Movable leg for adjustable wheelchair

Abstract

The utility model discloses an adjustable movable leg for a wheelchair, which comprises a supporting leg, the supporting leg is connected with a screw rod through a first bearing, and the end part of the screw rod is fixedly provided with an adjusting knob; the screw joint block is in screw joint with the outer side of the screw rod, and the rear side of the screw joint block is fixedly connected with a sliding strip; the first hinge block is fixedly installed on the rear side of the sliding strip, and the second hinge block is fixedly installed on the rear side of the supporting leg. The pedal is hinged to the first hinge block, and the movable rod is hinged between the pedal and the second hinge block. The connecting rods are fixedly connected to the side faces of the supporting legs, mounting assemblies are mounted at the ends of the connecting rods, and each mounting assembly comprises a first mounting ring, a second mounting ring, a stud, a rotating button, a spring, a moving block, a pull ring and a butt joint block; and the fixed cylinder is fixedly mounted in the second mounting ring. The product is convenient and fast to mount and dismount, and the angle of the pedal is adjustable, so that the comfort of a user during use can be improved, and the adjustment is very convenient.

Description

Technical Field

[0001] The utility model relates to the field of movable legs, in particular to a movable leg for an adjustable wheelchair. Background Art

[0002] The movable leg installed on the wheelchair usually has a pedal, which can support the user's feet. Patent application No. 2012205739887 discloses a movable leg for a wheelchair, including a pedal, a bracket tube, a leg support tube, a leg support tube and a front support tube. The pedal is connected to the bracket tube through a gasket and a nut. The leg support tube is equipped with a lock buckle, and the lock buckle and the elastic pin are connected through a spring. The leg support tube is equipped with a guide column, and the guide column is fixed to the leg support tube through an elastic pin. It has the following advantages: the movable leg of the wheelchair is easy to disassemble, the production cost is low, it is easy to manufacture, and it is easy to operate.

[0003] However, the patented product was found to still have the following defects during actual use: the angle of the pedal is very troublesome to adjust, which causes inconvenience in use. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an adjustable wheelchair with movable legs, which is easy and quick to install and disassemble, and the angle of the pedal is adjustable, which can improve the comfort of the user when using it, and is very convenient to adjust.

[0005] According to the technical solution provided in the embodiment of the present application, an adjustable movable leg for a wheelchair comprises a support leg, wherein the support leg is connected to a screw rod through a first bearing, and an adjustment button is fixedly installed at the end of the screw rod; the support leg is a tilting structure;

[0006] A screw connection block, the screw connection block is screwed on the outside of the screw rod, and a sliding bar is fixedly connected to the rear side of the screw connection block; a sliding opening is provided on the rear side of the support leg, and the sliding bar is located in the sliding opening;

[0007] The first hinge block is fixedly mounted on the rear side of the sliding bar, and the second hinge block is fixedly mounted on the rear side of the supporting leg; the rear sides of the first hinge block and the second hinge block are both fixedly connected with a first hinge shaft;

[0008] The pedal is hinged to the first hinge block, and the movable rod is hinged between the pedal and the second hinge block; the front side of the pedal is fixedly connected with a second hinge shaft;

[0009] A connecting rod, wherein the connecting rod is fixedly connected to the side of the supporting leg, and a mounting assembly is installed at the end of the connecting rod, and the mounting assembly includes a first mounting ring, a second mounting ring, a stud, a rotating button, a spring, a moving block, a pull ring and a docking block; the second mounting ring is fixedly installed at the end of the connecting rod, the stud is screwed on the side of the second mounting ring, and a screw sleeve matching the stud is fixedly installed on the side of the second mounting ring, one end of the stud is connected to the first mounting ring through a second bearing, and the sides of the first mounting ring and the second mounting ring are both bonded with anti-skid pads, and the side of the anti-skid pad is provided with an opening corresponding to the stud, the rotating button is fixedly installed at the other end of the stud, the spring is connected between the second mounting ring and the moving block, the interior of the second mounting ring is provided with a mounting groove, the spring and the fixing cylinder are located in the mounting groove, the pull ring is fixedly installed on one side of the moving block, and the docking block is fixedly installed on the other side of the moving block, the interior of the first mounting ring is provided with a docking groove, and the docking block is located in the docking groove;

[0010] A fixed cylinder, wherein the fixed cylinder is fixedly installed inside the second mounting ring, a sliding column is slidably installed inside the fixed cylinder, a sliding ring is fixedly installed on the outside of the sliding column, a limiting ring is fixedly installed inside the fixed cylinder, there are two limiting rings, the sliding ring is located between the upper and lower limiting rings, the sliding ring is in sliding contact with the inner wall of the fixed cylinder, the sliding column is in sliding contact with the limiting ring, and the end of the sliding column is fixedly connected to the moving block.

