A bicycle chain quick dismounting and mounting auxiliary device

Abstract

This utility model provides an auxiliary device for quick disassembly and installation of bicycle chains, belonging to the field of auxiliary devices. It includes a support plate, characterized in that: a grip bar is provided at the rear end of the support plate; side plates are provided on the upper and lower sides of the support plate; an adjustment component is provided on the front surface of both the support plate and the side plates; a connecting plate is provided at the front end of the adjustment component; and a clamping component is provided at the front end of the connecting plate. Twisting the knob drives the first bevel gear connected to it to rotate, which in turn drives the second bevel gears on the upper and lower sides to rotate, driving the screw connected to the outer end to rotate. This meshes and causes the sleeve plate to slide in the groove. With the limiting plate embedded in the limiting groove, the chain held by the clamping plate opens to the upper and lower sides, allowing the opened chain to be directly fitted onto the outside of the bicycle chainring. Twisting the knob in the opposite direction causes the upper and lower sides of the clamping plate to close, allowing the chain to be directly fitted onto the outside of the chainring, improving the ease of chain installation.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices, and more specifically, to an auxiliary device for quick disassembly and installation of bicycle chains. Background Technology

[0002] Bicycles are an essential means of transportation in people's daily lives. However, while enjoying the convenience they bring, bicycle chains also bring some inconveniences. For example, bicycle chains may come off unexpectedly while riding. In this case, the rider has to find a repair shop to fix the bicycle or install the chain himself. At the same time, the hands of the person installing the chain inevitably get stained with oil and dirt from the chain, which is difficult to clean. This raises the question of how to assist in installing bicycle chains.

[0003] A search revealed that Chinese patent CN202572304U discloses a "bicycle chain installation auxiliary device," comprising two parts: a support handle and a pry handle. One end of the support handle has a support rod, and the other end has a screw with threads. The pry handle is cylindrical, with a groove cut in the middle containing two offset pry bars. The pry bars are located at the front end of the pry handle, and the other end of the pry handle has a threaded hole that engages with the screw at one end of the support handle. The support rod has three or more support teeth spaced one chain link apart; the pry bar also has pry teeth. This bicycle chain installation auxiliary device is simple in structure, easy to use, and ingeniously designed, but it still has the following drawbacks:

[0004] (1) Existing auxiliary devices can only pry up or insert the chain disc on one side of the chain using a pry bar. Single-side operation still requires manual support of the other side of the chain to achieve chain installation, which reduces the auxiliary effect.

[0005] (2) The existing chain opening size cannot be adjusted, and the chain opening still needs to be manually opened in order to fit it on chain discs of different sizes, which affects the ease of use of the auxiliary device.

[0006] Therefore, we have made improvements to this by proposing a quick disassembly and installation aid for bicycle chains. Utility Model Content

[0007] The purpose of this invention is to address the problem that existing chain installation auxiliary devices still require a person to hold the other end of the chain to perform the chain installation operation.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A quick-release and installation aid for bicycle chains is provided to improve the aforementioned problems.

[0010] The present invention is as follows:

[0011] Including a support plate, characterized in that: a handle is provided at the rear end of the support plate, side plates are provided on the upper and lower sides of the support plate, an adjustment component is provided on the front surface of both the support plate and the side plates, a connecting plate is provided at the front end of the adjustment component, and a clamping component is provided at the front end of the connecting plate.

[0012] The adjustable distance component includes a central groove opened inside the center of the support plate, a first bevel gear is provided on the inner wall of the left side of the central groove, and a knob is connected to the outer wall of the first bevel gear.

[0013] The clamping assembly includes a slot on the front side of the connecting plate, a panel is movably disposed inside the slot, a side groove is provided on the rear side of the slot, and a side plate that cooperates with the side groove is provided on the rear side of the panel.

[0014] As a preferred technical solution of this utility model, the inner walls of the upper and lower sides of the central groove are provided with a second conical gear that cooperates with the first conical gear.

[0015] As a preferred technical solution of this utility model, the upper and lower sides of the central groove are provided with sliding grooves, the sliding grooves are provided with screws, and the outer wall of the screws is fitted with a sleeve plate.

[0016] As a preferred technical solution of this utility model, the side wall of the slide groove is provided with a limiting groove, and the side wall of the sleeve plate is provided with a limiting plate that cooperates with the limiting groove.

[0017] As a preferred technical solution of this utility model, a telescopic rod is provided on the surface of the panel away from the central groove, and a spring is fitted on the outer wall of the telescopic rod.

[0018] As a preferred technical solution of this utility model, a clamping plate is provided on the outer wall of the front end of the panel.

