A multi-directional top cover type grounding grid spacing assembly and construction method thereof

Abstract

A multi-directional top cover type grounding grid spacing component includes a bottom groove, a spacer, a spacer top cover and a plate-type plug. The bottom groove is a straight-line structure. A first groove penetrating through the two end faces of the bottom groove is arranged in the middle of the bottom groove. A second groove penetrating through the two side faces of the bottom groove is arranged on the side of the bottom groove. A plurality of third grooves are arranged on one side of the bottom groove in its horizontal direction. A hemisphere rotatable in the first groove is arranged at the bottom end of the spacer. Two through grooves arranged in a cross shape are arranged on the side of the bottom of the spacer. The through grooves are of a cross-shaped structure. One end of the spacer top cover is used to fix the grounding body, and the other end of the spacer top cover is connected to the screw hole at the top of the spacer. The plate-type plug includes a fixing plate and a plug. The plug is a cross-shaped structure. The plug is inserted in the through groove, and the fixing plate is inserted in the third groove. This design is not only highly reliable and easy to operate, but also has a firm connection, a wide range of applications, and is easy to install and disassemble.

Description

Technical Field

[0001] The invention relates to the field of power systems, and in particular to a multi-directional top cover type grounding grid spacing component and a construction method thereof, which is mainly suitable for realizing the spacing when two grounding bodies are laid in parallel or crosswise in a grounding trench. Background Art

[0002] The power transmission tower grounding grid of the power system is an important power infrastructure for preventing lightning damage to the transmission line. Its good grounding characteristics are an important factor in effectively preventing overvoltage on the tower top and flashover of insulators. In order to solve the problem of easy corrosion and breakage of the current tower grounding grid, flexible graphite composite grounding materials, a non-metallic conductive material, have been used as grounding bodies in the construction of towers in recent years. During the grounding construction, the flexible graphite composite grounding materials often need to be buried in the line towers that have been put into operation. Although the original galvanized steel grounding grid of the line tower has been corroded to varying degrees, most of the galvanized steel grounding bodies can still continue to play a dissipation role. Therefore, in order to reduce resource waste in the construction of towers, the general treatment method is to retain the original galvanized steel grounding grid and then lay the flexible graphite composite grounding materials and galvanized steel materials at a certain interval, which makes the grounding bodies of the two materials constitute a multi-material combined grounding grid.

[0003] When constructing the actual transmission tower grounding grid with flexible graphite grounding material grounding grid in addition to the original galvanized steel grounding grid, the problem of spacing between the two types of grounding bodies is often faced. On the one hand, if the graphite and steel grounding bodies come into contact in parallel directions, local backflow is likely to form after the two types of grounding bodies come into contact, affecting the overall dispersion effect of the tower grounding grid and reducing the economy of the grounding grid. On the other hand, if the two types of grounding bodies overlap in the cross direction, they are also likely to come into contact in the vertical direction at the intersection, which will also affect the resistance reduction effect of the two types of grounding grids. In the past, during on-site construction, the staff did not use highly reliable spacers to space different grounding materials, but only used some stones for rough processing, which not only failed to effectively achieve effective and rapid spacing between the two grounding grids, but also increased the construction workload. In addition, according to on-site construction experience, when spacing the two grounding grids, convenient connection methods should be used as much as possible to reduce the use of special tools. Therefore, it is particularly necessary for the combined grounding grid to use standardized, convenient and firm spacers. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects and problems of low reliability and complicated operation in the prior art, and to provide a multi-directional top cover grounding grid spacing component and its construction method which has high reliability, simple operation, firm connection, wide range of use, and easy installation and disassembly.

