Explosion-proof water stop valve rod capable of reducing separated polluted water flow

Abstract

The utility model relates to the field of water outlet control valve products, in particular to an anti-explosion water stop valve rod capable of reducing separated polluted water flow, which comprises an anti-explosion water stop valve main body of a water flow channel with a water inlet end and a water outlet end, and a butt joint pipe connected with the anti-explosion water stop valve main body, one end of the butt joint pipe is a connecting end which is connected with the water outlet end of the anti-explosion water stop valve main body and is communicated with an internal water flow channel, and the other end of the butt joint pipe is a butt joint end for realizing anti-leakage sealing; the anti-explosion water stop valve body comprises a valve shell. The butt-joint pipe and the valve shell are integrally formed structural parts or the butt-joint pipe is an independent part and is fixedly connected together through a connecting structure, and an anti-leakage sealing structure is arranged between the butt-joint pipe and the valve shell. Through the arrangement of the extension structure, butt joint of water flow channels capable of reducing metal pollution can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of water outlet control valve products. Background Technology

[0002] The applicant in this case has developed an explosion-proof water stop valve applicable to pipe fittings, faucets, angle valves, and other pipe parts. It can achieve the function of preventing explosions and stopping water flow. It can automatically stop water flow in the event of damage to faucets, valve cores, hoses, fittings, etc. during daily use, resulting in burst water leakage. The protective effect is significant and has attracted much attention.

[0003] For applications involving faucets, angle valves, and other water outlet control valves where metal contamination is required or minimized, current explosion-proof stop valve structures cannot directly achieve a metal-free or metal-reduced water flow channel connection. Therefore, the inventors of this case have improved the existing product structure to address this need, resulting in this invention. Summary of the Invention

[0004] The purpose of this utility model is to provide an explosion-proof stop valve stem that reduces the precipitation of polluted water flow. By extending the structure, the water flow channel can be connected to reduce metal contamination.

[0005] To achieve the above objectives, the technical solution of this utility model is: an explosion-proof stop valve stem that reduces the amount of polluted water released, comprising an explosion-proof stop valve body having a water flow channel with an inlet end and an outlet end, and a connecting pipe for connecting the explosion-proof stop valve body. One end of the connecting pipe is a connecting end that is connected to the outlet end of the explosion-proof stop valve body and communicates with the internal water flow channel, and the other end is a mating end for achieving a leak-proof seal.

[0006] The explosion-proof water-stop valve body includes a valve housing; the connecting pipe and the valve housing are integrally formed structural components, or the connecting pipe is an independent component that is fixedly connected together by a connecting structure and has a leak-proof sealing structure between them.

[0007] An installation cavity is formed between the inlet and outlet ends within the valve housing. The explosion-proof water-stop valve body also includes an inlet baffle at the inlet end, an outlet baffle at the outlet end, and an explosion-proof water-stopping element between the inlet baffle and the outlet baffle. The inlet baffle is configured to block the explosion-proof water-stopping element without affecting the flow of water. The outlet baffle is configured to block the explosion-proof water-stopping element and has a through-hole for water flow. The explosion-proof water-stopping hole and the explosion-proof water-stopping element are configured such that the explosion-proof water-stopping hole can be blocked by the movable explosion-proof water-stopping element, thereby blocking the water flow. Alternatively, the explosion-proof water-stop valve body also includes an outlet baffle at the outlet end and an explosion-proof water-stopping element between the inlet end and the outlet baffle. The outlet baffle is configured to block the explosion-proof water-stopping element and has a through-hole for water flow. The explosion-proof water-stopping hole and the explosion-proof water-stopping element are configured such that the explosion-proof water-stopping hole can be blocked by the movable explosion-proof water-stopping element, thereby blocking the water flow.

[0008] The advance section is a stepped surface structure formed on the inner wall of the valve housing; or, the advance section is an integrally formed hollow blocking structure piece inside the valve housing; or, the advance section is an independent component connected to the valve housing by a connecting structure, with its end face used to block the explosion-proof water-stopping component; or, the advance section is an independent component connected to the valve housing by a connecting structure, with a hollow blocking structure piece formed thereon to block the explosion-proof water-stopping component; and / or, the exit section is a stepped surface structure formed on the inner wall of the valve housing, with the water flow channel corresponding to the section of the exit section forming the explosion-proof water-stopping hole adapted to be sealed by the movable explosion-proof water-stopping component; or, the exit section is an independent component connected to the valve housing by a connecting structure; or, the exit section is an independent component connected to the valve housing by a connecting structure with a leak-proof sealing structure between them.

