Explosion-proof electromagnetic valve box

Abstract

This utility model relates to the field of electromagnetic valve box technology, specifically an explosion-proof electromagnetic valve box, comprising: a box body and a box door. The bottom end of the box body has a cable inlet, into which a rubber plate is movably inserted. A fixing clamp is fixed to the inner wall of the cable inlet. The bottom end of the box body has a telescopic rod mounting groove, into which a telescopic rod is movably inserted. A movable clamp is fixed to the bottom end of the telescopic rod. The beneficial effects are: cables pass through the cable inlet at the bottom of the box body to connect with electronic components. Two sets of semi-circular ring-shaped rubber plates are installed in the box body. The two sets of rubber plates can be spliced ​​together to form a circular plate. The diameter of the circular hole between the two sets of rubber plates is small. Cables pass through the circular hole formed between the two sets of rubber plates. After the cable passes through, the rubber plates, under their own elasticity, seal the gap between the cable and the cable inlet, thereby improving the sealing performance of the box body.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve box technology, specifically an explosion-proof electromagnetic valve box. Background Technology

[0002] An electromagnetic valve box is a device that integrates multiple electromagnetic valves and their corresponding control circuits, pneumatic signal interfaces, electrical signal interfaces, electronic logic devices, etc. It is used to centrally control the on / off state of multiple electromagnetic valves to achieve precise control of fluid (liquid or gas) flow. The electronic components inside the electromagnetic valve box generate a lot of heat, so heat dissipation holes are usually opened on the box to allow air circulation between the inside and outside of the box, so that the heat inside the box can be quickly discharged to the outside. However, when the electronic components inside the box overheat and catch fire, the heat dissipation holes will provide a continuous supply of fresh air to the flames inside the box, causing the flames to burn more and more fiercely or even to explode, resulting in serious damage to the internal components. Therefore, how to extinguish the fire in time when the components inside the electromagnetic valve box catch fire and minimize the damage to the components by fire has become an important issue.

[0003] In the prior art, patent application CN202421272719.6 discloses an explosion-proof solenoid valve box, including a box body with a cavity inside. A sensor is installed on the top of a fixed frame, and a first sensing block and a second sensing block are installed inside the fixed frame to work with the sensor. A storage box for use with the guide pipe and the nozzle is installed on the top of the box body. This utility model can dissipate heat and cool the inside of the box through the heat dissipation vents. In case of an anomaly, the temperature inside the box rises, and the heat dissipation vents are blocked by the first and second blocking blocks. When the first sensing block contacts the second sensing block, the sensor starts to work, allowing professionals to quickly detect that the solenoid valve box is in an abnormal state. When the sensor starts to work, it drives the interaction between the storage box, the guide pipe, and the nozzle, filling the cavity with fire extinguishing dry powder from the storage box, achieving a rapid fire extinguishing effect and improving the safety of the explosion-proof solenoid valve box.

[0004] However, existing explosion-proof solenoid valve boxes lack a seal for the inlet pipe. Therefore, in the event of a fire, fresh air can still enter the box through the gap between the cable and the inlet pipe. Even if the heat dissipation vents are blocked, the box's sealing performance is still poor. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof solenoid valve box to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof solenoid valve box, comprising: a box body and a box door, the box door being rotatably connected to the surface of the box body, a cable inlet being provided at the bottom end of the box body, a rubber plate being movably inserted into the cable inlet, a fixing clamp being fixed on the inner wall of the cable inlet, a telescopic rod mounting groove being provided at the bottom end of the box body, a telescopic rod being movably inserted into the telescopic rod mounting groove, a movable clamp being fixed at the bottom end of the telescopic rod, and the fixing clamp and the movable clamp respectively abutting against the upper and lower ends of the rubber plate.

[0007] Preferably, the rubber plate, the fixed clamping plate, and the movable clamping plate are all provided in two sets, and the rubber plate, the fixed clamping plate, and the movable clamping plate are all in a semi-circular annular plate structure.

