Lock catch assembly

Abstract

The utility model provides a lock catch assembly which comprises a connecting base, a connecting cavity is formed in the top end of the connecting base, a traction sleeve is connected into the connecting cavity in a sliding mode, a traction spring is connected between the traction sleeve and the connecting cavity, the traction spring enables the traction sleeve to tend to move downwards, and a traction hole is formed in the side wall of the traction sleeve. A first mounting hole is formed in the side wall of the connecting cavity, a first connecting pin is slidably connected into the first mounting hole, a first reset spring is arranged between the first connecting pin and the first mounting hole, and the first reset spring enables the first connecting pin to tend to be close to the axis of the traction sleeve; a connecting cylinder is slidably connected into the traction sleeve, a second mounting hole is formed in the side wall of the connecting cylinder, a second connecting pin is slidably connected into the second mounting hole, and a control structure is arranged in the connecting cylinder and has a locking state and an unlocking state. According to the utility model, acting force can be applied to an object to be connected, so that the object clings to a connecting part.

Description

Technical Field

[0001] The utility model relates to the technical field of lock buckles, in particular to a lock buckle component. Background Art

[0002] Lock buckles have been widely used in various devices, such as in the installation structure of air conditioning filters. However, existing lock buckles only connect the object to be connected to the connection part, but cannot exert force on the object to make it close to the connection part. During long-term use, the gap between the object and the connection seat will gradually increase with the increase in the number of unlocking times, thereby affecting the connection effect between the object and the connection part. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a locking assembly, which can apply a force to the objects to be connected so that the objects are tightly attached to the connection parts.

[0004] The utility model adopts the following technical solutions.

[0005] A lock assembly comprises a connecting seat, a connecting cavity is formed at the top of the connecting seat, a traction sleeve is slidably connected in the connecting cavity, a traction spring is connected between the traction sleeve and the connecting cavity, the traction spring makes the traction sleeve have a tendency to move downward, and a traction hole is formed on the side wall of the traction sleeve;

[0006] A first mounting hole is formed on the side wall of the connecting cavity, a first connecting pin is slidably connected in the first mounting hole, a first return spring is provided between the first connecting pin and the first mounting hole, and the first return spring makes the first connecting pin have a tendency to approach the axis of the traction sleeve;

[0007] A connecting cylinder is slidably connected in the traction sleeve, a second mounting hole is provided in the side wall of the connecting cylinder, a second connecting pin is slidably connected in the second mounting hole, a control structure is provided in the connecting cylinder, and the control structure has a locked state and an unlocked state;

[0008] When the control structure is in a locked state, the first connecting pin is retracted into the first mounting hole, and the second connecting pin is embedded in the traction hole;

[0009] When the control structure is in an unlocked state, the first connecting pin is embedded in the traction hole, and the second connecting pin is retracted into the second mounting hole.

[0010] Furthermore, the control structure comprises a control rod slidably connected to the connecting tube, and a side wall of the control rod is provided with an annular avoidance groove;

[0011] When the control structure is in a locked state, the second mounting hole is staggered with the avoidance groove;

[0012] When the control structure is in an unlocked state, the second mounting hole is aligned with the avoidance groove.

[0013] Furthermore, the side wall of the avoidance groove is inclined, the end of the second connecting pin close to the control rod is hemispherical, and the lower part of the end of the second connecting pin facing away from the control rod is inclined.

[0014] Furthermore, a second return spring is connected between the control rod and the connecting tube, and the second return spring makes the avoidance groove have a tendency to be offset from the second mounting hole.

[0015] Furthermore, the top end of the connecting cavity is threadedly connected to a limiting sleeve, the top end of the traction spring abuts against the limiting sleeve, and the bottom end of the traction spring abuts against the traction sleeve.

[0016] Furthermore, the outer wall of the traction sleeve is formed with a first guide rail extending axially, the inner wall of the connecting cavity is formed with a first guide groove slidably connected to the first guide rail, the outer wall of the connecting tube is formed with a second guide rail extending axially, and the inner wall of the traction sleeve is formed with a second guide groove slidably connected to the second guide rail.

