CN210088092U - Explosion-proof electromagnetic valve - Google Patents

Abstract

The utility model belongs to the technical field of the solenoid valve, especially, an explosion-proof solenoid valve, including the solenoid valve body, the both sides of solenoid valve body are equipped with import pipe and outlet pipe respectively, and the top fixed mounting of import pipe has the fixed column, has seted up the bottom on the fixed column and has been the fixed chamber of open-ended, has seted up the through-hole on the top inner wall in fixed chamber, and fixed intracavity is equipped with the movable block, and fixed cover is equipped with the seal cover on the movable block, and the inner wall sliding seal who seals cover and fixed chamber is connected, and the bottom of seal cover contacts with the top of import pipe, and the top fixed mounting of movable block has the. The utility model discloses simple structure, economical and practical is convenient for carry out the pressure release to the great pressure that the fluid produced in pipeline, avoids causing pipeline to burst, protects the solenoid valve body, can also adjust the elasticity of two springs simultaneously, increases or reduces uninstallation pressure, simple operation.

Description

An explosion-proof solenoid valve

technical field

The utility model relates to the technical field of solenoid valves, in particular to an explosion-proof solenoid valve.

Background technique

Solenoid valve is an industrial equipment controlled by electromagnetic, which is an automatic basic component used to control fluid. It belongs to actuator, not limited to hydraulic and pneumatic. It is used in industrial control system to adjust the direction, flow, speed and other parameters of the medium. The solenoid valve can cooperate with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. The application field of the solenoid valve is very wide. Any gas or liquid flow path can be controlled by the solenoid valve. Mainly, a solenoid valve is set at the channel port of the flow pipe fitting, and the valve stem is raised and lowered when the solenoid valve is energized to control the flow path on and off.

However, in the prior art, when a non-toxic and non-corrosive fluid is transported by a pipeline in a factory or a residential area, continuous work is required. In the continuous flow in the pipeline, the pressure generated in the pipeline is too large, which is easy to cause the pipeline to burst, and also affects the service life of the solenoid valve, which will affect the subsequent transportation work. For this reason, we propose an explosion-proof solenoid valve. used to solve the above problems.

Utility model content

The purpose of the utility model is to propose an explosion-proof solenoid valve in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an explosion-proof solenoid valve, comprising a solenoid valve body, two sides of the solenoid valve body are respectively provided with an inlet pipe and an outlet pipe, and the top of the inlet pipe is fixedly installed with a fixed The fixed column is provided with a fixed cavity with an opening at the bottom, a through hole is opened on the top inner wall of the fixed cavity, a movable block is arranged in the fixed cavity, and a fixed sleeve is provided on the movable block with a sealing sleeve, and the sealing sleeve and the fixed cavity are provided with a sealing sleeve. The inner wall is slidably sealed and connected, the bottom of the sealing sleeve is in contact with the top of the inlet pipe, the movable rod is fixedly installed on the top of the movable block, the top of the movable rod penetrates the through hole, and the horizontal plate is fixedly installed, and the inner wall of the fixed cavity is provided with The pressure relief hole above the movable block, the top inner wall of the inlet pipe is provided with a liquid outlet hole, the top of the inlet pipe is fixedly installed with two support rods, the two support rods are located on both sides of the fixed column, and the top of the two support rods There are sliding grooves, and sliding rods are installed in the two sliding grooves. The top of the sliding rods extend out of the sliding grooves and are fixedly connected with the bottom of the horizontal plate. The pressure plate above the support rod, the bottom of the pressure plate is fixedly installed with a spring sleeved on the sliding rod, the two sliding rods are fixedly sleeved with a positioning plate located between the pressure plate and the support rod, and the end of the spring away from the pressure plate is fixedly connected On the top of the positioning plate, two screw rods are fixedly installed on the top of the inlet pipe, and the two pressure plates are respectively slidably sleeved on the two screw rods.

Preferably, a nut is threadedly sleeved on the two screw rods, the nut is located above the pressing plate, and the bottom of the nut is in contact with the top of the pressing plate.

Preferably, the number of the pressure relief holes is multiple, the plurality of pressure relief holes are arranged obliquely, and the plurality of pressure relief holes are arranged in a ring at equal intervals.

Preferably, the number of the liquid outlet holes is multiple, and the plurality of liquid outlet holes are arranged at equal intervals, and the plurality of liquid outlet holes are all communicated with the fixing cavity.

Preferably, a handle is fixedly installed on the top of the horizontal plate.

