Reducing cover plate for extra-high-voltage engineering foundation pit

By designing a foldable variable diameter cover plate for ultra-high voltage engineering pits, the problems of inconvenient transportation and insufficient applicability of manhole covers have been solved, achieving convenient transportation and firm fixation, and adapting to openings of different sizes.

CN223805884UActive Publication Date: 2026-01-16NANJING ZHUOTONG ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520397408.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-08
Publication Date
2026-01-16
Estimated Expiration
2035-03-08

AI Technical Summary

Technical Problem

Existing manhole covers are inconvenient to transport, especially in mountainous areas with winding roads and steep slopes, where they are heavy and difficult to accommodate holes of different sizes.

Method used

A foldable variable diameter cover plate for ultra-high voltage engineering pits was designed. Through the movable connection of the first and second frames, combined with crossbars, grating plates and protective plates, the size of the manhole cover can be adjusted to adapt to different openings, and it is fixed by chains and fixing columns.

Benefits of technology

It achieves convenient transportation and strong adaptability of manhole covers, which can be used for holes of different sizes and are firmly fixed after installation, thus solving the problems of inconvenient transportation and insufficient applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an extra-high voltage engineering foundation pit reducing cover plate, which relates to the well lid field, and comprises a first frame and a second frame, the first frame is movably connected with the second frame, the two sides of the first frame and the second frame are movably provided with protective plates, the end parts of the first frame and the second frame are movably provided with cross rods, and the cross rods are movably provided with protective plates. And connecting rods are fixed to the ends of the transverse rods, second grating plates are arranged at the bottoms of the connecting rods, first grating plates are arranged at the tops of the first frame and the second frame, and checkered plates are fixed to the tops of the first grating plates and the tops of the second grating plates. According to the manhole cover, the problem that an existing manhole cover is inconvenient to transport is solved, the first frame and the second frame are folded, so that the cover plate can be conveniently transported, the transverse rods are pulled outwards, the protection plates are opened, the size of the manhole cover can be adjusted, and the manhole cover is suitable for holes of different sizes and higher in applicability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of well lid, concretely is a superhigh pressure engineering foundation pit reducing cover plate. BACKGROUND

[0002] With the increase of the national superhigh pressure engineering, the soil foundation quantity is most in the superhigh pressure engineering currently, there is a long construction gap during waiting for binding muscle and pouring after the foundation hole opening is completed, under the premise of guaranteeing the safety of construction personnel and preventing wild animals from entering, it is necessary to make the cover plate satisfying the strength requirement, therefore it is necessary to use the well lid.

[0003] The existing well lid is large in volume and mass, and has transportation problems, especially for some winding, high-slope small roads in mountainous areas, the well lid is heavy and is troublesome during transportation. UTILITY MODEL CONTENTS

[0004] Based on this, the utility model aims at providing a superhigh pressure engineering foundation pit reducing cover plate to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a superhigh pressure engineering foundation pit reducing cover plate, comprising a first frame and a second frame, the first frame and the second frame are movably connected, the two sides of the first frame and the second frame are movably installed with protective plates, and the end portions of the first frame and the second frame are movably installed with cross bars, the end portions of the cross bars are fixed with connecting rods, the bottom portions of the connecting rods are provided with second grating plates, the top portions of the first frame and the second frame are provided with first grating plates, and the top portions of the first grating plate and the second grating plate are fixed with pattern plates.

[0006] Through the above technical scheme, the problem of inconvenient transportation of the existing well lid is solved, the first frame and the second frame are folded, so that the cover plate can be conveniently transported, the cross bar is pulled outward and the protective plate is opened, so that the size of the well lid can be adjusted, it is suitable for different size hole openings, and the applicability is stronger.

[0007] The utility model is further provided with the following arrangement: the inside of the first frame and the second frame is provided with a jack, and the inner wall of the jack is matched with the outer wall of the cross bar.

[0008] As a preferred, the movement direction of the cross bar is limited through the jack, so that the cross bar can only slide horizontally, and the jack can also accommodate the cross bar.

[0009] The utility model is further provided with the following arrangement: the inside of the first grating plate and the second grating plate is provided with a threaded hole, and the inside of the threaded hole is installed with a bolt, the first grating plate is connected with the first frame and the second frame through the bolt, and the second grating plate is connected with the connecting rod through the bolt.

