Customs universal lockset for tool box

Abstract

The tool box customs universal lock comprises a lock body and a lock rod assembly, the lock rod assembly is arranged on one side of the lock body, a password wheel assembly, a wheel shaft assembly, a lock cylinder assembly and a spring bolt assembly are arranged in the lock body, the lock cylinder assembly is arranged in the middle of the lower portion of the lock body, and the upper portion of the lock cylinder assembly is connected with the lower portion of the spring bolt assembly. The upper portion of the password wheel assembly is in linkage with a button through a wheel shaft assembly, and one end of the button is arranged in the lock body and connected with the upper portion of the spring bolt assembly. The spring bolt assembly comprises a spring bolt, a spring bolt hook is arranged at the end of the spring bolt, the lock rod assembly comprises a lock rod with an annular groove in the lower portion, and the spring bolt hook is connected with or separated from the annular groove in a hooked mode. The tensile resistance of the spring bolt is enhanced by improving the spring bolt structure and the clamping hook type structure, the spring bolt assembly can be dragged upwards along with the lock rod under external force application, the tensile force is increased due to the fact that the contact face of the spring bolt and the annular groove of the lock rod is increased, the firmness of the lock body is further improved, and compared with similar products, the tensile force is higher, and the overall damage resistance of the lock is higher.

Description

Technical Field

[0001] This utility model relates to the field of locks, and in particular to a general-purpose lock for toolboxes used in customs. Background Technology

[0002] Patent CN202420289826.3 discloses a dual-channel padlock, including a lock body and a locking rope. One end of the locking rope is fixedly connected to the lock body, and the other end of the locking rope is equipped with a lock head. The lock body is equipped with a combination lock assembly and a customs lock assembly. The lock body is equipped with a lock head slot to cooperate with the lock head. The lock body is equipped with a lock rod and a lock plate. The lock plate is equipped with an annular lock opening. One end of the lock plate is fixed to the lock body, and the other end of the lock plate is connected to the lock rod. The lower end of the lock rod is equipped with a return spring. The front end of the lock head is a columnar structure. The columnar structure of the lock head is equipped with a radially inwardly recessed annular lock groove. The lock head passes through the annular lock opening to cooperate with the lock plate. The combination lock assembly includes a combination lock cylinder and a combination lock rod. The upper end of the combination lock rod is equipped with a lock rod bevel and a return spring. The customs lock assembly includes a customs lock cylinder and a customs lock sleeve. The customs lock sleeve is equipped with a spiral bevel. The lock rod is equipped with a beveled protrusion and a beveled groove. The lock body is equipped with an opening button. The opening button is equipped with a first bevel and a second bevel. The lock head plate has a complex structure, making it difficult to open smoothly, and the overall lock tongue assembly has weak load-bearing capacity.

[0003] Based on the above, this utility model proposes a general-purpose lock for toolboxes to effectively solve the above problems. Utility Model Content

[0004] In order to solve the problems existing in the background art, this utility model provides a toolbox customs universal lock.

[0005] The present invention adopts the following technical solution:

[0006] A general-purpose lock for toolboxes, comprising a lock body and a lock bar assembly, wherein the lock bar assembly is located on one side of the lock body, and the lock body contains a combination wheel assembly, a wheel axle assembly, a lock cylinder assembly, and a lock tongue assembly. The lock cylinder assembly is located in the lower middle part of the lock body and its upper part is connected to the lower part of the lock tongue assembly. The combination wheel assembly is located on the side of the lock cylinder assembly, and the upper part of the combination wheel assembly is linked to a button through a wheel axle assembly. One end of the button is located in the lock body and is connected to the upper part of the lock tongue assembly. The lock tongue assembly includes a lock tongue with a lock tongue hook at its end. The lock bar assembly includes a lock bar with a ring groove at its lower part, and the lock tongue hook is engaged with or disengaged from the ring groove.

[0007] Furthermore, the latch is inclined within the lock body, and the upper side of the latch hook is a slope.

