A control device with intrinsically safe explosion-proof performance

Abstract

The present invention discloses a control device with intrinsically safe explosion-proof performance, which relates to the technical field of control devices, including a control device housing, a dust isolation mechanism, the dust isolation mechanism including a dust isolation belt and a hard brush, the dust isolation belt having two dust isolation belts and being movably arranged at the two ends of the interior of an air extraction box, and the hard brush being movably connected to the dust isolation belt. The present invention blocks dust in the air entering the air extraction box by a fixed mesh plate and a movable mesh plate, and then blows off the dust retained on the fixed mesh plate and the movable mesh plate through the air discharged by the airbag, thereby preventing the fixed mesh plate and the movable mesh plate from being blocked after long-term use, and improving the dust blocking ability, blocking fine dust in the air entering the air extraction box by the dust isolation belt, brushing off the dust retained on the surface of the dust isolation belt by the hard brush, and continuously lifting the movable mesh plate by a knocking plate, so that the dust accumulated on the movable mesh plate is continuously shaken off, so that the device can be used for a long time in a dusty environment.

Description

Technical Field

[0001] The invention relates to the technical field of control equipment, in particular to a control equipment with intrinsically safe explosion-proof performance. Background Art

[0002] Intrinsically safe type is an explosion-proof type of electrical equipment. It limits the energy of electric sparks or thermal effects that may be generated by connecting wires inside the equipment and exposed to potentially explosive environments to a level that cannot produce ignition. The Chinese patent application number 202321206879.6 discloses a "flameproof and intrinsically safe PLC control box, including an intrinsically safe box, a touch screen installed on the front side of the intrinsically safe box, an explosion-proof PLC control box at the bottom of the intrinsically safe box, and a line buffer mechanism at the bottom of the explosion-proof PLC control box; the line buffer mechanism includes an inlet pipe, the line buffer mechanism is arranged at the bottom of the explosion-proof PLC control box, and the line buffer mechanism is arranged at the bottom of the explosion-proof PLC control box. On one side of the bottom of the explosion-proof PLC control box, a line inlet is provided on one side of the line inlet pipe, and on one side of the line inlet pipe, a line outlet is provided on the bottom of the explosion-proof PLC control box near the line inlet pipe. The line outlet is provided on one side of the line outlet pipe. The utility model effectively buffers the line by setting a line buffer mechanism to prevent the line from being damaged and leaking electricity due to the wires being stretched at different angles when an outside operator accidentally hits the wires, and prevents leakage from causing explosions in an environment filled with flammable and explosive gases, thereby improving the explosion-proof effect of the overall PLC control box, with good explosion-proof effect and higher safety.

[0003] This technical solution only solves the problem of workers accidentally bumping into electric wires, causing damage to the wires and leakage of electricity, which generates sparks and explosions when in contact with flammable and explosive gases. Currently, intrinsically safe control equipment such as PLC control equipment usually needs to keep working for a long time, and when used in dusty environments, intrinsically safe control equipment often cannot effectively avoid preventing dust from entering the interior of the control equipment while dissipating heat. Dust entering the interior of the control equipment not only affects heat dissipation, but also easily causes unstable operation of the control equipment. Summary of the invention

[0004] The object of the present invention is to provide a control device with intrinsically safe explosion-proof performance to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a control device with intrinsically safe explosion-proof performance, comprising a control device housing, an intrinsically safe control device is fixedly installed inside the control device housing by bolts, and a control cabinet is fixedly installed outside the control device housing by bolts;

[0006] The reciprocating mechanism comprises an air pumping box, an air bag and a reciprocating plate. The air pumping box is fixedly mounted on the front bottom end of the control device housing by bolts. There are two air bags, which are movably arranged on both sides of the interior of the air pumping box. There are two reciprocating plates, which are movably mounted on the interior of the air pumping box by sliding, and are fixedly mounted on one end of the two air bags near the middle of the interior of the air pumping box by bolts.

