Push-in type pipeline joint release structure

Abstract

The utility model discloses a push-in type pipeline joint release structure, which belongs to the field of pipelines, and is characterized in that the push-in type pipeline joint release structure comprises a tubular main body, a ring tooth and a propeller are arranged in the main body, the ring tooth comprises an outer ring with a notch I, and a plurality of tooth parts obliquely protruding towards the axis direction of the outer ring are arranged on the inner wall of the outer ring; the inner peripheral wall of the main body is recessed at the ring teeth to form a limiting ring groove, and when the ring teeth are located in the limiting ring groove, the tooth parts protrude out of the inner peripheral wall of the propeller, and the pipeline clamping device has the advantages that the number of accessories is reduced, the structural stability is improved, and the clamping force on a pipeline is improved.

Description

Technical Field

[0001] This utility model belongs to the field of piping, and more specifically it relates to a push-in pipe joint release structure. Background Technology

[0002] In the foundational structure of modern society, the importance of pipeline systems as core facilities for fluid transport is self-evident. Whether it's the daily water supply for households or the intricate fluid networks within schools, medical institutions, and commercial buildings, pipeline systems bear the responsibility of effectively circulating and efficiently utilizing various fluids, including hot and cold water, air, ethylene glycol, compressed air, inert gases, various chemicals, wastewater treatment, cooling media, and coatings.

[0003] The construction of piping systems relies heavily on a diverse selection of materials, each with its own unique characteristics to suit different fluid properties, pressure requirements, and cost control needs. Copper pipes, with their excellent thermal conductivity and corrosion resistance, hold a place in hot water supply systems.

[0004] Pipeline connection technology, as a crucial element in constructing complex pipeline networks, is paramount in terms of flexibility and reliability. To achieve smooth connections between pipelines in different layouts and directions, various fittings and valves have emerged. Elbows, tees, and other pipeline fittings allow for flexible adjustments to pipeline routes to meet diverse layout requirements; connectors ensure tight connections between pipelines, preventing fluid leakage; and control valves such as ball valves and gate valves regulate flow, ensuring the safe and efficient operation of the system. The combined use of these fittings and valves significantly improves the assembly efficiency and operational reliability of pipeline systems.

[0005] Pipe connection technology has evolved from traditional welding and brazing to modern rapid connection technologies. While traditional welding and brazing methods can achieve strong connections between pipes, the process is cumbersome and presents numerous challenges. Brazing requires rigorous cleaning of the pipe ends, application of flux, and specialized skills and protective equipment; the entire process is time-consuming, labor-intensive, and carries certain safety risks. Furthermore, both welding and brazing only allow for pipe installation, not removal.

[0006] In recent years, quick-connect fitting technology has gradually emerged in the field of pipe connections due to its advantages of simplicity, speed, and low material requirements. This technology eliminates the need for complex welding operations; installation and disassembly can be completed with only simple tools such as pipes, quick-connect fittings, deburring tools, and cutters.

[0007] As shown in the utility patent publication CN106461131B, which discloses a push-in connector release auxiliary component, its core lies in the design of the ring teeth (clamps, gripping rings) and the release pusher. When the pipe is inserted into the connector, the ring teeth can automatically clamp the pipe, forming a reliable seal and connection. When the release pusher is squeezed, it squeezes the toothed ring, causing the toothed ring to release the pipe, thus allowing the pipe to be removed from the pipe connector.

[0008] This connection method not only simplifies the operation process and reduces installation costs, but also improves work efficiency.

[0009] However, early push-fit connection technologies still suffered from problems such as excessive components, single-layer ring teeth, and insufficient clamping force. Specifically, the ring teeth inside the pipe joint required additional sealing ring support components on both sides and pipe support components for support. This resulted in too many parts inside the pipe joint, poor stability, and insufficient clamping force. Therefore, a new solution is needed to address these issues. Utility Model Content

[0010] To address the shortcomings of existing technologies, the purpose of this invention is to provide a push-in pipe joint release structure, which has the advantages of reducing the number of fittings and improving structural stability.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A push-in pipe joint release structure includes a tubular body, within which are provided ring teeth and a pusher.

[0013] The ring tooth includes an outer ring with a notch, and a plurality of teeth protruding from the inner wall of the outer ring in the axial direction of the outer ring.

