Gate valve

Abstract

The utility model relates to a gate valve which comprises a valve body, and flanges are integrally formed on the two sides of a flow channel of the valve body. The supporting seat is used for placing the valve body, the supporting seat is in threaded connection with a lifting table facing the bottom wall of the valve body, and the lifting table is arranged on the supporting seat in a lifting mode in the height direction of the supporting seat; an inserting column facing the lifting table is integrally formed on the bottom wall of the valve body, an inserting groove facing the inserting column is formed in the side wall of the top of the lifting table, and the inserting column is used for being matched with the inserting groove in an inserting mode. When the inserting columns are inserted into the inserting grooves, the bottom wall of the valve body makes contact with the top wall of the lifting table. The flange positioning device has the effects of being convenient to install and facilitating flange positioning.

Description

Technical Field

[0001] This application relates to the technical field of gate valves, and in particular to a gate valve. Background Technology

[0002] Gate valves, also known as sluice gate valves or gate valves, are a common type of valve mainly used in pipeline systems to regulate the flow of fluids (such as water, gas, and oil). Their basic working principle involves opening or closing the flow path by raising or lowering a component called a gate (or valve). When the gate is perpendicular to the fluid passage, the valve is closed, preventing fluid from passing through; when the gate is parallel to the fluid passage, the valve is fully open, allowing fluid to flow through without obstruction.

[0003] In related technologies, the flow channels at both ends of a gate valve are usually connected to an external pipeline using flanges. However, when installing a gate valve, if there is a certain height difference between the pipeline and the ground, the gate valve needs to be kept in an elevated state to ensure that the flanges on both sides of the gate valve are aligned with the flanges on the pipeline mounting surface. However, since some gate valves are relatively heavy, multiple people are needed to complete the installation work, which brings considerable inconvenience to the installation work. Utility Model Content

[0004] This application provides a gate valve that is convenient to install on a pipeline, and offers the advantages of easy and quick installation and easy flange positioning.

[0005] The gate valve provided in this application adopts the following technical solution:

[0006] A gate valve includes a valve body with flanges integrally formed on both sides of a flow channel; it also includes a support for placing the valve body, a lifting platform threadedly connected to the support and facing the bottom wall of the valve body, the lifting platform being vertically mounted on the support along the height direction of the support; the bottom wall of the valve body has an integrally formed insertion post facing the lifting platform, and the top side wall of the lifting platform has an insertion groove facing the insertion post, the insertion post being used to interlock with the insertion groove; when the insertion post is inserted into the insertion groove, the bottom wall of the valve body and the top wall of the lifting platform come into contact with each other.

[0007] Preferably, the support base is further provided with support frames located on both sides of the lifting platform. The support frames are slidably mounted on the support base along the lifting direction of the lifting platform. The support frames are opposite to the flanges one by one. A lifting plate is movably sleeved on the lifting platform. The support frames are respectively located at both ends of the lifting plate. The lifting platform drives the support frames on both sides to rise and fall through the lifting plate.

[0008] Preferably, a buffer spring is sleeved on the outside of the support frame, and the buffer spring extends and retracts along the lifting direction of the support frame; one end of the buffer spring abuts against the support seat, and the other end of the buffer spring abuts against the lifting plate.

[0009] Preferably, the support frame is provided with limiting plates, which are symmetrically arranged on both sides of the support frame. The limiting plates on both sides are used to limit the flanges that are spliced ​​together on the support frame.

[0010] Preferably, the limiting plate has a through hole for fasteners to pass through.

[0011] Preferably, an operating handle is coaxially arranged at the bottom of the lifting platform, and the operating handle is used to control the rotation of the lifting platform.

[0012] Preferably, an operating port is provided on the outer side wall of the support base, and the operating port is directly opposite the lifting platform.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] When there is a height difference between the pipeline and the ground, first place the support between the two pipelines, then adjust the lifting platform to a suitable height by rotating it, and then insert the valve body into the insertion slot of the lifting platform through the bottom insertion post. At the same time, ensure that the flanges on both sides are placed on the corresponding support frames. With the cooperation of the support and the lifting platform, the valve body can be kept at the appropriate installation height, which facilitates installation, eliminates the need for multiple people to cooperate, makes installation more convenient, and facilitates flange positioning.

