Anti-impact pressing type lock catch structure with self-locking function

Abstract

The utility model discloses an anti-impact pressing type lock catch structure with a self-locking function, belongs to the technical field of mechanical locks, solves the problem that an existing product is difficult to give consideration to impact resistance, self-locking reliability and operation convenience, and comprises a fixed shell, a mounting cavity is formed in the right side of the top face of the fixed shell, and a locking groove is formed in the right side of the top face of the fixed shell. Symmetrically-distributed clamping grooves are formed in the front side and the rear side of the mounting cavity, limiting plates are slidably sleeved with the clamping grooves, round holes are formed in the middles of the limiting plates in a penetrating mode, inserting holes are transversely formed in the middle of the left side of the fixing shell in a penetrating mode, and limiting shafts are movably sleeved with the inserting holes. Through the arrangement of the handle, the cover plate, the limiting pin, the limiting plate, the tower spring, the fixed shell, the clamping spring check ring, the set screw, the spring and the limiting shaft, the anti-impact locking device has the advantages of being simple in structure, small in size, light in weight, excellent in anti-impact performance and the like, a double-spring matching structure is adopted, locking and unlocking actions can be completed through single-time pressing, and the anti-impact performance is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lock technology, specifically to an impact-resistant, push-button lock structure with a self-locking function. Background Technology

[0002] There are few impact-resistant push-button locks with self-locking functions on the market. While existing locks are used in various fields, products with different designs and application scenarios have their own advantages and disadvantages. Some products combine magnetic and mechanical self-locking functions, offering advantages such as convenient operation and rapid attachment, but they cannot meet the impact resistance requirements. Some products use ratchet or eccentric wheel self-locking structures with buffer designs, providing extremely high impact resistance and reliability, but their structure is complex, bulky, and less convenient to operate.

[0003] Overall, existing products struggle to balance impact resistance, self-locking reliability, and ease of operation.

[0004] Therefore, we propose an impact-resistant, push-button locking structure with a self-locking function. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an impact-resistant, push-button type locking structure with a self-locking function, which solves the problem of existing products struggling to balance impact resistance, self-locking reliability, and ease of operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant, press-type latch structure with self-locking function, comprising a fixed outer shell, an installation cavity on the right side of the top surface of the fixed outer shell, symmetrically distributed slots on the front and rear sides of the installation cavity, a limiting plate slidingly fitted inside the slots, a circular hole penetrating through the center of the limiting plate, an insertion hole transversely penetrating through the center of the left side of the fixed outer shell, a limiting shaft movably fitted inside the insertion hole, a spring fitted on the outer surface of the right end of the limiting shaft, the left end of the spring fixedly mounted on the outer surface of the limiting shaft, a retaining ring fixedly mounted on the right end of the spring, the right side of the retaining ring abutting against the left side of the limiting plate, a tower spring fixedly mounted on the bottom surface of the limiting plate, a limiting pin fixedly mounted on the top surface of the limiting plate, the limiting pin movably fitted inside a cover plate, and the cover plate being mounted on top of the fixed outer shell by screws.

[0007] Preferably, a connecting plate is fixedly installed on the left end face of the limiting shaft, and an installation groove is provided on the right side of the bottom surface of the mounting cavity. The bottom end of the tower spring is fixedly installed inside the installation groove. The connecting plate facilitates the movement of the limiting shaft, and the installation groove facilitates the storage of the bottom end of the tower spring.

[0008] Preferably, the top end of the limiting pin extends to the top surface of the cover plate and is fitted with a handle via a countersunk screw, wherein the handle facilitates the up-and-down movement of the limiting pin.

[0009] Preferably, a threaded hole communicating with the insertion hole is provided on the left side of the top surface of the fixed housing. A locking screw is fitted inside the threaded hole. A first limiting groove is provided on the outer surface of the left end of the limiting shaft, which is opposite to the position of the threaded hole. The limiting shaft can be limited by rotating the locking screw so that the bottom end of the locking screw extends into the interior of the first limiting groove.

[0010] Preferably, the outer surface of the right end of the limiting shaft is provided with a second limiting groove and a third limiting groove from left to right. The first limiting groove, the second limiting groove and the third limiting groove are all annular. The diameter of the limiting shaft is the same as the diameter of the circular hole. The right end of the limiting shaft is movably fitted inside the circular hole. When the locking structure is locked, the bottom of the circular hole moves upward under the action of the spring force, and then the bottom of the circular hole is engaged inside the second limiting groove. When the locking structure is in the unlocked state, the bottom of the circular hole is engaged inside the third limiting groove.

