Spring pull handle type pedal support positioning structure

Abstract

The utility model discloses a spring pull handle type pedal support positioning structure, and belongs to the field of support fixing. The utility model provides a spring pull handle type pedal support positioning structure, a main body is a fixing seat which is respectively connected with a pedal support and a wheelchair frame, the connecting part of the fixing seat and the wheelchair frame is fixed through a pull handle and a fixing pin, and the spring pull handle type pedal support positioning structure is simple in structure, convenient to operate and high in practicability. A user only needs to pull the pull handle to unlock the fixing pin from the wheelchair frame, the orientation and the height position of the pedal support are adjusted, and through the lever effect of the pull handle on the fixing pin, the user is more convenient and labor-saving when positioning of the pedal support and positioning of the wheelchair frame are separated.

Description

Technical Field

[0001] The utility model belongs to the field of bracket fixing, and in particular relates to a spring handle type pedal bracket positioning structure. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled to recover at home, be transported around, see a doctor, and go out for activities. Wheelchairs not only meet the needs of the physically disabled and those with limited mobility, but more importantly, they facilitate family members to move and take care of patients, and enable patients to exercise and participate in social activities with the help of wheelchairs.

[0003] An ordinary wheelchair is generally composed of a foldable frame, left and right side panels (skirt panels), front and rear wheels, left and right knee pads and foot pedals.

[0004] There are many types of footrests, including footrests that are separately set on the left and right sides, and a single integrated footrest that is set in the middle of the front of the wheelchair. Among them, the footrests that are separately set on the left and right sides can be divided into structures that are integrally formed with the frame and structures that allow the footrest and footrest bracket to be detached separately.

[0005] At present, the detachable footrest brackets on the market are usually installed with ordinary pull pins and used in conjunction with the fixing blocks set on the wheelchair frame. The footrest bracket can be rotated or removed by pulling out the pins. When the user gets off the wheelchair or sits on the wheelchair, the footrest can be rotated to both sides to reduce obstacles when getting in and out of the wheelchair. After the user sits on the wheelchair, the footrest can be reset and rotated back, and the lower limbs can be placed on the footrest.

[0006] Ordinary pull pins are small in size and are set at a low position, making it difficult for users to reach the pull pin when adjusting its position. In particular, when the user needs to get up from the wheelchair and rotate the foot pedal outward to open it, it is difficult to reach the pull pin while sitting in the wheelchair in a bent posture. Since the pull pin is also small in size, the user needs to resist the force of the spring in the pull pin when pulling it out. Its small size and inconvenient posture for pulling the pull pin make it more difficult and troublesome for the user to adjust the foot pedal position alone.

[0007] Therefore, a new design that allows users to adjust the foot pedal more easily is needed. Utility Model Content

[0008] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a spring-handle type pedal bracket positioning structure.

[0009] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0010] A spring-handle type pedal bracket positioning structure includes a pedal bracket and a wheelchair frame, and also includes a fixed seat, a handle and a fixing pin. The fixed seat is provided with two supports, which are respectively connected to the pedal bracket and the wheelchair frame. The part where the fixed seat is connected to the wheelchair frame is provided with a handle and a fixing pin. The handle is arranged on the side of the fixed seat, and the fixing pin is arranged inside the fixed seat. A connecting rod is arranged on the handle and is movably connected with the fixing pin. The fixing pin can be linked according to the movement of the handle, and a reset spring is arranged between the fixing pin and the fixed seat.

[0011] The overall structure of the fixing seat is a structure with a diagonal rod at one end of a horizontal rod. The diagonal rod part of the fixing seat is a hollow tubular structure and is connected to the footrest bracket. The end of the horizontal rod of the fixing seat without the diagonal rod is the fixed end of the wheelchair frame. The fixed end of the wheelchair bracket is provided with a handle and a fixing pin.

[0012] A fixing knob is arranged on the side of the inclined rod part, and the fixing knob comprises a rotating handle and an extrusion bolt. The extrusion bolt is arranged through the inclined rod part, and a rotating handle is arranged on the outer side of the inclined rod.

[0013] A handle groove and a fixing pin groove are arranged inside the fixed end of the wheelchair bracket. The handle groove is connected with the fixing pin groove. The fixing pin is arranged in the fixing pin groove. A return spring is arranged between the fixing pin and the fixing pin groove. The connecting rod passes through the handle groove and is connected with the fixing pin.

