Electric power engineering installation protection device

Abstract

The utility model discloses an electric power engineering installation protection device, and relates to the technical field of electric power engineering. The outer wall of the protective outer pipe is detachably connected with a supporting seat, and the outer side wall, away from the supporting seat, of the protective outer pipe is in threaded connection with a sealing ring through a bolt. And the protection assembly is used for protecting the cable from being damaged in the cable laying process, and the protection assembly is connected with the protection outer pipe. According to the utility model, the cable is installed at the middle position of the protective outer tube, then the protective outer tube is fixed in the cable pit by using the supporting seat, and the sealing ring is arranged at the interface of the protective outer tube to increase the sealing performance, so that the internal cable harness is prevented from being eroded by water vapor; under the action of the protection assembly, laying of the cable can adapt to different use scenes, additional molds do not need to be arranged, meanwhile, the cable harness is protected, the phenomenon of electric leakage caused by aging or external impact due to the fact that the cable harness is exposed outside is avoided, the practicability of cable laying is improved, and better use prospects can be brought.

Description

Technical Field

[0001] The utility model relates to the technical field of power engineering, in particular to an installation protection device for power engineering. Background Art

[0002] Power engineering, that is, engineering related to the production, transmission, and distribution of electric energy. In a broad sense, it also includes engineering in which electricity is used as power and energy in various fields. At the same time, it can be understood as the power transmission and transformation project for new customer access, and cable installation is an important part of power engineering. Power engineering usually includes multiple links such as power generation, power transmission, power transformation, power distribution, and power consumption. Cable installation mainly involves the power distribution and power consumption links, which includes work such as cable laying, connection, testing, and maintenance to ensure that the power system can safely and reliably transmit and distribute electric energy.

[0003] The current power cables are cables used for transmitting and distributing electric energy, and are cable products used for transmitting and distributing high-power electric energy in the main lines of the power system. At present, most of the protection devices for power cables have relatively simple structures. Usually, they are protected by using a protective housing outside the cable or sleeving a rigid sheath. Due to different required power engineering projects, the diameter sizes of the power cable models used are also different, making the existing protection devices unable to be adjusted and adapted to cables with different diameters. It may be necessary for personnel to select a variety of protection devices of different sizes, thus increasing their usage costs and reducing the practicality of the devices.

[0004] Chinese Patent Document CN221783794U discloses a power cable protection device, including an installation box. A limiting groove is opened at the top of the installation box. Two limiting blocks are symmetrically arranged in the limiting groove at the top of the installation box, and the limiting blocks are adapted to the limiting groove. The top of the limiting block is fixedly connected with a first arc seat. A second arc seat is arranged above the first arc seat. Damping rods are fixedly installed on the inner arc surfaces of the two first arc seats and the two second arc seats. The other ends of the plurality of damping rods are fixedly installed on the outer arc surfaces of the adjacent arc plates. However, there are still the following defects in the implementation process:

[0005] Although the device in the above document can buffer the force through multiple damping rods and springs to increase the buffering performance of the arc plate, and effectively protect the cable line in cooperation with the soft pad, and the anti-slip pattern can facilitate personnel to hold the handle and the rotary handle to reduce the occurrence of slipping, the device in the above document cannot adapt to the scenario at the corner. During the cable laying process, there will be a situation of corner laying. At present, most of them adopt a rigid structure that is divided into upper and lower parts and is connected by elastic components to protect the cable. However, this method requires preparing corresponding molds according to the corner scenario during the corner scenario, increasing the cost of cable laying. If no mold protection is set at the corner, the cable will be exposed, and the aging after long-term use will increase the risk of electric shock. Summary of the Invention

[0006] The purpose of the utility model is to provide a protection device for electrical engineering installation, so as to solve the problem that the cable cannot be protected when laid in a corner scenario as mentioned in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0008] A protection device for electrical engineering installation, including a protective outer tube; a support seat is detachably connected to the outer wall of the protective outer tube, and a sealing ring is screwed to the outer side wall of the protective outer tube away from the support seat through bolts; a protection component, which is used to protect the cable from damage during the cable laying process, and the protection component is connected to the protective outer tube.

