CN112366648A

CN112366648A - European cable branch box for power distribution network system

Info

Publication number: CN112366648A
Application number: CN202011250344.XA
Authority: CN
Inventors: 张祖生; 梁晶晶
Original assignee: Zhongze Electric Technology Co ltd
Current assignee: Zhongze Electric Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of cable branch boxes, in particular to a European-style cable branch box used in a power distribution network system, which comprises a bottom frame, a lower box and an upper box, wherein the lower box is fixedly arranged at the upper end of the bottom frame; a cable joint support is fixed on the top surface of the upper box, a cable front joint is installed on the front side of the cable joint support, and a cable rear joint is installed on the rear side of the cable joint support; the impact force of the door closing on the European cable branch box can be reduced, and no noise is generated when the door is closed; meanwhile, the functions of turning on the door opening lamp and turning off the door closing lamp are realized, and the design is more humanized.

Description

European cable branch box for power distribution network system

Technical Field

The invention relates to the technical field of cable branch boxes, in particular to a European cable branch box used in a power distribution network system.

Background

The power industry is the most important basic energy industry in the development of national economy, is also the first basic industry of the national economy, is the basic industry related to the national civilization, and is the priority development focus in economic development strategies of all countries in the world. As advanced productivity and basic industry, the power industry plays an important role in promoting the development of national economy and social progress, and has a very close relationship with social economy and social development. The method is not only a strategic problem related to national economic safety, but also closely related to the daily life and social stability of people.

The distribution network is an electric power network which receives electric energy from a transmission network or a regional power plant and distributes the electric energy to various users on site or step by step according to voltage through distribution facilities. The distribution network is directly connected with power supply users and is an important component of the power system. Particularly, rural power distribution networks are widely distributed in regions, and the types and the number of electrical equipment are numerous, so that the power distribution networks are huge information carriers, and not only are a great deal of static information such as geographic features, grid structures and the attributes of the power distribution equipment involved, but also dynamic information such as the real-time running state of a power system exists in the power distribution networks.

In a power distribution network system, the European cable branch box becomes the first choice equipment of distribution network cabling engineering by the characteristics of full insulation, full sealing and full shielding, and a simple, convenient and flexible connection mode. The device saves the investment of equipment and cables, improves the reliability of power supply, and reliably ensures the personal safety. It is widely applied to business centers, industrial parks and load-intensive areas. The bidirectional door opening device is mainly characterized in that a bidirectional door is opened, a wall bushing is used as a connecting busbar, and the bidirectional door opening device has the remarkable advantages of small size, clear cable arrangement, no need of large-span crossing of three-phase cables and the like. The utility model discloses a rain-proof European cable branch box as patent No. 201420525422.6, including the box, the both sides of box respectively are equipped with the case lid, the case lid forms with the box and articulates, be connected with the cylinder in the box, the both ends of cylinder articulate with box and case lid respectively, the inboard of case lid is equipped with the storage box, be equipped with the rain-proof cloth in the storage box, the edge of rain-proof cloth is equipped with the couple, the outward flange of case lid is equipped with the link that matches with the couple, according to above structure, can keep off the couple on the rain cloth and carry out the cooperation butt joint with the link that sets up on the case lid, realize that the rain-proof cloth will be isolated cable branch box and rainwater from eight directions on four sides, avoided because the influence that the strong wind can be stormy rain; however, the utility model still has some disadvantages: the European cable branch box has no buffer effect when the door is closed, is easy to damage the European cable branch box, seriously shortens the service life and has higher noise when the door is closed; the inside light of european style cable feeder pillar is darker, and the staff of being not convenient for overhauls.

Disclosure of Invention

The invention provides a European cable branch box for a power distribution network system, aiming at the problems in the background art.

