Novel airtight valve

Abstract

The utility model discloses a novel airtight valve, which particularly relates to the technical field of grain storage and comprises a valve barrel, valve flanges are fixedly arranged at two ends of the valve barrel, a fixing mechanism is arranged in the valve barrel, and the fixing mechanism comprises a sealing plate fixedly arranged in the valve barrel. An anti-deformation plate is fixedly arranged on one side of the sealing plate, a rotating shaft is arranged in the valve barrel, the rotating shaft is sleeved with a rotating plate, threaded holes are formed in the surface of the rotating plate, and bolts are in threaded connection with the interiors of the threaded holes. The valve flanges at the two ends of the valve barrel are conveniently and firmly connected with an external pipeline, stability of a medium circulation channel is guaranteed, the sealing plate and the anti-deformation plate on one side enhance the airtight performance of the valve, leakage caused by deformation of the sealing plate due to pressure is prevented, the bearing is additionally arranged, the opening and closing flexibility of the sealing plate of the valve is improved, and the service life of the valve is prolonged. And the requirements for accurate and efficient control of the valve in different scenes are met.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and more specifically, to a novel airtight valve. Background Technology

[0002] my country is the world's largest grain producer and consumer. Governments at all levels and grain departments attach great importance to grain storage. The application of new grain storage technologies is crucial for improving post-harvest storage management and minimizing grain losses. Mechanical ventilation is the foundation of these new technologies, and its application has played a significant role in grain storage. Air tightness is a critical requirement in ventilation, fumigation, and refrigeration systems, and airtight valves within these systems are essential for ensuring the airtightness of ventilation ducts.

[0003] Poor sealing performance of conventional valves makes it easy for materials to leak from both sides of the valve plate, affecting product transportation. In addition, deformation of the valve body caused by environmental factors will further reduce airtightness, which will have an adverse effect on production over a long period of time.

[0004] A search revealed that Chinese patent CN209743612U discloses a novel airtight valve. This structure, based on the original sealing ring and valve plate, adds an inner sealing ring to the valve plate. Through the cooperation of the inner and outer sealing rings, the airtight valve achieves the best airtight effect. Moreover, no leakage was found when tested with pressurized soapy water, providing the most ideal and high-quality product, suitable for widespread use.

[0005] However, in actual use, this structure only improves the sealing effect by adding an inner sealing ring to the valve plate on the basis of sealing with a fixed sealing ring. Since the valve plate is subjected to pressure, the sealing plate is prone to deformation. Since large-diameter valves usually bear greater internal pressure, the risk of sealing plate deformation is higher, which in turn affects the airtightness. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel airtight valve to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel airtight valve includes a valve body, with valve flanges fixedly installed at both ends of the valve body, and a fixing mechanism installed inside the valve body;

[0009] The fixing mechanism includes a sealing plate fixedly installed inside the valve cylinder, an anti-deformation plate fixedly installed on one side of the sealing plate, a rotating shaft installed inside the valve cylinder, a rotating plate sleeved on the outside of the rotating shaft, and threaded holes opened on the surface of the rotating plate, with bolts threaded inside the threaded holes.

[0010] By adopting the above technical solution: the valve flanges at both ends of the valve body facilitate a firm connection with external pipelines, ensuring a stable medium flow channel; the sealing plate and the anti-deformation plate on one side enhance the valve's airtightness and prevent leakage due to pressure-induced deformation of the sealing plate.

[0011] As a further description of the above technical solution: one end of the rotating shaft passes through the valve body and extends to the outside of the valve body, a bearing is provided on the outside of the rotating shaft, the inner wall of the rotating shaft is connected to the surface of the bearing, the other end of the rotating shaft passes through the valve body and extends to the outside of the valve body, a connecting flange is provided on one end of the rotating shaft, and a manual electric actuator is fixedly provided on one side of the connecting flange.

