Electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve which comprises a valve body, a plastic conduction body used for fluid conduction and a connecting body used for connecting the valve body and the plastic conduction body, and an electromagnetic coil, a blocking iron column used for blocking circulation of the plastic conduction body and a fixed magnet used for magnetically attracting the blocking iron column are arranged in the valve body. The electromagnetic coil is wound on the fixed magnet, the blocking iron column is sleeved with a reset spring used for driving the blocking iron column to reset, a worker electrifies the electromagnetic coil, so that the fixed magnet is magnetized, the blocking iron column is attracted in the direction close to the fixed magnet, and then fluid in the plastic conduction body is conducted; when the electromagnetic coil is powered off, the reset spring can drive the blocking iron column to conduct reset operation, the blocking iron column can block the plastic conduction body again, compared with an electromagnetic valve in the related technology, the plastic conduction body is made of plastic, the overall weight is reduced, and meanwhile the production cost is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of solenoid valves, and in particular to a solenoid valve. Background Art

[0002] A solenoid valve is an automated control device that uses electromagnetic force to control parameters such as fluid flow direction, flow rate, and pressure. The current solenoid valve structure is usually divided into a valve body, a buffer body, a plastic conductor, and a charging rod. The buffer body and the plastic conductor are both made of copper. The buffer body and the plastic conductor are assembled together through threads. The valve body is connected to the buffer body through a nut, and the charging rod is set on the valve body.

[0003] However, in the actual production process, the production cost of the buffer body and the plastic conductor made of copper material is relatively high, which is not conducive to practical use and there is room for improvement. Utility Model Content

[0004] In order to save costs, the present application provides a solenoid valve.

[0005] The present application provides a solenoid valve, which adopts the following technical solution:

[0006] A solenoid valve includes a valve body, a plastic conductor for fluid conduction, and a connector for connecting the valve body and the plastic conductor. An electromagnetic coil, a blocking iron column for blocking the flow of the plastic conductor, and a fixed magnet for magnetically attracting the blocking iron column are arranged inside the valve body. The electromagnetic coil is wound around the fixed magnet, and a reset spring is sleeved on the blocking iron column to drive the blocking iron column to reset.

[0007] By adopting the above technical solution, the staff energizes the electromagnetic coil to magnetize the fixed magnet, thereby attracting the blocking iron column in the direction close to the fixed magnet, thereby making the fluid in the plastic conductor conductive; and by utilizing the setting of the connecting body, the connection between the valve body and the plastic conductor is realized. When the electromagnetic coil is powered off, the reset spring will drive the blocking iron column to reset, and the blocking iron column will re-seal the plastic conductor. At this time, the fluid in the plastic conductor is not conductive; compared with the solenoid valve in the prior art, the plastic conductor in the present application is made of plastic material, which reduces the overall weight while greatly reducing the production cost.

[0008] Preferably, the connecting body includes a connecting pad and a protective shell sleeve, the connecting pad is fixedly connected to the fixed magnet, and the side of the connecting pad facing away from the fixed magnet is arranged on the plastic conductor, the protective shell sleeve is arranged on the connecting pad, and the side of the protective shell sleeve facing away from the connecting pad forms an abutment fit with the valve body.

[0009] By adopting the above technical solution, a stable connection between the valve body and the plastic conductive body is achieved by using the setting of the connecting pad and the protective shell sleeve; the protective shell sleeve is set on the connecting pad, and the protective shell sleeve can protect the connecting pad while ensuring a complete and beautiful appearance.

[0010] Preferably, the plastic conductive body is provided with a weight-reducing groove for reducing the weight of the plastic conductive body.

[0011] By adopting the above technical solution and utilizing the arrangement of the weight-reducing grooves, the weight of the plastic conductive body is further reduced, while also saving costs.

[0012] Preferably, the plastic conductor includes a conducting part and a buffer part, and the conducting part and the buffer part are integrally formed. The conducting part is arranged on both sides of the buffer part, and a buffer block for limiting the flow rate of the fluid is provided on the buffer part. The interior of the buffer block is connected with the conducting part near the output end, and a sealing port is provided on the buffer block, and the end of the sealing iron column away from the fixed magnet forms an abutment fit with the side of the buffer block near the sealing port.

[0013] By adopting the above technical solution and utilizing the setting of the buffer block, the buffer block can limit the flow rate of the fluid, reduce the impact of the fluid on the inside of the plastic conductor, thereby improving the service life of the plastic conductor; and the blocking iron column is used to abut and block the blocking port of the buffer block, and at the same time the return spring provides a certain elastic force to the buffer block, so that the blocking iron column can be tightly and firmly abutted against the blocking port of the buffer block, thereby controlling the flow of the fluid by controlling the lifting and lowering of the blocking iron column.