[0019] As a preferred technical solution of this utility model, the rotation input end of the screw and the rotation output end of the second bevel gear are connected in a cooperative manner.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In the solution of this utility model:

[0022] 1. With the help of the insert, telescopic rod, spring, side plate and clamp, when the bicycle chain needs to be installed, the clamp is pulled outward to move the insert in and out of the slot. Under the limit of the side plate being embedded in the side slot, the telescopic rod and spring are squeezed and contracted, and the upper and lower sides of the chain are placed between the clamp and the connecting plate. The tension on the clamp is released, the telescopic rod and spring push the insert, and under the limit of the side plate being embedded in the side slot, the clamp stably clamps the chain to facilitate subsequent stable installation operations.

[0023] 2. Through the configuration of the first bevel gear, the second bevel gear, the screw, the sleeve plate, and the limiting plate, after the chain is clamped at the top and bottom by the clamping plate, turning the knob drives the first bevel gear connected to it to rotate, which in turn drives the second bevel gears on both the top and bottom sides to rotate, which in turn drives the screw connected to the outer end to rotate, and the sleeve plate to slide in the slide groove. Under the limitation of the limiting plate embedded in the limiting groove, the chain clamped by the clamping plate opens to the top and bottom sides, and the opened chain is directly fitted onto the outside of the bicycle chain wheel. Turning the knob in the opposite direction causes the top and bottom sides of the chain clamped by the clamping plate to close, so that the chain can be directly fitted onto the outside of the chain wheel, which improves the convenience of chain installation. Attached Figure Description

[0024] Figure 1 A front view schematic diagram of the overall structure of an auxiliary device for quick disassembly and installation of a bicycle chain provided by this utility model;

[0025] Figure 2 A rear view diagram of an auxiliary device for quick disassembly and installation of a bicycle chain provided by this utility model;

[0026] Figure 3 A schematic diagram of the adjusting component structure of a bicycle chain quick disassembly and installation auxiliary device provided by this utility model;

[0027] Figure 4 A schematic diagram of the clamping component structure of an auxiliary device for quick disassembly and installation of bicycle chains provided by this utility model.

[0028] The image shows:

[0029] 1. Support plate; 2. Handle bar; 3. Side plate; 401. Center groove; 402. First bevel gear; 403. Knob; 404. Second bevel gear; 405. Slide groove; 406. Screw; 407. Sleeve plate; 408. Limiting groove; 409. Limiting plate; 5. Connecting plate; 601. Slot; 602. Insert plate; 603. Telescopic rod; 604. Spring; 605. Side groove; 606. Side plate; 607. Clamping plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] like Figure 1-4 As shown, this embodiment proposes a bicycle chain quick disassembly and installation auxiliary device, including a support plate 1, characterized in that: a grip bar 2 is provided at the rear end of the support plate 1, side plates 3 are provided on the upper and lower sides of the support plate 1, and an adjustment component is provided on the front surface of both the support plate 1 and the side plates 3, a connecting plate 5 is provided at the front end of the adjustment component, and a clamping component is provided at the front end of the connecting plate 5.

[0035] The adjustable distance assembly includes a central groove 401 opened inside the center of the support plate 1, a first bevel gear 402 is provided on the inner left side of the central groove 401, and a knob 403 is connected to the outer wall of the first bevel gear 402.

[0036] The clamping assembly includes a slot 601 on the front side of the connecting plate 5, a panel 602 movably disposed inside the slot 601, a side groove 605 on the rear side of the slot 601, and a side plate 606 that cooperates with the side groove 605 on the rear side of the panel 602.

[0037] like Figure 3 As shown, the inner walls of the upper and lower sides of the central groove 401 are provided with second bevel gears 404 that cooperate with the first bevel gear 402. When the upper and lower sides of the chain are clamped by the clamping plate 607, the knob 403 is turned to drive the first bevel gear 402 connected to it to rotate, and the meshing drives the second bevel gears 404 on the upper and lower sides to rotate.

[0038] like Figure 3As shown, the center groove 401 has sliding grooves 405 on the upper and lower outer sides. A screw 406 is installed inside the sliding groove 405. A sleeve plate 407 is fitted on the outer wall of the screw 406. When the screw 406 rotates, it meshes and drives the sleeve plate 407 to slide in the sliding groove 405. Under the limitation of the limiting plate 409 embedded in the limiting groove 408, the chain held by the clamping plate 607 opens to the upper and lower sides.

[0039] like Figure 4 As shown, the slide groove 405 has a limiting groove 408 on its side wall, and the sleeve plate 407 has a limiting plate 409 that cooperates with the limiting groove 408 on its side wall. When the limiting plate 409 is embedded in the limiting groove 408, the chain held by the clamping plate 607 opens to the upper and lower sides, and the opened chain is directly fitted onto the outside of the bicycle chain spool. By turning the knob 403 in the opposite direction, the upper and lower sides of the chain held by the clamping plate 607 are closed, so that the chain can be directly fitted onto the outside of the chain spool.

