CN111751673A - A fault fixed-point protection detection device based on distribution network - Google Patents

Abstract

The invention discloses a fault fixed-point protection type detection device based on a power distribution network, wherein a protection adjusting component is arranged on the outer side of a mounting box, a buffer plate is arranged at the position of the end part of a screw rod in the mounting groove, a line-setting protection component is arranged at the position of a wiring pipe on the top surface of a cable fault detector, an arc-shaped rubber sheet is bonded between two rubber anti-slip gaskets, a ground adhering component is arranged at the bottom of a bottom plate, a sand bag is bonded between a movable rod and the inner wall of a counterweight frame, and a support table component is arranged in a box cover. The operation is more convenient, and a plurality of structures cooperate, play the protection and use more convenient effect.

Description

A fault fixed-point protection detection device based on distribution network

technical field

The invention relates to the technical field of line detection, in particular to a fault fixed-point protection type detection device based on a distribution network.

Background technique

After the failure of the distribution network, it is easy to cause two or more grounding short circuits, which will further damage the safe operation of the system. Therefore, it is necessary to find and eliminate the fault as soon as possible. The cable fault detector is specially designed for security monitoring, integrated wiring, communication circuits and other cables. It is a professional test instrument developed for cable wiring and maintenance. It integrates cable breakpoint test, short circuit test, cable search, cable sorting and other functions.

However, the detection devices currently on the market are often used outdoors, where the outdoor environment is complex, and the instruments are easily damaged by external impact. In the process of use, due to different angles, reflections often occur, which makes observation inconvenient, which brings inconvenience to use.

SUMMARY OF THE INVENTION

The present invention provides a fault fixed-point protection type detection device based on a distribution network, which can effectively solve the problem that the instrument proposed in the above-mentioned background art is easily damaged by the impact of the outside world, and due to the different angles during use, reflections often occur, resulting in observation The inconvenient situation brings inconvenience to the use.

In order to achieve the above object, the present invention provides the following technical solutions: comprising an installation box, a cable fault detector is installed inside the installation box, and a rubber plate is installed at a position between the installation box and the cable fault detector;

A protective adjustment assembly is installed on the outside of the installation box, and the protective adjustment assembly includes an installation groove, a side plate, a bottom plate, an inflatable cushion, a connecting cylinder, a rotating shaft, a rubber ring, a support ring, a buffer spring, an arc spring sheet, a connecting pipe, Positioning screw, buffer plate and rubber strip;

The two installation grooves are respectively opened on both sides of the installation box, the side plates are movably installed inside the installation grooves, the two side plates are respectively fixedly installed on the two ends of the top surface of the bottom plate, and the top side of the side plate is installed through the top. a connecting pipe, the interior of the connecting pipe is connected with a positioning screw through a thread, a buffer plate is installed at the position corresponding to the end of the screw rod, and a rubber strip is evenly bonded between the buffer plate and the installation groove;

An inflatable cushion is adhered to the bottom surface of the installation box near one end of the front surface, a connecting cylinder is fixedly installed on the bottom surface of the installation box near the inflatable cushion, and a rotating shaft is fixedly installed at the bottom end between the two side surfaces corresponding to the position of the connecting cylinder, The outer side of the rotating shaft is uniformly sleeved with a rubber ring, the outer side of the rubber ring is fixedly sleeved with a support ring, the top surface of the bottom plate is uniformly fixed with a buffer spring, and the inner wall of the side plate is bonded with an arc-shaped spring sheet.

Preferably, the outer diameter of the support ring is equal to the inner diameter of the connecting cylinder, a rubber ring groove is formed at the corresponding rubber ring of the rotating shaft, and the rubber ring is installed inside the rubber ring groove.

Preferably, the buffer plate is arc-shaped, and the radius of the buffer plate is equal to the distance from the end of the rotating shaft located on the side surface of the side plate to the end of the connecting pipe.

