Normally-open self-adaptive electromagnetic valve

Abstract

The invention relates to the technical field of valve equipment, and discloses a normally-open self-adaptive electromagnetic valve which comprises a fixed end and an electromagnetic coil component on the fixed end, an external main body is fixedly installed in the fixed end and is of a tubular structure, a movable shaft component is movably installed in the external main body, and the movable shaft component is of a tubular structure. The fixed end is arranged on the outer side of the outer body in a sleeving mode, and the movable shaft component comprises an upper connecting shaft, a middle connecting shaft, a bottom connecting shaft and a supporting connecting shaft. Through the action of the electromagnetic coil component, repulsive force can be formed on the magnetic disk, so that the magnetic disk achieves rising acting force and drives the upper connecting shaft to integrally rise, the elongation of the spring is in direct proportion to the pulling force through the characteristics of the spring, and the longer the pulling distance is, the stronger the achieved pulling force is; the height of the upper connecting shaft determines the tensile strength of the spring to the blocking ball, so that the device can adjust the water flow by changing the magnetic force of the electromagnetic coil component.

Description

Technical Field

[0001] This invention relates to the field of valve equipment technology, specifically to a normally open adaptive solenoid valve. Background Technology

[0002] In industrial hydraulic systems, hydraulic circuits of construction machinery, and supporting equipment for high-pressure oil pumps, valves and other connecting components can be used to connect the high-pressure oil pump to the downstream oil-using components. Since the connecting components are core basic components, their performance directly affects the stability, safety, and service life of the entire hydraulic system.

[0003] However, existing solenoid valves typically lack the corresponding functions for controlling water flow and adjusting the direction of water flow. In addition, water carries impurities, which will adhere to the inner wall of the valve body the longer it is used. Prolonged use will affect the use of the device. Summary of the Invention

[0004] This invention provides a normally open adaptive solenoid valve that has the beneficial effect of regulating water pressure. It solves the problem mentioned in the background art that existing solenoid valves usually lack corresponding functions in controlling water flow and regulating water flow direction. At the same time, water carries impurities, which will adhere to the inner wall of the valve body the longer it is used, and long-term use will affect the use of the device.

[0005] The present invention provides the following technical solution: a normally open adaptive solenoid valve, comprising a fixed end and an electromagnetic coil component on the fixed end, wherein an external body is fixedly installed inside the fixed end, the external body is a tubular structure, and a movable shaft component is movably installed inside the external body;

[0006] The fixed end is sleeved on the outside of the outer body;

[0007] The movable shaft component includes an upper connecting shaft, a middle connecting shaft, a bottom connecting shaft, and a support connecting shaft. The upper connecting shaft is movably connected to the top of the middle connecting shaft, the bottom connecting shaft is provided at the bottom of the middle connecting shaft, and the support connecting shaft is provided at the bottom of the bottom connecting shaft.

[0008] A pressure component is connected to the lower end of the support connecting shaft. The pressure component includes a ball stopper and a flat bearing. The ball stopper is fixedly installed at the lower end of the support connecting shaft, and the flat bearing is installed on the upper surface of the ball stopper. The flat bearing is used to provide rotational isolation between the ball stopper and the support connecting shaft.

[0009] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the movable shaft component further includes a spring, a first sealing ring and a second sealing ring, the spring is installed inside the middle connecting shaft, the first sealing ring is fixedly installed on the outside of the middle connecting shaft, and the second sealing ring is installed on the outside of the upper connecting shaft.

[0010] The first sealing ring is used to provide a sealing condition between the central connecting shaft and the outer body;

[0011] The spring is used to provide an upward force on the central connecting shaft.

[0012] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, wherein: the external body includes a main valve body, a first inlet end, a second inlet end and a third sealing ring, the fixed end is used to be sleeved on the outside of the main valve body, the outside of the main valve body is provided with an upper ring groove and a lower ring groove, the first inlet end is symmetrically provided inside the upper ring groove, and the second inlet end is provided inside the lower ring groove;

[0013] A third sealing ring is also installed on the outside of the main valve body.

[0014] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the external body further includes a flow groove, an inner flow groove, and an outer flow groove. The main valve body is provided with a flow groove inside, and the lower end of the flow groove is provided with an inner flow groove located inside the main valve body.

[0015] The outer side of the inner flow groove has an outer flow groove arranged in a ring, and a filter screen is installed at the lower end of the main valve body.

[0016] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the outer side of the main valve body is further provided with an outer ring groove, and a fixing collar is sleeved on the outer side of the outer ring groove.

