CN107492852B

CN107492852B - Metal junction box

Info

Publication number: CN107492852B
Application number: CN201710902187.8A
Authority: CN
Inventors: 虞华春; 曾小龙; 吴开发
Original assignee: Ningbo Gmf Telecom Technology Co ltd
Current assignee: Ningbo Gmf Telecom Technology Co ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2022-09-27
Anticipated expiration: 2037-09-29
Also published as: CN107492852A

Abstract

The invention provides a metal junction box, and belongs to the technical field of STB (set top box) junction boxes. It has solved the current inconvenient installation and can not be applicable to the problem in the abominable area of environment. The invention relates to a metal junction box which comprises a base, a top cover, a guide rail, a module main body, an introducing mechanism, an extracting mechanism, a dust head module, a limiting mechanism, an introducing sealing ring, an extracting sealing ring, an unlocking mechanism, a locking mechanism and a supporting mechanism, wherein the supporting mechanism comprises a supporting column, a supporting channel is formed in the supporting column, a movable column is movably arranged in the supporting channel, a handle is detachably connected to the movable column, a baffle ring used for limiting the movable column to axially move is arranged at one end of the supporting channel, when the top cover is turned over and forms an angle of 90 degrees with the base, acting force acts on the handle to enable the movable column to axially move, and when the movable column is clamped between the top cover and the base, the top cover is not turned over any more, so that people can conveniently check and maintain the internal structure of the metal junction box.

Description

Metal junction box

Technical Field

The invention belongs to the technical field of STB (set top box) junction boxes, and relates to a metal junction box.

Background

The STB junction box is a junction box internally provided with an STB communication cable connection module and is based on the junction box between a communication cable connection box and a user side outdoor cable.

In the prior art, STB distribution boxes have the following drawbacks:

1. most of STB junction boxes installed on a circuit are STB junction boxes using plastic raw materials as base materials, and the STB junction boxes made of the plastic raw materials cannot be suitable for areas with severe environments;

2. when the STB junction box uses a thick line (with the outer diameter of 5mm) to access a junction end of a module, the acting force of people on the junction end is greater than the acting force of the module for clamping a guide rail, so that the module transversely moves relative to the guide rail, and the module falls off from the guide rail, therefore, the metal junction box is inconvenient to install by people, and the thick line accessed into the metal junction box is not stable enough;

3. most STB junction boxes do not set up the latched device who is used for locking top cap and base on the junction box, so, place and will receive the influence of natural factor at open air junction box, lead to its internal structure to damage.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a metal junction box which is simple in structure, convenient to install and suitable for areas with severe environments.

The purpose of the invention can be realized by the following technical scheme: a metal distribution enclosure comprising:

the base is movably provided with a top cover, and the base is detachably connected with a guide rail;

the module comprises a module main body, a plurality of leading-in mechanisms and leading-out mechanisms corresponding to the leading-in mechanisms are detachably connected to the module main body, ash head modules are clamped between the leading-in mechanisms and the leading-out mechanisms, and the leading-in mechanisms and the leading-out mechanisms are electrically connected through the ash head modules;

the limiting mechanism is detachably connected to the base, and one end of the limiting mechanism props against the introducing mechanism and is attached to the module main body;

the lead-in sealing ring is arranged on the base, the lead-out sealing ring is also arranged on the base, and the lead-in sealing ring and the lead-out sealing ring are both made of EVA materials;

the unlocking mechanism is movably arranged on the base, a locking mechanism corresponding to the unlocking mechanism is arranged on the top cover, and the unlocking mechanism can be buckled on the locking mechanism;

the supporting mechanism is movably arranged on the base, and when the top cover is opened, the supporting mechanism is clamped between the base and the top cover.

In an above-mentioned metal junction box, stop gear includes fixed plate and limiting plate, the fixed plate can be dismantled and connect in the base, the fixed plate is on a parallel with the limiting plate, be equipped with the connecting plate between fixed plate and the limiting plate, the fixed plate perpendicular to fixed plate.

In the above metal junction box, the introducing mechanism includes an introducing seat, the introducing seat is provided with an introducing eye and a left bolt in a penetrating manner, the left bolt is connected to the module main body in a threaded manner, and the introducing eye is communicated with the introducing seat.

