Derailleur assembling device

Abstract

The utility model relates to the technical field of derailleur assembling tools, in particular to a derailleur assembling device which comprises a left supporting frame and a right supporting frame which are mutually symmetrical, a top plate and a U-shaped frame are fixedly installed on top plate bodies of the two supporting frames respectively, the end of the top plate is fixedly installed on the U-shaped frame, a first electric push rod is fixedly installed at the bottom of the top plate, and a second electric push rod is fixedly installed at the bottom of the first electric push rod. The tail end of a telescopic shaft of the first electric push rod penetrates through the top plate and is fixedly provided with a supporting plate, a left supporting rod and a right supporting rod which are symmetrical to each other are fixedly installed on the upper surface of the supporting plate, a lifting frame is fixedly installed at the top ends of the supporting rods, and second electric push rods are fixedly installed on upper and lower side plate bodies of the U-shaped frame; an arc-shaped clamping sleeve is fixedly installed at the tail end of a telescopic shaft of the second electric push rod, and a side edge penetrating groove is formed in the side edge portion of the arc-shaped clamping sleeve. Height adjustment, clamping and guiding assembly operation can be conveniently carried out, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of derailleur assembly tools, in particular to a derailleur assembly device. Background Art

[0002] In the bicycle manufacturing industry, the derailleur is a key component of the transmission system. Its assembly quality and efficiency directly affect the performance and production cost of the entire vehicle. The main function of the derailleur is to accurately guide the chain to switch between multiple gears according to the rider's needs during riding to achieve speed changes.

[0003] Traditional derailleur assembly usually relies on manual operation. Workers need to precisely adjust the relative position of the derailleur with the frame, bottom bracket and other components to ensure that the assembled derailleur can work properly. This process is not only time-consuming and labor-intensive, but also easily affected by the workers' technical level, resulting in unstable assembly quality.

[0004] Currently, in order to achieve efficient assembly, corresponding assembly devices are usually used to assist workers in assembly operations. However, after the basic structure of most assembly devices is fixed during use, their height is also limited. Such assembly devices can generally only assist in the installation of derailleurs on bicycles of the same height. The height cannot be adjusted, which affects their scope of use and effectiveness, and brings inconvenience to users. In view of this, we propose a derailleur assembly device. Utility Model Content

[0005] The purpose of the present utility model is to provide a derailleur assembly device to solve the defects mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A derailleur assembly device comprises two mutually symmetrical left and right support frames, wherein a top plate and a U-shaped frame are fixedly mounted on the top plates of the two support frames respectively, the ends of the top plates are fixedly mounted on the U-shaped frames, a first electric push rod is fixedly mounted on the bottom of the top plate, the end of the telescopic shaft of the first electric push rod passes through the top plate and is fixedly mounted on the support plate, two mutually symmetrical left and right support rods are fixedly mounted on the upper surface of the support plate, a lifting frame is fixedly mounted on the top of the support rod, a second electric push rod is fixedly mounted on the upper and lower side plates of the U-shaped frame, an arc-shaped clamping sleeve is fixedly mounted on the end of the telescopic shaft of the second electric push rod, and a side penetration groove is provided at the side of the arc-shaped clamping sleeve.

[0008] Preferably, the cross-section of the side penetration groove is arc-shaped, and the upper and lower side penetration grooves are located on the same side.

[0009] Preferably, a support base is fixedly mounted on the bottom end of the support frame, and the thickness of the support base is between 1.5 cm and 3 cm.

[0010] Preferably, the lifting frame is provided with a placement groove, and the depth of the placement groove is between 3cm and 6cm.

[0011] Preferably, a guide rod is fixedly installed between the upper and lower plates of the U-shaped frame, a connecting rod is fixedly installed on the side of the arc-shaped clamping sleeve, and a guide ring is fixedly installed on the end of the connecting rod. The guide ring is sleeved on the guide rod and is slidably connected to the guide rod.

[0012] Preferably, a guide post is fixedly mounted on the bottom surface of the support plate, a guide sleeve is fixedly mounted on the top plate, and the guide sleeve is sleeved on the guide post and is slidably connected to the guide post.

