Low-noise lower handle hook tongue type anti-theft lock

Abstract

The utility model discloses a low-noise lower handle hook tongue type anti-theft lock, which belongs to the technical field of anti-theft locks, and comprises a lining plate and a lock box, the lock box is rotatably connected with a shifting peach, the shifting peach is provided with an upper shifting sheet and a lower shifting sheet, the lock box is also provided with a gear sheet matched with the upper shifting sheet, and the gear sheet is provided with a lower shifting sheet matched with the lower shifting sheet. The lock box is further provided with a transmission plate matched with the gear piece, a transmission gear matched with the top of the transmission plate, a driving gear matched with the transmission gear and a rotating seat, the driving gear is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the rotating seat. According to the anti-theft hook tongue, due to the fact that the noise reduction ring is arranged, noise generated when the anti-theft hook tongue is locked can be reduced, the using effect of an anti-theft lock is improved, and due to the fact that the noise reduction ring is made of carbon fiber reinforced plastics, the noise reduction ring is made of carbon fiber reinforced plastics, and the noise reduction ring is not prone to falling off. And the noise reduction effect can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft lock technology, specifically a low-noise hook-type anti-theft lock with a lower handle. Background Technology

[0002] Hook-type security locks are a common type of mechanical lock, widely used in doors and windows due to their unique hook-type structure and high security. The core component of a hook-type security lock is the "hook," which is usually made of high-strength metal. When the lock is closed, the hook engages with the lock groove, forming a secure, fixed structure. Its working principle involves controlling the extension and retraction of the hook using a key or knob to open and close the lock.

[0003] The above-mentioned technical conditions also have defects: when the existing hook-type anti-theft lock is in use, the hook will pop out when it is locked, and the contact between it and the backing plate will make a lot of noise, thus reducing the effectiveness of the anti-theft lock.

[0004] Based on this, this utility model designs a low-noise hook-type anti-theft lock with a lower handle to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a low-noise hook-type anti-theft lock with a lower handle to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-noise hook-type anti-theft lock with a lower handle, comprising a liner and a lock box. A lever is rotatably connected to the lock box, and an upper lever and a lower lever are provided on the lever. A gear plate adapted to the upper lever is also provided on the lock box, as is a transmission plate adapted to the gear plate. A transmission gear adapted to the top of the transmission plate is also provided on the lock box, as is a drive gear adapted to the transmission gear. A rotating seat is also provided on the lock box, and a connecting rod is fixedly connected to the drive gear. A pin is fixedly connected to one side of the connecting rod, and the pin is located inside a through hole in the rotating seat. An anti-theft hook is provided on one side of the rotating seat. A positioning groove is provided on the liner at the telescopic hole of the anti-theft hook, and a noise-reducing ring is provided in the positioning groove. A stop block is provided on the anti-theft hook, and the stop block abuts against the noise-reducing ring when the anti-theft hook is extended.

[0007] By adopting the above technical solution, the noise caused by the contact between the hook tongue and the liner plate can be reduced, thereby increasing the effectiveness of the anti-theft lock.

[0008] Preferably, a baffle is fixedly connected inside the lock box, and a hook torsion spring is sleeved on the drive gear. One end of the hook torsion spring abuts against the baffle, and the other end of the hook torsion spring is connected to the rotating seat.

[0009] By adopting the above technical solution, the hook tongue can be well controlled.

[0010] Preferably, the lock box is further provided with a fixing frame inside, and a protrusion adapted to the transmission plate is provided on the fixing frame. A compression spring is connected to one side of the fixing frame, one end of the compression spring is connected to the lock box, and a triangular tongue is connected to the other side of the fixing frame.

[0011] By adopting the above technical solution, the triangular tongue can be well controlled.

[0012] Preferably, the lock box is further provided with a pull rod, a latch is fixedly connected to one end of the pull rod, a limiting block for blocking the latch is provided inside the lock box, and a latch torsion spring is provided inside the lock box, with one end of the latch torsion spring connected to the pull rod.

[0013] By adopting the above technical solution, the oblique tongue can be effectively limited.

