Urban gas indoor pipeline water stop valve

Abstract

The utility model relates to an urban gas indoor pipeline water stop valve, which belongs to the technical field of gas valves, and comprises a valve body and a water stop assembly, the water stop assembly is positioned in the valve body, the water stop assembly comprises a water stop groove and a water stop plate, the water stop groove is fixedly connected with the inner wall of the valve body, the water stop groove is provided with a through hole, and the water stop plate is fixedly connected with the valve body. One end of the water stop plate is hinged to the water stop groove and seals or opens the through hole, and the purpose is to avoid the situation that a worker connects a pipeline by mistake, and consequently water inlet blockage of a gas pipe network and damage to a gas pipeline and equipment are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a water stop valve for an indoor urban gas pipeline. Background Art

[0002] With the rapid development of urban gas, the urban gasification rate is getting higher and higher. Water heaters are essential gas appliances for every family. After renovation, gas users need to connect the gas pipelines of water heaters and stoves to the pipelines entering the house behind the gas meter. There are three interfaces under the gas water heater, namely the cold water inlet connection port, the hot water outlet connection port, and the gas inlet connection port.

[0003] However, when installing the water heater, the installer may easily connect the wrong pipes, and connect the gas pipe that should be connected to the gas inlet connection port to the hot water outlet connection port. Once connected incorrectly, when the user opens the water inlet pipe valve and cold water enters the water heater, the water heater inlet valve opens, and the cold water flows in the water heater and does not enter the hot water outlet connection port, but enters the gas inlet connection port connected to the gas meter. In this way, the water flows along the gas pipe into the gas pipeline and gas meter, which will not only cause the gas meter, low-pressure gas pipeline or community gas pipeline network to be blocked, but the water entering the gas pipeline is difficult to completely remove, which is easy to cause damage to the equipment in the gas pipeline and corrosion, perforation and leakage of the inner wall of the gas pipeline, which seriously affects the life and production of gas users, and also causes economic losses to enterprises and the country.

[0004] Therefore, a city gas indoor pipeline water stop valve is provided to solve the problems raised in the above background technology. Utility Model Content

[0005] The technical problem solved by the utility model is to prevent workers from connecting the wrong pipelines, thereby causing water blockage in the gas pipeline network and damage to the gas pipeline and equipment.

[0006] The utility model provides a technical solution to the above-mentioned technical problems as follows: a city gas indoor pipeline water stop valve, comprising a valve body and a water stop assembly, the water stop assembly being located within the valve body, the water stop assembly comprising a water stop groove and a water stop plate, the water stop groove being fixedly connected to the inner wall of the valve body, the water stop groove having a through hole, one end of the water stop plate being hinged to the water stop groove and closing or opening the through hole.

[0007] The beneficial effect of the utility model is that the staff installs the water stop assembly in the valve body by tools. When the staff connects the gas pipe to the hot water outlet connection port by mistake, the water stop plate in the water stop groove can block the water from flowing into the gas pipeline through the through hole, thereby avoiding water blockage in the gas pipeline network and damage to the gas pipeline and equipment, ensuring the life and production of gas users.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the water stop assembly also includes a rotating shaft and a torsion spring. The rotating shaft is fixedly connected to one end of the water stop plate, the rotating shaft is hinged to the water stop groove, the torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are respectively abutted against the water stop plate and the water stop groove.

[0010] The beneficial effect of adopting the above further solution is that the torsion spring can make the water stop plate always close the through hole when not subject to external force.

[0011] Furthermore, the valve body is provided with an internal thread, the outer wall of the water stop groove is provided with an external thread matching the internal thread, and the water stop groove is threadedly connected to the valve body.

[0012] The beneficial effect of adopting the above further solution is that the water stop groove is threadedly connected to the valve body, which is convenient for workers to install.

