Low-noise low-water-pressure valve
By installing rubber cores at both ends of the solenoid valve core and adopting a anti-stupid design, the problems of high noise and anti-water leakage are solved, and low noise and reliable water pressure control are achieved.
Patent Information
- Application Number
- CN202422421332.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing solenoid valves are noisy under AC current drive, and the collision between the iron core and the inner sleeve wall or spring leads to noise, and there is a risk of anti-water leakage.
Install rubber cores at both ends of the iron core, adopt a stupid-proof design to avoid the iron core from being installed and reducing vibration through the rubber core buffering to prevent the iron core from directly colliding with the inner sleeve.
Effectively prevent the iron core from being installed and reversed, reduce noise, improve user experience, extend the valve body life, and reduce the risk of noise and water leakage.
Smart Images
Figure CN223049540U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of solenoid valves, and more specifically, relates to a low-noise and low-water-pressure valve. Background Art
[0002] According to the market defect statistics of solenoid valves for washing machines on the current market, noise is the third major defect feature. The main noise is also the abnormal sound when the valve is filled with water. The existing solenoid valve design mainly drives the iron core to move by a coil. Since the voltage in the domestic market is mostly AC220V 50 / 60Hz, when the solenoid valve is opened under low water pressure, due to alternating current, the direction of the current changes with the frequency, the change of the current direction causes the change of the magnetic field direction, and the change of the magnetic field direction causes the change of the moving direction of the iron core. Therefore, after the solenoid valve is started, the iron core makes a reciprocating motion in the valve cavity, and the reciprocating motion causes the iron core to collide and vibrate with the inner sleeve wall or the spring, resulting in noise, which makes the user experience poor when using electrical water equipment. Based on the mechanism of noise generation, in the case where it is impossible to change alternating current to direct current, we reduce the noise by installing an elastic seal on the other end of the iron core. At the same time, an anti-fooling design is made to reduce the consideration of incorrect assembly, and there is no water leakage whether it is installed correctly or incorrectly.
[0003] In view of this, the present utility model is specifically proposed. Content of the Utility Model
[0004] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:
[0005] A low-noise and low-water-pressure valve, comprising a valve body;
[0006] An inner sleeve arranged inside the valve body, a sealing ring is arranged inside the inner sleeve, an iron core is arranged inside the valve body, a sealing ring holder is arranged below the sealing ring, rubber cores are arranged at the upper and lower ends of the iron core, and a coil is arranged above the inside of the valve body.
[0007] As a preferred embodiment of the present utility model, upper yoke iron and lower iron plate are respectively arranged at the upper and lower ends of the coil, and a spring is sleeved outside the rubber core arranged above the iron core.
[0008] As a preferred embodiment of the present utility model, the lower iron plate and the upper yoke iron are installed on the valve body by screws
[0009] As a preferred embodiment of the present utility model, the number of the rubber cores is two, and the rubber cores are symmetrically distributed up and down at the upper and lower ends of the iron core
[0010] As a preferred embodiment of the present utility model, the inner outer walls of the lower iron plate and the upper yoke iron are fitted and adapted to the outside of the coil
[0011] The utility model has the following beneficial effects compared with the prior art:
[0012] In the utility model, in the existing market, the structural design of the iron core and the rubber core assembly only has a rubber core at one end, and then there is a risk of leakage caused by incorrect installation of the assembly. In the existing structure, the spring directly cooperates with the iron core for friction, and after suction, the iron core will collide with the inner sleeve. With the iron core structure with rubber cores installed at both ends designed by the utility model, firstly, it can effectively prevent incorrect installation and avoid incorrect installation of the iron core assembly. Secondly, it can avoid direct collision between the iron core and the inner sleeve after suction, and only the rubber core collides with the inner sleeve. Since the rubber core is an elastic component, it will have a buffering effect on vibration. The direct contact between the spring and the iron core is also avoided, resulting in hard friction. Vibration is reduced in multiple aspects, thereby reducing noise and improving the user experience of the noise after the water inlet valve is powered on.
[0013] The following further describes in detail the specific implementation manners of the utility model with reference to the accompanying drawings. Description of the Drawings
[0014] In the drawings:
[0015] Figure 1 is the overall sectional structure schematic diagram of the utility model;
[0016] Figure 2 is the schematic diagram of the existing structure of the utility model.
