CN117877908A - Production process of pole-mounted circuit breaker and pole-mounted circuit breaker produced by adopting production process - Google Patents

Abstract

The application relates to the technical field of circuit breakers, and discloses a production process of a pole-mounted circuit breaker and the pole-mounted circuit breaker produced by the process, which comprises the following steps: firstly, installing an arc-extinguishing chamber mechanism on a shell, and then installing an installation frame on an adjusting head in the arc-extinguishing chamber mechanism; step two, mounting a first copper sleeve, a second copper sleeve, a third copper sleeve, an aviation seat, a split-combined shaft, an energy storage shaft and a split-combined indicating shaft on a shell; step three, mounting the terminal seat and the auxiliary switch on the shell; installing the operating mechanism into the shell, and connecting the opening and closing shaft and the energy storage shaft with the operating mechanism; step five, installing a driving pull rod into the shell, enabling the installation frame and the operating mechanism to be connected with the driving pull rod, installing a brake separating mechanism on the inner wall of the accommodating groove, and enabling the brake separating mechanism to be connected with the driving pull rod; step six, install apron, sensor and isolator to the casing on, this application has the effect that promotes circuit breaker production efficiency.

Description

Production process of pole-mounted circuit breaker and pole-mounted circuit breaker produced by the process

Technical Field

The present application relates to the technical field of circuit breakers, and in particular to a production process of a pole-mounted circuit breaker and a pole-mounted circuit breaker produced by the process.

Background technique

The pole-mounted high-voltage vacuum circuit breaker is a switchgear used in high-voltage power systems. The working principle of the high-voltage vacuum circuit breaker is to use the rapid diffusion of plasma to extinguish the arc when the current passes through zero in a vacuum, thereby achieving the purpose of cutting off the current.

A pole-mounted high-voltage vacuum circuit breaker in the related art includes a housing, on which are arranged many parts such as a vacuum arc extinguishing chamber, an operating mechanism, an operating handle, a tripping mechanism, a copper sleeve, etc.

The installation of the existing pole-mounted circuit breaker is that the workers install whatever parts they get into the housing first, and the installation efficiency is low.

Summary of the invention

In order to improve the production efficiency of pole-mounted circuit breakers, the present application provides a production process of a pole-mounted circuit breaker and a pole-mounted circuit breaker produced by the process.

The present application provides a production process for a pole-mounted circuit breaker and a pole-mounted circuit breaker produced by the process, which adopts the following technical solutions:

A production process for a pole-mounted circuit breaker includes the following steps: Step 1, installing an arc extinguishing chamber mechanism on a housing, inserting an insulating pull rod into a receiving groove of the housing, placing an adjusting head connected to the insulating pull rod in the receiving groove, and then installing a mounting frame on the adjusting head;

Step 2: Install the first copper sleeve, the second copper sleeve, the third copper sleeve and the aviation seat on the side plate of the shell, then install the separation and combination shaft into the first copper sleeve, install the energy storage shaft into the second copper sleeve, and install the separation and combination indication shaft into the third copper sleeve;

Step 3, installing the terminal seat on the inner wall of the accommodating groove away from the first copper sleeve, and installing the auxiliary switch on the bottom wall of the accommodating groove;

Step 4: Install the operating mechanism into the housing so that the splitting and closing shaft and the energy storage shaft are connected to the operating mechanism;

Step 5: Install the driving rod into the housing, connect the mounting frame and the operating mechanism to the driving rod, install the opening mechanism on the inner wall of the accommodating groove, and connect the opening mechanism to the driving rod;

Step six, install the cover, sensor and isolating switch onto the housing in sequence.

By adopting the above technical solution, various components such as arc extinguishing chamber mechanism, copper sleeve, aviation seat, terminal seat, auxiliary switch, etc. are independently installed on the housing, so that all components have a clear installation order and position, making the installation and maintenance of the equipment simple and convenient, which makes production and maintenance more convenient and improves the production efficiency of the circuit breaker; if a problem occurs in a component, it can be easily disassembled and replaced without affecting other parts.

Optionally, in step 1, the arc extinguishing chamber mechanism is assembled as follows: S1, assembling the pull rod assembly, and then installing the pull rod assembly on the lower insulating member;

S2, assembling the arc extinguishing chamber assembly, and then installing the arc extinguishing chamber assembly on the upper insulating member;

S3, assembling the upper insulating member and the lower insulating member;

The assembly of the pull rod assembly includes the following steps: first, install the first spring cover, the compression spring, the second spring cover, the pull rod sleeve, the pull rod nut, the pull rod spring washer and the adjusting head in sequence outside the insulating pull rod; then install the assembled pull rod assembly on the workbench with the adjusting head facing upward, and use the workbench to force the adjusting head downward to squeeze the compression spring so that the front and rear hole cores of the pull rod sleeve are aligned with the hole positions on the insulating pull rod, and connect the pull rod sleeve and the insulating pull rod by pins.

By adopting the above technical solution, the installation of the pull rod assembly is realized, and the compression spring in the pull rod assembly is in a compressed state, so that the compression spring is further compressed when the circuit breaker performs a closing action and provides resetting power for the adjusting head when the circuit breaker performs an opening action.

Optionally, between step five and step six, the following steps are included: first installing the fire extinguishing mechanism into the shell, then installing the locking assembly on the driving rod to connect the locking assembly to the fire extinguishing mechanism, and then installing the dehumidification mechanism on the cover plate.

