CN218543296U

CN218543296U - Electromagnetic one-way valve

Info

Publication number: CN218543296U
Application number: CN202222767094.8U
Authority: CN
Inventors: 蔡国丁; 吴高杰; 李小强; 李凯
Original assignee: Changzhou Hengding Track Technology Co ltd
Current assignee: Changzhou Hengding Track Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-02-28
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses an electromagnetism check valve, including disk seat and the electromagnetic control portion of fixed mounting at the disk seat top, the inside of disk seat is equipped with the valve pocket, elastic mounting has the case in the valve pocket, the bottom and the side of valve pocket are equipped with the medium passageway that advances and go out the medium passageway that runs through the disk seat respectively, the upper end of case is run through the disk seat and is fixed continuous with the electromagnetic control portion, and the lower extreme contacts and covers with the bottom of valve pocket advance the medium passageway, the electromagnetic control portion is suitable for control the case reciprocates. The utility model discloses when satisfying the check function of check valve, can open the case through the signal of telecommunication effect again, let out the pressure of check valve rear end, realize two-way circulation, simplify the fluid control return circuit.

Description

Electromagnetic one-way valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to an electromagnetism check valve.

Background

The electromagnetic valve drives the iron core to move through electromagnetic force so as to control the opening and closing of the valve, the electromagnetic valve controls the on-off of the valve through an electric signal, and the electromagnetic valve can be matched with different circuits to realize expected control and is widely applied. Check valves are a common type of base valve used in fluid control, and are also known as check valves and back-up valves. The function of the one-way valve is to prevent the medium from flowing reversely in the hydraulic or pneumatic control system, the medium can only flow from the front end to the rear end, and when the medium at the rear end needs to be decompressed, the one-way valve only can be additionally connected with a decompression branch, so that the fluid control loop is relatively complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point and provide an electromagnetism check valve, when satisfying the check valve non return function, can open the case through the signal of telecommunication effect again, let out the pressure of check valve rear end, realize two-way circulation, simplify fluid control circuit.

Realize the utility model discloses purpose technical scheme is:

an electromagnetic check valve comprises a valve seat and an electromagnetic control part fixedly installed at the top of the valve seat, wherein a valve cavity is formed in the valve seat, a valve core is elastically installed in the valve cavity, a medium inlet channel and a medium outlet channel which penetrate through the valve seat are respectively formed in the bottom and the side edge of the valve cavity, the upper end of the valve core penetrates through the valve seat and is fixedly connected with the electromagnetic control part, the lower end of the valve core is in contact with the bottom of the valve cavity and covers the medium inlet channel, and the electromagnetic control part is suitable for controlling the valve core to move up and down.

Further, the electromagnetic control part comprises an electromagnetic coil fixedly mounted at the top of the valve seat, a static iron core is fixedly mounted in the center of the electromagnetic coil, a movable iron core fixedly mounted at the upper end of the valve core is arranged below the static iron core, and the upper end of the movable iron core extends to the electromagnetic coil.

Furthermore, a buffer ring which is coaxially and fixedly installed on the movable iron core is arranged between the outer wall of the movable iron core and the electromagnetic coil.

Further, the valve seat comprises a valve body, a groove is formed in the upper end of the valve body, a plug is fixedly mounted at the top of the groove, the valve element comprises a valve rod and an oblate table fixedly connected with the lower end of the valve rod, the upper end of the valve rod penetrates through the plug and is connected with the plug in a sliding and sealing mode, a spring sleeved on the valve rod is arranged between the oblate table and the plug, and the two ends of the spring are fixedly connected with the oblate table and the plug respectively.

Furthermore, the upper end of the flat round table and the lower end of the plug are both provided with annular convex portions, and two ends of the spring are respectively sleeved on the corresponding annular convex portions in an interference fit manner.

Furthermore, a vulcanized rubber pad is fixedly installed at the bottom of the flat circular truncated cone, and an annular circular truncated cone integrally formed with the valve body is coaxially arranged at an outlet of the medium inlet channel.

Further, a first sealing ring is arranged between the outer ring of the plug and the valve body.

Furthermore, the upper part of the plug is provided with a cover plate fixedly and hermetically mounted on the valve body, the center of the cover plate is provided with a step through hole, and the inner diameter of the bottom of the step through hole is smaller than the outer diameter of the plug.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

(1) The utility model discloses a traditional check valve structure is constituteed to disk seat and case, when the medium entered from advancing medium channel, jack-up the case under the effect of medium pressure, thereby the intercommunication goes out medium channel, otherwise then the obstruction, realize the non return function, install the solenoid electric control portion that links to each other with the case additional through the top at the disk seat, thereby control valve core reciprocates, when satisfying the check valve non return function, can open the case through the signal of telecommunication effect again, the pressure of letting out medium channel end, realize two-way circulation, simplify the fluid control return circuit.

(2) The utility model discloses make quiet iron core produce magnetism when the solenoid of electromagnetic control portion is electrified to attract to move the iron core and shift up, thereby realize shifting up of case, make the valve port open, the structure is succinct, and control is convenient.

