Water heating pipe connecting structure

Abstract

The utility model discloses a water heating pipeline connecting structure, including female joint and male joint, the female joint inside screw joint has male joint, still include tail limit ring cover A, tail limit ring cover B, T shape fixed pipe, L shape handle board, vertical screw rod, secondary ring cover, secondary gasket ring and multilayer bottom ring, through to the female joint and male joint of water heating pipeline connection improvement, female joint and male joint's tail pipe spare department sets up tail limit ring cover A and tail limit ring cover B respectively, and the cooperation of tail limit ring cover A of female joint and tail limit ring cover B of male joint and T shape fixed pipe can position water heating pipeline in female joint and male joint tail pipe spare's hot melt insertion position, guarantee water heating pipeline and female joint and male joint hot melt insertion depth's accurate positioning, guarantee the smoothness and connection firmness after water heating pipeline connection.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a water heating pipe connection structure. Background Technology

[0002] Plumbing systems are pipe systems within buildings used to transport media such as hot water, cold water, or steam to achieve functions such as heating and water supply. They are an important component of building water supply, drainage, and HVAC systems, and their performance and the rationality of their connection structures directly affect the overall system's operational efficiency and safety. In some indoor plumbing areas, thermofusion connection adapters are used to connect two sets of plumbing pipes.

[0003] Currently, when using conversion joints to heat-melt connect two sets of water pipes made of different materials, the fittings behind the conversion joint and the pipes to be connected are usually directly heated and inserted. However, the heat-melting operation is unstable due to manual operation. If the pipe is not inserted deep enough into the fitting, the fusion area will be small and the connection strength will be insufficient, leading to easy leakage and separation later. If the insertion is too deep, too much molten material will be squeezed into the fitting, causing excessive reduction in the pipe diameter. This makes it impossible to guarantee the firmness of the water pipe connection and the smoothness of the flow. In addition, the threaded joint seals of the conversion joint are also prone to thermal aging due to contact with hot water during long-term use, resulting in a limited sealing life of the water pipe connection. Therefore, we propose a water pipe connection structure. Utility Model Content

[0004] The main objective of this invention is to provide a plumbing pipe connection structure. By improving the internal and external threaded fittings used for plumbing pipe connections, tail-limiting rings A and B are respectively installed at the tail fittings of the internal and external threaded fittings. The cooperation of tail-limiting rings A and B with the T-shaped guide pipe allows for precise positioning of the plumbing pipe at the tail fittings of the internal and external threaded fittings, ensuring accurate positioning of the plumbing pipe's heat fusion insertion depth and guaranteeing the smoothness and robustness of the connection after connection. Furthermore, the internal threaded joint and the external threaded joint press against the sealing gasket to form a primary seal. At the same time, the secondary ring cover, secondary gasket, and cladding bottom ring on the outside of the external threaded joint form a secondary seal. When the joint is screwed on, the internal threaded joint presses against the cladding bottom ring, causing the secondary gasket to tightly fill the space between the external threaded joint and the secondary ring cover. This, together with the sealing gasket of the primary seal, forms double protection. Even if the sealing gasket ages due to long-term contact with hot water, the double-layer seal design can maintain the sealing performance, significantly extending the sealing life of the water heating pipe connection parts and effectively solving the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A plumbing pipe connection structure includes an internal threaded joint and an external threaded joint. The internal threaded joint has an external threaded joint screwed into it. The structure also includes a tail-limiting ring cover A, a tail-limiting ring cover B, a T-shaped fixed pipe, an L-shaped handle plate, a vertical rotating rod, a secondary ring cover, a secondary gasket, and a multi-layered bottom ring. The tail-end fittings of the internal threaded joint and the external threaded joint, away from their respective connection points, are respectively fixed with tail-limiting ring cover A and tail-limiting ring cover B. A T-shaped fixed pipe is inserted between the tail-end fitting of the internal threaded joint and tail-limiting ring cover A. A T-shaped fixed pipe is inserted between the tail-end fitting of the external threaded joint and tail-limiting ring cover B. An L-shaped handle plate for screwing onto the vertical rotating rod is integrally formed on the outer convex ring surface of the T-shaped fixed pipe. A secondary ring cover is integrally formed on the surface of the external threaded joint on one side of the tail-limiting ring cover B. A secondary gasket is filled between the secondary ring cover and the external threaded joint. A multi-layered bottom ring is integrally formed at the bottom of the secondary gasket, and the multi-layered bottom ring presses between the head of the internal threaded joint and the bottom of the secondary ring cover.

