Anti-scouring stop valve

Abstract

The utility model discloses an anti-scouring stop valve, and relates to the technical field of stop valves. The anti-scouring stop valve comprises a stop valve body, a fixing seat is fixedly connected to the stop valve body, a sleeve seat is arranged on the fixing seat, a clamping seat is movably clamped in the sleeve seat, a bearing seat is fixedly connected to the clamping seat, the bearing seat is movably inserted in the fixing seat, and a pressure reducer is arranged on the bearing seat. According to the anti-scouring stop valve, the design of the fixing base, the sleeve base and the clamping base is adopted, the pressure reducer can be conveniently installed in a channel of the stop valve body, pressure reduction is conducted on fluid, and therefore the internal pressure of the stop valve body is reduced, the anti-scouring capacity of materials in the stop valve body is improved, the maintenance cost is reduced, and the locking mechanism is matched for design. The fixing seat and the sleeve seat are convenient to clamp and lock, so that the clamping seat and the pressure reducer are convenient to disassemble and assemble and easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically to an anti-erosion gate valve. Background Technology

[0002] The working principle of a gate valve is to use the rise and fall of the valve stem to drive the valve disc, thereby changing the distance between the valve disc and the valve seat, and thus achieving the interception and regulation of fluid. Specifically, when the valve stem rises, the gap between the valve disc and the valve seat increases, allowing fluid to pass through; when the valve stem falls, the gap between the valve disc and the valve seat decreases until it is completely closed, thereby preventing the fluid from passing through.

[0003] Currently, when the fluid flow rate is too high, it can easily cause excessive stress on the internal structure of the gate valve. During the opening and closing process, when the medium passes through the valve body, it generates a large scouring force on the valve disc and valve seat sealing surfaces. The sealing surfaces are subjected to scouring and cavitation by the high-speed medium, which can easily lead to leakage and poor sealing reliability, causing significant impact on pipeline system equipment. Therefore, many existing gate valves have weak scouring resistance and require regular maintenance, increasing maintenance costs and manpower. In view of the shortcomings of the existing technology, this utility model provides a scouring-resistant gate valve to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-erosion gate valve. It employs a design of a fixed seat, a sleeve seat, and a snap-fit ​​seat, facilitating the installation of a pressure reducer within the gate valve body's channel to reduce fluid pressure. This reduces the internal pressure of the gate valve body, enhances the erosion resistance of the internal material, and lowers maintenance costs. Furthermore, the locking mechanism design allows for easy snap-fit ​​locking of the fixed seat and sleeve seat, making the snap-fit ​​seat and pressure reducer easy to assemble, disassemble, and maintain.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-erosion shut-off valve, comprising a shut-off valve body, a fixed seat fixedly connected to the shut-off valve body, a sleeve provided on the fixed seat, and a snap-fit ​​seat movably engaged inside the sleeve;

[0006] A support seat is fixedly connected to the card holder, and the support seat is movably inserted into the inside of the fixed seat. A pressure reducer is provided on the support seat.

[0007] The pressure reducer is provided with multiple sets of pressure reducing holes, and the snap-fit ​​seat is provided with a locking mechanism for fixing the position of the sleeve seat.

[0008] Preferably, the locking mechanism includes an adjusting block slidably connected inside the snap-fit ​​seat and a locking rod fixedly connected to the adjusting block, the locking rod passing through the snap-fit ​​seat and movably inserted into the inside of the sleeve.

[0009] Preferably, the locking mechanism further includes a double-threaded screw rotatably connected to the locking seat and a guide rail rod fixedly connected inside the locking seat. The adjusting block is threadedly connected to the double-threaded screw and slidably connected to the guide rail rod.

[0010] Preferably, a rotating handle is fixedly connected to the double-threaded screw.

[0011] Preferably, a filter screen is movably engaged inside the fixed base, and a locking post for limiting the movement of the filter screen is fixedly connected between the bearing base and the locking base.

