CN114224634A

CN114224634A - a nursing bed

Info

Publication number: CN114224634A
Application number: CN202111669622.XA
Authority: CN
Inventors: 蔡悦恺
Original assignee: Jiangsu Saikang Medical Equipment Co ltd
Current assignee: Jiangsu Saikang Medical Equipment Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-25

Abstract

The invention discloses a nursing bed, which comprises a bed body and a two-walking mechanism, wherein the bed body is provided with a headboard and a footboard; the headboard is provided with a double-pivot suspension arm extending to the upper part of the support plate body; the walking mechanism at the same end of the headboard is provided with an anti-collision mechanism, and the other walking mechanism is provided with a lifter; a connecting rod type lifting driving mechanism is arranged between the bed body and the two walking mechanisms. The size of the bed body is adjusted through the bed body size expanding device, so that the requirements of patients with different body types are met; the structural strength and the use stability are ensured by the double-pivot suspension arm; the double-pivot suspension arm is arranged on the headboard, so that the anti-collision mechanism can be used for anti-collision and safety protection in the moving process of the nursing bed; the bed tail end is jacked through the jacking device, so that the nursing bed is fixed at the bed tail end after being moved, and the use convenience is high.

Description

Nursing bed

Technical Field

The invention belongs to the technical field of hospital beds, and particularly relates to a nursing bed.

Background

At present, the nursing bed required in the medical industry has complex structure, high cost and heavy weight due to the requirement of multiple functions, and simultaneously, the nursing bed has the following defects:

1. the nursing bed is moved by moving wheels, and the nursing bed is fixed after being moved by a brake function on the moving wheels, at present, the nursing bed is only provided with the brake function on the moving wheels at the head end of the bed, and when the guardrail bed is moved, the tail end of the bed is often operated, so the nursing bed needs to be wound to the head end of the bed for brake operation, and the operation convenience is poor;

2. the suspension arm used on the nursing bed is one of components for supporting fractured arms or legs, and at present, the suspension arm is a rod-type suspension arm fixedly arranged on the nursing bed, so that the structural strength is poor, the suspension arm is easy to shake and have poor stability when in use, and the potential safety hazard is large;

3. the bed body of the nursing bed is provided with anti-collision wheels (particularly arranged at the head end and the tail end of the bed body) to play roles of anti-collision and safety protection in the moving process of the nursing bed, and at present, along with the functional diversity and improvement of the nursing bed, the anti-collision wheels can not meet the requirements of corresponding anti-collision and safety protection;

4. the width of the bed board on the nursing bed is fixed, only a fixed mattress can be used, and the nursing bed with the same width is used due to different body types of patients, so that the use comfort is poor, and certain use safety hazards exist.

Disclosure of Invention

The invention provides a nursing bed, which aims to achieve the purposes of simplifying the structure, having an anti-collision function, facilitating the fixed operation of the nursing bed at the tail end of the bed, having stable suspension arm support and safe use and being capable of adjusting the size of the bed body.

In order to solve the technical problems, the technical scheme of the invention is as follows: a nursing bed comprises a bed body provided with a headboard and a footboard and two groups of travelling mechanisms positioned below the bed body, wherein the bed body is provided with a plurality of supporting plate bodies which are connected together and are respectively driven by power elements, and two sides of each supporting plate body are provided with bed body size expanding devices;

the double-pivot suspension arm is arranged on the headboard and extends to the position above the support plate body positioned at the downstream of the headboard;

the travelling mechanism at the same end of the headboard is provided with an anti-collision mechanism, and the other travelling mechanism is provided with a lifter;

and a connecting rod type lifting driving mechanism is arranged between the bed body and the two travelling mechanisms.

As an improvement, the bed body size expanding device comprises an installation sleeve arranged on the supporting plate body, a clamping adjusting mechanism which is matched with the installation sleeve in a clamping mode is installed in the installation sleeve in a sliding mode, the end portion of the clamping adjusting mechanism protrudes out of the side edge of the supporting plate body in the width direction and is provided with an expanding side plate, an adjusting and controlling mechanism is arranged in the clamping adjusting mechanism, and the adjusting and controlling mechanism protrudes out of the side edge of the expanding side plate.

As a further improvement, the clamping adjusting mechanism comprises a sliding sleeve which is slidably mounted in the mounting sleeve and is provided with the expansion side plate, and a clamping block is arranged at the end part of the sliding sleeve in the mounting sleeve; a plurality of clamping holes matched with the clamping blocks are formed in the length direction of the mounting sleeve;

and a wedge-shaped elastic reset mechanism used for realizing clamping or separation of the clamping block and the mounting sleeve is arranged between the clamping block and the adjusting control mechanism.