The invention is realized by the following technical scheme:

a European cable branch box for a power distribution network system comprises a bottom frame, a lower box and an upper box, wherein the lower box is fixedly installed at the upper end of the bottom frame, heat dissipation holes are formed in the peripheral side wall of the lower box, the upper box is installed at the upper end of the lower box, a front door opening and a rear door opening are respectively formed in the front side wall and the rear side wall of the upper box, the top end of the front door opening is hinged to a front box door through a hinge, the top end of the rear door opening is hinged to a rear box door through a hinge, a pair of first air cylinders are hinged to the inner wall of the front box door and the inner wall of the upper box together, a pair of second air cylinders are hinged to the inner wall of the rear box door and the inner wall of the upper box together, and control valves for controlling the first air cylinders and the second; stepped holes are formed in the front sides of the bottom edges of the front door opening and the rear door opening, a connecting rod penetrates through the stepped holes, a buffer rubber pad is fixed at the front end of the connecting rod, a limiting sheet is fixed at the rear end of the connecting rod, a return spring is further sleeved on the outer wall of the connecting rod, and the return spring is arranged in a front round hole of the stepped hole; the top surface of going up the case is fixed with cable joint support, the front side fixed mounting of cable joint support has the cable front connector, the rear side of cable joint support installs the cable rear connector.

As a further improvement of the above scheme, annular conductive strips are bonded to the bottom edges of the front door opening and the rear door opening along the back surfaces, the annular conductive strips are arranged at the rear ends of the stepped holes, a storage battery and a pair of lamp brackets are further fixed to the top surface of the upper box, the lamp brackets are provided with lighting lamp tubes, the storage battery is sequentially connected with the two lighting lamp tubes in series, the anode of the whole series circuit is electrically connected with the annular conductive strips through leads, the cathode of the whole series circuit is electrically connected with the limiting pieces through leads, the limiting pieces are made of conductive materials, and the connecting rod is made of insulating materials.

As a further improvement of the above scheme, the inner diameter of the front round hole in the stepped hole is larger than that of the rear round hole, the inner diameter of the front round hole in the stepped hole is larger than that of the cushion rubber pad, and the diameter of the cushion rubber pad is larger than that of the connecting rod.

As a further improvement of the scheme, a drying box is fixed on the inner wall of the left side of the upper box, an insect expelling box is fixed on the inner wall of the right side of the upper box, and air holes are formed in the outer walls of the drying box and the insect expelling box.

As a further improvement of the scheme, the inner walls of the front box door and the rear box door are respectively provided with a fixed seat, and the fixed seats are provided with a plurality of tool hooks at equal intervals.

As a further improvement of the scheme, the outer walls of the front box door and the rear box door are both provided with anti-theft locks, and the bottom edges of the front door and the rear door are both provided with lock holes.

As a further improvement of the scheme, the front cable joint and the rear cable joint are connected with a cable, and the cable sequentially passes through the lower box and the underframe and is fixed by a cable fixing clamp in the underframe.

As a further improvement of the scheme, the top end of the upper box is fixedly provided with a top cover.

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

1. according to the European-style cable branch box, the front sides of the bottom edges of the door opening and the rear door opening are respectively provided with a stepped hole, the interior of each stepped hole is provided with a connecting rod in a penetrating manner, the front end of each connecting rod is fixed with a buffer rubber pad, the rear end of each connecting rod is fixed with a limiting piece, the outer wall of each connecting rod is also sleeved with a return spring, the return springs are arranged in the front round holes of the stepped holes, the buffer rubber pads can be firstly contacted when the front box door and the rear box door are closed, the return springs are continuously extruded, the buffer rubber pads and the return springs have buffering functions, so that the impact force of the door closing on the European; furthermore, annular conducting strips are bonded on the back sides of the bottom edges of the front door opening and the rear door opening, a storage battery and a pair of lamp brackets are fixed on the top surface of the upper box, lighting lamp tubes are mounted on the pair of lamp brackets, the storage battery is sequentially connected with the two lighting lamp tubes in series, the anode of the whole series circuit is electrically connected with the annular conducting strips through a lead, the cathode of the whole series circuit is electrically connected with the limiting strips through a lead, the limiting strips are made of conductive materials, when the front box door and the rear box door are closed, the return spring is in a compressed state, the annular conducting strips are separated from the limiting strips, the whole series circuit is in an open circuit state, the lighting lamp tubes cannot emit light, when the front box door and the rear box door are opened, the return spring is in a natural extension state, the annular conducting strips are in contact with the limiting strips, the whole series circuit, therefore, the maintenance and the overhaul of the working personnel are convenient, the functions of turning on the door opening lamp and turning off the door closing lamp are realized, and the design is more humanized.

