CN219847180U

CN219847180U - Self-locking controllable supporting structure

Info

Publication number: CN219847180U
Application number: CN202320492293.4U
Authority: CN
Inventors: 应挺
Original assignee: Ningbo Deyi Machinery Electric Equipment Co ltd
Current assignee: Ningbo Deyi Machinery Electric Equipment Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-10-20
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses a self-locking controllable supporting structure, which comprises a mounting frame, wherein the mounting frame is slidably connected with a movable part, a self-locking assembly is arranged on the mounting frame, the self-locking assembly comprises a moving block which is slidably connected with the mounting frame, an elastic part is arranged between the moving block and the mounting frame, a through hole is arranged between the moving block and the movable part on the mounting frame, a ball is arranged in the through hole, at least one limiting groove for the ball to be inserted into to limit the sliding of the movable part is arranged on the peripheral wall of a supporting shaft along the sliding direction, the moving block comprises a blocking part and an avoiding part, the blocking part is used for blocking the ball in the limiting groove to realize the blocking of the ball and the inserting card of the limiting groove, and the avoiding part is used for allowing the ball to be inserted into to realize the unlocking and the separating of the ball and the limiting groove. The movable part can freely lift and can be locked at different height positions through the self-locking mechanism.

Description

Self-locking controllable supporting structure

Technical Field

The utility model relates to the technical field of rehabilitation appliances, in particular to a self-locking controllable supporting structure.

Background

Bedsores, also known as pressure sores and pressure ulcers, are characterized by damage, ulcers and even necrosis of skin and subcutaneous tissue due to the long-term influence of pressure on the local skin of the body on blood circulation, and are well developed in the pressed bone protruding parts. Bedsores are a common disease, especially in patients who are bedridden and physically weak, and are often found in the areas of pressed bony prominences, such as sacral coccyx, ischial tuberosities, thighbone tuberosities, lateral malleolus and heel.

The bedsores are caused by the fact that body pressure is concentrated on skin tissue in contact with the bed surface, and therefore, by changing the body position, the body pressure is prevented from being concentrated on specific skin tissue, and by dispersing the body pressure, the occurrence of bedsores can be prevented. However, it is difficult for a long-term bedridden patient and a bedridden elderly to spontaneously perform movements due to chronic diseases such as cerebral apoplexy and diabetes, and dyskinesia, and thus it is difficult to perform posture change. In addition, for these highly risky nursing persons, the task of changing the posture once every prescribed time with the 24-hour regime with the assistance of the nursing person is a heavy task.

Therefore, a novel nursing bed is needed in the market, and the pressing unit of the novel nursing bed can be locally or independently controlled to move up and down, so that local skin tissues are prevented from being contacted with the surface of the bed for a long time, the pressing unit can be separated from the skin tissues without changing the body position, and bedsores are prevented.

Disclosure of Invention

The utility model aims to solve the defects of the technology, and discloses a self-locking controllable supporting structure for a nursing bed, which enables a pressing unit to be adjusted in an up-and-down moving way.

The utility model designs a self-locking controllable supporting structure which comprises a mounting frame, wherein the mounting frame is connected with a movable part in a sliding manner, a self-locking assembly is arranged on the mounting frame, the self-locking assembly comprises a moving block which is connected with the mounting frame in a sliding manner, an elastic part is arranged between the moving block and the mounting frame, a through hole is arranged between the moving block and the movable part on the mounting frame, a ball is arranged in the through hole, at least one limit groove for the ball to be inserted to limit the sliding of the movable part is arranged on the peripheral wall of the movable part along the sliding direction, the moving block comprises a blocking part and an avoiding part, the blocking part is used for blocking the ball in the limit groove to realize the locking of the ball and the plug lock of the limit groove, and the avoiding part is used for allowing the ball to be inserted to realize the unlocking separation of the ball and the limit groove.

The utility model has the technical effects that when the movable piece moves up and down along the mounting frame, the self-locking component can lock the movable piece at different up and down positions, when a plurality of supporting structures are distributed on the nursing bed, the independent or partial supporting structures can be controlled, so that the pressing pad on the nursing bed is at different heights, thereby avoiding the contact between a human body and the pressing pad for a long time, and effectively preventing bedsores even if the human body does not change the body position or the nursing bed is not assisted by a carer, and being very flexible and free.

Further preferably, the movable piece comprises a sleeve and a supporting shaft, the sleeve is connected to the mounting frame in a sliding mode, the supporting shaft is connected to the sleeve in an axial sliding mode, a buffer spring is arranged between the sleeve and the supporting shaft, the limiting groove is located on the outer peripheral wall of the supporting shaft, elastic lifting between the sleeve and the supporting shaft is achieved, and elastic lifting between the sleeve and the supporting shaft is achieved.

