Anti-siphon water pipe joint

Abstract

The utility model belongs to pipe joint technical field especially relates to a kind of anti-siphon water pipe joint, comprising: pipe body, the inside of the opening of both ends of pipe body is provided with wedge groove;Water outlet connector, water outlet connector is set to one end of pipe body, and the end wall surface of water outlet connector and pipe body is provided with the first matching groove and wedge groove and is in harmony;Protective connector, protective connector is set to the other end of pipe body, and the end wall surface of protective connector and pipe body is provided with the second matching groove and wedge groove and is in harmony, and protective connector is provided with overflow passage in, and the inside of overflow passage is provided with step structure;Anti-siphon assembly, anti-siphon assembly includes connecting plug and spherical plug, connecting plug is set to overflow passage and cooperates with step structure, connecting plug is connected with protective connector after spherical plug is fixed in overflow passage, and flow channel is set on connecting plug.

Description

Technical Field

[0001] This utility model belongs to the field of pipe fitting technology, and in particular relates to an anti-siphon water pipe joint. Background Technology

[0002] Pipe fittings are components used to connect water pipes. Types of fittings include elbows, tees, and male / female threaded fittings, each suitable for changing the direction of water pipes, connecting pipes in different directions, or connecting pipes of different diameters. Based on material, they can be divided into three categories: metal pipes, plastic-coated metal pipes, and plastic pipes. The quality of pipe fittings directly affects the leak-proof performance of the water system.

[0003] Existing water pipe joints are prone to creating negative pressure in the main pipe when the main water supply is interrupted, which can cause impurities and sewage to be siphoned back into the main pipe and pollute the water source. This has a great impact on users' water use and can easily lead to water waste. Therefore, we have specially designed an anti-siphon ten-piece joint. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing an anti-siphon water pipe connector that achieves the effect of blocking backflow.

[0005] In view of this, the present invention provides an anti-siphon water pipe connector, comprising: The tube body has wedge-shaped grooves on the inner sides of the openings at both ends; The water outlet connector is located at one end of the pipe body. The wall surface of the end where the water outlet connector connects to the pipe body is provided with a first mating groove that fits into a wedge groove. The protective joint is located at the other end of the pipe body. The protective joint has a second mating groove on the wall of the end where it connects to the pipe body, which fits into the wedge groove. The protective joint has a flow channel inside, and the inner side of the flow channel has a stepped structure. An anti-siphon assembly includes a connecting block and a spherical block. The connecting block is disposed in the flow channel and cooperates with the stepped structure. After the connecting block is connected to the protective connector, the spherical block is limited and fixed in the flow channel. The connecting block is provided with a flow channel. Among them, the inner flow channel of the protective connector that mates with the pipe body is tapered, and an abutment frame is provided on the tapered end of the flow channel.

[0006] Furthermore, the above technical solution also includes: The return spring is located on the outside of the contact frame and on the end face of the junction of the flow channel. The return spring presses the spherical plug against the connecting plug and seals the flow channel.

[0007] Furthermore, in the above technical solution, the port at the inner end of the flow channel can be flat-bottomed.

[0008] In the above technical solution, the abutting frame can be configured as multiple upright structures directly abutting the spherical block, or it can be configured as having gasket structures at the upper ends of multiple upright structures abutting the spherical block.

[0009] In the above technical solution, the connecting block further includes: The rubber ring is located on the outside of the stepped structure. The sealing ring is located on the outside of the rubber ring. The limiting frame has multiple protruding structures on its outer peripheral surface. The limiting frame cooperates with the flow channel and limits and fixes the rubber ring and the sealing ring in the flow channel. Among them, a limiting groove and a protruding structure are provided on the inner wall of the flow channel, and the diameter of the flow channel outside the limiting groove is larger than that at the end of the limiting groove and the flow channel.

[0010] Furthermore, the above technical solution also includes: Plastic-coated parts are made of heat-shrinkable material and are assembled to both ends of the pipe body after the protective joint, water outlet joint and pipe body are connected.

[0011] Furthermore, the above technical solution also includes: The connecting joint is limited and connected to the protective joint.

[0012] Furthermore, the above technical solution also includes: A sealing ring is provided on the connecting joint and abuts against the protective joint.

