High-pressure oil tank isolating valve capable of flexibly switching directions

Abstract

The invention relates to the technical field of isolating valves, and discloses a high-pressure oil tank isolating valve capable of flexibly switching directions, which comprises a valve body and a valve cover, an electromagnet body is mounted on the valve cover, and a valve seat for dividing a cavity is mounted in the valve body. The adjusting rod capable of flexibly rotating is arranged and is ingeniously matched with the notches with different heights in the sealing sleeve, the flowing sectional area of oil liquid is accurately adjusted by changing the corresponding positions of the adjusting rod and the sealing sleeve, both fine adjustment of micro flow and rapid switching of large flow can be easily achieved, and the requirements of diversified working conditions are met; and when the reverse pressure is too large, the rubber film rapidly deforms, drives the sealing plate to move upwards and is tightly attached to the valve seat, and the rubber film is tightly attached to the surface of the valve seat, so that the sealing area is increased, the sealing effect is finally enhanced instantly, oil liquid is efficiently prevented from flowing reversely, the system is prevented from being damaged due to abnormal pressure, and the safety and stability of the system are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of isolation valves, in particular, to a high-pressure oil tank isolation valve capable of flexibly switching directions. BACKGROUND

[0002] In the field of modern industry, especially in the fuel system and hydraulic system involving high-pressure oil tanks, isolation valves, as key components, play a crucial role in the stable operation of the system. They not only need to achieve on-off control of oil, but also need to meet the demand for flow regulation and pressure protection under different working conditions.

[0003] However, the existing high-pressure oil tank isolation valve has defects in flow regulation. Traditional isolation valves usually adopt the structure of an electromagnetic valve driving a valve core. Since the distance between the electromagnetic valve and the valve core is fixed and cannot be changed, the valve opening cannot be flexibly adjusted. When the system needs to change the flow of oil, an additional flow regulating valve often needs to be installed separately, increasing the cost of equipment and installation space. In terms of sealing performance, when the system has excessive reverse pressure, the existing technology mostly relies on spring extrusion of the sealing plate to achieve sealing. However, this sealing method has obvious defects. The sealing strip area is usually similar to the size of the sealing plate, and the sealing range is limited. Under high pressure impact, the sealing is not tight, which may lead to oil leakage.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] To solve the above technical problems, the basic idea of the technical solution of the present application is as follows:

[0006] A high-pressure oil tank isolation valve capable of flexibly switching directions, comprising a valve body and a valve cover.

[0007] The valve cover is installed on the valve body, and an electromagnet body is installed on the valve cover;

[0008] A valve seat for dividing the chamber is installed inside the valve body. A sleeve is installed on the valve seat. A through hole is formed in the sleeve. A sealing sleeve is slidingly installed on the valve seat. A plurality of pairs of notches that are not communicated with the sealing sleeve are formed in the sealing sleeve. A cover plate is installed on the sealing sleeve. A pressing plate is installed at the bottom of the cover plate and extrudes on the valve seat to seal the valve. An electromagnet body for driving the cover plate to slide is installed on the valve seat.

[0009] The heights of the plurality of pairs of notches are different. An adjusting rod is rotatably installed inside the sealing sleeve. The adjusting rod is used to switch the through hole and change the flow corresponding to different pairs of notches.

[0010] A sealing plate is attached to the bottom of the valve seat. A rubber membrane is installed on the side wall of the sealing plate. The rubber membrane is used to tightly attach to the valve seat when the reverse pressure is too large to improve the sealing performance.

[0011] As a preferred embodiment of the present application, one end of the valve body is provided with an input pipe, which is in communication with one of the chambers in the valve body, and the other end of the valve body is provided with an output pipe, which is in communication with the other chamber in the valve body, and the two chambers are separated by a valve seat, which is internally provided with a sliding cavity, and the sealing sleeve is slidingly arranged in the sliding cavity.

