CN112993663A

CN112993663A - But mining ann's terminal box of high-speed joint

Info

Publication number: CN112993663A
Application number: CN202110288135.2A
Authority: CN
Inventors: 朴明波; 戴庚霖; 孙宝志; 刘猛; 朴禹璇
Original assignee: Liaoning Technical University
Current assignee: Liaoning Technical University
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-06-18
Anticipated expiration: 2041-03-18
Also published as: CN112993663B

Abstract

The invention relates to a mining intrinsic safety junction box capable of being quickly connected. The quick wiring terminal strip assembly is installed in the shell assembly, and the upper cover covers the shell assembly to form a sealed cavity. The mining intrinsic safety junction box disclosed by the invention can be used for wiring intrinsic safety lines in an environment with dust and gas explosion danger under a coal mine, overcomes the defects of complex wiring and time consumption of the traditional intrinsic safety junction box, and has the characteristics of simplicity in operation and quickness in wiring.

Description

But mining ann's terminal box of high-speed joint

Technical Field

The invention belongs to the technical field of mining junction boxes, and particularly relates to a mining intrinsic safety junction box capable of being connected quickly.

Background

The underground coal mine air contains gas and coal dust, and can be ignited and burned or even explode under certain conditions, so that the underground mine circuit system has special requirements. Junction boxes of mining circuitry are generally divided into three categories: the explosion-proof junction box comprises an intrinsic safety type junction box, an explosion-proof type junction box and an explosion-proof and intrinsic safety type junction box. When the voltage is less than or equal to 60V direct current and the current is less than or equal to 1A, the intrinsic safety type junction box is often used. The intrinsically safe junction box is a junction box which meets the intrinsically safe requirement of a circuit. Intrinsically safe is an explosion-proof version of electrical equipment that limits the amount of spark or thermal energy that can be generated inside the equipment and connecting wires exposed to potentially explosive environments to a level that does not produce ignition. The intrinsic safety junction box is a cable junction box, is mainly suitable for the underground environment of a coal mine with dust and gas explosion hazards, is an intrinsic safety junction device of the underground coal mine, and is used for cable branching and connection of an underground coal mine monitoring system or a communication system. The intrinsic safety box only plays a role in signal connection in the system, and the intrinsic safety characteristic of the intrinsic safety system is not influenced, so that the intrinsic safety box does not need explosion-proof means such as shell explosion suppression and the like. The intrinsic safety junction box mainly comprises a shell, an upper cover, a sealing gasket, a binding post, a sealing rubber ring, a check ring and a compression nut, wherein the shell and the upper cover are made of engineering plastic ABS (acrylonitrile butadiene styrene) filled with a flame retardant and an antistatic agent, and the surface of the shell and the upper cover is insulated; the internal terminals are typically made of copper or iron. The cable that this ampere of box inserts all inserts through sealed rubber ring, then relies on gland nut and retaining ring crimping to seal rubber ring, guarantees cable and rubber ring in close contact with, because there is sealed the pad between upper cover and the main part, consequently, connects this ampere of box behind the cable to be encapsulated situation. The intrinsic safety box can only be used on intrinsic safety circuits with working voltage of less than 60V direct current and working voltage of less than or equal to 1 a. The wiring mode that present ann box mainly used is the terminal of screw pressing mode, and because this ann box inside general space is narrow and small, generally adopts the miner's lamp illumination during installation in the pit in addition, and its lighting condition is relatively poor, consequently, it is very inconvenient to use present ann box wiring, and wiring speed is slow, and connects the mistake easily.

Disclosure of Invention

Based on the structural defects of the existing intrinsic safety junction box, the technical problem solved by the invention is to provide the mining intrinsic safety junction box capable of being quickly connected.

In order to solve the technical problems, the invention is realized by the following technical scheme: the invention provides a mining intrinsic safety junction box capable of being quickly connected, which comprises the following parts.