[0009] Adopting the above technical solution, the sealing performance is increased at the interface of the protective outer tube through the sealing ring in this solution, avoiding the internal cable harness from being eroded by water vapor. Under the action of the protection component, the cable laying can adapt to different usage scenarios, and there is no need to set up additional molds, increasing the practicability of cable laying.

[0010] A further improvement of the technical solution of the utility model lies in: the protection component includes a plurality of buffer sheets fixedly connected to the inner side wall of the protective outer tube, fixing tubes are slidably connected to the outer side walls of the buffer sheets, fixing blocks are symmetrically installed on the outer walls of the fixing tubes, a limiting plate is fixedly connected to the end of the fixing tube away from the fixing block, the fixing block and the limiting plate are slidably connected, a plurality of cross-shaped slot holes are opened on the side of the fixing tube close to the fixing block, and a plurality of cross-shaped inserting rods adapted to the shape and contour of the cross-shaped slot holes are fixedly connected to the side of the fixing tube close to the limiting plate.

[0011] Adopting the above technical solution, the fixing tube is of a rigid structure in this solution, and each fixing tube is connected by components such as fixing blocks and limiting plates. One end of the limiting plate is an arc surface bent outward. When in a corner scenario, the staff can press the bent part of the limiting plate and pull the fixing tube connected to the limiting plate in the opposite direction, so that the limiting plate slides out from the notch of the fixing block, realizing the separation between the two fixing tubes.

[0012] A further improvement of the technical solution of the utility model lies in: the buffer sheets are arranged in an arc shape, a plurality of buffer sheets are distributed in a circumferential array, and an opening is arranged at the top of the fixing tube.

[0013] Adopting the above technical solution, the buffer sheets in this solution make the fixing tubes installed at the middle position of the protective outer tube, and there is a gap between the outer wall of the fixing tube and the inner wall of the protective outer tube, avoiding the heat of the cable from not being able to dissipate due to the close fit between the protective outer tube and the fixing tube.

[0014] A further improvement of the technical solution of the present utility model lies in that the cross-shaped insertion rod is slidably connected to the cross-shaped slot.

[0015] With the above technical solution, in this solution, for the butt joint between the two fixed pipes, the cross-shaped insertion rod needs to be aligned with the cross-shaped slot and inserted. During this process, the arc surface of the limiting plate can pass through the notch of the fixed block under the extrusion of the fixed block, and after the two fixed pipes are completely fitted, the arc surface of the limiting plate abuts against one side of the fixed block, increasing the stability of the connection of the fixed pipes.

[0016] A further improvement of the technical solution of the present utility model lies in that one side of the sealing ring away from the protective outer pipe is bolted with an adapter plate, and one side of the adapter plate is fixedly connected with a corrugated pipe.

[0017] With the above technical solution, in this solution, the corrugated pipe is connected to the sealing ring through the adapter plate, and the sealing ring is arranged at the interface of the protective outer pipe. When in a corner scenario, after the positions of the two fixed pipes are fixed, the corrugated pipe deforms correspondingly according to the laying positions of the two fixed pipes, and the sealing performance at the cable corner is ensured.

[0018] A further improvement of the technical solution of the present utility model lies in that a protective inner pipe is inserted into the inner side wall of the fixed pipe. A clamping post is fixedly connected to the outer wall of the protective inner pipe. A plurality of abutting pieces are fixedly connected to the inner side wall of the protective inner pipe. Clamping pieces are symmetrically arranged on the inner side wall of the protective inner pipe. Anti-slip pieces are fixedly connected to the outer side walls of the clamping pieces. A bent portion is fixedly connected to the opening of the protective inner pipe, and the bent portion is arranged in an arc shape.

