Multifunctional sickbed armrest

Abstract

The utility model relates to the technical field of sickbed armrests, and discloses a multifunctional sickbed armrest which comprises an armrest rod, the bottom of the inner wall of the armrest rod is rotatably connected with a first rotating rod, the front end of the first rotating rod is fixedly connected with a first main bevel gear, and the outer wall of the first main bevel gear is connected with a second main bevel gear in a meshed mode. A second rotating rod is fixedly connected to the right end of the inner wall of the second main bevel gear, a plurality of first side bevel gears are fixedly connected to the right end and the middle of the second rotating rod, second side bevel gears are connected to the outer walls of the first side bevel gears in a meshed mode, and a ratchet wheel is fixedly connected to the position, close to the middle, of the left side of the second rotating rod. According to the utility model, the handrail is pushed to drive the rotating rod I to rotate, and meanwhile, the ratchet wheel rotates along with the rotating rod II, so that the rotating rod II can only move in one direction, and the pressing block is pressed to drive the moving frame to push the stop block upwards, so that the effect that the handrail can be pushed down when not in use and can bear larger force is realized.

Description

Technical Field

[0001] This utility model relates to the field of hospital bed handrail technology, and in particular to a multifunctional hospital bed handrail. Background Technology

[0002] Hospital beds are essential equipment used for patient examination, diagnosis, and treatment. They consist of a headboard, bed frame, and mattress, and feature adjustable height, angle, and position. In emergencies, they allow for rapid transfer of patients to safety or first aid, and can aid in rehabilitation training, such as adjusting posture, sitting up, and lying down, to promote the recovery of physical function. The most basic function of bed handrails is to provide body support for patients. When patients want to sit up, turn over, or move their body position, the handrails allow them to use their arm strength to pull on the handrails to adjust their posture. Holding the handrails firmly helps them better control the degree and speed of their ascent, reducing the stress on their lower back. For patients who are unconscious, have limited mobility, or are asleep, there is a risk of falling out of bed. Handrails can serve as a protective device to prevent accidental falls. However, in scenarios where handrails are not needed, they can actually be a hindrance.

[0003] The existing folding mechanism mainly consists of connecting rods and pivots. The connecting rods are movably connected by connecting parts such as pins. One end is connected to the armrest, and the other end is connected to a fixed part of the hospital bed. When the armrest needs to be folded, the armrest is pushed, and the connecting rod rotates accordingly, causing the armrest to fold to the side of the hospital bed. The angle between the connecting rods changes, allowing the armrest to fit tightly against the side of the hospital bed. However, this folding method is prone to causing the armrest to fold back due to excessive force during use, thus failing to achieve the protective effect. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multifunctional bed handrail, which aims to improve the problem in the prior art where excessive force causes the handrail to fold back and fail to achieve the protective effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional hospital bed handrail, comprising a handrail, a rotating rod rotatably connected to the bottom of the inner wall of the handrail, a main bevel gear 1 fixedly connected to the front end of the rotating rod 1, a main bevel gear 2 meshing with the outer wall of the main bevel gear 1, a rotating rod 2 fixedly connected to the right end of the inner wall of the main bevel gear 2, multiple side bevel gears 1 fixedly connected to the right end and middle of the rotating rod 2, side bevel gears 2 meshing with the outer wall of the side bevel gears 1, and a ratchet fixedly connected to the left side of the rotating rod 2 near the middle. The ratchet has a stop block engaged on its outer wall. A movable frame is fixedly connected to the left side of the outer wall of the stop block. Multiple connecting posts are fixedly connected to the bottom of each movable frame. Pressing blocks are fixedly connected to the bottom of each of the multiple connecting posts. Multiple springs are fixedly connected to the top of each movable frame. Movable posts are slidably connected to the inner walls of the springs. The bottom of the outer walls of the movable posts is slidably connected to the inner side of the top of the movable frame. Multiple support rods are rotatably connected to the bottom of each handrail. A replacement mechanism is provided at the bottom of the handrail for disassembly and replacement.

