Solenoid valve capable of effectively enhancing sealing performance

Abstract

The invention relates to the technical field of electromagnetic valves, and discloses an electromagnetic valve capable of effectively enhancing sealing performance, which comprises an electromagnetic valve body, and a partition plate, a sealing assembly, a communicating assembly and a leakage locking assembly which are arranged in the electromagnetic valve body and are provided with a sealing opening. Primary sealing is achieved through a sealing gasket and a first conical sealing ring on a positioning table, when liquid leaks due to the fact that a sealing part is abraded after the electromagnetic valve is used for multiple times, leaked liquid enters a compression cavity, the pressure in the compression cavity is increased, and a compression piston is pushed to move downwards; the second conical sealing ring and the boss move downwards; and on the other hand, a top plate is rotated through a synchronous rod and other components, a positioning table is pushed to move upwards, a first conical sealing ring and sealing gaskets move upwards, the pressure between the sealing gaskets is increased through reverse movement cooperation of an upper sealing component and a lower sealing component, original set extrusion pressure is separated, the possibility of liquid leakage is reduced, and automatic compensation sealing under the leakage condition is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of solenoid valves, and in particular relates to a solenoid valve with effectively enhanced sealing performance. Background Art

[0002] Currently, in the refrigeration and air conditioning sectors, refrigerant solenoid valves, as key components for controlling refrigerant flow, are widely used in various refrigeration equipment. Common refrigerant valves primarily utilize a solenoid valve structure. Their operating principle is to utilize the magnetic field generated by energizing the electromagnetic coil to actuate the valve core, thereby achieving on-off control and flow regulation of the refrigerant.

[0003] However, existing solenoid valves have exposed numerous sealing issues during actual use. On the one hand, conventional sealing structures are relatively simple, often relying on simple flat seals or a single sealing element. Under prolonged, frequent opening and closing operations and the impact of the refrigerant, the sealing element is prone to wear and deformation, resulting in a decrease in sealing performance and, in turn, refrigerant leakage. Once the refrigerant leaks, it not only reduces the operating efficiency of the refrigeration system and increases energy consumption, but in severe cases, it can even cause the entire refrigeration equipment to malfunction. On the other hand, when the sealing component wears out and leaks occur, existing solenoid valves lack an effective automatic compensation mechanism, making it difficult to promptly enhance the sealing effect after a leak occurs. Manual inspection and replacement of the sealing component are required, which not only increases maintenance costs but can also affect the normal use of the equipment due to untimely maintenance.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A solenoid valve with effectively enhanced sealing performance comprises a solenoid valve body and a partition plate installed inside the solenoid valve body and provided with a sealing opening.

[0007] A positioning ring is installed on the partition, and a positioning platform is installed on the positioning ring, and a sealing gasket and a first conical sealing ring are installed on the top and side wall of the positioning platform respectively;

[0008] A sealing assembly is installed at the output end of the solenoid valve body, and the sealing assembly includes a connecting cover and a sealing plate sliding on a slide rail provided inside the connecting cover, and a boss and a second conical sealing ring adapted to the sealing gasket and the first conical sealing ring are installed at the bottom of the sealing plate;

[0009] The connecting cover is provided with a connecting component for guiding the flow of leaking liquid and a leakage locking component which is triggered to move by the leaking liquid;

[0010] The leakage locking assembly includes a compression piston, on which is installed an extrusion block that runs synchronously and corresponds to the sealing plate. A pressure rod is installed at the bottom of the compression piston, and the pressure rod corresponds to the top plate rotatably installed on the side wall of the positioning ring, and the end of the top plate is squeezed on the lower edge of the positioning platform.

[0011] As a preferred embodiment of the present invention, quick connectors are installed at both ends of the solenoid valve body, an inspection door is installed at the bottom of the solenoid valve body by bolts, the partition is used to divide two chambers connected to different quick connectors, and the sealing port is used to connect the two chambers.

