Chain regulator for preventing chain from loosening

Abstract

The chain adjuster comprises a locking ring and an end portion fixing block, an adjusting mechanism is fixedly installed on one side of the locking ring, the end portion fixing block is fixedly installed on one side of the adjusting mechanism, a clamping groove is formed in one side of the end portion fixing block, and the end portion fixing block is fixedly installed on the other side of the adjusting mechanism. A mounting mechanism capable of being adjusted up and down is fixedly installed on the adjusting mechanism, and a chain tensioning mechanism for tensioning a chain is fixedly installed on one side of the mounting mechanism. The locking ring can be installed on a rear wheel shaft of a bicycle, then the adjusting mechanism is used for adjusting the distance between the locking ring and the end fixing block, and then the end fixing block and the clamping groove can make contact with and be fixed to one end of a bicycle frame. In this way, chain loosening caused by displacement of the rear wheel during long-time use can be prevented, it can be guaranteed that the chain tensioning mechanism can be attached to the chain through the arranged installation mechanism, and therefore the chain can be supported and tensioned through the chain tensioning mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a chain adjuster used for preventing a chain from loosening. Background Art

[0002] A bicycle is a very popular means of transportation and exercise equipment. It consists of two main parts: a frame (body) and two wheels. Bicycles are usually powered by pedals, which are connected to a chain drive system that transfers power to the rear wheel, making the bicycle move forward.

[0003] When riding a bicycle, gears and chains are used for transmission. When installing the rear wheel, a rotating shaft and a nut are used to fix the rear wheel. After installation, if the vehicle encounters large bumps or rides for a long time, the chain is likely to become loose, causing the chain to fall off. For this reason, we propose a chain adjuster for preventing the chain from loosening. Utility Model Content

[0004] The purpose of the utility model is to provide a chain adjuster for preventing a chain from loosening, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a chain adjuster for preventing a chain from loosening, comprising a locking ring and an end fixing block, the locking ring being sleeved on the rear wheel axle, an adjusting mechanism being fixedly installed on one side of the locking ring, the end fixing block being fixedly installed on one side of the adjusting mechanism, the adjusting mechanism being used to adjust the distance between the locking ring and the clamping groove, a clamping groove being provided on one side of the end fixing block, an installation mechanism for adjusting up and down being fixedly installed on the adjusting mechanism, and a chain tensioning mechanism for tensioning the chain being fixedly installed on one side of the installation mechanism.

[0006] Furthermore, the adjustment mechanism includes a first threaded rod, a fixing ring, a connecting block and a first locking nut. The outer surface of the first threaded rod is slidably connected to the fixing ring. One side of the fixing ring is fixedly connected to the end fixing block through the connecting block. The outer surface of the first threaded rod is threadedly connected to the first locking nut that fits into one side of the fixing ring.

[0007] Furthermore, the mounting mechanism includes a positioning block, a second threaded rod, a second locking nut, a first fixing bracket and a second fixing bracket, the positioning block is fixedly mounted on the first threaded rod, the second threaded rod is slidably connected to the positioning block, the outer surface of the second threaded rod and the top and bottom of the positioning block are threadedly connected with the second locking nut, one side of the second threaded rod is fixedly connected to the first fixing bracket, and one end of the first fixing bracket is fixedly connected to the chain tensioning mechanism through the second fixing bracket.

[0008] Furthermore, the chain tensioning mechanism includes a first limiting plate and a second limiting plate, one side of the first limiting plate is fixedly connected to a guide roller, one side of the second limiting plate is fixedly connected to a limiting shaft inserted into the guide roller, a threaded sleeve is fixedly installed on one side of the first limiting plate and above the guide roller, and the other side of the second limiting plate is provided with a locking bolt threadedly connected to the threaded sleeve.

[0009] Furthermore, one end of the first threaded rod is threadedly connected to a third threaded rod, and one end of the third threaded rod is fixedly connected to a locking ring.

[0010] Furthermore, the locking ring, the adjusting mechanism, the end fixing block, the mounting mechanism and the chain tensioning mechanism are all made of stainless steel.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention can be installed on the rear wheel axle of a bicycle by providing a locking ring, and then the distance between the locking ring and the end fixing block can be adjusted by using an adjustment mechanism, and then the end fixing block and the clamping groove can be contacted and fixed with one end of the frame, so that the rear wheel can be prevented from being displaced during long-term use, causing the chain to loosen, and the provided installation mechanism can ensure that the chain tensioning mechanism can fit with the chain, so that the chain tensioning mechanism can be used to support and tension the chain, thereby preventing the chain from loosening when encountering bumpy roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the first stereoscopic structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the second stereoscopic structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the chain tensioning mechanism of the utility model.

