Complete set of grounding device convenient to install

Abstract

A complete grounding device convenient to install comprises four groups of grounding units, and each grounding unit comprises a transition connecting rod and a ray horizontal grounding body. The clamping cylinder is horn-shaped, the large-diameter end of the clamping cylinder is used for inserting the end part of the connecting component, and the extrusion thread sleeve of which the inner diameter is smaller than the diameter of the end part of the end part is screwed on the outer circle side of the end, so that when the extrusion thread sleeve moves to the large-diameter end, the clamping cylinder can be extruded when the diameter of the clamping cylinder is larger than the inner diameter of the extrusion thread sleeve; the extrusion thread sleeve continuously moves to generate extrusion force to extrude the clamping cylinder, so that the diameter of the clamping cylinder is reduced, and the inner diameter is gradually reduced, so that the end part of a part inserted into the clamping cylinder can be extruded, the end part of the inserted part can be extruded to deform, and the part can be fixed in the clamping cylinder and tightly attached to the clamping cylinder; when the part is replaced, the end part of the part arranged in the clamping cylinder can be conveniently taken out only by controlling the extrusion thread sleeve to turn over and contacting the fastening force of the extrusion thread sleeve, and the part can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding equipment, and particularly relates to a complete set of grounding device which is convenient to install. Background Art

[0002] A complete set of grounding device is a device system used to connect an electrical system to the earth. It can introduce overcurrent in the electrical system into the earth to avoid damage to equipment caused by overcurrent, and reduce the harm of electrical accidents to the human body by reducing the touch voltage and step voltage. In the power system, the grounding device is an important device for limiting fault current and ensuring the stable operation of the power system.

[0003] The existing common complete set of grounding devices mainly include a plurality of grounding down conductors, transition connecting rods, ray horizontal grounding bodies and flexible grounding modules. These components are all connected to each other through connectors. According to the needs of the connection position, the connectors are usually one-piece socket cylinders or T-shaped socket cylinders. The ends of the components to be connected are inserted into the interior of the connectors, and then the inserted ends of the connectors are squeezed by a hydraulic press to fix the ends inside the connectors, thus completing the connection. However, this crimping method requires the use of tools for crimping. At the same time, after crimping, if the components need to be replaced subsequently, it is not easy to remove the components from the connectors. Content of the Utility Model

[0004] The purpose of the utility model is to provide a complete set of grounding device which is convenient to install, and the components of the device are convenient to disassemble and install.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a complete set of grounding device which is convenient to install, including four groups of grounding units. The grounding unit includes a transition connecting rod, a ray horizontal grounding body, a flexible grounding module, a grounding down conductor and a vertical grounding electrode. The grounding down conductor and the vertical grounding electrode are sequentially located above and below the transition connecting rod and are detachably connected to it through a T-shaped connector. All the transition connecting rods are horizontally and evenly distributed in a rectangle, and one ends of all the transition connecting rods are sequentially connected to the middle parts of adjacent transition connecting rods, and the other ends are all detachably connected to the ray horizontal grounding body through a one-piece connector. A flexible grounding module is arranged at one end of the ray horizontal grounding body far away from the one-piece connector. The one-piece connector includes a connecting block and clamping sleeves arranged at both ends of the connecting block for connection. The T-shaped connector includes a sleeve fixedly sleeved on the transition connecting rod and a clamping sleeve arranged on the outer circumferential side of the sleeve. The clamping sleeve includes a clamping cylinder with a C-shaped cross-section. The clamping cylinder is in a horn shape. The small-diameter end of the clamping cylinder is the connecting end, and the large-diameter end of the clamping cylinder is the inserted end. External threads are arranged on the outer circumferential side of the inserted end, and an extrusion screw sleeve matched with the external threads is sleeved. As the extrusion screw sleeve moves towards the end of the sleeve, the diameter of a part of the clamping cylinder is larger than the inner diameter of the extrusion screw sleeve, and the diameter of this end is reduced.

[0006] As a further optimization of a set of grounding devices that are easy to install in the present utility model, anti-slip particles are evenly distributed on the outer side of the extrusion screw sleeve.

