CN111769458B - Prefabricated block terminal of integral type - Google Patents

Abstract

The invention relates to an integrated prefabricated distribution box, which belongs to the technical field of distribution boxes and comprises a box body with an opening at one end, wherein a plurality of installation inner frames are detachably connected in the box body, electric elements are respectively installed on the installation inner frames, first power connection elements are arranged on the installation inner frames, the electric elements are communicated with the first power connection elements, second power connection elements are respectively arranged in the installation inner frames and the box body, the second power connection elements on the installation inner frames are electrically connected with the first power connection elements, third power connection elements are arranged in the distribution box, and the second power connection elements in the box body are communicated with the third power connection elements. The invention has the advantages that by arranging the installation inner frame, workers can easily install the electrical elements on the installation inner frame, the installation of the electrical elements into the distribution box is indirectly realized, and the workers can build the whole prefabricated distribution box and the wall body, so that the situations of small operation space and large installation difficulty when the workers want to install the electrical elements in the built distribution box are avoided.

Description

Prefabricated block terminal of integral type

Technical Field

The invention relates to the technical field of distribution boxes, in particular to an integrated prefabricated distribution box.

Background

The distribution box is a carrier of most electrical elements in a circuit, and generally comprises a low-voltage electrical wiring, and electrical elements such as switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a screen to form the low-voltage distribution box. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. The prefabricated distribution box places a preset distribution box in the middle of a concrete wall body, joints are filled and chisels are removed, and the distribution box and the wall body are integrated. The prefabricated block terminal of integral type is the mode that utilizes BIM simulation, according to the size of block terminal, mounted position and specification design mould, pour a layer of concrete outside the block terminal, make concrete and block terminal form the precast concrete fragment of brick that has the block terminal that a size reaches the predetermined requirement, the staff only needs to transport the job site with "concrete fragment of brick" that the prefabricated block terminal of integral type formed, and build by laying bricks or stones with wall body an organic whole and can accomplish the setting to the block terminal, and reduce the work load of required chipping and the operation of caulking.

The existing integrated prefabricated distribution box is usually built in a wall body, and then workers install all electrical components in the distribution box, so that the distribution box is configured.

The above prior art solutions have the following drawbacks: when installing electrical components in to the block terminal, the staff receives block terminal actual position's restriction, and the block terminal is too high and crosses low and all can make the installation degree of difficulty increase, and the space in the block terminal is comparatively narrow and small simultaneously, and during electrical components fixed mounting, the staff can operating space less, the operating difficulties.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide an integrated prefabricated distribution box which has the effects that by arranging an installation inner frame, electric elements are easily installed on the installation inner frame outside the distribution box, then the installation inner frame is inserted into a box body, and finally the distribution box with the electric elements is integrally poured into a wall body, so that the installation of the electric elements is realized, and the difficulty in installation and operation is reduced.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a prefabricated block terminal of integral type, includes one end open-ended box, can dismantle in the box and be connected with a plurality of installation inside casing, electrical components installs respectively on the installation inside casing, be equipped with first connecing the electric component on the installation inside casing, electrical components connects the electric component intercommunication with first connecing, the installation inside casing connects the electric component with the inside second that is equipped with respectively of box, second on the installation inside casing connects the electric component to connect electric component and first connecing the electric component electricity to be connected, be equipped with the third on the block terminal and connect the electric component, the second in the box connects the electric component to be linked together with the third and connects the electric component.

Through adopting above-mentioned technical scheme, when installing electrical components to the switch board, at first with electrical components fixed mounting on the installation inside casing, and connect electrical components and first electric connection of connecing, then put into the box with the installation inside casing, and make two seconds connect electric connection each other, when with switch board integral erection on the wall body, at first connect the cable buried underground in the electric component connection wall body through the third, then put into the wall body with the switch board in the middle of, thereby need not to install electrical components after the installation switch board, electrical components's the installation degree of difficulty has been reduced, simultaneously because when the staff installs electrical components on the installation inside casing, the installation inside casing is located outside the switch board, the staff has more sufficient space to carry out the installation operation, the installation operation is comparatively easy.