[0012] As a preferred embodiment of the present invention, a pressure plate is installed on the positioning ring, and the pressure plate is slidably arranged in a sliding cavity opened inside the positioning platform. A column is installed on the pressure plate, and the top of the column fits in the inner cavity of the positioning platform. A tension spring is sleeved on the side wall of the column, and one end of the tension spring is clamped on the side wall of the sliding cavity, and the other end of the tension spring is clamped on the pressure plate.

[0013] As a preferred embodiment of the present invention, a positioning block is installed on the positioning ring, the positioning block is overlapped on the lower surface of the positioning platform, a baffle is installed on the inner side wall of the positioning platform, the baffle is annular, and the first conical sealing ring is installed above the baffle.

[0014] As a preferred embodiment of the present invention, the connecting cover is equipped with a mounting bracket, the mounting bracket is interconnected with the output end of the solenoid valve body, the side wall of the sealing plate is equipped with a slider, the slider is slidably arranged inside the slide rail, and a limit rod is vertically installed inside the slide rail, and the limit rod movably passes through the slider, and a limit spring is sleeved on the outer wall of the limit rod, one end of the limit spring is clamped on the side wall of the slider, and the other end of the limit spring is clamped on the inner wall of the slide rail.

[0015] As a preferred embodiment of the present invention, a sealing cover is installed at the bottom of the connecting cover, the inner diameter of the sealing cover is adapted to the outer diameter of the positioning platform, a guide slope is installed at the top of the sealing cover, the sealing plate covers the guide slope, a liquid outlet is installed at the lowest point of the guide slope, the bottom of the liquid outlet is communicated with the connecting cavity installed inside the connecting cover, and a connecting passage is installed on the connecting cavity, the end of the connecting passage is communicated with the compression cavity opened on the side wall of the connecting cover, and the compression cavity is placed above the compression piston, and a connecting component is connected to the inside of the connecting cavity.

[0016] As a preferred embodiment of the present invention, the connecting component includes a piston column, which is slidably arranged in the connecting chamber. Two through holes that are interconnected are opened on the piston column, and the two through holes correspond to the connecting passage and the liquid outlet respectively. A reset spring is installed between the piston column and the inner wall of the connecting chamber, and the compression direction of the reset spring and the moving direction of the piston column are on the same straight line. A retaining ring is installed at the inlet of the connecting chamber, and the retaining ring is in contact with the piston column.

[0017] As a preferred embodiment of the present invention, a protruding rod is installed on the side wall of the piston column, and the protruding rod movably passes through the side wall of the connecting cover. A mounting cover adapted to the outer diameter of the connecting cover is installed on the side wall of the partition, and the mounting cover and the partition are connected by bolts. A conical plate is installed on the top of the mounting cover, and the conical plate and the end of the protruding rod are adapted to each other, and the end of the protruding rod is chamfered.

[0018] As a preferred embodiment of the present invention, a push rod is installed on the top of the compression piston, and the push rod movably passes through the connecting cover. An extrusion block is installed on the top of the push rod, and a positioning spring is sleeved on the push rod. One end of the positioning spring is clamped on the inner wall of the compression chamber, and the other end of the positioning spring is clamped on the compression piston. A synchronization rod is installed at the bottom of the compression piston, a synchronization bracket is installed on the synchronization rod, and a pressure rod is installed at the end of the synchronization bracket.

[0019] As a preferred embodiment of the present invention, a connecting seat is installed on the side wall of the positioning ring, a clamping shaft is installed on the connecting seat, and a top plate is installed on the clamping shaft, the top plate is in an inclined state, and a torsion spring is sleeved on the clamping shaft, one end of the torsion spring is clamped on the connecting seat, and the other end is clamped on the top plate.