Optionally, the fire extinguishing mechanism includes a storage box installed on the inner wall of the accommodating tank and a one-way valve arranged on the cover plate, the storage box is provided with a storage cavity for storing liquid nitrogen, the storage box is provided with a discharge hole connected to the storage cavity, and the storage box is provided with a solenoid valve installed at the discharge hole.

By adopting the above technical solution, when a fire occurs in the shell, the solenoid valve opens, allowing liquid nitrogen to enter the shell, and the liquid nitrogen is converted into nitrogen gas, which squeezes the air in the shell out of the shell through the one-way valve, thereby extinguishing the fire.

Optionally, a slot connected to the discharge hole is provided on the side of the storage box, and the locking assembly includes a locking spring and a plug plate arranged in the slot, the bottom wall of the slot and the plug plate are fixedly connected to the locking spring, a through hole that can be connected to the discharge hole is provided on the plug plate, and a mounting rod is provided on the end surface of the plug plate away from the locking spring, and the mounting rod is connected to the driving pull rod.

By adopting the above technical solution, the mounting rod is connected to the driving pull rod, and when the circuit breaker is switched between closing and opening, the plug plate is driven to move. When the through hole is aligned with the discharge hole, the solenoid valve is opened to transport the liquid nitrogen into the shell; this prevents leakage of liquid nitrogen when the solenoid valve is damaged, thereby playing a role of insurance.

Optionally, the dehumidification mechanism includes an operation box arranged on the cover plate, an operation cavity is provided in the operation box, a desiccant is stored in the storage cavity, an operation groove is provided on the upper end surface of the operation box, the operation groove penetrates the shell along the length direction of the shell, and an operation channel connected to the operation cavity is provided on the inner wall of the operation groove.

By adopting the above technical solution, the water vapor in the receiving tank enters the operating cavity through the operating channel, and the desiccant absorbs the water vapor to perform dehumidification treatment on the inside of the receiving tank.

Optionally, the dehumidification mechanism also includes an operating spring arranged on the bottom wall of the operating slot and a top block arranged below the plug plate, an operating plate for blocking the operating channel is provided on the side of the operating spring away from the bottom wall of the operating slot, the plug plate abuts against the end surface of the operating plate away from the operating spring, a gap is left between the plug plate and the inner wall of the operating slot, and the top block is used to drive the operating plate to descend and no longer block the operating channel.

By adopting the above technical solution, when the driving rod moves along the length direction, the top block moves toward the operating panel, the top block contacts the operating panel and drives the operating panel to descend, so that the operating panel no longer blocks the operating channel, and the desiccant in the operating box can dehumidify the inside of the shell; otherwise, the operating panel blocks the operating channel.

Optionally, the operation box is provided with a guide groove on the end face along the length direction of the shell, and the end face of the shell facing the cover plate is provided with a mounting groove for inserting the operation box. When the operation box is installed on the shell, the edge of the mounting groove is inserted into the guide groove.

By adopting the above technical solution, the edge of the installation groove is inserted into the guide groove, which plays a guiding role in the connection between the operation box and the shell; in addition, the connection strength between the cover plate and the shell can be improved, making it difficult for the operation box to be separated from the shell.

Optionally, an operating component connecting the operating box and the cover plate is provided between the two, and a mounting hole for the operating box to pass through is formed on the cover plate. The operating component includes a baffle plate provided on the side of the operating box and a clamping plate provided on the side of the cover plate away from the shell, an end surface of the clamping plate away from the mounting hole is provided with an elastic clamping block, and an end surface of the baffle plate away from the cover plate is provided with a clamping hole for the clamping plate and the clamping block to pass through.

By adopting the above technical solution, the operation box and the cover plate can be connected with the help of the card plate, the card block and the baffle plate, and conversely, the operation box can be separated from the cover body; when the desiccant inside the operation box needs to be replaced, the operation box can be separated from the cover body, and then the desiccant can be replaced without removing the cover plate, which facilitates the time for maintenance and replacement; the separation of the operation box and the cover plate will not affect other parts of the circuit breaker, avoiding damage to other parts.

A pole-mounted circuit breaker comprises a shell, a receiving groove is formed at the bottom of the shell, a cover plate for sealing the receiving groove is arranged at the bottom of the shell, an arc extinguishing chamber mechanism is arranged at the upper end of the shell, the arc extinguishing chamber mechanism comprises an adjusting head inserted into the receiving groove, a mounting frame is arranged on the adjusting head, an operating mechanism for providing closing power, an opening mechanism for providing opening power and a driving rod for transmitting power are arranged in the shell, the driving rod is connected to the mounting frame, a first copper sleeve, a second copper sleeve, a third copper sleeve and an aviation seat are also installed on the shell, a separation and combination shaft is inserted in the first copper sleeve, a storage shaft is inserted in the second copper sleeve, a separation and combination indicating shaft is inserted in the third copper sleeve, a terminal seat and an auxiliary switch are arranged on the inner wall of the shell, and a sensor and an isolating switch are arranged on the outer side of the shell.

