Novel anti-explosion water-stopping water pipe connector

Abstract

The utility model discloses a novel anti-explosion water-stopping water pipe connector which is used for being in butt joint with a connector of a water outlet connecting piece and comprises a connector pipe body and a core which is fixedly connected in a port of the connector pipe body and is provided with a water flow channel, one end of the water flow channel is a water inlet end, and the other end of the water flow channel is a water outlet end. The core is provided with a water stop sealing structure for achieving leakage prevention between the core and the water outlet connecting piece, and the core is further provided with a self-closing structure for self-closing the water flow channel, an opening structure for self-opening the water flow channel and an impact anti-explosion structure capable of blocking the water flow channel when water pressure changes abnormally. According to the water pipe connector of the structure, automatic closing can be achieved when no water outlet connection exists, when water outlet connecting pieces such as a water outlet valve are installed, use of a self-sealing non-raw material belt can be achieved, and the impact anti-explosion structure can achieve the water stop function effect under the water outlet conditions such as faucet breakage, valve element burst and hose burst; and the quick explosion-proof and water-stopping effects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of water pipe connectors, and in particular to the field of water pipe connectors with water-stopping function. Background Technology

[0002] Chinese Patent Application No. 202323292846.0, filed on December 1, 2023, discloses a utility model patent application for a self-sealing one-way stop valve and a water pipe connector with a self-sealing function. The water pipe connector with this structure can achieve self-sealing when not connected to faucets, angle valves, or other water outlet control components, eliminating the need for plugs. When connected to faucets, angle valves, or other water outlet control components, it eliminates the need to wrap PTFE tape to prevent leakage. It reduces the inconvenience of frequently switching the main valve on and off during water circuit installation, testing, maintenance, and replacement of faucets. It eliminates the need for professional technicians to perform installation, maintenance, and replacement operations. Therefore, the product structure of this patent application presents a new type of plumbing product with significant benefits.

[0003] In real life, in addition to the above-mentioned situations where a water valve is not connected and water needs to be stopped, there are also abnormal situations such as broken faucets, burst valve cores, burst hoses, etc. When abnormal situations occur, the water-stopping activity of the core component in the above-mentioned patent application may not be achieved. In real life, this has led to serious damage such as water overflowing into indoor rooms, causing water damage to furniture, wooden floors, etc. In view of this, the inventors of this case continued to research and improve on the existing structure, which led to this case. Summary of the Invention

[0004] The purpose of this utility model is to provide a new type of explosion-proof water-stopping pipe joint that adds a water-stopping function to cope with water outflow situations such as broken faucets, burst valve cores, and burst hoses.

[0005] To achieve the above objectives, the technical solution of this utility model is: a novel explosion-proof and water-stopping water pipe connector, which is used to connect with the interface of the water outlet connector. It includes a connector body and a core fixedly connected to the port of the connector body and configured as a water flow channel. One end of the water flow channel is the water inlet and the other end is the water outlet. The core is provided with a water-stopping and sealing structure to prevent leakage between the core and the water outlet connector. The core is also provided with a self-closing structure for the water flow channel, an opening structure for the water flow channel, and an impact-proof and explosion-proof structure that can block the water flow channel when the water pressure changes abnormally.

[0006] The impact-proof structure includes an explosion-proof water-stop section on the core, an installation cavity formed by the water flow channel corresponding to the explosion-proof water-stop section, and an explosion-proof water-stop component installed in the explosion-proof water-stop section that can flexibly block the water flow channel when the water pressure changes abnormally.

[0007] The explosion-proof water-stop section has an inner baffle at one end facing the water inlet and an outer baffle at one end facing the water outlet. The inner baffle is configured to block the explosion-proof water-stop component installed in the mounting cavity without affecting the flow of water through the channel. The outer baffle has a through-hole for connecting the water flow channel. The explosion-proof water-stop hole is configured to be blocked by the explosion-proof water-stop component installed in the mounting cavity, thereby blocking the water flow channel. Alternatively, the explosion-proof water-stop section has an outer baffle at one end facing the water outlet, and the outer baffle has a through-hole for connecting the water flow channel. The explosion-proof water-stop hole is configured to be blocked by the explosion-proof water-stop component installed in the mounting cavity, thereby blocking the water flow channel.

