CN218294454U

CN218294454U - Electromagnetic valve with explosion-proof function

Info

Publication number: CN218294454U
Application number: CN202222441466.8U
Authority: CN
Inventors: 杨刚; 杨敏花; 杨学青
Original assignee: Shanghai Qingrun Instrument Technology Co ltd
Current assignee: Shanghai Qingrun Instrument Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-13
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a solenoid valve with explosion-proof function belongs to solenoid valve technical field, including the valve body, the up end middle part of valve body is fixed with the control box, and outer fringe face one side of control box is fixed with the terminal box, has additionally seted up the vacuum layer in the terminal box inner wall, and the lower extreme of terminal box installs the junction box. And the both ends symmetry of the up end of valve body are fixed with the buffer cylinder rather than inside intercommunication, and the top is constructed and is had spacing section of thick bamboo in the buffer cylinder, and the elasticity is pegged graft in the spacing section of thick bamboo and is had the butt-joint pole, and the lower extreme of butt-joint pole extends the lower port of buffer cylinder to be fixed with buffer piston, and the upper end of buffer cylinder is fixed with bee calling organ. This solenoid valve with explosion-proof function, the explosion-proof effect of terminal box is improved in setting up of usable vacuum layer to the setting of cooperation buffer cylinder, bee calling organ can further carry out the pressure buffering to the valve body, also has certain explosion-proof effect of resistance to compression, and can in time warn when the valve body internal pressure is unusual, factor of safety is high.

Description

Electromagnetic valve with explosion-proof function

Technical Field

The utility model belongs to the technical field of the solenoid valve, especially, relate to a solenoid valve with explosion-proof function.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator and is not limited to hydraulic pressure and pneumatics. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

Among the prior art, the solenoid valve is in the use, need have certain explosion-proof function for guaranteeing safety, however, current explosion-proof solenoid valve often only is through the material preparation that adopts explosion-proof property to guarantee explosion-proof effect, its structure is still comparatively traditional, and explosion-proof effect is limited.

Therefore, the electromagnetic valve with the explosion-proof function is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, current explosion-proof solenoid valve is generally through guaranteeing explosion-proof effect by the preparation material, leads to the limited problem of explosion-proof effect, and the solenoid valve with explosion-proof function that provides.

In order to realize the purpose, the utility model adopts the following technical scheme:

an electromagnetic valve with an explosion-proof function comprises a valve body, wherein a control box is fixed in the middle of the upper end face of the valve body, a junction box is fixed on one side of the outer edge face of the control box, a vacuum layer is additionally arranged in the inner wall of the junction box, and a junction tube is installed at the lower end of the junction box;

the valve body is characterized in that two ends of the upper end face of the valve body are symmetrically fixed with buffer cylinders communicated with the interior of the valve body, a limiting cylinder is constructed at the top of the interior of the buffer cylinder, abutting rods are elastically inserted into the limiting cylinder, the lower ends of the abutting rods extend to the lower ports of the buffer cylinder and are fixed with buffer pistons, a buzzer is fixed at the upper end of the buffer cylinder, the buzzer is electrically connected with a control switch, and the control switch is fixed at the top of the interior of the limiting cylinder and is used for abutting cooperation of the top ends of the abutting rods.

Through above-mentioned technical scheme, the explosion-proof effect of terminal box is improved in setting up of usable vacuum layer to the setting of cooperation buffer cylinder, bee calling organ can further carry out the pressure buffering to the valve body, also has certain explosion-proof effect of resistance to compression, and can in time warn when the valve body internal pressure is unusual, factor of safety is high.

As a further preferred scheme, electromagnets are installed around the inner periphery of the control box, a cavity is formed in the middle of the control box, a movable ejector rod is constructed at the top of the cavity, a movable iron core is movably sleeved at the lower end of the movable ejector rod, and a valve rod is elastically installed in the movable iron core.

Through the technical scheme, the electromagnet can be used for being in electromagnetic fit with the valve rod to form electromagnetic control.

As a further preferred scheme, a movable iron core spring is arranged in the movable iron core, one end of the movable iron core spring is connected with the movable ejector rod, and the other end of the movable iron core spring is connected with the top end of the valve rod.

Through above-mentioned technical scheme, usable movable iron core spring comes to install valve rod elasticity in the control box.

As a further preferable scheme, the lower end of the valve rod extends into the valve body, and a valve core piston for isolating the valve body is fixed on the valve rod.

Through the technical scheme, the valve rod utilizes the valve core piston to control the opening and closing of the valve body.

As a further preferable scheme, a sealing piece is fixed on the lower end face of the valve core piston, a valve core spring is fixed on the upper end face of the valve core piston, and the valve core spring is connected with the top face of the middle part in the valve body.

Through above-mentioned technical scheme, the case spring can form the cooperation with the electromagnetic control of valve rod, controls two kinds of moving directions of valve rod respectively.

