Plastic pipe joint with built-in anti-disengagement structure

Abstract

The utility model relates to the technical field of plastic pipe connector discloses a plastic pipe connector of embedded type anti -drop structure, including base pipe, the sidewall of base pipe is provided with quick detach assembly, quick detach assembly inside is provided with connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe connector technology, and in particular to a plastic pipe connector with an embedded anti-detachment structure. Background Technology

[0002] In the field of pipeline connection technology, plastic pipe connectors are widely used, from building water supply and drainage to industrial fluid transportation. Their connection stability and sealing performance directly affect the safety of system operation. As various industries continue to increase their performance requirements for pipeline systems, developing connectors that combine efficient installation with reliable anti-detachment functions has become crucial to meeting the needs of complex working conditions.

[0003] Currently, common plastic pipe connection technologies mainly include threaded connections and clamp connections. Threaded connections rely on the helical engagement between pipe fittings for fixation, and sealing is ensured by wrapping sealing tape or applying sealant. Clamp connections use metal clamps to tighten the two pipe sections against a rubber sealing ring, relying on the clamp's tightening force to form a seal. These traditional structures, based on mature technical principles, achieve basic pipe connection functions in conventional scenarios.

[0004] However, traditional connection methods have revealed shortcomings in practical applications. Threaded connections are cumbersome to install, requiring multiple rotations and tightening, which consumes a lot of manpower and time. Furthermore, long-term vibration can easily cause the threads to loosen, leading to detachment and leakage at the connection point. Although clamp connections are relatively easy to install, the clamp's tightening force is limited. When facing high pressure or frequent pressure fluctuations, the anti-detachment effect is poor, and the sealing performance is difficult to maintain and remain stable over time. These methods cannot meet the stringent requirements for connection efficiency and sealing performance. Therefore, a plastic pipe connector with an embedded anti-detachment structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a plastic pipe connector with an embedded anti-detachment structure, which aims to improve the problem of cumbersome installation and easy detachment of water pipes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A plastic tube connector with an embedded anti-detachment structure includes a base tube, a quick-release assembly is provided on the side wall of the base tube, and a connecting tube is provided inside the quick-release assembly. The quick-release assembly is used to quickly connect the base tube and the connecting tube.

[0008] The quick-release assembly includes a second connecting tube, the sidewall of which is fixedly connected to the sidewall of the base tube. Multiple limiting balls are slidably connected inside the second connecting tube, and the limiting balls are distributed in a circumferential shape. A sliding sleeve is slidably connected to the outer wall of the second connecting tube, and a limiting ring is fixedly connected to the inner wall of the sliding sleeve. The sidewall of the limiting ring is slidably connected to the outer wall of the second connecting tube. A reset assembly is sleeved on the outer wall of the second connecting tube, and a sealing assembly is provided inside the second connecting tube.

[0009] As a further description of the above technical solution:

[0010] The reset assembly includes a reset spring, one end of which is fixedly connected to the side wall of the base tube, and the other end of which is fixedly connected to the outer wall of the limiting ring.

[0011] As a further description of the above technical solution:

[0012] The sealing assembly includes a retaining ring, the outer wall of which is fixedly connected to the inner wall of the base pipe and the second connecting pipe, and the retaining ring is located at the connection between the base pipe and the second connecting pipe.

[0013] As a further description of the above technical solution:

[0014] A sealing ring is provided on the side of the fixing ring, and the side wall of the sealing ring is fixedly connected to the inside of the fixing ring. The sealing ring is circular.

[0015] As a further description of the above technical solution:

[0016] The outer wall of one end of the connecting pipe is slidably connected to the inner wall of the connecting pipe, and a limiting groove is formed on the outer wall. The outer wall of the limiting ball is slidably connected to the inner wall of the limiting groove.

[0017] As a further description of the above technical solution:

[0018] The connecting pipe has a receiving groove on one end sidewall, and the cross-section of the receiving groove is the same as the cross-section of the sealing ring.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the sliding sleeve is provided with multiple anti-slip grooves, which are arranged in a ring array and have a semi-circular cross-section to increase the grip friction.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, the operator moves the sliding sleeve to one side to release the limiting ball and compress the return spring. Then, the first connecting pipe is inserted into the second connecting pipe, so that the sealing ring is embedded in the receiving groove for sealing. After the sliding sleeve is released, the return spring pushes the limiting ring to make the limiting ball lock into the limiting groove, thus achieving the effect of quickly connecting water pipes. This solves the problem of cumbersome installation and easy detachment of traditional water pipe connections, and improves connection efficiency and sealing performance. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a plastic tube connector with an embedded anti-detachment structure proposed in this utility model;

[0024] Figure 2 This is an exploded view of the base pipe structure of a plastic pipe connector with an embedded anti-detachment structure proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the limiting groove structure of a plastic tube connector with an embedded anti-detachment structure proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the limiting ball structure of a plastic tube connector with an embedded anti-detachment structure proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the fixing ring structure of a plastic tube connector with an embedded anti-detachment structure proposed in this utility model.