As a further improvement, the wedge-shaped elastic resetting mechanism comprises an installation seat which is positioned in the installation sleeve and arranged at the end part of the sliding sleeve, wherein the installation seat is internally provided with the vertically moving clamping block and a first elastic element which is abutted against the clamping block;

the fixture block is provided with a wedge-shaped groove, the mounting seat is provided with a wedge-shaped block which is matched with the wedge-shaped groove and transversely moves, the wedge-shaped block is sleeved with a second elastic element, and two ends of the second elastic element respectively abut against the mounting seat and the wedge-shaped block;

the adjusting and controlling mechanism comprises a control rod arranged in the sliding sleeve, one end of the control rod is connected with the wedge-shaped block, the other end of the control rod is provided with a control handle, and the control handle slides and extends to the outside of the expansion side plate.

As an improvement, the double-pivot suspension arm comprises two connecting blocks, wherein a positioning groove is formed in one side of the double-pivot suspension arm, the two connecting blocks are positioned, installed and matched with the headboard upper beam body through the positioning groove, inserting sleeves are arranged on the two connecting blocks, an inserting rod is inserted into each inserting sleeve, the middle parts of the two inserting rods extend in an inclined mode, the other ends of the two inserting rods are arranged close to each other, and a square supporting arm is clamped between the two inserting rods close to each other and connected together through a connecting element;

the support arm is bent and is extended to directly over the support plate body and be equipped with two spacing posts, be located directly over the support plate body be equipped with on the support arm be located two slide adjusting block between the spacing post, be equipped with rings on the slide adjusting block.

As a further improvement, a connecting sleeve is sleeved on the inserted rod, two symmetrically distributed convex blocks with a plane structure are arranged on the outer wall of the connecting sleeve, and the convex blocks are abutted against the supporting arms and connected through the connecting element;

l-shaped angle plates are fixedly mounted at the end parts of the two inserting rods, and the angle plates are connected with the supporting arms at the same time.

As an improvement, the connecting rod type lifting driving mechanism comprises first connecting rods hinged to two sides of the bed body and second connecting rods slidably mounted on two sides of the bed body, the other ends of the two second connecting rods are in rotating fit with wheel frame shafts on the travelling mechanism, the other ends of the two first connecting rods are respectively hinged to one second connecting rod, a connecting rod is arranged between the two first connecting rods, and a driving element is hinged between the connecting rod and the bed body;

the bed body is provided with a sliding plate with a sliding groove at a position corresponding to the sliding end of the second connecting rod, the second connecting rod is provided with a sliding seat positioned in the sliding groove, and the sliding seat is provided with balls.

As a further improvement, the lifter comprises connecting seats arranged on wheel carriers at two ends of the wheel carrier shaft, each connecting seat is provided with a vertically arranged supporting sleeve, each supporting sleeve is internally provided with an ejector rod which protrudes out of two ends of the supporting sleeve in an elastic limiting manner, each ejector rod is hinged with a first driving arm, each supporting sleeve is hinged with a second driving arm, the other end of each first driving arm is hinged with the second driving arm, and a pedal control rod is arranged between the two second driving arms;

the first driving arm is provided with a blocking rod which is used for blocking the second driving arm and is arranged in a protruding manner; the ejector rod is provided with a nylon foot pad.

As a further improvement, two ends of the support sleeve are provided with guide sleeves extending into the support sleeve, the thick part of the ejector rod is slidably mounted in the guide sleeve positioned below, and the thin part of the ejector rod is provided with a guide block matched with the guide sleeve positioned above;

and a check ring is arranged at the top of the guide sleeve positioned below the guide sleeve, and a third elastic element sleeved on the ejector rod is arranged between the check ring and the guide block.

As a further improvement, the anti-collision mechanism comprises two U-shaped clamping plates which are clamped and matched with the wheel frame shaft, each U-shaped clamping plate is provided with a sleeve, an anti-collision beam which is arranged to protrude out of the head end of the bed and is U-shaped is inserted into the two sleeves, and a support plate which is arranged to protrude out is arranged below the anti-collision beam close to the anti-collision end;

and the anti-collision beam matched with the sleeve, the U-shaped clamping plate and the sleeve are provided with inserting holes, and inserting connecting pieces are inserted into the inserting holes.