In summary, the present application includes at least one of the following beneficial technical effects:

1. All components such as arc extinguishing chamber mechanism, copper sleeve, aviation seat, terminal seat, auxiliary switch, etc. are independently installed on the housing, so that all components have a clear installation order and position, making the installation and maintenance of the equipment simple and convenient, which makes production and maintenance more convenient and improves the production efficiency of the circuit breaker; if a component has a problem, it can be easily disassembled and replaced without affecting other parts;

2. A fire extinguishing mechanism is provided to extinguish a fire when it occurs inside the shell, and a dehumidification mechanism is provided to dehumidify the inside of the shell.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the structure of an embodiment of the present application;

FIG2 is a schematic diagram highlighting the internal structure of the housing;

FIG3 is a schematic diagram highlighting the structure of the arc extinguishing chamber assembly;

FIG4 is a schematic diagram showing another perspective of the arc extinguishing chamber assembly structure;

FIG5 is a bottom view showing the structure of the circuit breaker;

Fig. 6 is a partial cross-sectional view along line A-A in Fig. 5 with the dehumidification mechanism in a closed state;

FIG7 is a schematic diagram highlighting the internal structure of the housing;

Fig. 8 is a partial cross-sectional view along line A-A in Fig. 5 with the dehumidification mechanism in an open state;

FIG. 9 is a schematic diagram highlighting the structure of the operation box.

Reference numerals: 1, housing; 11, accommodating groove; 12, first copper sleeve; 121, splitting and closing shaft; 122, splitting and closing handle; 13, second copper sleeve; 131, energy storage shaft; 132, energy storage handle; 14, third copper sleeve; 141, splitting and closing indicating shaft; 142, indicating needle; 15, aviation seat; 16, mounting groove; 2, cover plate; 21, mounting hole; 3, arc extinguishing chamber mechanism; 31, pull rod assembly; 311, insulating pull rod; 312, first spring cover; 313, compression spring; 314, second spring cover; 315, rod sleeve; 316, rod nut; 317, adjustment head; 32, arc extinguishing chamber assembly; 321, vacuum tube; 322, connecting rod; 323, metal clip; 324, conductive clamp block; 325, flange; 33, upper insulating member; 34, lower insulating member; 35, mounting bracket; 4, auxiliary switch; 41, terminal block; 5, operating mechanism; 6, driving rod; 61, locking assembly; 62, installation Mounting rod; 63, plug plate; 631, through hole; 632, slider; 64, locking spring; 7, opening mechanism; 71, opening rod; 72, opening spring; 73, single-hole hanging spring plate; 74, double-hole hanging spring plate; 8, fire extinguishing mechanism; 81, storage box; 811, storage cavity; 812, discharge hole; 813, slot; 814, slide; 82, solenoid valve; 83, starting assembly; 831, controller; 832, temperature detector; 833, smoke Detector; 84, one-way valve; 9, dehumidification mechanism; 91, operation box; 911, guide groove; 912, operation chamber; 913, operation groove; 914, operation channel; 915, limit groove; 916, punching hole; 917, second one-way water-permeable membrane; 918, first one-way water-permeable membrane; 92, operation panel; 921, limit block; 93, operation spring; 94, top block; 95, operation assembly; 951, baffle; 952, card plate; 953, card block.

Detailed ways

The present application is further described in detail below in conjunction with Figures 1-9.

The present embodiment discloses a production process of a pole-mounted circuit breaker and a pole-mounted circuit breaker produced by the process. Referring to FIG1 , a pole-mounted circuit breaker comprises a housing 1 and a cover plate 2. The housing 1 is provided with three arc-extinguishing chamber mechanisms 3. The three arc-extinguishing chamber mechanisms 3 are arranged in an array along the length direction of the housing 1.

1 and 2, the bottom wall of the housing 1 is provided with a receiving groove 11, and the bottom wall of the receiving groove 11 is provided with three receiving holes. The three receiving holes are distributed in an array along the length direction of the housing 1. The housing 1 and the cover plate 2 are connected by fasteners, and the fasteners can be nuts.

1 and 3, the arc extinguishing chamber mechanism 3 includes a rod assembly 31, an arc extinguishing chamber assembly 32, an upper insulating member 33 and a lower insulating member 34. The rod assembly 31 is disposed in the lower insulating member 34. The rod assembly 31 includes an insulating rod 311, a first spring cover 312, a compression spring 313, a second spring cover 314, a rod sleeve 315, a rod nut 316, a rod spring washer and an adjusting head 317.

3 and 4 , the first spring cover 312, the compression spring 313 and the second spring cover 314 are all sleeved outside the insulating pull rod 311. The first spring cover 312 is located on one side of the compression spring 313, and the second spring cover 314 is located on the side of the compression spring 313 away from the first spring cover 312.

3 and 4, the rod sleeve 315 is sleeved outside the insulating rod 311, and the rod sleeve 315 is located on the side of the second spring cover 314 away from the compression spring 313. The front and rear holes of the rod sleeve 315 are aligned with the holes on the insulating rod 311, and the insulating rod 311 and the rod sleeve 315 are connected by pins.

3 and 4, the rod nut 316 is threadedly connected to the outside of the insulating rod 311, and the rod nut 316 is located on the side of the rod sleeve 315 away from the second spring cover 314. The rod spring washer sleeve is arranged outside the insulating rod 311, and the rod spring washer is located outside the rod nut 316 and the rod sleeve 315.

2 and 4, the insulating pull rod 311 passes through the receiving hole and is inserted into the receiving groove 11. The adjusting head 317 is threadedly connected to the insulating pull rod 311. The adjusting head 317 is located on the side of the pull rod nut 316 away from the pull rod sleeve 315 and is inserted into the receiving hole. One end of the adjusting head 317 inserted into the receiving groove 11 is connected to the mounting bracket 35.

3 and 4 , the arc extinguishing chamber assembly 32 is disposed in the upper insulating member 33. The arc extinguishing chamber assembly 32 includes a vacuum tube 321, a connecting rod 322, a metal clip 323, a conductive clamping block 324 and a flange 325. The metal clip 323 and the conductive clamping block 324 are connected by bolts and nuts, so that the conductive clamping block 324 is located between two clips of the metal clip 323.

