CN113644607A

CN113644607A - Cable connection box for power supply cable

Info

Publication number: CN113644607A
Application number: CN202111210682.5A
Authority: CN
Inventors: 王成伟; 王东阳; 王新峰
Original assignee: Xuzhou Hualong Thermal Power Co ltd
Current assignee: Xuzhou Hualong Thermal Power Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2021-11-12
Anticipated expiration: 2041-10-18
Also published as: CN113644607B

Abstract

The invention relates to the technical field of cable connection boxes, in particular to a cable connection box for a power supply cable, which comprises a main body mechanism, wherein a limiting mechanism slides on the main body mechanism; the main body mechanism is matched with and rotates with a driving mechanism; the driving mechanism is fixedly provided with a linkage mechanism; the driving mechanism is connected with a collision mechanism; the abutting mechanism is provided with a cleaning mechanism in a matching way; before the interior of the connecting box is overhauled, the limiting mechanism is stirred by hands, so that the limiting mechanism slides out of the main body mechanism when sliding, the connecting box is convenient to open, and meanwhile, the interior of the connecting box is convenient to seal to prevent the interior of the connecting box from being affected with damp; when opening the connecting box, operating personnel can rotate actuating mechanism with the hand, and then make actuating mechanism drive the link gear and rotate, and then make conflict mechanism follow the inside roll-off of main part mechanism and conflict to the chamber door of connecting box to be favorable to preventing that operating personnel from pounding operating personnel's the condition when the chamber door rotates down when the maintenance process.

Description

Cable connection box for power supply cable

Technical Field

The invention relates to the technical field of cable connection boxes, in particular to a cable connection box for a power supply cable.

Background

The cable junction box is a device for branching, connecting and converting the cable line, and is mostly used outdoors. In an electric power system, field test work, such as alternating current withstand voltage test of a circuit breaker, impedance test of a grounding grid and the like, is often required for large-scale electric power equipment, a large-capacity power supply is often required for the large-scale high-voltage test, some test power supplies even need hundreds of kilovolt-volt-ampere directions to meet requirements, and at the moment, a cable capable of bearing the power supply connection task is limited by current carrying capacity, and the cable with a large cross section area is required to be used to meet the current requirement in the test.

However, in the use process of the cable junction box, some junction boxes are arranged outdoors, and when the cable junction box encounters flood or rain and snow environments, potential safety hazards easily exist when the interior of the junction box is affected with damp due to poor sealing effect of the junction box and the box door; in addition, when overhauing cable conductor inside or connecting or demolising the cable, because the chamber door makes a round trip to rotate for a long time and can lead to inside subassembly not hard up, and then probably rotate to get off and injure operating personnel overhauing in the maintenance in-process to also do not benefit to when having certain potential safety hazard and improve operating personnel's maintenance efficiency.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a cable connecting box for a power supply cable.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cable connecting box for a power supply cable comprises a main body mechanism, wherein a limiting mechanism is arranged on the main body mechanism in a sliding manner; the main body mechanism is matched with and rotates with a driving mechanism; the driving mechanism is fixedly provided with a linkage mechanism; the driving mechanism is connected with a collision mechanism; the abutting mechanism is provided with a cleaning mechanism in a matching way;

the collision mechanism comprises a sliding plate, a resisting block is fixedly connected to the sliding plate, a rubber pad is bonded to the resisting block, the cross sections of the resisting block and the rubber pad are both of inclined surface structures, and the sliding plate is in rolling connection with the roller.

Specifically, the main part mechanism includes the box, the symmetry cooperation rotates on the box has the case lid, it has the warning strip to bond on the case lid, fixedly connected with fixture block on the case lid, fixed mounting has the dust screen on the box, fixedly connected with bottom plate on the box, the cooperation slides in the box has the slide, be equipped with the dead slot in the box, the dead slot fit slides has to piece and rubber pad, the cooperation rotates in the box has the gyro wheel, and two the gyro wheel is the symmetry setting.

