An explosion-proof instrument operation box

Abstract

The present invention discloses an explosion-proof instrument operation box, comprising a main control box for accommodating the explosion-proof instrument, a sub-box body arranged in a foundation, two supporting columns connecting the sub-box body and the main control box, and an air inlet channel and an air outlet channel arranged in the two supporting columns and connecting the inside of the main control box and the inside of the sub-box body, and a gas driving member for driving the air flow is arranged in the sub-box body, the air flow flows from the sub-box body to the main control box through the air outlet channel, and then flows back to the sub-box body through the air inlet channel, and the sub-box body is arranged in the foundation, and then the temperature of the air flow is reduced through heat exchange between the sub-box body and the foundation, thereby reducing the temperature inside the main control box, and avoiding the situation that static electricity is more easily generated due to excessive temperature.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof operating boxes, and in particular to an explosion-proof instrument operating box. Background Art

[0002] Explosion-proof instruments are electric instruments that can be used safely in an environment with explosive mixtures. Certain safety technical measures are taken during the design and manufacture of such instruments. Although safety measures have been taken, sparks, arcs, hot particles and static electricity may still be generated during operation, which may become the source of fire for igniting flammable gas mixtures in explosive hazardous environments. Usually, an explosion-proof operating box that meets the specifications is used. The explosion-proof operating box in the prior art is made of high-strength materials and has a certain thickness. The treatment measure for static electricity in the prior art is to use a grounding wire to guide the static electricity inside the box to the ground, thereby reducing the situation of igniting the mixture caused by static electricity.

[0003] The existing operating box has high sealing. With the use of instruments or other electrical appliances, the heat inside the box is high, and the air inside the box is dry, which makes it easier to generate static electricity. Relying solely on the grounding wire for guidance is inefficient and not conducive to maintaining a static-free environment inside the box. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an explosion-proof instrument operation box.

[0005] The present invention provides an explosion-proof instrument operating box, comprising:

[0006] A main control box, wherein a plurality of explosion-proof instruments are installed inside the main control box;

[0007] The heat exchange mechanism comprises support columns arranged at both ends of the bottom of the main control box along the first direction, the bottom ends of the two support columns are provided with auxiliary boxes, the auxiliary boxes are arranged in the foundation, one of the support columns has an air outlet channel connecting the interior of the main control box and the interior of the auxiliary box, and the other support column has an air inlet channel connecting the interior of the main control box and the interior of the auxiliary box;

[0008] An airflow driving member, disposed in the middle of the auxiliary box, for driving the airflow in the auxiliary box along the air outlet channel into the main control box, and guiding the airflow in the main control box along the air inlet channel into the auxiliary box;

[0009] The inner top wall of the auxiliary box body is provided with outer baffles on both sides corresponding to the airflow driving member along the first direction, a first gap is formed between the bottom ends of the two outer baffles and the inner bottom wall of the auxiliary box body, the inner bottom wall of the auxiliary box body is provided with inner baffles between each of the outer baffles and the airflow driving member, a second gap is formed between the two inner baffles and the inner top wall of the auxiliary box body, the normal direction of each of the outer baffles and each of the inner baffles is the first direction, and the outer surface of the bottom of the auxiliary box body is uniformly distributed with fins;

[0010] An emergency mechanism is provided in the middle of the air outlet channel, and the emergency mechanism includes a horizontal storage box connected to the air outlet channel, and the horizontal storage box is provided with a connecting channel away from the end of the air outlet channel, and a powder spraying assembly is provided at the top of the connecting channel. When the airflow in the connecting channel blows toward the powder spraying assembly, the powder spraying assembly sprays fire extinguishing powder toward the main control box side;

[0011] A piston block is provided inside the transverse storage box, and a drainage channel is provided inside the piston block. A driving spring connected to the connecting channel is provided at the end of the piston block away from the air outlet channel. A third air permeable net is provided at the connection between the transverse storage box and the air outlet channel to limit the movement of the piston block into the air outlet channel. When the third air permeable net is broken by heat, the airflow in the sub-box is blown toward the powder injection assembly through the air outlet channel, the drainage channel and the connecting channel.

[0012] According to the technical solution provided in the embodiment of the present application, an air induction mechanism is provided inside the main control box, and the air induction mechanism includes a disturbance part provided at the connection between the air outlet channel and the inside of the main control box, and the disturbance part is used to adjust the angle of the airflow flowing into the main control box from the air outlet channel.

[0013] According to the technical solution provided in the embodiment of the present application, a plurality of baffles arranged along the second direction are arranged on the top of the air outlet channel, a fan is arranged between adjacent baffles, a disturbance shaft is arranged at the top of the middle part of the fan, the axis extension direction of the disturbance shaft is the third direction, the disturbance shaft is rotatably connected to the inner wall of the air outlet channel, the airflow in the air outlet channel drives the fan and the disturbance shaft to rotate, a guide plate is arranged at the top of the disturbance shaft, the guide plate extends from bottom to top toward the side away from the disturbance shaft, and the first direction, the second direction and the third direction are perpendicular to each other.

[0014] According to the technical solution provided in the embodiment of the present application, the air induction mechanism also includes a uniformly distributed air collecting portion arranged at the connection between the air inlet channel and the interior of the main control box, the uniformly distributed air collecting portion includes a plurality of air inlet hole groups arranged along the second direction, each of the air inlet hole groups includes a plurality of air inlets arranged along the third direction, and each of the air inlets connects the air inlet channel and the interior of the main control box.