The present invention in a preferred example may be further configured to: the second connects electric element to be mutually supported public terminal row and female terminal row, the second on the installation inside casing connects electric element to be located the installation inside casing one side towards the box diapire, each second in the box connects electric element to set up in the second on the installation inside casing respectively and connects electric element relatively.

Through adopting above-mentioned technical scheme, owing to chooseed public terminal row and the female terminal row of mutually supporting for use and connect the electric element as the second, when the staff will install the inside casing and insert the relevant position in the box, public terminal row is pegged graft with the female terminal row to electric element on having realized the installation inside casing connects electric element to be connected with the third through two seconds, thereby is connected with the cable that predetermines in the wall body, has further reduced the degree of difficulty of staff at the internal wiring of box.

The present invention in a preferred example may be further configured to: the inner side wall of the box body is fixedly connected with a guide frame, the installation inner frame and the guide frame slide along the depth direction of the box body, and a plurality of thrust frames are arranged on the bottom wall of the box body.

Through adopting above-mentioned technical scheme, owing to set up the leading truck in the box, when placing the installation inside casing to cabinet internal portion, the staff only needs to install the inside casing and promote to cabinet internal portion under the guide of leading truck, can insert the closure with public terminal row and female terminal row, accomplish the electricity between two second and connect the electric connection between the electric component, the operation of connecting the electricity has further been simplified, the convenience has been promoted, and simultaneously, restrict the promotion position of installation inside casing through thrust stopping frame, reduce because the staff uses too hard and lead to the second to connect the impaired condition of electric component.

The present invention in a preferred example may be further configured to: the utility model discloses a structure of a box body, including leading truck, function groove, extension spring, draw piece, claw and draw piece, the leading truck has seted up the function groove towards one side of installation inside casing, the length direction of function groove and leading truck extends, the one end fixedly connected with extension spring of function groove orientation bottom wall, the function inslot is equipped with along the gliding piece that draws of function groove length direction, draw the one end and the extension spring of piece orientation bottom wall to be connected with, draw the piece to rotate on the lateral wall of installation inside casing and be connected with and collude the claw, collude the claw and draw the piece and rotate the junction and be equipped with the torsional spring, the torsional spring produces to colluding the claw and makes the one end that colludes the claw and keep away from the piece to box open end one side pivoted moment of torsion, the piece that draws is located to collude one side of claw orientation box open end and is equipped with the stopper, it has the pull ring to draw the tip of piece to articulate towards the box open end, set firmly the couple with pull ring looks adaptation on the one end inner wall that the function groove is close to the box open end.

Through adopting above-mentioned technical scheme, before the box was put into to the installation inside casing, the staff at first pulled the piece through the pull ring pulling, and hang the pull ring in couple department, the installation inside casing was contradicted with colluding the claw when entering, collude the claw and receive the extrusion and rotate to the bottom half direction, after the installation inside casing was through colluding the claw position, collude the claw and open again under the effect of torsional spring, the staff takes off the pull ring from the couple, under extension spring's effect, the piece that draws moves to the bottom half direction, collude the claw and catch on the installation inside casing, and compress tightly the installation inside casing to the bottom half direction, thereby continuously support tight two second and connect electrical component, reduce because reasons such as vibrations, appear the gap and cause contact failure's possibility between two second and connect electrical component.

The present invention in a preferred example may be further configured to: the utility model discloses a terminal box, including leading truck, female terminal row, spacing pin and installation inside casing, be connected with the spacing pin along being on a parallel with box open end plane rotation on the lateral wall of leading truck both sides, work as after the cooperation is inserted and connected to male terminal row and female terminal row on the installation inside casing, the spacing pin is contradicted with one side that the box diapire was kept away from to the installation inside casing.

