Overhanging handrail structure for use in a wheelchair

Abstract

The utility model provides a cantilever handrail structure applied to wheelchair belongs to wheelchair technical field, this structure includes wheelchair frame, is installed with cantilever handrail on backrest support, and cantilever handrail is by connecting piece, clamp cover, limit piece and handrail constitute, connecting piece is installed on the oval vertical rod of backrest support height adjustablely through hoop structure, and the base end of handrail is rotatably arranged in the rear section of the mounting groove of connecting piece, and clamp cover is arranged in the front section of mounting groove, and limit piece is sleeved on handrail and is coaxial with pivot, and guide handrail is accurately clamped into clamp cover, handrail includes mutually parallel mounting section, transition section and handrail section, and handrail section is provided with sponge cover, the utility model has realized that handrail height is adjustable, and angle can rotate and adjust, and the user is convenient to use wheelchair, has improved use comfort and security, and simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and in particular to a cantilevered armrest structure used in wheelchairs. Background Technology

[0002] Wheelchairs are a common mode of transportation for people with mobility impairments, and armrests, as an important component of wheelchairs, directly affect the user's comfort and safety. Existing wheelchair armrest structures have many shortcomings. For example, most armrests are fixed to the wheelchair frame, their height is not adjustable, making it difficult to accommodate the needs of users of different heights, and prolonged use may lead to arm fatigue or discomfort.

[0003] Furthermore, some armrests lack a rotating function, requiring users to extend their arms over the fixed armrests when getting in and out of the wheelchair, which is inconvenient, especially for users with mobility impairments, increasing the difficulty and risk of getting in and out of the wheelchair. In addition, existing armrest structures are often complex to install, requiring high precision, which is detrimental to production and maintenance. Moreover, the armrest's limiting structure is not perfect, making it prone to wobbling during use and affecting stability.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a cantilever handrail structure that is height-adjustable, rotatable, accurately positioned, and easy to install, in order to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of the prior art, the present invention aims to provide a cantilevered armrest structure for use in wheelchairs, which enables the armrest height to be adjusted and the angle to be rotated, making it easier for users to get in and out of the wheelchair and improving comfort and safety.

[0006] To achieve the above and other related objectives, the technical solution provided by this utility model is: a cantilevered armrest structure applied in a wheelchair, including a wheelchair frame, on which a cantilevered armrest is installed. The cantilevered armrest is composed of a connector, a sleeve, a limiting member, and an armrest. The connector is height-adjustable and installed on the backrest frame. The connector has a mounting groove. The sleeve is located at the front of the mounting groove. The base end of the armrest is rotatably mounted at the rear of the mounting groove via a pivot. The limiting member is sleeved on the armrest and coaxially arranged with the pivot. The limiting member is configured to guide the armrest to accurately engage with the sleeve.

[0007] The preferred technical solution is that the backrest support includes a vertical rod, and the cross-section of the vertical rod is elliptical.

[0008] The preferred technical solution is that the connector has a clamp structure that matches the vertical rod, and the connector is fixed to the vertical rod in an adjustable height through the clamp structure.

[0009] The preferred technical solution is as follows: the limiting member is configured as a columnar structure and the middle section is provided with a through hole opened radially, the handrail is inserted through the through hole, the limiting member is provided with a shaft hole that passes through both ends, and the rotating shaft is inserted through the shaft hole.

[0010] The preferred technical solution is that the length of the limiting member corresponds to and matches the width of the mounting groove.

[0011] The preferred technical solution is as follows: the handrail includes an installation section, a transition section, and a handrail means. The installation section is used to connect with the installation groove, the transition section is used to connect the installation section and the handrail means, and to guide the handrail means to the outside of the installation section. The installation section and the handrail means are arranged parallel to each other.

[0012] The preferred technical solution is that a sponge sleeve is fitted onto the handrail.

[0013] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:

[0014] This invention proposes a cantilevered armrest structure for wheelchairs. Through height-adjustable connectors, rotatable armrests, and limiting components, the cantilevered armrest structure allows for flexible adjustment of its height and angle, facilitating user access to and from the wheelchair and improving comfort and safety. Furthermore, it features a simple structure, is easy to install and maintain, and possesses high practical value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wheelchair structure involved in this utility model. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0017] Please see Figure 1It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example:

[0020] like Figure 1 As shown, according to an overall technical concept of this utility model, a cantilever armrest structure for use in a wheelchair is provided, including a wheelchair frame 100. A cantilever armrest is installed on the backrest support 110 of the wheelchair frame 100. The cantilever armrest consists of a connector 1, a sleeve (not shown), a limiting member 2, and an armrest 3. The connector 1 is height-adjustable and installed on the backrest support 110. The connector 1 has a mounting groove 11. The sleeve is located at the front of the mounting groove 11. The base end of the armrest 3 is rotatably mounted on the rear of the mounting groove 11 via a pivot. The limiting member 2 is sleeved on the armrest 3 and coaxially arranged with the pivot. The limiting member 2 is configured to guide the armrest 3 to accurately engage in the sleeve.

