CN113346385B

CN113346385B - Distribution box

Info

Publication number: CN113346385B
Application number: CN202110825290.3A
Authority: CN
Inventors: 叶欢欢
Original assignee: Ningbo Zhonghe Technology Co ltd
Current assignee: Ningbo Zhonghe Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-04-12
Anticipated expiration: 2041-07-21
Also published as: CN113346385A

Abstract

The invention relates to a distribution box which comprises a shell, a box door, a wire mainboard, a lifting device and a pushing device, wherein the box door is hinged to the front end of the shell, the wire mainboard is arranged inside the shell, the lifting device is arranged on the outer wall of the shell, and the pushing device is arranged on the wire mainboard.

Description

Distribution box

Technical Field

The invention relates to the technical field of distribution boxes, in particular to a distribution box.

Background

The distribution box is assembled with switchgear, a measuring instrument, a protective electric appliance and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement to form a low-voltage distribution device, the distribution box can be connected or disconnected with a circuit by a manual or automatic switch in normal operation, the circuit is disconnected or alarmed by the protective electric appliance in fault or abnormal operation, the commonly used distribution box is made of wood and metal, the protection level of the metal distribution box is higher, so that the metal distribution box is more in use, but the existing distribution box can break down due to various reasons, so that no fault exists in power utilization safety and power supply, professional maintainers are required to regularly overhaul the distribution box frequently, but the maintainers often have the following problems in overhauling the distribution box:

1. in the existing distribution box, the installation height of some distribution boxes is higher, and the distribution boxes need to be overhauled at a high position by manually taking a ladder, so that an overhaul worker is easy to have an accident in the overhaul process, and the ladder is inconvenient to carry, so that the work burden of the overhaul worker is increased;

2. in the process of overhauling the distribution box by an overhauling person, because the internal space of the distribution box is limited, the operation amplitude in the overhauling process cannot be too large, the difficulty degree of the overhauling process is improved, and the overhauling efficiency is low easily.

Disclosure of Invention

In order to solve the technical problem, the invention provides a distribution box which comprises a shell, a box door, a wire main board, a lifting device and a pushing device, wherein the box door is hinged to the front end of the shell, the wire main board is arranged inside the shell, the lifting device is arranged on the outer wall of the shell, and the pushing device is arranged on the wire main board.

The lifting device comprises mounting plates, a threaded rod, a guide rod, a movable plate, a worm wheel, a worm, side plates and a rocker, wherein the mounting plates are arranged on the upper side and the lower side of the shell, the threaded rod is rotatably connected between the two mounting plates, the guide rod is arranged on the left side of the threaded rod and fixedly mounted between the two mounting plates, the outer wall of the threaded rod and the outer wall of the guide rod are respectively connected with the movable plates in a threaded fit mode and a sliding fit mode, the movable plates are vertically and symmetrically distributed and are connected with the outer wall of the shell, the worm wheel is mounted on the outer wall of the lower end of the threaded rod, the rear end of the worm wheel is meshed with the worm, the left end of the worm is rotatably connected with the square plate, the lower end of the square plate is connected with the mounting plates, the side plates are mounted at the left end and the right end of the mounting plate below the shell, the right end of the worm rotatably penetrates through the side plates and is mounted with the rocker, when the distribution box is manually overhauled, rocking rod is rocked to the artifical mode of accessible, it is that the worm is rotatory, the worm drives the worm wheel rotatory, the worm wheel drives the threaded rod and is synchronous revolution motion, under the restriction of guide bar, the threaded rod drives the fly leaf and is the down motion, the fly leaf drives the shell and is synchronous down motion, move to the height that the staff of being convenient for overhauld until this block terminal to can avoid taking the ladder to overhaul the operation because of the block terminal mounting height is higher, make the dangerous higher condition of maintenance process.