[0017] The beneficial effects of the utility model are:

[0018] When the control structure of the utility model is in a locked state, the first connecting pin is retracted into the first mounting hole, the second connecting pin is embedded in the traction hole, and the second connecting pin connects the traction sleeve and the connecting cylinder together. Under the action of the traction spring, the connecting cylinder has a tendency to move downward, so that the object on the connecting cylinder is close to the connecting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is one of the structural diagrams of this embodiment (the control structure is in a locked state at this time);

[0021] Figure 2 This is the second structural diagram of this embodiment (the control structure is in an unlocked state at this time);

[0022] Figure 3 for Figure 2 AA section view.

[0023] Description of reference numerals:

[0024] Connecting seat 1, connecting cavity 11, first mounting hole 12,

[0025] Traction sleeve 2, traction hole 21, first guide rail 22,

[0026] Traction spring 3,

[0027] first connecting pin 41, first return spring 42,

[0028] Connecting tube 5, second mounting hole 51, second guide rail 52,

[0029] The second connecting pin 6,

[0030] Control rod 71, avoidance groove 711,

[0031] The second return spring 72,

[0032] Limit sleeve 8,

[0033] Object 9. DETAILED DESCRIPTION

[0034] The drawings are only used for illustrative purposes and should not be construed as limitations of this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product.

[0035] For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The technical solution of the utility model is further described below in conjunction with the drawings and embodiments.

[0036] A lock assembly as shown in the accompanying drawings comprises a connecting seat 1, a connecting cavity 11 is provided at the top of the connecting seat 1, a traction sleeve 2 is slidably connected in the connecting cavity 11, a traction spring 3 is connected between the traction sleeve 2 and the connecting cavity 11, the traction spring 3 makes the traction sleeve 2 have a tendency to move downward, and a traction hole 21 is provided on the side wall of the traction sleeve 2;

[0037] A first mounting hole 12 is formed on the side wall of the connecting cavity 11, a first connecting pin 41 is slidably connected in the first mounting hole 12, a first return spring 42 is provided between the first connecting pin 41 and the first mounting hole 12, and the first return spring 42 makes the first connecting pin 41 have a tendency to approach the axis of the traction sleeve 2;

[0038] A connecting cylinder 5 is slidably connected in the traction sleeve 2, a second mounting hole 51 is opened in the side wall of the connecting cylinder 5, a second connecting pin 6 is slidably connected in the second mounting hole 51, and a control structure is provided in the connecting cylinder 5, and the control structure has a locking state and an unlocking state;

[0039] When the control structure is in a locked state, the first connecting pin 41 is retracted into the first mounting hole 12, and the second connecting pin 6 is embedded in the traction hole 21;

[0040] When the control structure is in the unlocked state, the first connecting pin 41 is embedded in the traction hole 21 , and the second connecting pin 6 is retracted into the second mounting hole 51 .

[0041] Preferably, the control structure includes a control rod 71 slidably connected to the connecting tube 5, and a side wall of the control rod 71 is provided with an annular avoidance groove 711;

[0042] When the control structure is in a locked state, the second mounting hole 51 is staggered with the avoidance groove 711;

[0043] When the control structure is in the unlocked state, the second mounting hole 51 is aligned with the avoidance groove 711 .

[0044] Specifically, when the control structure is in the locked state, the second mounting hole 51 of the connecting tube 5 is staggered with the avoidance groove 711 of the control rod 71, so that the second connecting pin 6 protrudes from the outer wall of the connecting tube 5 and is embedded in the traction hole 21, thereby connecting the traction sleeve 2 with the connecting tube 5. In addition, under the action of the traction spring 3, the connecting tube 5 connected with the traction sleeve 2 also has a tendency to move downward, so that the object 9 on the connecting tube 5 is closely attached to the connecting seat 1.

[0045] Specifically, when the control structure is in the unlocked state, the second mounting hole 51 of the connecting tube 5 is aligned with the avoidance groove 711 of the control rod 71. Driven by the first return spring 42, the first connecting pin 41 is embedded in the traction hole 21, and the second connecting pin 6 originally embedded in the traction hole 21 is pushed away from the traction hole 21, so that the second connecting pin 6 is retracted into the second mounting hole 51. In this way, the connecting tube 5 can be pulled out of the traction sleeve 2.

