Electromagnetic valve

Abstract

The invention relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve which comprises a supporting assembly and a driving mechanism sliding on the supporting assembly, and at least one liquid inlet and at least one liquid outlet are formed in one side of the supporting assembly. The liquid inlet and / or the liquid outlet are / is driven by the driving mechanism to be blocked or opened, a sealing mechanism is arranged between the driving mechanism and the supporting assembly, and when the liquid inlet and / or the liquid outlet are / is blocked, the liquid inlet and / or the liquid outlet in the supporting assembly are / is blocked and sealed through the sealing mechanism. The electromagnetic valve has the advantages that the sealing performance of the electromagnetic valve is enhanced, and the service life of the electromagnetic valve is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and more particularly to a solenoid valve. Background Art

[0002] Solenoid valves are electromagnetically controlled industrial devices, essential automation components for controlling fluids. They are classified as actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow, speed, and other parameters of media. Solenoid valves can be combined with various circuits to achieve desired control, ensuring both precision and flexibility. There are many different types of solenoid valves, each serving different functions within a control system. The most commonly used are check valves, safety valves, directional control valves, and speed control valves.

[0003] During the control and shutoff process of the solenoid valve, conventional solenoid valves use a straight-through method to block the inlet and outlet during the shutoff process.

[0004] For example, Patent No. 201780030742.0, entitled "Solenoid Valve," discloses a method for alleviating external forces such as compression acting on a valve core when the valve core is seated on a valve seat, thereby suppressing wear and irreversible deformation of the valve core caused by repeated external forces acting on the valve core, thereby suppressing changes in the flow rate of a fluid flowing through the valve seat and the responsiveness of the solenoid valve as much as possible. The valve operating member comprises a valve support portion (support arm (45)) for supporting the valve core so that the valve core can move relative to the valve operating member in the axial direction. An elastic member is provided in the valve chamber for always applying force to the valve core toward the valve seat side in the axial direction, and for seating the valve core on the valve seat by the force applied. The valve support portion is provided with a valve engaging portion for engaging with an engaged portion of the valve core seated on the valve seat to separate the valve core from the valve seat. The valve engaging portion does not contact the valve core in the axial direction when the valve core is seated on the valve seat.

[0005] However, in the setting of this solenoid valve, sealing rings are usually used to further improve the sealing of the inlet and outlet during the interception process. However, long-term use, coupled with the corrosion of the sealing ring by the liquid, can easily lead to leakage of the inlet and outlet. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a solenoid valve, which has the advantages of strengthening the sealing performance of the solenoid valve and increasing the service life of the solenoid valve.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a solenoid valve, comprising a support assembly and a driving mechanism sliding on the support seat assembly, at least one liquid inlet and at least one liquid outlet being provided on one side of the support assembly, the driving mechanism driving the liquid inlet and / or liquid outlet to be sealed or opened, a sealing mechanism being provided between the driving mechanism and the support assembly, and when the liquid inlet and / or liquid outlet are blocked, the liquid inlet and / or liquid outlet on the support assembly are blocked and sealed by the sealing mechanism.

[0008] Preferably, the support seat assembly includes a support base and a mounting seat installed on the support base, the liquid inlet and the liquid outlet are respectively opened on the support base, a through hole is opened on the mounting seat, and the driving mechanism is inserted into the mounting seat through the through hole and abuts against the support base.

[0009] Preferably, the driving mechanism includes a push rod, a spring sleeved on the push rod, and a driving assembly that drives the push rod toward and away from the support assembly. While the driving assembly drives the push rod to squeeze the sealing mechanism, the sealing mechanism is used to seal the liquid inlet and / or liquid outlet.

[0010] Preferably, the sealing mechanism includes a blocking component provided on one side of the driving mechanism and a limiting path opened in the supporting component, the liquid inlet and the liquid outlet are both located in the limiting path, and the displacement of the blocking component is limited by the limiting path.

[0011] Preferably, the blocking assembly includes a connecting end connected to the driving mechanism and an abutment block circumferentially abutting against the inner side of the limiting path. The driving mechanism drives the abutment block through the connecting end to move along the limiting path to abut the support assembly.

[0012] Preferably, a guide edge is connected between the connecting end and the abutment block, and the guide edge is conically arranged to form a cavity path within the limiting path. When the abutment block moves along the limiting path to abut the support assembly, the liquid is squeezed out through the cavity path.

[0013] Preferably, a guide column is provided on the side of the abutment block away from the connection end, and a limiting groove for the guide column to slide is provided on the side of the support assembly close to the driving mechanism.