[0008] Preferably, a spring plate is fixed to the top of the telescopic rod. The spring plate has a circular plate structure. A telescopic rod spring is sleeved on the telescopic rod body. One end of the telescopic rod spring abuts against the surface of the spring plate, and the other end of the telescopic rod spring abuts against the inner wall of the telescopic rod mounting groove.

[0009] Preferably, a pull rod is fixed to the bottom end of the movable clamping plate, and the pull rod has an inverted "T" shaped round rod structure.

[0010] Preferably, a cavity is formed in the side wall of the box, and a baffle is slidably connected in the cavity. Heat dissipation holes are formed on the inner wall of the box and the surface of the baffle.

[0011] Preferably, an electromagnet is fixed on the inner wall of the top of the cavity, and a temperature control switch is fixed on the inner wall of the box. The electromagnet and the temperature control switch are electrically connected.

[0012] Preferably, a baffle spring is fixed to the bottom end of the baffle, and the bottom end of the baffle spring is fixed to the inner wall of the cavity. Two sets of baffles are fixed to the inner wall of the cavity, and the two sets of baffles are symmetrically distributed about the baffle.

[0013] Preferably, a fire extinguishing bomb is fixed to the top of the inner wall of the box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The explosion-proof solenoid valve box proposed in this utility model has a cable that enters the box through an inlet at the bottom and connects to electronic components. Two sets of semi-circular rubber plates are installed inside the box. These two sets of rubber plates can be spliced ​​together to form a circular plate. The diameter of the circular hole between the two sets of rubber plates is small, allowing the cable to pass through. After the cable passes through, the rubber plates, due to their elasticity, seal the gap between the cable and the inlet, thereby improving the box's sealing performance. When the rubber plate needs to be replaced, the movable clamp is moved downwards, away from the box, allowing the old rubber plate to be pried out of the inlet. The new rubber plate is then inserted back into the inlet and reassembled into a circular plate. The movable clamp is then returned to its original position, clamping the new rubber plate between the fixed clamp and the movable clamp, thus completing the rubber plate replacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the cavity;

[0018] Figure 3 This is a schematic cross-sectional view of the present invention.

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0021] In the diagram: 1. Box body; 2. Box door; 3. Cavity; 4. Baffle; 5. Heat dissipation hole; 6. Baffle spring; 7. Block; 8. Electromagnet; 9. Temperature control switch; 10. Cable inlet; 11. Rubber plate; 12. Fixing clamp; 13. Telescopic rod mounting slot; 14. Telescopic rod; 15. Moving clamp; 16. Spring plate; 17. Telescopic rod spring; 18. Pull rod; 19. Fire extinguishing bomb. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1 to 5This utility model provides a technical solution: an explosion-proof solenoid valve box, including: a box body 1 and a box door 2, the box door 2 being rotatably connected to the surface of the box body 1, the bottom end of the box body 1 having an inlet 10, a rubber plate 11 being movably inserted into the inlet 10, a fixing clamp 12 being fixed on the inner wall of the inlet 10, the bottom end of the box body 1 having a telescopic rod mounting groove 13, a telescopic rod 14 being movably inserted into the telescopic rod mounting groove 13, a movable clamp 15 being fixed at the bottom end of the telescopic rod 14, the fixing clamp 12 and the movable clamp 15 respectively abutting the upper and lower ends of the rubber plate 11, two sets of each of the rubber plate 11, the fixing clamp 12 and the movable clamp 15, and each of the rubber plate 11, the fixing clamp 12 and the movable clamp 15 having a semi-circular annular plate structure.