Further optimizing, be equipped with self-lubricating guiding bearing between mounting bracket and the sleeve pipe, coefficient of friction when reducing the sleeve pipe slip, its wearability is better for the sleeve pipe slip is more smooth and easy, and life is longer.

Preferably, a spring seat is arranged in the sleeve, one end of the buffer spring is propped against the top of the sleeve, the other end of the buffer spring is propped against the top end of the spring seat, the top end of the supporting shaft is connected to the bottom end of the spring seat, friction between the buffer spring and the supporting shaft is avoided, the buffer spring stretches out and draws back to a certain extent, a limiting guide effect is achieved on the buffer spring, stable operation of the buffer spring is guaranteed, a fixing seat is arranged at the bottom of the sleeve, a tension spring is arranged between the fixing seat and the mounting frame and along the sliding direction of the sleeve, after the self-locking assembly is released, the sleeve naturally descends together with the supporting shaft, and meanwhile the tension spring pulls the sleeve and the supporting shaft, so that the sleeve and the supporting shaft are accelerated to descend to the limit position.

Further preferably, the mounting frame comprises a base, a first guide hole for guiding the supporting shaft to slide and a second guide hole for guiding the moving block to slide are formed in the base, the elastic piece is located in the second guide hole, one end of the elastic piece is propped against the inner wall of the second guide hole, the other end of the elastic piece is propped against the top end of the moving block, the through hole is located in the base, one end of the through hole is communicated with the first guide hole, and the supporting shaft and the moving block are integrated on the base, so that the mounting frame is convenient to assemble, disassemble and maintain.

Preferably, the length dimension of the through hole is smaller than the diameter dimension of the ball, so that the moving distance of the ball in the through hole is reduced, the ball is more easy to lock and release, and the diameter of the stopping part is larger than that of the avoiding part.

Further optimizing, the sleeve pipe top is equipped with presses the subassembly, press the subassembly including being fixed in the universal connecting piece at sleeve pipe top, with universal connecting piece swing joint's support piece and install the pad of pressing on the support piece, realize pressing the universal rotation of pad to the cooperation buffer spring makes and presses pad elasticity sufficient, in order to improve the comfort level of pressing the pad.

Preferably, when the sleeve number is a plurality of, the sleeve is uniformly distributed on the mounting frame, the supporting shaft, the self-locking assembly and the pressing assembly are in one-to-one correspondence with the sleeve, so that the pressing pad can be controlled independently or locally, and the effect that the local pressing pad contacts with a human body can be better.

Preferably, the lifting cross rod extends to the position right below each moving block and is abutted against the bottom end of each moving block, and the plurality of moving blocks can be lifted at the same time through the lifting cross rod, so that the plurality of self-locking assemblies can be locked or unlocked at the same time.

Preferably, the base is provided with a plurality of limiting parts along the length direction of the lifting cross rod at intervals, each limiting part is provided with a lifting hole for the lifting cross rod to pass through, and the lifting cross rod in a given position is arranged horizontally, so that the lifting cross rod can be limited in lifting path, and the lifting cross rod cannot deviate greatly when moving horizontally up and down.

Drawings

FIG. 1 is a general block diagram of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a block diagram of the present utility model in various combinations.

In the figure: 100. a mounting frame; 101. a sleeve; 102. a support shaft; 103. a buffer spring; 104. a moving block; 105. an elastic member; 106. a through hole; 107. a ball; 108. a limit groove; 109. a stopper; 110. an avoidance unit; 111. self-lubricating guide bearings; 112. a spring seat; 113. a fixing seat; 114. a tension spring; 115. a base; 116. a first guide hole; 117. a second guide hole; 118. a universal connection; 119. a support; 120. a pressing pad; 121. lifting the cross bar; 122. a limiting piece; 123. lifting holes; 124. and a protective sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