[0008] The explosion-proof water-stopping component includes an elastic component and a movable component; one end of the elastic component abuts against the outer stop and the other end abuts against the movable component, and the elastic component elastically pushes the movable component against the inner stop; or, one end of the elastic component is fixedly connected to the outer stop and the other end is fixedly connected to the movable component.

[0009] The core includes a cylindrical body and a water-stopping movable rod that is axially movable through the cylindrical body; the water-stopping movable rod forms the water flow channel axially inside, the explosion-proof water-stopping section is set on the water-stopping movable rod, and the part of the water-stopping movable rod corresponding to the explosion-proof water-stopping section is the outer cylindrical section.

[0010] The explosion-proof water-stopping section on the water-stopping movable rod is either integrally formed with the water-stopping movable rod or is an integral structure assembled and connected with the water-stopping movable rod.

[0011] The self-closing structure is provided at the end of the water-stopping movable rod facing the water inlet end, which is a water-sealing structure for its axial movement and sealing the end of the cylinder to block water flow to the water inlet end. The water inlet end of the water flow channel is provided with a water inlet on the side wall between the explosion-proof water-stopping section and the water-sealing structure on the water-stopping movable rod. A self-push structure is provided between the cylinder and the water-stopping movable rod, which is pushed by elastic tension so that its water-sealing structure can block the end of the cylinder. And / or, the opening structure is provided at the end of the water-stopping movable rod, which is a push part for the water supply and outlet connection to abut and push its movement. And / or, the water-stopping sealing structure includes a push sealing structure, which is configured to prevent water from flowing out without passing through the water flow channel and to prevent water from entering the water outlet connection when the opening structure is opened.

[0012] The pushing part is a protruding edge protruding from the outside of the water-stopping rod, and the explosion-proof water-stopping section corresponds to the side of the pushing part facing the water outlet end. The outer diameter of the explosion-proof water-stopping section is smaller than the outer diameter of the protruding edge, forming a structure that can be embedded in the water outlet connector during installation and use; or, the pushing part is a protruding edge protruding from the outside of the end of the water-stopping rod facing the water outlet end; or, the pushing part is the end face of the explosion-proof water-stopping section facing the water outlet end.

[0013] The cylindrical body and the connector tube are integrally formed, or the cylindrical body is injection molded and tightly connected to the connector tube to form an integral structure.

[0014] The cylinder body has an internal thread for connecting the water outlet connector at the port facing the water outlet, or the end of the cylinder body facing the water outlet protrudes outside the port of the connector pipe and has an external thread for connecting the water outlet connector.

[0015] The push sealing structure is provided with a sealing gasket on the push part that can seal against the end of the cylinder facing the water outlet and the water supply and outlet connection piece;

[0016] Alternatively, the push-sealing structure is formed by a step on the inner side wall of the cylinder, which abuts against the push part when the water-stopping movable rod moves, and the push part is provided with a sealing gasket that can seal against the step and the water supply and outlet connection.

[0017] Alternatively, the push sealing structure includes an internal sealing structure between the inner side wall of the cylinder and the water-stopping movable rod, and the push part is provided with a sealing gasket that seals against the water outlet connector.

[0018] The sealing gasket is a circumferentially rotating cross-section U-shaped sealing gasket fitted onto the pushing part, or the sealing gasket has a positioning protrusion embedded in the positioning groove formed on the pushing part.