And the upper cover assembly comprises an upper cover and a sealing gasket arranged below the surface of the upper cover.

The shell assembly comprises a shell, a small compression nut, a small rubber ring baffle, a small rubber ring retainer ring, a small sealing rubber ring, a middle compression nut, a middle rubber ring baffle, a middle rubber ring retainer ring, a middle sealing rubber ring, a large compression nut, a large rubber ring baffle, a large rubber ring retainer ring, a large sealing rubber ring, a shell pin, a fixing screw, a nut, a flat gasket and an elastic gasket; the small pressing nut presses the small rubber ring retaining sheet, the small rubber ring retaining ring and the small sealing rubber ring into the small wiring hole in sequence; the middle pressing nut presses the middle rubber ring retaining sheet, the middle rubber ring retaining ring and the middle sealing rubber ring into the middle wiring hole in sequence; the large compression nut presses the large rubber ring retaining sheet, the large rubber ring retaining ring and the large sealing rubber ring into the large wiring hole in sequence; the fixing screw penetrates through the shell fixing hole and the shell pin, and the fixing screw and the shell pin are installed on the shell through the nut, the flat pad and the elastic pad.

The quick wiring terminal block assembly comprises a quick wiring terminal, a guide rail baffle and a fixing screw; a plurality of quick binding post install in proper order on the guide rail, form quick binding post row group, organize quick binding post row and install on the guide rail, utilize two guide rail separation blades and set screw of placing in quick binding post row group both sides to organize quick binding post row and organize and fix on the guide rail, constitute quick binding post row subassembly.

Further, the quick terminal block assembly is mounted in the housing assembly, and the upper cover covers the housing assembly to form a sealed chamber.

Furthermore, the number of the quick connecting terminals in the quick connecting terminal bank group in the quick connecting terminal bank assembly can be increased or reduced according to actual needs.

In one embodiment of the invention, the quick terminal block assembly is installed in the housing assembly, the number of the quick terminals in the quick terminal block assembly is 14, and the upper cover covers the housing assembly to form a sealed cavity.

Therefore, the mining intrinsic safety junction box capable of being quickly connected can be used for wiring of an intrinsic safety circuit under a mine, and has the characteristics of convenience in wiring, capability of improving the wiring speed, reducing the possibility of wrong wiring and increasing or reducing the number of wiring points according to actual needs.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments, together with the accompanying drawings.

Drawings

FIG. 1 is a schematic three-component structure view of a quick-connect mining intrinsically safe junction box of a preferred embodiment of the present invention;

FIG. 2 is an assembly schematic view of a quick-connect mining intrinsically safe junction box of a preferred embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an upper cover assembly of the mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 4 is a schematic structural view of a quick connector block assembly of the mining intrinsically safe connector of the present invention;

fig. 5 is a schematic structural view of an appearance of a quick connection terminal of the quick connection terminal block assembly of the mining intrinsically safe connection box capable of quick connection according to the invention;

fig. 6 is a schematic cross-sectional view of a quick connector of the quick connector block assembly of the mining intrinsically safe connector of the present invention;

FIG. 7 is a schematic structural view of a housing assembly of the mining intrinsically safe junction box of the present invention in a quick connect configuration;

FIG. 8 is a schematic structural view of an upper cover of the mining intrinsic safety junction box capable of being quickly connected according to the present invention;

FIG. 9 is a schematic diagram of a sealing gasket structure of the mining intrinsically safe junction box capable of being rapidly connected according to the invention;

FIG. 10 is a schematic view of a terminal structure of a quick-connect mining intrinsically safe terminal block of the present invention;

FIG. 11 is a schematic cross-sectional view of a terminal of the mining intrinsically safe terminal block of the present invention with a quick connect;

FIG. 12 is a schematic view of a terminal armature structure of a mining intrinsically safe junction box of the present invention with a quick connect;

FIG. 13 is a schematic cross-sectional view of a terminal armature of the mining intrinsically safe terminal block of the present invention with a quick connect;

