Quick-connection type anti-explosion connector convenient to install

Abstract

The utility model discloses a quick-connection type explosion-proof joint convenient to install. The quick-connection type explosion-proof joint comprises a pipeline joint and a movable joint, the pipeline connector is fixed on a pipeline, the movable connector comprises a middle connector and an outer connector, threaded connectors are arranged on the two sides of the middle connector, and threaded grooves are formed in the pipeline connector and the outer connector; the middle connector is sleeved with sealing rings on the threaded connectors on the two sides, and after the middle connector is connected with the pipeline connector and the outer connector in place, the sealing rings are extruded and deformed in gaps of the connecting positions. The middle connector locks the pipeline joint and the outer joint through the same locking mechanism; according to the explosion-proof joint, the explosion-proof joint for preventing loosening is arranged, so that the explosion-proof joint cannot be loosened and is very stable even when being impacted externally during long-time use, and meanwhile, the stable sealing of the sealing ring is improved; the sealing rings are extruded and deformed between the two corresponding annular tooth grooves, the sealing effect is further achieved, the deformed sealing rings can form multi-circle sealing at the extrusion positions of the annular tooth grooves, and the sealing performance is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of explosion-proof electrical connection accessories, specifically relating to a quick-connect explosion-proof connector that is easy to install. Background Technology

[0002] Cable joints of various explosion-proof equipment require explosion-proof sealed joints to ensure the safe operation of the cables. The joint material must be corrosion-resistant and high-strength, and the connection must be stable and sealed.

[0003] Current connectors are generally threaded connections, with sealing rings added at the connection for sealing. For example, patent document CN219181161U provides an explosion-proof cable sealing connector, which includes a first connecting cylinder and a second connecting cylinder. A first diamond-shaped nut is fixedly connected to the middle of the outer wall of the first connecting cylinder. A first external thread is formed on both sides of the outer wall of the first connecting cylinder located on the first diamond-shaped nut. A first sealing ring is fitted and connected to both sides of the outer wall of the first connecting cylinder located on the first diamond-shaped nut. A second connecting cylinder is provided at one end of the outer wall of the first connecting cylinder. A second inner cavity is formed through the interior of the second connecting cylinder. A limiting groove is formed on the inner wall of the second inner cavity near the end of the first connecting cylinder. A first internal thread is formed on the inner wall of the limiting groove. The second connecting cylinder and the first connecting cylinder are threadedly connected by the first internal thread and the first external thread. A second diamond-shaped nut is fixedly connected to the outer wall of the second connecting cylinder near the end of the first connecting cylinder. A second sealing ring is fitted and connected to the outer wall of the second connecting cylinder on the side of the second diamond-shaped nut away from the first connecting cylinder.

[0004] However, the threaded connection of the explosion-proof connector mentioned above is prone to loosening during long-term use, especially after external impact, leading to unstable connection. At the same time, the sealing ring is also prone to loosening, causing leakage at the seal, which poses a safety hazard. Utility Model Content

[0005] This utility model provides a quick-connect explosion-proof connector that is easy to install. By setting an explosion-proof connector to prevent loosening, it will not loosen even when subjected to external impact during long-term use, and is very stable. At the same time, it improves the stability of the sealing ring, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect explosion-proof connector that is easy to install, comprising a pipeline connector and a movable connector; the pipeline connector is fixed to the pipeline, the movable connector includes an intermediate connector and an outer connector, the intermediate connector has threaded connectors on both sides, and both the pipeline connector and the outer connector have threaded grooves that connect with the threaded connectors; the intermediate connector has sealing rings fitted on both sides of the threaded connectors, and after the intermediate connector is connected to the pipeline connector and the outer connector, the sealing rings are squeezed and deformed in the gap at the connection point; the intermediate connector locks the pipeline connector and the outer connector through the same locking mechanism.