[0019] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The explosion-proof water-stopping pipe joint with the above-mentioned structure can achieve a seal between itself and the water outlet connector during installation and use through the water-stopping sealing structure to prevent leakage. Due to the self-closing and opening structures on the core, the water pipe joint can close the water flow channel on the core through the self-closing structure, preventing water flow and effectively stopping water. Before or after installing the water outlet connector, there is no need to use plugs or wrapping PTFE tape for water blocking; it can automatically stop water flow, which is simple to operate, saves operating time, and saves on PTFE tape consumables. Furthermore, the opening structure allows for direct installation of the water outlet connector without the need for residual PTFE tape, greatly improving installation convenience. In addition, if the water pipe joint comes into contact with a loose or burst water outlet valve, it can immediately and automatically close under the action of the self-closing structure to stop water flow. The structural effect described above represents the first layer of explosion-proof protection for this explosion-proof water pipe connector. Its improved impact-resistant explosion-proof structure provides a second layer of protection. Specifically, this is because its design can block the water flow channel when there are abnormal changes in water pressure. Under this structure, the water pressure in normal domestic water pipes remains within a normal range. However, when a burst occurs in the outlet valve or its connected pipe, a sudden pressure increase occurs, resulting in an abnormal water pressure change. The impact-resistant explosion-proof structure immediately blocks the water flow channel, thus achieving the second layer of protection. This effectively prevents serious damage such as water damage to furniture and wooden floors caused by broken faucets or burst valve cores. After the water pressure returns to normal, the impact-resistant explosion-proof structure automatically releases its blockage. The present invention relates to a structural design for an explosion-proof water-stopping pipe joint, which is compact and stable, has reliable function, is easy to manufacture, and is also easy to assemble. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first structure of an explosion-proof and water-stopping pipe joint that relates to this utility model.

[0021] Figure 2 This is a schematic diagram of the second structure of an explosion-proof and water-stopping pipe joint that relates to this utility model.

[0022] Figure 3 yes Figure 1 Exploded view of the product structure.

[0023] Figure 4 yes Figure 2 Exploded view of the product structure.

[0024] Figure 5 This is a schematic diagram of the third structure of an explosion-proof and waterproof pipe connector involved in this utility model.

[0025] Figure 6 This is a schematic diagram of the fourth structure of an explosion-proof and water-stopping pipe joint involved in this utility model.

[0026] Figure 7 This is a schematic diagram of the fifth structure of an explosion-proof water-stopping pipe joint involved in this utility model.

[0027] Figure 8 This is a schematic diagram of the sixth structure of an explosion-proof and water-stopping pipe connector involved in this utility model.

[0028] Figure 9 This is a schematic diagram of the seventh structure of an explosion-proof and waterproof pipe connector involved in this utility model.

[0029] Figure 10 This is the eighth structural schematic diagram of an explosion-proof and water-stopping pipe joint involved in this utility model.

[0030] Figure 11 This is a schematic diagram of the ninth structure of an explosion-proof and water-stopping pipe connector involved in this utility model.

[0031] Figure 12 This is a schematic diagram of the 10th structure of an explosion-proof and water-stopping pipe joint involved in this utility model.

[0032] In the picture:

[0033] Connector body 100; Core 10; Water flow channel 1; Inlet 11; Outlet 12;

[0034] Explosion-proof waterstop section 13; mounting cavity 14; inner baffle 15; outer baffle 16; explosion-proof waterstop hole 161;

[0035] Water-stop sealing structure 3; push-sealing structure 31; self-closing structure 4;

[0036] Opening structure 5; Propulsion unit 51; Impact and explosion-proof structure 6;

[0037] Explosion-proof water-stopping component 7; elastic component 71; movable component 72; cylinder body 8; open sealing end 81;

[0038] 82; Step edge; 83; Internal sealing structure;

[0039] Water-stopping movable rod 9; outer cylinder section 91; water-sealing structure 92; sealing ring 921;

[0040] Self-propelled structure 922. Detailed Implementation

[0041] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0042] This embodiment discloses an explosion-proof water-stopping pipe connector, commonly including straight pipe connectors and 90-degree bend pipe connectors. The figure shows a bend pipe connector, which is mainly used in daily life for structural connection between the end of a water system and the outlet connection, such as connecting hoses, angle valves, area controllers, faucets, etc. Its structure is as follows: Figures 1-12 As shown, it mainly includes a connector tube body 100 and a core 10 fixedly connected to the port of the connector tube body 100 and configured to form a water flow channel 1. One end of the water flow channel 1 is a water inlet 11 and the other end is a water outlet 12. The core 10 is provided with a water-stop sealing structure 3 to prevent leakage between it and the water outlet connector. The core 10 is also provided with a self-closing structure 4 for the self-closing water flow channel 2, an opening structure 5 for the self-opening water flow channel 2, and an impact-proof explosion-proof structure 6 that can block the water flow channel 2 when the water pressure changes abnormally.

