CN110768111A - Power distribution cabinet for field - Google Patents

Power distribution cabinet for field Download PDF

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Publication number
CN110768111A
CN110768111A CN201911108437.6A CN201911108437A CN110768111A CN 110768111 A CN110768111 A CN 110768111A CN 201911108437 A CN201911108437 A CN 201911108437A CN 110768111 A CN110768111 A CN 110768111A
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CN
China
Prior art keywords
groove
shell
sliding
wire
wall
Prior art date
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Granted
Application number
CN201911108437.6A
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Chinese (zh)
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CN110768111B (en
Inventor
吴杭昇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHONGSHAN HUASHUN ELECTRICAL Co.,Ltd.
Original Assignee
Ningbo Fenghua Pingxi Distribution Technology Co Ltd
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Application filed by Ningbo Fenghua Pingxi Distribution Technology Co Ltd filed Critical Ningbo Fenghua Pingxi Distribution Technology Co Ltd
Priority to CN201911108437.6A priority Critical patent/CN110768111B/en
Publication of CN110768111A publication Critical patent/CN110768111A/en
Priority to JP2020066143A priority patent/JP6813743B1/en
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Publication of CN110768111B publication Critical patent/CN110768111B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24Circuit arrangements for boards or switchyards
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Patch Boards (AREA)
  • Connection Or Junction Boxes (AREA)
  • Fuses (AREA)

Abstract

The invention discloses a field power distribution cabinet, which comprises a shell, wherein a power distribution box is arranged in the shell, a fiber layer is arranged between the power distribution box and the shell, a dehumidifying structure is arranged in the shell, the dehumidifying structure can absorb air in the fiber layer and dehumidify the air through a dehumidifying agent, and a protection circuit is arranged in the shell and can output electric energy in the power distribution box.