[0019] With the above technical solution, in this solution, the top of the bent portion first contacts the outer wall of the cable and deflects to both sides under the extrusion force of the cable, so that the cable enters the inside of the protective inner pipe. After the cable enters, the bent portion resets, and its bottom then fits against the outer wall of the cable. At this time, both the abutting pieces and the clamping pieces fit against the outer wall of the cable to fix the position of the cable.

[0020] A further improvement of the technical solution of the present utility model lies in that the clamping posts are symmetrically arranged, the clamping posts and the protective inner pipe are of an integral structure, and the side of the clamping piece away from the fixed pipe is arranged in an arc shape.

[0021] With the above technical solution, in this solution, the clamping posts arranged on both sides of the protective inner pipe are adapted to the shape profile of the fixed pipe, increasing the stability of the connection between the protective inner pipe and the fixed pipe.

[0022] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0023] 1. The utility model provides a protective device for power engineering installation, which increases the sealing performance at the interface of the protective outer tube through a sealing ring to prevent the internal cable harness from being corroded by water vapor. Under the action of the protective component, the laying of the cable can adapt to different usage scenarios without setting up additional molds, thereby increasing the practicality of cable laying.

[0024] 2. The utility model provides a power engineering installation protection device, in which a fixed tube is set as a rigid structure, and each fixed tube is connected by components such as a fixed block and a limit plate. One end of the limit plate is an arc surface bent outward. When in a corner scene, the staff can press the bend of the limit plate and pull the fixed tube connected to the limit plate in the opposite direction, so that the limit plate slides out of the groove of the fixed block, thereby realizing the separation between the two fixed tubes. At this time, the position of the fixed tube can be placed according to the cable laying scene.

[0025] 3. The utility model provides a protective device for power engineering installation. By matching the shape contour of the clamping columns arranged on both sides of the protective inner tube with the fixed tube, the stability of the connection between the protective inner tube and the fixed tube is increased. During use, the opening of the protective inner tube is upward. At this time, the cable is inserted into the protective inner tube from top to bottom. The abutment sheet and the clamping sheet are both in contact with the outer wall of the cable to fix the position of the cable so that the cable is located in the middle of the protective inner tube, thereby ensuring the heat dissipation of the cable. At the same time, the clamping sheet is an inwardly bent arc surface, which is more in line with the shape contour of the cable. The anti-slip sheet on its surface prevents the cable from being displaced. The abutment sheet and the clamping sheet are both made of flexible materials, which can play a buffering role when the cable is hit by the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing ring and the bellows in the utility model;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective outer tube and the sealing ring in the utility model;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixed tube and the protective inner tube in the utility model;

[0031] Figure 5 This is a schematic diagram of the matching structure of the fixed tube and the protective inner tube in the utility model;

[0032] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle;

[0033] Figure 7 This is a schematic diagram of the overall structure for protecting the inner tube in the present utility model.

[0034] In the figure: 1. Protective outer tube; 2. Support base; 3. Bellows; 4. Sealing ring; 5. Fixed tube; 6. Connecting plate; 7. Buffer sheet; 8. Fixed block; 9. Limiting plate; 10. Protective inner tube; 11. Clamping post; 12. Cross slot hole; 13. Clamping sheet; 14. Contact sheet; 15. Bending part; 16. Cross inserting rod; 17. Anti-slip sheet. Specific embodiments

[0035] The following further elaborates on the present utility model in conjunction with embodiments:

[0036] Embodiment 1

[0037] As Figure 1 shown, the present utility model provides an installation protection device for power engineering, including a protective outer tube 1; a support base 2 is detachably connected to the outer wall of the protective outer tube 1, and a sealing ring 4 is bolted to the outer side wall of the protective outer tube 1 away from the support base 2; a protection component, which is used to protect the cable from damage during the cable laying process, and the protection component is connected to the protective outer tube 1.

[0038] Since cable installation is an important part of power engineering, during the cable laying process, there will be scenarios where cables are laid at corners. Workers install a protective tube on the cable surface to protect the cable, preventing the cable from aging or being mechanically damaged by the outside world.

