CN110808196A

CN110808196A - Electrical engineering distribution circuit breaker

Info

Publication number: CN110808196A
Application number: CN201911139736.6A
Authority: CN
Inventors: 赵国霞; 邢子昂
Original assignee: Shandong Polytechnic
Current assignee: Shandong Polytechnic
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-02-18

Abstract

The invention provides an electrical engineering distribution circuit breaker, which comprises a glass fiber layer, a double-layer ceramic fiber layer, a water glass layer, a protective shell, a ventilation net, a circuit breaker body, a wiring socket, a voltage detection chip, a micro smoke-sensing alarm, a temperature control switch and a switching-on and switching-off control panel. The ventilation fan, the air box, the moisture-proof hollowed-out layer, the insect-proof net, the flow guide pipe, the pipe seat and the cooling pipe are arranged, so that the heat dissipation, temperature reduction, insect prevention and moisture proof operation of the circuit breaker body can be favorably carried out, a good ventilation effect can be achieved, the temperature is detected in real time through the temperature control switch, the ventilation fan starts to act after the preset temperature is reached, air is continuously blown into the air box, the moisture-proof and insect prevention operation is carried out through the moisture-proof hollowed-out layer and the insect-proof net, the working stability of the circuit breaker body is ensured, and the cooling operation can be carried out through the cold air scattered from the cooling pipe, so that.

Description

Electrical engineering distribution circuit breaker

Technical Field

The invention belongs to the technical field of electrical engineering, and particularly relates to an electrical engineering distribution circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.

The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.

Distribution of electricity is an extremely important link in the generation, transmission and use of electricity. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.

At present, the circuit breaker cannot be opened in the electrical engineering power distribution.

However, the existing circuit breaker also has the problems that the installation position of the circuit breaker is inconvenient to adjust, the wiring is inconvenient, and electric shock and poor ventilation and heat dissipation effects are easy to occur when an operator needs to close and open the main brake in a close range during closing.

Therefore, it is necessary to invent a distribution circuit breaker for electrical engineering.

Disclosure of Invention

In order to solve the technical problems, the invention provides an electrical engineering distribution circuit breaker, which aims to solve the problems that the existing circuit breaker is inconvenient to adjust the installation position of the circuit breaker, is inconvenient to wire, is easy to get an electric shock when an operator closes and opens a main brake in a short distance during closing and has poor ventilation and heat dissipation effects. An electrical engineering distribution circuit breaker comprises a glass fiber hollowed-out layer, a double hollowed-out layer ceramic fiber hollowed-out layer, a water glass hollowed-out layer, a protective shell, a ventilation net, a circuit breaker body, a wiring socket, a voltage detection chip, a miniature smoke alarm, a temperature control switch, a switching-on and switching-off control panel, a moistureproof, mothproof and cooling ventilation fan structure, a pluggable quick wiring row structure, a multiposition movable remote switching-on and switching-off pull rod structure and a movable adjusting and mounting fixing frame structure, wherein the glass fiber hollowed-out layer is longitudinally arranged on the outer surface of the water glass hollowed-out layer through the double hollowed-out layer ceramic fiber hollowed-out layer; the hollow-out layers of the water glass are respectively and longitudinally glued on the outer surface of the protective shell; the outlet of the left wall and the outlet of the right wall in the protective shell are connected with a ventilation net through screws; the longitudinal screw of the breaker body is connected to the middle position in the protective shell; the wiring socket is transversely and electrically connected to the lower end of the breaker body, and is connected to the middle position of the bottom of the inner side of the protective shell through a screw; the voltage detection chip is connected to the middle position of the lower side of the front part of the circuit breaker body through a transverse screw; the miniature smoke alarm is connected to the middle position of the front part of the circuit breaker body through a screw; the temperature control switch is connected to the middle position of the right side of the circuit breaker body through a longitudinal screw; the opening and closing control panel is electrically connected to the middle position of the upper side of the front part of the circuit breaker body; the moisture-proof insect-proof cooling ventilating fan structure is characterized in that a pluggable quick wiring row structure and a movable adjusting and mounting fixing frame structure are respectively connected with the protective shell; the multiposition movable remote opening and closing pull rod structure is connected with the circuit breaker body; the ventilating fan structure capable of preventing moisture, insects and reducing temperature comprises a ventilating fan, an air box, a moisture-proof hollowed layer, an insect-proof net, a flow guide pipe, a pipe seat and a cooling pipe, wherein the ventilating fan is sequentially connected to an upper inlet of the air box through screws from left to right; the moisture-proof hollowed-out layer is transversely screwed in the middle of the upper surface of the insect-proof net; the transverse screw of the insect-proof net is connected to the middle position in the air box; the middle positions of the left wall and the right wall inside the honeycomb duct are respectively connected with pipe seats through screws; the cooling pipe is transversely inserted in the middle of the inner side between the pipe seats.

