CN211912029U

CN211912029U - Handrail flip structure for wheelchair

Info

Publication number: CN211912029U
Application number: CN202020309169.6U
Authority: CN
Inventors: 朱剑; 尹祎
Original assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Current assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-13
Anticipated expiration: 2030-03-13

Abstract

A handrail turnover structure for a wheelchair belongs to the technical field of daily necessities. Including a seat frame and a pair of handrail that rotationally sets up in the middle part of the seat frame left and right sides respectively, characteristics: the handrail respectively extend forward and respectively constitute in length direction's middle part below and have a connecting foot, the connecting foot on articulated have a sliding sleeve, the sliding sleeve in slide and be provided with a slide bar, the slide bar constitute in the one end that extends the sliding sleeve and have a return bend, the tip of this return bend articulates on the seat frame that corresponds the side, adjacent one side handrail, sliding sleeve, slide bar and seat frame between constitute triangle-shaped bearing structure. The advantages are that: the fixing and supporting strength of the handrail is increased, and the influence of the support on the rotation angle of the handrail is eliminated.

Description

Handrail flip structure for wheelchair

Technical Field

The utility model belongs to the technical field of daily life articles for use, concretely relates to handrail flip structure for wheelchair.

Background

The wheelchair plays an irreplaceable role in the daily life of human beings, and particularly for the old people with inconvenient legs and feet and the weak patients, the wheelchair can greatly relieve the pain and the fatigue caused by walking. At present, the variety of wheelchairs is various, and the wheelchairs gradually develop towards a portable folding type direction, wherein an armrest is one of essential parts in the wheelchairs, and mainly comprises three structural forms, namely a fixed armrest, a turnover armrest and a lifting armrest, wherein the fixed armrest and the lifting armrest are generally provided with a support for supporting under the armrest, and the support not only increases the fixing strength, but also can support larger weight; the rotating armrest is not provided with a bracket below the rotating armrest, because the bracket directly influences the rotating angle of the armrest, but the fixing strength and the supporting capability of the rotating armrest are influenced and reduced, and when the old and the patient support the armrest with force, the armrest is even broken, so that a serious potential safety hazard exists.

In view of the above, there is a need for a wheelchair armrest turning structure that is simple and inexpensive, and that can increase the strength of armrest support and the firmness of connection without hindering the rotation of the armrest. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

Disclosure of Invention

The utility model aims at providing a handrail flip structure for wheelchair helps improving the flip structure of handrail and strengthens the support intensity and the firm in connection of handrail, is favorable to eliminating the influence of linking bridge to handrail rotation angle.

In order to achieve the above purpose, the utility model provides a technical scheme is: the utility model provides a handrail flip structure for wheelchair, includes a seat frame and a pair of handrail that sets up at the seat frame left and right sides middle part respectively with rotating, the handrail respectively extend forward and respectively constitute in length direction's middle part below and have a connecting foot, the connecting foot on articulated have a sliding sleeve, the sliding sleeve in slide and be provided with a slide bar, the slide bar constitute and have a return bend in the one end that extends the sliding sleeve, the tip of this return bend articulates on the seat frame that corresponds the side, adjacent one side handrail, sliding sleeve, slide bar and seat frame between constitute triangle-shaped bearing structure.

In a specific embodiment of the present invention, the sliding sleeve is a hollow tubular structure, one end of the sliding sleeve is formed with a groove, the other end is an open end, and the middle is a sliding cavity, the connecting leg is disposed in the groove and hinged to the sliding sleeve through a shaft pin, the sliding rod is inserted into the sliding cavity from the open end of the sliding sleeve and can slide along the length direction of the sliding sleeve, when the armrest is turned downwards and unfolded, the sliding rod slides in the sliding cavity until the end of the open end of the sliding sleeve abuts against the bending part of the elbow.

