CN213520716U

CN213520716U - Can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire

Info

Publication number: CN213520716U
Application number: CN202022629087.2U
Authority: CN
Inventors: 倪利强; 单博博
Original assignee: Zhejiang Nengrung Power Equipment Co ltd
Current assignee: Zhejiang Nengrung Power Equipment Co ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2021-06-22
Anticipated expiration: 2030-11-14

Abstract

The utility model discloses a can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire, including the cabinet body, protection casing, bottom plate, an upper fixed plate, lock frame and alarm lamp, there is the protection casing side face through hinged mounting, the earth bar through connection has bottom plate and an upper fixed plate, and is connected with the telescopic link between bottom plate and the upper fixed plate left side, telescopic link upper end through connection has the pivot, and installs the lock frame at the pivot both ends, the upper fixed plate left side is provided with pressure switch, and installs the alarm lamp in the middle of the upper fixed plate. This can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire is provided with the protection casing, and in the in-service use process, after being connected earth connection and earth bar, cover it through the protection casing, avoid in the use, the accident is with its disconnection, can avoid being bitten by the mouse and cut off and lose the ground effect simultaneously, improves the reliability of ground connection, has increased the device's practicality.

Description

Can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire

Technical Field

The utility model relates to a virtual ground connection technical field of neutral point specifically is a can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire.

Background

With the continuous development of science and technology, electrical appliances are more and more widely applied, however, when various electrical appliances are supplied with electric energy, the phenomenon of overvoltage in an electric power supply system is very common, if precautionary measures are not taken, accidents such as cable blasting, motor insulation breakdown and even burning can happen at any time, the overvoltage can directly damage circuit elements, the neutral point virtual grounding device is formed by connecting secondary side three-phase windings in series to form an open triangle, a high-power resistor is connected, the neutral point of an equivalent system is grounded, power frequency grounding and non-power frequency grounding are achieved, the system neutral point virtual grounding is achieved, but the conventional grounding device is easy to fall off in the connection process, grounding failure is caused, and therefore the use of the neutral point virtual grounding device is influenced.

Therefore, a set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling is provided, so as to solve the problem that the traditional grounding device provided in the above is easy to fall off in the connecting process, so that grounding failure is caused, and the use of the neutral point virtual grounding device is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can prevent not hard up neutral point virtual ground complete sets that drops of connecting wire to solve the neutral point virtual ground device on the existing market that above-mentioned background art provided and drop easily in the connection process, lead to the ground connection inefficacy, thereby influence the problem of neutral point virtual ground device's use.

In order to achieve the above object, the utility model provides a following technical scheme: a neutral point virtual grounding complete device capable of preventing a connecting wire from loosening and falling comprises a cabinet body, a protective cover, a lower fixing plate, an upper fixing plate, a lock frame and an alarm lamp, wherein the protective cover is mounted on the side face of the cabinet body through a hinge, a handle is arranged on the left side of the protective cover, a grounding wire is connected to the side face of the cabinet body, a fixing ring is fixedly connected to the tail end of the grounding wire and is sleeved on a grounding rod, a locking nut is arranged above the fixing ring and is fixed on the grounding rod, a limiting ring is arranged in the middle of the grounding rod, the grounding rod is fixedly inserted into the ground, the lower fixing plate and the upper fixing plate are connected in a penetrating way, a telescopic rod is connected between the lower fixing plate and the left side of the upper fixing plate, a spring is connected in the middle of the telescopic, and an alarm lamp is arranged in the middle of the upper fixing plate.

Preferably, the upper surface of the protective cover is perpendicular to the side surface of the cabinet, the side surface of the protective cover is parallel to the side surface of the cabinet, and the protective cover and the cabinet form a rotating structure through a hinge.

Preferably, the central line of the fixing ring and the central line of the ground rod are overlapped, and the inner diameter of the fixing ring is larger than the outer diameter of the ground rod.

Preferably, the lower fixing plate and the upper fixing plate are parallel to each other, and the lower fixing plate and the upper fixing plate form a clamping structure through a telescopic rod.

Preferably, the central line of the telescopic rod is parallel to the central line of the ground rod, and the central line of the telescopic rod is perpendicular to the surface planes of the upper fixing plate and the lower fixing plate.

