CN108445358B - High-safety arc characteristic detection device - Google Patents

Abstract

The invention discloses an arc characteristic detection device with high safety, which comprises a detection box, wherein a detection box door is arranged on the detection box, a fixed cylinder is fixedly arranged on a bottom plate in the detection box, a fixed detection strip is detachably arranged in the fixed cylinder, the top of the detection box is rotatably provided with a rotating ring, the high-safety arc characteristic detection and display device in the application, when the movable detection strip is installed, the protective cover slides upwards, the mouth part of the V-shaped spring clamp is opened, the movable detection strip is placed into the V-shaped spring clamp, the protective cover is loosened, under the elastic force of the spring, the protective cover slides downwards, the mouth part of the V-shaped spring clamp is closed to clamp the movable detection strip, when detecting, the detection case is in confined state, and the ball cover can be driven to slide on rotating the lead screw to the rotation lead screw when rotating, and the ball cover can drive the support ring and reciprocate together when sliding on rotating the lead screw.

Description

A safe arc characteristic detection device

technical field

The present application belongs to the technical field of arcs, and in particular, relates to an arc characteristic detection device with high safety.

Background technique

Arc is a gas discharge phenomenon, an instantaneous spark created by the passage of an electric current through some insulating medium, such as air. Arc is a self-sustaining gas conduction (electrical conduction in ionized gas), most of its carriers are electrons generated by primary electron emission, and the metal surface of the contact is caused by primary electron emission (thermoionic emission, field emission or photoemission). ) causes electrons to escape, and gas atoms or molecules in the gap generate electrons and ions due to ionization (collision ionization, photoionization, and thermal ionization). In addition, bombardment of the emitting surface with electrons or ions can in turn cause secondary electron emission. When the ion concentration in the gap is large enough, the gap is electrically broken down and arcing occurs.

The high temperature of the arc may burn the electrical contacts and other components around the contacts, and may also cause fire or even explosion hazards to oil-filled equipment, endanger the safe operation of the power system, and cause casualties and heavy property losses. A gas conduction phenomenon, so in switching appliances, although the switch contacts have been separated, as long as there is an arc between the contacts, the circuit will not be disconnected, and the current will still exist. The circuit can be truly disconnected until the arc is completely extinguished. , the existence of the arc shortens the time for the switchgear to disconnect the fault circuit, and aggravates the harm of short-circuit faults in the power system. Because the arc can move under the action of electric power and heat, it is easy to cause arcing short circuit, hurt people or cause accidents to expand. Therefore, , To ensure the safe operation of the power system, the switchgear must quickly and reliably extinguish the arc during normal operation. The vacuum circuit breakers, SF6 circuit breakers, load switches and other switching appliances in the high and low voltage switchgear have arc extinguishing chambers or arc extinguishing tubes, in order to quickly extinguish the arc when an arc occurs to ensure the safety of the equipment.

In order to have a deeper understanding of the characteristics of the arc, an arc detection device is produced in the prior art. The arc detection device in the prior art mainly includes a detection plate, one end of the detection plate is fixed with a fixed block, and the other end of the detection plate slides Install the sliding block, the movement of the sliding block is driven by the motor, the fixed block and the sliding block are electrically connected to the positive and negative poles of the power supply respectively, and the sliding block is driven by the motor to drive the sliding block and the fixed block to contact and separate to generate an arc, but due to the drive of the motor It is inconvenient to control, and it is difficult to control the moving speed and distance of the sliding block. During the experiment, when the arc generated by the contact of the positive and negative electrodes is large, there are potential safety hazards, and the arc detection device in the prior art is difficult to use the naked eye when the arc is small. Direct detection, for this reason, we propose a high-safety arc characteristic detection device to solve the above problems.

SUMMARY OF THE INVENTION

In view of this, what this application needs to solve is that the drive of the motor in the conventional technology is inconvenient to control, and it is difficult to control the moving speed and distance of the sliding block, and the characteristics of the arc are related to the material. There is also inconvenience when replacing, and when the arc generation is small, it is difficult to directly observe the technical problem. The invention provides an arc characteristic detection device with high safety. Compared with the conventional technology, the arc detection device of the invention is easy to control, has high safety and is easy to observe.

