Gate valve with protective scraper

Abstract

The gate valve comprises a valve body, an air cylinder fixing base is fixedly installed in the middle of one side of the valve body, a working air cylinder is fixedly installed on the side, away from the valve body, of the air cylinder fixing base, and the output end of the working air cylinder is fixedly connected with a piston rod. According to the gate valve with the protective scraping plate, the upper protective plate and the working insertion plate are arranged at intervals when the upper protective plate is daily placed, sliding contact between the working insertion plate and the upper protective plate is reduced when the working insertion plate is in opening and closing displacement, the working insertion plate is not prone to falling off, and the working insertion plate is not prone to falling off. The friction time of the upper protection plate is shortened, so that the abrasion degree is reduced, the service life of the upper protection plate is prolonged, and the sealing performance of the valve body is improved; when the working insertion plate is closed, the upper protection plate is pressed to be tightly attached to the working insertion plate, even if the upper protection plate is abraded, the tightly attached sealing performance can be improved through the pressure, and it is guaranteed that powder cannot enter the cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collector plug-in valves, in particular to a plug-in valve with a protective scraper. Background Art

[0002] Slide gate valves are currently widely used, primarily in automated equipment for various industrial production processes, specifically in the chemical and building materials industries. Battery recycling companies need to control the discharge volume of powder during the battery crushing process, requiring intermittent feeding, which is why they use slide gate valves. However, due to the long-term reciprocating motion, powder is inevitably drawn into the slide gate valve by the piston, causing damage to the valve disc and partially losing the intermittent feeding capability. Therefore, we propose a slide gate valve with a protective scraper to address this problem. Utility Model Content

[0003] The purpose of the utility model is to provide a gate valve with a protective scraper to solve the problems in the above background technology that powder enters the gate valve cavity causing wear and the gate valve cannot fully function.

[0004] The cam is fixedly provided with a valve body, and an air filter is installed on the cam face, and an air filter is installed on the cam face.

[0005] As a preferred technical solution of the present invention, a lower protective plate is threadedly connected to one side of the bottom end of the valve body close to the upper protective plate, and the lower protective plate is located at the bottom end of the working plug plate.

[0006] As a preferred technical solution of the present invention, a sealing ring is sleeved on the side of the piston rod close to the working inserting plate, and a wear-resistant ring is sleeved on the side of the piston rod close to the sealing ring.

[0007] As an optimal technical solution of the present invention, the two sides of the valve body are threadedly connected with a number of evenly distributed mounting screws, the side of the working cylinder away from the cylinder fixing seat is threadedly connected with a number of evenly distributed fixing screws, and the middle of the working cylinder is provided with an air intake pipe.

[0008] As a preferred technical solution of the present invention, the upper protective plate and the lower protective plate are both made of polytetrafluoroethylene material, and the upper protective plate and the lower protective plate are located on the same vertical line.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The upper protective plate is placed at a distance from the working plug plate during daily placement. The sliding contact between the working plug plate and the upper protective plate is reduced during opening and closing, and the friction time of the upper protective plate is reduced, thereby reducing wear and improving the service life of the upper protective plate and the sealing performance of the valve body.

[0011] 2. When the working plate is closed, the upper protective plate is pressed against the working plate. Even if the upper protective plate is worn, the pressure can improve the sealing performance to ensure that the powder cannot enter the cavity.

[0012] 3. When the working plate is closed, the guide rod can quickly press down the upper protective plate, so that the upper protective plate and the working plate surface are tightly sealed. The structure is simple and the operation is easy. It can quickly match the closing trajectory of the working plate and does not require the addition of new drive components. It is easy to use and can reduce energy consumption and costs.

[0013] 4. When the working plate retracts, the guide rod and piston rod can drive the upper protective plate to quickly separate from the surface of the working plate to reduce contact wear and facilitate next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the guide rod of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the lower protective plate of the utility model.

[0017] In the figure: 1. Valve body; 2. Action baffle; 3. Working plug-in plate; 4. Storage bin; 5. Piston rod; 6. Plug-in plate valve bin; 7. Working cylinder; 8. Inlet pipe; 9. Mounting screws; 10. Upper protective plate; 11. Pressure spring; 12. Guide rod; 13. Wear-resistant ring; 14. Sealing ring; 15. Cylinder fixing seat; 16. Fixing screws; 17. Lower protective plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-3 The utility model provides a kind of gate valve with protective scraper, comprising a valve body 1, a cylinder fixing seat 15 is fixedly installed in the middle of one side of the valve body 1, and a working cylinder 7 is fixedly installed on the cylinder fixing seat 15 away from the side of the valve body 1. The cylinder fixing seat 15 is convenient for installing the working cylinder 7. The output end of the working cylinder 7 is fixedly connected with the piston rod 5, and the working cylinder 7 drives the piston rod 5 to retract and retract. A material storage bin 4 is provided on the side of the valve body 1 away from the working cylinder 7, and a working gate plate 3 is slidably connected in the middle of the storage bin 4. A gate valve bin 6 is provided on the side of the valve body 1 close to the working cylinder 7. The end of the piston rod 5 away from the working cylinder 7 passes through the gate valve bin 6 and is fixedly connected to the working gate plate 3. When the piston rod 5 is driven to retract and retract by the working cylinder 7, the working gate plate 3 also follows the piston rod 5 to perform synchronous retracting and retracting movements. One side of the top of the piston rod 5 is rotatably connected with a guide rod 12, and the end of the guide rod 12 away from the piston rod 5 is fixedly installed with a pressure spring 11 When the valve body 1 is closed, the piston rod 5 of the working cylinder 7 is extended, and the guide rod 12 is contracted during the extension of the piston rod 5, and the upper guard plate 10 is slowly separated from the working guard plate 3; the valve body 1 is opened again, and the piston rod 5 of the working cylinder 7 is contracted, and the working guard plate 3 moves backward with the piston rod 5, and the guide rod 12 and the pressure spring 11 make the upper guard plate 10 move down and contact closely with the working guard plate 3 to prevent the powder from being brought back to the gate valve cavity, which is more convenient to use.

