Gate valve for hydraulic engineering

Abstract

The utility model relates to the technical field of gate valves, in particular to a gate valve for hydraulic engineering, which comprises a valve body, flanges are fixedly connected to two ends of the valve body, valve ports are arranged at two ends of the valve body, a filtering structure is arranged on the surface of the valve body, the filtering structure comprises a filtering box, the filtering box is communicated with the surface of the valve body, and the valve ports are communicated with the filtering box. A box opening is formed in one side of the filter box, a rectangular plate is slidably inserted into the filter box, a filter plate is mounted on the surface of the rectangular plate, a box cover is fixedly connected to one side of the rectangular plate, bolts are in threaded connection to the two sides of the box cover, a handle is fixedly connected to the surface of the box cover, and the vertical section of the handle is in a U shape. According to the gate valve, the problems that impurities and garbage often contained in water are easily attached to the surface of the gate plate when the gate valve is closed, and the gate plate is easily corroded due to long-time attachment, so that the gate valve is damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve for water conservancy projects. Background Art

[0002] A gate valve is a device composed of a valve body, a valve cover or bracket, a valve stem, a valve stem nut, a gate plate, a valve seat and other components. Gate valves are often used in water conservancy projects. They are a water control valve that uses the sliding of a circular gate to regulate or interrupt the flow of water.

[0003] A Chinese patent with publication number CN216743104U discloses a gate valve, the key points of its technical solution are: including a valve body, a valve cover and a valve stem, the valve cover and the valve stem are fixedly mounted on the valve body, the top end of the valve stem extends above the valve cover, a locking mechanism is provided at the top end of the valve cover, and a control mechanism is provided at the top end of the valve stem, the locking mechanism comprises a transverse plate, a top plate, a pin rod, a fixing ring, a spring and a bottom plate, one end of the transverse plate is fixedly connected to the side wall of the valve stem, the top plate is located above the transverse plate, the pin rod passes through the transverse plate and the top plate, the fixing ring is fixedly mounted in the middle of the pin rod, and the spring is sleeved on the outside of the pin rod. The utility model arranges a locking mechanism on the valve cover, and after the valve stem is rotated to drive the valve plate to be fully opened, the valve stem can be locked by the locking mechanism to prevent the valve stem from rotating, and the valve plate can be kept in a fully open state by locking the valve stem, so as to avoid the valve plate sealing surface from being impacted by the medium and improve the service life of the gate valve.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when gate valves are used in water conservancy projects, because the water often contains impurities and garbage, they are easy to adhere to the surface of the gate plate when the gate valve is closed. Long-term adhesion can easily cause the gate plate to be corroded, thereby causing damage to the gate valve, thereby affecting the efficiency of the gate valve.

[0005] Therefore, the utility model provides a gate valve for water conservancy projects. Utility Model Content

[0006] The utility model aims to solve the problem in the prior art that water often contains impurities and garbage, which are easily attached to the surface of the gate plate when the gate valve is closed. Long-term attachment can easily lead to corrosion of the gate plate, thereby causing damage to the gate valve. A gate valve for water conservancy projects is proposed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gate valve for water conservancy projects, including a valve body, both ends of the valve body are fixedly connected with flanges, both ends of the valve body are provided with valve ports, the surface of the valve body is provided with a filtering structure, the filtering structure includes a filter box, the filter box is connected to the surface of the valve body, one side of the filter box is provided with a box port, a rectangular plate is slidably inserted in the filter box, the surface of the rectangular plate is mounted with a filter plate, one side of the rectangular plate is fixedly connected with a box cover, and both sides of the box cover are threadedly connected with bolts.

[0008] The effect achieved by the above components is: by setting up a filtering structure, it is convenient to filter the water flowing into the gate valve, avoiding impurities and garbage in the water adhering to the surface of the gate plate and corroding the gate plate, thereby improving the use efficiency of the gate valve and further increasing the service life of the gate valve.

[0009] Preferably, a handle is fixedly connected to the surface of the box cover, and the vertical section of the handle is "U"-shaped.

[0010] The effect achieved by the above components is that the movement of the handle will drive the box cover to move, and the handle can facilitate the movement of the box cover.

[0011] Preferably, a side of the rectangular plate away from the box cover is fixedly connected to a limiting plate, and the size of the limiting plate is adapted to the size of the inner wall of the filter box.

