High-pressure-resistant electromagnetic valve
By using a valve core made of high-strength POM material and the design of setting an O-ring between the valve body and the armature, the problem of leakage of the solenoid valve in the gas environment in a high-pressure gas environment is solved, and zero leakage under 15MPa high-pressure conditions is achieved effect.
Patent Information
- Application Number
- CN202421015069.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
At present, the solenoid valves have problems with gas leakage in high-pressure gas environments, and their sealing properties are not tight enough to withstand pressures of more than 1MPa.
A high-voltage resistant solenoid valve is designed, and the valve core is made of high-strength POM material. High-pressure gas seal is achieved through plastic deformation, and an O-ring is set between the valve body and the armature to enhance the airtightness.
The effect of zero leakage in a 15MPa high-pressure gas environment is achieved, so that the solenoid valve can operate stably under high pressure conditions.
Smart Images
Figure CN222458367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a high-pressure resistant electromagnetic valve. Background Art
[0002] Solenoid valve is an industrial device controlled by electromagnetics. It is a basic component for controlling fluid automation. It is an actuator and is not limited to hydraulic and pneumatic. It is used in automobile and industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of control can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions of the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed regulating valves, etc.
[0003] However, the current solenoid valves are still insufficient to some extent. The sealing of the current valve equipment is not tight enough, and a sliding valve is generally used for sealing (i.e., gap sealing). The maximum pressure that the solenoid valve can withstand is within 1MPa. If the air pressure is higher than 1MPa, there will be internal gas leakage. Utility Model Content
[0004] The main purpose of the utility model is to provide a high-pressure resistant solenoid valve to solve the above technical problems, which can withstand 15MPa high-pressure gas and achieve zero gas leakage.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A high-pressure resistant solenoid valve includes a valve body, a valve sleeve, a valve core, a spring, a pull rod, a coil, an armature and a nut, wherein the valve sleeve is clamped on the valve body, the armature is provided with a mounting groove, the pull rod is inserted into the mounting groove, a limiting hole is provided in the pull rod, the valve core is inserted into the pull rod, one end of the spring abuts against the valve core, and the other end abuts against the armature, the valve core is inserted into the valve sleeve, the armature is threadedly connected to the valve body, the coil is sleeved on the armature, the nut is threadedly connected to the armature and abuts against the coil.
[0007] As a preferred technical solution, a valve core end is provided on the valve core, and the valve core end is provided at one end of the valve core. A limit block is provided on the pull rod, and the limit block is provided at the end of the limit hole, and the valve core end abuts against the limit block.
[0008] As a preferred technical solution, the other end of the valve core is conical.
[0009] As a preferred technical solution, the valve body includes an air inlet channel, a cut-off groove and an air outlet channel, the air inlet channel, the cut-off groove and the air outlet channel are connected in sequence, and the valve sleeve is installed in the cut-off groove.
[0010] As a preferred technical solution, the valve sleeve is provided with a first channel, a second channel and a third channel, and the first channel, the second channel and the third channel are interconnected.
[0011] As a preferred technical solution, a cut-off channel is further provided on the valve core, and the cut-off channel is provided at the end of the valve core.
[0012] As a preferred technical solution, it further includes an O-ring installed between the valve body and the armature.
[0013] The beneficial effects of the utility model are as follows: the valve core of the above-mentioned high-pressure resistant solenoid valve is made of high-strength POM material, and can achieve high-pressure gas sealing through plastic deformation of plastic, and the end of the valve core is conical, and a high-precision valve sleeve is adopted, so that the valve core can completely block the valve sleeve, and an O-ring is arranged between the valve body and the armature to further improve the sealing ability, thereby achieving 0 gas leakage, so that the solenoid valve can withstand 15MPa high-pressure gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a cross-sectional view of the high-pressure resistant solenoid valve involved in the utility model when the power is off;
[0015] Figure 2 It is a cross-sectional view of the high-pressure resistant solenoid valve of the utility model when it is energized. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0017] Please combine Figure 1 and Figure 2As shown, a high-pressure resistant solenoid valve includes a valve body 1, a valve sleeve 2, a valve core 4, a spring 7, a pull rod 6, a coil 5, an O-ring 3, an armature 8 and a nut 9. The valve sleeve 2 is clamped on the valve body 1, and the armature 8 is provided with a mounting groove 81. The pull rod 6 is inserted into the mounting groove 81. A limit hole 61 and a limit block 62 are provided in the pull rod 6. The limit block 62 is arranged at the end of the limit hole 61. The valve core 4 passes through the pull rod 6, and the valve core 4 is inserted into the valve sleeve 2. A valve core end 41 is provided on the valve core 4. The valve core end 41 is arranged at one end of the valve core 4. The valve core end 4 1 abuts against the limit block 62, one end of the spring 7 abuts against the valve core end 41, and the other end abuts against the bottom of the installation groove 81. When the solenoid valve is in the cut-off state, the end of the spring 7 is 5 mm higher than the end of the pull rod 6. The armature 8 is threadedly connected to the valve body 1. The material of the valve core 4 is POM, which allows the valve core 4 to deform slightly. The O-ring 3 is installed between the valve body 1 and the armature 8 to enhance the airtightness inside the solenoid valve. The coil 5 is sleeved on the armature 8. The nut 9 is threadedly connected to the armature 8 and abuts against the coil 5, thereby fixing the coil 5 on the armature 8.