Through adopting above-mentioned technical scheme, after the staff promoted the installation inside casing to the assigned position, stir the spacer pin, make the spacer pin rotate and part and installation inside casing support tightly towards the lateral wall of box open end one side to the position of restriction installation inside casing reduces the possibility that the installation inside casing is deviate from the box by accident.

The present invention in a preferred example may be further configured to: the bottom of box has the right angle pipe along box edge profile sliding connection, the mouth of pipe department of right angle pipe has set firmly the clamp.

Through adopting above-mentioned technical scheme, through setting up the right angle pipe, make from the box in connect the cable that electric component is connected with the second and pass from the right angle pipe to it is fixed with the cable through the clamp, realize the direction of arranging the cable and to the relative fixation of cable and box diapire, it arranges the confusion to reduce the cable in the box, and reduced the range of cable drunkenness in transporting and the installation, thereby reduced the cable drunkenness and caused the possibility of electric connection contact failure.

The present invention in a preferred example may be further configured to: the box body is hinged to a box door on the side wall, and sealing gaskets are arranged on the circumferential side wall of the box door and the inner side wall of the opening of the box body.

By adopting the technical scheme, the box door and the sealing gasket reduce the possibility that concrete slurry or moisture enters the box body to cause pollution and influence on internal electrical elements when the box body and the wall body are built.

The present invention in a preferred example may be further configured to: the mounting inner frame is provided with a sliding strip which is arranged in parallel to the length direction of the mounting frame, the sliding strip is provided with a plurality of mounting seats in a sliding mode, one side, facing the sliding strip, of each mounting seat is provided with a sliding groove matched with the sliding strip, the side wall of each mounting seat is provided with a compression screw, the compression screw penetrates into the sliding groove, and the mounting seats are provided with threaded holes for mounting elements of power supplies.

Through adopting above-mentioned technical scheme, through the sliding connection cooperation of mount pad and installation inside casing, the staff can adjust the interval between the mount pad, fix a position the mount pad through housing screw simultaneously, adjusted the interval between the screw hole that is used for installing electrical components on each mount pad, thereby the electrical components of installation different grade type and model, in the actual process, the different actual need of staff's accessible changes the combination that sets up electrical components in the block terminal, the suitability of block terminal has been promoted.

The present invention in a preferred example may be further configured to: equal fixedly connected with support sleeve on each circumference outer wall of box, the tip that support sleeve kept away from the box rotates and is connected with the screw ring, it has the support column to slide along the axis direction in the sleeve to support, screw ring and support column circumference lateral wall screw-thread fit, support sleeve's one end fixedly connected with backup pad is kept away from to the support column.

Through adopting above-mentioned technical scheme, before the block terminal was put into the mould, the staff predetermine the position of cable in according to the wall body, drill on the box, pour concrete outside the box and make the block terminal whole form before the prefabricated block terminal, the staff is through adjusting the screw ring to the length that the adjustment support column stretches out, and support the backup pad tightly on the mould inside wall, realize the location, reduce because actually pour the back, trompil position and predetermined emergence deviation, lead to the fact the condition of hindrance to wiring work.

The present invention in a preferred example may be further configured to: the circumferential outer contour of the threaded ring is hexagonal.

Through adopting above-mentioned technical scheme, set the outline of threaded ring to the hexagon to the staff of being convenient for stretches into the spanner between mould and the box, rotates the threaded ring, thereby adjusts the support column, has promoted the operation convenience.

In summary, the invention includes at least one of the following beneficial technical effects:

1. by arranging the installation inner frame, a worker can easily install the electric appliance element on the installation inner frame, then the installation inner frame is placed in the box body, the installation of the electric appliance element in the distribution box is indirectly realized, and after the box body is poured and prefabricated, the worker builds the whole prefabricated distribution box and a wall body, so that the situations of small operation space and large installation difficulty when the worker wants to install the electric appliance element in the distribution box after building are avoided;

2. through the matching of the male terminal row and the female terminal row, the difficulty of electric connection between an electric element in the mounting frame and a circuit in the box body is reduced, the operation is further simplified, and the convenience is improved;

3. through the sliding connection who sets up mount pad and installation inside casing, the adjustment of being convenient for is used for installing electrical components's screw hole interval, makes the installation inside casing be applicable to more electrical components's installation, has promoted the application scope of device.

