Password trunk lock for vehicle

Abstract

The utility model relates to the technical field of locks, in particular to a coded trunk lock for a vehicle. The coded lock comprises a shell, a lock cylinder installed on the shell and a code wheel mechanism installed in the shell, a lock hook is arranged at one end of the lock cylinder, the code wheel mechanism comprises a wheel shaft capable of reciprocating relative to the shell, an unlocking mechanism is arranged between the lock cylinder and the code wheel mechanism, and the end, away from the lock cylinder, of the wheel shaft is slidably connected with a code adjusting piece in linkage fit with the code wheel mechanism. A code adjusting inclined face is arranged on the code adjusting piece, a pushing piece is installed at the end, away from the operation face of the code wheel mechanism, of the shell, a pushing inclined face is arranged at one end of the pushing piece, and the end, away from the pushing inclined face, of the pushing piece penetrates through the shell and is in sliding connection with the shell. The limiting head is provided with a limiting inclined surface; after the prior art is improved, the code adjusting mechanism is hidden in the tail box, so that the exterior is relatively attractive and relatively safe; and the unlocking structure is relatively simple and is not easy to block during operation.

Description

Technical Field

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

[0002] A Chinese patent document with publication number CN104727638B discloses a luggage combination lock, comprising a bottom shell, a front shell, a push-piece, a combination wheel mechanism and a lock hook that can be buckled with a zipper head, wherein the combination wheel mechanism, the lock hook and the push-piece are all arranged in a containing space formed by the bottom shell and the front shell, the front shell is provided with a push-piece hole for the push-piece to extend out, and the push-piece is slidably connected to the push-piece hole, that is, the push-piece can slide back and forth relative to the front shell, and a code adjustment mechanism is provided at one end of the combination wheel mechanism away from the push-piece; however, the code adjustment mechanism and the combination wheel mechanism of the above-mentioned luggage combination lock are located on the same side, that is, exposed to the outside, which is neither beautiful nor safe; in addition, the unlocking method by sliding the push-piece horizontally is not only complex in structure but also prone to uneven force and thus causing jamming.

[0003] Therefore, it is necessary to improve the deficiencies in the above prior art. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a vehicle password trunk lock in view of the deficiencies of the above-mentioned prior art, so as to solve the problems in the prior art that the code adjustment mechanism and the password wheel mechanism are located on the same side, which is neither beautiful nor safe, and the unlocking method by pushing and sliding horizontally is not only complex in structure but also prone to uneven force causing jamming.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle password trunk lock, comprising a shell, a lock core installed on the shell and a password wheel mechanism installed in the shell, the password wheel mechanism comprising a wheel axle that can reciprocate relative to the shell, an unlocking mechanism is provided between the lock core and the password wheel mechanism, an end of the wheel axle away from the lock core is slidably connected to a code adjusting member that cooperates with the password wheel mechanism, the code adjusting member is provided with a code adjusting inclined surface, a pushing member is installed at one end of the shell away from the operating surface of the password wheel mechanism, one end of the pushing member is provided with a pushing inclined surface that fits the code adjusting inclined surface, and the end of the pushing member away from the pushing inclined surface passes through the shell and is slidably connected to the shell.

[0006] By adopting the above technical solution, when the password needs to be changed, the password must be entered first, then the trunk is unlocked and opened, and the pushing member is operated from inside the trunk so that the pushing inclined surface of the pushing member squeezes the adjusting inclined surface of the coding member, prompting the coding member to move and cooperate with the coding wheel mechanism to change the password; since the pushing member is located inside the trunk, the combination lock is not only relatively beautiful in appearance, but also the hidden coding operation is relatively safe.

[0007] The above technical solution is further configured as follows: the unlocking mechanism includes a limit head arranged at one end of the wheel axle close to the lock core and an unlocking groove arranged on the side of the lock core, the limit head is provided with a limit inclined surface that fits closely with the unlocking groove, and the end of the wheel axle close to the lock core is sleeved with a return spring that abuts against one side of the limit head.

[0008] By adopting the above technical solution, when unlocking, the lock core is operated so that the fitting part of the unlocking groove and the limiting inclined surface squeezes the limiting inclined surface, so that the wheel axle squeezes the return spring and moves away from the lock core, and at the same time the lock core drives the lock hook to move out of the lock buckle and unlock; when the lock core is released, under the action of the elastic force of the return spring, the limiting head squeezes the lock core in the opposite direction, so that the lock core is reset to the locked position; the above unlocking method is not only simple in structure, but also pushes the wheel axle by means of inclined surface extrusion, which is not easy to get stuck.