[0007] Preferably, the locking mechanism includes a protrusion on the pipeline connector and the outer connector, the protrusion having grooves on its upper and lower sides, a spring and a positioning post installed in the grooves, and annular cavities on both sides of the intermediate connector for the protrusion to enter, the annular cavities having annular grooves, and the outer wall of the intermediate connector having two through holes that penetrate the annular grooves. After the intermediate connector is connected to the pipeline connector and the outer connector, the positioning post is partially pressed against the annular groove.

[0008] Preferably, the width of the annular groove is greater than the width of the positioning post, and the through hole is a long groove extending along the annular groove.

[0009] Preferably, the outer edge of the protrusion is a polygonal structure, and the outer wall of the intermediate connector is a polygonal structure.

[0010] Preferably, the intermediate connector has multiple ring tooth grooves on both sides surrounding the threaded connector, and the end faces of the pipeline connector and the outer connector have corresponding ring tooth grooves; after the intermediate connector is connected to the pipeline connector and the outer connector, the sealing ring is squeezed and deformed between the two corresponding ring tooth grooves.

[0011] Preferably, the external connector has a pipeline inlet, and the intermediate connector has a receiving interface at the pipeline inlet. A sealing positioning ring is fitted on the receiving interface. The width of the sealing positioning ring is greater than that of the receiving interface, and the diameter of the sealing positioning ring after being squeezed and deformed by the pipeline inlet is smaller than that of the receiving interface and the inner diameter of the pipeline inlet.

[0012] Preferably, the pipeline inlet has a tapering structure from left to right.

[0013] Preferably, the sealing positioning ring protruding from the inner wall of the receiving interface has an annular toothed groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up explosion-proof joints to prevent loosening, the joints will not loosen even when subjected to external impacts during long-term use, ensuring stability and improving the sealing stability of the sealing ring.

[0016] 2. The pipeline inlet extrusion sealing positioning ring compresses and tightens the multiple annular grooves of the sealing positioning ring to fix and position the external cable, while simultaneously providing a stable seal.

[0017] 3. The sealing ring is squeezed and deformed between the two corresponding annular grooves, which further enhances the sealing effect. The deformed sealing ring will form multiple seals at the compression point of the annular groove, resulting in high sealing performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection structure of the pipeline connector, intermediate connector, and external connector of this utility model.

[0020] Figure 3 This is a schematic diagram of the pipeline connector, intermediate connector, and external connector of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the connection structure of the intermediate connector and the outer connector of this utility model;

[0022] Figure 5 This is a cross-sectional view of the sealing positioning ring of this utility model;

[0023] Figure 6 This is a schematic diagram of the sealing positioning ring structure of this utility model.

[0024] In the diagram: 1. Pipeline connector; 2. Pipeline; 3. Intermediate connector; 4. External connector; 5. Threaded connector; 6. Sealing ring; 7. Protrusion; 8. Spring; 9. Positioning pin; 10. Annular groove; 11. Through hole; 12. Annular tooth groove; 13. Pipeline inlet; 14. Socket; 15. Sealing positioning ring; 16. Annular tooth groove. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6This utility model provides a quick-connect explosion-proof connector that is easy to install, including a pipeline connector 1 and a movable connector. The pipeline connector 1 is fixed on the pipeline 2. The movable connector includes an intermediate connector 3 and an external connector 4. The intermediate connector 3 has threaded connectors 5 on both sides. Both the pipeline connector 1 and the external connector 4 have threaded grooves that connect with the threaded connectors 5. The intermediate connector 3 has sealing rings 6 on both sides of the threaded connectors 5. After the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the sealing rings 6 are squeezed and deformed in the gap at the connection. The intermediate connector 3 locks the pipeline connector 1 and the external connector 4 through the same locking mechanism. During connection, the connector end of the external cable is put on the intermediate connector 3 and the external connector 4, and the external cable is connected to the pipeline 2. The intermediate connector 3 is screwed onto the pipeline connector 1. After it is in place, the locking mechanism prevents it from loosening. Then the external connector 4 is screwed onto the threaded connector 5 of the pipeline 2. Similarly, the locking mechanism prevents it from loosening. During this process, after the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the sealing ring 6 is squeezed into the gap at the connection point. Due to the locking mechanism preventing loosening, a stable seal is achieved.