[0017] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, an electromagnetic coil component is installed on the outer side of the fixed collar, and an external port is fixedly installed on one side of the upper end of the fixed collar.

[0018] A disk is fixedly installed at the top of the upper connecting shaft, and the upper connecting shaft is slidably connected to the top of the main valve body.

[0019] The extreme drop position of the ball is below the inner flow channel.

[0020] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, a power component is installed on the outer side of the bottom connecting shaft. The power component includes a support bearing, a spiral blade, a lower support ring, and an upper support ring. The support bearing is fixedly installed on the outer side of the bottom connecting shaft. The spiral blades are arranged in a ring array on the outer side of the support bearing. The lower support ring is provided at the top of the spiral blade. The upper support ring is fixedly installed at the top of the lower support ring.

[0021] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the upper end of the lower support ring is arrayed with cleaning components, the cleaning components including scrapers, springs and support rods, support rods are arranged between the lower support ring and the upper support ring, scrapers are symmetrically arranged on both sides of the support rods, and springs located on the outer surfaces of the lower support ring and the upper support ring are fixedly installed at the upper and lower ends of the scrapers.

[0022] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the spring is used to provide elastic support for the scraper, and a connecting shaft is installed at one end of the scraper, the connecting shaft being used to provide rotational force for the spring.

[0023] As an optional embodiment of the normally open adaptive solenoid valve of the present invention, the cleaning component further includes a friction roller and a damping shaft, the friction roller is installed inside the support rod, and the damping shaft is fixedly installed at both ends of the friction roller;

[0024] The scraper blade is used to fit against the inner wall of the main valve body, and the scraper blade is provided with a scraping edge on its side, which is used to provide a scraping action of the scraper blade against the inner wall of the main valve body.

[0025] The present invention has the following beneficial effects:

[0026] 1. This normally open adaptive solenoid valve, through the action of the solenoid coil component, can generate a repulsive force on the disk, thereby causing the disk to rise and pulling the upper connecting shaft to rise as a whole, pulling the spring. Due to the characteristics of the spring, the elongation of the spring is directly proportional to the pulling force. The longer the pulling distance, the stronger the pulling force. Therefore, the height of the upper connecting shaft determines the strength of the spring's pulling force on the stop ball, thereby changing the effect of the stop ball on the water pressure. Thus, the device can change the effect of the stop ball on the water flow by changing the magnetic force of the solenoid coil component, thereby achieving the function of regulating the water flow.

[0027] 2. This normally open adaptive solenoid valve uses a combination of scraper and friction roller. The rotational force of the spiral blade drives the lower and upper support rings to rotate, which in turn drives the scraper and friction roller to rotate. The scraper scrapes the inner wall of the main valve body, effectively removing impurities attached to the inner wall of the main valve body. The friction roller, on the other hand, performs friction, further enhancing the removal of impurities. This achieves a cleaning effect on the inside of the main valve body, making it less likely for impurities to accumulate inside the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of the electromagnetic coil component of the present invention.

[0030] Figure 3 This is a schematic diagram of the internal structure of the main valve body of the present invention.

[0031] Figure 4 This is a schematic diagram of the internal side view of the main valve body of the present invention.

[0032] Figure 5 This is a schematic diagram of the cleaning component structure of the present invention.

[0033] Figure 6 For the present invention Figure 5 A partial structural diagram at point A.

[0034] In the diagram: 1. Fixed end;

[0035] 2. Movable shaft assembly; 21. Upper connecting shaft; 22. Middle connecting shaft; 23. Bottom connecting shaft; 24. Support connecting shaft; 25. Spring; 26. First sealing ring; 27. Second sealing ring;

[0036] 3. External body; 31. Main valve body; 32. First liquid inlet end; 33. Second liquid inlet end; 34. Third sealing ring; 35. Outer ring groove; 36. Flow groove; 37. Inner flow groove; 38. Outer flow groove; 39. Filter screen;

[0037] 4. Pressure components; 41. Ball stopper; 42. Flat pressure bearing;

[0038] 5. Power components; 51. Support bearing; 52. Spiral blade; 53. Lower support ring; 54. Upper support ring;

[0039] 6. Cleaning components; 61. Scraper blade; 62. Spring; 63. Connecting shaft; 64. Friction roller; 65. Damping shaft; 66. Support rod;

[0040] 7. Disk; 8. Electromagnetic coil component; 9. External port; 11. Retaining collar. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Please see Figures 1-6 One type of normally open adaptive solenoid valve includes a fixed end 1 and an electromagnetic coil component 8 on the fixed end 1. An external body 3 is fixedly installed inside the fixed end 1. The external body 3 is a tubular structure. A movable shaft component 2 is movably installed inside the external body 3.