[0012] As a preferred embodiment of the present application, the side wall of the valve body is provided with two connecting frames, which are L-shaped and centrally symmetrically arranged, and the connecting frames are provided with reinforcing plates arranged at the corners, and the reinforcing plates are triangular, and the surfaces of the connecting frames are provided with mounting holes for convenient mounting.

[0013] As a preferred embodiment of the present application, the valve cover is provided with a top cover, the top cover is provided with guide plates around the periphery, the guide plates are inserted into the periphery of the valve cover, the electromagnet body is provided with wires, the wires penetrate the valve cover, the electromagnet body is provided with a positioning cover on the outer side wall, the positioning cover is arranged in the stepped groove of the valve cover by bolts, the top cover is provided with a top rod at the bottom, and the bottom of the top rod is pressed on the positioning cover.

[0014] As a preferred embodiment of the present application, the bottom of the pressing plate is provided with a sealing gasket, which is used to enhance the sealing performance, and the pressing plate is annular, and the sleeve and the sealing sleeve are arranged inside the pressing plate.

[0015] As a preferred embodiment of the present application, the valve cover is provided with a sealing cavity, the electromagnet body is arranged in the sealing cavity, and the iron core is slidingly arranged in the sealing cavity, the valve rod is arranged at the bottom of the iron core, and the end of the valve rod is connected with the center of the cover plate.

[0016] As a preferred embodiment of the present application, the sealing cavity is internally fixedly provided with a baffle, the valve rod is vertically arranged at the center of the baffle, the iron core is provided with a supporting plate at the bottom, the size of the supporting plate is larger than that of the iron core, the sealing cavity is internally provided with a return spring, one end of the return spring is clamped on the supporting plate, the other end is clamped on the inner side wall of the sealing cavity, and the compression direction of the return spring and the moving direction of the iron core are on the same straight line.

[0017] As a preferred embodiment of the present application, the adjusting rod is elliptical, the adjusting rod is inserted into the insertion slot arranged in the sealing sleeve, the cover plate and the valve rod, the end of the adjusting rod is provided with a rotating shaft, the rotating shaft penetrates the valve body, and the end of the rotating shaft is provided with a knob.

[0018] As a preferred embodiment of the present invention, a countersunk groove is provided at the bottom of the valve body, a positioning plate is inserted into the countersunk groove, the positioning plate and the countersunk groove are screwed together by bolts, and the positioning plate is rotatably connected to the rotating shaft, a friction plate is installed on the side wall of the rotating shaft, and the friction plate is adapted to the positioning plate, and the friction plate and the positioning plate are tightly fitted to position the adjusting rod.

[0019] As a preferred embodiment of the present invention, a fixing bracket is installed at the center position of the rubber membrane, and the fixing bracket is rotatably connected to the adjusting rod, a limiting rod is installed on the sealing plate, a limiting hole is opened at the bottom of the valve seat, the limiting hole is movably connected to the limiting rod, and a compression spring is clamped between the bottom of the sealing plate and the bottom of the valve body, and the compression direction of the compression spring is the same as the moving direction of the sealing plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention is provided with a flexibly rotatable adjusting rod, and cleverly cooperates with the notches of different heights on the sealing sleeve. By changing the corresponding positions of the two, the cross-sectional area of ​​the oil flow can be accurately adjusted. Whether it is fine adjustment of small flow or rapid switching of large flow, it can be easily achieved to meet the needs of diverse working conditions; and when the reverse pressure is too large, the rubber membrane deforms rapidly, driving the sealing plate to move up and fit tightly with the valve seat, and the rubber membrane fits tightly to the surface of the valve seat, thereby increasing the sealing area, and ultimately enhancing the sealing effect, effectively preventing the reverse flow of oil, avoiding damage to the system due to abnormal pressure, and greatly improving the safety and stability of the system.