Preferably, limit slots are provided on both inner walls of the same chute, limit blocks are fixedly installed on both sides of the slide bar, and the limit blocks are slidably installed in the limit slots.

Compared with the prior art, the beneficial effects of the present utility model are as follows: firstly, the device passes through the solenoid valve body, the inlet pipe, the outlet pipe, the fixed column, the fixed cavity, the through hole, the movable block, the sealing sleeve, the movable rod, the horizontal plate. , pressure relief hole, liquid outlet hole, support rod, chute, sliding rod, pressure plate, spring, screw rod, nut and positioning plate, when the solenoid valve body closes the conveying pipeline, when the pressure in the inlet pipe reaches a certain range When the fluid in the inlet pipe flows into the fixed cavity through the liquid outlet hole, and pushes the sealing sleeve and the movable block to slide upward, the movable block pushes the movable rod and the horizontal plate to move upward, the horizontal plate drives the two sliding rods to slide upward, and the sliding rod drives the positioning The plate moves upward, and the spring is compressed to generate elastic force. When the sealing sleeve and the movable block slide to the top of the pressure relief hole, the fluid flows out of the fixed column through multiple pressure relief holes, and the pressure generated in the inlet pipe is unloaded. After the pressure is unloaded, under the elastic force of the two springs, the two positioning plates and the corresponding sliding rods are pushed down. Slide down to the bottom of the pressure relief hole, return to the original position, after the pressure relief is completed, turn the two nuts clockwise, the nuts rotate upward on the screw rod, the spring pushes the pressure plate to slide upward, the elastic force generated by the spring is reduced, and the pipeline bears In the same way, by turning the two nuts counterclockwise, the spring will be compressed more, resulting in greater elastic force, and the pressure in the conveying pipeline will increase, so that the conveying pipeline can be adjusted according to the different medium conveyed in the conveying pipeline. The internal pressure value can be adjusted;

The utility model has a simple structure, is economical and practical, is convenient for releasing the large pressure generated by the fluid in the conveying pipeline, avoids the bursting of the conveying pipeline, protects the solenoid valve body, and can adjust the elastic force of the two springs to increase the Increase or decrease the unloading pressure, easy to operate.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the front view of the utility model;

FIG. 2 is an enlarged schematic structural diagram of part A in FIG. 1 .

In the figure: 1, solenoid valve body; 2, inlet pipe; 3, outlet pipe; 4, fixed column; 5, fixed cavity; 6, through hole; 7, movable block; 8, sealing sleeve; 9, movable rod; 10 , horizontal plate; 11, pressure relief hole; 12, liquid outlet hole; 13, support rod; 14, chute; 15, sliding rod; 16, pressure plate; 17, spring; 18, screw rod; 19, nut; 20, Positioning plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, the present utility model provides a technical solution: an explosion-proof solenoid valve, comprising a solenoid valve body 1, and two sides of the solenoid valve body 1 are respectively provided with an inlet pipe 2 and an outlet pipe 3. A fixed column 4 is fixedly installed on the top, the fixed column 4 is provided with a fixed cavity 5 with an opening at the bottom, a through hole 6 is opened on the top inner wall of the fixed cavity 5, and a movable block 7 is arranged in the fixed cavity 5, and the movable block 7 is fixed on A sealing sleeve 8 is sleeved, and the sealing sleeve 8 is slidably and sealedly connected to the inner wall of the fixed cavity 5. The bottom of the sealing sleeve 8 is in contact with the top of the inlet pipe 2. The top of the movable block 7 is fixedly installed with a movable rod 9. The movable rod 9 The top of the inlet pipe 2 penetrates through the through hole 6, and is fixedly installed with a horizontal plate 10. The inner wall of the fixed cavity 5 is provided with a pressure relief hole 11 located above the movable block 7, and the top inner wall of the inlet pipe 2 is provided with a liquid outlet hole 12. The inlet pipe Two support rods 13 are fixedly installed on the top of 2, and the two support rods 13 are respectively located on both sides of the fixed column 4. The tops of the two support rods 13 are provided with sliding grooves 14, and two sliding grooves 14 are slidably installed inside. The sliding rod 15, the top of the sliding rod 15 extends to the outside of the chute 14, and is fixedly connected with the bottom of the horizontal plate 10, the two sliding rods 15 are slidably sleeved with a pressure plate 16 located above the corresponding support rod 13, and the pressure plate 16 A spring 17 sleeved on the slide bar 15 is fixedly installed at the bottom of the slid Connected to the top of the positioning plate 20, the top of the inlet pipe 2 is fixedly installed with two screw rods 18, and the two pressure plates 16 are respectively slidably sleeved on the two screw rods 18;

