CN115291099B - Power distribution switch testing device for electromechanical assembly - Google Patents

Abstract

The invention discloses a power distribution switch testing device for an electromechanical assembly, which relates to the technical field of power distribution switch testing and comprises an outer frame body, a ventilation assembly and an air supply assembly, wherein testing boxes are fixed on two sides in the outer frame body, a power supply device is arranged in each testing box, a hydraulic rod is arranged above the inner part of the outer frame body, an explosion-proof frame is fixed below the hydraulic rod, ventilation frames are fixed above the left side and the right side of each explosion-proof frame, an air outlet pipe is connected above each ventilation frame, the ventilation assembly is arranged in each ventilation frame, and the ventilation assembly comprises a filter chamber and an air supply chamber. This a distribution switch testing arrangement for electromechanical component can protect distribution switch through explosion-proof frame, improves the safety in utilization to can burn out or catch fire the condition that the condition carries out timely ventilation fire extinguishing processing to distribution switch short circuit part that the test goes wrong and leads to through ventilation module and the subassembly of supplying gas.

Description

Power distribution switch testing device for electromechanical assembly

Technical Field

The invention relates to the technical field of power distribution switch testing, in particular to a power distribution switch testing device for an electromechanical assembly.

Background

The distribution switch is an important component of an electromechanical assembly, and the distribution line switch is a device for providing overload and short-circuit protection for a load connected to main distribution equipment, has the function of switching on and off current, and can switch on and off fault short-circuit current and switching on and off load current. In order to ensure the safety of the power distribution switch, the power distribution switch needs to be tested, and a testing device needs to be used in the testing process of the power distribution switch.

The invention discloses a test box based on a high-low voltage distribution switch, which comprises a box body, wherein a motor is fixedly connected to the top of the inner wall of the box body, a first belt pulley is fixedly connected to an output shaft of the motor, a belt is connected to the surface of the first belt pulley in a transmission manner, a second belt pulley is connected to one side, away from the first belt pulley, of the belt in a transmission manner, a threaded rod is fixedly connected to the axis of the second belt pulley, two ends of the threaded rod are rotatably connected with the inner wall of the box body, a threaded block is connected to the surface of the threaded rod in a threaded manner, a fixing rod is fixedly connected to the front side of the threaded block, and a rotating plate is slidably connected to the surface of the fixing rod through a sliding groove. This based on high low voltage distribution is test box for switch, the convenience can extrude the test after the switch chucking, ensures to carry out the contact extrusion to the switch in the test, very big promotion the accuracy nature of test, guarantee the accuracy of test result, it is extravagant to have reduced unnecessary.

The test box for distribution switches similar to the above application currently has the following disadvantages:

in the testing process, for the condition that a short-circuit component of a power distribution switch is burnt out or a fire is caught due to the problem of the test, a certain improvement space exists in the conventional ventilation and fire extinguishing treatment structure.

In view of the above, research and improvement are made on the conventional structure and defects, and a power distribution switch testing device for an electromechanical assembly is provided to achieve the purpose of higher practical value.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention provides a testing device for a power distribution switch of an electromechanical assembly, which solves the problems set forth in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a distribution switch testing arrangement for electromechanical component, includes outer frame body, ventilation subassembly and supplies air the subassembly, the inside both sides of outer frame body all are fixed with the test box, and the inside of test box is provided with power supply unit, the hydraulic stem is installed to the inside top of outer frame body, and the below of hydraulic stem is fixed with explosion-proof frame, the left and right sides top of explosion-proof frame all is fixed with the ventilation frame, and the top of ventilation frame is connected with the outlet duct, ventilation unit mount is in the inside of ventilation frame, and ventilation subassembly includes filter chamber and supply-air chamber, filter chamber and supply-air chamber are located the inside left and right sides of ventilation frame respectively, the aspiration pump is installed to the left and right sides below of explosion-proof frame, and is connected with the subassembly of supplying air between aspiration pump and the ventilation frame, the subassembly of supplying air includes first supply pipe, first control valve, blast pipe, second supply pipe, second control valve, the top mid-mounting of first supply pipe has first control valve, and the top of second supply pipe is connected with the blast pipe.

