High-pressure-resistant all-plastic movable joint
By setting a protective layer on the sealing ring of the movable joint and placing it between the male and female ports, the problem of water leakage of the movable joint under high water pressure is solved, and a stable sealing effect is achieved.
Patent Information
- Application Number
- CN202421411843.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Existing joints are prone to water leakage under high water pressure, because the O-type sealing ring will deform under the action of water pressure and cannot completely seal the gap between the male and female ports.
A high-pressure-resistant all-plastic joint is adopted. By setting a protective layer on the sealing ring and placing the protective layer between the male and female ports, the protective layer seals the gap between the male and female ports to prevent water. Pressure deforms the sealing ring and leaks water.
It effectively prevents deformation and water leakage of the sealing ring under water pressure, and ensures a stable sealing effect between the male and female ports.
Smart Images
Figure CN222479810U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of joints, and in particular to a high-pressure-resistant all-plastic flexible joint. Background Art
[0002] A union is a commonly used pipe connector, mainly used to facilitate installation and disassembly. A pipe union is used to connect two pipe joints with the same nominal diameter. A union usually consists of a male port, a female port and a sleeve nut. The union has the characteristics of flexible operation and easy installation and disassembly.
[0003] In the related technology, the joint includes a male port, a female port and a sleeve nut. The male port and the female port abut against each other, and the sleeve nut is threadedly connected to the male port so that the male port and the female port are fixed to each other. A ring groove is opened on the male port, and an O-ring is arranged in the ring groove.
[0004] The male port is connected to a pipe by hot-melt connection, the female port is connected to another pipe by hot-melt connection, the male port and the female port are threadedly connected to each other, and the O-type sealing ring is located in the ring groove, so that the O-type sealing ring can seal the male port and the female port.
[0005] When the water pressure in the pipe is very high, the water will squeeze the gap between the male and female ports and squeeze the O-ring. The water will impact the O-ring, causing the O-ring to deform toward the gap between the male and female ports, making the O-ring unable to completely seal the gap between the male and female ports, allowing water to rush through the gap between the male and female ports, causing water leakage between the male and female ports. Utility Model Content
[0006] In order to improve the situation where water leakage occurs between the male port and the female port when the water pressure is high, the present application provides a high-pressure-resistant all-plastic flexible joint.
[0007] The present application provides a high-pressure-resistant all-plastic flexible joint, which adopts the following technical solution:
[0008] A high-pressure-resistant all-plastic flexible joint comprises a male port, a female port and a sleeve nut, wherein the sleeve nut is threadedly connected to the male port, a sealing ring is arranged on the male port, a ring groove for inserting the sealing ring is opened on the male port, a protective layer is arranged on the sealing ring, and the protective layer is located between the male port and the female port.
[0009] By adopting the above technical solution, the protective layer is located between the male port and the female port, and the protective layer is arranged on the sealing ring. The protective layer blocks the gap between the male port and the female port, making it difficult for water pressure to impact the sealing ring into the gap between the male port and the female port, so that the sealing ring can be stably located in the annular groove, so that the sealing ring can maintain the sealing effect; because the protective layer abuts the male port and the female port, and the protective layer is arranged on the sealing ring, the protective layer is fixed due to the fixation of the sealing ring, and the protective layer can limit the deformation of the sealing ring toward the gap between the male port and the female port, so that it is difficult for water to impact the sealing ring toward the gap between the male port and the female port, thereby making it difficult for water to leak between the male port and the female port.
[0010] Optionally, a sealing ring is provided on the surface of the protective layer away from the sealing ring, and when the sealing ring abuts against the female port, the sealing ring is deformed.
[0011] By adopting the above technical solution, the sealing ring is arranged on the surface of the protective layer away from the sealing ring. When the sealing ring abuts against the female port, the sealing ring is deformed. When the female port is deformed due to external temperature or water pressure and other conditions, the gap between the female port and the sealing ring increases, so that the sealing ring can also be deformed along with the female port, allowing the sealing ring to continue to abut against the female port, thereby allowing the female port to deform in a small range without affecting the sealing performance of the joint.