[0024] In actual use, the cable passes through the inlet 10 at the bottom of the housing 1 and connects to the electronic components. Two sets of semi-circular rubber plates 11 are installed in the housing 1. The two sets of rubber plates 11 can be spliced ​​together to form a circular plate. The diameter of the circular hole in the middle of the two sets of rubber plates 11 is small. The cable passes through the circular hole formed in the middle of the two sets of rubber plates 11. After the cable passes through, the rubber plate 11 seals the gap between the cable and the inlet 10 under its own elasticity, thereby improving the sealing performance of the housing 1. At the same time, when the rubber plate 11 needs to be replaced, the movable clamp 15 can be moved downwards to move the movable clamp 15 away from the housing 1. The old rubber plate 11 can be pried out from the inlet 10, and the new rubber plate 11 can be inserted back into the inlet 10 and reassembled into a circular plate. Then the movable clamp 15 can be returned to its original position to clamp the new rubber plate 11 between the fixed clamp 12 and the movable clamp 15, thereby completing the replacement of the rubber plate 11.

[0025] Example 2: Based on Example 1, in order to achieve position control of the movable clamping plate 15, a spring plate 16 is fixed at the top of the telescopic rod 14. The spring plate 16 has a circular plate structure. A telescopic rod spring 17 is sleeved on the rod body of the telescopic rod 14. One end of the telescopic rod spring 17 abuts against the surface of the spring plate 16, and the other end of the telescopic rod spring 17 abuts against the inner wall of the telescopic rod mounting groove 13. A pull rod 18 is fixed at the bottom of the movable clamping plate 15. The pull rod 18 has an inverted "T" shaped round rod structure.

[0026] When it is necessary to move the clamping plate 15 away from the box body 1, pull down the lever 18. The lever 18 will pull the clamping plate 15 away from the box body 1, thus moving the clamping plate 15 away from the box body 1. When the clamping plate 15 moves away from the box body 1, the clamping plate 15 will cause the telescopic rod 14 to extend out from the telescopic rod mounting slot 13. The telescopic rod 14 will cause the spring plate 16 to move in the same direction. The movement of the spring plate 16 will compress the telescopic rod spring 17. When it is necessary to move the clamping plate 15 back to its original position, simply release the lever 18. The telescopic rod spring 17 will push the spring plate 16 back to its original position under its own elasticity, thus bringing the clamping plate 15 back to its original position through the telescopic rod 14.

[0027] Example 3: Based on Example 2, in order to seal the heat dissipation holes 5 in the event of a fire, a cavity 3 is provided in the side wall of the box 1. A baffle 4 is slidably connected in the cavity 3. Heat dissipation holes 5 are provided on the inner wall of the box 1 and the surface of the baffle 4. An electromagnet 8 is fixed on the inner wall of the top of the cavity 3. A temperature control switch 9 is fixed on the inner wall of the box 1. The electromagnet 8 and the temperature control switch 9 are electrically connected. A baffle spring 6 is fixed at the bottom of the baffle 4. The bottom of the baffle spring 6 is fixed on the inner wall of the cavity 3. Two sets of baffles 7 are fixed on the inner wall of the cavity 3. The two sets of baffles 7 are symmetrically distributed about the baffle 4.

[0028] Under normal circumstances, the baffle springs 6 on the inner wall of the housing 1 and the surface of the baffle 4 are aligned one-to-one. At this time, air can circulate between the inside and outside of the housing 1 through the heat dissipation holes 5 on the inner wall of the housing 1 and the surface of the baffle 4. At this time, the cable extending into the housing 1 through the inlet 10 is connected to the temperature control switch 9 to supply power to the temperature control switch 9. At the same time, the temperature control switch 9 is in the closed state to supply power to the electromagnet 8. After the electromagnet 8 is energized, it generates a magnetic force on the metal baffle 4, keeping the baffle 4 in a state where the heat dissipation holes 5 on its surface are aligned with the heat dissipation holes 5 on the surface of the housing 1. At the same time, the baffle springs 6 are in a state of being stretched by the baffle 4 and the inner wall of the cavity 3. When a fire occurs inside the housing 1, causing the temperature to rise... When the temperature rises, the temperature control switch 9 senses the increase in temperature inside the enclosure 1. When the temperature rises to the threshold, the temperature control switch 9 switches to the off state and no longer supplies power to the electromagnet 8. The baffle spring 6 pulls the heat dissipation hole 5 downward under its own elasticity until the bottom of the heat dissipation hole 5 touches the top of the block 7. At this time, the heat dissipation hole 5 on the surface of the baffle 4 is no longer aligned with the heat dissipation hole 5 on the surface of the enclosure 1, thereby sealing the heat dissipation hole 5 in the event of a fire. At this time, the enclosure door 2 is closed, and the gap between the cable and the inlet 10 is also sealed by the rubber plate 11, so that the enclosure 1 is in a good sealed state, preventing fresh air from entering the enclosure 1 and contributing to the combustion of the flame.