[0022] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached figure:

[0024] Figure 1 A three-dimensional diagram of a high-pressure tank isolation valve with flexible switching direction;

[0025] Figure 2 A bottom view of a high-pressure fuel tank isolation valve with flexible switching direction;

[0026] Figure 3 This is an overall cross-sectional view of a high-pressure tank isolation valve with flexible switching direction;

[0027] Figure 4 It is a part of a high-pressure oil tank isolation valve with flexible switching direction. Figure 1 ;

[0028] Figure 5 A high-pressure oil tank isolation valve with flexible switching direction Figure 4 Bottom view;

[0029] Figure 6 It is a part of a high-pressure oil tank isolation valve with flexible switching direction. Figure 2 ;

[0030] Figure 7 It is a part of a high-pressure oil tank isolation valve with flexible switching direction. Figure 3 ;

[0031] Figure 8 It is a part of a high-pressure oil tank isolation valve with flexible switching direction. Figure 4 ;

[0032] Figure 9 It is a part of a high-pressure oil tank isolation valve with flexible switching direction. Figure 5 .

[0033] In the picture:

[0034] 1. Valve body; 11. Valve cover; 111. Top cover; 112. Guide plate; 113. Push rod; 12. Input pipe; 13. Output pipe; 14. Connecting frame; 141. Reinforcement plate; 142. Mounting hole; 15. Solenoid body; 151. Wire; 152. Positioning cover;

[0035] 2. Valve seat; 21. Casing; 211. Through hole; 22. Sealing sleeve; 221. Notch; 222. Sliding cavity; 23. Cover plate; 231. Pressure plate; 232. Sealing gasket; 24. Iron core; 241. Valve stem; 242. Support plate; 243. Return spring; 244. Baffle; 245. Sealing cavity;

[0036] 3. Adjustment rod; 31. Slot; 32. Knob; 321. Rotating shaft; 33. Friction plate; 331. Positioning plate; 332. Countersunk groove;

[0037] 4. Rubber membrane; 41. Fixing frame; 42. Sealing plate; 421. Limiting rod; 422. Limiting hole; 43. Compression spring. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0039] Example 1:

[0040] like Figures 1 to 9 As shown, a high-pressure oil tank isolation valve with flexible switching direction includes a valve body 1 and a valve cover 11.

[0041] The valve cover 11 is mounted on the valve body 1 , and the electromagnet body 15 is mounted on the valve cover 11 ;

[0042] The valve body 1 is internally provided with a valve seat 2 for dividing the chamber, the valve seat 2 is provided with a sleeve 21, the sleeve 21 is provided with a through hole 211, the valve seat 2 is slidably provided with a sealing sleeve 22, the sealing sleeve 22 is provided with a plurality of pairs of notches 221 which are not communicated with the sealing sleeve 22, and the sealing sleeve 22 is provided with a cover plate 23, the bottom of the cover plate 23 is provided with a pressing plate 231 which is pressed on the valve seat 2 for sealing the valve, and the valve seat 2 is provided with an electromagnet body 15 for driving the cover plate 23 to slide; the valve opening and closing and sealing core structure is formed by cooperation of the valve seat 2, the sleeve 21, the sealing sleeve 22, the cover plate 23 and the pressing plate 231, the pressing plate 231 is pressed on the valve seat 2 to realize sealing, thereby ensuring the sealing performance of the valve in the closed state and preventing oil leakage.

[0043] The heights of the plurality of pairs of notches 221 are different, and the sealing sleeve 22 is rotatably provided with an adjusting rod 3, the adjusting rod 3 is used for switching the through hole 211 to correspond to different notches 221 to change the flow; the operator can rotate the adjusting rod 3, align the through hole 211 with the notches 221 of different heights, flexibly change the cross-sectional area of the oil flow passage, and accurately adjust the flow to meet the oil delivery requirements under different working conditions.

[0044] The bottom of the valve seat 2 is provided with a sealing plate 42, the sidewall of the sealing plate 42 is provided with a rubber film 4, the rubber film 4 is used for closely adhering to the valve seat 2 to improve the sealing performance when the reverse pressure is too large. In the special working condition that the reverse pressure is too large, the rubber film 4 deforms to push the sealing plate 42 to move upward, closely adheres to the valve seat 2, effectively prevents the reverse flow of oil, enhances the sealing performance of the valve under complex working conditions, and improves the safety in use.

