A quick connector for serrated profile tubing

Abstract

The utility model discloses a sawtooth type special-shaped pipe quick connector belongs to pipeline connection technical field. The connector includes sawtooth special-shaped pipe, shell, protruding dog, trapezoidal protruding, sealing spring, sliding block and sealing pad, the inside of shell is equipped with the accommodation cavity, and trapezoidal protruding is fixed in the accommodation cavity inner wall of shell near the one side of inlet end, and protruding dog is located between trapezoidal protruding and sealing pad, and sliding block is located in sealing pad far from protruding dog one side, and sealing spring is set in the outside of sliding block and both ends respectively with sliding block and shell accommodation cavity bottom abuts, and sealing pad is located between protruding dog and sliding block. The utility model discloses the linkage structure of sawtooth special-shaped pipe insertion, realizes quick connection, and sealing spring resilience ensures that sealing pad closely fits sawtooth special-shaped pipe, and improves the sealing performance, and the cooperation of shell and protruding dog guarantees the stable connection, solves the problem of the prior art connection complicated, poor sealing, and unfirm fixation.

Description

Technical Field

[0001] This utility model belongs to the field of pipe connection technology, and in particular relates to a serrated special-shaped pipe quick connector. Background Technology Background Technology

[0003] In industrial production and testing, it is frequently necessary to connect irregularly shaped tubes. Serrated tubes, due to their unique structure, are particularly challenging to connect compared to ordinary straight tubes. Current commercially available quick-connect technologies for irregularly shaped tubes have several drawbacks: most connecting devices cannot effectively adapt to the serrated structure of serrated tubes, resulting in a cumbersome and time-consuming connection process; some devices, while capable of connection, suffer from poor sealing performance, leading to media leakage, which can severely impact the accuracy of test results, especially in testing applications; and some connecting devices are not securely fixed after connection, easily loosening under external forces or changes in media pressure, compromising connection stability. These shortcomings of existing technologies fail to meet the practical application requirements for quick, sealed, and stable connections of serrated tubes. Therefore, a quick-connect solution for serrated tubes that can address these issues is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a serrated shaped tube quick connector to solve the problems mentioned in the background art. It enables rapid sealing connection of serrated shaped tubes, improving connection efficiency, sealing performance, and connection stability.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] A serrated shaped tube quick connector includes a housing and a locking mechanism, a sealing mechanism and an elastic pre-tightening mechanism disposed inside the housing;

[0007] The outer shell has an internal cavity.

[0008] The locking mechanism includes a trapezoidal protrusion fixedly disposed on the inlet side of the receiving cavity and a protruding claw axially movable within the receiving cavity, the trapezoidal protrusion being disposed on the inner sidewall of the protruding claw;

[0009] The sealing mechanism is located axially rear of the protruding claw;

[0010] The elastic preload mechanism is located axially rear of the sealing mechanism and is used to provide a continuous axial preload force to the sealing mechanism and the locking mechanism.

[0011] Preferably, the sealing mechanism includes a sealing gasket, one side of which abuts against the protruding claw.

[0012] Preferably, the sealing mechanism further includes a sliding block, the other side of the sealing gasket abuts against the sliding block, and the sliding block slides against the inner wall of the housing cavity; the elastic pre-tightening mechanism includes a sealing spring, one end of the sealing spring abuts against the sliding block, and the other end abuts against the bottom of the housing cavity.

[0013] Preferably, the trapezoidal protrusion and protrusion claw are integral structures, the trapezoidal protrusion is axially arranged along the inner wall of the protrusion claw, and the height of the trapezoidal protrusion is consistent with the tooth height of the serrated special-shaped tube.

[0014] Preferably, the protruding claws are made of elastic metal material, number 3-6 and evenly distributed, and their inner walls are provided with teeth that match the serrations on the outer wall of the serrated tube.

[0015] Preferably, the sealing gasket is made of oil-resistant and aging-resistant rubber material, and its cross-section is U-shaped.

[0016] Preferably, the sliding block is made of plastic material, and its outer wall is provided with a guide groove, and the inner wall of the outer shell cavity is provided with a guide strip adapted to the guide groove.

[0017] Preferably, the sealing spring is made of stainless steel.