[0007] Furthermore, two sets of L-shaped handle plates are symmetrically arranged on the outer side of the T-shaped fixed tube, and the outer surface of the L-shaped handle plate is provided with screw holes for screwing the vertical rotating rod.

[0008] By adopting the above technical solution, two sets of L-shaped handle plates on the outside of the T-shaped fixed tube can be screwed to the vertical rotating rod through the screw hole, thereby pressing and positioning the heat-to-melt tube body inserted into the T-shaped fixed tube.

[0009] Furthermore, the threaded rod head of the vertical rotating rod is provided with an L-shaped shank block;

[0010] By adopting the above technical solution, the L-shaped handle of the vertical rotating rod can be held by hand, thereby screwing the threaded rod of the vertical rotating tube into the screw hole of the L-shaped handle plate.

[0011] Furthermore, the T-shaped tube has a constriction rib protruding inside the tube opening on the side of the tube closest to its own outer convex ring, and an inner ring hoop rib protruding inside the T-shaped tube on the side of the constriction rib.

[0012] By adopting the above technical solution, the T-shaped fixed tube can be firmly fitted onto the body of the tube to be heated by the constriction ribs and inner ring stirrups.

[0013] Furthermore, a sealing gasket is pressed between the inner wall of the internal threaded connector and the external threaded connector;

[0014] By adopting the above technical solution, the internal threaded joint and the external threaded joint are pressed together and sealed by pressing against the sealing gasket.

[0015] Furthermore, the outer side of the annular cover of the secondary ring cover has protruding vertical ribs, and the secondary gasket inside the secondary ring cover has an internal thread connector embedded inside.

[0016] By adopting the above technical solution, the secondary ring cover with vertical ribs can be easily held firmly by hand, so that the secondary gasket ring rotates outside the internal thread joint.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model improves the internal and external threaded joints used for connecting water heating pipes. Tail limiting rings A and B are respectively installed at the tail fittings of the internal and external threaded joints. The cooperation of tail limiting rings A and B with the T-shaped guide pipe allows for precise positioning of the water heating pipe at the tail fittings of the internal and external threaded joints, ensuring accurate positioning of the water heating pipe's heat fusion insertion depth and guaranteeing the smoothness and firmness of the connection after connection.

[0019] Furthermore, the internal threaded joint and the external threaded joint press against the sealing gasket to form a primary seal. At the same time, the secondary ring cover, secondary gasket, and cladding bottom ring on the outside of the external threaded joint form a secondary seal. When the joint is screwed on, the internal threaded joint presses against the cladding bottom ring, causing the secondary gasket to tightly fill the space between the external threaded joint and the secondary ring cover. This, together with the sealing gasket of the primary seal, forms a double protection. Even if the sealing gasket ages due to long-term contact with hot water, the double-layer seal design can maintain the sealing performance and significantly extend the sealing life of the water heating pipe connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a water heating pipe connection structure according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the internal threaded connector and external threaded connector of a water pipe connection structure according to this utility model.

[0022] Figure 3 This is an exploded view of a water pipe connection structure according to the present invention.

[0023] Figure 4 This is a cross-sectional view of an external threaded joint for a water pipe connection structure according to this utility model.

[0024] Figure 5 This is a cross-sectional view of an internal threaded connector for a water pipe connection structure according to this utility model.

