Prefabricated cover plate type cable square well structure for electric power engineering

Abstract

The utility model relates to the technical field of cable wells, in particular to an electric power engineering prefabricated cover plate type cable square well structure which comprises a square well body and a well lid covering the top of the square well body. The side, provided with the cable preformed hole, of the square well body is provided with an embedding groove and a supporting groove located at the bottom of the embedding groove, a supporting frame is rotationally connected into the embedding groove, a supporting rod is rotationally connected to the top of the supporting frame, a supporting block is slidably connected into the supporting groove, and the free end of the supporting rod is rotationally connected with the supporting block. The supporting frame and the cable preformed hole are located on the same horizontal plane. According to the utility model, the supporting frame rotatably connected in the embedding groove is pulled out, so that the supporting frame supports the cable, the structure does not need an installation worker to use a tool to assist in installation, only the supporting frame needs to be laid down, and the supporting frame can be placed in the embedding groove through turning when the structure is not used, so that the activity space of the installation worker is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wells, in particular to a prefabricated cover plate type cable square well structure for electric power engineering. Background Art

[0002] Cable square shafts can be prefabricated in factories and easily transported to construction sites for installation, thereby improving construction efficiency. However, the cables passing through traditional cable shafts are generally suspended in the shaft, which can easily cause damage to the cables. In addition, cable shafts are buried underground and are easily affected by moisture for a long time, causing corrosion to the cables and covers.

[0003] Based on the above problems, the existing patent with publication number CN216920448U discloses a prefabricated cover-type cable square well structure for power engineering. The fixing plate is fixed by the cooperation of the fixing nut and the fixing bolt so that the main body of the cover-type cable square well is fixed. When the cable enters the cable clamping device through the cable port, the clamp is driven by the telescopic rod to clamp and position the cable, thereby achieving the effect of improving the utilization efficiency of the cover-type cable square well.

[0004] However, when implementing the above-mentioned prefabricated cover-type cable square shaft structure for power engineering, it was found that there were at least the following problems: prefabricated square shafts are generally small in size, such as well swords, which are more troublesome to produce, transport and bury. After the cable is perforated, when workers enter the square shaft to operate the cable clamping device, the workers' activity space is relatively narrow, which makes it inconvenient for workers to use tools for installation, resulting in slow installation efficiency and difficulty for subsequent workers to go down the shaft to repair the cables. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a prefabricated cover-type cable square shaft structure for power engineering, which can facilitate workers to install and repair, so as to solve the problem that the workers' activity space in the prior art is relatively narrow, which makes it inconvenient for workers to use tools for installation, resulting in slow installation efficiency and difficulty for subsequent workers to go down the shaft to repair the cables.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides a prefabricated cover-type cable square well structure for an electric power engineering project, comprising: a square well body and a well cover covering the top of the square well body, cable reserved holes are opened on both sides of the square well body, and the square well body is provided with an embedding groove and a support groove located at the bottom of the embedding groove on the side where the cable reserved hole is opened, a support frame is rotatably connected in the embedding groove, a support rod is rotatably connected to the top of the support frame, a support block is slidably connected in the support groove, the free end of the support rod is rotatably connected to the support block, and when the support block abuts against the bottom of the support groove, the support frame and the cable reserved hole are in the same horizontal plane.

[0009] Optionally, a movable hole is opened on the free end of the support frame, and a placement rod is slidably connected in the movable hole.

[0010] Optionally, a semicircular placing piece is fixed to one end of the placing rod protruding from the movable hole, and an opening side of the placing piece faces the manhole cover.

[0011] Optionally, a plurality of spaced-apart steel balls are embedded on one side of the upper opening of the placement member, and the steel balls are rotatably connected to the placement member and at least partially protrude from the placement member.

[0012] Optionally, the support frame is provided with a plurality of limiting holes connected to the movable holes, the placing rod is provided with a limiting groove matched with the limiting holes, a limiting member is slidably connected in the limiting groove, a spring is provided between the limiting member and the limiting groove, and both ends of the spring are respectively fixed to the limiting groove and the limiting member.

[0013] Optionally, lifting protrusions are provided on at least two sides of the outer wall of the square well body, and a lifting notch is provided at the bottom of the lifting protrusion.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a prefabricated cover-type cable square well structure for power engineering, which has the following beneficial effects:

[0016] 1. The utility model pulls out the support frame that is rotatably connected in the fitting groove so that the support frame supports the cable. This structure does not require the installation worker to use tools to assist in installation. The support frame only needs to be laid down, and the support frame can be placed in the fitting groove by turning when it is not needed, thereby increasing the activity space of the installation worker. This solves the problem in the prior art that when the installation worker enters the square well to operate the cable clamping device, the worker's activity space is relatively narrow, which makes it inconvenient for the worker to use tools for installation, resulting in slow installation efficiency and difficulty for subsequent workers to go down the well to repair the cable;

