CN109412096B

CN109412096B - Electrical equipment junction box capable of preventing violent plugging

Info

Publication number: CN109412096B
Application number: CN201811647204.9A
Authority: CN
Inventors: 蒋宜霖
Original assignee: Hangzhou Feisilite Technology Co ltd
Current assignee: HANGZHOU FEISILITE TECHNOLOGY Co.,Ltd.
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2020-11-03
Anticipated expiration: 2038-12-30
Also published as: CN109412096A

Abstract

The invention discloses an anti-violent plugging electrical equipment junction box, which comprises a sealing bottom box, an opening box and a cover plate which are sequentially overlapped, wherein the upper side and the lower side of the opening box are of an opening structure, the two sides of the opening box are respectively provided with an incoming line port and outgoing line holes, the number of the outgoing line holes is set according to the actual use condition, the inner wall of the opening box in the length direction is provided with two symmetrical slide bars, and a line distribution plate which is in sliding connection with the two slide bars is arranged between the two slide bars; through setting up and opening box sliding connection's separated time board, not only made things convenient for the orderly arrangement of stranded combination pencil in the device, simultaneously through the buncher that has the flexure strip that sets up on the separated time board, through flexure strip and pencil pipe contact after the installation is accomplished, pull the messenger when taking place the violence, can insert fast in the pencil, the continuation of stopping the pencil immediately draws outward, avoid the violence to pull the damage that causes and can avoid instantaneous outage and the loss that probably brings to a certain extent when meetting the violent incident.

Description

Electrical equipment junction box capable of preventing violent plugging

Technical Field

The invention relates to the electrical engineering technology, in particular to an anti-violence plugging electrical equipment junction box.

Background

The junction box is an important tool for the circuit switching of an electrical system and electrical equipment, and is an interface device for providing convenience for wiring and line inspection.

The inside fixed a plurality of binding post that have of present terminal box, binding post use winding formula or extrusion mode mostly to carry out the fixed and connection of pencil, nevertheless no matter uses any kind of mode to connect, and the pencil front end is inevitable to expose inside copper line, and when meetting the violence and pulling the service conductor, no matter what kind of connected mode, all can lead to the condition emergence of the damage of copper line and the whole departure of pencil.

Chinese patent publication No. CN207664244U discloses "an electrical equipment connection terminal for quick plugging", which utilizes a pull rod structure to realize quick plugging and providing pressure fixed connection, but still cannot guarantee the fixing effect of a wire harness when being pulled vigorously by external force, and the safety of an electrical system cannot be effectively guaranteed.

And current terminal box adopts the concatenation mode of two casings mostly simultaneously, because the terminal box needs to be fixed after accomplishing the wiring, when carrying out later maintenance, open a shell and carry out the operator operation when maintaining and can receive the restriction, operate very inconveniently, and will wholly pull down the back and dismantle the maintenance and can cause new problem on the fixed position in later stage.

Disclosure of Invention

The invention aims to provide an anti-violence plugging electrical equipment junction box to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an electrical equipment junction box capable of preventing violent plugging comprises a sealing bottom box, an opening box and a cover plate which are sequentially overlapped, wherein the upper side and the lower side of the opening box are of an opening structure, a lead-in wire port and a lead-out wire hole are respectively arranged on the two sides of the opening box, the number of the lead-out wire holes is set according to the actual use condition, two symmetrical slide bars are arranged on the inner wall of the opening box in the length direction, a distributing plate which is connected with the two slide bars in a sliding mode is arranged between the two slide bars, an insulating rod which is arranged in parallel with the distributing plate is arranged inside the opening box, a plurality of wiring terminals are mounted on the insulating rod, a plurality of wire passing holes are formed in the distributing plate, wire bunchers which are in butt joint with the wire passing holes are arranged in each wire passing hole, the wire bunchers, the wiring terminals and the lead-out wire holes; the wiring device comprises a branching pipe which is in butt joint with the wiring hole on the branching plate, the branching pipe is provided with a branching pipe external thread, a thread sleeve which is rotatably connected with the branching pipe external thread is sleeved on the outer wall of the branching pipe, the front end of the thread sleeve is provided with a plurality of elastic sheets which are arranged along the circumferential direction of the outer wall of the thread sleeve, the front ends of the elastic sheets are inwards closed, and the front ends of the elastic sheets are provided with inwards bent inner hooks.