[0014] The connection part between the handle and the fixed seat is an E-shaped structure. The upper and lower brackets of the E-shaped structure are respectively connected to the upper surface and lower surface of the fixed seat through fixing bolts. The middle bracket of the E-shaped structure is a connecting rod. The handle can rotate relative to the fixing bolt and be linked with the fixing pin through the connecting rod.

[0015] The fixing pin is a columnar structure with a connecting groove on the side.

[0016] The connecting rod passes through the connecting groove and is movably connected with the fixing pin.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a positioning structure for a spring-pull type footrest bracket. The main body is a fixed seat that connects the footrest bracket and the wheelchair frame respectively. The connection part between the fixed seat and the wheelchair frame is fixed by a pull handle and a fixing pin. The structure of this device is simple and the operation is convenient. The user only needs to pull the pull handle to unlock the fixing pin from the wheelchair frame, and adjust the orientation and height position of the footrest bracket. Through the lever action of the pull handle on the fixing pin, it is more convenient and labor-saving for the user to separate the positioning of the footrest bracket and the wheelchair frame. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the utility model;

[0020] Figure 2 It is an exploded view of each component of the utility model;

[0021] Figure 3 It is a sectional view of the main perspective of the utility model;

[0022] Figure 4 It is a sectional view of the top perspective of the utility model;

[0023] In the figure: 1, fixed seat; 2, pull handle; 3, connecting rod; 4, fixing pin; 5, return spring; 6, fixing bolt; 7, fixing knob. Detailed Embodiment

[0024] The following further describes the utility model in combination with specific embodiments.

[0025] As Figure 1 、 Figure 2 and Figure 3 shown, the main body of the utility model is a "factory"-shaped fixed seat 1 composed of a horizontal bar structure and an inclined bar structure.

[0026] The horizontal bar of the fixed seat 1 is a support for connecting and fixing with the wheelchair frame, and the inclined bar connected to the horizontal bar is a support for connecting with the footrest bracket of the wheelchair.

[0027] The main body of the inclined bar part is a hollow tubular structure. A fixing knob 7 is arranged on the side of the inclined bar. The fixing knob 7 can be divided into two parts: a pressing bolt and a rotating handle. The pressing bolt is arranged through the pipe wall structure of the inclined bar. A rotating handle is arranged at one end of the pressing bolt facing the outside of the inclined bar. And an internal thread corresponding to the pressing bolt is arranged in the through hole through which the pipe wall penetrated by the pressing bolt. When in use, the user passes the bracket of the footrest through the hollow part inside the inclined bar, and then uses the fixing knob 7 to rotate and press the footrest bracket to fix the footrest bracket.

[0028] The crossbar portion of the fixing seat 1 is the main design point of the device. A handle 2 and a fixing pin 4 are arranged on the crossbar portion. A fixing pin groove and a handle groove are provided inside the crossbar portion. The fixing pin 4 is a columnar structure with a connecting groove in the middle portion. The fixing pin 4 is arranged in the fixing pin groove, and a return spring 5 is arranged between the fixing pin 4 and the fixing pin groove. Figure 3 shown.

[0029] The structure of the handle 2 is a pull plate that is convenient for hand pulling and an E-shaped connecting piece connected to the crossbar. The upper and lower brackets of the E-shaped structure are respectively installed on the upper and lower surfaces of the fixing base 1 through fixing bolts 6, and the handle 2 can rotate relative to each other at the connection points where the upper and lower parts of the E-shaped structure are directly installed through the fixing bolts 6. The bracket located in the middle part of the E-shaped structure serves as a connecting rod 3. The connecting rod 3 enters the interior of the fixing base 1 through the groove of the handle, and the connecting rod 3 passes through the connecting groove opened by the fixing pin 4. When the handle 2 is pulled and rotated, the connecting plate 3 will drive the fixing pin 4 to move at the same time under the movement of the handle 2, and the direction of movement is toward the inside of the fixing pin groove. Its structure is as follows: Figure 4 shown.

[0030] When the handle 2 is in the initial position, the end portion of the fixing pin 4 protrudes out of a portion of the fixing pin groove, matching the fixing device provided on the wheelchair frame, and fixing the fixing seat 1 and the pedal bracket connected to the fixing seat 1 to the wheelchair frame. Pulling the handle 2, the fixing pin 4 is retracted into the fixing pin groove through the linkage of the connecting rod 3. At this time, the fixing pin 4 no longer contacts the fixing device on the wheelchair frame, thereby contacting the fixing seat 1 relative to the wheelchair frame, and the fixing seat 1 can be adjusted in direction and height.

