Assembling device for bicycle crank

Abstract

The utility model relates to the technical field of bicycles, and discloses a bicycle crank assembling device which comprises a frame and a workbench, the workbench is fixedly installed between the inner walls of the frame, a first air cylinder is fixedly installed on the inner wall of the top of the frame, and the output end of the first air cylinder is fixedly connected with a pressing plate. A first movable groove and a second movable groove are formed in the top of the workbench, a fixing assembly and a clamping assembly are arranged on the top of the workbench, and the clamping assembly comprises a motor fixedly installed on one side of the inner wall of a second sliding groove; the guide rod is fixedly installed between the inner walls of the second sliding grooves. The wheel disc is placed on the top of the supporting plate, the round hole of the wheel disc is aligned with the round hole of the supporting plate, if the wheel disc is large, the fixing rod is pushed backwards, the first telescopic rod and the first spring contract backwards under external pressure, and the fixing rod can be adjusted according to the size of the wheel disc; and the effect of fixing and clamping the wheel discs with different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to an assembling device for bicycle cranks. Background Art

[0002] A bicycle, also known as a bicycle or bike, is a means of transportation and transport that uses human power as a mechanical transmission. Bicycles can be used for transportation and travel, and increasingly, people use them as fitness equipment for exercise and cycling trips. Cycling is also a competitive sport, with events such as road cycling, mountain biking, track cycling, and stunt cycling.

[0003] The crank is an essential part of a bicycle. The crank and the wheel are relatively heavy, and both are currently assembled manually, so the assembly is time-consuming and labor-intensive, and is troublesome and cannot be assembled quickly. Utility Model Content

[0004] The purpose of the utility model is to provide an assembly device for a bicycle crank, which can fix the position of the wheel disc and clamp the crank, and can be assembled without manual operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an assembly device for a bicycle crank, comprising a frame and a workbench, wherein the workbench is fixedly installed between the inner walls of the frame, a cylinder 1 is fixedly installed on the top inner wall of the frame, a pressure plate is fixedly connected to the output end of the cylinder 1, a movable groove 1 and a movable groove 2 are respectively opened on the top of the workbench, and a fixing component and a clamping component are respectively provided on the top of the workbench.

[0006] Preferably, the fixing assembly includes: a support column fixedly mounted on the top of the workbench; a fixing rod, the fixing rod being slidably connected to a slide groove via a small slider.

[0007] Preferably, a support plate is fixedly mounted on the top of the support column.

[0008] Preferably, a fixing pad is fixedly installed on one side of the fixing rod, and a telescopic rod 1 is fixedly connected to the other side of the fixing rod, and the other end of the telescopic rod 1 is fixedly connected to one side of the inner wall of the slide groove 1. The outer wall of the telescopic rod 1 is sleeved with a spring 1, and one end of the spring 1 is fixedly connected to the other side of the fixing rod, and the other end of the spring 1 is fixedly connected to one side of the slide groove 1.

[0009] Preferably, the clamping assembly includes: a motor fixedly mounted on one side of the inner wall of the second slide groove; a guide rod fixedly mounted between the inner walls of the second slide groove; and a slider movably sleeved on the outer wall of the guide rod.

[0010] Preferably, the output end of the motor is fixedly connected with a threaded rod, and the threaded rod is threadably sleeved with the slider.

[0011] Preferably, a telescopic rod 2 is evenly fixedly installed on the top of the slider, the other end of the telescopic rod 2 is fixedly connected to a fixed block, the outer wall of the telescopic rod 2 is sleeved with a spring 2, one end of the spring 2 is fixedly connected to the top of the slider, and the other end of the spring 2 is fixedly connected to the bottom of the fixed block.

[0012] Preferably, a clamping groove and a sliding groove are respectively provided on one side of the fixed block, a clamping plate 1 is fixedly installed on one side of the fixed block, a clamping pad is fixedly installed on the top of the clamping plate 1, a fixing plate is fixedly installed on the other side of the fixed block, a cylinder 2 is fixedly installed on the top of the fixed plate, a connecting plate is fixedly installed on the output end of the cylinder 2, an L-shaped clamping plate is fixedly connected to one side of the connecting plate, the L-shaped clamping plate is slidably connected to the sliding groove through a slider 2, a clamping block 2 is fixedly installed on the bottom of the L-shaped clamping plate, and a clamping pad is fixedly connected to the bottom of the clamping block 2.