[0005] To achieve the above objectives, the technical solution of the present invention is: a multi-directional top cover type grounding grid spacing component, including a bottom groove, a spacer, a spacer top cover and a plate-type plug;

[0006] The bottom groove is a straight-line structure, a first groove penetrating through two end surfaces of the bottom groove is arranged in the middle of the bottom groove, a second groove penetrating through two side surfaces of the bottom groove is arranged on the side surface of the bottom groove, the second groove and the first groove are arranged in a cross shape, and a plurality of third grooves are arranged on one side surface of the bottom groove along its horizontal direction, the third grooves and the second grooves are arranged in a cross shape;

[0007] The spacer is placed in the first groove, a screw hole is provided at the top of the spacer, a hemisphere rotatable in the first groove is provided at the bottom of the spacer, and two through grooves arranged in a cross shape are provided on the side of the bottom of the spacer, and the through grooves are of a cross-shaped structure;

[0008] One end of the spacer top cover is used to fix the grounding body, and the other end of the spacer top cover is threadedly connected to the top end of the spacer through a screw hole;

[0009] The plate-type latch is a T-shaped structure, which includes a fixing plate and a latch. The latch is a cross-shaped structure. The latch is inserted into the through groove, and the fixing plate is inserted into the third groove.

[0010] The spacer top cover includes two symmetrically arranged top cover bodies, which include semicircular rings and semicircular screws. The two symmetrically arranged semicircular rings are used to fix the grounding body after being assembled, and the two symmetrically arranged semicircular screws are connected to the top of the spacer after being assembled.

[0011] The spacer is a cylindrical structure.

[0012] The bottom groove, the spacer, the spacer top cover and the plate-type latch are all made of epoxy resin, nylon or polytetrafluoroethylene.

[0013] A construction method for a multi-directional top cover type grounding grid spacing assembly, the construction method comprising the following steps:

[0014] When two parallel-laid grounding bodies are spaced apart in a grounding trench, first place the bottom groove horizontally in the grounding trench, then place the first spacer at one end of the first groove, and rotate the first spacer so that its through groove is aligned with the third groove, then fix the first spacer in one end of the first groove through a plate-type pin, then fix the No. 1 grounding body in the spacer top cover, and then fix the No. 1 grounding body at the top of the first spacer at an expected angle through the spacer top cover, then place the second spacer at the other end of the first groove, and rotate the second spacer so that its through groove is aligned with the third groove, and then fix the second spacer in the other end of the first groove through the plate-type pin, then fix the No. 2 grounding body in the spacer top cover, and then fix the No. 2 grounding body at the top of the second spacer at an expected angle through the spacer top cover. At this time, the No. 1 grounding body is laid in parallel with the No. 2 grounding body in the grounding trench.

[0015] A construction method for a multi-directional top cover type grounding grid spacing assembly, the construction method comprising the following steps:

[0016] When two types of grounding bodies are laid crosswise in the grounding trench, first place the bottom groove horizontally in the grounding trench, then place the first spacer vertically at one end of the first groove, and rotate the first spacer so that its through groove is aligned with the third groove, then fix the first spacer in one end of the first groove through a plate-type pin, then fix the No. 1 grounding body in the spacer top cover, and then fix the No. 1 grounding body at the top of the first spacer at an expected angle through the spacer top cover, then place the second spacer at an angle at the other end of the first groove, and rotate the second spacer so that its through groove is aligned with the third groove, and then fix the second spacer in the other end of the first groove through the plate-type pin, then fix the No. 2 grounding body in the spacer top cover, and then fix the No. 2 grounding body at the top of the second spacer at an expected angle through the spacer top cover. At this time, the No. 1 grounding body and the No. 2 grounding body are laid crosswise in the grounding trench.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a multi-directional top cover type grounding grid spacing component and a construction method thereof, wherein the bottom groove is a straight-line structure, a first groove penetrating through the two end surfaces of the bottom groove is arranged in the middle of the bottom groove, a second groove penetrating through the two side surfaces of the bottom groove is arranged on the side surface of the bottom groove, the second groove and the first groove are arranged in a cross-shaped cross, a plurality of third grooves are arranged on one side surface of the bottom groove along its horizontal direction, the third groove and the second groove are arranged in a cross-shaped cross, the bottom groove of the above structure ensures the relative fixation of the spacer and the bottom groove, and no relative displacement occurs; at the same time, a plurality of third grooves are provided, so that the spacer can be fixed at different positions of the bottom groove, adapt to the cooperation between grounding bodies of different intervals, and meet a variety of working environments; a screw hole is provided at the top end of the spacer, a hemisphere rotatable in the first groove is provided at the bottom end of the spacer, two cross-shaped through grooves are arranged on the side surface of the bottom of the spacer, and the through grooves are a cross-shaped structure, and the spacer of the above structure can be in the bottom groove. The concave surface can rotate freely, and can form different shapes with the bottom groove to adapt to the grounding bodies with different interval angles; a through groove is set, so that after the spacer is matched with the bottom groove and the plate-type plug, the spacer will not be offset in the bottom groove; a screw hole is set, and the length and multi-angle fine adjustment can be achieved through thread control; one end of the spacer top cover is used to fix the grounding body, and the other end of the spacer top cover is connected to the top thread of the spacer through the screw hole. The spacer top cover of the above structure can make the two grounding bodies spaced at multiple angles and directions by matching the bottom groove and the spacer; the plate-type plug is a T-shaped structure, which includes a fixing plate and a plug. The plug is a cross-shaped structure. The plug is inserted in the through groove, and the fixing plate is inserted in the third groove. The plate-type plug of the above structure makes the bottom groove, the spacer, and the plate-type plug form a stable fixation, and avoids other fixing methods such as bolts when in use, and no other tools are needed, so the purpose of tool-free installation and disassembly can be achieved. Therefore, the present invention has high reliability, simple operation, firm connection, wide application range, and simple installation and disassembly.

