Compression locking device based on connecting rod operation

Abstract

The utility model discloses a compression locking device based on connecting rod operation, and relates to the field of cabinet body locking devices. The compression lock catch device based on connecting rod operation comprises a fixing base, a direction block and a buckle tongue, the direction block and the buckle tongue are arranged in the fixing base, the fixing base is provided with a first logic groove, a second logic groove and a third logic groove which are through, the direction block is arranged in the fixing base in a sliding mode, and the buckle tongue is hinged to the direction block. And the buckling tongue is driven by planar motion of the direction block to realize composite motion of first vertical motion and then horizontal motion through the second logic groove and the third logic groove. According to the compression lock catch device based on the connecting rod operation, it needs to be guaranteed that the buckle tongue vertically moves to a certain height and then transversely moves in the unlocking operation process, it needs to be guaranteed that the buckle tongue transversely moves to a certain position and then vertically moves in the locking operation process, and therefore in the actual operation process, unlocking is easy, and the locking effect is good. The locking operation is simple and convenient; and the sealing effect of the cabinet door is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of cabinet locking devices, specifically a compression locking device based on linkage operation. Background Technology

[0002] Currently, the multi-point locking structures used in the industry for linkage locks generally employ either an upper and lower linkage insertion method or a method where rollers are connected to the ends of the upper and lower linkages for locking. The linkage insertion locking method involves fixing the lock and linkage to the cabinet door, while also creating two holes at the top and bottom of the cabinet frame. When locked, the lock moves the linkage upwards and downwards, allowing it to insert precisely into the holes on the cabinet frame, thus locking the cabinet door.

[0003] Another locking method, where the upper and lower connecting rods are connected to rollers at their ends, involves fixing the lock and connecting rod to the cabinet door. When locked, the lock drives the connecting rod to move upward and downward, so that the rollers at the ends of the connecting rods press against the cabinet frame, thereby locking the cabinet door.

[0004] Similar structures to the two linkage-operated cabinet door locking mechanisms mentioned above have poor tolerance compensation effects caused by cabinet door assembly, require high assembly precision of the cabinet body, have a limited range of applications, and often result in the cabinet door not locking due to slight deviations. They also fail to meet the industry's requirements for the sealing level of the cabinet locking structure and have low locking force at the locking points. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a compression locking device based on linkage operation, which solves the problems of weak tolerance compensation capability, limited sealing performance, and low operational reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compression locking device based on linkage operation, comprising a fixed base and a directional block and a latch tongue disposed inside the fixed base. The fixed base has a through first logic slot, a second logic slot, and a third logic slot. The directional block is slidably disposed inside the fixed base and moves laterally through the first logic slot. The latch tongue is hinged to the directional block and, driven by the planar motion of the directional block, achieves a composite motion of first vertical and then horizontal through the second and third logic slots.

[0007] Preferably, a rocker arm is installed between the directional block and the latch.

[0008] Preferably, the side of the latch is provided with a receiving groove, and the end of the directional block is inserted into the receiving groove.

[0009] Preferably, a first pin is movably connected between the bottom end of the rocker arm and the direction block, and both ends of the first pin are inserted into the first logic slot.

[0010] Preferably, a second pin is movably connected between the top end of the rocker arm and the end of the latch, and both ends of the second pin are inserted into the second logic slot.

[0011] Preferably, the latch is internally connected to a third pin, and both ends of the third pin are inserted into a third logic slot.

[0012] Preferably, the end of the latch away from the direction block is configured as a wedge-shaped structure.

[0013] Preferably, a connecting rod is fixedly connected to one end of the directional block, and a handle is connected to the other end of the connecting rod.

[0014] This utility model discloses a compression locking device based on linkage operation, which has the following beneficial effects:

[0015] This linkage-based compression locking device, by manipulating a directional block to move linearly in a plane, uses a logically designed motion trajectory groove on the fixed base to limit the directional block's unidirectional movement, ultimately driving the latch's up-down and back-and-forth movement. During this motion logic, the locking and unlocking operations must ensure a specific sequence of up-down and left-right movements for the latch. During unlocking, the latch must first move vertically to a certain height before moving horizontally; during locking, the latch must first move horizontally to a certain position before moving vertically. This ensures easy unlocking, simple locking, and a secure seal on the cabinet door. Through a structural design based on the theory of over-dead-point positioning, the latch, when locked, will not move backward or upward regardless of the upward pushing force applied, unless the structural limits are reached and damage occurs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

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

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing base of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the directional block, rocker arm, and latch of this utility model;

[0021] Figure 5 This is an assembly diagram of the present invention.

[0022] In the diagram: 1. Fixed base; 11. First logic slot; 12. Second logic slot; 13. Third logic slot; 2. Steering block; 3. Rocker arm; 4. Tongue; 5. First pin; 6. Second pin; 7. Third pin; 8. Linkage rod; 9. Handle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This application provides a linkage-based compression locking device that solves the problems of weak tolerance compensation, limited sealing performance, and low operational reliability. By manipulating the directional block 2 to move linearly in a plane, the unidirectional movement of the directional block 2 is limited by the logically designed motion trajectory groove on the fixed base 1, ultimately driving the latch 4 to move up and down and forward and backward. During this motion logic, the locking and unlocking operations must ensure the sequential order of the latch 4's up-down and left-right movements. During the unlocking operation, the latch 4 must first move vertically to a certain height before moving horizontally; during the locking operation, the latch 4 must first move horizontally to a certain position before moving vertically. This ensures easy unlocking, convenient locking, and a good seal on the cabinet door during actual operation.