[0025] In the diagram: 1. Internal threaded connector; 2. External threaded connector; 3. Tail limiting ring cover A; 4. Tail limiting ring cover B; 5. T-shaped fixed pipe; 6. Narrowing rib; 7. Inner ring stirrup; 8. L-shaped handle plate; 9. Vertical rotating rod; 10. Secondary ring cover; 11. Secondary washer ring; 12. Multi-layer bottom ring; 13. Sealing thick washer. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-5 As shown, a plumbing pipe connection structure includes an internal threaded connector 1 and an external threaded connector 2. The external threaded connector 2 is screwed into the internal threaded connector 1. The structure also includes a tail-limiting ring cover A3, a tail-limiting ring cover B4, a T-shaped fixed pipe 5, an L-shaped handle plate 8, a vertical rotating rod 9, a secondary ring cover 10, a secondary gasket 11, and a multi-layered bottom ring 12. Tail-limiting ring covers A3 and B4 are respectively fixed at the tail fittings of the internal threaded connector 1 and the external threaded connector 2 away from their connection points. A T-shaped fixed pipe is inserted between the tail fitting of the internal threaded connector 1 and the tail-limiting ring cover A3. 5. A T-shaped fixed tube 5 is inserted between the tail tube of the external threaded connector 2 and the tail limiting ring cover B4. The outer convex ring surface of the T-shaped fixed tube 5 is integrally formed with an L-shaped handle plate 8 for screwing the vertical rotating rod 9. A secondary ring cover 10 is integrally formed on the surface of the external threaded connector 2 on one side of the tail limiting ring cover B4. A secondary gasket ring 11 is filled between the secondary ring cover 10 and the external threaded connector 2. A multi-layer bottom ring 12 is integrally formed at the bottom of the secondary gasket ring 11. The multi-layer bottom ring 12 is pressed between the head of the internal threaded connector 1 and the bottom of the secondary ring cover 10.

[0028] Among them, two sets of L-shaped handle plates 8 are symmetrically arranged on the outer side of the T-shaped fixed tube 5, and the outer plate surface of the L-shaped handle plate 8 is provided with screw holes for screwing the vertical rotating rod 9.

[0029] By adopting the above technical solution, two sets of L-shaped handle plates 8 on the outside of the T-shaped fixed tube 5 can be screwed to the vertical rotating rod 9 through the screw holes, thereby pressing and positioning the heat-to-melt tube body inserted into the T-shaped fixed tube 5.

[0030] The threaded rod head of the vertical rotating rod 9 is provided with an L-shaped handle block;

[0031] By adopting the above technical solution, the L-shaped handle of the vertical rotating rod 9 can be held by hand, thereby screwing the threaded rod of the vertical rotating tube 9 into the screw hole of the L-shaped handle plate 8.

[0032] Among them, the T-shaped fixed tube 5 has a constriction rib 6 protruding inside the tube opening on the side of its outer convex ring, and an inner ring stirrup 7 protruding inside the T-shaped fixed tube 5 on the side of the constriction rib 6.

[0033] By adopting the above technical solution, the T-shaped fixed tube 5 can be firmly fitted onto the body of the tube to be heated by the constriction rib 6 and the inner ring stirrup 7.

[0034] A sealing gasket 13 is pressed between the inner wall of the internal threaded connector 1 and the external threaded connector 2.

[0035] By adopting the above technical solution, the internal threaded connector 1 and the external threaded connector 2 are pressed together and sealed by pressing against the sealing gasket 13.

[0036] The secondary ring cover 10 has vertical ribs protruding on the outer side of the ring cover body, and the secondary gasket 11 inside the secondary ring cover 10 has an internal thread connector 1 embedded inside.

[0037] By adopting the above technical solution, the secondary ring cover 10 with vertical ribs is easy to be firmly held by hand, so that the secondary gasket ring 11 rotates and covers the inner thread joint 1.