Preferably, the central line of the lock frame and the central line of the telescopic rod are superposed, the lock frame and the telescopic rod form a rotating structure through a rotating shaft, and the lock frame is of a horseshoe-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the neutral point virtual grounding complete device capable of preventing the connecting wire from loosening and falling off;

1. the protective cover is arranged, so that the grounding wire and the grounding rod are connected in the actual use process and then are covered by the protective cover, the grounding wire is prevented from being accidentally disconnected in the use process, meanwhile, the grounding effect can be prevented from being lost due to the fact that the grounding wire is bitten by a mouse, the reliability of grounding connection is improved, and the practicability of the device is improved;

2. be provided with pressure sensor and alarm lamp, at the in-service use in-process, make upper fixed plate and bottom plate press from both sides solid fixed ring through the lock frame, when taking place not hard up between upper fixed ring and the bottom plate, pressure sensor will give alarm lamp transmission signal to the suggestion staff inspects, avoids protection system to break down, has increased the device's functionality.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the ground wire and the ground rod of the present invention;

FIG. 3 is a schematic view of the connection structure of the upper fixing plate and the lower fixing plate of the present invention;

fig. 4 is a schematic view of the top fixing plate of the present invention.

In the figure: 1. a cabinet body; 2. a hinge; 3. a protective cover; 4. a handle; 5. a ground line; 6. a fixing ring; 7. a ground rod; 8. a limiting ring; 9. locking the nut; 10. a lower fixing plate; 11. an upper fixing plate; 12. a telescopic rod; 13. a spring; 14. a rotating shaft; 15. a lock frame; 16. a pressure switch; 17. a ground surface; 18. an alarm lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a neutral point virtual grounding complete set device capable of preventing a connecting wire from loosening and falling comprises a cabinet body 1, a hinge 2, a protective cover 3, a handle 4, a grounding wire 5, a fixing ring 6, a grounding rod 7, a limiting ring 8, a locking nut 9, a lower fixing plate 10, an upper fixing plate 11, a telescopic rod 12, a spring 13, a rotating shaft 14, a lock frame 15, a pressure switch 16, a ground 17 and an alarm lamp 18, wherein the protective cover 3 is installed on the side surface of the cabinet body 1 through the hinge 2, the handle 4 is arranged on the left side of the protective cover 3, the grounding wire 5 is connected to the side surface of the cabinet body 1 in a chained mode, the tail end of the grounding wire 5 is fixedly connected with the fixing ring 6, the fixing ring 6 is sleeved on the grounding rod 7, the upper portion of the fixing ring 6 is fixed on the grounding rod 7 through the locking nut 9, the limiting ring 8 is arranged in, and be connected with telescopic link 12 between lower fixed plate 10 and the 11 left sides of upper fixed plate to run through in the middle of telescopic link 12 and be connected with spring 13, the upper end run through of telescopic link 12 is connected with pivot 14, and pivot 14 both ends are installed and are locked

frame

15, and 11 left sides of upper fixed plate are provided with pressure switch 16, and install alarm lamp 18 in the middle of 11 upper fixed plates.

The upper surface of protection casing 3 and the side surface mutually perpendicular of the cabinet body 1, and the side surface of protection casing 3 and the side surface of the cabinet body 1 are parallel to each other to protection casing 3 passes through hinge 2 and constitutes revolution mechanic with the cabinet body 1, and above-mentioned structural design is in the in-service use in-process, is favorable to being connected between ground wire 5 and the earth bar 7 and protects.

The central line of solid fixed ring 6 and the central line of earth bar 7 coincide each other, and the internal diameter of solid fixed ring 6 is greater than the external diameter of earth bar 7, and above-mentioned structural design is favorable to solid fixed ring 6 and earth bar 7 to be connected in the in-service use process.

Bottom plate 10 is parallel to each other with upper fixed plate 11, and bottom plate 10 passes through

telescopic link

12 and 11 constitution clamping structure of upper fixed plate, and above-mentioned structural design is favorable to improving the reliability that solid fixed ring 6 and earth bar 7 are connected in the in-service use process.

The central line of telescopic link 12 and the central line of earth bar 7 are parallel to each other, and the central line of telescopic link 12 all mutually perpendicular with the surface plane of upper fixed plate 11 and lower fixed plate 10, and above-mentioned structural design is favorable to improving the clamping-force between lower fixed plate 10 and the upper fixed plate 11 through the cooperation between telescopic link 12 and the spring 13 in the in-service use process.