[0044] The fixed end 1 is fitted onto the outside of the outer body 3;

[0045] The movable shaft component 2 includes an upper connecting shaft 21, a middle connecting shaft 22, a bottom connecting shaft 23, and a support connecting shaft 24. The upper connecting shaft 21 is movably connected to the top of the middle connecting shaft 22, the bottom connecting shaft 23 is provided at the bottom of the middle connecting shaft 22, and the support connecting shaft 24 is provided at the bottom of the bottom connecting shaft 23.

[0046] A pressure component 4 is connected to the lower end of the support connecting shaft 24. The pressure component 4 includes a ball plug 41 and a flat bearing 42. The ball plug 41 is fixedly installed at the lower end of the support connecting shaft 24. The flat bearing 42 is installed on the upper surface of the ball plug 41. The flat bearing 42 is used to provide rotational isolation between the ball plug 41 and the support connecting shaft 24.

[0047] The movable shaft component 2 also includes a spring 25, a first sealing ring 26 and a second sealing ring 27. The spring 25 is installed inside the middle connecting shaft 22, the first sealing ring 26 is fixedly installed on the outside of the middle connecting shaft 22, and the second sealing ring 27 is installed on the outside of the upper connecting shaft 21.

[0048] The first sealing ring 26 is used to provide a sealing condition between the central connecting shaft 22 and the outer body 3;

[0049] Spring 25 is used to provide an upward force on the central connecting shaft 22;

[0050] The outer body 3 includes a main valve body 31, a first liquid inlet end 32, a second liquid inlet end 33 and a third sealing ring 34. The fixed end 1 is used to be sleeved on the outside of the main valve body 31. The outer side of the main valve body 31 is provided with an upper ring groove and a lower ring groove. The first liquid inlet end 32 is symmetrically provided inside the upper ring groove, and the second liquid inlet end 33 is provided inside the lower ring groove.

[0051] A third sealing ring 34 is also installed on the outside of the main valve body 31;

[0052] The external body 3 also includes a flow groove 36, an inner flow groove 37 and an outer flow groove 38. The main valve body 31 is provided with a flow groove 36 inside, and the lower end of the flow groove 36 is provided with an inner flow groove 37 located inside the main valve body 31.

[0053] The outer side of the inner flow groove 37 has an outer flow groove 38 arranged in a ring, and a filter screen 39 is installed at the lower end of the main valve body 31.

[0054] The outer side of the main valve body 31 is also provided with an outer ring groove 35, and a fixing collar 11 is sleeved on the outer side of the outer ring groove 35.

[0055] An electromagnetic coil component 8 is installed on the outside of the fixing collar 11, and an external port 9 is fixedly installed on one side of the upper end of the fixing collar 11.

[0056] A disk 7 is fixedly installed at the top of the upper connecting shaft 21, and the upper connecting shaft 21 is slidably connected to the top of the main valve body 31.

[0057] The extreme drop position of the ball 41 is below the inner channel 37.

[0058] In use, the device is placed inside a specific pipe and sealed with the pipe by the third sealing ring 34. At this time, the water flows into the main valve body 31 through the first inlet end 32 and the second inlet end 33. As the liquid flows into the main valve body 31, the pressure inside the main valve body 31 increases. After the pressure inside the main valve body 31 increases, it will act on the plug ball 41. The plug ball 41 is an integral structure with the bottom connecting shaft 23 and the middle connecting shaft 22. When the water pressure acts on the plug ball 41, it will pull the middle connecting shaft 22 and the bottom connecting shaft 23 to fall as a whole, so that the middle connecting shaft 22 and the bottom connecting shaft 23 slide up and down inside the main valve body 31 and achieve the sealing condition through the first sealing ring 26. At this time, the elastic effect of the spring 25 is used to ensure the reset function of the plug ball 41 when sealing and to increase the overall pressure resistance of the plug ball 41, so that the plug ball 41 can change the water flow size according to the water pressure.