[0007] A dust-isolating mechanism, the dust-isolating mechanism comprising a dust-isolating belt and a hard brush, the dust-isolating belts having two in total and being movably arranged at two ends of the interior of the vacuum box, and the hard brush being movably connected to the dust-isolating belts;

[0008] The dust removal mechanism comprises a support frame and a knocking plate. There are two support frames and they are respectively fixed at the two ends of the bottom of the exhaust box by bolts. There are two knocking plates and they are both movably installed on the front side of the support frame by a rotating shaft.

[0009] The driving mechanism includes a connecting shaft, a rocker and a cam. There are two connecting shafts, both of which are movably installed on the front side of the vacuum box through bearings. There are two rockers, and the bottom ends are fixedly sleeved on the two connecting shafts by bolts. There are two cams, which are fixedly sleeved on the ends of the two connecting shafts away from the vacuum box by bolts.

[0010] Preferably, the reciprocating mechanism includes a first air inlet, a fixed mesh plate and an air inlet frame, the first air inlet is opened at the left and right ends of the air extraction box, the fixed mesh plates are two in total and are respectively fixedly installed in the two first air inlets by bolts, the air intake frame is two in total and are respectively fixedly installed at the two ends of the interior of the air extraction box by bolts, and the end of the airbag close to the fixed mesh plate is fixedly installed on the side of the air intake frame away from the fixed mesh plate by bolts.

[0011] Preferably, the reciprocating mechanism includes a reciprocating groove, a reciprocating frame and a guide rail, the reciprocating groove is opened at the top of the air pumping box, the reciprocating frame is installed in the reciprocating groove by insertion, the reciprocating frame is fixed by bolts on the side of the reciprocating plate away from the airbag, the guide rail is fixed by bolts on the front side of the control device housing and is located above the air pumping box, and the end of the reciprocating frame close to the control device housing is installed in the guide rail by insertion.

[0012] Preferably, the dust isolation mechanism includes a transmission roller, a driving roller and a transmission shaft. There are two groups of transmission rollers, which are movably mounted on the two ends of the interior of the air extraction box through bearings. There are two driving rollers, which are movably mounted on the two ends of the interior of the air extraction box through bearings, respectively. The transmission rollers and the driving rollers are arranged in an L shape, and the dust isolation belt is movably sleeved on the transmission roller and the driving roller. There are two transmission shafts, and the top ends are movably mounted on both sides of the top of the air extraction box through bearings, and are respectively located between the fixed mesh plate and the air intake frame.

[0013] Preferably, the dust isolation mechanism includes a gear, a rack and a connecting frame. The gear is fixedly sleeved on the top of the transmission shaft outside the vacuum box by bolts, and the rack is fixedly installed in the middle of the top of the reciprocating frame by bolts. The rack and the gear are movably connected by meshing. There are two connecting frames on each transmission shaft, and they are fixed on the transmission shaft by bolts at an angle of ninety degrees.

[0014] Preferably, the dust removal mechanism includes a second air inlet, a support plate, a movable mesh plate and a spring, the second air inlet is opened at both ends of the bottom of the air exhaust box, the support frame is arranged at the second air inlet, the support plate is fixedly installed in the middle of the bottom end of the second air inlet by bolts, the bottom end of the transmission shaft is movably installed in the middle of the support plate through a bearing, the middle of the movable mesh plate is movably sleeved on the bottom end of the transmission shaft, the spring is movably sleeved on the bottom end of the transmission shaft and is located between the movable mesh plate and the support plate, and one end of the knocking plate is located in the support frame and is movably connected to the movable mesh plate.

[0015] Preferably, the driving mechanism includes a movable groove, a first worm gear, a connecting rod, a first worm and a motor, the movable groove is opened at the top end of the rocker, the end of the reciprocating frame away from the control device housing is movably installed in the movable groove by insertion, the first worm gear is movably installed on the front side of the control device housing through a rotating shaft, the two ends of the connecting rod are respectively movably installed at the end of the cam away from the connecting shaft and the edge of the first worm gear through a rotating shaft, the first worm gear is movably installed at the bottom end of the front side of the vacuum box, the first worm gear is movably installed at the bottom end of the first worm gear by meshing, and the motor is fixed to the front side of the bottom end of the vacuum box by bolts.