As a further preferable scheme, two ends of the valve body are symmetrically fixed with flange plates.

Through above-mentioned technical scheme, the ring flange can insert the valve body between various pipelines.

As a further preferred scheme, a buffer spring is sleeved on the abutting rod, one end of the buffer spring is connected with the lower end of the buffer cylinder, and the other end of the buffer spring is connected with the upper end face of the buffer piston.

Through above-mentioned technical scheme, usable buffer spring will come to install butt pole elasticity in buffer piston.

To sum up, the utility model discloses a technological effect and advantage:

this solenoid valve with explosion-proof function benefits from the setting on vacuum layer, through seting up extra vacuum layer in the inner wall of terminal box, has not only formed the buffer space when exploding, has certain thermal-insulated effect moreover, can avoid external temperature too high and lead to inside to heat up until reaching the problem of ignition to a certain extent, is favorable to guaranteeing the normal work of isolated flammable and explosive component in the terminal box.

This solenoid valve with explosion-proof function, benefit from the setting of buffer cylinder, through the butt pole, buffer piston and buffer spring's cooperation makes the buffer cylinder can carry out the pressure buffering of certain degree to the both ends position of valve body, make the pressure in the twinkling of an eye of medium when passing through the valve body obtain the buffering, do benefit to the life of extension valve body, and the spacing section of thick bamboo of deuterogamying, bee calling organ and control switch's cooperation, can be when pressure is unusual, start bee calling organ through butt pole butt control switch, thereby reach the effect of reporting to the police, in order to guarantee that the staff can in time discover unusually and handle.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a valve body; 101. a flange plate; 2. a control box; 3. a junction box; 301. a vacuum layer; 4. a wire connecting pipe; 5. an electromagnet; 6. a movable ejector rod; 7. a movable iron core; 8. a valve stem; 9. a movable iron core spring; 10. a spool piston; 11. a seal member; 12. a spool spring; 13. a buffer cylinder; 1301. a limiting cylinder; 14. a buzzer; 1401. a control switch; 15. abutting against the connecting rod; 16. a cushion piston; 17. a buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, 2 and 3, the electromagnetic valve with an explosion-proof function comprises a valve body 1, wherein flanges 101 are symmetrically fixed at two ends of the valve body 1, and the flanges 101 can be connected among various pipelines. And the up end middle part of valve body 1 is fixed with control box 2, outer fringe face one side of control box 2 is fixed with terminal box 3, vacuum layer 301 has additionally been seted up in terminal box 3 inner wall, wherein can be used to accomodate wiring circuit in the terminal box 3, and the part causes the component of explosion easily, in order to reach preliminary explosion-proof effect, and terminal box 3 itself adopts explosion-proof material preparation, and vacuum layer 301 in the cooperation terminal box 3 inner wall, buffer space when not only having formed the explosion, and certain thermal-insulated effect has, can avoid external temperature too high and lead to inside intensification until reaching the problem of ignition to a certain extent, be favorable to guaranteeing the normal work of isolated component in the terminal box 3.

Meanwhile, the lower end of the junction box 3 is provided with a wire connecting tube 4, and the wire connecting tube 4 can be used for external lines.

Referring to fig. 2, the periphery is around installing electro-magnet 5 in the control box 2, and the middle part is equipped with the cavity in the control box 2, and the top structure has movable ejector pin 6 in the cavity, and the lower extreme activity cover of movable ejector pin 6 is equipped with movable iron core 7, is provided with movable iron core spring 9 in the movable iron core 7, and movable iron core spring 9's one end is connected with movable ejector pin 6, and the other end is connected with valve rod 8. The top end of the valve rod 8 is inserted into the movable iron core 7, the lower end of the valve rod 8 extends into the valve body 1 and is fixed with a valve core piston 10 for separating the valve body 1, the lower end face of the valve core piston 10 is fixed with a sealing piece 11, the upper end face of the valve core piston 10 is fixed with a valve core spring 12, and the valve core spring 12 is connected with the top face of the middle part in the valve body 1. During specific use, the electromagnet 5 is electrified to control the valve rod 8 to lift, so that the valve body 1 is controlled to open and close by the valve core piston 10 and the sealing element 11, and the control principle of the electromagnet 5 on the valve rod 8 is the existing electromagnetic control technology, which is a mature means in the prior art, and therefore, the redundant description is not repeated here.

Referring to fig. 1, 2 and 4, two ends of the upper end surface of the valve body 1 are symmetrically fixed with a buffer cylinder 13 communicated with the inside of the valve body, a limit cylinder 1301 is constructed at the top inside the buffer cylinder 13, a butt rod 15 is elastically inserted into the limit cylinder 1301, the lower end of the butt rod 15 extends to the lower port of the buffer cylinder 13, and is fixed with a buffer piston 16, a buzzer 14 is fixed at the upper end of the buffer cylinder 13, the buzzer 14 is electrically connected with a control switch 1401, the control switch 1401 is fixed at the top inside the limit cylinder 1301, and the top end of the butt rod 15 is in butt fit, so that when the pressure inside the valve body 1 is too large, the butt rod 15 can be abutted to the control switch 1401, and warning is performed through the buzzer 14.