FIG. 14 is a top view of a terminal armature of the mining intrinsically safe terminal block of the present invention with a quick connect;

FIG. 15 is a schematic diagram of a lifting rod structure of a mining intrinsic safety junction box capable of being rapidly connected according to the present invention;

FIG. 16 is a schematic structural view of a right end sub-cover of the mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 17 is a cross-sectional view of the right end sub-cover of the mining intrinsically safe junction box of the invention with quick connection;

FIG. 18 is a structural diagram of the rapidly connectable mining intrinsic safety junction box after the lifting rod and the right end sub-cover are assembled;

FIG. 19 is a cross-sectional view of the assembled lifting rod and right end sub-cover of the mining intrinsically safe junction box of the present invention with quick connection;

FIG. 20 is a schematic structural view of a left terminal cover of the mining intrinsically safe junction box of the present invention with a quick connection;

FIG. 21 is a cross-sectional view of the left terminal cover of the mining intrinsically safe terminal block of the present invention with a quick connect;

FIG. 22 is a schematic view of a slider structure of a mining intrinsically safe junction box of the present invention with a quick connection;

FIG. 23 is a schematic view of a guide rail block sheet structure of a mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 24 is a schematic diagram of a guide rail structure of a mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 25 is a schematic structural view of a middle compression nut of the mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 26 is a schematic structural view of a middle stop of the mining intrinsically safe junction box of the invention capable of being quickly connected;

FIG. 27 is a schematic diagram of a middle spacer structure of a mining intrinsically safe junction box of the present invention with a quick connect;

FIG. 28 is a schematic structural view of a middle rubber ring of the mining intrinsically safe junction box capable of being quickly connected according to the invention;

FIG. 29 is a schematic view of a set screw structure of a mining intrinsically safe junction box of the present invention capable of quick connection;

FIG. 30 is a schematic view of a housing structure of a mining intrinsically safe junction box of the present invention with a quick connect;

FIG. 31 is a threading schematic view of a mining intrinsically safe junction box of the present invention with a quick connect;

FIG. 32 is a schematic diagram of a press line of a mining intrinsically safe junction box of the present invention with quick connection;

FIG. 33 is a diagram illustrating the completion of the wiring of the mining intrinsically safe junction box of the present invention;

in FIGS. 1-33, 100-upper cover assembly, 101-upper cover, 102-gasket, 200-quick connector bank assembly, 201-guide plate retaining screw, 202-guide plate retainer, 2021-guide groove plate, 2022-guide plate retainer hole, 203-guide rail, 2031-guide groove, 204-guide retaining screw, 210-quick connector, 211-right terminal cover, 2111-right terminal cover hole, 2112-right terminal cover beveled opening, 2113-right terminal cover shaft, 2114-right terminal cover shaft hole, 2115-right terminal cover notch, 212-terminal, 2121-terminal lower opening, 2122-terminal card slot, 2123-terminal quad opening, 2124-terminal inlet opening, 2125-terminal beveled opening, 213-left terminal cover, 2131-left terminal cover hole, 2132-left terminal cover wedge opening, 2133-left terminal cover shaft, 2134-left terminal cover shaft hole, 2135-left terminal cover notch, 214-lift bar, 2141-lift bar head, 2142-lift bar shaft, 215-slide block, 2151-slide block wedge opening, 2152-slide block upper surface, 2153-slide block guide rail foot, 216-terminal armature, 2161-armature square opening, 2162-armature letter box, 2163-armature U-shaped piece, 2164-armature pressing piece, 2165-armature limiting piece, 2166-armature gap, 300-housing component, 301-middle press nut, 302-middle blocking piece, 303-middle gasket, 304-middle rubber ring, 305-housing, 3051-middle screw hole, 3052-guide rail fixing hole, 3053-rotation shaft hole, 3054-fastening screw leaning hole, 3055-small screw hole, 3056-large screw hole, 3057-shell fixing hole, 3058-shell upper surface, 306-fastening nut, 307-fastening flat pad, 308-fastening screw, 309-rotating shaft flat pad, 310-rotating shaft elastic pad, 311-rotating shaft nut, 312-small rubber ring, 313-small gasket, 314-small baffle, 315-small compression nut, 316-large rubber ring, 317-large gasket, 318-large baffle, 319-large compression nut and 320-rotating shaft screw.