[0016] Preferably, the driving mechanism includes a first belt, a second worm wheel, a second worm, a second belt and a protruding rod, the two ends of the first belt are movably sleeved on the middle of the output shaft of the motor and the first worm, the second worm wheel is fixedly sleeved on the bottom end of the transmission shaft outside the air pumping box by bolts, the second worm is movably installed on the bottom end of the air pumping box by a bearing, and is movably installed with the second worm wheel by meshing, the two ends of the second belt are movably sleeved on the middle of the output shaft of the motor and the second worm, there are two protruding rods and they are fixedly sleeved on the two ends of the second worm by bolts, and the end of the knocking plate outside the support frame is located between the bottom end of the air pumping box and the protruding rod, and is movably connected to the protruding rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention drives the air bag to perform suction and exhaust by driving the reciprocating plate, so that a large amount of external air is sucked in, thereby increasing the air intake volume of the control device housing, improving the heat dissipation capacity of the intrinsically safe control device, and ensuring the stability of the intrinsically safe control device. Dust in the air entering the suction box is blocked by the fixed mesh plate and the movable mesh plate, and then the air discharged by the air bag blows off the dust retained on the fixed mesh plate and the movable mesh plate, thereby preventing the fixed mesh plate and the movable mesh plate from being blocked after long-term use, thereby improving the dust blocking capacity. The fine dust in the air entering the suction box is blocked by the dust isolation belt, so that the air entering the control device housing does not carry dust. The dust retained on the surface of the dust isolation belt is brushed off by a hard brush, so that the dust isolation belt maintains its dust isolation capacity. The movable mesh plate is continuously lifted up by the knocking plate, so that the dust accumulated on the movable mesh plate is continuously shaken off, thereby improving the dust blocking capacity of the equipment and enabling the equipment to be used for a long time in a dusty environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of an inner shell and an intrinsically safe control device is provided for an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a driving mechanism provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the internal cross-sectional structure of an air extraction box provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a dust isolation mechanism provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a dust removal mechanism provided in an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the cross-sectional structure of a support frame provided in an embodiment of the present invention.

[0026] In the figure: 1. Control device housing; 2. Intrinsically safe control device; 3. Reciprocating mechanism; 301. Air extraction box; 302. First air inlet; 303. Fixed mesh plate; 304. Air inlet frame; 305. Air bag; 306. Reciprocating plate; 307. Reciprocating groove; 308. Reciprocating frame; 309. Guide rail; 4. Dust-proof mechanism; 401. Transmission roller; 402. Driving roller; 403. Dust-proof belt; 404. Transmission shaft; 405. Gear; 406. Rack; 407. Connecting frame; 408. Hard brush; 5. Dust removal mechanism; 501. Second air inlet; 502. Support frame; 503. Support plate; 504. Movable mesh plate; 505. Spring; 506. Knocking plate; 6. Driving mechanism; 601. Connecting shaft; 602. Rocker; 603. Movable groove; 604. Cam; 605. First worm gear; 606. Connecting rod; 607. First worm; 608. Motor; 609. First belt; 610. Second worm gear; 611. Second worm; 612. Second belt; 613. Protruding rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a control device with intrinsically safe explosion-proof performance, comprising a control device housing 1, an intrinsically safe control device 2 is fixedly installed inside the control device housing 1 by bolts, and a control cabinet is fixedly installed outside the control device housing 1 by bolts;

[0029] The reciprocating mechanism 3 includes an air pumping box 301, an air bag 305 and a reciprocating plate 306. The air pumping box 301 is fixedly mounted on the front bottom end of the control device housing 1 by bolts. There are two air bags 305, which are movably arranged on both sides of the inside of the air pumping box 301. There are two reciprocating plates 306, which are movably mounted on the inside of the air pumping box 301 by sliding, and are fixedly mounted on one end of the two air bags 305 close to the middle of the inside of the air pumping box 301 by bolts.