In the above metal junction box, the module body includes a hook for clamping a guide rail and an introduction table for installing an introduction seat, a side surface of the limiting plate, which is far away from the connecting plate, supports against the introduction seat, and a bottom surface of the limiting plate supports against the introduction table.

In the above metal distribution box, the leading-in sealing ring and the leading-out sealing ring are both provided with a plurality of movable pieces.

In the above metal junction box, the unlocking mechanism includes a rotating rod penetrating through the base, one end of the rotating rod is provided with a handle, the other end of the rotating rod is provided with a latch, the central axis of the rotating rod is perpendicular to the latch, and the base is further internally provided with a first stop lever and a second stop lever for limiting the rotation of the rotating rod.

In foretell metal junction box, blocked mechanical system includes first jam plate and second jam plate, first jam plate can be dismantled and connect in the top cap, first jam plate is parallel with the second jam plate, set up the locked groove that corresponds the block tongue on the second jam plate, be equipped with the swash plate between first jam plate and the second jam plate, the contained angle has between first jam plate and the swash plate.

In foretell metal junction box, supporting mechanism includes the support column, set up the support passageway in the support column, the activity is equipped with movable post in the support passageway, can dismantle on the movable post and be connected with the handle, the one end of support passageway is equipped with the fender ring that is used for the movable post axial displacement of restriction, the other end of support passageway is equipped with the ring mouth.

In the above metal junction box, the lead-out mechanism includes a lead-out base, a lead-out eye is clamped on the lead-out base and a right bolt is inserted into the lead-out base, the right bolt is in threaded connection with the module main body, and the lead-out eye is communicated with the lead-out base; the module comprises a module body and is characterized in that a leading-in piece corresponding to a leading-in seat and a leading-out piece corresponding to a leading-out seat are arranged in the module body, a leading-in clamping hand is arranged on the leading-in piece, and a leading-out clamping hand is arranged on the leading-out piece.

In the above-mentioned metal junction box, the grey head module includes grey head body, be equipped with binding post in the grey head body, binding post's one end can be pegged graft and is established in introducing the tong, and binding post's the other end can be pegged graft and is established in drawing the tong, the card is equipped with grey head lid on the grey head body.

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

1. stop gear includes fixed plate and limiting plate, fixed plate threaded connection is in the base, the fixed plate is on a parallel with the limiting plate, introduce the mechanism including introducing the seat, the module main part is including the trip that is used for the card to establish the guide rail, on locating the guide rail with the module main part card, and make the guide rail be close to one side card of trip when in the trip, the guide rail has restricted the relative guide rail of module main part and has moved right, afterwards, with fixed plate threaded connection and base, and make the one end that the connecting plate was kept away from to the limiting plate support the side of introducing the seat, and its bottom surface supports and introduces the platform, so, it moves left to have restricted the module main part and correspond the guide rail, so, cooperation through guide rail and limiting plate, avoid the relative guide rail lateral shifting of module main part, make things convenient for people to the installation of metal distributing box, and ensure the stable access metal distributing box with total electric wire or user's electric wire.

2. The supporting mechanism comprises a supporting column, a supporting channel is formed in the supporting column, a movable column is arranged in the supporting channel in an activity mode, a handle is detachably connected to the movable column, one end of the supporting channel is provided with a retaining ring used for limiting the axial movement of the movable column, when people turn over the top cover, the top cover is made to be 90 degrees with the base, acting force is acted on the handle, the movable column moves along the axial direction of the movable column, and when the movable column is clamped between the top cover and the base, the top cover is not turned over any more, and therefore people can check and maintain the internal structure of the metal junction box conveniently.

3. The one end of bull stick is equipped with the handle, and the bull stick other end is equipped with the block tongue, still is equipped with in the base and is used for restricting bull stick pivoted first pin and second pin to first lock plate can be dismantled and connect in the top cap, first lock plate is parallel with the second lock plate, set up the locked groove that corresponds the block tongue on the second lock plate, when the block tongue supported first pin, the block tongue blocked into the locked groove just, thereby closed top cap, when the block tongue supported the second pin, the block tongue rotated out from the locked groove for people can easily open the top cap.

Drawings

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

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention.

Fig. 4 is a front view of fig. 3 with the stop mechanism removed.

FIG. 5 is a schematic structural view of a limiting mechanism

Fig. 6 is a schematic structural view of the support mechanism.

Figure 7 is a half-sectional view of the support post.

Fig. 8 is a schematic view of the locking mechanism.

