Anti-hooking bolt capable of being quickly disassembled and assembled

Abstract

The utility model relates to a quick disassembly and assembly anti-hooking bolt which comprises a bolt supporting piece, an elastic element is arranged in the middle of the bolt supporting piece, a first bolt is further arranged in the bolt supporting piece in a penetrating mode, a limiting structure on the first bolt abuts against one end of the elastic element, and the elastic element deforms due to sliding of the first bolt. After the first bolt is inserted, quick locking is realized by rotating a certain angle and utilizing engagement of threads; during disassembly, the first bolt can be unlocked and reset by reversely rotating for the same angle, the whole structure is simple and rapid, and convenience is brought to use.

Description

Technical Field

[0001] The utility model relates to the technical field of latches, in particular to a quick-disassembly and anti-hooking latch. Background Art

[0002] In many industrial and mechanical assembly scenarios, frequent installation and removal of latches is required to connect or disconnect components. Traditional latches can be cumbersome and time-consuming to install and remove. For example, when connecting components in large equipment, each removal and replacement of the latch takes considerable time, impacting overall maintenance, repair, or assembly progress. Therefore, developing quick-release latches can significantly improve the efficiency of these operations. In specific environments, such as textile mills and food processing plants, there are often entangled items like fibers, threads, and packaging materials. Conventional latches can easily become snagged on these items during use, potentially damaging the latch itself and potentially causing product damage, such as jamming and injuries to personnel handling the snagged items. Anti-snagging latches can effectively prevent this from happening. Different industries, such as aerospace, automotive manufacturing, and construction machinery, have varying requirements for latches. Some require convenient operation in confined spaces, while others must maintain performance in harsh environments such as humidity, dust, and high temperatures. The research on quick-release anti-hook latches aims to develop latch products that can be widely adapted to these different scenarios, which are convenient for quick installation and removal and can prevent problems such as hooking.

[0003] The authorization announcement number is CN208106933U, which discloses a quick latch. Combined with its specification and drawings, its scheme has multiple first assemblies and second assemblies of the latch body, which are easy to install and open, and the pin shaft assembly can be repaired or replaced. The workpiece can be freely fixed and released by pulling the main shaft body. However, the unlocking mode of this pulling method is too simple, and it is not unlocked quickly enough during equipment maintenance, which is not conducive to use. Summary of the Invention

[0004] The utility model mainly addresses the problems existing in the use of the latch and invents a quick-disassembly and anti-hooking latch with an elastic snap-on structure. The principle is that after the first latch is inserted into the interior of the connecting hole, the snap-on boss will pop out under the action of its own elastic force, and the limiting structure will be stuck in the circular groove on the snap-on boss. The elastic element will not reset the first latch. When resetting is required, the snap-on boss only needs to be pressed to retract it, and the first latch can be easily reset; the rotation locking mechanism: after the first latch is inserted, it can be quickly locked by rotating it a certain angle and utilizing the engagement of the thread; when disassembling, it can be released and reset by rotating it in the opposite direction by the same angle.

[0005] The invention objective of the utility model is achieved through the following technical solution: a quick-disassembly anti-hook latch, comprising a latch support, an elastic element is provided in the middle of the latch support, a first latch is also passed through the latch support, a limiting structure on the first latch abuts against one end of the elastic element, and the sliding of the first latch causes the elastic element to deform.

[0006] Preferably, the elastic element is a metal spring. This configuration is because metal springs have good elasticity and low cost.

[0007] Preferably, a rectangular groove is provided in the middle of the latch support, connecting holes are provided on both sides of the latch support, and the first latch passes through the connecting holes on both sides.

[0008] Preferably, the first latch includes a first column and a second column, and the diameter of the second column is larger than the diameter of the first column.

[0009] Preferably, the limiting structure is a cylindrical boss, the diameter of which is larger than the diameter of the cross-sectional area of the metal spring. This arrangement enables the cylindrical boss to squeeze the metal spring to cause it to deform.