[0030] The dust-isolating mechanism 4 includes a dust-isolating belt 403 and a hard brush 408. There are two dust-isolating belts 403, which are movably arranged at two ends of the inside of the vacuum box 301, and the hard brush 408 is movably connected to the dust-isolating belt 403.

[0031] The dust removal mechanism 5 includes a support frame 502 and a knocking plate 506. There are two support frames 502, which are respectively fixed at the two ends of the bottom of the exhaust box 301 by bolts. There are two knocking plates 506, which are both movably installed on the front side of the support frame 502 through a rotating shaft.

[0032] The driving mechanism 6 comprises a connecting shaft 601, a rocking arm 602 and a cam 604. There are two connecting shafts 601, both of which are movably mounted on the front side of the vacuum box 301 through bearings. There are two rocking arms 602, and the bottom ends are respectively fixedly sleeved on the two connecting shafts 601 by bolts. There are two cams 604, which are respectively fixedly sleeved on the ends of the two connecting shafts 601 away from the vacuum box 301 by bolts.

[0033] The reciprocating mechanism 3 includes a first air inlet 302, a fixed mesh plate 303 and an air inlet frame 304. The first air inlet 302 is opened at the left and right ends of the air extraction box 301. There are two fixed mesh plates 303 and they are fixedly installed in the two first air inlets 302 by bolts respectively. There are two air inlet frames 304 and they are fixedly installed at the two ends of the inside of the air extraction box 301 by bolts respectively. One end of the air bag 305 close to the fixed mesh plate 303 is fixedly installed on the side of the air inlet frame 304 away from the fixed mesh plate 303 by bolts; the air is extracted and exhausted by the air bag 305, and the air outside the air extraction box 301 is drawn into through the first air inlet 302 and the second air inlet 501, thereby increasing the air intake volume of the control device housing 1, improving the heat dissipation capacity of the intrinsically safe control device 2, and making the intrinsically safe control device 2 maintain stable operation;

[0034] The reciprocating mechanism 3 includes a reciprocating groove 307, a reciprocating frame 308 and a guide rail 309. The reciprocating groove 307 is provided at the top of the air extraction box 301. The reciprocating frame 308 is installed in the reciprocating groove 307 by means of insertion. The reciprocating frame 308 is fixedly installed on the side of the reciprocating plate 306 away from the air bag 305 by means of bolts. The guide rail 309 is fixedly installed on the front side of the control device housing 1 by means of bolts and is located above the air extraction box 301. The end of the reciprocating frame 308 close to the control device housing 1 is installed in the guide rail 309 by means of insertion. The reciprocating frame 308 drives the reciprocating plate 306 to reciprocate in the air extraction box 301. When the reciprocating plate 306 reciprocates, air is extracted and exhausted through the air bag 305.

[0035] The dust-proof mechanism 4 comprises a transmission roller 401, a driving roller 402 and a transmission shaft 404. There are two groups of transmission rollers 401, which are movably mounted at the two ends of the interior of the air extraction box 301 through bearings. There are two driving rollers 402, which are movably mounted at the two ends of the interior of the air extraction box 301 through bearings, respectively. There are two driving rollers 402, which are movably mounted at the two ends of the interior of the air extraction box 301 through bearings, close to the air inlet frame 304 and away from the control device housing 1. The transmission rollers 401 and the driving rollers 402 are arranged in an L shape. The dust-proof belt 403 is movably sleeved on the transmission rollers 401 and the driving rollers 402. There are two transmission shafts 404, and the top ends are movably mounted on both sides of the top of the air extraction box 301 through bearings, and are respectively located between the fixed mesh plate 303 and the air inlet frame 304; the dust-proof belt 403 is driven to rotate by the driving roller 402, so that the dust retained on the dust-proof belt 403 moves with the dust-proof belt 403.

