Quick-mount self-locking anti-loose ferrule joint

Abstract

This utility model relates to the field of compression fitting technology and discloses a quick-installing self-locking anti-loosening compression fitting, which solves the problems of loosening and sealing failure of existing fittings. It includes a compression fitting body connected between pipe one and pipe two. The compression fitting body consists of a central support sleeve, an external threaded connecting pipe one, a self-locking bushing one, a connecting sleeve one, an external threaded connecting pipe two, a self-locking bushing two, and a connecting sleeve two. External threaded connecting pipe one and external threaded connecting pipe two are respectively fixedly connected to both ends of the central support sleeve. Self-locking bushing one and connecting sleeve one are both fitted onto one end of pipe one and connected to external threaded connecting pipe one. Self-locking bushing two and connecting sleeve two are both fitted onto one end of pipe two and connected to external threaded connecting pipe two. This compression fitting improves the stability of the connection and prevents loosening and detachment.

Description

Technical Field

[0001] This utility model belongs to the field of compression fitting technology, specifically a quick-installation self-locking anti-loosening compression fitting. Background Technology

[0002] In the field of industrial pipeline connection, although traditional compression fittings can achieve sealing by cutting into the steel pipe with the ferrule edge, problems such as nut loosening and seal failure are prone to occur under conditions of frequent vibration or pressure fluctuation. Therefore, this application proposes a quick-install self-locking anti-loosening compression fitting, which can generate radial clamping force on the pipeline, causing the pipeline to undergo slight deformation, thereby forming a clamping force with the fitting, preventing the connection from loosening and improving the connection stability. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a quick-install self-locking anti-loosening ferrule connector, which effectively solves the problems of loosening and sealing failure of existing connectors.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-install self-locking anti-loosening ferrule connector, comprising a ferrule connector body, wherein the ferrule connector body is connected between pipe one and pipe two, the ferrule connector body is composed of a central support sleeve, an external threaded connecting pipe one, a self-locking bushing one, a connecting sleeve one, an external threaded connecting pipe two, a self-locking bushing two, and a connecting sleeve two, wherein the external threaded connecting pipe one and the external threaded connecting pipe two are respectively fixedly connected to the two ends of the central support sleeve, the self-locking bushing one and the connecting sleeve one are both sleeved on one end of pipe one and connected to the external threaded connecting pipe one, and the self-locking bushing two and the connecting sleeve two are both sleeved on one end of pipe two and connected to the external threaded connecting pipe two;

[0005] Both self-locking bushing one and self-locking bushing two are composed of a pressure-bearing support ring, a pressure-applying support ring, and a corrugated deformation extrusion body. The pressure-bearing support ring and the pressure-applying support ring are respectively fixedly connected to both ends of the corrugated deformation extrusion body.

[0006] Both connecting sleeve 1 and connecting sleeve 2 have a threaded inner groove at one end that matches the external threaded connecting pipe 1 and external threaded connecting pipe 2. Both connecting sleeve 1 and connecting sleeve 2 have a positioning center groove at the middle position that matches the self-locking bushing 1 and self-locking bushing 2. Both connecting sleeve 1 and connecting sleeve 2 have a through groove at the other end that matches the pipe 1 and pipe 2.

[0007] Preferably, both the first and second threaded connecting pipes have annular inner grooves at their ends away from the central support sleeve, and an O-ring seal is provided inside the annular inner grooves. One end of the first and second pipes is inserted into the inside of the annular inner grooves.

[0008] Preferably, the outer side of one end of the pressure support ring is provided with a transition inclined edge one, and a transition inclined edge two matching the transition inclined edge one is formed between the positioning center groove and the through groove.

[0009] Preferably, the inner diameter of the threaded inner groove is larger than the inner diameter of the positioning center groove, the inner diameter of the positioning center groove is the same as the outer diameter of the self-locking bushing one and the self-locking bushing two, and the inner diameter of the positioning center groove is larger than the inner diameter of the through groove.

[0010] Preferably, the outer surfaces of the central support sleeve, connecting sleeve one, and connecting sleeve two are all hexagonal structures.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) In operation, by setting up a compression fitting body consisting of a central support sleeve, an external threaded connecting pipe one, a self-locking bushing one, a connecting sleeve one, an external threaded connecting pipe two, a self-locking bushing two, and a connecting sleeve two, it is possible to apply radial clamping force to the pipeline after connection, so that the pipeline undergoes radial deformation, and the pipeline and the fitting form a clamping structure, thereby improving the stability of the connection.