Detailed Description

Other aspects, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which form a part of this specification, and which illustrate, by way of example, the principles of the invention. In the referenced drawings, the same or similar components in different drawings are denoted by the same reference numerals.

Aiming at the defects that the existing mining intrinsic safety junction box is low in wiring speed and easy to connect wrong wires, the invention designs the mining intrinsic safety junction box capable of being quickly connected, as shown in figures 1 to 33.

The mining intrinsically safe junction box capable of being quickly connected comprises an upper cover assembly 100, a quick junction terminal block assembly 200 and a shell assembly 300, as shown in fig. 1, and an assembled mining intrinsically safe junction box is shown in fig. 2.

The upper cover assembly 100 includes an upper cover 101 and a gasket 102, as shown in fig. 3.

The quick terminal block assembly 200 includes a rail stop fixing screw 201, a rail stop 202, a rail 203, a rail fixing screw 204, and a quick terminal 210, as shown in fig. 4. The quick connection terminal comprises a right terminal cover 211, a terminal 212, a left terminal cover 213, a lifting rod 214, a sliding block 215 and a terminal armature 216, as shown in fig. 5 and 6. The guide rail baffle plate fixing screw 201 in the quick terminal block assembly 200 is an M4 × 10 countersunk head screw standard component, and the guide rail fixing screw 204 is an M5 × 12 countersunk head screw standard component.

The housing assembly 300 comprises a middle compression nut 301, a middle baffle 302, a middle gasket 303, a middle rubber ring 304, a housing 305, a fastening nut 306, a fastening flat gasket 307, a fastening screw 308, a rotating shaft flat gasket 309, a rotating shaft elastic gasket 310, a rotating shaft nut 311, a small rubber ring 312, a small gasket 313, a small baffle 314, a small compression nut 315, a large rubber ring 316, a large gasket 317, a large baffle 318, a large compression nut 319 and a rotating shaft screw 320, as shown in fig. 7. The tightening nut 306 is a nut standard component of M6, the tightening flat pad 307 is a flat pad standard component of M6, the rotating shaft flat pad 309 is a flat pad standard component of M4, the rotating shaft elastic pad 310 is an elastic pad standard component of M4, the rotating shaft nut 311 is a nut standard component of M4, and the rotating shaft screw 320 is a cross-slot screw standard component of M4 × 20.

The structure of the upper cover 101 is shown in fig. 8, and the structure of the gasket 102 is shown in fig. 9.

The gasket 102 is mounted on the lower surface of the upper cover 101 to constitute the upper cover assembly 100, as shown in fig. 3.

The terminal 212 is constructed as shown in fig. 10, and the terminal 212 is shown in cross-section in fig. 11.

The terminal armature 216 is configured as shown in fig. 12, the terminal armature 216 is shown in a cross-sectional view in fig. 13, and the terminal armature 216 is shown in a top view in fig. 14.

The two armature square ports 2161 of the terminal armature 216 are directed upward and extend from the terminal lower port 2121 of the terminal 212 until the two armature blocks 2162 of the terminal armature 216 snap into the terminal slot 2122 of the terminal 212 to secure the terminal armature 216, at which time the two armature square ports 2161 of the terminal armature 216 snap into the terminal square ports 2123 of the terminal 212. Thus, the terminal armature 216 and the terminal 212 are assembled.

The lifting rod 214 is configured as shown in fig. 15.

The right terminal cover 211 is structured as shown in fig. 16, and a sectional view of the right terminal cover 211 is shown in fig. 17.