[0015] According to the technical solution provided in the embodiment of the present application, a dryness and wetness regulating mechanism is provided on the top of the auxiliary box body, and the dryness and wetness regulating mechanism is used to adjust the humidity of the airflow in the air inlet channel or the humidity of the airflow in the air outlet channel.

[0016] According to the technical solution provided in the embodiment of the present application, the dry-wet adjustment mechanism includes:

[0017] Two installation slots are provided through the bottoms of the two support columns;

[0018] Two rectangular frames are respectively arranged in the two installation slots and can move along the first direction. A partition plate is arranged in the middle of the two rectangular frames, and the normal direction of the partition plate is the first direction. The rectangular frames have an adjustment bin located on one side of the partition plate and an empty bin located on the other side of the partition plate. The two adjustment bins are respectively filled with a wetting agent and a desiccant;

[0019] The two rectangular frames have a first state and a second state. When in the first state, the air outlet channel is connected to the interior of the auxiliary box through the regulating chamber of one rectangular frame, and the air inlet channel is connected to the interior of the auxiliary box through the empty chamber of the other rectangular frame; when in the second state, the air outlet channel is connected to the interior of the auxiliary box through the empty chamber of one rectangular frame, and the air inlet channel is connected to the interior of the auxiliary box through the regulating chamber of the other rectangular frame;

[0020] The driving unit is arranged on the auxiliary box body and is used for driving the two rectangular frames to switch between the first state and the second state.

[0021] According to the technical solution provided in the embodiment of the present application, a plurality of instrument buttons are arranged on the front face of the main control box, and a lifting mechanism is arranged on the front face of the main control box, and the lifting mechanism comprises a lower connecting box arranged on the front face of the main control box and corresponding to one of the instrument buttons, and an extension box body is arranged on the end of the lower connecting box away from the main control box, and the extension box body extends along the third direction toward the side away from the lower connecting box, and an upper connecting box is arranged on the top of the extension box body away from the end of the main control box, and a connecting rod transmission assembly is arranged on the upper connecting box, the extension box body and the lower connecting box;

[0022] The connecting rod transmission assembly includes a driving rod arranged on the upper connecting box, and a pressing rod arranged inside the lower connecting box and corresponding to the position of the instrument button. When the driving rod moves along the first direction away from the main control box, the pressing rod moves along the first direction toward the instrument button and presses the instrument button.

[0023] According to the technical solution provided in the embodiment of the present application, the connecting rod transmission assembly also includes a rotatable central shaft located in the middle of the extension box body, the axial extension direction of the central shaft is the second direction, and connecting rods are provided at the top and bottom of the central shaft. The top end of the connecting rod located at the top of the central shaft is rotatably connected to the driving rod close to the main control box end, and the connecting rod located at the bottom of the central shaft is rotatably connected to the pressing rod away from the main control box end.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. A heat exchange mechanism is provided, and the airflow flows from the auxiliary box through the air outlet channel to the main control box, and then flows back to the auxiliary box through the air inlet channel. The auxiliary box is arranged in the foundation, and the temperature of the airflow is reduced through the heat exchange between the auxiliary box and the foundation, thereby reducing the temperature inside the main control box to avoid the situation where static electricity is more easily generated due to excessive temperature. In addition, fins are provided to increase the contact surface between the auxiliary box and the foundation, which not only improves the heat exchange efficiency between the auxiliary box and the foundation, but also makes it easier for the static electricity generated in the main control box to be guided to the ground, thereby improving the efficiency of eliminating static electricity. Furthermore, inner and outer baffles are provided, which are equivalent to the role of baffles, thereby improving the heat exchange efficiency between the airflow and the auxiliary box.

[0026] 2. An air induction mechanism is provided, and a self-rotating disturbance shaft and a guide plate are provided at the top of the air outlet channel to adjust the direction of the airflow entering the main control box, so as to facilitate more sufficient contact with the surface of each instrument; in addition, the air induction mechanism also includes a uniformly distributed air collecting part provided on the air inlet channel, which has uniformly arranged air inlets, so as to better absorb the airflow inside the main control box, avoid absorbing only the gas close to the air inlet channel, and improve the flow path of the airflow in the main control box. Through these two methods, the heat exchange between the instrument and the newly entered airflow is ensured, and the heat exchange efficiency is guaranteed;

[0027] 3. A dry-wet adjustment mechanism is set up. The wetting agent and desiccant are stored in the adjustment chamber. In one state, the airflow passes through the wetting agent, and in another state, the airflow passes through the desiccant, which can adjust the humidity inside the main control box. An overly humid environment will cause the instruments in the main control box to get damp, while an overly dry environment will cause the static electricity in the main control box to increase. Therefore, by switching between the two states, the environment in the main control box is kept within a suitable range, which not only avoids the damage of the instruments due to moisture, but also avoids the increase of static electricity;

[0028] 4. An emergency mechanism is provided. When an emergency such as combustion or explosion occurs, the first air permeable net is broken by heat, and the air flow in the auxiliary box is blown to the powder spray assembly, and then the powder spray assembly sprays the fire extinguishing powder into the main control box (1). The fire extinguishing powder absorbs heat and generates non-flammable gas. The non-flammable gas isolates the accident location from the outside gas, plays an emergency fire extinguishing role, and avoids damage to instruments or other electrical appliances caused by emergency accidents;

[0029] 5. A lifting mechanism is also provided. By extending the box body and the connecting rod transmission assembly, the instrument button is pressed by the pressing rod through the operation of the driving rod. In the prior art, some equipment is installed on a multi-layer platform. If the operation button needs to go down to the bottom layer, the extended box body will lift the operation position to a suitable level, so that the instrument button and the corresponding equipment are on the same platform, which is convenient for the operator to use. The operator does not need to go down to the bottom layer again, which improves the convenience and flexibility of the operation box.

