A zero-leak quick close valve device

Abstract

The utility model discloses a kind of zero leakage quick closing valve devices, including valve body, the one end of valve body is equipped with lower fluid passage, the other end of valve body is equipped with upper fluid passage, sealing seat is installed between lower fluid passage and upper flow passage, the inside of sealing seat is equipped with conical valve core in cooperation, double sealing mechanism is equipped between valve core and sealing seat, the top of valve core is connected with valve rod, one end of valve rod extends to the outside of valve cover and is connected with driving mechanism, the utility model is equipped with driving mechanism, can control the lifting of valve rod and valve core, to realize the opening and closing of valve, double sealing mechanism is equipped, can ensure that valve realizes zero leakage under closed state, driving mechanism adopts quick response design, can ensure that valve can be closed quickly under emergency, and then through the above structure, the quick closing and zero leakage sealing of valve are realized, applicable to a variety of fluid control scene, improve safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a zero-leakage, fast-closing valve device. Background Technology

[0002] Valves are control components in fluid transport systems, with functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. Valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. Valves are also classified according to their materials, such as cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, and non-standard customized valves.

[0003] However, traditional valves have revealed many drawbacks in practical applications: First, leakage is a common problem. The sealing structure of traditional valves mostly uses simple rubber sealing rings or metal gaskets. During long-term use, the seals are easily worn and aged due to fluid scouring, corrosion, and frequent changes in temperature and pressure, leading to valve leakage. Second, the closing speed is slow. Many traditional valves rely on manual or simple mechanical transmission to achieve the closing action. When an emergency requires rapid fluid shut-off, they cannot respond in time. Therefore, it is necessary to design a zero-leakage, fast-closing valve device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a zero-leakage, fast-closing valve device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a zero-leakage, fast-closing valve device, comprising a valve body, a valve cover mounted on the top of the valve body, a lower fluid channel at one end of the valve body, an upper fluid channel at the other end of the valve body, a sealing seat installed between the lower fluid channel and the upper fluid channel, the surface of the sealing seat being coated with an elastic sealing material, a conical valve core fitted inside the sealing seat, a double sealing mechanism between the valve core and the sealing seat, a valve stem connected to the top of the valve core, one end of the valve stem extending to the outside of the valve cover and connected to a drive mechanism for easy lifting and lowering.

[0006] Preferably, the driving mechanism includes an electromagnet, the top of the valve cover is provided with two sets of support rods, the top of the two sets of support rods is connected to a top plate, the top of the top plate is equipped with the electromagnet, one end of the valve stem passes through the interior of the top plate and extends to the inner side of the electromagnet, the outer ring of the valve stem is fitted with a limiting plate, the two ends of the limiting plate are slidably connected to the two sets of support rods respectively, and the top of the limiting plate and the bottom of the top plate are connected by a spring fitted on the outer ring of the valve stem.

[0007] Preferably, the spring is a high-strength compression spring.

[0008] Preferably, the dual sealing mechanism includes a main seal and an auxiliary seal. The main seal is disposed on the conical surface of the valve core, and the conical angle of the main seal matches the conical angle of the sealing seat. The auxiliary seal adopts a ring structure and is installed in the bottom groove of the sealing seat. The size and shape of the auxiliary seal are precisely matched with the contact surface of the valve core.

[0009] Preferably, both the main seal and the auxiliary seal are made of highly elastic and corrosion-resistant materials.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model utilizes an electromagnet that generates magnetic force when energized. The electromagnet attracts the valve stem, overcoming the spring force and causing the valve stem to move upward. Simultaneously, the valve stem drives the conical valve core upward and disengages from the sealing seat. At this time, the lower fluid channel is connected to the upper fluid channel, allowing fluid to pass through the valve. When the electromagnet is de-energized, it loses its magnetic force, and the spring quickly releases its force, pushing the limit plate and valve stem downward. The valve stem then drives the conical valve core downward and tightly seals it against the sealing seat. Under the action of the double sealing mechanism, zero leakage is ensured when the valve is closed. At this time, the lower fluid channel is disconnected from the upper fluid channel, and fluid stops passing through the valve. Furthermore, by setting this mechanism, rapid valve closure can be achieved for timely response in emergency situations.