[0015] In the figure: 1 locking ring, 2 adjusting mechanism, 3 end fixing block, 4 clamping groove, 5 mounting mechanism, 6 chain tensioning mechanism, 7 first threaded rod, 8 fixing ring, 9 connecting block, 10 first locking nut, 11 positioning block, 12 second threaded rod, 13 second locking nut, 14 first fixing frame, 15 second fixing frame, 16 first limiting plate, 17 second limiting plate, 18 guide roller, 19 limiting shaft, 20 threaded sleeve, 21 locking bolt, 22 third threaded rod. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-Figure 3 The utility model provides a technical solution: a chain adjuster for preventing a chain from loosening, comprising a locking ring 1 and an end fixing block 3, the locking ring 1 being sleeved on the rear wheel axle, an adjusting mechanism 2 being fixedly installed on one side of the locking ring 1, the end fixing block 3 being fixedly installed on one side of the adjusting mechanism 2, the adjusting mechanism 2 being used to adjust the distance between the locking ring 1 and the clamping groove 4, a clamping groove 4 being provided on one side of the end fixing block 3, a mounting mechanism 5 for adjusting up and down being fixedly installed on the adjusting mechanism 2, and a chain tensioning mechanism 6 for tensioning the chain being fixedly installed on one side of the mounting mechanism 5.

[0018] Among them, by setting a locking ring 1, it can be installed on the rear wheel axle of the bicycle, and then the distance between the locking ring 1 and the end fixing block 3 can be adjusted by using the adjustment mechanism 2, and then the end fixing block 3 and the clamping groove 4 can be made to contact and fix with one end of the frame, so that the rear wheel can be prevented from being displaced during long-term use, causing the chain to loosen, and the provided installation mechanism 5 can ensure that the chain tensioning mechanism 6 can fit with the chain, so that the chain tensioning mechanism 6 can be used to support and tension the chain, thereby preventing the chain from loosening when encountering bumpy roads.

[0019] See also Figure 1 and Figure 2 The adjusting mechanism 2 includes a first threaded rod 7, a fixing ring 8, a connecting block 9 and a first locking nut 10. The outer surface of the first threaded rod 7 is slidably connected to the fixing ring 8. One side of the fixing ring 8 is fixedly connected to the end fixing block 3 through the connecting block 9. The outer surface of the first threaded rod 7 is threadedly connected to the first locking nut 10 that fits into one side of the fixing ring 8.

[0020] Among them, when it is necessary to adjust the position of the end fixing block 3, loosen the first locking nut 10, then install the locking ring 1 on the rear wheel axle of the bicycle, and then push the fixing ring 8 to move along the first threaded rod 7, so that the end fixing block 3 and the clamping groove 4 are in contact with one side of the frame, and then tighten the first locking nut 10. The fixing ring 8 can be positioned using the first locking nut 10, so that the end fixing block 3 and the locking ring 1 can be used to prevent the rear wheel from loosening.

[0021] See also Figure 1 and Figure 3The chain tensioning mechanism 6 includes a first limiting plate 16 and a second limiting plate 17. One side of the first limiting plate 16 is fixedly connected to a guide roller 18, and one side of the second limiting plate 17 is fixedly connected to a limiting shaft 19 inserted into the guide roller 18. A threaded sleeve 20 is fixedly installed on one side of the first limiting plate 16 and above the guide roller 18. The other side of the second limiting plate 17 is provided with a locking bolt 21 threadedly connected to the threaded sleeve 20.

[0022] Among them, the first limiting plate 16 and the second limiting plate 17 are aligned, and the limiting shaft 19 is inserted into the guide roller 18, so that the chain is located between the guide roller 18 and the threaded sleeve 20, and then the locking bolt 21 is threadedly installed inside the threaded sleeve 20, so as to prevent the chain from detaching from the guide roller 18 and the threaded sleeve 20.

[0023] See also Figure 1 and Figure 3 The mounting mechanism 5 includes a positioning block 11, a second threaded rod 12, a second locking nut 13, a first fixing bracket 14 and a second fixing bracket 15. The positioning block 11 is fixedly mounted on the first threaded rod 7, and the second threaded rod 12 is slidably connected to the positioning block 11. The outer surface of the second threaded rod 12 and the top and bottom of the positioning block 11 are threadedly connected with the second locking nut 13. One side of the second threaded rod 12 is fixedly connected to the first fixing bracket 14, and one end of the first fixing bracket 14 is fixedly connected to the chain tensioning mechanism 6 through the second fixing bracket 15.

[0024] Among them, after the chain tensioning mechanism 6 is fixed to the outside of the chain, the second threaded rod 12 is inserted into the positioning block 11, and the first fixing frame 14 and the second fixing frame 15 provided can ensure that the chain tightening mechanism 6 corresponds to the chain, and then the second threaded rod 12 is pushed, and the guide roller 18 can be used to tension the chain, and then the two sets of second locking nuts 13 can be used to lock and fix the second threaded rod 12, so as to prevent the chain from loosening.

[0025] See also Figure 1 One end of the first threaded rod 7 is threadedly connected to the third threaded rod 22, and one end of the third threaded rod 22 is fixedly connected to the locking ring 1. The locking ring 1 installed using the third threaded rod 22 can select the corresponding locking ring 1 for rear wheel rotating shafts of different sizes.