[0007] As a further optimization of a set of grounding devices that are easy to install in the present utility model, a transmission column perpendicular to the outer side of the extrusion screw sleeve is provided.

[0008] As a further optimization of a set of grounding devices that are easy to install in the present utility model, a jack for inserting a lever is vertically provided on the end face of the transmission column facing away from the extrusion sleeve.

[0009] As a further optimization of a set of grounding devices that are easy to install in the present utility model, the wall thickness of the clamping cylinder is 1-3 mm.

[0010] As a further optimization of a set of grounding devices that are easy to install in the present utility model, the difference between the maximum outer diameter and the minimum outer diameter of the clamping sleeve is 1-3 mm.

[0011] As a further optimization of a set of grounding devices that are easy to install in the present utility model, the difference between the maximum outer diameter and the minimum outer diameter of the clamping sleeve is 2 mm.

[0012] As a further optimization of a set of grounding devices that are easy to install in the present utility model, a limiting edge for preventing the extrusion screw sleeve from falling off is provided at the large-diameter end port of the clamping sleeve.

[0013] The present utility model has the following beneficial effects: The clamping cylinder in the present utility model is in a trumpet shape. The large-diameter end of the clamping cylinder is for the end of the connecting component to be inserted, and an extrusion screw sleeve with an inner diameter smaller than the diameter of the end part of this end is screwed on the outer circular side of this end. By controlling the extrusion screw sleeve to move towards the large-diameter end, when the extrusion screw sleeve moves to a position where the diameter of the clamping cylinder is larger than the inner diameter of the extrusion screw sleeve, further movement of the extrusion screw sleeve will generate an extrusion force to squeeze the clamping cylinder, causing its diameter to shrink, and the inner diameter will also gradually shrink. Thus, it can squeeze the end of the component inserted into the clamping cylinder, deforming the end of the inserted component and fixing it inside the clamping cylinder, making it fit tightly with the clamping cylinder. At the same time, during subsequent maintenance, only by controlling the extrusion screw sleeve to turn and releasing its fastening force, it is convenient to take out the end of the component arranged in the clamping cylinder and replace this component. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the set of grounding devices;

[0015] Figure 2 It is a schematic diagram of the structure of the one-word connecting piece in the set of grounding devices;

[0016] Figure 3 It is a schematic diagram of the structure of the T-shaped connecting piece in the set of grounding devices;

[0017] Reference numerals: 1, transition connecting rod; 2, T-shaped connecting piece; 3, linear connecting piece; 4, ray horizontal grounding body; 5, flexible grounding module; 6, vertical grounding electrode; 7, grounding downlead; 8, connecting block; 9, ferrule, 901, cartridge; 902, external thread; 903, extrusion sleeve; 904, limiting edge; 10, jack; 11, fixed sleeve; 12, transmission column. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Figures 1-3

[0019] Embodiment 1

[0020] This embodiment provides a complete set of grounding devices that are easy to install. The components in the complete set of grounding devices are convenient to install and disassemble, facilitating installation and maintenance. What is the same as the prior art in the complete set of grounding devices provided in this embodiment is that both include four groups of grounding units. The grounding unit includes a transition connecting rod 1, a ray horizontal grounding body 4, a flexible grounding module 5, a grounding downlead 7, and a vertical grounding electrode 6. The transition connecting rod 1 is horizontally arranged transversely. The grounding downlead 7 and the vertical grounding electrode 6 are sequentially located above and below the transition connecting rod 1 and are detachably connected to it through a T-shaped connecting piece 2. All the transition connecting rods 1 are horizontally and evenly distributed in a rectangle, and one end of all the transition connecting rods 1 is sequentially connected to the middle of the adjacent transition connecting rod 1, and the other end is detachably connected to the ray horizontal grounding body 4 through a linear connecting piece 3. A flexible grounding module 5 is provided at one end of the ray horizontal grounding body 4 away from the linear connecting piece 3. The structures and functions of the above components are all well-known prior arts to those skilled in the art and will not be described in detail here.

