Anti-deflection concentricity-adjustable self-cooling double-sealing lift valve

Abstract

The utility model relates to the technical field of fluid control, and discloses an anti-deflection concentricity-adjustable self-cooling double-sealing lift valve which comprises an outer main body assembly, a driving assembly is arranged at the bottom of the outer main body assembly, a guide assembly is arranged at the top of the driving assembly, a limiting assembly is arranged on one side of the guide assembly, and the limiting assembly is arranged on the other side of the guide assembly. The guide assembly comprises a guide seat, a compressed air nozzle is fixedly connected to the bottom of the guide seat, three aligning positioning plates are fixedly connected to the outer wall of the guide seat, a shaft seal gland is slidably connected to the outer wall of the guide seat, and a connecting shaft is slidably connected to the inner wall of the guide seat. According to the utility model, by starting the air cylinder, the air cylinder can drive the connecting shaft to move in the guide seat, so that the blade can be telescopically adjusted up and down, and meanwhile, the connecting rod connected to the bottom of the blade is connected with the aligning positioning plate through the connecting block, so that the valve can be prevented from deflecting.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, and in particular to a lift valve with adjustable anti-deflection concentricity, self-cooling, and double seal. Background Technology

[0002] In the VOCs treatment industry, valves, as components of fluid transportation, have functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or pressure relief. They play an irreplaceable role in the VOCs treatment industry. Valves used in fluid control devices range from the simplest manual switching valves to various valves in extremely complex automatic control devices, with a wide variety of types and specifications. With the growth of the national economy, the valve industry has developed very rapidly. The current state of valves in the market is characterized by high-temperature jamming, misalignment jamming, wear of sealing packing, high leakage rate, and relatively high failure rate.

[0003] Traditional sealing lift valves consist of a valve body, valve seat, valve core, sealing element, and operating mechanism. Their working principle is that the operating mechanism drives the valve core to rise and fall, contacting or separating from the valve seat, thereby controlling the flow of fluid. The sealing element between the valve core and the valve seat ensures that fluid leakage is prevented when closed, achieving a sealing effect.

[0004] Traditional valves often suffer from problems such as unstable sealing performance, wear of sealing materials, and seal failure due to temperature and pressure changes during use, leading to leakage and unstable operation of the device. To address these issues, a self-cooling double-seal lift valve with adjustable anti-deflection concentricity is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a lift valve with adjustable anti-deflection concentricity and self-cooling double seal, which aims to improve the problem of unstable sealing performance of existing lift valves.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cooling double-seal lifting valve with adjustable concentricity and anti-deflection capability includes an outer body assembly, a drive assembly at the bottom of the outer body assembly, a guide assembly at the top of the drive assembly, and a limit assembly on one side of the guide assembly.

[0008] The guide assembly includes a guide seat, a compressed air nozzle is fixedly connected to the bottom of the guide seat, three self-aligning positioning plates are fixedly connected to the outer wall of the guide seat, a shaft seal cover is slidably connected to the outer wall of the guide seat, a connecting shaft is slidably connected to the inner wall of the guide seat, and a blade is threaded to the top of the connecting shaft.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a cylinder, and a U-shaped groove is fixedly connected to the top of the cylinder;

[0011] As a further description of the above technical solution:

[0012] The limiting component includes a connecting rod, and a connecting block is slidably connected to the outer wall of the connecting rod;

[0013] As a further description of the above technical solution:

[0014] The bottom of the shaft seal cover is fixedly connected to the top of the self-aligning positioning plate, and the outer wall of the guide seat is fixedly connected to the inner wall of the outer main body assembly.

[0015] As a further description of the above technical solution:

[0016] The bottom of the guide seat is threadedly connected to the drive end of the cylinder, and the top of the U-shaped groove is fixedly connected to the bottom of the outer body assembly.