[0011] In summary, the beneficial effects of this application are:

[0012] 1. The installation and disassembly of this product is convenient and quick through the installation of the installation components, fixed cylinder, sliding column, sliding ring and limit ring;

[0013] 2. Through the arrangement of the supporting legs, the screw rod, the adjusting button, the screw block, the sliding bar, the first hinge block, the second hinge block, the pedal and the movable rod, the angle of the pedal can be adjusted, which can improve the comfort of the user during use and is very convenient to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a rear view structural diagram of the connection between the support leg, the screw rod, the adjustment button, the first hinge block and the second hinge block of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the movable rod of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the pedal of the utility model;

[0019] Figure 5 It is a schematic diagram of the top view of the connection between the screw block, the sliding bar and the first hinge block of the utility model;

[0020] Figure 6 It is a schematic diagram of the top view of the connection between the connecting rod and the mounting assembly of the utility model;

[0021] Figure 7 It is a bottom view structural diagram of the connection between the spring, the moving block, the docking block, the fixing cylinder, the sliding column and the limiting ring of the utility model;

[0022] Figure 8 It is a structural schematic diagram of the connection between the fixed cylinder, the sliding column, the sliding ring and the limiting ring of the utility model.

[0023] Numbers in the figure: 1. Support leg; 2. Screw; 3. Adjustment button; 4. Screw block; 5. Sliding bar; 6. First hinge block; 7. Second hinge block; 8. Pedal; 9. Movable rod; 10. Connecting rod; 11. Mounting assembly; 12. First mounting ring; 13. Second mounting ring; 14. Stud; 15. Turning button; 16. Spring; 17. Moving block; 18. Pull ring; 19. Docking block; 20. Fixed cylinder; 21. Sliding column; 22. Sliding ring; 23. Limiting ring. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Please refer to Figure 1-Figure 8, an adjustable wheelchair movable leg, comprising a support leg 1, the support leg 1 is connected to a screw rod 2 through a first bearing, an adjusting button 3 is fixedly installed at the end of the screw rod 2; a screw block 4, the screw block 4 is screwed on the outside of the screw rod 2, and a sliding bar 5 is fixedly connected to the rear side of the screw block 4; a first hinge block 6 is fixedly installed on the rear side of the sliding bar 5, and a second hinge block 7 is fixedly installed on the rear side of the support leg 1; a pedal 8 is hinged to the first hinge block 6, and a movable rod 9 is hinged between the pedal 8 and the second hinge block 7; a connecting rod 10, the connecting rod 11 is fixedly installed on the rear side of the sliding bar 5, and a second hinge block 7 is fixedly installed on the rear side of the support leg 1; The connecting rod 10 is fixedly connected to the side of the supporting leg 1, and a mounting assembly 11 is installed at the end of the connecting rod 10, and the mounting assembly 11 includes a first mounting ring 12, a second mounting ring 13, a stud 14, a rotating button 15, a spring 16, a moving block 17, a pull ring 18 and a docking block 19; a fixed cylinder 20, the fixed cylinder 20 is fixedly installed inside the second mounting ring 13, a sliding column 21 is slidably installed inside the fixed cylinder 20, a sliding ring 22 is fixedly installed on the outside of the sliding column 21, and a limiting ring 23 is fixedly installed inside the fixed cylinder 20.

[0027] like Figure 1-Figure 5 As shown, the support leg 1 is an inclined structure, and a sliding opening is provided on the rear side of the support leg 1 to facilitate the sliding of the sliding bar 5, and the sliding bar 5 is located in the sliding opening. The rear side of the first hinge block 6 and the rear side of the second hinge block 7 are both fixedly connected to a first hinge shaft, and the front side of the pedal 8 is fixedly connected to a second hinge shaft.

[0028] like Figure 1 , Figure 6 and Figure 7 As shown, the second mounting ring 13 is fixedly mounted on the end of the connecting rod 10, the stud 14 is screwed on the side of the second mounting ring 13, and a screw sleeve matching the stud 14 is fixedly mounted on the side of the second mounting ring 13, which facilitates the screwing of the stud 14. One end of the stud 14 is connected to the first mounting ring 12 through a second bearing, and the sides of the first mounting ring 12 and the second mounting ring 13 are both bonded with anti-skid pads, and the side of the anti-skid pad is provided with an opening corresponding to the stud 14. The rotating button 15 is fixedly mounted on the other end of the stud 14, the spring 16 is connected between the second mounting ring 13 and the moving block 17, the second mounting ring 13 is provided with a mounting groove inside, the spring 16 and the fixing cylinder 20 are located in the mounting groove, the pull ring 18 is fixedly mounted on one side of the moving block 17, the docking block 19 is fixedly mounted on the other side of the moving block 17, the first mounting ring 12 is provided with a docking groove inside, which facilitates the insertion of the docking block 19, and the docking block 19 is located in the docking groove.