[0013] Preferably, the size of the guide ring is adapted to the size of the guide rod, and the size of the guide column is adapted to the size of the guide sleeve.

[0014] Preferably, the cross section of the arc-shaped clamping sleeve is semi-circular, and the cross sections of the two arc-shaped clamping sleeves together form a complete ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is provided with a first electric push rod, which can be used to adjust the height of the lifting frame, and the second electric push rod is used to drive the arc-shaped clamping sleeve to clamp on the corresponding bicycle center axis, thereby achieving the effect of height adjustment and clamping fixation.

[0017] 2. The utility model can guide the support plate through the guide column and guide sleeve, and can guide the movement of the arc-shaped clamping sleeve through the sliding connection between the guide ring and the guide rod, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 This is one of the partial structural diagrams of the utility model;

[0021] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0022] The meaning of each number in the figure is:

[0023] 1. Support frame; 10. Support base; 11. Top plate; 12. U-shaped frame; 13. Guide rod;

[0024] 2. First electric push rod; 20. Support plate; 21. Support rod; 22. Lifting frame; 23. Placement slot; 24. Guide column; 25. Guide sleeve;

[0025] 3. Second electric push rod; 30. Arc-shaped clamping sleeve; 301. Side insertion groove; 31. Connecting rod; 32. Guide ring. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1-4 The utility model provides a technical solution: a derailleur assembly device, comprising two mutually symmetrical support frames 1 on the left and right, a top plate 11 and a U-shaped frame 12 being fixedly mounted on the top plates of the two support frames 1, respectively, and the ends of the top plates 11 being fixedly mounted on the side surfaces of the U-shaped frames 12 to achieve fixed support operation; a first electric push rod 2 being fixedly mounted on the bottom of the top plates 11, the end of the telescopic shaft of the first electric push rod 2 passing through the top plates 11 and being fixedly mounted on a support plate 20, two mutually symmetrical support rods 21 on the left and right being fixedly mounted on the upper surface of the support plate 20, a lifting frame 22 being fixedly mounted on the top of the support rods 21, and the lifting frame 22 being used for lifting operation of the derailleur;

[0028] Specifically, the second electric push rod 3 is fixedly installed on the upper and lower side plates of the U-shaped frame 12, and the end of the telescopic shaft of the second electric push rod 3 is fixedly installed with an arc-shaped clamping sleeve 30. The side of the arc-shaped clamping sleeve 30 is provided with a side insertion groove 301 to ensure that when in use, the arc-shaped clamping sleeve 30 can be used to clamp the derailleur on the central axis of the self-proclaimed bicycle, thereby achieving the effect of clamping, fixing and positioning.

[0029] In this embodiment, the cross section of the side insertion groove 301 is arc-shaped, and the upper and lower side insertion grooves 301 are located on the same side, so that the end component of the derailleur can be inserted from the side insertion groove 301 for assembly.

[0030] Specifically, a support base 10 is fixedly installed at the bottom end of the support frame 1 , and the thickness of the support base 10 is between 1.5 cm and 3 cm, so that a stable supporting and placing operation can be achieved by using the support base 10 .

[0031] Furthermore, a placement groove 23 is provided on the support frame 22. The depth of the placement groove 23 is between 3 cm and 6 cm. The placement groove 23 is used for normal placement operation of the protruding part of the derailleur.

[0032] In addition, a guide rod 13 is fixedly installed between the upper and lower plates of the U-shaped frame 12, a connecting rod 31 is fixedly installed on the side of the arc-shaped clamping sleeve 30, and a guide ring 32 is fixedly installed on the end of the connecting rod 31. The guide ring 32 is sleeved on the guide rod 13 and is slidably connected to the guide rod 13, thereby guiding the movement of the arc-shaped clamping sleeve 30; a guide column 24 is fixedly installed on the bottom surface of the support plate 20, and a guide sleeve 25 is fixedly installed on the top plate 11. The guide sleeve 25 is sleeved on the guide column 24 and is slidably connected to the guide column 24, thereby guiding the support plate 20.