[0043] The impact-proof explosion-proof structure 6 described in this embodiment, such as Figure 3-12 As shown, the device includes a core 10 with an explosion-proof water-stop section 13, an installation cavity 14 formed by a water flow channel 1 corresponding to the explosion-proof water-stop section 13, and an explosion-proof water-stop component 7 disposed within the explosion-proof water-stop section 13, which can flexibly block the water flow channel 1 when there are abnormal changes in water pressure (the explosion-proof water-stop component 7 is a structural design that utilizes the water pressure change within the water flow channel at the moment of bursting of a hose, faucet, etc. to achieve the working conditions of the explosion-proof water-stop component to stop water). The core 10 includes a cylinder 8 and an axially movable water-stopping rod 9 passing through the cylinder 8; the water flow channel 1 is formed axially inside the water-stopping rod 9, the explosion-proof water-stop section 13 is disposed on the water-stopping rod 9, and the portion of the water-stopping rod 9 corresponding to the explosion-proof water-stop section 13 is an outer cylinder section 91.

[0044] The cylindrical body 8 and the connector pipe 100 of this utility model can be integrally formed (e.g., integrally cast from metal or integrally injection molded from plastic). Alternatively, the cylindrical body 8 can be made of metal and the connector pipe 100 can be injection molded from plastic. The cylindrical body 8 is placed directly in the mold during the injection molding process of the connector pipe 100, thus achieving a tight, integral connection. The figure shows a schematic diagram of this injection-molded, integral connection. Generally, there are two types of structures for connecting water pipe connectors and water outlet fittings: internal and external connections. An internal connection means that the port of the cylindrical body 8 facing the water outlet end 12 has an internal thread for connecting the water outlet fitting. Figure 1 , 3 As shown in figures 5, 6, 7, and 12; the external connection refers to the end of the cylinder 8 facing the water outlet 12 protruding outside the port of the connector pipe 100 and having an external thread for connecting the water outlet connector, as shown in figures 5, 6, 7, and 12; Figure 2 , 4 As shown in 8, 9, 10 and 11.

[0045] The explosion-proof water-stop section 13, such as Figure 5 and Figure 8 As shown, an inner baffle 15 is provided at one end facing the water inlet 11, and an outer baffle 16 is provided at the other end facing the water outlet 12. The inner baffle 15 is configured to block the explosion-proof water-stopping element 7 provided in the mounting cavity 14 without affecting the flow of water through the channel 1. The outer baffle 16 is provided with a through explosion-proof water-stopping hole 161 that connects to the water flow channel 1. The explosion-proof water-stopping hole 161 is configured to be blocked by the explosion-proof water-stopping element 7 provided in the mounting cavity 14, thereby blocking the water flow channel 11. The explosion-proof water-stopping component 7 includes an elastic component 71 and a movable component 72. One end of the elastic component 71 abuts against the outer stop portion 16, and the other end abuts against the movable component 72. The elastic component 71 elastically pushes the movable component 72 against the inner stop portion 15. As shown in the figure, the movable component 72 is provided with a sealing part that can block the explosion-proof water-stopping hole 161. The elastic component 71 is a conical spring, with its larger diameter end abutting against the edge of the explosion-proof water-stopping hole 161. The sealing part is formed by the movable component 72 protruding towards the side of the explosion-proof water-stopping hole 161. The smaller diameter end of the spring is sleeved on the sealing part, and the sealing part forms a sealing guide structure. In this way, by selecting a suitable spring with an elastic coefficient that can be compressed when the water pressure increases abnormally, that is, a spring that can push the movable block 72 to compress the spring when the water pressure increases abnormally (for example, the spring normally used in domestic water pipes in a typical household). When the water pressure is no more than 0.5 MPa, and in cases such as bursting of faucets, angle valves, or hoses, the water pressure will exceed 0.5 MPa. A spring with a compressibility coefficient greater than 0.5 MPa can be selected to push the sealing part towards the explosion-proof water-stop hole 161 and block it, thus achieving immediate water stoppage upon bursting. Furthermore, it can maintain the blockage of the explosion-proof water-stop hole 161 until the problem causing abnormal water pressure is addressed, thereby achieving the aforementioned objective of this invention. After the abnormal water pressure is resolved, the pressure pushing the explosion-proof water-stop component 7 disappears, and under the elastic tension of the explosion-proof water-stop component 7, the movable block 72 automatically resets, the explosion-proof water-stop hole 161 is unblocked, and the water flow channel 1 at the explosion-proof water-stop section 13 is restored to flowability. The water pressure in the water flow channel 1 is at a normal state, and the explosion-proof water-stop section 13 is in a normal state.

