An electrical engineering power distribution switch

Abstract

The invention discloses an electrical engineering distribution switch, which belongs to the technical field of distribution switches. In order to solve the problem that the flap on the existing distribution switch box body needs workers to hold it by hand after it is opened, which affects the workers' operation of the distribution switch; and the existing distribution switch has an overload protector inside which is fixedly installed on the inner wall of the distribution box, and the overload protector is troublesome to disassemble and assemble; the present invention arranges a worm at the end of a movable shaft at one end of the protective flap, and uses a control rod member penetrating the outer wall of the mounting seat to engage the worm to press and rotate it to control the protective flap to flip open. After the control rod member is pressed and released, the self-locking worm is immediately reset to fix the protective flap, and a positioning hole is provided on the mounting plate on the inner wall of the distribution box body to plug in the overload protection switch, and a mounting hole is correspondingly provided on the top of the mounting plate to install an auxiliary positioning member to lock the overload protection switch, so as to achieve its installation and fixation; the present invention avoids the problem of no support after the protective flap is opened, and is convenient and practical.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution switches, and in particular to a power distribution switch for electrical engineering. Background Art

[0002] Some switching power supplies use thyristors, while others use switch tubes. The performance of these two components is similar. They are both turned on and off by adding pulse signals to the base and control electrode (thyristor). When the positive half cycle of the pulse signal arrives, the voltage on the control electrode increases, and the switch tube or thyristor is turned on. The 300v voltage output after 220v rectification and filtering is turned on, and is transmitted to the secondary through the switching transformer. The voltage is then increased or decreased through the transformation ratio to supply the work of each circuit. When the negative half cycle of the oscillation pulse arrives, the base voltage of the power adjustment tube or the control electrode voltage of the thyristor is lower than the original set voltage, the power adjustment tube is cut off, the 300v power supply is turned off, and there is no voltage on the secondary of the switching transformer. At this time, the working voltage required by each circuit is maintained by the discharge of the filter capacitor after rectification of the secondary. When the positive half cycle signal of the next pulse cycle arrives, the previous process is repeated. This switching transformer is called a high-frequency transformer because its working frequency is higher than the low frequency of 50hz.

[0003] The distribution switch is a control node of the electrical engineering line, which is used to control the on and off of the transmission line. The existing distribution switch box port is generally provided with an end cover that can be flipped up and down to facilitate workers to operate and repair the switch line. However, after the flap on the existing distribution switch box is opened, the worker needs to hold it by hand to prevent the flap from falling and affecting the line of sight or falling and hurting the arm. Holding the flap by hand affects the worker's operation of the distribution switch; moreover, the overload protector inside the existing distribution switch is fixedly installed on the inner wall of the distribution box, and it is troublesome to remove the damaged overload protector when repairing the circuit.

[0004] Therefore, we introduce an electrical engineering power distribution switch. Summary of the invention

[0005] The object of the present invention is to provide an electrical engineering distribution switch, aiming to solve the problem in the above-mentioned background technology that after the flap on the existing distribution switch box is opened, the worker needs to hold the flap by hand to prevent it from falling and affecting the line of sight or falling and hurting the arm, and the hand-holding flap affects the worker's operation of the distribution switch; and the existing distribution switch has an internal overload protector that is fixedly installed on the inner wall of the distribution box, which makes it troublesome to operate when repairing the circuit and removing the damaged overload protector.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrical engineering power distribution switch, comprising a power distribution box body and a raised frame fixedly connected to the outer wall of the port of the power distribution box body, a protective flap is movably provided between the inner walls of the port near the top of the raised frame through a movable shaft, the protective flap is movably engaged between the inner walls of the raised frame, a mounting seat is fixedly connected to the outer wall of the raised frame at one end of the protective flap at a position corresponding to the movable shaft, the end of the movable shaft extends through and into the inner cavity of the mounting seat, a worm is fixedly connected to the end of the movable shaft in the mounting seat, a control rod is movably connected to the bottom of the worm, a positioning cylinder is fixedly connected to the outer wall of the mounting seat corresponding to the port of the raised frame, and one end of the control rod extends to the outside of the mounting seat through the positioning cylinder;

[0007] The control rod member includes an adjusting knob movably sleeved inside the positioning cylinder and a control rod fixedly connected to the end of the adjusting knob, the control rod extends to the inside of the mounting seat through the positioning cylinder, a worm gear is fixedly sleeved on the outer wall of the control rod in the mounting seat, the worm gear is arranged corresponding to the worm, and a connecting rod is movably sleeved on the end of the control rod adjacent to the worm gear, a locking piece is fixedly connected to the top of the connecting rod near one end of the control rod, the end of the connecting rod extends to the inside of the mounting cylinder, the end of the mounting cylinder is fixedly connected to the inner wall of the mounting seat, the end of the connecting rod in the mounting cylinder is fixedly connected to an elastic component, the elastic component is fixedly connected to the inner wall of the mounting cylinder, when the elastic component maintains a normal relaxed state, the worm gear and the worm are staggered, and at this time, the locking piece is engaged with the outer wall of the worm.

