Vacuum circuit breaker test tool

By designing a vacuum circuit breaker test fixture, using a clamp-type multimeter and a sulfur hexafluoride gas protective layer, the problems of unstable cable connection and arc damage during vacuum circuit breaker testing were solved, and stable suspension and safe testing were achieved.

CN223461671UActive Publication Date: 2025-10-21ZHEJIANG SANJUN ELECTRIC POWER ENG CO LTD
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Patent Information

Application Number
CN202422437157.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-10-21
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The existing vacuum circuit breaker test structure has unstable connections with wires and is prone to falling off, which cannot prevent arc damage to the equipment.

Method used

A vacuum circuit breaker test fixture was designed, including a clamp-type multimeter, test jaws, a support base, and an insulating support rod. The cable is securely suspended by the sealing buckle design of the test jaws, and the sulfur hexafluoride gas tank in the support base controls the gas release to form a protective layer to prevent arcing.

Benefits of technology

It achieves stable suspension of cables, ensures the accuracy of test data and the safety of equipment, prevents arc damage, and improves the safety and stability of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a vacuum circuit breaker test tool, which comprises a clamp-type universal meter, a detection jaw, a support base and an insulation support rod, and is characterized in that the detection jaw is fixedly arranged at the top of the clamp-type universal meter, the support base is fixedly arranged at the bottom of the clamp-type universal meter, and the insulation support rod is fixedly arranged at the bottom of the support base; the clamp-type universal meter is hung on the cable through the detection jaw. Due to the arrangement of the detection jaw and the supporting base, connection with an electric wire is stable, falling-off is avoided, and equipment can be prevented from being damaged by electric arcs.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum circuit breaker test technical field especially relates to a vacuum circuit breaker test frock. BACKGROUND

[0002] In modern power system, vacuum circuit breaker as an important switch equipment, is widely used in high voltage and medium voltage power line. Its main function is when the power system fault, cut off the current quickly, protect the safety of equipment and power grid. With the increasing demand for electricity and the complexity of power system, the performance requirement of vacuum circuit breaker is increasingly strict. This requires in the production, installation and maintenance process of equipment, carry out comprehensive detection and test. But the existing vacuum circuit breaker test structure still has with the electric wire connection unstable, easy to fall off, cannot prevent the problem of arc damage equipment.

[0003] Therefore, it is very necessary to invent a vacuum circuit breaker test frock. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problem, the utility model provides a vacuum circuit breaker test frock to solve the existing vacuum circuit breaker test structure still has with the electric wire connection unstable, easy to fall off, cannot prevent the problem of arc damage equipment. A kind of vacuum circuit breaker test frock, including clamp type multimeter, detection jaw, support base and insulating support rod, wherein: detection jaw is fixedly installed at the top of clamp type multimeter, and support base is fixedly installed at the bottom of clamp type multimeter, and the insulating support rod is fixedly installed at the bottom of support base.

[0005] The clamp type multimeter is hung on the cable by the detection jaw.

[0006] The detection jaw includes positioning jaw, latching hole, suspension push rod and connecting bracket, and the positioning jaw is fixedly installed at both ends of the top of clamp type multimeter, and the latching hole is opened in the inside of one positioning jaw;The suspension push rod is fixedly installed on the other set of positioning jaw by the connecting bracket, and slides into the inside of the latching hole.

[0007] The support base includes support frame, containing box, bottom support plate, gas tank, gas outlet pipe and control valve, and the support frame is fixedly installed at the bottom of clamp type multimeter, and the containing box is fixedly installed at the bottom of both ends of support frame;The bottom support plate is fixedly installed at the bottom of containing box, and the gas tank is placed in the inside of containing box;The top of gas tank is provided with gas outlet pipe, and the opening and closing are controlled by control valve.

[0008] The detection jaw inside is provided with two sets of positioning jaws, and the positioning jaws can form a sealed buckle through a hanging push rod, and the detection jaw as a whole can be hung on the cable through the sealed buckle; the buckle formed by the detection jaw can be controlled to open and close through the hanging push rod, and has the following effects: ① hanging effect: the detection jaw cooperates with the hanging push rod through the positioning jaws inside and the latching holes to form a sealable buckle that can be opened and closed, so that the clamp-on multimeter can be stably hung on the cable to be detected; ② stable clamping: the design of the positioning jaws ensures that the jaws can stably clamp the cable, prevent sliding or loosening during detection, and ensure the accuracy of data; ③ opening and closing control: the hanging push rod controls the opening and closing of the detection jaw through the connecting bracket, so that the detection jaw can be conveniently mounted and dismounted, and the operation is simple.