[0013] The beneficial effects of this utility model are as follows: Anti-siphon components effectively prevent siphoning and ensure the stability of fluid flow and unobstructed channels, improving work efficiency and making them suitable for applications requiring controlled fluid flow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the water outlet connector of this utility model; Figure 3 This is a schematic diagram of the protective structure and connecting joint assembly of this utility model; Figure 4 This is a schematic diagram of the flat-bottom structure of the protective connector of this utility model; Figure 5 This is a schematic diagram of the protective connector support structure of this utility model; Figure 6 This is a schematic diagram of the protective joint support frame structure and gasket structure of this utility model; Figure 7 This is a schematic diagram of the assembly of the protective connector and anti-siphon component of this utility model; The markings in the diagram represent: 1. Pipe body; 11. Wedge groove; 2. Water outlet connector; 21. First mating groove; 3. Protective connector; 31. Second mating groove; 32. Flow channel; 321. Limiting groove; 33. Step structure; 34. Abutment frame; 341. Upright frame structure; 342. Washer structure; 41. Connecting plug; 411. Rubber ring; 412. Closing ring; 413. Limiting frame; 4131. Protruding structure; 42. Spherical plug; 5. Return spring; 6. Plastic-coated part; 7. Connecting connector; 71. Sealing ring. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] Example 1: This embodiment provides an anti-siphon water pipe connector, including: The tube body 1 has wedge-shaped grooves 11 on the inner sides of the openings at both ends; Water outlet connector 2 is located at one end of pipe body 1. The end wall of the water outlet connector 2 connected to pipe body 1 is provided with a first mating groove 21 that fits into the wedge groove 11. The protective connector 3 is located at the other end of the pipe body 1. The protective connector 3 is provided with a second mating groove 31 on the wall of the end connected to the pipe body 1, which fits into the wedge groove 11. The protective connector 3 is provided with a flow channel 32, and the inner side of the flow channel 32 is provided with a stepped structure 33. The anti-siphon assembly includes a connecting block 41 and a spherical block 42. The connecting block 41 is disposed in the flow channel 32 and cooperates with the stepped structure 33. After the connecting block 41 is connected to the protective connector 3, the spherical block 42 is limited and fixed in the flow channel 32. A flow channel is provided on the connecting block 41. Among them, the inner flow passage 32 of the protective connector 3 that cooperates with the pipe body 1 is in a constricted shape, and the constricted end of the flow passage 32 is provided with an abutment frame 34.

[0017] As can be seen from this embodiment, a siphon device includes a pipe body 1, a water outlet connector 2, a protective connector 3, and an anti-siphon component; The wedge-shaped grooves 11 provided in the openings at both ends of the pipe body 1 fit into the first mating groove 21 on the water outlet connector 2 and the second mating groove 31 on the protective connector 3, which can achieve a tight connection and help improve the sealing performance. Furthermore, the fitting design of the first mating groove 21, the second mating groove 31 and the wedge-shaped groove 11 enables the various components of the device to be firmly connected, increasing the overall durability.

[0018] The protective joint 3 has a flow channel 32 formed inside it, and the diameter of the flow channel 32 inside the section of the protective joint 3 connected to the inner side of the pipe body 1 is smaller than the diameter of the flow channel 32 outside the section of the pipe body 1 (the stepped structure 33 is formed on the section of the flow channel 32 with a larger diameter on the outer side of the constriction), thus forming a constriction structure. An anti-siphon component is provided on the flow channel 32 outside the constriction. The anti-siphon component includes a connecting block 41 and a spherical block 42. The connecting block 41 is installed on the stepped structure 33, and the spherical block 42 is limited and fixed on the flow channel 32 between the connecting block 41 and the constriction of the flow channel 32. Furthermore, an abutment frame 34 is provided on the joint end face at the closing end of the flow channel 32. The abutment frame 34 extends to the outside of the closing end and can abut against the spherical block 42 during use, thereby preventing the spherical block 42 from sealing the closing end of the flow channel 32 and thus avoiding affecting the normal flow of fluid. Furthermore, when the siphon phenomenon occurs, the spherical block 42 can block the flow section of the flow channel 32 connected to the block 41, thereby preventing water backflow and avoiding negative pressure, effectively eliminating the effects of water backflow and unstable flow.

[0019] Anti-siphon components effectively prevent siphoning and ensure the stability of fluid flow and unobstructed channels, improving work efficiency and making them suitable for applications requiring controlled fluid flow.