Specifically, stop gear includes the cardboard, the symmetry slides on the box has the cardboard, be equipped with the spout on the box, the spout fit in slides there is the cardboard, the cardboard passes through expanding spring and is connected with the box cooperation, fixed mounting has the connecting rod on the cardboard, fixedly connected with lug on the connecting rod, the block is connected between lug and the fixture block, fixed mounting has the slide bar on the box, cardboard and expanding spring have been cup jointed on the slide bar, the cardboard fit in rotates there is the ball, just roll connection between ball and the slide bar.

Specifically, actuating mechanism includes the handle, it is connected with the handle to rotate on the box, fixedly connected with pivot on hand, fixedly connected with second conical tooth in the pivot, the meshing has first conical tooth on the second conical tooth, the first screw rod of fixedly connected with on the first conical tooth, rotate between first screw rod and the box and be connected, threaded connection has the slide on the first screw rod, the slide is L shape structure.

Specifically, the link gear includes the second screw rod, it is connected with the second screw rod to rotate on the box, be equipped with the rotation groove in the box, it has the leading wheel, two to rotate inslot cooperation rotation the leading wheel respectively with first screw rod and second screw rod between fixed connection, and two all twine the belt on the leading wheel.

Specifically, clearance mechanism includes the fixed plate, the fixed plate is installed in the cooperation on the slide, fixedly connected with extrusion piece on the fixed plate, it has the connecting block to contradict on the extrusion piece, the gasbag is installed to the box fit in, symmetry fixed mounting has the connecting block on the gasbag, fixed mounting has pipe and shower nozzle on the box, just the shower nozzle passes through pipe and gasbag intercommunication, the pressure spring is installed, two to the gasbag fit in the pressure spring is the symmetry setting, shower nozzle and box intercommunication.

The invention has the beneficial effects that:

(1) according to the cable connecting box for the power supply cable, before the inside of the cable connecting box needs to be overhauled and assembled, an operator can firstly stir the limiting mechanism by hand, so that the limiting mechanism slides out of the inside of the main body mechanism when sliding, the operator can conveniently and quickly open the connecting box, and meanwhile, the inside of the connecting box is conveniently sealed to prevent the inside of the connecting box from being affected with damp, namely: operating personnel is when needs are overhauld or are assembled connecting box inside, can stir two cardboards with the hand earlier, and then make the cardboard can drive inside pivoted ball when the spout is inside to slide and slide along the slide bar, the cardboard can make the expanding spring that cup joints on the slide bar tensile when sliding, and then be convenient for make the cardboard drive the connecting rod and slide, and then make the connecting rod drive the lug can follow the inside slip of fixture block when sliding, thereby be convenient for operating personnel also can be convenient when carrying on spacingly to the case lid open the case lid, be favorable to improving the sealed effect of connecting box to a certain extent.

(2) According to the cable connecting box for the power supply cable, when the connecting box is opened, an operator can rotate the driving mechanism by hand, so that the driving mechanism drives the linkage mechanism to rotate, and the collision mechanism slides out of the main body mechanism and collides the box door of the connecting box, so that the condition that the operator is hit when the box door rotates in the maintenance process is favorably prevented, namely: after the box cover is rotated and opened, an operator can rotate the handle by hand, the handle drives the rotating shaft to rotate when rotating, so that the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the first screw to rotate, because the first screw rod is fixedly provided with one guide wheel, when the guide wheel rotates, the belt can be driven to rotate, and then the other guide wheel drives the second screw rod to rotate at the position of the rotating groove, because the first screw rod and the second screw rod are both in threaded connection with the sliding plate, when the first screw rod and the second screw rod rotate, the sliding plate can slide in the box body, the sliding plate slides to drive the abutting block and the rubber pad to slide in the hollow groove part, the abutting block abuts against the box cover when sliding and enables the box cover to rotate, and then can prevent that operating personnel from rotating the in-process case lid that gets off at the maintenance junction box internal component when being convenient for carry on spacingly to the case lid and being injured by a crashing object the condition.