3 and 4 , the connecting rod 322 is connected to the moving end of the vacuum tube 321 . The metal clamp 323 is sleeved outside the connecting rod 322 , so that the two conductive clamping blocks 324 clamp the moving end of the vacuum tube 321 .

2 and 4 , the flange 325 is disposed between the upper insulator 33 and the lower insulator 34 , and the upper insulator 33 and the lower insulator 34 are connected and fixed by bolts and nuts.

2 , an auxiliary switch 4 , a terminal block 41 , an operating mechanism 5 , a driving pull rod 6 , a tripping mechanism 7 and a fire extinguishing mechanism 8 are arranged in the accommodation groove 11 .

1 and 2, a first copper sleeve 12, a second copper sleeve 13, a third copper sleeve 14 and an aviation seat 15 are installed on a side plate of the housing 1 along the width direction. A separation shaft 121 is inserted into the first copper sleeve 12. A separation handle 122 is sleeved on the separation shaft 121, and the separation handle 122 is located outside the housing 1. The second copper sleeve 13 is located between the first copper sleeve 12 and the third copper sleeve 14.

1 and 2, an energy storage shaft 131 is inserted into the second copper sleeve 13. An energy storage handle 132 is sleeved on the energy storage shaft 131, and the energy storage handle 132 is located outside the housing 1. A separation and closing indication shaft 141 is inserted into the third copper sleeve 14, and an indication needle 142 is sleeved on the separation and closing indication shaft 141. The indication needle 142 is located outside the housing 1 and is used to indicate whether the circuit breaker is in a closed or open state. The aviation seat 15 is located on the side of the third copper sleeve 14 away from the first copper sleeve 12.

1 and 2 , the operating mechanism 5 is used to provide closing power for closing the circuit breaker. Both the opening and closing shaft 121 and the energy storage shaft 131 are connected to the operating mechanism 5 .

1 and 2 , the auxiliary switch 4 is fixedly connected to the bottom wall of the receiving groove 11 . The terminal seat 41 is fixedly connected to the inner wall of the receiving groove 11 away from the first copper sleeve 12 .

2 and 3, the driving rod 6 is connected to the operating mechanism 5, and the three mounting brackets 35 are all connected to the driving rod 6. When the driving rod 6 moves along the length direction of the housing 1, the mounting brackets 35 move along the vertical direction.

2 , the opening mechanism 7 includes an opening rod 71, an opening spring 72, a single-hole spring plate 73 and a double-hole spring plate 74. The opening rod 71 is passed through the driving rod 6, and the axial direction of the opening rod 71 is consistent with the width direction of the housing 1.

2 , two single-hole spring plates 73 are provided, and the driving pull rod 6 is located between the two single-hole spring plates 73. The single-hole spring plates 73 are sleeved on the opening lever 71.

2 , two double-hole spring plates 74 are provided, and the double-hole spring plates 74 are fixedly connected to the inner wall of the accommodating groove 11 , and the double-hole spring plates 74 are located on the side of the driving rod 6 away from the operating mechanism 5 .

2 , two opening springs 72 are provided, one end of the opening spring 72 is connected to the single-hole hanging spring plate 73 , and the other end of the opening spring 72 is connected to the double-hole hanging spring plate 74 .

Referring to FIG. 2 , two fire extinguishing mechanisms 8 are arranged in the receiving groove 11, and the two fire extinguishing mechanisms 8 are symmetrically distributed. The fire extinguishing mechanism 8 is located on the side of the driving pull rod 6 away from the first copper sleeve 12. When a fire occurs on the inner wall of the housing 1, the fire extinguishing mechanism 8 is used to extinguish the fire. One fire extinguishing mechanism 8 is used in the circuit breaker closed state, and the other fire extinguishing mechanism 8 is used in the circuit breaker open state.

5 and 6, the fire extinguishing mechanism 8 includes a storage box 81, a solenoid valve 82, a starting assembly 83 and a one-way valve 84. The storage box 81 is fixedly connected to the inner wall of the receiving tank 11. A storage chamber 811 is provided in the storage box 81, and a fire extinguishing agent is arranged in the storage chamber 811, and the fire extinguishing agent adopts liquid nitrogen. A discharge hole 812 is provided on the upper end surface of the storage box 81, and the discharge hole 812 is connected to the storage chamber 811. The solenoid valve 82 is installed at the discharge hole 812 of the storage box 81. When the solenoid valve 82 is opened, the fire extinguishing agent enters the receiving tank 11, and the liquid nitrogen absorbs the heat in the receiving tank 11 and converts it into nitrogen, and squeezes the air in the receiving hole to the outside of the shell 1.

5 and 6 , the one-way valve 84 is installed on the cover plate 2 so that the air in the receiving groove 11 can be transported to the outside of the housing 1 through the one-way valve 84. In other embodiments, the one-way valve 84 can also be arranged on the housing 1.

7, the starter assembly 83 is disposed on the storage box 81, and the starter assembly 83 is used to control the opening and closing of the solenoid valve 82. The starter assembly 83 includes a controller 831, a temperature detector 832 and a smoke detector 833. The temperature detector 832 is used to detect the temperature inside the housing 1. The temperature detector 832 is a temperature comparator with the inner wall of the controller 831.