[0011] This utility model provides an impact-resistant, push-button type locking structure with a self-locking function. It has the following advantages:

[0012] This impact-resistant, push-button lock with self-locking function features a simple and rational design. It consists of a handle, cover plate, limit pin, limit plate, tower spring, fixed housing, retaining ring, set screw, spring, and limiting shaft. It is characterized by its simple structure, small size, light weight, and excellent impact resistance. Employing a double-spring structure, locking and unlocking can be completed with a single press. The innovative design of the guide groove and spring preload guides the force on the shaft to the entire lock body housing upon impact, and then transfers it to the device via screw connection, significantly improving impact resistance. The spring structure enables the lock function, ensuring long-term reliability while avoiding the need for regular maintenance required by traditional locks. It solves the problem of existing products struggling to balance impact resistance, self-locking reliability, and ease of operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0015] In the diagram: 1. Handle; 2. Cover plate; 3. Limiting pin; 4. Limiting plate; 41. Round hole; 5. Tower spring; 6. Fixed outer shell; 61. Mounting cavity; 62. Slot; 63. Insertion hole; 64. Threaded hole; 65. Mounting groove; 7. Snap ring retainer; 8. Locking screw; 9. Spring; 10. Limiting shaft; 101. Connecting plate; 102. First limiting groove; 103. Second limiting groove; 104. Third limiting groove. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1:

[0018] like Figure 1-2 As shown: The device includes a fixed outer shell 6. A mounting cavity 61 is formed on the right side of the top surface of the fixed outer shell 6. Symmetrically distributed slots 62 are formed on the front and rear sides of the mounting cavity 61. A limiting plate 4 is slidably fitted inside the slots 62. A circular hole 41 is formed through the center of the limiting plate 4. A transverse insertion hole 63 is formed through the center of the left side of the fixed outer shell 6. A movable shaft 10 is movably fitted inside the insertion hole 63. A spring 9 is fitted on the outer surface of the right end of the movable shaft 10. The left end of the spring 9 is fixedly installed on the outer surface of the movable shaft 10. A retaining ring 7 is fixedly installed on the right end of the spring 9. The right side of the retaining ring 7 abuts against the left side of the limiting plate 4. A tower spring 5 is fixedly installed on the bottom surface of the limiting plate 4. A limiting pin 3 is fixedly installed on the top surface of the limiting plate 4. The limiting pin 3 is movably fitted inside the cover plate 2. The cover plate 2 is installed on top of the fixed outer shell 6 by screws.

[0019] Furthermore, a connecting plate 101 is fixedly installed on the left end face of the limiting shaft 10, and an installation groove 65 is provided on the right side of the bottom surface of the mounting cavity 61. The bottom end of the tower spring 5 is fixedly installed inside the installation groove 65. The connecting plate 101 facilitates the movement of the limiting shaft 10, and the installation groove 65 facilitates the storage of the bottom end of the tower spring 5.

[0020] Furthermore, the top of the limiting pin 3 extends to the top surface of the cover plate 2 and is fitted with a handle 1 via a countersunk screw, wherein the handle 1 facilitates the up-and-down movement of the limiting pin 3.

[0021] Furthermore, a threaded hole 64 communicating with the insertion hole 63 is provided on the left side of the top surface of the fixed housing 6. A locking screw 8 is installed inside the threaded hole 64. A first limiting groove 102 is provided on the outer surface of the left end of the limiting shaft 10, which is opposite to the position of the threaded hole 64. By rotating the locking screw 8, the bottom end of the locking screw 8 extends into the interior of the first limiting groove 102, thereby limiting the movement of the limiting shaft 10.

[0022] Furthermore, the outer surface of the right end of the limiting shaft 10 is provided with a second limiting groove 103 and a third limiting groove 104 from left to right. The first limiting groove 102, the second limiting groove 103 and the third limiting groove 104 are all annular. The diameter of the limiting shaft 10 is the same as the diameter of the circular hole 41. The right end of the limiting shaft 10 is movably fitted inside the circular hole 41. When the locking structure is locked, the bottom of the circular hole 41 moves upward under the action of the spring force of the tower spring 5, and then the bottom of the circular hole 41 is engaged inside the second limiting groove 103. When the locking structure is in the unlocked state, the bottom of the circular hole 41 is engaged inside the third limiting groove 104.