2. According to the European-style cable branch box, the drying box is fixed on the inner wall of the left side of the upper box, the insect expelling box is fixed on the inner wall of the right side of the upper box, the air holes are formed in the outer walls of the drying box and the insect expelling box, the drying bag can be placed inside the drying box, the insect expelling bag can be prevented inside the insect expelling box, the drying bag can adsorb water vapor inside the European-style cable branch box, the inside of the European-style cable branch box is in a dry environment, the electric leakage accident is avoided, and the harmful insects or animals can be effectively prevented from climbing into the European-style cable branch box to bite off the circuit.

3. According to the invention, the fixed seats are arranged on the inner walls of the front box door and the rear box door, the plurality of tool hooks are arranged on the fixed seats at equal intervals, and when a worker carries out maintenance, the maintenance tool can be hung on the tool hooks, so that the worker can conveniently take and use the tool hooks, and the practicability is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic perspective view of the front door of the present invention after being closed;

FIG. 3 is a schematic view of the installation of the stepped hole and its peripheral components of the present invention;

FIG. 4 is a schematic half-section view of FIG. 3 in accordance with the present invention;

FIG. 5 is a schematic perspective view of embodiment 2 of the present invention;

FIG. 6 is a schematic view showing the installation of the stepped hole and its peripheral components in embodiment 2 of the present invention;

FIG. 7 is a schematic view in half section of FIG. 6 in accordance with the present invention;

FIG. 8 is a schematic perspective view of embodiment 3 of the present invention;

fig. 9 is a schematic structural view of the hemispherical cap and the counterweight ball in embodiment 4 of the invention.

Wherein, 1-underframe, 2-lower box, 3-upper box, 4-radiating hole, 5-front door, 6-rear door, 7-front door, 8-rear door, 9-first cylinder, 10-second cylinder, 11-control valve, 12-step hole, 13-connecting rod, 14-buffer rubber pad, 15-spacing piece, 16-reset spring, 17-cable joint bracket, 18-cable front joint, 19-cable rear joint, 20-annular conducting piece, 21-storage battery, 22-lamp holder, 23-lighting lamp tube, 24-drying box, 25-insect-expelling box, 26-fixing seat, 27-tool hook, 28-anti-theft lock, 29-locking hole, 30-cable wire and 31-top cover.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The present invention will be further described with reference to the accompanying drawings 1 to 9.

Example 1

A European cable branch box used in a power distribution network system comprises an underframe 1, a lower box 2 and an upper box 3, wherein the upper end of the underframe 1 is fixedly provided with the lower box 2, the peripheral side walls of the lower box 2 are provided with heat dissipation holes 4, the upper end of the lower box 2 is provided with the upper box 3, the front part of the upper box 3, the rear side wall is respectively provided with a front door opening 5 and a rear door opening 6, the top end of the front door opening 5 is hinged with a front door 7 through a hinge, the top end of the rear door opening 6 is hinged with a rear door 8 through a hinge, the outer walls of the front door 7 and the rear door 8 are respectively provided with an anti-theft lock 28, the bottom edges of the front door opening 5 and the rear door opening 6 are respectively provided with a lock hole 29, the inner wall of the front door 7 and the inner wall of the upper box 3 are jointly hinged with a pair of first air cylinders 9, the inner walls of the rear door 8 and the upper box 3 are jointly hinged with a pair of second air cylinders 10, and the left side wall and the right side wall of the upper box 3 are respectively provided; stepped holes 12 are formed in the front sides of the bottom edges of the front door 5 and the rear door 6, connecting rods 13 penetrate through the stepped holes 12, buffer rubber pads 14 are fixed to the front ends of the connecting rods 13, limiting pieces 15 are fixed to the rear ends of the connecting rods 13, return springs 16 are further sleeved on the outer walls of the connecting rods 13, the return springs 16 are arranged inside front round holes of the stepped holes 12, the inner diameter of the front round holes in the stepped holes 12 is larger than that of the rear round holes, the inner diameter of the front round holes in the stepped holes 12 is larger than that of the buffer rubber pads 14, and the diameter of the buffer rubber pads 14 is larger than that of the; a cable joint support 17 is fixed on the top surface of the upper box 3, a cable front joint 18 is fixedly installed on the front side of the cable joint support 17, a cable rear joint 19 is installed on the rear side of the cable joint support 17, the cable front joint 18 and the cable rear joint 19 are both connected with a cable 30, and the cable 30 sequentially passes through the lower box 2 and the underframe 1 and is fixed by a cable fixing clamp inside the underframe 1; a top cover 31 is fixedly mounted on the top end of the upper box 3.