Drawings

Fig. 1 is a schematic diagram of the overall external structure of the distribution box according to the embodiment.

FIG. 2 is a schematic structural diagram of the present embodiment for showing the interior of the box body before the inner frame is installed in the box body.

Fig. 3 is a schematic diagram of the present embodiment for embodying a right-angle bushing structure.

FIG. 4 is a schematic structural diagram of the inner frame of the present embodiment for showing the inside of the box after the inner frame is installed in the box.

Fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Fig. 6 is a schematic diagram for showing the structures on the pull block in the present embodiment.

Fig. 7 is a schematic diagram of the present embodiment for showing the structure of the lower side of the mounting inner frame.

Fig. 8 is a schematic structural diagram for showing the structure of mounting the mount pad on the inner frame in the present embodiment.

In the figure, 1, a box body; 11. a third power connection element; 12. a thrust frame; 13. a right angle conduit; 131. clamping a hoop; 14. a box door; 2. installing an inner frame; 21. a first power connection element; 22. a slide bar; 23. a guide groove; 31. a male terminal row; 32. a female terminal row; 4. a guide frame; 41. a functional groove; 411. an extension spring; 412. pulling the block; 4121. hooking claws; 4123. a limiting block; 4124. a pull ring; 413. hooking; 42. a spacing pin; 43. leading edges; 5. a mounting seat; 51. a sliding groove; 52. a compression screw; 53. a threaded hole; 6. a support sleeve; 61. a threaded ring; 62. a support pillar; 621. a support plate; 7. and (3) electrical components.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the integrated prefabricated distribution box disclosed by the invention comprises a box body 1, wherein a box door 14 is hinged to the side wall of the box body 1, and a sealing gasket (not shown in the figure) is arranged between the box door 14 and the box body 1. All set firmly support sleeve 6 on each lateral wall of box 1, it has support column 62 to make intraductal edge axis sliding connection of cover, support sleeve 6 keeps away from the tip rotation of box 1 and is connected with the circumference profile for hexagonal screw ring 61, screw ring 61 and support column 62's circumference lateral wall threaded connection, thereby when the staff rotates screw ring 61, make support column 62 along support sleeve 6's circumference flexible, support column 62 keeps away from the one end of support sleeve 6 and has set firmly backup pad 621, backup pad 621 is on a parallel with the setting of box 1 lateral wall. When concrete needs to be poured outside the box body 1, a worker can position the box body 1 inside the pouring mold by adjusting the positions of the support rods and the support plates 621.

Referring to fig. 2 and 3, on the 1 diapire of box, there are a plurality of right angle pipes 13 along 1 marginal direction of box through the cooperation sliding connection of slider and spout, and right angle pipe 13 is the tubular metal resonator that is 90 degrees contained angles and buckles, and the orificial one of them one end in its both ends is towards 1 opening end direction of box, and the direction and the fixedly connected with clamp 131 that the other end perpendicular to spout extends, and clamp 131 is used for fixing the cable that will pass. The slider is in tight fit with the sliding groove, so that the situation that the right-angle guide pipe 13 slides in the box body 1 when a worker does not push the right-angle guide pipe 13 is reduced.

Referring to fig. 2 and 3, a power transmission cable is communicated with the second power connection element in the box body 1, sufficient allowance of the power transmission cable is reserved in the box body 1, the power transmission cable extends to a right-angle guide pipe 13, the power transmission cable penetrates into the right-angle guide pipe 13 from one end parallel to the bottom surface of the box body 1 and penetrates out of the other end of the right-angle guide pipe 13, a third power connection element 11 is connected to one end of the penetrating power transmission cable, and the third power connection element 11 is a wiring terminal strip.

