Front check type stop valve of water meter

Abstract

The utility model relates to the field of valves, and particularly discloses a front check type stop valve of a water meter, which comprises a valve body, a first connecting port is arranged above one end of the valve body, a first connecting cover is arranged above the first connecting port, a valve rod is arranged above the first connecting cover, and the lower end of the valve rod penetrates through the first connecting cover to be connected with a valve plate. A second connecting opening is formed in the lower portion of the other end of the valve body, a water meter is installed below the second connecting opening, and a metering impeller is installed on the water meter and located in the valve body. The water meter and the valve body are designed into a whole, so that the length of a pipeline occupied by the valve body and a water body can be reduced, the water meter can be installed in a short pipeline, and the installation condition is wider. By designing the baffle and the second through hole, when the valve plate closes the first through hole to cut off water flow, the second through hole is cut off through the baffle, and therefore the situation that water flow in the valve body flows back, rotation of the metering impeller is affected, and the data accuracy of the water meter is affected can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve field, concretely relates to a water meter preposition check valve. BACKGROUND

[0002] It is a common water supply system design mode to preposition the water meter in front of the check valve to monitor water consumption, which can effectively monitor water consumption and prevent the water meter from being abnormal due to pressure fluctuation or backflow.

[0003] In the existing pipeline valve installation mode, the water meter and the valve body are independently installed, and the water meter and the valve body both need to occupy the pipeline length, so when the pipeline length is limited, the water meter and the valve cannot be installed at the same time. Therefore, the water meter preposition check valve is provided by the person skilled in the art to solve the problems in the above background art. SUMMARY

[0004] To solve the above technical problems, the utility model provides a water meter preposition check valve, which comprises a valve body, a connecting port one is formed in the upper end of the valve body, a connecting cover one is installed above the connecting port one, a valve rod is installed above the connecting cover one, a valve plate is connected to the lower end of the valve rod through the connecting cover one, a connecting port two is formed in the lower end of the other end of the valve body, a water meter is installed below the connecting port two, a metering impeller is installed on the water meter, and the metering impeller is located in the valve body.

[0005] A partition plate is fixedly connected in the valve body, a through hole one is formed in the partition plate, the through hole one is located below the valve plate, an isolation plate one and an isolation plate two are fixedly connected below the partition plate in the valve body, the isolation plate one and the isolation plate two are located on the two sides of the metering impeller, a through hole two is formed in the isolation plate one and the isolation plate two, a connecting rod is fixedly connected below the valve plate, a baffle is fixedly connected below the connecting rod, and the baffle is located above one side of the through hole two.

[0006] Preferably, the valve body is provided with a water inlet at one end and a water outlet at the other end, the water inlet is close to the connecting port two, and the water outlet is close to the connecting port one.

[0007] Preferably, the space below the partition plate is communicated with the water inlet, and the space above the partition plate is communicated with the water outlet.

[0008] Preferably, the connecting cover one is fixedly connected with a support above, and the valve rod is threadedly connected with the support through the support.

[0009] Preferably, the valve rod is fixedly connected with a hand wheel above.

[0010] Preferably, the distance between the valve plate and the through hole one is greater than the distance between the baffle and the through hole two.

[0011] The utility model discloses the technical effect and advantage:

[0012] 1. The utility model discloses a valve body and water meter are designed integrally, thereby can reduce the length of pipeline that valve body and water body occupy, thereby can install pipeline shorter pipeline, and installation condition is more extensive.

[0013] 2. The utility model discloses a valve plate is cut off in closing through -hole no. 1 water flow, first through baffle through -hole no. 2 is cut off, thereby can avoid the influence of valve body internal water flow backflow and influence the rotation of metering impeller, thereby influence water meter data accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structural schematic diagram provided by the application;

[0015] Fig. 2 It is the structural schematic diagram of the valve body inside provided by the application;

[0016] Fig. 3 It is the structural schematic diagram of baffle provided by the application;

[0017] In the drawing:

[0018] 1, valve body;2, connecting mouth no. 1;3, connecting cover no. 1;4, valve rod;5, connecting mouth no. 2;6, water meter;7, water inlet;8, water outlet;9, baffle;10, valve plate;11, through -hole no. 1;12, isolation plate no. 1;13, isolation plate no. 2;14, metering impeller;15, through -hole no. 2;16, connecting rod;17, baffle. DETAILED DESCRIPTION

[0019] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0020] In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0021] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "set", "sleeve / joint", "connect" and the like should be understood broadly, for example, "connect", can be fixedly connected, also can be detachably connected, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] Please refer to Figs. 1-3 In the embodiment, a water meter pre-check valve is provided, comprising a valve body 1, a connecting port one 2 is formed on the upper end of the valve body 1, a connecting cover one 3 is installed on the upper side of the connecting port one 2, a valve rod 4 is installed on the upper side of the connecting cover one 3, a valve plate 10 is connected to the lower end of the valve rod 4 through the connecting cover one 3, a connecting port two 5 is formed on the lower end of the other end of the valve body 1, a water meter 6 is installed on the lower side of the connecting port two 5, a metering impeller 14 is installed on the water meter 6, and the metering impeller 14 is located inside the valve body 1.