[0012] The effect achieved by the above components is that when the filter plate moves, it will drive the limiting plate to move towards the box opening until the limiting plate moves to a suitable position, and the limiting plate can improve the airtightness between the rectangular plate and the box opening.

[0013] Preferably, the surface of the filter plate is rotatably connected to a rotating shaft, the arc surface of the rotating shaft is rotatably connected to a ring, and the arc surface of the ring is fixedly connected to a scraper.

[0014] The effect achieved by the above components is that the ring rotates along the arc surface of the shaft, and the ring drives the scraper to slide along the surface of the filter plate when rotating. The scraper scrapes off impurities and garbage attached to the surface of the filter plate, thereby improving the filtering effect of the filter plate.

[0015] Preferably, the arc surface of the valve body is provided with a supporting structure, and the supporting structure includes a bracket, and the bracket is fixedly connected to the arc surface of the valve body, and two driving rods are penetrated by a surface thread of the bracket, and one end of the two driving rods is rotatably connected to a driving block, one side of the driving block is fixedly connected to a support rod, and one end of the support rod away from the driving block is fixedly connected to a support plate, and one end of the driving rod away from the driving block is fixedly connected to a turntable.

[0016] The effect achieved by the above components is: by setting the supporting structure, it is convenient to lift the pipeline to be level with the valve port of the gate valve, thereby facilitating the connection of the pipeline with the gate valve, thereby improving the installation efficiency of the construction personnel.

[0017] Preferably, two round rods are fixedly connected to the surface of the support plate, the arc surface of the round rod is slidably connected to a pressure plate, the arc surface of the round rod is sleeved with a spring, and both ends of the spring are fixedly connected to the support plate and the pressure plate respectively.

[0018] The effect achieved by the above components is that the pressure plate moves toward the pipeline with the help of the contraction force of the spring until the arc surface of the pipeline contacts the groove opened on the surface of the pressure plate, and the pressure plate reaches the function of limiting the position of the pipeline.

[0019] Preferably, a groove is provided on one side of the support plate and the pressure plate that are close to each other, and the vertical cross-section of the groove is arc-shaped.

[0020] The effect achieved by the above-mentioned components is that the groove can prevent the pipeline from being deviated when the pressure plate abuts the pipeline against the surface of the support plate.

[0021] In summary:

[0022] 1. In the utility model, by setting a filtering structure, the movement of the handle will drive the box cover to move, and the box cover will drive the rectangular plate to move when it moves, and the rectangular plate will drive the filter plate to move when it moves, so that the filter plate can filter the impurities and garbage in the water flowing through the gate valve, and the movement of the rectangular plate will drive the filter plate to move, and the filter plate will drive the limit plate to move toward the box opening until the limit plate moves to a suitable position, and the rectangular plate can prevent water from flowing out of the gap between the limit plate and the box opening.

[0023] 2. In the utility model, by setting a supporting structure, the pressure plate moves toward the direction close to the pipeline with the help of the contraction force of the spring until the arc surface of the pipeline contacts the groove provided on the surface of the pressure plate, and the pressure plate limits the pipeline on the surface of the support plate. When the driving rod moves, it will drive the driving block to move, and when the driving block moves, it will drive the support rod to move, and when the support rod moves, it will drive the support plate to move, so that the support plate can facilitate the movement of the pipeline to the same level as the gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the filter box of the utility model;

[0026] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0027] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at the middle bracket.

[0028] Legend: 1. Valve body; 2. Flange; 3. Valve port; 4. Filter structure; 401. Filter box; 402. Box port; 403. Rectangular plate; 404. Filter plate; 405. Box cover; 406. Bolt; 407. Handle; 408. Limit plate; 409. Rotating shaft; 410. Ring; 411. Scraper; 5. Support structure; 51. Bracket; 52. Drive rod; 53. Drive block; 54. Support rod; 55. Support plate; 56. Round rod; 57. Spring; 58. Pressure plate; 59. Turntable. DETAILED DESCRIPTION

[0029] Reference Figure 1 As shown, the utility model provides a technical solution: a gate valve for water conservancy projects, including a valve body 1, flanges 2 are fixedly connected at both ends of the valve body 1, valve ports 3 are opened at both ends of the valve body 1, and a filter structure 4 is provided on the surface of the valve body 1, and the filter structure 4 includes a filter box 401. By setting the filter structure 4, it is convenient to filter the water flowing into the gate valve, and it is prevented that the impurities and garbage in the water adhere to the surface of the gate plate and corrode the gate plate, thereby improving the use efficiency of the gate valve, and further improving the service life of the gate valve. The arc surface of the valve body 1 is provided with a support structure 5, and the support structure 5 includes a bracket 51. By setting the support structure 5, it is convenient to lift the pipeline to be at the same level with the valve port 3 of the gate valve, so as to facilitate the connection of the pipeline with the gate valve, thereby improving the installation efficiency of the construction personnel.

