Sand prevention flat valve with sand prevention function

By introducing a sand-proof design into the flat plate valve, the filter screen and scraper structure automatically clean the sand, solving the problems of poor sealing effect and difficult cleaning caused by sand accumulation, and extending the service life of the valve body.

CN223768142UActive Publication Date: 2026-01-06JIANGSU ZHONGRUI MASCH MFG CO LTD
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Patent Information

Application Number
CN202520022749.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-01-06
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

During use, existing flat valves suffer from poor sealing performance due to sand entering and accumulating inside the valve body in the water flow, which increases cleaning work and reduces service life.

Method used

A sand-proof flat valve with sand-proof function was designed. It adopts a combination structure of a first filter screen, a rotating rod, a second filter screen, an arc-shaped scraper, a rotating rod, a knob, a discharge port and a collection box. Impurities are intercepted by the filter screen, and the automatic cleaning of impurities is achieved by the cooperation of the arc-shaped scraper and the discharge port.

Benefits of technology

It effectively prevents sand from entering the valve body, improves the sealing effect, simplifies the cleaning process, and extends the service life of the valve body.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223768142U_ABST
    Figure CN223768142U_ABST
Patent Text Reader

Abstract

The utility model provides a sand prevention flat valve with a sand prevention function, and relates to the technical field of flat valves, the sand prevention flat valve comprises a valve body, one side of the valve body is provided with a water inlet pipeline, the water inlet pipeline is internally provided with an installation groove, the installation groove is internally provided with a first filter screen, and the installation groove is internally provided with a cleaning assembly. According to the device, impurities in water flow are intercepted through a first filter screen and a second filter screen, the impurities are prevented from entering the valve body to damage the internal structure, the impurities remaining at the bottom of the mounting groove are scraped into a discharging opening through an arc-shaped scraping plate and enter a collecting box through the discharging opening to be collected, convenience is provided for cleaning the inner wall of the mounting groove, and the service life of the device is prolonged. The cleaning work efficiency is improved, and the service life of the valve body is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of flat plate valve technology, and more specifically, it relates to a sand-proof flat plate valve with sand-proof function. Background Technology

[0002] A flat plate valve is a commonly used valve for fluid control, primarily used to open or close the flow of fluid in pipelines. Its design allows fluid to flow freely between the valve's flat plates, making it suitable for various fluids, including water, oil, and gas. It is widely used in industries such as chemical, petroleum, and water supply and drainage.

[0003] Based on the above, the inventors have discovered the following problems: In the current flat plate valve, sand carried in the water flow enters the valve body and accumulates in the gap at the bottom of the valve disc. Long-term use will lead to poor sealing effect of the valve disc, increase cleaning work, and the sand will damage the internal structure of the valve body, thereby reducing the service life of the flat plate valve.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a sand-proof flat valve with sand-proof function, in order to achieve a more practical value. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a sand-proof flat valve with sand-proof function. This solves the problem that, during the use of current flat valves, sand carried in the water flow enters the valve body and accumulates in the gap at the bottom of the valve disc. Over time, this leads to poor sealing performance of the valve disc, increases cleaning work, and the sand can damage the internal structure of the valve body, thereby reducing the service life of the flat valve.

[0006] The purpose and effect of this utility model of a sand-proof flat valve with sand-proof function are achieved by the following specific technical means:

[0007] A sand-proof flat plate valve with sand-proof function includes a valve body, an inlet pipe installed on one side of the valve body, an installation groove provided inside the inlet pipe, a first filter screen installed inside the installation groove, and a cleaning component installed inside the installation groove.

[0008] Furthermore, the cleaning assembly includes a rotating rod rotatably mounted inside the mounting groove. A plurality of second filter screens are mounted on the periphery of the rotating rod, and an arc-shaped scraper is mounted on one side of each of the second filter screens. The periphery of the arc-shaped scraper is in contact with the inner wall of the mounting groove.

[0009] Furthermore, an installation base is installed on one side of the outer wall of the water inlet pipe, and a rotating rod is rotatably installed on one side of the installation base. One end of the rotating rod is connected to a rotating rod, and a knob is installed on one end of the rotating rod.

[0010] Furthermore, the bottom of the mounting groove is provided with a discharge port, and a sealing seat is installed at the bottom of the discharge port. A collection box is threadedly connected to the bottom end of the sealing seat.