[0014] Preferably, the blocking component is configured in a flipper shape, and the connecting end, the guide edge and the abutment block are integrally formed.

[0015] Preferably, a connecting mechanism for achieving a detachable connection is provided between the sealing mechanism and the driving mechanism.

[0016] Preferably, the connecting mechanism includes a connecting groove provided at the end of the driving mechanism, a convex edge opened at the end of the sealing mechanism, and a sleeve provided on the end of the sealing mechanism. The sleeve is provided with a plurality of claws near one end of the driving mechanism, and a connecting hole is provided at one end of the sleeve near the sealing mechanism. The convex edge is inserted into the connecting hole, and a limiting abutment is formed by the abutting edge of the inner wall of the connecting hole. The plurality of claws surround the connecting groove to form a clamp.

[0017] To sum up, the present invention has the beneficial effects: the support assembly provides support installation conditions, and the driving mechanism drives the liquid inlet and / or liquid outlet to be blocked or opened. During the blocking process, the sealing mechanism provided between the driving mechanism and the support assembly is used to block and seal the liquid inlet and / or liquid outlet, thereby strengthening the sealing of the solenoid valve. At the same time, the sealing mechanism further weakens the corrosive effect of the liquid on the sealing ring, thereby increasing the service life of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is an exploded view of the interior of an embodiment of the present invention; Figure 3 is a cross-sectional view of the entire embodiment of the present invention; Figure 4 It is a partial structural diagram of the sealing mechanism of an embodiment of the present invention.

[0019] Figure numerals: 1. Support assembly; 11. Liquid inlet; 12. Liquid outlet; 13. Support base; 14. Mounting seat; 15. Through hole; 2. Driving mechanism; 21. Push rod; 22. Spring; 23. Driving assembly; 31. Blocking assembly; 311. Connecting end; 312. Abutment block; 313. Guide edge; 314. Cavity path; 315. Guide column; 316. Limiting groove; 32. Limiting path; 4. Connecting mechanism; 41. Connecting groove; 42. Protruding edge; 43. Shell; 44. Clamping jaw; 45. Connecting hole; 46. Abutment edge. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when a component is referred to as being “fixed to” or “disposed on” another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being “connected to” another component, it can be directly or indirectly connected to the other component.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] A solenoid valve, see Figures 1-4 , including a support assembly 1 and a driving mechanism 2 sliding on the support seat assembly, at least one liquid inlet 11 and at least one liquid outlet 12 are provided on one side of the support assembly 1, and the liquid inlet 11 and / or the liquid outlet 12 are driven by the driving mechanism 2 to seal or open, and a sealing mechanism is provided between the driving mechanism 2 and the support assembly 1. When the liquid inlet 11 and / or the liquid outlet 12 are blocked, the liquid inlet 11 and / or the liquid outlet 12 on the support assembly 1 are blocked and sealed by the sealing mechanism.

[0025] The support assembly 1 provides support and installation conditions, and is driven by the driving mechanism 2 to block or open the liquid inlet 11 and / or the liquid outlet 12. During the blocking process, the sealing mechanism provided between the driving mechanism 2 and the supporting assembly 1 is used to block and seal the liquid inlet 11 and / or the liquid outlet 12, thereby strengthening the sealing performance of the solenoid valve. At the same time, the sealing mechanism further weakens the corrosive effect of the liquid on the sealing ring, thereby increasing the service life of the solenoid valve.

[0026] This embodiment uses a sealing mechanism to simultaneously seal the liquid inlet 11 and the liquid outlet 12 during sealing. The sealing component acts on the liquid inlet 11 and the liquid outlet 12 simultaneously, further improving the sealing performance during sealing.

[0027] Specifically, the support base assembly includes a support base 13 and a mounting base 14 installed on the support base 13, the liquid inlet 11 and the liquid outlet 12 are respectively opened on the support base 13, and a through hole 15 is opened on the mounting base 14. The driving mechanism 2 is inserted into the mounting base 14 through the through hole 15 and abuts against the support base 13.

[0028] The support seat assembly is composed of a support base 13 and a mounting seat 14. By assembling the support base 13 and the mounting seat 14 and setting the through hole 15, the support base 13, the mounting seat 14 and the driving mechanism 2 are combined and fixed.