[0017] In the figure: 1, valve body; 2, inner sleeve; 3, sealing ring; 4, iron core; 5, sealing ring holder; 6, rubber core; 7, coil; 8, spring; 9, lower iron plate; 10, upper yoke iron. Specific Implementation Manner
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0019] As Figure 1 shown, a low-noise and low-water-pressure valve includes a valve body 1, an inner sleeve 2 arranged inside the valve body 1, a sealing ring 3 arranged inside the inner sleeve, an iron core 4 arranged inside the valve body 1, a sealing ring holder 5 arranged below the sealing ring 3, rubber cores 6 arranged at the upper and lower ends of the iron core 4, and a coil 7 arranged above the inside of the valve body 1.
[0020] Furthermore, the lower iron plate 9 and the upper yoke iron 10 are installed on the valve body 1 by screws, so as to ensure that the lower iron plate 9 and the upper yoke iron 10 can be stably installed on the valve body 1, prevent tremors from occurring during operation, form noise, and at the same time reduce the service life of the valve body 1.
[0021] Furthermore, the number of rubber cores 6 is two, and the rubber cores 6 are symmetrically distributed up and down at the upper and lower ends of the iron core 4, so as to buffer and protect the upper and lower ends of the iron core 4, thereby further improving the sound insulation effect during the use of the valve body 1 and extending the service life of the valve body 1.
[0022] Upper yoke iron 10 and lower iron plate 9 are respectively arranged at the upper and lower ends of the coil 7, and a spring 8 is sleeved outside the rubber core 6 arranged above the iron core 4.
[0023] Further, the inner outer walls of the lower iron plate 9 and the upper yoke iron 10 are fitted with the outside of the coil 7, so as to ensure that there is no gap between the lower iron plate 9, the upper yoke iron 10 and the coil 7, thereby ensuring the sound insulation effect during the operation of the valve body 1.
[0024] The implementation principle of a low-noise and low-water-pressure valve in this embodiment is as follows: After the rubber core 6 is assembled at both ends of the iron core 4 in the present invention, when the solenoid valve coil 7 is energized, the iron core 4 moves upward under the action of the magnetic field generated by the coil 7, and the middle hole is opened to relieve pressure. Applying the pilot principle, the solenoid valve opens the water inlet. When the coil 7 is de-energized, the iron core 4 resets under the action of the spring force and gravity. When the rubber core 6 touches the middle hole of the seal ring holder 5, the middle hole is closed to relieve pressure, the pressure in the valve cavity increases, and the seal ring holder 5 assembly moves downward, so that the valve closes and the solenoid valve water inlet stops.
[0025] In the existing market, the structural design of the iron core 4 and the rubber core 6 assembly has a rubber core 6 only at one end, and then there is a risk of leakage caused by incorrect installation of the assembly. In the existing structure, the spring 8 directly cooperates with the iron core 4 for friction, and after suction, the iron core 4 will collide with the inner sleeve 2. With the structure of installing rubber cores 6 at both ends of the iron core 4 in this practical design, firstly, it can effectively prevent misinstallation and avoid incorrect installation of the iron core 4 assembly. Secondly, it can avoid direct collision between the iron core 4 and the inner sleeve after suction. Only the rubber core 6 collides with the inner sleeve 2. Since the rubber core 6 is an elastic component, it will have a buffering effect on vibration. The spring 8 and the iron core 4 also avoid direct contact and hard friction, reducing vibration in many aspects, thereby reducing noise and improving the user experience of the noise after the water inlet valve is energized.
Claims
1. A low-noise, low-water-pressure valve, comprising a valve body (1); The inner sleeve (2) arranged inside the valve body (1) is characterized in that: A sealing ring (3) is arranged inside the inner sleeve, an iron core (4) is arranged inside the valve body (1), a sealing ring frame (5) is arranged below the sealing ring (3), rubber cores (6) are arranged at the upper and lower ends of the iron core (4), and a coil (7) is arranged above the inside of the valve body (1).
2. A low noise and low water pressure valve according to claim 1, characterized in that: An upper yoke (10) and a lower iron plate (9) are respectively provided at the upper and lower ends of the coil (7), and a spring (8) is sleeved on the outside of the rubber core (6) arranged above the iron core (4).
3. A low noise and low water pressure valve according to claim 2, characterized in that: The lower iron plate (9) and the upper yoke iron (10) are mounted on the valve body (1) by means of screws.
4. A low noise and low water pressure valve according to claim 1, characterized in that: The number of the rubber cores (6) is two, and the rubber cores (6) are distributed at the upper and lower ends of the iron core (4) in an upper and lower symmetrical structure.
5. A low noise and low water pressure valve according to claim 2, characterized in that: The inner and outer walls of the lower iron plate (9) and the upper yoke (10) fit snugly with the outside of the coil (7).