[0018] The valve body 1 includes an air inlet channel 11, a stop groove 12 and an air outlet channel 13, which are connected in sequence. The high-pressure gas enters the solenoid valve through the air inlet channel 11 and leaves the solenoid valve through the air outlet channel 13. The valve sleeve 2 is installed in the stop groove 12 by interference fit. The valve sleeve 2 is provided with a first channel 21, a second channel 22 and a third channel 23, which are connected to each other. The other end of the valve core 4 is conical. The valve core 4 is also provided with a stop channel 42, which is provided at the end of the valve core 4.
[0019] Please continue to refer to Figure 1 As shown, when the above-mentioned high-pressure resistant solenoid valve is powered off, the elastic action of the spring 7 pushes the valve core 4 to move, so that the end of the valve core 4 abuts against the second channel 22, thereby blocking the second channel 22. At this time, the first channel 22 is connected to the third channel 23 through the cut-off channel 42. After the high-pressure gas enters from the intake channel 11, it flows to the cut-off groove 12, and is divided into two paths from the cut-off groove. One path enters the limiting hole 61 from the gap between the pull rod 6 and the mounting groove 81, and the other path passes through the first channel 21, the cut-off channel 42 and the third channel 23 in turn, and the O-ring 3 prevents the high-pressure gas from flowing out from the gap between the valve body 1 and the armature 8, thereby cutting off the high-pressure gas to the solenoid valve.
[0020] Please continue to refer to Figure 2As shown, when the above-mentioned high-pressure resistant solenoid valve is energized, the coil 5 is energized, and the pull rod 6 moves toward the armature 8 under the action of electromagnetic induction, the spring 7 is compressed, and the pull rod 6 drives the valve core 4 to move, so that the valve core 4 leaves the second channel 22, so that the second channel 21 is opened, and the high-pressure gas enters from the air inlet channel 11, flows to the cut-off groove 12, passes through the first channel 22 and the second channel 22 in sequence, and leaves the solenoid valve from the air outlet channel 13.
[0021] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.
Claims
1. A high pressure resistant solenoid valve, characterized in that: It includes a valve body, a valve sleeve, a valve core, a spring, a pull rod, a coil, an armature and a nut. The valve sleeve is clamped on the valve body, the armature is provided with a mounting groove, the pull rod is inserted into the mounting groove, a limiting hole is provided in the pull rod, the valve core is inserted into the pull rod, one end of the spring abuts against the valve core, and the other end abuts against the armature, the valve core is inserted into the valve sleeve, the armature is threadedly connected to the valve body, the coil is sleeved on the armature, the nut is threadedly connected to the armature and abuts against the coil.
2. The high pressure resistant solenoid valve according to claim 1, characterized in that: The valve core is provided with a valve core end, the valve core end is provided at one end of the valve core, the pull rod is provided with a limit block, the limit block is provided at the end of the limit hole, and the valve core end abuts against the limit block.
3. The high pressure resistant solenoid valve according to claim 2, characterized in that: The other end of the valve core is in a cone shape.
4. The high pressure resistant solenoid valve according to claim 3, characterized in that: The valve body comprises an air inlet channel, a cut-off groove and an air outlet channel, the air inlet channel, the cut-off groove and the air outlet channel are connected in sequence, and the valve sleeve is installed in the cut-off groove.
5. The high pressure resistant solenoid valve according to claim 4, characterized in that: The valve sleeve is provided with a first channel, a second channel and a third channel, and the first channel, the second channel and the third channel are interconnected.
6. The high pressure resistant solenoid valve according to claim 5, characterized in that: The valve core is also provided with a cut-off channel, and the cut-off channel is provided at the end of the valve core.
7. The high pressure resistant solenoid valve according to claim 6, characterized in that: It further includes an O-ring installed between the valve body and the armature.