[0012] 2. In this invention, when the drive mechanism controls the valve stem to move downward and drives the conical valve core to move downward, the conical surface of the main seal can tightly fit with the conical inner wall of the sealing seat to form the first seal. The bottom of the valve core can be squeezed with the auxiliary seal in the bottom groove of the sealing seat to form the second seal. Both the main seal and the auxiliary seal are made of highly elastic and corrosion-resistant materials to ensure good sealing performance under high pressure, high temperature and corrosive media environments. Thus, under the combined action of the double seals, the valve can achieve zero leakage in the closed state. Furthermore, by setting it up, zero leakage sealing of the valve in the closed state can be achieved, which significantly improves the safety and reliability of the valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a bottom view of the present invention;

[0015] Figure 3 This is a side sectional view of the present invention;

[0016] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0017] Figure 5 for Figure 3 Enlarged view of part B in the image.

[0018] In the diagram: 1. Valve body, 2. Lower fluid passage, 3. Upper fluid passage, 4. Valve cover, 5. Sealing seat, 6. Auxiliary seal, 7. Valve core, 8. Main seal, 9. Valve stem, 10. Support rod, 11. Top plate, 12. Electromagnet, 13. Limiting plate, 14. Spring. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please refer to Figure 1-5 As shown, this utility model provides a zero-leakage quick-closing valve device, including a valve body 1, a valve cover 4 installed on the top of the valve body 1, a lower fluid channel 2 provided at one end of the valve body 1, an upper fluid channel 3 provided at the other end of the valve body 1, a sealing seat 5 installed between the lower fluid channel 2 and the upper fluid channel 3, the surface of the sealing seat 5 being coated with an elastic sealing material, a conical valve core 7 fitted inside the sealing seat 5, a double sealing mechanism provided between the valve core 7 and the sealing seat 5, a valve stem 9 connected to the top of the valve core 7, one end of the valve stem 9 extending to the outside of the valve cover 4 and connected to a drive mechanism for easy lifting and lowering.

[0022] Specifically, the valve stem 9 can be raised and lowered by the drive mechanism, which in turn drives the conical valve core 7 to cooperate with the sealing seat 5, realizing the opening and closing of the valve. The double sealing mechanism ensures zero leakage when the valve is closed. The elastic sealing material enhances the sealing effect. The drive mechanism adopts a fast response design, which ensures that the valve can be quickly closed in an emergency. Thus, through the above structure, the valve can be quickly closed and sealed with zero leakage, which is suitable for various fluid control scenarios and improves safety and reliability.

[0023] The driving mechanism includes an electromagnet 12. Two sets of support rods 10 are located on the top of the valve cover 4. A top plate 11 is connected to the top of the two sets of support rods 10. An electromagnet 12 is mounted on the top of the top plate 11. One end of the valve stem 9 passes through the interior of the top plate 11 and extends to the inner side of the electromagnet 12. A limiting plate 13 is fitted around the outer ring of the valve stem 9. Both ends of the limiting plate 13 are slidably connected to the two sets of support rods 10. The top of the limiting plate 13 is connected to the bottom of the top plate 11 by a spring 14 fitted around the outer ring of the valve stem 9. The spring 14 is a high-strength compression spring, which generates magnetic force when the electromagnet 12 is energized. The electromagnet 12 attracts the valve stem 9 and overcomes the elastic force of the spring 14, causing the valve stem 9 to move upwards. When the valve stem 9 moves, it can simultaneously drive the conical valve core 7 to move upward and disengage from the sealing seat 5. At this time, the lower fluid channel 2 is connected to the upper fluid channel 3, and fluid can pass through the valve. After the electromagnet 12 is de-energized, the electromagnet 12 loses its magnetic force, and the spring 14 quickly releases its elastic force, pushing the limit plate 13 and the valve stem 9 downward. The valve stem 9 can drive the conical valve core 7 downward and fit tightly against the sealing seat 5. Under the action of the double sealing mechanism, it can ensure that the valve achieves zero leakage in the closed state. At this time, the lower fluid channel 2 is disconnected from the upper fluid channel 3, and the fluid stops passing through the valve. Furthermore, by setting it, the valve can be quickly closed to facilitate timely response in emergency situations.