[0029] Specifically, the driving mechanism 2 includes a push rod 21, a spring 22 mounted on the push rod 21, and a driving assembly 23 that drives the push rod 21 toward and away from the support assembly 1. While the driving assembly 23 drives the push rod 21 to squeeze the sealing mechanism, the sealing mechanism is used to seal the liquid inlet 11 and / or liquid outlet 12.

[0030] The driving force is provided by the driving component 23 to push the push rod 21 toward the liquid inlet 11 supporting component 1. Combined with the action of the sealing mechanism, the push rod 21 is used to squeeze the sealing mechanism to seal the liquid inlet 11 and the liquid outlet 12. This embodiment adopts the method of simultaneously blocking the liquid inlet 11 and the liquid outlet 12, or according to actual selection, the liquid inlet 11 is blocked, or the liquid outlet 12 is blocked.

[0031] The driving component 23 energizes the control coil of the circuit board and drives the circuit board by utilizing the interaction between the magnetic field effect of the energized coil and the permanent magnet.

[0032] Specifically, the sealing mechanism includes a blocking component 31 provided on one side of the driving mechanism 2 and a limiting path 32 opened in the support component 1. The liquid inlet 11 and the liquid outlet 12 are both located in the limiting path 32, and the blocking component 31 is limited in displacement by the limiting path 32.

[0033] Since the push rod 21 moves in a straight line, the sealing mechanism is squeezed based on the push of the driving component 23. At this time, the sealing component 31 follows the end of the driving component 23 to move linearly. At the same time, with the help of the limiting path 32 of the supporting component 1, the sealing component 31 always moves along the limiting path 32 until the end of the sealing component 31 simultaneously blocks the liquid inlet 11 and the liquid outlet 12.

[0034] Specifically, the blocking assembly 31 includes a connecting end 311 connected to the driving mechanism 2 and an abutment block 312 circumferentially abutting the inner side of the limiting path 32. The driving mechanism 2 drives the abutment block 312 along the limiting path 32 through the connecting end 311 to move and abut the support assembly 1.

[0035] The connecting end 311 completes the connection between the sealing component 31 and the driving mechanism 2. The abutment block 312 is required to cover the liquid inlet 11 and the liquid outlet 12. Since a cavity is left in the limiting path 32, the abutment block 312 is arranged to abut circumferentially along the inner side of the limiting path 32. During the advancement process, liquid residue in the cavity can be avoided.

[0036] Specifically, a guide edge 313 is connected between the connecting end 311 and the abutment block 312. The guide edge 313 is arranged in a conical shape. The guide edge 313 forms a cavity path 314 on the limiting path 32. When the abutment block 312 moves along the limiting path 32 to abut the support assembly 1, the liquid is squeezed out through the cavity path 314.

[0037] The setting of the guide edge 313, on the one hand, realizes the connection between the connecting end 311 and the abutment block 312. On the other hand, based on the conical setting of the guide edge 313, a cavity path 314 can be formed in the limiting path 32, which can store air during the liquid circulation process. Since the guide edge 313 is made of soft rubber as a whole, during the extrusion process, combined with the stored air, the liquid inside the cavity path 314 can be completely squeezed out to avoid liquid residue. In addition, the guide edge 313 in this embodiment is opposite to the liquid inlet 11. Based on the residual air inside the cavity path 314, the liquid in the liquid inlet 11 can be discharged during the extrusion process to avoid liquid residue in the support component 1.

[0038] Specifically, a guide column 315 is provided on the side of the abutting block 312 away from the connecting end 311 , and a limiting groove 316 for the guide column 315 to slide is provided on the side of the supporting assembly 1 close to the driving mechanism 2 .

[0039] In order to further ensure the stability of the movement of the abutment block 312, the linear movement of the abutment block 312 is further reinforced through the cooperation of the guide column 315 and the limit groove 316, so that when the liquid inlet 11 and the liquid outlet 12 are opened, the abutment block 312 is restricted by the guide column 315, prompting the abutment block 312 to move along the main direction of the limit path 32 and slide along the direction of the limit groove 316. The diameter of the limit groove 316 is much smaller than that of the abutment block 312.

[0040] Specifically, the blocking component 31 is shaped like a web, and the connecting end 311, the guide edge 313, and the abutment block 312 are integrally formed. The integrally formed configuration further enhances the structural strength of the blocking component 31, and the blocking component 31 is made of plastic.

[0041] Specifically, a detachable connection mechanism 4 is provided between the sealing mechanism and the drive mechanism 2. The connection mechanism 4 is used to connect the sealing mechanism to the drive mechanism 2. Since the sealing mechanism is susceptible to corrosion under the erosion of liquid, the detachable connection of the connection mechanism 4 facilitates the replacement and removal of the sealing mechanism.