In order to solve the above-mentioned technical problems, the present invention is realized through the following technical solutions:

The invention provides an arc characteristic detection device with high safety, comprising a detection box, a detection box door is installed on the detection box, a fixed cylinder is fixedly installed on the bottom plate inside the detection box, and the fixed cylinder can be installed inside the detection box. A fixed detection strip is disassembled and installed, a swivel ring is rotatably installed on the top of the detection box, the swivel ring is integrally formed with the position near the upper end of the rotating screw rod, and a ball sleeve is rotatably installed on the rotating screw rod. The ball sleeve is rotatably clamped in the support ring, the back of the support ring is fixedly connected with the guide slider, the guide slider is slidably installed on the guide slide rail, the guide slide rail is fixedly connected with the detection box, and guides The lower end of the surface of the slide rail is fixedly provided with a support bearing, the lower end of the rotating screw rod is installed in the support bearing, the front surface of the support ring is fixedly connected with the movable cylinder, and the side surface of the movable cylinder is fixedly connected with one end of the protective gas pipe through , and the other end of the protective gas pipe is connected with the inside of the argon gas cylinder, the argon gas cylinder is fixedly installed in the detection box, a protective cover is slidably installed under the inside of the movable cylinder, and a movable cylinder is detachably installed in the movable cylinder. The detection strip, a V-shaped spring clip is fixedly installed in the movable cylinder, and both sides of the opening of the V-shaped spring clip are in close contact with the inner edge of the end port of the protective cover away from the movable cylinder, and the movable detection strip is clamped in the V-shaped spring clip. type spring clip.

As a preferred technical solution of the invention, in a possible implementation manner, the lower part of the front of the detection box is an opening structure, two sets of slide rails are fixedly installed on both sides of the opening structure, and the detection box door is slidably installed in two sets of rails.

As a preferred technical solution of the invention, in a possible implementation manner, an observation port is opened on the detection box door, and an observation convex mirror is fixedly installed in the observation port, and the position of the observation convex mirror and the fixed cylinder is correspond.

As a preferred technical solution of the invention, in a possible implementation, a support cylinder is fixedly installed through the surface of the detection box, the swivel ring is rotatably installed in the support cylinder, and the lower end of the rotating screw rod through the support barrel.

As a preferred technical solution of the invention, in a possible implementation, the diameter of the protective cover is smaller than the inner diameter of the fixed cylinder, the bottom of the protective cover is integrally formed with a retaining ring, and the protective cover is sleeved with a spring , the spring is clamped between the retaining ring and the movable cylinder.

As a preferred technical solution of the invention, in a possible implementation manner, the movable cylinder and the fixed cylinder are both arc-proof transparent structures, the axes of the movable cylinder and the fixed cylinder are coincident, and the mouth of the fixed cylinder is fixed A sealing ring is installed.

As a preferred technical solution of the invention, in a possible implementation, a turntable is fixedly installed on the upper end of the rotating screw, the turntable has a regular polygon structure, and the surface of the turntable is a non-slip rubber structure.

As a preferred technical solution of the invention, in a possible implementation manner, an electrical connection clip is fixed in the fixing cylinder, and the fixed detection strip is detachably connected to the electrical connection clip.

Compared with the prior art, the present application can obtain the following technical effects:

1. In the high-safety arc characteristic detection and display device in this application, when installing the activity detection strip, slide the protective cover upward, open the mouth of the V-shaped spring clip, and put the activity detection strip into the V-shaped spring. In the clip, loosen the protective cover, under the elastic force of the spring, the protective cover slides down, the mouth of the V-shaped spring clip is closed, and the activity detection strip is clamped;

2. In the high-safety arc characteristic detection and display device in this application, when the detection is performed, the detection box is in a closed state, and the rotating screw can drive the ball sleeve to slide on the rotating screw, and the ball sleeve is in the closed state. When the rotating screw rod slides up, it can drive the support ring to move up and down together, which is easy to control the contact and separation of the fixed detection strip and the movable detection strip;

3. In the high-safety arc characteristic detection and display device in this application, the guide slider is slidably installed on the guide rail, and the guide slider mainly plays a guiding role to prevent the support ring from rotating together with the ball sleeve;

4. In the arc characteristic detection and display device with high safety in this application, when the arc is detected, the movable cylinder slides down, the head of the movable detection strip contacts the head of the fixed detection strip, and the rotating screw is rotated at this time. , lift the movable detection strip, and repeat the operation to generate an electric arc. During this process, you can manually open the gas valve of the argon gas cylinder, and fill the movable cylinder and the fixed cylinder with argon gas, which plays a protective role;

5. In the high-safety arc characteristic detection and display device in this application, when the movable cylinder is lowered, the protective cover is lowered together. When the protective cover is in contact with the fixed cylinder, the movable cylinder can continue to move in a small range. The fixed cylinder is isolated from the outside, and the protection effect is good.