[0045] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 6 , in the specific embodiment, one end of the valve body 1 is provided with an input pipe 12, the input pipe 12 is communicated with one of the chambers in the valve body 1, the other end of the valve body 1 is provided with an output pipe 13, the output pipe 13 is communicated with the other chamber in the valve body 1, and the two chambers are blocked by the valve seat 2, the valve seat 2 is internally provided with a sliding cavity 222, and the sealing sleeve 22 is slidably arranged in the sliding cavity 222. The above structure forms a complete and reasonable oil flow path, the input pipe 12 and the output pipe 13 cooperate with the chambers to realize oil inlet and outlet, the sliding cavity 222 provides a sliding space for the sealing sleeve 22, and ensures smooth oil delivery

[0046] As shown in Figure 1 , Figure 2 and Figure 3As shown, further, the valve body 1 side wall is provided with two connecting frames 14, the two connecting frames 14 are L-shaped, and the two connecting frames 14 are centrally symmetrically distributed, a reinforcing plate 141 is mounted on the connecting frame 14, and the reinforcing plate 141 is arranged at the corner, the reinforcing plate 141 is triangular, and mounting holes 142 are formed in the surface of the connecting frame 14 for convenient mounting. The L-shaped connecting frame 14 cooperates with the mounting hole 142 to facilitate the stable installation of the valve body 1 at the specified position by bolts, the triangular reinforcing plate 141 enhances the strength of the corner of the connecting frame 14, optimizes the installation and fixing structure of the valve, enhances the overall stability, and is convenient for actual installation operation.

[0047] Embodiment 2:

[0048] Based on the above embodiment, the difference between this embodiment is: Figure 3 、 Figure 4 and Figure 5 As shown, the valve cover 11 is provided with a top cover 111, the top cover 111 is provided with a guide plate 112 around, the guide plate 112 is inserted into the periphery of the valve cover 11, the electromagnet body 15 is provided with a wire 151, and the wire 151 penetrates the valve cover 11, the electromagnet body 15 is provided with a positioning cover 152 on the outer side wall, the positioning cover 152 is installed in the stepped groove formed in the valve cover 11 by bolts, the top cover 111 is provided with a top rod 113 at the bottom, and the top rod 113 is extruded on the positioning cover 152 at the bottom. The guide plate 112 ensures that the top cover 111 is accurately inserted into the valve cover 11, the positioning cover 152 is fixed in the stepped groove by bolts, and cooperates with the top rod 113 to extrude and position, perfects the valve cover structure, improves the accuracy and stability of the electromagnet body 15 installation, and guarantees the electrical connection reliability.

[0049] As shown in Figure 4 、 Figure 5 and Figure 8 In the specific embodiment, the bottom of the pressing plate 231 is provided with a sealing gasket 232, the sealing gasket 232 is used to enhance the sealing property, and the pressing plate 231 is annular, and the sleeve 21 and the sealing sleeve 22 are arranged inside the pressing plate 231. The sealing gasket 232 increases the sealing effect between the pressing plate 231 and the valve seat 2, the annular pressing plate 231 arranges the sleeve 21 and the sealing sleeve 22 inside, further improves the sealing performance of the valve, prevents oil leakage, and guarantees the safety in use.

