Customized wheelchair armrest

Abstract

The utility model belongs to the technical field of wheelchair armrests, and discloses a customized wheelchair armrest which comprises two armrest parts symmetrically arranged on a wheelchair, the tops of the two armrest parts are fixedly connected with supporting parts, the tops of the supporting parts form supporting faces for supporting arms of a user, and each supporting part comprises a rubber plate. A rubber plate is arranged on the top rod, a plurality of connecting rods are rotationally connected to the two symmetrical sides of the rubber plate, the connecting rods are distributed one by one in the length direction of the rubber plate, and grab rails are rotationally connected between the connecting rods. The arms of a user are laterally supported through the connecting rods and the ejector rods, then the arms of the user are stably placed, if the user does not have the ability to actively move the arms and no nursing person exists around, the arms of the user can be kept on the rubber plates and cannot be suspended for a long time, and the comfort of the user is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wheelchair armrest technology, specifically relating to a customized wheelchair armrest. Background Technology

[0002] As an essential tool for assisting people with mobility impairments, the human-centered design and functionality of wheelchairs are paramount. Wheelchair armrests, a crucial component, not only provide support and balance but also significantly impact user comfort and overall experience. However, traditional wheelchair armrest designs often present several problems. When using a wheelchair, if the user lacks the ability to actively move their arms and there is no caregiver nearby, their arms may not remain firmly on the armrests, easily slipping off and dangling for extended periods, reducing comfort. Furthermore, existing armrests often incorporate panels or openings. While panels may increase the perceived temperature of the back and thighs in cooler environments, they can lead to higher temperatures in summer, increasing discomfort. Openwork designs, on the other hand, offer the opposite effect. Therefore, existing armrests cannot be adjusted according to actual usage, limiting their applicability. Utility Model Content

[0003] The purpose of this invention is to provide a customized wheelchair armrest to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a customized wheelchair armrest, comprising two armrest components symmetrically arranged on the wheelchair, with a support component fixedly connected to the top of each of the two armrest components. The top of the support component forms a support surface for supporting the user's arm, and the support component includes a rubber plate. Multiple connecting rods are rotatably connected to both sides of the rubber plate. The multiple connecting rods are distributed sequentially along the length direction of the rubber plate, and armrest bars are rotatably connected between the multiple connecting rods.

[0005] Preferably, one side of the connecting rod is open to form a side groove, and the side of the rubber plate near the connecting rod is recessed to form a positioning hole. A detachable screw is screwed between the positioning hole and the side groove.

[0006] Preferably, the handrail component has multiple through-holes, and the interior of the handrail component forms a hollow cavity. The air holes are horizontally arranged, and a baffle for blocking the air holes is slidably connected inside the cavity. A pull rod is fixedly connected to one side of the baffle. The opposite sides of the two handrail components are open to form guide grooves, which communicate with the cavity. The free end of the pull rod slides through the guide groove.

[0007] Preferably, each of the two handrail components has a flow guiding unit fixedly connected to its opposite side. The flow guiding unit forms a flow guiding channel that guides the gas flow along a preset path, and the air outlet of the flow guiding channel is connected to an air hole.

[0008] Preferably, the flow guiding unit includes a flow guiding plate, the flow guiding plate has multiple flow guiding holes, and a fan is fixedly connected inside the flow guiding holes.

[0009] Preferably, the top of the rubber sheet protrudes outward to form an arc-shaped protrusion.

[0010] Preferably, the handrail component includes a handrail bar, and a partition is fixedly connected to the inner side of the handrail bar, with the air hole opened on the partition.

[0011] Preferably, the bottom of the handrail is open to form a connecting cavity, and a movable base rod is slidably connected inside the connecting cavity. One end of the handrail is screwed to an adjusting screw, and the free end of the adjusting screw extends into the connecting cavity and abuts against the base rod.

[0012] Preferably, sealing gaskets are adhered to both sides of the baffle near the air hole.