Fig. 9 is a structural schematic view of the locking mechanism from another perspective.

Fig. 10 is an enlarged view of fig. 2 at a.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 10, a metal distribution box according to the present invention includes a base 100, a top cover 200, a guide rail 110, a module body 300, an introducing mechanism 400, an extracting mechanism 500, a gray head module 600, a limiting mechanism 700, an introducing seal ring 120, an extracting seal ring 130, an unlocking mechanism 800, a locking mechanism 210, and a supporting mechanism 900.

In the present invention, the base 100 and the top cover 200 are made of metal materials, so that the metal distribution box is suitable for areas with severe environments.

The base 100 is movably provided with a top cover 200, the base 100 is detachably connected with a guide rail 110, the guide rail 110 is provided with a module main body 300, the module main body 300 is detachably connected with a plurality of lead-in mechanisms 400 and lead-out mechanisms 500 corresponding to the lead-in mechanisms 400, a dust head module 600 is clamped between the lead-in mechanisms 400 and the lead-out mechanisms 500, the lead-in mechanisms 400 and the lead-out mechanisms 500 are electrically connected through the dust head module 600, when the base is installed, a user inserts a total wire into the lead-in mechanisms 400 and electrically connects the total wire to the lead-in mechanisms 400, then inserts a user wire into the lead-out mechanisms 500 and electrically connects the user wire to the lead-out mechanisms 500, when the user needs to obtain an electric signal from the total wire, the dust head module 600 needs to be clamped between the lead-in mechanisms 400 and the lead-out mechanisms 500, and the lead-in mechanisms 400, the dust head module 600 and the lead-out mechanisms 500 form a circuit, so that the electric signal on the total wire is transmitted to the lead-out mechanisms 500 through the dust head module 600, therefore, the electric signal is transmitted to the device used by the user, and when the user does not need to obtain the electric signal, the user only needs to pull out the gray head module 600, so that an open circuit is formed between the leading-in mechanism 400 and the leading-out mechanism 500, and the electric signal of the main electric wire is not transmitted to the leading-out mechanism 500.

Limiting mechanism 700 is detachably connected to base 100, and one end of limiting mechanism 700 supports lead-in mechanism 400 and pastes and locates module main part 300, and when people installed or inserted user's electric wire into lead-out mechanism 500 or inserted total electric wire into lead-in mechanism 400 to module main part 300, this limiting mechanism 700 has avoided the horizontal migration of module main part relative to guide rail 110, so, not only make things convenient for people to the installation of this metal junction box, also ensure the stability of this module main part 300 work.

In the present invention, the leading-in sealing ring 120 and the leading-out sealing ring 130 are both made of EVA material, and EVA material has the following characteristics:

1. the EVA material is a biodegradable material, so that when people discard or burn the damaged leading-in sealing ring 120 and leading-out sealing ring 130, the environment is not polluted, and the environment-friendly function of the invention is embodied.

2. The EVA material is light in weight, highly transparent, and compliance and toughness are good, so, make things convenient for people to install introducing sealing washer 120 and drawing out sealing washer 130 on base 100, and not fragile.

3. The EVA material has ultra-strong low temperature resistance, so that the metal junction box is suitable for areas with severe environments, such as icing environments.

4. The EVA material has stronger stability: when the leading-in sealing ring 120 and the leading-out sealing ring 130 encounter water or salt, both the leading-in sealing ring 120 and the leading-out sealing ring 130 can be kept stable and do not undergo chemical or physical changes.

The leading-in sealing ring 120 is installed on the base 100, the leading-out sealing ring 130 is further installed on the base 100, and the leading-in sealing ring 120 and the leading-out sealing ring 130 are both made of EVA materials, so that people can conveniently install the leading-in sealing ring 120 and the leading-out sealing ring 130, the metal junction box is suitable for areas with severe environments, and the metal junction box has high stability.

Furthermore, a plurality of movable pieces 140 are arranged in the leading-in sealing ring 120 and the leading-out sealing ring 130, the movable pieces 140 are also made of an EVA material, and the EVA material has high flexibility, so that people can conveniently pass the main electric wire through the leading-in sealing ring 120 and the user electric wire through the leading-out sealing ring 130, and then people can conveniently access the main electric wire into the leading-in mechanism 400 and the user electric wire into the leading-out mechanism 500.

