Pneumatic gate valve
By adding a slag discharge seat and a linear motor-driven slag discharge plate to the gate valve, the problems of particulate matter accumulation and leakage at the sealing position of the gate valve are solved, realizing the automatic slag discharge function and ensuring the long-term normal operation of the gate valve.
Patent Information
- Application Number
- CN202520130293.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-20
AI Technical Summary
When existing gate valves cut off the flow path of particulate media, particulate media can easily enter the sealing position between the gate body and the valve seat, leading to leakage and accumulation, which affects normal use.
A slag discharge seat is added to one side of the valve seat, and equipped with a linear motor and a slag discharge trough. The slag discharge plate is driven by the linear motor to push out the residual particles, thereby realizing automatic slag discharge and ensuring that no particles accumulate at the sealing position.
It effectively prevents the accumulation of particulate matter in the sealing position, eliminates leakage, and ensures the long-term normal use of the gate valve.
Smart Images
Figure CN223622239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gate valve technology, specifically a pneumatic gate valve. Background Technology
[0002] Pneumatic gate valves are a primary control device for the flow or conveying of powders, granules, pellets, and small pieces of materials, used to control flow changes or quickly shut off the flow. They are widely used in industries such as building materials, metallurgy, mining, power, chemicals, glass, light industry, and grain for controlling silo tops, bottoms, and inlets / outlets. They are ideal for controlling large flow changes, frequent starts, and rapid shut-off.
[0003] When existing gate valves cut off the flow path of particulate media, particulate media can easily enter the sealing position between the gate body and the valve seat. The presence of particulate media can easily lead to valve body leakage. Over time, particulate matter will accumulate at the sealing position, affecting the normal use of the gate valve. Utility Model Content
[0004] The purpose of this invention is to provide a pneumatic gate valve to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic gate valve, comprising a valve seat, a gate seat, and a cylinder. A slag discharge seat is provided on one side of the valve seat. A connecting seat is fixedly connected to one end of the cylinder push rod. The connecting seat is fixedly connected to the gate body, and the gate body is disposed within the gate seat. A linear motor is installed on one side of the slag discharge seat. The linear motor includes a slide table. A slag discharge groove is provided inside the slag discharge seat. A slag discharge plate is placed inside the slag discharge groove. The slag discharge plate and the slide table are fixedly connected by a drive rod.
[0006] The gate seat has sliding seats on both inner walls, and the sliding seats are slidably connected to the gate body.
[0007] The slag discharge plate and the slag discharge trough are slidably connected.
[0008] The upper end face of the valve seat is provided with a feed hopper.
[0009] The lower end face of the valve seat is provided with a discharge hopper.
[0010] Both the feed hopper and the discharge hopper are equipped with flanges at one end.
[0011] The gate seat has mounting lugs welded and fixed on both sides, and the mounting lugs have slots.
[0012] The gate seat has a sliding groove on its side near the valve seat, and one end of the gate body passes through the sliding groove and is slidably connected to the sliding groove.
[0013] The connecting seat and the gate body are fixedly connected by screws, and a cover plate is provided on the gate seat.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention adds a slag discharge seat to one side of the valve seat. When the gate body is closed under the drive of the cylinder, some particles will enter the slag discharge groove of the slag discharge seat. When the gate valve is reopened, the gate body is reset under the drive of the cylinder, and the slag discharge plate moves linearly under the drive of the linear motor to push out the particles remaining in the slag discharge groove, thereby realizing automatic slag discharge and ensuring that there is no accumulation of particles at the sealing position between the gate body and the valve seat, thereby eliminating the leakage caused by the accumulation of particles and ensuring the long-term normal use of the gate valve. Attached Figure Description
[0016] Figure 1 This is a top view of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a bottom view.
[0018] Figure 3 This is a schematic diagram of the internal structure of the gate seat of this utility model;
[0019] Figure 4 This is a schematic diagram of the open state of this utility model;
[0020] Figure 5 This is a schematic diagram of the closed state of this utility model;
[0021] Figure 6 This is a schematic diagram of the slag unloading state of this utility model.
