O-t-CO test device of special protection device for lightning protection device

Abstract

The utility model discloses an O-t-CO test device of a special protection device for a lightning protection device, which belongs to the technical field of surge protectors and comprises a mounting frame. The equipment main body comprises a lightning protection device, a driving air cylinder and a connecting pipe, and the lightning protection device and the driving air cylinder are connected through the connecting pipe; the cutting-off assembly comprises a cutting-off rod, a rotating rod, a mounting panel and a telescopic air cylinder, the cutting-off rod is connected to the rotating rod, and the end, connected with the rotating rod, of the cutting-off rod is rotationally connected with the mounting panel; according to the utility model, through the arrangement of the cut-off assembly, in the test process, if an abnormal condition of overcurrent or overvoltage occurs, the telescopic cylinder drives the first locking column to move along the axial direction of the first locking column and towards the direction far away from the locking piece, the locking piece and the first locking column are separated from each other, and the cut-off rod rotates under the action of gravity, so that the cut-off rod is cut off. One end part of the cutting rod moves downwards, and the cutting sawteeth cut off the connecting pipe, so that the operation is rapid, and the damage to equipment or the threat to the safety of testers are effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of surge protection device, concretely relates to a lightning protection device special protection device's O-t-CO test device. BACKGROUND

[0002] The lightning protection device is a device for protecting electrical and electronic equipment from surge damage; the O-t-CO test device is used for testing the performance of the lightning protection device under the action of operating impulse current; the tester first installs the lightning protection device into the test circuit and sets the parameters of the impulse current according to the specifications of the lightning protection device; then starts the current generator to apply the specified impulse current to the lightning protection device; finally, the tester records the relevant parameters after the test using the data acquisition equipment.

[0003] During the test, the air cylinder is usually used to simulate or assist the mechanical action of the lightning protection device, especially when performing fast closing and opening operations, the air cylinder not only ensures the rapidity, accuracy and repeatability of the test, but also improves the safety and automation level of the test process; however, if abnormal conditions such as overvoltage or overcurrent occur, the air cylinder needs to be disconnected from the lightning protection device quickly to prevent damage to the equipment or threaten the safety of the operator; in addition, the test current is usually as high as hundreds of kiloamperes, according to the electromagnetic effect, a strong magnetic field will be generated near the lightning protection device protection device, which will affect the stability of the test signal and cause the O-t-CO test device to fail, therefore, a lightning protection device special protection device's O-t-CO test device is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a lightning protection device special protection device's O-t-CO test device to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lightning protection device special protection device's O-t-CO test device, comprising:

[0006] A mounting rack;

[0007] A device main body is fixedly installed on the mounting rack, and the device main body comprises a lightning protection device, a driving air cylinder and a connecting pipe, wherein the lightning protection device and the driving air cylinder are connected through the connecting pipe;

[0008] A cutting assembly comprises a cutting rod, a rotating rod and a mounting panel, the mounting panel is fixedly installed on the mounting rack, the cutting rod is connected to the rotating rod, and the end part connected with the rotating rod is rotationally connected with the side face of the mounting panel away from the mounting rack.

[0009] As a preferred scheme, the cutting-off rod comprises a cutting-off saw tooth, and the cutting-off saw tooth faces the connecting pipe.

[0010] As a preferred scheme, the cutting-off assembly further comprises a locking member, and the locking member is rotationally connected with the cutting-off rod.

[0011] As a preferred scheme, the mounting panel comprises a first locking column capable of being extended and retracted, the cutting-off rod comprises a second locking column, the cutting-off assembly further comprises a telescopic cylinder mounted on the mounting frame, the locking member is clamped between the first locking column and the second locking column, and an end of the first locking column, which is away from the locking member, is connected with an output shaft of the telescopic cylinder.

[0012] As a preferred scheme, the mounting panel further comprises a first fixing column, the rotating rod has a second fixing column at an end, which is away from the cutting-off rod, and the cutting-off assembly further comprises a tension spring, which is connected with the first fixing column and the second fixing column.