[0014] The inner peripheral wall of the main body is recessed at the ring tooth to form a limiting ring groove. When the ring tooth is located in the limiting ring groove, the tooth protrudes from the inner peripheral wall of the propeller.

[0015] The present invention is further configured such that: the teeth form a multi-layer structure along the axial direction of the outer ring, and the peripheral sidewall of the pusher is provided with clearance holes for the teeth to pass through.

[0016] The present invention is further configured such that the outer ring is connected to all the teeth via connecting parts.

[0017] This utility model is further configured such that the outer ring, the connecting part, and the toothed part are integrally formed.

[0018] This utility model is further configured such that the connection between the connecting part and the toothed part has an arc-shaped transition or an angled transition.

[0019] This utility is further configured to include a kit and a releaser;

[0020] The kit includes an upper sleeve, a lower sleeve, and a connector connecting the two. The area between the upper sleeve and the lower sleeve is divided by the connector to form at least one notch.

[0021] The release device includes an open release section and a handle section located behind the release section.

[0022] This utility model is further configured such that: the connector is provided in two sets, the two sets of connectors are symmetrically arranged, and the area between the upper sleeve and the lower sleeve is separated by the connector to form two symmetrical gaps.

[0023] The present invention is further configured such that: the release part includes two legs and a waist connecting the two legs, and a guide part is provided at the end of the two legs away from the waist, and the thickness of the guide part gradually increases from the end away from the waist to the other end.

[0024] This utility model is further configured such that the two legs and waist are integrally formed.

[0025] This utility model is further configured such that the upper sleeve, the lower sleeve, and the connecting piece are integrally formed.

[0026] In summary, this utility model has at least the following advantages:

[0027] By setting the ring teeth to have a notch and setting a corresponding limiting ring groove on the main body for the ring teeth to be engaged, the ring teeth can be squeezed to reduce their diameter when they are sent into the pipe joint, thus achieving the installation of the ring teeth. After the ring teeth enter the limiting ring groove, they return to their original size and are locked in the limiting ring groove. This replaces the existing technology that uses additional sealing ring support components and pipe support components on both sides to achieve ring tooth support, reducing the number of accessories, increasing the clamping force on the pipe, and improving structural stability.

[0028] Furthermore, this solution defines the ring tooth as a multi-layered structure, indicating that the peripheral sidewalls of the ring tooth are large-area rather than non-linear ring teeth, thereby increasing the contact area between the ring tooth and the limiting ring groove and ensuring the structural stability of the ring tooth.

[0029] By setting up the kit and release mechanism, the size of the existing release mechanism has been reduced, making it suitable for releasing pipe joints that are against walls or obstructed by objects. Attached Figure Description

[0030] Figure 1 This is an exploded view of a preferred embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional schematic diagram of the pipe joint used in this application.

[0032] Figure 3 This is an exploded view of a preferred embodiment of the thruster, kit, and release device in this utility model;

[0033] Figure 4 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0034] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle;

[0035] Figure 6 This is an exploded view of a preferred embodiment of the ring tooth and sealing component in this utility model;

[0036] Figure 7 This is a schematic diagram of a preferred embodiment of the kit in this utility model.

[0037] Reference numerals: 1. Pipe joint; 11. Main body; 110. Inner wall position; 1101. Outer wall; 111. Step; 112. Limiting ring groove; 113. First clearance channel; 12. Sealing component; 14. Ring tooth; 141. Outer ring; 1410. Inner wall; 1411. First notch; 142. Connecting part; 143. Tooth part; 16. Pusher; 160. Peripheral side wall; 1601. Inner peripheral wall; 161. Protruding part; 162. Clearance hole; 2. Kit; 21. Upper sleeve; 22. Lower sleeve; 23. Connector; 24. Second notch; 3. Releaser; 31. Release part; 311. Leg; 3111. Guide part; 312. Waist part; 32. Handle part; 4. Pipe; 5. Axial direction. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] This utility model discloses a push-in pipe joint release structure, such as Figure 1 and Figure 2 As shown, the pipe fitting 1 includes a tubular body 11, which can be a straight pipe, a tee, or a multi-way pipe. In the embodiment of the multi-way pipe, the kit 2 of this utility model can be pre-assembled at each pipe opening (it can be pre-assembled by equipment during the production process of the pipe fitting, and the pre-assembly effect can be achieved by post-installation), while only one releaser 3 is needed to adapt to all pipe openings.