Description

Power distribution cabinet for field
Technical Field
The invention relates to the field of power distribution cabinets, in particular to a field power distribution cabinet.
Background
In modern society, energization is realized in a plurality of remote mountain areas, but the power supply requirements of the mountain areas are different from those of cities, so that a special power distribution cabinet is needed to change the transmitted current and voltage, and normal power supply can be further provided for the mountain areas, but the power distribution cabinet can be generally installed on a telegraph pole in the field, cannot be maintained in time, is greatly influenced by weather, and is easy to cause the situation of short circuit and electric leakage due to rainwater infiltration into the power distribution cabinet.
Disclosure of Invention
The technical problem is as follows:
the inconvenient and great that receives the weather influence of open-air switch board maintenance, the rainwater infiltration causes the condition of short circuit electric leakage in the switch board to appear easily.
In order to solve the problems, the power distribution cabinet for the field is designed in the embodiment, the power distribution cabinet for the field comprises a shell, a power distribution box is arranged in the shell, a fiber layer is arranged between the power distribution box and the shell, the fiber layer is non-conductive, and further can be prevented from being conducted to the shell when the power distribution box leaks electricity, so that the shell is also electrified, a dehumidifying structure is arranged in the shell, the dehumidifying structure can absorb air in the fiber layer and dehumidify through a dehumidifying agent, the fiber layer is prevented from being wetted to form a conductor, a protection circuit is arranged in the shell, the protection circuit can output electric energy in the power distribution box, when the power distribution cabinet is struck by lightning, the current output in the protection circuit is increased instantly, the protection circuit can automatically break the circuit, the power distribution box can be protected, and a rain baffle plate is arranged on the upper side of the shell, the rain baffle can shield rain for the shell, rain water is prevented from permeating into the shell to influence the work of the distribution box, the lower end of the shell is propped against and is provided with an arc-shaped bottom plate, a connecting plate is fixedly connected between the arc-shaped bottom plate and the rain baffle, a flange structure is arranged in the arc-shaped bottom plate, the flange structure can prevent the shell from rotating at an overlarge angle under the condition of strong wind and can prevent the shell from being blown off, the right end of the arc-shaped bottom plate is fixedly connected with a supporting rod, a supporting threaded hole is arranged in the supporting rod in a left-right through mode, a screw can pass through the supporting threaded hole and fix the supporting rod on a telegraph pole, a rotating shaft is fixedly connected at the right end of the shell, the rotating shaft is rotatably connected with the connecting plate, a fixed block is arranged at the right side of the rotating shaft, a torsion spring groove with an opening towards, both ends have linked firmly the fixed plate around the torsional spring groove, what link up around in the fixed plate is equipped with fixed screw hole, available screw passes through fixed screw hole will the fixed plate is fixed on the wire pole, because the screw passes through support the screw hole and fixed screw hole mutually perpendicular's fixing on the wire pole, stability is good.
Preferably, the rotation axis right-hand member with it has the reset torsion spring to link firmly between the torsional spring groove right side inner wall, and strong wind blows the shell drives the rotation axis rotates, and then twists reverse the reset torsion spring, this moment the shell just reduces to the area of the direction of wind, can be less the shell receives the power of wind, is in after the windbreak drive under the spring action of reset torsion spring the shell rotates vertical state.
Beneficially, the flange structure includes locating of symmetry around in the arc bottom plate and the ascending arc wall of opening, slidable is equipped with the flange slider in the arc wall, the flange slider offset respectively in both ends around the shell, the flange slider be close to symmetric center one end with the arc wall is close to and has linked firmly connecting spring between the inner wall of symmetric center one side, blows when the shell rotates, promotes corresponding one side the flange slider slides and tensile corresponding one side connecting spring, connecting spring can cushion the rotation of shell, can after the windbreak drive under connecting spring's the spring action flange slider slides, and then can assist the shell reversal is up to vertical state.