[0030] To summarize, the induced draft mechanism increases the airflow path of the heat exchange mechanism in the main control box, and the humidity in the air inlet and outlet channels of the heat exchange mechanism is adjusted by the dry-wet adjustment mechanism, so that the main control box has an environment with suitable temperature and humidity, reducing the damage of explosion-proof instruments due to moisture and the aggravation of static electricity, and cooperating with the set emergency mechanism to avoid the expansion of emergency accidents. It not only ensures safety protection during use, but also has protection in unexpected situations, making the use of the main control box in an explosion-proof environment safer, reducing the probability of accidents in the factory, and reducing the losses caused by factory accidents.

[0031] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0033] Figure 1 A schematic structural diagram of an explosion-proof instrument operating box provided in an embodiment of the present application.

[0034] Figure 2 A schematic diagram of the structure inside an explosion-proof instrument operating box provided in an embodiment of the present application.

[0035] Figure 3 A schematic structural diagram of an air induction mechanism in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0036] Figure 4 A schematic structural diagram of a dry-wet adjustment mechanism in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0037] Figure 5 A schematic structural diagram of a partition plate and a rectangular frame in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0038] Figure 6 A cross-sectional view of an emergency mechanism in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0039] Figure 7 A schematic diagram of the structure of an emergency mechanism in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0040] Figure 8 A schematic structural diagram of a lifting mechanism in an explosion-proof instrument operating box provided in an embodiment of the present application.

[0041] Numbers in the figure:

[0042] 1. Main control box; 11. Wire connection; 12. Instrument buttons;

[0043] 2. heat exchange mechanism; 21. auxiliary box; 22. support column; 23. air outlet channel; 24. first mounting plate; 25. air inlet fan; 26. controller; 27. temperature and humidity sensor; 28. fin; 29. ​​inner baffle; 210. outer baffle; 211. air inlet channel;

[0044] 3. Air induction mechanism; 31. Baffle; 32. Second mounting plate; 33. Disturbance shaft; 34. Fan; 35. Guide plate; 36. Blocking plate; 37. Air collecting duct; 38. Air inlet; 39. Bearing;

[0045] 4. Dry-wet adjustment mechanism; 41. Adjustment motor; 42. Driving gear; 43. Driven rack; 44. Rectangular frame; 45. Separator; 46. First air permeable net; 47. Limiting strip; 48. Positioning block; 49. Installation slot; 410. Wetting sponge; 411. Activated carbon particles;

[0046] 5. Emergency mechanism; 51. Horizontal storage box; 52. Connection channel; 53. Accommodation chamber; 54. Air outlet; 55. Second air permeable net; 56. Third air permeable net; 57. Piston block; 58. Drainage channel; 59. Driving spring; 510. Fastening strip; 511. Fire extinguishing powder; 512. Installation channel;

[0047] 6. Lifting mechanism; 61. Extension box body; 62. Central axis; 63. Connecting rod; 64. Driving rod; 65. Pressing rod; 66. Lower connecting box; 67. Upper connecting box; 68. Return spring; 69. Pull rod; 610. First limit slot; 611. Second limit slot. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] Please refer to Figure 1 to Figure 8 , an embodiment of the present invention provides an explosion-proof instrument operation box, comprising:

[0051] A main control box 1, wherein several explosion-proof instruments are installed inside the main control box 1, and a plurality of wire pipes 11 are provided at the back end of the main control box 1 for installing the wires connecting the explosion-proof instruments;

[0052] The heat exchange mechanism 2 includes support columns 22 arranged at both ends of the bottom of the main control box 1 along the first direction, and the bottom ends of the two support columns 22 are provided with auxiliary boxes 21, and the auxiliary boxes 21 are arranged in the foundation. One support column 22 has an air outlet channel 23 connecting the inside of the main control box 1 and the inside of the auxiliary box 21, and the other support column 22 has an air inlet channel 211 connecting the inside of the main control box 1 and the inside of the auxiliary box 21. The first direction is Figure 1 and Figure 2 Left and right directions in

[0053] The airflow driving member is arranged in the middle of the auxiliary box 21, and is used to drive the airflow in the auxiliary box 21 to enter the main control box 1 along the air outlet channel 23, and guide the airflow in the main control box 1 to enter the auxiliary box 21 along the air inlet channel 211. Figure 2 As shown, the airflow driving component includes a first mounting plate 24 arranged in the middle of the auxiliary box body 21, and a drainage fan 25 is arranged in the middle of the first mounting plate 24. The drainage fan 25 drives the airflow to flow along the side of the air inlet channel 211 to the air outlet channel 23; the airflow exchanges heat with the auxiliary box body 21 in the auxiliary box body 21, and the cooled airflow flows to the main control box 1 through the air outlet channel 23, and then exchanges heat with the explosion-proof instrument in the main control box 1, and finally flows back to the auxiliary box body 21 through the air inlet channel 211. The auxiliary box body 21 is arranged in the foundation, and the heat exchange between the auxiliary box body 21 and the foundation transfers the heat obtained from the airflow to the outside world. Finally, the airflow circulates back and forth to achieve the purpose of reducing the internal temperature of the main control box 1 and avoid the situation where excessive temperature will make static electricity more likely to be generated.