After the technical scheme is adopted, the invention has the effects that:

because the nursing bed comprises a bed body provided with a head plate and a tail plate and two groups of travelling mechanisms positioned below the bed body, a plurality of supporting plate bodies which are connected together and are respectively driven by power elements are arranged on the bed body, and two sides of each supporting plate body are respectively provided with a bed body size expanding device; the headboard is provided with a double-pivot suspension arm which extends to the upper part of a support plate body positioned at the downstream of the headboard; the walking mechanism at the same end of the headboard is provided with an anti-collision mechanism, and the other walking mechanism is provided with a lifter; the nursing bed is characterized in that a connecting rod type lifting driving mechanism is arranged between the bed body and the two walking mechanisms, and based on the structure, the nursing bed moves through the walking mechanisms when in use; the lifting of the bed body is realized through a connecting rod type lifting driving mechanism; the inclination of the supporting plate body is realized by driving the supporting plate body by a power element; the size of the bed body is adjusted through the bed body size expanding device so as to meet the requirements of patients with different body types, the use comfort is good, and the use potential safety hazard is reduced; the structural strength and the use stability are ensured by the double-pivot suspension arm; the bed head board is provided with the double-fulcrum suspension arm, so that the anti-collision mechanism arranged on the travelling mechanism plays roles of anti-collision and safety protection in the moving process of the nursing bed; the bed tail end is jacked through the jacking device, so that the nursing bed is fixed after moving, the nursing bed does not need to be wound to the bed head end for braking operation, and the operation convenience is improved; simultaneously, compare with the nursing bed of traditional structure, simplified and optimized the structure, reduced cost and dead weight, and the manifold performance of function satisfies patient's daily demand.

Because bed body size extension device is including setting up the installation cover on the supporting plate body, slidable mounting has the adjustment mechanism that clamps of clamping the complex with the installation cover in the installation cover, the tip that clamps adjustment mechanism protrudes the side of supporting plate body width direction, and be equipped with the extension sideboard, it is equipped with the regulation control mechanism in the adjustment mechanism to clamp, the side setting of the mechanism protrusion extension sideboard is controlled in the regulation, thereby in use, control the mechanism and come to adjust clamping the control of adjusting mechanism through adjusting, realize the regulation of extension sideboard and the fixed after the regulation through clamping the slide adjusting of adjustment mechanism in the installation cover and clamping, and then reach the extension regulation on the bed board body width direction, can use the mattress of different width, effectively satisfied different size patients' use travelling comfort demand, greatly reduced the potential safety hazard of using.

The clamping adjusting mechanism comprises a sliding sleeve which is arranged in the mounting sleeve in a sliding manner and is provided with an expansion side plate, and a clamping block is arranged at the end part of the sliding sleeve in the mounting sleeve; a plurality of clamping holes matched with the clamping blocks are formed in the length direction of the mounting sleeve; a wedge-shaped elastic reset mechanism for realizing clamping or separation of the clamping block and the mounting sleeve is arranged between the clamping block and the adjusting control mechanism, so that the adjustment and the adjusted fixation of the expansion side plate are realized through the sliding of the sliding sleeve in the mounting sleeve and the matching of the clamping block and the clamping hole; when the clamping block and the clamping hole are adjusted and matched, the wedge-shaped elastic resetting mechanism is operated through the adjusting and controlling mechanism, so that the clamping block and the clamping hole in the mounting sleeve are elastically reset and clamped or overcome the elastic tension force to be separated, the clamping and the separation of the matching effects in the adjusting process are realized, and the matching reliability is high.

The wedge-shaped elastic reset mechanism comprises an installation seat which is positioned in the installation sleeve and arranged at the end part of the sliding sleeve, a fixture block which moves vertically is arranged in the installation seat, and a first elastic element which is abutted against the fixture block is arranged in the installation seat; the clamping block is provided with a wedge-shaped groove, the mounting seat is provided with a wedge-shaped block which is matched with the wedge-shaped groove and moves transversely, the wedge-shaped block is sleeved with a second elastic element, two ends of the second elastic element are respectively abutted against the mounting seat and the wedge-shaped block, so that when the clamping position of the clamping block and the clamping hole is adjusted by the adjusting and controlling mechanism, the adjusting and controlling mechanism applies thrust on the wedge-shaped block, the wedge-shaped block overcomes the tension of the second elastic element and moves transversely, the clamping block overcomes the tension of the first elastic element and moves vertically in the transverse moving process through the matching of the wedge-shaped structure until the clamping block is separated from the clamping hole, then, the sliding sleeve slides in the mounting sleeve, the clamping block corresponds to the clamping hole to be matched, and then the clamping block and the wedge-shaped block are reset through the tension generated by the first elastic element and the second elastic element, so that the clamping and the clamping hole are matched, simple structure, convenient and quick adjustment.