The activity of the unlocking mechanism 800 is arranged on the base 100, the locking mechanism 210 corresponding to the unlocking mechanism 800 is arranged on the top cover 200, the unlocking mechanism 800 can be buckled on the locking mechanism 210, the support mechanism 900 is movably arranged on the base 100, when people rotate the unlocking mechanism 800 to a preset angle, the unlocking mechanism 800 is not buckled on the locking mechanism 210 any more, so, the top cover 200 rotates relative to the base 100, and when 90 degrees is formed between the top cover 200 and the base 100, people control the support mechanism 900, the support mechanism 900 is clamped between the base 100 and the top cover 200, and the internal structure of the metal junction box can be conveniently checked and maintained by people.

As shown in fig. 1 and fig. 3 to fig. 5, the limiting mechanism 700 includes a fixing plate 710 and a limiting plate 720, the fixing plate 710 is detachably connected to the base 100, the fixing plate 710 is parallel to the limiting plate 720, a connecting plate 730 is disposed between the fixing plate 710 and the limiting plate 720, the fixing plate 710 is perpendicular to the fixing plate 710, the introducing mechanism 400 includes an introducing base 410, the introducing base 410 is provided with an introducing eye 420 and a left bolt 430, the left bolt 430 is screwed to the module main body 300, the introducing eye 420 is communicated with the introducing base 410, the introducing mechanism 500 includes an extracting base 510, the extracting base 510 is provided with an extracting eye 520 and a right bolt 530, the right bolt 530 is screwed to the module main body 300, and the extracting eye 520 is communicated with the extracting base 510; the module body 300 comprises a hook 310 for clamping the guide rail 110 and an introducing table 320 for installing the introducing base 410, one side of a limiting plate 720 far away from a connecting plate 730 is abutted against the introducing base 410, the bottom surface of the limiting plate 720 is abutted against the introducing table 320, when the module is installed, a person firstly clamps an introducing eye 420 on the introducing base 410, then fixes the introducing base 410 on the introducing table 320 of the module body 300 through a left bolt 430, repeats the operation, clamps an extracting eye 520 on the extracting base 510, then fixes the extracting base 510 on the module body 300 through a right bolt 530, then threadedly connects the guide rail 110 on the base 100, then clamps the module body 300 on the guide rail 110, and clamps one side of the guide rail 110 close to the hook 310 in the hook 310, thus limits the module body 300 from moving relative to the guide rail 110, finally, threadedly connects a fixing plate 710 with the base 100 to the right, and make the one end of the spacing plate 720 far away from the connecting plate 730 support the side of the introducing base 410, and its bottom surface supports the introducing table 320, thus, the module body 300 is limited to move leftwards corresponding to the guide rail 110, and when people install the module body 300 or insert the user's electric wire into the leading-out mechanism 500 or insert the general electric wire into the leading-in mechanism 400, through the cooperation of the guide rail 110 and the spacing plate 720, the module body 300 can be prevented from moving transversely relative to the guide rail 110, so, not only is it convenient for people to install the metal distribution box, and ensure the stable insertion of the general electric wire or the user's electric wire into the metal distribution box.

As shown in fig. 1-2 and 8-10, in the present invention, the rotating rod 810, the handle 811 and the latch 812 are all manufactured by a zinc die casting process and electroplated with nickel, and electroplating nickel on the rotating rod 810, the handle 811 and the latch 812 can effectively prevent the unlocking mechanism 800 from being oxidized, thereby prolonging the service life of the unlocking mechanism 800.

The unlocking mechanism 800 includes a rotating rod 810 penetrating the base 100, a handle 811 is disposed at one end of the rotating rod 810, a latch 812 is disposed at the other end of the rotating rod 810, a central axis of the rotating rod 810 is perpendicular to the latch 812, a first blocking rod 820 and a second blocking rod 830 for limiting the rotation of the rotating rod 810 are further disposed in the base 100, and the locking mechanism 210 includes a first locking plate 211 and a second locking plate 212, the first locking plate 211 is detachably connected to the top cover 200, the first locking plate 211 is parallel to the second locking plate 212, the second locking plate 212 is provided with a locking groove 212a corresponding to the latch 812, when installing, one needs to screw the first locking plate 211 to the top cover 200, and make the first locking plate 211 parallel to the top cover 200, and the second locking plate 212 is parallel to the first locking plate 211, so that the second locking plate 212 is parallel to the top cover 200, when working, one needs to hold and rotate the handle 811 to make the rotating rod 810 drive the latch 812 to rotate, when the latch 812 rotates out of the locking groove 212a and abuts against the second blocking bar 830, people can easily open the top cover 200, when people close the top cover 200, the top cover 200 needs to be firstly turned over to the base 100, then the handle 811 is held and rotated, so that the rotating rod 810 drives the latch 812 to rotate, and when the latch 812 abuts against the first blocking bar 820, the latch 812 is just clamped in the locking groove 212a, thereby limiting the turning of the top cover 200.

