Pedal mounting structure and wheelchair thereof

Abstract

The utility model provides an installation structure of a pedal and a wheelchair thereof, and relates to the technical field of wheelchairs. The installation structure comprises an installation pipe and a pedal assembly. A clamping structure is formed between the pedal assembly and the mounting pipe and used for detachably connecting the pedal assembly to the mounting pipe. The clamping structure comprises a fixing assembly located on the outer side face of the installation pipe and a connecting inserting piece located at the end of the pedal assembly, the connecting inserting piece and the fixing assembly are correspondingly used in a matched mode, and the connecting inserting piece is inserted into the fixing assembly and rotates to be clamped and fixed. The fixing assemblies are located on the two sides of the mounting pipe. The pedal assembly has the advantages that the connecting inserting piece is matched with the fixing assembly, the installation pipe and the pedal assembly are fixedly connected, the structure is firm, installation is convenient, when a user needs to disassemble the pedal assembly, the user does not need to find a disassembling tool, the user only needs to rotate the pedal assembly upwards to enable the connecting inserting piece and the fixing assembly to be separated from the clamping state, and the user can disassemble the pedal assembly conveniently. Therefore, the speed of dismounting the pedal assembly is increased, and the dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to an installation structure of a foot pedal and a wheelchair thereof. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is divided into electric and manual folding wheelchairs. It is an important means of transportation for the injured, sick, and disabled to recover at home, transport, see a doctor, and go out for activities. The pedal structure is an important component of the wheelchair. Although the existing production process of the pedal structure is becoming more mature, there are still some shortcomings that need to be improved.

[0003] In the prior art, the technical solution of the Chinese patent document (Announcement No.: CN212997089U, Patent Name: An Improved Wheelchair Quick-Release Footrest Structure) discloses that "it includes a front frame, a rear frame is connected to the rear of the front frame, a seat is connected to the upper part of the front frame and the rear frame, a support frame is connected to the lower part of the front frame and the rear frame, a footrest is arranged on the side of the front frame away from the support frame, and footrest connecting tubes are arranged at both ends of the side of the footrest close to the front frame, the bottom ends of the two footrest connecting tubes are connected to the footrest and the top ends of the two footrest connecting tubes are connected to the front frame by hexagon socket semicircular head screws, and the ends of the four hexagon socket semicircular head screws away from the nuts are threadedly connected with hexagonal nylon self-locking nuts, and the bottom ends of the front frame and the rear frame are connected to moving wheels."

[0004] According to the description and drawings of the patent document, the pedal connecting tube is fixed to the front frame by a hexagonal nylon self-locking nut and a hexagonal semi-circular head screw. To remove the pedal connecting tube from the wheelchair, it is necessary to use a tool to twist the hexagonal nylon self-locking nut to disengage the hexagonal semi-circular head screw, and then use a tool to twist the hexagonal semi-circular head screw. The disassembly is not quick and convenient. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art, provides a foot pedal installation structure and a wheelchair thereof, and effectively improves the disassembly efficiency of the foot pedal assembly.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] A pedal mounting structure comprises a mounting tube and a pedal assembly; a snap-fit ​​structure is formed between the pedal assembly and the mounting tube for detachably connecting the pedal assembly to the mounting tube; the snap-fit ​​structure comprises a fixing assembly located on the outer side of the mounting tube and a connecting plug-in located at the end of the pedal assembly, the connecting plug-in is used in conjunction with the fixing assembly, the connecting plug-in is inserted into the fixing assembly and rotated to be snap-fitted and fixed.

[0008] Furthermore, the fixing assembly is located on both sides of the mounting tube; the fixing assembly includes a fixing part and a supporting part, an insertion position is reserved between the fixing part and the supporting part, and snap-in plates are formed on both sides of the connecting plug-in, a first snap-in position is arranged above the snap-in plate, and a second snap-in position is arranged below the snap-in plate, and when the snap-in plate is inserted into the insertion position and rotated, the fixing part is snapped into the first snap-in position, and the supporting part is snapped into the second snap-in position.

[0009] Furthermore, the middle part of the connecting plug is surrounded to form a sleeve, the clamping pieces are located on both sides of the sleeve, the shape of the mounting tube matches the shape of the sleeve, and when the connecting plug is clamped and fixed on the mounting tube, the sleeve wraps around and connects to the mounting tube.

[0010] Furthermore, the pedal assembly includes a connecting pipe, one end of which is connected to the connecting plug-in, and the other end of the connecting pipe is provided with a pedal.

[0011] Furthermore, the center line of the fixing member and the supporting member is perpendicular to the horizontal plane; when the connecting plug is inserted and assembled into the fixing assembly, the fixing member and the supporting member form a reverse force on the connecting plug to limit the pedal assembly from rotating by itself under the action of gravity.

[0012] A wheelchair comprises a mounting structure for a footrest as described in any one of the above; the mounting pipe serves as an armrest of the wheelchair.

