CN215891185U

CN215891185U - Valve for water supply and drainage engineering

Info

Publication number: CN215891185U
Application number: CN202122101948.4U
Authority: CN
Inventors: 李连颖; 汪小峰; 童宇奇; 刘志会; 储欢欢; 唐义奎; 张娇娇
Original assignee: Hefei Hengda Jianghai Pump Co Ltd
Current assignee: Hefei Hengda Jianghai Pump Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-22
Anticipated expiration: 2031-09-01

Abstract

The utility model relates to a valve for water supply and drainage engineering, which comprises: the valve comprises a valve body, a liquid inlet pipe and a liquid discharge pipe, wherein a valve cavity is arranged in the valve body, the liquid inlet pipe is arranged at one end of the valve body and communicated to the interior of the valve cavity, the liquid discharge pipe is arranged at the other end of the valve body and communicated to the interior of the valve cavity, threads are arranged on the inner surface of the valve cavity, a valve core is further arranged in the valve cavity, the valve core is of a cylindrical structure, threads are arranged on the surface of the valve core, the valve core is in threaded connection with the inner surface of the valve cavity, a lead screw is connected to one end of the valve core, the other end of the lead screw penetrates through the valve body and is communicated to the outer side of the valve cavity, a groove is formed in one end, close to the valve cavity, of the liquid discharge pipe, a filter screen is arranged in the liquid discharge pipe, and the periphery of the filter screen is lapped in the groove. The valve has the advantages of firm and reliable connection and convenience in accurate adjustment, and impurities can be easily cleaned or the filter screen can be easily disassembled after the valve is opened, so that the service life of the valve is longer.

Description

Valve for water supply and drainage engineering

Technical Field

The utility model relates to the technical field of water supply and drainage engineering, in particular to a valve for water supply and drainage engineering.

Background

Valves are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium, and are essential components in piping systems. Valve tubing is technically the same as pumps and is often discussed as a separate category. The valve can be operated manually or by a hand wheel, a handle or a pedal, and can also be controlled to change the pressure, the temperature and the flow of the fluid medium. The valve can operate continuously or repeatedly for these changes, such as a safety valve installed in a hot water system or a steam boiler.

The valve in the prior art is complex in structure, so that the production cost is high. Meanwhile, the valve in the prior art is easy to block in use, and once the valve is blocked and cannot be opened, the valve cannot be used and needs to be replaced in time, so that great loss is caused. In order to solve the problem, the application provides a valve for water supply and drainage engineering.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a valve for water supply and drainage engineering, which aims to solve part of problems in the background technology.

The embodiment of the utility model provides a valve for water supply and drainage engineering, which comprises: the valve comprises a valve body, a liquid inlet pipe and a liquid discharge pipe, wherein a valve cavity is arranged in the valve body, the liquid inlet pipe is arranged at one end of the valve body and communicated with the valve cavity, the liquid discharge pipe is arranged at the other end of the valve body and communicated into the valve cavity, the valve cavity is of a hollow cylinder structure, the inner surface of the valve body is provided with threads, a valve core is also arranged in the valve cavity and is of a cylindrical structure, the surface of the valve core is provided with threads, the valve core is connected with the inner surface of the valve cavity through the threads, one end of the valve core is connected with a screw rod, the other end of the screw rod penetrates through the valve body and is communicated to the outer side of the valve cavity, one end of the liquid discharge pipe close to the valve cavity is provided with a groove, and a filter screen is arranged in the liquid discharge pipe, the periphery of the filter screen is lapped in the groove, an end cover is arranged at one end of the valve body opposite to the screw rod, and the end cover is connected to the valve body through a screw.

Further, the length of the valve cavity at one end of the screw rod is larger than the height of the valve core.

Further, a rubber gasket is arranged between the end cover and the valve body.

Further, a bearing and a mechanical seal are further arranged on the valve body, and the screw rod is arranged in the bearing and the mechanical seal in a penetrating mode.

Furthermore, the valve also comprises a driving device, wherein the output end of the driving device is connected with a thread block, and the thread block is connected with the screw rod.

Further, the driving device is a stepping motor.

Furthermore, a rotary handle is arranged at the end part of the screw rod, which is positioned outside the valve cavity.

Further, the end of the liquid inlet pipe is provided with a liquid inlet flange.

Further, a liquid discharge flange is arranged at the end part of the liquid discharge pipe.

Further, the diameter of the liquid inlet pipe is equal to that of the liquid discharge pipe.