Beneficially, the protection circuit comprises a groove which is arranged in the shell and has a right opening, a sliding conductive block is slidably arranged in the groove, a main wire is connected between the sliding conductive block and the distribution box, a fixed conductive block is fixedly arranged in the connecting plate, an output wire is connected to the right end of the fixed conductive block, when the sliding conductive block is in contact with the fixed conductive block, the distribution box can output current through the main wire, the sliding conductive block, the fixed conductive block and the output wire, a wire groove is arranged in the inner wall of the upper side of the groove, two connecting wires are arranged in the wire groove, the connecting wires are electrically connected to the main wire, a fuse wire is electrically connected between the connecting wires, a protection adhesive layer is sleeved on the fuse wire, a pull wire is wound on the protection adhesive layer, and a spring groove is arranged in the inner wall of the lower side of the wire groove, the inner wall of the lower side of the spring groove is communicated with the groove, a sliding baffle is slidably arranged in the spring groove, one end of the stay wire is fixedly connected with the sliding baffle, a compression spring is fixedly connected between the upper end of the sliding baffle and the inner wall of the upper side of the spring groove, a clamping groove with a leftward opening is arranged in the sliding baffle, a guide chute is communicated in the inner wall of the left side of the spring groove, a clamping block is slidably arranged in the guide chute, the right end of the clamping block can slide into the clamping groove and clamp the sliding baffle, the lower end of the clamping block is fixedly connected with the sliding conductive block, when the lightning strike happens, the current passing through the main wire is suddenly increased, and then the current passing through the connecting wire and the fuse wire is increased, so that the fuse wire is fused, at the moment, the sliding baffle is pushed to slide downwards under the elastic action of the, and then drive the slip conducting block to slip left and with fixed conducting block is disconnected, and the slide damper slides in the recess and seals the recess this moment, and then can avoid the block terminal to receive the damage.
Preferably, two guide wheels are rotatably connected between the front inner wall and the rear inner wall of the wire groove, and the guide wheels can guide the pull wire.
Preferably, a reset spring is fixedly connected between the left end of the fixture block and the inner wall of the left side of the guide sliding groove, one fusible link is reconnected between the connecting wires during maintenance, the stay wire is rewound on the protective adhesive layer, the sliding baffle is pulled to ascend at the moment, and then the fixture block is pushed to be clamped into the clamping groove under the elastic action of the reset spring, and the sliding conductive block is driven to slide and be reconnected with the fixed conductive block.
Beneficially, the dehumidifying structure comprises a gas storage cavity arranged in the inner wall of the upper side of the wire slot, the dehumidifying agent is arranged in the gas storage cavity, gas channels are arranged in the inner walls of the upper side and the lower side of the gas storage cavity in a communicated mode, an air suction pump is fixedly arranged between the gas channels and can be used for sucking air from the fiber layer, the gas channels on the upper side are used for exhausting the air into the gas storage cavity, water vapor in the air is removed through the dehumidifying agent, the air after dehumidification is exhausted into the fiber layer again through the gas channels on the lower side and the air suction pump, and accordingly the fiber layer can be prevented from being wetted.
The invention has the beneficial effects that: the invention is fixed on the outdoor telegraph pole through the mutually vertical screws, thereby improving the stability, avoiding electric leakage caused by rainwater infiltration or dampness, avoiding being blown down by strong wind, automatically breaking the circuit under lightning stroke, further improving the overall safety, and protecting the circuit, and having simple and convenient maintenance operation.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of an overall structure of a field power distribution cabinet according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is an enlarged schematic view of "B" of FIG. 1;
FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;
fig. 5 is an enlarged schematic view of "D" of fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a field power distribution cabinet, which comprises a shell 14, wherein a power distribution box 12 is arranged in the shell 14, a fiber layer 13 is arranged between the power distribution box 12 and the shell 14, the fiber layer 13 is not conductive, so that the power distribution box 12 can be prevented from being conducted to the shell 14 when electric leakage occurs, the shell 14 is also electrified, a dehumidifying structure 102 is arranged in the shell 14, the dehumidifying structure 102 can absorb air in the fiber layer 13 and dehumidify through a dehumidifying agent 31, the fiber layer 13 is prevented from being wetted to form a conductor, a protection circuit 100 is arranged in the shell 14, the protection circuit 100 can output electric energy in the power distribution box 12, when lightning strike occurs, the current output in the protection circuit 100 is increased instantly, at the moment, the protection circuit 100 can automatically disconnect the circuit, so that the power distribution box 12 can be protected, a rain baffle 15 is arranged on the upper side of the shell 14, the rain baffle 15 can shield rain for the shell 14, so as to prevent rainwater from infiltrating into the shell 14 to affect the work of the distribution box 12, the lower end of the shell 14 is provided with an arc-shaped bottom plate 11 in an abutting mode, a connecting plate 22 is fixedly connected between the arc-shaped bottom plate 11 and the rain baffle 15, a