[0017] As a further description of the above technical solution:

[0018] The top end of the connecting rod is threaded to the inner wall of the blade, and the outer wall of the connecting block is fixedly connected to the outer wall of the self-aligning positioning plate.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, by starting the cylinder, the cylinder can drive the connecting shaft to move inside the guide seat, thereby adjusting the blade up and down. At the same time, the connecting rod connected to the bottom of the blade can prevent the valve from deflecting through the connection of the connecting block and the self-aligning positioning plate. The high-precision adjustable connecting block ensures concentricity, prevents the blade from shaking during operation, reduces the wear of the connecting shaft and the shaft seal cover, and improves the service life of the lifting valve.

[0021] 2. In this utility model, by introducing compressed air, the guide seat can be cooled down, the cylinder can be protected, and the high temperature can be prevented from jamming the shaft. The drive component is fixed to the connecting shaft with set screws. The mounting seat on the outer main body component adopts a U-shaped groove, which facilitates the installation and maintenance of the drive component. The installation is flexible and convenient, the internal structure is simplified, the weight is reduced, and the equipment manufacturing cost is saved. Attached Figure Description

[0022] Figure 1 A three-dimensional schematic diagram of a self-cooling double-seal lifting valve with adjustable concentricity to prevent deflection, as proposed in this utility model.

[0023] Figure 2This is a schematic diagram of the connecting block of a self-cooling double-seal lifting valve with adjustable concentricity and anti-deflection, as proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the connecting rod of a self-cooling double-seal lifting valve with adjustable concentricity and anti-deflection properties proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the blade structure of a self-cooling double-seal lifting valve with adjustable concentricity and anti-deflection, as proposed in this utility model.

[0026] Legend:

[0027] 1. Outer body assembly; 2. Drive assembly; 21. Cylinder; 22. U-shaped groove; 3. Guide assembly; 31. Guide seat; 32. Compressed air nozzle; 33. Self-aligning positioning plate; 34. Shaft seal cover; 35. Connecting shaft; 4. Blade; 5. Limiting assembly; 51. Connecting rod; 52. Connecting block. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1 to 3 The present invention provides an embodiment of a self-cooling double-seal lifting valve with adjustable concentricity to prevent deflection, comprising an outer body assembly 1, a driving assembly 2 at the bottom of the outer body assembly 1, a guide assembly 3 at the top of the driving assembly 2, and a limit assembly 5 on one side of the guide assembly 3.

[0030] The guide assembly 3 includes a guide seat 31, which is the core component of the guide assembly 3 and is responsible for supporting and guiding the movement of subsequent components. A compressed air nozzle 32 is fixedly connected to the bottom of the guide seat 31 to provide compressed air to the device and maintain the required pneumatic pressure for cooling. Three self-aligning positioning plates 33 are fixedly connected to the outer wall of the guide seat 31. The three self-aligning positioning plates 33 can ensure that the subsequent components remain stable during operation and adjust their positions to adapt to different working requirements. A shaft seal cover 34 is slidably connected to the outer wall of the guide seat 31. The shaft seal cover 34 plays a sealing role to prevent gas leakage and maintain the airtightness of the device. A connecting shaft 35 is slidably connected to the inner wall of the guide seat 31. The connecting shaft 35 plays a role in transmitting power. A blade 4 is threadedly connected to the top of the connecting shaft 35. The blade 4 is further moved or adjusted through the connecting shaft 35 to complete the working task of the entire guide assembly 3.

[0031] Reference Figure 1 , Figure 2 and Figure 4 The drive assembly 2 includes a cylinder 21, which provides power through pneumatic principles to drive the connected mechanical components to perform the required linear motion. The bottom of the guide seat 31 is threadedly connected to the drive end of the cylinder 21. A U-shaped groove 22 is fixedly connected to the top of the cylinder 21 to fix the cylinder 21 and ensure its stability and reliability. The top of the U-shaped groove 22 is fixedly connected to the bottom of the outer main body assembly 1. The limiting assembly 5 includes a connecting rod 51, which serves as a connection and guide. The top of the connecting rod 51 is threadedly connected to the inner wall of the blade 4. The wall sliding connection has a connecting block 52, which restricts the movement range of the connecting rod 51, ensuring the precise positioning of the mechanical parts and limiting the movement range. The outer wall of the connecting block 52 is fixedly connected to the outer wall of the self-aligning positioning plate 33. The bottom of the shaft seal cover 34 is fixedly connected to the top of the self-aligning positioning plate 33, which plays a sealing role, preventing gas leakage and maintaining the pressure stability of the pneumatic device. The outer wall of the guide seat 31 is fixedly connected to the inner wall of the outer main body component 1, ensuring a stable connection between the guide seat 31 and the outer main body component 1, avoiding any displacement or loosening, and ensuring the smooth operation and precise operation of the entire device.