[0014] Preferably, a protective steel sleeve is embedded inside the conducting part to improve the structural strength of the conducting part.

[0015] By adopting the above technical solution and utilizing the provision of the protective steel sleeve, the structural strength of the conducting portion is enhanced.

[0016] Preferably, a filter cartridge for filtering impurities in the fluid is provided in the plastic conducting body, and the filter cartridge is plug-fitted with the protective steel sleeve.

[0017] By adopting the above technical solution and utilizing the arrangement of the filter cartridge, impurities are not easily introduced into the buffer portion, thereby reducing the possibility that external impurities enter the buffer portion and affect the normal operation of the plastic conductor.

[0018] Preferably, an abutting edge is provided at the bottom of the blocking iron column, one end of the reset spring forms an abutting fit with the fixed magnet, and the other end forms an abutting fit with the abutting edge.

[0019] By adopting the above technical solution, one end of the reset spring forms an abutment fit with the fixed magnet, and the other end forms an abutment fit with the abutment edge. When the solenoid valve is energized, the fixed magnet will absorb the blocking iron column, thereby compressing the reset spring on the blocking iron column. At this time, the plastic conductor is in a conductive state; when the solenoid valve is de-energized, the reset spring will drive the blocking iron column to perform a reset operation, thereby allowing the blocking iron column to re-block the plastic conductor. There is no need for the staff to manually perform a reset operation, thereby improving the convenience of operation.

[0020] Preferably, the valve body is provided with a charging rod for charging the electromagnetic coil.

[0021] By adopting the above technical solution and utilizing the setting of the charging rod, direct electrical connection between the external power supply and the electromagnetic coil and the fixed magnet is avoided, thereby reducing the possibility of damage to the electromagnetic coil and the fixed magnet.

[0022] Preferably, a sealing ring is provided between the connecting pad and the plastic conductive body for sealing the gap between the connecting pad and the plastic conductive body.

[0023] By adopting the above technical solution and utilizing the provision of the sealing ring, the sealing ring can increase the sealing degree between the connecting pad and the plastic conductive body, thereby reducing the possibility of fluid leakage from the gap between the connecting pad and the plastic conductive body.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The connection between the valve body and the plastic conduction body is achieved by setting a connector. Compared with the solenoid valve in the prior art, the plastic conduction body in this application is made of plastic material, which reduces the overall weight and greatly reduces the production cost;

[0026] 2. The weight-reducing grooves are used to further reduce the weight of the plastic conductor, while also saving costs.

[0027] 3. The provision of a protective steel sleeve enhances the structural strength of the conductive portion; at the same time, the provision of a filter cartridge prevents impurities from entering the buffer portion, thereby reducing the possibility of external impurities entering the buffer portion and affecting the normal operation of the plastic conductive body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an axonometric diagram mainly showing the overall structure in the embodiment of the present application;

[0029] Figure 2 This is a cross-sectional view that mainly reflects the connection relationship of the overall internal structure in the embodiment of the present application;

[0030] Figure 3It is a partial exploded view mainly showing the overall structure in the embodiment of the present application.

[0031] Figure numerals: 1. valve body; 11. electromagnetic coil; 12. sealing iron column; 121. reset spring; 122. magnetic attraction part; 1221. opening groove; 1222. snap ring; 1223. abutting edge; 123. sealing part; 13. fixed magnet; 131. matching groove; 14. plug-in hole; 15. fixing nut; 16. charging rod; 161. protective sleeve; 2. plastic conductor; 21. conducting part; 211. protective steel sleeve; 212. filter cartridge; 22. buffer part; 221. buffer block; 2211. sealing port; 222. sealing ring; 223. weight-reducing groove; 3. connector; 31. connecting pad; 32. protective shell; 321. avoidance hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0033] The embodiment of the present application discloses a solenoid valve.

[0034] Reference Figure 1 and Figure 2 A solenoid valve includes a valve body 1, a plastic conductor 2 and a connector 3. The valve body 1 is arranged above the plastic conductor 2. The plastic conductor 2 is used to control fluid conduction. The connector 3 is used to connect the valve body 1 and the plastic conductor 2. The valve body 1 is internally provided with an electromagnetic coil 11 for connecting to an external circuit, a blocking iron column 12 for blocking the flow of the plastic conductor 2, and a fixed magnet 13 for magnetically attracting the blocking iron column 12. The fixed magnet 13 is cylindrical. The electromagnetic coil 11 is wound on the fixed magnet 13. The blocking iron column 12 is sleeved with a reset spring 121 for driving the blocking iron column 12 to reset.

