Adjustable application type wheelchair limiting device

Abstract

The utility model discloses an adjustable applicable wheelchair limiting device, which is applied to a wheelchair and comprises a seat mounted on a keel. The keel comprises a frame base, and the four corners of the frame base are each provided with a clamping piece capable of being connected with the wheelchair framework in a clamped mode. The auxiliary positioning rods are assembled on the frame base through hinges and connected with the top edge of the wheelchair back in an inserted mode, and the two auxiliary positioning rods turn over oppositely. According to the adjustable application type wheelchair limiting device provided by the utility model, the seat is improved, so that the seat is divided into a depth adjusting group consisting of the hip sitting part and the front edge part and a width adjusting group consisting of the central part and the side wing parts, and the depth and the width can be flexibly changed according to requirements, so that the adjustable application type wheelchair limiting device is suitable for children with different heights and weights.

Description

Technical Field

[0001] The utility model relates to the production of medical equipment, in particular to an adjustable application-type wheelchair limiting device. Background Art

[0002] Wheelchairs are a common medical device, mainly used to serve patients who cannot walk. With the development of hospitals, public rental wheelchairs have become popular. These foldable wheelchairs greatly facilitate patients' needs in hospitals.

[0003] Since wheelchairs are of fixed specifications, they are not very friendly to pediatric patients. Due to the size of children, their backs cannot lean against the wheelchair backrest when sitting in a wheelchair, so the children will lean back against the wheelchair backrest. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable application type wheelchair limiter device to solve the above problems

[0005] In order to achieve the above-mentioned object, the present utility model provides the following technical solutions: an adjustable application-type wheelchair limiting device, applied to a wheelchair, and also including a seat mounted on the keel;

[0006] The keel comprises:

[0007] A frame base, the four corners of which are respectively provided with clamping pieces capable of being clamped with the wheelchair frame;

[0008] Auxiliary positioning rods are assembled on the frame base through hinges and plugged into the top edge of the wheelchair backrest, and the two auxiliary positioning rods are flipped towards each other.

[0009] Preferably, the seat is divided into a hip seat portion and a front portion according to its structure, and the hip seat portion is slidably arranged on the frame base and moves relative to the front portion.

[0010] Preferably, a first transmission shaft is rotatably provided on the frame base;

[0011] A first threaded rod is rotatably provided on the front portion, and the first threaded rod is threadedly assembled with a threaded sleeve welded on the hip seat portion;

[0012] The first transmission shaft and the first threaded rod are in transmission connection via a trapezoidal gear set.

[0013] Preferably, an elastic nylon decorative cloth is provided at the junction of the buttocks seat portion and the front portion.

[0014] Preferably, the seat is further divided into a central portion and side wing portions arranged symmetrically about the central portion according to its structure;

[0015] The side wing parts are all slidably arranged on the frame base and move relative to the central part.

[0016] Preferably, a double-ended threaded screw is rotatably provided on the frame base, and a threaded sleeve that matches the thread of the double-ended threaded screw is fixedly installed on the wing portion.

[0017] Preferably, elastic nylon decorative fabric is provided at the junction of the central portion and the side wing portions.

[0018] In the above technical solution, the utility model provides an adjustable application-type wheelchair limiting device, which has the following beneficial effects: through the design of a seat with a keel and a wheelchair that can be movably assembled and disassembled, the wheelchair can be adapted for use by children.

[0019] The seat is also improved in the design so that it is divided into a depth adjustment group consisting of a hip seat part and a front part, and a width adjustment group consisting of a center part and side wing parts, so that the depth and width can be flexibly changed according to needs to suit children of different heights and weights. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of an explosion structure provided in an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of the structure of a wheelchair and a keel provided in an embodiment of the present utility model;

[0024] Figure 4 The embodiment of the present utility model provides a schematic diagram of a transmission structure;

[0025] Figure 5 A schematic diagram of the structure of the hip seat portion and the front portion is provided for an embodiment of the present utility model;

[0026] Figure 6 A schematic diagram of a transmission structure of a central portion and a wing portion is provided for an embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Wheelchair; 2. Keel; 21. Frame base; 22. Fastener; 23. Auxiliary positioning rod; 3. Seat; 31. Hip seat; 32. Front portion; 33. Center portion; 34. Side wing portion; 4. First transmission shaft; 5. First threaded rod; 51. Threaded sleeve; 6. Trapezoidal gear set; 7. Double-ended threaded screw; 100. Elastic nylon decorative fabric. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-6 As shown, an adjustable application-type wheelchair limiting device includes a seat 3 mounted on a keel 2, wherein the keel 2 includes a frame base 21, and the frame base 21 is respectively provided with:

[0031] A clamping member 22 capable of being clamped to the frame of the wheelchair 1, wherein four clamping members 22 are provided;

[0032] The auxiliary positioning rods 23 are assembled on the frame base 21 through hinges and plugged into the top edge of the backrest of the wheelchair 1. The two auxiliary positioning rods 23 are flipped toward each other, as shown in FIG. Figure 3 As shown. It is convenient for daily folding and storage.