Because adjust control mechanism including setting up the control lever in the sliding sleeve, the one end of control lever links to each other with the wedge, the other end is equipped with the control handle, and the control handle slides and extends to the outside of extension sideboard to when adjusting the width, exert thrust at operating handle, gliding operating handle can continue thrust to the control lever on the extension sideboard, afterwards, the control lever drives the wedge and carries out corresponding action, simple structure, convenient operation, laborsaving.

The double-pivot suspension arm comprises two connecting blocks, wherein one side of the double-pivot suspension arm is provided with a positioning groove, and the two connecting blocks are positioned, installed and matched with the headboard upper beam body through the positioning groove; the support arm is bent and extends to the position right above the support plate body and is provided with two limiting columns, a sliding adjusting block positioned between the two limiting columns is arranged on the support arm positioned right above the support plate body, and a lifting ring is arranged on the sliding adjusting block, so that in use, the connecting block can be conveniently installed on the headboard through the positioning groove, the double-pivot fixing of the insertion rod and the disassembly and assembly are realized through the matching of the insertion rod and the insertion sleeve, the support arm is fixed through the clamping of the two insertion rods on the support arm and the connection of a connecting element, and the adjustment of the use position of the lifting ring and the limiting during the adjustment are realized through the matching of the sliding adjusting block and the limiting columns, therefore, the double-pivot suspension arm has good support effect, good use stability and reliability and high structural strength, and the use safety is greatly improved; meanwhile, the position of the hanging ring can be adjusted, the requirements of different patients are effectively met, and in addition, the package is convenient.

The connecting sleeve is sleeved on the inserted rod, two symmetrically distributed convex blocks with a plane structure are arranged on the outer wall of the connecting sleeve, and the convex blocks are abutted against the supporting arm and are connected through the connecting element; l-shaped angle plates are fixedly mounted at the end parts of the two inserted rods and are connected with the supporting arms at the same time, so that the square supporting arms and the connecting elements are connected in a plane contact manner through the connecting sleeves with the plane-structure bumps, and then the supporting arms, the connecting sleeves and the inserted rods are connected together through the second fixed connecting pieces, so that the connection stability and the reliability are high; through the connection of the angle plate, the connection reliability and stability between the two inserted rods and the supporting arm are further improved.

The connecting rod type lifting driving mechanism comprises first connecting rods hinged to two sides of the bed body and second connecting rods slidably mounted on two sides of the bed body, the other ends of the two second connecting rods are in rotating fit with wheel frame shafts on the travelling mechanism, the other ends of the two first connecting rods are respectively hinged to one second connecting rod, a connecting rod is arranged between the two first connecting rods, and a driving element is hinged between the connecting rod and the bed body; be equipped with the slide that has the spout on the bed body of the position that corresponds with second connecting rod slip end, be equipped with the slide that is located the spout on the second connecting rod to when using, through the drive of drive element to the connecting rod, realize the swing of first connecting rod and second connecting rod and the slip of slide on the slide, and then realize the lifting work to the bed body, simple structure, the drive of lifting work is effectual, the use reliability is high.

Because be equipped with the ball on the slide to when the second connecting rod drove the slide and slide, come to carry out the point contact with the inner wall of slide through the ball, effectively avoided slide roughness high and when carrying out the face contact with the slide, cause mutual interference and influence the problem of normal slip work.

The lifting device comprises connecting seats arranged on wheel carriers at two ends of a wheel carrier shaft, each connecting seat is provided with a vertically arranged supporting sleeve, each supporting sleeve is internally provided with a top rod protruding out of two ends of the supporting sleeve in an elastic limiting manner, each top rod is hinged with a first driving arm, each supporting sleeve is hinged with a second driving arm, the other end of each first driving arm is hinged with the second driving arm, and a pedal control rod is arranged between the two second driving arms; the first driving arm is provided with a blocking rod which is used for blocking the second driving arm and is convexly arranged, so that when the nursing bed is moved at the tail end of the bed and needs to be fixed in use, the foot-operated control rod is pressed down and swung by feet, the foot-operated control rod drives the first driving arm and the second driving arm to simultaneously act, the first driving arm can synchronously drive the ejector rod to vertically move in the supporting sleeve until the jacking mechanism jacks up the tail end of the nursing bed and enables the walking mechanism to be separated from the ground, and then the fixing of the nursing bed in a non-moving state is completed, and in the operation, the blocking rod is used for limiting the swinging displacement of the foot-operated control rod; the pedal control rod is operated reversely to reset the ejector rod. In conclusion, adopt this jack, realized carrying out the fixed of jack-up formula to nursing bed tip, solved and need walk around the problem that the head of a bed end operated, promoted the convenience of operation and the convenience of use of nursing bed greatly.