[0013] Preferably, the diameter of the air vent gradually decreases from one side of the fan to the other.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This utility model supports the user's arm with a rubber plate and pulls the connecting rod and the top rod to rotate, thereby allowing the connecting rod and the top rod to unfold. The connecting rod and the top rod provide lateral support for the user's arm, thus allowing the user's arm to be placed stably. If the user does not have the ability to actively move their arm and there are no caregivers around, the user's arm can be kept on the rubber plate and will not be suspended in the air for a long time, thus improving the user's comfort.

[0016] (2) When the connecting rod and the top rod are unfolded, this utility model fixes the position of the connecting rod and the top rod after unfolding by screwing the screw between the screw and the side groove and the positioning hole, so that the connecting rod and the top rod are more stable when supporting the user's arm, thereby improving the stability of the device during use.

[0017] (3) By pulling the lever, the baffle moves in the inner cavity, opening the air hole, allowing the airflow to blow towards the user's buttocks and thighs according to the user's needs, or closing the air hole, thereby improving the comfort of the user's buttocks and thighs. Attached Figure Description

[0018] Figure 1 This is one of the perspective views of this utility model;

[0019] Figure 2 This is a second perspective view of the present utility model;

[0020] Figure 3 This is a perspective view of the support component of this utility model;

[0021] Figure 4 This is a cross-sectional view of the support component of this utility model;

[0022] Figure 5 This is one of the perspective views of the flow guiding unit of this utility model;

[0023] Figure 6 This is a second perspective view of the flow guiding unit of this utility model;

[0024] In the diagram: 1. Handrail component; 11. Handrail bar; 12. Partition; 13. Flow guiding unit; 131. Flow guiding plate; 132. Flow guiding hole; 133. Fan; 14. Air hole; 15. Guide groove; 16. Pull rod; 17. Inner cavity; 18. Baffle; 19. Bottom rod; 110. Adjusting screw; 111. Sealing gasket; 2. Support component; 21. Rubber plate; 22. Connecting rod; 23. Side groove; 24. Positioning hole; 25. Top rod. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6 As shown, this utility model provides the following technical solution:

[0027] A customized wheelchair armrest includes two armrest components 1 symmetrically arranged on the wheelchair. The top of each armrest component 1 is fixedly connected to a support component 2. The top of the support component 2 forms a support surface for supporting the user's arm. The support component 2 includes a rubber plate 21. Multiple connecting rods 22 are rotatably connected to both sides of the rubber plate 21. The multiple connecting rods 22 are distributed one by one along the length direction of the rubber plate 21, and a top rod 25 is rotatably connected between the multiple connecting rods 22.

[0028] With the above technical solution, before use, the device is fixed to the wheelchair. After the device is fixed, the wheelchair supports the user's buttocks and supports the support member 2. The support member 2 supports the armrest member 1. If the user's hand mobility is poor, in order to make the user's hand stably placed on the armrest member 1, the connecting rod 22 and the top rod 25 are pulled, thereby causing the connecting rod 22 and the top rod 25 to rotate. This allows the connecting rod 22 and the top rod 25 to unfold, supporting the user's arm through the rubber plate 21. The top rod 25 and the connecting rod 22 limit the sides of the user's arm, so that the user's arm will not accidentally fall off the rubber plate 21 after being placed.

[0029] After link 22 is deployed, in order to fix the position of link 22, such as Figures 1-2 As shown, a side groove 23 is formed by opening one side of the connecting rod 22, and a positioning hole 24 is formed by recessing the rubber plate 21 on the side near the connecting rod 22. A detachable screw is screwed between the positioning hole 24 and the side groove 23.

