CN220963793U

CN220963793U - Public earthing device

Info

Publication number: CN220963793U
Application number: CN202323021325.1U
Authority: CN
Inventors: 王思知; 陈大鹏; 陈�峰; 赵孟利; 杨忠安; 陈齐齐
Original assignee: Shanghai Aircraft Manufacturing Co Ltd
Current assignee: Shanghai Aircraft Manufacturing Co Ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-05-14
Anticipated expiration: 2033-11-09

Abstract

The utility model belongs to the technical field of electrical tests, and discloses a public grounding device. The public grounding device comprises a mounting base, a main grounding column and a plurality of grounding assemblies, wherein the main grounding column is arranged on the mounting base and is used for connecting with an external grounding point; the grounding assembly comprises a grounding column and a branch switch, wherein the grounding column is used for being connected with equipment to be grounded, the branch switches are respectively connected with the main grounding column, and the branch switches are used for selectively connecting the main grounding column with the grounding column. The public grounding device can be simultaneously connected into a plurality of devices which need to be grounded, and the public grounding device is independent of each other, does not interfere with each other, is simple and convenient to operate, and is safer and more reliable.

Description

Public earthing device

Technical Field

The utility model relates to the technical field of electrical tests, in particular to a public grounding device.

Background

The integrity test of the full-sized cable of the civil aircraft is mainly divided into a conduction test and an insulation test, and in order to ensure the test precision, the cable test equipment of the civil aircraft is generally designed with a grounding requirement. The testing process often requires the use of multiple different items of cable testing equipment in parallel, which have different time requirements for the connection to ground.

At present, an operator of the test equipment is required to manually unscrew a fixing nut on the grounding column for the whole-aircraft cable integrity test of the aircraft, and then the lug of the grounding wire of the test equipment is connected and fixed with the grounding column. The installation mode of the grounding wire is low in efficiency, and the operation of repeatedly connecting the grounding lug is troublesome; simultaneously, the grounding connection of different devices is frequently carried out on the grounding column, and the operation is needed when other devices are stopped when new devices are added or withdrawn, so that the progress of other works is influenced.

Accordingly, there is a need to provide a novel public grounding device, so as to solve the above technical problems in the prior art.

Disclosure of utility model

The utility model aims to provide a public grounding device which can be connected into a plurality of devices to be grounded simultaneously, is independent of each other, does not interfere with each other, is simple and convenient to operate, and is safer and more reliable.

To achieve the purpose, the utility model adopts the following technical scheme:

the public grounding device comprises a mounting base, a main grounding column and a plurality of grounding assemblies, wherein the main grounding column is arranged on the mounting base and is used for connecting with an external grounding point; the grounding assembly comprises a grounding column and a branch switch, wherein the grounding column is used for being connected with equipment to be grounded, the branch switches are respectively connected with the main grounding column, and the branch switches are used for selectively connecting the main grounding column with the grounding column.

Optionally, the mounting base includes an upper mounting shell and a lower base, the upper mounting shell is detachably connected with the lower base, and the main grounding post and the grounding assembly are both mounted on the upper mounting shell.

Optionally, the main grounding post and the grounding post are all arranged on the upper mounting shell in a penetrating way, and the wires for connecting the grounding post, the branch switch and the main grounding post are all arranged below the upper mounting shell.

Optionally, the plurality of grounding assemblies are distributed in a plurality of rows, the grounding assemblies in the same row are all connected in parallel to the same branch wire, and the branch wires are connected to the main grounding post.

Optionally, the upper mounting shell and the lower base are made of insulating members.

Optionally, the upper mounting shell is provided with a plurality of mounting holes, an annular mounting groove is concavely formed in the circumferential wall surface of the grounding column, and the annular mounting groove is clamped in the mounting holes.

Optionally, a heat dissipating device is disposed on a side wall of the lower base, and the heat dissipating device is used for dissipating heat inside the mounting base.

Optionally, the wires connecting the grounding post, the branch switch and the main grounding post are all copper wires.

Optionally, in each set of the grounding assemblies, the separation switch is located between the grounding post and the main grounding post.

Optionally, the main grounding post and the grounding post are made of copper workpieces.