The advantages of the utility model are as follows: the valve core can be easily rotated by rotating the screw rod connected with the valve core, and the valve core can be displaced under the guidance of the screw thread relative to the inner wall of the valve cavity, so that the aim of opening or closing the valve is fulfilled. Meanwhile, the groove is formed in the liquid discharge pipe, impurities in liquid flowing through the liquid discharge pipe can be filtered after the filter screen is lapped on the groove, the openable end cover is arranged at the upper end of the valve body, when the filter screen needs to be replaced or the impurities need to be cleaned, the valve cavity of the valve is adjusted to the lower end position only by closing the valve at the upper end of the pipeline, so that the filter screen is exposed outside, the filter screen can be easily taken out from the end cover, and the cleaning of the impurities or the replacement of the filter screen is completed.

In summary, on one hand, the valve core and the valve cavity are in threaded connection, so that the valve core has the advantages of firm and reliable connection, convenience in accurate adjustment and simple and convenient adjustment process; on the other hand, the end cover is arranged on the valve body, the filter screen is arranged on the liquid discharge pipe, impurities can be easily cleaned or the filter screen can be easily disassembled after the valve body is opened, and the service life of the valve is longer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a valve for water supply and drainage engineering according to an embodiment of the present invention.

In the figure: the valve comprises a valve body 1, a liquid inlet pipe 2, a liquid discharge pipe 3, a valve cavity 4, a valve core 5, a screw rod 6, a groove 7, a filter screen 8, an end cover 9, a screw 10, a rubber gasket 11, a bearing 12, a mechanical seal 13, a driving device 14, a thread block 15, a rotary handle 16, a liquid inlet flange 17 and a liquid discharge flange 18.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the utility model and are not intended to limit the scope of the utility model, i.e., the utility model is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the utility model.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present application will be described in detail with reference to the accompanying drawings 1 in conjunction with an embodiment.

According to the embodiment of the utility model, the valve for water supply and drainage engineering comprises: the valve comprises a valve body 1, a liquid inlet pipe 2 and a liquid outlet pipe 3, wherein a valve cavity 4 is arranged in the valve body 1, the liquid inlet pipe 2 is arranged at one end of the valve body 1 and communicated with the valve cavity 4, the liquid outlet pipe 3 is arranged at the other end of the valve body 1 and communicated with the valve cavity 4, the valve cavity 4 is of a hollow cylindrical structure, threads are arranged on the inner surface of the valve cavity 4, a valve core 5 is further arranged in the valve cavity 4, the valve core 5 is of a cylindrical structure, threads are arranged on the surface of the valve core 5, the valve core 5 is connected with the inner surface of the valve cavity 4 through threads, one end of the valve core 5 is connected with a lead screw 6, the other end of the lead screw 6 penetrates through the valve body 1 and is communicated with the outer side of the valve cavity 4, a groove 7 is arranged at one end of the liquid outlet pipe 3 close to the valve cavity 4, a filter screen 8 is arranged in the liquid outlet pipe 3, and the periphery of the filter screen 8 is lapped in the groove 7, an end cover 9 is arranged at one end, opposite to the screw rod 6, of the valve body 1, and the end cover 9 is connected to the valve body 1 through a screw 10.

Specifically, the length of the valve cavity 4 at one end of the screw rod 6 is greater than the height of the valve core 5. And a rubber gasket 11 is also arranged between the end cover 9 and the valve body 1. The valve body 1 is further provided with a bearing 12 and a mechanical seal 13, and the screw rod 6 is arranged in the bearing 12 and the mechanical seal 13 in a penetrating mode. The valve further comprises a driving device 14, wherein the output end of the driving device 14 is connected with a thread block 15, and the thread block 15 is connected with the screw rod 6. The driving device 14 is a stepping motor. The end part of the screw rod 6 positioned outside the valve cavity 4 is provided with a rotary handle 16. And a liquid inlet flange 17 is arranged at the end part of the liquid inlet pipe 2. The end of the drain pipe 3 is provided with a drain flange 18. The diameter of the liquid inlet pipe 2 is equal to that of the liquid discharge pipe 3.

