Automobile electromagnetic drain valve

Abstract

The utility model relates to an automobile electromagnetic drain valve, which realizes automatic drainage by simplifying the structure and adopting an auxiliary valve core, a sealing element, a spring and a coil assembly. The manufacturing cost is reduced, and the reliability and the stability in a low-temperature environment are improved. A first flow channel and a second flow channel are arranged in the valve to increase the water discharge amount and improve the efficiency. The valve cover enhances the sealing effect and prevents leakage. And the stability of the sealing element is ensured through the design of a mounting groove and a barb below the auxiliary valve element. The sealing piece made of rubber is suitable for different working environments, and the service life is prolonged. The guide hole provides a stable installation position for the spring, and the response speed and accuracy are improved. And the wire outlet sheath protects the coil assembly connecting wire, so that the electrical safety is enhanced.

Description

Technical Field

[0001] The utility model particularly relates to an automobile electromagnetic drain valve. Background Art

[0002] The automobile solenoid drain valve is a device specially designed for heavy-duty vehicles to discharge waste liquid from the air tank. It mainly controls the opening and closing of the main and auxiliary valve cores through the coil assembly to achieve automatic drainage function. It has the characteristics of not easy to clog, good sealing, and strong cold resistance, thus ensuring the normal operation of the drain valve and the stable operation of the vehicle.

[0003] The Chinese utility model patent document, publication number "CN204512447U," discloses a solenoid drain valve for heavy-duty truck air tanks. The valve body comprises a valve seat and a water outlet channel, while a base plate with a water outlet hole is mounted on the bottom. The main valve core comprises a valve body, a valve head, a sealing seat, and a valve stem. A spring is coupled to the upper end of the valve body, controlling the opening and closing of the water outlet channel by raising and lowering the valve stem, thereby achieving drainage.

[0004] The solenoid drain valve for heavy-duty vehicle air tanks must utilize a main valve core (valve core body, valve core head, and sealing seat) to prevent flow control. This results in a complex overall structure, including multiple components such as the valve core body, valve core head, sealing seat, and valve core stem. This increases the difficulty of manufacturing and assembly, and also increases production costs.

[0005] Furthermore, the spring groove on the main valve core is prone to water accumulation during drainage. Especially in low temperature environments, the accumulated water may freeze, resulting in weakened spring elasticity and smaller drainage volume. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide an automobile electromagnetic drain valve in view of the above-mentioned deficiencies in the prior art, which has a simple structure, low cost and a larger drainage capacity.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An automobile electromagnetic drain valve includes a valve body, wherein a secondary valve core and a coil assembly sleeved on the outer periphery of the secondary valve core are provided in the valve body, a water outlet channel distributed above the secondary valve core, and a water outlet hole distributed below the secondary valve core are provided in the valve body, and the valve body is characterized in that: the upper part of the secondary valve core is linked to a spring, and the lower part of the secondary valve core is linked to a seal corresponding to the water outlet hole; when the coil assembly is energized, the secondary valve core can be driven upward; when the coil assembly is not energized, the spring pushes the lower secondary valve core downward until the seal blocks the water outlet hole.

[0009] By simplifying the structure and using only the auxiliary valve core and seal, along with the spring and coil assembly, the drain function is automated. This reduces manufacturing and assembly complexity, the number of components, and thus production costs. It also avoids the problem of water accumulation and freezing in the spring groove of traditional main valve core structures, improving the reliability and stability of the drain valve in low-temperature environments.

[0010] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: a first flow channel is provided in the middle of the auxiliary valve core along its own axial direction, the upper part of the first flow channel is connected to the water outlet channel, and a second flow channel is provided in the auxiliary valve core along a direction perpendicular to its own axial direction, and the middle part of the second flow channel is connected to the lower part of the first flow channel.

[0011] A first flow channel and a second flow channel are added in the auxiliary valve core to increase the drainage volume. Compared with the existing technology, the electromagnetic drain valve designed in this application is more efficient.

[0012] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: a valve cover is provided in the valve body and is distributed between the water outlet and the auxiliary valve core; a water hole connected to the water outlet is passed through the middle of the valve cover; when the coil assembly is not energized, the spring pushes the auxiliary valve core downward until the seal blocks the water hole.

[0013] Installing a valve cover above the water outlet can further enhance the sealing effect, ensuring that when water is not draining, the seal can effectively block the water hole to prevent water leakage, thereby improving the sealing and durability of the drain valve.

