Password disc brake lock

Abstract

The utility model relates to a password disc brake lock which comprises an outer shell, the outer shell comprises a main shell body and an auxiliary shell body, the lower end of the main shell body and the lower end of the auxiliary shell body are integrally formed, and a connecting gap allowing a brake disc to be inserted therein is formed between the main shell body and the auxiliary shell body. The coded lock assembly is arranged on the main shell; the lock cylinder shaft comprises a lock rod part, a locking part and a pressing part which are sequentially arranged, the lock rod part is connected into the coded lock assembly in a sliding mode and matched with the coded lock assembly, and a through hole is formed in the locking part; the spring bolt shaft penetrates through the through hole to be connected to the main shell in a sliding mode and slides towards the auxiliary shell, and a first limiting ring and a second limiting ring which are matched with the locking part are arranged on the outer wall of the spring bolt shaft in a protruding mode. The coded disc brake lock has the advantages that the distance of the coded disc brake lock protruding out of a brake disc after the coded disc brake lock is installed is effectively reduced, and occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a password disc brake lock. Background Art

[0002] A disc brake lock is an anti-theft tool, generally used on the brake disc of a motorcycle or bicycle. It inserts the lock tongue into the brake disc hole to prevent the wheel from rotating.

[0003] Chinese patent document CN217581670U discloses a mechanical password disc brake lock, including a housing, a password lock assembly and an alarm assembly. The housing is provided with a password lock position for installing the password lock assembly and a lock slot for inserting the disc brake. The alarm assembly is in the housing. The password lock assembly includes a lock cylinder fixed in the password lock position, a lock tongue rod inserted in the lock cylinder, and at least two password disk groups stacked in sequence on the lock cylinder for controlling the extension and retraction of the lock tongue rod in the lock cylinder. The lock tongue rod is provided with a fixed lock pin, and the lock cylinder is provided with a through slot for lifting and lowering the fixed lock pin. Each password disk group includes A fixed lock disk is used to be sleeved on the lock cylinder and a movable lock disk is located below the fixed lock disk. The fixed lock disk and the movable lock disk are respectively provided with a first through hole and a second through hole for the lock pin on the lock tongue rod to pass through. A password lock disk is also sleeved on the movable lock disk for controlling the rotation of the movable lock disk. At least two bayonet holes are formed on the inner side wall of the password lock disk, and the movable lock disk is provided with at least one card block that cooperates with the bayonet hole. A window is provided on the shell body for dialing the password lock disk, and a reset spring is also provided between the lock tongue rod and the lock cylinder for automatically popping out the end of the lock tongue rod from the lock groove when the first through hole and the second through hole are aligned.

[0004] The disc brake lock in the above patent is locked by inserting the brake disc into the lock slot and then passing the lock tongue rod through the brake disc hole on the brake disc. Therefore, after the disc brake lock is installed and locked, the axial direction of the lock tongue rod is perpendicular to the brake disc. In addition, in order to improve its security, the combination lock assembly is provided with a multi-digit combination disc group. Therefore, the entire combination lock assembly is vertically arranged on one side of the brake disc and has a long length, which causes the disc brake lock to protrude a long distance after being installed on the brake disc and occupy a large space. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a password disc brake lock to solve the above problems.

[0006] The technical solution of the utility model is implemented as follows: a password disc brake lock, comprising:

[0007] A housing, the housing comprising a main housing and a secondary housing, the lower ends of the main housing and the secondary housing being integrally formed, and a connection gap for inserting a brake disc is provided between the main housing and the secondary housing;

[0008] A password lock assembly, wherein the password lock assembly is arranged on the main housing;

[0009] A lock core shaft, wherein the lock core shaft comprises a lock rod portion, a locking portion, and a pressing portion which are arranged in sequence, wherein the lock rod portion is slidably connected in the combination lock assembly and cooperates with the combination lock assembly, and a through hole is provided on the locking portion;

[0010] A lock tongue shaft, the lock tongue shaft passes through the through hole and is slidably connected to the main housing and slides toward the auxiliary housing, and a first limiting ring and a second limiting ring cooperating with the locking portion are protruded from the outer wall of the lock tongue shaft;

[0011] Wherein, a first spring is arranged between the lower end of the lock core shaft and the outer shell, and a second spring for pushing the lock tongue shaft away from the auxiliary shell is arranged between the lock tongue shaft and the main shell.

