An adjustable armrest

Abstract

This application discloses an adjustable handrail, relating to the field of protective handrails. It includes a support base with two symmetrical support plates fixed to it. Each support plate is threaded with a fixing bolt. A handrail is mounted on the support base, and a rotating mechanism is provided between the handrail and the support base. An auxiliary fixing mechanism is provided between the support base and the support plates. The rotating mechanism allows the handrail to be mounted on the support base. When the support base is fixed to the edge of the nursing bed, the handrail can be raised or lowered horizontally, making it convenient for the patient to hold onto the handrail when sitting up, and to use the handrail for support when sitting or standing.

Description

Technical Field

[0001] This application relates to the field of protective handrails, and in particular to an adjustable handrail. Background Technology

[0002] In the field of healthcare, bedside handrails play a vital role. They not only provide patients with extra support and help them stay stable in bed, but also provide convenience for caregivers, enabling them to care for patients more safely and efficiently.

[0003] Existing nursing bed armrests typically consist of a support base and an armrest fixed to it. The support base is used to secure the armrest to the edge of the nursing bed, while the armrest provides a gripping area for the patient. This basic armrest structure is relatively simple in design, mainly using bolts to connect the armrest to the support base to ensure its stability during use.

[0004] In practical use, most existing nursing bed handrails are not adjustable and can only provide protection and assistance for patients lying down. For patients who need to sit up or get up, these fixed-height handrails cannot provide the corresponding height assistance, making it difficult and posing certain safety hazards for patients when performing these actions. Utility Model Content

[0005] The purpose of this application is to address the problem that most existing nursing bed handrails mentioned in the background art are not adjustable and generally only provide protection and assistance for patients lying down. For patients who need to sit up or get up, these fixed-height handrails cannot provide the corresponding height assistance, which makes it difficult and poses certain safety hazards for patients when performing these actions. This application provides an adjustable handrail.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An adjustable handrail includes a support base, on which two symmetrical support plates are fixed. Each of the two support plates is threaded with a fixing bolt. A handrail is provided on the support base. A rotating mechanism is provided between the handrail and the support base. An auxiliary fixing mechanism is provided between the support base and the support plates.

[0008] By adopting the above technical solution, the handrail is installed on the support seat using a rotating mechanism. When the support seat is fixed to the edge of the nursing bed, the handrail can be raised or lowered, so that the patient can easily hold the handrail when sitting up and can use the handrail to sit up or stand up.

[0009] Furthermore, the rotating mechanism includes a rotating disk fixed on a support base, a rotating seat is provided on one side of the rotating disk, a rotating shaft is fixed on the rotating seat, the rotating shaft is rotatably connected to the rotating disk, a fixing component is provided between the rotating seat and the rotating disk, and an angle limiting component is provided between the rotating disk and the rotating seat.

[0010] By adopting the above technical solution, the rotating shaft on the rotating plate supports the rotation of the rotating seat, which in turn drives the armrest to rotate. A fixing component then limits the rotation of the rotating seat, allowing for easy adjustment of the armrest. The armrest can be raised or lowered horizontally. When lowered, it provides simple protection for the nursing bed. It also allows patients to easily hold onto the armrest when sitting up, and to use the armrest for support when sitting or standing.

[0011] Furthermore, the fixing component includes a fixing rod slidably connected to the rotating seat, the fixing rod passing through the rotating seat, a pull handle fixed to one end of the fixing rod, and a fixing hole corresponding to the fixing rod on the rotating disk.

[0012] By adopting the above technical solution, when the fixing rod on the rotating seat is aligned with the fixing hole on the rotating disk, the fixing rod is inserted into the fixing hole, thereby facilitating the fixing of the rotating seat and the rotating disk.

[0013] Furthermore, a movable ring is fixed on the fixed rod, and a movable groove is provided on the rotating seat. The movable ring is located in the movable groove, and a support spring is provided in the movable groove. Both ends of the support spring are fixedly connected to the rotating seat and the movable ring.