Furthermore, a mounting plate is fixed on one side of the test box close to the central line of the outer frame body, and three groups of mounting plates are arranged in parallel.

Furthermore, infrared temperature sensor is installed to the inside top of explosion-proof frame, and the left and right sides lower wall department of explosion-proof frame is provided with the threading subassembly, outside one side of outer frame body is rotated through the hinge and is installed the control panel.

Furthermore, the threading subassembly includes the threading frame, crosses the wire casing, abrasionproof rubber layer, adjustable fender, the inside of threading frame is provided with the wire casing, and the inner wall that crosses the wire casing pastes and has the abrasionproof rubber layer, the outside upside of threading frame is connected with adjustable fender through the hinge rotation.

Furthermore, the ventilation assembly further comprises a filtering cotton layer, a bamboo charcoal filtering layer, an activated carbon filtering layer and a water purification tank, wherein the filtering cotton layer, the bamboo charcoal filtering layer and the activated carbon filtering layer are sequentially arranged in the filtering chamber from top to bottom, and the water purification tank is arranged below the inside of the filtering chamber.

Furthermore, the ventilation assembly further comprises an exhaust port, the exhaust port is formed in one side, close to the filter chamber, of the air supply chamber, the number of the exhaust ports is three, and the left side and the upper side of each exhaust port are both of an opening-shaped structure.

Furthermore, the first air supply pipe is communicated with the filtering chamber through the exhaust pipe, and the upper side of the exhaust pipe is of an M-shaped structure.

Furthermore, the first air supply pipe and the second air supply pipe are communicated with each other, and the second air supply pipe and the air supply chamber are communicated with each other.

Furthermore, the inside of the placing plate is provided with a conveying belt, a waste hopper is fixed on the outer side of the rear part of the placing plate, and a cleaning assembly is installed on the upper side of the rear part of the placing plate.

Further, the clearance subassembly includes telescopic link, micro motor, bull stick, sideboard and cleaning brush, the side fixed connection of telescopic link and place the board, and micro motor is installed to top one side of telescopic link, one side of micro motor is provided with the bull stick, and both sides are fixed with sideboard and cleaning brush respectively about the outside of bull stick.

The invention provides a power distribution switch testing device for an electromechanical assembly, which has the following beneficial effects:

this a distribution switch testing arrangement for electromechanical component can protect distribution switch through explosion-proof frame, improves the safety in utilization to can burn out or catch fire the condition that the condition carries out timely ventilation fire extinguishing processing to distribution switch short circuit part that the test goes wrong and leads to through ventilation module and the subassembly of supplying gas.

1. This a distribution switch testing arrangement for electromechanical component is provided with explosion-proof frame, be convenient for the position height of explosion-proof frame of lift adjustment through the hydraulic stem, explosion-proof frame adopts explosion-proof glass to make, can set up in distribution switch's outside, and then protect distribution switch, avoid appearing catching fire in the distribution switch testing process simultaneously, the condition such as burst influences the tester, the safety in utilization is improved, be convenient for carry out infrared detection to distribution switch's in the testing process temperature through infrared temperature sensor, the inside power supply unit of test box can supply power for distribution switch, and through the switch module, devices such as transformer rectifier carry out different current and voltage overload test, so that test distribution switch.

2. This a distribution switch testing arrangement for electromechanical component is provided with the threading subassembly, the cable that distribution switch test is connected can pass the inside wire casing of crossing of explosion-proof frame both sides wire casing to connect the electric test between distribution switch and the power supply unit, the condition that the cable in the wire casing appears wearing and tearing can be avoided in the setting of abrasionproof rubber layer, it covers the wire casing department of crossing of wire casing to be convenient for cover through rotating movable baffle when not using the wire casing and seals, and be convenient for cooperate the ventilation subassembly and carry out the evacuation to the inside of explosion-proof frame with the use of the subassembly of supplying gas.