[0009] The above technical solution is further configured as follows: the code wheel mechanism also includes a plurality of code disks and a transmission shaft installed in the center of the code disk, the outer circumference of the transmission shaft is provided with a snap-in block, the inner circumference of the code disk is provided with a plurality of snap-in grooves that can match the snap-in blocks, the code disk and the transmission shaft are snap-fitted through the snap-in grooves and the snap-in blocks, a through hole is provided in the center of the transmission shaft, an unlocking slot is provided around the through hole, a limit block that matches the unlocking slot clearance is provided on the wheel axle, the wheel axle passes through the through hole to connect all the transmission shafts in series, the code adjustment part abuts against the transmission shaft, and the return spring abuts against the transmission shaft at one end away from the limit head.

[0010] When the lock is unlocked, the lock core is operated to displace the wheel axle to complete the unlocking operation. After the lock core is released, the return spring can return the wheel axle to its original position. When the password is modified, the password must be adjusted correctly first, and then the push member is operated to drive the code adjusting member to squeeze the transmission shaft, and the transmission shaft squeezes the return spring, and the limit block slides into the unlocking slot. The transmission shaft finds axial displacement relative to the password disk, so that the card slot and the card block are disengaged, so that the code disk can be rotated to change the deflection angle of the transmission shaft and the code disk to match different passwords. After that, the push member is released, and the drive shaft, the code adjusting member and the push member are reset again under the action of the return spring, and the card slot and the card block are re-engaged, and the password modification is completed.

[0011] The above technical solution is further configured as follows: a password disk hole is provided on one side of the shell, a password disk slot is provided on the shell below the password disk hole, and the password disk is movably installed between the password disk hole and the password disk slot.

[0012] By adopting the above technical solution, the password disk is axially fixed through the password disk hole and the password disk slot, and the password disk can be manually rotated through the password disk hole to unlock or modify the password.

[0013] The above technical solution is further configured as follows: a limiting groove slidably connected to the limiting head is provided near the limiting head of the shell, and a limiting baffle is provided on one side of the limiting head near the return spring, and the limiting baffle can abut against the side of the shell at the limiting groove.

[0014] By adopting the above technical solution, the limiting slide groove can make the limiting head more stable when being squeezed, and the limiting baffle can prevent the limiting head from excessive displacement.

[0015] The above technical solution is further configured as follows: an axle limit seat is provided at one end of the shell near the pushing member, a limit hole is provided on the axle limit seat which matches the axle clearance, and a limit groove is also provided in the axle limit seat which can switch the limit of the code member and the pushing member.

[0016] By adopting the above technical solution, the wheel axle is limited by the limiting hole on the wheel axle limiting seat, so that the movement of the wheel axle can be more stable and smooth; similarly, the limiting groove can make the code adjustment member and the pushing member more stable when moving in coordination and less prone to misalignment.

[0017] The above technical solution is further configured as follows: a plurality of positioning grooves are provided on the outer peripheral surface of the code disk, a positioning elastic member is installed on one side of the code disk groove, and a positioning portion abutting against the positioning groove is provided on the positioning elastic member.

[0018] By adopting the above technical solution, the positioning portion of the positioning elastic member cooperates with the positioning groove, so that when the code disk is rotated, it can be easily aligned with the corresponding unlocking position, and the stability of the code disk can also be improved.

[0019] The above technical solution is further configured as follows: a mounting hole that matches the lock core clearance is provided on one side of the shell, a lock hook is provided on one end of the lock core, and a lock hole is provided on one side of the shell close to the lock hook.

[0020] By adopting the above technical solution, when locking or unlocking, the lock core can slide along the installation hole to change the position of the lock hook, and the lock catch is inserted into the lock hole and cooperates with the lock hook to complete locking or unlocking.

[0021] The above technical solution is further configured as follows: the shell includes a first half shell and a second half shell, and the first half shell and the second half shell are detachably connected.

[0022] By adopting the above technical solution, the first half shell and the second half shell can be detachably connected, which facilitates the disassembly and installation of internal components.