[0020] The bottom end of the valve body 1 is connected to the side of the upper protective plate 10 by a threaded connection with a lower protective plate 17, and the lower protective plate 17 is located at the bottom end of the working plug plate 3. The lower protective plate 17 is convenient for protecting the bottom end of the working plug plate 3. The upper protective plate 10 and the lower protective plate 17 are both made of polytetrafluoroethylene material. The polytetrafluoroethylene material has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stick properties, electrical insulation and good anti-aging endurance, which is convenient for long-term use of the upper protective plate 10 and the lower protective plate 17, and the upper protective plate 10 and the lower protective plate 17 are The lower protective plate 17 is located on the same vertical line. A sealing ring 14 is provided on the side of the piston rod 5 close to the working insert plate 3. A wear-resistant ring 13 is provided on the side of the piston rod 5 close to the sealing ring 14. The sealing ring 14 and the wear-resistant ring 13 improve the stability and wear resistance of the piston rod 5 during operation. An air intake pipe 8 is provided in the middle of the working cylinder 7. Several evenly distributed mounting screws 9 are threadedly connected on both sides of the valve body 1. A plurality of evenly distributed fixing screws 16 are threadedly connected on the side of the working cylinder 7 away from the cylinder fixing seat 15.

[0021] Working principle: The utility model is a gate valve with a protective scraper. When the user is in use, the upper protective plate 10 is placed at a distance from the working gate 3. The sliding contact between the working gate 3 and the upper protective plate 10 is reduced during the opening and closing displacement, and the friction time of the upper protective plate 10 is reduced to reduce the wear and tear, and improve the service life of the upper protective plate 10 and the sealing performance of the valve body 1. In the initial state, the valve body 1 is in the open state, the upper protective plate 10 and the working gate 3 are in a compacted state, and the piston rod 5 of the working cylinder 7 is in a contracted state; when the valve body 1 is closed, the working cylinder 7 is in a compressed state. When the piston rod 5 is extended, the working plate 3 is pushed forward. During the extension of the piston rod 5, the guide rod 12 contracts, and the upper protective plate 10 is slowly separated from the working plate 3; the valve body 1 is opened again. At this time, the piston rod 5 of the working cylinder 7 contracts, and the working plate 3 moves backward following the piston rod 5. The guide rod 12 and the pressure spring 11 make the upper protective plate 10 move downward and come into close contact with the working plate 3 to prevent the powder from being brought back into the plate valve cavity. The structure is simple and the operation is simple. It can quickly match the closing trajectory of the working plate 3 without adding new driving components. It is easy to use and can reduce energy consumption and cost.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gate valve with a protective scraper, comprising a valve body (1), characterized in that: A cylinder fixing seat (15) is fixedly installed in the middle of one side of the valve body (1), a working cylinder (7) is fixedly installed on the side of the cylinder fixing seat (15) facing away from the valve body (1), and a piston rod (5) is fixedly connected to the output end of the working cylinder (7). A storage bin (4) is provided on the side of the valve body (1) facing away from the working cylinder (7), and a working plug-in plate (3) is slidably connected to the middle of the storage bin (4). A plug-in plate valve bin (6) is provided on the side of the valve body (1) close to the working cylinder (7), and the piston rod The end of (5) facing away from the working cylinder (7) passes through the plug valve chamber (6) and is fixedly connected to the working plug plate (3); one side of the top end of the piston rod (5) is rotatably connected to a guide rod (12); the end of the guide rod (12) facing away from the piston rod (5) is fixedly installed with a pressure spring (11); the top end of the valve body (1) is fixedly installed with an action baffle (2) on the side close to the pressure spring (11); the middle part of the action baffle (2) is rotatably connected to an upper protective plate (10), and the pressure spring (11) is fixedly connected to the upper protective plate (10).

2. A gate valve with a protective scraper according to claim 1, characterized in that: A lower protective plate (17) is threadedly connected to one side of the bottom end of the valve body (1) close to the upper protective plate (10), and the lower protective plate (17) is located at the bottom end of the working plug plate (3).

3. The gate valve with a protective scraper according to claim 1, characterized in that: A sealing ring (14) is sleeved on the side of the piston rod (5) close to the working insert plate (3), and a wear-resistant ring (13) is sleeved on the side of the piston rod (5) close to the sealing ring (14).

4. The gate valve with a protective scraper according to claim 1, characterized in that: The two sides of the valve body (1) are threadedly connected with a plurality of evenly distributed mounting screws (9), the side of the working cylinder (7) facing away from the cylinder fixing seat (15) is threadedly connected with a plurality of evenly distributed fixing screws (16), and the middle of the working cylinder (7) is provided with an air inlet pipe (8).

5. The gate valve with a protective scraper according to claim 2, characterized in that: The upper protective plate (10) and the lower protective plate (17) are both made of polytetrafluoroethylene material, and the upper protective plate (10) and the lower protective plate (17) are located on the same vertical line.

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