[0008] Furthermore, the locking piece includes a fixing rod fixedly connected to the top of the connecting rod end and a U-shaped clamp fixedly connected to the top of the fixing rod, the U-shaped clamp port is arranged corresponding to the worm, and the top end of the U-shaped clamp is fixedly connected with an arc-shaped guide plate, the U-shaped clamp is evenly fixedly connected with anti-skid thorns at the middle part of the inner wall corresponding to the worm, and wedge-shaped plug plates are fixedly connected to the inner wall of the U-shaped clamp at the upper and lower ends of the anti-skid thorns, respectively, and the wedge-shaped plug plates are respectively arranged close to the upper and lower bottom plates of the U-shaped clamp.

[0009] Furthermore, a mounting plate is fixedly connected to the inner wall of the corresponding port of the distribution box body, and positioning holes are evenly spaced on the outer wall of the mounting plate. The positioning rods on the outer wall of the back plate of the overload protection switch are inserted into the positioning holes. The overload protection switch is fitted on the outer wall of the mounting plate through the positioning rods. Mounting holes are respectively opened at the corresponding positioning holes on the top of the mounting plate, and auxiliary positioning pieces are movably arranged in the mounting holes, which lock the positioning rods.

[0010] Furthermore, a main distribution switch is fixedly connected to the inner wall of the distribution box body at the upper end of the mounting plate, an indicator light is fixedly connected to the inner wall of the distribution box body adjacent to the main distribution switch, the indicator light is connected in series with the main distribution switch, and a fire extinguishing air bag is arranged on the inner wall of the distribution box body on one side of the indicator light, a protective partition is fixedly installed between the inner walls of the distribution box body outside the main distribution switch, a first set of holes and a second set of holes are respectively opened on the protective partition corresponding to the main distribution switch and the overload protection switch, the first set of holes and the second set of holes are respectively clamped on the outer walls of the main distribution switch and the overload protection switch, and a marking plate is evenly spaced and fixedly connected to the protective partition at the lower end of the second set of holes, and the marking plate is arranged one-to-one in correspondence with the overload protection switch.

[0011] Furthermore, the auxiliary positioning member includes a fixed plate fixedly connected to the inner wall of the mounting hole and a first gear and a second gear movably arranged on the outer wall of the fixed plate, the first gear and the second gear are meshed with each other, and a positioning link is obliquely fixedly connected to the outer wall at the bottom of the first gear and the second gear, and a driving arm is movably connected to the end of the positioning link, and a clamping portion is fixedly connected to the end of the driving arm, and an arc groove is provided on the side walls opposite to the clamping portion, and an auxiliary connecting rod is movably connected to the outer wall at the connection between the driving arm and the clamping portion, and the end of the auxiliary connecting rod is movably connected to the outer wall of the fixed plate, and a toggle gear is movably arranged on the outer wall of the fixed plate adjacent to the top of the second gear, and the toggle gear is meshed with the second gear, and its top extends to the outside of the mounting hole port.

[0012] Furthermore, an installation groove is opened on the side wall of the arc-shaped groove, and the upper and lower ends of the inner wall of the port corresponding to the installation groove are fixedly connected with installation sleeves, and a moving rod is movably sleeved between the inner walls at the end of the installation sleeve, and the end of the moving rod extends into the arc-shaped groove, and the two ends of the T-shaped piston rod are movably engaged in the opening between the side walls of the installation sleeve, and the two ends of the T-shaped piston rod are respectively fixedly connected to the moving rod, and the cross bar of the T-shaped piston rod is movably sleeved in the inner cavity of the piston cylinder, and the end of the piston cylinder is fixedly connected with an adsorption cylinder, and a flexible patch is fixedly connected to the outer wall of the port of the adsorption cylinder.

[0013] Furthermore, a cavity is provided between the inner walls of the ends at both ends of the distribution box body, a connecting port is opened on the inner wall of the cavity close to the electrical component mounting slot, sealing flaps are movably provided at even intervals between the inner walls of the connecting port, upper and lower adjacent sealing flaps are connected in sequence by a movable connecting rod, and a heat conducting tube is fixedly connected to the inner wall of the distribution box body at the top of the connecting port, a piston push rod is movably sleeved in the port of the heat conducting tube close to one end of the sealing flap, the end of the piston push rod is movably connected to the outer wall of the connecting strip on the outer wall of the uppermost sealing flap, and a magnetic suction block is fixedly connected to the outer wall at the connecting end of the lowermost sealing flap.

[0014] Furthermore, when the gas sealed between the heat-conducting cylinder and the piston push rod maintains its initial state, the sealing flap is vertically and parallelly arranged to seal the connecting port, and an air inlet is opened on the side wall of the distribution box body corresponding to the connecting port, and a dustproof net is arranged between the inner walls of the upper and lower ends of the cavity adjacent to the air inlet, a dust cleaning part is fixedly connected to the lower end of the cavity top plate on the side of the dustproof net away from the connecting port, an inclined protrusion is fixedly connected to the cavity bottom plate, the bottom plate of the dustproof net is fixedly connected to the inclined top of the inclined protrusion, and the inclined lower end of the inclined protrusion extends to the dust outlet on the side wall of the distribution box body.

[0015] Furthermore, the cleaning component includes a vibration spring fixedly connected to the lower end of the top plate and a cleaning scraper fixedly connected to the bottom of the vibration spring. The vibration spring and the cleaning scraper are alternately arranged in sequence from top to bottom, and the bottom of the lowest cleaning scraper is fixedly connected to a fixed hanging rope, and the lower end of the fixed hanging rope is fixedly connected to a metal ball, and the metal ball is arranged corresponding to the magnetic suction block.