[0019] 2. In a multi-directional top cover type grounding grid spacing assembly and a construction method thereof, the top cover of the spacing member includes two symmetrically arranged top cover bodies, the top cover bodies include a semicircular ring and a semicircular screw, the two symmetrically arranged semicircular rings are used to fix the grounding body after being assembled, and the two symmetrically arranged semicircular screws are connected to the top of the spacing member after being assembled. The spacing member top cover of the above structure is not only easy to install and disassemble, but also can be applied to grounding bodies of different sizes; the manufacturing materials of the bottom groove, the spacer, the spacer top cover and the plate-type plug are all epoxy resin, nylon or polytetrafluoroethylene, so that the manufacturing cost is low. Therefore, the present invention is easy to install and disassemble, has a wide range of applications, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of two types of grounding bodies laid in parallel in the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the grounding body with two cross-over laying intervals in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the present invention.

[0023] Figure 4 yes Figure 3 Schematic diagram of the structure of the midsole groove.

[0024] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle partition.

[0025] Figure 6 yes Figure 3 Schematic diagram of the structure of the middle partition top cover.

[0026] Figure 7 yes Figure 3 Schematic diagram of the structure of the middle plate type latch.

[0027] In the figure: bottom groove 1, first groove 11, second groove 12, third groove 13, spacer 2, screw hole 21, hemispherical body 22, through groove 23, spacer top cover 3, top cover body 31, semicircular ring 311, semicircular screw 312, plate-type pin 4, fixing plate 41, pin 42, No. 1 grounding body 5, No. 2 grounding body 6. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] See also Figures 1 to 7 , a multi-directional top cover type grounding grid spacing component, comprising a bottom groove 1, a spacing member 2, a spacing member top cover 3 and a plate-type plug 4;

[0030] The bottom groove 1 is a straight-line structure, a first groove 11 penetrating through both end surfaces of the bottom groove 1 is provided in the middle of the bottom groove 1, a second groove 12 penetrating through both side surfaces of the bottom groove 1 is provided on the side surface of the bottom groove 1, the second groove 12 and the first groove 11 are arranged cross-shaped, and a plurality of third grooves 13 are provided on one side surface of the bottom groove 1 along its horizontal direction, the third grooves 13 and the second grooves 12 are arranged cross-shaped;

[0031] The spacer 2 is placed in the first groove 11, a screw hole 21 is provided at the top of the spacer 2, a hemispherical body 22 rotatable in the first groove 11 is provided at the bottom of the spacer 2, and two through grooves 23 arranged in a cross shape are provided on the side of the bottom of the spacer 2, and the through grooves 23 are of a cross-shaped structure;

[0032] One end of the spacer top cover 3 is used to fix the grounding body, and the other end of the spacer top cover 3 is threadedly connected to the top end of the spacer 2 through a screw hole 21;

[0033] The plate-type latch 4 is a T-shaped structure, which includes a fixing plate 41 and a latch 42 . The latch 42 is a cross-shaped structure. The latch 42 is inserted into the through groove 23 , and the fixing plate 41 is inserted into the third groove 13 .