Preferably, the pluggable quick wiring bar structure comprises four contact pins, a pluggable wire bar, a stainless steel ring, wiring holes, fastening screws, a U-shaped sliding block, linear sliding rails and wing-shaped screws, wherein the four contact pins are respectively and longitudinally connected to the left side and the right side of the upper part of the pluggable wire bar in a group of threads; the middle position of the lower part of the plug wire row is connected with a stainless steel ring through a bolt; the four wiring holes are longitudinally arranged on the left side and the right side of the inner part of the plugging line row in a group respectively; the fastening screws are respectively in threaded connection with the front parts of the plug wire rows; the U-shaped sliding blocks are respectively bolted at the left end and the right end of the plugging wire row; the U-shaped sliding blocks are respectively connected with the outer wall of the inner side of the linear sliding rail in a sliding and clamping mode and are fixedly connected through wing-shaped screws.

Preferably, the multiposition movable remote opening and closing pull rod structure comprises a opening and closing pull rod body, an opening and closing pull rod handle, a rectangular through groove, a movable bolt, a movable pipe, a movable rod and a connecting seat, wherein the opening and closing plate is transversely screwed at the upper end of the opening and closing pull rod body; the lower end of the opening and closing pull rod main body is in threaded connection with an opening and closing pull handle; a rectangular through groove is longitudinally formed in the upper side inside the split-joint pull rod main body; the movable bolt movably penetrates through the rectangular through groove and is in threaded connection with the middle position of the front part of the movable pipe; the movable pipe is movably sleeved on the outer wall of the movable rod; the transverse bearing of the movable rod is connected to the middle position inside the connecting seat.

Preferably, the movable adjusting and mounting fixing frame structure comprises a connecting seat, a vertical seat, a returning frame, an adjusting bolt, a mounting plate and a mounting hole, wherein the connecting seat is respectively connected to the upper part and the lower part of the inner side of the vertical seat through a transverse bolt; the clip-shaped frame is movably sleeved on the outer wall of the vertical seat and is fastened and connected through an adjusting bolt; the mounting plates are respectively connected to the middle positions of the outer sides of the back-shaped frames through transverse bolts; the mounting plate is internally and transversely provided with mounting holes.

Preferably, the outlet at the middle position of the bottom of the air box is connected with the upper end of the flow guide pipe through a bolt.

Preferably, the draft tube is a stainless steel tube with a rectangular longitudinal section.

Preferably, the moisture-proof hollowed-out layer is a quicklime hollowed-out layer.

Preferably, the insect-proof net is a stainless steel net coated with an insect-proof medicine hollow layer on the outer surface.

Preferably, the draft tube is longitudinally bolted at the middle position of the top of the inner side of the protective shell.

Preferably, the cooling pipe is a straight red copper condenser pipe.

Preferably, the contact pins are respectively arranged opposite to and matched with the wiring holes.

Preferably, the inside access cable of wiring hole after with contact pin electric connection setting.

Preferably, the contact pins and the plug wire row are electrically connected.

Preferably, a copper sheet is arranged inside the plugging wire row.

Preferably, the longitudinal upper ends of the linear sliding rails are respectively bolted to the middle position of the left side of the lower part of the protective shell.

Preferably, the contact pin is also inserted into the jack of the connection socket.

Preferably, the separation and combination plate body is made of a glass fiber reinforced plastic plate.

Preferably, the main body of the opening and closing pull rod is a rubber rod.

Preferably, the opening and closing pull handle is a rubber handle.

Preferably, the linking seats are respectively arranged on the left side and the right side of the lower part of the opening and closing control panel and are connected with the circuit breaker body through screws.

Preferably, the connecting seats are respectively and transversely bolted at four corners of the outer side of the protective shell.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the arrangement of the ventilating fan, the air box, the moisture-proof hollowed-out layer, the insect-proof net, the flow guide pipe, the pipe seat and the cooling pipe is favorable for heat dissipation and cooling of the circuit breaker body and insect-proof moisture-proof operation, and can play a good role in ventilation.