[0038] It should be noted that this utility model is a water pipe connection structure. After improving the internal threaded connector 1 and external threaded connector 2 used for water pipe connection, tail limiting ring covers A3 and B4 are respectively provided at the tail fittings of the internal threaded connector 1 and external threaded connector 2. An additional secondary ring cover 10 is provided at the external threaded connector 2. When the internal threaded connector 1 and external threaded connector 2 need to be screwed together, the sealing thick washer 13 can be inserted into the internal threaded connector 1. Subsequently, the secondary washer 11 with a double-layered bottom ring 12 can be inserted into the external threaded connector 2 and the secondary ring cover 1. Between 0 and 1, the external threaded connector 2 can then be screwed into the internal threaded connector 1 to compress the sealing gasket 13 and form a primary seal. At this time, the internal threaded connector 1 can enter the secondary gasket 11 to compress the cladding bottom ring 12 and form a secondary seal. When the internal threaded connector 1 and the external threaded connector 2 need to be heat-fused to two sections of water pipe, the water pipe is placed against the outside of the fittings behind the internal threaded connector 1 and the external threaded connector 2. The T-shaped fixed pipe 5 is also placed near the tail limiting ring cover A3 and the tail limiting ring cover B4 for comparison. The required pipe length behind the internal threaded connector 1 and the external threaded connector 2 is measured. The hot-melt insertion length within the component and the position of the T-shaped fixed pipe 5 abutting against the tail limiting ring cover A3 and tail limiting ring cover B4 are marked using a tool. The T-shaped fixed pipe 5 is then slipped onto the outside of the plumbing pipe body, positioning it at the marked position. The vertical rotating rod 9 is then screwed onto the outside of the plumbing pipe from the L-shaped handle plate 8 for pressing and positioning. At this point, the plumbing pipe exposed inside the T-shaped fixed pipe 5, as well as the pipe fittings behind the internal threaded connector 1 and external threaded connector 2, can be heated at the pipe hot-melt machine. Subsequently, the T-shaped fixed pipe... The water heating pipe 5 is inserted and connected into the pipe fittings behind the internal threaded connector 1 and the external threaded connector 2. The T-shaped fixed pipe 5 is inserted and locked in the tail limiting ring cover A3 and tail limiting ring cover B4 respectively to ensure that the water heating pipe body and the pipe fittings behind the internal threaded connector 1 and the external threaded connector 2 are heat-fused and inserted in the predetermined position. Then the vertical rotating rod 9 can be rotated away. There are sealing thick gaskets 13 at the internal threaded connector 1 and the external threaded connector 2. Together with the secondary ring cover 10, the secondary gasket 11 and the double-layer bottom ring 12, the double-layer seal is formed to ensure the sealing life of the internal threaded connector 1 and the external threaded connector 2 when hot water passes through.

[0039] It should be noted that this utility model is a water heating pipe connection structure. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plumbing pipe connection structure, comprising an internal threaded connector (1) and an external threaded connector (2), wherein the internal threaded connector (1) is internally screwed with the external threaded connector (2), characterized in that: It also includes a tail-limiting ring cover A (3), a tail-limiting ring cover B (4), a T-shaped fixed tube (5), an L-shaped handle plate (8), a vertical rotating rod (9), a secondary ring cover (10), a secondary gasket ring (11), and a multi-layer bottom ring (12). The tail-limiting ring cover A (3) and the tail-limiting ring cover B (4) are respectively fixed at the tail pipe parts away from their own connection parts of the internal threaded joint (1) and the external threaded joint (2). A T-shaped fixed tube (5) is inserted between the tail pipe part of the internal threaded joint (1) and the tail-limiting ring cover A (3). The tail pipe part of the external threaded joint (2) and the tail-limiting ring cover B (4) are respectively fixed at the tail pipe parts. A T-shaped fixed tube (5) is inserted between the two parts, and an L-shaped handle plate (8) for screwing on the outer convex ring surface of the T-shaped fixed tube (5) is integrally formed. A secondary ring cover (10) is integrally formed on the surface of the outer threaded connector (2) on one side of the tail limit ring cover B (4), and a secondary gasket ring (11) is filled between the secondary ring cover (10) and the outer threaded connector (2). A multi-layer bottom ring (12) is integrally formed at the bottom of the secondary gasket ring (11), and the multi-layer bottom ring (12) is pressed between the head of the inner threaded connector (1) and the bottom of the secondary ring cover (10).

2. The water pipe connection structure according to claim 1, characterized in that: Two sets of L-shaped handle plates (8) are symmetrically arranged on the outer side of the T-shaped fixed tube (5), and the outer plate surface of the L-shaped handle plate (8) is provided with screw holes for screwing the vertical rotating rod (9).

3. The water pipe connection structure according to claim 1, characterized in that: The threaded rod head of the vertical rotating rod (9) is provided with an L-shaped handle block.

4. The water pipe connection structure according to claim 1, characterized in that: The T-shaped tube (5) has a constriction rib (6) protruding inside the tube opening on the side of its outer convex ring, and an inner ring stirrup (7) protruding inside the T-shaped tube (5) on the side of the constriction rib (6).

5. A water pipe connection structure according to claim 1, characterized in that: A sealing gasket (13) is pressed between the inner wall of the internal thread connector (1) and the external thread connector (2).

6. The water pipe connection structure according to claim 1, characterized in that: The outer side of the annular cover (10) of the secondary ring cover (10) has a raised vertical rib, and the secondary gasket (11) inside the secondary ring cover (10) has an internal thread connector (1) embedded inside.

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