Customs lock

Abstract

The utility model discloses a customs lock in the technical field of customs locks, which comprises a shell of the customs lock, a bottom plate is arranged at the bottom of the shell, a lock cylinder is arranged between one end of the shell and the bottom plate, three character wheels are uniformly arranged at the top of the bottom plate, the bottoms of the character wheels are connected with pinch rollers, and the pinch rollers are connected with the lock cylinder. Three evenly-arranged fixing columns are installed at the bottom of the inner side of the shell, the outer sides of the fixing columns are sleeved with first springs used for supporting the character wheels, the character wheels rotate at the tops of the pressing wheels, and when password numbers of rotation of the three character wheels are correct, the handle is pulled or pushed in for locking and unlocking. The problems that when an existing password lock is used for unlocking and locking a luggage, operation is tedious, the protection effect of the lock is poor in the transfer process, the lock is damaged due to collision or falling, the luggage is locked by the lock and is difficult to open, and the convenience and practicability of unlocking and locking of the luggage by the lock are affected are solved.

Description

Technical Field

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

[0002] A combination lock is a type of lock. By turning the combination lock, the lock can be opened when the password is correct. When the password is incorrect, the combination lock cannot be opened. Now a mechanical combination lock is a type of lock. Compared with ordinary key locks, combination locks are more convenient. Customs locks are also a type of combination locks. It refers to the customs' safety inspection of transit baggage and goods and transportation of customs-supervised goods. The protection effect of existing locks is not good, which affects the service life of the locks.

[0003] The existing combination locks are cumbersome to operate when unlocking and locking luggage, and the protection effect of the locks is poor during transportation. The locks are easily damaged by bumps or falls, making it difficult to open the locked luggage, affecting the convenience and practicality of unlocking and locking the luggage. Therefore, technical personnel in this field provide a customs lock to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a customs lock to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a customs lock, comprising a housing of the customs lock, a bottom plate is installed at the bottom of the housing, a lock core is installed at one end of the housing and between the bottom plate, three evenly arranged character wheels are installed on the top of the bottom plate, a pressure wheel is connected to the bottom of the character wheel, three evenly arranged fixing columns are installed at the bottom of the inner side of the housing, a first spring for supporting the character wheel is sleeved on the outer side of the fixing column, a bracket is slidably connected to the bottom of the fixing column, a lock tongue is installed on the top of the bracket, and a movable plate is installed on the top of the lock tongue;

[0006] A handle is placed at one end of the lock tongue, two support shafts are installed on the top of the bracket and close to the handle end, a lock assembly is sleeved on the outside of the support shaft, the letter wheel and the pressure wheel are rotatably connected to the fixed column, the bracket is fixedly connected to the support shaft, the bracket is slidably connected to the movable plate, and the handle is slidably connected to the shell.

[0007] Preferably: the locking assembly includes a rotating block sleeved on the outside of the supporting shaft, a first torsion spring is installed between the rotating block and the supporting shaft, one side of the rotating block is connected to a connecting block, the other side of the rotating block is connected to a toggle block, both sides of the handle are respectively connected to pushing blocks, both sides of the movable plate are respectively connected to locking blocks, and the rotating block is hinged to the fixed column.

[0008] Preferably: a first fixing rod is installed through the bottom of the bracket, a fixing plate is sleeved on the outside of the first fixing rod, two locking hooks are installed at the bottom of the lock tongue, and two locking frames are installed on the top of the fixing plate and near one end.

[0009] Preferably: a second fixing rod is located on the top of the fixing plate and on one side of the first fixing rod, a connecting frame is mounted on the outside of the first fixing rod and the second fixing rod 23, a second torsion spring is installed on the outside of the connecting frame and close to one end, and both ends of the connecting frame are hinged to the first fixing rod and the second fixing rod respectively.

[0010] Preferably, a positioning frame is installed at the other end of the locking tongue, a second spring is sleeved on the outer side of the positioning frame, and two ends of the second spring are respectively fixedly connected to the housing and the positioning frame.

[0011] Preferably, three groups of evenly arranged limiting balls are installed at the bottom of the housing, a plurality of circumferentially arranged positioning grooves are provided at the top of the character wheel, and each group of limiting balls is plural and circumferentially arranged.