[0012] Preferably, a mounting ring is fixedly connected to the pressure reducer, and an embedding groove is provided on the bearing seat, with the mounting ring movably engaged in the embedding groove.

[0013] This utility model discloses an anti-erosion shut-off valve, which has the following beneficial effects:

[0014] This erosion-resistant gate valve adopts a design of fixed seat, sleeve seat, and snap-fit ​​seat, which facilitates the installation of pressure reducer in the channel of the gate valve body to reduce fluid pressure, thereby reducing the internal pressure of the gate valve body, improving the erosion resistance of the internal material of the gate valve body, reducing maintenance costs, and the design of locking mechanism makes it easy to snap and lock the fixed seat and sleeve seat, thus making it easy to disassemble and install the snap-fit ​​seat and pressure reducer and easy to maintain. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a disassembly diagram of the card holder of this utility model;

[0018] Figure 3 This is a disassembly diagram of the filter screen of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional view of the pressure reducer of this utility model;

[0021] Figure 6This is a schematic diagram of the structure of the snap-fit ​​post of this utility model.

[0022] In the diagram: 1. Gate valve body; 2. Fixed seat; 3. Sleeve seat; 4. Snap-fit ​​seat; 41. Bearing seat; 411. Embedded groove; 42. Snap-fit ​​post; 5. Pressure reducer; 51. Pressure reducing hole; 52. Mounting ring; 6. Filter screen; 7. Locking mechanism; 71. Adjusting block; 72. Locking rod; 73. Double threaded screw; 731. Rotating handle; 74. Guide rail rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This application provides an anti-erosion gate valve, which solves the problem that many existing gate valves have weak anti-erosion capabilities, require regular inspection and maintenance, and increase maintenance costs and manpower.

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] This utility model discloses an anti-erosion shut-off valve, according to the attached... Figure 1-6 As shown, it includes a shut-off valve body 1, a fixed seat 2 is fixedly connected to the shut-off valve body 1, a sleeve 3 is provided on the fixed seat 2, and a snap-fit ​​seat 4 is movably engaged inside the sleeve 3;

[0027] A bearing seat 41 is fixedly connected to the card holder 4. The bearing seat 41 is movably inserted into the inside of the fixed seat 2. A pressure reducer 5 is provided on the bearing seat 41.

[0028] The pressure reducer 5 is provided with multiple sets of pressure reducing holes 51, and the snap-fit ​​seat 4 is provided with a locking mechanism 7 for fixing the position of the sleeve 3.

[0029] This erosion-resistant shut-off valve adopts a design of fixed seat 2, sleeve seat 3 and snap-fit ​​seat 4, which facilitates the installation of pressure reducer 5 in the channel of shut-off valve body 1 to reduce fluid pressure, thereby reducing the internal pressure of shut-off valve body 1, improving the erosion resistance of the internal material of shut-off valve body 1, reducing maintenance costs, and with the design of locking mechanism 7, fixed seat 2 and sleeve seat 3 can be easily snapped and locked, thus making snap-fit ​​seat 4 and pressure reducer 5 easy to disassemble and install, and easy to maintain.

[0030] A mounting ring 52 is fixedly connected to the pressure reducer 5, and an embedding groove 411 is provided on the bearing seat 41. The mounting ring 52 is movably engaged in the embedding groove 411. The pressure reducer 5 has a simple structure and uses multiple sets of funnel-shaped pressure reducing holes 51 to reduce the pressure of the fluid. The fluid has a high flow velocity when it first enters the fixed seat 2. When it passes through the funnel-shaped pressure reducing hole 51, the cross-section of the fluid increases after passing through the pressure reducing hole 51, so the flow velocity decreases and the pressure is reduced.

[0031] The device, through the design of the mounting ring 52 and the embedding groove 411, makes the installation of the pressure reducer 5 convenient. The mounting ring 52 is directly fixed inside the embedding groove 411 with bolts.