[0030] In this embodiment, the wheelchair supports the user's hips and supports the support member 2, which in turn supports the armrest member 1. If the user's hand mobility is poor, to ensure the user's hand is stably placed on the armrest member 1, the connecting rod 22 and the top rod 25 are pulled, causing them to rotate. This allows the connecting rod 22 and the top rod 25 to unfold, and the screw is screwed into the positioning hole 24 and the side groove 23 to fix their positions. The rubber plate 21 supports the user's arm, and the top rod 25 and the connecting rod 22 limit the movement of the user's arm on both sides, preventing the user's arm from accidentally falling off the rubber plate 21 after placement.

[0031] To allow the handrail component 1 to adjust the airflow or blockage according to actual conditions, such as... Figures 3-4 As shown, the handrail component 1 has multiple through-holes 14, and the interior of the handrail component 1 forms a hollow cavity 17. The air holes 14 are horizontally arranged, and a baffle 18 for blocking the air holes 14 is slidably connected inside the cavity 17. A pull rod 16 is fixedly connected to one side of the baffle 18. The opposite sides of the two handrail components 1 are open to form guide grooves 15. The guide grooves 15 are connected to the cavity 17, and the free end of the pull rod 16 slides through the guide grooves 15.

[0032] In this embodiment, when the wheelchair supports the user, if the environment around the wheelchair is low, pulling the lever 16 and guiding its movement through the guide groove 15 will cause the lever 16 to move the baffle 18 within the inner cavity 17. This will allow the baffle 18 to block the air vent 14, preventing cold air from blowing from near the armrest 1 towards the user's buttocks, thereby improving the user's comfort. If the environment around the wheelchair is high, pulling the lever 16 and guiding its movement through the guide groove 15 will cause the lever 16 to move the baffle 18 within the inner cavity 17, moving the baffle 18 away from the air vent 14. This will allow airflow to easily blow from near the armrest 1 towards the user's buttocks, thereby improving the user's comfort.

[0033] When vent 14 is opened, in order to increase the flow rate of gas through vent 14, such as Figures 1-2 As shown, each of the two handrail components 1 has a flow guiding unit 13 fixedly connected to one side facing away from the other. The flow guiding unit 13 forms a flow guiding channel that guides the flow of gas along a preset path. The air outlet of the flow guiding channel is connected to the air hole 14.

[0034] In this embodiment, when the air vent 14 is open, the airflow is guided by the flow guiding unit 13 to flow along the flow guiding channel, so that the airflow blows towards the user's buttocks and thighs through the air vent 14, thereby improving the user's comfort.

[0035] Specifically, in one embodiment, regarding the aforementioned flow guiding unit 13, as... Figures 5-6 As shown, the flow guiding unit 13 includes a flow guiding plate 131, on which a plurality of flow guiding holes 132 are provided, and a fan 133 is fixedly connected inside the flow guiding holes 132.

[0036] In this embodiment, the fan 133 operates, thereby guiding the airflow along the guide hole 132, so that the airflow blows towards the patient's buttocks and thighs through the air hole 14.

[0037] When the rubber plate 21 supports the user's arm, in order to improve the user's comfort, such as Figures 1-2 As shown, the top of the rubber plate 21 protrudes outward to form an arc-shaped protrusion.

[0038] Specifically, in one embodiment, regarding the aforementioned handrail component 1, as... Figures 1-2 As shown, the handrail component 1 includes a handrail 11, and a partition 12 is fixedly connected to the inner side of the handrail 11. Air holes 14 are opened on the partition 12.

[0039] In this embodiment, the armrests 11 and partition 12 are supported by the wheelchair, and the rubber plate 21 is supported by the armrests 11, thereby supporting the user's arms.

[0040] Furthermore, in this utility model, to facilitate height adjustment of the handrail 11, such as... Figures 1-2 As shown, the bottom of the handrail 11 is open to form a connecting cavity. A movable base rod 19 is slidably connected inside the connecting cavity. One end of the handrail 11 is screwed to an adjusting screw 110. The free end of the adjusting screw 110 extends into the connecting cavity and abuts against the base rod 19.

