A new rotatable folding bedside handrail

Abstract

The utility model relates to medical auxiliary instrument technical field discloses a novel rotatable folding bedside handrail, the handrail includes the bottom's supporting plate sleeve, props foot subassembly and upper handrail subassembly, both are connected through adjusting assembly, and adjusting assembly includes first fixed plug and second fixed plug of relative rotation, and the inside is through spring drive toothed block bridging in both sides toothed groove and realizes rigid locking, through pressing the outside pressing block, can push toothed block axial movement and separate one side toothed groove, and the lock is removed and realizes handrail folding. The utility model discloses through built -in gear clutch structure and supplementary locating block design, solved the problem that the existing handrail cannot fold or fold instability, has the advantages of convenient operation, locking firm, and the height width adjustable, effectively promoted the use safety and space utilization.

Description

Technical Field

[0001] This utility model relates to the technical field of medical auxiliary devices and home care equipment, and in particular to a novel rotatable and foldable bedside handrail. Background Technology

[0002] Bedside handrails are increasingly used as an important tool to assist people with mobility impairments in getting in and out of bed and moving around in bed. Existing bedside handrails are usually fixed in structure, occupying space on the side of the bed for a long time after installation. This not only affects bed making and daily care, but also makes people prone to bumping into them when not in use.

[0003] While some products attempt to incorporate folding functionality, they often employ simple pin connections or basic buckles. These structures are prone to loosening and wear after prolonged stress, causing the handrails to wobble or even fold unexpectedly, posing a significant safety hazard. Furthermore, the folding operation of existing products is typically cumbersome, requiring both hands or even tools, making it extremely inconvenient for elderly people or patients with weaker limbs.

[0004] Therefore, this utility model proposes a novel rotatable and foldable bedside armrest to address the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a novel rotatable and foldable bedside armrest, which aims to improve the existing technology of bedside armrests, which have problems such as fixed structure that cannot be stored, resulting in large space occupation and easy to cause bumps, as well as the cumbersome operation and poor locking stability of existing folding mechanisms, resulting in low safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel rotatable and foldable bedside handrail, comprising a support sleeve, a support body, a support leg sleeve, a support leg body, a handrail sleeve, a handrail body, and an adjustment component;

[0007] The adjusting assembly has a special clutch locking structure, which includes a first fixed insert, a second fixed insert, a connecting rod, a toothed block, a spring, and a pressing block. The first fixed insert has a first toothed groove inside, the second fixed insert has a second toothed groove inside, and the toothed block has teeth that mesh with the toothed grooves.

[0008] Furthermore, the support plate sleeve is vertically fixed to the support foot sleeve, and the adjusting component is connected between the support foot sleeve and the armrest sleeve. The first fixing block and the second fixing block are rotatably connected by the connecting rod, the toothed block is slidably engaged between the first toothed groove and the second toothed groove, the spring abuts against the toothed block and the second fixing block, and the pressing block is slidably disposed in the slot of the first fixing block and abuts against the toothed block. This combination allows the armrest to achieve rigid locking through the bridging of the toothed block, and to unlock and fold by pushing the toothed block with the pressing block.

[0009] Preferably, the toothed block has a positioning groove inside, and the first fixing block has a positioning block inside. The positioning block cooperates with the positioning groove to provide additional anti-shear positioning in the locked state and automatically separates in the folded state.

[0010] Preferably, the inner side of the second fixing block is provided with a connecting sleeve, the connecting rod is disposed inside the connecting sleeve, and the spring is accommodated in the cavity formed by the connecting sleeve and the connecting rod, thereby protecting the spring and optimizing the internal space layout;

[0011] Preferably, the pressing block is configured to push the toothed block to squeeze the spring after being pressed, so that it completely disengages from the toothed groove inside the first fixing block, thereby releasing the rotation restriction;

[0012] Preferably, the armrest body has multiple adjustment holes, and the armrest sleeve has a spring clip inside. The spring clip cooperates with the adjustment holes to adjust the extension length of the armrest body to adapt to different bed widths.