[0009] The inlet section is provided with a mating operation structure on the side facing the same direction as the water inlet end for connecting with the installation tool; or, the outlet section is provided with a mating operation structure on the side facing the same direction as the water outlet end for connecting with the installation tool.

[0010] The explosion-proof water-stopping component includes an elastic element and a movable element. One end of the elastic element abuts against the outlet portion, and the other end abuts against the movable element. The elastic element elastically pushes the movable element against the inlet portion. The movable element is provided with a sealing portion that can block the explosion-proof water-stopping hole. Alternatively, the explosion-proof water-stopping component includes an elastic element and a movable element. One end of the elastic element is fixedly connected to the outlet portion, and the other end is fixedly connected to the movable element. The movable element is provided with a sealing portion that can block the explosion-proof water-stopping hole.

[0011] The connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with an internal thread or an external thread for a mating connection structure; or, the connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with a retaining ring or a retaining groove for a mating connection structure.

[0012] The valve body or connecting pipe is provided with a locking connection structure for use and a positioning installation structure for use and positioning installation, and / or, the valve body or connecting pipe is provided with a sealing structure for achieving a leak-proof seal between the water supply and outlet control valve and the water supply connection during use.

[0013] The locking connection structure is provided on the valve body or the connecting pipe with a locking connection section, and the locking connection section is provided with external threads or with a retaining ring or a retaining groove.

[0014] The positioning and mounting structure is provided with a positioning edge on the valve body or connecting pipe.

[0015] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The above structural configuration, by adding a connecting pipe, allows it to pass through the inlet or outlet pipe of the outlet control valve and extend to connect with the inlet or outlet end of the valve core, which is free from or has reduced metal contamination. Furthermore, it is a leak-proof and sealed connection. Thus, the explosion-proof stop valve body and the connecting pipe can be made of metal materials that do not precipitate metal or food-grade plastic materials. This ensures that the inlet and outlet water do not come into contact with the outer shell of the outlet control valve, thereby achieving the purpose of connecting the water flow channels with reduced metal contamination.

[0016] The aforementioned structural design is simple, facilitating component manufacturing and assembly; the overall structure is stable and can be used stably for extended periods, unlikely to affect normal explosion-proof and water-stopping functions, achieving effective and reliable explosion-proof and water-stopping capabilities; the overall structure also facilitates the inspection, cleaning, and maintenance of water outlet control valves used in certain scenarios; the structural design simplifies the leak-proof sealing, eliminating the need for Teflon tape wrapping, achieving effective and reliable leak-proof sealing; component processing reduces the use of large materials, allowing smaller components to be processed using smaller materials, thus lowering production material costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first structure of an explosion-proof stop valve stem that reduces the flow of polluted water, which is related to this utility model.

[0018] Figure 2 This is a schematic diagram of the second structure of an explosion-proof stop valve stem that reduces the flow of polluted water, which is related to this utility model.

[0019] Figure 3 This is a schematic diagram of the third structure of an explosion-proof stop valve stem that reduces the flow of polluted water, which is related to this utility model.

[0020] In the picture:

[0021] Water outlet control valve 10; water inlet pipe section 20; water outlet pipe section 30;

[0022] Explosion-proof water stop valve body 1; inlet end 11; outlet end 12; valve body 13; mounting cavity 14;

[0023] Connector 2; Connection end 21; Dating end 22;

[0024] Explosion-proof waterstop 4; elastic component 41; movable component 42; sealing part 421;

[0025] 5. Inlet section; 6. Outlet section; 61. Explosion-proof water-stop hole. Detailed Implementation