[0013] The utility model provides an assembly device for a bicycle crank, which has the following beneficial effects:

[0014] (1) The utility model places the wheel on the top of the support plate and aligns the round hole of the wheel with the round hole of the support plate. If the wheel is large, the fixing rod is pushed backward. The telescopic rod and the spring are retracted backward under the external pressure. The fixing rod is adjusted according to the size of the wheel, so that the wheel of different sizes can be fixed and clamped.

[0015] (2) The present invention places the crank on the clamping plate 1 and starts the cylinder 2, which drives the connecting plate to move downward. The connecting plate drives the L-shaped clamping plate and the clamping block 2 fixedly installed at the bottom of the L-shaped clamping plate to slide downward on the fixed block, thereby achieving the effect of clamping the crank and eliminating the need to hold it by hand during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front view of the structure of the utility model;

[0018] Figure 3 This is a three-dimensional top view of the fixing assembly structure of the utility model;

[0019] Figure 4 This is a three-dimensional view of the clamping assembly structure of the utility model.

[0020] In the figure: 1 frame, 2 workbench, 3 cylinder 1, 4 pressure plate, 5 fixing assembly, 6 clamping assembly;

[0021] 511 support column, 512 support plate, 513 fixing rod, 514 fixing pad, 515 telescopic rod 1, 516 spring 1;

[0022] 611 Motor, 612 Guide rod, 613 Threaded rod, 614 Slider, 615 Telescopic rod 2, 616 Spring 2, 617 Fixing block, 618 Clamping plate 1, 619 Fixing plate, 6111 Cylinder 2, 6112 Connecting plate, 6113 L-type clamping plate, 6114 Clamping block 2, 6115 Clamping pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example 1

[0025] A preferred embodiment of the assembly device for a bicycle crank provided by the present invention is as follows: Figure 1-4As shown: An assembly device for a bicycle crank, comprising a frame 1 and a workbench 2, wherein the workbench 2 is fixedly mounted between the inner walls of the frame 1, a cylinder 3 is fixedly mounted on the top inner wall of the frame 1, a pressure plate 4 is fixedly connected to the output end of the cylinder 3, a movable groove 1 and a movable groove 2 are respectively provided on the top of the workbench 2, a fixing component 5 and a clamping component 6 are respectively provided on the top of the workbench 2, the fixing component 5 comprises: a support column 511, fixedly mounted on the top of the workbench 2; a fixing rod 513, the fixing rod 513 is slidably connected to the slide groove 1 via a small slider, and a support plate 512 is fixedly mounted on the top of the support column 511. A fixing pad 514 is fixedly installed on one side of the fixing rod 513, and a telescopic rod 1 515 is fixedly connected to the other side of the fixing rod 513. The other end of the telescopic rod 1 515 is fixedly connected to one side of the inner wall of the slide groove 1, and a spring 1 516 is sleeved on the outer wall of the telescopic rod 1 515. One end of the spring 1 516 is fixedly connected to the other side of the fixing rod 513, and the other end of the spring 1 516 is fixedly connected to one side of the slide groove 1; put the wheel on the top of the support plate 512, align the round hole of the wheel wheel with the round hole of the support plate 512. If the wheel wheel is large, push the fixing rod 513 backward, and the telescopic rod 1 515 and the spring 1 516 will shrink backward under external pressure, and the fixing rod 513 will be adjusted according to the size of the wheel wheel. Example 2

[0026] On the basis of Example 1, a preferred embodiment of the assembly device for bicycle cranks provided by the present invention is as follows: Figure 1-4As shown: the clamping assembly 6 includes: a motor 611, fixedly installed on one side of the inner wall of the second slide; a guide rod 612, fixedly installed between the inner walls of the second slide; a slider 614, movably sleeved on the outer wall of the guide rod 612, and the output end of the motor 611 is fixedly connected to the threaded rod 613, and the threaded rod 613 is threadedly sleeved with the slider 614. The top of the slider 614 is evenly fixed with a telescopic rod 2 615, and the other end of the telescopic rod 2 615 is fixedly connected to a fixed block 617. The outer wall of the telescopic rod 2 615 is provided with a spring 2 616. One end of the spring 2 616 is fixedly connected to the top of the slider 614, and the other end of the spring 2 616 is fixedly connected to the bottom of the fixed block 617. A clamping groove and a sliding groove are respectively provided on one side of the fixed block 617. A clamping plate 1 618 is fixedly installed on one side of the fixed block 617. A clamping pad 6115 is fixedly installed on the top of the clamping plate 1 618. A fixing plate 619 is fixedly installed on the other side of the fixed block 617. A cylinder 2 6111 is fixedly installed on the top of the fixing plate 619. A connecting plate 6112 is fixedly installed on the output end of 111, and an L-shaped clamping plate 6113 is fixedly connected to one side of the connecting plate 6112. The L-shaped clamping plate 6113 is slidably connected to the slide groove through a slider 2. A clamping block 2 6114 is fixedly installed on the bottom of the L-shaped clamping plate 6113, and a clamping pad 6115 is fixedly connected to the bottom of the clamping block 2 6114. The crank is placed on the clamping plate 1 618, and the cylinder 2 6111 is started. The cylinder 2 6111 drives the connecting plate 6112 to move downward. The connecting plate 6112 drives the L-shaped clamping plate 6113 and the clamping block 2 6114 fixedly installed on the bottom of the L-shaped clamping plate 6113 to slide downward on the fixed block 617 to clamp the crank.