[0034] The spacer top cover 3 includes two symmetrically arranged top cover bodies 31, and the top cover body 31 includes a semicircular ring 311 and a semicircular screw 312. The two symmetrically arranged semicircular rings 311 are used to fix the grounding body after assembly, and the two symmetrically arranged semicircular screws 312 are connected to the top of the spacer 2 after assembly.

[0035] The spacer 2 is a cylindrical structure.

[0036] The bottom groove 1, the spacer 2, the spacer top cover 3 and the plate-type latch 4 are all made of epoxy resin, nylon or polytetrafluoroethylene.

[0037] A construction method for a multi-directional top cover type grounding grid spacing assembly, the construction method comprising the following steps:

[0038] When two parallel-laid grounding bodies are spaced in the grounding trench, the bottom groove 1 is first placed horizontally in the grounding trench, and then the first spacer 2 is placed at one end of the first groove 11, and the first spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the first spacer 2 is fixed in one end of the first groove 11 through the plate-type pin 4, and then the No. 1 grounding body 5 is fixed in the spacer top cover 3, and then the No. 1 grounding body 5 is fixed to the top of the first spacer 2 at a desired angle through the spacer top cover 3, and then the second spacer 2 is placed at the other end of the first groove 11, and the second spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the second spacer 2 is fixed in the other end of the first groove 11 through the plate-type pin 4, and then the No. 2 grounding body 6 is fixed in the spacer top cover 3, and then the No. 2 grounding body 6 is fixed to the top of the second spacer 2 at a desired angle through the spacer top cover 3. At this time, the No. 1 grounding body 5 and the No. 2 grounding body 6 are laid in the grounding trench in parallel.

[0039] A construction method for a multi-directional top cover type grounding grid spacing assembly, the construction method comprising the following steps:

[0040] When two types of grounding bodies are laid crosswise in the grounding trench, the bottom groove 1 is first placed horizontally in the grounding trench, and then the first spacer 2 is placed vertically at one end of the first groove 11, and the first spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the first spacer 2 is fixed in one end of the first groove 11 by the plate-type pin 4, and then the No. 1 grounding body 5 is fixed in the spacer top cover 3, and then the No. 1 grounding body 5 is fixed to the top of the first spacer 2 at a desired angle through the spacer top cover 3, and then the second spacer 2 is placed obliquely at the other end of the first groove 11, and the second spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the second spacer 2 is fixed in the other end of the first groove 11 by the plate-type pin 4, and then the No. 2 grounding body 6 is fixed in the spacer top cover 3, and then the No. 2 grounding body 6 is fixed to the top of the second spacer 2 at a desired angle through the spacer top cover 3. At this time, the No. 1 grounding body 5 and the No. 2 grounding body 6 are laid crosswise in the grounding trench.

[0041] The principle of the present invention is described as follows:

[0042] The application field of this design is the construction of grounding grids for overhead power lines of any voltage level, such as power transmission lines and distribution lines in power systems, especially devices involving tower grounding grids with different grounding materials separated in the grounding trench; in addition, this design can also be applied to grounding construction projects in industrial fields such as telecommunication towers, communication base stations, radars, and railway traction line towers.

[0043] This design can achieve the spacing between the steel grounding body and the flexible graphite composite grounding grid when they are laid in parallel in the grounding trench, and at the same time, achieve the spacing of the two grounding materials in the vertical direction when they cross each other. The self-locking multi-directional grounding grid spacer described in this design is suitable for the spacing between grounding materials of any size. The spacer has the technical characteristics of firm connection, no bolt structure, simple operation, high flexibility, low preparation cost, and easy assembly and disassembly.