[0042] Specifically, the connecting mechanism 4 includes a connecting groove 41 provided at the end of the driving mechanism 2, a protrusion 42 opened at the end of the sealing mechanism, and a sleeve 43 provided on the end of the sealing mechanism. The sleeve 43 is provided with multiple claws 44 near the end of the driving mechanism 2, and the sleeve 43 is provided with a connecting hole 4515 near the end of the sealing mechanism. The protrusion 42 is inserted into the connecting hole 4515, and a limiting abutment is formed by the abutment edge 46 of the inner wall of the connecting hole 4515. The multiple claws 44 surround the connecting groove 41 to form a clamp.

[0043] The sleeve 43 is sleeved on the sealing mechanism and the driving mechanism 2, and the clamping between the clamping claws 44 on the sleeve 43 and the connecting groove 41 is used to promote the connection between the sleeve 43 and the driving mechanism 2. Similarly, the sleeve 43 is provided with a connecting hole 4515 at one end close to the sealing mechanism. The convex edge 42 is inserted into the connecting hole 4515, and the abutting edge 46 of the inner wall of the connecting hole 4515 forms a limiting abutment, which promotes the connection between the sleeve 43 and the sealing mechanism, thereby completing the connection between the sleeve 43, the sealing mechanism and the driving mechanism 2.

[0044] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A solenoid valve, characterized by: It includes a support assembly and a driving mechanism sliding on the support seat assembly, at least one liquid inlet and at least one liquid outlet are provided on one side of the support assembly, and the liquid inlet and / or liquid outlet are driven by the driving mechanism to be sealed or opened, and a sealing mechanism is provided between the driving mechanism and the support assembly. When the liquid inlet and / or liquid outlet are blocked, the liquid inlet and / or liquid outlet on the support assembly are blocked and sealed by the sealing mechanism.

2. The solenoid valve according to claim 1, wherein: The support base assembly includes a support base and a mounting base installed on the support base, the liquid inlet and the liquid outlet are respectively opened on the support base, a through hole is opened on the mounting base, and the driving mechanism is inserted into the mounting base through the through hole and abuts against the support base.

3. The solenoid valve according to claim 1, wherein: The driving mechanism includes a push rod, a spring sleeved on the push rod, and a driving assembly that drives the push rod toward and away from the support assembly. The driving assembly drives the push rod to squeeze the sealing mechanism while the sealing mechanism is used to block and seal the liquid inlet and / or liquid outlet.

4. The solenoid valve according to claim 1, wherein: The sealing mechanism includes a blocking component provided on one side of the driving mechanism and a limiting path opened on the supporting component. The liquid inlet and the liquid outlet are both located in the limiting path, and the blocking component is limited in displacement by the limiting path.

5. The solenoid valve according to claim 4, characterized in that: The blocking assembly includes a connecting end connected to the driving mechanism and an abutting block circumferentially abutting the inner side of the limiting path. The driving mechanism drives the abutting block through the connecting end to move along the limiting path to abut the supporting assembly.

6. The solenoid valve according to claim 5, characterized in that: A guide edge is connected between the connecting end and the abutment block. The guide edge is conically arranged to form a cavity path in the limiting path. When the abutment block moves along the limiting path and abuts the support assembly, the liquid is squeezed out through the cavity path.

7. The solenoid valve according to claim 5, characterized in that: A guide column is provided on a side of the abutment block away from the connection end, and a limiting groove for sliding of the guide column is provided on a side of the support assembly close to the driving mechanism.

8. The solenoid valve according to claim 6, characterized in that: The blocking component is configured in a webbed shape, and the connecting end, the guide edge, and the abutting block are integrally formed.

9. The solenoid valve according to claim 1, wherein: A connecting mechanism for achieving detachable connection is provided between the sealing mechanism and the driving mechanism.

10. The solenoid valve according to claim 9, characterized in that: The connecting mechanism includes a connecting groove provided at the end of the driving mechanism, a convex edge opened at the end of the sealing mechanism, and a sleeve provided on the end of the sealing mechanism. The sleeve is provided with a plurality of clamping claws at one end close to the driving mechanism, and a connecting hole is provided at one end of the sleeve close to the sealing mechanism. The convex edge is inserted into the connecting hole, and a limiting abutment is formed by the abutting edge of the inner wall of the connecting hole. The plurality of clamping claws surround the connecting groove to form a clamp.

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