[0033] It is worth noting that the size of the guide ring 32 is adapted to the size of the guide rod 13 , and the size of the guide post 24 is adapted to the size of the guide sleeve 25 , for stable sliding operation.

[0034] It is worth noting that the cross section of the arc-shaped clamping sleeve 30 is semi-circular, and the cross sections of the two arc-shaped clamping sleeves 30 together form a complete ring, which is convenient for clamping at the central axis.

[0035] When the derailleur assembly device of the present invention is in use, the derailleur is placed on the lifting frame 22, and then the first electric push rod 2 is started and made to work. When the first electric push rod 2 works, the telescopic shaft thereon extends or shortens, driving the lifting frame 22 and the derailleur to move to the corresponding height, and then the corresponding second electric push rod 3 is started and made to work. When the second electric push rod 3 works, the telescopic shaft thereon extends and drives the arc-shaped clamping sleeve 30 to move toward the central axis portion between the two arc-shaped clamping sleeves 30. At this time, after the arc-shaped clamping sleeve 30 moves, since the end of the derailleur penetrates into the side penetration groove 301, the arc-shaped clamping sleeve 30 can clamp the derailleur to the central axis portion of the bicycle, and finally cooperate with an external screwdriver and fastening screws to perform the fixed installation operation.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A derailleur assembly device, characterized in that: The invention comprises two mutually symmetrical support frames (1) on the left and right, wherein a top plate (11) and a U-shaped frame (12) are fixedly mounted on the top plates of the two support frames (1), the ends of the top plates (11) are fixedly mounted on the U-shaped frame (12), a first electric push rod (2) is fixedly mounted on the bottom of the top plate (11), the end of the telescopic shaft of the first electric push rod (2) passes through the top plate (11) and is fixedly mounted on a support plate (20), two mutually symmetrical support rods (21) on the left and right are fixedly mounted on the upper surface of the support plate (20), a lifting frame (22) is fixedly mounted on the top of the support rod (21), a second electric push rod (3) is fixedly mounted on the upper and lower plate bodies of the U-shaped frame (12), an arc-shaped clamping sleeve (30) is fixedly mounted on the end of the telescopic shaft of the second electric push rod (3), and a side insertion groove (301) is provided at the side of the arc-shaped clamping sleeve (30).

2. The derailleur assembly device according to claim 1, characterized in that: The cross section of the side penetration groove (301) is arc-shaped, and the upper and lower side penetration grooves (301) are located on the same side.

3. The derailleur assembly device according to claim 1, wherein: A support base (10) is fixedly mounted on the bottom end of the support frame (1), and the thickness of the support base (10) is between 1.5 cm and 3 cm.

4. The derailleur assembly device according to claim 1, wherein: The lifting frame (22) is provided with a placement groove (23), and the depth of the placement groove (23) is between 3 cm and 6 cm.

5. The derailleur assembly device according to claim 1, characterized in that: A guide rod (13) is fixedly installed between the upper and lower plates of the U-shaped frame (12), a connecting rod (31) is fixedly installed on the side of the arc-shaped clamping sleeve (30), and a guide ring (32) is fixedly installed at the end of the connecting rod (31), and the guide ring (32) is sleeved on the guide rod (13) and is slidably connected to the guide rod (13).

6. The derailleur assembly device according to claim 5, characterized in that: A guide post (24) is fixedly mounted on the bottom surface of the support plate (20), and a guide sleeve (25) is fixedly mounted on the top plate (11). The guide sleeve (25) is sleeved on the guide post (24) and is slidably connected to the guide post (24).

7. The derailleur assembly device according to claim 6, characterized in that: The size of the guide ring (32) is adapted to the size of the guide rod (13), and the size of the guide column (24) is adapted to the size of the guide sleeve (25).

8. The derailleur assembly device according to claim 1, wherein: The cross section of the arc-shaped clamping sleeve (30) is semi-circular, and the cross sections of the two arc-shaped clamping sleeves (30) together form a complete ring.

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