CN219606117U

CN219606117U - Waterproof three-way electromagnetic valve

Info

Publication number: CN219606117U
Application number: CN202320879114.2U
Authority: CN
Inventors: 龙克文
Original assignee: Sanqiaohui Foshan New Material Co ltd
Current assignee: Sanqiaohui Foshan New Material Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-08-29
Anticipated expiration: 2033-04-19

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to a waterproof three-way electromagnetic valve; the device comprises a magnetic winding component and a three-way valve body, wherein a transfer tube is arranged on the three-way valve body, a connecting rod and a sealing sleeve are arranged in an inner hole of the transfer tube, the upper end of the sealing sleeve is fixedly connected with the magnetic winding component, the upper end of the connecting rod penetrates through the sealing sleeve and is matched and connected with the magnetic winding component, and the lower end of the connecting rod is inserted into an action cavity and is fixedly connected with a piston; the sealing sleeve has ductility, and the lower end of the sealing sleeve is fixedly connected with the middle part of the connecting rod; the utility model has reasonable structure, the sealing sleeve can effectively isolate the water and air flow in the three-way valve body from influencing the magnetic winding assembly, so that the magnetic winding assembly is completely insulated from the three-way valve body, the electrical safety of the electromagnetic valve is improved, and the service life of the electromagnetic valve is prolonged.

Description

Waterproof three-way electromagnetic valve

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a waterproof three-way electromagnetic valve.

Background

Electromagnetic valves are used in many current electrical products to realize automatic control of fluids such as water, gas and the like. The insulating mode between the iron core and the winding of the electromagnetic valve is generally realized by adopting enameled wires and insulating adhesive tapes, moisture is easy to invade the electromagnetic valve, the insulating property is reduced, and the moisture can further cause the iron core to rust so as to influence the service life of the electromagnetic valve.

Chinese patent CN208339375U discloses an electromagnetic chuck of electromagnetic valve, comprising: an iron core; a coil wound outside the core; the housing defines a containing cavity, the coil is positioned in the containing cavity, and the housing is made of a magnetic conductive material; wherein, be equipped with first insulating part between the coil with the iron core and/or be equipped with the second insulating part between the coil with the casing. The first insulating member is adhered to the coil or the core. The first insulating member includes an insulating tape.

The current solenoid valve structure is comparatively complicated, needs to carry out many times accessory equipment in the assembly flow to and the packing and the winding of sticky tape insulating layer, and the sticky tape insulating layer breaks and damages and can lead to the damage of solenoid valve, uses in steam system to have the safety problem, and the life-span of product receives serious restriction. Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the utility model provides the waterproof three-way electromagnetic valve which is reasonable in structure, high in safety and long in service life.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model relates to a waterproof three-way electromagnetic valve, which comprises a magnetic winding component and a three-way valve body, wherein an action cavity is arranged in the three-way valve body, the action cavity is respectively communicated with three terminals of the three-way valve body, and a piston is arranged in the action cavity; the three-way valve body is provided with a switching tube, the upper end of the switching tube is fixedly connected with the winding magnetic assembly, and the lower end of the switching tube is communicated with the action cavity; a connecting rod and a sealing sleeve are arranged in an inner hole of the transfer tube, the upper end of the sealing sleeve is fixedly connected with the magnetic winding assembly, the upper end of the connecting rod penetrates through the sealing sleeve and is matched and connected with the magnetic winding assembly, and the lower end of the connecting rod is inserted into the action cavity and is fixedly connected with the piston; the sealing sleeve has ductility, and the lower extreme of sealing sleeve is fixed connection with the connecting rod middle part.