Referring to fig. 4, a plurality of guide frames 4 extending along the depth direction of the box body 1 are arranged on two side walls of the box body 1 perpendicular to the right-angle guide pipe 13, and the guide frames 4 are arranged in pairs and are symmetrically distributed on the two side walls. Two guide edges 43 extending parallel to the length direction of the guide frame 4 are arranged on the opposite side walls of the guide frame 4 on the two adjacent side walls, and the two chamfered edges are respectively positioned on the two sides of the width direction of the guide frame 4 in the same group. An installation inner frame 2 is arranged between the two guide frames 4 in the same group, an Contraband-shaped frame is arranged at the opening end of the installation inner frame 2 towards the opening end of the box body 1, guide grooves 23 (refer to fig. 7) matched with the guide ribs 43 are arranged on the side walls of the two parallel plates of the installation inner frame 2 facing the two guide frames 4, and two ends of each guide groove 23 respectively penetrate through the side walls of the installation inner frame 2. The worker inserts the mounting inner frame 2 into the box body 1 by the engagement of the guide grooves 23 and the guide ribs 43.

Referring to fig. 4 and 5, a functional groove 41 is formed on the guide frame 4 between the two chamfered edges, the functional groove 41 is arranged parallel to the length direction of the guide frame 4, a pull block 412 is slid in the functional groove 41, and an extension spring 411 (see fig. 2) is fixedly connected to the end portions of the pull block 412 and the functional groove 41 close to the bottom wall of the box body 1.

Referring to fig. 5 and 6, the end of the pulling block 412 facing the opening end of the box body 1 is hinged with a pulling ring 4124, a hook 413 is fixedly arranged on the inner wall of the functional groove 41 near the opening end of the box body 1, and the pulling ring 4124 is sleeved on the hook 413. The side wall of the pulling block 412 facing to one side of the mounting inner frame 2 is hinged with a hook 4121. The hinge joint of the hook 4121 and the pull block 412 is provided with a torsion spring, and the elasticity of the torsion spring enables the hook 4121 to rotate towards the opening end of the box 1. The pulling block 412 is provided with a yielding groove for the hook 4121 to fold in. A limiting block 4123 is arranged on one side, facing the opening end of the box body 1, of the pulling block 412, of the hook 4121, and the limiting block 4123 limits rotation of the hook 4121, so that the hook 4121 rotates at most to be 90 degrees relative to the pulling block 412. The side walls of the two sides of the guide frame 4 in the width direction are rotatably connected with limit pins 42, and the limit pins 42 rotate along the direction parallel to the bottom wall of the box body 1.

Referring to fig. 7, second power connection elements are respectively disposed at positions of the mounting inner frame 2 opposite to the bottom wall of the box body 1, and the second power connection elements are selected from a male terminal row 31 (see fig. 2) and a female terminal row 32. The male terminal strip 31 is fixedly arranged on the bottom wall of the box body 1, and the female terminal strip 32 is fixedly connected to the mounting inner frame 2 and is arranged opposite to the male terminal strip 31. The bottom of the box body 1 is fixedly connected with a thrust frame 12, and the top end of the thrust frame 12 is flush with the bottom end of the guide rail. When the installation inside casing 2 is inserted into the box body 1 by a worker, the male terminal row 31 is in inserted connection with the female terminal row 32, and when the installation inside casing 2 is abutted against the thrust frame 12, the male terminal row 31 is in fit with the female terminal row 32 and is tightly inserted. When a worker inserts the installation inner frame 2 into the box body 1 along the guide frame 4 and tightly abuts against the thrust frame 12, the worker shifts the limiting pin 42 to enable the limiting pin 42 to block and tightly abut against the end portion, facing the opening end of the box body 1, of the installation inner frame 2.