[0054] In some embodiments, outer baffles 210 are provided on both sides of the inner top wall of the auxiliary box body 21 corresponding to the airflow driving member along the first direction, and a first gap is provided between the bottom ends of the two outer baffles 210 and the inner bottom wall of the auxiliary box body 21. An inner baffle 29 is provided on the inner bottom wall of the auxiliary box body 21 between each outer baffle 210 and the airflow driving member, and a second gap is provided between the two inner baffles 29 and the inner top wall of the auxiliary box body 21. The normal directions of each outer baffle 210 and each inner baffle 29 are both in the first direction, and the outer surface of the bottom of the auxiliary box body 21 is evenly distributed with fins 28;

[0055] like Figure 2As shown, the outer baffle 210 and the inner baffle 29 are equivalent to deflectors, and the airflow generated by the induced draft fan 25 will flow back and forth along the two and contact the surfaces of the two. The outer baffle 210 and the inner baffle 29 are both connected to the sub-box 21, so that the airflow can more fully exchange heat with the sub-box 21, thereby achieving the purpose of sufficient cooling, and the fins 28 increase the contact area between the sub-box 21 and the foundation, so that the sub-box 21 can diffuse heat to the foundation more quickly.

[0056] In some embodiments, an emergency mechanism 5 is provided in the middle of the air outlet channel 23, and the emergency mechanism 5 includes a horizontal storage box 51 connected to the air outlet channel 23, and a connecting channel 52 is provided at the end of the horizontal storage box 51 away from the air outlet channel 23, and a powder spraying assembly is provided at the top of the connecting channel 52. When the airflow in the connecting channel 52 blows toward the powder spraying assembly, the powder spraying assembly sprays the fire extinguishing powder 511 toward the side of the main control box 1;

[0057] like Figure 6 and Figure 7 As shown, the powder spraying assembly includes a storage bin 53 arranged at the top of the connecting channel 52, and the storage bin 53 is also filled with a fire extinguishing powder 511. A plurality of air outlets 54 are evenly arranged at the top of the storage bin 53. When the airflow in the connecting channel 52 blows toward the powder spraying assembly, it will first flow into the storage bin 53, and then the fire extinguishing powder 511 in the bin will be sprayed upward through the air outlets 54, and sprayed toward the main control box 1. Optionally, the fire extinguishing powder 511 adopts a common dry powder fire extinguishing agent, which is composed of a base material (such as baking soda, ammonium carbonate, ammonium salt of phosphate, etc.), an appropriate amount of lubricant (magnesium stearate, mica powder, talcum powder, etc.) and a small amount of fire extinguishing agent. The dehumidifying agent (silicone) is mixed and ground together, and the sprayed powder will adhere to the surface of the main control box 1, forming an isolation layer that hinders combustion, and at the same time precipitate non-combustible gas to reduce the oxygen concentration in the air, extinguish the flame or prevent the accident from continuing to expand, thereby achieving the purpose of emergency treatment; further optionally, a second air permeable net 55 is provided on the top of the accommodating bin 53, and the second air permeable net 55 has a plurality of evenly arranged air holes, whose pore diameter is larger than the diameter of the powder particles of the fire extinguishing powder 511 and smaller than the diameter of the air outlet 54, so that the fire extinguishing powder 511 is evenly sprayed, so that it is more evenly distributed on the outer surface of the main control box 1, ensuring the formation of an effective isolation layer.

[0058] A piston block 57 is provided inside the transverse storage box 51, and a drainage channel 58 is provided inside the piston block 57. A driving spring 59 connected to the connecting channel 52 is provided at the end of the piston block 57 away from the air outlet channel 23. A third air permeable net 56 is provided at the connection between the transverse storage box 51 and the air outlet channel 23 to limit the movement of the piston block 57 into the air outlet channel 23. When the third air permeable net 56 is broken by heat, the airflow in the auxiliary box 21 passes through the air outlet channel 23, the drainage channel 58 and the connecting channel 52 and blows toward the powder spraying assembly.

[0059] like Figure 6 and Figure 7 As shown, a mounting channel 512 is provided through the left top wall of the horizontal storage box 51 and the right side wall of the air outlet channel 23. The bottom end of the third air permeable net 56 is connected to the bottom surface of the horizontal storage box 51, and the other end passes through the mounting channel 512 and extends into the main control box 1, and is connected to the top side wall of another support column 22. When an emergency occurs inside the main control box 1, the temperature inside the main control box 1 rises or sparks are generated, and the third air permeable net 56 inside the main control box 1 breaks; in addition, under normal conditions, the third air permeable net 56 restricts the piston block 57 from moving into the air outlet channel 23, and the driving spring 59 is in a compressed state at this time. In an emergency state, the restriction of the third air permeable net 56 is lost, and the driving spring 59 returns to its original state, and the piston block 57 pushes the third air permeable net 56 to abut against the other inner wall of the air outlet channel 23, blocking the air outlet channel 23, and the drainage channel 58 inside the piston block 57 is now connected to the lower half of the air outlet channel 23 and the connecting channel 5 2. Induce the airflow to blow toward the powder spraying assembly. Optionally, the drainage channel 58 is composed of a number of branch channels arranged in the front-to-back direction, each branch channel has an air inlet opening toward the lower side and an air outlet opening toward the right side. The number of driving springs 59 corresponds to that of each branch channel and the diameter is larger than the diameter of each branch channel, which ensures the uniform flow of the airflow and the stable movement of the piston block 57. Further, optionally, a fastening strip 510 is provided at the top of the main control box 1. The fastening strip 510 is elastic and its two ends are respectively connected to the top wall of the main control box 1. A fire extinguishing powder 511 is provided between the fastening strip 510 and the main control box 1. The fire extinguishing powder 511 is wrapped by a flammable plastic film. In an emergency, the flammable plastic film burns and decomposes quickly, causing the fire extinguishing powder 511 to fall directly into the main control box 1, assisting the fire extinguishing powder 511 in the storage bin 53, thereby achieving fire extinguishing treatment inside and outside the main control box 1, and further improving the emergency treatment capability.