According to the scheme, the magnetic winding assembly comprises a framework, a coil, a fixed magnetic core and a movable magnetic core, wherein the coil is wound on a winding slot at the outer side of the framework, and an action hole is formed in the framework; the fixed magnetic core is penetrated into the upper port of the action hole and fixedly connected with the framework, the movable magnetic core is movably penetrated into the lower port of the action hole, and a spring is arranged between the fixed magnetic core and the movable magnetic core; the upper end of the switching pipe is connected with the framework in a matching way, so that the action hole is communicated with the inner hole of the switching pipe, and the upper end of the connecting rod is fixedly connected with the movable magnetic core.

According to the scheme, around the magnetic assembly still including the shield cover, the skeleton wears to locate in the shield cover, the lower extreme of shield cover is the opening setting, and the closing cap has the bottom plate on the lower port of shield cover, bottom plate and shield cover fixed connection.

According to the scheme, be equipped with the rubber coating layer on around the magnetic assembly, the rubber coating layer cladding is on lateral wall, up end and the lower terminal surface of bottom plate of shield cover.

According to the scheme, the lower end face of the bottom plate is provided with the compression ring, the upper port of the adapter tube is internally provided with the limit groove, the compression ring is inserted into the upper port of the adapter tube and is arranged in a matched mode with the limit groove, and the upper end of the sealing sleeve is clamped between the compression ring and the limit groove; the bottom plate is provided with a through hole for communicating the action hole and the switching tube.

According to the scheme, the middle part of the connecting rod is provided with the H-shaped fixing groove, and the lower port of the sealing sleeve is sleeved on the fixing groove.

According to the scheme, the lower end of the framework is provided with the lead groove, the side wall of the shielding cover is provided with the lead notch, the lead welding spot of the coil is embedded in the lead groove, and the lead of the coil passes through the lead notch and then is led out from the encapsulation layer.

According to the scheme, the surface of the movable magnetic core is provided with an electroplated layer, and the connecting rod is made of stainless steel materials.

According to the scheme, the encapsulation layer is connected with the transfer pipe in an integrated mode.

The utility model has the beneficial effects that: the utility model has reasonable structure, the sealing sleeve can effectively isolate the water and air flow in the three-way valve body from influencing the magnetic winding assembly, so that the magnetic winding assembly is completely insulated from the three-way valve body, the electrical safety of the electromagnetic valve is improved, and the service life of the electromagnetic valve is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic diagram of an exploded construction of the present utility model.

In the figure:

1. a magnetic winding assembly; 2. a three-way valve body; 3. a connecting rod; 4. a shield; 11. a skeleton; 12. a coil; 13. fixing a magnetic core; 14. a movable magnetic core; 15. an action hole; 16. a spring; 17. a wire slot; 21. an action cavity; 22. a piston; 23. a transfer tube; 24. a limit groove; 31. sealing sleeve; 32. a fixing groove; 41. a bottom plate; 42. a glue coating layer; 43. a compression ring; 44. and a lead notch.

Detailed Description

The technical scheme of the utility model is described below with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the waterproof three-way electromagnetic valve comprises a winding magnetic assembly 1 and a three-way valve body 2, wherein an action cavity 21 is arranged in the three-way valve body 2, the action cavity 21 is respectively communicated with three terminals of the three-way valve body 2, and a piston 22 is arranged in the action cavity 21; the piston 22 changes the communication state between the three terminals of the three-way valve body 2 through up-down movement, for example, the three-way valve body 2 is provided with a first terminal, a second terminal and a third terminal, wherein the first terminal is a water inlet, the second terminal and the third terminal are water outlets, when the winding magnetic assembly 1 is not started, the piston 22 is blocked at the junction of the action cavity 21 and the third terminal, at the moment, the first terminal and the second terminal are in the communication state, and the second terminal is a normally open terminal. When the winding magnet assembly 1 is electrified and started, the driving piston 22 moves to the junction of the action cavity 21 and the second terminal, at the moment, the second terminal is closed, and the first terminal and the third terminal are in a communicating state.