[0013] Preferably, the support leg body has multiple adjustment holes, and the support leg sleeve has a spring block inside. The spring block cooperates with the adjustment holes to adjust the height of the support leg body off the ground.

[0014] Preferably, the bottom of the support leg body is provided with a rubber foot pad, which has an anti-slip texture to increase the friction with the ground and improve the overall support stability;

[0015] Preferably, the adjustment component is configured such that when the armrest body rotates back to a horizontal state and the pressing block is released, the spring resets and pushes the toothed block back into the toothed groove in the first fixing block, thereby achieving automatic locking.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem of existing bedside armrests being unable to fold or having an unstable folding structure by setting an adjustment component that includes toothed blocks, springs, and insert blocks. It achieves the technical effect of allowing the armrest to rotate and fold 180 degrees by pressing to unlock, and automatically resetting and rigidly locking after being released. This not only facilitates users getting in and out of bed and storage, but also ensures safety and stability during use.

[0018] 2. This utility model solves the problems of gap wobbling and shear force concentration that may exist if the tooth meshing is used alone by setting a positioning block and positioning groove between the first fixed insert block and the toothed block. It achieves the technical effect of enhancing the anti-shear ability in the locked state and further improving the stability and structural life of the handrail when it is horizontally supported.

[0019] 3. This utility model solves the problem that traditional armrests with fixed dimensions are difficult to adapt to different sizes of beds and user heights by setting spring buckles and adjustment holes in the armrest sleeve and support sleeve. It achieves the technical effect of flexibly adjusting the extension length and support height of the armrest, and widely adapting to beds of different widths and floors of different heights. Attached Figure Description

[0020] Figure 1 A perspective view of a novel rotatable and foldable bedside armrest proposed in this utility model;

[0021] Figure 2 This is a schematic diagram showing the folded state of a novel rotatable and foldable bedside armrest proposed in this utility model.

[0022] Figure 3 This is a schematic diagram showing the disassembled adjustment components of a novel rotatable and foldable bedside armrest proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the internal structure of the first fixing block of a novel rotatable and foldable bedside armrest proposed in this utility model.

[0024] Figure 5 This is a schematic diagram showing the separation of the main body of a novel rotatable and foldable bedside armrest proposed in this utility model.

[0025] Figure 6 This is a schematic diagram showing the disassembled support body of a novel rotatable and foldable bedside armrest proposed in this utility model.

[0026] Legend:

[0027] 1. Armrest sleeve; 2. Armrest body; 3. Adjustment component; 301. First fixing block; 302. Slot; 303. Pressing block; 304. Toothed groove; 305. Toothed block; 306. Positioning groove; 307. Positioning block; 308. Spring; 309. Second fixing block; 310. Connecting sleeve; 311. Connecting rod; 4. Support plate sleeve; 5. Support plate body; 6. Support foot sleeve; 7. Support foot body; 8. Rubber foot pad. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-6 The present invention provides an embodiment of a novel rotatable and foldable bedside armrest, comprising a support sleeve 4 and a support foot sleeve 6 which is vertically and fixedly connected to the support sleeve 4. The support sleeve 4 is used to connect and fix the entire armrest device to the bed structure, and the support foot sleeve 6 is used to provide vertical support to enhance the stability of the overall structure.

[0030] Furthermore, one end of the support sleeve 4 is fixedly connected to the support body 5. The support body 5 has a U-shaped tubular structure and is configured to press between the mattress and the bed board. The weight of the mattress is used to fix the bottom of the armrest. The support body 7 is slidably inserted into the inside of the support sleeve 6. The support body 7 can be extended and retracted relative to the support sleeve 6 to adapt to different ground heights, thereby ensuring the stability of the armrest when under force.

[0031] Meanwhile, the new type of rotatable and foldable bedside armrest also includes an armrest sleeve 1 and an armrest body 2 that is slidably inserted into the armrest sleeve 1. The armrest body 2, as the part that the user directly holds and leans on, can extend and slide relative to the armrest sleeve 1, thereby changing the lateral length of the armrest to adapt to beds of different widths.