[0014] By adopting the above technical solution, the support spring supports the moving ring, and the moving ring drives the fixed rod, so that the fixed rod can be easily aligned with the fixed hole and then actively inserted into the fixed hole.

[0015] Furthermore, the angle limiting component includes a limiting block one fixed on the rotating seat, and limiting blocks two fixed on both sides of the rotating disk.

[0016] By adopting the above technical solution, when the rotating seat rotates, the first limiting block on the rotating seat abuts against the second limiting block on the rotating disk, thereby reducing the possibility of the rotating seat rotating excessively on the rotating disk.

[0017] Furthermore, the auxiliary fixing mechanism includes a plug rod disposed between the support base and the support plate. Both the support plate and the support base have plug holes corresponding to the plug rod. The plug rod passes through the support base and the support plate. One end of the plug rod abuts against the support base, and a flexible pin is inserted into the end of the plug rod near the support plate.

[0018] By adopting the above technical solution, the plug rod is inserted into the plug hole and passes through the support base, support plate and nursing bed frame, thereby further improving the stability of the support base and reducing the possibility of the support base detaching from the nursing bed frame.

[0019] Furthermore, a connecting rope is provided between the end of the plug rod away from the elastic pin and the plug rod, and both ends of the connecting rope are fixedly connected to the plug rod and the elastic pin.

[0020] By adopting the above technical solution, the elastic pin is restricted by the connecting rope, thereby reducing the possibility of the elastic pin separating from the plug rod.

[0021] Furthermore, the elastic pin is U-shaped, and one end of the elastic pin is protruding.

[0022] By adopting the above technical solution, the elastic pin is inserted into the insertion hole on the plug rod, and the protrusion on the elastic pin limits the elastic pin, thereby reducing the possibility of the elastic pin falling off the plug rod.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. In this application, pulling the handrail causes it to rotate a rotating seat. The rotating seat, supported by a rotating shaft, rotates on a rotating disk. The rotating seat then rotates a fixed rod. When the fixed rod on the rotating seat aligns with a fixed hole on the rotating disk, a supporting spring pushes a moving ring to rotate the fixed rod, causing it to insert into the fixed hole. This restricts the rotation of the handrail, keeping it vertical under the support of the rotating seat. This allows for the use of a vertical handrail. When the handrail is not required to be vertical, pulling the handle directly rotates the fixed rod, which in turn rotates the moving ring. The moving ring compresses the supporting spring, while the fixed rod is pulled out of the fixed hole. Rotating the handrail causes it to drive the rotating seat, causing the fixed rod on the rotating seat to misalign with the fixed hole on the rotating disk. The handrail drives the rotating seat to rotate. When the first limit block on the rotating seat abuts against the second limit block on the rotating disk, it stops. This achieves the purpose of easily adjusting the handrail, allowing it to be erected or laid flat. When laid flat, it provides simple protection for the nursing bed. It also allows patients to easily hold onto the handrail when sitting up, and use the handrail for leverage to sit up or stand up.

[0025] 2. In this application, the support base and support plate are secured to the edge of the nursing bed from top to bottom. The edge of the nursing bed has holes corresponding to the insertion rod. The holes on the nursing bed frame are aligned with the insertion holes on the support base and support plate. The insertion rod is passed through the support base, the nursing bed frame, and the support plate. Then, the elastic pin is inserted into the pin hole on the insertion rod, preventing the insertion rod from being pulled out. This limits the position of the insertion rod on the support base and support plate. Finally, the fixing bolts on the support plate are tightened to complete the fixation of the support base. This achieves the purpose of further improving the stability of the support base and reducing the possibility of the support base detaching from the nursing bed frame. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the adjustable armrest in this application;

[0027] Figure 2 This is a schematic diagram of the second three-dimensional structure of the adjustable armrest in this application;

[0028] Figure 3 This is a schematic diagram of the disassembled structure of the adjustable armrest in this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Support base; 2. Support plate; 3. Fixing bolt; 4. Handrail; 5. Rotating mechanism; 51. Rotating disk; 52. Rotating seat; 53. Rotating shaft; 54. Fixing assembly; 541. Fixing rod; 542. Fixing hole; 543. Pull handle; 544. Moving ring; 545. Support spring; 55. Angle limiting assembly; 551. Limiting block one; 552. Limiting block two; 6. Auxiliary fixing mechanism; 61. Insertion rod; 62. Insertion hole; 63. Elastic pin; 64. Connecting rope. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses an adjustable armrest.