[0014] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: a mounting groove is provided under the auxiliary valve core, the mounting groove is open toward the water outlet, the inner ring of the opening of the mounting groove is provided with a barb protruding toward one side of the center of the mounting groove, the sealing member is distributed in the mounting groove, and the outer periphery of the sealing member is provided with a step surface adapted to the barb.

[0015] The barb in the installation groove cooperates with the stepped surface of the seal to ensure the stability and firmness of the seal during installation, prevent the seal from falling off due to water impact or vibration, and further improve the reliability and service life of the drain valve.

[0016] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: the material of the sealing component is rubber.

[0017] The seal is made of rubber material, which has good elasticity and sealing performance and can adapt to working environments under different temperature and pressure conditions. At the same time, the rubber material also has a certain corrosion resistance, which extends the service life of the drain valve.

[0018] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: a first guide hole is provided below the water outlet channel, the inner diameter of the first guide hole is larger than the inner diameter of the water outlet channel, a second guide hole is provided above the first flow channel, the inner diameter of the second guide hole is larger than the inner diameter of the first flow channel, the upper end of the spring is inserted into the first guide hole, and the lower end is inserted into the second guide hole.

[0019] The "first guide hole and the second guide hole" provide a stable installation position for the spring, guide the spring during the compression and release process, and improve the response speed and action accuracy of the drain valve.

[0020] The above-mentioned automobile electromagnetic drain valve can be further configured as follows: a wire outlet sheath is provided on the side of the valve body corresponding to the coil assembly.

[0021] The connecting wires of the coil assembly are protected, short circuits or wear that may occur due to exposed wires are prevented, and the electrical safety and service life of the drain valve are improved.

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic cross-sectional view of an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle.

[0025] Reference numerals: valve body 1, auxiliary valve core 2, coil assembly 3, water outlet channel 4, water outlet hole 5, spring 6, seal 7, first flow channel 8, second flow channel 9, valve cover 10, water hole 11, mounting groove 12, barb 13, step surface 14, first guide hole 15, second guide hole 16, wire outlet sheath 17. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 2The illustrated automotive solenoid drain valve comprises a valve body 1, housing a secondary valve core 2 and a coil assembly 3 sleeved around the secondary valve core 2. The valve body 1 includes a water outlet channel 4 located above the secondary valve core 2 and a water outlet hole 5 located below the secondary valve core 2. A spring 6 is coupled to the upper portion of the secondary valve core 2, while a seal 7 corresponding to the water outlet hole 5 is coupled to the lower portion of the secondary valve core 2. When the coil assembly 3 is energized, it pushes the secondary valve core 2 upward. When the coil assembly 3 is deenergized, the spring 6 pushes the secondary valve core 2 downward until the seal 7 seals the water outlet 5. By simplifying the structure and utilizing only the secondary valve core 2 and the seal 7, in conjunction with the spring 6 and coil assembly 3, the drain function is automated. This reduces manufacturing and assembly complexity, the number of components, and thus production costs. Furthermore, the problem of water accumulation and freezing in the spring 6 groove of the traditional main valve core structure is avoided, improving the reliability and stability of the drain valve in low-temperature environments.

[0028] A first flow channel 8 is provided in the middle of the auxiliary valve core 2 along its own axis. The upper portion of the first flow channel 8 is connected to the water outlet channel 4. A second flow channel 9 is provided in the auxiliary valve core 2 along a direction perpendicular to its own axis. The middle portion of the second flow channel 9 is connected to the lower portion of the first flow channel 8. This increases the drainage volume and is more efficient than the existing technology.

[0029] A valve cover 10 is installed within the valve body 1, located between the water outlet 5 and the auxiliary valve core 2. A water passage 11, which communicates with the water outlet 5, is pierced through the center of the valve cover 10. When the coil assembly 3 is de-energized, the spring 6 pushes the auxiliary valve core 2 downward until the seal 7 blocks the water passage 11. Installing the valve cover 10 above the water outlet 5 further enhances the sealing effect, ensuring that the seal 7 can effectively block the water passage 11 when the water is not being drained, preventing water leakage and improving the sealing and durability of the drain valve.