[0031] After the adjustment of the fixing seat 1 is completed, the handle 2 is pushed back to the original position, and the connecting rod 3 will also return to the initial position. However, the connection groove opened by the fixing pin 4 is longer than the contact part of the connecting rod. Even after the connecting rod 3 is reset, the fixing pin 4 will not be lifted to return to the position where the end of the fixing pin 4 is fixed to the wheelchair frame fixing device. At this time, the reset spring 5 is against the fixing pin 4, and the fixing pin 4 is against the outside of the wheelchair frame fixing device. The fixing seat 1 continues to adjust its position. After the fixing pin 4 is adjusted to the point corresponding to the wheelchair frame fixing device, the reset spring 5 pushes the fixing pin 4 to continue to move until the end of the fixing pin 4 enters the wheelchair frame fixing device, and the connection groove of the fixing pin 4 is limited by the connecting rod 3. At this point, the adjustment and reset of the fixing seat 1 is completed.

[0032] The utility model has a simple structure, and is mainly used to enable the user in the wheelchair to better unlock the pedal bracket when the user needs to get off the wheelchair, and to open the pedal bracket from the position directly in front of the wheelchair to the left and right sides, so that the user can get off the wheelchair. The method of use is simple, and the unlocking can be completed by simply pulling the handle 2, and the handle 2 is also provided with a pull plate for easy pulling. The connection part adopts an E-shaped structure, and two rotatable connection points are provided one above and one below. Even if the pull plate is pulled from different angles, there will be no uneven force at the connection to cause the handle 2 to get stuck. Compared with ordinary pull pins, the operation is simpler and more labor-saving.

Claims

1. A spring handle type footrest bracket positioning structure, comprising a wheelchair footrest bracket and a wheelchair frame, characterized in that: It also includes a fixed seat, a handle and a fixing pin. The fixed seat is provided with two supports, which are respectively connected to the footrest bracket and the wheelchair frame. The part where the fixed seat is connected to the wheelchair frame is provided with a handle and a fixing pin. The handle is provided on the side of the fixed seat, and the fixing pin is provided inside the fixed seat. A connecting rod is provided on the handle and is movably connected to the fixing pin. The fixing pin can be linked according to the movement of the handle, and a reset spring is provided between the fixing pin and the fixed seat.

2. A spring handle type pedal bracket positioning structure according to claim 1, characterized in that: The overall structure of the fixing seat is a structure with a diagonal rod at one end of a horizontal rod. The diagonal rod part of the fixing seat is a hollow tubular structure and is connected to the footrest bracket. The end of the horizontal rod of the fixing seat without the diagonal rod is the fixed end of the wheelchair frame. The fixed end of the wheelchair bracket is provided with a handle and a fixing pin.

3. A spring handle type pedal bracket positioning structure according to claim 2, characterized in that: A fixing knob is arranged on the side of the inclined rod part, and the fixing knob comprises a rotating handle and an extrusion bolt. The extrusion bolt is arranged through the inclined rod part, and a rotating handle is arranged on the outer side of the inclined rod.

4. The spring handle type pedal bracket positioning structure according to claim 2, characterized in that: A handle groove and a fixing pin groove are arranged inside the fixed end of the wheelchair bracket. The handle groove is connected with the fixing pin groove. The fixing pin is arranged in the fixing pin groove. A return spring is arranged between the fixing pin and the fixing pin groove. The connecting rod passes through the handle groove and is connected with the fixing pin.

5. The spring handle type pedal bracket positioning structure according to claim 4, characterized in that: The connection part between the handle and the fixed seat is an E-shaped structure. The upper and lower brackets of the E-shaped structure are respectively connected to the upper surface and lower surface of the fixed seat through fixing bolts. The middle bracket of the E-shaped structure is a connecting rod. The handle can rotate relative to the fixing bolt and be linked with the fixing pin through the connecting rod.

6. The spring handle type pedal bracket positioning structure according to claim 5, characterized in that: The fixing pin is a columnar structure with a connecting groove on the side.

7. The spring handle type pedal bracket positioning structure according to claim 6, characterized in that: The connecting rod passes through the connecting groove and is movably connected with the fixing pin.

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