[0011] Furthermore, a water outlet pipe is installed on one side of the valve body.

[0012] Furthermore, a valve disc is installed inside the valve body, and a pair of sealing rings are installed on both sides of the valve disc inside the valve body, and a valve stem is installed on the top of the valve disc.

[0013] Furthermore, a valve cover is installed at the top of the valve body, a valve seat is installed at the top of the valve cover, the top of the valve stem extends to the outside of the valve seat, and a rotating handle is installed at the top of the valve stem.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the coordinated use of the first filter screen, rotating rod, second filter screen, arc-shaped scraper, rotating rod, knob, discharge port, sealing seat, and collection box, the first and second filter screens intercept impurities in the water flow, preventing them from entering the valve body and damaging its internal structure. The second filter screen blocks larger particles in the water flow. Simultaneously, when the water flow stops, residual impurities remain on the bottom wall of the installation groove. Because the periphery of the arc-shaped scraper fits against the inner wall of the installation groove, the operator rotates the rotating rod via the knob. This rotation causes the rotating rod to rotate, and as it rotates, the arc-shaped scraper scrapes the remaining impurities at the bottom of the installation groove into the discharge port, where they are collected inside the collection box. Since the collection box is threadedly connected to the sealing seat, it can be removed by rotating the collection box, facilitating the cleaning of the inner wall of the installation groove, improving cleaning efficiency, and extending the service life of the valve body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a sand-proof flat plate valve with sand-proof function according to this utility model.

[0017] Figure 2 This is a partial cross-sectional schematic diagram of a sand-proof flat plate valve with sand-proof function according to this utility model.

[0018] Figure 3 This is a partial schematic diagram of the mounting groove for a sand-proof flat valve with sand-proof function according to this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Valve cover; 5. Valve seat; 6. Rotary handle; 7. Sealing seat; 8. Collection box; 9. Mounting seat; 10. Rotating rod; 11. Knob; 12. Discharge port; 13. First filter screen; 14. Rotating rod; 15. Second filter screen; 16. Arc-shaped scraper; 17. Valve disc; 18. Valve stem; 19. Sealing ring; 20. Mounting groove. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 3 As shown:

[0026] This utility model provides a sand-proof flat valve with sand-proof function, including a valve body 1. A water inlet pipe 2 is installed on one side of the valve body 1. An installation groove 20 is provided inside the water inlet pipe 2. A first filter screen 13 is installed inside the installation groove 20. A cleaning component is installed inside the installation groove 20. Through the use of the first filter screen 13, the first filter screen 13 intercepts impurities in the flowing water, preventing impurities from entering the valve body 1 and causing damage to the internal structure, thus extending the service life of the valve body 1.

[0027] The cleaning assembly includes a rotating rod 14, which is rotatably installed inside the mounting groove 20. A plurality of second filter screens 15 are installed on the periphery of the rotating rod 14, and an arc-shaped scraper 16 is installed on one side of the plurality of second filter screens 15. The periphery of the arc-shaped scraper 16 is in contact with the inner wall of the mounting groove 20.

[0028] The water inlet pipe 2 has an installation base 9 installed on one side of its outer wall. A rotating rod 10 is rotatably installed on one side of the installation base 9. One end of the rotating rod 10 is connected to the rotating rod 14, and a knob 11 is installed on one end of the rotating rod 10.

[0029] The bottom of the mounting groove 20 is provided with a discharge port 12, and a sealing seat 7 is installed at the bottom of the discharge port 12. A collection box 8 is threadedly connected to the bottom end of the sealing seat 7.

[0030] Through the coordinated use of the rotating rod 14, the second filter screen 15, the arc-shaped scraper 16, the rotating rod 10, the knob 11, the discharge port 12, the sealing seat 7, and the collection box 8, the second filter screen 15 blocks larger particles in the water flow. At the same time, when the water flow stops, there are residual impurities on the bottom wall of the installation groove 20. Since the periphery of the arc-shaped scraper 16 is in contact with the inner wall of the installation groove 20, the operator can rotate the rotating rod 10 by turning the knob 11. At this time, the rotating rod 10 drives the rotating rod 14 to rotate. When the rotating rod 14 rotates, the arc-shaped scraper 16 scrapes the residual impurities at the bottom of the installation groove 20 into the discharge port 12, and collects them inside the collection box 8 through the discharge port 12. Since the collection box 8 is threadedly connected to the sealing seat 7, it can be removed by rotating the collection box 8, which facilitates cleaning the inner wall of the installation groove 20, improves the cleaning efficiency, and extends the service life of the valve body 1.