[0029] like Figure 7 and Figure 8 As shown, there are two limit rings 23, the sliding ring 22 is located between the upper and lower limit rings 23, the sliding ring 22 is in sliding contact with the inner wall of the fixed cylinder 20, the sliding column 21 is in sliding contact with the limit ring 23, and the end of the sliding column 21 is fixedly connected to the moving block 17.

[0030] When in use: first install the front support tube on the wheelchair (please refer to the front support tube disclosed in patent application No. 2012205739887), then pull the pull ring 18 of the installation assembly 11, stretch the spring 16, and move the docking block 19 out of the docking groove of the first installation ring 12, and then turn the rotating button 15, the rotating button 15 will drive the stud 14 to rotate, and the stud 14 will drive the first installation ring 12 away from the second installation ring 13, and then the first installation ring 12 and the second installation ring 13 are located between the front support tube, pull the pull ring 18, and turn the reverse direction. By turning the knob 15, the first mounting ring 12 and the second mounting ring 13 can be clamped on the outside of the front support tube, and then the pull ring 18 is released, the spring 16 will be reset, driving the docking block 19 to be inserted into the docking groove of the first mounting ring 12, thereby completing the installation of the product, making installation and disassembly convenient and quick, and then turning the adjusting knob 3, the adjusting knob 3 will drive the screw rod 2 to rotate, the screw rod 2 will drive the screw block 4 to move, and the screw block 4 will adjust the angle of the pedal 8 when it moves, which can improve the user's comfort when using it, and it is very convenient to adjust.

[0031] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.

Claims

1. An adjustable wheelchair with movable legs, characterized by: It comprises a support leg (1), wherein the support leg (1) is connected to a screw rod (2) via a first bearing, and an adjusting button (3) is fixedly mounted on the end of the screw rod (2); A screw-connecting block (4), wherein the screw-connecting block (4) is screw-connected to the outer side of the screw rod (2), and a sliding bar (5) is fixedly connected to the rear side of the screw-connecting block (4); The first hinge block (6) is fixedly mounted on the rear side of the sliding bar (5), and the second hinge block (7) is fixedly mounted on the rear side of the supporting leg (1); The pedal (8) is hinged to the first hinge block (6), and the movable rod (9) is hinged between the pedal (8) and the second hinge block (7); A connecting rod (10), the connecting rod (10) being fixedly connected to the side of the supporting leg (1), the end of the connecting rod (10) being provided with a mounting assembly (11), the mounting assembly (11) comprising a first mounting ring (12), a second mounting ring (13), a stud (14), a rotating knob (15), a spring (16), a moving block (17), a pull ring (18) and a docking block (19); A fixed cylinder (20), the fixed cylinder (20) is fixedly mounted inside the second mounting ring (13), a sliding column (21) is slidably mounted inside the fixed cylinder (20), a sliding ring (22) is fixedly mounted outside the sliding column (21), and a limiting ring (23) is fixedly mounted inside the fixed cylinder (20).

2. The movable leg for an adjustable wheelchair according to claim 1, characterized in that: The support leg (1) is an inclined structure, a sliding opening is provided on the rear side of the support leg (1), and the sliding bar (5) is located in the sliding opening.

3. The movable leg for an adjustable wheelchair according to claim 1, characterized in that: The rear sides of the first hinge block (6) and the second hinge block (7) are both fixedly connected to a first hinge shaft, and the front side of the pedal (8) is fixedly connected to a second hinge shaft.

4. The movable leg for an adjustable wheelchair according to claim 1, characterized in that: The second mounting ring (13) is fixedly mounted on the end of the connecting rod (10), the stud (14) is screwed on the side of the second mounting ring (13), a screw sleeve matching the stud (14) is fixedly mounted on the side of the second mounting ring (13), one end of the stud (14) is connected to the first mounting ring (12) via a second bearing, and the sides of the first mounting ring (12) and the second mounting ring (13) are both bonded with anti-skid pads, and the sides of the anti-skid pads are provided with openings corresponding to the studs (14).

5. The movable leg for an adjustable wheelchair according to claim 1, characterized in that: The rotating button (15) is fixedly mounted on the other end of the stud (14); the spring (16) is connected between the second mounting ring (13) and the moving block (17); a mounting groove is provided inside the second mounting ring (13); the spring (16) and the fixing tube (20) are located in the mounting groove; the pull ring (18) is fixedly mounted on one side of the moving block (17); the docking block (19) is fixedly mounted on the other side of the moving block (17); a docking groove is provided inside the first mounting ring (12); and the docking block (19) is located in the docking groove.

6. The movable leg for an adjustable wheelchair according to claim 1, characterized in that: There are two limit rings (23) in total. The sliding ring (22) is located between the upper and lower limit rings (23). The sliding ring (22) is in sliding contact with the inner wall of the fixed cylinder (20). The sliding column (21) is in sliding contact with the limit ring (23). The end of the sliding column (21) is fixedly connected to the moving block (17).

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