[0039] In this embodiment, the cable is installed at the middle position of the protective outer tube 1, and then the protective outer tube 1 is fixed in the cable pit by using the support base 2. The sealing ring 4 is used to increase the sealing performance at the interface of the protective outer tube 1, preventing the internal cable harness from being eroded by water vapor. Under the action of the protection component, the cable laying can adapt to different usage scenarios, and there is no need to set up additional molds, increasing the practicality of cable laying.

[0040] Embodiment 2

[0041] As Figure 3 、 Figure 5 and Figure 6As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the protection component includes a plurality of buffer pieces 7 fixedly connected to the inner side wall of the protection outer tube 1. The outer side walls of the buffer pieces 7 are all slidably connected with fixed tubes 5. Fixed blocks 8 are symmetrically installed on the outer walls of the fixed tubes 5. One end of the fixed tube 5 far from the fixed block 8 is fixedly connected with a limit plate 9. The fixed block 8 and the limit plate 9 are slidably connected. A plurality of cross slot holes 12 are opened on one side of the fixed tube 5 close to the fixed block 8. A plurality of cross inserting rods 16 adapted to the shape and contour of the cross slot holes 12 are fixedly connected to one side of the fixed tube 5 close to the limit plate 9. The buffer pieces 7 are arranged in an arc shape, and a plurality of buffer pieces 7 are distributed in a circumferential array. An opening is provided at the top of the fixed tube 5, and the cross inserting rods 16 and the cross slot holes 12 are slidably connected.

[0042] In this embodiment, by providing the buffer pieces 7, the fixed tubes 5 are installed at the middle position of the protection outer tube 1, and there is a gap between the outer wall of the fixed tube 5 and the inner wall of the protection outer tube 1, so as to prevent the heat of the cable from not being dissipated due to the close fit of the protection outer tube 1 and the fixed tube 5.

[0043] Specifically, the fixed tube 5 is of a rigid structure. Each fixed tube 5 is connected by components such as fixed blocks 8 and limit plates 9. One end of the limit plate 9 is an arc surface bent outward. When in a corner scenario, the staff can press the bent part of the limit plate 9 and pull the fixed tube 5 connected to the limit plate 9 in the opposite direction, so that the limit plate 9 slides out from the notch of the fixed block 8, realizing the separation between the two fixed tubes 5. At this time, the position of the fixed tube 5 can be placed according to the cable laying scenario. It should be noted that for the docking between the two fixed tubes 5, the cross inserting rods 16 only need to be aligned with the cross slot holes 12 and inserted. During this process, the arc surface of the limit plate 9 can pass through the notch of the fixed block 8 under the extrusion of the fixed block 8, and after the two fixed tubes 5 are completely fitted, the arc surface of the limit plate 9 abuts against one side of the fixed block 8, increasing the stability of the connection of the fixed tube 5.

[0044] Embodiment 3

[0045] As Figure 1 and Figure 2 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, one side of the sealing ring 4 far from the protection outer tube 1 is bolted with an adapter plate 6, and a corrugated pipe 3 is fixedly connected to one side of the adapter plate 6.

[0046] In this embodiment, the corrugated pipe 3 is connected to the sealing ring 4 through the adapter plate 6. The sealing ring 4 is arranged at the interface of the protection outer tube 1. When in a corner scenario, after the positions of the two fixed tubes 5 are fixed, the corrugated pipe 3 deforms correspondingly according to the laying positions of the two fixed tubes 5, and the sealing performance at the cable corner is ensured.

[0047] Embodiment 4

[0048] As Figure 4 , Figure 5 and Figure 7 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a protective inner tube 10 is inserted into the inner side wall of the fixed tube 5. A clamping post 11 is fixedly connected to the outer wall of the protective inner tube 10. A plurality of abutting pieces 14 are fixedly connected to the inner side wall of the protective inner tube 10. Clamping pieces 13 are symmetrically arranged on the inner side wall of the protective inner tube 10. Anti-slip pieces 17 are fixedly connected to the outer side walls of the clamping pieces 13. A bending portion 15 is fixedly connected to the opening of the protective inner tube 10. The bending portion 15 is arranged in an arc shape. The clamping posts 11 are symmetrically arranged. The clamping posts 11 and the protective inner tube 10 are of an integral structure. The side of the clamping piece 13 away from the fixed tube 5 is arranged in an arc shape.