[0008] Furthermore, the latch assembly also includes a latch return spring and a connecting rod. One end of the latch return spring is connected to the bottom of the latch, and the other end is connected to the lock body. The lower part of the latch is connected to the connecting rod.

[0009] Furthermore, a latch boss is provided at the lower part of the latch, an upper hook is provided at the upper end of the connecting rod, and a lower hook is provided at the lower end of the connecting rod. The upper hook is connected to the latch boss, and the lower hook is connected to the lock cylinder assembly.

[0010] Furthermore, the button has a button gripper at the front end, and the lock tongue has grooves on both sides of the middle part. The gripper is located in the groove to push the lock tongue down, and the button has a button reset spring on the front side of the upper part.

[0011] Furthermore, the locking rod assembly also includes a top ball and a top ball return spring. The top ball is fixed to the bottom of the locking rod, and one end of the top ball return spring is sleeved on the lower part of the top ball, while the other end is fixed to the lock body.

[0012] Furthermore, the combination wheel assembly includes an inner combination wheel, an outer combination wheel, and a spring. The inner combination wheel is located inside the lock body, and its upper part is connected to the bottom of the axle wheel assembly. The spring is fixed to one side of the inner combination wheel inside the lock body, and the outer combination wheel is sleeved on the outside of the inner combination wheel and its side contacts the spring.

[0013] Furthermore, the wheel and axle assembly includes a wheel and axle and axle return spring. The front end of the wheel and axle is engaged with the middle of the button, and the wheel and axle return spring is sleeved on the lower part of the wheel and axle.

[0014] Furthermore, the lock cylinder assembly includes a lock cylinder, lock cylinder blades, and blade springs. The upper part of the lock cylinder is hooked to the lower hook, and the lock cylinder contains lock cylinder blades and blade springs connected to the lock cylinder blades.

[0015] Furthermore, the upper part of the lock rod is provided with a lock rod connecting cap, and the end of the steel cable on the side of the lock rod connecting cap is connected, and the other end of the steel cable is fixed to the upper side of the lock body.

[0016] This utility model provides a toolbox customs-standard lock: by improving the structure of the latch, the hook-type structure strengthens the tensile strength of the latch, and under the application of external force, the latch assembly will be dragged upward with the lock rod. The increased contact area between the latch and the lock rod increases the tensile force, further increasing the robustness of the lock body. Compared with similar products, it has stronger tensile strength and higher overall resistance to damage, effectively enhancing the impact resistance and security of the locking mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the present invention.

[0019] The numbers marked in the diagram represent the following in order: 1-lock bar, 2-top ball, 3-top ball return spring, 4-lock tongue, 5-lock tongue return spring, 6-connecting rod, 7-lock cylinder, 8-lock cylinder blade, 9-blade spring, 10-button, 11-button return spring, 12-wheel axle, 13-wheel axle return spring, 14-inner combination wheel, 15-outer combination wheel, 16-spring, 17-steel cable, 18-lock bar connecting cap, 19-lock body, 20-ring groove, 21-lock tongue hook, 22-button gripper, 23-groove, 24-lock tongue boss, 25-upper hook, 26-lower hook. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] See attached document Figure 1-2 A general-purpose lock for toolboxes, comprising a lock body 19 and a lock rod assembly, wherein the lock rod assembly is located on one side of the lock body 19, and the lock body 19 contains a combination wheel assembly, a wheel axle 12 assembly, a lock cylinder assembly and a lock tongue assembly, wherein the lock cylinder assembly is located in the lower middle part of the lock body 19 and its upper part is connected to the lower part of the lock tongue assembly, wherein the combination wheel assembly is located on the side of the lock cylinder assembly, and the upper part of the combination wheel assembly is linked to a button 10 through the wheel axle 12 assembly, wherein one end of the button 10 is located inside the lock body 19 and is connected to the upper part of the lock tongue assembly; the lock tongue assembly includes a lock tongue 4, wherein the end of the lock tongue 4 is provided with a lock tongue hook 21, and the lock rod assembly includes a lock rod 1 with a ring groove 20 at the lower part, wherein the lock tongue hook 21 is hooked or released from the ring groove 20.