The three-way valve body 2 is provided with a switching tube 23, the upper end of the switching tube 23 is fixedly connected with the winding magnetic assembly 1, and the lower end of the switching tube 23 is communicated with the action cavity 21; the connecting rod 3 and the sealing sleeve 31 are arranged in the inner hole of the switching tube 23, the upper end of the sealing sleeve 31 is fixedly connected with the winding magnetic assembly 1, the upper end of the connecting rod 3 penetrates through the sealing sleeve 31 and is matched and connected with the winding magnetic assembly 1, and the lower end of the connecting rod 3 is inserted into the action cavity 21 and is fixedly connected with the piston 22; the transfer pipe 23 is connected with the action cavity 21 and the winding magnetic assembly 1, and as water and air flow exist in the action cavity 21 and the transfer pipe 23, the inner cavity of the transfer pipe 23 is separated from the winding magnetic assembly 1 through the sealing sleeve 31, so that the influence of the water and the air flow on the winding magnetic assembly 1 can be effectively avoided, the insulation sealing performance is improved, and the electrical safety is improved.

The sealing sleeve 31 has ductility, and the lower end of the sealing sleeve 31 is fixedly connected with the middle part of the connecting rod 3. The preferable sealing sleeve 31 has the characteristic of a corrugated pipe, so that the sealing sleeve 31 has the scalability, when the connecting rod 3 moves away from the winding magnetic assembly 1, the sealing sleeve 31 stretches, when the connecting rod 3 tends to move around the magnetic assembly 1, the sealing sleeve 31 contracts, and the sealing sleeve 31 can always block the three-way valve body 2 and the winding magnetic assembly 1 in the moving process, so that the safety of the winding magnetic assembly 1 is ensured.

The winding magnetic assembly 1 comprises a framework 11, a coil 12, a fixed magnetic core 13 and a movable magnetic core 14, wherein the coil 12 is wound on a winding slot at the outer side of the framework 11, and an action hole 15 is formed in the framework 11; the fixed magnetic core 13 is penetrated into the upper port of the action hole 15 and fixedly connected with the framework 11, the movable magnetic core 14 is movably penetrated into the lower port of the action hole 15, and a spring 16 is arranged between the fixed magnetic core 13 and the movable magnetic core 14; the upper end of the switching tube 23 is connected with the framework 11 in a pairing way, so that the action hole 15 is communicated with the inner hole of the switching tube 23, and the upper end of the connecting rod 3 is fixedly connected with the movable magnetic core 14. The magnetic winding assembly 1 further comprises a shielding cover 4, the framework 11 is arranged in the shielding cover 4 in a penetrating mode, the lower end of the shielding cover 4 is provided with an opening, a bottom plate 41 is covered on the lower port of the shielding cover 4, and the bottom plate 41 is fixedly connected with the shielding cover 4. The structure and functional arrangement of the frame 11, the coil 12, the fixed magnetic core 13, the movable magnetic core 14 and the shielding case 4 are not different from the prior art, and therefore will not be described in detail. The difference between the utility model and the prior art is that the switching tube 23 is matched with the framework 11, so that the action hole 15 is communicated with the inner hole of the switching tube 23, and when the movable magnetic core 14 moves up and down along the action hole 15, the piston 22 can be driven by the connecting rod 3 to change the flow direction of fluid in the action cavity 21. Therefore, the sealing sleeve 31 establishes a partition barrier in the switching tube 23, so that the inner cavity of the three-way valve body 2 is independently arranged relative to the winding magnetic assembly 1, and the influence of water vapor fluid on the winding magnetic assembly 1 is avoided.

The lower extreme and the connecting rod 3 of seal cover 31 are hole axle cooperation, and the elasticity that seal cover 31 self had can guarantee above-mentioned hole axle complex leakproofness, the middle part of connecting rod 3 is equipped with "worker" font fixed slot 32, and the lower port suit of seal cover 31 is on fixed slot 32, and the lower port embedding of seal cover 31 sets up on fixed slot 32, makes the connection between seal cover 31 and the connecting rod 3 more stable, has two at least contact surfaces between seal cover 31 lower extreme and the fixed slot 32, and the leakproofness is more stable.

