Self-locking anti-falling structure of quick coupler

Abstract

The utility model relates to the technical field of moxibustion equipment, in particular to a self-locking anti-falling structure of a quick coupler, which comprises a pipe joint pipeline main body, the pipe joint pipeline main body consists of a left side connecting pipe and a right side connecting pipe, and the left side connecting pipe and the right side connecting pipe are jointly provided with an anti-falling component; a positioning hole is formed in the connecting end of the left connecting pipe, a cavity is formed in the connecting end edge of the right connecting pipe, and compared with a traditional simple buckle or threaded connection mode, the anti-falling assembly and the unique multiple anti-falling structural design that the T-shaped positioning block is matched with the positioning hole, the inserting block is locked with the limiting groove, and the auxiliary threaded sleeve fastens the fixing ring, the anti-falling effect is good, and the anti-falling effect is good. The T-shaped positioning block is inserted into the positioning hole to form initial positioning, the insertion block is matched with the limiting groove to limit transverse movement of the T-shaped positioning block, the auxiliary threaded sleeve tightly abuts against the fixing ring through the rubber layer, firm constraint in the three-dimensional direction is achieved, the risks of loosening and falling off of the connector are greatly reduced, and stable operation of a pipeline system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of moxibustion equipment technology, specifically to a self-locking anti-detachment structure for a quick-connect connector. Background Technology

[0002] In the field of pipe connections, quick-connect couplings are widely used in many scenarios such as industrial pipelines and civil water supply and drainage pipelines due to their advantages such as convenient installation and easy disassembly.

[0003] However, existing quick-connect couplings have certain shortcomings in terms of connection stability. Some quick-connect couplings use simple snap-fit ​​or threaded connections, which are prone to loosening or even falling off under conditions such as vibration and pressure fluctuations, affecting the normal operation of the pipeline system. Some quick-connect couplings, although equipped with anti-detachment structures, have complex structures and cumbersome installation processes, increasing the difficulty of operation and installation time costs. Therefore, this utility model proposes a self-locking anti-detachment structure for quick-connect couplings to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking anti-detachment structure for quick-connect couplings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking anti-detachment structure for a quick-connect coupling, comprising a pipe coupling body, wherein the pipe coupling body is composed of a left connecting pipe and a right connecting pipe, and an anti-detachment component is provided on both the left connecting pipe and the right connecting pipe;

[0006] The left connecting end of the pipe is provided with a positioning hole, the right connecting end edge of the pipe is provided with a cavity, a T-shaped positioning block is provided above the cavity, the left and right ends of the T-shaped positioning block are spring-loaded in the cavity of the right connecting pipe, the T-shaped positioning block is provided with a limiting groove, and an insert is provided to fit the limiting groove. The insert is fitted with a fixing ring and is sleeved on the right connecting pipe. The right connecting pipe is provided with a threaded structure, and an auxiliary threaded sleeve is fitted at the threaded structure.

[0007] The connecting end of the left pipe is inserted into the cavity of the right pipe, the downward extension of the T-shaped positioning block is inserted into the positioning hole of the left pipe, the insert of the end of the fixing ring is inserted into the limiting groove of the T-shaped positioning block, and the auxiliary screw sleeve is screwed to make the fixing ring tightly abut against the end of the right pipe.

[0008] Preferably, anti-detachment components are respectively provided at the upper and lower ends of the left and right connecting pipes.

[0009] Preferably, the diameter of the limiting groove of the T-shaped positioning block is adapted to the diameter of the insert block integrally connected to the fixing ring.

[0010] Preferably, the length of the insert block integrally connected to the fixing ring is equal to the inner cavity length of the T-shaped positioning block limiting groove.

[0011] Preferably, the positioning hole at the left end of the connecting pipe is adapted to the diameter of the downward-extending end of the T-shaped positioning block.

[0012] Preferably, the abutting surface of the auxiliary screw sleeve is provided with a rubber layer, which can tightly abut against the end face of the fixing ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) Through the anti-loosening components and the unique T-shaped positioning block and positioning hole cooperation, the insertion block and the limiting groove locking, and the auxiliary threaded sleeve fastening the fixing ring, the T-shaped positioning block can effectively resist the influence of working conditions such as vibration and pressure fluctuation compared with the traditional simple snap or threaded connection method. The T-shaped positioning block is inserted into the positioning hole to form the initial positioning, the insertion block and the limiting groove cooperate to restrict its lateral movement, and the auxiliary threaded sleeve tightly abuts against the fixing ring through the rubber layer to achieve a firm constraint in three dimensions, which greatly reduces the risk of joint loosening and falling off, and ensures the stable operation of the pipeline system.