[0060] In some embodiments, an air induction mechanism 3 is provided inside the main control box 1, and the air induction mechanism 3 includes a disturbance part provided at the connection between the air outlet channel 23 and the inside of the main control box 1, and the disturbance part is used to adjust the angle of the air flow from the air outlet channel 23 into the main control box 1; Figure 2 and Figure 3 As shown, various airflow angles make the airflow flow chaotically and disorderly in the main control box 1, and more fully contact with each explosion-proof instrument, avoiding the situation where extremely remote locations are difficult to exchange heat with the airflow.

[0061] In some embodiments, a plurality of baffles 31 arranged along the second direction are provided at the top of the air outlet channel 23, a fan 34 is provided between adjacent baffles 31, a disturbance shaft 33 is provided at the top of the middle part of the fan 34, the axis extension direction of the disturbance shaft 33 is the third direction, the disturbance shaft 33 is rotatably connected to the inner wall of the air outlet channel 23, the airflow in the air outlet channel 23 drives the fan 34 and the disturbance shaft 33 to rotate, a guide plate 35 is provided at the top of the disturbance shaft 33, the guide plate 35 extends from bottom to top toward the side away from the disturbance shaft 33, and the first direction, the second direction and the third direction are perpendicular to each other;

[0062] like Figure 2 and Figure 3 As shown, the second direction is Figure 2 The front-to-back direction in the third direction is Figure 2 In the up and down directions, when the airflow in the air outlet channel 23 flows upward into the main control box 1, it will drive the fan 34 to rotate, and then drive the disturbance shaft 33 and the guide plate 35 to rotate. Since the guide plate 35 is arranged at an angle, the airflow will be discharged in multiple directions under the blockage of the guide plate 35, guiding the airflow to flow disorderly. In addition, the function of the baffle 31 is to limit the passage of airflow to ensure that the fan 34 is subjected to more airflow and is driven to rotate by the airflow. Optionally, a bearing 39 is provided in the middle part of the disturbance shaft 33, and a second mounting plate 32 is provided on the outer bearing shell of the bearing 39. The other end of the second mounting plate 32 is connected to the inner wall of the air outlet channel 23, thereby ensuring the stable rotation of the disturbance shaft 33.

[0063] In some embodiments, the air induction mechanism 3 further includes a uniformly distributed air collecting portion provided at the connection between the air inlet channel 211 and the inside of the main control box 1, the uniformly distributed air collecting portion includes a plurality of air inlet hole groups arranged along the second direction, each air inlet hole group includes a plurality of air inlets 38 arranged along the third direction, and each air inlet 38 communicates with the air inlet channel 211 and the inside of the main control box 1;

[0064] like Figure 2 As shown, the disordered and turbulent airflow after disturbance randomly enters the evenly arranged air inlet 38, avoiding the situation where there is only one air inlet position, causing the disordered and turbulent airflow to be converted into orderly flow to a single air inlet position. Optionally, a blocking plate 36 is provided on the top of the air inlet channel 211, and an air collecting duct 37 arranged along the front-to-back direction is provided on the top of the blocking plate 36. An air collecting duct 37 has an air inlet hole group, that is, a plurality of air inlets 38 of an air inlet hole group are evenly arranged from top to bottom on the outer wall of the air collecting duct 37, and the air inlet 38 is connected to the inner cavity of the air collecting duct 37, and the inner cavity of the air collecting duct 37 is connected to the air inlet channel 211, ensuring that the air inlet 38 stably guides the internal airflow of the main control box 1 into the air inlet channel 211.

[0065] In some embodiments, a dryness and humidity adjustment mechanism 4 is provided on the top of the auxiliary box body 21, and the dryness and humidity adjustment mechanism 4 is used to adjust the humidity of the air flow in the air inlet channel 211 or the humidity of the air flow in the air outlet channel 23; Figure 2 and Figure 4 As shown, because the airflow passes through the air inlet channel 211 and the air outlet channel 23, the humidity of one of the internal airflows is adjusted. After the airflow flows into the main control box 1, the humidity inside the main control box 1 is adjusted to avoid an overly humid environment that may cause the instruments in the main control box 1 to get damp, and to avoid an overly dry environment that may cause the static electricity in the main control box 1 to increase.

[0066] In some embodiments, the dry and wet adjustment mechanism 4 includes:

[0067] Two mounting slots 49 are provided through the bottoms of the two support columns 22. Figure 1 and Figure 2 As shown;

[0068] Two rectangular frames 44 are respectively arranged in two installation slots 49 and can move along the first direction. A partition plate 45 is arranged in the middle of the two rectangular frames 44. The normal direction of the partition plate 45 is the first direction. The rectangular frames 44 have an adjustment bin located on one side of the partition plate 45 and an empty bin located on the other side of the partition plate 45. The two adjustment bins are respectively filled with a wetting agent and a desiccant. Optionally, the wetting agent can be a wetting sponge 410, and the desiccant can be activated carbon particles 411.