A pressing ring 43 is arranged on the lower end surface of the bottom plate 41, a limiting groove 24 is arranged in the upper port of the adapter tube 23, the pressing ring 43 is inserted into the upper port of the adapter tube 23 and is arranged in a matched mode with the limiting groove 24, and the upper end of the sealing sleeve 31 is clamped between the pressing ring 43 and the limiting groove 24; the bottom plate 41 is provided with a through hole for communicating the operation hole 15 with the adapter tube 23. It can be understood that the inner wall of the upper port of the adapter tube 23 is provided with an annular step to form the limit groove 24, the upper end of the sealing sleeve 31 is provided with a bushing ring structure, the bushing ring structure is used for being clamped between the compression ring 43 and the limit groove 24, and the upper end of the sealing sleeve 31 is fixed between the compression ring 43 and the limit groove 24 by the clamping force of the adapter tube 23 opposite to the bottom plate 41.

The magnetic winding assembly 1 is provided with an encapsulating layer 42, and the encapsulating layer 42 is coated on the outer side wall and the upper end surface of the shielding cover 4 and the lower end surface of the bottom plate 41. The shielding case 4 and the bottom plate 41 have larger rigidity to avoid the influence of external impact on the magnetic winding assembly 1, and simultaneously, the shielding case 4 is made of ferrous materials and is used for manufacturing electromagnetic interference generated when the shielding coils 12 are electrified. Further, the glue coating 42 encapsulates the whole wound magnetic assembly 1 as a whole and ensures insulation of the wound magnetic assembly 1 from the outside.

The lower end of the framework 11 is provided with a lead groove 17, the side wall of the shielding cover 4 is provided with a lead notch 44, a lead welding spot of the coil 12 is embedded in the lead groove 17, and a lead of the coil 12 passes through the lead notch 44 and then is led out from the encapsulation layer 42. Welding spots exist between the coil 12 and the lead wires, the wiring ends of the coil 12 can be arranged in the lead wire grooves 17 in a penetrating mode, the lead wires are led out through the lead wire gaps 44, the lead wires and the welding spots can be fixed when the glue coating 42 is formed, and the influence of the insulation property caused by the fact that the welding spots of the lead wires pierce the glue coating 42 is avoided.

The surface of the movable magnetic core 14 is provided with an electroplated layer, and the connecting rod 3 is made of stainless steel materials. The sealing sleeve 31 is arranged around the magnetic assembly 1 and the three-way valve body 2 in a spaced mode, the movable magnetic core 14 can be prevented from being corroded by using an electroplating process, and the movable magnetic core 14 is positioned in the action hole 15 and is not in contact with fluid in the three-way valve body 2, so that the influence of an electroplated layer on water is avoided. The connecting rod 3 is in contact with the fluid in the three-way valve body 2 through the transfer tube 23, so that the connecting rod 3 is made of 304 stainless steel materials, and the electromagnetic valve is prevented from being blocked due to rust.

After the magnetic assembly 1 is assembled, the encapsulation layer 42 is wrapped outside the shielding cover 4 by adopting a molding process to ensure the electrical insulation of the magnetic assembly 1, the switching tube 23 is used as a transition structure between the magnetic assembly 1 and the three-way valve body 2, the switching tube 23 and the encapsulation layer 42 are integrally molded, the processing flow can be simplified, the three-way valve body 2 can be connected with the switching tube 23 by adopting a secondary molding process, and the three-way valve body 2 can be assembled and connected with the switching tube 23, so that a sealing ring structure is needed to be added at the joint of the three-way valve body 2 and the switching tube 23.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. The waterproof three-way electromagnetic valve comprises a winding magnetic assembly (1) and a three-way valve body (2), wherein an action cavity (21) is arranged in the three-way valve body (2), the action cavity (21) is respectively communicated with three terminals of the three-way valve body (2), and a piston (22) is arranged in the action cavity (21); the method is characterized in that: a switching tube (23) is arranged on the three-way valve body (2), the upper end of the switching tube (23) is fixedly connected with the winding magnetic assembly (1), and the lower end of the switching tube (23) is communicated with the action cavity (21); a connecting rod (3) and a sealing sleeve (31) are arranged in an inner hole of the switching tube (23), the upper end of the sealing sleeve (31) is fixedly connected with the winding magnetic assembly (1), the upper end of the connecting rod (3) penetrates through the sealing sleeve (31) and is matched and connected with the winding magnetic assembly (1), and the lower end of the connecting rod (3) is inserted into the action cavity (21) and is fixedly connected with the piston (22); the sealing sleeve (31) has ductility, and the lower end of the sealing sleeve (31) is fixedly connected with the middle part of the connecting rod (3).