[0016] Furthermore, an installation cavity is opened inside the metal ball, and a T-shaped touch rod is movably engaged in the installation cavity. The end of the T-shaped touch rod extends to the outside of the metal ball through a guide channel. The guide channel is vertically fixed with a suspension rope. The end of the T-shaped touch rod is set close to the dustproof net, and an elastic ball is movably engaged in the installation cavity, and the elastic ball is engaged between the T-shaped touch rod and the inner wall of the installation cavity.

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

[0018] The locking piece is clamped on the worm so that the protective flap is always suspended horizontally, and the adjusting knob can be reset by pressing the adjusting knob again for reverse operation, thereby avoiding the trouble of workers having to hold hands when operating the switch, and the convenience is obtained.

[0019] 2. An electrical engineering distribution switch proposed by the present invention, the rotating toggle gear is toggled clockwise, the toggle gear drives the second gear to rotate counterclockwise, and the second gear drives the first gear to rotate clockwise at the same time, the first gear and the second gear drive the bottom positioning connecting rod to separate backwards, the positioning connecting rod drives the clamping part at the end to separate and open, the positioning rod on the outer wall of the back plate of the overload protection switch is inserted into the positioning hole on the outer wall of the mounting plate, so that the overload protection switch fits the outer wall of the mounting plate, and then the toggle gear is rotated in the opposite direction, and the clamping parts are driven again to fit each other closely, and the arc groove on the side wall of the clamping part is used to clamp and fix the positioning rod on the overload protection switch, so as to ensure the stable installation of the overload protection switch on the outer wall of the mounting plate and prevent the overload protection switch from falling out of the positioning hole. When the above-mentioned operation of rotating the toggle gear clockwise is repeated, the locking of the positioning rod by the clamping part in the mounting hole can also be released, and the overload protection switch can be removed from the mounting plate for replacement and maintenance, which is convenient to operate.

[0020] 3. The present invention proposes an electrical engineering distribution switch. When the electrical components inside the distribution box body are working, they emit heat. The heat-conducting tube absorbs the heat so that the gas inside it absorbs heat and expands in volume, pushing the piston push rod out of the heat-conducting tube. The piston push rod pushes the sealing flap at the top of the connecting port to deflect. Then the sealing flap uses a movable connecting rod to push the sealing flaps of the lower layer to deflect in turn. The connecting port is exposed to connect the electrical component installation slot and the cavity. The external cold air flows into the cavity through the air inlet on the side wall of the distribution box body, and enters the electrical component installation slot through the connecting port after being filtered by the dustproof net in the cavity. The heated electrical components are cooled, and the heat is discharged with the circulating airflow. After the temperature of the electrical components returns to normal, the volume of the gas in the heat transfer tube slowly recovers, and the piston push rod resets to drive the sealing flap to seal the connecting port again, thereby forming a seal for the electrical component installation slot to effectively prevent the infiltration of dust. When the sealing flap is deflected, the end scrapes the dustproof net, and the bottom sealing flap uses the magnetic block on the outer wall to absorb the cleaning part for stretching. After the sealing flap is reset, the cleaning part is released to vibrate up and down to clean the dust-facing surface of the dustproof net, and the dust is discharged along the inclined protrusion and the ash outlet at the bottom of the cavity, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the power distribution box body of the present invention;

[0023] Figure 3 It is a schematic diagram of the installation structure of the protective flip cover and the control rod of the present invention;

[0024] Figure 4 It is a schematic diagram of the control rod structure of the present invention;

[0025] Figure 5It is a schematic diagram of the locking member structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the installation structure of the power distribution box body and the protective partition of the present invention;

[0027] Figure 7 It is a schematic diagram of the auxiliary positioning member structure of the present invention;

[0028] Figure 8 is a cross-sectional view of the clamping portion of the present invention;

[0029] Fig. 9 It is a cross-sectional view of the power distribution box body of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the dust cleaning component of the present invention;

[0031] Fig.11 It is a cross-sectional view of the metal ball of the present invention.