The beneficial effects are that:

The public grounding device comprises a main grounding column and a grounding assembly which are arranged on a mounting base, wherein the grounding assembly comprises a grounding column and a branch switch which are connected, the branch switch is respectively connected with the grounding column and the main grounding column, so that the connection state of the grounding column and the main grounding column is controlled, when the public grounding device is used, equipment to be grounded is connected with the grounding column, the main grounding column is connected with an external grounding point, and the corresponding branch switch is pressed, so that the equipment to be grounded is connected with the external grounding point to realize the grounding of the equipment to be grounded. The public grounding device can realize the selective communication of the main grounding column and the grounding column, so that a plurality of equipment to be grounded which needs grounding can be accessed simultaneously, and the public grounding device is independent of each other and is not interfered with each other when being connected, and is simple and convenient to operate, and safer and more reliable when in use.

Drawings

FIG. 1 is an isometric view of a common ground provided in accordance with an embodiment of the present utility model;

fig. 2 is a schematic diagram of internal wiring of a common grounding device according to an embodiment of the present utility model.

In the figure:

10. A mounting base; 11. an upper mounting shell; 12. a lower base; 20. a main grounding column; 30. a ground assembly; 31. a grounding column; 32. a sub-switch; 33. and (5) dividing the leads.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1, in this embodiment, the common grounding device includes a mounting base 10, a main grounding post 20 and a plurality of grounding assemblies 30, wherein the main grounding post 20 is disposed on the mounting base 10, and the main grounding post 20 is used for external grounding connection; the plurality of grounding assemblies 30 are disposed on the mounting base 10, the grounding assemblies 30 include a grounding post 31 and a disconnecting switch 32, the grounding post 31 is used for being connected with a device to be grounded, the plurality of disconnecting switches 32 are respectively connected with the main grounding post 20, and the disconnecting switch 32 is used for selectively connecting the main grounding post 20 with the grounding post 31.

The common grounding device in this embodiment is configured by providing the main grounding post 20 and the grounding assembly 30 on the mounting base 10, and the grounding assembly 30 includes the connected grounding post 31 and the separate switch 32, the separate switch 32 being connected to the grounding post 31 and the main grounding post 20, respectively, so as to control the connection state of the grounding post 31 and the main grounding post 20, in use, connect the device to be grounded to the grounding post 31, connect the main grounding post 20 to the external grounding point, and press the corresponding separate switch 32 to connect the device to be grounded to the external grounding point to achieve grounding of the device to be grounded. The public grounding device can realize the selective communication of the main grounding column 20 and the grounding column 31, so that a plurality of devices to be grounded which need grounding can be accessed simultaneously, and the devices are independent of each other and do not interfere with each other when being connected, and the public grounding device is simple and convenient to operate and safer and more reliable when in use.

Further, the mounting base 10 includes an upper mounting case 11 and a lower base 12, the upper mounting case 11 is detachably connected to the lower base 12, and the main grounding post 20 and the grounding assembly 30 are mounted to the upper mounting case 11. The installation base 10 that sets up like this can conveniently dismantle last installation shell 11, installs or dismantle the maintenance to main ground post 20 and the ground connection subassembly 30 on the installation shell 11, has improved maintenance efficiency.

As a preferred embodiment, the main grounding pin 20 and the grounding pin 31 are respectively inserted into the upper mounting case 11, and the wires connecting the grounding pin 31, the disconnecting switch 32, and the main grounding pin 20 are respectively positioned below the upper mounting case 11. The main connecting column and the grounding assembly 30 are arranged in the installation base 10, and the wires connected with each other are located in the installation base 10, so that the installation base is safer and more reliable to use, and personal injury accidents caused by the electrified phenomenon of the grounding wire are prevented.

Specifically, the upper mounting case 11 and the lower base 12 are each made of an insulating material. The installation base 10 made of the insulating piece is safer to use, electric shock accidents caused by contact of operators with the shell of the installation base 10 are avoided, and the use safety is improved.

Further, the upper mounting shell 11 is provided with a plurality of mounting holes, and the circumferential wall surface of the grounding post 31 is concavely provided with an annular mounting groove, and the annular mounting groove is clamped in the mounting holes. The ground post 31 that sets up like this can be fixed in the mounting hole through annular mounting groove joint, connects more firmly and reliably to dismantle also more conveniently when breaking down, improved the convenience of use.

In the present embodiment, specifically, a heat sink is provided on the side wall of the lower chassis 12, and the heat sink is used for dissipating heat from the inside of the mounting chassis 10. The heat dissipation device may be a heat dissipation hole, a heat dissipation fan or a heat dissipation fin on the side wall of the lower base 12, which is not described herein; the heat dissipation device can dissipate heat in the installation base 10, so that the aging and damage of leads in the installation base 10 caused by heat aggregation are prevented, and the service life and the use reliability of the public grounding device are improved.