[0020] Example 2: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0021] The reset spring 5 is located on the outside of the contact frame 34 and on the end face of the junction of the flow channel 32. The reset spring 5 abuts the ball-shaped block 42 against the connecting block 41 and seals the flow channel.

[0022] As can be seen from this embodiment, by setting a reset spring 5 on the joint end face at the closing of the flow channel 32 on the outside of the contact frame 34, the composite spring can control the spherical plug 42 to be sealed on the connecting plug for a long time during use. Only when the fluid pressure on the outside of the protective plug is greater than the elastic force of the composite spring will it be opened by the impact of water flow to allow fluid to flow, thereby completely eliminating the occurrence of siphon phenomenon.

[0023] Example 3: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0024] The port at the inner end of the flow channel 32 can be flat.

[0025] As can be seen from this embodiment, by setting the port at the closing end to a flat bottom and using only the return spring 5 to resist fluid impact, the flow channel is opened, which helps to simplify the structure of the protective connector 3. It is a specialized structure that needs to be set and applied as required.

[0026] Example 4: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0027] The abutting frame 34 can be configured to have multiple upright frames 341 directly abutting against the spherical block 42, or it can be configured to have a washer structure 342 at the upper end of the multiple upright frames 341 abutting against the spherical block 42.

[0028] As can be seen from this embodiment, the anti-blocking frame 34 includes two structural forms, namely the upright frame structure 341 and the upright frame structure 341 with a washer structure 342. The first type of support frame structure 341 has a simple structure and can assist the reset spring 5 in supporting the spherical block 42. The second type of support structure 341 has a contact frame 34 with a washer structure 342 formed on the upper end. During the process of the auxiliary return spring 5 supporting the spherical block 42, it can also protect the spherical block 42 and prevent mechanical wear from occurring when the spherical block 42 and the contact frame 34 come into contact under pressure.

[0029] Example 5: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0030] The connecting block 41 includes: Rubber ring 411 is provided on the outside of the stepped structure 33; A sealing ring 412 is provided on the outside of the rubber ring 411; The limiting frame 413 has multiple protruding structures 4131 on its outer peripheral surface. The limiting frame 413 cooperates with the flow channel 32 and limits and fixes the rubber ring 411 and the sealing ring 412 in the flow channel 32. Among them, a limiting groove 321 is provided on the inner wall of the flow channel 32 to cooperate with the protrusion structure 4131, and the diameter of the flow channel 32 outside the limiting groove 321 is larger than the opening of the limiting groove 321 and the flow channel 32.

[0031] As can be seen from this embodiment, the connecting block 41 includes a rubber ring 411, a closing ring 412 and a limiting frame 413. The flow channel 32 is formed on a section outside the stepped structure 33 with a limiting groove 321. The central holes of the rubber ring 411, the closing ring 412 and the limiting frame 413 overlap to form a flow channel. The rubber ring 411 is snapped onto the outside of the stepped structure 33, and the closing ring 412 abuts against the outside of the rubber ring 411. The outer peripheral surface of the limiting frame 413 is provided with a protruding structure 4131. After the protruding structure 4131 and the limiting groove 321 are matched, the limiting frame 413 is fixed to the outside of the flow channel 32, and the closing ring 412 and the rubber ring 411 are tightly abutted against the stepped structure 33.

[0032] Because the protruding structure 4131 of the limiting frame 413 is fixed in conjunction with the limiting groove 321, the connecting block 41 can withstand greater pressure, preventing the block from shifting or loosening due to excessive water pressure during operation. This allows the spherical block 42 to be securely assembled in the flow channel 32. The design of the flow channel 32 outside the limiting groove 321 having a larger diameter than the limiting groove 321 can prevent the block from being forced out or detached due to pressure changes, ensuring the pressure resistance of the device.

[0033] Example 6: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] Plastic-coated component 6 is made of heat-shrinkable material and is assembled to both ends of pipe body 1 after the protective connector 3, water outlet connector 2 and pipe body 1 are connected.

[0035] As can be seen in this embodiment, plastic-coated parts 6 are provided on the connection parts between the two ends of the pipe body 1 and the water outlet connector 2 and the protective connector 3; The plastic-coated part 6 is made of thermoplastic material. During the heating and shrinking process, it can tightly wrap the joint part, so that the first mating groove 21 on the water outlet joint 2 and the second mating groove 31 on the protective joint 3 can be precisely matched with the wedge groove 11, thereby ensuring the sealing of the pipe joint and reducing the risk of water leakage.