[0050] As shown in Figure 4 and Figure 5As shown, further, the valve cover 11 is provided with a sealing cavity 245, the electromagnet body 15 is arranged in the sealing cavity 245, and the iron core 24 is slidingly arranged in the sealing cavity 245. The bottom of the iron core 24 is provided with a valve rod 241, and the valve rod 241 is connected to the center of the cover plate 23. The sealing cavity 245 is fixedly provided with a baffle 244, and the valve rod 241 is vertically arranged in the center of the baffle 244. The bottom of the iron core 24 is provided with a supporting plate 242, and the size of the supporting plate 242 is larger than that of the iron core 24. The sealing cavity 245 is provided with a return spring 243, one end of the return spring 243 is clamped to the supporting plate 242, and the other end is clamped to the inner wall of the sealing cavity 245. The compression direction of the return spring 243 and the moving direction of the iron core 24 are on the same straight line. The sealing cavity 245 seals and protects the electromagnet body 15 and the iron core 24, preventing foreign matter from entering and affecting the operation of the components. The return spring 243 cooperates with the iron core 24 and the valve rod 241 to realize the automatic reset sealing of the cover plate 23 and the pressing plate 231 after the electromagnet is powered off, ensuring the stability and reliability of the valve action.

[0051] Embodiment 3:

[0052] Based on the above embodiment and the present embodiment, the difference is that, as shown in Figure 6 、 Figure 7 、 Figure 8 and Figure 9 , the top of the adjusting rod 3 is movably inserted into the insertion slot 31 in the sealing sleeve 22, the cover plate 23 and the valve rod 241. The adjusting rod 3 is elliptical, and the shape of the adjusting rod 3 is adapted to the shape of the insertion slot 31. The end of the adjusting rod 3 is provided with a rotating shaft 321, the rotating shaft 321 penetrates the valve body 1, and the end of the rotating shaft 321 is provided with a knob 32. The elliptical adjusting rod 3 is adapted to the insertion slot 31, ensuring stable power transmission when the adjusting rod 3 is rotated. The knob 32 and the rotating shaft 321 facilitate the rotation operation of the adjusting rod 3 by the operator, realizing flexible adjustment of the flow.

[0053] As shown in Figure 2 、 Figure 7 and Figure 9 , in the specific embodiment, the bottom of the valve body 1 is provided with a countersunk groove 332, and the countersunk groove 332 is movably inserted with a positioning plate 331. The positioning plate 331 is connected to the countersunk groove 332 by screwing, and the positioning plate 331 is rotatably connected to the rotating shaft 321. The side wall of the rotating shaft 321 is provided with a friction plate 33, and the friction plate 33 is adapted to the positioning plate 331. The friction plate 33 is closely attached to the positioning plate 331 for positioning the adjusting rod 3. The positioning plate 331 is closely attached to the friction plate 33, limiting the rotation of the rotating shaft 321 in the normal state, preventing the adjusting rod 3 from rotating unexpectedly due to external force, and ensuring the stable operation of the valve at the set flow. When the flow needs to be adjusted, the positioning plate 331 can be operated to release the limit, and the operation is flexible.

[0054] As shown in Figure 6 , Figure 7 and Figure 9 Further, the rubber film 4 is installed at the center position of the fixed frame 41, and the fixed frame 41 is rotatably connected with the adjusting rod 3, the limiting rod 421 is installed on the sealing plate 42, the limiting hole 422 is arranged at the bottom of the valve seat 2, the limiting hole 422 is movably inserted with the limiting rod 421, the compression spring 43 is arranged between the bottom of the sealing plate 42 and the bottom of the valve body 1, and the compression direction of the compression spring 43 is the same as the moving direction of the sealing plate 42. The fixed frame 41 realizes the connection of the rubber film 4 and the adjusting rod 3, the limiting rod 421 and the limiting hole 422 cooperate to guide the movement of the sealing plate 42, the compression spring 43 provides power for the reset of the sealing plate 42, and the multiple components work together to ensure that the sealing plate 42 and the rubber film 4 can reliably act under the conditions of normal oil flow and reverse pressure, and the sealing performance of the valve is guaranteed.