(3) The utility model discloses be equipped with and install the buffering circle of moving the iron core outer lane, avoid moving the iron core and reciprocating the in-process repeatedly and lead to removing the jamming with solenoid wearing and tearing, simultaneously can the noise abatement.

(4) The utility model discloses a recess and end cap form the valve pocket of disk seat, through set up the spring between oblate platform and end cap to realize that case elastic mounting is in the valve pocket, the structure is succinct, and the equipment is convenient, through the spring of changing different elasticity, can realize different valve port opening pressure, satisfy different return circuits design demand, application range is wide.

(5) The utility model discloses all set up annular convex part at end cap and oblate platform, be connected the fixed connection who realizes spring both ends and end cap and oblate platform through the interference of spring and annular convex part, easy dismounting is convenient for change the spring of different elasticity.

(6) The utility model discloses be equipped with vulcanized rubber pad in the bottom of oblate platform, when covering on annular frustum, can improve the shutoff effect of case, play fine cushioning effect simultaneously, vulcanized rubber pad and ordinary sealed pad are compared and can also be improved the joint strength with the oblate platform in addition, are difficult for coming off from the oblate platform, increase of service life.

(7) The utility model discloses be equipped with first sealing washer, further improve the leakproofness of end cap, avoid the medium to reveal.

(8) The utility model discloses a be equipped with the apron of taking the step through-hole and push down the end cap to realize the fixed mounting of end cap, easy dismounting.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:

fig. 1 is a schematic structural view of the valve port of the present invention.

The reference numbers in the figures are:

the valve comprises a valve seat 1, a valve body 1-1, an annular frustum 1-1, a plug 1-2, a cover plate 1-3, a first sealing ring 1-4 and a second sealing ring 1-5;

the electromagnetic control part 2, the electromagnetic coil 2-1, the static iron core 2-2, the movable iron core 2-3 and the buffer ring 2-4;

the valve core 3, the valve rod 3-1, the oblate table 3-2, the spring 3-3 and the vulcanized rubber pad 3-4;

a medium inlet channel 4;

and out of the medium channel 5.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

(example 1)

The electromagnetic check valve shown in fig. 1 comprises a valve seat 1 and an electromagnetic control part 2 fixedly installed at the top of the valve seat 1, wherein a valve cavity is arranged in the valve seat 1, a valve core 3 is elastically installed in the valve cavity, a medium inlet passage 4 and a medium outlet passage 5 which penetrate through the valve seat 1 are respectively arranged at the bottom and the side of the valve cavity, the lower end of the valve core 3 is in contact with the bottom of the valve cavity and covers the medium inlet passage 4, when a medium enters from the medium inlet passage 4, the valve core 3 is jacked upwards under the action of medium pressure so as to be communicated with the medium outlet passage 5, otherwise, the valve core is not communicated, and the check function is realized. The upper end of the valve core 3 penetrates through the valve seat 1 and is fixedly connected with the electromagnetic control part 2, the valve core 3 is driven to move up and down under the action of the electromagnetic control part 2, the check function of the one-way valve is met, meanwhile, the valve core 3 can be opened under the action of an electric signal, the pressure at the end of a medium channel is discharged, two-way circulation is achieved, and a fluid control loop is simplified.

Specifically, the valve seat 1 comprises a valve body 1-1, a groove is formed in the upper end of the valve body 1-1, a plug 1-2 and a cover plate 1-3 are sequentially arranged at the top of the groove, a first sealing ring 1-4 is arranged between the outer ring of the plug 1-2 and the valve body 1-1 in an interference mode, the sealing performance of the plug 1-2 is improved, and medium leakage is avoided. The cover plate 1-3 is fixedly arranged on the valve body 1-1, a second sealing ring 1-5 is arranged between the cover plate 1-3 and the valve body 1-1, a step through hole is formed in the center of the cover plate 1-3, and the inner diameter of the bottom of the step through hole is smaller than the outer diameter of the plug 1-2, so that the plug 1-2 is tightly pressed in the groove, the fixed installation of the plug 1-2 is realized, and the disassembly and assembly are convenient.

The electromagnetic control part 2 comprises an electromagnetic coil 2-1 fixedly arranged at the top of the valve body 1-1, a static iron core 2-2 is fixedly arranged in the center of the electromagnetic coil 2-1, and a movable iron core 2-3 is arranged below the static iron core 2-2. The valve core 3 comprises a valve rod 3-1 and an oblate table 3-2 fixedly connected with the lower end of the valve rod 3-1, the upper end of the valve rod 3-1 penetrates through the plug 1-2 and is connected with the plug 1-2 in a sliding and sealing mode, the movable iron core 2-3 is fixedly installed at the top of the valve rod 3-1, and the upper end of the movable iron core extends into the electromagnetic coil 2-1. A spring 3-3 sleeved on the valve rod 3-1 is arranged between the flat circular table 3-2 and the plug 1-2, annular convex parts are arranged at the upper end of the flat circular table 3-2 and the lower end of the plug 1-2, and two ends of the spring 3-3 are respectively sleeved on the corresponding annular convex parts in an interference fit manner, so that two ends of the spring 3-3 are respectively fixedly connected with the flat circular table 3-2 and the plug 1-2, the valve element 3 is elastically connected, the whole structure is convenient to disassemble and assemble, and the spring 3-3 with different elastic forces can be conveniently replaced to meet the opening pressures of different valve ports.