In specific implementation, the abutting rod 15 is sleeved with a buffer spring 17, one end of the buffer spring 17 is connected with the lower end of the buffer cylinder 13, and the other end of the buffer spring 17 is connected with the upper end face of the buffer piston 16, so that the abutting rod 15 is elastically installed in the buffer piston 16.

The working principle is as follows: this solenoid valve with explosion-proof function, during the use, terminal box 3 can order about valve rod 8 through the cooperation of electro-magnet 5, movable iron core 7 and valve rod 8 and go up and down to rise or fall case piston 10 and sealing member 11, can accomplish the opening and closing control to valve body 1.

And can be used to accomodate wiring circuit in the terminal box 3 to and the part causes the component of explosion easily, in order to reach preliminary explosion-proof effect, and adopt explosion-proof material through terminal box 3 itself, and vacuum layer 301 in the 3 inner walls of terminal box, buffer space when not only having formed the explosion, and certain thermal-insulated effect has, can avoid external temperature too high and lead to inside intensification until reaching the problem of ignition point to a certain extent, be favorable to guaranteeing the normal work of isolated component in the terminal box 3.

Meanwhile, in the process of using the valve body 1, media flow through the valve body 1, the buffer cylinders 13 at two ends of the valve body 1 can provide buffer space, and the effect of buffering the media is achieved by the aid of the butting rod 15, the buffer piston 16 and the buffer spring 17, so that damage to the valve body 1 caused by overlarge instantaneous pressure of the media when the media pass through the valve body 1 is avoided, the service life of the valve body 1 is prolonged, when the pressure of the media in the valve body 1 is abnormal, the butting rod 15 and the buffer piston 16 can be pushed to continuously move towards the top of the buffer cylinder 13 until the butting rod 15 butts against the control switch 1401, so that the buzzer 14 is started, an alarm is realized, timely treatment is reminded for workers, and the safety factor is further improved.

The above, only be the embodiment of the preferred 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, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. An electromagnetic valve with an explosion-proof function comprises a valve body (1), wherein a control box (2) is fixed in the middle of the upper end face of the valve body (1), and is characterized in that a junction box (3) is fixed on one side of the outer edge face of the control box (2), a vacuum layer (301) is additionally arranged in the inner wall of the junction box (3), and a wiring pipe (4) is installed at the lower end of the junction box (3);

the valve body (1) is characterized in that two ends of the upper end face of the valve body (1) are symmetrically fixed with buffer cylinders (13) communicated with the interior of the valve body, a limiting cylinder (1301) is constructed at the top of the interior of the buffer cylinder (13), a butt rod (15) is elastically inserted into the limiting cylinder (1301), the lower ends of the butt rod (15) extend to the lower port of the buffer cylinder (13) and are fixed with buffer pistons (16), a buzzer (14) is fixed at the upper end of the buffer cylinder (13), the buzzer (14) is electrically connected with a control switch (1401), and the control switch (1401) is fixed at the top of the interior of the limiting cylinder (1301) and is used for the butt cooperation of the top ends of the butt rod (15).

2. The electromagnetic valve with the explosion-proof function according to claim 1, wherein the electromagnet (5) is installed around the inner periphery and the outer periphery of the control box (2), a cavity is arranged in the middle of the control box (2), a movable ejector rod (6) is constructed at the top of the cavity, a movable iron core (7) is movably sleeved at the lower end of the movable ejector rod (6), and a valve rod (8) is elastically installed in the movable iron core (7).

3. The electromagnetic valve with the explosion-proof function according to claim 2, characterized in that a movable iron core spring (9) is arranged in the movable iron core (7), one end of the movable iron core spring (9) is connected with the movable ejector rod (6), and the other end is connected with the top end of the valve rod (8).

4. An explosion-proof solenoid valve according to claim 2, characterized in that the lower end of the valve rod (8) extends into the valve body (1) and is fixed with a spool piston (10) for isolating the valve body (1).

5. The electromagnetic valve with the explosion-proof function according to claim 4, characterized in that a sealing element (11) is fixed on the lower end surface of the valve core piston (10), a valve core spring (12) is fixed on the upper end surface of the valve core piston (10), and the valve core spring (12) is connected with the top surface of the middle part in the valve body (1).

6. An electromagnetic valve with explosion-proof function according to claim 1, characterized in that flanges (101) are symmetrically fixed at two ends of the valve body (1).

7. The electromagnetic valve with the explosion-proof function according to claim 1, characterized in that a buffer spring (17) is sleeved on the abutting rod (15), one end of the buffer spring (17) is connected with the lower end of the buffer cylinder (13), and the other end is connected with the upper end face of the buffer piston (16).