The push-out device comprises transverse bars, supporting rods, rectangular plates, pull rods, sliding grooves, vertical rods, convex plates and convex grooves, the transverse bars are symmetrically arranged at the upper end and the lower end of the electric wire mainboard, the supporting rods are symmetrically arranged between the two transverse bars in a bilateral mode, the rectangular plates are arranged at the front ends of the supporting rods and are in contact with the inner wall of the shell, the pull rods are arranged at the lower ends of the rectangular plates, which are close to one end of the box door, the sliding rods are arranged at one ends of the rectangular plates, which are close to the inner wall of the shell, the sliding grooves are slidably arranged in the sliding grooves, the sliding grooves are arranged on the inner wall of the shell, the vertical rods are symmetrically arranged at the lower ends of the transverse bars at the lower end of the electric wire mainboard in a bilateral mode, the convex plates are slidably arranged at the front ends of the vertical rods, the convex grooves are symmetrically arranged on the inner bottom wall of the shell in a bilateral mode, when an overhaul worker lowers the distribution box from a high position to a position convenient to overhaul, the box door can be opened in a manual mode, then recycle both hands and stimulate the pull rod simultaneously, under the cooperation of slide bar and spout, the pull rod drives the slide bar and is close to the outside direction motion of shell, the slide bar drives branch and horizontal bar and is synchronous motion, the horizontal bar drives the electric wire mainboard, synchronous motion is to montant and protruding type board, thereby can make the electric wire mainboard of installing the electric wire remove to the outside of shell, it can increase maintainer's operating range to overhaul electric wire mainboard to the shell outside, make maintainer needn't be restricted in the narrow and small inner space of this block terminal when overhauing, and then further improved the convenience of overhauing this block terminal, the stability of electric wire mainboard can be guaranteed in the cooperation between protruding type board and the protruding type groove.

The first preferred technical scheme is as follows: the interior diapire of spout seted up the interior concave arc groove, the roller is installed to interior concave arc inslot internal rotation, the roller is evenly arranged backward in the past, the up end and the slide bar of roller contact, the roller can reduce the frictional force between slide bar and the spout inner wall, can make maintainer take the electric wire mainboard out from the inside of shell more easily.

The preferred technical scheme is as follows: the inner bottom wall of the shell is uniformly provided with guide rail grooves from left to right, the guide rail grooves are positioned between the two convex grooves, the inner bottom wall of the shell is contacted with a sliding plate, the lower end of the sliding plate is uniformly provided with sliding strips from left to right, the sliding strips are in sliding fit with the guide rail grooves, the upper end of the sliding plate is symmetrically provided with connecting rods which are connected with the convex plate, the upper end surface of the sliding plate is uniformly provided with a cylindrical rod from left to right, the outer wall of the cylindrical rod is sleeved with a buffer spring, the upper end of the buffer spring is connected with a cross bar at the lower end of the main wire board, the buffer spring can prevent electrical components on the main wire board from being damaged due to large impact when the distribution box accidentally drops, the sliding plate can be ensured to move by the matching between the guide rail grooves and the sliding strips, the connecting rods can ensure that the sliding plate and the convex plate synchronously move, so that the buffer spring can always keep synchronous motion with the main wire board, the buffer spring can be prevented from generating resistance in the process of pulling out the main board of the electric wire.

The preferred technical scheme is three: the electric wire mainboard comprises a shell, a rectangular strip is arranged between the inner side ends of the left end and the right end of the shell in a sliding mode, teeth are evenly arranged at the lower end of the rectangular strip, clamping plates are symmetrically arranged at the front and back of the lower end of the rectangular strip, the teeth are positioned between the two clamping plates, fixing bolts are symmetrically arranged at the left and right of the upper end of the rectangular strip, the upper ends of the fixing bolts penetrate through the inner wall of the upper end of the shell, clamping teeth matched with the teeth are evenly arranged at the upper end of a cross bar at the upper end of the electric wire mainboard, clamping grooves are symmetrically arranged at the front end and the back end of the clamping teeth, the clamping grooves are arranged on the upper end face of the cross bar and correspond to the clamping plates, when an maintainer draws the electric wire mainboard out of the shell to an opening of the shell, the fixing bolts can be loosened in a manual mode and push the fixing bolts downwards to enable the rectangular strip to drive the clamping plates to synchronously move downwards until the teeth on the rectangular strip are meshed with the clamping teeth on the cross bar, and the clamping plates are matched with the clamping grooves, the fixing bolt is locked again, so that the phenomenon that the electric wire mainboard moves backwards or shakes when an electrical element on the electric wire mainboard is overhauled by an overhaul worker can be avoided, and the smoothness of the overhaul process can be ensured.

