Ground cable wells for space launch sites

Abstract

The utility model provides a grounding cable well suitable for a space launch site, comprising a well wall made of C30 concrete and a grounding device fixed on the well wall, the grounding device comprising two connectors and a copper bar, the copper bar is fixed with at least 5 grounding ends, any of the grounding ends is composed of a first copper bolt and a butterfly nut; the connector and the copper bar are connected by a second bolt; the grounding cable well is also equipped with a sump; the outer side of the well wall is coated with asphalt. The utility model meets the grounding requirements of different test systems, solves the problem of electrochemical corrosion of different metal connections, prolongs the service life of the grounding device, and facilitates the staff to inspect and test at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wells, in particular to a grounding cable well suitable for a space launch site. Background Art

[0002] There are many equipments in the test site of the space launch site, and the systems where each equipment is located require independent grounding. That is, each system is separated in the indoor test site, each connected to a dedicated grounding terminal, and then each system shares an outdoor grounding device. The grounding terminals of each system are connected with cables YJV (1×16)-PVC25-C, and the cables are required to be connected to the outdoor common grounding device. The grounding device is laid underground with hot-dip galvanized flat steel 50×5. Due to the large variety of grounding systems, the grounding cables of each system need to be connected to the outdoor grounding device, resulting in a large number of grounding cables. If the grounding cable is directly connected to the outdoor grounding flat steel, electrochemical corrosion is prone to occur in the copper-iron contact, and the galvanized flat steel will corrode and break within one or two years. The grounding resistance of the building will continue to increase, affecting the working safety of the test equipment.

[0003] Therefore, it is necessary to design a grounding cable well to solve the problems of outdoor connection and electrochemical corrosion of the grounding cable. Utility Model Content

[0004] The purpose of the utility model is to provide a grounding cable well suitable for a space launch site, which can meet the grounding requirements of different test systems, solve the electrochemical corrosion problem of different metal connections, extend the service life of the grounding device, and facilitate staff to inspect and test at any time.

[0005] To achieve the above-mentioned purpose of the utility model, the utility model provides a grounding cable well suitable for a space launch site, comprising a well wall made of C30 concrete and a grounding device fixed on the well wall, the grounding device comprising two connectors and a copper bar, at least five grounding terminals are fixed on the copper bar, and any of the grounding terminals is composed of a first copper bolt and a butterfly nut;

[0006] The connecting piece and the copper busbar are connected by a second bolt;

[0007] The grounding cable well is also equipped with a water collection pit;

[0008] The outer side of the well wall is coated with asphalt.

[0009] According to a technical solution of the utility model, any of the connecting parts is a hot-dip galvanized flat steel bent into a Z shape, one horizontal section of the Z-shaped connecting part is fixed to the copper busbar, and the other horizontal section passes through the well wall and is fixed to the ground.

[0010] According to a technical solution of the utility model, the well wall has a thickness of 200 mm, a length of 240 mm, a width of 1600 mm, and a height of 2500 mm.

[0011] According to a technical solution of the utility model, it also includes a well bottom plate made of C10 concrete, and the well bottom plate is arranged at the lower end of the well wall;

[0012] The thickness of the well bottom plate is 100 mm.

[0013] According to a technical solution of the utility model, the length of the vertical portion of the Z-shaped connecting member is 600 mm.

[0014] According to a technical solution of the utility model, the length of the copper bar is 1200 mm, the width is 5 mm, and the height is 50 mm;

[0015] The copper busbar is 1200 mm away from the bottom surface of the well wall and 200 mm away from one of the side surfaces of the well wall.

[0016] According to a technical solution of the utility model, it also includes a circular steel manhole cover with a diameter of 770 mm.

[0017] According to a technical solution of the utility model, a manhole cover support portion is provided at the top of the manhole wall, and the height of the manhole cover support portion is 300 mm.

[0018] According to a technical solution of the utility model, the sump is cylindrical with a cross-sectional diameter of 400 mm.

[0019] According to a technical solution of the utility model, a grounding cable inlet pre-buried pipe is arranged on the side wall of the well wall.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] According to the utility model, a grounding cable well suitable for a space launch site is proposed, which meets the grounding requirements of different test systems, solves the electrochemical corrosion problem of different metal connections, prolongs the service life of the grounding device, and facilitates the staff to inspect and test at any time. It is suitable for test sites of various space launch sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic side cross-sectional view of a ground cable well suitable for a space launch site according to an embodiment of the utility model is shown;

[0024] Figure 2 A schematic top view of a ground cable well suitable for a space launch site according to an embodiment of the utility model is shown;

[0025] Figure 3 The cross-sectional view schematically shows a ground cable well suitable for a space launch site according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1. Well wall; 2. Connectors; 3. Copper busbar; 4. Grounding terminal; 5. Second bolt; 6. Sump; 7. Steel well cover; 8. Pre-buried pipe for grounding cable inlet; 9. Well bottom plate. DETAILED DESCRIPTION

[0028] The description of the embodiments of this specification should be combined with the corresponding drawings, which should be considered as part of the complete specification. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated for simplification or convenience. Furthermore, the parts of each structure in the drawings will be described separately. It is worth noting that the elements not shown in the drawings or not described in words are in a form known to ordinary technicians in the relevant technical field.

[0029] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present invention. The following description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. The implementation methods cannot be described one by one here, but the implementation methods of the present invention are not therefore limited to the following implementation methods.