A nut 19 is threadedly sleeved on the two screw rods 18, the nut 19 is located above the pressure plate 16, the bottom of the nut 19 is in contact with the top of the pressure plate 16, the number of pressure relief holes 11 is multiple, and the plurality of pressure relief holes 11 They are all arranged at an incline, and the plurality of pressure relief holes 11 are arranged in a ring at equal intervals. The number of liquid outlet holes 12 is multiple, and the plurality of liquid outlet holes 12 are arranged at equal intervals, and the plurality of liquid outlet holes 12 are fixed with The cavity 5 is connected, the top of the horizontal plate 10 is fixedly installed with a handle, the inner walls on both sides of the same chute 14 are provided with limit grooves, and the limit blocks are fixedly installed on both sides of the slide bar 15, and the limit blocks slide Installed in the limit groove, the device passes through the solenoid valve body 1, the inlet pipe 2, the outlet pipe 3, the fixed column 4, the fixed cavity 5, the through hole 6, the movable block 7, the sealing sleeve 8, the movable rod 9, and the horizontal plate 10. , the pressure relief hole 11, the liquid outlet hole 12, the support rod 13, the chute 14, the sliding rod 15, the pressure plate 16, the spring 17, the screw rod 18, the nut 19 and the positioning plate 20 are matched, and the solenoid valve body 1 will carry out the conveying pipeline. When closed, when the pressure in the inlet pipe 2 reaches a certain range, the fluid in the inlet pipe 2 flows into the fixed cavity 5 through the liquid outlet 12, and pushes the sealing sleeve 8 and the movable block 7 to slide upward, and the movable block 7 pushes the movable rod 9 and the horizontal plate 10 move upward, the horizontal plate 10 drives the two sliding rods 15 to slide upward, the sliding rod 15 drives the positioning plate 20 to move upward, the spring 17 is pressed to generate elastic force, when the sealing sleeve 8 and the movable block 7 slide to the pressure relief hole 11, the fluid flows out of the fixed column 4 through a plurality of pressure relief holes 11, and unloads the pressure generated in the inlet pipe 2. When the generated pressure is unloaded, under the elastic force of the two springs 17, the two are pushed. Each positioning plate 20 and the corresponding sliding rod 15 slide down, the sliding rod 15 drives the horizontal plate 10 and the movable rod 9 to move downward, and the movable rod 9 drives the movable block 7 and the sealing sleeve 8 to slide down in the fixed cavity 5 to the pressure relief hole Below 11, return to the original position, after the pressure relief is completed, turn the two nuts 19 clockwise, the nuts 19 rotate upward on the screw 18, the spring 17 pushes the pressure plate 16 to slide upward, the elastic force generated by the spring 17 decreases, and the inside of the conveying pipeline In the same way, when the two nuts 19 are rotated counterclockwise, the spring 17 is compressed more, resulting in a greater elastic force, and the pressure in the conveying pipeline increases, so that according to the different media conveyed in the conveying pipeline, To adjust the pressure value in the conveying pipeline, the utility model has a simple structure, is economical and practical, is convenient for releasing the pressure generated by the fluid in the conveying pipeline, avoids the bursting of the conveying pipeline, and protects the solenoid valve body 1 At the same time, the elastic force of the two springs 17 can be adjusted to increase or decrease the unloading pressure, and the operation is convenient.