The preferable technical scheme is four: the inside heat dissipation cavity of having seted up of rear end of shell, install the thermantidote in the heat dissipation cavity, and the front end inner wall of heat dissipation cavity has evenly seted up ventilative hole, the mounting groove has been seted up to both ends longitudinal symmetry about the shell, the one end that the mounting groove is close to the electric wire mainboard has evenly seted up the hole of airing exhaust, and the inside joint of mounting groove has the dust screen, the thermantidote can in time dispel the heat to the electrical components on the electric wire mainboard with ventilative hole cooperation, with the phenomenon of electrical components on the electric wire mainboard because of the too high emergence outage of the inside temperature of shell or getting on fire, the hole of airing exhaust can make steam can follow the inside discharge of shell, can also keep the inside environment that is in the ventilation of this block terminal that the inside air convection current of shell simultaneously, the dust screen can block a large amount of dust, thereby can avoid spilling the phenomenon of hot while of ventilating at this block terminal and take place.

The preferred technical scheme is five: the shell about both ends inner wall symmetry install the pin, the pin is located the top of spout, the preceding terminal surface of branch is seted up flutedly, the recess is located the top of rectangular plate and corresponding with the pin, the pin can form the relation of mutual joint with the recess, not only can guarantee that latch and the draw-in groove of electric wire mainboard upper end can just in time be located the rectangle strip under, can also guarantee the stability of electric wire mainboard in the maintenance process.

The preferred technical scheme is six: two the equal bilateral symmetry of preceding terminal surface of mounting panel seted up the bolt hole, and bilateral symmetry installs the baffle between two mounting panels, the rectangular channel has all been seted up to the preceding terminal surface of baffle, slidable mounting has the slider in the rectangular channel, the slider links to each other with the rear end of shell, the baffle can make the rear end outer wall of this block terminal not with wall direct contact to can avoid the block terminal to cause the phenomenon of wearing and tearing to the wall at the in-process that goes up and down, the slider can make this block terminal stability at the lift in-process stronger with the rectangular channel cooperation.

The preferred technical scheme is seven: two the curb plate one end symmetry that is close to each other install the bearing board, the through-hole has all been seted up to the up end of bearing board, fixed connection between one of them through-hole and the guide bar, normal running fit between another one through-hole and the threaded rod, the bearing board can play the effect of steady support to the block terminal that falls.

The preferred technical scheme is eight: the bottom bilateral symmetry of shell seted up the spliced eye, the upper end bilateral symmetry of the mounting panel of shell below sets up threaded hole, the position and the spliced eye one-to-one of screw hole, screw hole female connection has the telescopic link, the upper end of telescopic link is pegged graft in the spliced eye, the telescopic link can play the effect of support to the block terminal of eminence to exempt from the distribution box to fall from the eminence, the telescopic link can be convenient for dismouting fast to screw hole and spliced eye, so that can in time, take off the telescopic link fast when needs are overhauld.

The invention has the following beneficial effects:

1. the lifting device can realize manual control of lifting of the distribution box, so that the condition that the danger in the maintenance process is high due to the fact that a ladder needs to be erected manually for maintenance operation because the distribution box is high in installation height can be avoided, and the ladder does not need to be carried manually, so that the work burden of maintenance personnel is reduced;

2. the push-out device can be used for conveniently drawing out the electric wire main board from the interior of the shell in the maintenance process of a maintainer, so that the operation space of the maintainer is not limited by the internal space of the shell in the maintenance process, the distribution box can be further convenient for the maintainer to maintain, and meanwhile, the practicability of the distribution box is improved;

3. the roller shaft can reduce the friction force between the sliding rod and the inner wall of the sliding groove, so that a maintainer can more easily draw out the electric wire main board from the inside of the shell;

4. the teeth on the rectangular strip are meshed with the clamping teeth on the transverse strip, and the clamping plate and the clamping groove are matched with each other and then locked through the fixing bolt, so that the phenomenon that the electric wire main board moves backwards or shakes when an inspector overhauls electric elements on the electric wire main board can be avoided;

5. the cooling fan and the ventilation holes are matched to timely dissipate heat of the electrical elements on the electric wire mainboard, so that the phenomenon that the electrical elements on the electric wire mainboard are powered off or on fire due to too high temperature inside the shell is avoided, hot air can be discharged from the inside of the shell through the exhaust holes, meanwhile, the inside of the distribution box is in a ventilating environment due to convection of air inside and outside the shell, and the dust screen can block a large amount of dust, so that the phenomenon that the distribution box is full of dust while ventilating and spreading heat can be avoided.