Preferably, a wiring pipe is installed on one end of the top surface of the cable fault detector, and an alignment protection assembly is installed on the top surface of the cable fault detector at the position of the wiring pipe. Blocks, bottom springs, connecting bottom rods, bottom line clips, top springs, connecting top rods, top line clips, rubber anti-skid gaskets, curved rubber sheets and midline clips;

The two inner threaded pipes are respectively installed on the top surface of the cable fault detector at the positions on both sides of the wiring pipe. The top of the inner threaded pipe is connected with a mounting block through a thread, and a bottom spring is welded on the top of the mounting block. A connecting bottom rod is movably installed on the top of the bottom spring, a bottom line card is welded and installed between the two connecting bottom rods, a top spring is movably installed on the top of the connecting bottom rod, and a connecting top rod is movably installed on the top of the top spring. A top line card is welded and installed between each of the connecting top rods, the bottom line card and the inner wall of the top line card are bonded with rubber anti-skid gaskets, and an arc-shaped rubber sheet is bonded between the two rubber anti-skid gaskets , and a center line card is bonded to the middle of the curved rubber sheet.

Preferably, the ends of the connecting bottom rod and the connecting top rod are provided with threaded holes at positions corresponding to the ends of the bottom spring and the top spring, and a spring connecting block is threadedly connected inside the threaded hole, and a plurality of the spring connecting blocks are respectively Welded to the ends of the bottom spring and top spring.

Preferably, a grounding component is installed at the bottom of the bottom plate, and the grounding component includes a counterweight frame, a chute, a movable rod, a sandbag, a pull rod, a guide groove and a pad;

The counterweight frame is mounted on the bottom of the bottom plate by screws, the inner wall of the counterweight frame is provided with a chute on both sides, and movable rods are slidably installed on both sides of the inner wall of the counterweight frame, and the movable rod and the inner wall of the counterweight frame are slidably installed. Sandbags are bonded therebetween, a pull rod is fixedly installed in the middle of the movable rod, a guide groove is provided at the corresponding pull rod of the counterweight frame, and cushion blocks are adhered to the four corners of the bottom surface of the counterweight frame.

Preferably, the width of the guide groove is equal to the width of the pull rod, and a pull ring is fixedly installed at one end of the pull rod.

Preferably, a box cover is movably installed at the top of the installation box, both ends of the front and back of the box cover are connected to the installation box through locks, and a support table assembly is installed inside the box cover, and the support table assembly includes a support Column, connecting piece, connecting piece slot, storage slot, expansion board, magnetic strip and iron strip;

The four support columns are respectively hinged at the four corner positions inside the box cover, the bottom ends of the support columns are welded with connecting pieces, the rubber plates are provided with connecting piece grooves corresponding to the connecting pieces, and the outer sides of the box cover are provided with connecting pieces. There is a storage slot, both ends of the storage slot are hinged with expansion boards, magnetic strips are bonded to the expansion boards away from the connection, and iron bars are bonded to the position of the magnetic strip in the middle of the storage slot.

Preferably, the outer side of the connecting piece fits into the connecting piece groove, and the outer side of the bottom end of the supporting column contacts the inner wall of the installation box.

Preferably, a smooth rib is bonded to the top surface of the installation box, a sealing strip is bonded to the corresponding smooth rib of the box cover, and a sealing hole is evenly opened on the side of the sealing strip away from the box cover, and the sealing hole is A suction cup is installed inside.

Compared with the prior art, the present invention has the beneficial effects: the present invention has a scientific and reasonable structure, and is safe and convenient to use;

1. There is a protective adjustment component, and the combination of the side plate and the bottom plate is sleeved on the bottom of the installation box. When the installation box is hit, the installation box shakes, and the buffer spring and the curved spring sheet absorb the impact, and rotate and install with the shaft as the center. Adjust the angle of the cable fault detector to facilitate viewing, and at this time, the shaft and the buffer plate are supported, and the rubber ring on the outside of the shaft can still absorb the impact, and can also protect the installation box in a tilted state.

2. There is an alignment protection component. When wiring, fix the connection wire close to the wiring tube with the bottom wire clip. The bottom spring will pull the bottom wire clip, so that the wiring tube and the connecting wire are connected more closely, and the connecting wire is bent. After being clipped into the middle line card and the top line card in turn, the connecting line part is bent close to the curved rubber sheet. When the connecting line is pulled, it can be buffered to prevent the wire from being torn off and improve the safety of the connection.