[0006] As a further description of the above technical solution:

[0007] The replacement mechanism includes a sliding plate, the top of which is rotatably connected to the bottom of a support rod. Multiple grooves are provided at the bottom of the front and rear ends of the outer wall of the sliding plate. A long strip fixing plate is slidably connected to the bottom of the outer wall of the sliding plate. A sliding groove is provided inside the long strip fixing plate. A fixing screw is slidably connected to the bottom of the long strip fixing plate. A nut is threaded onto the top outer wall of the fixing screw.

[0008] As a further description of the above technical solution:

[0009] A T-shaped fixing plate is fixedly connected to the front end of the handrail near the middle, and the bottom of the T-shaped fixing plate is fixedly connected to the top of the movable column.

[0010] As a further description of the above technical solution:

[0011] A protective shell is fixedly connected to the front end of the handrail, and a handle is fixedly connected to the left end of the handrail.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the stop is rotatably connected to a square fixing plate, and the front side of the square fixing plate is fixedly connected to the front side of the inner wall of the protective shell.

[0014] As a further description of the above technical solution:

[0015] The bottom of the support rod is fixedly connected to a rotating rod three, and the outer wall of the rotating rod three is rotatably connected to the top of the sliding plate.

[0016] As a further description of the above technical solution:

[0017] The top of each groove has multiple square holes, and the top of the groove has a circular hole near the center.

[0018] As a further description of the above technical solution:

[0019] The top of the nut is slidably connected to a protective cover, and the bottom of the protective cover is slidably connected to the top of the sliding plate near the middle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, pushing the handrail causes the first rotating rod to rotate, which in turn causes the first and second main bevel gears to rotate, and then causes the second rotating rod to rotate. At the same time, the ratchet follows the rotation of the second rotating rod. Under the action of the stop block, the ratchet can only rotate in one direction, causing the second rotating rod to move in one direction only. Pressing the pressing block causes the pressing block to move the moving frame and push the stop block upward, while simultaneously squeezing the spring upward. At this time, the stop block leaves the outer wall of the ratchet, realizing the effect of pushing down the handrail when it is not needed, and being able to withstand greater force.

[0022] 2. In this utility model, when the handrail is damaged and needs to be replaced, unscrew the nut and then remove the fixing screw. At this time, push the sliding plate backward. The sliding plate can slide in the groove of the long fixing plate until it slides out, thus achieving the effect of replacing the handrail by disassembly when it is damaged. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a multifunctional hospital bed handrail proposed in this utility model;

[0024] Figure 2 This is a partial structural breakdown diagram of the sliding plate of a multifunctional hospital bed handrail proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the handrail of a multifunctional hospital bed handrail proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the rotating rod of a multifunctional hospital bed handrail proposed in this utility model;

[0027] Figure 5 This is a partial structural breakdown of the ratchet mechanism of a multifunctional hospital bed handrail proposed in this utility model.

[0028] Legend:

[0029] 1. Handrail; 2. Replacement mechanism; 201. Sliding plate; 202. Groove; 203. Long strip fixing plate; 204. Slide groove; 205. Fixing screw; 206. Nut; 3. Rotating rod one; 4. Main bevel gear one; 5. Main bevel gear two; 6. Rotating rod two; 7. Ratchet; 8. Stop block; 9. Moving frame; 10. Connecting column; 11. Pressing block; 12. Spring; 13. Moving column; 14. T-shaped fixing plate; 15. Square fixing plate; 16. Side bevel gear one; 17. Side bevel gear two; 18. Support rod; 19. Rotating rod three; 20. Square hole; 21. Protective shell; 22. Handle; 23. Protective cover; 24. Circular hole. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 5 This utility model provides an embodiment of a multifunctional hospital bed handrail, including a handrail 1. A rotating rod 3 is rotatably connected to the bottom of the inner wall of the handrail 1, serving a transmission function. A main bevel gear 4 is fixedly connected to the front end of the rotating rod 3. A main bevel gear 5 is meshed with the outer wall of the main bevel gear 4, allowing the entire system to transmit power through the main bevel gear 4 and the main bevel gear 5. A rotating rod 6 is fixedly connected to the right end of the inner wall of the main bevel gear 5. Multiple side bevel gears 16 are fixedly connected to the right end and middle of the rotating rod 6, serving a transmission function. Side bevel gears 17 are meshed with the outer wall of the side bevel gears 16. A ratchet 7 is fixedly connected to the left side of the rotating rod 6 near the middle, allowing the rotating rod 6 to move only in one direction. The ratchet 7 is meshed with the outer wall of the ratchet 7. A stop block 8 is attached, and a movable frame 9 is fixedly connected to the left side of the outer wall of the stop block 8, which can drive the stop block 8 to move upward. Multiple connecting posts 10 are fixedly connected to the bottom of each movable frame 9, and pressing blocks 11 are fixedly connected to the bottom of each of the multiple connecting posts 10, which can push the stop block 8 upward and make it rotate in the opposite direction. Multiple springs 12 are fixedly connected to the top of each movable frame 9, and movable posts 13 are slidably connected to the inner wall of each spring 12. When the external force is removed, the springs 12 can drive the parts to reset. The bottom of the outer wall of the movable posts 13 is slidably connected to the inner side of the top of the movable frame 9. Multiple support rods 18 are rotatably connected to the bottom of each handrail 1, which improves the overall stability. A replacement mechanism 2 is provided at the bottom of the handrail 1, which is used for disassembly and replacement.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The replacement mechanism 2 includes a sliding plate 201. The top of the sliding plate 201 is rotatably connected to the bottom of the support rod 18. The sliding plate 201 can slide out. Multiple grooves 202 are provided at the bottom of the front and rear ends of the outer wall of the sliding plate 201. A long strip fixing plate 203 is slidably connected to the bottom of the outer wall of the sliding plate 201, so that the sliding plate 201 can slide on the long strip fixing plate 203. A sliding groove 204 is provided inside the long strip fixing plate 203. A fixing screw 205 is slidably connected to the bottom of the long strip fixing plate 203, which plays a fixing role. A nut 206 is threadedly connected to the top outer wall of the fixing screw 205.

[0033] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 A T-shaped fixing plate 14 is fixedly connected to the front end of the handrail 1 near the middle. The bottom of the T-shaped fixing plate 14 is fixedly connected to the top of the moving column 13, which improves the overall stability. A protective shell 21 is fixedly connected to the front end of the handrail 1. A handle 22 is fixedly connected to the left end of the handrail 1 for easy gripping. A square fixing plate 15 is rotatably connected to the outer wall of the stop block 8. The front side of the square fixing plate 15 is fixedly connected to the front side of the inner wall of the protective shell 21, which can protect the bevel gear inside.

[0034] Please see the appendix Figure 1 and attached Figure 2 The bottom of the support rod 18 is fixedly connected to a rotating rod 19. The outer wall of the rotating rod 19 is rotatably connected to the top of the sliding plate 201, which improves the overall stability. The top of the groove 202 is provided with multiple square holes 20, so that the support rod 18 can be locked in the square holes 20 when it is retracted. The top of the slide groove 204 is provided with a circular hole 24 near the middle. The top of the nut 206 is slidably connected to a protective cover 23. The bottom of the protective cover 23 is slidably connected to the top of the sliding plate 201 near the middle, protecting the nut 206 and the fixing screw 205 inside, preventing the patient from touching them.

[0035] Working principle: When opening is required, push the lever 1 to the right. Lever 1 causes the rotating rod 3 to rotate, which in turn causes the main bevel gear 4 to rotate. The main bevel gear 4 then causes the main bevel gear 5 to rotate, which in turn causes the rotating rod 6 to rotate. Simultaneously, ratchet 7 rotates with the rotating rod 6. Due to the action of the stop block 8, ratchet 7 can only rotate in one direction, causing the rotating rod 6 to move in only one direction. At this time, the rotating rod 6 drives the side bevel gears 16 and 17 to move in one direction. Rotate until the handrail 1 is raised. When it needs to be lowered, press the pressing block 11. The pressing block 11 will drive the moving frame 9 to push the stop block 8 upward. At the same time, the moving frame 9 will press the spring 12 upward against the moving column 13. At this time, the stop block 8 will leave the outer wall of the ratchet 7, and then the handrail can be pushed in the opposite direction. When the handrail is lowered, release the pressing block 11. At this time, the spring 12 will return to its original state and push the stop block 8 back. At the same time, the pressing block 11 will be pushed back. This achieves the effect of pushing down the handrail when it is not needed and can withstand greater force.