The nylon foot pad is arranged on the ejector rod, so that the nylon foot pad is contacted with the ground, and the ejector rod is protected from abrasion; meanwhile, the worn nylon foot pad is easy to replace and low in cost.

Because the two ends of the supporting sleeve are provided with the guide sleeves extending into the supporting sleeve, the thick part of the ejector rod is arranged in the guide sleeve positioned below in a guiding and sliding way, and the thin part of the ejector rod is provided with the guide block matched with the guide sleeve positioned above; the top of the guide sleeve positioned below is provided with a check ring, a third elastic element sleeved on the ejector rod is arranged between the check ring and the guide block, so that the guide block and the guide sleeve can perform sliding guide in the vertical movement of the ejector rod, the elastic element convenient to install on the ejector rod through the guide block is arranged, the guide block is blocked by the check ring to limit the displacement of the ejector rod moving downwards, the reset of the ejector rod is realized through the tension of the third elastic element, the structure is simple, and the limiting and resetting effects of the downward movement of the ejector rod are good. .

The anti-collision mechanism comprises two U-shaped clamping plates which are clamped and matched with the wheel frame shaft, a sleeve is arranged on each U-shaped clamping plate, an anti-collision beam which is arranged at the end of the protruding lathe bed and is U-shaped is inserted into each sleeve, and a supporting plate which is arranged at the lower part of the anti-collision beam close to the anti-collision end in a protruding mode is arranged below each anti-collision beam; with sleeve pipe complex anticollision roof beam on, all be equipped with the cartridge hole on the U-shaped splint and the sleeve pipe, the downthehole cartridge of cartridge has plug connector, thereby at the in-process that the nursing bed removed, the anticollision roof beam through protrusion bed body tip comes with the contact of rammer, can make anticollision roof beam downswing simultaneously, afterwards, the tip jacking of the bed body is with the cooperation on backup pad and ground, and realize making the effect that the nursing bed stopped moving, anticollision and safety protection's effect has effectively been played, moreover, the steam generator is simple in structure, the dismouting convenience is high, it is effectual to anticollision, and can adjust the installation length of anticollision roof beam, the anticollision demand of different specification nursing beds has effectively been satisfied.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a schematic view of the bed size expanding device shown in FIG. 1;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a schematic structural view of the dual pivot boom of FIG. 1;

FIG. 6 is a schematic view of the structure of the dual-pivot boom of FIG. 1 engaged with a headboard;

FIG. 7 is an enlarged view of B in FIG. 6;

FIG. 8 is a schematic structural view of the crash prevention mechanism of FIG. 1;

FIG. 9 is a schematic view of the crash prevention mechanism in an applied state;

FIG. 10 is a schematic view of the construction of the riser of FIG. 1;

FIG. 11 is a schematic view of the support sleeve and the rod of FIG. 10;

FIG. 12 is a schematic diagram of the structure of FIG. 11 in an applied state;

FIG. 13 is a schematic view of the second link of FIG. 1 engaged with the slide plate;

wherein, 1-bed body; 101-a headboard; 102-a bed tail plate; 103-mounting the sleeve; 104-a cannula; 105-a beam body; 2-a traveling mechanism; 201-a wheel carrier shaft; 202-wheel carrier; 203-universal wheels; 3-a support plate body; 301-a power element; 4-bed body size expanding device; 400-a joystick; 401-mounting a sleeve; 402-expanding the edge plate; 403-sliding sleeve; 404-a fixture block; 405-card hole; 406-a mount; 407-a first elastic element; 408-a wedge-shaped groove; 409-wedge block; 410-a second elastic element; 411-a manipulation handle; 5-double-pivot suspension arm; 501-connecting blocks; 502-a plug-in sleeve; 503-inserting rod; 504-a support arm; 505-a connecting element; 506-a limit column; 507-sliding adjusting blocks; 508-hoisting ring; 509-connecting sleeve; 510-a planar structure; 511-bump; 512-corner panels; 6-an anti-collision mechanism; 601-U shaped splint; 602-a cannula; 603-an anti-collision beam; 604-a support plate; 605-plug-in holes; 606-a plug connection; 7-a jack; 700-stop lever; 701-a connecting seat; 702-a support sleeve; 703-ejector pin; 704-a first drive arm; 705-a second drive arm; 706-foot lever; 707-nylon foot pads; 708-a guide sleeve; 709-a guide block; 710-a retaining ring; 711-a third elastic element; 8-connecting rod type lifting driving mechanism; 801-a first link; 802-a second link; 803-connecting rod; 804 — a drive element; 805-a skateboard; 806-a slide; 807-balls.