[0055] The implementation principle of the high-pressure oil tank isolation valve capable of flexibly switching direction is as follows:

[0056] During installation, the valve body 1 is stably installed at a specified position by using the mounting holes 142 on the surface of the two L-shaped connecting frames 14 symmetrically distributed on the side wall of the valve body 1 to cooperate with bolts for fixation, and the triangular reinforcing plates 141 at the corners of the connecting frames 14 enhance the structural stability, laying a foundation for subsequent use in a high-pressure environment. During installation of the valve cover 11, the accurate insertion of the guide plate 112 into the valve body 1, the extrusion of the positioning cover 152 of the electromagnet body 15 by the top rod 113 on the top cover 111, and the fixation of the positioning cover 152 in the stepped groove of the valve cover 11 by bolts ensure that the valve cover 11 is firmly installed and that the electrical connection of the electromagnet body 15 is normal, enabling stable energization.

[0057] When the valve needs to be opened, the electromagnet body 15 is energized by an external power source, and under the action of the magnetic field force, the iron core 24 is attracted, and the reset spring 243 is in a compressed state in the initial state, generating a downward elastic force to hinder the movement of the iron core 24. As the magnetic field force of the electromagnet gradually increases and exceeds the elastic force of the reset spring 243, the iron core 24 starts to slide upward along the sealing cavity 245.

[0058] The upward movement of the iron core 24 is transmitted to the cover plate 23 through the valve rod 241, and as the iron core 24 continues to move upward, the valve rod 241 pulls the cover plate 23 to move upward synchronously, and the cover plate 23 drives the bottom pressing plate 231 to gradually separate from the valve seat 2. The sealing gasket 232 at the bottom of the pressing plate 231 is originally tightly attached to the valve seat 2 to play a sealing role, and when the pressing plate 231 moves upward, a gap is formed between them to create a passage for the flow of high-pressure oil.

[0059] At this time, the high pressure oil enters one chamber of the valve body 1 from the input pipe 12 under the drive of the pressure difference. Due to the separation of the valve seat 2, the oil needs to pass through the sleeve 21 on the valve seat 2. The through hole 211 on the sleeve 21 serves as the key channel for the oil flow, guiding the oil to enter the area of the sealing sleeve 22. The gap 221 on the sealing sleeve 22 is aligned with the through hole 211, and the oil smoothly flows to the other chamber of the valve body 1 through the gap 221, and finally flows out from the output pipe 13, completing the oil delivery process.

[0060] During the flow regulation process, the operator first needs to perform the unlocking operation of the positioning plate 331. The positioning plate 331 is connected with the counterbore groove 332 at the bottom of the valve body 1 through bolts, and is rotationally connected with the rotating shaft 321, and is tightly attached to the friction plate 33 on the side wall of the rotating shaft 321, which plays a positioning role in the normal state, preventing the adjustment rod 3 from being unexpectedly rotated due to external force, and ensuring that the valve works stably at the set flow.

[0061] When the flow needs to be adjusted, the operator loosens the bolts fixing the positioning plate 331, so that the positioning plate 331 has a certain space of movement in the counterbore groove 332, and by slightly lifting or moving the positioning plate 331, it is separated from the friction plate 33, so as to release the limiting constraint on the rotating shaft 321. After unlocking, the knob 32 is manually rotated, and the knob 32 is fixedly connected with the rotating shaft 321, so that the rotation of the knob 32 drives the rotating shaft 321 to rotate synchronously.

[0062] The rotation of the rotating shaft 321 is transmitted to the adjustment rod 3, and since the sealing sleeve 22 is provided with a plurality of gaps 221 with different heights, when the adjustment rod 3 rotates, the gaps 221 with different heights will be aligned with the through hole 211 in turn. The height difference of the gap 221 aligned with the through hole 211 forms different oil flow passage cross-sectional areas. According to the principle of fluid mechanics, under the condition of constant pressure, the larger the passage cross-sectional area, the greater the flow of oil; on the contrary, the smaller the passage cross-sectional area, the smaller the flow of oil. When the flow is adjusted to the required value, the operator tightly attaches the positioning plate 331 to the friction plate 33 again, and fixes the positioning plate 331 by tightening the bolts, so that the positioning plate 331 again plays a limiting role on the rotating shaft 321, locks the position of the adjustment rod 3, and ensures the stability of the flow, preventing the adjustment rod 3 from rotating and changing the flow due to vibration and other factors.