[0021] like Figure 1As shown, in an exemplary embodiment of this utility model, the backrest support 110 includes a vertical rod with an elliptical cross-section; the connector 1 has a clamping structure that matches the vertical rod 110, and the connector 1 is height-adjustably fixed to the vertical rod 110 through the clamping structure. The elliptical cross-section of the vertical rod and the clamping structure of the connector 1 provide better stability, preventing the connector 1 from rotating on the vertical rod 110, while facilitating the vertical movement of the connector 1 along the vertical rod 110 to achieve height adjustment. The clamping structure can be fastened with bolts or other fasteners. When the fasteners are loosened, the connector 1 can slide up and down on the vertical rod 110, adjust to a suitable height, and then be tightened again, making the operation simple and convenient.

[0022] like Figure 1 As shown, in an exemplary embodiment of this utility model, the limiting member 2 is configured as a columnar structure with a radially opening through hole in the middle section. The handrail 3 passes through the through hole, and the limiting member 2 has shaft holes extending through both ends, with the rotating shaft passing through the shaft holes. This structure allows the limiting member 2 to rotate around the rotating shaft. Simultaneously, as the handrail 3 passes through the through hole, the limiting member 2 can rotate with the handrail 3. Throughout the entire rotation process, the limiting member 2 can limit the handrail 3, preventing it from swaying left and right. Furthermore, this structure can guide the handrail 3 to accurately engage in the clamp.

[0023] like Figure 1 As shown, in an exemplary embodiment of this utility model, the length of the limiting member 2 corresponds to the width of the mounting groove 11. This structure ensures that the limiting member 2 can accurately guide the handrail 3 within the mounting groove 11, avoiding shaking or jamming, and guaranteeing the accuracy and stability of the handrail 3 being inserted into the clamp.

[0024] like Figure 1 As shown, in an exemplary embodiment of this utility model, the handrail 3 includes a mounting section 31, a transition section 32, and a handrail arm 33. The mounting section 31 is connected to the mounting groove 11, and the transition section 32 is used to connect the mounting section 31 and the handrail arm 33, and to guide the handrail arm 33 to the outside of the mounting section 31. The mounting section 31 and the handrail arm 33 are arranged parallel to each other. This structural design allows the handrail arm 33 to be located outside the mounting section 31, providing a more comfortable grip position for the user. At the same time, the parallel mounting section 31 and the handrail arm 33 ensure the structural strength and stability of the handrail 3.

[0025] like Figure 1 As shown, in an exemplary embodiment of this utility model, a sponge sleeve 4 is fitted onto the armrest 33. The sponge sleeve 4 has good comfort and anti-slip properties, which can improve the comfort of the user when holding the armrest 3, while preventing the hand from slipping and increasing safety.

[0026] Therefore, this utility model has the following advantages:

[0027] The connector is height-adjustable and mounted on the vertical bar of the backrest support via a clamp structure. Users can adjust the armrest height according to their own height to meet the needs of users of different heights, improving comfort. The armrest is rotatably connected to the connector via a pivot. When getting in and out of the wheelchair, the armrest can be rotated open for easy access. When in use, the armrest is rotated and snapped into the clip, ensuring convenient operation and stable installation. The limiting component guides the armrest to accurately snap into the clip, providing good restraint and preventing wobbling during use, thus improving stability and safety. The structural design of the armrest's mounting section, transition section, and handrail ensures that the handrail is located on the outside of the mounting section, providing a more reasonable grip position for the user, while the parallel arrangement ensures the structural strength of the armrest. The sponge sleeve on the handrail improves grip comfort and anti-slip properties, further enhancing the user experience. The overall structure is simple, and the connection and installation methods of each component are clearly defined, facilitating manufacturing and maintenance.

[0028] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. Cantilevered handrail structure for application in a wheelchair, comprising a wheelchair frame, characterized in that: The wheelchair frame has a cantilevered armrest mounted on its backrest support. The cantilevered armrest consists of a connector, a sleeve, a limiting member, and an armrest. The connector is height-adjustable and mounted on the backrest support. The connector has a mounting groove. The sleeve is located at the front of the mounting groove. The base of the armrest is pivotally mounted at the rear of the mounting groove via a pivot. The limiting member is fitted onto the armrest and is coaxially arranged with the pivot. The limiting member is configured to guide the armrest to accurately engage with the sleeve.

2. The overhanging handrail structure for use in a wheelchair according to claim 1, characterized in that: The backrest support includes a vertical rod, the cross-section of which is elliptical.

3. Cantilevered handrail structure for use in a wheelchair according to claim 2, characterized in that: The connector has a clamp structure that matches the vertical rod, and the connector is fixed to the vertical rod in an adjustable height via the clamp structure.

4. The overhanging handrail structure for use in a wheelchair according to claim 1, characterized in that: The limiting member is configured as a columnar structure with a through hole in the middle section that is opened radially. The handrail passes through the through hole. The limiting member has a shaft hole that passes through both ends. The rotating shaft passes through the shaft hole.

5. The overhanging handrest structure for use in a wheelchair according to claim 1, characterized in that: The length of the limiting member corresponds to and matches the width of the mounting groove.

6. The overhanging handrest structure for use in a wheelchair according to claim 1, characterized in that: The handrail includes an installation section, a transition section, and a handrail means. The installation section is connected to the installation groove, the transition section is used to connect the installation section and the handrail means, and to guide the handrail means to the outside of the installation section. The installation section and the handrail means are arranged parallel to each other.

7. The overhanging handrail structure for use in a wheelchair according to claim 6, characterized in that: The handrail is covered with a sponge sleeve.

Images