Detailed Description

The present invention is described in further detail below with reference to specific examples.

As shown in fig. 1 and fig. 2, a nursing bed comprises a bed body 1 provided with a headboard 101 and a footboard 102, and two sets of walking mechanisms 2 located below the bed body 1, wherein the bed body 1 is provided with a plurality of supporting plate bodies 3 (including a back plate, a calf plate, a thigh plate and the like) which are connected together and respectively driven by power elements 301 (such as linear motors, oil cylinders and other linear driving members), so that the back plate, the calf plate, the thigh plate and the like can be lifted and lowered by the driving of the power elements 301 when in use, and both sides of each supporting plate body 3 are provided with bed body size expanding devices 4; a double-pivot suspension arm 5 is arranged on the headboard 101, and the double-pivot suspension arm 5 extends to the upper part of the support plate body 3 positioned at the downstream of the headboard 101; the travelling mechanism 2 at the same end with the headboard 101 is provided with an anti-collision mechanism 6, and the other travelling mechanism 2 is provided with a lifter 7; a connecting rod type lifting driving mechanism 8 is arranged between the bed body 1 and the two walking mechanisms 2; in this embodiment, the traveling mechanism 2 includes a wheel frame shaft 201, wheel frames 202 are disposed at two ends of the wheel frame shaft 201, and at least two universal wheels 203 are disposed on the wheel frames 202.

As shown in fig. 1 to 4, the bed body size expansion device 4 includes an installation sleeve 401 disposed on the support plate 3 and parallel to the width direction of the bed body 1, a clamping adjustment mechanism clamped and fitted with the installation sleeve 401 is slidably mounted in the installation sleeve 401, an end of the clamping adjustment mechanism protrudes out of a side edge of the support plate 401 and is provided with an expansion side plate 402, an adjustment control mechanism is disposed in the clamping adjustment mechanism, and the adjustment control mechanism protrudes out of a side edge of the expansion side plate 402.

The clamping adjusting mechanism comprises a sliding sleeve 403 which is slidably arranged in an installation sleeve 401 and is provided with an expansion side plate 402, and a clamping block 404 is arranged at the end part of the sliding sleeve 403 positioned in the installation sleeve 401; a plurality of clamping holes 405 matched with the clamping blocks 404 are formed in the length direction of the mounting sleeve 401; a wedge-shaped elastic reset mechanism for realizing clamping or separation of the fixture block 404 and the mounting sleeve 401 is arranged between the fixture block 404 and the adjusting control mechanism; the wedge-shaped elastic reset mechanism comprises an installation seat 406 which is positioned in the installation sleeve 401 and arranged at the end part of the sliding sleeve 403, a clamping block 404 which moves vertically is arranged in the installation seat 406, and a first elastic element 407 (such as a spring and the like) which is abutted against the clamping block 404 is arranged in the installation seat 406; the fixture block 404 is provided with a wedge-shaped groove 408, the mounting seat 406 is provided with a wedge-shaped block 409 which is matched with the wedge-shaped groove 408 and moves transversely, the wedge-shaped block 409 is sleeved with a second elastic element 410 (such as a spring, etc.), and two ends of the second elastic element 410 are respectively abutted against the mounting seat 406 and the wedge-shaped block 409; the adjusting and controlling mechanism comprises a controlling rod 400 arranged in a sliding sleeve 403, one end of the controlling rod 400 is connected with a wedge block 409, the other end is provided with a controlling handle 411, and the controlling handle 411 extends to the outside of the expanding side plate 402 in a sliding manner.