[0036] When the handrail is damaged and needs to be replaced, unscrew the nut 206 and remove the fixing screw 205. Then push the sliding plate 201 backward. The sliding plate 201 can slide in the groove 204 of the long fixing plate 203 until it slides out. Then take out the new handrail. Similarly, push the sliding plate 201 back along the groove 204 on the long fixing plate 203, then push the fixing screw 205 back, and rotate the nut 206. This achieves the effect of replacing the handrail by disassembly when it is damaged.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional hospital bed handrail, comprising a handrail (1), characterized in that: The bottom of the inner wall of the handrail (1) is rotatably connected to a rotating rod (3). The front end of the rotating rod (3) is fixedly connected to a main bevel gear (4). The outer wall of the main bevel gear (4) is meshed with a main bevel gear (5). The right end of the inner wall of the main bevel gear (5) is fixedly connected to a rotating rod (6). The right end and middle of the rotating rod (6) are both fixedly connected to multiple side bevel gears (16). The outer wall of the side bevel gears (16) is meshed with a side bevel gear (17). The left side of the rotating rod (6) near the middle is fixedly connected to a ratchet (7). The outer wall of the ratchet (7) is meshed with a stop block (8). A movable frame (9) is fixedly connected to the left side of the outer wall. Multiple connecting columns (10) are fixedly connected to the bottom of each movable frame (9). Pressing blocks (11) are fixedly connected to the bottom of each of the multiple connecting columns (10). Multiple springs (12) are fixedly connected to the top of each movable frame (9). A movable column (13) is slidably connected to the inner wall of each spring (12). The bottom of the outer wall of the movable column (13) is slidably connected to the inner side of the top of the movable frame (9). Multiple support rods (18) are rotatably connected to the bottom of each handrail (1). A replacement mechanism (2) is provided at the bottom of the handrail (1). The replacement mechanism (2) is used for disassembly and replacement.

2. The multifunctional bed armrest according to claim 1, characterized in that: The replacement mechanism (2) includes a sliding plate (201), the top of which is rotatably connected to the bottom of the support rod (18). Multiple grooves (202) are provided at the bottom of the front and rear ends of the outer wall of the sliding plate (201). A long strip fixing plate (203) is slidably connected to the bottom of the outer wall of the sliding plate (201). A sliding groove (204) is provided inside the long strip fixing plate (203). A fixing screw (205) is slidably connected to the bottom of the long strip fixing plate (203). A nut (206) is threadedly connected to the top outer wall of the fixing screw (205).

3. The multifunctional bed armrest according to claim 1, characterized in that: A T-shaped fixing plate (14) is fixedly connected to the front end of the handrail (1) near the middle, and the bottom of the T-shaped fixing plate (14) is fixedly connected to the top of the movable column (13).

4. A multifunctional bed armrest according to claim 1, characterized in that: The front end of the handrail (1) is fixedly connected to a protective shell (21), and the left end of the handrail (1) is fixedly connected to a handle (22).

5. A multifunctional bed armrest according to claim 1, characterized in that: The outer wall of the stop (8) is rotatably connected to a square fixing plate (15), and the front side of the square fixing plate (15) is fixedly connected to the front side of the inner wall of the protective shell (21).

6. A multifunctional hospital bed armrest according to claim 1, characterized in that: The bottom of the support rod (18) is fixedly connected to a rotating rod three (19), and the outer wall of the rotating rod three (19) is rotatably connected to the top of the sliding plate (201).

7. A multifunctional hospital bed armrest according to claim 2, characterized in that: The top of each groove (202) is provided with multiple square holes (20), and the top of the slide (204) is provided with a circular hole (24) near the middle.

8. A multifunctional bed armrest according to claim 2, characterized in that: The top of the nut (206) is slidably connected to a protective cover (23), and the bottom of the protective cover (23) is slidably connected to the top of the sliding plate (201) near the middle.

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