[0059] Through the action of the electromagnetic coil component 8, a repulsive force is generated on the disk 7, thereby causing the disk 7 to rise and pulling the upper connecting shaft 21 to rise as a whole, pulling the spring 25. Due to the characteristics of the spring 25, the elongation of the spring 25 is proportional to the pulling force. The longer the pulling distance, the stronger the pulling force. Therefore, the height of the upper connecting shaft 21 determines the pulling force of the spring 25 on the ball stop 41, thereby changing the influence of the ball stop 41 on the water pressure. Thus, the device can change the influence of the ball stop 41 on the water flow by changing the magnetic force of the electromagnetic coil component 8, thereby realizing the function of regulating the water flow.

[0060] Example 2

[0061] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1-6 A power component 5 is installed on the outside of the bottom connecting shaft 23. The power component 5 includes a support bearing 51, a spiral blade 52, a lower support ring 53 and an upper support ring 54. The support bearing 51 is fixedly installed on the outside of the bottom connecting shaft 23. The spiral blade 52 is arranged in a ring array on the outside of the support bearing 51. The lower support ring 53 is provided at the top of the spiral blade 52. The upper support ring 54 is fixedly installed at the top of the lower support ring 53.

[0062] The upper end of the lower support ring 53 is arrayed with cleaning components 6. The cleaning components 6 include scraper 61, spring 62 and support rod 66. The support rod 66 is arranged between the lower support ring 53 and the upper support ring 54. Scraper 61 is symmetrically arranged on both sides of the support rod 66. Spring 62 located on the outer surface of the lower support ring 53 and the upper support ring 54 are fixedly installed at the upper and lower ends of the scraper 61.

[0063] The spring 62 is used to provide elastic support for the scraper 61. One end of the scraper 61 is equipped with a connecting shaft 63, which is used to provide the rotational force of the spring 62.

[0064] The cleaning component 6 also includes a friction roller 64 and a damping shaft 65. The friction roller 64 is installed inside the support rod 66, and the damping shaft 65 is fixedly installed at both ends of the friction roller 64.

[0065] The scraper 61 is used to fit against the inner wall of the main valve body 31, and the scraper 61 has a scraping edge on its side, which is used to provide the scraper 61 with a scraping action against the inner wall of the main valve body 31.

[0066] When water flows through the inside of the first inlet end 32, it affects the spiral blade 52 on the outside of the bottom connecting shaft 23, causing the spiral blade 52 to rotate. As the spiral blade 52 rotates, it also drives the lower support ring 53 and the upper support ring 54 to rotate. At the same time, the scraper 61 comes into contact with the inner wall of the main valve body 31. The end of the scraper 61 is provided with a shovel, and when it comes into contact with the inner wall of the main valve body 31, it performs a scraping operation to remove impurities from the inner wall of the main valve body 31, thereby achieving the cleaning effect of the device.

[0067] The damping shaft 65 provides a damping rotation effect for the friction roller 64, so that when the friction roller 64 contacts the inner wall of the main valve body 31, its rotation speed will be slower than the rotation speed of the lower support ring 53 and the upper support ring 54, thus forming a speed difference and creating a grinding effect on the inner wall of the main valve body 31.

[0068] By combining the scraper 61 and the friction roller 64, the rotational force of the spiral blade 52 drives the lower support ring 53 and the upper support ring 54 to rotate, which in turn drives the scraper 61 and the friction roller 64 to rotate. The scraper 61 scrapes the inner wall of the main valve body 31, effectively removing impurities attached to the inner wall of the main valve body 31. The friction roller 64 performs friction, further enhancing the removal of impurities, thereby achieving a cleaning effect on the inside of the main valve body 31 and making it less likely for impurities to accumulate inside the device.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0070] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A normally open self-adapting electromagnetic valve comprising a fixed end (1) and an electromagnetic coil component (8) on the fixed end (1), characterized in that: The inside of the fixed end (1) is fixedly provided with an external main body (3), the external main body (3) is a tubular structure, and the inside of the external main body (3) is movably provided with a movable shaft component (2); The fixed end (1) is sleeved on the outside of the external main body (3); The movable shaft component (2) comprises an upper connecting shaft (21), a middle connecting shaft (22), a bottom connecting shaft (23) and a supporting connecting shaft (24), the top end of the middle connecting shaft (22) is movably connected with the upper connecting shaft (21), the low end of the middle connecting shaft (22) is provided with the bottom connecting shaft (23), and the low end of the bottom connecting shaft (23) is provided with the supporting connecting shaft (24); The low end of the supporting connecting shaft (24) is connected with a pressure component (4), the pressure component (4) comprises a plug ball (41) and a flat pressure bearing (42), the low end of the supporting connecting shaft (24) is fixedly provided with the plug ball (41), the upper surface of the plug ball (41) is provided with the flat pressure bearing (42), and the flat pressure bearing (42) is used for providing the rotation isolation condition of the plug ball (41) and the supporting connecting shaft (24).

