CN218827872U

CN218827872U - Novel totally enclosed low pressure earth connection device

Info

Publication number: CN218827872U
Application number: CN202222049522.3U
Authority: CN
Inventors: 路峤; 郭锐; 畅玉珊; 赵东军; 赵永萍; 赵宝
Original assignee: Lanzhou Yineng Power Group Co ltd
Current assignee: Lanzhou Yineng Power Group Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-04-07
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a novel totally enclosed low pressure earth connection device, including conductor end subassembly, including sleeve pipe and chucking spare, chucking spare set up in the sleeve pipe, the sleeve pipe lateral wall is provided with first elastic component and connects chucking spare. The utility model has the advantages that: through the improvement of bushing type, set up jack catch and first elastic component and increased area of contact and the contact dynamics of conductor end subassembly with maintenance equipment, and the screw thread of earth bolt from the area has also increased the frictional force with the jack catch contact surface, makes its in use difficult because of dragging and drops. Through setting up holder and second elastic component make ground connection pincers no longer need to clamp on the ground connection band iron with the mode that the jaw is tight, but can directly hang on the ground connection band iron of equipment, convenient operation.

Description

Novel totally enclosed low pressure earth connection device

Technical Field

The utility model relates to an earth connection technical field especially relates to a novel totally enclosed low pressure earth connection device.

Background

With the improvement of the power grid structure in recent years, substations with the voltage level of 35-330 kv have become key components of the grid main body grid structure. Meanwhile, the overhaul workload in the operation and maintenance of the transformer substation is increased rapidly, the safety risk of the overhaul personnel rises once, and particularly the overhaul workload of low-voltage electrical equipment easily enables the overhaul personnel to be relaxed and alert, so that accidental electric shock accidents are caused. The jaw type grounding wire is a safety barrier for protecting maintainers in the overhauling work of low-voltage electrical equipment, is a life line of electric power personnel and can prevent the human body from being injured by sudden incoming calls. However, the currently used indoor 380-volt jaw-type grounding wire only depends on a jaw spring to control the grounding clamp to contact with equipment, and a series of conditions that the contact area of the grounding clamp and an equipment grounding bolt is too small, the grounding clamp is easy to fall off due to pulling in maintenance operation and the like can be generated during use, so that the personal safety of maintenance personnel is damaged. Therefore, a novel totally-enclosed low-voltage grounding wire device is provided.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract and the title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present invention.

The utility model discloses a problem that the low pressure earth connection device exists has been provided in view of above-mentioned and/or current.

Therefore, the utility model aims to provide a novel totally enclosed low pressure earth connection device can effectively solve traditional low pressure earth connection ground tongs little, the easy technical problem who drops because the earth connection is dragged, greatly reduced work safety risk with equipment area of contact.

In order to solve the technical problem, the utility model provides a following technical scheme: a novel totally-enclosed low-voltage grounding wire device comprises,

the conductor end assembly comprises a sleeve and a clamping piece, wherein the clamping piece is arranged in the sleeve, and a first elastic piece is arranged on the side wall of the sleeve and connected with the clamping piece.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: the clamping piece comprises a base plate and a clamping jaw, and the clamping jaw is connected with the side wall of the base plate along the circumferential direction.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein:

a slotted hole is formed in the center of the base plate, and fixing blocks are arranged around the slotted hole.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: the bottom of the sleeve is provided with a wiring nose, and the upper end of the wiring nose is attached to the bottom of the chassis.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: and insulating rubber is arranged outside the sleeve.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: still include the ground terminal subassembly, the ground terminal subassembly passes through the circuit subassembly and is connected with the conductor end subassembly, including mount and clamping piece, the clamping piece sets up in the mount.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: one side of the fixing frame is provided with an opening.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: one end of the clamping piece is arranged on the side wall of the fixing frame, and the other end of the clamping piece is connected with the side wall of the fixing frame through the second elastic piece.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: the jack catch with the centre gripping piece all adopts the elasticity card to make.

As the utility model discloses a novel totally enclosed low pressure earth connection device's an preferred scheme, wherein: the circuit component comprises a short circuit line, one end of the short circuit line is connected with the wiring nose and penetrates through a slotted hole in the chassis, the other end of the short circuit line is connected with a grounding wire through a collecting pipe, and the grounding wire is connected to the fixing frame.