The lift bar head 2141 of the lift bar 214 is inserted into the right sub-cover notch 2115 of the right terminal cover 211 until the lift bar shaft 2142 of the lift bar 214 is inserted into the right sub-cover shaft hole 2114 of the right terminal cover 211. Thus, the lift lever 214 and the right terminal cover 211 are assembled. Fig. 18 shows a structure view of the lift lever 214 and the right terminal cover 211 after they are assembled, and fig. 19 shows a cross-sectional view of the lift lever 214 and the right terminal cover 211 after they are assembled.

The left terminal cover 213 is constructed as shown in fig. 20, and a sectional view of the left terminal cover 213 is shown in fig. 21.

The lift bar heads 2141 of the lift bars 214 are inserted into the left terminal cover notches 2135 of the left terminal cover 213 until the lift bar shafts 2142 of the lift bars 214 are inserted into the left terminal cover shaft holes 2134 of the left terminal cover 213. Thus, the lift lever 214 and the left terminal cover 213 are assembled.

The assembled lift pins 214 and right terminal cover 211 are inserted into one side of the terminal 212 until the 4 right terminal cover wedge openings 2112 of the right terminal cover 211 and the 4 terminal wedges 2125 on the right side of the terminal 212 are snapped, and the assembled lift pins 214 and left terminal cover 213 are inserted into the other side of the terminal 212 until the 4 left terminal cover wedge openings 2132 of the left terminal cover 213 and the 4 terminal wedges 2125 on the left side of the terminal 212 are snapped. Thus, the two raising levers 214, the right terminal cover 211, the left terminal cover 213, and the terminals 212 are assembled as shown in fig. 5 and 6.

The slider 215 is constructed as shown in fig. 22.

The slider upper surface 2152 of the slider 215 is pressed against the assembled combination of the two lifting rods 214, the right terminal cover 211, the left terminal cover 213, and the terminal 212 until the 4 slider wedges 2151 of the slider 215 and the 4 terminal wedges 2125 on the underside of the terminal 212 are caught. Thus, the two lift levers 214, the right terminal cover 211, the left terminal cover 213, the terminal 212, and the slider 215 are assembled into the quick connection terminal 210, as shown in fig. 5 and 6.

One side of the quick connection terminal 210 has four holes, which are two right terminal cover holes 2111 of the right terminal cover 211 and two left terminal cover holes 2131 of the left terminal cover 213, as shown in fig. 5; the other side of the quick terminal 210 has four axes, two right terminal cover axes 2113 of the right terminal cover 211 as shown in fig. 16 and two left terminal cover axes 2133 of the left terminal cover 213 as shown in fig. 20.

The structure of the rail fence 202 is shown in fig. 23.

The structure of the guide rail 203 is shown in fig. 24.

Four holes on one side of one fast connecting terminal 210 are inserted into four shafts on one side of another fast connecting terminal 210 in sequence, a plurality of fast connecting terminals can be combined into a fast connecting terminal block, and then the sliding block guide pin 2153 of the fast connecting terminal block sequentially extends into the guide rail groove 2031 of the guide rail 203, so that the fast connecting terminal block is assembled on the guide rail 203. The guide rail groove tabs 2021 of the two guide rail blocking pieces 202 extend into the guide rail grooves 2031 from two sides of the guide rail 203, then 4 guide rail blocking piece fixing screws 201 penetrate through the guide rail blocking piece fixing holes 2022, the guide rail blocking piece fixing holes 2022 are threaded holes, the 4 guide rail blocking piece fixing screws 201 are used for fixing the guide rail blocking pieces 202 and the quick terminal block row on the guide rail 203, and in addition, the guide rail fixing screws 204 used for fixing the guide rail on the housing assembly are added to form the quick terminal assembly 200, as shown in fig. 4.

The structure of the middle compression nut 301 is shown in fig. 25, the structure of the middle baffle 302 is shown in fig. 26, the structure of the middle gasket 303 is shown in fig. 27, and the structure of the middle rubber ring 304 is shown in fig. 28.