3. There is a ground component. When the installation box is placed on the ground, the pull rod is pulled, and the pull rod drives the movable rod to move, compressing the sandbag. The sandbag is deformed near the ground, and the sand will change into different shapes according to the ground, eliminating the sandbag bottom surface and the sandbag. The space between the ground is more stable and easy to operate.

4. There is a support table assembly, which can pull the support column so that the support column is perpendicular to the ground, and the connecting piece is inserted into the connecting piece slot. At this time, the top surface of the box cover is parallel to the top surface of the cable fault detector, and the expansion board can be turned over. The top surface area of the box cover is enlarged, so that tools can be placed on the top surface of the box cover when operating the cable fault detector, which is convenient for access and operation.

5. There are smooth ribs, sealing strips, sealing holes and suction cups. When the box cover covers the top surface of the installation box, the sealing strip is deformed, and the suction cups absorb the smooth ribs, which makes the connection between the smooth ribs and the sealing strips tighter, thereby improving the The tightness of the connection prevents the entry of dust and water and improves the protection effect.

In summary, the use of protective adjustment components, smooth ribs and sealing strips for protection, buffering in the event of impact, improving the sealing effect, improving the protection effect, ensuring the normal operation of the cable fault detector, and the ground-mounted components make the placement more convenient. Stable, the alignment protection component protects the connection line, which is convenient for wiring and prevents the connection line from being damaged. The support table component is convenient for placing tools, and the operation is more convenient. Multiple structures cooperate to play a role in protection and use.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

In the attached image:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the protection adjustment assembly of the present invention;

Fig. 3 is the structural representation of the A area of Fig. 2 of the present invention;

Fig. 4 is the structural representation of B region of Fig. 2 of the present invention;

Fig. 5 is the structural representation of the wiring protection assembly of the present invention;

FIG. 6 is a schematic structural diagram of the grounding assembly of the present invention;

Fig. 7 is the installation structure schematic diagram of the expansion board of the present invention;

8 is a schematic diagram of the installation structure of the suction cup of the present invention;

Labels in the figure: 1. Installation box; 2. Cable fault detector; 3. Rubber sheet;

4. Protection adjustment components; 401, installation groove; 402, side plate; 403, bottom plate; 404, inflatable cushion; 405, connecting cylinder; 406, shaft; 407, rubber ring; 408, support ring; 409, buffer spring; 410 411, connecting pipe; 412, positioning screw; 413, buffer plate; 414, rubber strip;

5, wiring pipe;

6. Alignment protection component; 601, female threaded pipe; 602, mounting block; 603, bottom spring; 604, connecting bottom rod; 605, bottom line card; 606, top spring; 607, connecting top rod; 608, top line card ; 609, rubber anti-skid gasket; 610, curved rubber sheet; 611, center line card;

7. Threaded hole; 8. Spring connection block;

9. Floor component; 901, counterweight frame; 902, chute; 903, movable rod; 904, sandbag; 905, tie rod; 906, guide groove; 907, pad;

10. Box cover; 11. Lock;

12. Support table assembly; 1201, support column; 1202, connecting piece; 1203, connecting piece slot; 1204, receiving slot; 1205, expansion board; 1206, magnetic strip; 1207, iron bar;

13. Smooth ribs; 14. Sealing strips; 15. Sealing holes; 16. Suction cups.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

Embodiment: As shown in Figures 1-8, the present invention provides a technical solution of a fault fixed-point protection type detection device based on a distribution network, including an installation box 1, and a cable fault detector 2 is installed inside the installation box 1, and the installation box A rubber plate 3 is installed at the position between 1 and the cable fault detector 2;

A protective adjustment assembly 4 is installed on the outside of the installation box 1. The protective adjustment assembly 4 includes an installation groove 401, a side plate 402, a bottom plate 403, an inflatable cushion 404, a connecting cylinder 405, a rotating shaft 406, a rubber ring 407, a support ring 408, a buffer spring 409, Arc-shaped spring sheet 410, connecting pipe 411, positioning screw 412, buffer plate 413 and rubber strip 414;