In this embodiment, as shown in fig. 1 and 2, it includes a mounting frame 100, a movable member is disposed on the mounting frame 100, the movable member includes a sleeve 101 and a supporting shaft 102, a hole is opened on the mounting frame 100, the sleeve 101 is vertically disposed in the hole and can slide axially along the hole, a pressing pad 120 is disposed at the top of the sleeve 101, a supporting shaft 102 is connected to the bottom of the sleeve, the supporting shaft 102 is sleeved in the sleeve 101 and can slide axially along the sleeve 101, a buffer spring 103 is disposed between the sleeve 101 and the supporting shaft 102, one end of the buffer spring 103 is disposed in the sleeve 101 and abuts against the top end of the sleeve 101, the other end of the buffer spring abuts against the top end of the supporting shaft 102, a spring seat 112 is disposed between the sleeve 101 and the supporting shaft 102 in the sleeve 101, the top end of the spring seat 112 abuts against the buffer spring 103, the bottom end of the spring seat 112 is connected with the supporting shaft 102, the supporting shaft 102 is driven to rise by the supporting shaft 102, the spring seat 112 is driven to compress by the spring seat 103, the sleeve 101 drives the sleeve 101 to rise by the pressing pad 120, and the pressing pad 120 is driven by the spring. The top end of the supporting shaft 102 is provided with a connecting hole, a fastener is fixed in the connecting hole, and the spring seat 112 is connected with the top end of the supporting shaft 102 through the fastener, so that the detachable connection between the supporting shaft 102 and the sleeve 101 is realized.

The mounting frame 100 is provided with a self-locking assembly, the self-locking assembly comprises a moving block 104, the moving block 104 is connected with the mounting frame 100 in a sliding manner, the moving block 104 is similar to a small-sized shaft structure, the moving block is mounted on the mounting frame 100 close to the bottom of the supporting shaft 102, a hole is formed in the mounting frame 100, the moving block 104 is mounted in the hole, an elastic piece 105 is arranged between the moving block 104 and the mounting frame 100, one end of the elastic piece 105 is propped against the inner wall of the hole, the other end of the elastic piece 105 is propped against the bottom of the moving block 104, the moving block 104 can reciprocate along the hole, and the top end of the moving block 104 faces downwards and stretches out of the hole.

As shown in fig. 3, a through hole 106 is arranged between a moving block 104 and a supporting shaft 102 on a mounting frame 100, two ends of the through hole 106 are respectively communicated with holes of the moving block 104 and the supporting shaft 102, a movable ball 107 is installed in the through hole 106, the length dimension of the through hole 106 is smaller than the diameter dimension of the ball 107, a limit groove 108 is formed in the peripheral wall of the supporting shaft 102 and is positioned at the through hole 106, the limit groove 108 can be used for inserting the ball 107 so as to lock the supporting shaft 102, the supporting shaft 102 is limited to lift, the moving block 104 is positioned at the other end of the through hole 106, the moving block 104 comprises a blocking part 109 and an avoiding part 110, the blocking part 109 and the avoiding part 110 are arranged on the outer wall of the moving block 104 along the sliding direction of the moving block 104, the diameter of the blocking part 109 is larger than that of the avoiding part 110, in this embodiment, the periphery of the moving block 104 is outwards protruded to form a blocking part 109, the periphery of the blocking part 109 is inwards recessed, the inwards recessed part 110 is formed along with the lifting of the moving block 104, when the moving block 104 moves to the blocking part 109 to align with the ball 107, the blocking part 109 slowly pushes the ball 107 to move towards the supporting shaft 102, and the limit groove 102 is formed by the limit groove 102; when the moving block 104 moves to the avoiding portion 110 to align with the balls 107, the supporting shaft 102 is lifted up by a small extent under the driving of an external force, so that looseness is generated between the limiting groove 108 of the supporting shaft 102 and the balls 107, the supporting shaft 102 continues to lift up, the limiting groove 108 is driven to be staggered with the balls 107, the outer peripheral wall of the supporting shaft 102 pushes the balls 107 to move towards the moving block 104, the balls 107 retract into the avoiding portion 110, and finally the balls 107 are separated from the limiting groove 108, so that the supporting shaft 102 is unlocked.

In this embodiment, the number of the limiting grooves 108 is two, and the limiting grooves are vertically arranged along the sliding direction, so that the supporting shaft 102 can realize locking of two gears, namely, locking after the pressing pad 120 rises and falls.

In another embodiment, the mounting frame 100 includes a base 115, the base 115 is detachably connected to the mounting frame 100, a first guide hole 116 and a second guide hole 117 are formed in the base 115, the through hole 106 is located in the base 115, one end of the through hole 106 is communicated with the first guide hole 116, the top of the supporting shaft 102 is sleeved with the sleeve 101, the bottom of the supporting shaft passes through the first guide hole 116 and slides up and down along the first guide hole 116, the moving block 104 is installed in the second guide hole 117 from bottom to top, the elastic member 105 is located in the second guide hole 117, one end of the elastic member 105 abuts against the inner wall of the second guide hole 117, the other end abuts against the top end of the moving block 104, the top end of the moving block 104 extends out of the bottom end of the second guide hole 117, so that the external force drives the moving block 104, the moving block 104 is lifted in the second guide hole 117, the external force is removed, the moving block 104 is always in a naturally lowered position under the action of the elastic member 105, and when the moving block 104 is in the lowered position, the blocking portion 109 faces one end of the through hole 106, so that the blocking portion 109 is restrained in the through hole 106, and the ball 107 is only blocked in the through hole 106, when the external force drives the moving block 104, the moving block 109 moves, and the blocking portion 109 is separated from the through hole 106. The elastic member 105 employs a spring.