The small compression nut 315 and the large compression nut 319 are similar to the medium compression nut 301 in structure, the small stop piece 314 and the large stop piece 318 are similar to the medium stop piece 302 in structure, the small gasket 313 and the large gasket 317 are similar to the medium gasket 303 in structure, and the small rubber ring 312 and the large rubber ring 316 are similar to the medium rubber ring 304 in structure.

The set screw 308 is configured as shown in fig. 29.

The structure of the housing 305 is shown in fig. 30.

The middle blocking piece 302, the middle gasket 303 and the middle rubber ring 304 are respectively pressed into two middle threaded holes 3051 of the shell 305 by the middle pressing nut 301 in sequence. The small blocking piece 314, the small gasket 313 and the small rubber ring 312 are pressed into the small threaded hole 3055 of the housing 305 in sequence by the small compression nut 315. The large stop piece 318, the large gasket 317 and the large rubber ring 316 are pressed into the large threaded hole 3056 of the housing 305 in sequence by the large compression nut 319. Four rotating shaft screws 320 penetrate through the rotating shaft hole 3053 of the shell 305 and the fastening hole 3081 of the fastening screw 308, and then the rotating shaft flat pad 309, the rotating shaft elastic pad 310 and the rotating shaft nut 311 are sequentially installed to fix the four rotating shaft screws 320. The set flat pad 307 and set nut 306 are then mounted on set screw 308 in turn. In this manner, the housing assembly 300 is assembled as shown.

The quick terminal assembly 200 is secured to the housing assembly 300 by securing the quick terminal assembly 200 within the rail securing holes 3052 of the housing 305 of the housing assembly 300 with two rail securing screws 204.

The assembled upper cover assembly 100 is fastened to the housing upper surface 3058 of the housing 305 in the housing assembly 300, and the upper cover assembly 100 is fixed to the housing assembly 300 by means of four set screws 308, four set flat washers 307, and four set nuts 306 in the housing assembly 300, so that a quick-connect intrinsically safe junction box for mining is assembled, as shown in fig. 1.

The wiring principle of the present invention relies on the deformation of the terminal armature 216.

As can be seen in fig. 12, the armature square port 2161 and the armature stop 2165 are integral and are not deformable.

As can be seen in fig. 13 and 14, the armature U-shaped piece 2163 and the armature pressing piece 2164 are integral, but if the armature U-shaped piece 2163 deforms, the armature pressing piece 2164 is also deformed, although an armature gap 2166 is formed between the armature U-shaped piece 2163 and the armature limiting piece 2165.

When the wiring connection device is used for wiring connection, the wiring connection principle is that the armature U-shaped piece 2163 is pressed by the lifting rod 214 to deform the armature U-shaped piece 2163, the armature U-shaped piece 2163 deforms the armature pressing piece 2164, the deformation of the armature pressing piece 2164 can cause the armature pressing piece 2164 to deform away from the armature limiting piece 2165, and an electric wire can extend into a gap between the armature pressing piece 2164 and the armature limiting piece 2165.

When the wiring terminal 21 is used for wiring, a lifting rod 214 on one side of the wiring terminal 210 is pressed, the lifting rod 214 rotates around a lifting rod shaft 2142, after the lifting rod 214 rotates, an armature U-shaped piece 2163 of a terminal armature 216 is pressed down, the armature pressing piece 2164 is far away from an armature limiting piece 2165 due to the deformation of the armature U-shaped piece 2163, an electric wire extending from a terminal wire inlet 2124 extends into a gap between the armature pressing piece 2164 and the armature limiting piece 2165, the lifting rod 214 is released, the armature U-shaped piece 2163 returns to the original position, the armature pressing piece 2164 returns to the original position, and the electric wire is pressed between the armature pressing piece 2164 and the armature limiting piece 2165.