In another specific embodiment of the present invention, the seat frame is provided with an armrest connecting seat at a position connected to the armrest, and the armrest connecting seat is fixed to the seat frame; the armrest is provided with an armrest rotating shaft at a position corresponding to the armrest connecting seat, and the armrest rotating shaft is rotatably connected with the armrest connecting seat.

In another specific embodiment of the present invention, the seat frame is formed with a elbow connecting seat at the elbow connection with the slide bar, the end of the elbow is provided with an elbow connecting shaft, and the elbow connecting shaft is rotatably connected to the elbow connecting seat.

In another specific embodiment of the present invention, the armrest is fixed with an armrest pad.

The utility model discloses owing to adopt behind the above-mentioned structure, beneficial effect who has: the handrail turnover structure adopts the matching of the sliding sleeve and the sliding rod and utilizes the bent pipe to support the sliding sleeve, so that the fixing and supporting strength of the handrail is greatly increased, and the influence of the support on the rotation angle of the handrail is eliminated.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a state diagram of the armrest of the present invention when it is turned downward and unfolded.

Fig. 3 is a state diagram of the armrest of the present invention when it is folded and turned upwards.

In the figure: 1. seat frame, 11, elbow connecting seat; 2. the armrest comprises an armrest body, a connecting foot 21, a connecting foot 22, a sliding sleeve 221, a groove 222, a sliding cavity 23, a sliding rod 231, an elbow pipe connecting shaft 232, an elbow pipe screw 233, an armrest connecting seat 24, an armrest connecting seat 241, an armrest rotating shaft 25, an armrest rotating shaft screw 251 and an armrest pad 26.

Detailed Description

The following is a detailed description by way of example, but the description of the example is not intended to limit the scope of the present invention, and any equivalent changes made according to the present invention, which are merely formal and insubstantial, should be considered as technical solutions of the present invention.

In the following description, any concept related to directionality or orientation of up, down, left, right, front, rear, and the like is based on the position shown in each drawing, and thus it should not be understood as a particular limitation to the technical solution provided by the present invention.

Referring to fig. 1, the present invention relates to a handrail turning structure for a wheelchair, including a seat frame 1 and a pair of handrails 2 rotatably disposed at the middle portions of the left and right sides of the seat frame 1, characterized in that: the armrest 2 extends forwards and is respectively formed with a connecting leg 21 below the middle part in the length direction, the connecting leg 21 is hinged with a sliding sleeve 22, the sliding sleeve 22 is slidably provided with a sliding rod 23, the sliding rod 23 is formed with a bent pipe 231 at one end extending out of the sliding sleeve 22, the end of the bent pipe 231 is hinged on the seat frame on the corresponding side, and a triangular supporting structure is formed between the armrest 2, the sliding sleeve 22, the sliding rod 23 and the seat frame 1 on the adjacent side. A handrail pad 26 is fixed to the handrail 2.

Further, the sliding sleeve 22 is a hollow tubular structure, one end of the sliding sleeve is formed with a groove 221, the other end is an open end, and the middle is a sliding cavity 222, the connecting leg 21 is disposed in the groove 221 and hinged to the sliding sleeve 22 through a shaft pin, the sliding rod 23 is inserted into the sliding cavity 222 from the open end of the sliding sleeve 22 and can slide along the length direction of the sliding sleeve 22, when the armrest 2 is turned and unfolded downward, the sliding rod 23 slides into the sliding cavity 222 until the end of the open end of the sliding sleeve 22 abuts against the bent portion of the bent pipe 231.

Further, the seat frame 1 is provided with an armrest connecting seat 24 at a position connected to the armrest 2, and the armrest connecting seat 24 is fixed to the seat frame 1 by an armrest connecting seat screw 241; the armrest 2 is provided with an armrest rotating shaft 25 at a position corresponding to the armrest connecting seat 24, and the armrest rotating shaft 25 is rotatably connected to the armrest connecting seat 24 through an armrest rotating shaft screw 251.