[0046] Preferably, the side wall of the avoidance groove 711 is inclined, the end of the second connecting pin close to the control rod 71 is hemispherical, and the lower part of the end of the second connecting pin facing away from the control rod 71 is inclined.

[0047] Preferably, a second return spring 72 is connected between the control rod 71 and the connecting tube 5 , and the second return spring 72 makes the avoidance groove 711 have a tendency to be offset from the second mounting hole 51 .

[0048] Preferably, the top end of the connecting cavity 11 is threadedly connected to the limiting sleeve 8, the top end of the traction spring 3 abuts against the limiting sleeve 8, and the bottom end of the traction spring 3 abuts against the traction sleeve 2. Specifically, the user can adjust the position of the limiting sleeve 8 to change the deformation of the traction spring 3, thereby adjusting the pressure applied by the object 9 on the connecting cylinder 5 to the connecting seat 1.

[0049] Preferably, the outer wall of the traction sleeve 2 is formed with a first guide rail 22 extending axially, the inner wall of the connecting cavity 11 is formed with a first guide groove slidably connected to the first guide rail 22, the outer wall of the connecting tube 5 is formed with a second guide rail 52 extending axially, and the inner wall of the traction sleeve 2 is formed with a second guide groove slidably connected to the second guide rail 52.

[0050] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A lock assembly, comprising a connecting seat, characterized in that: A connecting cavity is provided at the top of the connecting seat, a traction sleeve is slidably connected in the connecting cavity, a traction spring is connected between the traction sleeve and the connecting cavity, the traction spring makes the traction sleeve have a tendency to move downward, and a traction hole is provided on the side wall of the traction sleeve; A first mounting hole is formed on the side wall of the connecting cavity, a first connecting pin is slidably connected in the first mounting hole, a first return spring is provided between the first connecting pin and the first mounting hole, and the first return spring makes the first connecting pin have a tendency to approach the axis of the traction sleeve; A connecting cylinder is slidably connected in the traction sleeve, a second mounting hole is provided in the side wall of the connecting cylinder, a second connecting pin is slidably connected in the second mounting hole, a control structure is provided in the connecting cylinder, and the control structure has a locked state and an unlocked state; When the control structure is in a locked state, the first connecting pin is retracted into the first mounting hole, and the second connecting pin is embedded in the traction hole; When the control structure is in an unlocked state, the first connecting pin is embedded in the traction hole, and the second connecting pin is retracted into the second mounting hole.

2. A lock assembly according to claim 1, characterized in that: The control structure comprises a control rod slidably connected to the connecting tube, and a side wall of the control rod is provided with an annular avoidance groove; When the control structure is in a locked state, the second mounting hole is staggered with the avoidance groove; When the control structure is in an unlocked state, the second mounting hole is aligned with the avoidance groove.

3. A lock assembly according to claim 2, characterized in that: The side wall of the avoidance groove is inclined, the end of the second connecting pin close to the control rod is hemispherical, and the lower part of the end of the second connecting pin facing away from the control rod is inclined.

4. A lock assembly according to claim 2, characterized in that: A second return spring is connected between the control rod and the connecting tube, and the second return spring makes the avoidance groove have a tendency to be offset from the second mounting hole.

5. The lock assembly according to claim 1, characterized in that: The top end of the connecting cavity is threadedly connected to a limiting sleeve, the top end of the traction spring abuts against the limiting sleeve, and the bottom end of the traction spring abuts against the traction sleeve.

6. A lock assembly according to claim 1, characterized in that: The outer wall of the traction sleeve is formed with a first guide rail extending axially, the inner wall of the connecting cavity is formed with a first guide groove slidably connected to the first guide rail, the outer wall of the connecting tube is formed with a second guide rail extending axially, and the inner wall of the traction sleeve is formed with a second guide groove slidably connected to the second guide rail.

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