[0010] As preferably, the first grating plate and the second grating plate can be fixed conveniently by bolts, so that the problem of the gap of the first frame and the second frame can be avoided.

[0011] The utility model further sets up, the first frame and second frame are connected through the pivot, two groups the fender are connected through the pivot between.

[0012] As preferably, the first frame and the second frame can be folded conveniently by the pivot connection, and the fender can be opened and closed conveniently.

[0013] The utility model further sets up, one side of fender is inclined surface setting.

[0014] As preferably, the fender with the inclined surface is prevented from being extruded when being folded.

[0015] The utility model further sets up, the end of cross bar is fixed with lug, the inner wall of bushing is set up with the sliding slot that matches with lug.

[0016] As preferably, the cross bar can be limited by the lug, and the cross bar is prevented from being separated from the first frame and the second frame.

[0017] The utility model further sets up, both sides of first frame and second frame are fixed with chain, and the end of chain is fixed with fixed column.

[0018] As preferably, when the manhole cover needs to be fixed, the chain is pulled tight, and the fixed column is inserted into the ground to fix the manhole cover.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] 1、 the utility model discloses a first frame, second frame, cross bar, connecting rod, first grating plate and second grating plate are set up, solve the inconvenient transportation of the existing manhole cover problem, by folding first frame and second frame, so that the cover plate can be transported conveniently, the cross bar is pulled to the outside and the fender is opened, so that the size of the manhole cover can be adjusted, and it is suitable for different size hole mouth, and the applicability is stronger.

[0021] 2、 the utility model discloses chain and fixed column are set up, when the manhole cover is laid on the hole mouth, the chain is pulled tight, and then the fixed column is inserted into the ground, so that the manhole cover can be fixed, and the problem that the manhole cover moves is avoided. DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the utility model;

[0023] Figure 2 It is the opening schematic view of first frame and second frame of the utility model;

[0024] Figure 3 It is the connection schematic view of protective plate of the utility model;

[0025] Figure 4 It is the structure schematic view of first grating plate of the utility model;

[0026] Figure 5 It is the connection schematic view of second grating plate of the utility model;

[0027] Figure 6 It is the structure schematic view of second embodiment of the utility model.

[0028] Explanation of reference signs:

[0029] 1, first frame; 2, second frame; 3, cross bar; 4, connecting rod; 5, first grating plate; 6, second grating plate; 7, pattern plate; 8, bolt; 9, protective plate; 10, threaded hole; 11, jack; 12, lug; 13, chain; 14, fixed column. Specific implementation

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model.

[0031] The embodiments will be described according to the overall structure of the utility model.

[0032] First embodiment:

[0033] Please refer to Figures 1-5 , including first frame 1 and second frame 2, open first frame 1 and second frame 2, first frame 1 and second frame 2 are movably connected, the two sides of first frame 1 and second frame 2 are movably installed with protective plate 9, pull the cross bar 3 to the outside, then open the protective plate 9, increase the area of the well lid, then lay on the top of the hole, first frame 1, second frame 2, cross bar 3, connecting rod 4, first grating plate 5, second grating plate 6 and protective plate 9 form well lid, and the end of first frame 1 and second frame 2 is movably installed with cross bar 3, the end of cross bar 3 is fixed with connecting rod 4, the bottom of connecting rod 4 is provided with second grating plate 6, the top of first frame 1 and second frame 2 is provided with first grating plate 5, and the top of first grating plate 5 and second grating plate 6 is fixed with pattern plate 7.

[0034] In the above embodiment, please refer to Figure 1 ,Figure 3 And Figure 5 The inner part of the first frame 1 and the second frame 2 is provided with a socket 11, and the inner wall of the socket 11 is matched with the outer wall of the cross rod 3. The socket 11 limits the movement direction of the cross rod 3, so that the cross rod 3 can only slide horizontally. The socket 11 can also store the cross rod 3.