[0012] By adopting the above technical scheme, when the password on the combination lock assembly is correct, the lock core shaft can slide up and down freely. Under the action of the first spring, the inner wall of the through hole remains in contact with the outer wall of the lock tongue shaft and is located between the first limiting ring and the second limiting ring; when the brake disc is to be locked, the brake disc is inserted into the connecting gap, and then the lock tongue shaft is pressed to move toward the sub-shell body. The second limiting ring contacts the locking part and pushes the lock core shaft to overcome the force of the first spring and move downward for a distance. After the end of the lock tongue shaft passes through the brake disc hole, the locking part passes through the outer wall of the second limiting ring and is located on the side of the second limiting ring away from the first limiting ring, and is in contact with the outer wall of the second limiting ring. The lock core shaft can The lock tongue shaft is effectively limited and fixed, and then the lock core shaft is locked by the combination lock assembly to complete the locking; when unlocking is required, when the password on the combination lock assembly is correct, the pressing part of the lock core shaft is pressed to make the locking part disengage from the second limiting ring, and the lock tongue shaft moves away from the sub-shell under the action of the second spring, thereby completing the unlocking. The operation is very simple and convenient, and the longer combination lock assembly and lock core shaft are in a position parallel to the surface of the brake disc, which effectively reduces the distance that the combination disc brake lock protrudes from the brake disc after installation, occupies less space, and avoids direct contact between the lock core shaft and the brake disc, thereby effectively protecting the lock core shaft and the combination lock assembly.

[0013] The utility model is further configured to include:

[0014] A first accommodating cavity, which is vertically opened in the housing and communicates with the combination lock assembly;

[0015] a second accommodating cavity, the second accommodating cavity is transversely opened in the shell and communicated with the first accommodating cavity;

[0016] Among them, the lock core shaft is movably connected in the first accommodating cavity, and the upper end of the lock core shaft extends upward through the first accommodating cavity. The lock tongue shaft is movably connected in the second accommodating cavity, and both ends of the lock tongue shaft extend outward through the second accommodating cavity.

[0017] By adopting the above technical solution, the lock core shaft and the lock tongue shaft can be stably and effectively movably connected in the shell.

[0018] The utility model is further configured as follows: the first limiting ring is arranged on the side of the second limiting ring facing the auxiliary shell body, a spacing is arranged between the first limiting ring and the second limiting ring, the length of the through hole is not greater than the spacing, and the inner diameter of the through hole is greater than the outer diameters of the first limiting ring and the second limiting ring.

[0019] By adopting the above technical solution, the inner wall of the locking part can be tightly abutted between the first limiting ring and the second limiting ring, and at the same time, one side of the locking part can effectively abut against one side of the first limiting ring, limiting the axial movement of the lock tongue away from the auxiliary shell body.

[0020] The utility model is further configured as follows: the side of the first limiting ring and the second limiting ring away from the auxiliary shell body abuts against the side of the locking portion close to the auxiliary shell body, the side of the second limiting ring facing the first limiting ring is provided with a slope, and the lower edge of the end of the through hole away from the auxiliary shell body is set as a chamfer matching the slope.

[0021] By adopting the above technical solution, when locking is required, the lock tongue shaft is pressed to make the inclined surface of the second limiting ring contact and slide with the chamfer of the end of the through hole, so that the lock core shaft slides downward, and the lock tongue shaft can move toward the direction of the sub-shell body. At the same time, the second limiting ring passes through the through hole, so that the second limiting ring abuts against the locking part, thereby limiting the lock tongue shaft. The inclined surface can make the cooperation between the lock tongue shaft and the locking part more stable.

[0022] The utility model is further configured as follows: two ends of the second spring are respectively abutted against the first accommodating cavity and a side of the first limiting ring away from the second limiting ring.