[0032] In the figure: 1. distribution box body; 101. cavity; 102. connecting port; 103. sealing flap; 104. movable connecting rod; 105. heat conducting tube; 106. piston push rod; 107. connecting strip; 108. magnetic block; 109. air inlet; 1010. dust screen; 1011. dust cleaning part; 10111. vibration spring; 10112. cleaning scraper; 10113. fixed lifting rope; 10114. metal ball; 1 01141, installation cavity; 101142, T-type contact rod; 101143, guide channel; 101144, elastic ball; 1012, inclined surface protrusion; 2, protruding frame; 3, movable shaft; 4, protective flap; 5, mounting seat; 6, worm; 7, control rod; 71, adjustment knob; 72, control rod; 73, worm wheel; 74, connecting rod; 75, locking piece; 751, fixing rod; 752, U-shaped clamp; 75 3. arc guide plate; 754. anti-slip thorns; 755. wedge-shaped plug plate; 76. mounting tube; 77. elastic component; 8. positioning tube; 9. mounting plate; 10. positioning hole; 11. overload protection switch; 12. positioning rod; 13. mounting hole; 14. auxiliary positioning member; 141. fixing plate; 142. first gear; 143. second gear; 144. positioning connecting rod; 145. driving arm rod; 146. clamping part; 1 47. Arc groove; 1471. Installation groove; 1472. Installation sleeve; 1473. Moving rod; 1474. T-type piston rod; 1475. Piston cylinder; 1476. Adsorption cylinder; 1477. Flexible patch; 148. Auxiliary connecting rod; 149. Toggle gear; 15. Main power distribution switch; 16. Indicator light; 17. Fire extinguishing air bag; 18. Protective partition; 19. First set of holes; 20. Second set of holes; 21. Marking plate. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1 and Figure 3 A power distribution switch for electrical engineering includes a power distribution box body 1 and a raised frame 2 fixedly connected to the outer wall of the port of the power distribution box body 1, a protective flap 4 is movably arranged between the inner walls of the port near the top of the raised frame 2 through a movable shaft 3, and the protective flap 4 is movably engaged between the inner walls of the raised frame 2.

[0035] In order to solve the problem that workers need to hold the flap on the existing power distribution switch box after opening it, so as to prevent the flap from falling and affecting the sight or hurting the arm, and the flap affects the workers' operation of the power distribution switch, please refer to Figure 1-Figure 5 , provide the following preferred technical solutions:

[0036] A mounting seat 5 is fixedly connected to the outer wall of the raised frame 2 at one end of the protective flip cover 4 at a position corresponding to the movable shaft 3, and the end of the movable shaft 3 extends through the inner cavity of the mounting seat 5. A worm 6 is fixedly connected to the end of the movable shaft 3 in the mounting seat 5, and a control rod 7 is movably connected to the bottom of the worm 6. A positioning cylinder 8 is fixedly connected to the outer wall of the mounting seat 5 on one side of the port of the raised frame 2, and one end of the control rod 7 extends to the outside of the mounting seat 5 through the positioning cylinder 8.

[0037] The control rod 7 includes an adjusting knob 71 movably sleeved inside the positioning cylinder 8 and a control rod 72 fixedly connected to the end of the adjusting knob 71. The control rod 72 extends into the interior of the mounting seat 5 through the positioning cylinder 8. A worm gear 73 is fixedly sleeved on the outer wall of the control rod 72 in the mounting seat 5. The worm gear 73 is arranged corresponding to the worm 6, and a connecting rod 74 is movably sleeved on the end of the control rod 72 adjacent to the worm gear 73. A locking piece 75 is fixedly connected to the top of the connecting rod 74 near one end of the control rod 72. The end of the connecting rod 74 extends into the interior of the mounting cylinder 76. The end of the mounting cylinder 76 is fixedly connected to the inner wall of the mounting seat 5. The end of the connecting rod 74 in the mounting cylinder 76 is fixedly connected to an elastic component 77. The elastic component 77 is fixedly connected to the inner wall of the mounting cylinder 76. When the elastic component 77 maintains a normal relaxed state, the worm gear 73 and the worm 6 are misaligned. At this time, the locking piece 75 is engaged with the outer wall of the worm 6.

[0038] The locking member 75 includes a fixing rod 751 fixedly connected to the top of the end of the connecting rod 74 and a U-shaped clamp 752 fixedly connected to the top of the fixing rod 751. The port of the U-shaped clamp 752 is arranged corresponding to the worm 6, and the top end of the U-shaped clamp 752 is fixedly connected with an arc-shaped guide plate 753. The U-shaped clamp 752 is evenly fixedly connected with anti-skid thorns 754 at the middle part of the inner wall of the worm 6. Wedge-shaped plug plates 755 are fixedly connected on the inner wall of the U-shaped clamp 752 at the upper and lower ends of the anti-skid thorns 754, respectively. The wedge-shaped plug plates 755 are respectively arranged close to the upper and lower bottom plates of the U-shaped clamp 752. The upper and lower bottom plates of the U-shaped clamp 752 are opened and squeezed to be clamped on the outer wall of the worm 6. The wedge-shaped plug plates 755 are respectively inserted into the oblique mouths of the upper and lower ends of the worm 6. The anti-skid thorns 754 engage with the tooth grooves at the side ends of the worm 6 to prevent the worm 6 from rotating.

[0039] Specifically, pressing the adjusting knob 71 makes it move toward the inside of the positioning cylinder 8, and the adjusting knob 71 pushes the control rod 72 and the connecting rod 74 to move and compress the elastic component 77 inside the mounting cylinder 76. When the connecting rod 74 moves, it drives the locking piece 75 at the top thereof to disengage from the worm 6 to release the buckling restriction, so that the worm wheel 73 on the outer wall of the control rod 72 moves to the bottom of the worm 6 and meshes with it. Then, the adjusting knob 71 is rotated to drive the control rod 72 to rotate, and the control rod 72 drives the worm wheel 73 to drive the worm 6 to rotate clockwise. The worm 6 uses the movable shaft 3 to rotate clockwise. The rotation of the needle drives the protective flap 4 to deflect and disengage from the port of the raised frame 2. The protective flap 4 deflects to a horizontal state and stops rotating the adjusting knob 71. After the adjusting knob 71 is released, the elastic component 77 pushes the control rod 72 and the connecting rod 74 to reset. The worm gear 73 is separated from the worm 6 again, and the locking piece 75 is again clamped on the outer wall of the worm 6 to keep it stationary. The locking piece 75 clamps on the worm 6 so that the protective flap 4 is always suspended horizontally. Pressing the adjusting knob 71 again and operating in the reverse direction can reset it, avoiding the trouble of workers having to hold the switch with their hands. It is convenient and quick.