[0035] In the above embodiment, please refer to Figure 1 And Figure 4 The inner part of the first grid plate 5 and the second grid plate 6 is provided with a threaded hole 10, and the threaded hole 10 is provided with a bolt 8. The first grid plate 5 is connected with the first frame 1 and the second frame 2 through the bolt 8, and the second grid plate 6 is connected with the connecting rod 4 through the bolt 8. The bolt 8 can fix the first grid plate 5 and the second grid plate 6, so as to avoid the problem of gap between the first frame 1 and the second frame 2.

[0036] In the above embodiment, please refer to Figure 3 The first frame 1 and the second frame 2 are connected through a rotating shaft, and the two groups of protective plates 9 are connected through a rotating shaft. The rotating shaft connection can make the first frame 1 and the second frame 2 fold easily, and the protective plate 9 can be opened and closed easily.

[0037] In the above embodiment, please refer to Figure 3 The side of the protective plate 9 is provided with a slope. When the protective plate 9 is folded, the problem of extrusion at the connection of the protective plate 9 is avoided.

[0038] In the above embodiment, please refer to Figure 3 And Figure 5 The end of the cross rod 3 is fixed with a protrusion 12, and the inner wall of the socket 11 is provided with a sliding groove matched with the protrusion 12. The protrusion 12 can limit the cross rod 3, and avoid the separation of the cross rod 3 from the first frame 1 and the second frame 2.

[0039] Second embodiment:

[0040] Please refer to Figure 6 The two sides of the first frame 1 and the second frame 2 are fixed with a chain 13, and the end of the chain 13 is fixed with a fixed column 14. When the chain 13 is pulled tight, the fixed column 14 is inserted into the ground to fix the well cover.

[0041] The utility model discloses a first frame 1 and second frame 2 are opened to the use of the hole mouth size is adjusted, when the hole mouth is small, first frame 1 and second frame 2 are placed in the upper of hole mouth, then first grid plate 5 is laid in the upper of first frame 1 and second frame 2, and first grid plate 5 is fixed through bolt 8, then chain 13 is taut, and fixed column 14 is inserted into the ground and is fixed to the well lid, when the hole mouth is big, the horizontal pole 3 is pulled to the outside, and then the protection board 9 is opened, and the area of well lid is increased, and then is laid in the upper of hole mouth.

[0042] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in the suitable mode, and the person skilled in the art can make the modification, replacement and change etc. without the creative contribution after reading the whole specification without departing from the principles and the tenet of the utility model, but as long as in the right claim range of the utility model, it is protected by the patent law.

Claims

1. An ultra-high voltage engineering foundation pit variable-diameter cover plate, comprising a first frame (1) and a second frame (2), characterized in that: The first frame (1) and the second frame (2) are movably connected, both sides of the first frame (1) and the second frame (2) are movably installed with the guard plates (9), and the end of the first frame (1) and the second frame (2) is movably installed with the cross bars (3), the end of the cross bar (3) is fixedly installed with the connecting rods (4), the bottom of the connecting rod (4) is provided with the second grating plates (6), the top of the first frame (1) and the second frame (2) is provided with the first grating plates (5), and the top of the first grating plates (5) and the second grating plates (6) is fixedly installed with the pattern plates (7).

2. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 1, characterized in that: The inside of the first frame (1) and the second frame (2) is provided with the insertion holes (11), and the inner wall of the insertion holes (11) is attached to the outer wall of the cross bar (3).

3. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 1, characterized in that: The inside of the first grating plates (5) and the second grating plates (6) is provided with the threaded holes (10), and the inside of the threaded holes (10) is installed with the bolts (8), the first grating plates (5) are connected with the first frame (1) and the second frame (2) through the bolts (8), and the second grating plates (6) are connected with the connecting rods (4) through the bolts (8).

4. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 1, characterized in that: The first frame (1) and the second frame (2) are connected through the rotating shafts, and the two groups of guard plates (9) are connected through the rotating shafts.

5. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 1, characterized in that: The side of the guard plate (9) is provided with a slope.

6. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 2, characterized in that: The end of the cross bar (3) is fixedly installed with the convex blocks (12), and the inner wall of the insertion hole (11) is provided with the sliding grooves matched with the convex blocks (12).

7. The variable-diameter cover plate for an extra-high voltage engineering foundation pit according to claim 1, characterized in that: Both sides of the first frame (1) and the second frame (2) are fixedly installed with the chains (13), and the end of the chain (13) is fixedly installed with the fixed columns (14).