[0032] Working principle: By starting the cylinder 21, the cylinder 21 can drive the connecting shaft 35 to move inside the guide seat 31, thereby adjusting the blade 4 up and down. At the same time, the connecting rod 51 connected to the bottom of the blade 4, through the connection block 52 and the self-aligning positioning plate 33, can prevent the valve from deflecting. The high-precision adjustable connecting block 52 ensures concentricity, prevents the blade 4 from shaking during operation, reduces the wear of the connecting shaft 35 and the shaft seal cover 34, and improves the service life of the lifting valve. The shaft seal cover 34 and the compressed air nozzle 32 are used together to achieve a double-stage sealing effect, reducing the risk of gas leakage and improving the safety performance of the equipment.

[0033] By introducing compressed air, the guide seat 31 can be cooled, protecting the cylinder 21 and preventing high-temperature shaft jamming. The drive assembly 2 is fixed to the connecting shaft 35 using set screws. The mounting seat on the outer body assembly 1 adopts a U-shaped groove 22, which facilitates the installation and maintenance of the drive assembly 2. The combined use of the outer body assembly 1, blade 4, connecting shaft 35, limit assembly 5, guide assembly 3, and sealing assembly can adapt to high-temperature working conditions. It is reliable, stable, has a low failure rate, ultra-low leakage, and is convenient and quick to use. It can be modularly assembled according to actual needs, and the installation is flexible and convenient. It simplifies the internal structure, reduces weight, saves equipment manufacturing costs, and improves the energy efficiency of the equipment.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cooling, double-seal lifting valve with adjustable concentricity to prevent deflection, comprising an outer body assembly (1), characterized in that: The bottom of the outer main body component (1) is provided with a driving component (2), the top of the driving component (2) is provided with a guide component (3), and a limit component (5) is provided on one side of the guide component (3). The guide assembly (3) includes a guide seat (31), a compressed air nozzle (32) is fixedly connected to the bottom of the guide seat (31), three self-aligning positioning plates (33) are fixedly connected to the outer wall of the guide seat (31), a shaft seal cover (34) is slidably connected to the outer wall of the guide seat (31), a connecting shaft (35) is slidably connected to the inner wall of the guide seat (31), and a blade (4) is threadedly connected to the top end of the connecting shaft (35).

2. The anti-deflection concentricity adjustable self-cooling double-seal lifting valve according to claim 1, characterized in that: The drive assembly (2) includes a cylinder (21), and a U-shaped groove (22) is fixedly connected to the top of the cylinder (21).

3. The anti-deflection concentricity adjustable self-cooling double-seal lifting valve according to claim 2, characterized in that: The limiting component (5) includes a connecting rod (51), and a connecting block (52) is slidably connected to the outer wall of the connecting rod (51).

4. The anti-deflection concentricity adjustable self-cooling double-seal lifting valve according to claim 3, characterized in that: The bottom of the shaft seal cover (34) is fixedly connected to the top of the self-aligning positioning plate (33), and the outer wall of the guide seat (31) is fixedly connected to the inner wall of the outer main body assembly (1).

5. The anti-deflection concentricity adjustable self-cooling double-seal lifting valve according to claim 4, characterized in that: The bottom of the guide seat (31) is threaded to the drive end of the cylinder (21), and the top of the U-shaped groove (22) is fixedly connected to the bottom of the outer body assembly (1).

6. The anti-deflection concentricity adjustable self-cooling double-seal lifting valve according to claim 3, characterized in that: The top end of the connecting rod (51) is threaded to the inner wall of the blade (4), and the outer wall of the connecting block (52) is fixedly connected to the outer wall of the self-aligning positioning plate (33).

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