Hasp lock

Abstract

The utility model discloses a hasp lock. The hasp lock comprises a spring bolt assembly and a lock shaft assembly which are matched with each other, the spring bolt assembly comprises a spring bolt support, a spring bolt and an elastic piece, the spring bolt is rotationally connected to the spring bolt support, and the spring bolt is connected with the elastic piece; the lock shaft assembly comprises a lock shaft support and a lock shaft rotationally connected to the lock shaft support. A slope surface is arranged at the front end of the spring bolt, a lock groove matched with the lock shaft is formed behind the slope surface, and a handle is arranged at the rear end of the spring bolt; the lock shaft moves along the slope and rolls into the lock groove of the spring bolt, and the spring bolt is stressed to be in a locked state through the elastic piece. The hasp lock is ingenious in structure and can be conveniently applied to hasp lock structures of various door plates; when the door plate is pushed in, the door plate is automatically locked, and the lock shaft and the lock groove form a certain angle, so that the door plate is locked smoothly and is not easy to fall off during locking; a user can unlock only by rotating the handle, so that the use is convenient; according to the device, a hidden hasp lock is achieved, and the overall appearance design of a product is not damaged.

Description

Technical Field

[0001] This utility model relates to locking devices, and more specifically, to a latch lock. Background Technology

[0002] Currently, the market lacks the technical requirements for door panels that can be installed on irregularly shaped or space-constrained products, lack automatic locking, or provide security after locking. For some locks designed for irregularly shaped door panels, the structure is complex and installation space is limited in order to meet functional requirements.

[0003] The existing latch locking and unlocking mechanism is a linear sliding type, which means the latch cannot function within a limited rotational space. Manual assistance is required when closing the door panel, and there is a safety hazard that the latch may disengage if excessive external force is applied after locking.

[0004] To address the aforementioned issues, it is necessary to provide a latch lock that can solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a latch lock that overcomes the aforementioned defects in the prior art.

[0006] The technical solution to achieve the purpose of this utility model is: a latch lock, including a locking tongue assembly and a locking shaft assembly; the locking tongue assembly includes a locking tongue bracket, a locking tongue, and an elastic element, the locking tongue is rotatably connected to the locking tongue bracket, and the locking tongue and the elastic element are connected; the locking shaft assembly includes a locking shaft bracket and a locking shaft rotatably connected to the locking shaft bracket; the front end of the locking tongue is provided with a slope, and the rear end of the slope is provided with a locking groove that mates with the locking shaft, and the rear end of the locking tongue is provided with a handle; the locking shaft moves along the slope and rolls into the locking groove of the locking tongue, and the elastic element causes the locking tongue to be in a locked state under force.

[0007] Furthermore, the latch bracket includes integrally formed left and right side plates, a bottom plate, and a rear plate, with the latch rotatably connected to the left and right side plates.

[0008] Furthermore, the latch assembly also includes a pin and a corresponding cotter pin, the pin passing through the left and right side plates and the latch respectively.

[0009] Furthermore, the elastic element is a torsion spring, which is sleeved on the pin. One end of the torsion spring is connected to the latch bracket, and the other end is connected to the latch.

[0010] Furthermore, the base plate is provided with an upper limit stop edge to limit the upper limit of the upward rotation of the latch handle; the rear plate is provided with a lower limit stop edge to limit the lower limit of the downward rotation of the latch handle.

[0011] Furthermore, the upper limit stop edge of the base plate is provided with a hook-shaped limiting groove that matches the torsion spring.

[0012] Furthermore, the lock shaft bracket is provided with a lock shaft mounting hole, and the lock shaft is rotatably mounted on the lock shaft mounting hole via a connector.

[0013] Furthermore, the locking shaft mounting hole is an oblong slot.

[0014] Furthermore, the locking shaft bracket is also provided with a fixing mounting hole and a fastening connector, which fixes the locking shaft bracket to the corresponding mounting plate.

[0015] Furthermore, the fixing hole is an oblong groove.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model has a clever structure and can be easily applied to the latch lock structure of various door panels; it automatically locks when the door panel is pushed in, and the lock shaft and lock groove are at a certain angle, so it is smooth when locking and not easy to fall off when locking; the user only needs to turn the handle to unlock, which is convenient to use; the device realizes a hidden latch lock without damaging the overall appearance design of the product.