[0029] Example 4: Based on Example 3, in order to extinguish the flames inside the box 1 more quickly, a fire extinguishing bomb 19 is fixed to the top of the inner wall of the box 1.

[0030] When the fire extinguishing bomb 19 comes into contact with a flame or high-temperature environment, it will automatically detonate. The impact force of the explosion will cause the dry powder extinguishing agent inside the bomb to be released rapidly, forming a high-concentration fire extinguishing powder cloud in a short time. The dry powder will evenly cover the surface of the burning material, forming an isolation layer to prevent the burning material from contacting oxygen, thereby playing a role in isolation and suffocation, thus achieving the effect of extinguishing the flames inside the container 1 more quickly.

[0031] In actual use, the cable passes through the inlet 10 at the bottom of the enclosure 1 and connects to the electronic components. Two sets of semi-circular rubber plates 11 are installed inside the enclosure 1. These two sets of rubber plates 11 are joined together to form a circular plate. The diameter of the circular hole between the two sets of rubber plates 11 is small. The cable passes through the circular hole formed between the two sets of rubber plates 11. After the cable passes through, the rubber plate 11, under its own elasticity, seals the gap between the cable and the inlet 10, thereby improving the sealing performance of the enclosure 1. Simultaneously, when the rubber plate 11 needs to be replaced, the movable clamp 15 can be moved downwards, away from the enclosure 1, allowing the old rubber plate 11 to be pried out of the inlet 10 and the new rubber plate 11 to be installed. Insert the new rubber plate 11 back into the inlet 10 and reassemble it into a circular plate. Then, return the movable clamp 15 to its original position. This will clamp the new rubber plate 11 between the fixed clamp 12 and the movable clamp 15, thus completing the replacement of the rubber plate 11. When it is necessary to move the movable clamp 15 away from the housing 1, pull down the pull rod 18. The pull rod 18 will pull the movable clamp 15 away from the housing 1, thus moving the movable clamp 15 away from the housing 1. When the movable clamp 15 moves away from the housing 1, the movable clamp 15 will cause the telescopic rod 14 to extend from the telescopic rod mounting slot 13. The telescopic rod 14 will cause the spring plate 16 to move in the same direction. The movement of the spring plate 16 will compress the telescopic rod spring 17. When it is necessary to return the movable clamp 15 to its original position, simply release the pull rod 18. Spring 17, under its own elasticity, pushes spring plate 16 back to its original position, and the movable clamp 15 can be brought back to its original position via telescopic rod 14. Under normal circumstances, the baffle springs 6 on the inner wall of the box 1 and the surface of the baffle 4 are aligned one by one. At this time, air can circulate between the inside and outside of the box 1 through the heat dissipation holes 5 on the inner wall of the box 1 and the surface of the baffle 4. At this time, the cable extending into the box 1 through the inlet 10 is connected to the temperature control switch 9 to supply power to the temperature control switch 9. At the same time, the temperature control switch 9 is in the closed state to supply power to the electromagnet 8. After the electromagnet 8 is energized, it generates a suction force on the metal baffle 4, keeping the baffle 4 in a state where the heat dissipation holes 5 on its own surface are aligned with the heat dissipation holes 5 on the surface of the box 1. At the same time, the baffle spring 6 is in a state where the baffle 4 and the cavity are aligned. The inner wall of body 3 is stretched; when the temperature rises due to fire inside the box 1, the temperature control switch 9 senses the temperature rise inside the box 1. When the temperature rises to the threshold, the temperature control switch 9 switches to the off state and no longer supplies power to the electromagnet 8. The baffle spring 6 pulls the heat dissipation hole 5 downward under its own elasticity until the bottom end of the heat dissipation hole 5 touches the top of the block 7. At this time, the heat dissipation hole 5 on the surface of the baffle 4 is no longer aligned with the heat dissipation hole 5 on the surface of the box 1, thereby sealing the heat dissipation hole 5 in the event of a fire. At this time, the box door 2 is closed, and the gap between the cable and the inlet 10 is also sealed by the rubber plate 11, so that the box 1 is in a good sealed state, preventing fresh air from entering the box 1 and fueling the flame.When the fire extinguishing bomb 19 comes into contact with a flame or high-temperature environment, it will automatically detonate. The impact force of the explosion will rapidly release the dry powder extinguishing agent inside the bomb, forming a high-concentration extinguishing powder cloud in a short time. The dry powder will evenly cover the surface of the burning material, forming an isolation layer that prevents the burning material from contacting oxygen, thus playing a role in isolation and suffocation, thereby achieving the effect of extinguishing the flames inside the container 1 more quickly.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof solenoid valve box comprising: The box body (1) and the box door (2) are rotatably connected to the surface of the box body (1). The box body (1) has an inlet (10) at the bottom end, a rubber plate (11) is movably inserted into the inlet (10), a fixing clamp (12) is fixed on the inner wall of the inlet (10), a telescopic rod mounting groove (13) is opened at the bottom end of the box body (1), a telescopic rod (14) is movably inserted into the telescopic rod mounting groove (13), a movable clamp (15) is fixed at the bottom end of the telescopic rod (14), and the fixing clamp (12) and the movable clamp (15) abut against the upper and lower ends of the rubber plate (11) respectively.