[0046] Alternatively, the structure of the inner baffle 15 can be omitted from the above structure (the structure of other components is described above). The explosion-proof waterstop 7 needs to be improved by fixing one end of the elastic member 71 to the outer baffle 16 and the other end to the movable member 72. This can also achieve the function of the explosion-proof waterstop 7.

[0047] The explosion-proof water-stopping section 13 on the water-stopping movable rod 9 is an integrally formed structure with the water-stopping movable rod 9 or is assembled and connected with the water-stopping movable rod 9 to form an integral structure. As shown in the figure, the outer cylinder section 91 is an integrally formed structure extending from the end of the water-stopping movable rod 9 toward the water outlet; or, the outer cylinder section 91 is an independent component that is fixedly connected to the water-stopping movable rod 9 by a connecting structure (not shown in the figure). As shown in the figure, the outer cylinder section 91 is an independent component, while the inner baffle 15 and the outer baffle 16 are also independent components assembled into a fixed whole through a connecting structure. A leak-proof sealing structure is provided between the outer cylinder section 91 and the water-stopping movable rod 9, and between the outer baffle 16 and the outer cylinder section 91. Alternatively, the outer cylinder section 91 is an independent component, while the outer baffle 16 is also an independent component assembled into a fixed whole through a connecting structure. The inner baffle 15 and the outer cylinder section 91 are integrally formed, and a leak-proof sealing structure is provided between the outer cylinder section 91 and the water-stopping movable rod 9, and between the outer baffle 15 and the outer cylinder section 91. Alternatively, in the case where the outer cylinder section 91 is an independent component, the inner baffle is also an independent component assembled into a fixed whole via a connecting structure, and the outer baffle 16 and the outer cylinder section 91 are integrally formed, with a leak-proof sealing structure between the outer cylinder section 91 and the water-stopping movable rod 9; or, in the case where the outer cylinder section 91 is an integrally formed structure extending from the end of the water-stopping movable rod 9 towards the water outlet, the outer baffle 16 is an integrally formed structure, and the inner baffle 15 is an independent component fixedly connected to the outer cylinder section 91 via a connecting structure, with a locking structure at the end of the water-stopping movable rod 9 towards the water inlet 11, which has... The outer cylinder section 91 is integrally formed as an extension of the end of the water-stopping movable rod 9 toward the water outlet 12. The inner baffle 15 is an integrally formed structure, and the outer baffle 16 is an independent component fixedly connected to the outer cylinder section 91 via a connecting structure, with a leak-proof sealing structure between them. Alternatively, the outer cylinder section 91 is integrally formed as an extension of the end of the water-stopping movable rod 9 toward the water outlet 12. The outer baffle 16 is an independent component fixedly connected to the outer cylinder section 91 via a connecting structure, with a leak-proof sealing structure between them. The inner baffle 15 is an independent component fixedly connected to the outer cylinder section 91 via a connecting structure, with a leak-proof sealing structure between them. The outer cylinder section 91 is fixedly connected to the inner cylinder section 91 as a whole; or, in the case where the outer cylinder section 91 is an independent component, the inner baffle 15 and the water-stopping movable rod 9 are integrally formed, and the outer baffle 16 is an independent component fixedly connected to the outer cylinder section 91 through a connecting structure, and a leak-proof sealing structure is provided between the outer cylinder section 91 and the water-stopping movable rod 9 and between the outer baffle 16 and the outer cylinder section 91; or, in the case where the outer cylinder section 91 is an independent component, the inner baffle and the water-stopping movable rod 9 are integrally formed, and the outer baffle and the outer cylinder section 91 are integrally formed, and a leak-proof sealing structure is provided between the outer cylinder section 91 and the water-stopping movable rod 9.Alternatively, the outer cylinder section 91 may be an integrally formed structure extending from the end of the water-stopping movable rod 9 toward the water outlet 12, wherein the outer baffle 16 and the inner baffle 15 are independent components, the inner baffle 15 is a sleeve structure nested inside the outer cylinder section 91, the end of the inner baffle 15 facing the water inlet 11 forms a blocking structure and the interior of the inner baffle 15 forms a cavity, and the outer baffle 16 is connected to the outer cylinder section 91 by a connecting structure and a leak-proof sealing structure is provided between them; or, the outer cylinder section 91 may be the water-stopping movable rod 9 In the integrally formed structure extending towards the water outlet 12, the outer baffle 16 and the inner baffle 15 are independent components. The inner baffle 15 is nested within the outer cylinder section 91 in a sleeve structure. The end of the inner baffle 15 facing the water inlet 11 forms a blocking structure to block the explosion-proof water-stopping component 7, and the interior of the inner baffle 15 forms a cavity. The outer baffle 16 is connected to the end of the inner baffle 15 facing the water outlet 12 via a connecting structure. A leak-proof sealing structure is provided between the outer cylinder section 91, the inner baffle 15, and the outer baffle 16. If the structure of the inner baffle 15 is omitted, the structure in the above embodiment and the accompanying drawings will be omitted accordingly.