[0023] The working principle and usage process of this utility model: When using this impact-resistant press-type self-locking latch structure, press the handle 1 down, which will cause the limiting pin 3 and the limiting plate 4 to move downward. At this time, the tower spring 5 is compressed. Then, when the round hole 41 is coaxial with the limiting shaft 10, the limiting shaft 10 can be pulled outward through the connecting plate 101. At this time, the spring 9 is compressed. Then release the handle 1. Under the action of the spring force of the tower spring 5, the tower spring 5 pushes the limiting plate 4, the limiting pin 3 and the handle 1 to move upward. Then, the bottom end of the round hole 41 is engaged in the interior of the third limiting groove 104, which can limit the limiting shaft 10, and the latch can be opened.

[0024] If it is necessary to lock this latch, press the handle 1 down again to move the limiting pin 3 and the limiting plate 4 downward. At this time, the tower spring 5 is compressed, and then until the round hole 41 is coaxial with the limiting shaft 10, the elastic force of the spring 9 drives the right end of the limiting shaft 10 to extend to the right side of the fixed housing 6 for locking. At this time, the second limiting groove 103 is aligned with the round hole 41. Then release the handle 1. Under the action of the elastic force of the tower spring 5, the tower spring 5 pushes the limiting plate 4, the limiting pin 3 and the handle 1 upward. Then the bottom end of the round hole 41 is engaged with the inner wall of the second limiting groove 103, which can limit the limiting shaft 10.

[0025] In special circumstances such as wartime, the locking screw 8 can be tightened to further lock the latch. During the tightening process, the bottom end of the locking screw 8 extends into the interior of the first limiting groove 102, thereby limiting the movement shaft 10.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impact-resistant, push-button type latch structure with self-locking function, characterized in that: The fixed housing (6) includes a mounting cavity (61) on the right side of its top surface. Symmetrically distributed slots (62) are provided on the front and rear sides of the mounting cavity (61). A limiting plate (4) is slidably fitted inside the slots (62). A circular hole (41) is provided through the middle of the limiting plate (4). A transverse insertion hole (63) is provided through the middle of the left side of the fixed housing (6). A limiting shaft (10) is movably fitted inside the insertion hole (63). The outer surface of the right end of the limiting shaft (10) is fitted with a sleeve. A spring (9) is provided. The left end of the spring (9) is fixedly installed on the outer surface of the limiting shaft (10). A retaining ring (7) is fixedly installed on the right end of the spring (9). The right side of the retaining ring (7) abuts against the left side of the limiting plate (4). A tower spring (5) is fixedly installed on the bottom surface of the limiting plate (4). A limiting pin (3) is fixedly installed on the top surface of the limiting plate (4). The limiting pin (3) is movably fitted inside the cover plate (2). The cover plate (2) is installed above the fixed outer shell (6) by screws.

2. The impact-resistant, push-button type self-locking latch structure according to claim 1, characterized in that: A connecting plate (101) is fixedly installed on the left end face of the limiting shaft (10), and an installation groove (65) is opened on the right side of the bottom surface of the mounting cavity (61). The bottom end of the tower spring (5) is fixedly installed inside the installation groove (65).

3. The impact-resistant, push-button type self-locking latch structure according to claim 1, characterized in that: The top of the limiting pin (3) extends to the top surface of the cover plate (2) and is fitted with a handle (1) by a countersunk screw.

4. The impact-resistant, push-button type self-locking latch structure according to claim 1, characterized in that: The left side of the top surface of the fixed housing (6) is provided with a threaded hole (64) that communicates with the insertion hole (63). The threaded hole (64) is fitted with a locking screw (8). The outer surface of the left end of the limiting shaft (10) is provided with a first limiting groove (102) that is opposite to the position of the threaded hole (64).

5. The impact-resistant, push-button type latch structure with self-locking function according to claim 4, characterized in that: The outer surface of the right end of the limiting shaft (10) is provided with a second limiting groove (103) and a third limiting groove (104) from left to right. The first limiting groove (102), the second limiting groove (103) and the third limiting groove (104) are all annular. The diameter of the limiting shaft (10) is the same as the diameter of the circular hole (41). The right end of the limiting shaft (10) is movably fitted inside the circular hole (41).

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