[0015] (2) Installation can be completed by pressing the T-shaped positioning block, inserting the plug, and tightening the auxiliary screw sleeve. No complicated tools or professional skills are required. At the same time, the spring makes the T-shaped positioning block automatically reset, which is convenient for repeated disassembly and assembly. The precise matching of the dimensions of each component ensures its positioning stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the left-side connecting pipe and the right-side pipeline of this utility model.

[0018] Figure 3 This is a schematic diagram of the right-side pipe connection part of this utility model.

[0019] Figure 4 This is a schematic diagram of the fixing ring and insert block structure of this utility model.

[0020] In the diagram: 1. Pipe fitting body; 2. Left side connector; 21. Positioning hole; 3. Right side connector; 31. Threaded structure; 4. T-shaped positioning block; 411. Limiting groove; 42. Spring; 43. Insert block; 44. Fixing ring; 5. Auxiliary screw sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a self-locking anti-detachment structure for a quick-connect coupling, including a pipe coupling body 1, which is composed of a left connecting pipe 2 and a right connecting pipe 3. Both the left connecting pipe 2 and the right connecting pipe 3 are provided with an anti-detachment component. The connecting end of the left connecting pipe 2 has a positioning hole 21, and the connecting edge of the right connecting pipe 3 has a cavity. A T-shaped positioning block 4 is provided above the cavity. The left and right ends of the T-shaped positioning block 4 are installed in the cavity of the right connecting pipe 3 by springs 42. The T-shaped positioning block 4 has a limiting groove 411. An insert 43 is provided to match the limiting groove 411. The insert 43 and the fixing ring 44 are fitted onto the right pipe 3. The right pipe 3 is provided with a threaded structure 31. An auxiliary screw sleeve 5 is provided at the threaded structure 31. The connecting end of the left pipe 2 is inserted into the cavity of the right pipe 3. The downward extension of the T-shaped positioning block 4 is inserted into the positioning hole 21 of the left pipe 2. The insert 43 at the end of the fixing ring 44 is inserted into the limiting groove 411 of the T-shaped positioning block 4. The auxiliary screw sleeve 5 is screwed on so that the fixing ring 44 is tightly against the end of the right pipe 3.

[0023] Through the anti-detachment components and the unique T-shaped positioning block 4 cooperating with the positioning hole 21, the insertion block 43 locking with the limiting groove 411, and the auxiliary threaded sleeve 5 fastening the fixing ring 44, the design of multiple anti-detachment structures can effectively resist the influence of working conditions such as vibration and pressure fluctuations compared with the traditional simple snap or threaded connection method. The T-shaped positioning block 4 is inserted into the positioning hole 21 to form initial positioning, the insertion block 43 cooperates with the limiting groove 411 to restrict its lateral movement, and the auxiliary threaded sleeve 5 tightly abuts against the fixing ring 44 through the rubber layer to achieve a firm constraint in three dimensions, which greatly reduces the risk of joint loosening and detachment and ensures the stable operation of the pipeline system.

[0024] Please see Figures 1 to 4 Anti-detachment components are respectively installed at the upper and lower ends of the left pipe 2 and the right pipe 3.

[0025] Please see Figures 1 to 4 The diameter of the limiting groove 411 of the T-shaped positioning block 4 is compatible with the diameter of the insert block 43 that is integrally connected to the fixing ring 44.

[0026] Please see Figures 1 to 4 The length of the insert 43, which is integrally connected to the fixing ring 44, is equal to the length of the inner cavity of the limiting groove 411 of the T-shaped positioning block 4.

[0027] Please see Figures 1 to 4 The positioning hole 21 at the connecting end of the left pipe 2 is compatible with the diameter of the downward extension end of the T-shaped positioning block 4.