[0048] The self-closing structure 4, such as Figure 5-12 As shown, the end of the water-stopping movable rod 9 facing the water inlet 11 is provided with a water-sealing structure 92 for its axial movement and sealing the end of the cylinder 8 to block water flow to the water inlet 11. As shown in the figure, the end of the cylinder 8 facing the water outlet 12 is the open sealing end 81, and the end facing the water inlet 11 (or the end with an embedded countersunk hole) is the sealing end 82. The water-sealing structure 92 extends the end of the water-stopping movable rod 9 out of the sealing end 82 and is fixedly fitted with a sealing ring 921. There is a self-push structure 922 between the cylinder 8 and the water-stopping movable rod 9, which pushes the water-stopping movable rod 9 with elastic tension so that its sealing ring 921 can seal the sealing end 82. The water inlet 11 of the water flow channel 1 is provided with a water inlet on the side wall between the explosion-proof water-stopping section 13 and the water-sealing structure 92 on the water-stopping movable rod 9.

[0049] The opening structure 5 is that the water-stopping movable rod 9 is provided with a pushing part 51 for the water supply and outlet connector to abut against and push its movement; such as Figure 3 , 5 As shown in Figures 8, 11, and 12, the pushing part 51 has a protruding edge on the outer side of the water-stopping movable rod 9. The explosion-proof water-stopping section 13 corresponds to the side of the pushing part 51 facing the water outlet end 12. The outer diameter of the explosion-proof water-stopping section 13 is smaller than the outer diameter of the protruding edge, forming a structure that can be embedded in the water outlet connector during installation and use. The protruding edge of this structure corresponds to the open sealing end 81 of the cylinder 8. During pushing, the water-stopping sealing structure 3 can seal the protruding edge with the open sealing end 81 and the port of the water outlet connector, thereby achieving a sealed connection after pushing.