[0026] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0027] This embodiment discloses an explosion-proof stop valve stem that reduces the flow of polluted water, such as... Figure 1 , Figure 2 and Figure 3 As shown, this is a product of the water outlet control valve 10 applied to angle valves. This embodiment can also be applied to kitchen sink faucets and other water outlet control valves with high hygiene and safety standards for water quality. This structure can be installed in the inlet pipe 20, the outlet pipe 30, or even both. For products made of ordinary materials or with ordinary prices, it is advisable to install it in both the inlet pipe 20 and the outlet pipe 30 to improve water quality. In this embodiment and its accompanying drawings, the specific structure is described using a structure where it is installed solely in the inlet pipe 1. The structure with both locations is basically the same as the single-location structure. The dual-location configuration improves the effectiveness and reliability of the application for explosion-proof and water-stopping functions, and is particularly suitable for water outlet control valve applications in some special water bodies. The principle is the same, so specific illustrations are not provided here. The specific structural configuration of this embodiment is described below with reference to the accompanying drawings.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the explosion-proof stop valve body 1 includes a water flow channel with an inlet end 11 and an outlet end 12, and a connecting pipe 2 connected to the explosion-proof stop valve body 1. One end of the connecting pipe 2 is a connecting end 21 that connects to the outlet end of the explosion-proof stop valve body 1 and communicates with the internal water flow channel, and the other end is a docking end 22. In use, as shown in the figure, the connecting pipe 2 is inserted into the inlet pipe section 20 or the outlet pipe section 20 of the outlet control valve 10, and the docking end 22 extends into the inlet port section or the outlet port section of the valve core 40 inside the outlet control valve 10 (e.g., ...). Figure 1 and Figure 2 (as shown) or near the inlet port or outlet port of the valve core 40 (such as...) Figure 3 As shown, the connection is sealed by achieving a leak-proof seal, so that the water flow can avoid or greatly reduce contact with the outer shell of the outlet control valve 10, that is, it can prevent the precipitated substances from contaminating the water flow.

[0029] In this embodiment, the explosion-proof water-stop valve body 1 includes a valve housing 13. The connecting pipe 2 and the valve housing 13 are integrally molded structural components. The integral molding structure reduces assembly, has high structural strength, and prevents leakage and bursting at the assembly connection. However, depending on production needs, the connecting pipe 2 can also be an independent component, manufactured independently, and then fixedly connected to the valve housing 13 through a connecting structure with a leak-proof sealing structure between them. This structural design is beneficial for the use and assembly of connecting pipes of different lengths, and has the advantage of product production convenience. The specific structure can be selected according to product requirements. In this embodiment, the integral molding structure and illustrations are used to describe other specific structural designs below.

[0030] An installation cavity 14 is formed between the inlet end 11 and the outlet end 12 inside the valve housing 1. The explosion-proof water-stop valve body 1 also includes an inlet baffle 5 disposed at the inlet end 11, an outlet baffle 6 disposed at the outlet end 12, and an explosion-proof water-stopping component 4 disposed between the inlet baffle 5 and the outlet baffle 6. The explosion-proof water-stopping component 4 includes an elastic component 41 and a movable component 42. The elastic component 41 can push the movable component 42 to compress the elastic component 41 under the pressure of the instantaneous water pressure change such as burst water discharge, so as to play a role in blocking water in the valve housing 1, thereby achieving the above-mentioned explosion-proof water-stopping effect. The specific structure is described in detail below. The advancing part 5 is configured to block the explosion-proof water-stopping component 4 without affecting the flow of water. The exiting part 6 is configured to block the explosion-proof water-stopping component 4 and has a through explosion-proof water-stopping hole 61 communicating with the water flow channel. The explosion-proof water-stopping hole 61 and the explosion-proof water-stopping component 4 are configured such that the explosion-proof water-stopping hole 61 can be blocked by the movable explosion-proof water-stopping component 4, thereby blocking the water flow channel. Specifically, as shown in the figure, the elastic component 41 is a conical spring, one end of which abuts against the exiting part 6, and the other end of which abuts against the movable component 42. The elastic component 41 elastically pushes the movable component 42 against the advancing part 5. The movable component 5 is provided with a blocking part 421 that can block the explosion-proof water-stopping hole 61. The spring, with its larger diameter end, abuts against the edge of the explosion-proof water-stop hole 61. The sealing part 421 is formed by the movable part 42 protruding towards the explosion-proof water-stop hole 61. The smaller diameter end of the spring is sleeved on the sealing part 421. The sealing part 421 has a sealing guide structure to facilitate quick and accurate sealing of the explosion-proof water-stop hole 61 during movement. Thus, by selecting a suitable spring with an elastic coefficient that can be compressed when the water pressure abnormally increases, the movable block 42 can be pushed to compress the spring when the water pressure abnormally increases (for example, the normal flowing water pressure in household water pipes does not exceed 0.5 MPa; in cases where faucets, angle valves, hoses, etc., burst, the pressure will be reduced). At this time, the water pressure will exceed 0.5 MPa. The spring can be selected with a water pressure greater than 0.5 MPa (the elastic coefficient of the compressed spring can be exceeded), so that the sealing part 421 is pushed towards the explosion-proof water-stop hole 61 and blocks the explosion-proof water-stop hole 61, thereby achieving immediate water stop during explosion. It can also keep the explosion-proof water-stop hole 61 blocked until the problem of abnormal water pressure is dealt with, thereby achieving the above-mentioned objective effect of this utility model. After the abnormal water pressure is relieved, the pressure that pushes the compression of the explosion-proof water-stop part 4 disappears. Under the action of the elastic tension of the spring, the movable block 42 automatically resets, the explosion-proof water-stop hole 61 is unblocked, the water flow channel at the explosion-proof water-stop section 4 is restored to flowability, the water pressure in the channel is in a normal state, and the explosion-proof water-stop section 3 is in a normal state.