[0036] The dust-proof mechanism 4 includes a gear 405, a rack 406 and a connecting frame 407. The gear 405 is fixedly sleeved on the top of the transmission shaft 404 outside the air extraction box 301 by bolts, and the rack 406 is fixedly installed in the middle of the top of the reciprocating frame 308 by bolts. The rack 406 and the gear 405 are connected by meshing activities. There are two connecting frames 407 on each transmission shaft 404, and they are fixedly installed on the transmission shaft 404 by bolts at an angle of ninety degrees; when the reciprocating frame 308 moves back and forth, the rack 406 is driven to move back and forth at the same time. When the rack 406 contacts the gear 405, it drives the gear 405 to reciprocate. At this time, the transmission shaft 404 reciprocates with the gear 405. At this time, the hard brush 408 is driven by the connecting frame 407 to continuously reciprocate in the air extraction box 301, and the dust retained on the surface of the dust-proof belt 403 is brushed off by the hard brush 408, so that the dust-proof belt 403 maintains its dust-proof ability.

[0037] The dust removal mechanism 5 includes a second air inlet 501, a support plate 503, a movable mesh plate 504 and a spring 505. The second air inlet 501 is opened at both ends of the bottom of the air extraction box 301. The support frame 502 is arranged at the second air inlet 501. The support plate 503 is fixedly installed in the middle of the bottom end of the second air inlet 501 by bolts. The bottom end of the transmission shaft 404 is movably installed in the middle of the support plate 503 through a bearing. The middle of the movable mesh plate 504 is movably sleeved on the bottom end of the transmission shaft 404. The spring 505 is movably mounted on the bottom end of the transmission shaft 404. The movable sleeve is connected to the bottom end of the transmission shaft 404 and is located between the movable mesh plate 504 and the support plate 503. One end of the knocking plate 506 located in the support frame 502 is movably connected to the movable mesh plate 504; the movable mesh plate 504 is continuously lifted up by the end of the knocking plate 506 located in the support frame 502, and the movable mesh plate 504 is reset by the spring 505, so that the dust accumulated on the movable mesh plate 504 is continuously shaken off, thereby improving the dust barrier capability of the device and enabling the device to be used for a long time in a dusty environment;

[0038] The driving mechanism 6 includes a movable groove 603, a first worm wheel 605, a connecting rod 606, a first worm 607 and a motor 608. The movable groove 603 is opened at the top of the rocker 602. The end of the reciprocating frame 308 away from the control device housing 1 is movably installed in the movable groove 603 by insertion. The first worm wheel 605 is movably installed on the front side of the control device housing 1 through a rotating shaft. The two ends of the connecting rod 606 are movably installed at the end of the cam 604 away from the connecting shaft 601 and the edge of the first worm wheel 605 through a rotating shaft. The first worm 607 is movably installed on the front side of the control device housing 1 through a rotating shaft. At the front bottom end of the air extraction box 301, the first worm 607 is installed at the bottom end of the first worm wheel 605 through meshing, and the motor 608 is fixedly installed at the front side of the bottom end of the air extraction box 301 through bolts; the cam 604 is driven to rotate by the connecting rod 606, so that the connecting shaft 601 rotates following the cam 604, and the rocker 602 is driven to reciprocate through the connecting shaft 601, and then the reciprocating frame 308 is driven to reciprocate in the reciprocating groove 307 through the rocker 602, and the reciprocating plate 306 is driven to reciprocate in the air extraction box 301 through the reciprocating frame 308;

[0039] The driving mechanism 6 includes a first belt 609, a second worm wheel 610, a second worm 611, a second belt 612 and a protruding rod 613. The two ends of the first belt 609 are respectively movably sleeved between the output shaft of the motor 608 and the middle of the first worm 607. The second worm wheel 610 is fixedly sleeved on the bottom end of the transmission shaft 404 outside the air extraction box 301 by bolts. The second worm 611 is movably installed at the bottom end of the air extraction box 301 through a bearing and is movably installed with the second worm wheel 610 by meshing. The two ends of the second belt 612 are respectively movably sleeved between the output shaft of the motor 608 and the second worm 61 1, there are two protruding rods 613 and they are respectively fixedly sleeved on the two ends of the second worm 611 by bolts, one end of the knocking plate 506 located outside the support frame 502 is located between the bottom end of the vacuum box 301 and the protruding rod 613, and is movably connected with the protruding rod 613; the second belt 612 drives the second worm 611 to rotate, and the second worm 611 drives the second worm wheel 610 to rotate, so that the driving roller 402 rotates with the second worm wheel 610, and when the driving roller 402 rotates, the dust isolation belt 403 is driven to rotate, so that the dust retained on the dust isolation belt 403 moves with the dust isolation belt 403.