[0009] The support base connects the clamp-on multimeter and the insulating support rod together, and the gas tank is provided with two groups, and the inside of the gas tank is filled with sulfur hexafluoride gas; the gas tank can discharge sulfur hexafluoride gas outward through the control of the control valve, and form a short-time sulfur hexafluoride gas group outside the detection area, and has the following effects: ① fixing and supporting function: the support base connects the clamp-on multimeter and the insulating support rod together, and provides a stable support structure for the whole device, and ensures the stability and safety of the equipment during testing; ② gas release control: the support base controls the opening and closing of the gas tank through the gas outlet pipe and the control valve, can accurately control the release of sulfur hexafluoride gas, form a short-time sulfur hexafluoride gas group outside the test area, prevent the generation of electric arc, and protect the equipment.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The detection jaw has the following effects: ① hanging effect: the detection jaw cooperates with the hanging push rod through the positioning jaws inside and the latching holes to form a sealable buckle that can be opened and closed, so that the clamp-on multimeter can be stably hung on the cable to be detected; ② stable clamping: the design of the positioning jaws ensures that the jaws can stably clamp the cable, prevent sliding or loosening during detection, and ensure the accuracy of data; ③ opening and closing control: the hanging push rod controls the opening and closing of the detection jaw through the connecting bracket, so that the detection jaw can be conveniently mounted and dismounted, and the operation is simple.

[0012] 2. The support base has the following effects: ① fixing and supporting function: the support base connects the clamp-on multimeter and the insulating support rod together, and provides a stable support structure for the whole device, and ensures the stability and safety of the equipment during testing; ② gas release control: the support base controls the opening and closing of the gas tank through the gas outlet pipe and the control valve, can accurately control the release of sulfur hexafluoride gas, form a short-time sulfur hexafluoride gas group outside the test area, prevent the generation of electric arc, and protect the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model.

[0014] Figure 2 It is the A place enlarged view of the utility model.

[0015] Figure 3 It is the B place enlarged view of the utility model.

[0016] In the drawing,

[0017] Clamp type multimeter 1, detection jaw 2, positioning jaw 21, latching hole 22, hanging push rod 23, connecting bracket 24, supporting base 3, supporting frame 31, containing box 32, bottom support plate 33, gas tank 34, gas outlet pipe 35, control valve 36, insulating support rod 4, cable 5. DETAILED DESCRIPTION

[0018] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the protection scope of the utility model.

[0019] As shown in the accompanying Figure 1 to the accompanying Figure 3 As shown.

[0020] The utility model provides a kind of vacuum circuit breaker test tool, including clamp type multimeter 1, detection jaw 2, supporting base 3 and insulating support rod 4, wherein: detection jaw 2 is fixedly installed at the top of clamp type multimeter 1, and supporting base 3 is fixedly installed at the bottom of clamp type multimeter 1, and the insulating support rod 4 is fixedly installed at the bottom of supporting base 3.

[0021] Clamp type multimeter 1 is hung on cable 5 by detection jaw 2.

[0022] Detection jaw 2 includes positioning jaw 21, latching hole 22, hanging push rod 23 and connecting bracket 24, and positioning jaw 21 is fixedly installed at the two ends of the top of clamp type multimeter 1, and the latching hole 22 is opened in the inside of one positioning jaw 21;Said hanging push rod 23 is fixedly installed on another set of positioning jaw 21 by connecting bracket 24, and is slid to the inside of latching hole 22.

[0023] The support base 3 includes a support frame 31, a containing box 32, a bottom support plate 33, a gas tank 34, a gas outlet pipe 35 and a control valve 36, and the support frame 31 is fixedly installed at the bottom of the clamp-on multimeter 1, and the containing box 32 is fixedly installed at the bottom of both ends of the support frame 31; the bottom support plate 33 is fixedly installed at the bottom of the containing box 32, and the gas tank 34 is placed in the containing box 32; the top of the gas tank 34 is provided with the gas outlet pipe 35, and the opening and closing of the gas outlet pipe 35 is controlled by the control valve 36.

[0024] The positioning jaws 21 inside the detection jaws 2 are provided in two groups, and the positioning jaws 21 can form a sealed buckle through the hanging push rod 23, and the detection jaws 2 as a whole can be hung on the cable 5 through the sealed buckle; the buckle formed by the detection jaws 2 can be controlled to open and close through the hanging push rod 23.

[0025] The support base 3 connects the clamp-on multimeter 1 and the insulating support rod 4 together, and the gas tank 34 is provided in two groups, and the inside of the gas tank 34 is filled with sulfur hexafluoride gas; the sulfur hexafluoride gas in the gas tank 34 can be discharged outwardly through the control of the control valve 36, and a short-time sulfur hexafluoride gas group is formed outside the detection area.

[0026] The working principle of the vacuum circuit breaker test tool mainly includes the following steps, aiming to effectively detect the vacuum circuit breaker while ensuring safety and accuracy.