Drawings

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

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 of the present invention;

FIG. 4 is a first perspective view of the housing and like structure of the present invention;

FIG. 5 is a front view of a partial structure of the housing and the like of the present invention;

FIG. 6 is a second perspective view of the housing and like structure of the present invention;

FIG. 7 is a perspective view of a partial structure of a rectangular bar or the like of the present invention;

FIG. 8 is a perspective view of a partial structure of a latch or the like of the present invention;

fig. 9 is a perspective view of a partial structure of a worm gear of the present invention.

In the figure: 1. a housing; 11. a guide rail groove; 12. a sliding plate; 13. a slide bar; 14. a connecting rod; 15. a buffer spring; 16. a rectangular strip; 17. teeth; 18. clamping a plate; 19. fixing the bolt; 1a, a latch; 1b, a clamping groove; 1c, a heat dissipation cavity; 1d, a cooling fan; 1e, ventilating holes; 1f, mounting grooves; 1g, air exhaust holes; 1h, dust screen; 1i, a gear lever; 1j, a groove; 2. a box door; 3. a wire main board; 4. a lifting device; 5. a push-out device; 40. mounting a plate; 401. bolt holes; 402. a partition plate; 403. a rectangular groove; 404. a slider; 405. a telescopic rod; 41. a threaded rod; 42. a guide bar; 43. a movable plate; 44. a worm gear; 45. a worm; 46. a side plate; 460. a support plate; 47. a rocker; 50. a horizontal bar; 51. a strut; 52. a rectangular plate; 53. a pull rod; 54. a slide bar; 55. a chute; 551. a roll shaft; 56. a vertical rod; 57. a convex plate; 58. a convex groove.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Referring to fig. 1 and 3, a distribution box comprises a shell 1, a box door 2, a wire main board 3, a lifting device 4 and a pushing device 5, wherein the box door 2 is hinged to the front end of the shell 1, the wire main board 3 is arranged inside the shell 1, the lifting device 4 is arranged on the outer wall of the shell 1, and the pushing device 5 is arranged on the wire main board 3.