[0013] Furthermore, it includes a backrest and a seat cushion, the mounting tubes are arranged on both sides of the seat cushion, backrest frames are arranged on both sides of the backrest, one end of the mounting tube is connected to the backrest frame, the other end of the mounting tube is arranged with a front wheel, and the locking structure is arranged above the front wheel.

[0014] Furthermore, a handle is provided at the upper end of the backrest frame, and a rear wheel is provided at the lower end of the backrest frame.

[0015] Furthermore, a seat cushion tube is arranged between the mounting tube and the backrest frame, and the seat cushion is arranged on the seat cushion tube.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The mounting tube and the pedal assembly are fixedly connected by the cooperation between the connecting plug-in and the fixing assembly. The structure is firm and the installation is convenient. When the user needs to disassemble the pedal assembly, there is no need to look for disassembly tools. The user only needs to rotate the pedal assembly upward to disengage the connecting plug-in and the fixing assembly from the engaging state, thereby speeding up the disassembly of the pedal assembly and improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a general diagram of the installation structure of the foot pedal of the embodiment of the utility model;

[0020] Figure 2 It is an embodiment of the utility model Figure 1 Enlarged view of the middle circle A;

[0021] Figure 3 This is a diagram showing the installation tube and the pedal assembly being separated from each other in an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a mounting pipe according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of a connection plug-in according to an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of a wheelchair according to an embodiment of the present utility model.

[0025] In the figure: 1-mounting tube, 101-fixing assembly, 1011-fixing part, 1012-supporting part, 1013-insertion position, 2-pedal assembly, 201-connecting plug-in, 2011-clamping piece, 2012-first clamping position, 2013-second clamping position, 2014-cover, 202-connecting tube, 203-pedal, 3-backrest, 4-seat cushion, 5-backrest frame, 6-front wheel, 7-handlebar, 8-rear wheel, 9-seat cushion tube. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] like Figure 1 to Figure 2 As shown, a pedal installation structure includes a mounting tube 1 and a pedal assembly 2; a snap-fit ​​structure is formed between the pedal assembly 2 and the mounting tube 1, which is used to detachably connect the pedal assembly 2 to the mounting tube 1; the snap-fit ​​structure includes a fixing assembly 101 located on the outer side of the mounting tube 1 and a connecting plug-in 201 located at the end of the pedal assembly 2, the connecting plug-in 201 is used in conjunction with the fixing assembly 101, and the connecting plug-in 201 is inserted into the fixing assembly 101 and rotated to be snap-fitted and fixed.

[0028] The mounting tube 1 is a flat tube, and the fixing components 101 are located on both sides of the mounting tube 1; the middle part of the connecting plug-in 201 is surrounded to form a sleeve 2014, and the shape of the mounting tube 1 matches the shape of the sleeve 2014. When the connecting plug-in 201 is snap-fitted and fixed to the mounting tube 1, the sleeve 2014 is wrapped and connected to the mounting tube 1. The connecting plug-in 201 cooperates with the fixing component 101 to achieve a fixed connection between the mounting tube 1 and the pedal component 2. The structure is firm and the installation is convenient. When the user needs to disassemble the pedal component 2, there is no need to look for disassembly tools, but only needs to rotate the pedal component 2 upward to disengage the connecting plug-in 201 from the fixing component 101, thereby speeding up the disassembly of the pedal component 2 and improving the disassembly efficiency.

[0029] Specifically, Figures 3 to 5 As shown, the fixing component 101 includes a fixing member 1011 and a supporting member 1012, an insertion position 1013 is reserved between the fixing member 1011 and the supporting member 1012, and snap-in plates 2011 are formed on both sides of the connecting plug-in 201, a first snap-in position 2012 is arranged above the snap-in plate 2011, and a second snap-in position 2013 is arranged below the snap-in plate 2011, when the snap-in plate 2011 is inserted into the insertion position 1013 and rotated, the fixing member 1011 is snapped into the first snap-in position 2012, and the supporting member 1012 is snapped into the second snap-in position 2013.

[0030] The pedal assembly 2 includes a connecting tube 202, one end of which is connected to the connecting plug-in 201, and the other end of the connecting tube 202 is provided with a foot pedal 203, which is convenient for the user to place his feet when sitting on the wheelchair.

[0031] The fixing member 1011 fixes the engaging piece 2011, and the supporting member 1012 supports the engaging piece 2011. When installing the pedal assembly 2, it is only necessary to align the engaging piece 2011 with the insertion position 1013 and insert it, and then rotate the connecting tube 202 downward to make the engaging piece 2011 rotate upward at the insertion position 1013, so that the fixing member 1011 is engaged with the first engaging position 2012, and the supporting member 1012 is engaged with the second engaging position 2013. When disassembling the pedal assembly 2, it is only necessary to rotate the connecting tube 202 upward to make the engaging piece 2011 rotate downward at the insertion position 1013, so that the fixing member 1011 and the first engaging position 2012 are disengaged, and the supporting member 1012 and the second engaging position 2013 are disengaged.