When the European-style cable branch box is used, the European-style cable branch box is firstly fixedly installed on the ground, then the cable joint support 17, the cable front joint 18, the cable rear joint 19, the cable 30 and the like are assembled inside the European-style cable branch box, and then the European-style cable branch box is connected with an external power supply; when front box door 7 or back box door 8 were opened to needs and were overhauld, can press corresponding control valve 11, first cylinder 9 or second cylinder 10 can the circular telegram extension promptly, until complete with front box door 7 or back box door 8 jack-up, can overhaul european style cable branch incasement portion after that, after the maintenance, rethread control valve 11 makes first cylinder 9 or second cylinder 10 outage shrink, under front box door 7 or back box door 8's self weight, front box door 7 or back box door 8 can be closed.

Simultaneously, all seted up shoulder hole 12 along the front at the base of gate 5 and back gate 6, the inside of shoulder hole 12 runs through and is provided with connecting rod 13, the front end of connecting rod 13 is fixed with rubber buffer pad 14, the rear end of connecting rod 13 is fixed with spacing piece 15, the outer wall of connecting rod 13 still overlaps and is equipped with reset spring 16, reset spring 16 sets up inside the preceding round hole of shoulder hole 12, can at first contact rubber buffer pad 14 when preceding chamber door 7 and back chamber door 8 are closed, and constantly extrude reset spring 16, rubber buffer pad 14 all has the cushioning effect with reset spring 16, thereby can effectively reduce the impact force of closing the door to european style cable branch case self, can not produce the noise when closing the door simultaneously.

Example 2

Embodiment 2 is based on embodiment 1, as shown in fig. 5 to 7, annular conductive sheets 20 are bonded to the bottom edges of the front door 5 and the rear door 6 along the back surfaces, the annular conductive sheets 20 are disposed at the rear ends of the stepped holes 12, a storage battery 21 and a pair of lamp holders 22 are further fixed to the top surface of the upper box 3, the pair of lamp holders 22 are respectively provided with a lighting lamp tube 23, the storage battery 21 is sequentially connected in series with the two lighting lamp tubes 23, the positive electrode of the whole series circuit is electrically connected with the annular conductive sheets 20 through a lead, the negative electrode of the whole series circuit is electrically connected with the limiting sheet 15 through a lead, the limiting sheet 15 is made of a conductive material, and the connecting rod 13 is made of an insulating material.

This embodiment is when front door 7 and back door 8 are closed, reset spring 16 is in by compression state, separate between annular conducting strip 20 and the spacing piece 15, whole series circuit is in the state of opening a circuit, lighting tube 23 can not give out light this moment, open the back at front door 7 and back door 8, reset spring 16 is in the nature state of extending, annular conducting strip 20 and spacing piece 15 contact each other, whole series circuit is in the state of route, lighting tube 23 can give out light this moment, thereby be convenient for the staff to maintain, therefore realized that the light that opens the door is bright, the function that the light that closes the door goes out, the design is more humanized.

Example 3

Embodiment 3 on the basis of embodiment 3, as shown in fig. 8, a drying box 24 is fixed on the inner wall of the left side of the upper box 3, an insect-repelling box 25 is fixed on the inner wall of the right side of the upper box 3, and air holes are formed in the outer walls of the drying box 24 and the insect-repelling box 25.

This embodiment is in the use, and dry package can be placed to dry box 24's inside, and the inside insect repellent package that can prevent of insect repellent box 25, and dry package can adsorb the inside steam of european style cable feeder pillar for its inside dry environment that is in has avoided the occurence of failure of electric leakage, and the setting up of insect repellent package can effectively avoid harmful insect or animal to climb into the inside circuit of stinging apart of european style cable feeder pillar.