[0023] By adopting the above technical solution, the second spring can effectively apply a force to the lock tongue shaft away from the sub-shell. When the locking part is not in contact with the lock tongue shaft, under the action of the second spring, the lock tongue shaft can quickly separate from the sub-shell, thereby completing the unlocking, the action is faster, and the use is more convenient.

[0024] The utility model is further configured to include:

[0025] The groove is arranged on the side of the auxiliary housing facing the main housing, the axis of the lock tongue shaft is coaxial with the axis of the groove, and the end of the lock tongue shaft can extend into the groove.

[0026] By adopting the above technical solution, the end of the lock tongue shaft extends into the groove, so that the connection between the lock tongue shaft and the auxiliary housing is more stable.

[0027] The utility model is further configured to include:

[0028] A third limiting ring, the third limiting ring is protrudingly arranged on the outer wall of the bolt shaft and is located on a side of the second limiting ring away from the first limiting ring, and the third limiting ring is located in the second accommodating cavity;

[0029] Wherein, the distance between the second limiting ring and the third limiting ring is not less than the length of the through hole.

[0030] By adopting the above technical solution, the third limiting ring can effectively prevent the lock tongue shaft from sliding out of the second accommodating cavity, and effectively limit the lock tongue shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0033] Figure 2 This is a structural cross-sectional view of the utility model when it is unlocked;

[0034] Figure 3 for Figure 2 The structural diagram of A in the figure;

[0035] Figure 4 This is a structural cross-sectional view of the utility model when locked;

[0036] Figure 5 It is a structural stereogram of the locking spindle in the utility model. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figure 1-Figure 5 As shown, the utility model discloses a password disc brake lock, comprising:

[0039] A housing 1, wherein the housing 1 comprises a main housing 10 and a secondary housing 11, wherein the lower ends of the main housing 10 and the secondary housing 11 are integrally formed, and a connection gap 12 for inserting a brake disc is provided between the main housing 10 and the secondary housing 11;

[0040] A password lock assembly 2, wherein the password lock assembly 2 is arranged on the main housing 10;

[0041] The lock core shaft 3 includes a lock rod portion 30, a locking portion 31, and a pressing portion 32 which are arranged in sequence. The lock rod portion 30 is slidably connected in the combination lock assembly 2 and cooperates with the combination lock assembly 2. The locking portion 31 is provided with a through hole 310;

[0042] The bolt shaft 4 passes through the through hole 310 and is slidably connected to the main housing 10 and slides toward the auxiliary housing 11. The outer wall of the bolt shaft 4 is provided with a first limiting ring 40 and a second limiting ring 41 that match the locking portion 31;

[0043] A first spring 5 is provided between the lower end of the lock core shaft 3 and the housing 1 , and a second spring 6 for pushing the lock tongue shaft 4 away from the auxiliary housing 11 is provided between the lock tongue shaft 4 and the main housing 10 .

[0044] By adopting the above technical scheme, when the password on the combination lock assembly 2 is correct, the lock core shaft 3 can slide up and down freely. Under the action of the first spring 5, the inner wall of the through hole 310 remains in contact with the outer wall of the lock tongue shaft 4, and is located between the first limiting ring 40 and the second limiting ring 41; when the brake disc is to be locked, the brake disc is inserted into the connecting gap 12, and then the lock tongue shaft 4 is pressed to move it toward the sub-shell 11. The second limiting ring 41 contacts the locking portion 31 and pushes the lock core shaft 3 to overcome the force of the first spring 5 and move downward for a distance. After the end of the lock tongue shaft 4 passes through the brake disc hole, the locking portion 31 passes through the outer wall of the second limiting ring 41 and is located on the side of the second limiting ring 41 away from the first limiting ring 40, and is in contact with the outer wall of the second limiting ring 41. The lock core shaft 3 can effectively limit and fix the lock tongue shaft 4, and then the lock core shaft 3 is locked by the combination lock assembly 2 to complete the locking; when unlocking is required, when the password on the combination lock assembly 2 is correct, the pressing portion 32 of the lock core shaft 3 is pressed to make the locking portion 31 disengage from the second limiting ring 41, and the lock tongue shaft 4 moves away from the sub-shell 11 under the action of the second spring 6, thereby completing the unlocking. The operation is very simple and convenient, and the longer combination lock assembly 2 and the lock core shaft 3 are in a position parallel to the surface of the brake disc, which effectively reduces the distance that the combination disc brake lock protrudes from the brake disc after installation, occupies less space, and avoids direct contact between the lock core shaft 3 and the brake disc, thereby effectively protecting the lock core shaft 3 and the combination lock assembly 2.