Further, an inclined plate 213 is arranged between the first locking plate 211 and the second locking plate 212, an included angle a is formed between the first locking plate 211 and the inclined plate 213, and the inclined plate 213 is arranged to generate a gap for clamping the clamping tongue 812 between the second locking plate 212 and the top cover 200, so that the clamping tongue 812 is conveniently clamped in the locking groove 212a, and thus people can conveniently open or close the top cover 200.

As shown in fig. 1, 6 and 7, the supporting mechanism 900 includes a supporting post 910, a supporting channel 911 is formed in the supporting post 910, a movable post 920 is movably disposed in the supporting channel 911, a handle 921 is detachably connected to the movable post 920, a stop ring 930 for limiting the movable post 920 from moving axially is disposed at one end of the supporting channel 911, when a user opens the top cover 200 and turns over to 90 ° from the base 100, the user only needs to apply an acting force on the handle 921 to make the handle 921 push the movable post 920 to move, and when one end of the handle 921 far away from the movable post 920 butts against the supporting post 910, the movable post 920 is just clamped between the top cover 200 and the base 100, so that the top cover 200 cannot turn over towards the base 100, thereby facilitating the inspection and maintenance of the metal distribution box by the user, when the user closes the top cover 200, only needs to pull the handle 921, so that the handle 921 drives the movable post 920 to move towards the stop ring 930, when the movable post 920 abuts against the stop ring 930, the movable post 920 does not move any more, and the top cap 200 can be turned over toward the base 100; the other end of the supporting channel 911 is provided with a circular nozzle 940, and the circular nozzle 940 has a rounded corner (not labeled in the figures), so that when the movable post 920 is clamped between the top cover 200 and the base 100, the circular nozzle 940 can prevent the surface of the movable post 920 from being worn.

As shown in fig. 3-4, the module body 300 is provided with the lead-in piece 330 corresponding to the lead-in seat 410 and the lead-out piece 340 corresponding to the lead-out seat 510, the lead-in piece 330 is provided with the lead-in grip 331, the lead-out piece 340 is provided with the lead-out grip 341, the grey head module 600 includes the grey head body 610, the grey head body 610 is provided with the connection terminal 611, one end of the connection terminal 611 can be inserted into the lead-in grip 331, the other end of the connection terminal 611 can be inserted into the lead-out grip 341, when a user needs to obtain an electrical signal from the main electrical wire, the grey head body 610 is clamped on the module body 300, and one end of the connection terminal 611 is inserted into the lead-in grip 331, and at the same time, the other end of the connection terminal 611 is inserted into the lead-out grip 341, so that the main electrical wire, the lead-in piece 330, the connection terminal 611, the lead-out piece 340 and the electrical wire of the user form a circuit, and the electrical signal on the main electrical wire sequentially passes through the lead-in piece 330, The connection terminal 611, the lead-out piece 340 and the user electric wire are transmitted to the equipment used by the user, when the user does not need to obtain the electric signal, the user only needs to pull out the grey head body 610, namely one end of the connection terminal 611 is pulled out from the lead-in clamping hand 331, and meanwhile, the other end of the connection terminal 611 is pulled out from the lead-out clamping hand 341, so that an open circuit is formed between the lead-in piece 330 and the lead-out piece 340, and the electric signal of the total electric wire is not transmitted to the user equipment; the ash head cover 620 is clamped on the ash head body 610, and due to the arrangement of the ash head cover, the phenomenon that the wiring terminal is out of order due to the fact that external dust enters the ash head body is avoided.