[0027] 1. Hanging and fixing:

[0028] The core component of the test tool is the clamp-on multimeter 1, which is provided with the detection jaws 2 at the top, and the detection jaws can stably clamp on the cable 5 to be tested during testing through the unique design, and the cooperation of the positioning jaws 21 inside the detection jaws and the latching holes 22 forms a sealed buckle, ensuring the stability and accuracy of the clamp-on multimeter during testing.

[0029] 2. Electrical parameter detection:

[0030] Once the detection jaws are successfully connected with the cable 5, the clamp-on multimeter can start real-time monitoring of the electrical parameters in the cable, including voltage, current and other key electrical characteristics, and the data will be transmitted to the display interface in real time for analysis by the operator.

[0031] 3. Gas protection release:

[0032] In order to prevent the generation of electric arc during testing, the gas tank 34 in the support base 3 is filled with sulfur hexafluoride gas, and through the control valve 36, the operator can control the release of the gas as needed. At the beginning of the test, the sulfur hexafluoride gas will be released from the gas outlet pipe 35 to form a protective layer, inhibit the potential electric arc phenomenon, and ensure the safety of the equipment.

[0033] 4. Test completion and data recording:

[0034] After the test is completed, the detection jaws can be quickly opened, the data recording of the multimeter can be saved, and subsequent analysis and processing can be performed through related software. At this time, the release of gas can also be stopped to ensure the safety of the equipment and the environment.

[0035] 5. Convenient operation and maintenance:

[0036] The tooling design takes into account the convenience and safety of operation. The sliding design of the suspension push rod 23 makes the opening and closing of the detection jaws more smooth, improving the operation efficiency. At the same time, the insulating support rod 4 further enhances the safety of the equipment, preventing accidental electric shock of the operator.

[0037] Through the above steps, the vacuum circuit breaker test tooling can efficiently and accurately complete the detection task of the vacuum circuit breaker, greatly improving the safety and stability of the detection, and meeting the high standard requirements of modern power systems for equipment detection.

[0038] Any similar technical solution designed by using the technical solution of the present application or inspired by the technical solution of the present application, and achieving the above technical effects, falls within the protection scope of the present application.

Claims

1. A vacuum circuit breaker test fixture, characterized by: The utility model provides a kind of clamp-on multimeter (1), detection jaw (2), support base (3) and insulating support rod (4), wherein: detection jaw (2) is fixedly installed at the top of clamp-on multimeter (1), and support base (3) is fixedly installed at the bottom of clamp-on multimeter (1), and the insulating support rod (4) is fixedly installed at the bottom of support base (3).

2. A vacuum circuit breaker testing fixture as claimed in claim 1, wherein: The clamp-on multimeter (1) is hung on the cable (5) by the detection jaw (2).

3. The vacuum circuit breaker testing fixture of claim 1, wherein: The detection jaw (2) includes positioning jaw (21), latching hole (22), hanging push rod (23) and connecting bracket (24), and the positioning jaw (21) is fixedly installed at both ends of the top of clamp-on multimeter (1), and the latching hole (22) is opened in the inside of one positioning jaw (21);The hanging push rod (23) is fixedly installed on another set of positioning jaw (21) by the connecting bracket (24), and slides into the inside of latching hole (22).

4. The vacuum circuit breaker testing fixture of claim 1, wherein: The support base (3) includes support frame (31), containing box (32), bottom support plate (33), gas tank (34), gas outlet pipe (35) and control valve (36), and the support frame (31) is fixedly installed at the bottom of clamp-on multimeter (1), and the containing box (32) is fixedly installed at the bottom of both ends of support frame (31);The bottom support plate (33) is fixedly installed at the bottom of containing box (32), and the gas tank (34) is placed in the inside of containing box (32);The top of gas tank (34) is provided with gas outlet pipe (35), and the opening and closing are controlled by control valve (36).

5. A vacuum circuit breaker testing fixture as claimed in claim 3, wherein: The positioning jaw (21) in the inside of detection jaw (2) adopts two groups, and the positioning jaw (21) can form a sealed buckle by hanging push rod (23), and the whole detection jaw (2) can be hung on the cable (5) by the sealed buckle;The buckle formed by detection jaw (2) can be controlled to open and close by hanging push rod (23).

6. A vacuum circuit breaker testing fixture as claimed in claim 4, wherein: The support base (3) connects clamp-on multimeter (1) and insulating support rod (4) together, and the gas tank (34) adopts two groups, and the inside of gas tank (34) is filled with sulfur hexafluoride gas;The sulfur hexafluoride gas can be discharged outward by the control of control valve (36) of gas tank (34), and a short-time existing sulfur hexafluoride gas group is formed outside the detection area.