Example 4

Embodiment 4 is based on embodiment 3, as shown in fig. 9, fixing seats 26 are installed on the inner walls of the front door 7 and the rear door 8, and a plurality of tool hooks 27 are installed on the fixing seats 26 at equal intervals.

This embodiment can articulate the maintenance instrument on instrument couple 27 when the staff maintains the maintenance to be convenient for staff's taking, the practicality is strong.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a european style cable branch case for among power distribution network system, includes chassis (1), nowel (2) and last case (3), its characterized in that: the lower box (2) is fixedly arranged at the upper end of the underframe (1), radiating holes (4) are arranged on the peripheral side walls of the lower box (2), the upper box (3) is arranged at the upper end of the lower box (2), the front and rear side walls of the upper box (3) are respectively provided with a front door opening (5) and a rear door opening (6), the top end of the front door opening (5) is hinged with a front door (7) through a hinge, the top end of the rear door opening (6) is hinged with a rear door (8) through a hinge, the inner wall of the front box door (7) and the inner wall of the upper box (3) are hinged with a pair of first cylinders (9), the inner walls of the rear box door (8) and the upper box (3) are hinged with a pair of second cylinders (10), the left side wall and the right side wall of the upper box (3) are respectively provided with a control valve (11) for controlling the first cylinder (9) and the second cylinder (10) to act; stepped holes (12) are formed in the front faces of the bottom edges of the front doorway (5) and the rear doorway (6), a connecting rod (13) penetrates through the stepped holes (12), a buffer rubber pad (14) is fixed to the front end of the connecting rod (13), a limiting sheet (15) is fixed to the rear end of the connecting rod (13), a reset spring (16) is sleeved on the outer wall of the connecting rod (13), and the reset spring (16) is arranged in a front round hole of the stepped hole (12); the top surface of going up case (3) is fixed with cable joint support (17), the front side fixed mounting of cable joint support (17) has cable front connector (18), cable rear connector (19) are installed to the rear side of cable joint support (17).

2. The European cable branch box for the power distribution network system according to claim 1, wherein: preceding gate (5) and the base of back gate (6) all bond along the back and have annular conducting strip (20), annular conducting strip (20) set up in the rear end of shoulder hole (12), the top surface of going up case (3) still is fixed with battery (21) and a pair of lighting fixture (22), and is a pair of all install illumination fluorescent tube (23) on lighting fixture (22), battery (21) establish ties with two illumination fluorescent tube (23) in proper order, and whole series circuit's positive pole pass through the wire with annular conducting strip (20) electric connection, whole series circuit's negative pole pass through the wire with spacing piece (15) electric connection, spacing piece (15) adopt conducting material to make, connecting rod (13) adopt insulating material to make.

3. The European cable branch box for the power distribution network system according to claim 1, wherein: the inner diameter of a front round hole in the stepped hole (12) is larger than that of a rear round hole, the inner diameter of the front round hole in the stepped hole (12) is larger than that of the cushion rubber pad (14), and the diameter of the cushion rubber pad (14) is larger than that of the connecting rod (13).

4. The European cable branch box for the power distribution network system according to claim 1, wherein: go up the left side inner wall of case (3) and be fixed with dry box (24), the right side inner wall of going up case (3) is fixed with expelling parasite box (25), dry box (24) with the bleeder vent has all been seted up to the outer wall of expelling parasite box (25).

5. The European cable branch box for the power distribution network system according to claim 1, wherein: fixing seats (26) are installed on the inner walls of the front box door (7) and the rear box door (8), and a plurality of tool hooks (27) are installed on the fixing seats (26) at equal intervals.

6. The European cable branch box for the power distribution network system according to claim 1, wherein: the anti-theft lock is characterized in that anti-theft locks (28) are mounted on the outer walls of the front box door (7) and the rear box door (8), and lock holes (29) are formed in the bottom edges of the front door opening (5) and the rear door opening (6).

7. The European cable branch box for the power distribution network system according to claim 1, wherein: the cable front connector (18) and the cable rear connector (19) are connected with a cable (30), and the cable (30) sequentially passes through the lower box (2) and the underframe (1) and is fixed by a cable fixing clamp in the underframe (1).

8. The European cable branch box for the power distribution network system according to claim 1, wherein: and a top cover (31) is fixedly arranged at the top end of the upper box (3).