[0069] The two rectangular frames 44 have a first state and a second state. When in the first state, the air outlet channel 23 is connected to the interior of the auxiliary box body 21 through the regulating chamber of one rectangular frame 44, and the air inlet channel 211 is connected to the interior of the auxiliary box body 21 through the empty chamber of the other rectangular frame 44; when in the second state, the air outlet channel 23 is connected to the interior of the auxiliary box body 21 through the empty chamber of one rectangular frame 44, and the air inlet channel 211 is connected to the interior of the auxiliary box body 21 through the regulating chamber of the other rectangular frame 44;

[0070] like Figure 4 As shown, when the two rectangular frames 44 are in the first state, the airflow passing through the air outlet channel 23 passes through the moistened sponge 410 in the regulating chamber, and the airflow passing through the air inlet channel 211 passes through the empty chamber, so as to moisten the airflow; when in the second state, the airflow passing through the air outlet channel 23 passes through the empty chamber, and the airflow passing through the air inlet channel 211 passes through the activated carbon particles 411 in the regulating chamber, so as to dry the airflow;

[0071] The two installation slots 49 each include a first opening that is far away from each other and a second opening that is close to each other. When the two rectangular frames 44 are in the first state, as shown in FIG. Figure 4As shown, the outer edges of the two rectangular frames 44 away from the side walls are matched with the inner edges of the second opening, and the outer edges formed by the top surface, bottom surface and outer wall of the partition plate 45 and the rectangular frame 44 are matched with the inner edge of the first opening, so as to prevent the external airflow from entering the installation slot 49 from the gap, and ensure the airflow to pass through the empty bin or the adjustment bin stably. In addition, when the two rectangular frames 44 are in the second state, the outer edges of the two rectangular frames 44 close to the side walls are matched with the inner edge of the first opening, and the outer edges formed by the top surface, bottom surface and outer wall of the partition plate 45 and the rectangular frame 44 are matched with the inner edge of the second opening; optionally, the first air permeable net 46 is provided at the bottom of the adjustment bin and the empty bin, so as to realize the purpose of filling the wetting agent or desiccant in the adjustment bin and not interfere with the normal flow of the airflow;

[0072] A driving unit, provided on the auxiliary box body 21, for driving the two rectangular frames 44 to switch between a first state and a second state;

[0073] like Figure 4 and Figure 5 As shown, the driving part includes an adjusting motor 41 arranged on the top of the first mounting plate 24, the output shaft of the adjusting motor 41 passes through the top of the auxiliary box 21 and is equipped with a driving gear 42, and driven racks 43 connected with teeth are arranged on both sides of the driving gear 42, and the ends of the two driven racks 43 that are far away from each other are respectively connected to the outer wall of a rectangular frame 44, and the driving gear 42 is driven to rotate by the adjusting motor 41, so as to drive the driven rack 43 to move left and right, thereby driving the two rectangular frames 44 to move closer to or away from each other, so as to achieve the purpose of switching between the first state and the second state. Optionally, a limit bar 47 is arranged on the top of the auxiliary box 21, and the limit bar 47 is in the shape of an inverted concave type. The driven rack 43 is arranged inside the limit bar 47 to ensure the stability of the driven rack 43 during movement. Further optionally, a positioning block 48 is provided in the middle of the bottom end of the driven rack 43. When the two rectangular frames 44 are in the first state, the ends of the two limit bars 47 that are far away from each other respectively abut against the outer edges of the corresponding rectangular frames 44. When the two rectangular frames 44 are in the second state, the ends of the two limit bars 47 that are close to each other respectively abut against the corresponding positioning blocks 48, thereby limiting the excessive movement of the driven rack 43 and avoiding the position displacement of the rectangular frame 44 caused by excessive movement, which causes the outside air to enter the installation slot 49 along the gap.

[0074] In some embodiments, a plurality of instrument buttons 12 are provided on the front face of the main control box 1, and a lifting mechanism 6 is provided on the front face of the main control box 1. The lifting mechanism 6 includes a lower connecting box 66 provided on the front face of the main control box 1 and corresponding to one instrument button 12. An extension box body 61 is provided at the end of the lower connecting box 66 away from the main control box 1. The extension box body 61 extends along a third direction toward a side away from the lower connecting box 66. An upper connecting box 67 is provided at the top of the extension box body 61 away from the end of the main control box 1. A connecting rod transmission assembly is provided on the upper connecting box 67, the extension box body 61 and the lower connecting box 66.

[0075] The connecting rod transmission assembly includes a driving rod 64 disposed on the upper connecting box 67, and a pressing rod 65 disposed inside the lower connecting box 66 and corresponding to the position of the instrument button 12. When the driving rod 64 moves along the first direction away from the main control box 1, the pressing rod 65 moves along the first direction toward the instrument button 12 and presses the instrument button 12.

[0076] like Figure 1 and Figure 8 As shown, the height of the upper connecting box 67 and the driving rod 64 can be increased by extending the box body 61, and people can press the instrument button 12 by operating the driving rod 64. In the prior art, some equipment is installed on a multi-layer platform. If it is necessary to go down to the bottom layer to operate the instrument button 12, the extended box body 61 will lift the operating position to a suitable level, so that the instrument button 12 and the corresponding equipment are on the same platform, which is convenient for the operator to use. The operator does not need to go down to the bottom layer again, thereby improving the convenience and flexibility of the operation box.