[0040] The overload protector inside the existing power distribution switch is fixedly installed on the inner wall of the distribution box. It is troublesome to remove the damaged overload protector when repairing the circuit. Please refer to Figure 2 and Figure 6-Figure 8 As shown, the following preferred technical solutions are provided:

[0041] A mounting plate 9 is fixedly connected to the inner wall of the corresponding port of the distribution box body 1, and positioning holes 10 are evenly spaced on the outer wall of the mounting plate 9. The positioning holes 10 are inserted into the positioning rods 12 on the outer wall of the back plate of the overload protection switch 11. The overload protection switch 11 is fitted on the outer wall of the mounting plate 9 through the positioning rods 12. Mounting holes 13 are respectively opened at the top of the mounting plate 9 corresponding to the positioning holes 10, and auxiliary positioning parts 14 are movably arranged in the mounting holes 13, and the auxiliary positioning parts 14 lock the positioning rods 12.

[0042] A main distribution switch 15 is fixedly connected to the inner wall of the distribution box body 1 at the upper end of the mounting plate 9, an indicator light 16 is fixedly connected to the inner wall of the distribution box body 1 adjacent to the main distribution switch 15, the indicator light 16 is connected in series with the main distribution switch 15, and a fire extinguishing air bag 17 is arranged on the inner wall of the distribution box body 1 on one side of the indicator light 16, a protective partition 18 is fixedly installed between the inner walls of the distribution box body 1 outside the main distribution switch 15, a first set of holes 19 and a second set of holes 20 are respectively opened on the protective partition 18 corresponding to the main distribution switch 15 and the overload protection switch 11, the first set of holes 19 and the second set of holes 20 are respectively clamped on the outer walls of the main distribution switch 15 and the overload protection switch 11, and the protective partition 18 at the lower end of the second set of holes 20 is evenly fixedly connected with marking plates 21, and the marking plates 21 are arranged one-to-one with the overload protection switches 11.

[0043] The auxiliary positioning member 14 includes a fixing plate 141 fixedly connected to the inner wall of the mounting hole 13 and a first gear 142 and a second gear 143 movably arranged on the outer wall of the fixing plate 141. The first gear 142 and the second gear 143 are meshed with each other, and a positioning link 144 is obliquely fixedly connected to the outer wall at the bottom of the first gear 142 and the second gear 143, and a driving arm 145 is movably connected to the end of the positioning link 144. A clamping portion 146 is fixedly connected to the end of the driving arm 145. An arc groove 147 is provided on the side wall opposite to the clamping portion 146, and an auxiliary link 148 is movably connected to the outer wall at the connection between the driving arm 145 and the clamping portion 146. The end of the auxiliary link 148 is movably connected to the outer wall of the fixing plate 141, and a toggle gear 149 is movably arranged on the outer wall of the fixing plate 141 adjacent to the top of the second gear 143. The toggle gear 149 is meshed with the second gear 143, and its top extends to the outside of the port of the mounting hole 13.

[0044] The side wall of the arc groove 147 is provided with a mounting groove 1471, and the upper and lower ends of the inner wall of the corresponding port of the mounting groove 1471 are fixedly connected with a mounting sleeve 1472, and the inner wall at the end of the mounting sleeve 1472 is movably sleeved with a moving rod 1473, and the end of the moving rod 1473 extends into the arc groove 147, and the opening between the side walls of the mounting sleeve 1472 movably engages with the two ends of the T-shaped piston rod 1474, and the two ends of the T-shaped piston rod 1474 are respectively fixedly connected to the moving rod 1473, and the cross bar of the T-shaped piston rod 1474 is movably sleeved in the inner cavity of the piston cylinder 1475, and the end of the piston cylinder 1475 is fixedly connected with Adsorption cylinder 1476, a flexible patch 1477 is fixedly connected to the outer wall of the port of the adsorption cylinder 1476, when the arc groove 147 clamps the positioning rod 12, the end of the moving rod 1473 fits the outer wall of the positioning rod 12, the moving rod 1473 pushes the T-shaped piston rod 1474 to pull out the piston cylinder 1475, and at the same time, the outer wall of the flexible patch 1477 fits the positioning rod 12 to be compressed and deformed, the T-shaped piston rod 1474 is pulled out of the piston cylinder 1475 to form a negative pressure on the adsorption cylinder 1476, the adsorption cylinder 1476 adsorbs the positioning rod 12 through the flexible patch 1477, and enhances the fixing stability of the clamping part 146 to the positioning rod 12.