7 , similarly, the smoke detector 833 is used to detect smoke inside the housing 1, and the smoke detector 833 is electrically connected to the smoke comparator inside the controller 831. The controller 831 is electrically connected to the solenoid valve 82. In combination with the feedback from the temperature detector 832 and the smoke detector 833, the controller 831 controls the solenoid valve 82 to open or close.

6 and 7, two locking assemblies 61 are provided on the driving rod 6, and each of the two locking assemblies 61 realizes the opening and closing of a discharge hole 812. A slot 813 is provided on the end surface of the storage box 81 along the length direction of the shell 1, and the slot 813 is connected to the discharge hole 812. The locking assembly 61 includes a mounting rod 62, a plug plate 63 and a locking spring 64.

6 and 7 , the mounting rod 62 is fixedly connected to the end surface of the driving rod 6 along the width direction. The insert plate 63 and the locking spring 64 are both arranged in the slot 813, one end of the locking spring 64 is fixedly connected to the bottom wall of the slot 813, and the other end of the locking spring 64 is fixedly connected to the insert plate 63.

6 and 8, a slide groove 814 is provided on the upper inner wall of the slot 813, and the slide groove 814 is in the shape of a long strip groove, and the length of the slide groove 814 is consistent with the axial direction of the slot 813. A slider 632 is fixedly connected to the upper end surface of the plug plate 63, and the slider 632 is slidably arranged in the slide groove 814. One end of the plug plate 63 away from the bottom wall of the slot 813 is connected and fixed to the mounting rod 62. A through hole 631 is provided on the upper end surface of the plug plate 63. When the slider 632 collides with the inner wall of the slide groove 814 close to the bottom wall of the slot 813, the through hole 631 is connected with the discharge hole 812. When the slider 632 collides with the inner wall of the slide groove 814 away from the bottom wall of the slot 813, the through hole 631 is staggered with the discharge hole 812, and the locking spring 64 is in a compressed state.

6, 7 and 8, when the driving rod 6 is in the closed state or the open state, the through hole 631 on one of the plug plates 63 is connected to the discharge hole 812 on the storage box 81, and the through hole 631 on the other plug plate 63 is staggered with the discharge hole 812 on the storage box 81.

6, 7 and 8, in other embodiments, the locking assembly 61 is provided as one, and the locking assembly 61 is located between the two fire extinguishing mechanisms 8. The locking assembly 61 includes a connecting rod 322, two plug plates 63 and two locking springs 64. The connecting rod 322 is fixedly connected to the end surface of the driving pull rod 6 along the width direction. The plug plate 63 is fixedly connected to the end surface of the connecting rod 322 facing the storage box 81. The two plug plates 63 are each inserted into a slot 813.

2 and 7, two dehumidification mechanisms 9 are arranged on the end surface of the cover plate 2 facing the fire extinguishing mechanism 8, and the two dehumidification mechanisms 9 are distributed along the length direction of the housing 1. Each dehumidification mechanism 9 corresponds to a fire extinguishing mechanism 8. The dehumidification mechanism 9 is located on the side of the driving rod 6 away from the first copper sleeve 12. The dehumidification mechanism 9 includes an operation box 91, an operation plate 92, an operation spring 93 and a top block 94.

6 and 7, the end surface of the cover plate 2 facing the housing 1 is provided with a mounting hole 21, and the operation box 91 is inserted into the mounting hole 21. Two operating components 95 connecting the operation box 91 and the cover plate 2 are arranged between the two, and the two operating components 95 are symmetrically distributed along the vertical center axis of the operation box 91.

6 and 7, the operating assembly 95 includes a baffle 951, a clamping plate 952 and a clamping block 953. The clamping plate 952 is fixedly connected to the side of the cover plate 2 away from the fire extinguishing mechanism 8. The clamping block 953 is fixedly connected to the end surface of the clamping plate 952 away from the operating box 91, and the clamping block 953 is elastic. The clamping block 953 and the clamping plate 952 can pass through. In other embodiments, the clamping block 953 can be fixedly connected to the end surface of the clamping block 953 facing the operating box 91.

6 and 7, the baffle 951 is fixedly connected to the side of the operation box 91, and the baffle 951 is located on the side of the cover plate 2 away from the housing 1. The end surface of the baffle 951 facing the cover plate 2 is provided with a clamping hole, through which the clamping block 953 and the clamping plate 952 can pass.

2 and 7, a mounting groove 16 is provided on the side of the housing 1 away from the arc extinguishing chamber mechanism 3, and the mounting groove 16 penetrates the housing 1 along the width direction of the housing 1. A guide groove 911 is provided on the end surface of the operating box 91 along the length direction of the housing 1, and a sealing strip is fixedly connected to the inner wall of the guide groove 911. The mounting groove 16 can be inserted into the operating box 91. When the cover plate 2 is installed on the housing 1, the edge of the mounting groove 16 is inserted into the guide groove 911, so that the inner wall of the mounting groove 16 abuts against the sealing strip, which plays a guiding and sealing role.

6 and 8 , an operation chamber 912 is formed on the inner wall of the operation box 91 . A desiccant is stored in the operation chamber 912 . The desiccant is a graphene desiccant, a molecular sieve desiccant, or the like.

6, 7 and 9, an operation slot 913 is provided on the upper end surface of the operation box 91, and the operation slot 913 penetrates the operation box 91 along the length direction of the driving pull rod 6. The operation slot 913 is located above the operation cavity 912, and operation channels 914 are provided on both side inner walls of the operation slot 913, and the operation channels 914 are connected to the operation cavity 912. A first one-way water-permeable membrane 918 is fixedly connected to the opening of the operation channel 914 near the operation slot 913, so that water vapor in the air enters the operation cavity 912 from the containing groove 11, so that the water vapor can be absorbed by the desiccant.