[0022] The latch 4 is inclined within the lock body 19, and the upper side of the latch hook 21 is sloped. Under external force, the latch assembly will be dragged upward with the lock rod 1. The increased contact area between the latch hook 21 and the annular groove 20 of the lock rod 1 increases the tensile force, thereby increasing the stability of the lock body 19. Preferably, the inclination angle of the latch 4 is about 40-50 degrees.

[0023] The latch assembly also includes a latch return spring 5 and a connecting rod 5. One end of the latch return spring 5 is connected to the bottom of the latch 4, and the other end is connected to the inside of the lock body 19. The lower part of the latch 4 is connected to the connecting rod 5.

[0024] The lower part of the latch 4 is provided with a latch boss 24, the upper end of the connecting rod 5 is provided with an upper hook 25, and the lower end of the connecting rod 5 is provided with a lower hook 26. The upper hook 25 is hooked to the latch boss 24, and the lower hook 26 is hooked to the lock cylinder assembly.

[0025] The button 10 has a button gripper 22 at its front end, and the latch 4 has grooves 23 on both sides of its middle section. The gripper is positioned in the grooves 23 to push the latch 4 downward. The button 10 has a button return spring 11 on its upper front side. The gripper structure makes its connection with the latch 4 more stable and the pushing smoother.

[0026] The locking rod assembly also includes a top bead 2 and a top bead return spring 3. The top bead 2 is fixed to the bottom of the locking rod 1, and one end of the top bead return spring 3 is sleeved on the lower part of the top bead 2, while the other end is fixed inside the lock body 19.

[0027] The combination wheel assembly includes an inner combination wheel 14, an outer combination wheel 15, and a spring 16. The inner combination wheel 14 is located inside the lock body 19. The upper part of the inner combination wheel 14 is connected to the bottom of the axle wheel assembly. The spring 16 is fixed to one side of the inner combination wheel 14 inside the lock body 19. The outer combination wheel 15 is sleeved on the outside of the inner combination wheel 14 and its side contacts the spring 16.

[0028] The wheel axle 12 assembly includes a wheel axle 12 and a wheel axle return spring 13. The front end of the wheel axle 12 is engaged with the middle of the button 10, and the wheel axle return spring 13 is sleeved on the lower part of the wheel axle 12.

[0029] The lock cylinder assembly includes a lock cylinder 7, a lock cylinder blade 8, and a blade spring 9. The upper part of the lock cylinder 7 is hooked to the lower hook 26, and the lock cylinder 7 is provided with a lock cylinder blade 8 and a blade spring 9 connected to the lock cylinder blade 8.

[0030] The upper part of the locking rod 1 is provided with a locking rod connecting cap 18, and the end of the steel cable 17 on the side of the locking rod connecting cap 18 is connected, and the other end of the steel cable 17 is fixed to the upper side of the lock body 19.

[0031] In common customs locks, the bolt 4 disengages when the pulling force is around 500N. In contrast, this lock only disengages when the bolt 4 is subjected to a pulling force of around 1500N, which greatly improves the security of the lock.

[0032] This lock features a simple and compact structure, making it easy for workers to install and faster. Its embedded lock body with a 19-inch design can be completed in just 10 seconds. In contrast, traditional latches with a 4-inch bolt are relatively small and difficult to assemble by hand, sometimes requiring special tools, which affects installation efficiency. On average, assembling a 4-inch bolt takes 20-40 seconds.

[0033] The locking process of the lock is as follows:

[0034] The locking rod 1 is inserted entirely into the lock body 19 hole. The top bead 2 at the lower part of the locking rod 1 is pressed downwards against the top bead return spring 3, while the upper end of the latch 4 retracts, creating a gap that allows the locking rod 1 to move downwards. When the movement stops, the latch spring at the lower end of the latch 4 returns the latch 4 to its original position, and the top bead spring at the lower part of the top bead 2 also returns to its original position, causing the latch hook 21 to contact and hook into the annular groove 20 on the locking rod 1. The latch 4 experiences even force and the force is distributed, increasing the tension due to the increased contact area between the latch 4 and the annular groove 20 of the locking rod 1.