The working principle of the mining intrinsically safe junction box capable of being quickly connected according to the invention is briefly described below with reference to fig. 1 to 33 and in combination with the description of the structural features, and is described by taking mining MKVVRP-4 × 1.5 type cables, an incoming line and an outgoing line as an example.

When the threading device is used, firstly, two middle threaded holes 3051 are determined to be used for threading, one middle threaded hole 3051 is used as an incoming line, and the other middle threaded hole 3051 is used as an outgoing line. First, the middle compression nut 301, the middle stop piece 302, the middle washer 303 and the middle rubber ring 304 are taken out of a middle threaded hole, the middle stop piece 302 is removed and is not used, and the cable 400 is sleeved in the middle compression nut, as shown in fig. 31. Then, a middle gasket 303 and a middle rubber ring 304 are pressed into the middle threaded hole by a middle pressing nut 301, and the cable is fixed by virtue of pressing force, so that the cable cannot move, as shown in fig. 32. The cables are then individually spliced into one end of the four wire terminals 210. The other cable was treated the same. The cover assembly 100 is then secured and the wiring is completed as shown in fig. 33. After the wiring is finished, the interior of the safety box is completely sealed, and external gas and dust cannot enter the safety box. The intrinsically safe cassette is then secured using four housing securing holes 3057 in the housing 305.

While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A mining intrinsically safe junction box capable of being quickly connected is characterized by comprising an upper cover assembly (100), a shell assembly (300) and a quick junction terminal block assembly (200), wherein the quick junction terminal block assembly (200) is installed in the shell assembly (300), and the upper cover assembly (100) covers the shell assembly (300) to form a sealed cavity.

2. The mining intrinsically safe quick-connect junction box of claim 1, wherein the upper cover assembly (100) comprises an upper cover (101) and a gasket (102) mounted below a surface of the upper cover.

3. The mining intrinsically safe junction box capable of being quickly connected according to claim 1, wherein the housing assembly (300) comprises a housing (305), a small compression nut (315), a small baffle (314), a small gasket (313), a small rubber ring (312), a medium compression nut (301), a medium baffle (302), a medium gasket (303), a medium rubber ring (304), a large compression nut (319), a large baffle (318), a large gasket (317), a large rubber ring (316), a rotating shaft pin (320), a rotating shaft flat gasket (309), a rotating shaft elastic gasket (310), a rotating shaft nut (311), a set screw (308), a set nut (306) and a set flat gasket (307); the small compression nut (315) presses the small blocking piece (314), the small gasket (313) and the small rubber ring (312) into the small threaded hole (3055) in sequence; the middle pressing nut (301) sequentially presses the middle blocking piece (302), the middle gasket (303) and the middle rubber ring (304) into the middle threaded hole (3051); the large compression nut (319) sequentially presses the large baffle plate (318), the large gasket (317) and the large rubber ring (316) into the large threaded hole (3026); the rotating shaft screw (320) penetrates through the rotating shaft hole (3053) and the set screw (308), and the set screw (308) is arranged on the shell by means of the rotating shaft flat pad (309), the rotating shaft elastic pad (310) and the rotating shaft nut (311).

4. The mining intrinsically safe quick-connect terminal block of claim 1, wherein the quick terminal block assembly (200) comprises a quick terminal (210), a guide rail (203), a guide rail stop (202), a guide rail stop set screw (20) 1 and a guide rail set screw (204); a plurality of quick binding post (210) are installed in proper order on guide rail (203), form quick binding post and arrange the group, utilize two guide rail separation blade (202) and guide rail set screw (204) of placing in quick binding post group both sides to arrange the group with quick binding post and fix on guide rail (203), constitute quick binding post and arrange subassembly (200).

5. A quick-connect mining intrinsically safe terminal block as claimed in claim 1, wherein the quick terminal block assembly (200) is mounted in the housing assembly (300) and the upper cover assembly (100) is snapped onto the housing assembly (300) to form the mining intrinsically safe terminal block with a sealed chamber inside.