When the electromagnetic coil 2-1 is not electrified, the medium can only enter from the medium inlet channel 4, overcomes the pressure of the spring 3-3, and jacks up the valve core 3, so that the valve port is opened, the medium enters the valve cavity and flows out from the medium outlet channel 5, and the non-return function is realized. In order to slow down the impact of the valve core 3 falling down after being repeatedly jacked up and the valve body 1-1, the vulcanized rubber gasket 3-4 is fixedly arranged at the bottom of the oblate table 3-2, compared with the common gasket, the connection strength with the oblate table 3-2 can be improved, the valve core is not easy to fall off from the oblate table, and the service life is prolonged. Meanwhile, in order to further improve the plugging effect of the valve core, an annular frustum 1-1-1 which is integrally formed with the valve body 1-1 is coaxially arranged at the outlet of the medium inlet channel 5. When the electromagnetic coil 2-1 is electrified, the static iron core 2-2 generates magnetism to attract the movable iron core 2-3 to drive the valve core 3 to move upwards, so that a valve port is opened, bidirectional conduction is realized, and a fluid control loop is simplified. In order to avoid moving clamping stagnation caused by abrasion between the movable iron core 2-3 and the electromagnetic coil 2-1 in the process of repeatedly moving up and down, a buffer ring 2-4 coaxially and fixedly installed on the movable iron core 2-3 is arranged between the outer wall of the movable iron core 2-3 and the electromagnetic coil 2-1, and meanwhile, noise generated by friction can be reduced.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An electromagnetic check valve, characterized in that: the valve comprises a valve seat (1) and an electromagnetic control part (2) fixedly installed at the top of the valve seat (1), wherein a valve cavity is arranged inside the valve seat (1), a valve core (3) is elastically installed in the valve cavity, a medium inlet channel (4) and a medium outlet channel (5) which penetrate through the valve seat (1) are respectively arranged at the bottom and the side of the valve cavity, the upper end of the valve core (3) penetrates through the valve seat (1) and is fixedly connected with the electromagnetic control part (2), the lower end of the valve core is in contact with the bottom of the valve cavity and covers the medium inlet channel (4), and the electromagnetic control part (2) is suitable for controlling the valve core (3) to move up and down.

2. The electromagnetic check valve according to claim 1, characterized in that: the electromagnetic control part (2) comprises an electromagnetic coil (2-1) fixedly mounted at the top of the valve seat (1), a static iron core (2-2) is fixedly mounted in the center of the electromagnetic coil (2-1), a movable iron core (2-3) fixedly mounted at the upper end of the valve core (3) is arranged below the static iron core (2-2), and the upper end of the movable iron core (2-3) extends to the electromagnetic coil (2-1).

3. The electromagnetic check valve according to claim 2, characterized in that: a buffer ring (2-4) which is coaxially and fixedly arranged on the movable iron core (2-3) is arranged between the outer wall of the movable iron core (2-3) and the electromagnetic coil (2-1).

4. An electromagnetic check valve as defined in claim 1 wherein: the valve seat (1) comprises a valve body (1-1), a groove is formed in the upper end of the valve body (1-1), a plug (1-2) is fixedly mounted at the top of the groove, the valve element (3) comprises a valve rod (3-1) and a flat circular table (3-2) fixedly connected with the lower end of the valve rod (3-1), the upper end of the valve rod (3-1) penetrates through the plug (1-2) and is connected with the plug (1-2) in a sliding and sealing mode, a spring (3-3) sleeved on the valve rod (3-1) is arranged between the flat circular table (3-2) and the plug (1-2), and the two ends of the spring (3-3) are fixedly connected with the flat circular table (3-2) and the plug (1-2) respectively.

5. The electromagnetic check valve according to claim 4, wherein: the upper end of the flat round table (3-2) and the lower end of the plug (1-2) are respectively provided with an annular convex part, and two ends of the spring (3-3) are respectively sleeved on the corresponding annular convex parts in an interference fit manner.

6. The electromagnetic check valve according to claim 4, wherein: vulcanized rubber pads (3-4) are fixedly installed at the bottoms of the flat truncated cones (3-2), and annular truncated cones which are integrally formed with the valve body are coaxially arranged at outlets of the medium inlet channels (4).

7. The electromagnetic check valve according to claim 4, wherein: a first sealing ring (1-4) is arranged between the outer ring of the plug (1-2) and the valve body (1-1).

8. The electromagnetic check valve according to claim 4, wherein: the upper part of the plug (1-2) is provided with a cover plate (1-3) fixedly and hermetically arranged on the valve body (1-1), the center of the cover plate (1-3) is provided with a step through hole, and the inner diameter of the bottom of the step through hole is smaller than the outer diameter of the plug (1-2).