[0040] Working principle: When the present invention is in use, the motor 608 is started, and the first belt 609 is used to drive the first worm 607 to rotate. When the first worm 607 rotates, the first worm wheel 605 is driven to rotate. When the first worm wheel 605 rotates, the cam 604 is driven to rotate through the connecting rod 606, so that the connecting shaft 601 rotates following the cam 604, and the rocker 602 is driven to perform reciprocating swinging motion through the connecting shaft 601, and then the reciprocating frame 308 is driven to reciprocate in the reciprocating groove 307 through the rocker 602, and the reciprocating plate 306 is driven to reciprocate in the air extraction box 301 through the reciprocating frame 308. When the reciprocating plate 306 reciprocates, air is extracted and exhausted through the air bag 305, and the air outside the air extraction box 301 is drawn into through the first air inlet 302 and the second air inlet 501, thereby increasing the air intake of the control device housing 1, improving the heat dissipation capacity of the intrinsically safe control device 2, and allowing the intrinsically safe control device 2 to maintain stable operation;

[0041] The air entering the exhaust box 301 from the first air inlet 302 is initially blocked by dust through the fixed mesh plate 303, and the air entering the exhaust box 301 from the second air inlet 501 is initially blocked by dust through the movable mesh plate 504. When the reciprocating plate 306 moves toward the first air inlet 302, it is in the exhaust state. A part of the gas enters the control device housing 1, and the other part of the gas is still discharged through the first air inlet 302 and the second air inlet 501. The discharged air blows off the dust trapped on the fixed mesh plate 303 and the movable mesh plate 504, thereby preventing the fixed mesh plate 303 and the movable mesh plate 504 from being blocked after long-term use, thereby improving the dust blocking ability.

[0042] The air entering the exhaust box 301 still carries fine dust. The air about to enter the control device housing 1 is filtered through the dust isolation belt 403, so that the fine dust is blocked and retained on the dust isolation belt 403. After the motor 608 is started, the second belt 612 drives the second worm 611 to rotate, and the second worm 611 drives the second worm wheel 610 to rotate, so that the driving roller 402 rotates with the second worm wheel 610. When the driving roller 402 rotates, it drives the dust isolation belt 403 to rotate, so that the dust isolation belt 403 is The retained dust moves with the dust-isolating belt 403, and when the reciprocating frame 308 reciprocates, the rack 406 is driven to reciprocate at the same time. When the rack 406 contacts the gear 405, the gear 405 is driven to reciprocate. At this time, the transmission shaft 404 reciprocates with the gear 405. At this time, the hard brush 408 is driven to reciprocate continuously in the exhaust box 301 through the connecting frame 407, and the dust retained on the surface of the dust-isolating belt 403 is brushed off by the hard brush 408, so that the dust-isolating belt 403 maintains its dust-isolating ability.