[0033] Reference Figure 1 , Figure 2 and Figure 3 An adjustable handrail 4 includes a support base 1, two symmetrical support plates 2 fixed on the support base 1, and fixing bolts 3 threadedly connected to both support plates 2. A handrail 4 is provided on the support base 1, a rotating mechanism 5 is provided between the handrail 4 and the support base 1, and an auxiliary fixing mechanism 6 is provided between the support base 1 and the support plates 2.

[0034] When using the adjustable armrest 4, first move the support base 1 to one side of the nursing bed frame. Place the support base 1 and support plate 2 onto the nursing bed frame, partially enclosing the frame. Tighten the fixing bolts 3 on the support plate 2 until they abut against the edge of the nursing bed, ensuring the support base 1 is firmly secured. Then, use the auxiliary fixing mechanism 6, which passes through the support base 1, support plate 2, and nursing bed frame, to further restrict the support base 1, completing the installation of the armrest 4 on the nursing bed frame. In daily use, the side of the armrest 4 is slightly higher than the nursing bed frame, allowing the patient to grip and use it comfortably. When the patient sits up on the nursing bed or needs to use the armrest 4 to get up, the armrest 4 rotates under the support of the rotating mechanism 5, so that one end of the armrest 4 is vertically upward. Then, when the patient sits up, it is convenient to hold onto the armrest 4, and at the same time, the patient can use the armrest 4 to use the armrest 4 to get up or stand up. When the armrest 4 is no longer needed to be upright, the rotating mechanism 5 is used to retract the armrest 4. By using the rotating mechanism 5 to install the armrest 4 on the support base 1, and fixing the support base 1 to the edge of the nursing bed, the armrest 4 can be upright or flat, so that the patient can conveniently hold onto the armrest 4 when sitting up, and at the same time, the patient can use the armrest 4 to use the armrest 4 to get up or stand up.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The rotating mechanism 5 includes a rotating disk 51 fixed on a support base 1, a rotating seat 52 on one side of the rotating disk 51, a rotating shaft 53 fixed on the rotating seat 52, the rotating shaft 53 being rotatably connected to the rotating disk 51, a fixing component 54 between the rotating seat 52 and the rotating disk 51, and an angle limiting component 55 between the rotating disk 51 and the rotating seat 52.

[0036] In addition, the fixing component 54 includes a fixing rod 541 that is slidably connected to the rotating seat 52. The fixing rod 541 passes through the rotating seat 52, and a pull handle 543 is fixed to one end of the fixing rod 541. The rotating disk 51 has a fixing hole 542 corresponding to the fixing rod 541.

[0037] Furthermore, a movable ring 544 is fixed on the fixed rod 541, and a movable groove is provided on the rotating seat 52. The movable ring 544 is located in the movable groove, and a support spring 545 is provided in the movable groove. Both ends of the support spring 545 are fixedly connected to the rotating seat 52 and the movable ring 544.

[0038] Furthermore, the angle limiting component 55 includes a limiting block 551 fixed on the rotating seat 52, and limiting blocks 552 fixed on both sides of the rotating disk 51.

