CN210196471U

CN210196471U - Non-pressure normally closed electromagnetic valve

Info

Publication number: CN210196471U
Application number: CN201921222666.6U
Authority: CN
Inventors: Junqi Wu; 吴军旗
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-03-27
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a non-pressure normally closed solenoid valve, which relates to the technical field of solenoid valves and comprises a lower shell and a coil shell arranged above the lower shell, wherein the inner side of the coil shell is provided with a solenoid coil, the upper end of the lower shell is provided with a valve core shell, the bottom end of the valve core shell is fixedly provided with a slide block, the bottom end of the slide block is fixedly provided with a seal head connecting rod, and the bottom end of the seal head connecting rod is provided with a nipple seal head. The use reliability of the normally closed electromagnetic valve is improved.

Description

Non-pressure normally closed electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field specifically is a non-pressure normally closed solenoid valve.

Background

Electromagnetic valves (Electromagnetic valves) are electromagnetically controlled industrial devices, are basic automation elements for controlling fluids, belong to actuators, and are used in industrial control systems to adjust the direction, flow rate, speed and other parameters of media. The electromagnetic valve can be matched with different circuits to realize expected control, the control precision and flexibility can be ensured, and the normally closed electromagnetic valve is suitable for taking water or other gas and liquid as working media and can automatically control or remotely control the on-off of working media pipelines such as air, water, oil liquid and the like.

However, the conventional normally closed solenoid valve has a complex structure due to power-off, closing and power-on opening, and delays the reaction action, so that inconvenience is brought to the use process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-pressure normally closed solenoid valve to it is comparatively complicated owing to the closed circular telegram opening structure of outage to provide traditional normally closed solenoid valve in solving above-mentioned background art, and the reaction action delays, leads to bringing inconvenience in the use, and traditional normally closed solenoid valve leakproofness is relatively poor, has reduced normally closed solenoid valve's the problem of use reliability.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a non-pressure normally closed solenoid valve, includes casing and the coil shell of setting casing top down, the inboard of coil shell is provided with solenoid, the upper end of casing is provided with the case casing down, the bottom mounting of case casing is provided with the slider, the bottom mounting of slider is provided with the head connecting rod, the bottom of head connecting rod is provided with the nipple head, the fastening screw has been seted up on the surface of nipple head, the bottom surface position department of head connecting rod has seted up the fastening thread groove, fastening thread groove and the equal threaded connection of fastening screw have head fastening screw, be provided with the gasket between nipple head and the head fastening screw, the fixed return spring that is provided with between case casing and the solenoid, the fixed water inlet that is provided with in side position department of casing down.

As a further aspect of the present invention: the outer side surface of the upper end of the valve core shell is fixedly provided with a connecting seat, and the valve core shell is in threaded connection with an adjusting bolt.

As a further aspect of the present invention: the gasket is characterized in that the through hole is formed in the surface position of the gasket, the diameter size of the through hole is matched with that of the seal head fastening screw, and the seal head fastening screw penetrates through the through hole in the gasket.

As a further aspect of the present invention: and the surface positions of the valve core shell and the lower shell are respectively provided with an assembling screw hole, and the assembling screw holes are in threaded connection with assembling screws.

As a further aspect of the present invention: and the upper end of the coil shell is in threaded connection with a sealing screw.

As a further aspect of the present invention: and both sides of the upper ends of the coil shell and the electromagnetic coil are in threaded connection with coil shell screws.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up adjusting bolt, connecting seat, slider, gasket, head connecting rod, return spring, solenoid, head fastening screw, fastening spiral shell groove, fastening screw, nipple head and opening, this normally closed solenoid valve is pressureless type, and the outage is closed, and the circular telegram is opened simple structure and is moved swiftly in a flexible way, and convenient to use more possesses good leakproofness, prevents that normally closed solenoid valve from taking place to leak in the use, has improved normally closed solenoid valve's use reliability.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a non-pressure normally closed solenoid valve;

FIG. 2 is a schematic structural diagram of part A of a non-pressure normally closed solenoid valve;

fig. 3 is a schematic perspective view of a non-pressure normally closed solenoid valve.

In the figure: 1. a coil housing screw; 2. a closing screw; 3. a coil housing; 4. adjusting the bolt; 5. a connecting seat; 6. assembling screws; 7. a slider; 8. a gasket; 9. assembling a screw hole; 10. a water inlet; 11. a lower housing; 12. a head connecting rod; 13. a valve core housing; 14. a return spring; 15. an electromagnetic coil; 16. a seal head fastening screw; 17. fastening a screw groove; 18. fastening screw holes; 19. sealing the nipple; 20. and (6) a port.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a non-pressure normally closed solenoid valve, including lower housing 11 and coil housing 3 disposed above lower housing 11, the inboard of coil housing 3 is provided with electromagnetic coil 15, the upper end of lower housing 11 is provided with valve core housing 13, the bottom mounting of valve core housing 13 is provided with slider 7, the bottom mounting of slider 7 is provided with head connecting rod 12, the bottom of head connecting rod 12 is provided with nipple socket 19, fastening screw 18 has been seted up on the surface of nipple socket 19, fastening screw 17 has been seted up in the bottom surface position department of head connecting rod 12, fastening screw 17 and fastening screw 18 all have threaded connection to have head fastening screw 16, be provided with gasket 8 between nipple socket 19 and head fastening screw 16, fixedly be provided with return spring 14 between valve core housing 13 and electromagnetic coil 15, the fixed water inlet 10 that is provided with in the side position department of lower housing 11.