Referring to fig. 3 to 8, guide rail grooves 11 are uniformly formed in the inner bottom wall of the housing 1 from left to right, a sliding plate 12 is in contact with the inner bottom wall of the housing 1, sliding bars 13 are uniformly installed on the lower end of the sliding plate 12 from left to right, the sliding bars 13 are in sliding fit with the guide rail grooves 11, connecting rods 14 are symmetrically installed at the upper end of the sliding plate 12 from left to right, the connecting rods 14 are connected with a convex plate 57, cylindrical rods are uniformly installed on the upper end surface of the sliding plate 12 from left to right, a buffer spring 15 is sleeved on the outer wall of the cylindrical rods, the upper end of the buffer spring 15 is connected with a cross bar 50 at the lower end of the main wire board 3, a rectangular bar 16 is slidably installed between the inner side ends of the left end and the right end of the housing 1, teeth 17 are uniformly installed at the lower end of the rectangular bar 16, snap plates 18 are symmetrically installed at the front and back of the lower end of the rectangular bar 16, the teeth 17 are located between the two snap plates 18, fixing bolts 19 are symmetrically installed at the upper end of the rectangular bar 16, the upper end of the fixing bolt 19 penetrates through the inner wall of the upper end of the shell 1, the upper end of a transverse bar 50 at the upper end of the electric wire main board 3 is uniformly provided with a latch 1a matched with the tooth 17, the front end and the rear end of the latch 1a are symmetrically provided with a clamping groove 1b, the clamping groove 1b is arranged on the upper end surface of the transverse bar 50 and corresponds to the clamping plate 18, the rear end of the shell 1 is internally provided with a heat dissipation cavity 1c, a cooling fan 1d is arranged in the heat dissipation cavity 1c, the front end inner wall of the heat dissipation cavity 1c is uniformly provided with a ventilation hole 1e, the left end and the right end of the shell 1 are vertically and symmetrically provided with mounting grooves 1f, one end of the mounting grooves 1f close to the electric wire main board 3 is uniformly provided with exhaust holes 1g, a dust screen 1h is clamped in the mounting grooves 1f, the inner walls of the left end and the right end of the shell 1 are symmetrically provided with a baffle rod 1i, the baffle rod 1i is positioned above the sliding groove 55, and the front end surface of the supporting rod 51 is provided with a groove 1j, the groove 1j is located above the rectangular plate 52 and corresponds to the stop lever 1i, the buffer spring 15 can prevent the electric elements on the electric wire main board 3 from being damaged due to large impact when the distribution box accidentally drops, the matching between the guide rail groove 11 and the sliding strip 13 can ensure that the sliding plate 12 can move, the connecting rod 14 can ensure that the sliding plate 12 and the convex plate 57 synchronously move, so that the buffer spring 15 can always keep synchronous motion with the electric wire main board 3, the buffer spring 15 can prevent resistance from being generated in the process of drawing out the electric wire main board 3, when a maintainer draws out the electric wire main board 3 from the inside of the shell 1 to the opening of the shell 1, the fixing bolt 19 can be loosened manually and pushes the fixing bolt 19 downwards, so that the rectangular strip 16 drives the clamping plate 18 to synchronously move downwards until the teeth 17 on the rectangular strip 16 are meshed with the clamping teeth 1a on the transverse strip 50, after the clamping plate 18 and the clamping groove 1b are matched with each other, the fixing bolt 19 is locked and fastened, so that the phenomenon that the electric wire mainboard 3 moves backwards or shakes when an overhaul person overhauls the electric elements on the electric wire mainboard 3 can be avoided, the smoothness of the overhaul process can be further ensured, the cooling fan 1d and the ventilation hole 1e are matched to timely dissipate heat of the electric elements on the electric wire mainboard 3, the phenomenon that the electric elements on the electric wire mainboard 3 are powered off or ignited due to too high temperature inside the shell 1 can be avoided, the hot air can be discharged from the inside of the shell 1 through the air exhaust hole 1g, the inside of the distribution box can be kept in a ventilating environment due to convection of the air inside and outside the shell 1, the dust screen 1h can block a large amount of dust, the phenomenon that the distribution box is full of dust when the distribution box ventilates and scatters heat can be avoided, the blocking rod 1i and the groove 1j can form a mutual clamping relationship, not only can guarantee that latch 1a and draw-in groove 1b of electric wire mainboard 3 upper end can be located rectangular strip 16 under just in time, can also guarantee the stability of electric wire mainboard 3 at the maintenance in-process.