[0013] As a preferred scheme, the cutting-off assembly further comprises a reset spring, which is connected between the locking member and the cutting-off rod.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a cutting-off assembly is arranged, cutting-off assembly includes cutting-off rod, rotating rod, mounting panel, cutting-off saw tooth and locking member, and mounting panel fixed mounting is installed on the mounting frame, and cutting-off rod is connected to rotating rod, and the end that cutting-off rod and rotating rod are connected is rotationally connected with the side face of mounting panel, which is away from the connecting mounting frame, cutting-off saw tooth faces the connecting pipe, locking member is rotationally connected with cutting-off rod, if the abnormal situation of overcurrent or overvoltage appears during the test, the connecting pipe between the lightning protection device and the driving cylinder needs to be disconnected quickly, the telescopic cylinder drives the first locking column to move along the axial direction and to the direction away from the locking member, so that the clamping between the locking member and the first locking column is separated, under the action of gravity, cutting-off rod rotates, and the end of cutting-off rod, which is away from the connecting rotating rod, moves downward, so that cutting-off saw tooth cuts the connecting pipe, thereby realizing the purpose of disconnecting the lightning protection device and the driving cylinder, and the operation is rapid, and the safety of equipment or test personnel is effectively prevented from being damaged.

[0016] The utility model discloses a telescopic cylinder is arranged, and the telescopic cylinder simulates the switching action of lightning protection device in a short time, that is, the switching of the disconnected and connected state, and the telescopic cylinder is arranged to replace the traditional motor-driven lightning protection device, so as to prevent the strong magnetic field around the lightning protection device due to electromagnetic effect when the large current flows through the lightning protection device, and the O-t-CO test fails, and the high stability and long service life of the O-t-CO test device are guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the utility model from one angle;

[0018] Figure 2 is a structural view of the cutting assembly of the utility model;

[0019] Figure 3 is a perspective view of the utility model from another angle; Figure 2 is a local enlarged view of part A of the utility model;

[0020] Figure 4 is a perspective view of the utility model from another angle.

[0021] In the figure: 1, mounting rack; 2, equipment main body; 21, lightning arrester; 22, driving cylinder; 23, connecting pipe; 3, cutting assembly; 31, cutting rod; 311, cutting sawtooth; 312, second locking column; 32, rotating rod; 321, second fixed column; 33, mounting panel; 331, first locking column; 332, first fixed column; 34, locking piece; 35, telescopic cylinder; 36, tension spring; 37, return spring. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with examples.

[0023] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept of the utility model belongs to the range required to be protected by the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a lightning arrester special protection device's O-t-CO test device, including:

[0025] Mounting rack 1;

[0026] Equipment main body 2, equipment main body 2 is fixedly installed in mounting rack 1, and equipment main body 2 includes lightning arrester 21, driving cylinder 22 and connecting pipe 23, wherein lightning arrester 21 and driving cylinder 22 are connected through connecting pipe 23;

[0027] Cutting assembly 3, cutting assembly 3 includes cutting rod 31, rotating rod 32 and mounting panel 33, mounting panel 33 is fixedly installed in mounting rack 1, cutting rod 31 is connected to rotating rod 32, and the end portion of cutting rod 31 and rotating rod 32 is rotatably connected with the side face of mounting panel 33 away from connecting mounting rack 1;

[0028] The cutting-off rod 31 comprises a cutting-off sawtooth 311, which is directed to the connecting pipe 23;

[0029] The cutting-off assembly 3 further comprises a locking piece 34, which is rotationally connected with the cutting-off rod 31;

[0030] The mounting panel 33 comprises a first locking column 331, which is retractable, the cutting-off rod 31 comprises a second locking column 312, the cutting-off assembly 3 further comprises a retractable cylinder 35, which is mounted on the mounting frame 1, the locking piece 34 is clamped between the first locking column 331 and the second locking column 312, and an end of the first locking column 331, which is away from the locking piece 34, is connected with an output shaft of the retractable cylinder 35;

[0031] The mounting panel 33 further comprises a first fixing column 332, the rotating rod 32 has a second fixing column 321 at an end, which is away from the cutting-off rod 31, the cutting-off assembly 3 further comprises a tension spring 36, which is connected with the first fixing column 332 and the second fixing column 321;

[0032] The cutting-off assembly 3 further comprises a reset spring 37, which is connected between the locking piece 34 and the cutting-off rod 31.

