Earthing bolt structure

Abstract

The utility model provides a grounding bolt structure which comprises a bolt body, the front end of the bolt body is a first fixing end, the rear end of the bolt body is a second fixing end, the front end and the rear end of the bolt body are respectively provided with an annular copper sheet, and the center of the bolt body is provided with a through hole penetrating through the two ends of the bolt body. The copper pipe is connected with the two copper sheets, and the copper pipe is connected in the through hole. A copper piece for electric transmission connection is arranged in a bolt body, so that the electric transmission capacity of the bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding bolts, in particular to a grounding bolt structure. Background Art

[0002] Many electrical equipment have requirements for the grounding of the casing. Whether the equipment casing is completely grounded directly affects personal safety and the normal use of the equipment. When grounding the casing, a grounding bolt is generally used on the casing. The grounding bolt is connected to the casing, and then the grounding connection is completed through the grounding wire to ensure the safety of the conductive connection.

[0003] For example, a new type of grounding bolt assembly is disclosed in the patent with patent authorization announcement number CN 217976955 U.

[0004] The electrical transmission of the grounding bolt is that the grounding wire contacts the device housing through the bolt. Most of the existing grounding bolts have been improved in how the wire and the device housing are connected to the bolt to improve the performance of electrical transmission. However, the electrical transmission capacity of the bolt itself will also affect the performance of the grounding bolt. Utility Model Content

[0005] In view of the problems pointed out in the background technology, the utility model proposes a grounding bolt structure, aiming to improve the electrical conductivity of the bolt to enhance the electrical transmission capacity of the bolt.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A grounding bolt structure includes a bolt body, the front end of the bolt body is a first fixed end, the rear end of the bolt body is a second fixed end, annular copper sheets are respectively provided at the front and rear ends of the bolt body, a through hole is provided at the center of the bolt body passing through both ends thereof, and also includes a copper tube connecting the two copper sheets, and the copper tube is connected in the through hole.

[0008] The utility model is further configured that a connecting groove is provided at the front end of the bolt body, the connecting groove penetrates the front end and two side surfaces of the bolt body, and the inner side of the connecting groove is threadedly connected with a first fixing stud.

[0009] The utility model is further configured that one end of the first fixing stud is provided with a straight-shaped operating groove.

[0010] The utility model is further configured that the inner thread of the copper tube is connected with a screw rod, and the screw rod is threadedly connected with a nut.

[0011] The utility model is further configured that the inner thread of the copper tube is connected with a screw.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0013] The grounding bolt structure provided by the utility model has a copper piece for electrical transmission connection arranged in the bolt body to improve its electrical transmission capacity (the copper piece replaces the original iron bolt body for electrical conduction, and has better electrical conduction capacity and performance). BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 or the description of the prior art 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 labor.

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 The structure of the utility model is shown in FIG. Figure 2 .

[0018] Figure 4 The utility model is shown in FIG. Figure 1 .

[0019] Figure 5 The structure of the utility model is shown in FIG. Figure 3 .

[0020] Figure 6 It is a structural schematic diagram of the bolt body of the utility model.

[0021] Figure 7 The structure of the utility model is shown in FIG. Figure 4 .

[0022] Figure 8 The utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] For reference Figure 1-8 The utility model is described as follows:

[0025] A grounding bolt structure includes a bolt body 1, the bolt body 1 is a cylindrical structure as a whole, the front end of the bolt body 1 is a first fixed end (the front end is connected to the wire), and the rear end of the bolt body 1 is a second fixed end (the rear end is connected to the device housing). The front end of the bolt body 1 is provided with a connecting groove 5, and the connecting groove 5 is arranged through the front end and two side surfaces of the bolt body 1, so that the front end of the bolt body 1 is a U-shaped structure, the inner side thread of the connecting groove 5 is connected with a first fixing stud 6, and the inner side wall of the connecting groove 5 is provided with an internal thread, the first fixing stud 6 is a cylindrical structure, and the outer side wall of the first fixing stud 6 is provided with an external thread, and one end of the first fixing stud 6 is provided with a straight-line operating groove 7, so that the tool can operate the first fixing stud 6. A through hole 3 is provided in the center of the bolt body 1, which runs through both ends thereof, and the rear end of the through hole 3 is located on the rear end surface of the bolt body 1, and the front end of the through hole 3 is located at the bottom of the connecting groove 5.

[0026] Circular copper sheets 2 are respectively provided at the front and rear ends of the through hole 3. The copper sheet 2 is coaxially arranged with the through hole 3. The copper sheet 2 is in contact with the bolt body 1. It also includes a copper tube 4 connecting the two copper sheets 2. The copper tube 4 is connected in the through hole 3. The two ends of the copper tube 4 are respectively fixedly connected to the two copper sheets 2. The outer diameter of the copper tube 4 is equal to the diameter of the through hole 3.

[0027] The first fixed end is connected to the wire in such a way that the wire is inserted into the connection groove 5 , the first fixing stud 6 is tightened, and the wire is clamped and fixed by the first fixing stud 6 and the copper sheet 2 .

[0028] The connection method between the second fixed end and the device housing, this application provides the following two implementation structures:

[0029] Implementation structure 1: The copper tube 4 is internally threaded with a screw rod 8, and one or two nuts 9 are threadedly connected to the screw rod 8. With this technical solution, the screw rod 8 is inserted into the hole on the device, and then the nut 9 is tightened to fix the screw rod 8 and the bolt body 1 to the device housing.

[0030] Implementation structure 2: The internal thread of the copper tube 4 is connected with a screw 10. With this technical solution, the copper tube 4 corresponds to the hole on the device housing, and the screw 10 enters the hole on the device housing and the copper tube 4 to fix the screw rod 8 and the bolt body 1 to the device housing.

[0031] The copper sheet 2 and the copper tube 4 are both made of metallic copper.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grounding bolt structure, comprising a bolt body (1), characterized in that: The front end of the bolt body (1) is a first fixed end, and the rear end of the bolt body (1) is a second fixed end. The front and rear ends of the bolt body (1) are respectively provided with annular copper sheets (2). The center of the bolt body (1) is provided with a through hole (3) penetrating through both ends thereof, and also includes a copper tube (4) connecting the two copper sheets (2), and the copper tube (4) is connected in the through hole (3).

2. A grounding bolt structure according to claim 1, characterized in that: The front end of the bolt body (1) is provided with a connecting groove (5), which penetrates the front end and two side surfaces of the bolt body (1), and the inner side of the connecting groove (5) is threadedly connected with a first fixing stud (6).

3. A grounding bolt structure according to claim 2, characterized in that: One end of the first fixing stud (6) is provided with a straight-line operating groove (7).

4. A grounding bolt structure according to claim 1, characterized in that: The copper tube (4) is internally threadedly connected to a screw rod (8), and a nut (9) is threadedly connected to the screw rod (8).

5. A grounding bolt structure according to claim 1, characterized in that: The copper tube (4) is internally threadedly connected with a screw (10).

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