In this scheme, the distance between this headboard 101 and tailstock board 102 and the end of bed 1 also can be adjusted, specifically is: the bed body 1 is provided with a mounting sleeve 103 which is parallel to the length direction of the bed body 1 and extends towards the end direction of the bed body 1, a sleeve 104 arranged on a headboard 101 or a footboard 102 is inserted into the mounting sleeve 103, the sleeve 104 is provided with a plurality of adjusting insertion holes (not shown in the form of reference numbers) arranged along the length direction of the sleeve 104, and inserting pieces such as pin shafts and the like penetrating through the mounting sleeve 103 and the sleeve 104 are inserted into the adjusting insertion holes.

As shown in fig. 1, 2, 5 to 7, the dual-pivot arm 5 includes two connecting blocks 501, one side of which is provided with a positioning groove (not shown by a reference numeral) and is positioned, installed and matched with the upper beam body 105 of the headboard 101 through the positioning groove, the two connecting blocks 501 are both provided with vertically arranged inserting sleeves 502, each inserting sleeve 502 is inserted with an inserting rod 503, the middle parts of the two inserting rods 503 extend obliquely, the other ends of the two inserting rods 503 are arranged close to each other, a square supporting arm 504 is clamped between the two inserting rods 503 close to each other and connected together through a connecting element 505 (such as a combined connecting structure of a bolt and a nut); the supporting arm 504 is bent to extend to the position right above the supporting plate body 3 and is provided with two limiting columns 506, a sliding adjusting block 507 located between the two limiting columns 506 is arranged on the supporting arm 504 located right above the supporting plate body 3, and a hanging ring 508 is arranged on the sliding adjusting block 507.

A connecting sleeve 509 is sleeved on the inserting rod 503, two symmetrically distributed convex blocks 511 with a plane structure 510 are arranged on the outer wall of the connecting sleeve 509, and the convex blocks 511 are abutted against the supporting arm 504 and connected through a connecting element 505; the ends of the two rods 503 are each fixedly mounted with an L-shaped angle plate 512, and the angle plate 512 is connected with the supporting arm 504.

As shown in fig. 1, fig. 2 and fig. 13, the link type lifting driving mechanism 8 includes a first link 801 hinged to two sides of the bed body 1 and a second link 802 slidably mounted on two sides of the bed body 1, the other ends of the two second links 802 are rotatably engaged with the wheel frame shaft 201 on the traveling mechanism 2, the other ends of the two first links 801 are respectively hinged to a second link 802, a connecting rod 803 is disposed between the two first links 801, and a driving element 804 (such as a linear driving element like a linear motor, an oil cylinder, etc.) is hinged between the connecting rod 803 and the bed body 1; a sliding plate 805 having a sliding slot (not shown in the figures) is disposed on the bed 1 corresponding to the sliding end of the second connecting rod 802, a sliding seat 806 disposed in the sliding slot is disposed on the second connecting rod 802, and a ball 807 is disposed on the sliding seat 806.

As shown in fig. 10 to 12, the lifter 7 includes connecting seats 701 disposed on the wheel frame 202 at two ends of the wheel frame shaft 201, each connecting seat 701 is provided with a vertically disposed supporting sleeve 702, each supporting sleeve 702 is internally provided with a top rod 703 protruding from two ends of the supporting sleeve 702 in an elastic limited manner, each top rod 703 is hinged with a first driving arm 704, each supporting sleeve 702 is hinged with a second driving arm 705, the other end of the first driving arm 704 is hinged with the second driving arm 705, and a foot-operated control rod 706 is disposed between the two second driving arms 705; a blocking rod 700 which is used for blocking the second driving arm 705 and is arranged on the first driving arm 704 in a protruding way; the bottom end of the top rod 703 is provided with a nylon foot pad 707.

The two ends of the supporting sleeve 702 are provided with guide sleeves 708 extending into the supporting sleeve 702, the push rod 703 is of a structure with one thick end and one thin end, the thick part of the push rod 703 is slidably mounted in the guide sleeve 708 positioned below, and the thin part of the push rod 703 is provided with a guide block 709 matched with the guide sleeve 708 positioned above; a retainer 710 is disposed at the top of the lower guide sleeve 708, and a third elastic element 711 (e.g., a spring) sleeved on the rod 703 is disposed between the retainer 710 and the guide block 709.