[0028] Legend:

[0029] 1. Base pipe; 2. Connecting pipe one; 3. Sliding sleeve; 4. Limiting ring; 5. Return spring; 6. Connecting pipe two; 7. Limiting ball; 8. Limiting groove; 9. Receiving groove; 10. Fixing ring; 11. Sealing ring; 12. Anti-slip groove. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-5This utility model provides an embodiment of a plastic pipe connector with an embedded anti-detachment structure, including a base pipe 1. The base pipe 1 is a basic connecting component. The base pipe 1 is made of rigid polyvinyl chloride and manufactured by extrusion molding process, conforming to GB / T10002.1-2006 standard. The nominal outer diameter is determined according to actual usage requirements. The wall thickness is uniform, and it has good chemical stability and corrosion resistance. It is used to connect with other pipeline systems and is the main supporting structure of the entire connector. The quick-release component set on the side wall of the base pipe 1 is a mechanism to achieve quick connection. The quick-release component is equipped with a connecting pipe 2, which is also made of PVC-U material, the same material as the base pipe 1, to ensure chemical compatibility. Its pipe diameter is adapted to the base pipe 1 and is used to extend the pipeline or connect other equipment.

[0032] The quick-release assembly uses connecting tube 2 (6) as the connecting carrier. Connecting tube 2 (6) is made of the same PVC-U material as base tube 1 and is integrally formed with the side wall of base tube 1 through injection molding to ensure connection strength. The interior of connecting tube 2 (6) is precision machined to form multiple circumferentially distributed guide grooves for installing limit balls 7. The limit balls 7 are made of bearing steel, ground and polished, with a diameter of 8mm, and have good wear resistance and impact resistance. They can slide flexibly inside connecting tube 2 (6) and are used to cooperate with the limit groove 8 of connecting tube 1 (2) to achieve the anti-detachment function. The outer wall of connecting tube 2 (6) is slidably connected to the sliding sleeve 3. The sliding sleeve 3 is injection molded from ABS engineering plastic. The inner wall of the sliding sleeve 3 is integrally formed with the limit ring 4 through injection molding. The limit ring 4 is made of the same material as the sliding sleeve 3, and its inner diameter forms a clearance fit with the outer wall of connecting tube 2 (6), ensuring that the limit ring 4 can slide smoothly on the outer wall of connecting tube 2 (6). The function of the limiting ring 4 is to limit and lock the connecting pipe 2 by squeezing the limiting ball 7. The reset assembly sleeved on the outer wall of the connecting pipe 6 is composed of a reset spring 5. The reset spring 5 is made of spring steel and its elastic coefficient is stable after heat treatment. One end of the reset spring 5 is embedded in the groove pre-set on the side wall of the base pipe 1 through injection molding, and the other end is welded to the outer wall of the limiting ring 4. It is used to provide reset elasticity for the sliding sleeve 3 and the limiting ring 4 to ensure the structural stability after the connection is completed. The sealing assembly set inside the connecting pipe 6 is the key to ensuring the sealing performance of the connector. The sealing assembly is based on the fixing ring 10. The fixing ring 10 is made of the same PVC-U material as the base pipe 1 and is fixed at the connection between the inner wall of the base pipe 1 and the connecting pipe 6 through injection molding. It plays the role of supporting and positioning the sealing ring 11. The sealing ring 11 is installed on the side of the fixing ring 10. The sealing ring 11 is made of EPDM rubber. Made of adhesive, conforming to HG / T2020 standard, it has good aging resistance, chemical resistance and sealing performance. It is annular in shape, and its cross-sectional shape matches the receiving groove 9 of the connecting pipe 2. It is used to form a seal during connection to prevent liquid or gas leakage. The outer wall of one end of the connecting pipe 2 is milled to form a limiting groove 8. The depth and width of the limiting groove 8 are adapted to the limiting ball 7. It is used to cooperate with the limiting ball 7 to position and fix the connecting pipe 2. The side wall of one end of the connecting pipe 2 is milled to form a receiving groove 9. The cross-sectional shape of the receiving groove 9 is consistent with the sealing ring 11. It is used to embed the sealing ring 11 to ensure the sealing effect. The outer wall of the sliding sleeve 3 is provided with multiple anti-slip grooves 12 arranged in a ring array through injection molding process. The anti-slip grooves 12 have a semi-circular cross-section to increase the friction when the hand is gripping, making it easier for the operator to apply force to operate the sliding sleeve 3 and improving the ease of operation.