(3) According to the cable connection box for the power supply cable, the abutting mechanism drives the cleaning mechanism to slide when sliding, so that gas in the cleaning mechanism is discharged to the position, close to the driving mechanism, of the main mechanism when the cleaning mechanism is extruded, dust in the main mechanism can be cleaned conveniently, and meanwhile, the dust can be prevented from entering internal components of the driving mechanism, namely: the fixed plate is installed in the cooperation on the slide, the fixed plate slides along with the slide, and then the extrusion piece of fixing on the messenger fixed plate is contradicted to fixed connecting block on the gasbag when sliding, and then the pressure spring compression when making the gasbag receive the extrusion, and then make the inside gas of gasbag pass through the pipe row to the shower nozzle, and then make gaseous can clear up the inside dust of box after the shower nozzle position is discharged, thereby be favorable to preventing that the dust from entering into first awl tooth and the inside normal pivoted condition that influences of second awl tooth.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of a cable connection box for a power supply cable according to the present invention;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the case body and the case cover according to the present invention;

FIG. 4 is an enlarged view of the structure of the portion B shown in FIG. 3;

FIG. 5 is a schematic view of a connection structure of the case and the bottom plate according to the present invention;

FIG. 6 is an enlarged view of the structure of the portion C shown in FIG. 5;

FIG. 7 is an enlarged view of the structure of the portion D shown in FIG. 5;

FIG. 8 is an enlarged view of the structure of the section E shown in FIG. 5;

FIG. 9 is a schematic view of the connection structure of the handle and the case of the present invention;

fig. 10 is an enlarged view of the structure of the portion F shown in fig. 9.

In the figure: 1. a main body mechanism; 101. a box body; 102. a box cover; 103. a warning strip; 104. a clamping block; 105. a dust screen; 106. a base plate; 2. a limiting mechanism; 201. clamping a plate; 202. a chute; 203. a ball bearing; 204. a tension spring; 205. a slide bar; 206. a connecting rod; 207. a bump; 3. a drive mechanism; 301. a handle; 302. a first bevel gear; 303. a first screw; 304. a second taper tooth; 305. a rotating shaft; 4. a linkage mechanism; 401. a rotating groove; 402. a guide wheel; 403. a belt; 404. a second screw; 5. a collision mechanism; 501. a slide plate; 502. a roller; 503. a resisting block; 504. a rubber pad; 505. an empty groove; 6. a cleaning mechanism; 601. a fixing plate; 602. extruding the block; 603. an air bag; 604. a pressure spring; 605. connecting blocks; 606. a conduit; 607. and (4) a spray head.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-10, the cable connection box for power supply cables according to the present invention includes a main body mechanism 1, wherein a limiting mechanism 2 slides on the main body mechanism 1; the main body mechanism 1 is matched with and rotates with a driving mechanism 3; the driving mechanism 3 is fixedly provided with a linkage mechanism 4; the driving mechanism 3 is connected with a collision mechanism 5; the abutting mechanism 5 is provided with a cleaning mechanism 6 in a matching way;

the collision mechanism 5 comprises a sliding plate 501, a resisting block 503 is fixedly connected to the sliding plate 501, a rubber pad 504 is bonded to the resisting block 503, the cross sections of the resisting block 503 and the rubber pad 504 are both in an inclined plane structure, and the sliding plate 501 is in rolling connection with the roller 502.

Specifically, main body mechanism 1 includes box 101, the symmetry cooperation rotates on box 101 has case lid 102, warning strip 103 has bonded on the case lid 102, fixedly connected with fixture block 104 on case lid 102, fixedly connected with bottom plate 106 on the box 101, the box 101 fit slides has slide plate 501, be equipped with dead slot 505 in the box 101, dead slot 505 fit slides has support piece 503 and rubber pad 504, the box 101 fit rotates has gyro wheel 502, and two gyro wheel 502 is the symmetry setting.