2 and 9 , the inner walls of both sides of the operation groove 913 are provided with limit grooves 915. The limit grooves 915 are in the shape of long strips and extend in the vertical direction. The operation plate 92 is arranged in the operation groove 913, and the end surface of the operation plate 92 facing the limit groove 915 is fixedly connected to the limit block 921, and the limit block 921 is slidably arranged in the limit groove 915.

6 and 9, the operating spring 93 is fixedly connected to the bottom wall of the operating slot 913, and the end surface of the operating spring 93 away from the bottom wall of the operating slot 913 is fixedly connected to the operating plate 92. When the operating plate 92 is only subjected to the force of the operating spring 93, the operating plate 92 seals the opening of the operating channel 914.

6 and 7, a punch hole 916 is provided on the end surface of the operation box 91 away from the driving rod 6, and the punch hole 916 is connected to the operation chamber 912. A second one-way water-permeable membrane 917 is provided in the punch hole 916 to allow the desiccant to exchange heat with the outside, so that the water in the operation box 91 evaporates to the outside, and the desiccant can be used again.

2 and 6, the top block 94 is fixedly connected to the lower end surface of the plug plate 63. The top block 94 is provided with a chamfer, which is provided at the junction of the end surface of the top block 94 away from the plug plate 63 and the side of the top block 94 facing the storage box 81. When the cover plate 2 is mounted on the housing 1, one plug plate 63 is inserted into the operation groove 913, so that the lower end surface of the plug plate 63 abuts against the upper end surface of the operating plate 92, and a gap is left between the plug plate 63 and the inner wall of the operation groove 913. The other plug plate 63 and the top block 94 are inserted into the operation groove 913 together, so that the lower end of the top block 94 abuts against the upper end of the operating plate 92, and a gap is left between the plug plate 63 and the inner wall of the operation groove 913.

1 , a sensor is fixedly connected to one side of the housing 1 away from the opening and closing handle 122. An isolating switch is installed on the side of the housing 1, but the isolating switch is not shown in the figure.

This embodiment also discloses a production process of a pole-mounted circuit breaker, comprising the following steps:

Step 1: Install the arc extinguishing chamber mechanism 3 on the housing 1, insert the insulating rod 311 into the receiving groove 11 of the housing 1, make the adjusting head 317 connected to the insulating rod 311 located in the receiving groove 11, and then install the mounting frame 35 on the adjusting head 317;

Step 2: Install the first copper sleeve 12, the second copper sleeve 13, the third copper sleeve 14 and the aviation seat 15 on the side plate of the housing 1, then install the separation and combination shaft 121 into the first copper sleeve 12, install the energy storage shaft 131 into the second copper sleeve 13, and install the separation and combination indication shaft 141 into the third copper sleeve 14;

Step 3: Install the terminal seat 41 on the inner wall of the accommodating groove 11 away from the first copper sleeve 12, and install the auxiliary switch 4 on the bottom wall of the accommodating groove 11;

Step 4: Install the operating mechanism 5 into the housing 1 so that the separation and combination shaft 121 and the energy storage shaft 131 are connected to the operating mechanism 5;

Step 5: Install the driving rod 6 into the housing 1, connect the mounting frame 35 and the operating mechanism 5 to the driving rod 6, and then install the opening mechanism 7 on the inner wall of the accommodating groove 11, and connect the opening mechanism 7 to the driving rod 6;

Step six: install the cover plate 2, the sensor and the isolating switch onto the housing 1 in sequence.

In step 1, the arc extinguishing chamber mechanism 3 is assembled as follows: S1, assembling the pull rod assembly 31;

S2, assembling the arc extinguishing chamber assembly 32;

S3, assembling the arc extinguishing chamber assembly 32 and the upper insulating member 33;

S4, assembling the tie rod assembly 31 and the lower insulating member 34;

S5, assembling the upper insulating member 33 and the lower insulating member 34.

The assembly of the pull rod assembly 31 includes the following steps: first, install the first spring cover 312, the compression spring 313, the second spring cover 314, the pull rod sleeve 315, the pull rod nut 316, the pull rod spring washer and the adjustment head 317 in sequence outside the insulating pull rod 311; then install the assembled pull rod assembly 31 on the workbench with the adjustment head 317 facing upward, and use the workbench to force the adjustment head 317 downward to squeeze the compression spring 313, so that the front and rear hole cores of the pull rod sleeve 315 are aligned with the hole positions on the insulating pull rod 311, and connect the pull rod sleeve 315 and the insulating pull rod 311 by pins.

The assembly of the arc extinguishing chamber assembly 32 includes the following steps: first, install the connecting rod 322 on the vacuum tube 321, then connect the metal clip 323 with the conductive clamp block 324, sleeve the metal clip 323 and the conductive clamp block 324 on the outside of the vacuum tube 321, and pass the connecting rod 322 through the metal clip 323, and then install the flange 325 on the vacuum tube 321.

In step five, the assembly of the opening mechanism 7 includes the following steps: first, install the opening rod 71 on the driving rod 6, install the double-hole spring plate 74 on the inner wall of the accommodating groove 11, and then install the single-hole spring plate 73 on the opening rod 71, and then connect the single-hole spring plate 73 with the double-hole spring plate 74 through the opening spring 72.