3. The distribution switch testing device for the electromechanical assembly is provided with the air supply assembly, air or smoke inside the explosion-proof frame can be conveniently sent into the ventilation frame through the air pump and the air supply assembly, when a test problem occurs inside the explosion-proof frame and a distribution switch short-circuit part burns out, partial harmful smoke can be generated, the second control valve can be closed at the moment, the smoke is sent into the exhaust pipe through the air pump and the first air supply pipe, the smoke inside the exhaust pipe can enter a water purification water tank of the filtering chamber, when the distribution switch catches fire due to the test problem occurring inside the explosion-proof frame, the first control valve can be closed, the smoke is sent into the air supply chamber through the air pump and the second air supply pipe, the explosion-proof frame is rapidly vacuumized, and fire is extinguished through a vacuumizing mode.

4. This a distribution switch testing arrangement for electromechanical component is provided with ventilation assembly, be convenient for carry out preliminary cooling and purification filtration to the flue gas that enters into the filter chamber inside through the water purification water tank, through the active carbon filtering layer, the bamboo charcoal filtering layer, it filters the flue gas in proper order to filter the cotton layer of filtration, peculiar smell and particle composition in the absorption flue gas, so that through the flue gas after the outlet duct blowdown purifies, the air supply chamber structure is comparatively simple can supply air fast, and the air supply chamber can be sent into the inside of filter chamber through the gas vent and the filter chamber intercommunication each other and unified discharge after filtering with partial air.

5. This a distribution switch testing arrangement for electromechanical component is provided with the clearance subassembly, the operation through the transmission band is convenient for with the inside of the useless distribution switch of test back and the direct pay-off of spare part to rear waste material fill, and be convenient for lift adjustment micro motor through the telescopic link, the position height of bull stick, make bull stick and sideboard can stand still and intercept the complete distribution switch on the transmission band, and make the inside of partly cracked part can feed waste material fill down, in addition can also drive the rotation of sideboard and clearance brush through micro motor and bull stick, and then can adjust the position of clearance brush, make the clearance brush can clear up the surface of in-service transmission band.

Drawings

FIG. 1 is a schematic diagram of a front view of a power distribution switch testing apparatus for an electromechanical assembly in accordance with the present invention;

FIG. 2 is a schematic diagram of a side view of an explosion-proof frame of a testing apparatus for a power distribution switch of an electromechanical assembly according to the present invention;

FIG. 3 is an enlarged view of the interior of the ventilation frame of the testing device of the power distribution switch for the electromechanical assembly of the present invention, shown at A in FIG. 2;

FIG. 4 is a schematic top view of a mounting plate of the testing apparatus for an electrical distribution switch of an electromechanical assembly according to the present invention;

FIG. 5 is an enlarged schematic view of a power distribution switch testing apparatus for an electromechanical assembly at point A in FIG. 4 in accordance with the present invention;

fig. 6 is a schematic diagram of a testing system framework of a testing apparatus for a power distribution switch of an electromechanical assembly according to the present invention.

