CN213512250U - Gate valve with non-return water meter - Google Patents

Abstract

The utility model discloses a gate valve with a non-return water meter, which is a pipeline valve combined with a non-return assembly, the structure of the gate valve is composed of a valve body, a valve cover, a valve rod, a flashboard, an anti-pollution cover, a connecting pipe and the like, the connecting pipe is mainly formed by extending the connecting pipe outwards from the end opening of the valve body, thus, leakage points generated at the connecting part of the connecting pipe can be eliminated, meanwhile, the non-return assembly which can be detachably installed is also arranged in the connecting pipe, the non-return assembly can be positioned and positively installed in the connecting pipe or positioned and reversely installed in the connecting pipe, namely, the non-return assembly is modularly designed, and the non-return; like this, because the nimble switching of quick removable and just, the anti-dress of non return subassembly in the takeover to just can carry out the installation behind the table of water gauge gate valve or install before the table under the condition of not changing the accessory, the water gauge gate valve that even does not have non return subassembly also can use, and mounting means and user mode are fairly nimble, and it is also more convenient to use.

Description

Gate valve with non-return water meter

Technical Field

The utility model relates to a gate valve structure among the pipeline valve gate valve specifically is a take non return water gauge gate valve.

Background

The water meter gate valve is a functional valve which is arranged in a water supply pipeline system and connected with a water meter, can be used for controlling the opening or closing of a household water supply pipeline, is convenient for a user to install or maintain a room, can only be used for stopping media, has single function, and is easy to cause the problems of backwater, water meter inversion and the like during use so as to influence the charging of the water meter. For this reason, some manufacturers just design non return subassembly in the water gauge gate valve, but non return subassembly still need possess certain installation space, and the installation space in the traditional water gauge gate valve is often not enough, so can only connect a takeover at valve body port department, install non return subassembly in the takeover again, though the problem of return water refluence has been solved to such project organization, nevertheless still discover not few problem in the in-service use: firstly, leakage points are increased at the connection points added at the connection pipe; the non-return assemblies in the connecting pipes can only form forward installation or reverse installation, but cannot be switched between forward installation and reverse installation, namely, the non-return assemblies only have one installation direction, so that when the water meter gate valve needs to be switched between pre-meter installation and post-meter installation in certain occasions, the connecting pipes must be detached firstly, and then the water meter gate valve is realized by changing accessories, so that the structural design of the water meter gate valve is more complex, the installation mode is not flexible enough, and the use is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect and provide a simple structure, leakage point are few, can be used for just adorning with the anti-dress with the non return subassembly switch in a flexible way, the mounting means is nimble, convenient to use's gate valve of return water meter is only taken.

The technical problem of the utility model is realized through following technical scheme:

the utility model provides a take non return water gauge gate valve, includes valve body, valve gap, valve rod and flashboard, valve body port department be equipped with the disjunctor and outwards extend the takeover, be equipped with the non return subassembly of removable installation in this takeover, and this non return subassembly location is just adorning in the takeover or the location is turned over and is adorned in the takeover.

The check assembly is loaded from the nipple port and is enclosed by a retainer ring.

The connecting pipe is internally provided with an inner shoulder for contacting and positioning the inner end of the check assembly, and the outer end of the check assembly contacts the retainer ring and is positioned.

The connecting pipe is formed by horizontally and outwards integrally extending along the axial lead of the port of the valve body.

The retainer ring is screwed in the connecting pipe in a detachable manner.

The non-return assembly is cylindrical, and the outer diameter of the non-return assembly is equal to or smaller than the inner diameter of the connecting pipe.

The outer surface of the check component is provided with an O-shaped ring which is in contact with the inner surface of the connecting pipe and forms a seal.

And a loose joint screw cap is arranged at the port of the connecting pipe.

The outer circumference of the port of the connecting pipe is provided with a boss, and the boss is provided with a steel wire ring for limiting the loose joint screw cap to be prevented from falling off.

Compared with the prior art, the utility model is mainly formed by extending the connecting pipe outwards from the valve port, thus eliminating the leakage point generated at the connecting part of the connecting pipe, and meanwhile, a detachably mounted non-return component is arranged in the connecting pipe, and the non-return component can be positioned and positively arranged in the connecting pipe or positioned and reversely arranged in the connecting pipe, namely, the non-return component is modularly designed, thus realizing the non-return function on the basis of structure simplification; like this, because the nimble switching of quick removable and just, the anti-dress of non return subassembly in the takeover to just can carry out the installation behind the table of water gauge gate valve or install before the table under the condition of not changing the accessory, the water gauge gate valve that even does not have non return subassembly also can use, and mounting means and user mode are fairly nimble, and it is also more convenient to use.

Drawings

Fig. 1 is the cross-sectional structure schematic diagram of the check assembly normal installation in the utility model.

Fig. 2 is the cross-sectional structure schematic diagram of the reverse installation of the middle check assembly of the present invention.

Fig. 3 is a schematic sectional view of the check assembly of the present invention.

FIG. 4 is a schematic cross-sectional view of a check assembly.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1-4, the valve comprises a valve body 1, a valve cover 2, a valve rod 3, a valve plate 4, a flashboard 5, an antifouling cover 6, a fastening ring 7, a double-channel O-shaped ring 8, a connecting pipe 81, an inner shoulder 82, a boss 9, a check assembly 91, a check seat 92, a check cover 93, a check piece 93, a check spring 94, a loose joint nut 10, a check ring 11, a steel wire ring 12, an O-shaped ring 13 and a mouth washer 14.

A gate valve with a non-return water meter is shown in figures 1-3 and is a pipeline valve combined with a non-return assembly 9, and the structure of the gate valve mainly comprises a valve body 1, a valve cover 2, a valve rod 3, a flashboard 4, an anti-pollution cover 5 and the like.