[0040] like Figure 1 , 3 As shown, at any end of the main body 11, there are ring teeth 14 and a pusher 16 arranged in a ring shape on the inner wall 110 of the main body 11, from the inside out. Wherein, as... Figure 2 , 4As shown in Figure 5, the inner peripheral wall of the main body 11 is recessed at the ring tooth 14 to form a limiting annular groove 112. When the ring tooth 14 is located in the limiting annular groove 112, the tooth portion 143 protrudes from the inner peripheral wall 1601 of the thruster 16. At the same time, the inner peripheral wall of the main body 11 is recessed to form a clearance channel 113 for the movement of the protruding portion 161 of the thruster 16, so that the thruster 16 can move a certain distance along the axial direction of the main body 11, thereby squeezing the ring tooth 14.

[0041] like Figure 5 , 6 As shown, the ring tooth 14 includes an outer ring 141 with a notch 1411. The outer diameter of the outer ring 141 is equal to or slightly larger than the bottom diameter of the limiting ring groove 112, so that when the outer ring 141 is in the limiting ring groove 112, the notch 1411 is squeezed and has an outward expanding force, thereby locking the outer ring 141 in the limiting ring groove 112. At the same time, after the notch 1411 is reduced by force, its diameter will be smaller than the inner diameter of the opening of the main body 11, so that the toothed ring can be normally installed in the main body 11. Because of the notch 1411, the inner diameter of the tube of the main body 11 can vary to a certain extent. The ring tooth 14 of this solution can be adapted to different inner diameters of the tube of the main body 11.

[0042] like Figure 5 , 6 As shown, the inner wall 1410 of the outer ring 141 protrudes a plurality of teeth 143 in the axial direction 5 of the outer ring 141. The teeth 143 of the ring teeth 14 are inclined away from the pusher 16, and the inner diameter of the ring teeth 14 (referring to the measured teeth rather than the ring) is slightly smaller than the inner diameter of the pusher 16, so that the ring teeth 14 can be pushed open after the pipe 4 is inserted into the pusher 16 and the pipe 4 can be restricted from being pulled out after insertion. In order to ensure the clamping effect and installation stability of the toothed ring, in some embodiments, the teeth 143 form a multi-layer structure along the axial direction of the outer ring 141. The design of the multi-layer toothed ring 143 structure can further clamp the pipe 4 on the one hand, and increase the peripheral sidewall area of ​​the outer ring 141 on the other hand, thereby increasing the contact area between the outer ring 141 and the limiting ring groove 112, and improving the installation stability of the ring teeth 14. In order to ensure that the pusher 16 can quickly push open all the teeth 143, the peripheral sidewall of the pusher 16 is provided with clearance holes 162 for the teeth 143 to pass through (e.g. Figure 3 , 5 As shown), some or all of the teeth 143 can protrude through the relief hole 162 to the inner side of the inner peripheral wall of the pusher 16 and be quickly pushed open by the pusher 16.

[0043] like Figure 5 , 6As shown, in order to ensure the deformability of the teeth 143, in some embodiments, the outer ring 141 is connected to all the teeth 143 by connecting portions 142. The connection between the connecting portion 142 and the teeth 143 is arc-shaped or has a chamfer, thereby forming an angled transition. The outer ring 141 is integrally formed with the connecting portion 142 and the teeth 143. Since there is a gap between adjacent connecting portions 142, after the teeth 143 are compressed, the connecting portion 142 is more easily deformed relative to the outer ring 141 as a whole, thereby ensuring the deformability of the teeth 143.

[0044] like Figure 5 , 6 As shown, one method of releasing the pipe 4 in this utility model is to push the pusher 16 towards the ring tooth 14, causing the ring tooth 14 to deform away from the pusher 16, thereby releasing the pipe 4 and removing it. It is worth mentioning that the main body 11 that this utility model's release structure can be adapted to is not limited to the internal components of the main body 11 mentioned above. It can be adapted to any main body 11 with a pusher 16 and a ring tooth 14. Therefore, whether or not there is a sealing member 12, whether the sealing member 12 can be set as one or more, and whether multiple sealing members 12 can be stacked or separated, and whether or not there is a sealing ring support member or a pipe support member as in the prior art, does not affect the implementation of this utility model.