The two installation slots 401 are respectively opened on both sides of the installation box 1, the side plates 402 are movably installed inside the installation slots 401, the two side plates 402 are respectively fixedly installed on the two ends of the top surface of the bottom plate 403, and the top of the side plate 402 is connected through the installation. Pipe 411, the interior of the connecting pipe 411 is connected with a positioning screw 412 through a thread, and a buffer plate 413 is installed at the position corresponding to the end of the screw rod in the installation groove 401. The distance from the end to the end of the connecting pipe 411 is convenient for rotating the side plate 402, and a rubber strip 414 is evenly bonded between the buffer plate 413 and the installation groove 401;

An inflatable cushion 404 is glued on the bottom surface of the installation box 1 near one end of the front, a connecting cylinder 405 is fixedly installed on the bottom surface of the installation box 1 near the inflatable cushion 404, and a rotating shaft 406 is fixedly installed at the bottom end between the two sides corresponding to the position of the connecting cylinder 405 , the outer side of the rotating shaft 406 is evenly sleeved with a rubber ring 407, the outer side of the rubber ring 407 is fixedly sleeved with a supporting ring 408, the outer diameter of the supporting ring 408 is equal to the inner diameter of the connecting cylinder 405, and the rotating shaft 406 corresponds to the rubber ring 407. The rubber ring 407 is installed inside the rubber ring groove to facilitate the installation of the connecting cylinder 405 , the top surface of the bottom plate 403 is evenly fixed with a buffer spring 409 , and the inner wall of the side plate 402 is bonded with an arc-shaped spring sheet 410 .

A wiring pipe 5 is installed on one end of the top surface of the cable fault detector 2, and an alignment protection assembly 6 is installed on the top surface of the cable fault detector 2 at the position of the wiring pipe 5. The alignment protection assembly 6 includes an inner threaded pipe 601 and a mounting block 602. , bottom spring 603, connecting bottom rod 604, bottom line card 605, top spring 606, connecting top rod 607, top line card 608, rubber anti-skid gasket 609, curved rubber sheet 610 and center line card 611;

The two inner threaded pipes 601 are respectively installed on the top surface of the cable fault detector 2 at the two sides of the wiring pipe 5. The top of the inner threaded pipe 601 is connected with a mounting block 602 through a thread, and the top of the mounting block 602 is welded with a bottom spring 603. A connecting bottom rod 604 is movably installed on the top of the spring 603, a bottom line card 605 is welded and installed between the two connecting bottom rods 604, a top spring 606 is movably installed on the top of the connecting bottom rod 604, and a connecting top rod 607 is movably installed on the top of the top spring 606. The ends of the connecting bottom rod 604 and the connecting top rod 607 are provided with threaded holes 7 at the positions corresponding to the ends of the bottom spring 603 and the top spring 606. The threaded holes 7 are connected with a spring connecting block 8 through a thread, and several spring connecting blocks 8 are welded respectively. Installed on the ends of the bottom spring 603 and the top spring 606, it is easy to disassemble the bottom spring 603 and the top spring 606, the top line card 608 is welded and installed between the two connecting top rods 607, and the inner walls of the bottom line card 605 and the top line card 608 are glued. There is a rubber anti-skid gasket 609 , an arc-shaped rubber sheet 610 is bonded between the two rubber anti-skid gaskets 609 , and a center line card 611 is bonded to the middle of the arc-shaped rubber sheet 610 .

The bottom of the bottom plate 403 is installed with a grounding assembly 9, and the grounding assembly 9 includes a counterweight frame 901, a chute 902, a movable rod 903, a sandbag 904, a pull rod 905, a guide groove 906 and a spacer 907;

The counterweight frame 901 is mounted on the bottom of the bottom plate 403 by screws. There are sliding grooves 902 on both sides of the inner wall of the counterweight frame 901, and movable rods 903 are slidably installed on both sides of the middle of the counterweight frame 901. The movable rods 903 and the inner wall of the counterweight frame 901 Sandbags 904 are bonded between them, a pull rod 905 is fixedly installed in the middle of the movable rod 903, and a guide groove 906 is opened at the counterweight frame 901 corresponding to the pull rod 905. The width of the guide groove 906 is equal to the width of the pull rod 905. A ring is used to facilitate pulling the pull rod 905 , and spacers 907 are adhered to the four corners of the bottom surface of the counterweight frame 901 .