[0063] When the oil flows normally, the oil will flow from the sliding cavity 222 as it flows through the gap 221 on the sealing sleeve 22 to another chamber. The oil flowing into the sliding cavity 222 will generate a downward pressure on the rubber film 4, and the rubber film 4 will be deformed downward under the pressure. When the rubber film 4 is deformed downward, the sealing plate 42 will be moved downward synchronously. During the downward movement of the sealing plate 42, the compression spring 43 will be further compressed to store elastic potential energy for the reset of the sealing plate 42. When the sealing plate 42 moves to a certain position, the flow channel of the oil is completely unblocked, and the oil can flow more smoothly from the input pipe 12 to the output pipe 13 through the internal chamber of the valve body 1.

[0064] In actual working conditions, when the equipment suddenly stops running, the oil in the high-pressure tank system still maintains a flow trend due to inertia, and a pressure fluctuation is formed in the pipeline to generate a reverse pressure. Or when the downstream pipeline is blocked or bent, the oil cannot be normally discharged, and the pressure will accumulate in the pipeline to form a reverse pressure. When the reverse pressure is too large due to these conditions, the rubber film 4 will be deformed under the action of the reverse pressure, the sealing plate 42 will be moved upward, the rubber film 4 will be tightly attached to the valve seat 2, the upper limiting rod 421 of the sealing plate 42 will slide and guide in the limiting hole 422, and the compression spring 43 will be compressed to store energy. After the reverse pressure disappears, the spring releases the potential energy to push the sealing plate 42 to reset.

[0065] When it is necessary to close the valve, the electromagnet body 15 is powered off, the reset spring 243 pushes the iron core 24 and the valve rod 241 to move downward, the cover plate 23 drives the pressing plate 231 to press the valve seat 2 again to achieve sealing and closing.

Claims

1. A high-pressure oil tank isolation valve with flexible switching direction, comprising a valve body (1) and a valve cover (11), characterized in that: The valve cover (11) is mounted on the valve body (1), and an electromagnet body (15) is mounted on the valve cover (11); A valve seat (2) for dividing a chamber is installed inside the valve body (1), a sleeve (21) is installed on the valve seat (2), a through hole (211) is provided on the sleeve (21), a sealing sleeve (22) is slidably installed on the valve seat (2), a plurality of pairs of notches (221) that are not communicated with the chamber of the sealing sleeve (22) are provided on the sealing sleeve (22), a cover plate (23) is installed on the sealing sleeve (22), a pressure plate (231) is installed at the bottom of the cover plate (23), and the pressure plate (231) is pressed on the valve seat (2) for sealing the valve, and an electromagnet body (15) for driving the cover plate (23) to slide is installed on the valve seat (2); The heights of the plurality of pairs of notches (221) are different, and an adjusting rod (3) is rotatably installed inside the sealing sleeve (22), and the adjusting rod (3) is used to switch the through hole (211) and the different notches (221) to change the flow rate accordingly; The bottom of the valve seat (2) is fitted with a sealing plate (42), and the side wall of the sealing plate (42) is installed with a rubber membrane (4). The rubber membrane (4) is used to fit tightly with the valve seat (2) to improve its sealing performance when the reverse pressure is too large.

2. A high-pressure oil tank isolation valve with flexible switching direction according to claim 1, characterized in that: An input pipe (12) is installed at one end of the valve body (1), and the input pipe (12) is communicated with one of the chambers in the valve body (1). An output pipe (13) is installed at the other end of the valve body (1), and the output pipe (13) is communicated with another chamber in the valve body (1), and the two chambers are blocked by the valve seat (2). A sliding cavity (222) is provided inside the valve seat (2), and the sealing sleeve (22) is slidably arranged in the sliding cavity (222).

3. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1 is characterized in that: Two connecting frames (14) are installed on the side wall of the valve body (1), the two connecting frames (14) are L-shaped, and the two connecting frames (14) are centrally symmetrically distributed. A reinforcing plate (141) is installed on the connecting frame (14), and the reinforcing plate (141) is arranged at a corner. The reinforcing plate (141) is triangular, and a mounting hole (142) is opened on the surface of the connecting frame (14) for convenient installation.

4. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1 is characterized in that: The valve cover (11) is provided with a top cover (111), and guide plates (112) are provided around the top cover (111), and the guide plates (112) are plugged into the periphery of the valve cover (11). A wire (151) is provided on the electromagnet body (15), and the wire (151) passes through the valve cover (11). A positioning cover (152) is provided on the outer wall of the electromagnet body (15), and the positioning cover (152) is provided in a stepped groove provided on the valve cover (11) by means of bolts. A push rod (113) is provided at the bottom of the top cover (111), and the bottom of the push rod (113) is pressed on the positioning cover (152).

5. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1 is characterized in that: A sealing gasket (232) is provided at the bottom of the pressing plate (231), and the sealing gasket (232) is used to enhance the sealing performance. The pressing plate (231) is annular, and the sleeve (21) and the sealing sleeve (22) are placed on the inner side of the pressing plate (231).

6. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1 is characterized in that: A sealed cavity (245) is provided on the valve cover (11), an output end of the electromagnet body (15) is placed in the sealed cavity (245), and an iron core (24) is slidably arranged in the sealed cavity (245), a valve stem (241) is installed at the bottom of the iron core (24), and the end of the valve stem (241) is connected to the center position of the cover plate (23).

7. The high-pressure oil tank isolation valve with flexible switching direction according to claim 6 is characterized in that: A baffle (244) is fixedly installed inside the sealed cavity (245), and a valve stem (241) is vertically penetrated through the center of the baffle (244). A support plate (242) is installed at the bottom of the iron core (24), and the size of the support plate (242) is larger than the size of the iron core (24). A return spring (243) is provided inside the sealed cavity (245), and one end of the return spring (243) is clamped on the support plate (242), and the other end is clamped on the inner wall of the sealed cavity (245), and the compression direction of the return spring (243) and the movement direction of the iron core (24) are both on the same straight line.

8. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1 is characterized in that: The top of the regulating rod (3) is movably inserted into a slot (31) provided inside the sealing sleeve (22), the cover plate (23) and the valve stem (241); the regulating rod (3) is elliptical in shape, and the regulating rod (3) and the slot (31) are adapted in shape; a rotating shaft (321) is installed at the end of the regulating rod (3); the rotating shaft (321) passes through the valve body (1); and a knob (32) is installed at the end of the rotating shaft (321).

9. The high-pressure oil tank isolation valve with flexible switching direction according to claim 8, characterized in that: The bottom of the valve body (1) is provided with a countersunk groove (332), and a positioning plate (331) is inserted into the countersunk groove (332). The positioning plate (331) and the countersunk groove (332) are screwed together by bolts, and the positioning plate (331) is rotatably connected to the rotating shaft (321). A friction plate (33) is installed on the side wall of the rotating shaft (321), and the friction plate (33) is adapted to the positioning plate (331). The friction plate (33) and the positioning plate (331) are tightly fitted together for positioning the position of the adjustment rod (3).

10. The high-pressure oil tank isolation valve with flexible switching direction according to claim 1, characterized in that: A fixing frame (41) is installed at the center of the rubber membrane (4), and the fixing frame (41) is rotatably connected to the regulating rod (3). A limiting rod (421) is installed on the sealing plate (42). A limiting hole (422) is provided at the bottom of the valve seat (2). The limiting hole (422) is movably connected to the limiting rod (421). A compression spring (43) is provided between the bottom of the sealing plate (42) and the bottom of the valve body (1). The compression direction of the compression spring (43) is the same as the moving direction of the sealing plate (42).

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