[0043] The dust brushed off the dust isolation belt 403 falls on the movable mesh plate 504 under the combined effect of its own gravity and exhaust gas. When the second worm gear 611 rotates, the convex rod 613 continuously lifts up one end of the knocking plate 506 located between the convex rod 613 and the vacuum box 301. After being lifted up, the knocking plate 506 falls down again due to its own gravity, so that the knocking plate 506 rotates up and down, and the movable mesh plate 504 is continuously lifted up by one end of the knocking plate 506 located in the support frame 502, and then the movable mesh plate 504 is driven to reset by the spring 505, so that the dust accumulated on the movable mesh plate 504 is continuously shaken off, thereby improving the dust blocking ability of the device and allowing the device to be used for a long time in a dusty environment.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control device with intrinsically safe explosion-proof performance, comprising a control device housing (1), an intrinsically safe control device (2) being fixedly mounted inside the control device housing (1), and a control cabinet being fixedly mounted outside the control device housing (1), characterized in that: A reciprocating mechanism (3), the reciprocating mechanism (3) comprising an air pumping box (301), an air bag (305) and a reciprocating plate (306), the air pumping box (301) being fixedly mounted on the front bottom end of the control device housing (1), the air bags (305) comprising two pieces and being movably mounted on two sides of the interior of the air pumping box (301), the reciprocating plates (306) comprising two pieces, both being movably mounted on the interior of the air pumping box (301) and being fixedly mounted on one end of the two air bags (305) close to the middle of the interior of the air pumping box (301); The reciprocating mechanism (3) further comprises a first air inlet (302) and a reciprocating frame (308), wherein the first air inlet (302) is provided at the left and right ends of the air extraction box (301), and the reciprocating frame (308) is fixedly mounted on a side of the reciprocating plate (306) away from the air bag (305) by means of bolts, and the reciprocating frame (308) drives the reciprocating plate (306) to perform reciprocating motion in the air extraction box (301), and when the reciprocating plate (306) performs reciprocating motion, air is extracted and exhausted through the air bag (305); A dust isolation mechanism (4), the dust isolation mechanism (4) comprising a dust isolation belt (403) and a hard brush (408), the dust isolation belt (403) having two parts and movably arranged at two ends inside the air extraction box (301), the hard brush (408) being movably connected to the dust isolation belt (403), filtering air about to enter the control device housing (1) through the dust isolation belt (403), and brushing dust retained on the surface of the dust isolation belt (403) off through the hard brush (408); A dust removal mechanism (5), the dust removal mechanism (5) comprising a support frame (502) and a knocking plate (506), the support frames (502) being two in total and being fixedly mounted at two ends of the bottom of the exhaust box (301), and the knocking plates (506) being two in total and being movably mounted on the front side of the support frame (502); The dust removal mechanism (5) further comprises a movable mesh plate (504), one end of the knocking plate (506) located in the support frame (502) is movably connected to the movable mesh plate (504), and the dust brushed off the dust isolation belt (403) falls on the movable mesh plate (504) under the combined effect of its own gravity and exhaust gas, and the movable mesh plate (504) is continuously lifted up by the end of the knocking plate (506) located in the support frame (502); A driving mechanism (6), the driving mechanism (6) comprising a connecting shaft (601), a rocking lever (602) and a cam (604), the connecting shafts (601) comprising two and movably mounted on the front side of the air extraction box (301), the rocking levers (602) comprising two and the bottom ends of which are respectively fixedly sleeved on the two connecting shafts (601), and the cams (604) comprising two and respectively fixedly sleeved on the ends of the two connecting shafts (601) away from the air extraction box (301); The driving mechanism (6) further comprises a movable groove (603), wherein the movable groove (603) is formed at the top end of the rocker (602), and an end of the reciprocating frame (308) away from the control device housing (1) is movably installed in the movable groove (603) by insertion.

2. A control device with intrinsically safe explosion-proof performance according to claim 1, characterized in that: The reciprocating mechanism (3) comprises a fixed mesh plate (303) and an air intake frame (304); the fixed mesh plates (303) are in total two pieces and are respectively fixedly mounted in two first air intake ports (302) by means of bolts; the air intake frame (304) are in total two pieces and are respectively fixedly mounted at two ends of the interior of the air extraction box (301) by means of bolts; and one end of the air bag (305) close to the fixed mesh plate (303) is fixedly mounted on a side of the air intake frame (304) away from the fixed mesh plate (303) by means of bolts.

3. The control device with intrinsically safe explosion-proof performance according to claim 2, characterized in that: The reciprocating mechanism (3) comprises a reciprocating groove (307) and a guide rail (309); the reciprocating groove (307) is opened at the top of the air extraction box (301); the reciprocating frame (308) is installed in the reciprocating groove (307) by means of insertion; the guide rail (309) is fixedly installed on the front side of the control device housing (1) by means of bolts and is located above the air extraction box (301); and one end of the reciprocating frame (308) close to the control device housing (1) is installed in the guide rail (309) by means of insertion.

