism, and the two short sides of the frame (1) are fixed with strip pads (16) for carrying the bed board (3). The strip-shaped spacer (16) is slidingly connected with the bed board (3), and one end of the strip-shaped spacer (16) has an arc-shaped chamfer (17) matching with the bed board (3), and both sides of the lower end of the bed board (3) are A rotating fixed block (18) is fixed, and the end of the rotating fixed block (18) facing the strip pad (16) is rotatably installed with a third rotating shaft (20) through a fourth bearing (19), and the third rotating shaft (20) The other end is fixedly connected with a connecting block (21), and the outside of the two short sides of the frame (1) is provided with a chute (22) corresponding to the rotating fixed block (18), and the chute (22) slides A slider (23) is connected, and the slider (23) is fixedly connected with the connecting block (21) through a connecting shaft (24), and the frame (1) is rotatably installed with a lead screw ( 26), the lead screw (26) is located directly above and parallel to the first rotating shaft (7), the screw (26) is threaded with a nut block (27), and the lower end of the bed board (3) is away from the arc One side of the chamfer (17) is fixed with a baffle (28), the nut block (27) and the baffle (28) are hinged through a pin (29), and the screw (26) and the sleeve (9) The drive connection is selectively tensioned by the second drive mechanism. 2. A surgical trolley for conveniently transferring patients according to claim 1, characterized in that the first transmission mechanism includes a transmission sprocket (30), a double sprocket (31) and a transmission chain (32) , the number of the transmission sprocket (30) and the transmission chain (32) is two, the transmission sprocket (30) is fixedly installed on the second rotating shaft (13), and the duplex sprocket (31) It is fixedly installed on the sleeve (9), and the double sprocket (31) is connected to the transmission sprocket (30) through a transmission chain (32). 3. A surgical trolley for conveniently transferring patients according to claim 1, characterized in that, the second transmission mechanism includes a driving pulley (33), a driven pulley (34), a transmission belt (35), a dial Fork (36), tension shaft (37), tension wheel (38), the shift fork (36) is fixed on the end of the sleeve (9) away from the arc chamfer (17), the tension shaft ( 37) One end is fixedly connected with the shift fork (36), and the other end is installed with a tension pulley (38), the driving pulley (33) is installed on the first rotating shaft (7), and the driven pulley (34) is installed on the wire On the bar (26), the tension pulley (38) selectively cooperates with the driving pulley (33) and the driven pulley (34) to tension the drive belt (35). 4. The surgical trolley for conveniently transferring patients according to claim 1, characterized in that, when the frame (1) is in a horizontal state, the bottom end of the load-bearing wheels (10) is lower than the auxiliary wheels (15) bottom end. 5. A surgical trolley for conveniently transferring patients according to claim 1, characterized in that, one end of the support wheel (14) facing the auxiliary wheel support leg (5) is fixed with the auxiliary wheel support leg (5) A matching pin (39), the auxiliary wheel support leg (5) is fixed with a fixed pin (40) corresponding to the pin (39), and a pin (40) is connected between the pin (39) and the pin (40). Stage clip (41). 6 . The surgical trolley for conveniently transferring patients according to claim 1 , characterized in that, a rotating handle ( 42 ) is fixed at the end of the supporting wheel ( 14 ) facing away from the supporting leg ( 5 ) of the auxiliary wheel. 6 . 7. The surgical trolley for conveniently transferring patients according to claim 1, characterized in that the axis of the pin shaft (29) and the third rotating shaft (20) are coaxial. 8. A surgical trolley for conveniently transferring patients according to claim 1, characterized in that, the supporting wheel (14) is a cam, and the diameter of the distal hub of the supporting wheel (14) is larger than that of the auxiliary wheel (15) The diameter near the hub of the support wheel (14) is smaller than the diameter of the auxiliary wheel (15), and the support wheel (14) can rotatably replace the load-bearing wheel (10) and the auxiliary wheel (15) for support. 9. A surgical trolley for conveniently transferring patients according to claim 1, characterized in that, the inner wall of the sleeve (9) is provided with an annular groove (43) for limiting the position of the second bearing (8), so The second bearing (8) is fixedly clamped in the annular groove (43), and the shaft for limiting the position of the second bearing (8) is fixed on the first rotating shaft (7) and on both sides of the sleeve (9). Retaining ring (44).