CN219040749U

CN219040749U - Earthing device of temporary distribution board

Info

Publication number: CN219040749U
Application number: CN202222844691.6U
Authority: CN
Inventors: 王连军; 李玉东; 王萌; 索志强; 王玉象; 贾林聪
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-05-16
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to the technical field of distribution boards, in particular to a grounding device of a temporary distribution board, which comprises an extension rod, a clamping chassis, a fixed middle board and a crimping cap, wherein the extension rod is arranged on the clamping chassis; the top of extension rod is provided with strikes the cover and presss from both sides cover, it is provided with the recess to strike cover side wall relative position, strike the cover press from both sides cover with the chassis cover threaded connection of centre gripping chassis below, the centre gripping chassis top is provided with the chassis cover, fixed centre pan below evenly is provided with the centre pan connector of a plurality of arc structures, the centre pan connector with chassis cover internal thread connection, the crimping cap below is provided with the crimping cap connector, the crimping cap connector with the inside threaded connection of fixed centre pan, the length of crimping cap connector is greater than the height of fixed centre pan. The utility model has simple design and wide application range, can be suitable for various installation modes of the grounding wire, and can realize effective installation of the grounding wire no matter whether a grounding body exists near the temporary distribution board or not.

Description

Earthing device of temporary distribution board

Technical Field

The utility model relates to the technical field of distribution boards, in particular to a grounding device of a temporary distribution board.

Background

The distribution board is also called a power distribution cabinet, and is equipment for centralizing, switching and distributing electric energy. The distribution board is generally composed of a cabinet body, a switch, a protection device, an electric energy meter and other secondary components. The main application is as follows: the power failure and power transmission are convenient, the metering and protection functions are realized, and the overhaul is facilitated when the circuit faults occur. The distribution board can be used alone or as a matching device for mechanical equipment.

Temporary electricity applications are very common in various construction fields. Temporary electricity is led to a temporary distribution board from a power supply through a wire and redistributed for use. In order to install the standard and ensure the safety of staff, the temporary distribution board must be provided with a grounding wire, and the installation of the grounding wire is generally carried out in two ways nowadays. Firstly, the grounding wire is connected with a grounding body near the temporary distribution board, the grounding body is galvanized grounding flat iron, and in order to facilitate installation, constructors generally pull out the wire head of the grounding wire and then directly screw the wire head onto the grounding flat iron. The mode is not firmly installed, has small contact area, is very easy to loose and has no protection effect. Secondly, the ground wire with the special clamping head is purchased, the installation is convenient and firm, and the effective installation cannot be realized even if the direct grounding body is not arranged near the temporary distribution board. At present, there is no comprehensive way to achieve efficient installation of the ground wire under different conditions.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a grounding device of a temporary distribution board.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a grounding device of a temporary distribution board comprises an extension rod, a clamping chassis, a fixed middle plate and a crimping cap; the top of extension rod is provided with strikes the cover and presss from both sides cover, it is provided with the recess to strike cover side wall relative position, strike the cover press from both sides cover with the chassis cover threaded connection of centre gripping chassis below, the centre gripping chassis top is provided with the chassis cover, fixed centre pan below evenly is provided with the centre pan connector of a plurality of arc structures, the centre pan connector with chassis cover internal thread connection, the crimping cap below is provided with the crimping cap connector, the crimping cap connector with the inside threaded connection of fixed centre pan, the length of crimping cap connector is greater than the height of fixed centre pan.

Further, a contact pin is connected with the lower portion of the extension rod in a threaded manner.

Further, the lower part of the contact pin is of a conical structure, a connector lug is arranged at the bottom of the contact pin, and a grounding wire connecting through hole is formed in the connector lug.

Further, the contact pin upper portion is provided with the extension rod coupling groove, be provided with the internal thread in the extension rod coupling groove, the extension rod lower part is provided with the connector, the connector be provided with extension rod coupling groove assorted external screw thread.

Further, the upper part of the crimping cap is provided with a force application chuck.

Further, a knocking sleeve matched with the knocking sleeve clamping groove is arranged in the knocking sleeve clamping sleeve.