[0044] The spacer cooperates with the spacer top cover. First, the grounding body is placed in the spacer top cover, and then the spacer top cover is twisted into the screw hole above the spacer to reach a certain angle. Then, the spacer with two grounding bodies is placed in the bottom groove, and the plate-type latch is used to achieve integrated packaging.

[0045] Since the spacer is mainly used to fix and insulate the two grounding conductors, the materials for the bottom groove, spacer, plate-type plug and spacer top cover should be low-cost non-metallic materials, such as plastics or synthetic resin materials such as epoxy resin, nylon, polytetrafluoroethylene, etc.

[0046] The special feature of the spacer is that when its upper part and the spacer top cover are matched, it can be rotated according to the thread to achieve fine-tuning between multiple angles. When the grounding body is inserted into the top cover, the top cover is buckled and twisted into the spacer. In this way, the grounding body can be fixed on the spacer, and the two grounding bodies can play the expected spacing role.

[0047] The plate-type latch is in the shape of a key as a whole, and the key part is a cross-shaped structure. When the bottom groove and the spacer are completely matched, a cavity suitable for the plate-type latch to work is formed between the two. The plate-type latch is inserted into the cavity, thereby achieving the effect of relative fixation of the spacer plate and the bottom groove.

[0048] When two parallel grounding bodies are laid in the grounding trench, any one of the grounding bodies is placed on the spacer on one side of the bottom trench and fixed at the expected angle with the spacer cover. At the same time, another grounding body is fixed at the expected angle on the spacer on the other side. The spacers on both sides are matched with the bottom trench through the plate-type plugs to form the expected interval between the two spacers, thus achieving the complete connection and fixation of the spacers. When two cross-laid grounding bodies are laid in the grounding trench, one of the two spacers is placed normally and the other is placed in a rotated position, and a certain angle is adjusted through the spacer cover, and then it is placed in the bottom trench and fixed through the plate-type plugs, thus completing the complete connection of the spacers.

[0049] Example:

[0050] See also Figure 3 A multi-directional top cover type grounding grid spacing component includes a bottom groove 1, a spacer 2, a spacer top cover 3 and a plate-type plug 4; the manufacturing materials of the bottom groove 1, the spacer 2, the spacer top cover 3 and the plate-type plug 4 are all epoxy resin, nylon or polytetrafluoroethylene.

[0051] See also Figure 4 The bottom groove 1 is a straight-line structure, a first groove 11 is provided in the middle of the bottom groove 1 and passes through the two end surfaces of the bottom groove 1, a second groove 12 is provided on the side of the bottom groove 1 and passes through the two side surfaces of the bottom groove 1, the second groove 12 and the first groove 11 are arranged in a cross shape, and a plurality of third grooves 13 are provided on one side surface of the bottom groove 1 along its horizontal direction, the third groove 13 and the second groove 12 are arranged in a cross shape; the overall size of the bottom groove 1 is 250mm long, 40mm wide, 40mm high, and the tolerance is 0.5mm; the first groove 11 is 30mm long, 25mm wide, and 250mm deep; the second groove 12 is 230mm long, 10mm wide, and 40mm deep; the third groove 13 is 2.5mm long, 2mm wide, and 3.5mm deep.

[0052] See also Figure 5The spacer 2 is a cylindrical structure, and the spacer 2 is placed in the first groove 11. A screw hole 21 is provided at the top of the spacer 2, and a hemispherical body 22 that can rotate in the first groove 11 is provided at the bottom of the spacer 2. Two through grooves 23 arranged in a cross shape are provided on the side of the bottom of the spacer 2, and the through groove 23 is a M-shaped structure; the overall length of the spacer 2 is 120mm, the diameter is 25mm, and the tolerance is 0.5mm; the radius of the screw hole 21 is 5mm; the diameter of the hemispherical body 22 is 25mm; the single size of the M-shaped through groove 23 is 6mm in length, 1.25mm in width, and 25mm in depth.