[0045] Specifically, the rotating gear 149 is toggled clockwise, and the toggle gear 149 drives the second gear 143 to rotate counterclockwise. At the same time, the second gear 143 drives the first gear 142 to rotate clockwise. The first gear 142 and the second gear 143 drive the bottom positioning link 144 to separate in reverse, and the positioning link 144 drives the clamping part 146 at the end to separate and open, and the positioning rod 12 on the outer wall of the back plate of the overload protection switch 11 is inserted into the positioning hole 10 on the outer wall of the mounting plate 9, so that the overload protection switch 11 is attached to the outer wall of the mounting plate 9, and then the toggle gear 149 is rotated in the reverse direction. The gear 149 drives the clamping part 146 to fit together again, and uses the arc groove 147 on the side wall of the clamping part 146 to clamp and fix the positioning rod 12 on the overload protection switch 11, so as to ensure the stable installation of the overload protection switch 11 on the outer wall of the mounting plate 9 and prevent the overload protection switch 11 from falling out of the positioning hole 10. When repeating the above-mentioned operation of rotating the gear 149 clockwise, the locking of the positioning rod 12 by the clamping part 146 in the mounting hole 13 can also be released, so that the overload protection switch 11 can be removed from the mounting plate 9 for replacement and maintenance, which is convenient to operate.

[0046] In order to enhance the sealing performance of the distribution box body 1 and prevent dust from penetrating and depositing on the electrical components and damaging the circuit, Figure 9-11 As shown, the following preferred technical solutions are provided:

[0047] A cavity 101 is provided between the inner walls of the ends at both ends of the distribution box body 1, and a connecting port 102 is opened on the inner wall of the cavity 101 close to the electrical component installation slot. Sealing flaps 103 are movably provided at even intervals between the inner walls of the connecting port 102. The upper and lower adjacent sealing flaps 103 are connected in sequence through a movable connecting rod 104, and a heat-conducting tube 105 is fixedly connected to the inner wall of the distribution box body 1 at the top of the connecting port 102. A piston push rod 106 is movably sleeved in the port of the heat-conducting tube 105 close to one end of the sealing flap 103, and the end of the piston push rod 106 is movably connected to the outer wall of the connecting strip 107 on the outer wall of the uppermost sealing flap 103, and a magnetic suction block 108 is fixedly connected to the outer wall at the connection end of the lowermost sealing flap 103.

[0048] When the gas sealed between the heat-conducting tube 105 and the piston push rod 106 maintains its initial state, the sealing flap 103 is vertically and parallelly arranged to block the connecting port 102, and an air inlet 109 is opened on the side wall of the distribution box body 1 corresponding to the connecting port 102, and a dustproof net 1010 is arranged between the inner walls of the upper and lower ends of the cavity 101 adjacent to the air inlet 109, and a dust cleaning part 1011 is fixedly connected to the lower end of the top plate of the cavity 101 away from the connecting port 102, and an inclined protrusion 1012 is fixedly connected to the bottom plate of the cavity 101, and the bottom plate of the dustproof net 1010 is fixedly connected to the inclined top of the inclined protrusion 1012, and the inclined lower end of the inclined protrusion 1012 extends to the dust outlet on the side wall of the distribution box body 1.

[0049] The cleaning component 1011 includes a vibration spring 10111 fixedly connected to the lower end of the top plate and a cleaning scraper 10112 fixedly connected to the bottom of the vibration spring 10111. The vibration spring 10111 and the cleaning scraper 10112 are alternately arranged in sequence up and down, and the bottom of the lowest cleaning scraper 10112 is fixedly connected to a fixed hanging rope 10113, and the lower end of the fixed hanging rope 10113 is fixedly connected to a metal ball 10114, and the metal ball 10114 is arranged corresponding to the magnetic suction block 108.

[0050] An installation cavity 101141 is opened inside the metal ball 10114, and a T-shaped touch rod 101142 is movably engaged with the installation cavity 101141. The end of the T-shaped touch rod 101142 extends to the outside of the metal ball 10114 through a guide channel 101143. The guide channel 101143 is vertically fixed to the suspension rope 10113. The end of the T-shaped touch rod 101142 is set close to the dustproof net 1010, and an elastic ball 101144 is movably engaged with the installation cavity 101141. The elastic ball 101144 is engaged between the T-shaped touch rod 101142 and the inner wall of the installation cavity 101141.

[0051] Specifically, when the electrical components inside the distribution box body 1 are working, they emit heat, and the heat-conducting tube 105 absorbs heat so that the gas inside it absorbs heat and expands in volume, pushing the piston push rod 106 to move out of the heat-conducting tube 105. The piston push rod 106 pushes the sealing flap 103 at the top of the connecting port 102 to deflect, and then the sealing flap 103 uses the movable connecting rod 104 to push the sealing flap 103 of the lower layer to deflect in sequence, and the connecting port 102 is exposed to connect the electrical component installation slot and the cavity 101. The external cold airflow enters the cavity 101 through the air inlet 109 on the side wall of the distribution box body 1, and enters the electrical component installation slot through the connecting port 102 after being filtered by the dustproof net 1010 in the cavity 101, so as to cool the heating electrical components. The components are cooled down, and the heat is discharged with the circulating airflow. After the temperature of the electrical components returns to normal, the volume of the gas in the heat-conducting tube 105 slowly recovers, and the piston push rod 106 resets to drive the sealing flap 103 to seal the connecting port 102 again, thereby forming a seal for the electrical component installation slot and effectively preventing the infiltration of dust. When the sealing flap 103 is deflected, the end scrapes the dustproof net 1010, and the bottom sealing flap 103 uses the magnetic block 108 on the outer wall to absorb the cleaning part 1011 for stretching. After the sealing flap 103 is reset, the cleaning part 1011 is released to vibrate up and down to clean the dust-facing surface of the dustproof net 1010, and the dust is discharged along the inclined protrusion 1012 and the ash outlet at the bottom of the cavity 101, which is convenient and practical.