Referring to fig. 1, 2 and 9, the lifting device 4 includes a mounting plate 40, a threaded rod 41, a guide rod 42, a movable plate 43, a worm wheel 44, a worm 45, a side plate 46 and a rocker 47, the mounting plate 40 is disposed on the upper and lower sides of the housing 1, the threaded rod 41 is rotatably connected between the two mounting plates 40, the guide rod 42 is disposed on the left side of the threaded rod 41, the guide rod 42 is fixedly mounted between the two mounting plates 40, the movable plate 43 is connected to the outer wall of the threaded rod 41 and the outer wall of the guide rod 42 through a threaded fit and a sliding fit, the movable plates 43 are symmetrically distributed up and down, the movable plates 43 are connected to the outer wall of the housing 1, the worm wheel 44 is mounted on the outer wall of the lower end of the threaded rod 41, the worm 45 is engaged with the worm 45 at the rear end of the worm wheel 44, the square plate is rotatably connected to the left end of the square plate, the lower end of the square plate is connected to the mounting plate 40, the side plate 46 is mounted on the left and right ends of the mounting plate 40 below the housing 1, the bearing plates 460 are symmetrically installed at the mutually close ends of the two side plates 46, through holes are formed in the upper end faces of the bearing plates 460, one through hole is fixedly connected with the guide rod 42, the other through hole is rotatably matched with the right end of the worm 45 between the threaded rod 41 to rotatably penetrate through the side plates 46 and be provided with a rocker 47, bolt holes 401 are symmetrically formed in the front end faces of the two mounting plates 40, a partition plate 402 is symmetrically installed between the two mounting plates 40 in a left-right mode, a rectangular groove 403 is formed in the front end face of the partition plate 402, a sliding block 404 is slidably installed in the rectangular groove 403, the sliding block 404 is connected with the rear end of the shell 1, inserting holes are symmetrically formed in the bottom end of the shell 1, threaded holes are symmetrically formed in the upper end faces of the mounting plates 40 below the shell 1, the positions of the threaded holes correspond to the inserting holes one by one to one, telescopic rods 405 are connected in the threaded holes, and the upper ends of the telescopic rods 405 are inserted in the inserting holes, when the distribution box is manually overhauled, the rocker 47 can be manually shaken, the worm 45 rotates, the worm 45 drives the worm wheel 44 to rotate, the worm wheel 44 drives the threaded rod 41 to do synchronous rotating motion, under the limiting action of the guide rod 42, the threaded rod 41 drives the movable plate 43 to do descending motion, the movable plate 43 drives the shell 1 to do synchronous descending motion until the distribution box moves to the height convenient for workers to overhaul, so that the condition that the distribution box needs to manually take a ladder for overhauling due to high installation height and the danger in the overhauling process is high can be avoided, the bolt hole 401 is convenient for fixedly connecting the mounting plate 40 and the wall through a bolt, the outer wall at the rear end of the distribution box can not be directly contacted with the wall through the partition plate 402, the phenomenon that the distribution box is abraded to the wall in the ascending and descending process can be avoided, the stability of the distribution box in the ascending and descending process can be stronger due to the matching of the sliding block 404 and the rectangular groove 403, bearing board 460 can play the effect of steady support to the block terminal that falls, and telescopic link 405 can play the effect of support to the block terminal of eminence falls from the eminence, and screw hole and spliced eye can be convenient for dismouting telescopic link 405 fast, so that can in time, take off telescopic link 405 fast when needs overhaul.

Referring to fig. 4 to 6, the pushing-out device 5 includes horizontal bars 50, support bars 51, rectangular plates 52, pull rods 53, sliding rods 54, sliding grooves 55, vertical bars 56, convex plates 57 and convex grooves 58, the horizontal bars 50 are symmetrically installed at the upper and lower ends of the electric wire main board 3, the support bars 51 are symmetrically installed between the two horizontal bars 50, the rectangular plate 52 is installed at the front end of the support bar 51, the rectangular plate 52 contacts with the inner wall of the housing 1, the pull rod 53 is installed at the lower end of one end of the rectangular plate 52 close to the box door 2, the sliding rod 54 is installed at one end of the rectangular plate 52 close to the inner wall of the housing 1, the sliding rod 54 is slidably installed in the sliding groove 55, the sliding groove 55 is opened on the inner wall of the housing 1, an inner bottom wall of the sliding groove 55 is opened with an inner concave arc groove, a roller 551 is rotatably installed in the inner concave arc groove, the roller shafts are uniformly arranged from front to back, the upper end surface of the roller shaft 551 contacts with the sliding rod 54, the vertical bars 56 are symmetrically installed at the lower end of the horizontal bar 50 at the lower end of the electric wire main board 3, the front end of the vertical rod 56 is provided with a convex plate 57, the convex plate 57 is slidably arranged in the convex groove 58, the convex groove 58 is arranged on the inner bottom wall of the shell 1 in bilateral symmetry, the guide rail groove 11 is positioned between the two convex grooves 58, when an inspector lowers the distribution box from a high position to a position convenient for inspection, the box door 2 can be opened manually, then the pull rod 53 is pulled by both hands simultaneously, under the matching of the slide rod 54 and the slide groove 55, the pull rod 53 drives the slide rod 54 to move towards the direction close to the outer part of the shell 1, the slide rod 54 drives the supporting rod 51 and the cross bar 50 to do synchronous motion, the cross bar 50 drives the wire mainboard 3, the vertical rod 56 and the convex plate 57 to do synchronous motion, so that the wire mainboard 3 provided with wires can move towards the outer part of the shell 1, the operation range of the inspector can be enlarged, and the inspector does not need to be limited by the narrow inner space of the distribution box during inspection, and then further make this block terminal can be convenient for the maintainer to overhaul, increased the practicality of this block terminal, the stability of electric wire mainboard 3 can be guaranteed in the cooperation between protruding type board 57 and protruding type groove 58, and roller 551 can reduce the frictional force between slide bar 54 and the spout 55 inner wall, can make the maintainer take electric wire mainboard 3 out from the inside of shell 1 more easily.

