CN210872568U

CN210872568U - Deep adjustment mechanism of wheelchair seat

Info

Publication number: CN210872568U
Application number: CN201921402613.2U
Authority: CN
Inventors: 王尔琪
Original assignee: Changzhou Zhongjin Medical Devices Co ltd
Current assignee: Changzhou Zhongjin Medical Devices Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-30
Anticipated expiration: 2029-08-27

Abstract

A wheelchair seat depth adjusting mechanism comprises a side tube arranged at the upper part of a wheelchair frame, wherein a cushion is arranged above the side tube; the side pipe is a hollow pipe, and a side pipe opening is arranged at the rear end of the side pipe; the back tube is provided with an inner inserting tube at the bottom, and the inner inserting tube is inserted into the side tube through the opening of the side tube. The number of different products produced by different seat depths can be reduced by manufacturers, so that the products are simplified, and the purpose of reducing cost is achieved. The user can adjust the sitting posture according to the timely adjustment of the self condition to reach the self optimal state, thereby being beneficial to the physical and mental health of the client and also reducing the use cost.

Description

Deep adjustment mechanism of wheelchair seat

Technical Field

The utility model relates to a wheelchair field, concretely relates to dark adjustment mechanism of wheelchair seat support.

Background

At present, the depth of a wheelchair seat is usually a fixed size, and a manufacturer needs to manufacture wheelchairs with different seat depth sizes in production so as to meet different seat depth requirements of users, adapt to different body types and adjust sitting postures. During manufacturing, the side aluminum pipe and the back aluminum pipe are integrally welded and cannot move relatively, and the change of the seat depth is realized by changing the length of the side aluminum pipe or the length of the seat cushion. Therefore, the seat depth is designed and manufactured by the manufacturer, the product types of the manufacturer are increased, and the customer cannot adjust the seat depth after purchasing the seat.

But to producer, the difference of seat depth needs to rely on producer to accomplish when design and production, and the same style wheelchair need produce a plurality of models because of the difference of seat depth to increased the product type, the product type is more, and management and control and technology are comparatively complicated during the manufacturing, are unfavorable for cost control. For a user, the sitting posture cannot be adjusted at any time by the fixed seat depth to achieve the optimal state of the user, the user cannot adjust the sitting posture by himself or herself after purchasing a wheelchair with a fixed size, and if the user wants to change the seat depth due to various factors in the future, the user needs to purchase a new wheelchair.

SUMMERY OF THE UTILITY MODEL

In view of the above circumstances, in order to solve the problems in the prior art, the present invention provides a wheelchair seat depth adjusting mechanism, which includes a side tube disposed at an upper portion of a wheelchair frame, wherein a cushion is disposed above the side tube; the side pipe is a hollow pipe, and a side pipe opening is arranged at the rear end of the side pipe; the back tube is provided with an inner inserting tube at the bottom, and the inner inserting tube is inserted into the side tube through the opening of the side tube.

Preferably, the outer diameter of the inner insert tube and the inner diameter of the side tube are in clearance fit or transition fit.

Preferably, the side tubes and inner tubes are square or round aluminum tubes.

Preferably, the back tube is a square or round aluminum tube.

Preferably, the wheelchair frame is provided with side pipes on two sides respectively, the back pipe is provided with inner insertion pipes at two ends of the bottom respectively, and the inner insertion pipes at two ends of the back pipe are inserted into the side pipes on two sides of the wheelchair frame respectively.

Preferably, the lower part of the side pipe is provided with a side pipe slot, and the side pipe slot extends to the opening of the side pipe. The slot is arranged to facilitate the in and out of the inner inserting tube, and the elastic restoring force at the slot can be used for holding the inner inserting tube tightly in use.

Preferably, the side pipe is further provided with a pipe clamp, and the pipe clamp is arranged at the groove of the side pipe. After insertion of the inner tube, the tube clamp can be tightened so that the side tube provided with the slot grips the inner tube more reliably, thereby fixing the position of the inner tube, i.e. the back tube, relative to the side tube to achieve an adjusted seat depth stabilization.

According to the wheelchair seat depth adjusting mechanism, the side aluminum pipe and the back aluminum pipe are separated into two parts, the back aluminum pipe is additionally provided with the inner inserting pipe with proper length at the original welding position of the side aluminum pipe, and the diameter of the inner inserting pipe is smaller than the inner diameter of the original side aluminum pipe, so that the inner inserting pipe can freely stretch out and draw back in the side aluminum pipe without obvious shaking.

According to the wheelchair seat depth adjusting mechanism, the lower part of the side aluminum pipe is grooved, and pipe clamps (or called hoops, pipe hoops, throat clamps and other parts with similar functions) are added at the pipe openings. The back aluminum tube with the inner inserting tube is inserted into the side aluminum tube, and the deep size of the inner inserting tube is fixed through the tube clamp so as to achieve the purpose of adjusting the seat depth.

After the technology provided by the utility model is adopted, according to the utility model discloses the dark adjustment mechanism of wheelchair seat has following beneficial effect:

1) the seat depth adjusting technology can reduce the number of different products produced by different seat depths for manufacturers, thereby simplifying the products and achieving the purpose of reducing cost.

2) Meanwhile, the seat depth adjusting technology can enable a user to adjust the seat depth timely according to the self condition to adjust the sitting posture so as to achieve the self optimal state, is beneficial to physical and mental health of a client, and can also reduce the use cost.