The wiring terminal comprises an insulating base fixedly connected with an insulating rod and a partition plate positioned above the insulating base, wherein a lead-in wire cavity for installing a lead-in wire and a lead-out wire cavity for installing a lead-out wire are respectively arranged at two sides of the partition plate, the upper part of the insulating base is a groove, a conducting strip which penetrates through the partition plate and is respectively extended into the lead-in wire cavity and the lead-out wire cavity is laid in the groove, openings are respectively arranged at one sides, far away from each other, of the lead-in wire cavity and the lead-out wire cavity, a screw hole plate is arranged at the top of the lead-in wire cavity, an extrusion screw rotatably connected with the screw hole plate is inserted in the screw hole plate, an extrusion disc is arranged at the lower end of the extrusion screw, the extrusion disc; the top of the inserting nail is positioned above the isolation plate and is provided with an elastic plate, an insulating nail which is convenient for an operator to install and operate is arranged above the elastic plate, the bottom of the elastic plate is provided with a plurality of tension springs, and the lower ends of the tension springs are fixed on the top surface of the isolation plate.

As a preferred embodiment of the present invention: the cover plate is provided with four cover plate screw holes which are distributed in a rectangular shape, the opening box is provided with a first screw hole matched with the cover plate screw holes in position, the opening box is further provided with four second screw holes penetrating through the box body of the opening box along the height direction, screws are inserted into the cover plate screw holes and the first screw holes to fix the opening box with the cover plate, and the opening box is fixed with the sealing bottom box through the second screw holes and corresponding holes in the sealing bottom box.

Compared with the prior art, the invention has the beneficial effects that: 1. the wiring board is arranged and is in sliding connection with the opening box, so that the orderly arrangement of a plurality of strands of combined wiring harnesses in the device is facilitated, meanwhile, the wiring harness device with the elastic sheet is arranged on the wiring board and is in contact with the wiring harness pipe through the elastic sheet after the wiring harness device is installed, when violence pulling occurs, the combined wiring harnesses can be quickly inserted into the wiring harness pipe, the continuous outward pulling of the wiring harnesses is stopped immediately, the damage caused by violence pulling is avoided, and the possible loss caused by instantaneous power failure can be avoided to a certain extent when a violent incident occurs;

2. the wiring terminal has an ingenious structure, the lead-in wire and the lead-out wire are separately installed, the safety in the wiring process is ensured, the installation mode is simple, and the maintenance is convenient;

3. the sealed end box, the opening box and the cover plate which are sequentially overlapped are different from the conventional terminal box double-box design, so that the opening box is convenient to completely disassemble and maintain, the cover plate is only required to be taken down during inspection, the inspection efficiency is high, the sealed end box is not required to be disassembled when the opening box is disassembled, and the positioning and the installation after the maintenance are convenient.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a plan view of the open box of the present invention.

Fig. 3 is an enlarged view of the wire harness in the present invention.

Fig. 4 is an external view of the threaded sleeve and the elastic piece of the present invention.

Fig. 5 is a sectional view showing an internal structure of the connection terminal of the present invention.

In the figure, 1-opening box, 2-sealing bottom box, 3-cover plate, 4-cover plate screw hole, 5-leading-out wire hole, 6-leading-in wire port, 7-first screw hole, 8-second screw hole, 9-sliding rod, 10-branching plate, 11-wire bundling device, 12-branching pipe, 13-thread sleeve, 14-elastic sheet, 15-internal hook, 16-branching pipe external thread, 17-insulating rod, 18-wiring terminal, 19-insulating base, 20-conducting sheet, 21-isolating plate, 22-thread plate, 23-extruding screw, 24-extruding disc, 25-leading-in wire cavity, 26-leading-out wire cavity, 27-inserting screw, 28-elastic sheet, 29-insulating screw and 30-tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, an electrical equipment junction box capable of preventing violent plugging comprises a sealing bottom box 2, an opening box 1 and a cover plate 3 which are sequentially overlapped, wherein the upper side and the lower side of the opening box 1 are of an opening structure, a lead-in wire port 6 and a lead-out wire hole 5 are respectively arranged on the two sides of the opening box 1, the number of the lead-out wire holes 5 is set according to the actual use condition, two symmetrical slide rods 9 are arranged on the inner wall of the opening box 1 in the length direction, a distributing board 10 connected with the slide rods 9 in a sliding manner is arranged between the two slide rods 9, an insulating rod 17 arranged in parallel with the distributing board 10 is arranged inside the opening box 1, a plurality of wiring terminals 18 are arranged on the insulating rod 17, a plurality of wire passing holes are arranged on the distributing board 10, wire bunchers 11 connected with the wire passing holes are arranged at each wire passing hole, the bunchers 11, the wiring, the wire bunchers 11, the wiring terminals 18 and the outgoing line holes 5 in each group are arranged on the same vertical plane, and the wire distributing plate 10 is used for distributing thick wire bundles led into the opening box 1 from the incoming line port 6 and fixing the thick wire bundles through the wire bunchers 11; the wire harness device 11 comprises a distributing pipe 12 butted with a wire passing hole on the distributing plate 10, the distributing pipe 12 is provided with a distributing pipe external thread 16, a thread sleeve 13 rotatably connected with the distributing pipe 12 through the distributing pipe external thread 16 is sleeved on the outer wall of the distributing pipe 12, the front end of the thread sleeve 13 is provided with a plurality of elastic sheets 14 arranged along the circumferential direction of the outer wall of the thread sleeve, the front ends of the elastic sheets 14 are inwards closed, and the front ends of the elastic sheets 14 are provided with inwards bent inner hooks 15; when fixing the single-strand wire harness after the wire splitting, firstly, the thread bushing 13 is rotated to enable the thread bushing 13 to slide to one side close to the wire splitting plate 10, the opening of the front end of the elastic piece 14, the inner side of which is abutted against the wire splitting pipe 12, is expanded under the extrusion action of the wire splitting pipe 12 so as to facilitate the passing of the wire harness, when the wiring harness passes through the threaded sleeve 13 which is rotated reversely, the threaded sleeve 13 slides to one side far away from the distributing board 10, the opening at the front end of the elastic sheet 14 is reduced, and the inner hook 15 is in sliding contact with the surface of the wiring harness, in the design, when the wiring harness is pulled by external force to move outwards during violent disassembly, the inner hook 15 contacting with the wire harness is further contracted inward by an external force to be inserted into the wire harness tube, thereby prevent that the pencil from continuing outwards deviating from, effectively guaranteed the security of device when using, avoid the violence to drag the damage that causes and can avoid instantaneous outage to a certain extent and the loss that probably brings when meetting the violent incident.