[0018] Preferably, the outer shell is made of high-strength alloy material, and its internal accommodating cavity has a stepped structure.

[0019] The beneficial effects of this utility model are as follows: Rapid connection: This connector, through a series of linked structures during the insertion of the serrated tube, can quickly complete the connection without complex operations, significantly improving the connection efficiency of the serrated tube and solving the problem of cumbersome connection in existing technologies. Excellent sealing performance: The sealing gasket is compressed during the insertion of the serrated tube, while the rebound force of the sealing spring ensures that the sealing gasket remains tightly fitted to the serrated tube. Combined with the clamping action of the protruding claws, it effectively prevents media leakage, meeting the needs of scenarios with high sealing performance requirements, such as the testing field. Stable and reliable connection: The outer shell pushes the protruding claws to clamp the serrated tube through the trapezoidal protrusions, and the inner side of the outer shell also clamps the protruding claws, forming a double fixation. Even under external force or changes in media pressure, it can ensure the stability of the connection and prevent loosening. Simple and practical structure: The components of this connector have simple structures, are easy to process, manufacture, and assemble, have low cost, and are easy to promote and apply on a large scale. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the connector of this utility model connected to a serrated irregular pipe.

[0021] Figure 2This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of this utility model. 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. 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 scope of protection of the present utility model.

[0024] like Figure 1-3 As shown, a serrated shaped tube quick connector includes a housing 2 and a locking mechanism, a sealing mechanism, and an elastic pre-tightening mechanism disposed inside the housing 2; a receiving cavity is formed inside the housing 2; the locking mechanism includes a trapezoidal protrusion 4 fixedly disposed on the inlet side of the receiving cavity and a protruding claw 3 axially movable within the receiving cavity, the trapezoidal protrusion 4 being disposed on the inner sidewall of the protruding claw 3; the sealing mechanism is disposed axially rearward of the protruding claw 3;

[0025] An elastic pre-tightening mechanism is located axially rear of the sealing mechanism to provide continuous axial pre-tightening force to both the sealing and locking mechanisms. The sealing mechanism includes a sealing gasket 7, one side of which abuts against the protruding claw 3. The sealing mechanism also includes a sliding block 6, the other side of which abuts against the sealing gasket 7, and the sliding block 6 slides within the receiving cavity of the outer casing 2. The elastic pre-tightening mechanism includes a sealing spring 5, one end of which abuts against the sliding block 6, and the other end against the bottom of the receiving cavity of the outer casing 2. The trapezoidal protrusion 4 and the protruding claw 3 are integral structures. The trapezoidal protrusion 21 is axially arranged along the inner wall of the protruding claw 3, and the height of the trapezoidal protrusion 4 is consistent with the tooth height of the serrated tube 1. The protruding claw 3 is made of elastic metal material, numbering 3-6 and evenly distributed, with its inner wall having teeth that match the serrations of the outer wall of the serrated tube 1. When the protruding claw 3 grips the serrated tube 1, the teeth can mesh with the serrations of the serrated tube 1, further improving the fixing effect.

[0026] The sealing gasket 7 is made of oil-resistant and aging-resistant rubber material, and its cross-section is U-shaped. The U-shaped structure increases the compressibility of the sealing gasket 7, improving sealing performance. The sliding block 6 is made of plastic material, and its outer wall has a guide groove. The inner wall of the housing 2's receiving cavity has a guide strip that matches the guide groove. The cooperation between the guide groove and the guide strip ensures that the sliding block 6 does not rotate during movement, guaranteeing that the sealing spring 5 is subjected to uniform force.

[0027] The sliding block 6 is made of plastic material, and its outer wall is provided with a guide groove. The inner wall of the housing 2 receiving cavity is provided with a guide strip that matches the guide groove.

[0028] The sealing spring 5 is made of stainless steel.

[0029] The outer shell 2 is made of high-strength alloy material, and its internal cavity has a stepped structure.

