CN215728284U

CN215728284U - High-strength pressurizing clamp for high-voltage test

Info

Publication number: CN215728284U
Application number: CN202121785378.9U
Authority: CN
Inventors: 陈俊欣; 方圆; 汪凤月; 李泳龙; 周亮; 曾加跃; 钟建; 王少龙
Original assignee: Datang Hydropower Science and Technology Research Institute Co Ltd
Current assignee: Datang Hydropower Science and Technology Research Institute Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-02-01
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a high-strength pressurizing clamp aiming at a high-pressure test, which comprises: the main pliers comprise an upper pliers handle and a lower pliers handle, wherein one end of the upper pliers handle extends to form a lower pliers tooth, and one end of the lower pliers handle, which corresponds to the lower pliers tooth, extends to form an upper pliers tooth; the auxiliary pressurizing mechanism comprises an upper pressurizing handle and a lower pressurizing handle, one end of the upper pressurizing handle extends to form an upper pressurizing tooth, one end of the lower pressurizing handle corresponding to the upper pressurizing tooth extends to form a lower pressurizing tooth, a joint of the upper pressurizing handle and the upper pressurizing tooth is provided with a first protrusion, a joint of the lower pressurizing handle and the lower pressurizing tooth is provided with a second protrusion, the first protrusion and the second protrusion are connected through a second rotating shaft, the upper pressurizing tooth is arranged above the upper clamp tooth, the lower pressurizing tooth is arranged below the lower clamp tooth, and a compression spring is arranged between the upper pressurizing handle and the lower pressurizing handle. The utility model has simple structure, reliable compression and convenient wire connection change.

Description

High-strength pressurizing clamp for high-voltage test

Technical Field

The utility model relates to the technical field of high-voltage test equipment, in particular to high-strength pressurizing tongs for a high-voltage test.

Background

In order to realize stable and safe operation of the power system, the insulation and other conditions of the power system equipment must be mastered so as to make a reasonable maintenance plan, and various high-voltage electrical tests cannot be carried out. Most high-voltage electrical tests are thick and heavy due to the requirement of insulation, and the test environment is complex during the tests, so that wiring is often performed at high altitude or in a pot hole.

The traditional wiring clamp is only provided with a clamp body, although a high-strength spring mechanism is used, the traditional wiring clamp still has the risk of falling off when a test involving a complex environment is carried out, once the wiring falls off, the test progress is not only influenced, the wiring needs to be reconnected, and the personal safety and the equipment safety can be seriously influenced under the more serious condition.

Accordingly, those skilled in the art have provided a high strength pressing jaw for high pressure test to solve the problems presented in the background art described above.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-strength pressurizing clamp for high-voltage tests, which solves the problems in the prior art and has the advantages of simple structure, reliable compression and convenient wire connection change.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model relates to a high-strength pressurizing clamp aiming at a high-pressure test, which comprises:

the main pliers comprise an upper pliers handle and a lower pliers handle, one end of the upper pliers handle extends to form a lower pliers tooth, one end of the lower pliers handle, which corresponds to the lower pliers tooth, extends to form an upper pliers tooth, the joint of the upper pliers handle and the lower pliers tooth and the joint of the lower pliers handle and the upper pliers tooth are connected through a first rotating shaft, and the lower pliers tooth and the upper pliers tooth as well as the upper pliers handle and the lower pliers handle can synchronously approach or depart along the first rotating shaft respectively;

the auxiliary pressurizing mechanism comprises an upper pressurizing handle and a lower pressurizing handle, one end of the upper pressurizing handle extends to form an upper pressurizing tooth, one end of the lower pressurizing handle corresponding to the upper pressurizing tooth extends to form a lower pressurizing tooth, a first protrusion is arranged at the joint of the upper pressurizing handle and the upper pressurizing tooth, a second protrusion is arranged at the joint of the lower pressurizing handle and the lower pressurizing tooth, the first protrusion and the second protrusion are connected through a second rotating shaft, the upper pressurizing tooth is arranged above the upper clamp tooth, the lower pressurizing tooth is arranged below the lower clamp tooth, and a compression spring is arranged between the upper pressurizing handle and the lower pressurizing handle.

Furthermore, a fixing plate is arranged at the bottom of the second protrusion and close to the lower pressurizing handle, the top end of the compression spring is connected with the inner side wall of the upper pressurizing handle, and the bottom end of the compression spring is connected with the top surface of the fixing plate.

Furthermore, the fixing plate is provided with a through hole, a metal stopper is arranged below the fixing plate and connected with the inner wall of the upper pressurizing handle through a pull rope, and the pull rope penetrates through the through hole and the compression spring.