[0030] The specific configuration and function of the filtering structure 4 and the supporting structure 5 will be described in detail below.

[0031] Reference Figure 2 and Figure 3As shown, in this embodiment: the filter box 401 is connected to the surface of the valve body 1, a box opening 402 is opened on one side of the filter box 401, a rectangular plate 403 is slidably inserted in the filter box 401, a filter plate 404 is installed on the surface of the rectangular plate 403, a box cover 405 is fixedly connected to one side of the rectangular plate 403, and bolts 406 are threadedly connected to both sides of the box cover 405. A handle 407 is fixedly connected to the surface of the box cover 405, and the vertical section of the handle 407 is "U"-shaped. The movement of the handle 407 will drive the box cover 405 to move, and the handle 407 can facilitate the movement of the box cover 405. A limiting plate 408 is fixedly connected to one side of the rectangular plate 403 away from the box cover 405. The size of the limiting plate 408 is adapted to the size of the inner wall of the filter box 401. When the filter plate 404 moves, it will drive the limiting plate 408 to move toward the box opening 402 until the limiting plate 408 moves to a suitable position. The limiting plate 408 can improve the airtightness between the rectangular plate 403 and the box opening 402. The surface of the filter plate 404 is rotatably connected with a rotating shaft 409, and the circular arc surface of the rotating shaft 409 is rotatably connected with a ring 410. The circular arc surface of the ring 410 is fixedly connected with a scraper 411. The ring 410 rotates along the circular arc surface of the rotating shaft 409. When the ring 410 rotates, it drives the scraper 411 to slide along the surface of the filter plate 404. The scraper 411 can scrape off impurities and garbage attached to the surface of the filter plate 404, thereby improving the filtering effect of the filter plate 404.

[0032] Reference Figure 4 As shown, specifically, the bracket 51 is fixedly connected to the arc surface of the valve body 1, and two driving rods 52 are threaded through the surface of the bracket 51, and one end of the two driving rods 52 is rotatably connected to the driving block 53, and one side of the driving block 53 is fixedly connected to the support rod 54, and the end of the support rod 54 away from the driving block 53 is fixedly connected to the support plate 55, and the end of the driving rod 52 away from the driving block 53 is fixedly connected to the turntable 59. Two round rods 56 are fixedly connected to the surface of the support plate 55, and the arc surface of the round rod 56 is slidably connected to the pressing plate 58, and the arc surface of the round rod 56 is sleeved with a spring 57, and the two ends of the spring 57 are fixedly connected to the support plate 55 and the pressing plate 58 respectively. The pressing plate 58 moves in the direction close to the pipeline with the help of the contraction force of the spring 57 until the arc surface of the pipeline contacts the groove opened on the surface of the pressing plate 58, and the pressing plate 58 reaches the function of limiting the position of the pipeline. A groove is provided on one side of the support plate 55 and the pressing plate 58 where they are close to each other. The vertical section of the groove is arc-shaped. The groove prevents the pipeline from deviating when the pressing plate 58 abuts the pipeline against the surface of the support plate 55 .

[0033] Working principle: when it is necessary to filter the water flowing into the gate valve, first push the handle 407 in the direction close to the filter box 401. The movement of the handle 407 will drive the box cover 405 to move. When the box cover 405 moves, it will drive the rectangular plate 403 to move. When the rectangular plate 403 moves, it will drive the filter plate 404 to move. The limit plate 408 will slide along the inner wall of the filter box 401 with the help of the movement of the rectangular plate 403. When the rectangular plate 403 moves to a suitable position, the bolt 406 is turned. The bolt 406 moves in the box cover 405 with the help of the thread. When the bolt 406 moves, it will move in the direction close to the filter box 401 until one end of the bolt 406 abuts against the surface of the filter box 401. The filter plate 404 filters the impurities and garbage in the water flowing through the gate valve. When the garbage on the surface of the plate 404 is to be removed, the bolt 406 is rotated in the opposite direction to disengage the bolt 406 from the contact with the filter box 401, and then the handle 407 is pulled away from the filter box 401. The box cover 405 moves with the help of the handle 407, which will drive the rectangular plate 403 to move. The movement of the rectangular plate 403 will drive the filter plate 404 to move. When the filter plate 404 moves, it will drive the limiting plate 408 to move toward the box opening 402 until the limiting plate 408 moves to a suitable position. The limiting plate 408 achieves the effect of improving the airtightness between the rectangular plate 403 and the box opening 402. Then the ring 410 is rotated. The ring 410 rotates along the arc surface of the rotating shaft 409. When the ring 410 rotates, it will drive the scraper 411 to slide along the surface of the filter plate 404.