[0030] When the serrated tube 1 is inserted into the inlet end of the housing 2, it first contacts and compresses the sealing gasket 7. Under pressure, the sealing gasket 7 drives the sliding block 6 to move towards the bottom of the housing 2's receiving cavity. During this movement, the sliding block 6 compresses the sealing spring 5, causing it to elastically deform. As the serrated tube 1 continues to be inserted, after a certain distance, the housing 2 pushes the protruding claw 3 towards the serrated tube 1 via the trapezoidal protrusion 4 until the protruding claw 3 grips the outer wall of the serrated tube 1. Simultaneously, under the elastic rebound force, the sealing spring 5 pushes the sliding block 6 in the opposite direction. The sliding block 6 further pushes the sealing gasket 7 to fit tightly against the serrated tube 1. Finally, the inner side of the housing 2 grips the protruding claw 3 via the trapezoidal protrusion 4, thus fixing the quick connector to the serrated tube 1 and maintaining the compression of the sealing gasket 7 to ensure a tight seal.

[0031] In practical use, the operator simply aligns the serrated tube 1 with the inlet end of the outer casing 2 and inserts it. During insertion, the serrated tube 1 compresses the sealing gasket 7, which in turn moves the sliding block 6 and compresses the sealing spring 5. When the serrated tube 1 is inserted to the preset position, the trapezoidal protrusion 4 of the outer casing 2 pushes the protruding claw 3 to grip the serrated tube 1 tightly. At the same time, the sealing spring 5 rebounds, pushing the sliding block 6 and the sealing gasket 7 to fit tightly against the serrated tube 1, completing the connection. The entire connection process takes only 3-5 seconds, is simple and quick to operate, and offers excellent sealing performance and fixation. It can be widely used in testing fields and other scenarios requiring rapid connection of serrated tubes.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A serrated, irregularly shaped tube quick connector, characterized in that, It includes a housing (2) and a locking mechanism, a sealing mechanism and an elastic pre-tightening mechanism disposed inside the housing (2); The outer shell (2) has a receiving cavity inside; The locking mechanism includes a trapezoidal protrusion (4) fixedly disposed on the inlet side of the receiving cavity and a protruding claw (3) axially movable in the receiving cavity, wherein the trapezoidal protrusion (4) is disposed on the inner side wall of the protruding claw (3); The sealing mechanism is located axially rear of the protruding claw (3); The elastic preload mechanism is located axially rear of the sealing mechanism and is used to provide a continuous axial preload force to the sealing mechanism and the locking mechanism.

2. The serrated shaped tube quick connector according to claim 1, characterized in that, The sealing mechanism includes a sealing gasket (7), one side of which abuts against the protruding claw (3).

3. A serrated shaped tube quick connector according to claim 2, characterized in that, The sealing mechanism further includes a sliding block (6), the other side of the sealing gasket (7) abuts against the sliding block (6), and the sliding block (6) slides against the inner wall of the receiving cavity of the outer shell (2); the elastic pre-tightening mechanism includes a sealing spring (5), one end of the sealing spring (5) abuts against the sliding block (6), and the other end abuts against the bottom of the receiving cavity of the outer shell (2).

4. A serrated shaped tube quick connector according to claim 1, characterized in that, The trapezoidal protrusion (4) and the protrusion claw (3) are an integral structure. The trapezoidal protrusion (4) is axially arranged along the inner wall of the protrusion claw (3). The height of the trapezoidal protrusion (4) is consistent with the tooth height of the serrated special tube (1).

5. A serrated shaped tube quick connector according to claim 1, characterized in that, The protruding claws (3) are made of elastic metal material, numbering 3-6 and evenly distributed, with their inner walls having teeth that match the serrations on the outer wall of the serrated tube (1).

6. A serrated shaped tube quick connector according to claim 3, characterized in that, The sealing gasket (7) is made of oil-resistant and aging-resistant rubber material, and its cross-section is U-shaped.

7. A serrated shaped tube quick connector according to claim 3, characterized in that, The sliding block (6) is made of plastic material and has a guide groove on its outer wall. The inner wall of the housing (2) is provided with a guide strip that matches the guide groove.

8. A serrated shaped tube quick connector according to claim 3, characterized in that, The sealing spring (5) is made of stainless steel.

9. A serrated shaped tube quick connector according to claim 1, characterized in that, The outer shell (2) is made of high-strength alloy material, and its internal cavity has a stepped structure.

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