2. According to the invention, the arrangement of the contact pin, the plug wire row, the stainless steel ring, the wiring hole, the fastening screw, the U-shaped sliding block, the linear slide rail and the wing-shaped screw is favorable for quick wiring, the cable is inserted into the wiring hole and is fastened through the fastening screw, the position of the U-shaped sliding block on the outer wall of the linear slide rail can be adjusted by loosening the wing-shaped screw, the stainless steel ring is held by hand, the plug wire row drives the contact pin to move until the contact pin is inserted into the wiring socket, and finally the wing-shaped screw is locked to ensure the plug stability, so that the wiring can be conveniently carried out.

3. According to the invention, the opening and closing plate, the opening and closing pull rod main body, the opening and closing pull handle, the rectangular through groove, the movable bolt, the movable pipe, the movable rod and the connecting seat are arranged, so that the remote opening and closing operation is facilitated, the opening and closing pull rod main body is moved on the outer wall of the movable bolt through the handheld opening and closing pull handle, so that the opening and closing plate can stir the brake head, the opening and closing operation can be performed, the opening and closing operation of different brake heads can be performed through the movable operation of the movable pipe on the outer wall of the movable rod, the operation safety can be ensured, and the life safety of operators can be ensured.

4. According to the circuit breaker, the connecting seat, the vertical seat, the clip frame, the adjusting bolt, the mounting plate and the mounting hole are arranged, so that the mounting position can be moved and adjusted, the adjusting bolt is loosened, the position of the clip frame on the outer wall of the vertical seat can be adjusted in a sliding mode, the position of the protective shell can be adjusted in a position moving mode, the position of the circuit breaker body can be changed, the safety operation can be facilitated, the adjusting bolt is locked finally, and the mounting convenience is guaranteed.

5. According to the invention, the arrangement of the glass fiber layer, the double-layer ceramic fiber layer and the water glass layer is beneficial to playing a protection role and can play a fireproof and moistureproof role.

6. According to the invention, the arrangement of the protective shell and the ventilation net is favorable for playing a good ventilation and heat dissipation role.

7. In the invention, the voltage detection chip is favorable for detecting voltage, and the disconnection is not needed, thereby being convenient for detection.

8. According to the invention, the miniature smoke alarm is beneficial to detecting the working state of the circuit breaker body in real time, and can give an alarm for prompting if a smoke fire happens.

9. In the invention, the temperature control switch is arranged, so that the temperature control is facilitated, and the heat dissipation efficiency is ensured.

10. In the invention, the arrangement of the flow guide pipe is beneficial to playing a role of air guide and ensuring the air circulation rate.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the ventilating fan structure capable of preventing moisture, insects and cooling of the present invention.

Fig. 3 is a schematic structural diagram of the pluggable quick connection bank structure of the present invention.

Fig. 4 is a schematic structural diagram of the multiposition movable remote opening and closing brake pull rod structure of the invention.

Fig. 5 is a schematic structural view of the movably adjustable mounting fixture structure of the present invention.

In the figure:

1. a fiberglass hollow-out layer; 2. a double hollow-out layer ceramic fiber hollow-out layer; 3. a hollow-out layer of water glass; 4. a protective housing; 5. a ventilation net; 6. a circuit breaker body; 7. a connection socket; 8. a voltage detection chip; 9. a miniature smoke alarm; 10. a temperature control switch; 11. a switching-on and switching-off control panel; 12. a ventilating fan structure capable of preventing moisture, insects and cooling; 121. a ventilating fan; 122. an air box; 123. a moisture-proof hollowed-out layer; 124. an insect-proof net; 125. a flow guide pipe; 126. a tube holder; 127. a cooling pipe; 13. a pluggable quick wiring bar structure; 131. inserting a pin; 132. plugging and unplugging the cable row; 133. a stainless steel ring; 134. a wiring hole; 135. fastening screws; 136. a U-shaped slider; 137. a linear slide rail; 138. a thumb screw; 14. a multi-position movable remote opening and closing pull rod structure; 141. a plywood is divided; 142. a split draw bar body; 143. separating and combining the pull handle; 144. a rectangular through groove; 145. a movable bolt; 146. a movable tube; 147. a movable rod; 148. a linking seat; 15. the fixed frame structure can be movably adjusted and installed; 151. a connecting seat; 152. a vertical seat; 153. a back-shaping frame; 154. adjusting the bolt; 155. mounting a plate; 156. and (7) installing holes.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, and as shown in fig. 1 and fig. 2, an electrical engineering distribution circuit breaker comprises a glass fiber hollowed-out layer 1, a double hollowed-out layer ceramic fiber hollowed-out layer 2, a water glass hollowed-out layer 3, a protective shell 4, a ventilation net 5, a circuit breaker body 6, a wiring socket 7, a voltage detection chip 8, a micro smoke alarm 9, a temperature control switch 10, a switching control panel 11, a moisture-proof, insect-proof, temperature-reducing ventilation fan structure 12, a pluggable fast wiring row structure 13, a multiposition movable remote switching pull rod structure 14 and a movable adjusting and mounting frame structure 15, wherein the glass fiber hollowed-out layer 1 is respectively and longitudinally arranged on the outer surface of the water glass hollowed-out layer 3 through the double hollowed-out layer ceramic fiber hollowed-out layer 2; the hollow-out layers 3 of the water glass are respectively and longitudinally glued on the outer surface of the protective shell 4; the outlet of the left wall and the outlet of the right wall in the protective shell 4 are connected with a ventilation net 5 through screws; the longitudinal screw of the breaker body 6 is connected to the middle position in the protective shell 4; the wiring socket 7 is transversely and electrically connected to the lower end of the breaker body 6, and is connected to the middle position of the bottom of the inner side of the protective shell 4 through a screw; the voltage detection chip 8 is transversely screwed at the middle position of the lower side of the front part of the circuit breaker body 6; the miniature smoke alarm 9 is connected to the middle position of the front part of the circuit breaker body 6 through a screw; the temperature control switch 10 is longitudinally screwed at the middle position of the right side of the circuit breaker body 6; the opening and closing control panel 11 is electrically connected to the middle position of the upper side of the front part of the circuit breaker body 6; the moistureproof insect-proof cooling ventilating fan structure 12, the pluggable quick wiring board structure 13 and the movable adjusting and mounting fixing frame structure 15 are respectively connected with the protective shell 4; the multiposition movable remote opening and closing pull rod structure 14 is connected with the circuit breaker body 6; the ventilating fan structure 12 capable of preventing moisture and insects and reducing temperature comprises a ventilating fan 121, an air box 122, a moisture-proof hollowed-out layer 123, an insect-proof net 124, a flow guide pipe 125, a pipe seat 126 and a temperature reduction pipe 127, wherein the ventilating fan 121 is sequentially connected to an upper inlet of the air box 122 through screws from left to right; the moisture-proof hollowed-out layer 123 is transversely screwed in the middle of the upper surface of the insect-proof net 124; the insect-proof net 124 is transversely screwed at the middle position in the air box 122; the middle positions of the left wall and the right wall inside the guide pipe 125 are respectively connected with a pipe seat 126 through screws; cooling tube 127 transversely peg graft the inboard intermediate position between tube socket 126, through temperature detect switch 10 real-time detection temperature, reach preset temperature after, ventilation fan 121 begins to move, constantly blows to bellows 122 inside to carry out dampproofing protection against insects operation through dampproofing fretwork layer 123 and fly net 124, with the job stabilization nature who guarantees circuit breaker body 6, through the air conditioning that cooling tube 127 effluvium, can cool down the operation, with the life of guaranteeing circuit breaker body 6.

In this embodiment, referring to fig. 3, the pluggable fast wiring board structure 13 includes four contact pins 131, a pluggable line board 132, a stainless steel ring 133, a wiring hole 134, a fastening screw 135, a U-shaped slider 136, a linear slide rail 137, and a wing screw 138, where the four contact pins 131 are respectively connected to the left and right sides of the upper portion of the pluggable line board 132 in a group of threads; the middle position of the lower part of the plug wire row 132 is connected with a stainless steel ring 133 through a bolt; the four wiring holes 134 are respectively longitudinally arranged on the left side and the right side of the inner part of the plug wire row 132 in a group; the fastening screws 135 are respectively screwed on the front parts of the plug wire rows 132; the U-shaped sliding blocks 136 are respectively bolted at the left end and the right end of the plugging wire row 132; u type slider 136 slide joint respectively at linear slide rail 137's inboard outer wall, and set up through thumb screw 138 fastening connection, insert the cable inside wiring hole 134, and fasten through fastening screw 135, through loosening thumb screw 138, can adjust U type slider 136 position at linear slide rail 137 outer wall, handheld stainless steel ring 133, make plug wire row 132 drive contact pin 131 and remove, until contact pin 131 inserts inside the socket 7, lock thumb screw 138 at last, in order to guarantee grafting stability, can be convenient for carry out the wiring, only need carry out the plug can, convenient to detach, convenient operation.