[0032] The locking mechanism 7 includes an adjusting block 71 that is slidably connected inside the snap-fit ​​seat 4 and a locking rod 72 that is fixedly connected to the adjusting block 71. The locking rod 72 passes through the snap-fit ​​seat 4 and is movably inserted into the sleeve 3. The locking mechanism 7 also includes a double threaded screw 73 that is rotatably connected to the snap-fit ​​seat 4 and a guide rail rod 74 that is fixedly connected inside the snap-fit ​​seat 4. The adjusting block 71 is threadedly connected to the double threaded screw 73 and slidably connected to the guide rail rod 74.

[0033] The locking mechanism 7 in this device has a simple structure. When the locking mechanism 7 is used to fix the position of the sleeve 3 and the snap-fit ​​seat 4, the sleeve 3 and the snap-fit ​​seat 4 are snapped together first. Then, the double threaded screw 73 is rotated so that the double threaded screw 73 drives the adjusting block 71 to move. The adjusting block 71 drives the locking rod 72 to move. Finally, the locking rod 72 is inserted into the inside of the sleeve 3 so that the snap-fit ​​seat 4 and the sleeve 3 are snapped together and locked.

[0034] A rotating handle 731 is fixedly connected to the double threaded screw 73. The device makes it easy and effortless to rotate the double threaded screw 73 by means of the rotating handle 731.

[0035] The filter screen 6 is movably engaged inside the fixed base 2. A locking post 42 that limits the movement of the filter screen 6 is fixedly connected between the support base 41 and the locking base 4. Through the design of the filter screen 6, this device facilitates the addition of filtration function to the fluid inside the fixed base 2, thereby improving the performance of the shut-off valve body 1. After the filter screen 6 is engaged inside the fixed base 2, it is engaged by the support base 41. The support base 41 drives the locking post 42 to move, and the locking post 42 is used to limit the movement of the filter screen 6.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An erosion-resistant shut-off valve, comprising a shut-off valve body (1), characterized in that, A fixed seat (2) is fixedly connected to the main body (1) of the shut-off valve. A sleeve (3) is provided on the fixed seat (2). A snap-fit ​​seat (4) is movably engaged inside the sleeve (3). A bearing seat (41) is fixedly connected to the card holder (4), and the bearing seat (41) is movably inserted into the inside of the fixed seat (2). A pressure reducer (5) is provided on the bearing seat (41). The pressure reducer (5) is provided with multiple sets of pressure reducing holes (51), and the snap-fit ​​seat (4) is provided with a locking mechanism (7) for fixing the position of the sleeve seat (3).

2. The anti-erosion shut-off valve according to claim 1, characterized in that, The locking mechanism (7) includes an adjusting block (71) slidably connected inside the snap-fit ​​seat (4) and a locking rod (72) fixedly connected to the adjusting block (71). The locking rod (72) passes through the snap-fit ​​seat (4) and is movably inserted into the sleeve (3).

3. The anti-erosion shut-off valve according to claim 2, characterized in that, The locking mechanism (7) further includes a double-threaded screw (73) rotatably connected to the locking seat (4) and a guide rail (74) fixedly connected inside the locking seat (4). The adjusting block (71) is threadedly connected to the double-threaded screw (73) and slidably connected to the guide rail (74).

4. The anti-erosion shut-off valve according to claim 3, characterized in that, A rotating handle (731) is fixedly connected to the double-threaded lead screw (73).

5. The anti-erosion shut-off valve according to claim 1, characterized in that, The filter screen (6) is movably engaged inside the fixed base (2), and a locking post (42) for limiting the position of the filter screen (6) is fixedly connected between the bearing base (41) and the locking base (4).

6. The anti-erosion shut-off valve according to claim 1, characterized in that, The pressure reducer (5) is fixedly connected to an installation ring (52), and the bearing seat (41) is provided with an embedding groove (411). The installation ring (52) is movably engaged in the embedding groove (411).

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