[0013] (2) By setting an annular inner groove and an O-ring, the stability and sealing of the connection between the joint and the pipeline can be further improved, and fluid leakage can be avoided. By setting the outer surfaces of the central support sleeve, the first connecting sleeve and the second connecting sleeve to be hexagonal, it is easy to clamp with a wrench during installation and disassembly. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the quick-installation self-locking anti-loosening ferrule connector structure of this utility model;

[0017] Figure 2 This is an exploded view of the quick-installation self-locking anti-loosening ferrule connector of this utility model;

[0018] Figure 3 This is one of the schematic diagrams of the connection structure between the compression fitting body and the pipe of this utility model;

[0019] Figure 4 This is the second schematic diagram of the connection structure between the ferrule connector body and the second pipe of this utility model;

[0020] Figure 5 This is a two-section view of the self-locking bushing of this utility model;

[0021] Figure 6 This is a two-section view of the connecting sleeve of this utility model;

[0022] In the diagram: 1. Compression fitting body; 2. Pipe 1; 3. Pipe 2; 4. Center support sleeve; 5. External threaded connecting pipe 1; 6. Self-locking bushing 1; 7. Connecting sleeve 1; 8. External threaded connecting pipe 2; 9. Self-locking bushing 2; 10. Connecting sleeve 2; 11. Pressure-bearing support ring; 12. Pressure-applying support ring; 13. Corrugated deformation extrusion body; 14. Threaded inner groove; 15. Positioning center groove; 16. Through groove; 17. Annular inner groove; 18. O-ring seal; 19. Transition bevel 1; 20. Transition bevel 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Depend on Figures 1 to 6 The present invention discloses a quick-installing self-locking anti-loosening ferrule connector, comprising a ferrule connector body 1, which is connected between pipe 2 and pipe 3. The ferrule connector body 1 is composed of a central support sleeve 4, an external threaded connecting pipe 5, a self-locking bushing 6, a connecting sleeve 7, an external threaded connecting pipe 8, a self-locking bushing 9, and a connecting sleeve 10. The external threaded connecting pipe 5 and the external threaded connecting pipe 8 are respectively fixedly connected to the two ends of the central support sleeve 4. The self-locking bushing 6 and the connecting sleeve 7 are both sleeved on one end of pipe 2 and connected to the external threaded connecting pipe 5. The self-locking bushing 9 and the connecting sleeve 10 are both sleeved on one end of pipe 3 and connected to the external threaded connecting pipe 8.

[0025] During connection, self-locking bushing 6 and connecting sleeve 7 are pre-fitted onto pipe 2, and self-locking bushing 9 and connecting sleeve 10 are pre-fitted onto pipe 3. Pipes 2 and 3 are then inserted into threaded connecting pipes 5 and 8 respectively. Connecting sleeve 7 to threaded connecting pipe 5 and connecting sleeve 10 to threaded connecting pipe 8 are then connected. During connection, a certain pressure is applied using a wrench. Self-locking bushings 6 and 9 will undergo axial expansion and contraction deformation, as well as radial deformation. Due to their self-locking... The outer surfaces of bushing 6 and self-locking bushing 9 are limited by connecting sleeve 7 and connecting sleeve 10, which causes radial deformation towards the central axis, resulting in deformation of pipe 2 and pipe 3. This achieves deformation-type self-locking limitation. Even if connecting sleeve 7 and connecting sleeve 10 loosen later, self-locking bushing 6 and self-locking bushing 9 can still limit the connection of pipe 2 and pipe 3, improving connection stability. Self-locking bushing 6 and self-locking bushing 9 are disposable consumables and need to be replaced after each disassembly.

[0026] Both self-locking bushing 6 and self-locking bushing 9 are composed of a pressure-bearing support ring 11, a pressure-applying support ring 12 and a corrugated deformable extrusion body 13. The pressure-bearing support ring 11 and the pressure-applying support ring 12 are respectively fixedly connected to the two ends of the corrugated deformable extrusion body 13.

[0027] The pressure-bearing support ring 11 and the pressure-applying support ring 12 support the corrugated deformable extrusion body 13. The corrugated deformable extrusion body 13 deforms under pressure, achieving deformation-type self-locking limit.

[0028] Both the first connecting sleeve 7 and the second connecting sleeve 10 have a threaded inner groove 14 that matches the external threaded connecting pipe 5 and the external threaded connecting pipe 8 at one end. Both the first connecting sleeve 7 and the second connecting sleeve 10 have a positioning center groove 15 that matches the self-locking bushing 6 and the self-locking bushing 9 at the middle position. Both the first connecting sleeve 7 and the second connecting sleeve 10 have a through groove 16 that matches the pipe 2 and the pipe 3 at the other end.

[0029] The inner groove 14 can be connected to the external threaded connecting pipe 5 and the external threaded connecting pipe 8, the positioning center groove 15 can limit the self-locking bushing 6 and the self-locking bushing 9, and the through groove 16 can be fitted onto the pipe 2 and the pipe 3.