2. An explosion-proof solenoid valve box according to claim 1, wherein: The rubber plate (11), the fixed clamp (12) and the movable clamp (15) are all provided in two sets, and the rubber plate (11), the fixed clamp (12) and the movable clamp (15) are all in a semi-circular annular plate structure.

3. An explosion-proof solenoid valve box according to claim 1, wherein: The top end of the telescopic rod (14) is fixed with a spring plate (16), which has a circular plate structure. A telescopic rod spring (17) is sleeved on the rod body of the telescopic rod (14). One end of the telescopic rod spring (17) abuts against the surface of the spring plate (16), and the other end of the telescopic rod spring (17) abuts against the inner wall of the telescopic rod mounting groove (13).

4. The explosion-proof solenoid valve box of claim 1, wherein: The bottom end of the movable clamp (15) is fixed with a pull rod (18), which has an inverted "T" shaped round rod structure.

5. The explosion-proof solenoid valve box of claim 1, wherein: The box (1) has a cavity (3) inside its side wall, and a baffle (4) is slidably connected in the cavity (3). Heat dissipation holes (5) are provided on the inner wall of the box (1) and the surface of the baffle (4).

6. An explosion-proof solenoid valve box according to claim 5, wherein: An electromagnet (8) is fixed on the inner wall of the top of the cavity (3), and a temperature control switch (9) is fixed on the inner wall of the box (1). The electromagnet (8) is electrically connected to the temperature control switch (9).

7. An explosion-proof solenoid valve box according to claim 6, wherein: A baffle spring (6) is fixed at the bottom of the baffle (4). The bottom of the baffle spring (6) is fixed on the inner wall of the cavity (3). Two sets of baffle blocks (7) are fixed on the inner wall of the cavity (3). The two sets of baffle blocks (7) are symmetrically distributed about the baffle (4).

8. The explosion-proof solenoid valve box of claim 1, wherein: Fire extinguishing bombs (19) are fixed to the top of the inner wall of the box (1).

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