A box cover 10 is movably installed at the top of the installation box 1. The front and back ends of the box cover 10 are connected to the installation box 1 through a lock 11. A support table assembly 12 is installed inside the box cover 10. The support table assembly 12 includes a support column 1201, connecting piece 1202, connecting piece slot 1203, receiving slot 1204, expansion board 1205, magnetic strip 1206 and iron strip 1207;

The four support columns 1201 are hinged to the inner four corners of the box cover 10, respectively. The bottom ends of the support columns 1201 are welded with connecting pieces 1202. The rubber plates 3 are provided with connecting piece slots 1203 corresponding to the connecting pieces 1202, and the outer sides of the connecting pieces 1202 fit together. The connecting piece slot 1203, the outer side of the bottom end of the support column 1201 contacts the inner wall of the installation box 1, so that the connecting piece 1202 can be inserted into the connecting piece slot 1203, so that the support column 1201 can be supported more stably. Extension plates 1205 are hinged on both ends, and magnetic strips 1206 are bonded to the extension plates 1205 away from the connection.

A smooth rib 13 is bonded to the top surface of the installation box 1, a sealing strip 14 is bonded to the corresponding smooth rib 13 of the box cover 10, and a sealing hole 15 is evenly opened on the side of the sealing strip 14 away from the box cover 10, and the sealing hole 15 is installed inside There are suction cups 16.

The working principle and use process of the present invention: place the cushion block 907 of the counterweight frame 901 on the ground, pull the pull rod 905 along the guide groove 906, at this time the sandbag 904 is compressed, the sandbag 904 is deformed at the position close to the ground, and the sandbag The sand in 904 will change into different shapes according to the ground, so as to eliminate the gap between the bottom surface of the sandbag 904 and the ground, so that the installation box 1 can be placed more stably and easy to operate;

Open the lock 11, take off the box cover 10, prepare for wiring, insert one end of the connecting wire into the wiring tube 5, and fix the position of the connecting wire close to the wiring tube 5 with the bottom wire clip 605, and the bottom spring 603 will pull the bottom wire clip 605 , so that the connection tube 5 and the connecting wire are more closely connected. After the connecting wire is bent and clamped into the center line card 611 and the top line card 608 in turn, the connecting wire part is bent and attached close to the curved rubber sheet 610. When pulling the connecting wire , the connecting wire deforms with the curved rubber sheet 610, which can be buffered to prevent the wire from being torn off and improve the safety of the connection;

The support column 1201 can be pulled so that the support column 1201 is perpendicular to the ground, and the connecting piece 1202 is snapped into the connecting piece slot 1203. At this time, the top surface of the box cover 10 is parallel to the top surface of the cable fault detector 2, and the extension board 1205 can be flipped over. The strip 1206 is separated from the iron strip 1207 to expand the placement area of the top surface of the box cover 10, which is convenient for placing tools on the top surface of the box cover 10 when operating the cable fault detector 2, which is convenient for access and operation;

The assembly composed of the side plate 402 and the bottom plate 403 is sleeved on the bottom of the installation box 1. When the installation box 1 is hit, because the bottom plate 403 is connected with the counterweight frame 901, the placement is stable, the installation box 1 shakes, and the buffer spring 409 and the arc The spring plate 410 absorbs the impact and prevents the installation box 1 from being damaged. Rotate the installation box 1 with the rotating shaft 406 as the center, rotate the positioning screw 412 to squeeze the buffer plate 413 to fix the installation box 1, and adjust the angle of the cable fault detector 2 for easy viewing. , the bottom end of the inflatable cushion 404 contacts the ground to assist support, and the rubber ring 407 on the outside of the rotating shaft 406 supports the connecting cylinder 405. When the installation box 1 shakes, the rubber ring 407 deforms, absorbs vibration, and cooperates with the rubber strip 414 in the inclined state. It can also protect the installation box 1;

After the detection is completed, when the box cover 10 covers the top surface of the installation box 1, the sealing strip 14 is deformed, and the suction cup 16 absorbs the top surface of the smooth rib 13, so that the smooth rib 13 and the sealing strip 14 are connected more closely, thereby improving the joint. Sealing, prevent dust and water from entering, improve the protection effect.