[0036] Plastic-coated parts 6 can enhance the mechanical strength of pipe joints, reduce damage to pipe joints from external impacts or tension, reduce damage or aging problems caused by mechanical stress, and are easy to install.

[0037] Example 7: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Connector 7 is limited and connected to the protective connector 3.

[0039] As can be seen from this embodiment, by setting a connecting joint 7 on the protective joint 3, it is convenient to connect the protective joint 3 to the external pipe fittings. At the same time, the protective joint 3 with different anti-coupling frame 34 structures or flat bottoms can be replaced as needed. It is easy to disassemble and maintain, which helps to improve its performance and applicability.

[0040] Example 8: This embodiment provides an anti-siphon water pipe connector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] A sealing ring 71 is provided on the connecting joint 7 and abuts against the protective joint 3.

[0042] As can be seen from this embodiment, by providing a sealing ring 71 on the connecting joint 7 that abuts against the port of the protective joint 3, the sealing ring 71 can be tightly abutted and fixed between the port of the external pipe and the protective joint 3 after the connecting joint 7 is connected to the external pipe, thereby achieving a sealing effect.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An anti-siphon water pipe connector, characterized in that it comprises: The tube body (1) has wedge-shaped grooves (11) provided on the inner side of the openings at both ends of the tube body (1). Water outlet connector (2), the water outlet connector (2) is set at one end of the pipe body (1), and the wall surface of the end of the water outlet connector (2) connected to the pipe body (1) is provided with a first mating groove (21) that fits with the wedge groove (11); The protective connector (3) is located at the other end of the pipe body (1). The protective connector (3) is provided with a second mating groove (31) on the wall of the end connected to the pipe body (1) and fits into the wedge groove (11). The protective connector (3) is provided with a flow channel (32) and a stepped structure (33) is provided on the inner side of the flow channel (32). An anti-siphon assembly includes a connecting block (41) and a spherical block (42). The connecting block (41) is disposed in the flow channel (32) and cooperates with the stepped structure (33). After the connecting block (41) is connected to the protective connector (3), the spherical block (42) is limited and fixed in the flow channel (32). The connecting block (41) is provided with a flow channel. Among them, the inner flow channel (32) of the protective connector (3) and the pipe body (1) is in a constricted shape, and the constricted end of the flow channel (32) is provided with an abutment frame (34).

2. An anti-siphon water tube fitting according to claim 1, further characterized by include: The reset spring (5) is located on the outside of the contact frame (34) and on the end face of the junction of the flow channel (32). The reset spring (5) presses the spherical block (42) against the connecting block (41) and seals the flow channel.

3. The anti-siphon water pipe joint according to claim 1, characterized in that, The port at the inner end of the flow channel (32) can be flat.

4. The anti-siphon water pipe joint according to claim 1, characterized in that, The abutting frame (34) can be configured to have multiple upright structures (341) directly abutting against the spherical block (42), or it can be configured to have a washer structure (342) at the upper end of multiple upright structures (341) abutting against the spherical block (42).

5. The anti-siphon water pipe joint according to claim 1, characterized in that, The connecting block (41) includes: A rubber ring (411) is disposed on the outside of the stepped structure (33); A sealing ring (412) is provided on the outside of the rubber ring (411); The limiting frame (413) has multiple protruding structures (4131) on its outer circumferential surface. The limiting frame (413) cooperates with the flow channel (32) and limits and fixes the rubber ring (411) and the sealing ring (412) in the flow channel (32). Among them, a limiting groove (321) is provided on the inner wall of the flow channel (32) to cooperate with the protrusion structure (4131), and the diameter of the flow channel (32) outside the limiting groove (321) is larger than the opening of the limiting groove (321) and the flow channel (32).

6. The anti-siphon water pipe joint according to claim 1, characterized in that, it also... include: Plastic-coated component (6), which is made of heat-shrinkable material, is assembled to both ends of the pipe body (1) after the protective connector (3), the water outlet connector (2) are connected to the pipe body (1).

7. The anti-siphon water pipe joint according to claim 1, characterized in that, it also... include: Connecting joint (7), which is limited to the protective joint (3).

8. The anti-siphon water pipe joint according to claim 7, characterized in that, it also... include: A sealing ring (71) is provided on the connecting joint (7) and abuts against the protective joint (3).

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