[0053] See also Figure 6 One end of the spacer top cover 3 is used to fix the grounding body, and the other end of the spacer top cover 3 is threadedly connected to the top end of the spacer 2 through the screw hole 21; the spacer top cover 3 includes two symmetrically arranged top cover bodies 31, and the top cover body 31 includes a semicircular ring 311 and a semicircular screw 312. The two symmetrically arranged semicircular rings 311 are used to fix the grounding body after assembly, and the two symmetrically arranged semicircular screws 312 are connected to the top end of the spacer 2 after assembly; the upper part of the top cover body 31 (semicircular ring 311) is a semicircle with a radius of 25mm, and the lower part (semicircular screw 312) is a semicircle with a radius of 5mm and a depth of 25mm.

[0054] See also Figure 7 The plate-type latch 4 is a T-shaped structure, which includes a fixing plate 41 and a latch 42. The latch 42 is a cross-shaped structure. The latch 42 is inserted into the through groove 23, and the fixing plate 41 is inserted into the third groove 13. The overall dimensions of the plate-type latch 4 are 17 mm in length, 2 mm in width, 38.5 mm in thickness, and a tolerance of 0.5 mm. The dimensions of the cross-shaped structure (latch 42) are 6 mm in length, 1.25 mm in width, and 35 mm in depth.

[0055] See also Figure 1When two parallel-laid grounding bodies are spaced in the grounding trench, the bottom groove 1 is first placed horizontally in the grounding trench, and then the first spacer 2 is placed at one end of the first groove 11, and the first spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the first spacer 2 is fixed in one end of the first groove 11 through the plate-type pin 4, and then the No. 1 grounding body 5 is fixed in the spacer top cover 3, and then the No. 1 grounding body 5 is fixed to the top of the first spacer 2 at a desired angle through the spacer top cover 3, and then the second spacer 2 is placed at the other end of the first groove 11, and the second spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the second spacer 2 is fixed in the other end of the first groove 11 through the plate-type pin 4, and then the No. 2 grounding body 6 is fixed in the spacer top cover 3, and then the No. 2 grounding body 6 is fixed to the top of the second spacer 2 at a desired angle through the spacer top cover 3. At this time, the No. 1 grounding body 5 and the No. 2 grounding body 6 are laid in the grounding trench in parallel.

[0056] See also Figure 2 When two types of grounding bodies are laid crosswise in the grounding trench, the bottom groove 1 is first placed horizontally in the grounding trench, and then the first spacer 2 is placed vertically at one end of the first groove 11, and the first spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the first spacer 2 is fixed in one end of the first groove 11 through the plate-type pin 4, and then the No. 1 grounding body 5 is fixed in the spacer top cover 3, and then the No. 1 grounding body 5 is fixed to the top of the first spacer 2 at a desired angle through the spacer top cover 3, and then the second spacer 2 is placed obliquely at the other end of the first groove 11, and the second spacer 2 is rotated so that its through groove 23 is aligned with the third groove 13, and then the second spacer 2 is fixed in the other end of the first groove 11 through the plate-type pin 4, and then the No. 2 grounding body 6 is fixed in the spacer top cover 3, and then the No. 2 grounding body 6 is fixed to the top of the second spacer 2 at a desired angle through the spacer top cover 3. At this time, the No. 1 grounding body 5 and the No. 2 grounding body 6 are laid crosswise in the grounding trench.