[0050] The water-stop sealing structure 3 includes a push-seal structure 31, which is a leak-proof structure designed to prevent water from flowing out without passing through the water flow channel 1 and to prevent water from entering the outlet connection when the opening structure 5 is open. Figure 8 and 11 As shown, the push-sealing structure 31 disclosed in this embodiment consists of a U-shaped sealing gasket on the push part 51 that can seal against the open sealing end 81 of the cylinder 8 and the water supply / outlet connection. The U-shaped sealing gasket can be stably fitted onto the push part 51, which can better maintain structural stability and tight sealing to prevent leakage. To achieve stable setting of the sealing gasket, a positioning protrusion formed on the sealing gasket can also be embedded in the positioning groove formed on the push part 51. The water-stop sealing structure 3 provided above can be used for water pipe joints that are internally or externally connected to the water supply connection. Usually, the explosion-proof water-stop section 91 is embedded in the water supply connection when it is installed and used.

[0051] Alternatively, it can be further improved to have the explosion-proof water-stop section 91 embedded within the 8-port of the cylinder, such as... Figure 5 and 12 As shown, the pushing part 51 has a protruding edge on the outer side of the end of the stop valve rod 9 facing the water outlet 12. The pushing sealing structure 31 has a stepped edge 83 formed on the inner wall of the cylinder 8 for the stop valve rod 9 to abut against the pushing part 51 when it moves. The pushing part 51 is provided with a U-shaped sealing gasket that can seal against the stepped edge 83 and the water supply and outlet connection. Figure 6 and Figure 7 As shown, unlike the aforementioned structure, the pushing part 51 is the end face of the explosion-proof water-stop section 13 facing the water outlet 12. The pushing sealing structure 31 includes an internal sealing structure 84 between the inner wall of the cylinder 8 and the water-stop movable rod 9, and a sealing gasket provided on the pushing part 51 that seals against the water outlet connector. Sealing can also be achieved directly with the end of the cylinder 8 facing the water outlet 12 through this sealing gasket, eliminating the need for the internal sealing structure 84. Figure 9 and Figure 10 .

[0052] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A new type of explosion-proof water stop pipe joint, which is used for interfacing with the interface of a water outlet connector, characterized in that, The application relates to a joint pipe body, a core fixedly connected in a port of the joint pipe body and configured to have a water flow channel, one end of the water flow channel being an inlet end and the other end being an outlet end, a water sealing structure for realizing anti-leakage between the core and an outlet connecting piece, a self-closing structure provided on the core for self-closing the water flow channel, an opening structure provided on the core for opening the water flow channel, and an impact explosion-proof structure for blocking the water flow channel when water pressure abnormally changes.

2. A new type of explosion-proof water stop pipe joint as claimed in claim 1, characterized in that, The impact explosion-proof structure comprises an explosion-proof water sealing section provided on the core, an installation cavity formed by the water flow channel corresponding to the explosion-proof water sealing section, and an explosion-proof water sealing piece provided in the explosion-proof water sealing section and capable of moving to block the water flow channel when water pressure abnormally changes.

3. A new type of explosion-proof water stop pipe joint as claimed in claim 2, characterized in that, One end of the explosion-proof water sealing section towards the inlet end is provided with an inner blocking part, and one end of the explosion-proof water sealing section towards the outlet end is provided with an outer blocking part, the inner blocking part is configured to block the explosion-proof water sealing piece provided in the installation cavity and not to affect the water flow in the water flow channel, the outer blocking part is provided with an explosion-proof water sealing hole penetrating through and connecting the water flow channel, and the explosion-proof water sealing hole is configured to be blocked by the explosion-proof water sealing piece provided in the installation cavity so as to block the water flow channel. Alternatively, one end of the explosion-proof water sealing section towards the outlet end is provided with an outer blocking part, the outer blocking part is provided with an explosion-proof water sealing hole penetrating through and connecting the water flow channel, and the explosion-proof water sealing hole is configured to be blocked by the explosion-proof water sealing piece provided in the installation cavity so as to block the water flow channel.