2. The normally open self-adapting solenoid valve according to claim 1, characterized in that: The movable shaft component (2) further comprises a spring (25), a first sealing ring (26) and a second sealing ring (27), the inside of the middle connecting shaft (22) is provided with the spring (25), the outside of the middle connecting shaft (22) is fixedly provided with the first sealing ring (26), and the outside of the upper connecting shaft (21) is provided with the second sealing ring (27); The first sealing ring (26) is used for providing the sealing condition of the middle connecting shaft (22) and the external main body (3); The spring (25) is used for providing the upward force of the middle connecting shaft (22).

3. The normally open adaptive solenoid valve according to claim 2, characterized in that: The external main body (3) comprises a main valve body (31), a first liquid inlet end (32), a second liquid inlet end (33) and a third sealing ring (34), the fixed end (1) is used for being sleeved on the outside of the main valve body (31), the outside of the main valve body (31) is provided with an upper ring groove and a lower ring groove, the inside of the upper ring groove is symmetrically provided with the first liquid inlet end (32), and the inside of the lower ring groove is provided with the second liquid inlet end (33); The outside of the main valve body (31) is further provided with the third sealing ring (34).

4. The normally open adaptive solenoid valve according to claim 3, characterized by: The external main body (3) further comprises a flow passage groove (36), a flow passage inner groove (37) and a flow passage outer groove (38), the inside of the main valve body (31) is provided with the flow passage groove (36), the lower end of the flow passage groove (36) is provided with the flow passage inner groove (37) located in the inside of the main valve body (31); The outside of the flow passage inner groove (37) is annularly arranged with the flow passage outer groove (38), and the low end of the main valve body (31) is provided with a filter screen (39).

5. The normally open adaptive solenoid valve according to claim 4, characterized in that: The outside of the main valve body (31) is further provided with a placing outer ring groove (35), and the outside of the placing outer ring groove (35) is sleeved with a fixed sleeve ring (11).

6. The normally open adaptive solenoid valve according to claim 5, characterized in that: The outside of the fixed sleeve ring (11) is provided with an electromagnetic coil component (8), and one side of the upper end of the fixed sleeve ring (11) is fixedly provided with an external port (9). The top end of the upper connecting shaft (21) is fixedly installed with a magnetic disc (7), and the upper connecting shaft (21) is in up-down sliding connection with the top end of the main valve body (31). The limit falling position of the plug ball (41) is below the flow circulation inner groove (37).

7. The normally open adaptive solenoid valve according to claim 6, characterized in that: The outer side of the bottom connecting shaft (23) is installed with a power component (5), the power component (5) comprises a support bearing (51), a spiral blade (52), a lower support ring (53) and an upper support ring (54), the outer side of the bottom connecting shaft (23) is fixedly installed with the support bearing (51), the outer side of the support bearing (51) is annularly arrayed with the spiral blade (52), the top end of the spiral blade (52) is provided with the lower support ring (53), and the top end of the lower support ring (53) is fixedly installed with the upper support ring (54).

8. The normally open adaptive solenoid valve according to claim 7, characterized by: The upper end of the lower support ring (53) is arrayed with a cleaning component (6), the cleaning component (6) comprises a scraper (61), an elastic sheet (62) and a support rod (66), the support rod (66) is arranged between the lower support ring (53) and the upper support ring (54), the two sides of the support rod (66) are symmetrically provided with the scraper (61), and the scraper (61) is fixedly installed with the elastic sheet (62) on the outer surfaces of the lower support ring (53) and the upper support ring (54).

9. The normally open adaptive solenoid valve according to claim 8, characterized in that: The elastic sheet (62) is used for providing elastic support effect on the scraper (61), one end of the scraper (61) is installed with a connecting rotating shaft (63), and the connecting rotating shaft (63) is used for providing rotating force of the elastic sheet (62).

10. The normally open adaptive solenoid valve according to claim 9, characterized in that: The cleaning component (6) further comprises a friction roller (64) and a damping rotating shaft (65), the inside of the support rod (66) is installed with the friction roller (64), and the two ends of the friction roller (64) are fixedly installed with the damping rotating shaft (65). The scraper (61) is used for being attached to the inner wall of the main valve body (31), and the side edge of the scraper (61) is provided with a spade, and the spade is used for providing scraping effect of the scraper (61) on the inner wall of the main valve body (31).

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