It should be noted that, in practical selection, the elastic sheet 14 may be a metal sheet with a certain thickness, or a material with certain elasticity and hardness, such as a plastic sheet, may also be selected, so as to sufficiently ensure the closing fixing effect after multiple opening and closing processes.

Furthermore, the wiring terminal 18 comprises an insulating base 19 fixedly connected with the insulating rod 17 and a partition plate 21 positioned above the insulating base 19, wherein two sides of the partition plate 21 are respectively provided with an incoming line cavity 25 for installing an incoming line and an outgoing line cavity 26 for installing an outgoing line, the upper part of the insulating base 19 is a groove, a conducting strip 20 which penetrates through the partition plate 21 and two ends of which respectively extend into the incoming line cavity 25 and the outgoing line cavity 26 is laid in the groove, openings are respectively arranged at the sides, far away from each other, of the incoming line cavity 25 and the outgoing line cavity 26, a screw hole plate 22 is arranged at the top of the incoming line cavity 25, an extrusion screw 23 which is rotatably connected with the screw thread is inserted in the screw hole plate 22, a squeezing disc 24 is arranged at the lower end of the extrusion screw 23, the squeezing disc 24 can be a rubber cylindrical disc, is insulated and can increase the friction force with a bare copper wire which comes out from the front end of the wiring harness, an insertion nail, in installation, most of the electric equipment connected with the outgoing line end uses a round hole copper sheet at the front end of the wiring harness, so that the fixing effect can be better ensured by adopting the plug-in nail 27, and in actual use, the plug-in nail 27 can be replaced according to the requirement, for example, an extrusion disc structure similar to that in the lead-in wire cavity 25 is adopted, and the structure is not particularly limited; the top of the plug-in nail 27 is located above the isolation board 21 and is provided with the elastic board 28, the insulating nail 29 which is convenient for an operator to perform installation operation is arranged above the elastic board 28, the bottom of the elastic board 28 is provided with the tension springs 30, the lower ends of the tension springs 30 are fixed on the top surface of the isolation board 21, the tension springs 30 are used for providing sufficient downward tension for the elastic board 28, and therefore the bottom of the plug-in nail 27 is guaranteed to be in butt joint with the inner bottom surface of the outgoing line cavity 26 in a static state, when the installation operation is performed, the process is that the insulating nail 29 is pulled upwards to drive the elastic board 28 and the plug-in nail 27 to ascend, the insulating nail 29 is loosened after a copper sheet at the front end of the outgoing line is inserted into the outgoing line cavity 26, the elastic board 28 and the plug-in nail 27 quickly descend under the action of the tension springs 30.