When the distribution box is in work, the rocker 47 can be manually rocked, the worm 45 rotates, the worm 45 drives the worm wheel 44 to rotate, the worm wheel 44 drives the threaded rod 41 to do synchronous rotating motion, under the limiting action of the guide rod 42, the threaded rod 41 drives the movable plate 43 to do descending motion, the movable plate 43 drives the shell 1 to do synchronous descending motion until the distribution box moves to the height convenient for a worker to overhaul, so that the condition that the distribution box needs to manually lap a ladder to overhaul due to high installation height can be avoided, the danger in the overhaul process is high, after the distribution box descends and is stable, the box door 2 is manually opened, then the pull rod 53 is pulled by both hands, under the matching of the slide rod 54 and the sliding groove 55, the pull rod 53 drives the slide rod 54 to move towards the direction close to the outer part of the shell 1, and the slide rod 54 drives the supporting rod 51 and the cross bar 50 to do synchronous motion, the horizontal bar 50 drives the electric wire mainboard 3, the montant 56 and the convex plate 57 are synchronous motion, thereby can make the electric wire mainboard 3 of installing the electric wire remove to the outside of shell 1, can increase maintainer's operating range, make maintainer needn't be restricted by the narrow and small inner space of this block terminal when overhauing, and then further make this block terminal can be convenient for maintainer to overhaul, the practicality of this block terminal has been increased, overhaul and finish and can rise the block terminal to original height, then install the telescopic link 405 and support the block terminal of eminence, fall from the eminence in order to avoid the distribution box, at this in-process, the roller 551 can reduce the frictional force between slide bar 54 and the spout 55 inner wall, can make maintainer take the electric wire mainboard 3 out from the inside of shell 1 more easily.

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. The utility model provides a distribution box, includes shell (1), chamber door (2), electric wire mainboard (3), elevating gear (4) and ejecting device (5), its characterized in that: the front end of the shell (1) is hinged with a box door (2), a wire main board (3) is arranged inside the shell (1), a lifting device (4) is arranged on the outer wall of the shell (1), and a push-out device (5) is arranged on the wire main board (3);

the lifting device (4) comprises mounting plates (40), threaded rods (41), guide rods (42), movable plates (43), worm wheels (44), worms (45), side plates (46) and rockers (47), wherein the mounting plates (40) are arranged on the upper side and the lower side of the shell (1), the threaded rods (41) are rotatably connected between the two mounting plates (40), the guide rods (42) are arranged on the left side of the threaded rods (41), the guide rods (42) are fixedly arranged between the two mounting plates (40), the outer walls of the threaded rods (41) are connected with the movable plates (43) in a threaded fit mode, the outer walls of the guide rods (42) are connected with the movable plates (43) in a sliding fit mode, the movable plates (43) are symmetrically distributed up and down, the movable plates (43) are connected with the outer wall of the shell (1), the worm wheels (44) are mounted on the outer wall of the lower ends of the threaded rods (41), the worms (45) are meshed with the rear ends of the worm wheels (44), the left end of the worm (45) is rotatably connected with a square plate, the lower end of the square plate is connected with the mounting plate (40), the left end and the right end of the mounting plate (40) below the shell (1) are both provided with side plates (46), and the right end of the worm (45) rotatably penetrates through the side plates (46) and is provided with a rocker (47);

the push-out device (5) comprises transverse bars (50), support rods (51), rectangular plates (52), pull rods (53), sliding rods (54), sliding grooves (55), vertical rods (56), convex plates (57) and convex grooves (58), wherein the transverse bars (50) are symmetrically arranged at the upper end and the lower end of the electric wire main board (3), the support rods (51) are symmetrically arranged between the two transverse bars (50) in a left-right mode, the rectangular plates (52) are arranged at the front ends of the support rods (51), the rectangular plates (52) are in contact with the inner wall of the shell (1), the pull rods (53) are arranged at the lower ends, close to one end of the box door (2), of the rectangular plates (52) close to the inner wall of the shell (1), the sliding rods (54) are arranged at the sliding grooves (55), the sliding grooves (55) are arranged on the inner wall of the shell (1), the vertical rods (56) are symmetrically arranged at the lower ends of the transverse bars (50) at the lower end of the electric wire main board (3), the front end of the vertical rod (56) is provided with a convex plate (57), the convex plate (57) is slidably arranged in a convex groove (58), and the convex groove (58) is arranged on the inner bottom wall of the shell (1) in a left-right symmetrical manner;