The central line of lock frame 15 and the central line of telescopic link 12 coincide each other, and lock frame 15 constitutes revolution mechanic through pivot 14 and telescopic link 12 to lock frame 15 is horseshoe-shaped structure, and above-mentioned structural design is favorable to through the cooperation between lock frame 15 and the pressure switch 16 in the in-service use process, detects and connects whether to have loosely tightly.

The working principle is as follows: when the neutral point virtual grounding complete set capable of preventing the connecting wire from loosening and falling is used, as shown in fig. 1 and fig. 2, firstly, the grounding rod 7 is inserted into the ground 17, then the fixing ring 6 at the tail end of the grounding wire 5 is sleeved on the grounding rod 7 and is locked through the locking nut 9, then the upper fixing plate 11 is sleeved in the grounding rod 7 and the telescopic rod 12, as shown in fig. 3 and fig. 4, then the locking frame 15 is installed at the top end of the telescopic rod 12, then the locking frame 15 is rotated to enable the locking frame 15 to be pressed against the pressure switch 16, meanwhile, the upper fixing plate 11 and the lower fixing plate 10 are mutually clamped, at the moment, the grounding device normally works, when the grounding device loosens, the pressure between the locking frame 15 and the upper fixing plate 11 is reduced, so that the alarm lamp 18 flickers to remind a worker to overhaul, thereby avoiding influencing the normal use of the protection device, and, after the grounding device is connected, the grounding device is covered by the protective cover 3, so that the grounding wire 5 is prevented from being accidentally broken in the working process, the grounding wire 5 can be prevented from being bitten by a mouse, the reliability of the connection of the grounding wire 5 is improved, and a series of work is completed.

It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the present invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a can prevent not hard up neutral point virtual ground integrated equipment who drops of connecting wire, includes the cabinet body (1), protection casing (3), bottom plate (10), upper fixed plate (11), lock frame (15) and alarm lamp (18), its characterized in that: the improved multifunctional cabinet is characterized in that a protective cover (3) is installed on the side face of the cabinet body (1) through a hinge (2), a handle (4) is arranged on the left side of the protective cover (3), a grounding wire (5) is linked to the side face of the cabinet body (1), a fixing ring (6) is fixedly connected to the tail end of the grounding wire (5), the fixing ring (6) is sleeved on a grounding rod (7), the upper portion of the fixing ring (6) is fixed to the grounding rod (7) through a locking nut (9), a limiting ring (8) is arranged in the middle of the grounding rod (7), the grounding rod (7) is fixedly inserted into the ground (17), the grounding rod (7) is connected with a lower fixing plate (10) and an upper fixing plate (11) in a penetrating manner, a telescopic rod (12) is connected between the left side of the lower fixing plate (10) and the left side of the upper fixing plate (11), a, and lock racks (15) are installed at two ends of the rotating shaft (14), a pressure switch (16) is arranged on the left side of the upper fixing plate (11), and an alarm lamp (18) is installed in the middle of the upper fixing plate (11).

2. The set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling off as claimed in claim 1, wherein: the upper surface of protection casing (3) and the side surface mutually perpendicular of the cabinet body (1), and the side surface of protection casing (3) and the side surface of the cabinet body (1) are parallel to each other to protection casing (3) pass through hinge (2) and constitute revolution mechanic with the cabinet body (1).

3. The set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling off as claimed in claim 1, wherein: the central line of the fixing ring (6) and the central line of the grounding rod (7) are overlapped, and the inner diameter of the fixing ring (6) is larger than the outer diameter of the grounding rod (7).

4. The set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling off as claimed in claim 1, wherein: the lower fixing plate (10) and the upper fixing plate (11) are parallel to each other, and the lower fixing plate (10) and the upper fixing plate (11) form a clamping structure through an expansion rod (12).

5. The set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling off as claimed in claim 1, wherein: the center line of the telescopic rod (12) is parallel to the center line of the grounding rod (7), and the center line of the telescopic rod (12) is perpendicular to the surface planes of the upper fixing plate (11) and the lower fixing plate (10).

6. The set of neutral point virtual grounding devices capable of preventing a connecting wire from loosening and falling off as claimed in claim 1, wherein: the central line of the lock frame (15) and the central line of the telescopic rod (12) are overlapped, the lock frame (15) and the telescopic rod (12) form a rotating structure through the rotating shaft (14), and the lock frame (15) is of a horseshoe-shaped structure.