[0032] An adjustment component 3 is provided between the tray sleeve 4 and the armrest sleeve 1. The lower end of the adjustment component 3 is fixedly connected to the support sleeve 6, and the upper end is fixedly connected to the armrest sleeve 1. As the core connecting mechanism, the adjustment component 3 not only connects the upper and lower parts, but more importantly, it provides a rotation and folding function as well as a rigid locking function in the unfolded state, so that the armrest body 2 can rotate around the axis of the adjustment component 3 to a folded state that fits the side of the bed or lock in an unfolded state for horizontal use.

[0033] The adjustment component 3 includes a first fixed plug 301, a second fixed plug 309, a connecting rod 311, a toothed block 305, a spring 308, and a pressing block 303. The lower end of the first fixed plug 301 is fixedly inserted into the inside of the support sleeve 6, thereby forming a stable connection with the base part. The upper end of the second fixed plug 309 is fixedly inserted into the bottom of the armrest sleeve 1, thereby driving the armrest part to move.

[0034] The first fixed insert 301 and the second fixed insert 309 are rotatably connected by a connecting rod 311. The connecting rod 311 serves as the rotation axis and passes through the two inserts, allowing the second fixed insert 309 to rotate relative to the first fixed insert 301. The first fixed insert 301 has a first toothed groove 304 inside, and the second fixed insert 309 has a second toothed groove 304 inside. These two toothed grooves 304 are aligned and connected when the armrest is unfolded and locked.

[0035] The toothed block 305 is slidably disposed between the first toothed groove 304 and the second toothed groove 304. The outer periphery of the toothed block 305 is provided with teeth that are adapted to the two toothed grooves 304. The toothed block 305 can slide back and forth along the axial direction of the connecting rod 311. When the toothed block 305 is simultaneously engaged in the first toothed groove 304 and the second toothed groove 304, the mechanical engagement of the teeth restricts the relative rotation between the first fixed plug 301 and the second fixed plug 309, thereby achieving rigid locking of the handrail.

[0036] Spring 308 abuts between toothed block 305 and second fixed plug 309. Specifically, spring 308 is in a compressed state, and its elastic restoring force always tends to push toothed block 305 toward first fixed plug 301, so as to keep toothed block 305 in the locked position across the two plugs in its natural state.

[0037] The side wall of the first fixed insert 301 is provided with a slot 302. The pressing block 303 is slidably installed in the slot 302. One end of the pressing block 303 extends to the outside of the first fixed insert 301 for the user to press. The other end passes through the slot 302 and directly abuts against the end face of the toothed block 305. The pressing block 303 is configured to push the toothed block 305 to move axially against the elastic force of the spring 308 when pressed by an external force, until the toothed block 305 slides completely into the toothed groove 304 inside the second fixed insert 309. At this time, the toothed block 305 disengages from the first fixed insert 301, thereby removing the restriction on the degree of rotational freedom and realizing the folding function.

[0038] In a preferred embodiment, to enhance the stability and guiding accuracy of the locking structure, a positioning groove 306 is provided inside the toothed block 305. A positioning block 307 is fixedly connected inside the first fixed insert 301 and located at the center of the first toothed groove 304. The positioning block 307 is adapted to be inserted into the positioning groove 306. When the adjusting component 3 is in the locked state, the positioning block 307 is engaged in the positioning groove 306 to play an auxiliary positioning and anti-shear role. When the adjusting component 3 is in the folded rotation state, the positioning block 307 disengages from the positioning groove 306 as the toothed block 305 rotates with the second fixed insert 309.

[0039] As another preferred embodiment, in order to protect the internal spring and optimize the spatial layout, a connecting sleeve 310 is also provided on the inner side of the second fixing block 309. One end of the connecting sleeve 310 is fixedly connected to the second fixing block 309. The connecting sleeve 310 is sleeved on the outer periphery of the connecting rod 311, and a receiving cavity is formed between the inner wall of the connecting sleeve 310 and the outer wall of the connecting rod 311. The spring 308 is received in the receiving cavity. This not only prevents the spring 308 from bending laterally during compression, but also avoids the spring being directly exposed to the outside.