[0034] When the gate valve needs to be connected to the pipeline, the pressure plate 58 is first pulled, and the pressure plate 58 slides along the arc surface of the round rod 56. The pressure plate 58 will stretch the spring 57 when sliding. At this time, the spring 57 is in a stretched state. Then the pipeline is placed in the groove provided on the surface of the support plate 55, and then the pulled pressure plate 58 is released. The pressure plate 58 moves in the direction close to the pipeline with the help of the contraction force of the spring 57 until the arc surface of the pipeline contacts the groove provided on the surface of the pressure plate 58. The pressure plate 58 reaches the function of limiting the position of the pipeline, and then the turntable 59 is rotated. The rotation of the turntable 59 will drive the drive rod 52 to rotate. The drive rod 52 moves in the bracket 51 with the help of the thread. When the drive rod 52 moves, it will drive the drive block 53 to move. When the drive block 53 moves, it will drive the support rod 54 to move. When the support rod 54 moves, it will drive the support plate 55 to move, thereby driving the pipeline to move.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A gate valve for hydraulic engineering, comprising a valve body (1), characterized in that: Both ends of the valve body (1) are fixedly connected with flanges (2), and both ends of the valve body (1) are provided with valve ports (3). The surface of the valve body (1) is provided with a filter structure (4), and the filter structure (4) comprises a filter box (401). The filter box (401) is connected to the surface of the valve body (1), and a box port (402) is provided on one side of the filter box (401). A rectangular plate (403) is slidably inserted in the filter box (401), and a filter plate (404) is installed on the surface of the rectangular plate (403). A box cover (405) is fixedly connected to one side of the rectangular plate (403), and bolts (406) are threadedly connected to both sides of the box cover (405).

2. A gate valve for water conservancy projects according to claim 1, characterized in that: A handle (407) is fixedly connected to the surface of the box cover (405), and the vertical section of the handle (407) is "U"-shaped.

3. A gate valve for water conservancy projects according to claim 1, characterized in that: A side of the rectangular plate (403) away from the box cover (405) is fixedly connected to a limiting plate (408), and the size of the limiting plate (408) is adapted to the size of the inner wall of the filter box (401).

4. A gate valve for water conservancy projects according to claim 1, characterized in that: The surface of the filter plate (404) is rotatably connected to a rotating shaft (409), the arc surface of the rotating shaft (409) is rotatably connected to a circular ring (410), and the arc surface of the circular ring (410) is fixedly connected to a scraper (411).

5. A gate valve for water conservancy projects according to claim 1, characterized in that: The arc surface of the valve body (1) is provided with a support structure (5), and the support structure (5) includes a bracket (51), and the bracket (51) is fixedly connected to the arc surface of the valve body (1); two driving rods (52) are threadedly penetrated on the surface of the bracket (51); one end of the two driving rods (52) is rotatably connected to a driving block (53), one side of the driving block (53) is fixedly connected to a support rod (54), one end of the support rod (54) away from the driving block (53) is fixedly connected to a support plate (55), and one end of the driving rod (52) away from the driving block (53) is fixedly connected to a turntable (59).

6. A gate valve for water conservancy projects according to claim 5, characterized in that: Two round rods (56) are fixedly connected to the surface of the support plate (55), and a pressure plate (58) is slidably connected to the arc surface of the round rod (56). A spring (57) is sleeved on the arc surface of the round rod (56), and two ends of the spring (57) are respectively fixedly connected to the support plate (55) and the pressure plate (58).

7. A gate valve for water conservancy projects according to claim 6, characterized in that: A groove is provided on one side of the support plate (55) and the pressing plate (58) close to each other, and the vertical cross section of the groove is arc-shaped.

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