[0031] Furthermore, the various structural designs disclosed below can significantly improve the ease of component manufacturing, assembly, stability, and reliable use. The advance section 5 is a stepped surface structure formed on the inner wall of the valve housing 13, or it can be an integrally formed hollow blocking structure within the valve housing 13. This structural design is particularly suitable for installation on the outlet pipe 2, facilitating the integral forming of the advance section 5 onto the valve housing 13. This one-piece structure can effectively and stably block the movable part 42 of the explosion-proof water-stopping component 4. Its hollow structure allows for normal water flow, and the movable part 42 does not obstruct all the hollow portions of the advance section 5, thus allowing normal passage. The stepped surface structure of the advance section 5 is directly formed by different diameter sections on the inner wall of the valve housing 13, resulting in a simple structure that achieves the same advancing effect.

[0032] like Figure 1 , Figure 2 or Figure 3 As shown, the advance section 5 is an independent component, manufactured separately from the valve housing 13. It is connected to the valve housing 13 via a connecting structure. It can be a cylindrical tube. The connecting structure is provided with corresponding connecting sections on the inner wall of the mounting cavity 31. The two corresponding connecting sections are provided with internal and external threads to achieve a fixed connection. Alternatively, the two corresponding connecting sections can be provided with a retaining ring or a retaining groove for a matching connection structure (the connecting structure of the independent component of the exit section 6 below can adopt the same structure as here, which will not be described below). The inner end face of the advance section 5 is used to block the explosion-proof water-stopping component 4, or the advance section 5 is formed with a hollow blocking structure as described above to block the explosion-proof water-stopping component 4. This structure is particularly suitable for installation in the water inlet pipe, which is convenient for the assembly of this part.

[0033] The aforementioned stop 6 can be as follows: Figure 1-3The stepped surface structure formed on the inner wall of the valve housing 13 corresponds to the water inlet or outlet channel of the section of the outlet portion 6, forming an explosion-proof water-stop hole 61 that can be sealed by the movable explosion-proof water-stopping component 4. This is directly formed by the different diameters of different sections of the inner wall of the valve housing 13, resulting in a simple structure that is particularly suitable for installation in the water inlet pipe section, facilitating assembly of this part. Alternatively, the outlet portion 6 can be an independent component connected to the valve housing 13 via a connecting structure, which is particularly suitable for installation in the water outlet pipe section, facilitating assembly of this part. The connecting structure can refer to the above-mentioned connecting structure application. It is important to note that the outlet baffle 6 is designed to work with the explosion-proof water-stopping component 4 to achieve a water-stopping effect. Therefore, this part requires a leak-proof structure. If the outlet baffle 6 is an independent component, it can have a leak-proof sealing structure between itself and the valve body 13. Commonly, a sealing ring can be used to achieve a seal before connection, and the sealing structure is stable. Alternatively, it can be installed at the water outlet pipe. Usually, the water outlet pipe has a water-receiving connection structure (threaded structure) for connecting to the water supply connector. The outer end face of the outlet baffle 6 can be flush with the outer end face of the water-receiving connection structure. When connected in this way, a sealing ring can be placed on this end face to cover the connection gap between the two, thus achieving a leak-proof effect. The structure is simple. It should be noted that the aforementioned inlet baffle 5, which is an independent component, can also have a leak-proof structure added to its connection structure. However, this end usually already has a sealing structure with a water-receiving connection structure, so it is not necessary to further seal the connection between the inlet baffle 5 and the valve body 13 at this end.