flange structure 101 is arranged in the arc-shaped bottom plate 11, the flange structure 101 can prevent the rotation angle of the shell 14 from being too large under the condition of strong wind and can prevent the shell 14 from being blown off, the right end of the arc-shaped bottom plate 11 is fixedly connected with a support rod 23, a support threaded hole 24 is formed in the support rod 23 in a left-right through mode, a screw can pass through the support threaded hole 24 and fix the support rod 23 on the right end of a telegraph pole, the shell 14 is fixedly connected with a rotating shaft 16, the rotating shaft 16 is rotatably connected to the, be equipped with the opening torsion spring groove 18 to the left in the fixed block 17, 16 right-hand members of rotation axis stretch into in the torsion spring groove 18 and with fixed block 17 rotates to be connected, both ends have linked firmly fixed plate 20 around the torsion spring groove 18, what link up around in the fixed plate 20 is equipped with fixing screw hole 19, and available screw passes through fixing screw hole 19 will fixed plate 20 fixes on the wire pole, because the screw passes through support screw hole 24 and fixing screw hole 19 mutually perpendicular's fixing on the wire pole, stability is good.
Beneficially, a reset torsion spring 21 is fixedly connected between the right end of the rotating shaft 16 and the inner wall of the right side of the torsion spring groove 18, the outer shell 14 is blown by strong wind and drives the rotating shaft 16 to rotate, and then the reset torsion spring 21 is twisted, at the moment, the area of the outer shell 14 in the direction opposite to the wind is reduced, the acting force of the wind on the outer shell 14 can be reduced, and the outer shell 14 is driven to rotate to the vertical state under the elastic force of the reset torsion spring 21 after the wind stops.
According to the embodiment, the rib structure 101 will be described in detail below, the rib structure 101 includes arc-shaped slots 25 which are symmetrically arranged in the arc-shaped bottom plate 11 in front and back and open upwards, a flange slide block 27 is slidably arranged in the arc-shaped groove 25, the flange slide blocks 27 respectively abut against the front end and the rear end of the shell 14, a connecting spring 26 is fixedly connected between one end of the flange sliding block 27 close to the symmetrical center and the inner wall of the arc-shaped groove 25 close to the symmetrical center, when strong wind blows the shell 14 to rotate, the flange slide block 27 on the corresponding side is pushed to slide and the connecting spring 26 on the corresponding side is stretched, the connecting spring 26 can buffer the rotation of the housing 14, and after windage, the flange sliding block 27 can be driven to slide under the elastic force of the connecting spring 26, so that the housing 14 can be assisted to rotate reversely until the housing is in a vertical state.
According to the embodiment, the following detailed description will be made on the protection circuit 100, the protection circuit 100 includes a groove 35 disposed in the housing 14 and having a right opening, a sliding conductive block 37 is slidably disposed in the groove 35, a main wire 33 is connected between the sliding conductive block 37 and the distribution box 12, a fixed conductive block 38 is fixedly disposed in the connection plate 22, an output wire 32 is connected to the right end of the fixed conductive block 38, when the sliding conductive block 37 contacts the fixed conductive block 38, the distribution box 12 can output current through the main wire 33, the sliding conductive block 37, the fixed conductive block 38 and the output wire 32, a wire slot 47 is disposed in an inner wall of an upper side of the groove 35, two connection wires 34 are disposed in the wire slot 47, the connection wires 34 are electrically connected to the main wire 33, and a fuse 49 is electrically connected between the connection wires 34, the fuse wire 49 is sleeved with a protective adhesive layer 48, the protective adhesive layer 48 is wound with a stay wire 46, the inner wall of the lower side of the wire slot 47 is internally communicated with a spring slot 45, the inner wall of the lower side of the spring slot 45 is communicated with the groove 35, the spring slot 45 is internally slidably provided with a sliding baffle 42, one end of the stay wire 46 is fixedly connected with the sliding baffle 42, a compression spring 43 is fixedly connected between the upper end of the sliding baffle 42 and the inner wall of the upper side of the spring slot 45, the sliding baffle 42 is internally provided with a clamping slot 41 with a leftward opening, the inner wall of the left side of the spring slot 45 is internally communicated with a guide slot 36, a clamping block 40 is slidably arranged in the guide slot 36, the right end of the clamping block 40 can slide into the clamping slot 41 and clamp the sliding baffle 42, the lower end of the clamping block 40 is fixedly connected with the sliding conductive block 37, and when, then, the current passing through the connecting wire 34 and the fuse wire 49 is increased, so that the fuse wire 49 is fused, at this time, the elastic force of the spring groove 45 pushes the sliding baffle 42 to slide downwards, so as to push the fixture block 40 to slide leftwards, further drive the sliding conductive block 37 to slide leftwards and be disconnected from the fixed conductive block 38, at this time, the sliding baffle 42 slides into the groove 35 and seals the groove 35, and further the distribution box 12 can be prevented from being damaged.