In fig. 1: the outer side surface of the upper end of the valve core shell 13 is fixedly provided with a connecting seat 5, and the valve core shell 13 is in threaded connection with an adjusting bolt 4, so that the purpose of conveniently adjusting the pressure screw is achieved.

In fig. 3: opening 20 has been seted up to gasket 8's surface position department, and opening 20's diameter size and head fastening screw 16's diameter size looks adaptation, and head fastening screw 16 runs through in gasket 8 through opening 20, has reached the purpose that improves the leakproofness between head fastening screw 16 and nipple head 19.

In fig. 1: the surface positions of the valve core shell 13 and the lower shell 11 are provided with assembly screw holes 9, the assembly screw holes 9 are in threaded connection with assembly screws 6, and the purpose of mounting and dismounting the valve core shell 13 on the lower shell 11 is achieved.

In fig. 1 and 2: the upper end of the coil shell 3 is connected with a sealing screw 2 in a threaded manner, so that the aim of preventing leakage is fulfilled.

In fig. 1: both sides of the upper ends of the coil housing 3 and the electromagnetic coil 15 are in threaded connection with coil housing screws 1, so that the purpose of conveniently fixing the electromagnetic coil 15 on the coil housing 3 is achieved.

The utility model discloses a theory of operation is: in the process of using the normally closed electromagnetic valve, a return spring 14 is fixedly arranged between a valve core shell 13 and an electromagnetic coil 15, the return spring 14 is utilized to generate elastic force generated by deformation so as to drive a sliding block 7 to perform reset motion, an end socket connecting rod 12 is fixedly arranged at the bottom end of the sliding block 7, a nipple end socket 19 is arranged at the bottom end of the end socket connecting rod 12, the sliding block 7 can drive the nipple end socket 19 to move up and down, a gasket 8 is arranged between the nipple end socket 19 and an end socket fastening screw 16, the end socket fastening screw 16 penetrates through the gasket 8 through a through hole 20, the sealing performance between the end socket fastening screw 16 and the nipple end socket 19 is improved, a sealing screw 2 is connected to the upper end of a coil shell 3 in a threaded.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A non-pressure normally closed electromagnetic valve comprises a lower shell (11) and a coil shell (3) arranged above the lower shell (11), and is characterized in that an electromagnetic coil (15) is arranged on the inner side of the coil shell (3), a valve core shell (13) is arranged at the upper end of the lower shell (11), a sliding block (7) is fixedly arranged at the bottom end of the valve core shell (13), a seal head connecting rod (12) is fixedly arranged at the bottom end of the sliding block (7), a nipple seal head (19) is arranged at the bottom end of the seal head connecting rod (12), a fastening screw hole (18) is formed in the surface of the nipple seal head (19), a fastening screw groove (17) is formed in the bottom end surface position of the seal head connecting rod (12), seal head fastening screws (16) are in threaded connection with the fastening screw grooves (17) and the fastening screw holes (18), and a gasket (8) is arranged between the nipple seal head sealing head (19), a return spring (14) is fixedly arranged between the valve core shell (13) and the electromagnetic coil (15), and a water inlet (10) is fixedly arranged at the side position of the lower shell (11).

2. A pressureless normally closed solenoid valve according to claim 1, wherein the valve core housing (13) is fixedly provided with a connecting seat (5) on the outer surface of the upper end, and the valve core housing (13) is in threaded connection with an adjusting bolt (4).

3. A pressureless normally closed solenoid valve according to claim 1, wherein a through opening (20) is opened at a surface position of the gasket (8), a diameter size of the through opening (20) is matched with a diameter size of the head fastening screw (16), and the head fastening screw (16) penetrates through the gasket (8) through the through opening (20).

4. A pressureless normally closed solenoid valve according to claim 1, wherein the valve core housing (13) and the lower housing (11) are provided with assembly screw holes (9) at the surface positions, and the assembly screw holes (9) are connected with assembly screws (6) by screw threads.

5. A pressureless normally closed solenoid valve according to claim 1, characterized in that a closing screw (2) is screwed in the upper end position of the coil housing (3).

6. A pressureless normally closed solenoid valve according to claim 1, wherein coil housing screws (1) are threadedly connected to both sides of the upper ends of the coil housing (3) and the electromagnetic coil (15).