In another embodiment, the limiting groove 108 is arc-shaped, so that the balls 107 are slowly separated along the limiting groove 108 when the supporting shaft 102 is lifted, and the balls 107 are not blocked with the limiting groove 108.

In another embodiment, a self-lubricating guide bearing 111 is sleeved between the mounting frame 100 and the sleeve 101, so that the sleeve 101 is smooth and cannot be worn during sliding.

In another embodiment, a fixed seat 113 is detachably mounted at the bottom of the sleeve 101, the fixed seat 113 moves along with the sleeve 101, tension springs 114 are arranged between the fixed seat 113 and the mounting frame 100 along the sliding direction of the sleeve 101, and the number of the tension springs 114 is two and is respectively located at two sides of the fixed seat 113.

In another embodiment, the top of the sleeve 101 is provided with a pressing component, the pressing component comprises a universal connecting piece 118 and a supporting piece 119, the fixed end of the universal connecting piece 118 is fixed on the top of the sleeve 101, a spherical groove is formed in the center of the supporting piece 119, the spherical moving end of the universal connecting piece 118 is matched with the spherical groove, the supporting piece 119 can freely rotate along the top of the sleeve 101, a plurality of holes are annularly distributed in the supporting piece 119 by taking the spherical groove as the center, and a pressing pad 120 is installed in each hole, so that a complete pressing head is formed.

In another embodiment, as shown in fig. 4, when the number of the sleeves 101 is plural, the sleeves are generally uniformly distributed on the mounting frame 100, and the supporting shafts 102, the self-locking assemblies and the pressing assemblies are in one-to-one correspondence with the sleeves 101, so as to form a plurality of free combinations of supporting mechanisms.

In another embodiment, the device further comprises a lifting cross rod 121, wherein the lifting cross rod 121 is horizontally arranged below the moving blocks 104, when the number of the supporting mechanisms is multiple, the lifting cross rod 121 extends to the position right below each moving block 104 and is abutted with the bottom end of the moving block 104, and the moving blocks 104 are lifted through the lifting cross rod 121 so as to realize synchronous upward movement of all the moving blocks 104.

In another embodiment, the base 115 is provided with a plurality of limiting members 122 along the length direction of the lifting rail 121, and each limiting member 122 is provided with a lifting hole 123 through which the lifting rail 121 passes.

In another embodiment, the lifting cross rod 121 is a straight rod, and the supporting mechanisms are horizontally and linearly arranged, that is, the sleeves 101 are linearly distributed on the mounting frame 100, each sleeve 101 corresponds to one supporting shaft 102 and one self-locking component, and the lifting cross rod 121 is horizontally placed at the bottom of the moving block 104.

In another embodiment, the sleeve 101 is externally sleeved with a protective sleeve 124 to prevent dust and protect the sleeve 124 from the outer wall of the sleeve 101.

The working principle is that under the normal state, the movable block 104 is acted by the elastic piece 105 and is in the descending state, at the moment, the stop part 109 of the movable block 104 is opposite to one end of the through hole 106 of the base 115 and is propped against the ball 107, the ball 107 is restrained in the through hole 106, the ball 107 is partially inserted into the limit groove 108 on the supporting shaft 102 towards the supporting shaft 102, and at the moment, the supporting shaft 102 is in the locking state; when the moving block 104 is driven by the lifting cross rod 121 to perform lifting action, the moving block 104 moves upwards, the blocking part 109 of the moving block 104 is staggered with the through hole 106, the avoiding part 110 of the moving block 104 is opposite to the through hole 106, so that the moving block 104 does not restrict the balls 107, namely, the supporting shaft is unlocked, the supporting shaft and the sleeve naturally descend, then the supporting shaft 102 is driven by external force to perform lifting action, looseness is generated between the balls 107 and the limiting grooves 108, the limiting grooves 108 are gradually staggered with the balls 107, the balls 107 move towards the avoiding grooves until the balls 107 are completely staggered with the limiting grooves 108, the supporting shaft 102 is in an unlocking state, the supporting shaft 102 can perform lifting action under the driving of external force, when the number of the limiting grooves 108 on the supporting shaft 102 is two, the supporting shaft 102 is unlocked from the first limiting groove 108 and then performs lifting action to the next limiting groove 108, and is locked at the limiting groove 108 by the self-locking assembly, and therefore different height position adjustment of the pressing pad 120 at the top of the sleeve 101 is realized.