[0012] Optionally, the male port is provided with an external thread, and the external thread is inclined between a direction away from the male port in which the annular groove is provided and a direction away from the male port axis.
[0013] By adopting the above technical solution, when the water pressure is too high, the water will drive the male port to move in a small range, causing the threaded connection between the male port and the nut to loosen. By inclining the external thread, the threaded connection between the male port and the nut is made tighter, making it difficult for the male port and the nut to separate.
[0014] Optionally, a receiving groove is provided on the surface of the male port where the annular groove is provided.
[0015] By adopting the above technical solution, when the male port is produced, an accommodating groove is opened on the surface of the male port through which the ring groove is opened, and the male port can be deformed into the accommodating groove, so that the size of the male port will not be deformed too much during the production process, ensuring that the inner diameter and outer diameter of the male port will not change too much.
[0016] Optionally, a plurality of the accommodating grooves are provided, and the plurality of the accommodating grooves are distributed in a circumferential array along the annular groove.
[0017] By adopting the above technical solution, a plurality of accommodating grooves are distributed in a circumferential array along the annular groove, so that the male port is not prone to local deformation during the production process, and the yield rate of the male port is further improved.
[0018] Optionally, a support bar is provided on the surface of the female port, and a limit block is provided on the support bar. When the sealing ring abuts against the female port, the outer circumferential surface of the protective layer abuts against the limit block.
[0019] By adopting the above technical solution, when the male port abuts against the female port, the sealing ring is located between the male port and the female port, and the sealing ring abuts against the support bar and the limit block. At this time, the limit block can limit the outer circumferential surface of the protective layer to prevent the protective layer from deforming outward, thereby further strengthening the restriction on the protective layer.
[0020] Optionally, a limiting groove for inserting a limiting block is provided on the male port, and when the limiting block is inserted into the limiting groove, the protective layer is unlikely to be deformed.
[0021] By adopting the above technical solution, the limit block is inserted into the limit groove, so that the groove wall of the limit groove limits the limit block, and the male port further strengthens the restriction on the limit block, allowing the limit block to maintain the restriction on the protective layer, thereby further reducing the possibility of deformation of the protective layer.
[0022] Optionally, the limit block has an inclined surface between the direction away from the support bar and the direction toward the axis of the female opening, and an elastic block is provided on the groove wall of the limit groove. When the limit block is inserted into the limit groove, the elastic block abuts the inclined surface.
[0023] By adopting the above technical solution, the limit block is inserted into the limit groove. Since the elastic block abuts the inclined surface and the inclined surface is inclined, the elastic block drives the limit block to deform toward one side of the protective layer, further increasing the restriction on the protective layer and preventing the protective layer from deforming toward the outside of the gap between the male port and the female port.
[0024] Optionally, the support bar is provided with a placement groove for inserting the protective layer.
[0025] By adopting the above technical solution, when the protective layer is deformed, the protective layer can be inserted into the placement groove, so that the protective layer has a certain deformation space, so that the protective layer will not be deformed toward the outside of the female port, further strengthening the protective effect of the protective layer on the gap between the female port and the male port.
[0026] In summary, the present application includes at least one of the following beneficial technical effects:
[0027] 1. The protective layer is located between the male port and the female port, and the protective layer is arranged on the sealing ring. The protective layer blocks the gap between the male port and the female port, making it difficult for the water pressure to impact the sealing ring into the gap between the male port and the female port, so that the sealing ring can be stably located in the ring groove, so that the sealing ring can maintain the sealing effect; because the protective layer abuts the male port and the female port, and the protective layer is arranged on the sealing ring, the protective layer is fixed due to the fixation of the sealing ring, making it difficult for water to pass through the gap between the male port and the female port, thereby making it difficult for water to leak between the male port and the female port.
[0028] 2. The sealing ring is arranged on the surface of the protective layer away from the sealing ring. When the sealing ring abuts against the female port, the sealing ring is deformed. When the female port is deformed due to external temperature or water pressure and other conditions, the gap between the female port and the sealing ring increases, so that the sealing ring can also be deformed along with the female port, allowing the sealing ring to continue to abut against the female port, thereby allowing the female port to deform in a small range without affecting the sealing performance of the joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 is a schematic structural diagram of Example 1;
[0030] Figure 2 is an explosion diagram in Example 1;
[0031] Figure 3 is a cross-sectional view showing the protective layer in Example 1;
[0032] Figure 4 is an exploded schematic diagram of Example 2;
[0033] Figure 5 It is a structural schematic diagram of the highlight placement groove in Example 2.