[0040] like Figure 4 As shown, a telescopic rod 603 is fitted on the surface of the insert plate 602 away from the central groove 401. A spring 604 is fitted on the outer wall of the telescopic rod 603. When the telescopic rod 603 and the spring 604 are compressed and contracted, the upper and lower sides of the chain are placed between the clamping plate 607 and the connecting plate 5. When the tension on the clamping plate 607 is released, the telescopic rod 603 and the spring 604 push the insert plate 602. With the side plate 606 embedded in the side groove 605, the clamping plate 607 stably clamps the chain.

[0041] like Figure 4 As shown, a clamping plate 607 is provided on the outer wall of the front end of the insert 602. The upper and lower sides of the chain are placed between the clamping plate 607 and the connecting plate 5. The tension on the clamping plate 607 is released, and the telescopic rod 603 and the spring 604 push the insert 602. With the side plate 606 embedded in the side groove 605, the clamping plate 607 stably clamps the chain to facilitate subsequent stable installation.

[0042] like Figure 3 As shown, the rotation input end of the screw 406 is connected to the rotation output end of the second bevel gear 404. When the second bevel gear 404 rotates, it drives the screw 406 connected to the outer end to rotate. The meshing causes the sleeve plate 407 to slide in the slide groove 405. Under the limitation of the limiting plate 409 embedded in the limiting groove 408, the chain held by the clamping plate 607 opens to the upper and lower sides.

[0043] Specifically: When installing a bicycle chain, pull the clamp 607 outward to move the insert 602 in and out of the slot 601. With the side plate 606 embedded in the side groove 605, the telescopic rod 603 and spring 604 are compressed and contracted, placing the upper and lower sides of the chain between the clamp 607 and the connecting plate 5. Release the tension on the clamp 607, and the telescopic rod 603 and spring 604 push the insert 602. With the side plate 606 embedded in the side groove 605, the clamp 607 stably clamps the chain for subsequent stable installation. After the upper and lower sides of the chain are clamped by the clamp 607... Twisting the knob 403 causes the first bevel gear 402 connected to it to rotate, which in turn drives the second bevel gears 404 on both the upper and lower sides to rotate, which in turn drives the screw 406 connected to the outer end to rotate. This in turn drives the sleeve plate 407 to slide in the slide groove 405. Under the limitation of the limiting plate 409 embedded in the limiting groove 408, the chain held by the clamping plate 607 is opened to the upper and lower sides, and the opened chain is directly fitted onto the outside of the bicycle chain wheel. Twisting the knob 403 in the opposite direction causes the upper and lower sides of the clamping plate 607 to close, so that the chain can be directly fitted onto the outside of the chain wheel, which improves the convenience of chain installation.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A device for assisting quick dismounting and mounting of a bicycle chain, comprising a support plate (1), characterized in that: The support plate (1) is provided with a handle (2) at the rear end, and the support plate (1) is provided with side plates (3) on the upper and lower sides. The front surfaces of the support plate (1) and the side plates (3) are provided with adjustable distance components. The front end of the adjustable distance component is provided with a connecting plate (5), and the front end of the connecting plate (5) is provided with a clamping component. The adjustable distance assembly includes a central groove (401) opened inside the center of the support plate (1), a first bevel gear (402) is provided on the inner wall of the left side of the central groove (401), and a knob (403) is connected to the outer wall of the first bevel gear (402). The clamping assembly includes a slot (601) on the front side of the connecting plate (5), a panel (602) is movably disposed inside the slot (601), a side groove (605) is provided on the rear side of the slot (601), and a side plate (606) is provided on the rear side of the panel (602) to cooperate with the side groove (605).

2. A device for assisting in the rapid removal and installation of a bicycle chain as defined in claim 1, characterized in that The inner walls of the upper and lower sides of the central groove (401) are provided with a second bevel gear (404) that cooperates with the first bevel gear (402).

3. A device for assisting the rapid removal and installation of a bicycle chain according to claim 2, characterised in that, The central groove (401) has sliding grooves (405) on the upper and lower sides. A screw (406) is installed inside the sliding groove (405), and a sleeve plate (407) is fitted on the outer wall of the screw (406).

4. A device for assisting the rapid removal and installation of a bicycle chain according to claim 3, characterised in that, The side wall of the slide (405) is provided with a limiting groove (408), and the side wall of the sleeve (407) is provided with a limiting plate (409) that cooperates with the limiting groove (408).

5. A device for assisting in the rapid removal and installation of a bicycle chain as defined in claim 1, wherein A telescopic rod (603) is fitted on the surface of the panel (602) away from the central groove (401), and a spring (604) is fitted on the outer wall of the telescopic rod (603).

6. A device for assisting in the rapid removal and installation of a bicycle chain as defined in claim 1, wherein A clamping plate (607) is provided on the outer wall of the front end of the panel (602).

7. A device for assisting in the rapid removal and installation of a bicycle chain as defined in claim 3, wherein The rotation input end of the screw (406) is connected to the rotation output end of the second bevel gear (404).

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