Claims

1. A multi-directional top cover type grounding grid spacing assembly, characterized in that: It comprises a bottom groove (1), a spacer (2), a spacer top cover (3) and a plate-shaped latch (4); The bottom groove (1) is a straight-line structure, a first groove (11) penetrating the two end surfaces of the bottom groove (1) is arranged in the middle of the bottom groove (1), a second groove (12) penetrating the two side surfaces of the bottom groove (1) is arranged on the side surface of the bottom groove (1), the second groove (12) and the first groove (11) are arranged in a cross shape, and a plurality of third grooves (13) are arranged on one side surface of the bottom groove (1) along its horizontal direction, the third grooves (13) and the second grooves (12) are arranged in a cross shape; The spacer (2) is placed in the first groove (11), a screw hole (21) is arranged at the top end of the spacer (2), a hemispherical body (22) rotatable in the first groove (11) is arranged at the bottom end of the spacer (2), and two through grooves (23) arranged in a cross shape are arranged on the side of the bottom of the spacer (2), and the through grooves (23) are of a cross-shaped structure; One end of the spacer top cover (3) is used to fix the grounding body, and the other end of the spacer top cover (3) is threadedly connected to the top end of the spacer (2) through a screw hole (21); The plate-shaped latch (4) is a T-shaped structure, comprising a fixing plate (41) and a latch (42); the latch (42) is a cross-shaped structure; the latch (42) is inserted into the through groove (23); and the fixing plate (41) is inserted into the third groove (13).

2. A multi-directional top cover type grounding grid spacing assembly according to claim 1, characterized in that: The spacer top cover (3) comprises two symmetrically arranged top cover bodies (31), the top cover bodies (31) comprising a semicircular ring (311) and a semicircular screw rod (312), the two symmetrically arranged semicircular rings (311) being used to fix the grounding body after being assembled, and the two symmetrically arranged semicircular screw rods (312) being connected to the top end of the spacer (2) after being assembled.

3. A multi-directional top cover type grounding grid spacing assembly according to claim 1, characterized in that: The spacer (2) is a cylindrical structure.

4. A multi-directional top cover type grounding grid spacing assembly according to claim 1, characterized in that: The bottom groove (1), the spacer (2), the spacer top cover (3) and the plate-shaped latch (4) are all made of epoxy resin, nylon or polytetrafluoroethylene.

5. A construction method for the multi-directional top cover type grounding grid spacing assembly according to claim 1, characterized in that: The construction method comprises the following steps: When two parallel grounding bodies are spaced in a grounding trench, the bottom groove (1) is first placed horizontally in the grounding trench, and then the first spacer (2) is placed at one end of the first groove (11), and the first spacer (2) is rotated so that the through groove (23) is aligned with the third groove (13), and then the first spacer (2) is fixed in one end of the first groove (11) by a plate-type latch (4), and then the first grounding body (5) is fixed in the spacer top cover (3), and then the first grounding body (5) is fixed to the first spacer (2) at a desired angle by the spacer top cover (3). The second spacer (2) is placed at the other end of the first groove (11), and the second spacer (2) is rotated so that the through groove (23) is aligned with the third groove (13). The second spacer (2) is then fixed in the other end of the first groove (11) by the plate-type latch (4). The second grounding body (6) is then fixed in the spacer top cover (3). The second grounding body (6) is then fixed to the top of the second spacer (2) at a desired angle by the spacer top cover (3). At this time, the first grounding body (5) and the second grounding body (6) are laid in parallel in the grounding trench.

6. A construction method for the multi-directional top cover type grounding grid spacing assembly according to claim 1, characterized in that: The construction method comprises the following steps: When two types of grounding bodies are laid crosswise in a grounding trench, the bottom trench (1) is first placed horizontally in the grounding trench, and then the first spacer (2) is placed vertically at one end of the first groove (11), and the first spacer (2) is rotated so that its through groove (23) is aligned with the third groove (13), and then the first spacer (2) is fixed in one end of the first groove (11) by a plate-type latch (4), and then the first grounding body (5) is fixed in the spacer top cover (3), and then the first grounding body (5) is fixed to the first spacer (2) at a desired angle by the spacer top cover (3). The second spacer (2) is placed at the top of the first groove (11), and the second spacer (2) is rotated so that the through groove (23) is aligned with the third groove (13). The second spacer (2) is then fixed in the other end of the first groove (11) by the plate-type latch (4). The second grounding body (6) is then fixed in the spacer top cover (3). The second grounding body (6) is then fixed to the top of the second spacer (2) at a desired angle by the spacer top cover (3). At this time, the first grounding body (5) and the second grounding body (6) are laid crosswise in the grounding trench.

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