Electromagnetic drain valve of washing machine

Abstract

The utility model belongs to the technical field of washing machine accessories, and particularly relates to a washing machine electromagnetic drain valve which mainly structurally comprises a valve body, a spring and a sliding iron core which are arranged inside the valve body, an electromagnetic coil arranged outside the valve body, and a water sealing plug which is arranged at the end of the sliding iron core and provided with telescopic corrugations. The bottom of the valve body is further provided with a water inlet and a water outlet which are perpendicular to each other, a height difference exists between the water inlet and the water outlet, the spring and the sliding iron core are arranged in an iron core channel in the valve body, and the top of the iron core channel is further provided with a vent hole. The water sealing plug is positioned at the intersection of the water inlet and the water outlet; the water sealing plug with the periphery provided with telescopic corrugations is additionally arranged at the tail end of the sliding iron core, the water sealing plug and the iron core channel are fixed in a sealed mode, wire scraps and dust are prevented from entering the iron core channel, a drift-diameter and non-enclosure structure is arranged between the water inlet and the water outlet, and blocking caused by accumulation of the wire scraps and dust is avoided.

Description

Technical fields:

[0001] This utility model belongs to the field of washing machine accessory technology, specifically relating to an electromagnetic drain valve for washing machines. By adding a water-sealing plug at the end of the sliding iron core and a barrier-free structure, along with a clear inlet and outlet, it solves the problems of failure and blockage. Background technology:

[0002] The electromagnetic drain valve used in washing machines is a drain control device. Its working principle is as follows: When power is off, the electromagnetic drain valve coil, under the action of a spring, causes the sealing plug at the end of the sliding iron core to press against the outlet, preventing water from flowing out. When power is on, the electromagnetic drain valve coil, under the action of magnetic force, moves the sliding iron core upwards, causing the sealing plug to leave the outlet, and water to flow out. Existing electromagnetic drain valves have the following problems: 1. When used in washing machine drainage scenarios, the washing machine drain carries lint and dust. When lint and dust enter between the sliding iron core and the iron core channel, the movement of the sliding iron core is blocked, causing the electromagnetic drain valve to malfunction; 2. The inlet and outlet of the electromagnetic drain valve are not through-hole structures, but have a barrier, causing lint and dust to accumulate and cause blockage. For example, Chinese Patent 202220683928.4 discloses a built-in electromagnetic drain valve, comprising: a valve body, in which an electromagnetic valve core is disposed, and a water outlet hole is disposed at the lower end of the valve body; a cover, on which a through hole communicating with the water outlet hole is disposed, and a groove for applying force when twisting is disposed on the lower side of the cover; a temperature control unit, which is used to heat the water outlet hole; wherein, the temperature control unit is mounted on the cover, the cover is embeddedly connected to the lower side of the valve body, and at least two grooves are provided and arranged circumferentially around the axis of the through hole, and further comprising: a first connecting groove, which is disposed on the lower side of the valve body, and the first connecting groove is connected to the cover. Correspondingly, the first connecting groove has an internal thread on its groove wall; the outer wall of the cover has an external thread corresponding to the internal thread, and the cover is threaded into the first connecting groove. It also includes: a convex ring, which protrudes from the upper side of the cover, and its inner wall communicates with the through hole; a second connecting groove, which is located above the first connecting groove and corresponds to the convex ring; and a sealing ring; wherein the inner diameter of the first connecting groove is larger than the inner diameter of the second connecting groove, and the inner diameter of the second connecting groove is larger than the inner diameter of the water outlet hole. The convex ring extends into the second connecting groove and presses the sealing ring tightly against the upper side of the second connecting groove, and the lower end face of the cover does not protrude from the lower end face of the valve body.Chinese Patent 202120895027.7 discloses a built-in sealed electromagnetic drain valve, comprising a main valve body with a valve cavity and a water outlet channel at the bottom; a pressure sleeve located at the bottom of the valve cavity, matching the inner wall of the valve cavity, with an inwardly extending inclined surface at the top of the pressure sleeve, and a through groove in the center of the pressure sleeve for fluid passage, the inclined surface surrounding the upper opening of the through groove; a valve core located in the valve cavity and moving up and down relative to the main valve body, with a conical surface at the bottom of the valve core corresponding to the inclined surface, the valve core being pressed downward against the inclined surface by a spring, the bottom of the inclined surface of the pressure sleeve bending outward to form an upper stop surface, a sealing ring located in the through groove, the sealing ring engaging between the upper stop surface and the cavity wall at the bottom of the valve cavity, and the sealing ring extending beyond the upper stop surface. The surface can contact the conical surface of the valve core. The outer edge of the inclined surface is located outside the outer edge of the bottom conical surface of the valve core. The central axis of the main valve body, the central axis of the water outlet channel, and the central axis of the valve core are all on the same straight line. The water outlet channel is located below the through groove and communicates with the through groove. A valve cover is also provided. A slot is provided at the bottom of the main valve body. The valve cover is fixed in the slot of the main valve body. The valve cover is threadedly connected to the main valve body. A step is provided at the bottom of the valve cavity. A platform is also provided on the outer side of the inclined surface of the pressure sleeve. The platform is horizontal. The platform at the top of the pressure sleeve is flush with the top surface of the step. The main valve body includes an upper valve body and a lower valve body. The valve cavity is formed between the upper valve body and the lower valve body. An adjusting rod is also provided. The adjusting rod is located in the upper valve body. The valve core is connected to the adjusting rod by a spring.Chinese Patent 201720303884.7 discloses an electromagnetic drain valve, comprising a drain valve body, a sealing cover, a magnetic component, and a magnetic component driving device. The drain valve body forms a cavity with an inlet on its side wall, an outlet at its bottom, and openings on the side wall and / or top. The inlet, outlet, and openings communicate with the cavity. The magnetic component is disposed within the cavity through the opening, which is sealed by the sealing cover, forming an electromagnetic coil receiving cavity. The magnetic component driving device includes an electromagnetic coil and an energizing control unit. The electromagnetic coil can be placed within the electromagnetic coil receiving cavity. The shape of the outlet is adapted to the magnetic component. When the electromagnetic coil is not energized, the magnetic component seals the outlet, and the outlet is closed. When the energizing control unit activates the electromagnetic coil to generate magnetic force, the magnetic force attracts the magnetic component sealing the outlet to the electromagnetic coil receiving cavity, causing the magnetic component to leave the outlet, and the outlet becomes open. The magnetic component is a magnetic ball. The electromagnetic drain valve body has an end structure that is adapted to the magnetic component, used to fix the magnetic component when it is attracted to the electromagnetic coil housing. The opening is located at the top of the drain valve body. When the opening is sealed with a cover, the electromagnetic coil housing is located directly above the water outlet, and the center point of the water inlet is higher than the center point of the magnetic component when the water outlet is sealed. The power control unit includes a power switch for the user to manually switch the energization state of the electromagnetic coil, and a controller for automatically switching the energization state of the electromagnetic coil. A wastewater detection unit is also provided inside the drain valve body, through which the controller can obtain relevant data on the pollution level of the water inside the drain valve body. The electromagnetic drain valve also includes a movable magnetic component located outside the drain valve body, used by the user to change the position of the magnetic component inside the drain valve body by moving the movable magnetic component outside the drain valve body, thereby controlling the conduction state of the electromagnetic drain valve. Therefore, this paper proposes to develop and design an electromagnetic drain valve for washing machines to solve the aforementioned failure and clogging problems. Summary of the Invention:

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and to develop and design an electromagnetic drain valve for washing machines. A water-sealing plug with retractable corrugations is added to the end of the sliding iron core, and an inlet and outlet of the same diameter are used.

[0004] To achieve the above objectives, the main structure of the washing machine electromagnetic drain valve of this utility model includes a valve body and a spring and a sliding iron core disposed inside it, an electromagnetic coil disposed outside it, and a water-sealing plug with retractable corrugations disposed at the end of the sliding iron core.

[0005] The valve body is mounted on the mounting bracket with a gap between them to allow the electromagnetic coil to be mounted on the outside of the valve body. The bottom of the valve body is also provided with a water inlet and a water outlet that are perpendicular to each other, with a height difference between them.

[0006] The spring and sliding iron core are installed in the iron core channel inside the valve body, and a vent hole is also provided at the top of the iron core channel;

[0007] The water seal plug is located at the intersection of the inlet and outlet.

[0008] Compared with the prior art, this utility model adds a water-sealing plug with retractable corrugations around the end of the sliding iron core, which seals and fixes it to the iron core channel, preventing wire debris and dust from entering the iron core channel. Furthermore, the inlet and outlet are open-circuit without any obstruction structure, avoiding blockage caused by the accumulation of wire debris and dust. Its structure is simple, solves the failure and blockage problems caused by wire debris and dust, reduces after-sales maintenance work, improves user experience satisfaction, and has significant economic value. Attached image description:

[0009] Figure 1 This is a schematic diagram of the main structure of this utility model. Detailed implementation method:

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0011] Example 1:

[0012] The main structure of a washing machine electromagnetic drain valve involved in this embodiment is as follows: Figure 1 As shown, it includes a mounting bracket 1, a valve body 2, an iron core channel 3, an electromagnetic coil 4, a water inlet 5, a water outlet 6, a vent 7, a spring 8, a sliding iron core 9, a water sealing plug 10, and a retractable corrugated coil 11.

[0013] The mounting bracket 1 is equipped with a valve body 2, with a gap between them. The valve body 2 has an iron core channel 3 inside and an electromagnetic coil 4 outside. The bottom is equipped with a horizontal inlet 5 and a vertical outlet 6. The inlet 5 and outlet 6 are connected in diameter and there is no obstruction between them.

[0014] The top of the iron core channel 3 is provided with a vent 7, the upper part is provided with a spring 8, and the lower part is provided with a sliding iron core 9;

[0015] A water-sealing plug 10 is provided at the end of the sliding iron core 9, and a retractable corrugation 11 is provided around the water-sealing plug 10;

[0016] The expandable corrugated 11 is sealed and fixed to the bottom of the iron core channel 3. Specifically, the expandable corrugated 11 is clamped and sealed by the valve body 2 and the iron core channel 3.

Claims

1. A washing machine electromagnetic drain valve, the main structure comprising a valve body mounted on a mounting bracket, an iron core channel inside the valve body, an electromagnetic coil outside the valve body, a water inlet and a water outlet at the bottom, a spring at the upper part of the iron core channel, and a sliding iron core at the lower part, characterized in that... A water-sealing plug is provided at the end of the sliding iron core, and the water-sealing plug is surrounded by retractable corrugations.

2. The electromagnetic drain valve for a washing machine according to claim 1, characterized in that, The expandable corrugated core is sealed and fixed to the iron core channel.

3. The electromagnetic drain valve for a washing machine according to claim 2, characterized in that, The expandable corrugations are clamped and sealed by the valve body and the iron core channel.

4. The electromagnetic drain valve for a washing machine according to claim 3, characterized in that, Ventilation holes are provided at the top of the iron core channel.

5. A washing machine electromagnetic drain valve according to any one of claims 1-4, characterized in that, There is a free flow path between the inlet and outlet, with no enclosure structure.

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