[0010] Preferably, a snap-on boss is further provided in the middle of the latch support, the snap-on boss is elastic, and a circular groove adapted to the limiting structure is provided on the surface of the snap-on boss, which is provided to achieve locking of the first latch.

[0011] Preferably, a plurality of fixing holes are further provided at the bottom of the latch support, and the first column on the first latch is connected to the inside of the connecting hole by means of threads.

[0012] Preferably, the material of the latch support and the first latch is alloy steel, which is designed to have sufficient rigidity and toughness to withstand the force between the connecting parts.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The first way to quickly control the first pin is an elastic snap-fit structure. The principle is that after the first pin is inserted into the inside of the connecting hole, the snap-fit boss will pop out under the action of its own elastic force, and the limiting structure will be locked in the circular groove on the snap-fit boss. The elastic element will not reset the first pin. When resetting, you only need to press the snap-fit boss to retract it, and you can easily reset the first pin. The whole structure is simple and fast, which brings convenience when used; 2. The second way to quickly control the first pin is a rotation locking mechanism: after the first pin is inserted, it is quickly locked by rotating it a certain angle and utilizing the engagement of the thread; when disassembling, the first pin can be unlocked and reset by rotating it in the opposite direction by the same angle. The whole structure is simple and fast, which brings convenience when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 This is a schematic diagram of the limiting structure of the utility model after being clamped inside the buckle boss.

[0017] Markings in the figure: 1. Pin support; 11. Rectangular groove; 12. Connecting hole; 13. Fixing hole; 2. First pin; 21. First column; 22. Second column; 3. Limiting structure; 4. Elastic element; 5. Snap-fit boss; 51. Circular groove. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0019] like Figures 1 to 3 As shown, a quick-disassembly and anti-hooking latch, in a first embodiment: includes a latch support 1 and a first latch 2 made of alloy steel. This configuration is to have sufficient rigidity and toughness to withstand the forces between the connecting parts, and the surface of the latch support 1 is specially knurled and polished to reduce the possibility of adhesion and hooking of easily entangled objects such as fibers and silk threads. A rectangular groove 11 is provided in the middle of the latch support 1, and an elastic element 4 is provided in the middle of the latch support 1, that is, inside the rectangular groove 11. Specifically, the elastic element 4 is a metal spring. The metal spring has good elasticity and low cost, and is suitable as the elastic element 4 in this embodiment. A first latch 2 is also penetrated by the latch support 1, wherein connecting holes 12 are provided on both sides of the latch support 1. The first latch 2 penetrates the inside of the connecting holes 12 on both sides, and the first latch 2 can slide inside the connecting holes 12 The first latch 2 includes a first column 21 and a second column 22, the diameter of the second column 22 is larger than the diameter of the first column 21, and the end of the first column 21 is provided with a conical head for easy insertion, which can smoothly guide the latch into the connecting hole; the end of the second column 22 is provided with a gripping portion for easy operation, such as a disc or handle shape with an anti-slip texture, and the limiting structure 3 on the first latch 2 abuts against one end of the elastic element 4, and the limiting structure 3 is a columnar boss, and the diameter of the columnar boss is larger than the diameter of the cross-sectional area of the metal spring. After such a setting, the sliding of the first latch 2 causes the elastic element 4 to deform. If it is necessary to release the entire first latch 2 from the limit of the external mechanism, the second column 22 can be pulled to make the first column 21 slide inside the connecting hole 12. When the first column 21 slides, the limiting structure 3 will continuously squeeze the elastic element 4. At this time, the second column 22 can be released after the external mechanism is opened.

[0020] In the first embodiment, a snap-fit boss 5 is further provided in the middle of the latch support 1. The snap-fit boss 5 is elastic, and a circular groove 51 is provided on the surface of the snap-fit boss 5 that is adapted to the limiting structure 3. A plurality of fixing holes 13 are also provided at the bottom of the latch support 1. The fixing holes 13 can be used to detachably install the latch support 1 on the surface or inside of other equipment. This arrangement realizes an elastic snap-fit structure: when the first latch 2 is inserted into the interior of the connecting hole 12, the snap-fit boss 5 will pop out under the action of its own elastic force, and the limiting structure 3 will be locked into the circular groove 51 on the snap-fit boss 5, thereby realizing rapid fixation of the first latch 2. At this time, the first latch 2 is in a stable state, and the elastic element 4 will not reset the first latch 2. When reset is required, it is only necessary to press the release button on the snap-fit boss 5 (the release button is linked to the snap-fit boss 5) to retract the snap-fit boss 5, so that the first latch 2 can be easily reset.