Referring to fig. 8, a slide bar 22 is fixedly arranged on the inner wall of the installation inner frame 2 opposite to the opening end, a plurality of installation seats 5 are arranged on the slide bar 22 in a sliding manner, sliding grooves 51 matched with the slide bar 22 are formed in the side walls of the installation seats 5 facing the slide bar 22, screws are arranged on the side walls of the installation seats 5, penetrate through the sliding grooves 51 and abut against the slide bar 22, and therefore the installation seats 5 are located. The installation seat 5 is provided with a plurality of threaded holes 53 towards the side wall of one side of the opening end of the installation inner frame 2, and a worker adjusts the distance between the threaded holes 53 by adjusting the position of each installation seat 5, so that the electric appliance elements 7 of different types and specifications are installed. The device suitability is improved. The mounting inner frame 2 is fixedly connected with a plurality of first power connection elements 21, the first power connection elements 21 are power connection columns, the electric appliance elements 7 are communicated with the power connection columns through wires, and the power connection columns are communicated with the female terminal row 32.

The implementation principle of the embodiment is as follows: in the actual process of installing and prefabricating the prefabricated distribution box, a worker selects the electrical component 7 according to actual distribution needs, installs the electrical component 7 on the installation seat 5 through screws, and communicates the electrical component 7 with the first power connection component 21.

Before inserting installation inside casing 2 into leading truck 4, the staff drills on box 1 according to actual installation needs, supplies the cable to penetrate and wear out box 1 lateral wall. The staff manually extends the cable communicated with the inside of the box body 1 and the third electric connecting element 11 at the end part of the cable out of the hole, and adjusts the position of the right-angle conduit 13 and screws the clamp 131, so that the right-angle conduit 13 limits the cable remained in the box body 1.

The mounting inner frame 2 with the electrical components 7 mounted thereon is inserted into the guide frame 4. When the inner mounting frame 2 passes through the pulling block 412, the hook 4121 is pressed into the receding groove, and when the inner mounting frame 2 passes through the pulling block 412, the hook 4121 is ejected again.

The staff pushes away the promotion with installation inside casing 2 and pushes up and contradict with thrust frame 12, and then the staff dials pull ring 4124, under extension spring 411's pulling, draws piece 412 to box 1 diapire direction motion, colludes claw 4121 and continues to compress tightly installation inside casing 2 on mount pad 5 after installation inside casing 2 contradicts, reduces box 1 vibrations and leads to that male terminal row 31 and female terminal row 32 take place to become flexible, causes contact failure's possibility. The staff rotates the spacer pin 42, and the spacer pin 42 is contradicted with the installation inside casing 2 to prevent the condition that the inside casing is deviate from in the box 1 by accident.

When pouring outside box 1, the staff puts into the mould with box 1, through each screw ring 61 of spanner adjustment, makes backup pad 621 contradict with the mould lateral wall to fix a position box 1, reduce the dimensional deviation of pouring time box 1 position. And ensures that each hole position on the case 1 corresponds to a predetermined position.

Before casting, the worker bonds the plastic pipe to each hole of the box body 1, so that the cable and the third electrical connection element 11 pass through the plastic pipe and penetrate out of the mold, and then concrete is cast. After the concrete has set, the plastic tube forms a passage in the concrete for the cable to pass through.

Actually when installing prefabricated block terminal to the wall body, the staff at first communicates the cable that predetermines in block terminal inner circuit and the wall body through third electric component 11, then fills the wall body with the prefabricated section that the block terminal formed, carries out a small amount of picks chisels and the work of caulking, can accomplish the setting to prefabricated block terminal.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (7)