[0018] (2) The locking tongue bracket of this utility model can limit the rotation range of the locking tongue through its own base plate and rear plate structure, which is convenient to use.

[0019] (3) The pin and torsion spring structure of this utility model are easy to install and maintain, the rotation structure is simple and efficient, and the latch lock structure is more stable.

[0020] (4) The hook of the torsion spring in the base plate design of this utility model makes it more convenient to install the torsion spring.

[0021] (5) The waist-shaped slot design of the locking shaft bracket of this utility model makes the installation position not limited by space, with an appropriate adjustment range, and convenient for installation.

[0022] (6) The connectors, pins, torsion springs, etc. in this utility model can all be standard parts, which are low in cost and easy to install. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0024] Figure 1 This is a perspective view of the present invention.

[0025] Figure 2 This is a 3D view of the latch support.

[0026] Figure 3 This is a schematic diagram of the rotation of the latch assembly.

[0027] Figure 4 This is a three-dimensional view of the locking shaft bracket.

[0028] Figure 5 Figure a shows the open state; Figure b shows the pushed-in state; Figure c shows the locked state.

[0029] The labels in the attached diagram are as follows: 1. Locking tongue assembly; 11. Locking tongue bracket; 11-1. Side plate; 11-2. Base plate; 11-3. Rear plate; 11-4. Upper limit stop; 11-5. Lower limit stop; 11-6. Hook-shaped limiting groove; 12. Locking tongue; 13. Elastic element; 14. Pin; 15. Cotter pin;

[0030] 2. Lock shaft assembly; 21. Lock shaft bracket; 21-1. Lock shaft mounting hole; 21-2. Fixed mounting hole; 22. Lock shaft; 23. Connector; 24. Fastening connector. Detailed Implementation

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0036] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0037] (Example)

[0038] See Figure 1 A latch lock includes a latch assembly 1 and a locking shaft assembly 2. The latch assembly 1 includes a latch bracket 11, a latch 12, and an elastic element 13. The latch 12 is rotatably connected to the latch bracket 11, and the latch 12 and the elastic element 13 are connected. The locking shaft assembly 2 includes a locking shaft bracket 21 and a locking shaft 22 rotatably connected to the locking shaft bracket 21. The front end of the latch 12 is provided with a slope, and the rear end of the slope is provided with a locking groove that mates with the locking shaft 22. The rear end of the latch 12 is provided with a handle. The locking shaft 22 moves along the slope and rolls into the locking groove of the latch 12. The elastic element 13 causes the latch 12 to be locked under force.

[0039] Preferably, see Figure 2 The latch bracket 11 includes an integrally formed left and right side plates 11-1, a bottom plate 11-2 and a rear plate 11-3, and the latch 12 is rotatably connected to the left and right side plates 11-1.

[0040] Preferably, the latch assembly 1 further includes a pin 14 and a corresponding cotter pin 15, with the pin 14 passing through the left and right side plates 11-1 and the latch 12 respectively. The elastic element 13 is a torsion spring, which is sleeved on the pin 14, with one end of the torsion spring connected to the latch bracket 11 and the other end connected to the latch 12.

[0041] Preferably, see Figure 3The base plate 11-2 is provided with an upper limit stop 11-4 to limit the upper limit of the upward rotation of the latch 12 handle; the rear plate 11-3 is provided with a lower limit stop 11-5 to limit the lower limit of the downward rotation of the latch 12 handle.

[0042] Preferably, see Figure 2 The upper limit stop edge of the base plate 11-2 is provided with a hook limiting groove 11-6 that matches the torsion spring.

[0043] Preferably, see Figure 4 The lock shaft bracket 21 is provided with a lock shaft mounting hole 21-1 and a fixed mounting hole 21-2; both the lock shaft mounting hole 21-1 and the fixed mounting hole 21-2 are oblong groove holes.

[0044] The locking shaft 22 is rotatably mounted on the locking shaft mounting hole 21-1 via the connector 23, which is a standard hexagonal nut. The fastening connector 24 is a standard internal hexagonal nut and flat washer, which fixes the locking shaft bracket 21 to the corresponding mounting plate.