[0021] The difference between this embodiment and the prior art is that the structures of the linear connecting piece 3 and the T-shaped connecting piece 2 are different from the prior art. In this embodiment, the linear connecting piece 3 includes a connecting block 8 and ferrules 9 provided at both ends of the connecting block 8 for connection. The connecting ends of the ray horizontal grounding body 4 and the transition connecting rod 1 are sequentially inserted into the two ferrules 9, and are clamped and fixed by the ferrules 9, thereby realizing the connection between the ray horizontal grounding body 4 and the transition connecting rod 1.

[0022] In this embodiment, the T-shaped connecting piece 2 includes a sleeve 11 fixedly sleeved on the transition connecting rod 1 and a ferrule 9 provided on the outer circumferential side of the sleeve 11. The connecting ends of the grounding downlead 7 and the vertical grounding electrode 6 are both inserted into the corresponding ferrules 9, and are clamped and fixed by the ferrules 9, thereby realizing the connection between the grounding downlead 7 and the vertical grounding electrode 6 and the transition connecting rod 1.

[0023] In this embodiment, the ferrule 9 includes a cartridge 901 with a C-shaped cross-section. The cartridge 901 is made of stainless steel with a certain elasticity. When a squeezing force is applied to the circumferential side of the cartridge 901, the two sides of the opening of the cartridge 901 can be merged, making its cross-section circular. Therefore, when the component to be connected is inserted into the cartridge 901, by applying a squeezing force to its circumferential side, the inner diameter of the cartridge 901 is changed to be smaller than the diameter of the inserted component, so as to squeeze and fit it, fix it inside the cartridge 901, and closely fit it with the inside of the cartridge 901. In this embodiment, in order to facilitate the squeezing and merging of the cartridge 901, the wall thickness of itself should not be too thick. In this embodiment, the wall thickness of the cartridge 901 is set to 1-3 mm, preferably 2 mm.

[0024] In this embodiment, the shape of the cartridge 901 is trumpet-shaped, with a large outer diameter at one end and a small outer diameter at the other end. The small-diameter end of the cartridge 901 is the connecting end, which is fixedly connected to the end of the connecting block 8 or the outer circumferential side of the sleeve 11. The large-diameter end of the cartridge 901 is the insertion end for the component to be inserted. An external thread 902 is provided on the outer circumferential side of the insertion end, and an extrusion sleeve 903 that is threadedly engaged with the external thread 902 is sleeved. As the extrusion sleeve 903 moves in a threaded manner towards the end of the sleeve 11, the diameter of this end decreases. It should be emphasized here that the diameter of the component inserted into the cartridge 901 should be consistent with the inner diameter of the cartridge 901. Therefore, when the diameter decreases, the cartridge 901 can squeeze and deform the end of the inserted component, fix it inside the cartridge 901, and closely fit it with the cartridge 901.

[0025] It should be emphasized here that the external thread 902 provided on the cartridge 901 is not a variable-diameter thread, and the extrusion sleeve 903 is also a conventional sleeve that is threadedly engaged with the external thread 902. Because the cartridge 901 is a variable-diameter cylinder, when the extrusion sleeve 903 moves to a position where the diameter of the cartridge 901 is larger than its own inner diameter, in order to be threadedly engaged with the external thread 902, the extrusion sleeve 903 will apply a squeezing force when rotating, so as to merge the opening of the cartridge 901 and squeeze the end of the component inserted into the cartridge 901. The trumpet-shaped setting of the cartridge 901 is to make part of the outer diameter of the cartridge 901 larger than the inner diameter of the extrusion sleeve 903, so that after the extrusion sleeve 903 is in a certain position, a squeezing force can be generated to squeeze the cartridge 901.

[0026] In this embodiment, the difference between the maximum outer diameter and the minimum outer diameter of the ferrule 9 is 1-3 mm. The preferred value is 2 mm. The difference between the maximum outer diameter and the minimum outer diameter is related to the inclination angle of the ferrule 9. If the inclination angle is too large, it is not conducive to the twisting of the extrusion sleeve 903.

[0027] In this embodiment, anti-slip particles are evenly distributed on the outer side of the extrusion sleeve 903. The setting of the anti-slip particles increases the friction on the outer circumferential side of the extrusion sleeve 903, which is convenient for the staff to rotate the extrusion sleeve 903.