Of course, any product implementing the present application does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a schematic structural diagram of the opening of a detection box door of a highly safe arc characteristic detection device according to an embodiment of the present application;

2 is a schematic diagram of a closed structure of a detection box door of a high-safety arc characteristic detection device according to an embodiment of the present application;

3 is a schematic diagram of the internal structure of an arc characteristic detection device with high safety according to an embodiment of the present application;

4 is a front view of the internal structure of an arc characteristic detection device with high safety according to an embodiment of the present application;

Fig. 5 is the enlarged view at A of Fig. 4 in this application;

6 is a schematic diagram of the installation structure of a support ring of an arc characteristic detection device with high safety according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a movable detection bar in an arc characteristic detection device with high safety according to an embodiment of the present application.

In the picture: 1 detection box, 2 fixed cylinder, 3 fixed detection strip, 4 rotating ring, 5 rotating screw, 6 ball sleeve, 7 support ring, 8 guide slider, 9 guide rail, 10 support bearing, 11 movable cylinder , 12 protective gas tubes, 13 argon gas cylinders, 14 protective covers, 15 activity detection strips, 16 V-shaped spring clips, 17 slide rails, 18 observation ports, 19 observation convex mirrors, 20 support cylinders, 21 retaining rings, 22 springs, 23 Turntable, 24 electrical connection clips.

Detailed ways

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve technical effects in the present application.

As shown in Figures 1-7, a high-safety arc characteristic detection device of the present invention comprises a detection box 1, a detection box door is installed on the detection box 1, and the front side of the detection box 1 is an opening structure. Two sets of slide rails 17 are fixedly installed on both sides, and the detection box door is slidably installed in the two sets of slide rails 17. The detection box 1 is a non-transparent structure. When testing, the detection box 1 is in a closed state. When the strip 3 and the activity detection strip 15 are connected, you can directly slide up and open the detection box door, which is convenient for operation.

An electrical connection clip 24 is fixed in the fixing cylinder 2, the fixed detection strip 3 is detachably connected to the electrical connection clip 24, and the electrical connection clip 24 is electrically connected to one end of the external power supply. Through the setting of the electrical connection clip 24, It is convenient to simply fix the fixed detection strip 3 , and the fixed detection strip 3 is electrically connected with the electrical connection clip 24 .

The inspection box door is provided with an observation port 18, and an observation convex mirror 19 is fixedly installed in the observation port 18. The observation convex mirror 19 corresponds to the position of the fixed cylinder 2. The detection box 1 is a non-transparent structure. After the detection box door is closed, it can be The inside of the detection box 1 is observed through the observation port 18 , because the inside of the detection box 1 is relatively dark, it is easy to observe the arc, and the observation convex mirror 19 can magnify the arc for easy observation.

A fixed cylinder 2 is fixedly installed on the bottom plate inside the detection box 1, a fixed detection strip 3 is detachably installed in the fixed cylinder 2, a rotating ring 4 is rotatably installed on the top of the detection box 1, and a support is fixedly installed through the surface of the detection box 1. The cylinder 20, the swivel ring 4 can be rotatably installed in the support cylinder 20, the side of the swivel ring 4 is embedded with a ball groove, and the ball groove is rolled and clamped with balls, which is convenient for the rotation of the swivel ring 4. The support cylinder 20 is mainly for the rotating screw. 5 plays a supporting role, the lower end of the rotating screw 5 penetrates the support cylinder 20, the upper end of the rotating screw 5 is fixedly installed with a turntable 23, the turntable 23 is a regular polygon structure, and the surface of the turntable 23 is a non-slip rubber structure, through the turntable 23 The setting is convenient to manually rotate the screw 5.

The rotating ring 4 is integrally formed with the rotating screw 5 near the upper end. The rotating screw 5 is rotatably mounted with a ball sleeve 6. When the rotating screw 5 rotates, the ball sleeve 6 can be driven to slide on the rotating screw 5. The sleeve 6 can be rotatably clamped in the support ring 7, the ball sleeve 6 can drive the support ring 7 to move up and down together when sliding on the rotating screw 5, the back of the support ring 7 is fixedly connected with the guide slider 8, and the guide slider 8 slides Installed on the guide slide rail 9 , the guide slide block 8 mainly plays a guiding role, preventing the support ring 7 from rotating together with the ball sleeve 6 .

The guide rail 9 is fixedly connected with the detection box 1 , and the lower end of the surface of the guide rail 9 is fixedly provided with a support bearing 10 , the lower end of the rotating screw 5 is installed in the support bearing 10 , and the support bearing 10 plays the role of supporting the rotating screw 5 . effect.