In the figure: 1. an outer frame body; 2. a test box; 3. a power supply device; 4. placing a plate; 5. a hydraulic lever; 6. an explosion-proof frame; 7. an infrared temperature measuring sensor; 8. a threading assembly; 801. a threading frame; 802. a wire passing groove; 803. an anti-abrasion rubber layer; 804. a movable baffle; 9. a ventilation frame; 10. a ventilation assembly; 1001. a filtering chamber; 1002. a filtration cotton layer; 1003. a bamboo charcoal filtering layer; 1004. an active carbon filter layer; 1005. a purified water tank; 1006. an air supply chamber; 1007. an exhaust port; 11. an air outlet pipe; 12. an air pump; 13. an air supply assembly; 1301. a first air supply pipe; 1302. a first control valve; 1303. an exhaust pipe; 1304. a second air supply pipe; 1305. a second control valve; 14. a conveyor belt; 15. a waste hopper; 16. cleaning the assembly; 1601. a telescopic rod; 1602. a micro motor; 1603. a rotating rod; 1604. a sideboard; 1605. cleaning a brush; 17. and (6) a control screen.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a distribution switch testing arrangement for electromechanical assembly, including outer frame 1, ventilation subassembly 10 and air feed subassembly 13, outer frame 1's inside both sides all are fixed with test box 2, and test box 2's inside is provided with power supply unit 3, outer frame 1's inside top is installed hydraulic stem 5, and hydraulic stem 5's below is fixed with explosion-proof frame 6, all be fixed with ventilation frame 9 above explosion-proof frame 6's the left and right sides, and ventilation frame 9's top is connected with outlet duct 11, ventilation subassembly 10 installs in ventilation frame 9's inside, and ventilation subassembly 10 includes filter chamber 1001 and plenum chamber 1006, filter chamber 1001 and plenum chamber 1006 are located ventilation frame 9's inside left and right sides respectively, air extracting pump 12 is installed to explosion-proof frame 6's left and right sides below, and be connected with air feed subassembly 13 between air extracting pump 12 and the ventilation frame 9, air feed subassembly 13 includes first delivery pipe 1301, first control valve 1302, exhaust pipe 1304, second air feed pipe 1305, second control valve 1305 is installed to the top mid-middle part of first air feed pipe 1302, and the top of first air feed pipe 1303 is connected with second control valve 1304, the top of air feed pipe 1304.

Referring to fig. 1 to 2, an infrared temperature measuring sensor 7 is installed above the interior of the explosion-proof frame 6, threading assemblies 8 are arranged on the lower walls of the left side and the right side of the explosion-proof frame 6, and a control screen 17 is rotatably installed on one side of the exterior of the outer frame 1 through a hinge;

the concrete operation is as follows, be convenient for lift adjustment explosion-proof frame 6's position height through hydraulic stem 5, explosion-proof frame 6 adopts explosion-proof glass to make, can set up in distribution switch's outside, and then protect distribution switch, avoid appearing catching fire in the distribution switch test process simultaneously, the condition influence testers such as explode and split, improve the safety in utilization, be convenient for carry out infrared detection to distribution switch's temperature in the test process through infrared temperature sensor 7, 2 inside power supply unit 3 of test box can supply power for distribution switch, and through the switch module, devices such as transformer rectifier carry out different current and voltage overload test, so that test distribution switch.

Referring to fig. 2, the threading assembly 8 includes a threading frame 801, a thread passing groove 802, an anti-abrasion rubber layer 803, and a movable baffle 804, wherein the thread passing groove 802 is disposed inside the threading frame 801, the anti-abrasion rubber layer 803 is adhered to the inner wall of the thread passing groove 802, and the movable baffle 804 is rotatably connected to the upper side of the exterior of the threading frame 801 through a hinge;

the cable connected in the power distribution switch test can pass through the wire passing grooves 802 in the wire passing frames 801 on two sides of the explosion-proof frame 6 so as to facilitate the power connection test between the power distribution switch and the power supply device 3, the abrasion of the cable in the wire passing grooves 802 can be avoided due to the arrangement of the abrasion-proof rubber layer 803, the wire passing grooves 802 of the wire passing frames 801 can be conveniently covered and sealed by rotating the movable baffle 804 when the wire passing grooves 802 are not used, and the interior of the explosion-proof frame 6 can be vacuumized by being matched with the ventilation assembly 10 and the air supply assembly 13.