The protection adjustment component 4, the smooth rib 13 and the sealing strip 14 are used for protection, buffering in the event of impact, improving the sealing effect, improving the protection effect, and ensuring the normal operation of the cable fault detector 2. The grounding component 9 makes the placement more convenient Stable, the alignment protection component 6 protects the connection line, which is convenient for wiring and prevents the connection line from being damaged, the support table component 12 is convenient for placing tools, and the operation is more convenient.

Finally, it should be noted that the above descriptions are only preferred examples of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features therein. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A fault fixed-point protection type detection device based on a distribution network, comprising an installation box (1), characterized in that: a cable fault detector (2) is installed inside the installation box (1), and the installation box A rubber plate (3) is installed at the position between (1) and the cable fault detector (2); A protective adjustment assembly (4) is installed on the outside of the installation box (1), and the protective adjustment assembly (4) includes an installation groove (401), a side plate (402), a bottom plate (403), an inflatable cushion (404), a connection Cylinder (405), rotating shaft (406), rubber ring (407), support ring (408), buffer spring (409), curved spring sheet (410), connecting pipe (411), positioning screw (412), buffer plate (413) and rubber strip (414); The two installation grooves (401) are respectively opened on both sides of the installation box (1), the side plates (402) are movably installed inside the installation grooves (401), and the two side plates (402) are respectively fixedly installed on the side plates (402). At both ends of the top surface of the bottom plate (403), a connecting pipe (411) is installed through the top of the side surface of the side plate (402). 401) A buffer plate (413) is installed at the position corresponding to the end of the screw rod, and a rubber strip (414) is evenly bonded between the buffer plate (413) and the installation groove (401); An inflatable cushion (404) is adhered to the bottom surface of the installation box (1) near one end of the front, and a connecting cylinder (405) is fixedly installed on the bottom surface of the installation box (1) close to the inflatable cushion (404). A rotating shaft (406) is fixedly installed at the position of the bottom end between the side surfaces corresponding to the connecting cylinder (405), the outer side of the rotating shaft (406) is uniformly and movably sleeved with a rubber ring (407), and the outer side of the rubber ring (407) is fixedly sleeved There is a support ring (408), a buffer spring (409) is evenly fixed on the top surface of the bottom plate (403), and an arc-shaped spring sheet (410) is adhered to the inner wall of the side plate (402). 2 . The fault fixed-point protection detection device based on power distribution network according to claim 1 , wherein the outer diameter of the support ring ( 408 ) is equal to the inner diameter of the connecting cylinder ( 405 ), and the rotating shaft ( 406 ) ) corresponding to the rubber ring (407) is provided with a rubber ring groove, and the rubber ring (407) is installed inside the rubber ring groove. 3 . The fault fixed-point protection detection device based on distribution network according to claim 1 , wherein the buffer plate ( 413 ) is arc-shaped, and the radius of the buffer plate ( 413 ) is equal to that on the side plate. 4 . (402) The distance from the end of the rotating shaft (406) on the side to the end of the connecting pipe (411). 4. A fault fixed-point protection type detection device based on distribution network according to claim 1, characterized in that, a wiring pipe (5) is installed on one end of the top surface of the cable fault detector (2), and the An alignment protection assembly (6) is installed on the top surface of the cable fault detector (2) at the position of the wiring pipe (5). The alignment protection assembly (6) includes an inner threaded pipe (601), an installation block (602), Bottom spring (603), connecting bottom rod (604), bottom wire clip (605), top spring (606), connecting top rod (607), top wire clip (608), rubber anti-skid gasket (609), curved rubber sheet (610) and midline card (611); The two internally threaded pipes (601) are respectively installed on the top surface of the cable fault detector (2) at positions on both sides of the wiring pipe (5), and the tops of the internally threaded pipes (601) are threadedly connected with mounting blocks ( 602), a bottom spring (603) is welded on the top of the mounting block (602), a connecting bottom rod (604) is movably mounted on the top of the bottom spring (603), and two connecting bottom rods (604) are welded between the two bottom springs (604). A bottom line card (605) is installed, a top spring (606) is movably installed on the top of the connecting bottom rod (604), and a connecting top rod (607) is movably mounted on the top of the top spring (606). The top line card (608) is welded and installed between the rods (607), and the inner walls of the bottom line card (605) and the top line card (608) are bonded with rubber anti-skid gaskets (609). An arc-shaped rubber sheet (610) is adhered between the sheets (609), and a center line card (611) is adhered to the middle of the arc-shaped rubber sheet (610). 