[0028] In this embodiment, there is a limiting edge 904 on the outer circumference of the port at the large-diameter end of the ferrule 9, and the limiting edge 904 prevents the extrusion sleeve 903 from falling off from the port at the large-diameter end of the ferrule 9.

[0029] Embodiment 2

[0030] Most of the structures of this embodiment are the same as those of Embodiment 1. The difference is that a transmission column 12 perpendicular to the outer side of the extrusion sleeve 903 is provided. By providing the transmission column 12, it is convenient for the operator to apply a driving force to the transmission column 12, so as to facilitate the rotation of the extrusion sleeve 903.

[0031] In this embodiment, in order to more conveniently control the rotation of the extrusion sleeve 903, a jack 10 for inserting a lever is vertically provided on the end face of the transmission column 12 facing away from the extrusion sleeve 11. By inserting the lever into the transmission column 12, it is easier to control the rotation of the extrusion sleeve 11 by applying force to the lever.

[0032] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. A complete set of grounding devices that is easy to install, comprising four groups of grounding units, wherein the grounding units comprise a transition connecting rod (1), a ray horizontal grounding body (4), a flexible grounding module (5), a grounding down conductor (7) and a vertical grounding electrode (6), wherein the grounding down conductor (7) and the vertical grounding electrode (6) are sequentially located above and below the transition connecting rod (1) and are detachably connected thereto via a T-shaped connector (2), wherein all transition connecting rods (1) are horizontally evenly distributed in a rectangular shape, and one end of all transition connecting rods (1) are sequentially connected to the middle of adjacent transition connecting rods (1), and the other end is detachably connected to the ray horizontal grounding body (4) via a straight connector (3), and a flexible grounding module (5) is provided at one end of the ray horizontal grounding body (4) away from the straight connector (3), wherein the flexible grounding module (5) is characterized in that: The straight connector (3) comprises a connecting block (8) and a ferrule (9) for plugging arranged at both ends of the connecting block (8); the T-type connector (2) comprises a sleeve (11) fixedly sleeved on the transition connecting rod (1) and a ferrule (9) arranged on the outer circumference of the sleeve (11); the ferrule (9) comprises a cartridge (901) with a C-shaped cross section; the cartridge (901) is trumpet-shaped; the small-diameter end of the cartridge (901) is a connecting end; the large-diameter end of the cartridge (901) is a plug-in end; an external thread (902) is provided on the outer circumference of the plug-in end and an extrusion screw sleeve (903) is sleeved thereon and screwed with the external thread (902); a partial diameter of the cartridge (901) is larger than the inner diameter of the extrusion screw sleeve (903); as the extrusion screw sleeve (903) moves toward the end of the sleeve (11), the diameter of the cartridge (901) decreases.

2. A complete set of grounding devices that is easy to install according to claim 1, characterized in that: The outer side of the extrusion screw sleeve (903) is evenly distributed with anti-skid particles.

3. A complete set of grounding devices that is easy to install according to claim 1, characterized in that: The outer side of the extrusion screw sleeve (903) is provided with a transmission column (12) which intersects perpendicularly therewith.

4. A complete set of grounding devices that is easy to install according to claim 3, characterized in that: The end surface of the transmission column (12) facing away from the extrusion sleeve (11) is provided with an insertion hole (10) for inserting a lever.

5. The easy-to-install complete grounding device according to claim 1, characterized in that: The wall thickness of the cartridge (901) is 1-3 mm.

6. A complete set of grounding devices that is easy to install according to claim 1, characterized in that: The maximum outer diameter and the minimum outer diameter of the ferrule (9) differ by 1-3 mm.

7. A complete set of grounding devices that is easy to install according to claim 6, characterized in that: The maximum outer diameter and the minimum outer diameter of the ferrule (9) differ by 2 mm.

8. The easy-to-install complete grounding device according to claim 1, characterized in that: The large diameter end of the ferrule (9) is provided with a limiting edge (904) for preventing the extrusion screw sleeve (903) from falling off.

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