Two ends of the valve body 1 are respectively provided with a port, and the two ports are mutually communicated and are positioned on the axis of the same water channel; the valve cover 2 is hermetically arranged in an installation hole at the top of the valve body 1 through a mouth gasket 14; the valve rod 3 is vertically and rotatably sealed and installed in the valve cover 2 through a tight ring 6, and a double-channel O-shaped ring 7 is arranged on the outer circumferential surface of the valve rod 3 and serves as a dynamic sealing element; the antifouling cover 5 is covered on the top of the valve cover 2 to play a role in dust prevention and pollution prevention; the gate plate 4 is arranged in the valve body 1 and is driven by the rotating valve rod 3 to move up and down to form the opening and closing of the valve.

Any port of the valve body 1 is provided with a connecting pipe 8, the connecting pipe is formed by horizontally and outwards integrally extending along the axial lead of the port of the valve body, and a non-return assembly 9 which can be detachably installed is arranged in the connecting pipe 8.

The check assembly 9 adopts a modularized design as shown in fig. 4, has a cylindrical shape, and has an outer diameter equal to or smaller than the inner diameter of the connecting pipe, that is, the check assembly 9 has various diameters, can be flexibly selected according to the diameter of the connecting pipe 8, and is sealed by the retainer ring 11 after being loaded into the port of the connecting pipe 8 to form positioning installation, specifically: after the inner end of the check assembly 9 is installed in the connecting pipe 8, an inner shoulder 81 arranged in the connecting pipe is used for contact positioning, the outer end of the check assembly 9 is directly used for contact positioning by a closed check ring 11, and the check ring is connected in the connecting pipe 8 in a mode that an external thread is detachably screwed to be matched with an internal thread.

Because the check assembly 9 adopts a modular design and is sealed in the connecting pipe 8 by the detachably connected check ring 11, the check assembly 9 can be positioned and positively installed in the connecting pipe 8 and can also be positioned and reversely installed in the connecting pipe 8; like this, because non return subassembly 9 is quick detachable and just in takeover 8, the nimble switching of anti-dress, thereby just can carry out the installation behind the table of water gauge gate valve or install before the table under the condition of not changing the accessory, even can also use as the water gauge gate valve that does not have non return subassembly, also be that non return subassembly 9 has just installing, anti-dress and do not adorn these three kinds of schemes, the table back valve that corresponds the water gauge gate valve, the table front valve and do not have the three kinds of structures of non return, mounting means and service pattern are fairly nimble, it is also more convenient to use.

Meanwhile, the outer surface of the check assembly 9 is also provided with an O-ring 13 which contacts the inner surface of the adapter 8 to form a mounting seal, so that water is prevented from passing through a gap between the check assembly 9 and the adapter 8.

As shown in fig. 4, the check assembly 9 mainly includes a cylindrical housing formed by connecting a check seat 91 and a check cover 92, and a check member 93 disposed in the housing, wherein a check spring 94 is disposed between the check member and the check cover 92, and the end of the check member 93 can be pushed to be in sealing contact with the end of the check seat 91 by the elastic pushing of the check spring, thereby forming a check structure.

The port of the connecting pipe 8 is provided with a loose joint screw cap 10 to facilitate the sealing connection with the water meter, the outer circumference of the port of the connecting pipe 8 is also provided with a lug boss 82, and the lug boss 82 is provided with a ring of steel wire ring 12, so that the loose joint screw cap 10 can be limited to be prevented from falling off.

The utility model adopts the integrated connecting pipe 8, compared with the traditional threaded connecting type connecting pipe, the structure is simpler, and the leakage point can be reduced; and assemble check subassembly 9 alone as the modularized design, each specification and latus rectum make seriation, make things convenient for the design production of water gauge gate valve, so can obtain and just adorn, reverse dress and do not adorn these three kinds of structures to make the water gauge gate valve accomplish the use of table back valve, table front valve and ordinary water gauge gate valve and switch, also expanded the application occasion of product.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a take non return water gauge gate valve, includes valve body (1), valve gap (2), valve rod (3) and flashboard (4), its characterized in that valve body (1) port department be equipped with disjunctor and outwards extend takeover (8), be equipped with non return subassembly (9) of removable installation in this takeover, and this non return subassembly location is just adorned in takeover (8) or the location is turned over and is adorned in takeover (8).

2. A gate valve with a non-return water meter according to claim 1, characterized in that the non-return assembly (9) is inserted from the port of the adapter (8) and is closed by a retainer ring (11).

3. A gate valve with check water meter according to claim 2, characterized in that an inner shoulder (81) is provided in the adapter (8) for positioning the inner end of the check assembly (9), and the outer end of the check assembly (9) is positioned by contacting the retainer ring (11).

4. The gate valve with the check water meter according to claim 1, characterized in that the connecting pipe (8) is extended outwards along the axial lead of the port of the valve body (1).

5. A gate valve with check water meter according to claim 2, characterized in that the retainer ring (11) is screwed in the adapter (8) in a detachable manner.

6. A gate valve with check water meter according to claim 1, characterized in that the check member (9) is cylindrical and has an outer diameter equal to or smaller than the inner diameter of the adapter (8).

7. A gate valve with a non-return water meter according to claim 1, characterized in that the non-return assembly (9) has an outer surface provided with an O-ring (13) contacting the inner surface of the adapter (8) and forming a seal.

8. A gate valve with check water meter according to claim 1, characterized in that a loose joint nut (10) is provided at the port of the adapter (8).

9. The gate valve with check water meter according to claim 8, characterized in that the outer circumference of the port of the adapter (8) is provided with a boss (82) which is provided with a steel wire ring (12) for limiting the loose joint nut (10) from falling off.

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