1. The utility model provides a prefabricated block terminal of integral type, includes one end open-ended box (1), its characterized in that: a plurality of installation inner frames (2) are detachably connected in the box body (1), electric elements are respectively installed on the installation inner frames (2), a first power connection element (21) is arranged on each installation inner frame (2), the electric elements are communicated with the first power connection elements (21), second power connection elements are respectively arranged in the installation inner frames (2) and the box body (1), the second power connection elements on the installation inner frames (2) are electrically connected with the first power connection elements (21), third power connection elements (11) are arranged in the distribution boxes, and the second power connection elements in the box body (1) are electrically connected with the third power connection elements (11);

the second power connection elements are a male terminal row (31) and a female terminal row (32) which are matched with each other, the second power connection elements on the installation inner frame (2) are positioned on one side, facing the bottom wall of the box body (1), of the installation inner frame (2), and the second power connection elements in the box body (1) are arranged oppositely to the second power connection elements on the installation inner frame (2);

the inner side wall of the box body (1) is fixedly connected with a guide frame (4), the installation inner frame (2) and the guide frame (4) slide along the depth direction of the box body (1), and a plurality of thrust frames (12) are arranged on the bottom wall of the box body (1);

a functional groove (41) is formed in one side, facing the installation inner frame (2), of the guide frame (4), the functional groove (41) and the guide frame (4) extend in the length direction, a tension spring (411) is fixedly connected to one end, facing the bottom wall of the box body (1), of the functional groove (41), a pulling block (412) sliding in the length direction of the functional groove (41) is arranged in the functional groove (41), one end, facing the bottom wall of the box body (1), of the pulling block (412) is connected with the tension spring (411), a hook claw (4121) is rotatably connected to the side wall, facing the installation inner frame (2), of the pulling block (412), a torsion spring is arranged at the rotary connection position of the hook claw (4121) and the pulling block (412), the torsion spring generates torsion which enables one end, far away from the pulling block (412), of the hook claw (4121) to rotate towards one side of the opening end of the box body (1), and a limiting block (4123) is arranged on one side, facing the opening end of the hook claw (4121), the end part of the pulling block (412) facing the opening end of the box body (1) is hinged with a pulling ring (4124), and a hook (413) matched with the pulling ring (4124) is fixedly arranged on the inner wall of one end of the functional groove (41) close to the opening end of the box body (1).

2. The prefabricated block terminal of claim 1, wherein: the utility model discloses a box of leading truck, including leading truck (4), box (1) diapire is kept away from to leading truck (4) both sides lateral wall, rotates along being on a parallel with box (1) opening end plane and is connected with spacer pin (42), works as public terminal row (31) on installation inside casing (2) are pegged graft with female terminal row (32) and are cooperated the back, one side conflict that box (1) diapire was kept away from in spacer pin (42) and installation inside casing (2).

3. The prefabricated block terminal of claim 1, wherein: the bottom of box (1) is connected with right angle pipe (13) along box (1) edge profile sliding, clamp (131) have set firmly in the mouth of pipe department of right angle pipe (13).

4. The prefabricated block terminal of claim 1, wherein: the box is characterized in that a box door (14) is hinged to the side wall of the box body (1), and sealing gaskets are arranged on the circumferential side wall of the box door (14) and the inner side wall of the opening of the box body (1).

5. The prefabricated block terminal of claim 1, wherein: be equipped with draw runner (22) on installation inside casing (2), it has a plurality of mount pads (5) to slide on draw runner (22), mount pad (5) towards one side of draw runner (22) seted up with draw runner (22) complex sliding tray (51), be equipped with housing screw (52) on mount pad (5) lateral wall, housing screw (52) penetrate in sliding tray (51), set up screw hole (53) of power supply ware component installation on mount pad (5).

6. The prefabricated block terminal of claim 1, wherein: equal fixedly connected with support sleeve (6) on each circumference outer wall of box (1), the tip that box (1) was kept away from in support sleeve (6) rotates and is connected with threaded ring (61), it has support column (62) to slide along the axis direction in support sleeve (6), threaded ring (61) and support column (62) circumference lateral wall screw-thread fit, support column (62) keep away from one end fixedly connected with backup pad (621) of support sleeve (6).

7. The prefabricated block terminal of claim 6, wherein: the circumferential outer contour of the threaded ring (61) is hexagonal.

Images