[0035] Reference Figure 1 and Figure 2 The staff energizes the electromagnetic coil 11 to magnetize the fixed magnet 13, thereby attracting the blocking iron column 12 towards the fixed magnet 13, thereby making the fluid in the plastic conductor 2 conductive; when the electromagnetic coil 11 is de-energized, the reset spring 121 will drive the blocking iron column 12 to reset, and the blocking iron column 12 will re-seal the plastic conductor 2. At this time, the fluid in the plastic conductor 2 is not conductive; and the plastic conductor 2 is made of plastic material, which reduces the overall weight while greatly reducing the production cost.

[0036] Reference Figure 2 and Figure 3A plug hole 14 is provided on the valve body 1 along its thickness direction, and the fixed magnet 13 is plugged into the plug hole 14. The electromagnetic coil 11 is installed inside the valve body 1. The top end of the fixed magnet 13 is threadedly connected with a fixing nut 15. The diameter of the fixing nut 15 is larger than the diameter of the plug hole 14, and the lower surface of the fixing nut 15 is in contact with the upper surface of the valve body 1, so that the fixed magnet 13 is fixed to the valve body 1 by the setting of the fixing nut 15.

[0037] Reference Figure 2 and Figure 3 The connecting body 3 includes a connecting pad 31 and a protective shell 32. The connecting pad 31 is hollow and fixedly connected to the fixed magnet 13. In this embodiment, the connecting pad 31 is welded to the fixed magnet 13. The side of the connecting pad 31 facing away from the fixed magnet 13 is arranged on the plastic conductive body 2. The protective shell 32 is provided with an avoidance hole 321 for avoiding the fixed magnet 13. The fixed magnet 13 passes through the avoidance hole 321 of the protective shell 32, and the protective shell 32 is covered on the connecting pad 31. The side of the protective shell 32 facing away from the connecting pad 31 forms an abutment fit with the valve body 1.

[0038] Reference Figure 2 and Figure 3 By utilizing the setting of the connecting pad 31 and the protective shell 32, the fixed magnet 13 is connected to the plastic conductor 2 through the connecting pad 31, and the protective shell 32 covering the connecting pad 31 forms an abutment fit with the valve body 1, thereby achieving a stable connection between the valve body 1 and the plastic conductor 2. At the same time, the protective shell 32 can protect the connecting pad 31 and ensure that the overall appearance is complete and beautiful.

[0039] Reference Figure 2 and Figure 3 A matching groove 131 with an opening facing downward is provided on the fixed magnet 13. The plastic conductive body 2 includes a conductive portion 21 and a buffer portion 22. In this embodiment, two conductive portions 21 are provided. Any conductive portion 21 and the buffer portion 22 are integrally formed. The two conductive portions 21 are respectively provided on both sides of the buffer portion 22. The connecting pad 31 is threadedly connected to the buffer portion 22 by bolts. The joint arrangement of the connecting pad 31 and the protective shell 32 enhances the connection strength between the valve body 1 and the plastic conductive body 2.

[0040] Reference Figure 2 and Figure 3A buffer block 221 for limiting the flow rate of the fluid is integrally formed on the buffer portion 22, and a sealing port 2211 is provided on the buffer block 221. The height of the buffer block 221 is lower than the height of the buffer portion 22, and the interior of the buffer block 221 is connected with the conductive portion 21 near the output end, so that the buffer block 221 can limit the flow rate of the fluid and reduce the impact of the fluid on the interior of the plastic conductive body 2, thereby improving the service life of the plastic conductive body 2; when the sealing port 2211 on the buffer block 221 is blocked, the communication between the buffer block 221 and the conductive portion 21 near the input end is cut off. At this time, the fluid can only fill the conductive portion 21 near the input end and a part of it enters the buffer portion 22.

[0041] Reference Figure 2 and Figure 3 The sealing iron column 12 includes a magnetic part 122 and a sealing part 123. The magnetic part 122 is provided with an opening groove 1221 with the opening facing downward. A snap ring 1222 is integrally formed in the opening groove 1221 of the magnetic part 122. The sealing part 123 is provided in the opening groove 1221 and the sealing part 123 and the snap ring 1222 form a snap fit.

[0042] Reference Figure 2 and Figure 3 The return spring 121 is sleeved on the magnetic attraction part 122 of the blocking iron column 12. The magnetic attraction part 122 is integrally formed with a contact edge 1223 near the opening of the opening groove 1221. One end of the return spring 121 forms an abutment fit with the lower surface of the fixed magnet 13, and the other end forms an abutment fit with the upper surface of the abutment edge 1223.