[0033] The working principle and use process of the utility model:

[0034] Before the tester carries out the O-t-CO test on the lightning protection device 21, firstly, the lightning protection device 21 and the driving cylinder 22 are connected through the connecting pipe 23, and the test circuit is connected; the driving cylinder 22 simulates the switching action of the lightning protection device 21 in a short time, that is, the switching of the off and on states, along with the short-circuit current passing through the lightning protection device 21, the tester observes whether the lightning protection device 21 appears breakdown or damage, and records the related parameters of the lightning protection device 21; the driving cylinder 22 is arranged to replace the traditional motor to drive the lightning protection device 21, so that when the large current flows through the lightning protection device 21, the O-t-CO test is prevented from failing due to the strong magnetic field generated near the lightning protection device 21 caused by the electromagnetic effect, and the high stability and long service life of the O-t-CO test device are ensured;

[0035] If abnormal conditions of overcurrent or overvoltage occur in the test process, the connecting pipe 23 between the lightning protection device 21 and the driving cylinder 22 needs to be rapidly disconnected; at this time, the retractable cylinder 35 drives the first locking column 331 to move along the axial direction of the first locking column 331 and in the direction away from the locking piece 34, so that the clamping between the locking piece 34 and the first locking column 331 is released, then under the action of gravity, the cutting-off rod 31 rotates, the end of the cutting-off rod 31, which is away from the rotating rod 32, moves downward, so that the cutting-off sawtooth 311 cuts off the connecting pipe 23, thereby achieving the purpose of disconnecting the lightning protection device 21 and the driving cylinder 22, the operation is rapid, and the safety of the equipment and the tester is effectively prevented from being damaged.

[0036] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An O-t-CO test device for a lightning protector dedicated protection device, characterized by, The utility model relates to a lightning protection device, including: Mounting frame (1); Device main body (2) is fixedly installed to mounting frame (1), and device main body (2) includes lightning protection device (21), drive cylinder (22) and connecting pipe (23), and lightning protection device (21) and drive cylinder (22) are connected through connecting pipe (23); Cutting assembly (3) includes cutting rod (31), rotating rod (32) and installation panel (33), installation panel (33) is fixedly installed to mounting frame (1), cutting rod (31) is connected to rotating rod (32), and the end that cutting rod (31) and rotating rod (32) are connected is rotatably connected with the side of installation panel (33) away from connecting mounting frame (1).

2. The O-t-CO test device for a protection device of a lightning protector according to claim 1, characterized by: Cutting rod (31) includes cutting saw tooth (311), and cutting saw tooth (311) is towards connecting pipe (23).

3. The O-t-CO test device for a protection device of a lightning protector according to claim 2, characterized by: Cutting assembly (3) further includes locking piece (34), and locking piece (34) is rotatably connected with cutting rod (31).

4. The O-t-CO test device for a protection device of a lightning protector according to claim 3, characterized by: Installation panel (33) includes first locking column (331) that can stretch out and draw back, and cutting rod (31) further includes second locking column (312), and cutting assembly (3) further includes telescopic cylinder (35), and telescopic cylinder (35) is installed to mounting frame (1), locking piece (34) is clamped between first locking column (331) and second locking column (312), and the end of first locking column (331) away from locking piece (34) is connected to the output shaft of telescopic cylinder (35).

5. The O-t-CO test device for a protection device of a lightning protector according to claim 4, characterized by: Installation panel (33) further includes first fixed column (332), and rotating rod (32) has second fixed column (321) at the end away from connecting cutting rod (31), and cutting assembly (3) further includes tensile spring (36), and tensile spring (36) is connected to first fixed column (332) and second fixed column (321).

6. The O-t-CO test device for a protection device of a lightning protector according to claim 5, characterized by: Cutting assembly (3) further includes reset spring (37), and reset spring (37) is connected between locking piece (34) and cutting rod (31).

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