[0034] The valve housing 13 described in this utility model can be mainly located within or in the water inlet pipe section. Where installation space permits, it can also be located outside or in the water inlet pipe section, meaning the valve housing 13 extends entirely or partially beyond the outer end of the water connection structure. Figure 2 and Figure 3 To extend beyond the outer end of the water connection structure, such as Figure 1 The portion extends beyond the outer end of the water-connecting structure; alternatively, the valve housing 13 may not extend beyond the outer end of the water-connecting structure. As mentioned above, this end typically has a sealing structure for the water-connecting structure. In this embodiment, for example... Figures 1-3 The structure of the inlet section 5 is such that a leak-proof sealing structure is provided at the outer end of the water inlet pipe section and the water supply connection structure to prevent leakage between the water supply connection and the water supply connector. As shown in the figure, an annular positioning groove is formed on the outer wall of the valve body 13 (which can be set close to the connecting pipe 2 or as shown in the figure). Figure 1A sealing gasket is embedded in the annular positioning groove (located near the water inlet end, or possibly on the part of the connecting pipe 2). This sealing gasket allows for installation at this part without the need for wrapping with Teflon tape, ensuring a tight seal and reliable sealing during installation and use. For structures where the outer end face of the inlet portion 5 or outlet portion 6 of the valve body 13 is flush with the outer end face of the water connection structure, sealing can be achieved through other sealing gasket structures. For example, in the outlet pipe, it is usually connected to one end of a hose or to a washing machine connecting pipe. Such connectors typically contain sealing gaskets, which achieve a seal at the water outlet. Thus, the valve body 13 or connecting pipe 2 is equipped with a sealing structure to prevent leakage between the water outlet control valve and the water supply connection during use.

[0035] In addition, to facilitate the assembly and locking of the aforementioned independent components, the inlet / outlet portion 5 is provided with a mating operation structure on the side facing the inlet end for connection with an installation tool, and the outlet / outlet portion 6 is provided with a mating operation structure on the side facing the outlet end for connection with an installation tool. This mating operation structure is as follows: Figure 1 The infeed portion 5 or the outfeed portion 6 shown has an inner polygonal countersunk hole on its outward side, which allows an internal hexagonal tool to be inserted and restricted in a directional manner, so that the infeed portion 5 or the outfeed portion 6 can be locked by rotating the internal hexagonal tool.

[0036] The explosion-proof stop valve stem with the above-mentioned structure, which reduces the flow of polluted water, can be directly embedded during use. The valve body or connecting pipe is provided with a positioning and installation structure for positioning and installation (such as a positioning edge on the valve body or connecting pipe). Before installation, in order to further improve the integrity of the finished product, a locking connection structure for locking the valve body 13 or connecting pipe 2 to the inlet or outlet pipe can also be provided. A conventional locking connection structure can be adopted, in which the valve body 13 or connecting pipe 2 is provided with a locking connection section, and the locking connection section is provided with an external thread, or the locking connection section is provided with a retaining ring or a retaining groove. The figure shows the structure of the external thread.

[0037] The advance section 5 disclosed in the above-mentioned structures can also be omitted depending on the design structure. In the structure without the advance section 5, the explosion-proof water-stopping component 4 can be fixedly connected to the exit section 6 by one end of the elastic component 41 and the other end is connected to the movable component 42. In this way, the movable component 42 can be directly connected to the exit section 6 through the elastic component 41, and the same effect as described above can be achieved. Here, the various structural embodiments will not be described in detail as described above, so as not to affect the clear understanding of those skilled in the art.

[0038] 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. An explosion-proof stop valve stem for reducing the flow of polluted water, characterized in that, The device includes an explosion-proof stop valve body with water flow channels at an inlet and an outlet, and a connecting pipe for connecting the explosion-proof stop valve body. One end of the connecting pipe is a connection end that connects to the outlet end of the explosion-proof stop valve body and communicates with the internal water flow channels, and the other end is a mating end for achieving a leak-proof seal. The explosion-proof stop valve body includes a valve housing. The connecting pipe and the valve housing are integrally formed structural components, or the connecting pipe is an independent component that is fixedly connected together by a connecting structure and has a leak-proof sealing structure between them.

2. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 1, characterized in that, An installation cavity is formed between the inlet and outlet ends within the valve housing. The explosion-proof water-stop valve body also includes an inlet baffle at the inlet end, an outlet baffle at the outlet end, and an explosion-proof water-stopping element between the inlet baffle and the outlet baffle. The inlet baffle is configured to block the explosion-proof water-stopping element without affecting the flow of water. The outlet baffle is configured to block the explosion-proof water-stopping element and has a through-hole for water flow. The explosion-proof water-stopping hole and the explosion-proof water-stopping element are configured such that the explosion-proof water-stopping hole can be blocked by the movable explosion-proof water-stopping element, thereby blocking the water flow. Alternatively, the explosion-proof water-stop valve body also includes an outlet baffle at the outlet end and an explosion-proof water-stopping element between the inlet end and the outlet baffle. The outlet baffle is configured to block the explosion-proof water-stopping element and has a through-hole for water flow. The explosion-proof water-stopping hole and the explosion-proof water-stopping element are configured such that the explosion-proof water-stopping hole can be blocked by the movable explosion-proof water-stopping element, thereby blocking the water flow.

3. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 2, characterized in that, The advance section is a stepped surface structure formed on the inner wall of the valve housing; or, the advance section is an integrally formed hollow blocking structure piece inside the valve housing; or, the advance section is an independent component connected to the valve housing by a connecting structure, and its end face is used to block the explosion-proof water-stopping component; or, the advance section is an independent component connected to the valve housing by a connecting structure, and it is formed with a hollow blocking structure piece to block the explosion-proof water-stopping component. And / or, the outlet section is a stepped surface structure formed on the inner wall of the valve body, and the water flow channel corresponding to the outlet section forms the explosion-proof water-stop hole adapted to be sealed by the movable explosion-proof water-stop component; or, the outlet section is an independent component connected to the valve body through a connecting structure; or, the outlet section is an independent component connected to the valve body through a connecting structure and a leak-proof sealing structure is provided between them.

4. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 3, characterized in that, The advancing part is provided with a mating operation structure on the side facing the same direction as the water inlet end for connecting with the installation tool. Alternatively, the side of the outlet portion facing the same direction as the water outlet end is provided with a mating operation structure for connecting and operating with installation tools.

5. The explosion-proof stop valve stem for reducing the flow of polluted water as described in any one of claims 2-4, characterized in that, The explosion-proof water-stopping component includes an elastic element and a movable element. One end of the elastic element abuts against the outlet portion, and the other end abuts against the movable element. The elastic element elastically pushes the movable element against the inlet portion. The movable element is provided with a sealing portion that can block the explosion-proof water-stopping hole. Alternatively, the explosion-proof water-stopping component includes an elastic element and a movable element. One end of the elastic element is fixedly connected to the outlet portion, and the other end is fixedly connected to the movable element. The movable element is provided with a sealing portion that can block the explosion-proof water-stopping hole.

6. The explosion-proof stop valve stem for reducing the flow of polluted water as described in any one of claims 1-4, characterized in that, The connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with an internal thread or an external thread for a mating connection structure; or, the connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with a retaining ring or a retaining groove for a mating connection structure.

7. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 5, characterized in that, The connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with an internal thread or an external thread for a mating connection structure; or, the connection structure is that the valve body and the inlet or outlet part are provided with a connecting section, and the connecting section is provided with a retaining ring or a retaining groove for a mating connection structure.

8. The explosion-proof stop valve stem for reducing the flow of polluted water as described in any one of claims 1-4, characterized in that, The valve body or connecting pipe is provided with a locking connection structure for use and installation locking, and / or the valve body or connecting pipe is provided with a sealing structure for achieving a leak-proof seal between the water supply control valve and the water supply connection during use. The locking connection structure is provided on the valve body or the connecting pipe with a locking connection section, and the locking connection section is provided with external threads or with a retaining ring or a retaining groove.

9. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 5, characterized in that, The valve body or connecting pipe is provided with a locking connection structure for use and installation locking, and / or the valve body or connecting pipe is provided with a sealing structure for achieving a leak-proof seal between the water supply control valve and the water supply connection during use. The locking connection structure is provided on the valve body or the connecting pipe with a locking connection section, and the locking connection section is provided with external threads or with a retaining ring or a retaining groove.

10. The explosion-proof stop valve stem for reducing the flow of polluted water as described in claim 6, characterized in that, The valve body or connecting pipe is provided with a locking connection structure for use and a positioning installation structure for use and positioning installation, and / or, the valve body or connecting pipe is provided with a sealing structure for achieving a leak-proof seal between the water supply and outlet control valve and the water supply connection during use. The locking connection structure is provided with a locking connection section on the valve body or the connecting pipe, and the locking connection section is provided with external threads or with a retaining ring or a retaining groove. The positioning and mounting structure is provided with a positioning edge on the valve body or connecting pipe.

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