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

[0021] The present invention realizes the primary sealing by the sealing gasket and the first conical sealing ring on the positioning platform, and the boss and the second conical sealing ring adapted thereto on the sealing plate. At the same time, the connecting cover drops to the lowest point to exert a downward force on the sealing plate, ensuring that the sealing components are tightly fitted, playing a secondary sealing effect, and enhancing the overall sealing of the solenoid valve; and when the connecting cover drops, the connecting component is kept in an open state, preparing for possible subsequent leakage situations, ensuring that the leaked liquid can smoothly flow into the specific channel; when the sealing components are worn after the solenoid valve has been used many times and liquid leaks, the leaked liquid flows into the compression chamber through a specific path, increasing the pressure in the compression chamber and pushing the compression piston downward. The downward movement of the compression piston drives the extrusion block to move the sealing plate downward, and the second conical sealing ring and the boss to move downward; on the other hand, the top plate is rotated by the synchronization rod and other components, pushing the positioning platform upward, so that the first conical sealing ring and the sealing gasket move upward, and the reverse movement of the upper and lower sealing components increases the pressure between the sealing gaskets, deviates from the original set extrusion pressure, reduces the possibility of liquid leakage, and realizes automatic compensation sealing in the event of leakage.

[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 schematic diagram of the three-dimensional structure of a solenoid valve that effectively enhances sealing performance;

[0025] Figure 2 A cross-sectional view of a solenoid valve that effectively enhances sealing performance;

[0026] Figure 3 A partial cross-section of a solenoid valve that effectively enhances sealing Figure 1 ;

[0027] Figure 4 A partial cross-section of a solenoid valve that effectively enhances sealing Figure 2 ;

[0028] Figure 5 It is a solenoid valve that effectively enhances the sealing performance Figure 5 Enlarged view of point A in the middle;

[0029] Figure 6 It is a solenoid valve that effectively enhances the sealing performance Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 A bottom view of a sealing plate of a solenoid valve that effectively enhances sealing performance;

[0031] Figure 8 A three-dimensional diagram of a connection cover of a solenoid valve that effectively enhances sealing.

[0032] In the picture:

[0033] 1. Solenoid valve body; 11. Quick connector; 12. Inspection door; 13. Partition; 131. Sealing port;

[0034] 2. Positioning ring; 21. Positioning platform; 211. Sealing gasket; 212. Sliding cavity; 22. Pressing plate; 221. Tension spring; 222. Positioning block; 223. Column; 23. Baffle; 231. First conical sealing ring; 24. Connecting seat; 241. Clamping shaft; 242. Top plate; 243. Torsion spring;

[0035] 3. Connecting cover; 31. Mounting bracket; 32. Sealing plate; 321. Second conical sealing ring; 322. Boss; 33. Slider; 331. Slide rail; 332. Limit rod; 333. Limit spring; 34. Sealing cover; 341. Guide slope; 342. Liquid outlet; 35. Connecting chamber; 351. Retaining ring; 352. Connecting passage; 353. Compression chamber; 36. Piston column; 361. Through hole; 362. Boss; 363. Conical plate; 364. Mounting cover; 365. Return spring;

[0036] 4. Compression piston; 41. Push rod; 411. Extrusion block; 412. Positioning spring; 42. Synchronous rod; 421. Synchronous bracket; 422. Pressure rod. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1:

[0039] like Figures 1 to 8 As shown, a solenoid valve with effectively enhanced sealing performance includes a solenoid valve body 1 and a partition 13 installed inside the solenoid valve body and having a sealing port 131 opened therein.

[0040] A positioning ring 2 is installed on the partition 13, and a positioning platform 21 is installed on the positioning ring 2. A sealing gasket 211 and a first conical sealing ring 231 are installed on the top and side walls of the positioning platform 21 respectively; a sealing assembly is installed at the output end of the solenoid valve body 1, and the sealing assembly includes a connecting cover 3 and a sealing plate 32 sliding on a slide rail 331 opened inside the solenoid valve body; a boss 322 and a second conical sealing ring 321 adapted to the sealing gasket 211 and the first conical sealing ring 231 are installed at the bottom of the sealing plate 32; the sealing gasket 211, the first conical sealing ring 231 and the boss 322 and the second conical sealing ring 321 that cooperate with each other can increase the overall sealing of the solenoid valve.