The present utility model is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present utility model fall within the scope of the present utility model.

Claims

1. The utility model provides a self-locking controllable bearing structure, it includes mounting bracket (100), its characterized in that, mounting bracket (100) sliding connection has the moving part, be equipped with the auto-lock subassembly on mounting bracket (100), the auto-lock subassembly includes sliding connection in movable block (104) of mounting bracket (100), be equipped with elastic component (105) between movable block (104) and mounting bracket (100), be equipped with through-hole (106) between movable block (104) and moving part on mounting bracket (100), install ball (107) in through-hole (106), moving part peripheral wall is equipped with at least one along slip direction and supplies ball (107) to insert in order to restrict moving part gliding spacing groove (108), movable block (104) include stop portion (109) and dodge portion (110), stop portion (109) are used for stopping ball (107) in spacing groove (108) in order to realize ball (107) and spacing groove (108) insert the card lock and die, dodge portion (110) are used for supplying ball (107) to insert in order to realize ball (107) and spacing groove (108) unblock separation.

2. The self-locking controllable supporting structure according to claim 1, wherein the movable member comprises a sleeve (101) and a supporting shaft (102), the sleeve (101) is slidably connected to the mounting frame (100), the supporting shaft (102) is axially slidably connected to the sleeve (101), a buffer spring (103) is arranged between the sleeve (101) and the supporting shaft (102), and the limiting groove (108) is located on the peripheral wall of the supporting shaft (102).

3. The self-locking controllable support structure according to claim 2, characterized in that a self-lubricating guiding bearing (111) is arranged between the mounting frame (100) and the sleeve (101).

4. The self-locking controllable supporting structure according to claim 2, wherein a spring seat (112) is arranged in the sleeve (101), one end of the buffer spring (103) is propped against the top of the sleeve (101), the other end is propped against the top end of the spring seat (112), the top end of the supporting shaft (102) is connected to the bottom end of the spring seat (112), a fixing seat (113) is arranged at the bottom of the sleeve (101), and a tension spring (114) is arranged between the fixing seat (113) and the mounting frame (100) along the sliding direction of the sleeve (101).

5. The self-locking controllable supporting structure according to claim 1 or 4, wherein the mounting frame (100) comprises a base (115), a first guiding hole (116) for guiding the supporting shaft (102) to slide and a second guiding hole (117) for guiding the moving block (104) to slide are formed in the base (115), the elastic piece (105) is located in the second guiding hole (117), one end of the elastic piece (105) abuts against the inner wall of the second guiding hole (117), the other end of the elastic piece abuts against the top end of the moving block (104), and the through hole (106) is located in the base (115) and one end of the through hole is communicated with the first guiding hole (116).

6. The self-locking controllable support structure according to claim 5, wherein the through hole (106) has a length dimension smaller than the diameter dimension of the ball (107), and the stop portion (109) has a diameter larger than the relief portion (110).

7. The self-locking controllable supporting structure according to claim 2, wherein the top of the sleeve (101) is provided with a pressing assembly, and the pressing assembly comprises a universal connecting piece (118) fixed on the top of the sleeve (101), a supporting piece (119) movably connected with the universal connecting piece (118), and a pressing pad (120) mounted on the supporting piece (119).

8. The self-locking controllable supporting structure according to claim 7, wherein when the number of the sleeves (101) is a plurality, the sleeves are uniformly distributed on the mounting frame (100), and the supporting shafts (102), the self-locking assemblies and the pressing assemblies are in one-to-one correspondence with the sleeves (101).

9. The self-locking controllable support structure according to claim 5, further comprising a lifting cross bar (121), wherein the lifting cross bar (121) extends to a position right below each moving block (104) and abuts against the bottom end of the moving block (104), and the moving block (104) is lifted by the lifting cross bar (121) to realize the upward movement of the moving block (104).

10. The self-locking controllable supporting structure according to claim 9, wherein the base (115) is provided with a plurality of limiting pieces (122) at intervals along the length direction of the lifting cross rod (121), and each limiting piece (122) is provided with a lifting hole (123) for inserting the lifting cross rod (121).