[0012] By adopting the above technical solution, rotational friction is reduced, making bolt rotation smoother and ensuring the stability of the operation process. By connecting the flange to the manual / electric actuator, it supports both manual direct operation and electric remote control, meeting the valve control needs of different scenarios.

[0013] As a further description of the above technical solution: a door hinge is provided on one side of the valve body, an inspection door is provided on one side of the door hinge, a locking handle is provided on the internal thread of the inspection door, a threaded groove is provided on the surface of the valve body, the locking handle matches the threaded groove, a sealing silicone ring is fixedly provided on one side of the sealing plate, a spring is fixedly provided on one side of the sealing plate, and one end of the spring is connected to the rotating plate.

[0014] By adopting the above technical solution, it is easy to open, facilitates the inspection, maintenance and cleaning of internal components, and the inspection door is locked by matching the locking handle with the threaded groove of the valve cylinder to prevent accidental opening during operation and maintain overall airtightness.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. By setting up a fixing mechanism, compared with the existing technology, the sealing plate, as a key component to ensure airtightness, together with the anti-deformation plate on one side, effectively prevents the sealing plate from deforming due to internal pressure, ensuring good airtightness of the valve and ensuring no leakage during the medium transmission process. By rotating the bolt, the rotating plate is driven to rotate around the axis by its cooperation with the threaded hole of the rotating plate, realizing the adjustment of the angle of the rotating plate and flexibly adjusting the medium flow. The structure is simple and easy to use, and it greatly improves the airtightness of large diameter valves. The sealing silicone ring fixed on one side of the sealing plate, with its good elasticity and sealing performance, effectively fills the potential gaps when the valve is closed, significantly enhancing the airtightness of the valve, preventing medium leakage, and ensuring the sealing performance of the valve under static conditions. Through the self-adjustment of the spring, it is ensured that the sealing silicone ring always maintains a good sealing state.

[0017] 2. By incorporating a rotating shaft and bearings, compared to existing technologies, the combination of the shaft and bearings reduces rotational friction, ensuring smooth and stable rotation. The manual / electric actuator serves as the power source, providing both manual and electric control modes to meet the precise and efficient valve control needs of different scenarios. The inspection door, equipped with a hinged door, facilitates internal valve maintenance. When maintenance is required, the inspection door can be easily opened, allowing personnel to enter and work. When closed, the rotating locking handle engages tightly with the valve body's threaded groove, securely locking the inspection door. This prevents accidental opening of the inspection door during operation, avoiding safety hazards, and maintains the overall airtightness of the valve, ensuring stable and reliable operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model.

[0020] Figure 3 This is a frontal cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0022] Figure 5 This is a top view schematic diagram of the overall structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Valve body; 2. Valve flange; 3. Sealing plate; 4. Anti-deformation plate; 5. Shaft; 6. Rotating plate; 7. Bolt; 8. Bearing; 9. Connecting flange; 10. Manual / electric actuator; 11. Door hinge; 12. Inspection door; 13. Locking handle; 14. Sealing silicone ring; 15. Spring. Detailed Implementation

[0024] 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.

[0025] The embodiments disclosed in this application are as follows: Figure 1-5 The novel airtight valve shown includes a valve body 1, with valve flanges 2 fixedly installed at both ends of the valve body 1, and a fixing mechanism installed inside the valve body 1.

[0026] The fixing mechanism includes a sealing plate 3 fixedly installed inside the valve body 1. An anti-deformation plate 4 is fixedly installed on one side of the sealing plate 3. A rotating shaft 5 is installed inside the valve body 1. A rotating plate 6 is sleeved on the outside of the rotating shaft 5. Threaded holes are opened on the surface of the rotating plate 6, and bolts 7 are threaded into the internal threads of the threaded holes. The valve flanges 2 at both ends of the valve body 1 are used to connect with external pipelines to realize the communication between pipelines and provide a channel for the flow of media. The sealing plate 3 is fixed inside the valve body 1 and is one of the key components to ensure the airtight performance of the valve. The anti-deformation plate 4 fixed on one side of the sealing plate 3 plays a role in enhancing the strength of the sealing plate and preventing deformation of the sealing plate due to internal pressure factors during valve operation, thereby affecting the airtight effect. Rotating the bolts 7 will cause the rotating plate 6 to rotate around the rotating shaft 5 because the bolts 7 are engaged with the threaded holes on the rotating plate 6. The angle of the rotating plate 6 can be adjusted by operating the bolts 7, thereby realizing the control of the internal channel of the valve.