[0024] The dual sealing mechanism includes a main seal 8 and an auxiliary seal 6. The main seal 8 is located on the conical surface of the valve core 7, and the conical angle of the main seal 8 matches the conical angle of the sealing seat 5. The auxiliary seal 6 adopts a ring structure and is installed in the bottom groove of the sealing seat 5. The size and shape of the auxiliary seal 6 are precisely matched with the contact surface of the valve core 7. Both the main seal 8 and the auxiliary seal 6 are made of highly elastic and corrosion-resistant materials. When the drive mechanism controls the valve stem 9 to move downward and drives the conical valve core 7 to move downward, the conical surface of the main seal 8 can fit tightly with the conical inner wall of the sealing seat 5 to form the first seal. The bottom of the valve core 7 can be squeezed with the auxiliary seal 6 in the bottom groove of the sealing seat 5 to form the second seal. Both the main seal 8 and the auxiliary seal 6 are made of highly elastic and corrosion-resistant materials to ensure good sealing performance under high pressure, high temperature and corrosive media environments. Thus, under the combined action of the dual seals, the valve can achieve zero leakage in the closed state. Therefore, by setting it up, the valve can achieve zero leakage sealing in the closed state, which significantly improves the safety and reliability of the valve.

[0025] Working principle: First, when the electromagnet 12 is energized, it generates magnetic force, attracting the valve stem 9 and overcoming the elastic force of the spring 14, causing the valve stem 9 to move upward. At the same time, the valve stem 9 can drive the conical valve core 7 to move upward and separate from the sealing seat 5. At this time, the lower fluid channel 2 is connected to the upper fluid channel 3, and fluid can pass through the valve. After the electromagnet 12 is de-energized, the electromagnet 12 loses its magnetic force, and the spring 14 quickly releases its elastic force, pushing the limit plate 13 and the valve stem 9 downward. The valve stem 9 can drive the conical valve core 7 downward and fit tightly against the sealing seat 5. At this time, the conical surface of the main seal 8 can fit tightly against the conical inner wall of the sealing seat 5, forming the first seal. The bottom of the valve core 7 can be squeezed against the auxiliary seal 6 in the bottom groove of the sealing seat 5, forming the second seal. Under the combined action of the double seals, the valve can achieve zero leakage when closed. At this time, the lower fluid channel 2 is disconnected from the upper fluid channel 3, and the fluid stops passing through the valve, thus completing the entire operation process.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A zero-leakage, quick-closing valve device, comprising a valve body (1), wherein a valve cover (4) is mounted on the top of the valve body (1), characterized in that: One end of the valve body (1) is provided with a lower fluid channel (2), and the other end of the valve body (1) is provided with an upper fluid channel (3). A sealing seat (5) is installed between the lower fluid channel (2) and the upper fluid channel (3). The surface of the sealing seat (5) is coated with an elastic sealing material. A conical valve core (7) is provided on the inner side of the sealing seat (5). A double sealing mechanism is provided between the valve core (7) and the sealing seat (5). A valve stem (9) is connected to the top of the valve core (7). One end of the valve stem (9) extends to the outside of the valve cover (4) and is connected to a drive mechanism that facilitates its lifting and lowering. The dual sealing mechanism includes a main seal (8) and an auxiliary seal (6). The main seal (8) is disposed on the conical surface of the valve core (7). The conical angle of the main seal (8) matches the conical angle of the sealing seat (5). The auxiliary seal (6) adopts a ring structure and is installed in the bottom groove of the sealing seat (5). The size and shape of the auxiliary seal (6) are precisely matched with the contact surface of the valve core (7).

2. The zero-leakage quick-closing valve device according to claim 1, characterized in that: The driving mechanism includes an electromagnet (12). The top of the valve cover (4) is provided with two sets of support rods (10). The top of the two sets of support rods (10) is connected to a top plate (11). The top of the top plate (11) is equipped with the electromagnet (12). One end of the valve stem (9) passes through the interior of the top plate (11) and extends to the inside of the electromagnet (12). The outer ring of the valve stem (9) is fitted with a limiting plate (13). The two ends of the limiting plate (13) are slidably connected to the two sets of support rods (10) respectively. The top of the limiting plate (13) and the bottom of the top plate (11) are connected by a spring (14) fitted on the outer ring of the valve stem (9).

3. The zero-leakage quick-closing valve device according to claim 2, characterized in that: The spring (14) is a high-strength compression spring.

4. The zero-leakage quick-closing valve device according to claim 1, characterized in that: Both the main seal (8) and the auxiliary seal (6) are made of highly elastic and corrosion-resistant materials.

Images