[0025] 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.

[0026] This utility model discloses a compression locking device based on linkage operation.

[0027] According to the appendix Figure 1-5 As shown, it includes a fixed base 1 and a directional block 2 and a latch 4 disposed inside the fixed base 1. The fixed base 1 has a through first logic slot 11, a second logic slot 12 and a third logic slot 13. The directional block 2 is slidably disposed inside the fixed base 1 and moves laterally through the first logic slot 11. The latch 4 is hinged to the directional block 2 and, driven by the planar motion of the directional block 2, the latch 4 achieves a composite motion of first vertical and then horizontal through the second logic slot 12 and the third logic slot 13.

[0028] When the directional block 2 moves linearly in a plane, the unidirectional movement of the directional block 2 is limited by the logical trajectory groove designed on the fixed base 1, thereby ultimately driving the up-down and back-and-forth movement of the latch 4. During this motion logic, the locking and unlocking operations must ensure the sequential order of the up-down and left-right movements of the latch 4. During unlocking, the latch 4 must first move vertically to a certain height before moving horizontally; during locking, the latch 4 must first move horizontally to a certain position before moving vertically. This ensures easy unlocking, simple locking, and a secure seal on the cabinet door. Through the structural design based on the dead-point theory, the latch 4, when locked, will not move backward or upward regardless of the upward pushing force applied, unless the product structure's ultimate force is reached and damage is caused.

[0029] Furthermore, a rocker arm 3 is installed between the direction block 2 and the latch 4.

[0030] Furthermore, a receiving groove is provided on the side of the latch 4, and the end of the directional block 2 is inserted into the receiving groove.

[0031] Specifically disclosed, a first pin 5 is movably connected between the bottom end of the rocker arm 3 and the direction block 2, and both ends of the first pin 5 are inserted into the first logic slot 11.

[0032] Specifically disclosed, a second pin 6 is movably connected between the top end of the rocker arm 3 and the end of the latch 4, and both ends of the second pin 6 are inserted into the second logic slot 12.

[0033] The rocker arm 3 serves as an intermediate transmission component. Its bottom end is hinged to the directional block 2 via the first pin 5, and its top end is connected to the latch 4 via the second pin 6, thereby converting the lateral movement of the directional block 2 into the compound movement of the latch 4.

[0034] Tongue-tapping compound exercise 4:

[0035] Vertical movement stage: The bottom end of the rocker arm 3 moves laterally with the direction block 2, and the top end pushes the latch 4 to rise vertically along the second logic slot 12 through the second pin 6 to achieve initial locking.

[0036] Horizontal movement stage: After the latch 4 moves vertically to its limit, the third pin 7 moves horizontally along the third logic slot 13, pushing the latch 4 to move horizontally and completing the final locking.

[0037] Specifically disclosed, the internal movable part of the latch 4 is connected to a third pin 7, and both ends of the third pin 7 are inserted into the third logic slot 13.

[0038] The first pin 5 and the second pin 6 are respectively inserted into the first logic slot 11 and the second logic slot 12 to ensure the flexible connection between the rocker arm 3, the direction block 2, and the latch 4; the third pin 7 fixes the latch 4 and restricts its movement trajectory.

[0039] Furthermore, the end of the latch 4 away from the direction block 2 is set as a wedge structure, which enhances the locking effect.

[0040] Furthermore, a connecting rod 8 is fixedly connected to one end of the steering block 2, and a handle 9 is connected to the other end of the connecting rod 8. The connecting rod 8 connects the steering block 2 and the handle 9 to transmit operating force.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A compression locking device based on linkage operation, comprising a fixed base (1) and a directional block (2) and a latch (4) disposed inside the fixed base (1), characterized in that, The fixed base (1) has a through first logic slot (11), a second logic slot (12) and a third logic slot (13). The direction block (2) is slidably disposed inside the fixed base (1), and the direction block (2) moves laterally through the first logic slot (11). The latch (4) is hinged to the direction block (2), and the latch (4) achieves a composite movement of first vertical and then horizontal through the second logic slot (12) and the third logic slot (13) under the planar motion drive of the direction block (2).

2. The compression locking device based on linkage operation according to claim 1, characterized in that, A rocker arm (3) is installed between the directional block (2) and the latch (4).

3. A compression locking device based on linkage operation according to claim 1, characterized in that, The side of the latch (4) is provided with a receiving groove, and the end of the directional block (2) is inserted into the receiving groove.

4. A compression locking device based on linkage operation according to claim 2, characterized in that, The bottom end of the rocker arm (3) is movably connected to the direction block (2) with a first pin (5), and both ends of the first pin (5) are inserted into the first logic slot (11).

5. A compression locking device based on linkage operation according to claim 2, characterized in that, A second pin (6) is movably connected between the top end of the rocker arm (3) and the end of the latch (4), and both ends of the second pin (6) are inserted into the second logic slot (12).

6. A compression locking device based on linkage operation according to claim 1, characterized in that, The latch (4) is internally connected to a third pin (7), and both ends of the third pin (7) are inserted into the third logic slot (13).

7. A compression locking device based on linkage operation according to claim 1, characterized in that, The end of the latch (4) away from the direction block (2) is configured as a wedge structure.

8. A compression locking device based on linkage operation according to claim 1, characterized in that, The end of the direction block (2) is fixedly connected to a connecting rod (8), and the other end of the connecting rod (8) is connected to a handle (9).

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