[0026] See also Figure 1The locking ring 1, adjusting mechanism 2, end fixing block 3, mounting mechanism 5 and chain tensioning mechanism 6 are all made of stainless steel. The locking ring 1, adjusting mechanism 2, end fixing block 3, mounting mechanism 5 and chain tensioning mechanism 6 made of stainless steel can prevent deformation during use and can also prevent rust during use.

[0027] When in use, first, by setting the locking ring 1, it can be installed on the rear wheel axle of the bicycle, and then the distance between the locking ring 1 and the end fixing block 3 can be adjusted by using the adjusting mechanism 2, and then the end fixing block 3 and the clamping groove 4 can be contacted and fixed with one end of the frame, so that the rear wheel can be prevented from being displaced and causing the chain to loosen during long-term use, and the provided installation mechanism 5 can ensure that the chain tensioning mechanism 6 can fit with the chain, so that the chain tensioning mechanism 6 can be used to support and tension the chain, thereby preventing the chain from loosening when encountering bumpy roads. When it is necessary to adjust the position of the end fixing block 3, loosen the first locking nut 10, and then install the locking ring 1 on the rear wheel axle of the bicycle, and then push the fixing ring 8 to move along the first threaded rod 7 to make the end fixing block 3 and the clamping groove 4 fit with one side of the frame, and then tighten the first locking nut 10, and the first locking nut can be used to tighten the chain. 10 is used to position the fixing ring 8, so that the end fixing block 3 and the locking ring 1 can be used to prevent the rear wheel from loosening, the first limiting piece 16 and the second limiting piece 17 are aligned, and the limiting shaft 19 is inserted into the guide roller 18, so that the chain is located between the guide roller 18 and the threaded sleeve 20, and then the locking bolt 21 is threadedly installed inside the threaded sleeve 20, so that the chain can be prevented from detaching from the guide roller 18 and the threaded sleeve 20. After the chain tensioning mechanism 6 is fixed to the outside of the chain, the second threaded rod 12 is inserted into the positioning block 11, and the first fixing frame 14 and the second fixing frame 15 are set to ensure that the chain tightening mechanism 6 corresponds to the chain, and then the second threaded rod 12 is pushed, and the guide roller 18 can be used to tension the chain, and then the two sets of second locking nuts 13 can be used to lock and fix the second threaded rod 12, so that the chain can be prevented from loosening.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain adjuster for preventing a chain from loosening, comprising a locking ring (1) and an end fixing block (3), wherein the locking ring (1) is sleeved on a rear wheel axle, and is characterized in that: An adjusting mechanism (2) is fixedly mounted on one side of the locking ring (1), and the end fixing block (3) is fixedly mounted on one side of the adjusting mechanism (2). The adjusting mechanism (2) is used to adjust the distance between the locking ring (1) and the clamping groove (4). A clamping groove (4) is provided on one side of the end fixing block (3). A mounting mechanism (5) for adjusting up and down is fixedly mounted on the adjusting mechanism (2), and a chain tensioning mechanism (6) for tensioning the chain is fixedly mounted on one side of the mounting mechanism (5). The adjusting mechanism (2) comprises a first threaded rod (7), a fixing ring (8), a connecting block (9) and a first locking nut (10); the outer surface of the first threaded rod (7) is slidably connected to the fixing ring (8); one side of the fixing ring (8) is fixedly connected to the end fixing block (3) through the connecting block (9); the outer surface of the first threaded rod (7) is threadedly connected to the first locking nut (10) that is in contact with one side of the fixing ring (8).

2. A chain adjuster for preventing a chain from loosening according to claim 1, characterized in that: The mounting mechanism (5) comprises a positioning block (11), a second threaded rod (12), a second locking nut (13), a first fixing frame (14) and a second fixing frame (15), wherein the positioning block (11) is fixedly mounted on the first threaded rod (7), the second threaded rod (12) is slidably connected to the positioning block (11), the outer surface of the second threaded rod (12) and the top and bottom of the positioning block (11) are both threadedly connected to the second locking nut (13), one side of the second threaded rod (12) is fixedly connected to the first fixing frame (14), and one end of the first fixing frame (14) is fixedly connected to the chain tensioning mechanism (6) via the second fixing frame (15).

3. A chain adjuster for preventing a chain from loosening according to claim 2, characterized in that: The chain tensioning mechanism (6) includes a first limiting piece (16) and a second limiting piece (17), one side of the first limiting piece (16) is fixedly connected to a guide roller (18), one side of the second limiting piece (17) is fixedly connected to a limiting shaft (19) inserted into the guide roller (18), a threaded sleeve (20) is fixedly installed on one side of the first limiting piece (16) and above the guide roller (18), and the other side of the second limiting piece (17) is provided with a locking bolt (21) threadedly connected to the threaded sleeve (20).

4. A chain adjuster for preventing a chain from loosening according to claim 3, characterized in that: One end of the first threaded rod (7) is threadedly connected to a third threaded rod (22), and one end of the third threaded rod (22) is fixedly connected to the locking ring (1).

5. A chain adjuster for preventing a chain from loosening according to claim 4, characterized in that: The locking ring (1), the adjusting mechanism (2), the end fixing block (3), the mounting mechanism (5) and the chain tensioning mechanism (6) are all made of stainless steel.

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