[0012] Preferably, the other end of the movable plate is connected to a positioning column, a third spring is sleeved on the outer side of the positioning column, and two ends of the third spring are respectively fixedly connected to the housing and the movable plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by arranging a lock core, a pressure wheel, a first spring and a lock tongue, a bracket supports and connects with the lock tongue, and the lock tongue supports and connects with the movable plate. The first spring outside the fixed column can support the pressure wheel upward, and the pressure wheel can support the character wheel. The character wheel rotates on the top of the pressure wheel. When the password numbers of the three character wheels are correct, the handle is pulled or pushed in to lock and unlock. The key can also be inserted into the lock core to unlock and lock.

[0015] 2. In the utility model, by setting the first torsion spring, the connecting block, the toggle block and the locking block, the pushing blocks on both sides of the handle can push the connecting block, and the connecting block drives the rotating block to squeeze and push the first torsion spring on the outside of the supporting shaft, and the toggle block on the other side of the rotating block can toggle and press the locking blocks on both sides of the movable plate, so as to facilitate unlocking and locking by dragging the handle and pushing the handle.

[0016] 3. In the utility model, by providing a fixed plate, a lock hook, a connecting frame, a second torsion spring and a lock frame, the handle can drive the lock hook to slide through the lock tongue, the lock hook penetrates the bracket and is slidably connected thereto, and the second torsion spring can be used to push the fixed plate to rotate around the first fixed rod through the connecting frame, and the fixed plate can drive the two lock frames to disengage and embed with one end of the lock hook to lock, thereby improving the convenience and safety of locking installation and unlocking operations. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The overall structure of the utility model Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 It is a structural schematic diagram of the bottom plate, lock core, character wheel, lock tongue, handle, support shaft, rotating block, first torsion spring, connecting block, toggle block, push block, locking block and positioning groove in the overall structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the lock tongue, handle, push block, lock hook and positioning frame in the overall structure of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the movable plate, the positioning column and the locking block in the overall structure of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the first fixing rod, the fixing plate, the locking frame, the second fixing rod, the connecting frame and the second torsion spring in the overall structure of the utility model.

[0025] In the figure: 1. shell; 2. bottom plate; 3. lock core; 4. character wheel; 5. pressure wheel; 6. fixed column; 7. first spring; 8. bracket; 9. lock tongue; 10. movable plate; 11. handle; 12. support shaft; 13. rotating block; 14. first torsion spring; 15. connecting block; 16. toggle block; 17. push block; 18. locking block; 19. first fixed rod; 20. fixed plate; 21. lock hook; 22. lock buckle frame; 23. second fixed rod; 24. connecting frame; 25. second torsion spring; 26. positioning frame; 27. second spring; 28. limit ball; 29. ​​positioning groove; 30. positioning column; 31. third spring. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figures 1 to 8 In the embodiment of the utility model, a customs lock comprises a shell 1 of the customs lock, a bottom plate 2 is installed at the bottom of the shell 1, a lock core 3 is installed at one end of the shell 1 and between the bottom plate 2, three evenly arranged character wheels 4 are installed on the top of the bottom plate 2, and a pressure wheel 5 is connected to the bottom of the character wheel 4, three evenly arranged fixed columns 6 are installed at the bottom of the inner side of the shell 1, and a first spring 7 for supporting the character wheel 4 is sleeved on the outer side of the fixed column 6, a bracket 8 is slidably connected to the bottom of the fixed column 6, a lock tongue 9 is installed on the top of the bracket 8, and a movable plate 10 is installed on the top of the lock tongue 9, a handle 11 is placed at one end of the lock tongue 9, two support shafts 12 are installed on the top of the bracket 8 and close to the end of the handle 11, and a lock buckle assembly is sleeved on the outer side of the support shaft 12, the character wheel 4 and the pressure wheel 5 are rotatably connected to the fixed column 6, the bracket 8 is fixedly connected to the support shaft 12, the bracket 8 is slidably connected to the movable plate 10, and the handle 11 is slidably connected to the shell 1.