[0027] Reference Figure 2-3 As shown, one end of the rotating shaft 5 passes through the valve body 1 and extends outward from the valve body 1. A bearing 8 is installed on the outside of the rotating shaft 5, and the inner wall of the rotating shaft 5 is connected to the surface of the bearing 8. The other end of the rotating shaft 5 passes through the valve body 1 and extends outward from the valve body 1. A connecting flange 9 is installed at one end of the rotating shaft 5, and a hand-operated electric actuator 10 is fixedly installed on one side of the connecting flange 9. One end of the bearing 8 passes through the valve body 1 and extends outward, and a bearing 8 is installed on its outside. The inner wall of the bearing 8 is connected to the surface of the bearing 8. The bearing 8 reduces the friction between the rotating shaft 5 and the valve body 1 when the rotating shaft 5 rotates, making the rotating shaft 5 rotate more smoothly and ensuring the stability of the rotating shaft 5 during rotation. The hand-operated electric actuator 10 is the power source for controlling the rotation of the rotating shaft 5. In manual mode, the operator can directly operate the hand-operated electric actuator 10 to drive the bolt 7 to rotate. In electric mode, the hand-operated electric actuator 10 can be remotely controlled through the electrical control system, thereby realizing the automated control of the valve and meeting the needs of valve operation in different working scenarios.

[0028] Reference Figure 4-5 As shown, a door hinge 11 is provided on one side of the valve body 1, and an inspection door 12 is provided on one side of the door hinge 11. A locking handle 13 is provided on the internal thread of the inspection door 12. A threaded groove is opened on the surface of the valve body 1, and the locking handle 13 matches the threaded groove. A sealing silicone ring 14 is fixedly provided on one side of the sealing plate 3, and a spring 15 is fixedly provided on one side of the sealing plate 3. One end of the spring 15 is connected to the rotating plate 6. The sealing silicone ring 14 has good elasticity and sealing performance. When the valve is closed, the sealing silicone ring 14 can fit tightly against the rotating plate 6 or other internal components of the valve, filling any gaps and further enhancing the valve's airtightness. During valve operation, the pressure inside the pipeline changes, and the spring 15 can adjust the pressure between the sealing plate 3 and the rotating plate 6 through its own extension and contraction. When the pressure increases, the spring 15 is compressed, making the sealing plate 3 and the rotating plate 6 fit more tightly; when the pressure decreases, the spring 15 extends, maintaining a certain fitting pressure to ensure that the sealing silicone ring 14 always maintains a good sealing state and improves the stability of the valve's airtightness performance.

[0029] Working principle of this utility model:

[0030] This utility model is a novel airtight valve. When in use, the valve flanges 2 at both ends of the valve body 1 are used to connect with external pipelines to achieve communication between pipelines and provide a channel for the flow of media. The sealing plate 3 is fixed inside the valve body 1 and is one of the key components to ensure the airtight performance of the valve. The anti-deformation plate 4 fixed on one side of the sealing plate 3 plays a role in enhancing the strength of the sealing plate and preventing deformation of the sealing plate due to internal pressure factors during valve operation, thereby affecting the airtight effect. Rotating the bolt 7 will cause the rotating plate 6 to rotate around the rotating shaft 5 because the bolt 7 is engaged with the threaded hole on the rotating plate 6. The angle of the rotating plate 6 can be adjusted by operating the bolt 7, thereby realizing the control of the internal channel of the valve.