[0045] In some embodiments, such as Figure 3 , 4 As shown, the push-in pipe fitting release structure includes a kit 2 and a release device 3. The material of the kit 2 is not limited; it can be metal, plastic, or other materials with a certain degree of hardness. The kit 2 includes an upper sleeve 21, a lower sleeve 22, and a connector 23 connecting the two. The upper sleeve 21, lower sleeve 22, and connector 23 are preferably integrally formed. In this application, the upper sleeve 21 is annular, and the lower sleeve 22 is preferably annular (e.g., ...). Figure 3 As shown), the area between the upper sleeve 21 and the lower sleeve 22 is divided by the connector 23 to form at least one notch 24. Preferably, there are two sets of connectors 23, which are symmetrically arranged. The inner wall of the connector 23 is preferably arc-shaped. The area between the upper sleeve 21 and the lower sleeve 22 is divided by the connector 23 to form two symmetrical notches 24. The notches 24 are used for the insertion of the front end of the releaser 3.

[0046] like Figure 3 , 5As shown, kit 2 needs to be pre-fitted onto the outer peripheral wall 1101 of the main body 11. At this time, the upper sleeve 21 and the lower sleeve 22 are located outside the end of the main body 11 and outside the outer peripheral wall 1101 of the main body 11, respectively. It is worth mentioning that the push-in type pipe joint release structure of this utility requires that the outer peripheral wall 1101 of either end of the main body 11 of the pipe joint 1 protrude to form a step 111. The upper sleeve 21 and the lower sleeve 22 are located on both sides of the protruding step 111, so that the lower sleeve 22 is limited by the step 111 and will not fall off the pipe joint 1.

[0047] To achieve the pre-assembly effect of the above-mentioned kit 1, in some embodiments, the structure of the lower sleeve 12 can also be a toothed structure (such as...). Figure 7 As shown), the locking teeth have at least two, and setting them as a locking tooth structure can also be limited by the step 311 at the step 311, thereby preventing the kit 1 from falling off the pipe joint 3.

[0048] In addition, such as Figure 3 , 5 As shown, the inner diameter of the upper sleeve 21 can be equal to the inner diameter of the pusher 16. In a preferred embodiment, the inner diameter of the upper sleeve 21 is preferably between the inner and outer diameters of the pusher 16. After the sleeve 2 is pressed down, it can abut against the end wall of the pusher 16, thereby squeezing the pusher 16, realizing the deformation of the ring tooth 14 and the release of the pipe 4. It is worth mentioning that this squeezing method is a manual squeezing release method. The manual squeezing release method is only one way to release the pipe 4. Another way can be achieved by inserting the release device 3.

[0049] In some embodiments, such as Figure 3 , 5 As shown, the release device 3 includes an open-ended release section 31 (located at the front end) and a handle section 32 located behind the release section 31. The release section 31 includes two legs 311 and a waist section 312 connecting the two legs 311. The two legs 311 and the waist section 312 are preferably integrally formed. A guide section 3111 is provided at the end of the two legs 311 away from the waist section 312. The thickness of the guide section 3111 gradually increases from the end away from the waist section 312 to the other end. It is worth mentioning that in some embodiments, the thickness of the legs 311 can also vary, thus forming a gradual transition shape with the guide section 3111, in which case there is no clear boundary between the legs 311 and the guide section 3111.

[0050] like Figure 3 , 5As shown, when it is necessary to release the pipe 4 clamped in the pipe joint 1, simply insert the release device 3 into the gap between the upper sleeve 21 and the pusher 16 (the gap is formed by the second notch 24). It is worth noting that the gap (formed by the second notch 24) should be smaller than the thickness of the leg 311 (when the pusher 16 is not squeezed by the release device 3) so that the pusher 16 can be squeezed when the release device 3 is inserted, thereby causing the ring tooth 14 to loosen the pipe 4 and easily remove the pipe 4 from the pipe joint 1.

[0051] Finally, as Figure 3 , 5 As shown, the kit 2 provided by this utility model, when the connector 23 is long, can not only move axially on the pipe joint 1, but also rotate on the pipe joint 1, so as to rotate the notch 24 to an angle and height that facilitates the insertion of the release device 3, thereby overcoming the problem of the pipe joint 1 being difficult to operate when it is installed in a corner or blocked by objects.