[0017] 2. The utility model provides a placement rod and a placement piece fixed to the free end of the placement rod, and the support length of the support frame can be extended by stretching the placement rod, and the placement piece can prevent the cable from falling off the support frame;

[0018] 3. The utility model provides a lifting protrusion and a lifting notch, so that the lifting rope of the crane can be buckled into the lifting notch to facilitate the lifting work of the crane, and it is also convenient for the installation workers to take out the lifting rope after the subsequent lifting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 The schematic diagram of the internal structure of the square well main body is shown;

[0021] Figure 3 A schematic diagram of a part of the structure is shown;

[0022] Figure 4 A schematic diagram of the planing structure of the support frame and the placement rod is shown.

[0023] In the figure: 1. Square well body; 2. Well cover; 3. Cable reserved hole; 4. Fitting groove; 5. Support groove; 6. Support frame; 7. Support rod; 8. Support block; 9. Movable hole; 10. Placement rod; 11. Placement piece; 12. Steel ball; 13. Limiting hole; 14. Limiting groove; 15. Limiting piece; 16. Spring; 17. Lifting protrusion; 18. Lifting notch. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: See Figures 1 to 4 According to an embodiment of the utility model, a technical solution is provided: a prefabricated cover-type cable square shaft structure for power engineering, comprising: a square shaft body 1 and a shaft cover 2 covering the top of the square shaft body 1, cable reserved holes 3 are opened on both sides of the square shaft body 1, and a fitting groove 4 and a support groove 5 located at the bottom of the fitting groove 4 are opened on the side of the square shaft body 1 where the cable reserved hole 3 is opened, a support frame 6 is rotatably connected in the fitting groove 4, a support rod 7 is rotatably connected to the top of the support frame 6, a support block 8 is slidably connected in the support groove 5, and the free end of the support rod 7 is rotatably connected to the support block 8. When the support block 8 is against the bottom of the support groove 5, the support frame 6 and the cable reserved hole 3 are in the same horizontal plane.

[0026] The prefabricated cover-type cable square well structure of the power engineering adopts the above-mentioned structure. When it is necessary to pre-bury and insert cables, the square well body 1 can be hoisted into the pre-dug pit by a crane, and then the cable is passed through the cable reserved hole 3 on one side of the square well body 1, and the support frame 6 rotatably connected to the embedded groove 4 is pulled out, so that the support block 8 rotatably connected to the support rod 7 is abutted against the bottom of the support groove 5, so that the support rod 7 supports the support frame 6, and the cable passing through the cable reserved hole 3 is placed on the support frame 6, so that the support frame 6 supports the cable, and the cable is inserted into the cable reserved hole 3 on the other side of the square well body 1. This structure does not require the installation worker to use tools to assist in installation. It only needs to lay down the support frame 6, and when it is not needed, the support frame 6 can be placed in the embedded groove 4 by turning, thereby increasing the activity space of the installation worker, and solving the problem that when the installation worker enters the square well to operate the cable clamping device in the prior art, the worker's activity space is relatively narrow, which is inconvenient for the worker to use tools for installation, resulting in slow installation efficiency and subsequent workers going down the well to repair the cable.

[0027] In this embodiment, a movable hole 9 is opened on the free end of the support frame 6, and a placement rod 10 is slidably connected in the movable hole 9. By setting the placement rod 10 slidably connected to the support frame 6, in some cases, the cable reserved hole 3 is not completely located at the center of one side of the square well body 1, and may deviate to both sides. Therefore, the support length of the support frame 6 can be extended by telescoping the placement rod 10, thereby increasing the fault tolerance of the support frame 6.

[0028] In this embodiment, a semicircular placing piece 11 is fixed to one end of the placing rod 10 protruding from the movable hole 9, and the opening side of the placing piece 11 faces the manhole cover 2. By providing the placing piece 11, it can be prevented that after the cable installation is completed, when subsequent workers climb out of the square well body 1, they accidentally touch the cable and cause the cable to fall from the free end of the placing rod 10. The semicircular placing piece 11 can limit the cable from shaking left and right and causing the cable to fall off.

[0029] In this embodiment, a plurality of spaced-apart steel balls 12 are embedded on one side of the opening of the placement piece 11. The steel balls 12 are rotatably connected to the placement piece 11 and at least partially protrude from the placement piece 11. By arranging a plurality of spaced-apart steel balls 12 on the placement piece 11, when the cable passes through the cable reserved hole 3 and is placed on the placement piece 11, sometimes workers will pull or pull the cable to adjust the cable. At this time, the cable is easily rubbed against the placement piece 11, causing wear of the outer rubber or waterproof coating of the cable. The steel balls 12 can reduce wear and prevent the problem of easy wear of the outer rubber or waterproof coating of the cable.