[0034] Figure numerals: 1, male port; 11, accommodating groove; 12, external thread; 13, ring groove; 14, sealing ring; 141, protective layer; 142, sealing ring; 15, limiting groove; 151, elastic block; 2, female port; 21, fixing ring; 22, supporting bar; 221, limiting block; 222, placement groove; 3, sleeve nut; 31, internal thread; 32, limiting ring; 33, shrinkage groove. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-5 This application is described in further detail.
[0036] Example 1
[0037] This embodiment discloses a high-pressure-resistant all-plastic flexible joint. Figure 1A high-pressure plastic flexible joint includes a male port 1, a female port 2 and a sleeve nut 3. The male port 1 can be hot-melt connected to a pipe, and the female port 2 can be hot-melt connected to another pipe. The male port 1, the female port 2 and the sleeve nut 3 are all made of PPR material.
[0038] Reference Figure 1 and Figure 2 A plurality of accommodating grooves 11 are provided on the surface of the male port 1, and the plurality of accommodating grooves 11 are distributed in an array along the circumference of the male port 1. A plurality of contraction grooves 33 are provided on the surface of the female sleeve 3, and the plurality of contraction grooves 33 are distributed in an array along the circumference of the female sleeve 3.
[0039] Reference Figure 2 and Figure 3 The male port 1 is provided with an external thread 12 formed integrally on its outer circumferential surface, and the female sleeve 3 is provided with an internal thread 31 formed integrally on its inner surface, and the external thread 12 and the internal thread 31 are threadedly connected to each other. The external thread 12 is inclined between the direction in which the receiving groove 11 is provided in the male port 1 and the direction away from the axis of the male port 1.
[0040] Reference Figure 3 A fixing ring 21 is integrally formed on the surface of the female port 2, and the fixing ring 21 can extend into the sleeve nut 3. A limiting ring 32 for limiting the separation of the fixing ring 21 is integrally formed on the inner wall of the sleeve nut 3. When the sleeve nut 3 is threadedly connected to the male port 1, and the female port 2 is located in the sleeve nut 3, the fixing ring 21 is located on the side of the limiting ring 32 away from the male port 1, and the fixing ring 21 abuts against the male port 1.
[0041] Reference Figure 2 and Figure 3 , a ring groove 13 is formed on the surface of the male port 1 where the receiving groove 11 is formed, and the ring groove 13 extends along the circumference of the male port 1. A sealing ring 14 for inserting into the ring groove 13 is formed on the male port 1, and a protective layer 141 is integrally formed on the surface of the sealing ring 14. The protective layer 141 is flat and annular, and the sealing ring 14 is O-shaped. A plurality of sealing rings 142 are integrally formed on the surface of the protective layer 141 away from the sealing ring 14, and the sealing rings 142 are distributed in a radial array along the protective layer 141. When the sealing ring 14 is inserted into the ring groove 13, the protective layer 141 is located in the gap between the male port 1 and the female port 2.
[0042] The implementation principle of Example 1 is: when water impacts the sealing ring 14, the protective layer 141 is located in the gap between the male port 1 and the female port 2, making it difficult for the sealing ring 14 to drive the protective layer 141 to deform, allowing the protective layer 141 to protect the sealing ring 14, thereby enhancing the sealing effect between the male port 1 and the female port 2.
[0043] Example 2
[0044] Reference Figure 4The difference between this embodiment and the first embodiment is that a plurality of support bars 22 are fixedly connected to the surface of the fixing ring 21, and the plurality of support bars 22 are distributed in a circumferential array along the fixing ring 21, and the support bars 22 extend in the radial direction of the fixing ring 21. A limit block 221 is integrally formed on the surface of the support bar 22, and the limit block 221 and the support bar 22 are made of elastic material. The limit block 221 is inclined in the direction toward the axis of the fixing ring 21 and in the direction away from the axis of the female port 2.