[0041] The connecting cover 3 is equipped with a connecting component for guiding the flow direction of the leaking liquid and a leakage locking component that is triggered to move by the leaking liquid; the leakage locking component includes a compression piston 4, on which is installed an extrusion block 411 that runs synchronously and corresponds to the sealing plate, and a pressure rod 422 is installed at the bottom of the compression piston 4. The pressure rod 422 corresponds to the top plate 242 that is rotatably installed on the side wall of the positioning ring 2, and the end of the top plate is squeezed on the lower edge of the positioning platform 21.

[0042] like Figure 1 and Figure 2 As shown, in a specific embodiment, quick connectors 11 are installed at both ends of the solenoid valve body 1, which facilitates its rapid installation into the designated pipeline, greatly shortens the installation time, and reduces the installation cost. An inspection door 12 is installed at the bottom of the solenoid valve body 1 by bolts, and an inspection door 12 is installed at the bottom of the solenoid valve body 1 by bolts, which facilitates regular inspection and maintenance of internal components, improves maintenance efficiency, and reduces maintenance difficulty. The partition 13 is used to divide two chambers connected to different quick connectors 11, and the sealing port 131 is used to connect the two chambers.

[0043] Example 2:

[0044] The difference between Example 1 and this example is that: Figure 3 、 Figure 4 and Figure 6 As shown, a pressure plate 22 is mounted on the positioning ring 2. The pressure plate 22 is slidably disposed in a sliding cavity 212 provided inside the positioning platform 21. A column 223 is mounted on the pressure plate 22. The top of the column 223 fits within the inner cavity of the positioning platform 21. A tension spring 221 is sleeved on the side wall of the column 223. One end of the tension spring 221 is clamped to the side wall of the sliding cavity 212, and the other end of the tension spring 221 is clamped to the pressure plate 22. A positioning block 222 is mounted on the positioning ring 2. The positioning block 222 overlaps the lower surface of the positioning platform 21. The positioning block 222 provides auxiliary support for the positioning platform 21, enhancing structural stability. A baffle 23 is mounted on the inner side wall of the positioning platform 21. The baffle 23 is annular, and a first conical sealing ring 231 is mounted above the baffle 23. The above structure specifically discloses the installation structure of the positioning platform 21.

[0045] like Figure 7 and Figure 8As shown, further, the connection cover 3 is installed with a mounting bracket 31, and the mounting bracket 31 is interconnected with the output end of the solenoid valve body 1. A slider 33 is installed on the side wall of the sealing plate 32. The slider 33 is slidably arranged inside the slide rail 331, and a limit rod 332 is vertically installed inside the slide rail 331. The limit rod 332 movably passes through the slider 33. A limit spring 333 is sleeved on the outer wall of the limit rod 332. One end of the limit spring 333 is clamped on the side wall of the slider 33, and the other end of the limit spring 333 is clamped on the inner wall of the slide rail 331. The provision of the limit spring 333 further enhances the sealing effect of the sealing plate 32, ensuring that the sealing component is always tightly fitted during long-term use, and the limit spring 333 also facilitates later reset.