[0052] The working process and beneficial effects of this utility model are as follows: After the ring tooth 14 is compressed, the notch 1411 is reduced, so that it can be inserted into the main body 11. It expands outward at the limiting ring groove 112 and is stuck in the main body 11, thereby replacing the existing technology that uses additional sealing ring support components and pipeline support components on both sides to support the ring tooth 14, reducing accessories and improving structural stability.

[0053] After the pipe joint 1 is assembled, the kit 2 will be fitted onto the outer peripheral wall 1101 of the main body 11. At this time, the upper sleeve 21 and the lower sleeve 22 are located on both sides of the protruding step 111, and the upper sleeve 21 and the lower sleeve 22 are located outside the end of the main body 11 and outside the outer peripheral wall 1101 of the main body 11, respectively.

[0054] When pipe 4 is inserted into the connecting fitting, the ring tooth 14 can automatically clamp pipe 4. When it is necessary to release pipe 4 clamped in pipe joint 1, pipe 4 can be released directly by manually pressing kit 2, or the release device 3 can be inserted between upper sleeve 21 and pusher 16 at the end of pipe joint 1 (i.e., the gap formed by notch 24), so that pusher 16 squeezes the ring tooth 14 inside pipe joint 1, thereby causing the teeth 143 of ring tooth 14 to loosen pipe 4, and then pipe 4 can be easily removed from pipe joint 1.

[0055] The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this utility model should be included within the protection scope of this utility model.

Claims

1. A push-in type pipe joint release structure, comprising a tubular body (11), wherein the body (11) is provided with ring teeth (14) and a pusher (16), characterized in that: The ring tooth (14) includes an outer ring (141) with a notch (1411) and a plurality of teeth (143) protruding from the inner wall (1410) of the outer ring (141) in the axial direction (5) of the outer ring (141). The inner wall position (110) of the main body (11) is recessed at the ring tooth (14) to form a limiting ring groove (112). When the ring tooth (14) is located in the limiting ring groove (112), the tooth (143) protrudes from the inner peripheral wall (1601) of the pusher (16).

2. The push-in pipe joint release structure according to claim 1, characterized in that: The tooth (143) forms a multi-layer structure along the axial direction of the outer ring (141), and the peripheral sidewall (160) of the pusher (16) is provided with a clearance hole (162) for the tooth (143) to pass through.

3. The push-in pipe joint release structure according to claim 2, characterized in that: The outer ring (141) is connected to all the teeth (143) via connecting parts (142).

4. The push-in pipe joint release structure according to claim 3, characterized in that: The outer ring (141) is integrally formed with the connecting part (142) and the toothed part (143).

5. The push-in pipe joint release structure according to claim 3, characterized in that: The connection between the connecting part (142) and the toothed part (143) is either arc-shaped or angled.

6. The push-in pipe joint release structure according to claim 1, characterized in that: It also includes kit (2) and releaser (3); The kit (2) includes an upper sleeve (21), a lower sleeve (22) and a connector (23) connecting the two, wherein the area between the upper sleeve (21) and the lower sleeve (22) is separated by the connector (23) to form at least one notch (24). The release device (3) includes an open-shaped release part (31) and a handle part (32) located behind the release part (31).

7. The push-in pipe joint release structure according to claim 6, characterized in that: The connector (23) is provided in two sets, and the two sets of connectors (23) are symmetrically arranged. The area between the upper sleeve (21) and the lower sleeve (22) is separated by the connector (23) to form two symmetrical gaps (24).

8. The push-in pipe joint release structure according to claim 6, characterized in that: The release part (31) includes two legs (311) and a waist part (312) connecting the two legs (311). A guide part (3111) is provided at one end of the two legs (311) away from the waist part (312). The thickness of the guide part (3111) gradually increases from one end away from the waist part (312) to the other end.

9. The push-in pipe joint release structure according to claim 8, characterized in that: The two legs (311) and waist (312) are integrally formed.

10. The push-in pipe joint release structure according to claim 9, characterized in that: The upper sleeve (21), the lower sleeve (22), and the connector (23) are integrally formed.

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