The front surface of the support ring 7 is fixedly connected with the movable cylinder 11 , and a protective cover 14 is slidably installed under the movable cylinder 11 . The diameter of the protective cover 14 is smaller than the inner diameter of the fixed cylinder 2 , and the bottom of the protective cover 14 is integrally formed with a blocking ring 21 , and A spring 22 is sleeved on the protective cover 14, and the spring 22 is clamped between the blocking ring 21 and the movable cylinder 11. The movable cylinder 11 is detachably installed with a movable detection strip 15, and the movable cylinder 11 is fixedly installed with a V-shaped spring clip 16. , the mouth of the V-shaped spring clip 16 is kept open, the two sides of the opening of the V-shaped spring clip 16 are in close contact with the inner edge of the end port of the protective cover 14 away from the movable cylinder 11, and the activity detection strip 15 is clamped in the V-shaped Inside the spring clip 16, when installing the activity detection strip 15, slide the protective cover 14 upward, the mouth of the V-shaped spring clip 16 is opened, put the activity detection strip 15 into the V-shaped spring clip 16, and release the protection For the cover 14, under the elastic force of the spring 22, the protective cover 14 slides down and squeezes the mouth of the V-shaped spring clip 16 inward, so that the mouth of the V-shaped spring clip 16 is closed and clamps the activity detection strip 15.

The side of the movable cylinder 11 is connected through and fixed to one end of the protective gas pipe 12, and the other end of the protective gas pipe 12 is connected with the inside of the argon gas cylinder 13. The argon gas cylinder 13 is fixedly installed in the detection box 1. When the arc detection is performed , the movable cylinder 11 slides down, and the head of the movable detection strip 15 is in contact with the head of the fixed detection strip 3. At this time, the rotating screw 5 is rotated to lift the movable detection strip 15, and the arc can be generated by repeated operations. In the middle, the gas valve of the argon gas cylinder 13 can be manually opened to fill the movable cylinder 11 and the fixed cylinder 2 with argon gas, which plays a protective role.

The movable cylinder 11 and the fixed cylinder 2 are both arc-proof transparent structures, and the axes of the movable cylinder 11 and the fixed cylinder 2 are coincident, and a sealing ring is fixedly installed at the mouth of the fixed cylinder 2. When the movable cylinder 11 descends, it drives the protective cover 14 to descend together. The protective cover 14 is contacted and inserted into the fixed cylinder 2, the movable cylinder 11 can continue to move downward in a small range, and at this time, the interior of the movable cylinder 11 and the fixed cylinder 2 are isolated from the outside, and the protection effect is good.

When working specifically, in the high-safety arc characteristic detection and display device in the present application, when the activity detection strip 15 is installed, the protective cover 14 is slid upward, the mouth of the V-shaped spring clip 16 is opened, and the activity detection strip 15 Put it into the V-shaped spring clip 16, release the protective cover 14, under the elastic force of the spring 22, the protective cover 14 slides down, the mouth of the V-shaped spring clip 16 is closed, and the activity detection strip 15 is clamped. When the detection box 1 is in a closed state, the rotating screw 5 can drive the ball sleeve 6 to slide on the rotating screw 5 when it rotates, and the ball sleeve 6 can drive the support ring 7 to move up and down together when sliding on the rotating screw 5 Move, the back of the support ring 7 is fixedly connected with the guide slider 8, the guide slider 8 is slidably installed on the guide rail 9, the guide slider 8 mainly plays a guiding role, preventing the support ring 7 from rotating with the ball sleeve 6 , When the arc detection is performed, the movable cylinder 11 slides down, and the head of the movable detection strip 15 is in contact with the head of the fixed detection strip 3. At this time, the rotating screw 5 is rotated to lift the movable detection strip 15, and the repeated operation is An arc can be generated. During this process, the gas valve of the argon gas cylinder 13 can be manually opened, and the movable cylinder 11 and the fixed cylinder 2 are filled with argon gas to protect the movable cylinder 11. When the movable cylinder 11 descends, the protective cover 14 is driven together. When the protective cover 14 is in contact with the fixed cylinder 2 when descending, the movable cylinder 11 can continue to move in a small range, and at this time, the movable cylinder 11 and the fixed cylinder 2 are isolated from the outside, and the protection effect is good.

As used in the specification and claims, certain terms are used to refer to particular components. It should be understood by those skilled in the art that hardware manufacturers may refer to the same component by different nouns. The description and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as a criterion for distinguishing. As mentioned in the entire specification and claims, "comprising" is an open-ended term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect. Furthermore, the term "coupled" herein includes any direct and indirect means of electrical coupling. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be directly electrically coupled to the second device, or indirectly electrically coupled through other devices or coupling means connected to the second device. Subsequent descriptions in the specification are preferred embodiments for implementing the present application. However, the descriptions are for the purpose of illustrating the general principles of the present application and are not intended to limit the scope of the present application. The scope of protection of this application should be determined by the appended claims.