[0015] When flanges are spliced ​​together, the limiting plates on both sides can limit the valve body flange and the pipeline flange, thereby effectively preventing the valve body and pipeline from separating from each other and improving the stability and reliability of the valve body during installation.

[0016] The height of the lifting platform can be easily adjusted using the operating handle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0018] Figure 2 yes Figure 1 A schematic diagram of a partial structural explosion;

[0019] Figure 3 This is a partial structural diagram highlighting the lifting platform and support frame inside the support base.

[0020] Explanation of reference numerals in the attached drawings: 1. Valve body; 10. Flange; 11. Insertion post; 2. Support base; 20. Operating port; 3. Lifting platform; 30. Insertion groove; 300. Lifting screw; 31. Operating handle; 4. Support frame; 40. Limiting plate; 41. Perforation; 5. Lifting plate; 6. Buffer spring. Detailed Implementation

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] This application discloses a gate valve.

[0023] Reference Figure 1 , Figure 2 The gate valve includes a valve body 1, with flanges 10 integrally formed on both sides of the flow channel of the valve body 1. It also includes a support base 2 for placing the valve body 1, on which a lifting platform 3 facing the bottom wall of the valve body 1 is mounted. A lifting screw 300 is coaxially rotatably mounted on the bottom of the lifting platform 3, and the bottom of the lifting platform 3 is threadedly connected to the support base 2 via the lifting screw 300. Rotating the lifting screw 300 causes the lifting platform 3 to rise and fall along the height direction of the support base 2. An insert post 11 is integrally formed on the bottom wall of the valve body 1 facing the top of the lifting platform 3. An insert groove 30 is provided on the top side wall of the lifting platform 3 facing the insert post 11, allowing the insert post 11 to be inserted into the lifting platform 3 from top to bottom. The valve body 1 is fixed and limited on the lifting platform 3 through the mutual insertion and engagement of the insert post 11 and the insert groove 30, at which point the bottom wall of the valve body 1 and the top wall of the lifting platform 3 are in contact.

[0024] like Figure 2 , Figure 3 As shown, the support base 2 is also equipped with two support frames 4 located on both sides of the lifting platform 3. The support frames 4 are slidably mounted on the support base 2 along the lifting direction of the lifting platform 3, and the top of the support frames 4 is respectively opposite to the flanges 10 of the valve body 1. The support frames 4 are used to place the respective flanges 10, thereby supporting the flanges 10. The lifting screw 300 is movably fitted with a lifting plate 5 located in the support base 2 at the end away from the lifting platform 3. The lifting plate 5 can rotate relative to the lifting screw 300. The support frames 4 are respectively located at both ends of the lifting plate 5, and the bottom of the support frames 4 is movably inserted through the lifting plate 5 along the height direction of the support base 2.

[0025] like Figure 2 , Figure 3 As shown, a buffer spring 6 is sleeved on the outside of the support frame 4 and located inside the support base 2. The buffer spring 6 extends and retracts along the lifting direction of the support frame 4. The upper end of the buffer spring 6 abuts against the outer wall of the support frame 4, and the lower end of the buffer spring 6 abuts against the lifting plate 5. The buffer spring 6 is used to push the lifting plate 5 to press it against the bottom of the lifting screw 300 in a direction away from the upper lifting platform 3.

[0026] like Figure 2 , Figure 3 As shown, an operating handle 31 is coaxially fixed at the bottom of the lifting screw 300, and the operating handle 31 is used to control the rotation of the lifting screw 300. When the lifting screw 300 is rotated by the operating handle 31, the lifting platform 3 can rise and fall along the height direction of the support base 2 under the drive of the lifting screw 300. At this time, the two side support frames 4 will rise and fall synchronously with the lifting platform 3 under the drive of the lifting plate 5. An operating port 20 is provided on the outer wall of the support base 2, which is directly opposite the lifting platform 3, and the operating port 20 facilitates the installation personnel to control the operating handle 31.