[0023] A partition plate 9 is fixedly connected inside the valve body 1, a through hole one 11 is formed on the partition plate 9, the through hole one 11 is located below the valve plate 10, an isolation plate one 12 and an isolation plate two 13 are fixedly connected below the partition plate 9 inside the valve body 1, the isolation plate one 12 and the isolation plate two 13 are located on both sides of the metering impeller 14, a through hole two 15 is formed on the isolation plate one 12 and the isolation plate two 13, a connecting rod 16 is fixedly connected below the valve plate 10, a baffle 17 is fixedly connected below the connecting rod 16, and the baffle 17 is located above one side of the through hole two 15. The valve plate 10 is lowered by the descending valve rod 4, the baffle 17 is lowered by the connecting rod 16 driven by the descending valve plate 10, the baffle 17 is first blocked in the through hole two 15, and the valve plate 10 is gradually inserted into the through hole one 11 to block the through hole one 11 when the baffle 17 blocks the through hole two 15.

[0024] In the embodiment, specifically, the valve body 1 is provided with a water inlet 7 at one end, and a water outlet 8 at the other end, the water inlet 7 is close to the connecting port two 5, and the water outlet 8 is close to the connecting port one 2.

[0025] In the embodiment, specifically, the space below the partition plate 9 is communicated with the water inlet 7, and the space above the partition plate 9 is communicated with the water outlet 8. The water flow first passes through the water inlet 7 below, first passes through the through hole two 15 on the isolation plate one 12 to drive the metering impeller 14 to rotate, then passes through the through hole two 15 on the isolation plate two 13, then passes through the through hole one 11, and then flows out through the water outlet 8.

[0026] In the embodiment, specifically, a bracket is fixedly connected above the connecting cover one 3, and the valve rod 4 is threadedly connected with the bracket by penetrating through the bracket.

[0027] In the embodiment, the valve rod 4 is fixedly connected with a hand wheel.

[0028] In the embodiment, the distance between the valve plate 10 and the through hole one 11 is greater than the distance between the baffle 17 and the through hole two 15, so that the baffle 17 first blocks the through hole two 15.

[0029] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A pre-stoppered check valve for a water meter comprising a valve body (1), characterized in that, The valve body (1) one end is provided with a connecting port one (2), the connecting port one (2) is provided with a connecting cover one (3), the connecting cover one (3) is provided with a valve stem (4), the valve stem (4) lower end is connected with a valve plate (10) through the connecting cover one (3), the valve body (1) the other end is provided with a connecting port two (5), the connecting port two (5) is provided with a water meter (6), the water meter (6) is provided with a metering impeller (14), the metering impeller (14) is located in the valve body (1) inside; The valve body (1) is fixedly connected with a partition (9), the partition (9) is provided with a through hole one (11), the through hole one (11) is located below the valve plate (10), the valve body (1) is fixedly connected with a isolation plate one (12) and a isolation plate two (13) below the partition (9), the isolation plate one (12) and the isolation plate two (13) are located on both sides of the metering impeller (14), the isolation plate one (12) and the isolation plate two (13) are provided with a through hole two (15), the valve plate (10) is fixedly connected with a connecting rod (16), the connecting rod (16) is fixedly connected with a baffle (17), the baffle (17) is located above one side of the through hole two (15).

2. A pre- check valve for water meters according to claim 1, characterized in that, The valve body (1) one end is provided with a water inlet (7), the valve body (1) the other end is provided with a water outlet (8), the water inlet (7) is close to the connecting port two (5), the water outlet (8) is close to the connecting port one (2).

3. A pre- check valve for water meters according to claim 2, characterized in that, The space below the partition (9) is communicated with the water inlet (7), the space above the partition (9) is communicated with the water outlet (8).

4. A pre- check valve for water meters according to claim 1, characterized in that, The connecting cover one (3) is fixedly connected with a support, the valve stem (4) passes through the support and is threadedly connected with the support.

5. A pre- check valve for water meters according to claim 1, characterized in that, The valve stem (4) is fixedly connected with a hand wheel.

6. A pre- check valve for water meters according to claim 1, characterized in that, The distance between the valve plate (10) and the through hole one (11) is greater than the distance between the baffle (17) and the through hole two (15).

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