[0046] Example 3:

[0047] The difference between Example 2 and this example is that: Figure 4 、 Figure 5 and Figure 8 As shown, a sealing cover 34 is installed at the bottom of the connecting cover 3, the inner diameter of the sealing cover 34 is adapted to the outer diameter of the positioning platform 21, a guide slope 341 is installed on the top of the sealing cover 34, the sealing plate 32 covers the guide slope 341, and a liquid outlet 342 is installed at the lowest point of the guide slope 341. The bottom of the liquid outlet 342 is interconnected with the connecting chamber 35 installed inside the connecting cover 3, and a connecting passage 352 is installed on the connecting chamber 35. The end of the connecting passage 352 is interconnected with the compression chamber 353 opened on the side wall of the connecting cover 3, and the compression chamber 353 is placed above the compression piston 4, and a connecting component is connected to the inside of the connecting chamber 35. When liquid leaks, the leaked liquid can flow outward along the gap between the first conical sealing ring 231 and the second conical sealing ring 321 and the gap between the sealing gasket 211 and the boss 322, and then the leaked liquid can flow outward along the outer edge of the positioning platform 21. At this time, the flowing liquid is blocked by the sealing cover 34 attached to the outside of the positioning platform 21, and then the liquid can flow into the guide slope 341 on the sealing cover 34, and finally the liquid can slide along the liquid outlet 342, the two identical through holes 361, and the connecting passage 352 into the compression chamber 353.

[0048] like Figure 5As shown, in a specific embodiment, the connecting component includes a piston column 36, which is slidably arranged in the connecting chamber 35. Two through holes 361 that are interconnected are opened on the piston column 36, and the two through holes 361 correspond to the connecting passage 352 and the liquid outlet 342 in an alternating manner. A return spring 365 is installed between the piston column 36 and the inner wall of the connecting chamber 35. The compression direction of the return spring 365 and the moving direction of the piston column 36 are on the same straight line. A retaining ring 351 is installed at the inlet of the connecting chamber 35, and the retaining ring 351 is in contact with the piston column 36. A protruding rod 362 is mounted on the side wall of the piston column 36. The protruding rod 362 movably penetrates the side wall of the connecting cover 3. A mounting cover 364 is mounted on the side wall of the partition 13, which is adapted to the outer diameter of the connecting cover 3. The mounting cover 364 and the partition 13 are connected by bolts. A conical plate 363 is mounted on the top of the mounting cover 364. The conical plate 363 and the end of the protruding rod 362 are adapted to each other, and the end of the protruding rod 362 is chamfered. When the connecting cover 3 is lowered, the connecting components of its side wall also move synchronously. The protruding rod 362 on the surface moves downward synchronously with the connecting cover 3. When the protruding rod 362 slides to the conical plate 363, the protruding rod 362 is squeezed and slides into the interior of the connecting cover 3, thereby driving the piston column 36 to slide in the connecting cavity 35. At this time, the return spring 365 can be compressed, and the return spring 365 facilitates the subsequent reset. After the piston column 36 stops sliding, the liquid outlet 342 on the guide slope 341 corresponds to the through hole 361 on the right side of the piston column 36, and the through hole 361 on the left side of the piston column 36 is connected to the connecting passage 352. At this time, the entire connecting component is in an open state, preparing for subsequent leakage.