Example 2:

on the basis of the embodiment 1, in the installation process, the cover plate 3 can be separated from the opening box 1, and the distributing plate 10 is taken down from the sliding rod 9, so that the efficiency of distributing and fixing the wiring harness is greatly facilitated; specifically, be equipped with four apron screws 4 that are the rectangular distribution on apron 3, and be equipped with the first screw 7 that matches with apron screw 4 position on opening box 1, still be equipped with four second screws 8 that run through opening box 1 box body along the direction of height simultaneously on opening box 1, opening box 1 is through apron screw 4, the fixed of dress screw realization and apron 3 in the first screw 7, opening box 1 passes through second screw 8, the fixed of corresponding hole realization and sealed end box 2 on the sealed end box 2, this design difference conventional terminal box double box design, not only made things convenient for and dismantled opening box 1 completely and maintained the installation, only need take off apron 3 when the inspection, the inspection efficiency is high, and need not to dismantle sealed end box 2 when dismantling opening box 1, the location installation after convenient the maintenance.

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. An electric equipment junction box capable of preventing violent plugging comprises a sealing bottom box (2), an opening box (1) and a cover plate (3) which are sequentially overlapped, wherein both sides of the opening box (1) are respectively provided with an incoming line port (6) and an outgoing line hole (5), the junction box is characterized in that the inner wall of the opening box (1) in the length direction is provided with two symmetrical slide rods (9), a distributing board (10) which is in sliding connection with the two slide rods (9) is arranged between the two slide rods (9), the distributing board (10) is provided with a plurality of line passing holes, each line passing hole is provided with a wire harness (11) which is in butt joint with the line passing hole, the wire harness (11) comprises a distributing pipe (12) which is in butt joint with the line passing hole on the distributing board (10), the distributing pipe (12) is provided with external threads (16) and the outer wall of the distributing pipe (12) is sleeved with a thread sleeve (13) which is in rotary, the front end of the threaded sleeve (13) is provided with a plurality of elastic sheets (14) arranged along the circumferential direction of the outer wall of the threaded sleeve, the front ends of the elastic sheets (14) are in an inward closing shape, and the front ends of the elastic sheets (14) are provided with inward bent inner hooks (15).

2. The terminal box for electrical equipment with resistance to violent insertion and extraction of claim 1, wherein the upper and lower sides of the opening box (1) are open structures.

3. A violence-proof electrical equipment connection box according to claim 1, wherein the opening box (1) is internally provided with an insulating rod (17) arranged parallel to the distribution board (10), and the insulating rod (17) is provided with a plurality of connection terminals (18).

4. The violence-proof electrical equipment junction box according to claim 3, wherein the wire harnesses (11), the connection terminals (18) and the outgoing line holes (5) are equal in number and are grouped in a one-to-one correspondence, and the wire harnesses (11), the connection terminals (18) and the outgoing line holes (5) in each group are arranged on the same vertical plane.

5. The terminal box for electrical equipment with resistance to violent insertion and extraction of claim 4, wherein the terminal block (18) comprises an insulating base (19) fixedly connected with the insulating rod (17) and a partition plate (21) positioned above the insulating base (19), a lead-in wire cavity (25) for installing a lead-in wire and a lead-out wire cavity (26) for installing a lead-out wire are respectively arranged at two sides of the partition plate (21), the insulating base (19) is recessed at the upper part and is internally provided with a conducting strip (20) which penetrates through the partition plate (21) and has two ends respectively extending into the lead-in wire cavity (25) and the lead-out wire cavity (26), openings are respectively arranged at the sides of the lead-in wire cavity (25) and the lead-out wire cavity (26) which are far away from each other, a screw hole plate (22) is arranged at the top of the lead-in wire cavity (25) and a pressing screw (23) which is rotatably connected with the screw hole plate, the lower end of the extrusion screw (23) is provided with an extrusion disc (24), and the top of the outgoing line cavity (26) is inserted with an insertion nail (27) which is connected with the outgoing line cavity in a sliding way; the top of the inserting nail (27) is positioned above the isolation plate (21) and is provided with an elastic plate (28), an insulating nail (29) is arranged above the elastic plate (28), the bottom of the elastic plate (28) is provided with a plurality of tension springs (30), and the lower ends of the tension springs (30) are fixed on the top surface of the isolation plate (21).

6. The connector for electrical equipment of claim 5, wherein the pressing plate (24) is a rubber cylindrical plate.

7. The terminal box for electrical equipment with violence-proof plugging and unplugging function according to claim 1, 2 or 3, wherein the cover plate (3) is provided with four cover plate screw holes (4) which are distributed in a rectangular shape, the opening box (1) is provided with a first screw hole (7) which is matched with the cover plate screw holes (4) in position, the opening box (1) is further provided with four second screw holes (8) which penetrate through the box body of the opening box (1) along the height direction, the opening box (1) is fixed with the cover plate (3) through the cover plate screw holes (4) and the first screw holes (7) by inserting screws, and the opening box (1) is fixed with the sealing bottom box (2) through the second screw holes (8) and corresponding holes in the sealing bottom box (2).