[0039] In daily use, the armrest 4, supported by the rotating seat 52, has its limiting block 1 551 abutting against the corresponding limiting block 2 552, allowing the armrest 4 to be placed horizontally on the edge of the nursing bed. When the armrest 4 needs to be raised, simply pull the armrest 4, causing it to move the rotating seat 52. The rotating seat 52, supported by the rotating shaft 53, rotates on the rotating disk 51. The rotating seat 52 then rotates the fixing rod 541. When the fixing rod 541 on the rotating seat 52 aligns with the fixing hole 542 on the rotating disk 51, the moving ring 544, pushed by the support spring 545, moves the fixing rod 541, causing it to insert into the fixing hole 542. This restricts the rotating seat 52, keeping the armrest 4 vertical under the support of the rotating seat 52. The armrest 4 is used when it is vertical. When the armrest 4 does not need to be vertical, simply pull the handle 543 to move the fixing rod 541. The fixed rod 541 drives the moving ring 544, which in turn compresses the support spring 545. At the same time, the fixed rod 541 is pulled out of the fixed hole 542. The armrest 4 is rotated, causing the armrest 4 to drive the rotating seat 52. This causes the fixed rod 541 on the rotating seat 52 to be misaligned with the fixed hole 542 on the rotating disk 51. The armrest 4 drives the rotating seat 52 to rotate. When the first limit block 551 on the rotating seat 52 abuts against the second limit block 552 on the rotating disk 51, the armrest 4 is stopped. By allowing the rotating seat 52 to support the armrest 4 to rotate on the rotating disk 51, and then using the fixed rod 541 to limit the rotating disk 51 and the rotating seat 52, the support state of the armrest 4 on the rotating disk 51 is changed. This allows for easy adjustment of the armrest 4, enabling it to be raised or lowered. When lowered, the armrest 4 provides simple protection for the nursing bed. When the patient sits up, the armrest 4 can be used to hold onto the armrest 4 for support, allowing the patient to sit up or stand up.

[0040] Reference Figure 1 , Figure 2 and Figure 3 The auxiliary fixing mechanism 6 includes a plug rod 61 disposed between the support base 1 and the support plate 2. Both the support plate 2 and the support base 1 are provided with plug holes 62 corresponding to the plug rod 61. The plug rod 61 passes through the support base 1 and the support plate 2. One end of the plug rod 61 abuts against the support base 1, and an elastic pin 63 is inserted into the end of the plug rod 61 near the support plate 2.

[0041] In addition, a connecting rope 64 is provided between the end of the plug rod 61 away from the elastic pin 63 and the plug rod 61. Both ends of the connecting rope 64 are fixedly connected to the plug rod 61 and the elastic pin 63.

[0042] Furthermore, the flexible pin 63 is U-shaped, and one end of the flexible pin 63 is protruding.

[0043] When installing the support base 1, the support base 1 is L-shaped. The support base 1 and the support plate 2 are clamped onto the edge of the nursing bed from top to bottom. The edge of the nursing bed has holes corresponding to the insertion rod 61. The holes on the nursing bed frame are aligned with the insertion holes 62 on the support base 1 and the support plate 2. The insertion rod 61 is passed through the support base 1, the nursing bed frame, and the support plate 2. Then, the elastic pin 63 is inserted into the pin hole on the insertion rod 61, making the insertion rod 61 unable to be pulled out. The insertion rod 61 limits the support base 1 and the support plate 2. Then, the fixing bolts 3 on the support plate 2 are tightened to complete the fixation of the support base 1. By clamping the support base 1 and the support plate 2 onto the edge of the nursing bed, and using the insertion rod 61 to pass through the support base 1, the nursing bed frame, and the support plate 2 before tightening the fixing bolts 3, the stability of the support base 1 can be further improved, and the possibility of the support base 1 detaching from the nursing bed frame can be reduced.