[0032] The center line between the fixing member 1011 and the supporting member 1012 on the same side is perpendicular to the horizontal plane; when the connecting plug-in 201 is inserted and assembled into the fixing component 101, the fixing member 1011 and the supporting member 1012 form a reverse force on the connecting plug-in 201 to limit the pedal component 2 from rotating by itself under the action of gravity, thereby making the connection structure between the pedal component 2 and the mounting tube 1 more stable and the locking effect better.

[0033] like Figure 6 As shown, a wheelchair is shown, in which a mounting tube is used as an armrest frame of the wheelchair, including a backrest 3 and a seat cushion 4, a mounting tube 1 is arranged on both sides of the seat cushion 4, backrest frames 5 are arranged on both sides of the backrest 3, one end of the mounting tube 1 is connected to the backrest frame 5, and a front wheel 6 is arranged at the other end of the mounting tube 1, and a clamping structure is arranged above the front wheel 6, a handle 7 is arranged at the upper end of the backrest frame 5, and a rear wheel 8 is arranged at the lower end of the backrest frame 5, a seat cushion tube 9 is arranged between the mounting tube 1 and the backrest frame 5, and the seat cushion 4 is arranged on the seat cushion tube 9. When the wheelchair needs to be moved, it only needs to hold the handle 7, and the wheelchair can be driven to move through the front wheel 5 and the rear wheel 6.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mounting structure for a foot pedal, characterized in that: The invention comprises a mounting tube (1) and a pedal assembly (2); a snap-fit ​​structure is formed between the pedal assembly (2) and the mounting tube (1) for detachably connecting the pedal assembly (2) to the mounting tube (1); the snap-fit ​​structure comprises a fixing assembly (101) located on the outer side of the mounting tube (1) and a connecting plug-in (201) located at the end of the pedal assembly (2); the connecting plug-in (201) and the fixing assembly (101) are used in a corresponding manner; the connecting plug-in (201) is inserted into the fixing assembly (101) and rotated to be snap-fitted and fixed.

2. The mounting structure of the foot pedal according to claim 1, characterized in that: The fixing assembly (101) is located on both sides of the installation tube (1); the fixing assembly (101) comprises a fixing member (1011) and a supporting member (1012); an insertion position (1013) is reserved between the fixing member (1011) and the supporting member (1012); a clamping piece (2011) is formed on both sides of the connecting plug (201); a first clamping position (2012) is arranged above the clamping piece (2011); a second clamping position (2013) is arranged below the clamping piece (2011); when the clamping piece (2011) is inserted into the insertion position (1013) and rotated, the fixing member (1011) is clamped into the first clamping position (2012), and the supporting member (1012) is clamped into the second clamping position (2013).

3. The mounting structure of the foot pedal according to claim 2, characterized in that: The middle part of the connecting plug (201) is surrounded to form a sleeve (2014), the clamping pieces (2011) are located on both sides of the sleeve (2014), the shape of the mounting tube (1) matches the shape of the sleeve (2014), and when the connecting plug (201) is clamped and fixed on the mounting tube (1), the sleeve (2014) wraps around and connects to the mounting tube (1).

4. The mounting structure of the foot pedal according to claim 3, characterized in that: The pedal assembly (2) comprises a connecting pipe (202), one end of the connecting pipe (202) is connected to the connecting plug-in (201), and the other end of the connecting pipe (202) is provided with a pedal (203).

5. The mounting structure of the foot pedal according to claim 2, characterized in that: The center line of the fixing member (1011) and the supporting member (1012) is perpendicular to the horizontal plane; when the connecting plug-in (201) is inserted and assembled into the fixing assembly (101), the fixing member (1011) and the supporting member (1012) form a reverse force on the connecting plug-in (201) to limit the pedal assembly (2) from rotating automatically under the action of gravity.

6. A wheelchair, characterized in that: A footrest mounting structure comprising any one of claims 1 to 5; the mounting tube (1) is used as an armrest of a wheelchair.

7. The wheelchair according to claim 6, characterized in that: The invention comprises a backrest (3) and a seat cushion (4), wherein the mounting tube (1) is arranged on both sides of the seat cushion (4), backrest frames (5) are arranged on both sides of the backrest (3), one end of the mounting tube (1) is connected to the backrest frame (5), the other end of the mounting tube (1) is arranged with a front wheel (6), and the engaging structure is arranged above the front wheel (6).

8. The wheelchair according to claim 7, characterized in that: The upper end of the backrest frame (5) is provided with a handle (7), and the lower end of the backrest frame (5) is provided with a rear wheel (8).

9. The wheelchair according to claim 8, characterized in that: A seat cushion tube (9) is arranged between the mounting tube (1) and the backrest frame (5), and the seat cushion (4) is arranged on the seat cushion tube (9).

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