[0027] Specifically, the locking mechanism includes a protrusion 7 located on the pipeline connector 1 and the outer connector 4. The protrusion 7 has grooves on its upper and lower sides, and a spring 8 and a positioning post 9 are installed in the grooves. The intermediate connector 3 has annular cavities on both sides for the protrusion 7 to partially enter. Annular grooves 10 are provided in the annular cavities. The outer wall of the intermediate connector 3 has two through holes 11 that penetrate the annular grooves 10. After the intermediate connector 3 is connected to the pipeline connector 1 and the outer connector 4, the positioning post 9 partially abuts in the annular grooves 10. In this embodiment, the spring 8 and the positioning post 9 are then installed in the upper and lower grooves of the pipeline connector 1. After pressing, the intermediate connector 3 is screwed onto the pipeline connector 1. After it is in place, the positioning post 9 will partially enter the annular grooves 10 under the action of the spring 8 to prevent loosening. Then, the outer connector 4 is screwed onto the threaded connector 5 of the pipeline 2. Similarly, the positioning post 9 enters the annular grooves 10 to prevent loosening. When it needs to be opened, the positioning post 9 can be opened by pressing it with an external component through the through holes 11.

[0028] Specifically, the width of the annular groove 10 is greater than the width of the positioning post 9, and the through hole 11 is a long groove extending along the annular groove 10. In this embodiment, since unavoidable errors may occur when the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the annular groove 10 with a certain width is conducive to the entry of the positioning post 9. At the same time, the through hole 11 is a long groove, so that even after a certain error occurs, the annular groove 10 can still correspond to the positioning post 9 to facilitate the insertion and return of the external component.

[0029] Specifically, the outer edge of the protrusion 7 is a polygonal structure, and the outer wall of the intermediate connector 3 is a polygonal structure; in this embodiment, the polygonal structure facilitates the twisting of the pipeline connector 1, the intermediate connector 3, and the outer connector 4.

[0030] Specifically, the intermediate connector 3 has multiple annular grooves 12 on both sides surrounding the threaded connector 5, and the end faces of the pipeline connector 1 and the external connector 4 have corresponding annular grooves 12. After the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the sealing ring 6 is squeezed and deformed between the two corresponding annular grooves 12. In this embodiment, after the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the sealing ring 6 is squeezed and deformed between the two corresponding annular grooves 12, which further plays a sealing role. The deformed sealing ring 6 will form multiple seals at the compression point of the annular groove 12, resulting in high sealing performance.

[0031] Specifically, the external connector 4 is provided with a pipeline inlet 13, and the intermediate connector 3 is provided with a receiving interface 14 at the pipeline inlet 13. A sealing positioning ring 15 is fitted on the receiving interface 14. The width of the sealing positioning ring 15 is greater than that of the receiving interface 14. The diameter of the sealing positioning ring 15 after being squeezed and deformed by the pipeline inlet 13 is smaller than that of the receiving interface 14 and the inner diameter of the pipeline inlet 13. In this embodiment, the pipeline inlet 13 will squeeze the outer end of the sealing positioning ring 15, so that the sealing positioning ring 15 squeezes and tightens to fix the external cable for positioning and stable sealing.

[0032] Specifically, the pipeline inlet 13 has a tapered opening structure from left to right; in this embodiment, the tapered opening structure of the pipeline inlet 13 facilitates the gradual compression and tightening of the sealing positioning ring 15 to fix and position the external cable.

[0033] Specifically, the sealing positioning ring 15 is exposed on the inner wall of the receiving interface 14 as an annular toothed groove 16; in this embodiment, the design of the annular toothed groove 16 is conducive to the deformation of the sealing positioning ring 15 and the formation of multiple seals after deformation.