[0028] Please see Figures 1 to 4 The abutting surface of the auxiliary screw sleeve 5 is provided with a rubber layer, which can tightly abut against the end face of the fixed ring 44. When the system encounters vibration or pressure fluctuation, the elastic buffering effect of the rubber layer can reduce the rigid collision between the auxiliary screw sleeve 5 and the fixed ring 44, and reduce the risk of loosening caused by vibration at the threaded connection.

[0029] In use, align the connecting end of the left connector 2 with the cavity port of the right connector 3. At this time, the T-shaped positioning block 4 is held upright by the preload of the spring 42, and its downward extension is higher than the insertion path of the left connector 2. Insert the left connector 2 axially into the cavity of the right connector 3 until the positioning hole 21 is perpendicularly aligned with the extension of the T-shaped positioning block 4. Then press down on the top of the T-shaped positioning block 4 so that its downward extension is accurately inserted into the positioning hole 21 of the left connector 2. At this time, the T-shaped positioning block 4 is in place. The limiting groove 411 of the positioning block 4 and the insert 43 on the fixing ring 44 are at the same horizontal height. Due to their compatible diameters, the insert 43 can be inserted into the limiting groove 411 without obstruction. The fixing ring 44 is slid along the right-side connecting pipe 3 so that the insert 43 is fully inserted into the limiting groove 411. Since the length of the insert 43 is equal to the length of the inner cavity of the limiting groove 411, the two form a tight axial constraint, preventing the T-shaped positioning block 4 from accidentally dislodging from the positioning hole 21. The auxiliary screw sleeve 5 is rotated to move along the threaded structure 31 towards the fixing ring 44. When the rubber layer of the auxiliary screw sleeve 5 contacts the end face of the fixing ring 44, it is tightened until the rubber layer undergoes elastic deformation, forming a sealing and buffering effect, ensuring that the fixing ring 44 is tightly fitted with the end of the right-side connecting pipe 3, completing the entire self-locking anti-disengagement process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking anti-detachment structure for a quick-connect coupling, comprising a coupling pipe body (1), wherein the coupling pipe body (1) is composed of a left-side connector (2) and a right-side connector (3), and an anti-detachment component is provided on both the left-side connector (2) and the right-side connector (3), characterized in that: The left pipe (2) has a positioning hole (21) at its connecting end, and the right pipe (3) has a cavity at its connecting edge. A T-shaped positioning block (4) is provided above the cavity. The left and right ends of the T-shaped positioning block (4) are installed in the cavity of the right pipe (3) by springs (42). The T-shaped positioning block (4) has a limiting groove (411) and an insert (43) is provided to match the limiting groove (411). The insert (43) is fitted onto the right pipe (3) with a fixing ring (44). The right pipe (3) has a threaded structure (31) and an auxiliary screw sleeve (5) is provided at the threaded structure (31). The connecting end of the left pipe (2) is inserted into the cavity of the right pipe (3), the downward extension of the T-shaped positioning block (4) is inserted into the positioning hole (21) of the left pipe (2), the insert (43) at the end of the fixing ring (44) is inserted into the limiting groove (411) of the T-shaped positioning block (4), and the auxiliary screw sleeve (5) is screwed to make the fixing ring (44) tightly abut against the end of the right pipe (3).

2. The self-locking anti-disengagement structure of a quick coupling according to claim 1, characterized in that: Anti-detachment components are respectively provided at the upper and lower ends of the left pipe (2) and the right pipe (3).

3. The self-locking anti-disengagement structure of a quick coupling according to claim 1, characterized in that: The diameter of the limiting groove (411) of the T-shaped positioning block (4) is compatible with the diameter of the insert (43) integrally connected to the fixing ring (44).

4. The self-locking anti-disengagement structure of a quick coupling according to claim 3, characterized in that: The length of the insert (43) integrally connected to the fixing ring (44) is equal to the inner cavity length of the limiting groove (411) of the T-shaped positioning block (4).

5. The self-locking anti-extraction structure of a quick coupling according to claim 2, characterized in that: The positioning hole (21) at the connecting end of the left-side pipe (2) is adapted to the diameter of the downward extension end of the T-shaped positioning block (4).

6. The self-locking anti-disengagement structure of a quick coupling according to claim 1, characterized in that: The abutting surface of the auxiliary screw sleeve (5) is provided with a rubber layer, which can be tightly abutted against the end face of the fixing ring (44).

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