[0022] In the diagram: 1. Valve seat; 2. Gate seat; 3. Cylinder; 4. Slag discharge seat; 5. Gate body; 11. Feed hopper; 12. Discharge hopper; 21. Slide seat; 22. Mounting lug; 23. Cover plate; 31. Connecting seat; 41. Linear motor; 42. Slide table; 43. Drive rod; 44. Slag discharge plate; 45. Slag discharge trough. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-6 This utility model provides a technical solution: a pneumatic gate valve, including a valve seat 1, a gate seat 2, and a cylinder 3. The cylinder 3 uses compressed air as a power source. A slag discharge seat 4 is provided on one side of the valve seat 1. One end of the cylinder 3 push rod is fixedly connected to a connecting seat 31. The connecting seat 31 is fixedly connected to the gate body 5. The opening and closing of the gate valve is controlled by controlling the movement of the gate body 5. The gate body 5 is set inside the gate seat 2. A linear motor 41 is installed on one side of the slag discharge seat 4. The linear motor 41 includes a slide table 42. A slag discharge groove 45 is opened inside the slag discharge seat 4. A slag discharge plate 44 is built into the slag discharge groove 45. The slag discharge plate 44 and the slide table 42 are fixedly connected by a drive rod 43.
[0025] When cylinder 3 is working, its push rod drives connecting seat 31, which in turn drives gate body 5 to move linearly. By controlling the linear movement position of gate body 5, the opening and closing actions of the gate valve are controlled. The opening state of the gate valve is as follows: Figure 4 As shown, the closed state of the gate valve is as follows: Figure 5 As shown.
[0026] A slag discharge seat 4 is added to one side of the valve seat 1. When the linear motor 41 is working, it drives the drive rod 43 to move linearly through its slide table 42. The drive rod 43 drives the slag discharge plate 44 to move linearly along the slag discharge trough 45.
[0027] like Figure 5 As shown, when the gate body 5 closes under the drive of the cylinder 3, some particles will enter the slag discharge trough 45 of the slag discharge seat 4, such as... Figure 6 As shown, when the gate valve reopens, the gate body 5 is reset under the drive of the cylinder 3, and the slag discharge plate 44 moves linearly under the drive of the linear motor 41, pushing out the residual particles inside the slag discharge trough 45, realizing automatic slag discharge, ensuring that there are no particles accumulating at the sealing position between the gate body 5 and the valve seat 1, thereby eliminating the leakage caused by particle accumulation and ensuring the long-term normal use of the gate valve.
[0028] Among them, slide seats 21 are provided on both inner walls of the gate seat 2, and the slide seats 21 are slidably connected to the gate body 5, such as Figure 3As shown, the gate body 5 slides along the slide block 21 under the drive of the cylinder 3. The slide block 21 limits and guides the movement direction of the gate body 5, ensuring the consistency of the position of the gate body 5 each time the valve is closed and opened.
[0029] The slag discharge plate 44 is slidably connected to the slag discharge trough 45. The slag discharge plate 44 can slide along the slag discharge trough 45 under the drive of the linear motor 41. The slag discharge trough 45 limits and guides the movement direction of the slag discharge plate 44. The slag discharge plate 44 can push out all the residual particles in the slag discharge trough 45.
[0030] The upper end face of the valve seat 1 is provided with a feed hopper 11, which is connected to the feed pipe. The material enters the feed hopper 11 through the feed pipe.
[0031] The valve seat 1 has a discharge hopper 12 on its lower end face. The discharge hopper 12 of the valve seat 1 is connected to the discharge pipeline, and the material enters the discharge hopper 12 through the discharge pipeline.
[0032] Both the feed hopper 11 and the discharge hopper 12 are equipped with flanges at one end. The flange at the feed hopper 11 connection end facilitates the connection between the feed hopper 11 and the feed pipeline, while the flange at the discharge hopper 12 connection end facilitates the connection between the discharge hopper 12 and the discharge pipeline. The overall pneumatic gate valve is easy to install and disassemble with the pipeline, which is conducive to maintenance.
[0033] The gate seat 2 has mounting lugs 22 welded and fixed on both sides. The mounting lugs 22 have slots. When installing and fixing the overall pneumatic gate valve, the gate seat 2 is installed and fixed by the mounting lugs 22, which can realize the installation and fixing of the overall pneumatic gate valve. The installation and disassembly of the overall pneumatic gate valve is convenient.