[0033] Working principle: When using this plastic pipe connector with an embedded anti-detachment structure, the operator first slides the sliding sleeve 3 to one side. The displacement of the sliding sleeve 3 causes the limiting ring 4 inside it to move synchronously. The displacement of the limiting ring 4 causes its outer wall to no longer press against the limiting ball 7, thus contacting the limiting ball 7 for limiting. At the same time, the return spring 5 is compressed. At this time, the operator inserts one end of the connecting pipe 2 into the interior of the connecting pipe 2 6, so that the sealing ring 11 inside the connecting pipe 2 6 is embedded in the receiving groove 9 at one end of the connecting pipe 2, forming a seal. At this time, the operator releases the sliding sleeve 3. Under the push of the return spring 5, the limiting ring 4 drives the sliding sleeve 3 to return to its original position. At this time, the outer wall of the limiting ring 4 presses against the limiting ball 7 again, so that the limiting ball 7 is stuck in the limiting groove 8 on the outer wall of the connecting pipe 2, thus completing the limiting of the connecting pipe 2, thereby achieving the effect of quickly connecting the water pipe.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic tube connector with an embedded anti-detachment structure, comprising a base tube (1), characterized in that: The base tube (1) is provided with a quick-release assembly on its side wall. The quick-release assembly is provided with a connecting tube (2) inside. The quick-release assembly is used to quickly connect the base tube (1) and the connecting tube (2). The quick-release assembly includes a second connecting tube (6), the side wall of which is fixedly connected to the side wall of the base tube (1). Multiple limiting balls (7) are slidably connected inside the second connecting tube (6), and the limiting balls (7) are distributed in a circumferential shape. A sliding sleeve (3) is slidably connected to the outer wall of the second connecting tube (6). A limiting ring (4) is fixedly connected to the inner wall of the sliding sleeve (3). The side wall of the limiting ring (4) is slidably connected to the outer wall of the second connecting tube (6). A reset assembly is sleeved on the outer wall of the second connecting tube (6). A sealing assembly is provided inside the second connecting tube (6).

2. The plastic tube connector with an embedded anti-detachment structure according to claim 1, characterized in that: The reset assembly includes a reset spring (5), one end of which is fixedly connected to the side wall of the base tube (1), and the other end of which is fixedly connected to the outer wall of the limiting ring (4).

3. The plastic tube connector with an embedded anti-detachment structure according to claim 1, characterized in that: The sealing assembly includes a retaining ring (10), the outer wall of which is fixedly connected to the inner wall of the base pipe (1) and the connecting pipe (6), and the retaining ring (10) is located at the connection between the base pipe (1) and the connecting pipe (6).

4. The plastic tube connector with an embedded anti-detachment structure according to claim 3, characterized in that: A sealing ring (11) is provided on the side of the fixing ring (10). The side wall of the sealing ring (11) is fixedly connected to the inside of the fixing ring (10). The sealing ring (11) is in the shape of a ring.

5. The plastic tube connector with an embedded anti-detachment structure according to claim 1, characterized in that: One end of the outer wall of the connecting pipe (2) is slidably connected to the inner wall of the connecting pipe (6), and a limiting groove (8) is provided on the outer wall. The outer wall of the limiting ball (7) is slidably connected to the inner wall of the limiting groove (8).

6. A plastic tube connector with an embedded anti-detachment structure according to claim 5, characterized in that: The connecting pipe (2) has a receiving groove (9) on one end side wall, and the cross section of the receiving groove (9) is consistent with the cross section of the sealing ring (11).

7. The plastic tube connector with an embedded anti-detachment structure according to claim 1, characterized in that: The outer wall of the sliding sleeve (3) is provided with multiple anti-slip grooves (12), which are arranged in a ring array. The cross-section of the anti-slip grooves (12) is semi-circular, which is used to increase the grip friction of the hand.

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