[0030] In this embodiment, a plurality of limiting holes 13 connected to the movable holes 9 are provided on the support frame 6, and a limiting groove 14 matched with the limiting hole 13 is provided on the placing rod 10. A limiting member 15 is slidably connected in the limiting groove 14, and a spring 16 is provided between the limiting member 15 and the limiting groove 14. Both ends of the spring 16 are respectively fixed to the limiting groove 14 and the limiting member 15. By setting the limiting groove 14 and the limiting member 15, it is convenient for the installation workers to fix the placing rod 10, thereby reducing the problem of the sliding of the placing rod 10 affecting the cable placement.

[0031] In this embodiment, lifting protrusions 17 are provided on at least two sides of the outer wall of the square well body 1, and a lifting notch 18 is provided at the bottom of the lifting protrusion 17. By providing the lifting protrusion 17 and the lifting notch 18, the lifting rope of the crane can be buckled into the lifting notch 18 to facilitate the lifting work of the crane, and it is also convenient for the installation workers to take out the lifting rope after the subsequent lifting is completed.

[0032] Working principle: When it is necessary to pre-bury and insert cables, the lifting rope of the crane can be buckled into the lifting notch 18 to facilitate the lifting work of the crane. When the crane lifts the square well body 1 into the pre-dug pit, the lifting rope can be removed from the lifting protrusion 17, and then the cable is passed through the cable reserved hole 3 on one side of the square well body 1, and the support frame 6 rotatably connected to the embedded groove 4 is pulled out, so that the support block 8 rotatably connected to the support rod 7 is against the bottom of the support groove 5, so that the support rod 7 supports the support frame 6, and the cable passing through the cable reserved hole 3 is placed on the placement piece 11, and then the worker pulls the cable to make the cable go along the other side of the square well body 1. During this process, the steel ball 12 can reduce the wear of the rubber or waterproof coating on the outside of the cable. After the installation is completed, the support frame 6, the placement rod 10 and the placement piece 11 support the cable to prevent the cable from falling to the bottom of the well due to gravity. When the cable reserved hole 3 changes, the position of the placement piece 11 can be adjusted by telescopic placement rod 10, and the placement rod 10 is fixed by the limit piece 15 being pushed into the limit hole 13 by the spring 16. When the cable or the square well body 1 needs to be repaired, the cable can be pushed upward, and then the support frame 6 is turned into the fitting groove 4, thereby increasing the activity space of the installation workers.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated cover-type cable square shaft structure for power engineering, characterized in that: include: A square well body (1) and a well cover (2) covering the top of the square well body (1), the square well body (1) is provided with cable reserved holes (3) on both sides, the square well body (1) is provided with an embedding groove (4) and a support groove (5) located at the bottom of the embedding groove (4) on the side where the cable reserved hole (3) is opened, a support frame (6) is rotatably connected in the embedding groove (4), a support rod (7) is rotatably connected at the top of the support frame (6), a support block (8) is slidably connected in the support groove (5), the free end of the support rod (7) is rotatably connected to the support block (8), and when the support block (8) abuts against the bottom of the support groove (5), the support frame (6) and the cable reserved hole (3) are in the same horizontal plane.

2. The prefabricated cover plate type cable square shaft structure for electric power engineering according to claim 1, characterized in that: A movable hole (9) is provided on the free end of the support frame (6), and a placement rod (10) is slidably connected in the movable hole (9).

3. The prefabricated cover plate type cable square shaft structure for electric power engineering according to claim 2, characterized in that: A semicircular placement piece (11) is fixed to one end of the placement rod (10) protruding from the movable hole (9), and an opening side of the placement piece (11) faces the manhole cover (2).

4. The prefabricated cover plate type cable square shaft structure for electric power engineering according to claim 3 is characterized by: A plurality of spaced-apart steel balls (12) are embedded on one side of the opening of the placement piece (11); the steel balls (12) are rotatably connected to the placement piece (11) and at least partially protrude from the placement piece (11).

5. The prefabricated cover plate type cable square shaft structure for electric power engineering according to claim 2, characterized in that: The support frame (6) is provided with a plurality of limiting holes (13) connected to the movable hole (9); the placement rod (10) is provided with a limiting groove (14) matched with the limiting hole (13); a limiting member (15) is slidably connected in the limiting groove (14); a spring (16) is provided between the limiting member (15) and the limiting groove (14); and two ends of the spring (16) are respectively fixed to the limiting groove (14) and the limiting member (15).

6. A prefabricated cover plate type cable square shaft structure for electric power engineering according to any one of claims 1 to 5, characterized in that: At least two sides of the outer wall of the square well body (1) are provided with lifting protrusions (17), and the bottom of the lifting protrusions (17) is provided with a lifting notch (18).

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