[0013] Furthermore, it also includes a first sealing ring. The inner wall of the valve body has an inner boss extending radially inward, and the first sealing ring is clamped between the end face of the inner boss and the end face of the water stop groove.

[0014] The beneficial effect of adopting the above further solution is that the first sealing ring can abut against the end surface of the open end of the water stop groove, thereby increasing the sealing performance of the abutment between the water stop groove and the valve body.

[0015] Furthermore, a second sealing ring is provided on one side of the water stop plate facing the through hole, and a diameter of the second sealing ring is larger than a diameter of an end of the through hole facing the water stop plate.

[0016] The beneficial effect of adopting the above further solution is that the second sealing ring can improve the sealing performance when the water stop plate and the through hole are closed.

[0017] Furthermore, a third sealing ring is provided on a side of the water stop groove facing the water stop plate, and a diameter of the third sealing ring is smaller than a diameter of the second sealing ring.

[0018] The beneficial effect of adopting the above further solution is that the second sealing ring and the third sealing ring form a double sealing ring to prevent water from flowing into the gas pipeline through the through hole.

[0019] Furthermore, the water stop plate is a circular plate.

[0020] Furthermore, the through hole is a truncated cone-shaped hole.

[0021] Furthermore, the diameter of the water stop plate is larger than the diameter of the through hole.

[0022] The beneficial effect of adopting the above further solution is that the water stop plate can completely close the through hole to prevent water from flowing into the gas pipeline through the through hole.

[0023] Furthermore, the water stop plate is made of stainless steel, copper or plastic.

[0024] The beneficial effect of adopting the above further solution is: increasing the service life of the water stop plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of a water stop valve for indoor city gas pipelines of the utility model;

[0026] Figure 2 It is a cross-sectional view of the water stop groove of the utility model;

[0027] Figure 3 This is a bottom view of the water stop groove of the utility model;

[0028] Figure 4 It is a top view of the water stop groove of the utility model;

[0029] Figure 5 It is a schematic diagram of the utility model when in use.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Valve body; 101. Internal thread; 102. First sealing ring; 2. Water stop assembly; 201. Water stop groove; 202. Water stop plate; 203. External thread; 204. Second sealing ring; 205. Third sealing ring; 3. Through hole; 4. Connecting hose; 5. Installation port. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1-Figure 5 As shown, this embodiment provides a city gas indoor pipeline water stop valve, including a valve body 1 and a water stop assembly 2, the water stop assembly 2 is located in the valve body 1, the water stop assembly 2 includes a water stop groove 201 and a water stop plate 202, the water stop groove 201 is fixedly connected to the inner wall of the valve body 1, the water stop groove 201 has a through hole 3, one end of the water stop plate 202 is hinged to the water stop groove 201, and closes or opens the through hole 3.

[0034] The staff uses tools to install the water stop assembly 2 in the valve body 1. When the staff connects the gas pipe to the hot water outlet connection port by mistake, the water stop plate 202 in the water stop groove 201 can block the hot water from flowing into the gas pipeline through the through hole 3, thereby avoiding water blockage in the gas pipeline network and damage to the gas pipeline and equipment, ensuring the life and production of gas users.

[0035] Specifically, the valve body 1 may be a copper inner wire single-mouth valve DN15.

[0036] The length of the inner wall of the valve body 1 is greater than 20 mm, so as to leave space for installing the water stop assembly 2.

[0037] In addition, if Figure 5 As shown, the water stop valve 6 of the present application is installed on the connecting hose 4 at the hot water outlet connection port.

[0038] In addition, the water stop groove 201 is a cylindrical groove with an opening, and the water stop plate 202 is located on the side of the water stop groove 201 facing the interface of the valve body 1.

[0039] On the basis of the above scheme, the water stop assembly 2 also includes a rotating shaft and a torsion spring. The rotating shaft is fixedly connected to one end of the water stop plate 202, the rotating shaft is hinged to the water stop groove 201, and the torsion spring is sleeved on the rotating shaft. The two ends of the torsion spring are respectively abutted against the water stop plate 202 and the water stop groove 201.