As a preferred embodiment, the wires connecting the ground post 31, the disconnecting switch 32, and the main ground post 20 are all copper wires. Because the wires connecting the grounding post 31, the separating switch 32 and the main grounding post 20 are all copper wires, the copper wires have excellent conductivity, lower cost and easier processing, and can conveniently connect the leads inside the mounting base 10, thereby improving the production efficiency and reducing the production cost.

Optionally, in each set of the grounding assemblies 30, the disconnecting switch 32 is located between the grounding post 31 and the main grounding post 20. The separating switch 32 is located between the grounding post 31 and the main grounding post 20, so that the length of a required wire can be shortened, and the production cost can be reduced.

In the present embodiment, the main ground post 20 and the ground post 31 are each made of copper work. Copper has good conductivity, and raw materials and processing cost are low, so that the production and manufacturing cost of the public grounding device can be further reduced.

In this embodiment, as shown in fig. 2, a plurality of rows of the grounding assemblies 30 are distributed, the grounding assemblies 30 in the same row are all connected in parallel to the same branch line 33, and the branch line 33 is connected to the main grounding post 20. The grounding assembly 30 and the main grounding post 20 are connected in parallel by using the split lead 33, so that the length of a wire used for connection is shortened, the manufacturing cost is reduced, the wire is not wound in a disordered manner, and the practical safety is improved.

In this embodiment, each device to be grounded is connected to the grounding post 31 through a lead, the tail end of the lead is provided with a connecting ear clip, the connecting ear clip can be clipped on the grounding post 31, each grounding post 31 is only connected with a connecting ear clip of one device to be grounded, and a plurality of connecting ear clips of a plurality of devices to be grounded can be prevented from being simultaneously connected with the main grounding post 10, so that hidden troubles of resistance rise due to poor contact caused by poor grounding effect are avoided, and the use safety is improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A common ground device, comprising:

A mounting base (10);

A main grounding post (20), wherein the main grounding post (20) is arranged on the mounting base (10), and the main grounding post (20) is used for connecting with an external grounding point;

The grounding assembly (30) comprises a grounding column (31) and a disconnecting switch (32) which are connected, wherein the grounding column (31) is used for being connected with equipment to be grounded, the disconnecting switch (32) is respectively connected with the main grounding column (20), and the disconnecting switch (32) is used for selectively connecting the main grounding column (20) with the grounding column (31).

2. The common ground device according to claim 1, wherein the mounting base (10) comprises an upper mounting shell (11) and a lower base (12), the upper mounting shell (11) being detachably connected to the lower base (12), the main ground post (20) and the ground assembly (30) being mounted to the upper mounting shell (11).

3. The common grounding device according to claim 2, wherein the main grounding post (20) and the grounding post (31) are both arranged through the upper mounting shell (11), and the wires connecting the grounding post (31), the disconnecting switch (32) and the main grounding post (20) are all arranged below the upper mounting shell (11).

4. A common grounding device according to claim 3, characterized in that several rows of said grounding assemblies (30) are distributed, said grounding assemblies (30) of the same row being connected in parallel to the same branch line (33), said branch line (33) being connected to said main grounding post (20).

5. A common ground device according to claim 2, characterized in that the upper mounting shell (11) and the lower base (12) are both made of insulation.

6. The public earthing device according to claim 2, characterized in that the upper mounting shell (11) is provided with a plurality of mounting holes, and the circumferential wall surface of the grounding post (31) is concavely provided with an annular mounting groove, and the annular mounting groove is clamped in the mounting holes.

7. A common ground device according to claim 2, characterized in that the side walls of the lower base (12) are provided with heat dissipating means for dissipating heat inside the mounting base (10).

8. A common ground device according to any one of claims 1-7, characterized in that the wires connecting the grounding post (31), the disconnector (32) and the main grounding post (20) are copper wires.

9. A common ground arrangement according to any one of claims 1-7, characterized in that in each set of the ground assemblies (30), the disconnector (32) is located between the ground post (31) and the main ground post (20).

10. A common ground arrangement according to any one of claims 1-7, characterized in that the main ground post (20) and the ground post (31) are both made of copper work pieces.