CN222892094U

CN222892094U - Anti-theft lock for middle axle of bicycle

Info

Publication number: CN222892094U
Application number: CN202422061397.7U
Authority: CN
Inventors: 詹振弟; 沈国; 詹薇; 徐耶琳; 沈海录
Original assignee: Wenzhou Golden Key Lock Industry Co ltd
Current assignee: Wenzhou Golden Key Lock Industry Co ltd
Priority date: 2024-08-26
Filing date: 2024-08-26
Publication date: 2025-05-23
Anticipated expiration: 2034-08-26

Abstract

The utility model relates to the technical field of bicycle anti-theft, specifically a bicycle central axis anti-theft lock, including a device shell and a driving component, wherein two groups of slide blocks are oppositely arranged in the device shell, a latch is arranged on the slide block, a first rack is arranged on the slide block, a transmission gear is arranged in the device shell at the output end of the driving component, the first rack is meshed with the transmission gear, and the two groups of first racks are matched with the opposite sides of the transmission gear respectively, a positioning plate is slidably arranged in the device shell, a first telescopic component is arranged between the positioning plate and the device shell, and a positioning protrusion is arranged on the slide block that is plugged and matched with the positioning plate. The utility model arranges the positioning plate in the device shell, and when the latch is moved, the positioning plate moves down so that the positioning protrusion arranged on the slide block is plugged and matched with a hole on the positioning plate, and the slide block is positioned and fixed by means of snap-fit matching, thereby reducing the probability that the latch is knocked by external force and retracts from the through opening into the device shell.

Description

Anti-theft lock for middle axle of bicycle

Technical Field

The utility model relates to the technical field of bicycle burglary prevention, in particular to a bicycle center shaft burglary-prevention lock.

Background

The utility model discloses a bicycle center shaft anti-theft lock in China patent with an announcement number of CN221340871U, which belongs to the technical field of bicycle anti-theft and comprises a device shell, a driving mechanism and a limiting mechanism, wherein the device shell comprises a connecting box body and through holes, the two through holes are respectively formed in two ends of the outer wall of the connecting box body, the driving mechanism is arranged on the device body, the driving mechanism comprises a motor, a rotating rod and a gear, the motor is fixedly arranged in the center of the top of the connecting box body, one end of the rotating rod is fixedly arranged at the output end of the motor, the other end of the rotating rod penetrates through the top of the connecting box body, the gear is fixedly arranged at the bottom of the rotating rod, and the limiting mechanism is arranged on the device shell and used for assisting in limiting. The utility model solves the problems that most of bicycle locks are exposed and easily pried or cut by thieves, and unnecessary worry and loss are brought to people using the bicycle. In the patent, the motor drives the plug to extend out of the through hole of the connecting box body and insert into the inner wall of the lock cylinder to lock the car. In the patent, the plug is fixed in position only through the meshing and toothed joint of the rack and the gear, so that the plug is easy to retract into the device shell from the through hole in a knocking way by external force, and the plug and the through hole of the lock cylinder are mutually separated.

Based on the above, the utility model designs a bicycle bottom bracket lock to solve the above problems.

Disclosure of utility model

The utility model aims to provide a bicycle bottom bracket lock for preventing theft of a bottom bracket bearing, which solves the technical problems.

The utility model provides a bicycle center shaft anti-theft lock, which comprises a device shell and a driving assembly, wherein two groups of sliding blocks are oppositely arranged in the device shell, the two groups of sliding blocks are arranged in a central symmetry manner, a bolt is arranged on each sliding block, a through hole for the bolt to pass through is arranged on the side wall of the device shell, a first rack is arranged on each sliding block, the driving assembly is arranged on the outer wall of the device shell, the output end of the driving assembly extends into the device shell and is provided with a transmission gear, the first racks are meshed with the transmission gear in a toothed manner, the two groups of first racks are respectively matched with the opposite sides of the transmission gear in a mutually meshed manner, a positioning plate is arranged in the device shell in a sliding manner, a first telescopic assembly is arranged between the positioning plate and the device shell, and a positioning block which is mutually spliced and matched with the positioning plate is arranged on each sliding block.

Preferably, a bottom plate is arranged in the device shell, the bottom plate is arranged on the lower side of the sliding block, and the sliding block is in sliding abutting connection with the bottom plate.