Preferably, the diameter of the through hole is smaller than that of the pressing spring, and the through hole is positioned below the pressing spring.

Furthermore, a limiter clamping groove is formed in the inner portion of the lower pressing handle, and the metal limiter can be clamped into the limiter clamping groove.

In the technical scheme, the high-strength pressurizing clamp for the high-pressure test provided by the utility model has the following beneficial effects: the extension tension of the compression spring acts on the auxiliary pressurizing mechanism, the main clamp is compressed, the main clamp is reliably connected with a clamped test article when high-voltage test is achieved, the metal limiting device and the limiting device clamping groove are arranged, and the metal limiting device is clamped in the limiting device clamping groove when the wiring is changed, so that the freely-moving pressurizing clamp is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a high-strength pressing clamp for a high-pressure test according to an embodiment of the present invention;

fig. 2 is a side view of fig. 1.

Description of reference numerals:

1. a main tong; 2. an auxiliary pressurizing mechanism;

11. an upper clamp handle; 12. a lower clamp handle; 13. lower tong teeth; 14. upper tong teeth;

21. a pressure handle is arranged; 22. a lower pressure handle; 23. an upper pressurizing tooth; 24. a lower pressing tooth; 25. a first protrusion; 26. a second protrusion; 27. a second rotating shaft; 28. a compression spring; 29. a metal stopper;

221. a stopper clamping groove;

261. a fixing plate; 262. a through hole;

291. and pulling a rope.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in FIGS. 1-2;

the embodiment of the utility model provides a high-strength pressurizing clamp aiming at a high-pressure test, which comprises:

the main pliers 1 comprises an upper pliers handle 11 and a lower pliers handle 12, wherein one end of the upper pliers handle 11 extends to form a lower pliers tooth 13, one end of the lower pliers handle 12 corresponding to the lower pliers tooth 13 extends to form an upper pliers tooth 14, the joint of the upper pliers handle 11 and the lower pliers tooth 13 and the joint of the lower pliers handle 12 and the upper pliers tooth 14 are connected through a first rotating shaft (not shown), and the lower pliers tooth 13, the upper pliers tooth 14, the upper pliers handle 11 and the lower pliers handle 12 can synchronously approach or depart from each other along the first rotating shaft respectively;

the auxiliary pressurizing mechanism 2 comprises an upper pressurizing handle 21 and a lower pressurizing handle 22, an upper pressurizing tooth 23 extends from one end of the upper pressurizing handle 21, a lower pressurizing tooth 24 extends from one end of the lower pressurizing handle 22 corresponding to the upper pressurizing tooth 23, a first protrusion 25 is arranged at the joint of the upper pressurizing handle 21 and the upper pressurizing tooth 23, a second protrusion 26 is arranged at the joint of the lower pressurizing handle 22 and the lower pressurizing tooth 24, the first protrusion 25 and the second protrusion 26 are connected through a second rotating shaft 27, the upper pressurizing tooth 23 is arranged above the upper tong teeth 14, the lower pressurizing tooth 24 is arranged below the lower tong teeth 13, and a compressing spring 28 is arranged between the upper pressurizing handle 21 and the lower pressurizing handle 22.

The clamping grooves can be respectively formed in the top surface of the upper tong teeth 14 and the bottom surface of the lower tong teeth 13, the bottom surface of the upper pressurizing teeth 23 and the top surface of the lower pressurizing teeth 24 can be respectively clamped with another clamping groove, when the pliers are in operation, the clamping groove in the top surface of the upper tong teeth 14 is clamped with another clamping groove in the bottom surface of the upper pressurizing teeth 23, the clamping groove in the bottom surface of the lower tong teeth 13 is clamped with another clamping groove in the top surface of the lower pressurizing teeth 23, so that the auxiliary pressurizing mechanism 2 is matched with the main tong 1, the recovery of the compression spring 28 applies acting forces to the upper pressurizing handle 21 and the lower pressurizing handle 22 respectively, the upper pressurizing handle 21 and the lower pressurizing handle 22 are separated outwards, the upper pressurizing teeth 14 and the lower tong teeth 13 are clamped by the upper pressurizing teeth 23 and the lower pressurizing teeth 24, and the falling risk is effectively avoided.