[0040] The torsion spring can make the water stop plate 202 always close the through hole 3 without being subjected to external force.

[0041] On the basis of the above solution, the valve body 1 has an internal thread 101 , the outer wall of the water stop groove 201 is provided with an external thread 203 matching the internal thread 101 , and the water stop groove 201 is threadedly connected to the valve body 1 .

[0042] The water stop groove 201 is threadedly connected to the valve body 1, which is convenient for workers to install.

[0043] Alternatively, protrusions may be symmetrically provided on both sides of the water stop groove 201 , and grooves matching the protrusions may be provided on the inner wall of the valve body 1 , so that the water stop groove 201 is snap-fitted with the valve body 1 .

[0044] On the basis of the above scheme, it further includes a first sealing ring 102 . The inner wall of the valve body 1 has an inner boss extending radially inward. The first sealing ring 102 is sandwiched between the end face of the inner boss and the end face of the water stop groove 201 .

[0045] The first sealing ring 102 can abut against the open end surface of the water stop groove 201 to increase the sealing performance between the water stop groove 201 and the valve body 1 .

[0046] Specifically, two installation openings 5 ​​are provided at intervals at the bottom of the water stop groove 201, so that the worker can use the installation tool to rotate the water stop groove 201 clockwise through the installation openings to install the water stop groove 201 in the tail end of the valve body 1, and the open end of the water stop groove 201 abuts against the first sealing ring 102. At the same time, the worker can rotate the water stop groove 201 counterclockwise through the installation tool to remove the water stop groove 201 from the valve body 1, which is simple in design and easy to operate.

[0047] On the basis of the above solution, the side of the water stop plate 202 facing the through hole 3 has a second sealing ring 204 , and the diameter of the second sealing ring 204 is larger than the diameter of the through hole 3 facing the end of the water stop plate 202 .

[0048] The second sealing ring 204 can improve the sealing performance when the water stop plate 202 and the through hole 3 are closed.

[0049] Specifically, when the water stop plate 202 closes the through hole 3 , the second sealing ring 204 is just located outside the edge of the through hole 3 facing one end of the water stop plate 202 .

[0050] The side of the water stop plate 202 facing the through hole 3 has an inner boss extending radially inward, and the second sealing ring 204 is sandwiched between the end face of the inner boss and the end face of the through hole 3 facing one end of the water stop plate 202 .

[0051] On the basis of the above solution, a third sealing ring 205 is provided on the side of the water stop groove 201 facing the water stop plate 202 , and the diameter of the third sealing ring 205 is smaller than the diameter of the second sealing ring 204 .

[0052] The second sealing ring 204 and the third sealing ring 205 form a double sealing ring to prevent water from flowing into the gas pipeline through the through hole 3.

[0053] Specifically, when the water stop plate 202 and the through hole 3 are closed, the second sealing ring 204 is just located between the third sealing ring 205 and the outer side of the edge of the through hole 3 facing the end of the water stop plate 202 .

[0054] The side of the water stop groove 201 facing the water stop plate 202 has an inner boss extending radially inward, and the third sealing ring 205 is sandwiched between the end face of the inner boss and the end face of the water stop plate 202 facing the through hole 3.

[0055] On the basis of the above solution, the water stop plate 202 is a circular plate.

[0056] Specifically, according to actual needs, the water stop plate 202 can be set to a plate of other shapes, such as a square plate or an elliptical plate, as long as it can close the through hole 3.

[0057] In addition, the thickness of the water stop plate 202 can be set according to actual conditions, for example, within the range of 2 mm to 5 mm, so that when the gas in the gas pipeline passes through the through hole 3, the water stop plate 202 can open the through hole 3.

[0058] On the basis of the above solution, the through hole 3 is a truncated cone-shaped hole.