Working principle: The stiffness coefficient of the two springs 17 is 15-30N/m, the solenoid valve body 1 is connected with the conveying pipeline, and when the solenoid valve body 1 is used to close the conveying pipeline, when the pressure in the inlet pipe 2 reaches a certain range When the fluid in the inlet pipe 2 flows into the fixed cavity 5 through the plurality of liquid outlet holes 12, the pressure generated by the fluid will push the sealing sleeve 8 and the movable block 7 to slide upward, and the movable block 7 pushes the movable rod 9 and the horizontal plate 10 to move upward. , the horizontal plate 10 drives the two sliding rods 15 to slide upward, the sliding rod 15 drives the limit block to slide up in the limit groove, the sliding rod 15 drives the positioning plate 20 to move upward, and the spring 17 is compressed and deformed to generate elastic force, when the fluid pushes When the sealing sleeve 8 and the movable block 7 slide to the top of the plurality of pressure relief holes 11 , the fluid flows out of the fixed column 4 through the plurality of pressure relief holes 11 , thereby unloading the pressure generated in the inlet pipe 2 and avoiding the pressure inside the inlet pipe 2 . When the pressure generated is unloaded, under the elastic force of the two springs 17, the two sliding rods 15 are pushed down, and the sliding rods 15 drive the horizontal plate 10 and the movable rod 9 downward. Move, the movable rod 9 drives the movable block 7 and the sealing sleeve 8 to slide down in the fixed cavity 5 to the bottom of the plurality of pressure relief holes 11, and return to the original position, so as to prevent the fluid from flowing out. Adjust the pressure value in the conveying pipeline, turn the two nuts 19 clockwise, the nuts 19 rotate upward on the screw rod 18, the spring 17 pushes the pressure plate 16 to slide upward, the elastic force generated by the spring 17 is reduced, and the pressure in the conveying pipeline is reduced. The pressure decreases to reduce the unloading pressure. Similarly, turn the two nuts 19 counterclockwise, the nut 19 rotates down on the screw 18, the nut 19 pushes the pressure plate 16 to slide down, and the spring 17 is more compressed, resulting in more Large elastic force increases the pressure in the conveying pipeline and increases the unloading pressure.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. An explosion-proof solenoid valve, comprising a solenoid valve body (1), characterized in that: both sides of the solenoid valve body (1) are respectively provided with an inlet pipe (2) and an outlet pipe (3), the inlet pipe (2) ) is fixedly installed with a fixing column (4) at the top, the fixing column (4) is provided with a fixing cavity (5) with an opening at the bottom, a through hole (6) is opened on the top inner wall of the fixing cavity (5), and the fixing cavity ( 5) A movable block (7) is provided inside, and a sealing sleeve (8) is fixed on the movable block (7), and the sealing sleeve (8) is slidably and sealedly connected with the inner wall of the fixed cavity (5). The sealing sleeve (8) The bottom of the movable block (7) is in contact with the top of the inlet pipe (2), a movable rod (9) is fixedly installed on the top of the movable block (7), the top of the movable rod (9) penetrates through the through hole (6), and a horizontal plate ( 10), the inner wall of the fixed cavity (5) is provided with a pressure relief hole (11) located above the movable block (7), the top inner wall of the inlet pipe (2) is provided with a liquid outlet hole (12), the inlet pipe (2) ) are fixedly installed with two support rods (13) on the top of the ), the two support rods (13) are respectively located on both sides of the fixed column (4), and the tops of the two support rods (13) are provided with chute (14), A sliding rod (15) is slidably installed in the two sliding grooves (14), and the top end of the sliding rod (15) extends to the outside of the sliding groove (14) and is fixedly connected with the bottom of the horizontal plate (10). The two sliding rods A pressure plate (16) located above the corresponding support rod (13) is slidably sleeved on the upper part (15), and the bottom of the pressure plate (16) is fixedly installed with a spring (17) sleeved on the sliding rod (15), two A positioning plate (20) located between the pressure plate (16) and the support rod (13) is fixedly sleeved on the sliding rod (15), and the end of the spring (17) away from the pressure plate (16) is fixedly connected to the positioning plate (20). ), two screw rods (18) are fixedly installed on the top of the inlet pipe (2), and the two pressing plates (16) are respectively slidably sleeved on the two screw rods (18). 2. An explosion-proof solenoid valve according to claim 1, characterized in that: the two screw rods (18) are threadedly sleeved with nuts (19), the nuts (19) are located above the pressure plate (16), and the nuts (19) are located above the pressure plate (16). The bottom of (19) is in contact with the top of the platen (16). 3 . The explosion-proof solenoid valve according to claim 1 , wherein the number of the pressure relief holes ( 11 ) is plural, and the plurality of pressure relief holes ( 11 ) are arranged obliquely, and the plurality of relief holes ( 11 ) are arranged obliquely. 4 . The pressing holes (11) are arranged in a ring at equal intervals. 4. An explosion-proof solenoid valve according to claim 1, characterized in that: the number of the liquid outlet holes (12) is multiple, and the plurality of liquid outlet holes (12) are arranged at equal intervals, and the plurality of outlet holes (12) are arranged at equal intervals. The liquid holes (12) are all communicated with the fixing cavity (5). 5 . The explosion-proof solenoid valve according to claim 1 , wherein a handle is fixedly installed on the top of the horizontal plate ( 10 ). 6 . 6. An explosion-proof solenoid valve according to claim 1, characterized in that: limit slots are provided on both inner walls of the same chute (14), and limit slots are fixedly installed on both sides of the slide rod (15). block, and the limit block is slidably installed in the limit slot.

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