[0077] In some embodiments, the connecting rod transmission assembly further includes a rotatable central shaft 62 disposed in the middle of the extension box body 61, the axis extension direction of the central shaft 62 is the second direction, and connecting rods 63 are disposed at the top and bottom of the central shaft 62, the top end of the connecting rod 63 located at the top of the central shaft 62 is rotatably connected to the end of the driving rod 64 close to the main control box 1, and the connecting rod 63 located at the bottom of the central shaft 62 is rotatably connected to the end of the pressing rod 65 away from the main control box 1;

[0078] like Figure 8 As shown, the driving rod 64 is pulled outward, driving the connecting rod 63 to rotate with the central axis 62 as the rotation center, driving the pressing rod 65 to move toward the side of the instrument button 12 to realize the pressing operation. In addition, a first limiting groove 610 is provided at the top of the extension box body 61 for the driving rod 64 to pass through, and the inner wall of the first limiting groove 610 is in contact with the outer wall of the driving rod 64 to ensure the stability of the driving rod 64 during the movement. Similarly, a second limiting groove 611 is provided at the bottom of the extension box body 61 for the pressing rod 65 to pass through, so as to ensure the stable movement of the pressing rod 65. ; Optionally, in order to facilitate pulling the drive rod 64, the drive rod 64 is provided with a pull rod 69 extending in the up and down directions at the section away from the extension box body 61, and in order to facilitate the next use of the drive rod 64, a return spring 68 is installed in the middle part of the drive rod 64, and the end of the return spring 68 away from the pull rod 69 is connected to the outer wall of the drive rod 64, and the other end of the return spring 68 is connected to the upper connecting box 67. When in use, as the drive rod 64 moves to the right, the return spring 68 contracts. After use, the return spring 68 returns to its original state, driving the drive rod 64 to return to its original state.

[0079] In some embodiments, a temperature and humidity sensor 27 is provided on the side wall of the main control box 1, and the temperature and humidity sensor 27 is used to measure the temperature and humidity inside the main control box 1. A controller 26 is provided at the first gap, and the controller 26 is used to receive the temperature and humidity data measured by the temperature and humidity sensor 27, and control the start and stop of the drainage fan 25 and the start and stop of the regulating motor 41;

[0080] like Figure 2 As shown, during normal use of the explosion-proof instrument in the main control box 1, the controller 26 starts the drainage fan 25 when the temperature is high based on the temperature data transmitted by the temperature and humidity sensor 27, and increases the power of the drainage fan 25 when the temperature does not drop, so that the airflow flows faster. In addition, the controller 26 also receives the humidity data of the temperature and humidity sensor 27. If the humidity is too high, the control motor 41 is started, and the two rectangular frames 44 are switched to the second state through the meshing action of the driving gear 42 and the driven rack 43. The airflow passing through the air outlet channel 23 passes through the empty bin, and the airflow passing through the air inlet channel 211 passes through the activated carbon particles 411 in the regulating bin, so as to achieve the purpose of drying the airflow. When the humidity is too low, the control motor 41 is controlled to rotate in the opposite direction, and the two rectangular frames 44 are switched to the first state. The airflow passing through the air outlet channel 23 passes through the moistening sponge 410 in the regulating bin, and the airflow passing through the air inlet channel 211 passes through the empty bin, so as to achieve the purpose of moistening the airflow.

[0081] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An explosion-proof instrument operating box, characterized in that: include: A main control box (1), wherein a plurality of explosion-proof instruments are installed inside the main control box (1); The heat exchange mechanism (2) comprises support columns (22) arranged at two ends of the bottom of the main control box (1) along a first direction, the bottom ends of the two support columns (22) are provided with auxiliary boxes (21), the auxiliary boxes (21) are arranged in the foundation, one of the support columns (22) has an air outlet passage (23) connecting the interior of the main control box (1) and the interior of the auxiliary box (21), and the other support column (22) has an air inlet passage (211) connecting the interior of the main control box (1) and the interior of the auxiliary box (21); an air flow driving member, arranged in the middle of the auxiliary box (21), for driving the air flow in the auxiliary box (21) to enter the main control box (1) along the air outlet channel (23), and guiding the air flow in the main control box (1) to enter the auxiliary box (21) along the air inlet channel (211); The inner top wall of the auxiliary box (21) is provided with outer baffles (210) on both sides corresponding to the airflow driving member along the first direction, a first gap is formed between the bottom ends of the two outer baffles (210) and the inner bottom wall of the auxiliary box (21), the inner bottom wall of the auxiliary box (21) is provided with inner baffles (29) between each of the outer baffles (210) and the airflow driving member, a second gap is formed between the two inner baffles (29) and the inner top wall of the auxiliary box (21), the normal directions of each of the outer baffles (210) and each of the inner baffles (29) are the first direction, and the outer surface of the bottom of the auxiliary box (21) is uniformly distributed with fins (28); An emergency mechanism (5) is provided in the middle of the air outlet channel (23), the emergency mechanism (5) comprising a transverse storage box (51) in communication with the air outlet channel (23), a connecting channel (52) is provided at an end of the transverse storage box (51) away from the air outlet channel (23), a powder spraying assembly is provided at the top of the connecting channel (52), and when airflow in the connecting channel (52) blows toward the powder spraying assembly, the powder spraying assembly sprays fire extinguishing powder (511) toward the side of the main control box (1); A piston block (57) is provided inside the transverse storage box (51), and a drainage channel (58) is provided inside the piston block (57). A driving spring (59) connected to the connecting channel (52) is provided at the end of the piston block (57) away from the air outlet channel (23). A third air permeable net (56) is provided at the connection between the transverse storage box (51) and the air outlet channel (23) to limit the movement of the piston block (57) into the air outlet channel (23). When the third air permeable net (56) is broken by heat, the airflow in the auxiliary box (21) is blown toward the powder injection assembly through the air outlet channel (23), the drainage channel (58) and the connecting channel (52).