4. A new type of explosion-proof water stop pipe joint as claimed in claim 3, characterized in that, The explosion-proof water sealing piece comprises an elastic piece and a movable piece, one end of the elastic piece is abutted against the outer blocking part, the other end of the elastic piece is abutted against the movable piece, and the elastic piece elastically abuts the movable piece against the inner blocking part. Alternatively, one end of the elastic piece is fixedly connected to the outer blocking part, and the other end of the elastic piece is fixedly connected to the movable piece.

5. A new type of explosion-proof water stop pipe joint according to any one of claims 2-4, characterized in that, The core comprises a cylinder and a water sealing movable rod movably arranged in the cylinder, the water flow channel is formed in the axial interior of the water sealing movable rod, the explosion-proof water sealing section is arranged on the water sealing movable rod, and the part of the water sealing movable rod corresponding to the explosion-proof water sealing section is an outer cylinder section.

6. A new type of explosion-proof water stop pipe joint as claimed in claim 5, characterized in that, The explosion-proof water sealing section on the water sealing movable rod is an integral structure with the water sealing movable rod or an integral structure assembled and connected with the water sealing movable rod. The cylinder and the joint pipe body are an integral structure or the cylinder is tightly combined and connected to the joint pipe body by injection molding to form an integral structure.

7. A new type of explosion-proof water stop pipe joint as claimed in claim 5, characterized in that, The self-closing structure is that an end of the water sealing movable rod towards the inlet end is provided with a water sealing structure for axially moving and sealing the end of the cylinder to block the water flow to the inlet end, the inlet end of the water flow channel is provided with an inlet opening on the side wall of the water sealing movable rod between the explosion-proof water sealing section and the water sealing structure, and a self-driving structure is arranged between the cylinder and the water sealing movable rod to drive the water sealing movable rod by elastic tension so that the water sealing structure can seal the end of the cylinder. The opening structure is that the water sealing movable rod is provided with a pushing part for abutting and driving the water sealing movable rod to move. The water sealing structure comprises a pushing sealing structure, the pushing sealing structure is configured to prevent the water flow from flowing out through the water flow channel and to prevent the water flow from entering the outlet connecting piece when the opening structure is opened.

8. A new type of explosion-proof water stop pipe joint as claimed in claim 7, characterized in that, The pushing part is a convex edge protruding outside the water stop movable rod, the explosion-proof water stop section corresponds to one side of the pushing part towards the water outlet end, the outer diameter of the explosion-proof water stop section is smaller than the outer diameter of the convex edge to form a structure that can be embedded in the water outlet connector during installation and use; Alternatively, the pushing part is a convex edge protruding outside the end of the water stop movable rod towards the water outlet end; Alternatively, the pushing part is the end face of the end of the explosion-proof water stop section towards the water outlet end.

9. A new type of explosion-proof water stop pipe joint as claimed in claim 7, characterized in that, The inner thread for connecting the water outlet connector is arranged in the port of the cylinder body towards the water outlet end, Alternatively, the end of the cylinder body towards the water outlet end protrudes outside the port of the joint pipe body and is provided with an outer thread for connecting the water outlet connector.

10. A new type of explosion-proof water stop pipe joint as claimed in claim 9, characterized in that, The pushing sealing structure is a sealing gasket arranged on the pushing part and capable of sealingly abutting the end of the cylinder body towards the water outlet end and the water outlet connector; Alternatively, the pushing sealing structure is a step formed on the inner side wall of the cylinder body and capable of abutting the pushing part when the water stop movable rod moves, and the pushing part is provided with a sealing gasket capable of sealingly abutting the step and the water outlet connector; Alternatively, the pushing sealing structure includes an inner cylinder sealing structure between the inner side wall of the cylinder body and the water stop movable rod, and the pushing part is provided with a sealing gasket capable of sealingly abutting the water outlet connector.

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