Advantageously, two guide wheels 44 are rotatably connected between the front and rear inner walls of the wire groove 47, and the guide wheels 44 can guide the pull wire 46.
Beneficially, a return spring 39 is fixedly connected between the left end of the fixture block 40 and the inner wall of the left side of the guiding chute 36, when in maintenance, one fusible link 49 is reconnected between the connecting wires 34, the pulling wire 46 is rewound on the protective adhesive layer 48, at this time, the sliding baffle 42 is pulled to rise, and then the fixture block 40 is pushed to be clamped into the clamping groove 41 under the elastic force of the return spring 39, and the sliding conductive block 37 is driven to slide and reconnect with the fixed conductive block 38.
According to an embodiment, the dehumidifying structure 102 is described in detail below, the dehumidifying structure 102 includes a gas storage cavity 30 disposed in an upper inner wall of the wire chase 47, the dehumidifying agent 31 is disposed in the gas storage cavity 30, gas passages 29 are disposed in the upper and lower inner walls of the gas storage cavity 30 in a communicating manner, a suction pump 28 is fixedly disposed between the gas passages 29, air can be sucked from the fiber layer 13 by the suction pump 28, and then discharged into the gas storage cavity 30 through the gas passage 29 on the upper side, so that moisture in the air is removed by the dehumidifying agent 31, and the dehumidified air is discharged into the fiber layer 13 again through the gas passage 29 on the lower side and the suction pump 28, so that the fiber layer 13 can be protected from moisture.
The following describes in detail the use steps of a power distribution cabinet for field use with reference to fig. 1 to 5:
at the beginning, the housing 14 keeps a vertical state, the stay wire 46 tensions the fusible link 49 at the moment, the sliding baffle 42 is completely accommodated in the spring groove 45 at the moment, the compression spring 43 is in a compression state at the moment, the fixture block 40 is clamped into the clamping groove 41 at the moment, the sliding conductive block 37 is connected with the fixed conductive block 38 at the moment, and the arc-shaped bottom plate 11, the housing 14 and the rain baffle 15 are fixed on the telegraph pole through the fixing threaded hole 19 and the supporting threaded hole 24 by using screws at the moment.
When the electric power distribution box is used, current is output outwards from the electric power distribution box 12 through the main wire 33, the sliding conductive block 37, the fixed conductive block 38 and the output wire 32, the air pump 28 can pump air from the fiber layer 13, the air is discharged into the air storage cavity 30 through the air channel 29 on the upper side, water vapor in the air is removed through the dehumidifying agent 31, the dehumidified air is discharged into the fiber layer 13 again through the air channel 29 on the lower side and the air pump 28, the fiber layer 13 can be prevented from being affected with damp, and the rain baffle 15 can prevent rainwater from permeating into the shell 14 to affect the work of the electric power distribution box 12;
when encountering strong wind, the strong wind blows the shell 14, and then the shell 14 drives the rotating shaft 16 to rotate and twist the reset torsion spring 21, the dead area of the shell 14 and the wind is reduced at the moment, meanwhile, the shell 14 pushes the flange slide block 27 on one side to slide, and then the connecting spring 26 on one side is stretched, and the radian of the arc-shaped groove 25 can limit the maximum rotating angle of the shell 14, so that the shell 14 is prevented from dropping, and after the wind stops, the rotating shaft 16 and the shell 14 are driven to rotate reversely under the elastic action of the connecting spring 26 and the reset torsion spring 21 until the shell 14 is restored to the initial state.
When a lightning strike occurs, the current passing through the main wire 33 is suddenly increased, and then the current passing through the connecting wire 34 and the fuse 49 is increased, so that the fuse 49 is fused, at the moment, the sliding baffle 42 is pushed to slide downwards under the action of the elastic force of the spring groove 45, and then the clamping block 40 is pushed to slide leftwards, so that the sliding conductive block 37 is driven to slide leftwards and is separated from the fixed conductive block 38, at the moment, the sliding baffle 42 slides into the groove 35 and seals the groove 35, and further the distribution box 12 can be prevented from being damaged.
During maintenance, only one fusible link 49 needs to be reconnected between the connecting wires 34, the stay wire 46 is rewound on the protective adhesive layer 48, the sliding baffle 42 is pulled to rise at the moment, the fixture block 40 is pushed to be clamped into the clamping groove 41 under the elastic force of the return spring 39, and the sliding conductive block 37 is driven to slide and reconnect with the fixed conductive block 38.
The invention has the beneficial effects that: the invention is fixed on the outdoor telegraph pole through the mutually vertical screws, thereby improving the stability, avoiding electric leakage caused by rainwater infiltration or dampness, avoiding being blown down by strong wind, automatically breaking the circuit under lightning stroke, further improving the overall safety, and protecting the circuit, and having simple and convenient maintenance operation.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims (7)