[0041] In this embodiment, when a person needs to adjust the height of the handrail 11 and the rubber plate 21, they pull the handrail 11 to move it relative to the base rod 19, thereby adjusting the height of the handrail 11. After the height of the handrail 11 is adjusted, the adjusting screw 110 on the handrail 11 is rotated so that the adjusting screw 110 abuts against the base rod 19, thereby fixing the handrail 11 at the height required by the user, making it easy to adjust the height of the handrail 11 according to the user's needs.

[0042] When the baffle 18 blocks the vent 14, in order to increase the sealing between the baffle 18 and the vent 14, such as Figure 4 As shown, sealing gaskets 111 are adhered to both sides of the baffle 18 near the air hole 14.

[0043] When gas is blown toward the user through vent 14, in order to further increase the gas flow rate, such as Figures 1-4 As shown, the diameter of the vent 14 gradually decreases from one side near the fan 133 to the other side.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A custom wheelchair arm rest, characterized by: The utility model provides an improved wheelchair armrest, which comprises two armrests (1) symmetrically arranged on the wheelchair, and a support (2) is fixedly connected to the top of each armrest (1). The top of the support (2) forms a support surface for supporting the user's arm. The support (2) comprises a rubber plate (21), and a plurality of connecting rods (22) are rotatably connected to the two sides of the rubber plate (21). The connecting rods (22) are distributed along the length direction of the rubber plate (21). A top rod (25) is rotatably connected between the connecting rods (22).

2. The custom wheelchair arm rest of claim 1, wherein: An open side slot (23) is formed on one side of the connecting rod (22). A positioning hole (24) is formed on the side of the rubber plate (21) close to the connecting rod (22). A detachable screw rod is rotatably connected between the positioning hole (24) and the side slot (23).

3. A custom wheelchair armrest according to claim 1 or 2, characterised in that: A plurality of through air holes (14) are formed on the armrest (1). The inside of the armrest (1) forms a hollow inner cavity (17). The air holes (14) are horizontally arranged. A baffle (18) is slidably connected to the inside of the inner cavity (17) for shielding the air holes (14). A pull rod (16) is fixedly connected to one side of the baffle (18). An open guide slot (15) is formed on the side of each armrest (1) opposite to the other side. The guide slot (15) is in communication with the inner cavity (17). The free end of the pull rod (16) slidably penetrates the guide slot (15).

4. The custom wheelchair arm rest of claim 3, wherein: A flow guide unit (13) is fixedly connected to the side of each armrest (1) opposite to the other side. The flow guide unit (13) forms a flow guide channel for guiding the gas flow along a predetermined path. The gas outlet end of the flow guide channel is in communication with the air hole (14).

5. The custom wheelchair arm rest of claim 4, wherein: The flow guide unit (13) comprises a flow guide plate (131). A plurality of flow guide holes (132) are formed on the flow guide plate (131). A fan (133) is fixedly connected to the inside of each flow guide hole (132).

6. The custom wheelchair arm rest of claim 1 or 2, wherein: The top of the rubber plate (21) is outwardly convex to form an arc-shaped protrusion.

7. The custom wheelchair arm rest of claim 3, wherein: The armrest (1) comprises an armrest rod (11). A partition plate (12) is fixedly connected to the inner side of the armrest rod (11). The air hole (14) is formed on the partition plate (12).

8. The custom wheelchair arm rest of claim 7, wherein: The bottom of the armrest rod (11) is open to form a connecting cavity. A movable bottom rod (19) is slidably connected to the inside of the connecting cavity. An adjusting screw rod (110) is rotatably connected to one end of the armrest rod (11). The free end of the adjusting screw rod (110) extends into the connecting cavity to abut against the bottom rod (19).

9. The custom wheelchair arm rest of claim 3, wherein: Sealing gaskets (111) are attached to the two sides of the baffle (18) close to the air hole (14).

10. The custom wheelchair arm rest of claim 5, wherein: The diameter of the air hole (14) gradually decreases from one side to the other side close to the fan (133).

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