guide rail grooves (11) are uniformly formed in the inner bottom wall of the shell (1) from left to right, the guide rail grooves (11) are located between the two convex grooves (58), the inner bottom wall of the shell (1) is in contact with a sliding plate (12), sliding strips (13) are uniformly installed at the lower end of the sliding plate (12) from left to right, the sliding strips (13) are in sliding fit with the guide rail grooves (11), connecting rods (14) are symmetrically installed at the upper end of the sliding plate (12) from left to right, the connecting rods (14) are connected with the convex plates (57), cylindrical rods are uniformly installed at the upper end face of the sliding plate (12) from left to right, buffer springs (15) are sleeved on the outer walls of the cylindrical rods, and the upper ends of the buffer springs (15) are connected with transverse strips (50) at the lower end of the wire main board (3);

the utility model discloses a wire harness structure, including shell (1), sliding mounting has rectangle strip (16) between the both ends medial extremity of left and right sides, tooth (17) are evenly installed to the lower extreme of rectangle strip (16), cardboard (18) are installed to the lower extreme front and back symmetry of rectangle strip (16), tooth (17) are located between two cardboard (18), fixing bolt (19) are installed to the upper end bilateral symmetry of rectangle strip (16), the upper end inner wall of shell (1) is run through to the upper end of fixing bolt (19), the upper end of horizontal bar (50) of electric wire mainboard (3) upper end is evenly installed and is blocked tooth (1 a) with tooth (17) matched with, both ends symmetry is provided with draw-in groove (1 b) around blocked tooth (1 a), the up end of horizontal bar (50) is seted up in draw-in groove (1 b), and draw-in groove (1 b) are corresponding with cardboard (18).

2. The electrical box of claim 1, wherein: the inner bottom wall of the sliding groove (55) is provided with an inner concave arc groove, the roller shafts (551) are rotatably mounted in the inner concave arc groove, the roller shafts (551) are uniformly arranged from front to back, and the upper end face of each roller shaft (551) is in contact with the sliding rod (54).

3. The electrical box of claim 1, wherein: the rear end of shell (1) inside seted up heat dissipation cavity (1 c), install thermantidote (1 d) in heat dissipation cavity (1 c), and the front end inner wall of heat dissipation cavity (1 c) has evenly seted up ventilative hole (1 e), mounting groove (1 f) have been seted up to both ends longitudinal symmetry about shell (1), exhaust hole (1 g) have evenly been seted up to the one end that mounting groove (1 f) are close to electric wire mainboard (3), and the inside joint of mounting groove (1 f) has dust screen (1 h).

4. The electrical box of claim 1, wherein: the inner walls of the left end and the right end of the shell (1) are symmetrically provided with stop levers (1 i), the stop levers (1 i) are located above the sliding grooves (55), the front end face of the supporting rod (51) is provided with grooves (1 j), and the grooves (1 j) are located above the rectangular plate (52).

5. The electrical box of claim 1, wherein: two the equal bilateral symmetry of preceding terminal surface of mounting panel (40) seted up bolt hole (401), and bilateral symmetry installs baffle (402) between two mounting panels (40), rectangular channel (403) have all been seted up to the preceding terminal surface of baffle (402), and slidable mounting has slider (404) in rectangular channel (403), and slider (404) link to each other with the rear end of shell (1).

6. The electrical box of claim 1, wherein: two curb plate (46) one end symmetry that is close to each other install bearing board (460), the through-hole has been seted up to the up end of bearing board (460), fixed connection between one of them through-hole and guide bar (42), normal running fit between another through-hole and threaded rod (41).

7. The electrical box of claim 1, wherein: the bottom bilateral symmetry of shell (1) seted up the spliced eye, the upper end bilateral symmetry of mounting panel (40) of shell (1) below sets up threaded hole, the position and the spliced eye one-to-one of screw hole, screw hole female connection has telescopic link (405), the upper end of telescopic link (405) is pegged graft in the spliced eye.