1. The utility model provides a switch board is used in field, includes the shell, be equipped with block terminal, its characterized in that in the shell: a fiber layer is arranged between the distribution box and the shell;
a dehumidifying structure is arranged in the shell, and can absorb air in the fiber layer and dehumidify the air by a dehumidifying agent;
a protection circuit is arranged in the shell and can output electric energy in the distribution box;
the upper side of the shell is provided with a rain baffle, the rain baffle can be used for shielding rain for the shell, the lower end of the shell is propped against and provided with an arc-shaped bottom plate, a connecting plate is fixedly connected between the arc-shaped bottom plate and the rain baffle, and a flange structure is arranged in the arc-shaped bottom plate and can prevent the shell from rotating too much under the condition of strong wind;
the right end of the arc-shaped bottom plate is fixedly connected with a supporting rod, and a supporting threaded hole is formed in the supporting rod in a left-right through manner;
the shell right-hand member has linked firmly the rotation axis, the rotation axis rotate connect in the connecting plate, the rotation axis right side is equipped with the fixed block, be equipped with the opening torsional spring groove left in the fixed block, the rotation axis right-hand member stretches into torsional spring inslot and with the fixed block rotates to be connected, both ends have linked firmly the fixed plate around the torsional spring groove, what link up around in the fixed plate is equipped with the fixed screw hole.
2. The power distribution cabinet for field use of claim 1, wherein: and a reset torsion spring is fixedly connected between the right end of the rotating shaft and the inner wall of the right side of the torsion spring groove.
3. The power distribution cabinet for field use of claim 1, wherein: the flange structure comprises arc-shaped grooves which are symmetrically arranged in the arc-shaped bottom plate in the front-back direction and have upward openings, and flange sliding blocks are slidably arranged in the arc-shaped grooves and respectively abut against the front end and the rear end of the shell; and a connecting spring is fixedly connected between one end of the flange sliding block close to the symmetric center and the inner wall of the arc-shaped groove at one side close to the symmetric center.
4. The power distribution cabinet for field use of claim 1, wherein: the protection circuit comprises a groove which is arranged in the shell and has a rightward opening, a sliding conductive block is slidably arranged in the groove, a main wire is connected between the sliding conductive block and the distribution box, a fixed conductive block is fixedly arranged in the connecting plate, and the right end of the fixed conductive block is connected with an output wire;
a wire groove is formed in the inner wall of the upper side of the groove, two connecting wires are arranged in the wire groove and electrically connected to the main wire, and a fuse wire is electrically connected between the connecting wires;
the fuse wire is sleeved with a protective adhesive layer, a pull wire is wound on the protective adhesive layer, a spring groove is arranged in the inner wall of the lower side of the wire groove in a communicated manner, the inner wall of the lower side of the spring groove is communicated with the groove, a sliding baffle is arranged in the spring groove in a sliding manner, and one end of the pull wire is fixedly connected with the sliding baffle;
a compression spring is fixedly connected between the upper end of the sliding baffle and the inner wall of the upper side of the spring groove;
the spring groove is characterized in that a clamping groove with a leftward opening is formed in the sliding baffle, a guide sliding groove is formed in the inner wall of the left side of the spring groove in a communicated mode, a clamping block is arranged in the guide sliding groove in a sliding mode, the right end of the clamping block can slide into the clamping groove and clamp the sliding baffle, and the lower end of the clamping block is fixedly connected with the sliding conducting block.
5. The power distribution cabinet for field use of claim 4, wherein: two guide wheels are rotatably connected between the front inner wall and the rear inner wall of the wire groove, and the guide wheels can guide the pull wire.
6. The power distribution cabinet for field use of claim 4, wherein: and a return spring is fixedly connected between the left end of the clamping block and the inner wall of the left side of the guide sliding groove.
7. The power distribution cabinet for field use of claim 4, wherein: the dehumidifying structure comprises a gas storage cavity arranged in the inner wall of the upper side of the wire casing, the dehumidifying agent is arranged in the gas storage cavity, gas channels are arranged in the inner walls of the upper side and the lower side of the gas storage cavity in a communicated mode, and an air suction pump is fixedly arranged between the gas channels.
CN201911108437.6A 2019-11-13 2019-11-13 Power distribution cabinet for field Active CN110768111B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201911108437.6A CN110768111B (en) 2019-11-13 2019-11-13 Power distribution cabinet for field
JP2020066143A JP6813743B1 (en) 2019-11-13 2020-04-01 Outdoor power distribution box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911108437.6A CN110768111B (en) 2019-11-13 2019-11-13 Power distribution cabinet for field

Publications (2)

Publication Number Publication Date
CN110768111A true CN110768111A (en) 2020-02-07
CN110768111B CN110768111B (en) 2020-10-27

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CN (1) CN110768111B (en)

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