Further, a threaded hole is formed in the knocking sleeve in a penetrating mode, a threaded groove corresponding to the threaded hole is formed in the extension rod, a fixing bolt is arranged in the knocking sleeve in a penetrating mode, and the fixing bolt fixes the knocking sleeve on the extension rod.

Further, a groove is formed in the upper portion of the threaded hole of the knocking sleeve, and the depth of the groove is larger than the length of the head of the fixing bolt.

Further, the knocking sleeve 3 is integrally of an omega-shaped structure.

Furthermore, the knocking heads are symmetrically arranged on two sides of the knocking sleeve.

The beneficial effects achieved by the utility model are as follows:

1. the utility model has simple design and wide application range, can be suitable for various installation modes of the grounding wire, can realize effective installation of the grounding wire no matter whether a grounding body exists near the temporary distribution board, improves the working efficiency and ensures the safety of the working environment.

2. According to the utility model, the grounding flat iron can be flatly paved on the plane in the knocking sleeve jacket, and is fixed by the chassis connector below the clamping chassis, so that the contact area of the grounding flat iron and the grounding flat iron is increased, the grounding effect of the distribution board is better, and the safety is improved.

3. The crimping cap can firmly crimp the grounding wire in the groove of the chassis sleeve, the grounding wire is not easy to slip off, the installation is convenient and quick, and the crimping cap is suitable for popularization and use.

4. All parts of the utility model can be simply disassembled and assembled, can be replaced in time when damaged, and can be used for being matched with a temporary distribution board grounding wire for installation for a long time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the disassembled structure of the present utility model;

FIG. 3 is a schematic illustration of the connection of an extension rod to a tapping sleeve;

FIG. 4 is a schematic view of the attachment of the clamp chassis to the fixed middle plate;

FIG. 5 is a schematic top connection diagram of the present utility model;

fig. 6 is a schematic illustration of the connection of the extension rod to the clamping chassis.

The figure indicates: 1. a contact pin; 2. an extension rod; 3. knocking the sleeve; 4. a fixing bolt; 5. clamping the chassis; 6. fixing the middle plate; 7. a crimping cap; 11. a connector lug; 12. the grounding wire is connected with the through hole; 13. the extension rod is connected with the groove; 21. a connector; 22. knocking a jacket; 31. a knocking head; 51. a chassis connector; 52. a chassis sleeve; 61. a middle plate connector; 71. a crimping cap connector; 72. the clamping head is forced.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, a grounding device for a temporary electrical panel according to the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, a grounding device of a temporary distribution board comprises an extension rod 2, wherein a contact pin 1 is connected with the lower side of the extension rod 2 in a threaded manner, a knocking sleeve 3 is arranged inside the upper side of the extension rod 2, a clamping chassis 5 is connected with the upper side of the extension rod 2 in a threaded manner, a fixing middle plate 6 is connected with the inner side of the clamping chassis 5 in a threaded manner, and a crimping cap 7 is connected with the inner side of the fixing middle plate 6 in a threaded manner.

The upper portion of the contact pin 1 is of a slender cylindrical structure, the lower portion of the contact pin 1 is of a conical structure, a lug 11 of a cuboid structure is arranged below the contact pin 1, a grounding wire connecting through hole 12 is arranged in a penetrating mode in the center of the vertical end face of the lug 11, an extension rod connecting groove 13 is formed in the upper portion of the contact pin 1, and internal threads are formed in the inner wall of the extension rod connecting groove 13.

The extension rod 2 is of a cylindrical structure as a whole, a connector 21 is arranged at the center of the lowest end face of the extension rod 2, external threads are arranged on the outer side of the connector 21, the external threads of the connector 21 are matched with the internal threads of the extension rod connecting groove 13, and the connector 21 is in threaded connection with the extension rod connecting groove 13. The uppermost end of the extension rod 2 is provided with a knocking sleeve jacket 22, the whole knocking sleeve jacket 22 is of two symmetrical arc-shaped three-dimensional structures, the inner side wall of the knocking sleeve jacket 22 is provided with internal threads, a square groove is designed between the two symmetrical arc-shaped three-dimensional structures, the center of the lower end face of the knocking sleeve jacket 22 is provided with a circular groove, and the internal threads are arranged in the circular groove.