[0031] like Figures 1 to 3 As shown, according to an embodiment of the utility model, the utility model provides a grounding cable well suitable for a space launch site, comprising a well wall 1 made of C30 concrete and a grounding device fixed on the well wall 1, the grounding device comprising two connectors 2 and a copper bar 3, at least five grounding terminals 4 are fixed on the copper bar 3, and any grounding terminal 4 is composed of a first copper bolt and a butterfly nut;

[0032] The connecting piece 2 and the copper busbar 3 are connected by a second bolt 5;

[0033] The grounding cable well is also provided with a sump 6;

[0034] The outer side of the well wall 1 is coated with asphalt, and the thickness of the asphalt is 300um.

[0035] The launch site is located in the Gobi region, where the soil has a high salt-alkali content. If the grounding cable well is made of bricks, it will soon be corroded and collapsed by the salt and alkali. When the grounding cable well is centrally set up outdoors of the launch site building, the grounding requirements of different test systems are met, the electrochemical corrosion problem of different metal connections is solved, the service life of the grounding device is extended, and it is convenient for staff to carry out maintenance and inspection at any time.

[0036] The utility model is applicable to the grounding cable well of a space launch site and is applicable to the test sites of various space launch sites.

[0037] In some embodiments of the utility model, any connecting member 2 is a hot-dip galvanized flat steel bent into a Z shape, one horizontal section of the Z-shaped connecting member 2 is fixed to the copper bus 3, and the other horizontal section passes through the well wall 1 and is fixed to the ground, or is fixed by a steel plate pre-buried in the soil layer.

[0038] In some embodiments of the present invention, the thickness of the well wall 1 is 200 mm, and the following dimensions all include the wall thickness, the length is 240 mm, the width is 1600 mm, and the height is 2500 mm.

[0039] In some embodiments of the present utility model, it also includes a well bottom plate 9 made of C10 concrete, and the well bottom plate 9 is arranged at the lower end of the well wall 1;

[0040] The thickness of the well bottom plate 9 is 100 mm.

[0041] In some embodiments of the present invention, the length of the vertical portion of the Z-shaped connecting member 2 is 600 mm.

[0042] In some embodiments of the present invention, the copper bar 3 has a length of 1200 mm, a width of 5 mm, and a height of 50 mm;

[0043] The copper busbar 3 is 1200 mm away from the bottom surface of the well wall 1 and 200 mm away from one of the side surfaces of the well wall 1 .

[0044] In some embodiments of the present invention, a circular steel manhole cover 7 is also included, with a diameter of 770 mm.

[0045] In some embodiments of the utility model, a manhole cover support portion is provided at the top of the manhole wall 1, and the height of the manhole cover support portion is 300 mm.

[0046] In some embodiments of the present invention, the sump 6 is cylindrical with a cross-sectional diameter of 400 mm.

[0047] In some embodiments of the present invention, a grounding cable inlet pre-buried pipe 8 is provided on the side wall of the well wall 1 .

[0048] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "fitting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A grounding cable well suitable for a space launch site, characterized in that: It comprises a well wall (1) made of C30 concrete and a grounding device fixed on the well wall (1), the grounding device comprises two connecting pieces (2) and a copper bar (3), at least five grounding terminals (4) are fixed on the copper bar (3), and any of the grounding terminals (4) is composed of a first copper bolt and a butterfly nut; The connecting piece (2) and the copper busbar (3) are connected via a second bolt (5); The grounding cable well is also provided with a water collection pit (6); The outer side of the well wall (1) is coated with asphalt.

2. The grounding cable well suitable for a space launch site according to claim 1, characterized in that: Any of the connecting pieces (2) is a hot-dip galvanized flat steel bent into a Z shape, one horizontal section of the Z-shaped connecting piece (2) is fixed to the copper busbar (3), and the other horizontal section passes through the well wall (1) and is fixed to the ground.

3. The grounding cable well suitable for a space launch site according to claim 1, characterized in that: The well wall (1) has a thickness of 200 mm, a length of 240 mm, a width of 1600 mm and a height of 2500 mm.

4. The ground cable well suitable for a space launch site according to claim 3, characterized in that: It also includes a well bottom plate (9) made of C10 concrete, and the well bottom plate (9) is arranged at the lower end of the well wall (1); The thickness of the well bottom plate (9) is 100 mm.

5. The ground cable well suitable for a space launch site according to claim 2, characterized in that: The length of the vertical part of the Z-shaped connecting piece (2) is 600 mm.

6. The ground cable well suitable for a space launch site according to claim 2, characterized in that: The copper bar (3) has a length of 1200 mm, a width of 5 mm and a height of 50 mm; The copper busbar (3) is 1200 mm away from the bottom surface of the well wall (1), and is 200 mm away from one of the side surfaces of the well wall (1).

7. The ground cable well suitable for a space launch site according to claim 1, characterized in that: It also includes a circular steel manhole cover (7) with a diameter of 770 mm.

8. The ground cable well suitable for a space launch site according to claim 7, characterized in that: A manhole cover support portion is provided at the top of the manhole wall (1), and the height of the manhole cover support portion is 300 mm.

9. The ground cable well suitable for a space launch site according to claim 1, characterized in that: The sump (6) is cylindrical, with a cross-sectional diameter of 400 mm.

10. The ground cable well suitable for a space launch site according to any one of claims 1 to 9, characterized in that: A grounding cable inlet pre-buried pipe (8) is arranged on the side wall of the well wall (1).

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