[0027] When the slider drives the clamped crank to reach the fixed position, the motor is turned off and the cylinder is started. The cylinder drives the pressure plate to press the crank so that the crank is engaged with the wheel disc. The pressed crank drives the fixed block to be compressed downward at the same time, and the telescopic rod 2 and the spring 2 under pressure are retracted at the same time.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An assembly device for a bicycle crank, comprising a frame (1) and a workbench (2), characterized in that: The workbench (2) is fixedly mounted between the inner walls of the frame (1), a cylinder 1 (3) is fixedly mounted on the top inner wall of the frame (1), a pressure plate (4) is fixedly connected to the output end of the cylinder 1 (3), a movable groove 1 and a movable groove 2 are respectively opened on the top of the workbench (2), and a fixing component (5) and a clamping component (6) are respectively provided on the top of the workbench (2).

2. The assembly device for a bicycle crank according to claim 1, characterized in that: The fixing assembly (5) comprises: A support column (511) is fixedly mounted on the top of the workbench (2); A fixing rod (513) is slidably connected to a sliding groove via a small slider.

3. The assembly device for a bicycle crank according to claim 2, characterized in that: A support plate (512) is fixedly mounted on the top of the support column (511).

4. The assembly device for a bicycle crank according to claim 2, characterized in that: A fixing pad (514) is fixedly installed on one side of the fixing rod (513), and a telescopic rod (515) is fixedly connected to the other side of the fixing rod (513). The other end of the telescopic rod (515) is fixedly connected to one side of the inner wall of the slide groove. The outer wall of the telescopic rod (515) is provided with a spring (516). One end of the spring (516) is fixedly connected to the other side of the fixing rod (513), and the other end of the spring (516) is fixedly connected to one side of the slide groove.

5. The assembly device for a bicycle crank according to claim 1, characterized in that: The clamping assembly (6) comprises: The motor (611) is fixedly mounted on one side of the inner wall of the second chute; A guide rod (612) is fixedly mounted between the inner walls of the second chute; The slider (614) is movably sleeved on the outer wall of the guide rod (612).

6. The assembly device for a bicycle crank according to claim 5, characterized in that: The output end of the motor (611) is fixedly connected to a threaded rod (613), and the threaded rod (613) is threadedly sleeved with the slider (614).

7. The assembly device for a bicycle crank according to claim 5, characterized in that: A second telescopic rod (615) is evenly fixedly installed on the top of the slider (614), and the other end of the second telescopic rod (615) is fixedly connected to a fixed block (617). The outer wall of the second telescopic rod (615) is provided with a second spring (616), one end of the second spring (616) is fixedly connected to the top of the slider (614), and the other end of the second spring (616) is fixedly connected to the bottom of the fixed block (617).

8. The assembly device for a bicycle crank according to claim 7, characterized in that: A clamping groove and a sliding groove are respectively provided on one side of the fixed block (617), a clamping plate 1 (618) is fixedly installed on one side of the fixed block (617), a clamping pad (6115) is fixedly installed on the top of the clamping plate 1 (618), a fixing plate (619) is fixedly installed on the other side of the fixed block (617), a cylinder 2 (6111) is fixedly installed on the top of the fixed plate (619), a connecting plate (6112) is fixedly installed on the output end of the cylinder 2 (6111), an L-shaped clamping plate (6113) is fixedly connected to one side of the connecting plate (6112), the L-shaped clamping plate (6113) is slidably connected to the sliding groove through a slider 2, a clamping block 2 (6114) is fixedly installed on the bottom of the L-shaped clamping plate (6113), and a clamping pad (6115) is fixedly connected to the bottom of the clamping block 2 (6114).

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