[0049] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8As shown, further, a push rod 41 is mounted on the top of the compression piston 4. The push rod 41 movably passes through the connecting cover 3. An extrusion block 411 is mounted on the top of the push rod 41. A positioning spring 412 is sleeved on the push rod 41. One end of the positioning spring 412 is clamped to the inner wall of the compression chamber 353, and the other end of the positioning spring 412 is clamped to the compression piston 4. A synchronization rod 42 is mounted on the bottom of the compression piston 4. A synchronization bracket 421 is mounted on the synchronization rod 42, and a pressure rod 422 is mounted on the end of the synchronization bracket 421. A connecting seat 24 is mounted on the side wall of the positioning ring 2. A clamping shaft 241 is mounted on the connecting seat 24, and a top plate 242 is mounted on the clamping shaft 241. The top plate 242 is in an inclined state. A torsion spring 243 is sleeved on the clamping shaft 241. One end of the torsion spring 243 is clamped to the connecting seat 24 and the other end is clamped to the top plate 242. As the liquid continues to leak, the pressure in the compression chamber 353 continues to increase, which in turn drives the compression piston 4 at the bottom to slide downward as a whole. At this time, the top rod 41 on the surface moves downward synchronously. The downward movement of the top rod 41 can drive the extrusion block 411. At this time, the extrusion block 411 presses the sealing plate 32 downward, and the sealing plate 32 can drive the second conical sealing ring 321 and the boss 322 to move downward. When the compression piston 4 moves downward, the compression piston 4 drives the bottom synchronization rod 42 downward. The synchronization bracket 421 at the bottom of the synchronization rod 42 drives the pressure rod 422 downward. The pressure rod 422 presses the bottom top plate 242. At this time, the top plate 242 rotates around the clamping shaft 241 and twists the torsion spring 243. Through the torsion spring 243, the housing is opened. After the top plate 242 rotates, the other end of the top plate 242 presses the positioning platform 21 upward, thereby pushing the first conical sealing ring 231 and the sealing gasket 211 to move upward synchronously. Finally, the second conical sealing ring 321 and the boss 322 move downwards and the first conical sealing ring 231 and the sealing gasket 211 move upwards in coordination with each other, thereby increasing the pressure between the sealing gaskets and breaking away from the extrusion pressure originally set by the solenoid valve body 1, thereby reducing the possibility of liquid leakage from the sealing gaskets.

[0050] The implementation principle of the solenoid valve of the present invention that effectively enhances sealing is as follows:

[0051] During normal use of the device, the operator can install the solenoid valve body 1 as a whole in a designated pipeline via the quick connector 11. When the fluid in the pipeline needs to be shut off, the operator can activate the solenoid valve body 1, and the output end of the solenoid valve body 1 can be used to control the connection cover 3 connected to the mounting bracket 31 to descend. The raising and lowering operation of the output end of the solenoid valve body 1 is conventional technology, and its working principle will not be repeated here.

[0052] When the connecting cover 3 descends, the connecting cover 3 descends synchronously, driving the sealing plate 32 on the side wall to slide downward synchronously at this time, and stops moving when the second conical sealing ring 321 and the boss 322 at the bottom of the sealing plate 32 contact the corresponding first conical sealing ring 231 and the sealing gasket 211. At this time, the sealing cover 34 on the side wall of the connecting cover 3 slides to the side wall of the positioning platform 21, and is initially sealed by the sealing cover 34.

[0053] When the cam 331 is in the closed position, the locking cam 332 is in the closed position, and the locking cam 333 is in the closed position, so that the cam 332 is locked and the locking cam 333 is locked.

[0054] When the connecting cover 3 descends, the connecting components of its side walls also move synchronously, and the protruding rod 362 on the surface moves downward synchronously with the connecting cover 3. When the protruding rod 362 slides to the conical plate 363, the protruding rod 362 is squeezed and slides toward the inside of the connecting cover 3, thereby driving the piston column 36 to slide in the connecting cavity 35. At this time, the reset spring 365 can be compressed, and the reset spring 365 is used to facilitate later reset.

[0055] After the piston column 36 stops sliding, the liquid outlet 342 on the guide slope 341 corresponds to the through hole 361 on the right side of the piston column 36, and the through hole 361 on the left side of the piston column 36 is connected to the connecting passage 352. At this time, the entire connecting component is in an open state, preparing for subsequent leakage.

[0056] With repeated use of the solenoid valve body 1, the surfaces of the first conical sealing ring 231, the second conical sealing ring 321 and the sealing gasket 211 in the solenoid valve body 1 are prone to wear, which will cause the pressure originally applied on their surfaces to fail to achieve complete sealing, and may cause some liquid to leak.

[0057] Therefore, the leaked liquid can flow outward along the gap between the first conical sealing ring 231 and the second conical sealing ring 321 and the gap between the sealing gasket 211 and the boss 322, and the leaked liquid can flow outward along the outer edge of the positioning platform 21. At this time, the flowing liquid is blocked by the sealing cover 34 attached to the outside of the positioning platform 21, and the liquid can flow into the guide slope 341 on the sealing cover 34, and finally the liquid can slide along the liquid outlet 342, the two identical through holes 361, and the connecting passage 352 into the compression chamber 353.