[0031] One end of the rotating shaft 5 passes through the valve body 1 and extends outward. A bearing 8 is installed on its exterior. The inner wall of the bearing 8 is connected to the surface of the rotating shaft 5. The bearing 8 reduces the friction between the rotating shaft 5 and the valve body 1 when the rotating shaft 5 rotates, making the rotation of the rotating shaft 5 smoother and ensuring the stability of the rotating shaft 5 during rotation. The manual electric actuator 10 is the power source for controlling the rotation of the rotating shaft 5. In manual mode, the operator can directly operate the manual electric actuator 10 to drive the rotating shaft 5 to rotate. In electric mode, the manual electric actuator 10 can be remotely controlled through the electrical control system, thereby realizing the automated control of the valve and meeting the needs of valve operation in different working scenarios.

[0032] Inspection door 12 facilitates the inspection, maintenance, and cleaning of internal valve components. When maintenance is required inside the valve, inspection door 12 can be opened via door hinge 11, allowing personnel to enter the valve for related operations. After closing inspection door 12, rotating locking handle 13 ensures a tight fit with the threaded groove on the surface of valve body 1, thus securely locking inspection door 12 onto valve body 1. This not only prevents inspection door 12 from opening accidentally during valve operation but also helps maintain the overall airtightness of the valve.

[0033] A sealing silicone ring 14 is fixedly installed on one side of the sealing plate 3. The sealing silicone ring 14 has good elasticity and sealing performance. When the valve is in the closed state, the sealing silicone ring 14 can fit tightly with the rotating plate 6 or other internal parts of the valve, filling any gaps and further enhancing the airtightness of the valve. During valve operation, the pressure inside the pipeline will change. The spring 15 can adjust the pressure between the sealing plate 3 and the rotating plate 6 by its own extension and contraction. When the pressure increases, the spring 15 is compressed, making the sealing plate 3 fit more tightly with the rotating plate 6; when the pressure decreases, the spring 15 extends to maintain a certain fitting pressure, ensuring that the sealing silicone ring 14 always maintains a good sealing state and improving the stability of the valve's airtightness performance.

[0034] 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 novel airtight valve, comprising a valve body (1), characterized in that: Both ends of the valve cylinder (1) are fixedly provided with valve flanges (2), and a fixing mechanism is provided inside the valve cylinder (1); The fixing mechanism includes a sealing plate (3) fixedly installed inside the valve cylinder (1), an anti-deformation plate (4) fixedly installed on one side of the sealing plate (3), a rotating shaft (5) installed inside the valve cylinder (1), a rotating plate (6) sleeved on the outside of the rotating shaft (5), threaded holes are opened on the surface of the rotating plate (6), and bolts (7) are threaded inside the threaded holes.

2. The novel airtight valve according to claim 1, characterized in that: One end of the rotating shaft (5) passes through the valve cylinder (1) and extends to the outside of the valve cylinder (1). A bearing (8) is provided on the outside of the rotating shaft (5), and the inner wall of the rotating shaft (5) is connected to the surface of the bearing (8).

3. The novel airtight valve according to claim 1, characterized in that: The other end of the rotating shaft (5) passes through the valve body (1) and extends to the outside of the valve body (1). A connecting flange (9) is provided at one end of the rotating shaft (5), and a manual electric actuator (10) is fixedly provided on one side of the connecting flange (9).

4. The novel airtight valve according to claim 1, characterized in that: A door hinge (11) is provided on one side of the valve cylinder (1), and an inspection door (12) is provided on one side of the door hinge (11).

5. The novel airtight valve according to claim 4, characterized in that: The inspection door (12) has a locking handle (13) on its internal thread, and the valve cylinder (1) has a threaded groove on its surface. The locking handle (13) matches the threaded groove.

6. The novel airtight valve according to claim 1, characterized in that: A sealing silicone ring (14) is fixedly provided on one side of the sealing plate (3), and a spring (15) is fixedly provided on one side of the sealing plate (3). One end of the spring (15) is connected to the rotating plate (6).

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