[0045] See Figure 5 The workflow of this embodiment is as follows:

[0046] (1) The latch assembly 1 is fixed on the door panel and generates rotational torque of the latch through the action of the torsion spring; when the torsion spring is in a stationary state, the latch 12 is locked by the torque of the torsion spring.

[0047] (2) When the door panel is closed, the slope of the front end of the latch 12 contacts the cylindrical surface of the lock shaft 22. As the door panel is pushed in, the slope of the latch 12 rolls along the cylindrical surface of the lock shaft 22. When it reaches the lock groove position, the lock groove on the latch 12 automatically falls into the lock shaft 22 under the action of the torsion spring, locking the door panel.

[0048] (4) When opening the door panel, manually lift the handle of the latch 12. The lock groove on the latch 12 will disengage from the lock shaft 22 to open the door panel.

[0049] (5) After releasing the latch 12 handle, the latch 12 returns to the locked position under the torque of the torsion spring.

[0050] The latch lock structure in this embodiment is ingenious and can be easily applied to latch lock structures of various door panels; it automatically locks when the door panel is pushed in, and the lock shaft and lock groove are at a certain angle, so it is smooth when locking and not easy to fall off when locking; the user only needs to turn the handle to unlock, which is convenient to use; the device realizes a hidden latch lock without compromising the overall appearance design of the product.

[0051] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A latch lock, characterized in that: The device includes a locking tongue assembly (1) and a locking shaft assembly (2) that cooperate with each other. The locking tongue assembly (1) includes a locking tongue bracket (11), a locking tongue (12) and an elastic element (13). The locking tongue (12) is rotatably connected to the locking tongue bracket (11), and the locking tongue (12) and the elastic element (13) are connected. The locking shaft assembly (2) includes a locking shaft bracket (21) and a locking shaft (22) rotatably connected to the locking shaft bracket (21). The front end of the locking tongue (12) is provided with a slope, and the rear end of the slope is provided with a locking groove that cooperates with the locking shaft (22). The rear end of the locking tongue (12) is provided with a handle. The locking shaft (22) moves along the slope and rolls into the locking groove of the locking tongue (12). The elastic element (13) causes the locking tongue (12) to be in a locked state under force.

2. The latch lock according to claim 1, characterized in that: The latch bracket (11) includes an integrally formed left and right side plates (11-1), a bottom plate (11-2) and a rear plate (11-3), and the latch (12) is rotatably connected to the left and right side plates (11-1).

3. A latch lock according to claim 2, characterized in that: The latch assembly (1) also includes a pin (14) and a corresponding cotter pin (15), wherein the pin (14) passes through the left and right side plates (11-1) and the latch (12) respectively.

4. A latch lock according to claim 3, characterized in that: The elastic element (13) is a torsion spring, which is sleeved on the pin (14). One end of the torsion spring is connected to the latch bracket (11), and the other end is connected to the latch (12).

5. A latch lock according to claim 4, characterized in that: The base plate (11-2) is provided with an upper limit stop (11-4) to limit the upper limit of the upward rotation of the latch (12) handle; the rear plate (11-3) is provided with a lower limit stop (11-5) to limit the lower limit of the downward rotation of the latch (12) handle.

6. A latch lock according to claim 5, characterized in that: The upper limit stop edge of the base plate (11-2) is provided with a hook-shaped limiting groove (11-6) that matches the torsion spring.

7. A latch lock according to claim 1, characterized in that: The lock shaft bracket (21) is provided with a lock shaft mounting hole (21-1), and the lock shaft (22) is rotatably mounted on the lock shaft mounting hole (21-1) through a connector (23).

8. A latch lock according to claim 7, characterized in that: The locking shaft mounting hole (21-1) is an oblong groove.

9. A latch lock according to claim 7, characterized in that: The locking shaft bracket (21) is also provided with a fixing mounting hole (21-2) and a fastening connector (24), which fixes the locking shaft bracket (21) to the corresponding mounting plate.

10. A latch lock according to claim 9, characterized in that: The mounting hole (21-2) is a waist-shaped groove.

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