[0027] like Figure 2 , Figure 3 As shown, two opposing limiting plates 40 are fixedly installed on the support frame 4, and the limiting plates 40 are symmetrically arranged on both sides of the support frame 4. The limiting plates 40 on both sides are used to limit the flanges 10 that are spliced ​​together on the support frame 4. The limiting plates 40 also have through holes 41 for fasteners to pass through. By passing the fasteners through the through holes 41 and the mounting holes of each flange 10 in sequence, the support frame 4 and the flanges 10 can be connected and fixed. Under the limiting of the two limiting plates 40 on both sides, the two flanges 10 that are spliced ​​together can be limited, thereby effectively preventing the valve body 1 from separating from the pipeline, and improving the stability and reliability of the valve body 1 during installation.

[0028] The implementation principle is as follows: When there is a certain height difference between the pipeline and the ground, the support base 2 is first placed between the two pipelines. Then, the lifting platform 3 is adjusted to a suitable height by rotating the lifting screw 300. Then, the valve body 1 is inserted into the insertion slot 30 of the lifting platform 3 through the bottom insertion post 11. At the same time, ensure that the flanges 10 on both sides are placed on the corresponding support frame 4. At this time, with the cooperation of the support base 2 and the lifting platform 3, the valve body 1 can be kept at an appropriate installation height, which facilitates the installation, eliminates the need for multiple people to cooperate, and makes the installation and positioning of the flange 10 more convenient.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gate valve comprising a valve body (1), flanges (10) being integrally formed on both sides of the flow passage of the valve body (1); characterized in that: Also include a support seat (2) for the valve body (1) placed, the support seat (2) is threadedly connected with the lifting platform (3) towards the bottom wall of the valve body (1), the lifting platform (3) is lifted and arranged on the support seat (2) along the height direction of the support seat (2); The bottom wall of the valve body (1) is integrally formed with the plug-in column (11) towards the lifting platform (3), the top side wall of the lifting platform (3) is provided with the plug-in slot (30) towards the plug-in column (11), the plug-in column (11) is used for mutually plug-in cooperation with the plug-in slot (30); When the plug-in column (11) is inserted into the plug-in slot (30), the bottom wall of the valve body (1) and the top wall of the lifting platform (3) are in contact with each other.

2. The gate valve of claim 1, wherein: The support seat (2) is also provided with support frames (4) located on both sides of the lifting platform (3) respectively, the support frames (4) are slidingly arranged on the support seat (2) along the lifting direction of the lifting platform (3); The support frame (4) is opposite to the flange (10), the lifting platform (3) movably sheaths the lifting plate (5), the support frame (4) is arranged at both ends of the lifting plate (5) respectively, and the lifting platform (3) drives the two side support frames (4) to lift through the lifting plate (5).

3. The gate valve of claim 2, wherein: The support frame (4) is externally sheathed with a buffer spring (6), and the buffer spring (6) is telescopic along the lifting direction of the support frame (4); One end of the buffer spring (6) is in contact with the support seat (2), and the other end of the buffer spring (6) is in contact with the lifting plate (5).

4. The gate valve of claim 3, wherein: The support frame (4) is provided with a limiting plate (40), the limiting plate (40) is symmetrically arranged on both sides of the support frame (4), and the limiting plate (40) on both sides is used for limiting the flange (10) spliced with each other on the support frame (4).

5. The gate valve of claim 4, wherein: The limiting plate (40) is provided with a through hole (41) for the fastener to pass through.

6. The gate valve of claim 1, wherein: The bottom of the lifting platform (3) is coaxially provided with an operating handle (31), and the operating handle (31) is used for controlling the rotation of the lifting platform (3).

7. The gate valve of claim 6, wherein: The outer side wall of the support seat (2) is provided with an operation port (20), and the operation port (20) is opposite to the lifting platform (3).

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