[0034] The gate seat 2 has a groove on its side near the valve seat 1, and one end of the gate body 5 passes through the groove and is slidably connected to it. Figure 4 and Figure 5 As shown, the gate body 5 moves linearly under the drive of the cylinder 3, cutting off the passage of the valve seat 1 through the gate body 5, thereby closing the gate valve. When the gate body 5 is reset under the drive of the cylinder 3, the passage of the valve seat 1 is opened, thereby opening the gate valve.
[0035] The connecting seat 31 is fixedly connected to the gate body 5 by screws. The gate seat 2 is provided with a cover plate 23 to protect the gate body 5. The gate body 5 and the connecting seat 31 are detachable, which makes it easy to install and remove the gate body 5 and facilitates maintenance and replacement.
[0036] Working principle: In use, the overall pneumatic gate valve is installed and fixed in the designated position. The feed hopper 11 of the valve seat 1 is connected to the feed pipe, and the material enters the feed hopper 11 through the feed pipe. The discharge hopper 12 of the valve seat 1 is connected to the discharge pipe, and the material enters the discharge hopper 12 through the discharge pipe. When the cylinder 3 is working, its push rod drives the connecting seat 31, which in turn drives the gate body 5 to move linearly. By controlling the linear movement position of the gate body 5, the opening and closing actions of the gate valve are controlled. When the gate body 5 is located at... Figure 4 When the working state shown is as indicated, the gate valve is in the open state, and when the gate body 5 is in the position shown... Figure 5 When the gate valve is in the working state shown, and the gate body 5 is closed under the drive of the cylinder 3, some particles will enter the slag discharge groove 45 of the slag discharge seat 4. Figure 6 As shown, when the gate valve reopens, the gate body 5 is reset under the drive of the cylinder 3, and the slag discharge plate 44 moves linearly under the drive of the linear motor 41, pushing out the residual particles inside the slag discharge trough 45, realizing automatic slag discharge, and ensuring that there are no particles accumulating at the sealing position between the gate body 5 and the valve seat 1.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pneumatic gate valve, comprising a valve seat (1), a gate seat (2), and a cylinder (3), characterized in that: A slag discharge seat (4) is provided on one side of the valve seat (1). A connecting seat (31) is fixedly connected to one end of the cylinder (3) push rod. The connecting seat (31) is fixedly connected to the gate body (5), and the gate body (5) is located in the gate seat (2). A linear motor (41) is installed on one side of the slag discharge seat (4). The linear motor (41) includes a slide (42). A slag discharge groove (45) is opened inside the slag discharge seat (4). A slag discharge plate (44) is built into the slag discharge groove (45). The slag discharge plate (44) and the slide (42) are fixedly connected by a drive rod (43).
2. A pneumatic gate valve according to claim 1, characterized in that: Slide seats (21) are provided on both inner walls of the gate seat (2), and the slide seats (21) are slidably connected to the gate body (5).
3. A pneumatic gate valve according to claim 1, characterized in that: The slag discharge plate (44) and the slag discharge trough (45) are slidably connected.
4. A pneumatic gate valve according to claim 1, characterized in that: The upper end face of the valve seat (1) is provided with a feed hopper (11).
5. A pneumatic gate valve according to claim 4, characterized in that: The lower end face of the valve seat (1) is provided with a discharge hopper (12).
6. A pneumatic gate valve according to claim 5, characterized in that: A flange is provided at one end of both the feed hopper (11) and the discharge hopper (12).
7. A pneumatic gate valve according to claim 1, characterized in that: The gate seat (2) has mounting lugs (22) welded and fixed on both sides, and the mounting lugs (22) have slots.
8. A pneumatic gate valve according to claim 1, characterized in that: The gate seat (2) has a sliding groove on the side near the valve seat (1), and one end of the gate body (5) passes through the sliding groove and is slidably connected to the sliding groove.
9. A pneumatic gate valve according to claim 1, characterized in that: The connecting seat (31) is fixedly connected to the gate body (5) by screws, and a cover plate (23) is provided on the gate seat (2).