Specifically, the limiting mechanism 2 comprises a clamping plate 201, the clamping plate 201 slides symmetrically on the box body 101, a sliding groove 202 is arranged on the box body 101, the clamping plate 201 slides in the sliding groove 202 in a matching manner, the clamping plate 201 is connected with the box body 101 in a matching manner through a telescopic spring 204, a connecting rod 206 is fixedly arranged on the clamping plate 201, a bump 207 is fixedly connected on the connecting rod 206, the bump 207 is connected with a clamping block 104 in a clamping manner, a sliding rod 205 is fixedly arranged on the box body 101, the clamping plate 201 and the telescopic spring 204 are sleeved on the sliding rod 205, a ball 203 rotates in the clamping plate 201 in a matching manner, the ball 203 is connected with the sliding rod 205 in a rolling manner, an operator can firstly stir the limiting mechanism 2 with hands before the interior of the cable junction box needs to be overhauled and assembled, the limiting mechanism 2 slides out of the interior of the main body mechanism 1 when sliding, and then the operator can open the junction box quickly, also be convenient for simultaneously seal the inside of connecting box and prevent its inside moisture, promptly: operating personnel is when needing to overhaul or assemble inside the connecting box, can stir two cardboard 201 with the hand earlier, and then make cardboard 201 can drive inside pivoted ball 203 and slide along slide bar 205 when spout 202 is inside to slide, cardboard 201 can make the expanding spring 204 that cup joints on the slide bar 205 tensile when sliding, and then be convenient for make cardboard 201 drive connecting rod 206 slide, and then make connecting rod 206 drive lug 207 can follow the inside roll-off of fixture block 104 when sliding, thereby be convenient for operating personnel also can be convenient when carrying on spacingly to case lid 102 open case lid 102, be favorable to improving the sealed effect of connecting box to a certain extent.

Specifically, actuating mechanism 3 includes handle 301, it is connected with handle 301 to rotate on the box 101, fixedly connected with pivot 305 on the handle 301, fixedly connected with second cone tooth 304 on the pivot 305, the meshing has first cone tooth 302 on the second cone tooth 304, first screw rod 303 of fixedly connected with on the first cone tooth 302, rotate between first screw rod 303 and the box 101 and be connected, threaded connection has slide 501 on the first screw rod 303, slide 501 is L shape structure.

Specifically, link gear 4 includes second screw rod 404, it is connected with second screw rod 404 to rotate on the box 101, be equipped with in the box 101 and rotate groove 401, it has leading wheel 402 to rotate the inslot cooperation of rotation groove 401, two leading wheel 402 respectively with first screw rod 303 and second screw rod 404 between fixed connection, and two all the winding has belt 403 on the leading wheel 402, when opening the connecting box, operating personnel can rotate actuating mechanism 3 with the hand, and then make actuating mechanism 3 drive link gear 4 rotate, and then make conflict mechanism 5 from the inside roll-off of main part mechanism and conflict to the chamber door of connecting box to be favorable to preventing that operating personnel from pounding operating personnel's the condition when the chamber door rotates down when the maintenance process, promptly: after the box cover 102 is rotated and opened, an operator can rotate the handle 301 by hand, the handle 301 drives the rotating shaft 305 to rotate when rotating, and further the second bevel gear 304 drives the first bevel gear 302 to rotate, and further the first bevel gear 302 drives the first screw 303 to rotate, because the first screw 303 is fixedly provided with a guide wheel 402, when the guide wheel 402 rotates, the belt 403 can be driven to rotate, and further the other guide wheel 402 drives the second screw 404 to rotate at the position of the rotating groove 401, because the first screw 303 and the second screw 404 are both in threaded connection with the sliding plate 501, and further when the first screw 303 and the second screw 404 rotate, the sliding plate 501 can slide inside the box body 101, the sliding plate 501 slides to drive the abutting block 503 and the rubber pad 504 to slide at the position of the hollow groove 505, the abutting block 503 abuts against the box cover 102 and rotates the box cover 102 when sliding, and further, the box cover 102 can be prevented from rotating and being injured when being convenient to limit the box cover 102, the operator can also be prevented from rotating in the process of overhauling the internal components of the connecting box The situation is.