[0021] The second embodiment differs only in that the first column 21 is threadedly connected to the interior of the connection hole 12. This creates a rotational locking mechanism: after the first latch 2 is inserted, it can be quickly locked by rotating it through a certain angle (e.g., 90 or 180 degrees) through the engagement of the threads. To remove it, a reverse rotation through the same angle releases the lock and resets the first latch 2. This rotational action can be facilitated by a specially designed rotary handle (foldable or detachably attached to the grip).

[0022] In the first embodiment and the second embodiment, the latch support 1 and the first latch 2 are manufactured by stamping and die-casting processes, ensuring high dimensional accuracy and uniform structural strength of each component.

[0023] For key components such as the buckle boss 5 and the release button, wear-resistant engineering plastics or special metal alloys with good elastic recovery ability are used to ensure that they can still work normally after repeated use.

[0024] Working principle and usage of this utility model:

[0025] Elastic snap-fit structure: When the first latch 2 is inserted into the connecting hole 12, the snap-fit protrusion 5 pops out under its own elastic force, and the limiting structure 3 snaps into the circular groove 51 on the snap-fit protrusion 5, thereby quickly fixing the first latch 2. At this time, the first latch 2 is in a stable state, and the elastic element 4 will not reset the first latch 2. When reset is required, the first latch 2 can be easily reset by simply pressing the release button on the snap-fit protrusion 5 (the release button is linked to the snap-fit protrusion 5) to retract the snap-fit protrusion 5.

[0026] Rotational locking mechanism: After insertion, the first latch 2 is quickly locked by rotating it through a certain angle (e.g., 90 or 180 degrees) using the interlocking threads. For removal, rotating it in the opposite direction by the same angle releases the lock and resets the first latch 2. This rotational action is facilitated by a specially designed rotating handle (foldable or detachably attached to the grip).

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A quick-release anti-hook latch, comprising a latch support (1), characterized in that: An elastic element (4) is provided in the middle of the latch support (1), and a first latch (2) is also provided through the latch support (1). The limiting structure (3) on the first latch (2) abuts against one end of the elastic element (4), and the sliding of the first latch (2) causes the elastic element (4) to deform.

2. The quick-release anti-hook latch according to claim 1, characterized in that: The elastic element (4) is a metal spring.

3. The quick-release anti-hook latch according to claim 2, characterized in that: A rectangular groove (11) is provided in the middle of the latch support (1), connecting holes (12) are provided on both sides of the latch support (1), and the first latch (2) passes through the connecting holes (12) on both sides.

4. The quick-release anti-hook latch according to claim 3, characterized in that: The first latch (2) comprises a first column (21) and a second column (22), wherein the diameter of the second column (22) is greater than the diameter of the first column (21).

5. The quick-release anti-hook latch according to claim 4, characterized in that: The limiting structure (3) is a cylindrical boss, and the diameter of the cylindrical boss is larger than the diameter of the cross-sectional area of the metal spring.

6. The quick-release anti-hook latch according to claim 5, characterized in that: A snap-fit boss (5) is further provided in the middle of the latch support (1); the snap-fit boss (5) is elastic, and a circular groove (51) adapted to the limiting structure (3) is provided on the surface of the snap-fit boss (5).

7. The quick-release anti-hook latch according to claim 6, characterized in that: The bottom of the latch support (1) is also provided with a plurality of fixing holes (13), and the first column (21) on the first latch (2) is connected to the inside of the connecting hole (12) by means of threads.

8. The quick-release anti-hook latch according to any one of claims 1 to 7, characterized in that: The material of the latch support (1) and the first latch (2) is alloy steel.

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