Drawings

FIG. 1 is a schematic diagram of a seat depth adjustment mechanism according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a partial view taken along the line a of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings. The described embodiments include various specific details to aid understanding, but they are to be construed as merely illustrative, and not restrictive of all embodiments of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. Meanwhile, in order to make the description more clear and concise, a detailed description of functions and configurations well known in the art will be omitted.

As shown in fig. 1-3, a wheelchair seat depth adjusting mechanism comprises a side tube 2 arranged at the upper part of a wheelchair frame 1, and a cushion 3 is arranged above the side tube 2; the side pipe 2 is a hollow pipe, and the rear end of the side pipe 2 is provided with a side pipe opening 20; further comprising a back tube 4, the bottom of said back tube 4 being provided with an inner cannula 5, said inner cannula 5 being inserted into the side tube 2 through said side tube opening 20.

Further, the outer diameter of the inner insert tube 5 and the inner diameter of the side tube 2 are in clearance fit or transition fit.

Further, the side tube 2 and the inner insertion tube 5 are square or circular aluminum tubes.

Further, the back tube 4 is a square or round aluminum tube.

Furthermore, side pipes 2 are respectively arranged on two sides of the wheelchair frame 1, inner insertion pipes 5 are respectively arranged at two ends of the bottom of the back pipe 4, and the inner insertion pipes 5 at two ends of the back pipe 4 are respectively inserted into the side pipes 2 on two sides of the wheelchair frame 1.

Further, the lower part of the side tube 2 is provided with a side tube slot 21, and the side tube slot 21 extends to the side tube opening 20. The slot is arranged to facilitate the in and out of the inner inserting tube, and the elastic restoring force at the slot can be used for holding the inner inserting tube tightly in use.

Further, a pipe clamp 6 is further arranged on the side pipe 2, and the pipe clamp 6 is arranged at the position of the side pipe slot 21. After insertion of the inner tube, the tube clamp can be tightened so that the side tube provided with the slot grips the inner tube more reliably, thereby fixing the position of the inner tube, i.e. the back tube, relative to the side tube to achieve an adjusted seat depth stabilization.

According to the wheelchair seat depth adjusting mechanism, the side aluminum pipe and the back aluminum pipe are separated to form two parts, the back aluminum pipe is additionally provided with the inner inserting pipe with proper length at the original welding position of the side aluminum pipe, and the diameter of the inner inserting pipe is smaller than the inner diameter of the original side aluminum pipe, so that the inner inserting pipe can freely stretch out and draw back in the side aluminum pipe without obvious shaking.

According to the wheelchair seat depth adjusting mechanism, the lower portion of the side aluminum tube is provided with the groove, and a tube clamp (or a hoop, a tube clamp, a throat clamp and other parts with similar functions) is added at the tube opening. The back aluminum tube with the inner inserting tube is inserted into the side aluminum tube, and the deep size of the inner inserting tube is fixed through the tube clamp so as to achieve the purpose of adjusting the seat depth.

According to a wheel chair seat depth adjusting mechanism of this application, can let the producer reduce the different kind product quantity of producing because of the seat is dark different through the seat depth adjustment technique to retrench the product, reach the purpose that falls this.

Meanwhile, the seat depth adjusting technology can enable a user to adjust the seat depth timely according to the self condition to adjust the sitting posture so as to achieve the self optimal state, is beneficial to physical and mental health of a client, and can also reduce the use cost.

The terms "upper", "lower" or "above", "below" or the like are used herein in a relative relationship with respect to a normal use in a placed state, i.e., a positional relationship as generally shown in the drawings of the present application. When the placement state changes, for example, when the placement state is turned over, the corresponding positional relationship should be changed accordingly to understand or implement the technical solution of the present application.

Claims

1. A wheelchair seat depth adjusting mechanism is characterized by comprising a side tube (2) arranged at the upper part of a wheelchair frame (1), wherein a cushion (3) is arranged above the side tube (2); the side pipe (2) is a hollow pipe, and a side pipe opening (20) is arranged at the rear end of the side pipe (2); the novel side tube is characterized by further comprising a back tube (4), wherein an inner inserting tube (5) is arranged at the bottom of the back tube (4), and the inner inserting tube (5) is inserted into the side tube (2) through the side tube opening (20).

2. A wheelchair seat depth adjustment mechanism as claimed in claim 1, wherein the outer diameter of the inner tube (5) is a clearance fit or transition fit with the inner diameter of the side tube (2).

3. A wheelchair seat depth adjustment mechanism as claimed in claim 1, wherein the side tubes (2) and inner tube (5) are square or round aluminium tubes.

4. A wheelchair seat depth adjustment mechanism as claimed in claim 1, wherein the back tube (4) is a square or round aluminium tube.

5. A wheelchair seat depth adjusting mechanism as claimed in claim 1, wherein the wheelchair frame (1) is provided with side tubes (2) at both sides thereof, the back tube (4) is provided with inner insertion tubes (5) at both ends thereof, and the inner insertion tubes (5) at both ends of the back tube (4) are inserted into the side tubes (2) at both sides of the wheelchair frame (1).

6. A wheelchair seat depth adjustment mechanism as claimed in any one of claims 1 to 5, wherein the lower part of the side tube (2) is provided with a side tube slot (21), the side tube slot (21) extending to a side tube opening (20).

7. A wheelchair seat depth adjusting mechanism as claimed in claim 6, wherein the side tube (2) is further provided with a pipe clamp (6), and the pipe clamp (6) is arranged at the groove (21) of the side tube.