[0043] Reference Figure 2 and Figure 3 , by using the setting of the reset spring 121, when the solenoid valve is energized, the fixed magnet 13 will attract the blocking iron column 12 due to magnetization, thereby compressing the reset spring 121 on the blocking iron column 12, and the plastic conductor 2 is in a conductive state at this time; when the solenoid valve is de-energized, the magnetic attraction of the fixed magnet 13 will disappear, and the blocking iron column 12 will move downward under the influence of gravity. At this time, the reset spring 121 will drive the blocking iron column 12 to perform a reset operation, so that the blocking part 123 of the blocking iron column 12 re-blocks the buffer block 221, and there is no need for the staff to manually perform the reset operation, which improves the convenience of operation.

[0044] Reference Figure 2 and Figure 3The end of the magnetic part 122 away from the blocking part 123 forms an insert fit with the matching groove 131, and the end of the blocking part 123 away from the magnetic part 122 forms an abutment fit with the side of the buffer block 221 close to the blocking port 2211. The blocking iron column 12 is used to abut and block the blocking port 2211 of the buffer block 221. At the same time, the return spring 121 provides a certain elastic force to the buffer block 221, so that the blocking iron column 12 can be tightly and firmly abutted against the blocking port 2211 of the buffer block 221, so that the staff can control the circulation of the fluid by controlling the lifting and lowering of the blocking iron column 12. At the same time, the slowing down of the flow rate of the fluid helps to control the blocking part 123 to block the buffer block 221.

[0045] Reference Figure 2 A sealing ring 222 is provided between the connecting pad 31 and the buffer portion 22 of the plastic conductor 2 for sealing the gap between the connecting pad 31 and the buffer portion 22. The sealing ring 222 can increase the sealing degree between the connecting pad 31 and the buffer portion 22, thereby reducing the possibility of fluid leakage from the gap between the connecting pad 31 and the buffer portion 22.

[0046] Reference Figure 3 The buffer portion 22 of the plastic conductor 2 is provided with a weight-reducing groove 223 for reducing the weight of the plastic conductor 2. A plurality of weight-reducing grooves 223 are provided. In this embodiment, eight weight-reducing grooves 223 are provided. By providing the weight-reducing grooves 223, the weight of the plastic conductor 2 is further reduced, and the cost is also saved.

[0047] Reference Figure 2 A protective steel sleeve 211 is embedded in any conductive part 21 to improve the structural strength of the conductive part 21. The setting of the protective steel sleeve 211 enhances the structural strength of the conductive part 21; a filter cartridge 212 for filtering impurities in the fluid is plugged into the protective steel sleeve 211 near the fluid input end, and the opening of the filter cartridge 212 is set to face away from the buffer part 22. The setting of the filter cartridge 212 makes it difficult for impurities to enter the buffer part 22, thereby reducing the possibility of external impurities entering the buffer part 22 and affecting the normal operation of the plastic conductive body 2.

[0048] Reference Figure 2 and Figure 3 The return spring 121 is sleeved on the magnetic attraction part 122 of the blocking iron column 12. The magnetic attraction part 122 is integrally formed with a contact edge 1223 near the opening of the opening groove 1221. One end of the return spring 121 forms an abutment fit with the lower surface of the fixed magnet 13, and the other end forms an abutment fit with the upper surface of the abutment edge 1223.

[0049] Reference Figure 2 and Figure 3, by using the setting of the reset spring 121, when the solenoid valve is energized, the fixed magnet 13 will attract the blocking iron column 12 due to magnetization, thereby compressing the reset spring 121 on the blocking iron column 12, and the plastic conductor 2 is in a conductive state at this time; when the solenoid valve is de-energized, the magnetic attraction of the fixed magnet 13 will disappear, and the blocking iron column 12 will move downward under the influence of gravity. At this time, the reset spring 121 will drive the blocking iron column 12 to perform a reset operation, so that the blocking part 123 of the blocking iron column 12 re-blocks the buffer block 221, and there is no need for the staff to manually perform the reset operation, which improves the convenience of operation.

[0050] Reference Figure 1 and Figure 2 A charging rod 16 for charging the electromagnetic coil 11 is integrally formed on the valve body 1. By controlling the conduction of current on the charging rod 16, the flow state of the plastic conductor 2 is controlled. At the same time, the setting of the charging rod 16 avoids direct electrical connection between the external power supply and the electromagnetic coil 11 and the fixed magnet 13, reducing the possibility of damage to the electromagnetic coil 11 and the fixed magnet 13.