Between step five and step six, the following steps are included: installing the fire extinguishing mechanism 8 into the housing 1 , and installing the dehumidifying mechanism 9 onto the cover plate 2 .

The fire extinguishing mechanism 8 includes a storage box 81 installed on the inner wall of the side of the accommodating groove 11, the storage box 81 is provided with a storage cavity 811 for storing liquid nitrogen, the storage box 81 is provided with a discharge hole 812 connected to the storage cavity 811, the storage box 81 is provided with a solenoid valve 82 installed at the discharge hole 812, the storage box 81 is provided with a slot 813 connected to the discharge hole 812 on the side of the storage box 81, the locking assembly 61 includes a locking spring 64 and a plug plate 63 arranged in the slot 813, the bottom wall of the slot 813 and the plug plate 63 are fixedly connected to the locking spring 64, the plug plate 63 is provided with a through hole 631 that can be connected to the discharge hole 812, and the end surface of the plug plate 63 away from the locking spring 64 is provided with a mounting rod 62, and the mounting rod 62 is connected to the driving pull rod 6.

The dehumidification mechanism 9 includes an operation box 91 arranged on the cover plate 2, an operation chamber 912 is provided in the operation box 91, a desiccant is stored in the storage chamber 811, an operation groove 913 is provided on the upper end surface of the operation box 91, the operation groove 913 penetrates the shell 1 along the length direction of the shell 1, and an operation channel 914 connected to the operation chamber 912 is provided on the inner wall of the operation groove 913.

The dehumidification mechanism 9 also includes an operating spring 93 arranged on the bottom wall of the operating groove 913 and a top block 94 arranged below the plug plate 63. An operating plate 92 for blocking the operating channel 914 is arranged on the side of the operating spring 93 away from the bottom wall of the operating groove 913. The plug plate 63 abuts against the end surface of the operating plate 92 away from the operating spring 93. A gap is left between the plug plate 63 and the inner wall of the operating groove 913. The top block 94 is used to drive the operating plate 92 to descend and no longer block the operating channel 914.

The operation box 91 has a guide groove 911 on the end surface along the length direction of the shell 1, and the shell 1 has a mounting groove 16 on the end surface facing the cover plate 2 for inserting the operation box 91. When the operation box 91 is installed on the shell 1, the edge of the mounting groove 16 is inserted into the guide groove 911.

An operating assembly 95 connecting the operating box 91 and the cover plate 2 is provided between the two. A mounting hole 21 for the operating box 91 to pass through is provided on the cover plate 2. The operating assembly 95 includes a baffle 951 provided on the side of the operating box 91 and a clamping plate 952 provided on the side of the cover plate 2 away from the shell 1. An elastic clamping block 953 is provided on the end surface of the clamping plate 952 away from the mounting hole 21, and a clamping hole for the clamping plate 952 and the clamping block 953 to pass through is provided on the end surface of the baffle 951 away from the cover plate 2.

The production process of a pole-mounted circuit breaker in an embodiment of the present application and the implementation principle of the pole-mounted circuit breaker produced by the process are as follows: by assembling the arc extinguishing chamber mechanism 3, and then installing the arc extinguishing chamber mechanism 3, the separation and combination shaft 121, the energy storage shaft 131, the separation and combination indication shaft 141, the terminal seat 41, the auxiliary switch 4, the operating mechanism 5, the driving rod 6, the opening mechanism 7 and other parts on the housing 1 in sequence, so as to realize the standardization of circuit breaker assembly and improve the production efficiency of the circuit breaker.

Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims (10)

1. A production process of a pole-mounted circuit breaker is characterized by comprising the following steps of: the method comprises the following steps: firstly, an arc extinguishing chamber mechanism (3) is mounted on a shell (1), an insulating pull rod (311) is inserted into a containing groove (11) of the shell (1), an adjusting head (317) connected with the insulating pull rod (311) is positioned in the containing groove (11), and then a mounting frame (35) is mounted on the adjusting head (317);

step two, a first copper sleeve (12), a second copper sleeve (13), a third copper sleeve (14) and an aviation seat (15) are installed on a side plate of a shell (1), a split shaft (121) is installed in the first copper sleeve (12), an energy storage shaft (131) is installed in the second copper sleeve (13), and a split indicating shaft (141) is installed in the third copper sleeve (14);

step three, a terminal seat (41) is arranged on the inner wall of the accommodating groove (11) far away from the first copper sleeve (12), and the auxiliary switch (4) is arranged on the bottom wall of the accommodating groove (11);

installing an operating mechanism (5) into the shell (1) to enable the opening and closing shaft (121) and the energy storage shaft (131) to be connected with the operating mechanism (5);

step five, installing a driving pull rod (6) into the shell (1), enabling the installation frame (35) and the operating mechanism (5) to be connected with the driving pull rod (6), installing a brake separating mechanism (7) on the inner wall of the accommodating groove (11), and enabling the brake separating mechanism (7) to be connected with the driving pull rod (6);

and step six, sequentially installing the cover plate (2), the sensor and the isolating switch on the shell (1).