The whole knocking sleeve 3 is of an omega-shaped structure, a circular groove is formed in the center of the uppermost end face of the knocking sleeve 3, a circular through hole is formed in the center of the circular groove, and internal threads are arranged in the circular through hole; the two ends of the knocking sleeve 3 are symmetrically provided with knocking heads 31, and the whole knocking head 31 is of a square structure with an arc surface. The knocking sleeve 3 can be integrally inserted into two corresponding square grooves of the knocking sleeve jacket 22, the fixing bolt 4 penetrates through a circular through hole in the knocking sleeve 3 to be in threaded connection with a circular groove on the lower end face of the knocking sleeve jacket 22, and the head of the fixing bolt 4 can be immersed into the circular groove on the upper surface of the knocking sleeve 3.

The whole of the clamping chassis 5 is of a funnel-shaped structure, the lowest end of the clamping chassis 5 is provided with a chassis connector 51, the whole of the chassis connector 51 is of a cylinder structure, external threads are arranged on the outer side of the chassis connector 51, and the chassis connector 51 can be in threaded connection with the knocking sleeve jacket 22. The uppermost end of the clamping chassis 5 is provided with a chassis sleeve 52, the whole chassis sleeve 52 is of a flat large disc-shaped structure, the upper end surface of the chassis sleeve 52 is provided with a circular groove, and internal threads are arranged in the circular groove.

The whole fixed middle plate 6 is of a hollow cylinder structure, internal threads are arranged on the inner side of the main body part of the fixed middle plate 6, two middle plate connectors 61 of arc structures are symmetrically arranged at the left and right of the lower end of the fixed middle plate 6, and external threads are arranged on the outer sides of the two middle plate connectors 61. The middle plate connector 61 can be in threaded connection with the circular groove at the upper end of the bottom plate sleeve 52, the height of the middle plate connector 61 is larger than the depth of the circular groove at the upper end of the bottom plate sleeve 52, and a certain distance is reserved between the main body part of the fixed middle plate 6 and the bottom plate sleeve 52 after the middle plate connector 61 and the bottom plate sleeve are in threaded connection.

The whole crimping cap 7 is "T" type structure, and the lower extreme of crimping cap 7 is provided with crimping cap connector 71, and crimping cap connector 71 wholly is the cylinder structure, and the outside of crimping cap connector 71 is provided with the external screw thread. The center of the upper end of the crimping cap 7 is provided with a force application chuck 72, and the whole force application chuck 72 is of an arc square structure. The crimp cap connector 71 is connected with the inside of the fixed middle plate 6 by screw threads, and the length of the crimp cap connector 71 is larger than the height of the fixed middle plate 6.

When the electric power distribution device is used, if the grounding flat iron is arranged near the temporary electric power distribution board, a worker can arrange the temporary electric power distribution board near the grounding flat iron, then unscrew the clamping chassis 5, then hold the extension rod 2 by hand, sleeve the grounding flat iron by the knocking sleeve jacket 22, enable the grounding flat iron to be flatly clamped into the square groove of the knocking sleeve jacket 22, enable the clamping chassis 5 to be in threaded connection with the knocking sleeve jacket 22 after the grounding flat iron is clamped, screw down and fix the grounding flat iron, and enable the contact pin 1 to be in threaded connection with the connector 21 at the lower end of the extension rod 2 after the grounding flat iron is fixed.

When there is no ground strap near the temporary power panel, the ground strap is farther from the temporary power panel, and a long ground wire lead is required to be connected to the ground strap. The staff unscrews the clamping chassis 5 at first, the back hand holds extension rod 2 and will strike the cover and press the cover and cover 22 and cover the ground band iron, make the flat card of ground band iron in beating the square recess that covers the cover and cover 22, the ground band iron card is gone into the back with clamping chassis 5 and strike cover and press cover 22 threaded connection, screw up the fixed ground band iron of fixing, the back is accomplished to ground band iron, the staff again will fix middle plate 6 and chassis cover 52 threaded connection, then place outer earth connection one end in the circular recess in chassis cover 52, again with crimping cap 7 and fixed middle plate 6 threaded connection, screw up crimping cap 7, make the outer earth connection tightly by crimping cap 7 centre gripping in the circular recess in chassis cover 52, finally with outer earth connection other end and temporary distribution board ground connection.