[0045] In the embodiment of the utility model, it also includes:

[0046] A first accommodating cavity 100, which is vertically opened in the housing 1 and communicated with the combination lock assembly 2;

[0047] A second accommodating chamber 101, which is transversely opened in the housing 1 and communicates with the first accommodating chamber 100;

[0048] Among them, the lock core shaft 3 is movably connected in the first accommodating cavity 100, and the upper end of the lock core shaft 3 extends upward through the first accommodating cavity 100. The lock tongue shaft 4 is movably connected in the second accommodating cavity 101, and both ends of the lock tongue shaft 4 extend outward through the second accommodating cavity 101.

[0049] By adopting the above technical solution, the lock core shaft 3 and the lock tongue shaft 4 can be stably and effectively movably connected in the housing 1.

[0050] In the embodiment of the utility model, the first limiting ring 40 is arranged on the side of the second limiting ring 41 facing the auxiliary shell 11, and a distance D is provided between the first limiting ring 40 and the second limiting ring 41. The length L of the through hole 310 is not greater than the distance D, and the inner diameter of the through hole 310 is greater than the outer diameter of the first limiting ring 40 and the second limiting ring 41.

[0051] By adopting the above technical solution, the inner wall of the locking portion 31 can be tightly abutted between the first limiting ring 40 and the second limiting ring 41, and at the same time, one side of the locking portion 31 can effectively abut against one side of the first limiting ring 40, thereby limiting the movement of the lock tongue shaft 4 in the direction away from the auxiliary shell 11.

[0052] In an embodiment of the utility model, the side of the first limiting ring 40 and the second limiting ring 41 away from the auxiliary shell 11 abuts against the side of the locking portion 31 close to the auxiliary shell 11, the side of the second limiting ring 41 facing the first limiting ring 40 is provided with a slope 410, and the lower edge of the end of the through hole 310 away from the auxiliary shell 11 is set as a chamfer 3100 matching the slope 410.

[0053] By adopting the above technical solution, when locking is required, the lock tongue shaft 4 is pressed to make the inclined surface 410 of the second limiting ring 41 contact and slide with the chamfer 3100 at the end of the through hole 310, so that the lock core shaft 3 slides downward, and the lock tongue shaft 4 can move toward the direction of the sub-shell 11. At the same time, the second limiting ring 41 passes through the through hole 310, so that the second limiting ring 41 abuts against the locking part 31, thereby limiting the lock tongue shaft 4. The inclined surface can make the lock tongue shaft 4 and the locking part 31 cooperate more stably.

[0054] In the embodiment of the utility model, two ends of the second spring 6 respectively abut against the first accommodating cavity 100 and a side of the first limiting ring 40 away from the second limiting ring 41 .

[0055] By adopting the above technical solution, the second spring 6 can effectively apply a force to the lock tongue shaft 4 away from the sub-housing 11. When the locking portion 31 is not in contact with the lock tongue shaft 4, under the action of the second spring 6, the lock tongue shaft 4 can quickly separate from the sub-housing 11, thereby completing the unlocking, the action is faster, and the use is more convenient.

[0056] In the embodiment of the utility model, it also includes:

[0057] The groove 110 is arranged on the side of the auxiliary housing 11 facing the main housing 10 . The axis of the lock tongue shaft 4 is coaxial with the axis of the groove 110 . The end of the lock tongue shaft 4 can extend into the groove 110 .

[0058] By adopting the above technical solution, the end of the bolt shaft 4 extends into the groove 110, so that the connection between the bolt shaft 4 and the auxiliary housing 11 is more stable.

[0059] In the embodiment of the utility model, it also includes:

[0060] A third limiting ring 42, the third limiting ring 42 is protrudingly provided on the outer wall of the bolt shaft 4 and is located on a side of the second limiting ring 41 away from the first limiting ring 40, and the third limiting ring 42 is located in the second accommodating cavity 101;

[0061] The distance between the second limiting ring 41 and the third limiting ring 42 is not less than the length L of the through hole 310 .