[0045] Reference Figure 4 The surface of the male port 1 on which the annular groove 13 is provided is provided with a limiting groove 15 for inserting the limiting block 221, and the limiting block 221 extends along the circumference of the male port 1. A plurality of elastic blocks 151 are fixedly connected to the groove wall of the limiting groove 15, and the plurality of elastic blocks 151 are distributed in an array along the circumference of the limiting groove 15, and the elastic blocks 151 are located on the side of the limiting groove 15 away from the inner wall of the male port 1.
[0046] Reference Figure 4 and Figure 5 When the limit block 221 is inserted into the limit groove 15, the elastic block 151 abuts against the limit block 221, allowing the limit block 221 to deform toward the inside of the male port 1. At this time, the limit block 221 drives the protective layer 141 to contract, preventing the protective layer 141 from deforming toward the outside of the male port 1.
[0047] Reference Figure 4 and Figure 5 A placement groove 222 for inserting the protective layer 141 is provided on the surface of the support bar 22. When the protective layer 141 is deformed, the protective layer 141 can be inserted into the placement groove 222 to prevent the protective layer 141 from deforming toward the outside of the female port 2.
[0048] The implementation principle of Example 2 is: by abutting the inclined surface through the elastic block 151, the limit block 221 drives the protective layer 141 to move toward the inner side of the male port 1, so that the protective layer 141 is difficult to deform toward the outer side of the male port 1, so that the protective layer 141 can be stably located between the male port 1 and the female port 2, making it difficult for water to flow out from between the male port 1 and the female port 2.
[0049] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0050] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.
Claims
1. A high-pressure-resistant all-plastic flexible joint, comprising a male port (1), a female port (2) and a sleeve nut (3), wherein the sleeve nut (3) is threadedly connected to the male port (1), a sealing ring (14) is provided on the male port (1), and an annular groove (13) for inserting the sealing ring (14) is provided on the male port (1), characterized in that: The sealing ring (14) is provided with a protective layer (141), and the protective layer (141) is located between the male port (1) and the female port (2).
2. A high pressure-resistant all-plastic flexible joint according to claim 1, characterized in that: A sealing ring (142) is provided on the surface of the protective layer (141) away from the sealing ring (14); when the sealing ring (142) abuts against the female port (2), the sealing ring (142) is deformed.
3. The high pressure-resistant all-plastic flexible joint according to claim 1, characterized in that: The male port (1) is provided with an external thread (12), and the external thread (12) is inclined between a direction away from the male port (1) in which the annular groove (13) is provided and a direction away from the axis of the male port (1).
4. The high pressure-resistant all-plastic flexible joint according to claim 1, characterized in that: The male port (1) has an accommodating groove (11) on its surface where the annular groove (13) is formed.
5. The high pressure-resistant all-plastic flexible joint according to claim 4, characterized in that: A plurality of the accommodating grooves (11) are provided, and the plurality of the accommodating grooves (11) are distributed in a circumferential array along the annular groove (13).
6. The high pressure-resistant all-plastic flexible joint according to claim 1, characterized in that: A support strip (22) is provided on the surface of the female port (2), and a limit block (221) is provided on the support strip (22); when the sealing ring (14) abuts against the female port (2), the outer surface of the protective layer (141) abuts against the limit block (221).
7. A high pressure-resistant all-plastic flexible joint according to claim 6, characterized in that: The male port (1) is provided with a limiting groove (15) for inserting a limiting block (221). When the limiting block (221) is inserted into the limiting groove (15), the protective layer (141) is unlikely to be deformed.
8. The high pressure-resistant all-plastic flexible joint according to claim 7, characterized in that: The limit block (221) has an inclined surface between a direction away from the support bar (22) and a direction toward the axis of the female port (2); an elastic block (151) is provided on the groove wall of the limit groove (15); when the limit block (221) is inserted into the limit groove (15), the elastic block (151) abuts against the inclined surface.
9. The high pressure-resistant all-plastic flexible joint according to claim 6, characterized in that: The support bar (22) is provided with a placement groove (222) for inserting the protective layer (141).