It should also be noted that the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a commodity or system comprising a list of elements includes not only those elements, but also includes not explicitly listed other elements, or elements inherent to the commodity or system. Without further limitation, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the article or system that includes the element.

The foregoing description shows and describes several preferred embodiments of the present invention, but as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as an exclusion of other embodiments, but may be used in various and other combinations, modifications and environments, and can be modified within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant art. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all fall within the protection scope of the appended claims of the present invention.

Claims (8)

1. An arc characteristic detection device with high safety, comprising a detection box (1), a detection box door is installed on the detection box (1), and characterized in that: a bottom plate inside the detection box (1) is fixed on the bottom plate. A fixed cylinder (2) is installed, a fixed detection strip (3) is detachably installed in the fixed cylinder (2), and a swivel (4) is rotatably installed on the top of the detection box (1). (4) It is integrally formed with the position near the upper end of the rotating screw (5), and a ball sleeve (6) is rotatably installed on the rotating screw (5), and the ball sleeve (6) is rotatably clamped on the support ring. In (7), the back of the support ring (7) is fixedly connected with the guide slider (8), the guide slider (8) is slidably installed on the guide rail (9), and the guide rail (9) ) is fixedly connected with the detection box (1), and the lower end of the surface of the guide rail (9) is fixedly provided with a support bearing (10), and the lower end of the rotating screw (5) is installed in the support bearing (10). The front surface of the support ring (7) is fixedly connected with the movable cylinder (11), the side surface of the movable cylinder (11) is fixedly connected with one end of the protective gas pipe (12), and the other end of the protective gas pipe (12) is connected with the argon gas cylinder. The interior of (13) is connected through, the argon cylinder (13) is fixedly installed in the detection box (1), a protective cover (14) is slidably installed under the inside of the movable cylinder (11), and the movable cylinder (11) ) is detachably installed with a movable detection strip (15), a V-shaped spring clip (16) is fixedly installed in the movable cylinder (11), and both sides of the opening of the V-shaped spring clip (16) are connected to the protective cover (14). ) is in close contact with the inner edge of the port at one end away from the movable cylinder (11), and the movable detection strip (15) is clamped in the V-shaped spring clip (16). 2 . The high-safety arc characteristic detection device according to claim 1 , wherein the lower part of the front of the detection box ( 1 ) is an opening structure, and two sets of slides are fixedly installed on both sides of the opening structure. 3 . Rails (17), the detection box door is slidably installed in two sets of slide rails (17). 3 . The arc characteristic detection device with high safety according to claim 1 , wherein an observation port ( 18 ) is opened on the detection box door, and an observation port ( 18 ) is fixedly installed in the observation port ( 18 ). 4 . A convex mirror (19), the observation convex mirror (19) corresponds to the position of the fixed cylinder (2). 4. A high-safety arc characteristic detection device according to claim 1, characterized in that a support cylinder (20) is fixedly installed through the surface of the detection box (1), and the swivel (4) It is rotatably installed in the support cylinder (20), and the lower end of the rotating screw rod (5) penetrates the support cylinder (20). 5 . The arc characteristic detection device with high safety according to claim 1 , wherein the diameter of the protective cover ( 14 ) is smaller than the inner diameter of the fixed cylinder ( 2 ), and the protective cover ( 14 ) has a A blocking ring (21) is integrally formed at the bottom, and a spring (22) is sleeved on the protective cover (14), and the spring (22) is clamped between the blocking ring (21) and the movable cylinder (11). 6 . The arc characteristic detection device with high safety according to claim 1 , wherein the movable cylinder ( 11 ) and the fixed cylinder ( 2 ) are both arc-proof transparent structures, and the movable cylinder ( 11 ) Coinciding with the axis of the fixing cylinder (2), a sealing ring is fixedly installed at the mouth of the fixing cylinder (2). 7 . The arc characteristic detection device with high safety according to claim 1 , wherein a turntable (23) is fixedly installed on the upper end of the rotating screw (5), and the turntable (23) is positive. 8 . It has a polygonal structure, and the surface of the turntable (23) is a non-slip rubber structure. 8 . The arc characteristic detection device with high safety according to claim 1 , wherein an electrical connection clip ( 24 ) is fixed in the fixing cylinder ( 2 ), and the fixing detection strip ( 3 ) is fixed in the fixing cylinder ( 2 ). ) is detachably connected to the electrical connection clip (24).

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