5 . The fault fixed-point protection detection device based on a distribution network according to claim 4 , wherein the ends of the connecting bottom rod (604) and the connecting top rod (607) correspond to bottom springs (603) 5 . Both the top spring (606) and the top spring (606) are provided with threaded holes (7), the threaded holes (7) are internally connected with spring connecting blocks (8) through threads, and a plurality of the spring connecting blocks (8) are respectively welded and installed. on the ends of the bottom spring (603) and the top spring (606). 6. A fault fixed-point protection type detection device based on distribution network according to claim 1, characterized in that, a grounding component (9) is installed at the bottom of the bottom plate (403), and the grounding component (9) ) includes a counterweight frame (901), a chute (902), a movable rod (903), a sandbag (904), a pull rod (905), a guide groove (906) and a spacer (907); The counterweight frame (901) is mounted on the bottom of the bottom plate (403) through screws, chute grooves (902) are provided on both sides of the inner wall of the counterweight frame (901), and both sides of the middle of the counterweight frame (901) are A movable rod (903) is slidably installed, a sandbag (904) is bonded between the movable rod (903) and the inner wall of the counterweight frame (901), and a tension rod (905) is fixedly installed in the middle of the movable rod (903), The counterweight frame (901) is provided with a guide groove (906) corresponding to the pull rod (905), and spacers (907) are adhered to the four corners of the bottom surface of the counterweight frame (901). 7 . The detection device for fault location based on distribution network according to claim 6 , wherein the width of the guide groove ( 906 ) is equal to the width of the pull rod ( 905 ), and the pull rod ( 905 ) A pull ring is fixedly installed at one end. 8 . The fault fixed-point protection type detection device based on distribution network according to claim 1 , wherein a box cover (10) is movably installed at the top of the installation box (1), and the box cover (10) is movably installed at the top of the installation box (1). ) Both ends of the front and the back are connected to the installation box (1) through a lock (11), and a support table assembly (12) is installed inside the box cover (10), and the support table assembly (12) includes a support column ( 1201), connecting piece (1202), connecting piece slot (1203), storage slot (1204), expansion board (1205), magnetic strip (1206) and iron strip (1207); The four support columns (1201) are respectively hinged at four corner positions inside the box cover (10). The bottom ends of the support columns (1201) are welded with connecting pieces (1202), and the rubber plates (3) are connected correspondingly. A connecting piece slot (1203) is provided at each of the sheets (1202), a receiving groove (1204) is formed on the outer side of the box cover (10), and both ends of the receiving groove (1204) are hinged with an expansion plate (1205), so A magnetic strip (1206) is attached to the expansion board (1205) away from the connection, and an iron strip (1207) is attached to the middle of the receiving slot (1204) corresponding to the position of the magnetic strip (1206). 9 . The detection device for fault location protection based on a distribution network according to claim 8 , wherein the outer side of the connecting piece ( 1202 ) fits into the connecting piece groove ( 1203 ), and the support column ( 1201 ) The outer side of the bottom end contacts the inner wall of the installation box (1). 10 . The fault fixed-point protection type detection device based on the distribution network according to claim 8 , wherein the top surface of the installation box ( 1 ) is bonded with a smooth rib ( 13 ), and the box cover is 10 . (10) A sealing strip (14) is bonded to the corresponding smooth rib (13), and a sealing hole (15) is evenly opened on the side of the sealing strip (14) away from the box cover (10), and the sealing hole (15) ) has a suction cup (16) installed inside.

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