[0040] In another preferred embodiment, in order to achieve flexible adjustment of the handrail length, the tube wall of the handrail body 2 is provided with a plurality of first adjustment holes spaced apart along the length direction, and the inside of the handrail sleeve 1 is provided with a first spring buckle. The first spring buckle passes through the side wall of the handrail sleeve 1 and is inserted into the first adjustment hole. By pressing the spring buckle and pulling the handrail body 2, the effective usable length of the handrail can be changed.

[0041] Similarly, in order to adapt to beds of different heights, the tube wall of the support body 7 is provided with multiple second adjustment holes spaced apart along the length direction, and the inside of the support sleeve 6 is provided with a second spring buckle. The second spring buckle passes through the side wall of the support sleeve 6 and is engaged in the second adjustment hole, thereby realizing the graded adjustment of the support height.

[0042] In addition, to increase the friction of the handrail's landing support and prevent scratching the ground, a rubber foot pad 8 is fixedly connected to the bottom of the support body 7. The bottom surface of the rubber foot pad 8 has anti-slip texture, and the diameter of the rubber foot pad 8 is larger than the diameter of the support body 7, thus providing a larger contact area. Finally, to ensure the stability of the rotating structure, the connecting rod 311 passes through the central through hole of the toothed block 305. The toothed block 305 slides back and forth along the axial direction of the connecting rod 311. The sliding direction of the pressing block 303 is parallel or collinear with the axial direction of the connecting rod 311, ensuring the directness and efficiency of force transmission.

[0043] Working principle: When placing this bedside armrest on the bedside, first press the support plate body 5 between the mattress and the bed board. The outer support plate sleeve 4 is vertically fixed to the support foot sleeve 6. The support foot body 7 nested inside the support foot sleeve 6 extends downward to the ground, and the rubber foot pad 8 at the bottom contacts the ground to enhance stability. At this time, the armrest body 2 is connected above the support plate sleeve 4 through the adjustment component 3. The side wall of the armrest body 2 is fitted with armrest sleeves 1 for the user to hold. When rotation and folding are required, press the control part of the adjustment component 3 to drive the armrest body 2 to rotate around the rotation axis of the adjustment component 3 towards the bedside, and finally make the armrest body 2 fit against the bed side to complete the folding. To unfold, operate in the opposite direction, and the adjustment component 3 will automatically lock, so that the armrest body 2 maintains a horizontal support state.

[0044] The adjustment component 3 operates as follows: the second fixing block 309 is engaged with the bottom of the armrest sleeve 1, and the connecting sleeve 310 inside it is provided with a connecting rod 311 for fixed connection with another second fixing block 309. The first fixing block 301 is engaged with the tray sleeve 4. Both the first fixing block 301 and the second fixing block 309 have toothed grooves 304 inside. Toothed blocks 305 are provided inside the toothed grooves 304 and engage with the toothed grooves 304. The toothed blocks 305 have positioning grooves 306 inside. A positioning block 307 is fixed inside the first fixing block 301 on one side and engages with the positioning groove 306. The compression spring 308 between the toothed blocks 305 and the second fixing block 309 achieves initial locking. When rotation and folding are required, press the pressing block 303 on one side of the first fixed insert 301, so that it slides in the slot 302 opened inside the first fixed insert 301 on one side, and pushes the toothed block 305 to squeeze the compression spring 308 and disengage from the toothed groove 304 inside the first fixed insert 301, and slides completely into the toothed groove 304 inside the second fixed insert 309. At the same time, the positioning block 307 exits the positioning groove 306. At this time, the armrest body 2 can rotate around the pivot of the second fixed insert 309 through the connecting rod 311. After rotating to 180 degrees, release the pressing block 303, the compression spring 308 returns to its original position, the toothed block 305 re-engages into the toothed groove 304 inside the first fixed insert 301, and the positioning block 307 is embedded in the positioning groove 306, completing the angle locking and realizing folding.