[0051] Reference Figure 1 The charging rod 16 is provided with a protective sleeve 161, which can protect the charging rod 16 when not in use, thereby reducing the possibility of damage to the charging rod 16 due to external collision when not in use.

[0052] The implementation principle of the embodiment of the present application is as follows: the plastic conductive body 2 in the present application is made of plastic material, which reduces the overall weight while greatly reducing the production cost; the weight reduction groove 223 on the plastic conductive body 2 is further reduced, while also saving costs; the protective steel sleeve 211 on the plastic conductive body 2 is provided to enhance the structural strength of the conductive part 21.

[0053] During actual operation, the staff first injects the fluid from the input end of the plastic conductor 2. When the fluid fills the conductive part 21 near the input end and a part of it enters the buffer part 22, the staff first removes the protective sleeve 161 from the charging rod 16, and then energizes the electromagnetic coil 11, so that the fixed magnet 13 in the electromagnetic coil 11 will attract the magnetic attraction part 122 of the blocking iron column 12 toward the direction close to the fixed magnet 13, and then the magnetic attraction part 122 drives the blocking part 123 to move toward the direction close to the fixed magnet 13. At this time, the reset spring 121 on the magnetic attraction part 122 is compressed and the fluid in the plastic conductor 2 is conductive, and the fluid can flow from one side of the plastic conductor 2 to the other side; when the electromagnetic coil 11 is powered off, the magnetism of the fixed magnet 13 disappears, and the reset spring 121 will drive the blocking iron column 12 to perform a reset operation, so that the blocking part 123 of the blocking iron column 12 re-blocks the buffer block 221. At this time, the fluid in the plastic conductor 2 cannot be conductive.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A solenoid valve, characterized in that: The invention comprises a valve body (1), a plastic conducting body (2) for fluid conduction, and a connecting body (3) for connecting the valve body (1) and the plastic conducting body (2); an electromagnetic coil (11), a blocking iron column (12) for blocking the flow of the plastic conducting body (2), and a fixed magnet (13) for magnetically attracting the blocking iron column (12); the electromagnetic coil (11) is wound around the fixed magnet (13); and a reset spring (121) is sleeved on the blocking iron column (12) for driving the blocking iron column (12) to reset.

2. The solenoid valve according to claim 1, characterized in that: The connecting body (3) comprises a connecting pad (31) and a protective shell (32); the connecting pad (31) is fixedly connected to the fixed magnet (13), and the side of the connecting pad (31) facing away from the fixed magnet (13) is arranged on the plastic conductive body (2); the protective shell (32) is covered on the connecting pad (31), and the side of the protective shell (32) facing away from the connecting pad (31) forms an abutment fit with the valve body (1).

3. The solenoid valve according to claim 1, characterized in that: The plastic conductive body (2) is provided with a weight-reducing groove (223) for reducing the weight of the plastic conductive body (2).

4. The solenoid valve according to claim 1, characterized in that: The plastic conductive body (2) comprises a conductive portion (21) and a buffer portion (22), wherein the conductive portion (21) and the buffer portion (22) are integrally formed, the conductive portion (21) is arranged on both sides of the buffer portion (22), a buffer block (221) for limiting the flow rate of the fluid is arranged on the buffer portion (222), the interior of the buffer block (221) is connected to the conductive portion (21) near the output end, and a blocking port (2211) is arranged on the buffer block (221), and an end of the blocking iron column (12) away from the fixed magnet (13) forms an abutment fit with a side of the buffer block (221) near the blocking port (2211).

5. The solenoid valve according to claim 4, characterized in that: A protective steel sleeve (211) is embedded in the conducting portion (21) to improve the structural strength of the conducting portion (21).

6. The solenoid valve according to claim 5, characterized in that: A filter cartridge (212) for filtering impurities in the fluid is provided in the plastic conducting body (2), and the filter cartridge (212) is plug-fitted to the protective steel sleeve (211).

7. The solenoid valve according to claim 1, characterized in that: The bottom of the blocking iron column (12) is provided with an abutting edge (1223), one end of the reset spring (121) forms an abutting fit with the fixed magnet (13), and the other end forms an abutting fit with the abutting edge (1223).

8. The solenoid valve according to claim 1, characterized in that: The valve body (1) is provided with a charging rod (16) for charging the electromagnetic coil (11).

9. The solenoid valve according to claim 2, characterized in that: A sealing ring (222) is provided between the connecting pad (31) and the plastic conductive body (2) for sealing the gap between the connecting pad (31) and the plastic conductive body (2).

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