The utility model discloses beneficial effect does: the utility model discloses a set up sleeve pipe and chucking spare, increase conductor end subassembly and earth bolt's area of contact through setting up first elastic component in chucking spare outside, in the maintenance operation, when maintainer jointing equipment earth bolt, deformation takes place for first elastic component, makes earth bolt tightly block into in the chucking spare, and in use is difficult for droing because of dragging of earth connection, has effectively protected maintainer's personal safety.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:

fig. 1 is an overall structure diagram of a novel totally-enclosed low-voltage grounding wire device.

Fig. 2 is a top view of a conductor end assembly of the novel totally enclosed low voltage ground connection.

Fig. 3 is a perspective view of a manifold of a novel totally enclosed low voltage ground connection.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1-2, for the first embodiment of the present invention, this embodiment provides a novel totally enclosed low-voltage grounding wire device, which is characterized in that: comprises a conductor end assembly 100, which comprises a sleeve 101 and a clamping member 102, wherein the clamping member 102 is arranged in the sleeve 101, and a first elastic member 103 is arranged on the side wall of the sleeve 101 and connected with the clamping member 102. The retainer 102 includes a bottom plate 102a and a jaw 102b, and the jaw 102b is circumferentially connected to a sidewall of the bottom plate 102 a. The bottom of the sleeve 101 is provided with a lug 106, and the upper end of the lug 106 is jointed with the bottom of the bottom plate 102 a.

Preferably, the pawl 102b is made of a three-leaf spring card.

Specifically, a slot 104 is arranged in the center of the chassis 102a, a fixing block 105 is arranged around the slot 104, and the fixing block 105 is a copper block.

Preferably, an insulating rubber is provided outside the bushing 101.

With reference to fig. 1-2, the utility model has the following usage: during maintenance work, personnel must attach wires to the equipment grounding bolts while securing the end assembly 100 to the grounding bolts and attaching the end assembly 300 to the grounding flat bar. In the prior art, only the jaw and the spring are adopted to fix the grounding clamp on the grounding bolt of the equipment, and the grounding clamp is not firm due to the small contact area between the grounding clamp and the bolt, and the pulling can occur in the maintenance operation, so that the grounding clamp is easy to fall off. To the technical problem, the utility model discloses consider to install fixed establishment additional at the earth clamp or improve the fixed mode of earth clamp and solve present low pressure earth connection device trade and overhaul a difficult problem. Therefore the utility model discloses introduce the bushing type design, mutually support through setting up chucking spare 102 and first elastic component 103, reach conductor end subassembly 100 fastening connection on earth bolt, jack catch 102b front end can be along with the flexible and open and close of first elastic component 103 promptly. When the first elastic member 103 is compressed by force, the front ends of the jaws 102b are expanded, so that the ground bolt is clamped into the jaws 102 b. When the first elastic member 103 is stretched, the front ends of the jaws 102b are closed, so that the earth bolt is tightly caught in the jaws 102 b. And the claw 102b adopts three special independent arc-shaped elastic clamping pieces, and the special structure of the claw 102b fully increases the contact area and the contact force of the conductor end assembly 100 and the maintenance equipment. And the thread of the grounding bolt also increases the friction force of the contact surface of the grounding bolt and the claw 102b, so that the grounding bolt is not easy to fall off due to pulling in use. The sleeve 101 is covered with a layer of antiskid insulating rubber on the outside, which is convenient for the worker to take and operate.

Example 2

Referring to fig. 1, in order to illustrate the second embodiment of the present invention, this embodiment is based on the previous embodiment:

the grounding end assembly 200 is connected with the conductor end assembly 100 through a line assembly 300, and comprises a fixing frame 201 and a clamping piece 202, wherein the clamping piece 202 is arranged in the fixing frame 201. The fixing frame 201 is open at one side. One end of the clamping piece 202 is arranged on the side wall of the fixing frame 201, and the other end is connected with the side wall of the fixing frame 201 through the second elastic piece 203. The clamping piece 202 is made of a resilient card.

Specifically, the gripping tab 202 is made of two pieces of spring card.