In this embodiment, as shown in fig. 4, the multiposition movable remote opening and closing pull rod structure 14 includes a opening and closing pull rod body 141, an opening and closing pull rod body 142, an opening and closing pull handle 143, a rectangular through groove 144, a movable bolt 145, a movable tube 146, a movable rod 147 and a linking seat 148, wherein the opening and closing plate 141 is transversely screwed to the upper end of the opening and closing pull rod body 142; the lower end of the opening and closing pull rod main body 142 is in threaded connection with an opening and closing pull handle 143; a rectangular through groove 144 is longitudinally formed in the upper side of the inside of the opening and closing pull rod main body 142; the movable bolt 145 movably penetrates through the rectangular through groove 144 and is in threaded connection with the middle position of the front part of the movable pipe 146; the movable tube 146 is movably sleeved on the outer wall of the movable rod 147; the transverse bearing of the movable rod 147 is connected to the middle position inside the connecting seat 148, the switching pull rod body 142 is moved to move on the outer wall of the movable bolt 145 through the handheld switching pull handle 143, the switching plate 141 can be enabled to toggle the brake heads, switching operation can be carried out, and switching operation of different brake heads can be carried out through the movable operation of the movable tube 146 on the outer wall of the movable rod 147, so that the operation safety is ensured, and the life safety of operators can be ensured.

In this embodiment, referring to fig. 5, the movable adjustable mounting and fixing frame structure 15 includes a connecting seat 151, an upright seat 152, a clip frame 153, an adjusting bolt 154, a mounting plate 155 and a mounting hole 156, wherein the connecting seat 151 is respectively and transversely bolted to the upper and lower parts of the inner side of the upright seat 152; the clip frame 153 is movably sleeved on the outer wall of the vertical seat 152 and is fastened and connected by an adjusting bolt 154; the mounting plates 155 are respectively and transversely bolted at the middle positions of the outer sides of the die-returning frames 153; the inside of mounting panel 155 transversely seted up mounting hole 156, through loosening adjusting bolt 154, can carry out the slide adjusting and return the position of type frame 153 at the outer wall of founding seat 152, can carry out the position that the position moved and adjusted protecting sheathing 4, can change the position of circuit breaker body 6 to carry out safe operation, last locking adjusting bolt 154 can, guarantee the installation convenience.

In this embodiment, specifically, the outlet at the middle position of the bottom of the air box 122 is bolted to the upper end of the flow guide pipe 125.

In this embodiment, the flow guide tube 125 is specifically a stainless steel tube with a rectangular longitudinal section.

In this embodiment, specifically, the moisture-proof hollowed-out layer 123 specifically adopts a quicklime hollowed-out layer.

In this embodiment, the insect-proof net 124 is a stainless steel net coated with an insect-proof agent hollow layer on the outer surface.

In this embodiment, specifically, the draft tube 125 is longitudinally bolted to the middle of the top of the inner side of the protective casing 4.

In this embodiment, the cooling pipe 127 specifically adopts a straight red copper condenser pipe.

In this embodiment, specifically, the pins 131 are respectively disposed opposite to and in cooperation with the wiring holes 134.

In this embodiment, specifically, the wiring hole 134 is electrically connected to the pin 131 after the cable is inserted therein.

In this embodiment, specifically, the pins 131 and the plug wire row 132 are electrically connected.

In this embodiment, specifically, a copper sheet is disposed inside the plug wire row 132.

In this embodiment, specifically, the upper ends of the linear sliding rails 137 are respectively bolted to the middle positions of the left side of the lower part of the protective casing 4.

In this embodiment, specifically, the plug pin 131 is further inserted into the jack of the connection socket 7.

In this embodiment, the laminated plate 141 is specifically a glass fiber reinforced plastic plate.

In this embodiment, the engaging and disengaging pull rod main body 142 is specifically a rubber rod.