[0062] By adopting the above technical solution, the third limiting ring 42 can effectively prevent the lock tongue shaft 4 from sliding out of the second accommodating cavity 101, and effectively limit the lock tongue shaft 4.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A password disc brake lock, characterized in that: include, A housing (1), the housing (1) comprising a main housing (10) and a secondary housing (11), the lower ends of the main housing (10) and the secondary housing (11) being integrally formed, and a connection gap (12) for inserting a brake disc is provided between the main housing (10) and the secondary housing (11); A combination lock assembly (2), wherein the combination lock assembly (2) is arranged on the main housing (10); A lock core shaft (3), the lock core shaft (3) comprising a lock rod portion (30), a locking portion (31), and a pressing portion (32) which are arranged in sequence, the lock rod portion (30) being slidably connected in the combination lock assembly (2) to cooperate with the combination lock assembly (2), and a through hole (310) being provided on the locking portion (31); A lock tongue shaft (4), the lock tongue shaft (4) passes through the through hole (310) and is slidably connected to the main housing (10) and slides toward the auxiliary housing (11), and a first limiting ring (40) and a second limiting ring (41) that match the locking portion (31) are protruded from the outer wall of the lock tongue shaft (4); A first spring (5) is provided between the lower end of the lock core shaft (3) and the outer shell (1), and a second spring (6) for pushing the lock tongue shaft (4) away from the auxiliary shell (11) is provided between the lock tongue shaft (4) and the main shell (10).

2. A password disc brake lock according to claim 1, characterized in that: Also includes: A first accommodating cavity (100), the first accommodating cavity (100) being vertically opened in the housing (1) and being in communication with the combination lock assembly (2); A second accommodating chamber (101), the second accommodating chamber (101) being transversely opened in the housing (1) and communicating with the first accommodating chamber (100); The lock core shaft (3) is movably connected in the first accommodating cavity (100), and the upper end of the lock core shaft (3) passes through the first accommodating cavity (100) and extends upward; the lock tongue shaft (4) is movably connected in the second accommodating cavity (101), and both ends of the lock tongue shaft (4) pass through the second accommodating cavity (101) and extend outward.

3. A password disc brake lock according to claim 1, characterized in that: The first limiting ring (40) is arranged on the side of the second limiting ring (41) facing the auxiliary housing (11), a spacing (D) is provided between the first limiting ring (40) and the second limiting ring (41), a length (L) of the through hole (310) is not greater than the spacing (D), and an inner diameter of the through hole (310) is greater than an outer diameter of the first limiting ring (40) and the second limiting ring (41).

4. A password disc brake lock according to claim 1, characterized in that: The side of the first limiting ring (40) and the second limiting ring (41) away from the auxiliary shell (11) abuts against the side of the locking portion (31) close to the auxiliary shell (11); the side of the second limiting ring (41) facing the first limiting ring (40) is provided with an inclined surface (410); and the lower edge of one end of the through hole (310) away from the auxiliary shell (11) is provided as a chamfer (3100) matching the inclined surface (410).

5. A password disc brake lock according to claim 2, characterized in that: Two ends of the second spring (6) respectively abut against the first accommodating cavity (100) and a side of the first limiting ring (40) away from the second limiting ring (41).

6. A password disc brake lock according to claim 1, characterized in that: Also includes: A groove (110) is provided on a side of the auxiliary housing (11) facing the main housing (10); the axis of the lock tongue shaft (4) is coaxial with the axis of the groove (110); and the end of the lock tongue shaft (4) can extend into the groove (110).

7. A password disc brake lock according to claim 2, characterized in that: Also includes: A third limiting ring (42), the third limiting ring (42) being protrudingly arranged on the outer wall of the bolt shaft (4) and being located on a side of the second limiting ring (41) away from the first limiting ring (40), the third limiting ring (42) being located in the second accommodating cavity (101); Wherein, the distance between the second limiting ring (41) and the third limiting ring (42) is not less than the length (L) of the through hole (310).

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