Specifically, the cleaning mechanism 6 includes a fixing plate 601, the fixing plate 601 is installed on the sliding plate 501 in a matching manner, an extrusion block 602 is fixedly connected to the fixing plate 601, a connection block 605 is abutted to the extrusion block 602, an air bag 603 is installed in the box body 101 in a matching manner, the connection block 605 is symmetrically and fixedly installed on the air bag 603, a guide tube 606 and a nozzle 607 are fixedly installed on the box body 101, the nozzle 607 is communicated with the air bag 603 through the guide tube 606, a compression spring 604 is installed in the air bag 603 in a matching manner, the two compression springs 604 are symmetrically arranged, the nozzle 607 is communicated with the box body 101, the abutting mechanism 5 drives the cleaning mechanism 6 to slide when sliding, so that the gas inside the cleaning mechanism 6 is discharged to the position of the main mechanism 1 close to the driving mechanism 3 when being extruded, thereby being convenient for cleaning the dust inside the main mechanism 1 and preventing the dust from entering the internal components of the driving mechanism 3, namely: the fixed plate 601 is installed in the cooperation on slide 501, fixed plate 601 slides along with slide 501, and then make fixed extrusion piece 602 on fixed plate 601 contradict fixed connecting block 605 on gasbag 603 when sliding, and then make gasbag 603 receive the compression of pressure spring 604 when extrudeing, and then make the inside gas of gasbag 603 discharge to shower nozzle 607 through pipe 606, and then make gas can clear up the inside dust of box 101 after the discharge of shower nozzle 607 position, thereby be favorable to preventing that the dust from entering into the inside circumstances that influences its normal pivoted of first awl tooth 302 and second awl tooth 304.

When the connecting box is used, firstly, when an operator needs to overhaul or assemble the inside of the connecting box, the operator can firstly stir the two clamping plates 201 by hands, so that the clamping plates 201 can drive the balls 203 rotating inside to slide along the sliding rods 205 when sliding in the sliding grooves 202, the telescopic springs 204 sleeved on the sliding rods 205 can be stretched when the clamping plates 201 slide, the clamping plates 201 can drive the connecting rods 206 to slide, the connecting rods 206 can drive the lugs 207 to slide out of the clamping blocks 104 when sliding, and therefore the operator can conveniently open the box cover 102 while limiting the position of the box cover 102, and the sealing effect of the connecting box can be improved to a certain extent; after the box cover 102 is rotated and opened, an operator can rotate the handle 301 by hand, the handle 301 drives the rotating shaft 305 to rotate when rotating, and further the second bevel gear 304 drives the first bevel gear 302 to rotate, and further the first bevel gear 302 drives the first screw 303 to rotate, because the first screw 303 is fixedly provided with a guide wheel 402, when the guide wheel 402 rotates, the belt 403 can be driven to rotate, and further the other guide wheel 402 drives the second screw 404 to rotate at the position of the rotating groove 401, because the first screw 303 and the second screw 404 are both in threaded connection with the sliding plate 501, and further when the first screw 303 and the second screw 404 rotate, the sliding plate 501 can slide inside the box body 101, the sliding plate 501 slides to drive the abutting block 503 and the rubber pad 504 to slide at the position of the hollow groove 505, the abutting block 503 abuts against the box cover 102 and rotates the box cover 102 when sliding, and further, the box cover 102 can be prevented from rotating and being injured when being convenient to limit the box cover 102, the operator can also be prevented from rotating in the process of overhauling the internal components of the connecting box (ii) a condition; the fixed plate 601 is installed in the cooperation on slide 501, fixed plate 601 slides along with slide 501, and then make fixed extrusion piece 602 on fixed plate 601 contradict fixed connecting block 605 on gasbag 603 when sliding, and then make gasbag 603 receive the compression of pressure spring 604 when extrudeing, and then make the inside gas of gasbag 603 discharge to shower nozzle 607 through pipe 606, and then make gas can clear up the inside dust of box 101 after the discharge of shower nozzle 607 position, thereby be favorable to preventing that the dust from entering into the inside circumstances that influences its normal pivoted of first awl tooth 302 and second awl tooth 304.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A cable connecting box for a power supply cable is characterized by comprising a main body mechanism (1), wherein a limiting mechanism (2) is arranged on the main body mechanism (1) in a sliding manner; the main body mechanism (1) is matched with a driving mechanism (3) in a rotating way; the driving mechanism (3) is fixedly provided with a linkage mechanism (4); the driving mechanism (3) is connected with a collision mechanism (5); a cleaning mechanism (6) is arranged on the abutting mechanism (5) in a matching way;

the collision mechanism (5) comprises a sliding plate (501), a resisting block (503) is fixedly connected to the sliding plate (501), a rubber pad (504) is bonded to the resisting block (503), the cross sections of the resisting block (503) and the rubber pad (504) are both in an inclined plane structure, and the sliding plate (501) is in rolling connection with the roller (502).