In this embodiment, the engaging and disengaging pull handle 143 is specifically a rubber handle.

In this embodiment, specifically, the linking seats 148 are respectively disposed on the left and right sides of the lower portion of the switching control panel 11, and are connected to the circuit breaker body 6 by screws.

In this embodiment, specifically, the connection bases 151 are respectively and transversely bolted to four corners of the outer side of the protection casing 4.

In this embodiment, specifically, the temperature control switch 10 and the ventilation fan 121 are connected by a wire.

In this embodiment, specifically, the voltage detection chip 8 specifically adopts an HT7119A-1A type voltage detection chip, the miniature smoke detector alarm 9 specifically adopts an YB020 type smoke detector alarm, the temperature control switch 10 specifically adopts a KSD301 type temperature control switch, and the ventilation fan 121 specifically adopts a GL22060HB1 type axial flow fan.

Principle of operation

In the invention, the temperature is detected in real time through the temperature control switch 10, after the preset temperature is reached, the ventilating fan 121 starts to act, air is continuously blown into the air box 122, moisture-proof and insect-proof operation is carried out through the moisture-proof hollowed-out layer 123 and the insect-proof net 124 so as to ensure the working stability of the circuit breaker body 6, the cooling operation can be carried out through cold air emitted by the cooling pipe 127 so as to ensure the service life of the circuit breaker body 6, cables are inserted into the wiring holes 134 and are fastened through the fastening screws 135, the position of the U-shaped sliding block 136 on the outer wall of the linear sliding rail 137 can be adjusted through loosening the wing-shaped screws 138, the stainless steel ring 133 is held by hand, so that the plug wire row 132 drives the plug pins 131 to move until the plug pins 131 are inserted into the wiring socket 7, finally the wing-shaped screws 138 are locked so as to ensure the plug stability, the wiring, move deciliter pull rod main part 142 through handheld deciliter pull handle 143 and move at activity bolt 145 outer wall, can make and divide the plywood 141 to stir the brake head, can divide the operation, through the activity operation of movable tube 146 at activity pole 147 outer wall, can carry out different brake heads and close the branch operation, in order to guarantee the operational safety, and can guarantee operating personnel's life safety, through loosening adjusting bolt 154, can slide and adjust the position of returning type frame 153 at founding seat 152 outer wall, can carry out the position of position removal regulation protecting sheathing 4, can change the position of circuit breaker body 6, in order to carry out safe operation, locking adjusting bolt 154 at last can, guarantee the installation convenience.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. An electrical engineering distribution circuit breaker is characterized by comprising a glass fiber hollowed-out layer (1), a double hollowed-out layer ceramic fiber hollowed-out layer (2), a water glass hollowed-out layer (3), a protective shell (4), a ventilation net (5), a circuit breaker body (6), a wiring socket (7), a voltage detection chip (8), a miniature smoke alarm (9), a temperature control switch (10) and a switching-on and switching-off control panel (11), a ventilating fan structure (12) capable of preventing moisture and insect and reducing temperature, a pluggable quick wiring row structure (13), a multiposition movable remote opening and closing pull rod structure (14) and a movable adjusting and mounting fixed frame structure (15), the glass fiber hollowed-out layers (1) are respectively and longitudinally arranged on the outer surface of the water glass hollowed-out layer (3) through the double hollowed-out layer ceramic fiber hollowed-out layers (2); the hollow-out layers (3) of the water glass are respectively and longitudinally glued to the outer surface of the protective shell (4); the outlet of the left wall and the outlet of the right wall in the protective shell (4) are connected with a ventilation net (5) by screws; the longitudinal screw of the breaker body (6) is connected to the middle position in the protective shell (4); the wiring socket (7) is transversely and electrically connected to the lower end of the breaker body (6) and is in screwed connection with the middle position of the bottom of the inner side of the protective shell (4); the voltage detection chip (8) is transversely screwed at the middle position of the lower side of the front part of the circuit breaker body (6); the miniature smoke alarm (9) is connected to the middle position of the front part of the circuit breaker body (6) through a screw; the temperature control switch (10) is longitudinally screwed at the middle position of the right side of the circuit breaker body (6); the opening and closing control panel (11) is electrically connected to the middle position of the upper side of the front part of the circuit breaker body (6); the moisture-proof insect-proof cooling ventilating fan structure (12), the pluggable quick wiring board structure (13) and the movable adjusting and mounting fixing frame structure (15) are respectively connected with the protective shell (4); the multiposition movable remote opening and closing pull rod structure (14) is connected with the circuit breaker body (6); the ventilating fan structure (12) capable of preventing moisture and insects and reducing temperature comprises a ventilating fan (121), an air box (122), a moisture-proof hollowed layer (123), an insect-proof net (124), a flow guide pipe (125), a pipe seat (126) and a cooling pipe (127), wherein the ventilating fan (121) is sequentially connected to an upper inlet of the air box (122) through screws from left to right; the moisture-proof hollowed-out layer (123) is transversely screwed in the middle of the upper surface of the insect-proof net (124); the transverse screw of the insect-proof net (124) is connected to the middle position in the air box (122); the middle positions of the left wall and the right wall in the guide pipe (125) are respectively connected with a pipe seat (126) through screws; the cooling pipe (127) is transversely inserted in the middle position of the inner side between the pipe seats (126).