The working principle of the invention is as follows:

when the module main body 300 is clamped on the guide rail 110, and one side of the guide rail 110 close to the clamping hook 310 is clamped in the clamping hook 310, the guide rail 110 limits the module main body 300 to move rightwards relative to the guide rail 110, and then the fixing plate 710 is in threaded connection with the base 100, and one end of the limiting plate 720, which is far away from the connecting plate 730, abuts against the side surface of the lead-in base 410, and the bottom surface of the limiting plate abuts against the lead-in table 320, so that the module main body 300 is limited to move leftwards relative to the guide rail 110, and thus, the module main body 300 is prevented from moving transversely relative to the guide rail 110 through the cooperation effect of the guide rail 110 and the limiting plate 720, the metal distribution box is convenient to install by people, and the total electric wires or user electric wires are ensured to be stably connected into the metal distribution box;

the leading-in sealing ring 120, the leading-out sealing ring 130 and the movable sheet 140 are all made of EVA materials, so that people can conveniently install the leading-in sealing ring 120 and the leading-out sealing ring 130, the metal junction box is suitable for areas with severe environments, and the metal junction box has high stability;

when the latch 812 abuts against the first stop lever 820, the latch 812 is just latched into the locking groove 212a, thereby closing the top cover 200, and when the latch 812 abuts against the second stop lever 830, the latch 812 is rotated out of the locking groove 212a, thereby allowing a user to easily open the top cover 200;

when people overturn the top cover 200 and make the top cover and the base 100 form an angle of 90 degrees, the movable column 920 is clamped between the top cover 200 and the base 100 through the handle 921, so that people can conveniently check and maintain the internal structure of the metal junction box.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A metal distribution enclosure, comprising:

2. The metal distribution box of claim 1, wherein the limiting mechanism comprises a fixing plate and a limiting plate, the fixing plate is detachably connected to the base, the fixing plate is parallel to the limiting plate, a connecting plate is arranged between the fixing plate and the limiting plate, and the fixing plate is perpendicular to the fixing plate.

3. The metal distribution box of claim 2, wherein the introducing mechanism includes an introducing seat, the introducing seat is provided with an introducing hole in a clamping manner and a left bolt in a penetrating manner, the left bolt is in threaded connection with the module body, and the introducing hole is communicated with the introducing seat.

4. The metal distribution box of claim 3, wherein the module body includes a hook for engaging the rail and a guide platform for receiving the guide seat, and a side of the limiting plate away from the connecting plate abuts against the guide platform and a bottom of the limiting plate abuts against the guide platform.

5. The metal distribution box of claim 1 wherein the inlet gasket and the outlet gasket each have a plurality of movable plates.

6. The metal junction box of claim 1, wherein the unlocking mechanism comprises a rotating rod penetrating through the base, a handle is disposed at one end of the rotating rod, a latch is disposed at the other end of the rotating rod, a central axis of the rotating rod is perpendicular to the latch, and a first stop lever and a second stop lever for limiting the rotation of the rotating rod are disposed in the base.

7. The metal junction box of claim 6, wherein the locking mechanism comprises a first locking plate and a second locking plate, the first locking plate is detachably connected to the top cover, the first locking plate is parallel to the second locking plate, the second locking plate is provided with a locking groove corresponding to the locking tongue, an inclined plate is arranged between the first locking plate and the second locking plate, and an included angle is formed between the first locking plate and the inclined plate.

8. The metal distribution box of claim 1, wherein the support mechanism includes a support post, a support channel is formed in the support post, a movable post is movably disposed in the support channel, a handle is detachably connected to the movable post, a stop ring for limiting axial movement of the movable post is disposed at one end of the support channel, and a ring mouth is disposed at the other end of the support channel.

9. The metal junction box of claim 3, wherein the leading-out mechanism comprises a leading-out base, a leading-out eye is clamped on the leading-out base, and a right bolt is arranged in the leading-out base in a penetrating manner, the right bolt is in threaded connection with the module main body, and the leading-out eye is communicated with the leading-out base; the module comprises a module body and is characterized in that a leading-in piece corresponding to a leading-in seat and a leading-out piece corresponding to a leading-out seat are arranged in the module body, a leading-in clamping hand is arranged on the leading-in piece, and a leading-out clamping hand is arranged on the leading-out piece.

10. The metal junction box of claim 9 wherein the grey head module includes a grey head body, a connection terminal is disposed in the grey head body, one end of the connection terminal is insertable into the leading-in grip, the other end of the connection terminal is insertable into the leading-out grip, and the grey head body is provided with a grey head cover in a clamping manner.