[0049] In this embodiment, the shape contours of the clamping posts 11 arranged on both sides of the protective inner tube 10 and the fixed tube 5 are adapted to each other, increasing the stability of the connection between the protective inner tube 10 and the fixed tube 5. It should be noted that there is an opening at the top of the protective inner tube 10. The bending portion 15 is connected to the edge of the opening of the protective inner tube 10. The bending portion 15 and the protective inner tube 10 are of an integral structure.

[0050] During the use process, make the opening of the protective inner tube 10 face upward. At this time, insert the cable into the protective inner tube 10 from top to bottom. The top of the bending portion 15 first contacts the outer wall of the cable and deflects to both sides under the extrusion force of the cable, so that the cable enters the inside of the protective inner tube 10. After the cable enters, the bending portion 15 resets, and its bottom fits against the outer wall of the cable. At this time, the abutting pieces 14 and the clamping pieces 13 both fit against the outer wall of the cable to fix the position of the cable, making the cable located at the middle position of the protective inner tube 10, ensuring the heat dissipation of the cable. At the same time, the clamping piece 13 is in an arc surface that bends inward, more conforming to the shape contour of the cable. The anti-slip piece 17 on its surface prevents the cable from shifting. It should be noted that both the abutting piece 14 and the clamping piece 13 are made of flexible materials and can play a buffering role when the cable is subjected to external impacts.

[0051] After the cable is installed at the middle position of the protective inner tube 10 from top to bottom, turn the protective inner tube 10 over again and make the opening of the fixed tube 5 face upward. Insert the protective inner tube 10 into the fixed tube 5 from top to bottom. At this time, the clamping post 11 is snapped into the arc-shaped groove on the inner side wall of the fixed tube 5. The opening of the fixed tube 5 is a rounded corner that bends outward, facilitating the insertion of the protective inner tube 10.

[0052] In this structure, the protective inner tube 10 and the corrugated pipe 3 can deform correspondingly according to the cable laying scenario, making it more practical.

[0053] The working principle of the power engineering installation protection device will be specifically described below.

[0054] like Figures 1 - 7 As shown, when in use, the opening of the protective inner tube 10 is firstly turned upwards, and the cable is inserted into the protective inner tube 10 from top to bottom. The top of the bent portion 15 first contacts the outer wall of the cable, and deviates to both sides under the squeezing force of the cable, so that the cable enters the interior of the protective inner tube 10. After the cable enters, the bent portion 15 is reset, and its bottom is in contact with the outer wall of the cable. At this time, the abutment piece 14 and the clamping piece 13 are both in contact with the outer wall of the cable, and the position of the cable is fixed, so that the cable is located in the middle position of the protective inner tube 10, ensuring the heat dissipation of the cable, and at the same time the clamping piece 13 is inward. The curved surface is more in line with the shape of the cable. The anti-slip sheet 17 on the surface prevents the cable from being displaced. The abutment sheet 14 and the clamping sheet 13 are both made of flexible materials, which can play a buffering role when the cable is hit by the outside. After the cable is installed in the middle position of the protective inner tube 10 from top to bottom, the protective inner tube 10 is turned over again, and the opening of the fixed tube 5 is upward, and the protective inner tube 10 is inserted into the fixed tube 5 from top to bottom. At this time, the clamping column 11 is clamped into the arc groove of the inner wall of the fixed tube 5, and the opening of the fixed tube 5 is rounded outward, which is convenient for inserting the protective inner tube 10;