[0045] The armrest and support legs can be separated and adapted for different bed widths. When adjusting the armrest length, pull the armrest body 2 outwards to remove it from the armrest sleeve 1 or push it in. The spring clip inside the armrest sleeve 1 and the multiple adjustment holes on the armrest body 2 allow for adaptation to different bed widths. To adjust the support legs, pull the support leg body 7 downwards to remove it from the support leg sleeve 6. The spring clip inside the support leg sleeve 6 and the multiple adjustment holes on the support leg body 7 allow for adaptation to different bed heights. During use, the support leg body 7 remains vertical after being inserted into the support leg sleeve 6, and the rubber feet 8 at the bottom increase friction with the ground. Simultaneously, the support plate body 5, through the vertical fixation of the support plate sleeve 4 and the support leg sleeve 6, works in conjunction with the pressure of the mattress to form stable support, ensuring that the armrest body 2 does not wobble when held by the user.

Claims

1. A novel rotatable and foldable bedside armrest, comprising: Pallet sleeve (4), pallet body (5), support foot sleeve (6), support foot body (7), handrail sleeve (1), handrail body (2) and adjustment components (3); The support plate sleeve (4) is vertically fixed to the support foot sleeve (6), the support plate body (5) is pressed under the mattress, the support foot body (7) is inserted into the support foot sleeve (6), and the armrest body (2) is inserted into the armrest sleeve (1). The lower end of the adjustment component (3) is connected to the support sleeve (6), and the upper end is connected to the arm sleeve (1). Its characteristics are: The adjustment assembly (3) includes a first fixed plug (301), a second fixed plug (309), a connecting rod (311), a toothed block (305), a spring (308), and a pressing block (303); The first fixing block (301) is engaged with the support sleeve (6), and the second fixing block (309) is engaged with the bottom of the arm sleeve (1). The first fixing block (301) and the second fixing block (309) are rotatably connected by the connecting rod (311), and both are provided with toothed grooves (304). The toothed block (305) engages in the toothed groove (304), and the spring (308) abuts between the toothed block (305) and the second fixing block (309); the first fixing block (301) has a slot (302), and the pressing block (303) slides in the slot (302) and abuts against the toothed block (305).

2. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The toothed block (305) has a positioning groove (306) inside, and the first fixed insert (301) has a positioning block (307) fixed inside. When the adjustment component (3) is in the locked state, the positioning block (307) is engaged in the positioning groove (306). When the adjustment component (3) is in the folded rotation state, the positioning block (307) is disengaged from the positioning groove (306).

3. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The second fixing block (309) has a connecting sleeve (310) on its inner side. The connecting rod (311) is located inside the connecting sleeve (310) and is used to fix the second fixing block (309) on the other side.

4. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The pressing block (303) is configured to slide in the slot (302) after being pressed, and push the toothed block (305) to squeeze the spring (308) so that it slides completely into the toothed groove (304) inside the second fixing block (309), so that the toothed block (305) disengages from the toothed groove (304) inside the first fixing block (301).

5. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The armrest body (2) has multiple adjustment holes, and the armrest sleeve (1) has a spring clip inside. The spring clip works with the adjustment holes to adjust the extension length of the armrest body (2) inside the armrest sleeve (1).

6. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The support body (7) has multiple adjustment holes, and the support sleeve (6) has a spring block inside. The spring block cooperates with the adjustment holes to adjust the extension length of the support body (7) inside the support sleeve (6).

7. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The bottom of the support body (7) is provided with a rubber foot pad (8), which is configured to contact the ground.

8. The novel rotatable and foldable bedside armrest according to claim 1, characterized in that: The adjustment component (3) is configured such that when the armrest body (2) rotates to 180 degrees and the pressing block (303) is released, the spring (308) resets and pushes the toothed block (305) to re-engage into the toothed groove (304) in the first fixing block (301).

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