2. The electrical engineering distribution circuit breaker according to claim 1, wherein the pluggable quick connection bar structure (13) comprises pins (131), a pluggable line bar (132), a stainless steel ring (133), a connection hole (134), a fastening screw (135), a U-shaped slider (136), a linear slide rail (137) and a wing screw (138), wherein the pins (131) are respectively and longitudinally connected to the left side and the right side of the upper part of the pluggable line bar (132) in a group of four threads; the middle position of the lower part of the plug wire row (132) is connected with a stainless steel ring (133) through a bolt; the four wiring holes (134) are respectively longitudinally arranged on the left side and the right side of the inner part of the plug wire row (132) in a group; the fastening screws (135) are respectively in threaded connection with the front part of the plug wire row (132); the U-shaped sliding blocks (136) are respectively connected to the left end and the right end of the plug wire row (132) through bolts; the U-shaped sliding blocks (136) are respectively clamped on the inner side outer wall of the linear sliding rail (137) in a sliding mode and are fixedly connected and arranged through wing-shaped screws (138).

3. The electrical engineering distribution circuit breaker as claimed in claim 1, wherein said multiposition movable remote opening and closing pull rod structure (14) comprises a switch plate (141), a switch pull rod body (142), a switch pull handle (143), a rectangular through groove (144), a movable bolt (145), a movable tube (146), a movable rod (147) and a linking seat (148), said switch plate (141) is transversely screwed to the upper end of the switch pull rod body (142); the lower end of the opening and closing pull rod main body (142) is in threaded connection with an opening and closing pull handle (143); a rectangular through groove (144) is longitudinally formed in the upper side inside the split-joint pull rod main body (142); the movable bolt (145) movably penetrates through the inside of the rectangular through groove (144) and is in threaded connection with the middle position of the front part of the movable pipe (146); the movable pipe (146) is movably sleeved on the outer wall of the movable rod (147); the movable rod (147) is connected to the inner middle position between the joint seats (148) through a transverse bearing.

4. The electrical engineering distribution circuit breaker of claim 1, wherein the movable adjustable mounting fixture structure (15) comprises a connecting base (151), a vertical base (152), a clip frame (153), an adjusting bolt (154), a mounting plate (155) and a mounting hole (156), the connecting base (151) is respectively and transversely bolted on the upper and lower parts of the inner side of the vertical base (152); the return frame (153) is movably sleeved on the outer wall of the vertical seat (152) and is fixedly connected and arranged through an adjusting bolt (154); the mounting plates (155) are respectively and transversely bolted at the middle positions of the outer sides of the swage blocks (153); the mounting plate (155) is internally and transversely provided with a mounting hole (156).

5. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the outlet at the bottom intermediate position of the bellows (122) is bolted to the upper end of the flow duct (125).

6. Electrical engineering distribution circuit breaker according to claim 1, characterized in that said duct (125) is a stainless steel tube with a rectangular longitudinal section.

7. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the moisture-proof openwork layer (123) is a quicklime openwork layer.

8. The electrical engineering distribution circuit breaker of claim 1, wherein said insect-proof net (124) is a stainless steel net coated with an insect-proof agent hollow layer on its outer surface.

9. Electrical engineering distribution circuit breaker according to claim 2, characterized in that said duct (125) is bolted longitudinally in an intermediate position on the inside top of the protective casing (4).

10. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the cooling pipe (127) is embodied as a straight copper condenser pipe.