As shown in fig. 1, fig. 2, fig. 8 and fig. 9, the anti-collision mechanism 6 includes two U-shaped clamp plates 601 clamped and fitted with the wheel frame shaft 201, each U-shaped clamp plate 601 is provided with a sleeve 602, an anti-collision beam 603 protruding from the head end of the bed and having a U shape is inserted into each sleeve 602, and a support plate 604 protruding from the lower part of the anti-collision beam 603 near the anti-collision end is provided; inserting holes 605 are formed in the anti-collision beam 603, the U-shaped clamping plate 601 and the sleeve 602, which are matched with the sleeve 602, and inserting connectors 606 (such as pin shafts and the like) are inserted into the inserting holes 605.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a nursing bed, is including the bed body that is equipped with head board, footboard and being located two sets of running gear of bed body below, be equipped with a plurality of links together on the bed body, and carry out driven supporting plate body, its characterized in that by power element respectively: two sides of each supporting plate body are respectively provided with a bed body size expanding device;

2. A care bed as recited in claim 1, wherein: the bed body size extension device including set up in installation cover on the supporting plate body, slidable mounting in the installation cover with the installation cover clamps the complex adjustment mechanism that clamps, the tip that clamps adjustment mechanism protrudes the side of supporting plate body width direction and be equipped with the extension sideboard, it is equipped with the regulation and control mechanism to clamp in the adjustment mechanism, the regulation is controlled the mechanism protrusion the side setting of extension sideboard.

3. A care bed as recited in claim 2, wherein: the clamping adjusting mechanism comprises a sliding sleeve which is slidably arranged in the mounting sleeve and is provided with the expansion side plate, and a clamping block is arranged at the end part of the sliding sleeve in the mounting sleeve; a plurality of clamping holes matched with the clamping blocks are formed in the length direction of the mounting sleeve;

4. A care bed as recited in claim 3, wherein: the wedge-shaped elastic resetting mechanism comprises an installation seat which is positioned in the installation sleeve and arranged at the end part of the sliding sleeve, wherein the installation seat is internally provided with the vertically moving clamping block, and the installation seat is internally provided with a first elastic element which is abutted against the clamping block;

5. A care bed as recited in claim 1, wherein: the double-pivot suspension arm comprises two connecting blocks, wherein a positioning groove is formed in one side of the double-pivot suspension arm, the two connecting blocks are positioned, installed and matched with the headboard upper beam body through the positioning groove, inserting sleeves are arranged on the two connecting blocks, an inserting rod is inserted into each inserting sleeve, the middle parts of the two inserting rods extend in an inclined mode, the other ends of the two inserting rods are arranged close to each other, and a square supporting arm is clamped between the two inserting rods close to each other and connected together through a connecting element;

6. A care bed as recited in claim 5, wherein: the connecting sleeve is sleeved on the inserted rod, two symmetrically distributed convex blocks with a plane structure are arranged on the outer wall of the connecting sleeve, and the convex blocks are abutted against the supporting arm and are connected through the connecting element;

7. A care bed as recited in claim 1, wherein: the connecting rod type lifting driving mechanism comprises first connecting rods hinged to two sides of the bed body and second connecting rods slidably mounted on two sides of the bed body, the other ends of the two second connecting rods are in rotating fit with wheel frame shafts on the travelling mechanism, the other ends of the two first connecting rods are respectively hinged to one second connecting rod, a connecting rod is arranged between the two first connecting rods, and a driving element is hinged between the connecting rod and the bed body;

8. A care bed as recited in claim 7, wherein: the lifter comprises connecting seats arranged on wheel carriers at two ends of the wheel carrier shaft, each connecting seat is provided with a vertically arranged supporting sleeve, each supporting sleeve is internally provided with an ejector rod protruding out of two ends of the supporting sleeve in an elastic limiting manner, each ejector rod is hinged with a first driving arm, each supporting sleeve is hinged with a second driving arm, the other end of each first driving arm is hinged with the second driving arm, and a pedal control rod is arranged between the two second driving arms;

9. A care bed as recited in claim 8, wherein: the two ends of the supporting sleeve are provided with guide sleeves extending into the supporting sleeve, the thick part of the ejector rod is arranged in the guide sleeve positioned below in a guiding and sliding manner, and the thin part of the ejector rod is provided with a guide block matched with the guide sleeve positioned above;

10. A care bed as recited in claim 7, wherein: the anti-collision mechanism comprises two U-shaped clamping plates which are clamped and matched with the wheel frame shaft, a sleeve is arranged on each U-shaped clamping plate, a U-shaped anti-collision beam which is arranged in a protruding manner at the head end of the bed is inserted into each sleeve, and a supporting plate which is arranged in a protruding manner is arranged below the anti-collision beam close to the anti-collision end;