[0052] 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.

[0053] 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. An electrical engineering power distribution switch, comprising a power distribution box body (1) and a raised frame (2) fixedly connected to the outer wall of a port of the power distribution box body (1), a protective flap (4) movably arranged between the inner walls of the port near the top of the raised frame (2) via a movable shaft (3), the protective flap (4) movably engaging between the inner walls of the raised frame (2), characterized in that: A mounting seat (5) is fixedly connected to the outer wall of the raised frame (2) at one end of the protective flip cover (4) at a position corresponding to the movable shaft (3); the end of the movable shaft (3) extends through the inner cavity of the mounting seat (5); a worm (6) is fixedly connected to the end of the movable shaft (3) in the mounting seat (5); a control rod (7) is movably connected to the bottom of the worm (6); a positioning cylinder (8) is fixedly connected to the outer wall of the mounting seat (5) at a side corresponding to the end of the raised frame (2); and one end of the control rod (7) extends to the outside of the mounting seat (5) through the positioning cylinder (8); The control rod (7) comprises an adjusting knob (71) movably sleeved inside the positioning tube (8) and a control rod (72) fixedly connected to the end of the adjusting knob (71); the control rod (72) extends through the positioning tube (8) to the inside of the mounting seat (5); a worm gear (73) is fixedly sleeved on the outer wall of the control rod (72) in the mounting seat (5); the worm gear (73) is arranged corresponding to the worm (6); and a connecting rod (74) is movably sleeved on the end of the control rod (72) adjacent to the worm gear (73); the connecting rod (74) is close to the control rod (72). A locking piece (75) is fixedly connected to the top of one end, the end of the connecting rod (74) extends into the interior of the mounting tube (76), the end of the mounting tube (76) is fixedly connected to the inner wall of the mounting seat (5), the end of the connecting rod (74) in the mounting tube (76) is fixedly connected to an elastic component (77), the elastic component (77) is fixedly connected to the inner wall of the mounting tube (76), when the elastic component (77) maintains a normal relaxation state, the worm wheel (73) and the worm (6) are offset, at which time the locking piece (75) is engaged with the outer wall of the worm (6).

2. An electrical engineering power distribution switch according to claim 1, characterized in that: The locking member (75) comprises a fixing rod (751) fixedly connected to the top of the end of the connecting rod (74) and a U-shaped clamp (752) fixedly connected to the top of the fixing rod (751); a port of the U-shaped clamp (752) is arranged corresponding to the worm (6); an arc-shaped guide plate (753) is fixedly connected to the top end of the U-shaped clamp (752); anti-skid thorns (754) are evenly fixedly connected to the middle of the inner wall of the U-shaped clamp (752) corresponding to the worm (6); wedge-shaped plug plates (755) are fixedly connected to the inner wall of the U-shaped clamp (752) at the upper and lower ends of the anti-skid thorns (754); and the wedge-shaped plug plates (755) are respectively arranged close to the upper and lower bottom plates of the U-shaped clamp (752).

3. An electrical engineering power distribution switch according to claim 1, characterized in that: A mounting plate (9) is fixedly connected to the inner wall of the distribution box body (1) corresponding to the port, and positioning holes (10) are evenly spaced on the outer wall of the mounting plate (9). Positioning rods (12) on the outer wall of the back plate of the overload protection switch (11) are inserted into the positioning holes (10). The overload protection switch (11) is fitted on the outer wall of the mounting plate (9) through the positioning rods (12). Mounting holes (13) are respectively opened at the top of the mounting plate (9) corresponding to the positioning holes (10), and auxiliary positioning pieces (14) are movably arranged in the mounting holes (13). The auxiliary positioning pieces (14) lock the positioning rods (12).

4. An electrical engineering power distribution switch as claimed in claim 3, characterized in that: A main distribution switch (15) is fixedly connected to the inner wall of the distribution box body (1) at the upper end of the mounting plate (9), an indicator light (16) is fixedly connected to the inner wall of the distribution box body (1) adjacent to the main distribution switch (15), the indicator light (16) is connected in series with the main distribution switch (15), and a fire extinguishing air bag (17) is arranged on the inner wall of the distribution box body (1) on one side of the indicator light (16), and a protective partition (18) is fixedly installed between the inner walls of the distribution box body (1) outside the main distribution switch (15), and the ... A first set of holes (19) and a second set of holes (20) are respectively formed on the partition plate (18) corresponding to the main power distribution switch (15) and the overload protection switch (11). The first set of holes (19) and the second set of holes (20) are respectively clamped on the outer walls of the main power distribution switch (15) and the overload protection switch (11). The protective partition plate (18) at the lower end of the second set of holes (20) is evenly spaced and fixedly connected with marking plates (21). The marking plates (21) are arranged one-to-one corresponding to the overload protection switches (11).