When there is no grounding body such as a grounding flat iron near the temporary distribution board, a worker needs to self-make the grounding body. The staff installs the square recess department in the cover that strikes at first in the cover 22 with strike, uses dead bolt 4 to link together cover 3 and extension rod 2, make the cover that strikes 3 firm fixed in strike the cover and press the cover to cover 22, again with contact pin 1 with the connector 21 screw thread connection of extension rod 2 bottom together, again with the ground disc connector 21 with strike cover and press the cover to cover 22 screw thread connection, after the connection is accomplished, the staff vertically places the part of connecting, strikes the tap head 31 of left and right sides respectively, uses contact pin 1 and extension rod 2 to strike into the ground as the grounding body of temporary distribution board. The staff then will fix chassis 6 and chassis cover 52 threaded connection, then place earth connection one end in the circular recess in the chassis cover 52, again with crimping cap 7 and fixed chassis 6 threaded connection, screw up crimping cap 7, make the earth connection tightly by crimping cap 7 centre gripping in the circular recess in the chassis cover 52, finally with the earth connection other end with temporary distribution board ground connection can.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A temporary distribution board's earthing device, its characterized in that: comprises an extension rod (2), a clamping chassis (5), a fixed middle disc (6) and a crimping cap (7); the upper portion of extension rod (2) is provided with and beats cover clamp sleeve (22), it is provided with the recess to beat cover clamp sleeve (22) lateral wall relative position, beat cover clamp sleeve (22) with chassis cover (52) threaded connection of centre gripping chassis (5) below, centre gripping chassis (5) top is provided with chassis cover (52), fixed centre pan (6) below evenly is provided with centre pan connector (61) of a plurality of arc structures, centre pan connector (61) with chassis cover (52) internal thread connection, crimping cap (7) below is provided with crimping cap connector (71), crimping cap connector (71) with fixed centre pan (6) internal thread connection, the length of crimping cap connector (71) is greater than the height of fixed centre pan (6).

2. A temporary electrical panel grounding device according to claim 1, wherein: the lower part of the extension rod (2) is connected with a contact pin (1) in a threaded manner.

3. A temporary electrical panel grounding device according to claim 2, wherein: the lower part of the contact pin (1) is of a conical structure, a connector lug (11) is arranged at the bottom of the contact pin (1), and a grounding wire connecting through hole (12) is formed in the connector lug (11).

4. A temporary electrical panel grounding device according to claim 3, wherein: the novel contact pin comprises a contact pin body and is characterized in that an extension rod connecting groove (13) is formed in the upper portion of the contact pin body (1), internal threads are formed in the extension rod connecting groove (13), a connector (21) is arranged on the lower portion of the extension rod body (2), and external threads matched with the extension rod connecting groove (13) are formed in the connector (21).

5. A temporary electrical panel grounding device according to claim 1, wherein: the upper part of the compression joint cap (7) is provided with a force application clamping head (72).

6. A temporary electrical panel grounding device according to claim 1, wherein: a knocking sleeve (3) matched with the groove of the knocking sleeve jacket (22) is arranged in the knocking sleeve jacket (22).

7. A temporary electrical panel grounding apparatus as defined in claim 6, wherein: the novel hammer is characterized in that a threaded hole is formed in the hammer sleeve (3) in a penetrating mode, a threaded groove corresponding to the threaded hole is formed in the extension rod (2), a fixing bolt (4) is arranged in the hammer sleeve (3) in a penetrating mode, and the fixing bolt (4) fixes the hammer sleeve (3) on the extension rod (2).

8. A temporary electrical panel grounding apparatus as defined in claim 7, wherein: a groove is formed in the upper portion of the threaded hole of the knocking sleeve (3), and the depth of the groove is larger than the length of the head of the fixing bolt (4).

9. A temporary electrical panel grounding apparatus as defined in claim 6, wherein: the knocking sleeve (3) is of an omega-shaped structure as a whole.

10. A temporary electrical panel grounding apparatus as defined in claim 6, wherein: knocking heads (31) are symmetrically arranged on two sides of the knocking sleeve (3).