Preferably, two groups of side plates are oppositely arranged on the bottom plate, and the two groups of side plates are respectively matched with the two groups of side walls of the sliding block in a sliding manner.

Preferably, two groups of top plates are oppositely arranged on the bottom plate, and the two groups of top plates are respectively matched with the tops of the two groups of sliding blocks in a mutually abutting mode.

Preferably, the sliding block is in an L-shaped arrangement, and the bolt is arranged on the short side of the sliding block.

Preferably, the short sides of the sliding blocks are mutually abutted and matched with the bottoms of the long sides of the adjacent sliding blocks.

Compared with the prior art, the positioning device has the beneficial effects that the positioning plate is arranged in the device shell, after the plug pin is moved, the positioning plate moves downwards to enable the positioning protruding blocks arranged on the sliding block to be mutually inserted and matched with the holes on the positioning plate, the sliding block is positioned and fixed by using the clamping and matching, and the probability that the plug pin is knocked by external force to retract into the device shell from the through hole is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a slider structure according to the present utility model;

fig. 3 is a schematic view of the internal structure of the device housing of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

The device comprises a device shell, 11-through holes, 2-driving components, 21-transmission gears, 3-sliding blocks, 31-bolts, 32-first racks, 4-positioning plates, 41-first telescopic components, 42-positioning lugs, 43-slots, 5-bottom plates, 51-side plates and 52-top plates.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments in the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

In connection with fig. 1-3:

The utility model provides a bicycle axis pickproof lock, including device casing 1 and drive assembly 2, the opposition is equipped with two sets of sliders 3 in the device casing 1, two sets of sliders 3 are central symmetry setting, be equipped with bolt 31 on the slider 3, be equipped with the through-hole 11 that supplies bolt 31 to pass on the device casing 1 lateral wall, be equipped with first rack 32 on the slider 3, drive assembly 2 locates device casing 1 outer wall, drive assembly 2 output extends into and is equipped with drive gear 21 in the device casing 1, first rack 32 and drive gear 21 intermeshing toothing, two sets of first racks 32 respectively with drive gear 21 opposition both sides mutually support, the device casing 1 is interior to be equipped with locating plate 4, be equipped with first telescopic assembly 41 between locating plate 4 and the device casing 1, be equipped with the location lug 42 with locating plate 4 mutual grafting matching on the slider 3.

Further, a bottom plate 5 is arranged in the device housing 1, the bottom plate 5 is arranged on the lower side of the sliding block 3, and the sliding block 3 and the bottom plate 5 are in sliding abutting connection with each other.

Further, two sets of side plates 51 are oppositely arranged on the bottom plate 5, and the two sets of side plates 51 are respectively matched with the side walls of the two sets of sliding blocks 3 in a sliding manner.

Further, two sets of top plates 52 are oppositely arranged on the bottom plate 5, and the two sets of top plates 52 are respectively in butt fit with the tops of the two sets of sliding blocks 3.

Further, the sliding block 3 is L-shaped, and the latch 31 is disposed on a short side of the sliding block 3.

Further, the short sides of the sliding blocks 3 are mutually abutted and matched with the bottoms of the long sides of the adjacent sliding blocks 3.

The specific application embodiment of the utility model is as follows:

The drive assembly 2 may be a drive motor. The output end of the driving component 2 penetrates through the device shell 1 and extends into the device shell 1 to be meshed with the first rack 32 by the transmission gear 21 so as to drive the sliding block 3 to move. And two groups of first racks 32 arranged on the two groups of sliding blocks 3 are respectively engaged and matched with the two opposite sides of the transmission gear 21, so that when the transmission gear 21 rotates, the two groups of sliding blocks 3 can be driven to move in opposite directions. The bolt 31 is arranged on the sliding block 3, and when the sliding block 3 moves, the bolt 31 is driven to move and insert into the inner wall of the through hole of the lock cylinder to lock the vehicle. The first telescopic assembly 41 may be made of an electric telescopic rod. The first telescopic component 41 extends to drive the positioning plate 4 to move towards the direction of the sliding block 3. After the slider 3 moves to the position under the drive of the driving component 2, the positioning plate 4 moves downwards to be matched with the top wall of the slider 3 in a mutually abutting mode, so that the positioning protruding blocks 42 arranged on the top wall of the slider 3 are matched with the slots formed in the positioning plate 4 in a mutually clamping mode, the horizontal movement of the slider 3 is limited, and the purpose of positioning and fixing the slider 3 is achieved. And the positioning plate 4 is provided with two groups of slots which are respectively inserted and matched with the positioning lugs 42 at different positions in two states of the bolt 31 extending out of the device shell 1 and the retracting device shell 1. The sliding blocks 3 in two groups of states are positioned and fixed. The slider 3 is L-shaped, and the short arm of the slider 3 and the long arm of the adjacent slider 3 are far away from the mutual butt of short arm one end, when the short arm of the slider 3 and the long arm of the adjacent slider 3 are mutually butt matched, the bolt 31 is completely retracted into the device shell 1. The position of the sliding block 3 is favorably positioned preliminarily. The bottom plate 5 which is mutually abutted and matched with the bottom wall of the sliding block 3 is arranged on the lower side of the sliding block 3, and the bottom plate 5 is mutually abutted and matched with the lower side wall of the sliding block 3, so that the positioning plate 4 is prevented from moving downwards to push the sliding block 3 to move downwards along with the positioning plate 4, and the first rack 32 is separated from the transmission gear 21. The side plates 51 are opposite to the long edges on the two sides of the bottom plate 5, and the side plates 51 are mutually abutted and matched with the side walls of the sliding block 3 to limit the sliding block 3 to move towards the direction away from the transmission gear 21. It is advantageous to ensure that the first rack 32 and the transfer gear 21 are matched to each other. The two sets of top plates 52 are opposite to the short edges on two sides of the bottom plate 5, and the two sets of top plates 52 are respectively in butt fit with the end walls of the two sets of sliding blocks 3 to limit the moving distance of the sliding blocks 3, so that the length of the bolt 31 extending out of the device shell 1 is limited. The slot on the side of the positioning plate 4 far away from the transmission gear 21 is matched with the positioning lug 42 on the sliding block 3.

In the description of the utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, or indirectly connected through an intermediate medium, and may be a communication between two elements or an interaction relationship between two elements, unless explicitly specified otherwise, and it will be understood by those of ordinary skill in the art that the above terms are in the meaning of the utility model as appropriate.

Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The bicycle center shaft anti-theft lock is characterized in that two groups of sliding blocks (3) are oppositely arranged in the device shell (1), the two groups of sliding blocks (3) are arranged in a central symmetry mode, a bolt (31) is arranged on each sliding block (3), a through hole (11) for the bolt (31) to pass through is formed in the side wall of the device shell (1), a first rack (32) is arranged on each sliding block (3), the driving assembly (2) is arranged on the outer wall of the device shell (1), the output end of the driving assembly (2) extends into the device shell (1) and is provided with a transmission gear (21), the first rack (32) is meshed with the transmission gear (21) in a toothed mode, the two groups of the first racks (32) are respectively matched with the two opposite sides of the transmission gear (21), a positioning plate (4) is arranged in a sliding mode in the device shell (1), a first telescopic assembly (41) is arranged between the positioning plate (4) and the device shell (1), and the first rack (32) is provided with a positioning plate (42) matched with the positioning plate (4).

2. The bicycle bottom bracket anti-theft lock according to claim 1, wherein a bottom plate (5) is arranged in the device shell (1), the bottom plate (5) is arranged on the lower side of the sliding block (3), and the sliding block (3) and the bottom plate (5) are in sliding abutting connection with each other.

3. The bicycle bottom bracket lock according to claim 2, wherein two sets of side plates (51) are oppositely arranged on the bottom plate (5), and the two sets of side plates (51) are respectively matched with the side walls of the two sets of sliding blocks (3) in a sliding manner.

4. The bicycle bottom bracket lock according to claim 2, wherein two sets of top plates (52) are oppositely arranged on the bottom plate (5), and the two sets of top plates (52) are respectively in butt fit with the tops of the two sets of sliding blocks (3).

5. The bicycle bottom bracket lock according to claim 1, wherein the sliding block (3) is L-shaped, and the bolt (31) is arranged on the short side of the sliding block (3).

6. The bicycle bottom bracket lock according to claim 5, wherein the short side of the sliding block (3) is matched with the bottom of the long side of the adjacent sliding block (3) in an abutting mode.