2. The waterproof three-way electromagnetic valve according to claim 1, characterized in that: the winding magnetic assembly (1) comprises a framework (11), a coil (12), a fixed magnetic core (13) and a movable magnetic core (14), wherein the coil (12) is wound on a winding groove at the outer side of the framework (11), and an action hole (15) is formed in the framework (11); the fixed magnetic core (13) is penetrated into the upper port of the action hole (15) and is fixedly connected with the framework (11), the movable magnetic core (14) is movably penetrated into the lower port of the action hole (15), and a spring (16) is arranged between the fixed magnetic core (13) and the movable magnetic core (14); the upper end of the switching tube (23) is connected with the framework (11) in a matching way, so that the action hole (15) is communicated with the inner hole of the switching tube (23), and the upper end of the connecting rod (3) is fixedly connected with the movable magnetic core (14).

3. The waterproof three-way electromagnetic valve according to claim 2, characterized in that: the magnetic winding assembly (1) further comprises a shielding cover (4), the framework (11) is arranged in the shielding cover (4) in a penetrating mode, the lower end of the shielding cover (4) is provided with an opening, the lower port of the shielding cover (4) is covered with a bottom plate (41), and the bottom plate (41) is fixedly connected with the shielding cover (4).

4. A waterproof three-way electromagnetic valve according to claim 3, characterized in that: the magnetic winding assembly (1) is provided with an encapsulating layer (42), and the encapsulating layer (42) is coated on the outer side wall and the upper end face of the shielding cover (4) and the lower end face of the bottom plate (41).

5. A waterproof three-way electromagnetic valve according to claim 3, characterized in that: a pressing ring (43) is arranged on the lower end surface of the bottom plate (41), a limiting groove (24) is arranged in the upper port of the switching tube (23), the pressing ring (43) is inserted into the upper port of the switching tube (23) and is arranged in a matched mode with the limiting groove (24), and the upper end of the sealing sleeve (31) is clamped between the pressing ring (43) and the limiting groove (24); the bottom plate (41) is provided with a through hole for communicating the action hole (15) with the switching tube (23).

6. The waterproof three-way electromagnetic valve according to claim 5, characterized in that: the middle part of connecting rod (3) is equipped with "worker" font fixed slot (32), and the lower port cover of seal cover (31) is adorned on fixed slot (32).

7. A waterproof three-way electromagnetic valve according to claim 3, characterized in that: the lower extreme of skeleton (11) is equipped with wire groove (17), is equipped with lead notch (44) on the lateral wall of shield cover (4), and the wire solder joint of coil (12) inlays and inlays in wire groove (17), and the lead wire of coil (12) passes behind lead notch (44) is drawn forth from rubber coating layer (42).

8. The waterproof three-way electromagnetic valve according to claim 2, characterized in that: the surface of the movable magnetic core (14) is provided with an electroplated layer, and the connecting rod (3) is made of stainless steel materials.

9. The waterproof three-way electromagnetic valve according to claim 4, characterized in that: the encapsulation layer (42) is integrally connected with the adapter tube (23).