[0044] Working principle: When installing the support base 1, the support base 1 and support plate 2 are positioned from top to bottom and secured to the edge of the nursing bed. The edge of the nursing bed has holes corresponding to the insertion rod 61. The holes on the nursing bed frame are aligned with the insertion holes 62 on the support base 1 and support plate 2. The insertion rod 61 is then passed through the support base 1, the nursing bed frame, and the support plate 2. Finally, the elastic pin 63 is inserted into the pin hole on the insertion rod 61, preventing the insertion rod 61 from being pulled out. The support base 1 and support plate 2 are positioned to limit the movement, and then the fixing bolts 3 on the support plate 2 are tightened. In daily use, the armrest 4, supported by the rotating base 52, has its limiting block 1 551 on the rotating base 52 abutting against the corresponding limiting block 2 552, allowing the armrest 4 to be placed horizontally on the edge of the nursing bed. When the armrest 4 needs to be raised, simply pull the armrest 4, causing it to drive the rotating base 52. The rotating base 52, supported by the rotating shaft 53, rotates on the rotating disk 51. The seat 52 drives the fixed rod 541 to rotate. When the fixed rod 541 on the rotating seat 52 is aligned with the fixed hole 542 on the rotating disk 51, the moving ring 544 drives the fixed rod 541 under the push of the support spring 545, allowing the fixed rod 541 to insert into the fixed hole 542, thus restricting the rotating seat 52 and keeping the handrail 4 vertical under the support of the rotating seat 52. The vertical handrail 4 is used for this purpose. When the handrail 4 does not need to be vertical, the handle 5 can be pulled directly. 43 drives the fixed rod 541, which in turn drives the moving ring 544, causing the moving ring 544 to compress the support spring 545. At the same time, the fixed rod 541 is pulled out of the fixed hole 542. The handrail 4 is rotated, causing the handrail 4 to drive the rotating seat 52, causing the fixed rod 541 on the rotating seat 52 to be misaligned with the fixed hole 542 on the rotating disk 51. The handrail 4 drives the rotating seat 52 to rotate, and stops when the first limit block 551 on the rotating seat 52 abuts against the second limit block 552 on the rotating disk 51.

Claims

1. An adjustable handrail, comprising a support base (1), characterized in that: Two symmetrical support plates (2) are fixed on the support base (1). Each of the two support plates (2) is threaded with a fixing bolt (3). A handrail (4) is provided on the support base (1). A rotating mechanism (5) is provided between the handrail (4) and the support base (1). An auxiliary fixing mechanism (6) is provided between the support base (1) and the support plate (2).

2. An adjustable armrest according to claim 1, characterized in that: The rotating mechanism (5) includes a rotating disk (51) fixed on a support base (1), a rotating seat (52) is provided on one side of the rotating disk (51), a rotating shaft (53) is fixed on the rotating seat (52), the rotating shaft (53) is rotatably connected to the rotating disk (51), a fixing component (54) is provided between the rotating seat (52) and the rotating disk (51), and an angle limiting component (55) is provided between the rotating disk (51) and the rotating seat (52).

3. An adjustable armrest according to claim 2, characterized in that: The fixing component (54) includes a fixing rod (541) slidably connected to the rotating seat (52), the fixing rod (541) passing through the rotating seat (52), a pull handle (543) fixed at one end of the fixing rod (541), and a fixing hole (542) corresponding to the fixing rod (541) on the rotating disk (51).

4. An adjustable armrest according to claim 3, characterized in that: A movable ring (544) is fixed on the fixed rod (541), and a movable groove is provided on the rotating seat (52). The movable ring (544) is located in the movable groove, and a support spring (545) is provided in the movable groove. Both ends of the support spring (545) are fixedly connected to the rotating seat (52) and the movable ring (544).

5. An adjustable armrest according to claim 2, characterized in that: The angle limiting component (55) includes a limiting block one (551) fixed on the rotating seat (52), and limiting blocks two (552) are fixed on both sides of the rotating disk (51).

6. An adjustable armrest according to claim 1, characterized in that: The auxiliary fixing mechanism (6) includes a plug rod (61) disposed between the support base (1) and the support plate (2). Both the support plate (2) and the support base (1) are provided with plug holes (62) corresponding to the plug rod (61). The plug rod (61) passes through the support base (1) and the support plate (2). One end of the plug rod (61) abuts against the support base (1). An elastic pin (63) is inserted into the end of the plug rod (61) near the support plate (2).

7. An adjustable armrest according to claim 6, characterized in that: A connecting rope (64) is provided between the end of the plug rod (61) away from the elastic pin (63) and the plug rod (61). Both ends of the connecting rope (64) are fixedly connected to the plug rod (61) and the elastic pin (63).

8. An adjustable armrest according to claim 7, characterized in that: The elastic pin (63) is U-shaped, and one end of the elastic pin (63) is protruding.

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