[0059] Specifically, in this embodiment, the upper base radius of the through hole 3 is smaller than the lower base radius.

[0060] On the basis of the above solution, the diameter of the water stop plate 202 is larger than the diameter of the through hole 3 .

[0061] The water stop plate 202 can completely close the through hole 3 to prevent water from flowing through the through hole 3 and into the gas pipeline.

[0062] Based on the above solution, the water stop plate 202 is made of stainless steel, copper or plastic.

[0063] The service life of the water stop plate 202 is improved.

[0064] In this embodiment, when in use, the staff uses a tool to thread the external thread 203 on the inner wall of the water stop groove 201 with the internal thread 101 in the valve body 1, and makes the open end surface of the water stop groove 201 abut against the first sealing ring 102;

[0065] When the staff connects the gas pipe to the hot water outlet port by mistake, the water stop plate 202 in the water stop groove 201 tightly closes the through hole 3 due to the gravity of the water flow, so that the water flow cannot flow into the gas pipe through the through hole 3;

[0066] At the same time, when the staff finds that they have connected the wrong pipeline and reconnects the gas pipe to the gas inlet connection port, the gas flows into the gas pipe and flows to the through hole 3, causing the water stop plate 202 to open the through hole 3, and then the gas flows to the stove and other daily appliances, ensuring the life and production of gas users.

[0067] In the description of the present invention, it is necessary to understand that the terms "thickness", "top", "bottom", "inside", "outside", "axial", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A water stop valve for indoor city gas pipelines, characterized in that: Comprising a valve body (1) and a water stop assembly (2), the water stop assembly (2) being located inside the valve body (1), the water stop assembly (2) comprising a water stop groove (201) and a water stop plate (202), the water stop groove (201) being fixedly connected to the inner wall of the valve body (1), the water stop groove (201) having a through hole (3), and one end of the water stop plate (202) being hinged to the water stop groove (201) and closing or opening the through hole (3); The water stop assembly (2) further comprises a rotating shaft and a torsion spring, the rotating shaft being fixedly connected to one end of the water stop plate (202), the rotating shaft being hinged to the water stop groove (201), the torsion spring being sleeved on the rotating shaft, and the two ends of the torsion spring being respectively in contact with the water stop plate (202) and the water stop groove (201); It also comprises a first sealing ring (102), the inner wall of the valve body (1) has an inner boss extending radially inward, and the first sealing ring (102) is sandwiched between the end surface of the inner boss and the end surface of the water stop groove (201).

2. A city gas indoor pipeline water stop valve according to claim 1, characterized in that: The valve body (1) has an internal thread (101), the outer wall of the water stop groove (201) is provided with an external thread (203) matching the internal thread (101), and the water stop groove (201) is threadedly connected to the valve body (1).

3. A city gas indoor pipeline water stop valve according to claim 1, characterized in that: The side of the water stop plate (202) facing the through hole (3) has a second sealing ring (204), and the diameter of the second sealing ring (204) is greater than the diameter of the end of the through hole (3) facing the water stop plate (202).

4. A city gas indoor pipeline water stop valve according to claim 3, characterized in that: A third sealing ring (205) is provided on the side of the water stop groove (201) facing the water stop plate (202), and the diameter of the third sealing ring (205) is smaller than the diameter of the second sealing ring (204).

5. A city gas indoor pipeline water stop valve according to claim 1, characterized in that: The water stop plate (202) is a circular plate.

6. A city gas indoor pipeline water stop valve according to any one of claims 1 to 5, characterized in that: The through hole (3) is a truncated cone-shaped hole.

7. A city gas indoor pipeline water stop valve according to any one of claims 1 to 5, characterized in that: The diameter of the water stop plate (202) is greater than the diameter of the through hole (3).

8. A city gas indoor pipeline water stop valve according to any one of claims 1 to 5, characterized in that: The water stop plate (202) is made of stainless steel, copper or plastic.

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