[0031] A water outlet pipe 3 is installed on one side of the valve body 1.

[0032] The valve body 1 has a valve disc 17 installed inside, and a pair of sealing rings 19 are installed on both sides of the valve disc 17 inside the valve body 1. A valve stem 18 is installed on the top of the valve disc 17.

[0033] The valve body 1 has a valve cover 4 installed at its top, a valve seat 5 installed at its top, a valve stem 18 extending to the outside of the valve seat 5, and a rotating handle 6 installed at its top.

[0034] The specific usage and function of this embodiment are as follows:

[0035] First, check the integrity of the device. Only use it after confirming it is intact. During use, first rotate the handle 6 to turn the valve stem 18. The valve stem 18 causes the valve disc 17 to rise, and water flows into the mounting groove 20 through the inlet pipe 2. The first filter screen 13 and the second filter screen 15 intercept impurities in the water flow, preventing them from entering the valve body 1 and damaging its internal structure. The water flows out through the outlet pipe 3. Then, rotate the handle 6 in the opposite direction, causing the valve stem 18 to descend and the valve disc 17 to descend. When the water flow stops, there are residual impurities on the bottom wall of the mounting groove 20. This is because the periphery of the arc-shaped scraper 16 is adjacent to the mounting groove 20. The inner wall of the installation groove 20 is fitted together, so the operator rotates the rotating rod 10 by turning the knob 11. At this time, the rotating rod 10 drives the rotating rod 14 to rotate. When the rotating rod 14 rotates, the arc-shaped scraper 16 scrapes the impurities remaining at the bottom of the installation groove 20 into the discharge port 12, and collects them into the collection box 8 through the discharge port 12. Since the collection box 8 and the sealing seat 7 are threadedly connected, the collection box 8 can be removed by rotating it, which provides convenience for cleaning the inner wall of the installation groove 20, improves the cleaning efficiency, and extends the service life of the valve body 1. This device has a novel overall design and simple structure, so it is worth promoting and using widely.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A sand control flat valve with sand control function, comprising a valve body (1), characterized in that: One side of the valve body (1) is provided with a water inlet pipe (2), the inside of the water inlet pipe (2) is provided with a mounting groove (20), the inside of the mounting groove (20) is provided with a first filter screen (13), and the inside of the mounting groove (20) is provided with a cleaning assembly.

2. The sand control flat slide valve with sand control function according to claim 1, characterized in that: The cleaning assembly comprises a rotating rod (14) which is rotatably installed in the mounting groove (20), a plurality of second filter screens (15) are installed on the circumferential side of the rotating rod (14), one side of the second filter screens (15) is provided with an arc-shaped scraper (16), and the circumferential side of the arc-shaped scraper (16) is attached to the inner wall of the mounting groove (20).

3. The sand control flat slide valve with sand control function according to claim 2, characterized in that: One side of the outer wall of the water inlet pipe (2) is provided with a mounting seat (9), one side of the mounting seat (9) is rotatably provided with a rotating rod (10), one end of the rotating rod (10) is connected with the rotating rod (14), and one end of the rotating rod (10) is provided with a knob (11).

4. The sand control flat slide valve with sand control function according to claim 3, characterized in that: The bottom of the mounting groove (20) is provided with a discharge port (12), the bottom of the discharge port (12) is provided with a sealing seat (7), and the bottom end of the sealing seat (7) is threadedly connected with a collecting box (8).

5. The sand control flat slide valve with sand control function according to claim 4, characterized in that: One side of the valve body (1) is provided with a water outlet pipe (3).

6. The sand control flat slide valve with sand control function according to claim 5, characterized in that: The inside of the valve body (1) is provided with a valve clack (17), a pair of sealing rings (19) are installed on both sides of the valve clack (17) in the valve body (1), and the top of the valve clack (17) is provided with a valve rod (18).

7. The sand control flat slide valve with sand control function according to claim 6, characterized in that: The top end of the valve body (1) is provided with a valve cover (4), the top end of the valve cover (4) is provided with a valve seat (5), the top end of the valve rod (18) extends to the outside of the valve seat (5), and the top end of the valve rod (18) is provided with a rotating handle (6).