[0014] Preferably, the noise reduction ring is made of carbon fiber reinforced plastic.

[0015] By adopting the above technical solutions, the effectiveness of the noise reduction ring can be improved.

[0016] In summary, this application has the following beneficial technical effects: by setting a noise reduction ring, the noise when the anti-theft hook is locked can be reduced, thereby improving the use effect of the anti-theft lock; and by setting the noise reduction ring as carbon fiber reinforced plastic, the noise reduction effect can be further improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 This is a schematic diagram of the installation of the anti-theft hook in this embodiment;

[0020] Figure 3 This is a schematic diagram of the installation of the noise reduction ring in this embodiment.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Liner plate; 2. Lock box; 3. Pulley; 4. Gear plate; 5. Transmission plate; 6. Transmission gear; 7. Drive gear; 8. Rotating seat; 9. Connecting rod; 10. Pull pin; 11. Anti-theft hook; 12. Baffle plate; 13. Hook torsion spring; 14. Fixing bracket; 15. Compression spring; 16. Triangular tongue; 17. Pull rod; 18. Angled tongue; 19. Limit block; 20. Angled tongue torsion spring; 21. Stop block; 22. Positioning groove; 23. Noise reduction ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] A low-noise hook-type anti-theft lock with a lower handle includes a liner plate 1 and a lock box 2. The lock box 2 includes a bottom and a cover for housing the transmission components inside the lock body. A latch 3 is rotatably connected to the lock box 2, and an upper actuating plate 24 and a lower actuating plate 25 are provided on the latch 3. A gear plate 4 adapted to the upper actuating plate 24 is also provided on the lock box 2. When the upper actuating plate 24 rotates, it can drive the gear plate 4 to rotate. A transmission plate 5 adapted to the gear plate 4 is also provided on the lock box 2. When the gear plate 4 rotates, it can drive the transmission plate 5 to move in the vertical direction. A transmission gear 6 adapted to the top of the transmission plate 5 is also provided on the lock box 2. When the transmission plate 5 moves upward, it can drive the transmission gear 6 to rotate. A drive gear 7 adapted to the transmission gear 6 is also provided on the lock box 2. When the transmission gear 6 rotates, it can drive the drive gear 7 to rotate. A rotating seat 8 is also provided on the lock box 2. A connecting rod 9 is fixedly connected to the drive gear 7. A pull pin 10 is fixedly connected to one side of the connecting rod 9. The pull pin 10 is set inside the through hole opened on the rotating seat 8. The drive gear 7 can drive the rotating seat 8 to rotate through the connecting rod 9 and the pull pin 10. An anti-theft hook tongue 11 is provided on one side of the rotating seat 8, so as to realize the extension and retraction of the anti-theft hook tongue 11. A positioning groove 22 is provided on the liner plate 1 and located at the telescopic hole of the anti-theft hook tongue 11. A noise reduction ring 23 is provided on the positioning groove 22. A stop block 21 is provided on the anti-theft hook tongue 11. When the anti-theft hook tongue 11 pops out, the stop block 21 abuts against the noise reduction ring 23, which can reduce the noise caused by the anti-theft hook tongue 11 popping out.

[0026] Furthermore, a baffle plate 12 is fixedly connected inside the lock box 2, and a hook tongue torsion spring 13 is sleeved on the drive gear 7. One end of the hook tongue torsion spring 13 is pressed against the baffle plate 12, and the other end of the hook tongue torsion spring 13 is connected to the rotating seat 8, which can provide power for the reset of the anti-theft hook tongue 11.

[0027] Furthermore, a fixing frame 14 is provided inside the lock box 2. The fixing frame 14 is provided with a protrusion that is compatible with the transmission plate 5. When the transmission plate 5 moves, it can drive the fixing frame 14 to move. A compression spring 15 is connected to one side of the fixing frame 14. One end of the compression spring 15 is connected to the lock box 2. A triangular tongue 16 is connected to the other side of the fixing frame 14.