[0028] When in use, the bracket 8 is supported and connected with the lock tongue 9, the lock tongue 9 is supported and connected with the movable plate 10, the first spring 7 outside the fixed column 6 can support the pressure wheel 5 upward, the pressure wheel 5 can support the character wheel 4, the character wheel 4 rotates on the top of the pressure wheel 5, and when the password numbers of the three character wheels 4 are correct, the handle 11 is pulled or pushed in to lock and unlock, and the key can also be inserted into the lock core 3 to unlock and lock.

[0029] In one embodiment, specifically, the locking assembly includes a rotating block 13 mounted on the outside of the support shaft 12, a first torsion spring 14 is installed between the rotating block 13 and the support shaft 12, a connecting block 15 is connected to one side of the rotating block 13, a toggle block 16 is connected to the other side of the rotating block 13, pushing blocks 17 are respectively connected to both sides of the handle 11, locking blocks 18 are respectively connected to both sides of the movable plate 10, and the rotating block 13 is hinged to the fixed column 6.

[0030] Among them, the pushing blocks 17 on both sides of the handle 11 can push the connecting block 15, and the connecting block 15 drives the rotating block 13 to squeeze and push the first torsion spring 14 on the outside of the support shaft 12, and the toggle block 16 on the other side of the rotating block 13 can toggle and press the locking blocks 18 on both sides of the movable plate 10, so as to facilitate unlocking and locking by dragging the handle 11 and pushing the handle 11.

[0031] Furthermore, a first fixing rod 19 is installed through the bottom of the bracket 8, a fixing plate 20 is mounted on the outside of the first fixing rod 19, two lock hooks 21 are installed at the bottom of the lock tongue 9, two lock buckle frames 22 are installed on the top of the fixing plate 20 and near one end, a second fixing rod 23 is installed on the top of the fixing plate 20 and located on one side of the first fixing rod 19, a connecting frame 24 is mounted on the outside of the first fixing rod 19 and the second fixing rod 23, a second torsion spring 25 is installed on the outside of the connecting frame 24 and near one end, and the two ends of the connecting frame 24 are respectively hinged to the first fixing rod 19 and the second fixing rod 23.

[0032] In one embodiment, specifically, the handle 11 can drive the lock hook 21 to slide through the lock tongue 9, and the lock hook 21 penetrates the bracket 8 and is slidably connected thereto. The second torsion spring 25 can push the fixed plate 20 to rotate around the first fixed rod 19 through the connecting frame 24. The fixed plate 20 can drive the two locking frames 22 to disengage and embed with one end of the lock hook 21 to lock, thereby improving the convenience and safety of locking installation and unlocking operations.

[0033] Among them, a positioning frame 26 is installed at the other end of the lock tongue 9, and a second spring 27 is mounted on the outside of the positioning frame 26. The two ends of the second spring 27 are respectively fixedly connected to the shell 1 and the positioning frame 26. The second spring 27 can squeeze and push the lock tongue 9 through the positioning frame 26 to improve the maneuverability of unlocking and locking.

[0034] Furthermore, three groups of evenly arranged limiting balls 28 are installed at the bottom of the shell 1, and a plurality of circumferentially arranged positioning grooves 29 are provided on the top of the character wheel 4. Each group of limiting balls 28 is multiple and arranged circumferentially. The plurality of limiting balls 28 can be embedded in the positioning grooves 29 to limit and fix the character wheel 4 to prevent the character wheel 4 from rotating when it is turned manually.

[0035] Among them, the other end of the movable plate 10 is connected to a positioning column 30, and a third spring 31 is mounted on the outside of the positioning column 30. The two ends of the third spring 31 are fixedly connected to the shell 1 and the movable plate 10 respectively. The positioning column 30 can guide and limit the third spring 31, and the third spring 31 can squeeze and push the movable plate 10, thereby improving the stability and maneuverability of the movable plate 10 moving on the top of the lock tongue 9.