2. A process for the production of a pole-mounted circuit breaker according to claim 1, characterized in that: in the first step, the assembling steps of the arc extinguishing chamber mechanism (3) are as follows: s1, assembling a pull rod assembly (31), and then installing the pull rod assembly (31) on a lower insulating piece (34);

s2, assembling the arc-extinguishing chamber assembly (32), and then mounting the arc-extinguishing chamber assembly (32) on the upper insulating piece (33);

s3, assembling the upper insulating piece (33) and the lower insulating piece (34);

the assembly of the pull rod assembly (31) comprises the following steps: first, a first spring cover (312), a pressure spring (313), a second spring cover (314), a pull rod sleeve (315), a pull rod nut (316), a pull rod elastic pad and an adjusting head (317) are sequentially arranged outside an insulating pull rod (311); and then the assembled pull rod assembly (31) is installed on a workbench, the adjusting head (317) faces upwards, the pressure spring (313) is pressed downwards by the stress of the adjusting head (317) through the workbench, the front and rear hole cores of the pull rod sleeve (315) are aligned with the hole sites on the insulating pull rod (311), and the pull rod sleeve (315) is connected with the insulating pull rod (311) through pins.

3. A process for the production of a pole-mounted circuit breaker according to claim 2, characterized in that: between the fifth step and the sixth step, the method comprises the following steps of firstly installing the fire extinguishing mechanism (8) into the shell (1), then installing the locking assembly (61) on the driving pull rod (6), connecting the locking assembly (61) with the fire extinguishing mechanism (8), and then installing the dehumidifying mechanism (9) on the cover plate (2).

4. A process for the production of a pole-mounted circuit breaker according to claim 3, characterized in that: the fire extinguishing mechanism (8) comprises a storage box (81) arranged on the side inner wall of the accommodating groove (11) and a one-way valve (84) arranged on the cover plate (2), a storage cavity (811) for storing liquid nitrogen is formed in the storage box (81), a discharge hole (812) communicated with the storage cavity (811) is formed in the storage box (81), and an electromagnetic valve (82) is arranged at the position of the storage box (81) located at the discharge hole (812).

5. The process for producing a pole-mounted circuit breaker according to claim 4, wherein: the side of depositing case (81) has seted up slot (813) of intercommunication discharge opening (812), locking subassembly (61) are including setting up locking spring (64) and picture peg (63) in slot (813), diapire and picture peg (63) of slot (813) all with locking spring (64) fixed connection, set up through-hole (631) that can communicate with discharge opening (812) on picture peg (63), the terminal surface that locking spring (64) was kept away from to picture peg (63) is provided with installation pole (62), installation pole (62) are connected with drive pull rod (6).

6. The process for producing a pole-mounted circuit breaker according to claim 5, wherein: the dehumidification mechanism (9) comprises an operation box (91) arranged on a cover plate (2), an operation cavity (912) is formed in the operation box (91), a drying agent is stored in a storage cavity (811), an operation groove (913) is formed in the upper end face of the operation box (91), the operation groove (913) penetrates through the shell (1) along the length direction of the shell (1), and an operation channel (914) communicated with the operation cavity (912) is formed in the inner wall of the operation groove (913).

7. The process for producing a pole-mounted circuit breaker according to claim 6, wherein: the dehumidification mechanism (9) further comprises an operation spring (93) arranged on the bottom wall of the operation groove (913) and a top block (94) arranged below the plugboard (63), one side, away from the bottom wall of the operation groove (913), of the operation spring (93) is provided with an operation board (92) for shielding an operation channel (914), the plugboard (63) is abutted against the end face, away from the operation spring (93), of the operation board (92), a gap is reserved between the plugboard (63) and the inner wall of the operation groove (913), and the top block (94) is used for driving the operation board (92) to descend and not shielding the operation channel (914).

8. The process for producing a pole-mounted circuit breaker according to claim 6, wherein: the control box (91) is provided with a guide groove (911) along the end face of the length direction of the shell (1), the end face of the shell (1) facing the cover plate (2) is provided with an installation groove (16) for the control box (91) to be inserted, and when the control box (91) is installed on the shell (1), the edge of the installation groove (16) is inserted into the guide groove (911).

9. The process for producing a pole-mounted circuit breaker according to claim 6, wherein: the operation box is characterized in that an operation assembly (95) for connecting the operation box (91) and the cover plate (2) is arranged between the operation box and the cover plate (2), a mounting hole (21) for the operation box (91) to pass through is formed in the cover plate (2), the operation assembly (95) comprises a baffle plate (951) arranged on the side face of the operation box (91) and a clamping plate (952) arranged on one side, far away from the shell (1), of the cover plate (2), an elastic clamping block (953) is arranged on the end face, far away from the mounting hole (21), of the clamping plate (952), and a clamping hole for the clamping plate (952) and the clamping block (953) to pass through is formed in the end face, far away from the cover plate (951).

10. A pole-mounted circuit breaker produced by the production process of the pole-mounted circuit breaker according to any one of claims 1-9, comprising a housing (1), characterized in that: the utility model provides a switch, including casing (1), casing (1) is provided with accommodation groove (11) bottom, casing (1) bottom is provided with apron (2) that are used for shutoff accommodation groove (11), casing (1) upper end is provided with explosion chamber mechanism (3), explosion chamber mechanism (3) are including inserting adjustment head (317) in accommodation groove (11), adjustment head (317) are provided with mounting bracket (35), be provided with in casing (1) operating device (5) that are used for providing closing power, be used for providing opening mechanism (7) and be used for transmitting actuating lever (6) of power, actuating lever (6) are connected with mounting bracket (35), still install first copper sheathing (12), second copper sheathing (13), third copper sheathing (14) and aviation seat (15) on casing (1), wear to be equipped with in second copper sheathing (13) and divide to close axle (121), wear to be equipped with energy storage axle (131) in third copper sheathing (14), it wears to be provided with in casing (1) and is equipped with auxiliary switch (41) and is provided with isolator (41).