A fixing plate 261 is disposed at the bottom of the second protrusion 26 and near the lower pressure handle 22, the top end of the pressure spring 28 is connected to the inner sidewall of the upper pressure handle 21, and the bottom end of the pressure spring 28 is connected to the top surface of the fixing plate 261. The fixing plate 261 is provided with a through hole 262, a metal stopper 29 is arranged below the fixing plate 261, the metal stopper 29 is connected with the inner wall of the upper pressurizing handle 21 through a pull rope 291, and the pull rope 291 penetrates through the through hole 262 and the compression spring 28. The diameter of the through hole 262 is smaller than the diameter of the pressing spring 28, and the through hole 262 is located below the pressing spring 28. The inside of the lower pressurizing handle 22 is provided with a stopper clamping groove 221, the metal stopper 29 can be clamped into the stopper clamping groove 221, and the stopper clamping grooves 221 can be provided in plurality.

The second protrusion 26, the lower pressing handle 22 and the fixing plate 261 are of an integrally formed structure, and the restoring of the compression spring 28 applies acting force to the fixing plate 261, so that the lower pressing handle 22 is driven outwards, and the lower tong teeth 13 and the upper tong teeth 14 are clamped; the metal stopper 5 is a metal block or a metal ball. When the wire needs to be changed, the upper pressing handle 2 and the lower pressing handle 22 are forced to approach each other, the metal stopper 29 is clamped into the stopper clamping groove 221, the metal stopper 29 is positioned above the stopper clamping groove 221 in the pressing state, when the metal stopper 29 is clamped into the stopper clamping groove 221, the upper pressing handle 21 and the lower pressing handle 22 approach each other through the pull rope 291, and even if the pressing teeth 23 and the lower pressing teeth 24 are kept separated, the pressing on the upper tong teeth 14 and the lower tong teeth 13 is stopped, and the main tong 1 can be taken down. The bottom wall of the stopper clamping groove 221 can be provided with a push rod, the push rod penetrates through the lower pressing handle 22 and is connected with the button, and the metal stopper 29 can be ejected out of the stopper clamping groove 221 by pressing the button through the push rod for reuse.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. A high strength compression clamp for high pressure testing, comprising:

the main pliers (1) comprises an upper pliers handle (11) and a lower pliers handle (12), one end of the upper pliers handle (11) extends to form a lower pliers tooth (13), one end of the lower pliers handle (12), which corresponds to the lower pliers tooth (13), extends to form an upper pliers tooth (14), the joint of the upper pliers handle (11) and the lower pliers tooth (13) and the joint of the lower pliers handle (12) and the upper pliers tooth (14) are connected through a first rotating shaft, and the lower pliers tooth (13) and the upper pliers tooth (14) as well as the upper pliers handle (11) and the lower pliers handle (12) can synchronously approach or depart along the rotating shaft respectively;

an auxiliary pressure mechanism (2), the auxiliary pressure mechanism (2) comprises an upper pressure handle (21) and a lower pressure handle (22), one end of the upper pressure handle (21) extends to form an upper pressure tooth (23), one end of the lower pressure handle (22) corresponding to the upper pressure tooth (23) extends to form a lower pressure tooth (24), the joint of the upper pressurizing handle (21) and the upper pressurizing teeth (23) is provided with a first bulge (25), the joint of the lower pressure handle (22) and the lower pressure tooth (24) is provided with a second bulge (26), the first bulge (25) and the second bulge (26) are connected through a second rotating shaft (27), the upper pressurizing teeth (23) are arranged above the upper tong teeth (14), the lower pressurizing teeth (24) are arranged below the lower tong teeth (13), a compression spring (28) is arranged between the upper pressure handle (21) and the lower pressure handle (22).

2. The high-strength pressurizing clamp for the high-pressure test according to claim 1, wherein a fixing plate (261) is arranged at the bottom of the second protrusion (26) and at a position close to the lower pressurizing handle (22), the top end of the pressure spring (28) is connected with the inner side wall of the upper pressurizing handle (21), and the bottom end of the pressure spring (28) is connected with the top surface of the fixing plate (261).

3. The high-strength pressurizing clamp aiming at the high-pressure test is characterized in that the fixing plate (261) is provided with a through hole (262), a metal stopper (29) is arranged below the fixing plate (261), the metal stopper (29) is connected with the inner wall of the upper pressurizing handle (21) through a pull rope (291), and the pull rope (291) penetrates through the through hole (262) and the compression spring (28).

4. A high-strength pressing jaw for high-pressure test according to claim 3, characterized in that the diameter of said through hole (262) is smaller than the diameter of the pressing spring (28), and the through hole (262) is located below the pressing spring (28).

5. The high-strength pressurizing clamp for the high-voltage test according to claim 4, wherein a stopper clamping groove (221) is formed in the lower pressurizing handle (22), and the metal stopper (29) can be clamped in the stopper clamping groove (221).