Furthermore, the seat frame 1 is provided with a bent tube connecting seat 11 at the connection position with the bent tube 231 of the slide rod 23, the end of the bent tube 231 is provided with a bent tube connecting shaft 232, and the bent tube connecting shaft 232 is rotatably connected with the bent tube connecting seat 11 through a bent tube screw 233.

Referring to fig. 1 in combination with fig. 2 and fig. 3, when the handrail 2 needs to be used, the handrail 2 is pulled to rotate counterclockwise around the handrail rotation shaft screw 251, the sliding rod 23 slides into the sliding sleeve 22 until the end of the opening end of the sliding sleeve 22 abuts against the bending position of the bending pipe 231, and at this time, the handrail 2 is unfolded and parallel to the horizontal reference plane (shown in fig. 2), and the sliding rod 23 and the sliding sleeve 22 are supported below the handrail 2 together, so that the fixing and supporting strength of the handrail 2 is greatly enhanced; when the armrest 2 is not needed to be used, the armrest 2 is pulled to rotate clockwise around the armrest rotating shaft screw 251, the sliding sleeve 22 is pulled by the armrest 2 to lift upwards, so that the sliding rod 23 slides out of the sliding sleeve 22, the sliding rod 23 and the bent pipe 231 are also folded upwards along with the rotation of the armrest 2 until the armrest 2 is in a folded state and is perpendicular to a horizontal reference plane (shown in fig. 3), and at this time, the sliding sleeve 22 and the sliding rod 23 do not affect the wheelchair user to do any operation.

Claims

1. The utility model provides a handrail flip structure for wheel chair, includes a seat frame (1) and a pair of handrail (2) that rotationally set up at seat frame (1) left and right sides middle part respectively, its characterized in that: handrail (2) respectively extend forward and respectively constitute in length direction's middle part below and have a connecting foot (21), connecting foot (21) on articulated have a sliding sleeve (22), sliding sleeve (22) in be provided with a slide bar (23) with sliding, slide bar (23) one end that extends sliding sleeve (22) constitute have a return bend (231), the tip of this return bend (231) articulates on the seat frame that corresponds the side, adjacent one side handrail (2), sliding sleeve (22), slide bar (23) and seat frame (1) between constitute triangle-shaped bearing structure.

2. The armrest turning structure for the wheelchair as claimed in claim 1, wherein the sliding sleeve (22) is a hollow tubular structure, one end of which is formed with a groove (221), the other end of which is an open end, and the middle of which is a sliding cavity (222), the connecting leg (21) is disposed in the groove (221) and hinged to the sliding sleeve (22) through a pin, the sliding rod (23) is inserted into the sliding cavity (222) from the open end of the sliding sleeve (22) and can slide along the length direction of the sliding sleeve (22), and when the armrest (2) is turned and unfolded downwards, the sliding rod (23) slides into the sliding cavity (222) until the open end of the sliding sleeve (22) abuts against the bending part of the elbow pipe (231).

3. The armrest turning structure for the wheelchair as claimed in claim 1, wherein the seat frame (1) is provided with an armrest coupling seat (24) at a position where the armrest (2) is coupled, the armrest coupling seat (24) being fixed to the seat frame (1); the armrest (2) is provided with an armrest rotating shaft (25) at a position corresponding to the armrest connecting seat (24), and the armrest rotating shaft (25) is rotatably connected with the armrest connecting seat (24).

4. The armrest turning structure for wheelchair as claimed in claim 1, wherein said seat frame (1) is formed with an elbow connecting seat (11) at the connection with an elbow (231) of said slide rod (23), an elbow connecting shaft (232) is provided at the end of said elbow (231), said elbow connecting shaft (232) is rotatably connected with said elbow connecting seat (11).

5. The armrest turning structure for wheelchair as claimed in claim 1, wherein an armrest pad (26) is fixed to the armrest (2).