[0034] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0035] Working principle: During connection, the connector end of the external cable is fitted with the intermediate connector 3 and the external connector 4, and the external cable is connected to the pipeline 2. Then, the spring 8 and the positioning post 9 are installed in the upper and lower grooves of the pipeline connector 1. After pressing, the intermediate connector 3 is screwed onto the pipeline connector 1. After it is in place, the positioning post 9 will partially enter the annular groove 10 under the action of the spring 8 to prevent loosening. Then, the external connector 4 is screwed onto the threaded connector 5 of the pipeline 2. Similarly, the positioning post 9 enters the annular groove 10 to prevent loosening. During this process, the pipeline inlet 13 will squeeze the outer end of the sealing positioning ring 15, causing the multiple annular grooves 16 of the sealing positioning ring 15 to squeeze and tighten to fix the external cable for positioning and stable sealing. During this process, after the intermediate connector 3 is connected to the pipeline connector 1 and the external connector 4, the sealing ring 6 is squeezed and deformed between the two corresponding annular grooves 12, further playing a sealing role. The deformed sealing ring 6 will form multiple seals at the compression point of the annular groove 12, resulting in high sealing performance.

[0036] 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 quick-connect explosion-proof connector that is easy to install, characterized in that, It includes a pipeline connector (1) and a movable connector; the pipeline connector (1) is fixed on the pipeline (2), the movable connector includes an intermediate connector (3) and an external connector (4), the intermediate connector (3) is provided with threaded connectors (5) on both sides, the pipeline connector (1) and the external connector (4) are both provided with threaded grooves that connect with the threaded connectors (5); the intermediate connector (3) is fitted with sealing rings (6) on both sides of the threaded connectors (5), after the intermediate connector (3) is connected to the pipeline connector (1) and the external connector (4) in place, the sealing rings (6) are squeezed and deformed in the gap at the connection; the intermediate connector (3) locks the pipeline connector (1) and the external connector (4) through the same locking mechanism.

2. The quick-connect explosion-proof connector for easy installation according to claim 1, characterized in that, The locking mechanism includes a protrusion (7) on the pipeline connector (1) and the outer connector (4). The protrusion (7) has grooves on the top and bottom. A spring (8) and a positioning post (9) are installed in the grooves. The intermediate connector (3) has annular cavities on both sides for the protrusion (7) to enter. An annular groove (10) is provided in the annular cavity. The outer wall of the intermediate connector (3) has two through holes (11) that pass through the annular groove (10). After the intermediate connector (3) is connected to the pipeline connector (1) and the outer connector (4), the positioning post (9) partially presses against the annular groove (10).

3. The quick-connect explosion-proof connector for easy installation according to claim 2, characterized in that, The width of the annular groove (10) is greater than the width of the positioning post (9), and the through hole (11) is a long groove extending along the annular groove (10).

4. The quick-connect explosion-proof connector for easy installation according to claim 2, characterized in that, The outer edge of the protrusion (7) is a polygonal structure, and the outer wall of the intermediate connector (3) is a polygonal structure.

5. The quick-connect explosion-proof connector for easy installation according to claim 1, characterized in that, The intermediate connector (3) has multiple ring tooth grooves (12) on both sides around the threaded connector (5), and the end faces of the pipeline connector (1) and the outer connector (4) are provided with corresponding ring tooth grooves (12); after the intermediate connector (3) is connected to the pipeline connector (1) and the outer connector (4), the sealing ring (6) is squeezed and deformed between the two corresponding ring tooth grooves (12).

6. The quick-connect explosion-proof connector for easy installation according to claim 1, characterized in that, The external connector (4) is provided with a pipeline inlet (13), and the intermediate connector (3) is provided with a receiving interface (14) at the pipeline inlet (13). A sealing positioning ring (15) is fitted on the receiving interface (14). The width of the sealing positioning ring (15) is greater than that of the receiving interface (14). The diameter of the sealing positioning ring (15) is less than that of the receiving interface (14) and the inner diameter of the pipeline inlet (13) due to the compression deformation of the pipeline inlet (13).

7. The quick-connect explosion-proof connector for easy installation according to claim 6, characterized in that, The pipeline inlet (13) has a tapering structure from left to right.

8. A quick-connect explosion-proof connector for easy installation according to claim 6, characterized in that, The sealing positioning ring (15) is exposed on the inner wall of the receiving interface (14) as an annular toothed groove (16).

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