[0033] Further, combined Figure 5 and Figure 6 It can be seen that the seat 3 in the embodiment is composed of six parts: I, II, III, IV, V, and VI. The details are as follows:

[0034] I, V, and VI form the front portion 32, I is fixedly mounted on the frame base 21;

[0035] II, III, and IV form the buttocks seat 31, II is slidably mounted on the frame base 21, Figure 5 As shown, the sliding direction is away from Ⅰ;

[0036] V and IV, VI and III form the side wings 34, while II and I form the center 33. A double-ended threaded screw 7 is rotatably mounted on II, with its threads at both ends threadably connected to threaded sleeves 51 fixedly mounted on IV and III. One end of the double-ended threaded screw 7 then passes through a groove in the frame base 21. Rotating the double-ended threaded screw 7 simultaneously moves the side wings 34 away from or toward the center 33, thereby achieving width adjustment to accommodate children of varying weights.

[0037] Furthermore, in the embodiment, the first threaded rod 5 is rotatably mounted on I, while the threaded sleeve 51 is welded to II. The first transmission shaft 4 is rotatably mounted on the frame base 21. The first threaded rod 5 and the first transmission shaft 4 are driven by a trapezoidal gear set 7, which comprises two meshing bevel gears. This achieves the technical purpose of moving the hip seat 31 away from or closer to the front portion 32, thereby enabling depth adjustment to accommodate children of different heights.

[0038] It should be noted that V and VI in the embodiment are auxiliary blocks, and guide rods are welded on adjacent sides thereof, and sliding cooperation is achieved with I, IV and III respectively through the guide rods, so that they can follow and change synchronously when II, IV and III move.

[0039] In addition, in the embodiment, elastic nylon decorative cloth is provided at the junction of the buttocks portion 31 and the front portion 32 , and elastic nylon decorative cloth is provided at the junction of the central portion 33 and the side wing portion 34 .

[0040] In the above technology, the seat 3 with the keel 2 is designed to be movable and detachable from the wheelchair 1, so that the wheelchair 1 can be adapted for use by children.

[0041] In addition, the seat 3 is improved in the design so that it is divided into a depth adjustment group consisting of a hip seat portion 31 and a front portion 32, and a width adjustment group consisting of a center portion 33 and a side wing portion 34, so that the depth and width can be flexibly changed as needed to suit children of different heights and weights.

[0042] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable application-type wheelchair limiter, applied to a wheelchair (1), characterized in that: It also includes a seat (3) mounted on the keel (2); The keel (2) comprises: A frame base (21), the four corners of which are respectively provided with clamping pieces (22) capable of being clamped with the frame of the wheelchair (1); An auxiliary positioning rod (23) is assembled on the frame base (21) via a hinge and plugged into the top edge of the backrest of the wheelchair (1); the two auxiliary positioning rods (23) are flipped towards each other.

2. The adjustable application-type wheelchair limiting device according to claim 1, characterized in that: The seat (3) is divided into a buttocks seat portion (31) and a front portion (32) according to the structure. The buttocks seat portion (31) is slidably arranged on the frame base (21) and moves relative to the front portion (32).

3. The adjustable application-type wheelchair limiting device according to claim 2, characterized in that: A first transmission shaft (4) is rotatably arranged on the frame base (21); A first threaded rod (5) is rotatably provided on the front portion (32), and the first threaded rod (5) is threadedly assembled with a threaded sleeve (51) welded to the buttocks seat portion (31); The first transmission shaft (4) and the first threaded rod (5) are transmission connected via a trapezoidal gear set (6).

4. The adjustable application-type wheelchair limiting device according to claim 2, characterized in that: An elastic nylon decorative cloth is provided at the junction of the buttocks seat portion (31) and the front portion (32).

5. The adjustable application-type wheelchair limiting device according to claim 2, characterized in that: The seat (3) is further divided into a central portion (33) and wing portions (34) arranged symmetrically about the central portion (33) according to the structure; The side wing parts (34) are slidably arranged on the frame base (21) and move relative to the central part (33).

6. The adjustable application-type wheelchair limiting device according to claim 5, characterized in that: A double-ended threaded screw (7) is rotatably mounted on the frame base (21), and a threaded sleeve (51) threadably matched with the double-ended threaded screw (7) is fixedly mounted on the wing portion (34).

7. The adjustable application-type wheelchair limiting device according to claim 5, characterized in that: An elastic nylon decorative cloth is provided at the junction of the central portion (33) and the side wing portion (34).

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