[0030] A mounting groove 12 is provided below the auxiliary valve core 2. The mounting groove 12 is open toward the water outlet 5. The inner ring of the opening of the mounting groove 12 is provided with a barb 13 protruding toward one side of the center of the mounting groove 12. The seal 7 is distributed within the mounting groove 12, and the outer periphery of the seal 7 is provided with a stepped surface 14 that adapts to the barb 13. The barb 13 in the mounting groove 12 cooperates with the stepped surface 14 of the seal 7 to ensure the stability and firmness of the seal 7 during installation, prevent the seal 7 from falling off due to water impact or vibration, and further improve the reliability and service life of the drain valve.

[0031] The material of the sealing member 7 is rubber. The sealing member 7 is made of rubber material, which has good elasticity and sealing performance, can adapt to working environments under different temperature and pressure conditions, and the rubber material also has certain corrosion resistance, which prolongs the service life of the drain valve.

[0032] A first guide hole 15 is provided below the water outlet channel 4. Its inner diameter is larger than that of the water outlet channel 4. A second guide hole 16 is provided above the first flow channel 8. Its inner diameter is larger than that of the first flow channel 8. The upper end of the spring 6 is inserted into the first guide hole 15, and the lower end is inserted into the second guide hole 16. The first and second guide holes 15 and 16 provide a stable mounting position for the spring 6, guiding it during compression and release, thereby improving the drain valve's response speed and operational accuracy.

[0033] A wire outlet sheath 17 is provided on the side of the valve body 1 corresponding to the coil assembly 3. This protects the connecting wires of the coil assembly 3, prevents short circuits or wear that may occur due to exposed wires, and improves the electrical safety and service life of the drain valve.

[0034] Working Principle: When coil assembly 3 is energized, auxiliary valve core 2 rises and compresses spring 6, causing liquid to flow from outlet channel 4 through first flow channel 8 and second flow channel 9, and then out through water passage 11 and outlet 5. When coil assembly 3 is de-energized, auxiliary valve core 2 returns to its original position under the action of spring 6 until seal 7 contacts valve cover 10, sealing water passage 11 and, in turn, outlet 5.

Claims

1. An automobile electromagnetic drain valve, comprising a valve body, a secondary valve core and a coil assembly sleeved around the secondary valve core, a water outlet channel located above the secondary valve core, and a water outlet hole located below the secondary valve core, characterized in that: The upper part of the auxiliary valve core is linked to a spring, and the lower part of the auxiliary valve core is linked to a seal corresponding to the water outlet hole; when the coil assembly is energized, the auxiliary valve core can be driven upward; when the coil assembly is not energized, the spring pushes the lower auxiliary valve core downward until the seal blocks the water outlet hole.

2. The automobile electromagnetic drain valve according to claim 1, characterized in that: A first flow channel is provided in the middle of the auxiliary valve core along its own axial direction, and the upper part of the first flow channel is connected to the water outlet channel. A second flow channel is provided in the auxiliary valve core and is distributed along a direction perpendicular to its own axial direction, and the middle part of the second flow channel is connected to the lower part of the first flow channel.

3. The automobile electromagnetic drain valve according to claim 1 or 2, characterized in that: The valve body is provided with a valve cover distributed between the water outlet and the auxiliary valve core. A water hole connected to the water outlet is penetrated in the middle of the valve cover. When the coil assembly is not energized, the spring pushes the auxiliary valve core downward until the seal blocks the water hole.

4. The automobile electromagnetic drain valve according to claim 3, characterized in that: An installation groove is provided below the auxiliary valve core, and the installation groove is open toward the water outlet. The inner ring of the opening of the installation groove is provided with a barb protruding toward the center of the installation groove. The sealing member is distributed in the installation groove, and the outer periphery of the sealing member is provided with a step surface adapted to the barb.

5. The automobile electromagnetic drain valve according to claim 4, characterized in that: The sealing element is made of rubber.

6. The automobile electromagnetic drain valve according to claim 2, characterized in that: A first guide hole is provided below the water outlet channel, and the inner diameter of the first guide hole is larger than the inner diameter of the water outlet channel. A second guide hole is provided above the first flow channel, and the inner diameter of the second guide hole is larger than the inner diameter of the first flow channel. The upper end of the spring is inserted into the first guide hole, and the lower end is inserted into the second guide hole.

7. The automobile electromagnetic drain valve according to claim 1 or 2, characterized in that: A wire outlet sheath is provided on the side of the valve body corresponding to the coil assembly.

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