2. A cable connection box for electric power supply cables according to claim 1, wherein: main part mechanism (1) includes box (101), symmetry cooperation is gone up in box (101) and is rotated case lid (102), warning strip (103) bond on case lid (102), fixedly connected with fixture block (104) on case lid (102), fixedly mounted has dust screen (105) on box (101), fixedly connected with bottom plate (106) on box (101).

3. A cable connection box for electric power supply cables according to claim 2, characterized in that: the improved structure is characterized in that a sliding plate (501) is arranged in the box body (101) in a matched and sliding mode, an empty groove (505) is formed in the box body (101), a supporting block (503) and a rubber pad (504) are arranged in the empty groove (505) in a matched and sliding mode, the box body (101) is internally matched and rotated with rollers (502), and the two rollers (502) are symmetrically arranged.

4. A cable connection box for electric power supply cables according to claim 2, characterized in that: limiting mechanism (2) include cardboard (201), the symmetry slides on box (101) has cardboard (201), be equipped with spout (202) on box (101), spout (202) fit in slides has cardboard (201), cardboard (201) are connected through expanding spring (204) and box (101) cooperation, fixed mounting has connecting rod (206) on cardboard (201), fixedly connected with lug (207) on connecting rod (206), the block is connected between lug (207) and fixture block (104).

5. A cable connection box for electric supply cables according to claim 4, characterized in that: the box body (101) is fixedly provided with a sliding rod (205), the sliding rod (205) is sleeved with a clamping plate (201) and a telescopic spring (204), the clamping plate (201) is internally matched and rotated with a ball (203), and the ball (203) is connected with the sliding rod (205) in a rolling manner.

6. A cable connection box for electric supply cables according to claim 5, characterized in that: actuating mechanism (3) include handle (301), it is connected with handle (301) to rotate on box (101), fixedly connected with pivot (305) on handle (301), fixedly connected with second taper tooth (304) on pivot (305), the meshing has first awl tooth (302) on second taper tooth (304), fixedly connected with first screw rod (303) on first awl tooth (302).

7. A cable connection box for electric power supply cables according to claim 6, wherein: the first screw rod (303) is rotatably connected with the box body (101), a sliding plate (501) is connected to the first screw rod (303) in a threaded mode, and the sliding plate (501) is of an L-shaped structure.

8. A cable connection box for electric power supply cables according to claim 2, characterized in that: link gear (4) include second screw rod (404), it is connected with second screw rod (404) to rotate on box (101), be equipped with in box (101) and rotate groove (401), it has leading wheel (402) to rotate groove (401) fit in and rotate, two leading wheel (402) respectively with first screw rod (303) and second screw rod (404) between fixed connection, and two all twine belt (403) on leading wheel (402).

9. A cable connection box for electric power supply cables according to claim 2, characterized in that: clearance mechanism (6) are including fixed plate (601), fixed plate (601) are installed in the cooperation on slide (501), fixedly connected with extrusion piece (602) are gone up in fixed plate (601), it has connecting block (605) to contradict on extrusion piece (602), gasbag (603) are installed to box (101) fit in, symmetry fixed mounting has connecting block (605) on gasbag (603), fixed mounting has pipe (606) and shower nozzle (607) on box (101), just shower nozzle (607) communicate with gasbag (603) through pipe (606).

10. A cable connection box for electric power supply cables according to claim 9, wherein: pressure springs (604) are installed in the air bag (603) in a matched mode, the two pressure springs (604) are symmetrically arranged, and the spray head (607) is communicated with the box body (101).