Referring to fig. 3, the ventilation assembly 10 further includes a filter cotton layer 1002, a bamboo charcoal filter layer 1003, an activated carbon filter layer 1004, and a water purification tank 1005, wherein the filter cotton layer 1002, the bamboo charcoal filter layer 1003, and the activated carbon filter layer 1004 are sequentially disposed inside the filter chamber 1001 from top to bottom, and the water purification tank 1005 is disposed below the inside of the filter chamber 1001; the ventilation assembly 10 further comprises three exhaust ports 1007, wherein the exhaust ports 1007 are formed in one side of the air supply chamber 1006 close to the filter chamber 1001, and the left side and the upper side of each exhaust port 1007 are of an open structure;

the concrete operation is as follows, be convenient for carry out preliminary cooling and purification filtration to the inside flue gas that enters into filter chamber 1001 through water purification tank 1005, through activated carbon filtering layer 1004, bamboo charcoal filtering layer 1003, filter cotton layer 1002 is convenient for filter the flue gas in proper order, peculiar smell and particle composition in the absorption flue gas, so that through the flue gas after 11 blowdown purifications of outlet duct, air supply chamber 1006 structure is comparatively simple can supply air fast, and air supply chamber 1006 can send partial air into the inside of filter chamber through unified discharge after filtering through gas vent 1007 and filter chamber 1001 intercommunication each other.

Referring to fig. 3, the first air supply pipe 1301 is communicated with the filtering chamber 1001 through the exhaust pipe 1303, and the upper side of the exhaust pipe 1303 is in an "M" shape; the first air feed pipe 1301 and the second air feed pipe 1304 are communicated with each other, and the second air feed pipe 1304 is communicated with the air supply chamber 1006;

the operation is as follows, air or flue gas in the explosion-proof frame 6 can be conveniently sent into the ventilation frame 9 through the air suction pump 12 and the air supply assembly 13, when a test problem occurs in the explosion-proof frame 6, a short-circuit part of a distribution switch is burnt out, partial harmful flue gas can be generated, the second control valve 1305 can be closed at the moment, the flue gas is sent into the exhaust pipe 1303 through the air suction pump 12 and the first air supply pipe 1301, the flue gas in the exhaust pipe 1303 can enter the water purification water tank 1005 of the filter chamber 1001, when the test problem occurs in the explosion-proof frame 6, the distribution switch is on fire, the first control valve 1302 can be closed, the flue gas is sent into the air supply chamber 1006 through the air suction pump 12 and the second air supply pipe 1304, the explosion-proof frame 6 is quickly vacuumized, and fire is extinguished through a vacuumizing mode.

Referring to fig. 4 to 5, a mounting plate 4 is fixed on one side of the test box 2 close to the center line of the outer frame 1, three sets of mounting plates 4 are arranged in parallel, a conveyor belt 14 is arranged inside the mounting plate 4, a waste hopper 15 is fixed on the rear outer side of the mounting plate 4, and a cleaning assembly 16 is arranged on the rear upper side of the mounting plate 4; the cleaning assembly 16 comprises a telescopic rod 1601, a micro motor 1602, a rotating rod 1603, a baffle 1604 and a cleaning brush 1605, the telescopic rod 1601 is fixedly connected with the side edge of the placing plate 4, the micro motor 1602 is installed on one side above the telescopic rod 1601, the rotating rod 1603 is arranged on one side of the micro motor 1602, and the baffle 1604 and the cleaning brush 1605 are respectively fixed on the upper side and the lower side of the outer part of the rotating rod 1603;

the operation is as follows, the discarded distribution switch and spare part direct feeding after the test to the inside of rear waste bin 15 are convenient for through the operation of transmission band 14, and be convenient for lift adjustment micro motor 1602 through telescopic link 1601, the position height of bull stick 1603, make bull stick 1603 and sideboard 1604 can stand still and motionlessly to the intact distribution switch on the transmission band 14 intercept, and make the inside of partly cracked part blanking to waste bin 15, in addition can also drive the rotation of sideboard 1604 and cleaning brush 1605 through micro motor 1602 and bull stick 1603, and then can adjust the position of cleaning brush 1605, make cleaning brush 1605 can clear up the surface of transmission band 14 in service.