[0055] Each fixed tube 5 is connected by a fixed block 8 and a limit plate 9. One end of the limit plate 9 is an arc surface bent outward. When in a corner scene, the staff can press the bend of the limit plate 9 and pull the fixed tube 5 connected to the limit plate 9 in the opposite direction, so that the limit plate 9 slides out of the notch of the fixed block 8 to achieve the separation between the two fixed tubes 5. At this time, the position of the fixed tube 5 can be placed according to the cable laying scene. The docking between the two fixed tubes 5 requires the cross rod 16 to be aligned with the cross slot 12 and inserted In this process, the arc surface of the limit plate 9 can pass through the notch of the fixed block 8 under the extrusion of the fixed block 8, and after the two fixed tubes 5 are fully fitted, the arc surface of the limit plate 9 contacts one side of the fixed block 8, increasing the stability of the connection of the fixed tube 5. The corrugated tube 3 is connected to the sealing ring 4 through the connecting plate 6. The sealing ring 4 is set at the interface of the protective outer tube 1. When it is in a corner scene, after the positions of the two fixed tubes 5 are fixed, the corrugated tube 3 is deformed accordingly according to the laying positions of the two fixed tubes 5, and the sealing at the cable corner is ensured. Finally, the protective outer tube 1 is fixed in the cable pit by the support seat 2, and the sealing of the protective outer tube 1 is increased by the sealing ring 4 at the interface to prevent the internal cable harness from being eroded by water vapor.

[0056] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. Power engineering installation protection device, including a protection outer tube (1); characterized in that: The outer wall of the protective outer tube (1) is detachably connected to a support seat (2), and a sealing ring (4) is screwed on the outer wall of the protective outer tube (1) away from the support seat (2) via bolts; A protection component is provided, wherein the protection component is used to protect the cable from damage during the cable laying process, and the protection component is connected to the protective outer tube (1).

2. The power engineering installation protection device according to claim 1, characterized in that: The protection component comprises a plurality of buffer plates (7) fixedly connected to the inner wall of the protective outer tube (1), the outer wall of each of the buffer plates (7) is slidably connected to a fixed tube (5), the outer wall of the fixed tube (5) is symmetrically mounted with a fixed block (8), one end of the fixed tube (5) away from the fixed block (8) is fixedly connected to a limiting plate (9), the fixed block (8) and the limiting plate (9) are slidably connected, a plurality of cross slots (12) are formed on a side of the fixed tube (5) close to the fixed block (8), and a plurality of cross rods (16) whose shapes and contours match those of the cross slots (12) are fixedly connected to a side of the fixed tube (5) close to the limiting plate (9).

3. The power engineering installation protection device according to claim 2, characterized in that: The buffer sheet (7) is arranged in an arc shape, and a plurality of the buffer sheets (7) are distributed in a circular array, and an opening is arranged at the top of the fixed tube (5).

4. The power engineering installation protection device according to claim 3, characterized in that: The cross insertion rod (16) and the cross slot hole (12) are slidably connected.

5. The power engineering installation protection device according to claim 4, characterized in that: A connecting plate (6) is screwed to the side of the sealing ring (4) away from the protective outer tube (1) via bolts, and a corrugated tube (3) is fixedly connected to one side of the connecting plate (6).

6. The power engineering installation protection device according to claim 5, characterized in that: A protective inner tube (10) is inserted into the inner wall of the fixed tube (5), a clamping column (11) is fixedly connected to the outer wall of the protective inner tube (10), a plurality of abutment sheets (14) are fixedly connected to the inner wall of the protective inner tube (10), clamping sheets (13) are symmetrically arranged on the inner wall of the protective inner tube (10), and anti-slip sheets (17) are fixedly connected to the outer walls of the clamping sheets (13), and a bending portion (15) is fixedly connected to the opening of the protective inner tube (10), and the bending portion (15) is arranged in an arc shape.

7. The power engineering installation protection device according to claim 6, characterized in that: The clamping columns (11) are symmetrically arranged, the clamping columns (11) and the protective inner tube (10) are an integrated structure, and the clamping piece (13) is arranged in an arc shape on a side away from the fixing tube (5).

Images