[0023] The beneficial effects achieved by the utility model are as follows: the code adjustment mechanism is hidden inside the trunk, which is not only relatively beautiful in appearance but also relatively safe; the unlocking structure is relatively simple and the operation is not prone to jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 It is a top view of the structure of an embodiment of the utility model;

[0026] Figure 3 yes Figure 2 Schematic diagram of the cross section of AA;

[0027] Figure 4 It is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the lock core in the embodiment of the utility model;

[0029] Figure 6 It is a schematic diagram of the structure of the code disk and the transmission shaft in the embodiment of the utility model. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] like Figure 1-6As shown in, a car password trunk lock comprises a shell 1 and a lock core 2 installed on the shell 1, three password disk holes 11 are provided on one side of the shell 1, and a password disk slot 12 is provided on the shell 1 below the password disk hole 11, and a password disk 3 is movably installed between the password disk hole 11 and the password disk slot 12, and a transmission shaft 4 is installed at the center of the password disk 3, and a clamping block 40 is provided on the outer circumference of the transmission shaft 4, and a plurality of clamping grooves 30 that can match the clamping block 40 are provided on the inner circumference of the password disk 3. The password disk 3 and the transmission shaft 4 are clamped together by the clamping grooves 30 and the clamping blocks 40 to achieve circumferential fixation of the transmission shaft 4, and a through hole 41 is provided in the center of the transmission shaft 4, and the through hole 41 is connected to a wheel shaft 5 that connects all the transmission shafts 4 in series, and both ends of the wheel shaft 5 are installed on the shell 1 and can reciprocate relative to the shell 1 along its axial direction, and an unlocking slot 42 is provided on the periphery of the through hole 41, and a limit block 50 that is clearance-matched with the unlocking slot 42 is provided on the wheel shaft 5. A limit head 51 is provided near one end of the lock core 2, an unlocking groove 20 is provided on the side of the lock core 2, and a limit inclined surface 511 is provided on the limit head 51 to fit the unlocking groove 20. When the password is correct, the lock core 2 can be pressed to make the unlocking groove 20 squeeze the limit inclined surface 511 to move the axle 5. When the password is incorrect, the axle 5 cannot move, and the lock core 2 cannot be pressed and cannot be unlocked. One end of the axle 5 near the limit head 51 is sleeved with one end abutting against the transmission shaft 4 and the other end abutting against the limit head 5 1; the end of the wheel shaft 5 away from the lock cylinder 2 is provided with a code adjusting member 7 axially slidably connected to the wheel shaft 5, and a pushing member 8 is installed at the end of the housing 1 away from the password disk hole 11. One side of the code adjusting member 7 abuts against the side of the transmission shaft 4, and a code adjusting inclined surface 70 is provided on the code adjusting member 7. One end of the pushing member 8 is provided with a pushing inclined surface 80 that fits the code adjusting inclined surface 70. The end of the pushing member 8 away from the pushing inclined surface 80 passes through the housing 1 and is slidably connected to the housing 1.

[0032] A limiting slot 13 slidably connected to the limiting head 51 is provided near the limiting head 51 of the shell 1, and a limiting baffle 512 is provided on the side of the limiting head 51 near the return spring 6. The limiting baffle 512 can abut against the side of the shell 1 at the limiting slot 13. An axle limiting seat 14 is provided at one end of the shell 1 near the pushing member 8. A limiting hole 140 that is clearance-matched with the axle 5 is provided on the axle limiting seat 14. A limiting slot 141 that can limit the code member 7 and the pushing member 8 is also provided in the axle limiting seat 14.

[0033] A plurality of positioning grooves 31 are provided on the outer peripheral surface of the code disk 3 . A positioning elastic member 9 is installed on one side of the code disk groove 12 . A positioning portion 90 abutting against the positioning groove 31 is provided on the positioning elastic member 9 .

[0034] A mounting hole 15 is provided on one side of the housing 1 to match the clearance of the lock core 2, a lock hook 21 is provided on one end of the lock core 2, and a lock hole 16 is provided on the side of the housing 1 close to the lock hook 21. When locking or unlocking, the lock core 2 can slide along the mounting hole 15 to change the position of the lock hook 21, and the lock buckle (not shown in the figure) is inserted into the lock hole 16 to match the lock hook 21 to complete locking or unlocking.

[0035] The housing 1 comprises a first half housing 17 and a second half housing 18 , and the first half housing 17 and the second half housing 18 are threadedly connected by bolts, so as to facilitate the disassembly and installation of internal components.