In conclusion, when the power distribution switch testing device for the electromechanical assembly is used, a power distribution switch to be tested can be placed on the upper side of the middle of a transmission belt 14 of a placing plate 4, a cable connected with the power distribution switch testing can be connected with a power supply device 3, the position height of an anti-explosion frame 6 can be adjusted through lifting of a hydraulic rod 5, the anti-explosion frame 6 is arranged outside the power distribution switch, the power distribution switch can be protected, the cable connected with the power distribution switch testing can penetrate through wire passing grooves 802 in wire passing frames 801 on two sides of the anti-explosion frame 6, the abrasion-proof rubber layer 803 can be arranged to avoid abrasion of the cable in the wire passing grooves 802, the unused wire passing grooves 802 can cover and seal the wire passing grooves 802 of the wire passing frames 801 through rotating movable baffles 804, the power supply device 3 in a testing box 2 is used for supplying power to the power distribution switch, different current and voltage overload tests can be carried out through devices such as a switch assembly and a transformer rectifier, a data analysis module arranged in a control screen 17 can be used for analyzing the overload test conditions of a tested piece, and the temperature of the power distribution switch in the testing process can be monitored through an infrared temperature sensor 7, and the temperature of the tested piece can be monitored;

when the explosion-proof frame 6 is used, the situation that fire catching, explosion cracking and the like occur in the testing process of a power distribution switch can be prevented from affecting testers, the use safety is improved, when the power distribution switch catches fire due to the fact that a testing problem occurs inside the explosion-proof frame 6, the first control valve 1302 can be closed, smoke is sent into the air supply chamber 1006 through the air suction pump 12 and the second air supply pipe 1304, the air supply chamber 1006 is simple in structure and can supply air quickly, the explosion-proof frame 6 is vacuumized quickly, fire is extinguished in a vacuumizing mode, and the air supply chamber 1006 is communicated with the filter chamber 1001 through the exhaust port 1007 and can send partial air into the filter chamber 1001 and discharge the air uniformly after being filtered;

when a test problem occurs inside the explosion-proof frame 6, and a power distribution switch short-circuit component is burned out, part of harmful smoke can be generated, and part of smoke can be possibly involved after fire extinguishment, at the moment, the second control valve 1305 can be closed, the smoke is sent into the exhaust pipe 1303 through the air suction pump 12 and the first air supply pipe 1301, so that the smoke inside the exhaust pipe 1303 can enter a water purification tank 1005 of the filter chamber 1001, then the smoke entering the filter chamber 1001 is subjected to preliminary cooling, purification and filtration through the water purification tank 1005, the smoke is sequentially filtered through the activated carbon filter layer 1004, the bamboo charcoal filter layer 1003 and the filter cotton layer 1002, peculiar smell and particle components in the smoke are adsorbed, and finally the purified smoke is discharged through the exhaust pipe 11;

after the test is finished, the waste power distribution switch and parts thereof after the test are directly fed into the rear waste hopper 15 through the operation of the conveying belt 14, in the process, the position height of the micro motor 1602 and the rotating rod 1603 can be adjusted through the lifting of the telescopic rod 1601, so that the rotating rod 1603 and the baffle plate 1604 can stand still to intercept the intact power distribution switch on the conveying belt 14, and parts which are partially broken can be fed into the waste hopper 15, in addition, the baffle plate 1604 and the cleaning brush 1605 can be driven to rotate through the micro motor 1602 and the rotating rod 1603, the orientation of the cleaning brush 1605 can be adjusted, the cleaning brush 1605 can clean the surface of the conveying belt 14 in operation, and the whole using process of the power distribution switch testing device for the electromechanical assembly is finished.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (4)