[0028] Furthermore, a pull rod 17 is provided on the lock box 2, and a latch 18 is fixedly connected to one end of the pull rod 17. A limiting block 19 for blocking the latch 18 is also provided inside the lock box 2. A latch torsion spring 20 is also provided inside the lock box 2, and one end of the latch torsion spring 20 is connected to the pull rod 17 for resetting the latch 18.

[0029] Furthermore, the noise reduction ring 23 is made of carbon fiber reinforced plastic, which has good strength and noise reduction capabilities, thus reducing noise when the anti-theft lock is locked by the anti-theft hook 11, thereby increasing its effectiveness.

[0030] The implementation principle of this embodiment is as follows: When in use, by rotating the pawl 3, the upper actuating plate 24 drives the gear plate 4 to rotate, which in turn causes the transmission plate 5 to move upward, thereby causing the transmission gear 6 and the drive gear 7 to rotate. Then, the connecting rod 9 and the pull pin 10 control the rotation of the rotating seat 8 and the anti-theft hook tongue 11 to rotate. At the same time, the lower actuating plate 25 drives the fixed frame 14 to move, causing the triangular tongue 16 to retract, realizing the unlocking operation. When the pawl 3 is released, the pull rod 17 is reset under the action of the inclined tongue torsion spring 20, the triangular tongue 16 is reset under the action of the compression spring 15, and the anti-theft hook tongue 11 is reset under the action of the hook tongue torsion spring 13. Then, the stop block 21 on the anti-theft hook tongue 11 contacts the noise reduction ring 23, which can reduce the noise when locking and increase the effectiveness of the anti-theft lock.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-noise hook-type anti-theft lock with a lower handle, comprising a liner (1) and a lock box (2), characterized in that: The lock box (2) is rotatably connected to a paddle (3), on which an upper actuating plate (24) and a lower actuating plate (25) are provided. The lock box (2) is also provided with a gear plate (4) adapted to the upper actuating plate (24), a transmission plate (5) adapted to the gear plate (4), a transmission gear (6) adapted to the top of the transmission plate (5), a drive gear (7) adapted to the transmission gear (6), and a rotating seat (8). A connecting rod (9) is fixedly connected to the moving gear (7). A pull pin (10) is fixedly connected to one side of the connecting rod (9). The pull pin (10) is set inside the through hole opened on the rotating seat (8). An anti-theft hook tongue (11) is set on one side of the rotating seat (8). A positioning groove (22) is opened on the liner (1) at the telescopic hole of the anti-theft hook tongue (11). A noise reduction ring (23) is set on the positioning groove (22). A stop block (21) is set on the anti-theft hook tongue (11). The stop block (21) abuts against the noise reduction ring (23) when the anti-theft hook tongue (11) pops out.

2. The low-noise hook-type anti-theft lock with a lower handle as described in claim 1, characterized in that: The lock box (2) is fixedly connected to a baffle (12), and a hook tongue torsion spring (13) is sleeved on the drive gear (7). One end of the hook tongue torsion spring (13) is pressed against the baffle (12), and the other end of the hook tongue torsion spring (13) is connected to the rotating seat (8).

3. The low-noise hook-type anti-theft lock with a lower handle as described in claim 1, characterized in that: The lock box (2) is also provided with a fixing frame (14). The fixing frame (14) is provided with a protrusion that is compatible with the transmission plate (5). A compression spring (15) is connected to one side of the fixing frame (14). One end of the compression spring (15) is connected to the lock box (2). A triangular tongue (16) is connected to the other side of the fixing frame (14).

4. A low-noise hook-type anti-theft lock with a lower handle as described in claim 1, characterized in that: The lock box (2) is also provided with a pull rod (17), and a tongue (18) is fixedly connected to one end of the pull rod (17). Inside the lock box (2), a limiting block (19) for blocking the tongue (18) is also provided. Inside the lock box (2), a tongue torsion spring (20) is also provided, and one end of the tongue torsion spring (20) is connected to the pull rod (17).

5. A low-noise hook-type anti-theft lock with a lower handle as described in claim 1, characterized in that: The noise reduction ring (23) is made of carbon fiber reinforced plastic.

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