[0036] In the above embodiment, when the password needs to be changed, all the code disks 3 are first rotated to the correct password so that the unlocking slot 42 matches the position of the limit block 50. After the trunk is opened, the pushing member 8 inside the trunk is continuously pressed so that the pushing inclined surface 80 squeezes the code adjusting inclined surface 70, so that the code adjusting member 7 moves toward the transmission shaft 4 and squeezes the transmission shaft 4. Further squeezing drives the other transmission shafts 4 to disengage from the engagement with the code disk 3, and then the code disk 3 is rotated to change the password. After the password is changed, the pushing member 8 is released. Under the elastic force of the return spring 6, the transmission shaft 4 is reset and re-engaged with the code disk 3, and the code adjusting member 7 is squeezed in the opposite direction. The code adjusting member 7 squeezes the pushing member 8, so that the pushing member 8 is relatively The shell 1 slides and resets, thereby completing a password change. Since the pushing member 8 is located inside the trunk, the password lock is not only relatively beautiful in appearance but also relatively safe in the hidden code adjustment operation. In addition, when unlocking, the lock core 2 is pressed so that the fitting part of the unlocking groove 20 and the limiting inclined surface 511 squeezes the limiting inclined surface 511, so that the wheel axle 5 squeezes the return spring 6 and moves away from the lock core. At the same time, the lock core 2 drives the lock hook 21 to move out of the lock buckle and unlock. When the lock core is released, under the elastic force of the return spring 6, the limiting head 51 squeezes the lock core 2 in the reverse direction, so that the lock core 2 is reset to the locked position. The above-mentioned unlocking method is not only simple in structure, but also pushes the wheel axle by means of inclined surface extrusion, which is not easy to get stuck.

Claims

1. A vehicle trunk lock with code, comprising a housing, a lock cylinder mounted on the housing, and a code wheel mechanism mounted in the housing, wherein the code wheel mechanism comprises a wheel axle capable of reciprocating relative to the housing, and an unlocking mechanism is arranged between the lock cylinder and the code wheel mechanism, characterized in that: The end of the wheel axle away from the lock cylinder is slidably connected with a code adjusting piece that cooperates with the code wheel mechanism, and the code adjusting piece is provided with a code adjusting inclined surface. The end of the shell away from the operating surface of the code wheel mechanism is equipped with a pushing piece, and one end of the pushing piece is provided with a pushing inclined surface that fits the code adjusting inclined surface. The end of the pushing piece away from the pushing inclined surface passes through the shell and is slidably connected to the shell.

2. A vehicle password trunk lock according to claim 1, characterized in that: The unlocking mechanism includes a limit head arranged at one end of the wheel axle close to the lock core and an unlocking groove arranged on the side of the lock core. The limit head is provided with a limit inclined surface that fits the unlocking groove. The end of the wheel axle close to the lock core is sleeved with a return spring that abuts against one side of the limit head.

3. A vehicle password trunk lock according to claim 2, characterized in that: The code wheel mechanism also includes a plurality of code disks and a transmission shaft installed in the center of the code disk. The outer circumference of the transmission shaft is provided with a clamping block, and the inner circumference of the code disk is provided with a plurality of clamping grooves that can match the clamping block. The code disk and the transmission shaft are clamped together through the clamping grooves and the clamping blocks. A through hole is provided in the center of the transmission shaft, and an unlocking slot is provided outside the through hole. A limit block that matches the unlocking slot is provided on the wheel axle. The wheel axle passes through the through hole to connect all the transmission shafts in series, the code adjustment part abuts against the transmission shaft, and the return spring abuts against the transmission shaft at one end away from the limit head.

4. The vehicle password trunk lock according to claim 3, characterized in that: A password disk hole is provided on one side of the shell, a password disk slot is provided on the shell below the password disk hole, and the password disk is movably installed between the password disk hole and the password disk slot.

5. The vehicle password trunk lock according to claim 4, characterized in that: The shell is provided with a limiting sliding groove slidably connected to the limiting head near the limiting head, and the limiting head is provided with a limiting baffle on one side close to the return spring, and the limiting baffle can abut against the side surface of the shell at the limiting sliding groove.

6. The vehicle password trunk lock according to claim 5, characterized in that: The shell body is provided with an axle limiting seat at one end close to the pushing member, the axle limiting seat is provided with a limiting hole matched with the axle clearance, and the axle limiting seat is also provided with a limiting groove capable of interchanging the limiting positions of the code member and the pushing member.

7. A vehicle password trunk lock according to any one of claims 4 to 6, characterized in that: The outer peripheral surface of the code disk is provided with a plurality of positioning grooves, a positioning elastic member is installed on one side of the code disk groove, and a positioning portion abutting against the positioning groove is provided on the positioning elastic member.

8. The vehicle password trunk lock according to claim 7, characterized in that: A mounting hole that matches the lock core clearance is provided on one side of the shell, a lock hook is provided on one end of the lock core, and a lock hole is provided on one side of the shell close to the lock hook.

9. The vehicle password trunk lock according to claim 8, characterized in that: The housing includes a first half housing and a second half housing, and the first half housing and the second half housing are detachably connected.

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