With reference to fig. 1, the utility model is used as follows: the utility model discloses a set up that holding piece 202 and second elastic component 203 mutually support, make the ground connection pincers no longer need with the tight mode pincers of keeping silent clamp on the ground connection band iron, but can directly hang on the ground connection band iron of equipment, convenient operation. That is, when the second elastic member 103 is compressed by a force, the grounding flat iron can be clamped into the clamping piece 202. When the second elastic member 103 is stretched, the clamping piece 202 can tightly clamp the grounding flat iron.

Example 3

Referring to fig. 1 and 3, a third embodiment of the present invention is based on the first two embodiments:

the circuit assembly 300 is further included, the conductor end assembly 100 is connected with the grounding end assembly 200 through the circuit assembly 300, the circuit assembly 300 comprises a short-circuit wire 301, one end of the short-circuit wire 301 is connected with the wiring lug 106 and penetrates through a slot hole on the chassis 102a, the other end of the short-circuit wire 301 is connected with a grounding wire 303 through a bus pipe 302, and the grounding wire 303 is connected to the fixing frame 201.

Specifically, a slot 104 is disposed in the center of the chassis 102a, and a fixing block 105 is disposed around the slot 104.

Specifically, the bottom of the sleeve 101 is provided with a lug 106, and the upper end of the lug 106 is attached to the bottom of the bottom plate 102 a.

With reference to fig. 1 and 3, the utility model can be used as follows: firstly, the upper end of the short-circuit wire 301 enters the sleeve 101 from the lug 106 and then passes through the slot 104 on the chassis 102a, three fixing blocks 105 are arranged around the slot 104 to fix the short-circuit wire 301 and increase the contact area with the short-circuit wire 301, and the upper end of the short-circuit wire 301 is connected to the grounding bolt on the equipment end. Next, the short-circuit line 301 combines the currents drawn by the respective phase sequences into a current on one main line through the bus pipe 302, and is connected to the ground line 303. Finally, the ground line 303 is connected to the ground terminal assembly 300, and is connected to the ground flat body through the ground terminal assembly 300, so that the current is finally conducted to the ground.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a novel totally enclosed low pressure earth connection device which characterized in that: comprises the steps of (a) preparing a substrate,

the conductor end assembly (100) comprises a sleeve (101) and a clamping piece (102), wherein the clamping piece (102) is arranged in the sleeve (101), and a first elastic piece (103) is arranged on the side wall of the sleeve (101) and connected with the clamping piece (102).

2. A novel totally enclosed low voltage ground connection as claimed in claim 1, characterized in that said clamping member (102) comprises a bottom plate (102 a) and a claw (102 b), said claw (102 b) being circumferentially connected to the side wall of the bottom plate (102 a).

3. A novel totally enclosed low voltage ground wire assembly as claimed in claim 2, wherein said chassis (102 a) is centrally provided with a slot (104), and said slot (104) is surrounded by a fixing block (105).

4. A novel totally enclosed low voltage ground wire device as claimed in claim 2, wherein said sleeve (101) is provided with a connection lug (106) at the bottom, and the upper end of said connection lug (106) is attached to the bottom of the chassis (102 a).

5. A new type of totally enclosed low voltage earth wire device according to claim 4, characterized in that the outside of said bushing (101) is provided with insulating rubber.

6. The novel totally enclosed low voltage ground wire assembly of claim 2, further comprising a ground terminal assembly (200), wherein said ground terminal assembly (200) is connected to the conductor terminal assembly (100) through a line assembly (300), and comprises a holder (201) and a holding piece (202), wherein said holding piece (202) is disposed in the holder (201).

7. The new totally enclosed low voltage ground wire assembly as claimed in claim 6, wherein said holder (201) is open on one side.

8. The novel totally enclosed low-voltage grounding wire device as claimed in claim 6, wherein one end of the clamping piece (202) is disposed on the side wall of the fixing frame (201), and the other end is connected to the side wall of the fixing frame (201) through the second elastic member (203).

9. The novel totally enclosed low voltage ground wire assembly as claimed in claim 6, wherein said pawl (102 b) and said clamping piece (202) are made of resilient clamping pieces.

10. The novel totally enclosed low voltage ground wire device as claimed in claim 6, wherein said circuit assembly (300) comprises a short circuit wire (301), one end of said short circuit wire (301) is connected to the connection lug (106) and runs through the slot on the chassis (102 a), the other end is connected to the ground wire (303) through the collecting pipe (302), and said ground wire (303) is connected to the fixing frame (201).