1. The power distribution switch testing device for the electromechanical assembly is characterized by comprising an outer frame body (1), a ventilation assembly (10) and an air supply assembly (13), wherein the two sides of the inner part of the outer frame body (1) are respectively fixed with a testing box (2), a power supply device (3) is arranged in the testing box (2), one side, close to the central line of the outer frame body (1), of the testing box (2) is fixed with a mounting plate (4), three groups of mounting plates (4) are arranged in parallel, a hydraulic rod (5) is arranged above the inner part of the outer frame body (1), an anti-explosion frame (6) is fixed below the hydraulic rod (5), an infrared sensor (7) is arranged above the inner part of the anti-explosion frame (6), threading assemblies (8) are arranged at the lower walls of the left side and the right side of the anti-explosion frame (6), each threading assembly (8) comprises a threading frame (801), a threading groove (802), an anti-abrasion rubber layer (803) and a movable baffle (804), the inner wall of the threading frame (801) is connected with an upper side of the anti-explosion frame (803), the ventilation frame (9) is connected with an air outlet pipe (9), the ventilation assembly (10) is installed in the ventilation frame (9), the ventilation assembly (10) comprises a filtering chamber (1001) and an air supply chamber (1006), the filtering chamber (1001) and the air supply chamber (1006) are respectively located on the left side and the right side of the interior of the ventilation frame (9), the ventilation assembly (10) further comprises air exhaust ports (1007), one side, close to the filtering chamber (1001), of the air supply chamber (1006) is provided with three air exhaust ports (1007), the left side and the upper side of each air exhaust port (1007) are of an opening structure, air suction pumps (12) are installed below the left side and the right side of the explosion-proof frame (6), air supply assemblies (13) are connected between the air suction pumps (12) and the ventilation frame (9), each air supply assembly (13) comprises a first air supply pipe (1301), a first control valve (1302), an air exhaust pipe (1303), a second air supply pipe (1304) and a second control valve (1305), the middle portion of the upper portion of the first air supply pipe (1301) is provided with a first control valve (1303), the middle portion of the second air supply pipe (1304) is communicated with the middle portion of the second air supply pipe (1304), and the upper side of the exhaust pipe (1303) is of an M-shaped structure, the first air supply pipe (1301) and the second air supply pipe (1304) are communicated with each other, the second air supply pipe (1304) and the air supply chamber (1006) are communicated with each other, and a control screen (17) is rotatably installed on one side of the outer portion of the outer frame body (1) through a hinge.

2. The power distribution switch testing device for the electromechanical assembly according to claim 1, wherein the ventilation assembly (10) further comprises a filtering cotton layer (1002), a bamboo charcoal filtering layer (1003), an activated carbon filtering layer (1004) and a water purification tank (1005), the filtering cotton layer (1002), the bamboo charcoal filtering layer (1003) and the activated carbon filtering layer (1004) are sequentially arranged inside the filtering chamber (1001) from top to bottom, and the water purification tank (1005) is arranged below the inside of the filtering chamber (1001).

3. The power distribution switch testing device for the electromechanical assembly according to claim 1, wherein a transmission belt (14) is arranged inside the placing plate (4), a waste hopper (15) is fixed on the rear outer side of the placing plate (4), and a cleaning assembly (16) is arranged on the rear upper side of the placing plate (4).

4. The power distribution switch testing device for the electromechanical assembly according to claim 3, wherein the cleaning assembly (16) comprises a telescopic rod (1601), a micro motor (1602), a rotating rod (1603), a baffle plate (1604) and a cleaning brush (1605), the telescopic rod (1601) is fixedly connected with the side of the setting plate (4), the micro motor (1602) is installed on one side above the telescopic rod (1601), the rotating rod (1603) is arranged on one side of the micro motor (1602), and the baffle plate (1604) and the cleaning brush (1605) are respectively fixed on the upper side and the lower side of the outside of the rotating rod (1603).

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