[0036] The working principle of this utility model:

[0037] First, use the character wheel 4 to rotate on the top of the pressure wheel 5. At this time, multiple limit balls 28 fall into the positioning groove 29, and the first spring 7 supports the pressure wheel 5 upward. Then, when the password is entered correctly, push the handle 11. At this time, the pushing blocks 17 on both sides of the handle 11 push the connecting block 15, and then the connecting block 15 drives the rotating block 13 to squeeze and push the first torsion spring 14 on the outside of the support shaft 12. At the same time, the toggle block 16 on the other side of the rotating block 13 toggle and press the locking blocks 18 on both sides of the movable plate 10. At this time, the movable plate 10 squeezes and pushes the third spring 31, and at the same time, the handle 11 drives the lock hook 21 to slide through the lock tongue 9. At this time, the other end of the lock tongue 9 squeezes and pushes the second spring 27, and then the second torsion spring 25 pushes the fixed plate 20 to rotate around the first fixed rod 19 through the connecting frame 24, and the fixed plate 20 drives the two lock buckle frames 22 to disengage from one end of the lock hook 21.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A customs lock, comprising a housing (1) of the customs lock, characterized in that: A bottom plate (2) is installed at the bottom of the housing (1), a lock core (3) is installed at one end of the housing (1) and between the bottom plate (2), three evenly arranged character wheels (4) are installed at the top of the bottom plate (2), a pressure wheel (5) is connected to the bottom of the character wheel (4), three evenly arranged fixing columns (6) are installed at the bottom of the inner side of the housing (1), a first spring (7) for supporting the character wheel (4) is sleeved on the outer side of the fixing column (6), a bracket (8) is slidably connected to the bottom of the fixing column (6), a lock tongue (9) is installed at the top of the bracket (8), and a movable plate (10) is installed at the top of the lock tongue (9); A handle (11) is placed at one end of the lock tongue (9); two support shafts (12) are installed at the top of the bracket (8) and close to the handle (11); a lock assembly is sleeved on the outer side of the support shaft (12); the letter wheel (4) and the pressure wheel (5) are rotatably connected to the fixed column (6); the bracket (8) is fixedly connected to the support shaft (12); the bracket (8) is slidably connected to the movable plate (10); and the handle (11) is slidably connected to the shell (1).

2. A customs lock according to claim 1, characterized in that: The locking assembly comprises a rotating block (13) sleeved on the outside of the supporting shaft (12), a first torsion spring (14) is installed between the rotating block (13) and the supporting shaft (12), one side of the rotating block (13) is connected to a connecting block (15), the other side of the rotating block (13) is connected to a toggle block (16), both sides of the handle (11) are respectively connected to push blocks (17), both sides of the movable plate (10) are respectively connected to locking blocks (18), and the rotating block (13) is hinged to the fixed column (6).

3. A customs lock according to claim 2, characterized in that: A first fixing rod (19) is installed through the bottom of the bracket (8), a fixing plate (20) is sleeved on the outside of the first fixing rod (19), two locking hooks (21) are installed at the bottom of the lock tongue (9), and two locking frames (22) are installed on the top of the fixing plate (20) and close to one end.

4. A customs lock according to claim 3, characterized in that: A second fixing rod (23) is disposed at the top of the fixing plate (20) and is located on one side of the first fixing rod (19); a connecting frame (24) is sleeved on the outside of the first fixing rod (19) and the second fixing rod (23); a second torsion spring (25) is installed on the outside of the connecting frame (24) and close to one end; and two ends of the connecting frame (24) are respectively hinged to the first fixing rod (19) and the second fixing rod (23).

5. A customs lock according to claim 2, characterized in that: A positioning frame (26) is installed at the other end of the locking tongue (9), a second spring (27) is sleeved on the outer side of the positioning frame (26), and two ends of the second spring (27) are respectively fixedly connected to the housing (1) and the positioning frame (26).

6. A customs lock according to claim 1, characterized in that: The bottom of the housing (1) is provided with three groups of evenly arranged limiting balls (28), and the top of the character wheel (4) is provided with a plurality of circumferentially arranged positioning grooves (29), and each group of limiting balls (28) is plural and circumferentially arranged.

7. A customs lock according to claim 2, characterized in that: The other end of the movable plate (10) is connected to a positioning column (30), and a third spring (31) is sleeved on the outside of the positioning column (30), and the two ends of the third spring (31) are respectively fixedly connected to the housing (1) and the movable plate (10).

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