The working principle is as follows: referring to the attached drawing 1, in the embodiment of the utility model, the valve core 5 is arranged in the valve cavity 4 of the valve body 1, and the valve core 5 is in threaded connection with the valve cavity 4, so that the valve core 5 has the advantages of firm and reliable connection, convenience for accurate adjustment and simple and convenient adjustment process, the valve core 5 can be easily rotated by rotating the screw rod 6 connected with the valve core 5, and then the valve core 5 can be easily displaced under the guidance of threads relative to the inner wall of the valve cavity 4, so as to achieve the purpose of opening or closing the valve, for example, the liquid inlet pipe 2 and the liquid outlet pipe 3 need to be communicated, and only the valve core 5 needs to be adjusted upwards or downwards (the up-down direction in the drawing 1, which is not enough to limit the application), so that the liquid inlet pipe 2 and the liquid outlet pipe 3 are communicated; when the liquid inlet pipe 2 and the liquid discharge pipe 3 need to be disconnected, only the screw rod 6 needs to be rotated, so that the valve core 5 is adjusted to the middle part to block a channel between the liquid inlet pipe 2 and the liquid discharge pipe 3. Specifically, in the embodiment of the present invention, the rotating handle 16 is disposed on the outer side of the valve body 1 for rotating the screw rod 6, and the driving device 14 is also disposed, after the driving device 14 rotates, the screw block 15 is driven to rotate the screw rod 6 engaged with the screw block, and whether the valve core 5 is communicated with the liquid inlet pipe 2 and the liquid outlet pipe 3 can be adjusted by adjusting the forward rotation and the reverse rotation of the driving device 14. Meanwhile, in the embodiment of the utility model, the groove 7 is arranged in the liquid discharge pipe 3, the filter screen 8 is lapped on the groove 7 and then impurities in liquid flowing through the liquid discharge pipe 3 can be filtered, the openable end cover 9 is arranged at the upper end of the valve body 1, when the filter screen 8 needs to be replaced or the impurities need to be cleaned, the valve cavity 4 of the valve is adjusted to the lower end position after the valve at the upper end in the pipeline is closed, so that the filter screen 8 is exposed, the filter screen 8 can be easily taken out from the end cover 9, and the impurities can be cleaned or the filter screen can be replaced.

In conclusion, on one hand, the valve core 5 is in threaded connection with the valve cavity 4, so that the valve has the advantages of firm and reliable connection, convenience in accurate adjustment and simple and convenient adjustment process; on the other hand, be provided with end cover 9 on valve body 1, be provided with filter screen 8 on fluid-discharge tube 3, can easily open back clearance impurity or dismouting filter screen 8 for valve life is longer.

It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.

The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a valve for plumbing, its characterized in that includes: the valve comprises a valve body (1), a liquid inlet pipe (2) and a liquid discharge pipe (3), wherein a valve cavity (4) is arranged in the valve body (1), the liquid inlet pipe (2) is arranged at one end of the valve body (1) and communicated with the valve cavity (4), the liquid discharge pipe (3) is arranged at the other end of the valve body (1) and communicated with the valve cavity (4), the valve cavity (4) is of a hollow cylinder structure, threads are arranged on the inner surface of the valve cavity, a valve core (5) is further arranged in the valve cavity (4), the valve core (5) is of a cylinder structure, threads are arranged on the surface of the valve core, the valve core (5) is in threaded connection with the inner surface of the valve cavity (4), one end of the valve core (5) is connected with a screw rod (6), the other end of the screw rod (6) penetrates through the valve body (1) and is communicated with the outer side of the valve cavity (4), and a groove (7) is arranged at one end, close to the liquid discharge pipe (3), of the valve cavity (4), and a filter screen (8) is arranged in the liquid discharge pipe (3), the periphery of the filter screen (8) is overlapped in the groove (7), the valve body (1) is opposite to one end of the screw rod (6) and is provided with an end cover (9), and the end cover (9) is connected to the valve body (1) through a screw (10).

2. A valve for water supply and drainage engineering according to claim 1, wherein the length of the valve cavity (4) at one end of the screw rod (6) is greater than the height of the valve core (5).

3. A valve for water supply and drainage engineering according to claim 1, characterized in that a rubber gasket (11) is further provided between the end cover (9) and the valve body (1).

4. A valve for water supply and drainage engineering according to claim 1, wherein a bearing (12) and a mechanical seal (13) are further provided on the valve body (1), and the screw rod (6) is inserted into the bearing (12) and the mechanical seal (13).

5. A water supply and drainage engineering valve according to claim 1, characterized in that the valve further comprises a driving device (14), the output end of the driving device (14) is connected with a thread block (15), and the thread block (15) is connected with the screw rod (6).

6. A valve for water supply and drainage engineering according to claim 5, wherein the driving device (14) is a stepping motor.

7. A valve for water supply and drainage engineering according to claim 1, characterized in that the end of the screw rod (6) located outside the valve cavity (4) is provided with a rotary handle (16).

8. A valve for water supply and drainage engineering according to claim 1, characterized in that the end of the liquid inlet pipe (2) is provided with a liquid inlet flange (17).

9. A valve for water supply and drainage works according to claim 1, characterized in that the end of the drain pipe (3) is provided with a drain flange (18).

10. A valve for water supply and drainage engineering according to claim 1, characterised in that the diameter of the liquid inlet pipe (2) is equal to the diameter of the liquid outlet pipe (3).