4. The control device with intrinsically safe explosion-proof performance according to claim 3, characterized in that: The dust-isolating mechanism (4) comprises a transmission roller (401), a driving roller (402) and a transmission shaft (404); the transmission roller (401) comprises two groups, which are movably mounted on two ends of the interior of the air extraction box (301) via bearings; the driving roller (402) comprises two groups, which are movably mounted on two ends of the interior of the air extraction box (301) via bearings, respectively; the transmission roller (401) and the driving roller (402) are arranged in an L shape with the transmission roller (401) and the driving roller (402); the dust-isolating belt (403) is movably sleeved on the transmission roller (401) and the driving roller (402); the transmission shaft (404) comprises two groups, and the top ends are movably mounted on two sides of the top end of the air extraction box (301) via bearings, respectively, and are located between the fixed mesh plate (303) and the air intake frame (304), respectively.

5. The control device with intrinsically safe explosion-proof performance according to claim 4, characterized in that: The dust isolation mechanism (4) comprises a gear (405), a rack (406) and a connecting frame (407); the gear (405) is sleeved on the top end of the transmission shaft (404) outside the vacuum box (301) by means of bolts; the rack (406) is fixedly mounted in the middle of the top end of the reciprocating frame (308) by means of bolts; the rack (406) and the gear (405) are movably connected by meshing; and there are two connecting frames (407) on each transmission shaft (404), and the connecting frames (407) are fixedly mounted on the transmission shaft (404) by means of bolts at an angle of ninety degrees.

6. The control device with intrinsically safe explosion-proof performance according to claim 5, characterized in that: The dust removal mechanism (5) comprises a second air inlet (501), a support plate (503) and a spring (505); the second air inlet (501) is opened at both ends of the bottom of the air extraction box (301); the support frame (502) is arranged at the second air inlet (501); the support plate (503) is fixedly mounted in the middle of the bottom end of the second air inlet (501) by means of bolts; the bottom end of the transmission shaft (404) is movably mounted in the middle of the support plate (503) by means of a bearing; the middle of the movable mesh plate (504) is movably sleeved on the bottom end of the transmission shaft (404); and the spring (505) is movably sleeved on the bottom end of the transmission shaft (404) and is located between the movable mesh plate (504) and the support plate (503).

7. The control device with intrinsically safe explosion-proof performance according to claim 6, characterized in that: The driving mechanism (6) comprises a first worm gear (605), a connecting rod (606), a first worm (607) and a motor (608); the first worm gear (605) is movably mounted on the front side of the control device housing (1) via a rotating shaft; both ends of the connecting rod (606) are movably mounted on the edge of the first worm gear (605) at one end of the cam (604) away from the connecting shaft (601) via a rotating shaft; the first worm gear (607) is movably mounted on the front bottom end of the vacuum box (301); the first worm gear (607) is movably mounted on the bottom end of the first worm gear (605) via meshing; and the motor (608) is fixedly mounted on the front side of the bottom end of the vacuum box (301) via bolts.

8. The control device with intrinsically safe explosion-proof performance according to claim 7, characterized in that: The driving mechanism (6) comprises a first belt (609), a second worm wheel (610), a second worm (611), a second belt (612) and a protruding rod (613), wherein the two ends of the first belt (609) are respectively movably sleeved between the output shaft of the motor (608) and the middle of the first worm (607), the second worm wheel (610) is fixedly sleeved on the bottom end of the transmission shaft (404) outside the air pumping box (301) by means of bolts, and the second worm (611) is movably mounted on the air pumping box (301) by means of a bearing. 01), and is movably mounted with the second worm gear (610) by meshing, the two ends of the second belt (612) are movably sleeved between the output shaft of the motor (608) and the middle of the second worm gear (611), there are two protruding rods (613) and they are respectively fixedly sleeved on the two ends of the second worm gear (611) by bolts, and one end of the knocking plate (506) located outside the support frame (502) is located between the bottom end of the vacuum box (301) and the protruding rod (613), and is movably connected to the protruding rod (613).

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