[0058] As the liquid continues to leak, the pressure in the compression chamber 353 continues to increase, thereby driving the compression piston 4 at the bottom to slide downward as a whole. At this time, the top rod 41 on the surface moves downward synchronously. The downward movement of the top rod 41 can drive the extrusion block 411. At this time, the extrusion block 411 squeezes the sealing plate 32 to move downward, and the sealing plate 32 can drive the second conical sealing ring 321 and the boss 322 to move downward.

[0059] When the compression piston 4 moves downward, the compression piston 4 drives the synchronization rod 42 at the bottom to move downward, and the synchronization bracket 421 at the bottom of the synchronization rod 42 drives the compression rod 422 to move downward, and the compression rod 422 squeezes the top plate 242 at the bottom. At this time, the top plate 242 rotates around the card shaft 241 and twists the torsion spring 243. The torsion spring 243 facilitates the house. After the top plate 242 rotates, the other end of the top plate 242 squeezes the positioning platform 21 to move upward, thereby pushing the first conical sealing ring 231 and the sealing gasket 211 to move upward synchronously.

[0060] Finally, the second conical sealing ring 321 and the boss 322 move downwards and the first conical sealing ring 231 and the sealing gasket 211 move upwards in coordination with each other, thereby increasing the pressure between the sealing gaskets and breaking away from the extrusion pressure originally set by the solenoid valve body 1, thereby reducing the possibility of liquid leakage from the sealing gaskets.

Claims

1. A solenoid valve with effectively enhanced sealing performance, comprising a solenoid valve body (1) and a partition (13) provided with a sealing opening (131) installed therein, characterized in that: A positioning ring (2) is installed on the partition (13), and a positioning platform (21) is installed on the positioning ring (2), and a sealing gasket (211) and a first conical sealing ring (231) are installed on the top and side wall of the positioning platform (21) respectively; The output end of the solenoid valve body (1) is provided with a sealing assembly, the sealing assembly comprising a connecting cover (3) and a sealing plate (32) sliding on a slide rail (331) provided inside the connecting cover, and a boss (322) and a second conical sealing ring (321) adapted to the sealing gasket (211) and the first conical sealing ring (231) are provided at the bottom of the sealing plate (32); The connection cover (3) is provided with a communication component for guiding the flow direction of the leaked liquid and a leakage locking component that is triggered to move by the leaked liquid; The leakage locking assembly comprises a compression piston (4), on which an extrusion block (411) is mounted that operates synchronously and corresponds to a sealing plate, and a compression rod (422) is mounted at the bottom of the compression piston (4), wherein the compression rod (422) corresponds to a top plate (242) that is rotatably mounted on the side wall of the positioning ring (2), and the end of the top plate is pressed against the lower edge of the positioning platform (21).

2. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: The electromagnetic valve body (1) is provided with quick connectors (11) at both ends, and an inspection door (12) is provided at the bottom of the electromagnetic valve body (1) via bolts. The partition (13) is used to separate two chambers connected to different quick connectors (11), and the sealing port (131) is used to connect the two chambers.

3. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: A pressure plate (22) is installed on the positioning ring (2), and the pressure plate (22) is slidably arranged in a sliding cavity (212) opened inside the positioning platform (21). A column (223) is installed on the pressure plate (22), and the top of the column (223) fits in the inner cavity of the positioning platform (21). A tension spring (221) is sleeved on the side wall of the column (223), and one end of the tension spring (221) is clamped on the side wall of the sliding cavity (212), and the other end of the tension spring (221) is clamped on the pressure plate (22).

4. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: A positioning block (222) is installed on the positioning ring (2), and the positioning block (222) overlaps the lower surface of the positioning platform (21). A baffle (23) is installed on the inner side wall of the positioning platform (21), and the baffle (23) is annular. The first conical sealing ring (231) is installed above the baffle (23).

5. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: The connecting cover (3) is provided with a mounting bracket (31), and the mounting bracket (31) is connected to the output end of the solenoid valve body (1). A slider (33) is provided on the side wall of the sealing plate (32), and the slider (33) is slidably arranged inside the slide rail (331). A limiting rod (332) is vertically installed inside the slide rail (331), and the limiting rod (332) movably passes through the slider (33). A limiting spring (333) is sleeved on the outer wall of the limiting rod (332), and one end of the limiting spring (333) is clamped on the side wall of the slider (33), and the other end of the limiting spring (333) is clamped on the inner wall of the slide rail (331).

6. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: A sealing cover (34) is installed at the bottom of the connecting cover (3), the inner diameter of the sealing cover (34) is adapted to the outer diameter of the positioning platform (21), a guide slope (341) is installed at the top of the sealing cover (34), the sealing plate (32) covers the guide slope (341), a liquid outlet (342) is installed at the lowest point of the guide slope (341), the bottom of the liquid outlet (342) is communicated with a connecting cavity (35) installed inside the connecting cover (3), and a connecting passage (352) is installed on the connecting cavity (35), the end of the connecting passage (352) is communicated with a compression cavity (353) opened on the side wall of the connecting cover (3), and the compression cavity (353) is placed above the compression piston (4), and a connecting component is connected to the inside of the connecting cavity (35).

7. The solenoid valve with effectively enhanced sealing performance according to claim 6, characterized in that: The connecting component includes a piston column (36), which is slidably arranged in the connecting cavity (35). Two through holes (361) that are connected to each other are opened on the piston column (36), and the two through holes (361) correspond to the connecting passage (352) and the liquid outlet (342) in an alternating manner. A return spring (365) is installed between the piston column (36) and the inner wall of the connecting cavity (35). The compression direction of the return spring (365) and the moving direction of the piston column (36) are located on the same straight line. A retaining ring (351) is installed at the inlet of the connecting cavity (35), and the retaining ring (351) is in contact with the piston column (36).

8. The solenoid valve with effectively enhanced sealing performance according to claim 7, characterized in that: The side wall of the piston column (36) is installed with a protruding rod (362), and the protruding rod (362) movably penetrates the side wall of the connecting cover (3). The side wall of the partition (13) is installed with a mounting cover (364) adapted to the outer diameter of the connecting cover (3), and the mounting cover (364) and the partition (13) are connected by bolts. A conical plate (363) is installed on the top of the mounting cover (364), and the conical plate (363) and the end of the protruding rod (362) are adapted to each other, and the end of the protruding rod (362) is chamfered.

9. The solenoid valve with effectively enhanced sealing performance according to claim 6, characterized in that: A push rod (41) is installed on the top of the compression piston (4), and the push rod (41) movably passes through the connecting cover (3). An extrusion block (411) is installed on the top of the push rod (41). A positioning spring (412) is sleeved on the push rod (41). One end of the positioning spring (412) is clamped on the inner wall of the compression chamber (353), and the other end of the positioning spring (412) is clamped on the compression piston (4). A synchronization rod (42) is installed on the bottom of the compression piston (4), and a synchronization bracket (421) is installed on the synchronization rod (42), and a pressure rod (422) is installed at the end of the synchronization bracket (421).

10. The solenoid valve with effectively enhanced sealing performance according to claim 1, characterized in that: A connecting seat (24) is installed on the side wall of the positioning ring (2), a clamping shaft (241) is installed on the connecting seat (24), and a top plate (242) is installed on the clamping shaft (241), the top plate (242) is in an inclined state, and a torsion spring (243) is sleeved on the clamping shaft (241), one end of the torsion spring (243) is clamped on the connecting seat (24), and the other end is clamped on the top plate (242).

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