[0035] The lock can be opened in the following ways:

[0036] When the password is incorrect: the key pin of the password outer wheel 15 on the axle 12 cannot avoid the key groove on the inner wheel, so the button 10 cannot be pressed.

[0037] When the password is correct: the key pin of the outer password wheel 15 on the axle 12 avoids the key groove on the inner wheel, the button 10 presses the bolt 4, the bolt assembly moves backward, and the lock can be opened.

[0038] Key unlocking: Turn the key, and the correct toothed mechanism will rotate the lock cylinder 7, pulling the bolt 4 and lever 5 to unlock.

[0039] It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "bottom", "bottom surface", "upper part", "middle part", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A general-purpose lock for toolboxes, comprising a lock body and a lock bar assembly, characterized in that, The locking rod assembly is located on one side of the lock body. The lock body contains a combination wheel assembly, a wheel axle assembly, a lock cylinder assembly, and a bolt assembly. The lock cylinder assembly is located in the lower middle part of the lock body, and its upper part is connected to the lower part of the bolt assembly. The combination wheel assembly is located on the side of the lock cylinder assembly. The upper part of the combination wheel assembly is linked to the button through the wheel axle assembly. One end of the button is located in the lock body and is connected to the upper part of the bolt assembly. The bolt assembly includes a bolt, and the end of the bolt is provided with a bolt hook. The locking rod assembly includes a locking rod with a ring groove at the lower part. The bolt hook is engaged with or disengaged from the ring groove.

2. The toolbox customs-standard lock according to claim 1, characterized in that, The latch is inclined within the lock body, and the upper side of the latch hook is a slope.

3. A toolbox customs-standard lock according to claim 1 or 2, characterized in that, The latch assembly also includes a latch return spring and a connecting rod. One end of the latch return spring is connected to the bottom of the latch, and the other end is connected to the lock body. The lower part of the latch is connected to the connecting rod.

4. A toolbox customs-standard lock according to claim 3, characterized in that, The lower part of the latch is provided with a latch boss, the upper end of the connecting rod is provided with an upper hook, and the lower end of the connecting rod is provided with a lower hook. The upper hook is connected to the latch boss, and the lower hook is connected to the lock cylinder assembly.

5. A toolbox customs-standard lock according to claim 3, characterized in that, The button has a button gripper at the front end, and the lock tongue has grooves on both sides in the middle. The gripper is located in the grooves to push the lock tongue down. The button has a button reset spring on the front side of the upper part of the button.

6. A toolbox customs-standard lock according to claim 1, characterized in that, The locking rod assembly also includes a top ball and a top ball return spring. The top ball is fixed to the bottom of the locking rod, and one end of the top ball return spring is sleeved on the lower part of the top ball, while the other end is fixed to the lock body.

7. A toolbox customs-standard lock according to claim 1, characterized in that, The combination wheel assembly includes an inner combination wheel, an outer combination wheel, and a spring. The inner combination wheel is located inside the lock body, and its upper part is connected to the bottom of the axle wheel assembly. The spring is fixed to one side of the inner combination wheel inside the lock body, and the outer combination wheel is sleeved on the outside of the inner combination wheel and its side contacts the spring.

8. A toolbox customs-standard lock according to claim 1, characterized in that, The wheel and axle assembly includes a wheel and axle and axle return spring. The front end of the wheel and axle is engaged with the middle of the button, and the wheel and axle return spring is sleeved on the lower part of the wheel and axle.

9. A toolbox customs-standard lock according to claim 3, characterized in that, The lock cylinder assembly includes a lock cylinder, lock cylinder blades, and blade springs. The upper part of the lock cylinder is hooked to the lower hook, and the lock cylinder contains lock cylinder blades and blade springs connected to the lock cylinder blades.

10. A toolbox customs-standard lock according to claim 1, characterized in that, The upper part of the lock rod is provided with a lock rod connecting cap, and the end of the steel cable is connected to the side of the lock rod connecting cap. The other end of the steel cable is fixed to the upper side of the lock body.

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