5. An electrical engineering power distribution switch as claimed in claim 4, characterized in that: The auxiliary positioning member (14) comprises a fixing plate (141) fixedly connected to the inner wall of the mounting hole (13) and a first gear (142) and a second gear (143) movably arranged on the outer wall of the fixing plate (141), the first gear (142) and the second gear (143) being meshed with each other, and a positioning link (144) is obliquely fixedly connected to the outer wall at the bottom of the first gear (142) and the second gear (143), the end of the positioning link (144) is movably connected to a driving arm (145), and the end of the driving arm (145) is fixedly connected to a clamp The holding portion (146) is provided with an arc groove (147) on the side wall opposite to the clamping portion (146), and an auxiliary connecting rod (148) is movably connected to the outer wall of the connection between the driving arm (145) and the clamping portion (146), and the end of the auxiliary connecting rod (148) is movably connected to the outer wall of the fixing plate (141), and a shifting gear (149) is movably provided on the outer wall of the fixing plate (141) adjacent to the top of the second gear (143), and the shifting gear (149) is meshed with the second gear (143), and the top of the shifting gear (149) extends to the outside of the port of the mounting hole (13).

6. An electrical engineering power distribution switch as claimed in claim 5, characterized in that: A mounting groove (1471) is provided on the side wall of the arc-shaped groove (147), and mounting sleeves (1472) are fixedly connected to the upper and lower ends of the inner wall of the corresponding port of the mounting groove (1471), and a moving rod (1473) is movably sleeved between the inner walls at the end of the mounting sleeve (1472), and the end of the moving rod (1473) extends into the arc-shaped groove (147), and the two ends of the T-shaped piston rod (1474) are movably engaged in the opening between the side walls of the mounting sleeve (1472), and the two ends of the T-shaped piston rod (1474) are respectively fixedly connected to the moving rod (1473), and the cross bar of the T-shaped piston rod (1474) is movably sleeved in the inner cavity of the piston cylinder (1475), and the end of the piston cylinder (1475) is fixedly connected to the adsorption cylinder (1476), and the outer wall of the port of the adsorption cylinder (1476) is fixedly connected to a flexible patch (1477).

7. An electrical engineering power distribution switch according to claim 1, characterized in that: A cavity (101) is provided between the inner walls of the ends at both ends of the distribution box body (1), a connecting port (102) is provided on the inner wall of the cavity (101) close to the electrical component installation slot, sealing flaps (103) are evenly spaced and movably provided between the inner walls of the connecting port (102), upper and lower adjacent sealing flaps (103) are sequentially connected via a movable connecting rod (104), a heat conducting tube (105) is fixedly connected to the inner wall of the distribution box body (1) at the top of the connecting port (102), a piston push rod (106) is movably sleeved in a port of the heat conducting tube (105) close to one end of the sealing flap (103), the end of the piston push rod (106) is movably connected to the outer wall of a connecting strip (107) on the outer wall of the uppermost sealing flap (103), and a magnetic attraction block (108) is fixedly connected to the outer wall at the connection end of the lowermost sealing flap (103).

8. An electrical engineering power distribution switch as claimed in claim 7, characterized in that: When the gas sealed between the heat-conducting cylinder (105) and the piston push rod (106) is kept in an initial state, the sealing flap (103) is arranged vertically and parallel to seal the connecting port (102), and an air inlet (109) is opened on the side wall of the distribution box body (1) corresponding to the connecting port (102), and a dust-proof net (1010) is arranged between the inner walls of the upper and lower ends of the cavity (101) adjacent to the air inlet (109), and a dust-cleaning member (1011) is fixedly connected to the lower end of the top plate of the cavity (101) on the side of the dust-proof net (1010) away from the connecting port (102), and an inclined protrusion (1012) is fixedly connected to the bottom plate of the cavity (101), and the bottom plate of the dust-proof net (1010) is fixedly connected to the inclined top of the inclined protrusion (1012), and the inclined lower end of the inclined protrusion (1012) extends to the dust outlet on the side wall of the distribution box body (1).

9. An electrical engineering power distribution switch as claimed in claim 8, characterized in that: The dust cleaning component (1011) comprises a vibration spring (10111) fixedly connected to the lower end of the top plate and a cleaning scraper (10112) fixedly connected to the bottom of the vibration spring (10111); the vibration spring (10111) and the cleaning scraper (10112) are arranged alternately up and down, and a fixed hanging rope (10113) is fixedly connected to the bottom of the cleaning scraper (10112) at the bottom layer; a metal ball (10114) is fixedly connected to the lower end of the fixed hanging rope (10113); and the metal ball (10114) is arranged corresponding to the magnetic attraction block (108).

10. An electrical engineering power distribution switch as claimed in claim 9, characterized in that: An installation cavity (101141) is provided inside the metal ball (101144), a T-shaped touch rod (101142) is movably engaged in the installation cavity (101141), the end of the T-shaped touch rod (101142) extends to the outside of the metal ball (10114) through a guide channel (101143), the guide channel (101143) is arranged vertically to fix the suspension rope (10113), the end of the T-shaped touch rod (101142) is arranged close to the dustproof net (1010), and an elastic ball (101144) is movably engaged in the installation cavity (101141), and the elastic ball (101144) is engaged between the T-shaped touch rod (101142) and the inner wall of the installation cavity (101141).

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