2. The explosion-proof instrument operation box according to claim 1, characterized in that: The main control box (1) is provided with an air induction mechanism (3) inside, the air induction mechanism (3) comprising a disturbance portion provided at a connection between the air outlet channel (23) and the inside of the main control box (1), the disturbance portion being used to adjust the angle of airflow flowing from the air outlet channel (23) into the main control box (1).

3. The explosion-proof instrument operation box according to claim 2, characterized in that: A plurality of baffles (31) arranged along the second direction are arranged at the top of the air outlet channel (23); a fan (34) is arranged between adjacent baffles (31); a disturbance shaft (33) is arranged at the top of the middle portion of the fan (34); the axis of the disturbance shaft (33) extends in a third direction; the disturbance shaft (33) is rotatably connected to the inner wall of the air outlet channel (23); the airflow in the air outlet channel (23) drives the fan (34) and the disturbance shaft (33) to rotate; a guide plate (35) is arranged at the top of the disturbance shaft (33); the guide plate (35) extends from bottom to top toward a side away from the disturbance shaft (33); and the first direction, the second direction and the third direction are perpendicular to each other.

4. The explosion-proof instrument operation box according to claim 3 is characterized in that: The air induction mechanism (3) further comprises a uniformly distributed air collecting portion arranged at a connection between the air inlet channel (211) and the interior of the main control box (1), the uniformly distributed air collecting portion comprising a plurality of air inlet hole groups arranged along the second direction, each of the air inlet hole groups comprising a plurality of air inlets (38) arranged along the third direction, each of the air inlets (38) communicating with the air inlet channel (211) and the interior of the main control box (1).

5. The explosion-proof instrument operation box according to claim 1, characterized in that: A dryness and wetness adjustment mechanism (4) is provided on the top of the auxiliary box (21), and the dryness and wetness adjustment mechanism (4) is used to adjust the humidity of the airflow in the air inlet channel (211) or the humidity of the airflow in the air outlet channel (23).

6. The explosion-proof instrument operation box according to claim 5, characterized in that: The dry and wet adjustment mechanism (4) comprises: Two mounting through slots (49) extending through the bottoms of the two support columns (22); Two rectangular frames (44) are respectively arranged in the two installation slots (49) and can move along the first direction. A partition plate (45) is provided in the middle of the two rectangular frames (44). The normal direction of the partition plate (45) is the first direction. The rectangular frame (44) has an adjustment chamber located on one side of the partition plate (45) and an empty chamber located on the other side of the partition plate (45). The two adjustment chambers are respectively filled with a wetting agent and a desiccant. The two rectangular frames (44) have a first state and a second state. When in the first state, the air outlet channel (23) is in communication with the interior of the auxiliary box (21) through the regulating chamber of one rectangular frame (44), and the air inlet channel (211) is in communication with the interior of the auxiliary box (21) through the empty chamber of the other rectangular frame (44); when in the second state, the air outlet channel (23) is in communication with the interior of the auxiliary box (21) through the empty chamber of one rectangular frame (44), and the air inlet channel (211) is in communication with the interior of the auxiliary box (21) through the regulating chamber of the other rectangular frame (44); A driving unit is provided on the auxiliary box (21) and is used for driving the two rectangular frames (44) to switch between the first state and the second state.

7. The explosion-proof instrument operation box according to claim 3, characterized in that: The front end surface of the main control box (1) is provided with a plurality of instrument buttons (12); the front end surface of the main control box (1) is provided with a lifting mechanism (6); the lifting mechanism (6) comprises a lower connecting box (66) provided on the front end surface of the main control box (1) and corresponding to one of the instrument buttons (12); an extension box body (61) is provided at an end of the lower connecting box (66) away from the main control box (1); the extension box body (61) extends along the third direction toward a side away from the lower connecting box (66); an upper connecting box (67) is provided at the top of the extension box body (61) away from the main control box (1); and a connecting rod transmission assembly is provided on the upper connecting box (67), the extension box body (61) and the lower connecting box (66); The connecting rod transmission assembly comprises a driving rod (64) arranged on the upper connecting box (67), and a pressing rod (65) arranged inside the lower connecting box (66) and corresponding to the position of the instrument button (12); when the driving rod (64) moves along the first direction away from the main control box (1), the pressing rod (65) moves along the first direction toward the instrument button (12) and presses the instrument button (12).

8. The explosion-proof instrument operation box according to claim 7, characterized in that: The connecting rod transmission assembly also includes a rotatable central shaft (62) disposed in the middle of the extension box body (61), the axis extension direction of the central shaft (62) being the second direction, and connecting rods (63) are provided at the top and bottom of the central shaft (62), the top end of the connecting rod (63) located at the top of the central shaft (62) is rotatably connected to the end of the driving rod (64) close to the main control box (1), and the connecting rod (63) located at the bottom of the central shaft (62) is rotatably connected to the end of the pressing rod (65) away from the main control box (1).

Images