[0030] Both the external threaded connecting pipe 1 5 and the external threaded connecting pipe 2 8 have annular inner grooves 17 at the ends away from the central support sleeve 4. An O-ring seal 18 is provided inside the annular inner groove 17. One end of pipe 1 2 and pipe 2 3 are inserted into the annular inner groove 17, which can prevent the pipe openings of pipe 1 2 and pipe 2 3 from deforming. The O-ring seal 18 can improve the sealing of the connection.

[0031] The outer side of one end of the pressure support ring 12 is provided with a transition inclined edge 19, and a transition inclined edge 20 matching the transition inclined edge 19 is formed between the positioning center groove 15 and the through groove 16, which can realize the extrusion force and increase the force-bearing area.

[0032] The inner diameter of the threaded inner groove 14 is larger than the inner diameter of the positioning center groove 15. The inner diameter of the positioning center groove 15 is the same as the outer diameter of the self-locking bushing 6 and the self-locking bushing 9. The inner diameter of the positioning center groove 15 is larger than the inner diameter of the through groove 16. The outer surfaces of the center support sleeve 4, the connecting sleeve 7 and the connecting sleeve 10 are all hexagonal structures, which can be easily installed and disassembled with a wrench.

[0033] In operation, the compression fitting body, consisting of a central support sleeve, an external threaded connecting pipe I, a self-locking bushing I, a connecting sleeve I, an external threaded connecting pipe II, a self-locking bushing II, and a connecting sleeve II, can apply radial clamping force to the pipeline after connection, causing radial deformation of the pipeline and forming a clamping structure between the pipeline and the fitting, thus improving the stability of the connection. By setting an annular inner groove and an O-ring seal, the stability and sealing of the connection between the fitting and the pipeline can be further improved, preventing fluid leakage. The hexagonal structure of the outer surfaces of the central support sleeve, connecting sleeve I, and connecting sleeve II facilitates clamping with a wrench during installation and disassembly.

Claims

1. A quick-release self-locking anti-loosening ferrule connector, comprising a ferrule connector body (1), characterized in that: The ferrule body (1) is connected between pipe one (2) and pipe two (3). The ferrule body (1) is composed of a central support sleeve (4), an external threaded connecting pipe one (5), a self-locking bushing one (6), a connecting sleeve one (7), an external threaded connecting pipe two (8), a self-locking bushing two (9) and a connecting sleeve two (10). The external threaded connecting pipe one (5) and the external threaded connecting pipe two (8) are respectively fixedly connected to the two ends of the central support sleeve (4). The self-locking bushing one (6) and the connecting sleeve one (7) are both sleeved on one end of pipe one (2) and connected to the external threaded connecting pipe one (5). The self-locking bushing two (9) and the connecting sleeve two (10) are both sleeved on one end of pipe two (3) and connected to the external threaded connecting pipe two (8). Both self-locking bushing one (6) and self-locking bushing two (9) are composed of a pressure-bearing support ring (11), a pressure-applying support ring (12) and a corrugated deformable extrusion body (13). The pressure-bearing support ring (11) and the pressure-applying support ring (12) are respectively fixedly connected to the two ends of the corrugated deformable extrusion body (13). One end of each of the connecting sleeves 1 (7) and 2 (10) is provided with a threaded inner groove (14) that matches the external threaded connecting pipe 1 (5) and external threaded connecting pipe 2 (8). The middle position inside each of the connecting sleeves 1 (7) and 2 (10) is provided with a positioning center groove (15) that matches the self-locking bushing 1 (6) and self-locking bushing 2 (9). The other end of each of the connecting sleeves 1 (7) and 2 (10) is provided with a through groove (16) that matches the pipe 1 (2) and pipe 2 (3).

2. The quick-connect self-locking anti-loosening ferrule connector according to claim 1, characterized in that: Both the external threaded connecting pipe one (5) and the external threaded connecting pipe two (8) have an annular inner groove (17) at the end away from the central support sleeve (4). An O-ring (18) is provided inside the annular inner groove (17). One end of pipe one (2) and pipe two (3) are inserted into the inside of the annular inner groove (17).

3. The quick-connect self-locking anti-loosening ferrule connector according to claim 1, characterized in that: The outer side of one end of the pressure support ring (12) is provided with a transition inclined edge one (19), and a transition inclined edge two (20) matching the transition inclined edge one (19) is formed between the positioning center groove (15) and the through groove (16).

4. The quick-connect self-locking anti-loosening ferrule connector according to claim 1, characterized in that: The inner diameter of the threaded inner groove (14) is larger than the inner diameter of the positioning center groove (15). The inner diameter of the positioning center groove (15) is the same as the outer diameter of the self-locking bushing one (6) and the self-locking bushing two (9). The inner diameter of the positioning center groove (15) is larger than the inner diameter of the through groove (16).

5. A quick-connect self-locking anti-loosening ferrule connector according to claim 1, characterized in that: The outer surfaces of the central support sleeve (4), connecting sleeve one (7) and connecting sleeve two (10) are all hexagonal structures.

Images