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CN-121978580-A - End screen grounding state detection device for high-voltage sleeve

CN121978580ACN 121978580 ACN121978580 ACN 121978580ACN-121978580-A

Abstract

The invention discloses a device for detecting the grounding state of a tail screen of a high-voltage sleeve, which relates to the technical field of detection of the tail screen of the high-voltage sleeve and comprises a bottom plate, a tail screen placing mechanism, a circuit breaking detection mechanism and a grounding detection mechanism. According to the invention, the copper sleeve is pushed by the push ring, and then the conductive clamping plate is driven to rotate by the conductive plate, so that the conductive clamping plate can stably clamp the lead column, the detection instrument can detect the state of the end screen after the copper sleeve is disconnected with the grounding base, a detection person does not need to manually push the copper sleeve and then insert the pin, and the detection efficiency of the grounding state of the end screen is improved.

Inventors

  • WANG XIAOHUA

Assignees

  • 搏世因（北京）高压电气有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (8)

  1. 1. The utility model provides a last screen ground connection state detection device for high-voltage bushing, includes bottom plate (1), be equipped with detecting instrument (2) in the middle of the top front side of bottom plate (1), its characterized in that still includes last screen placement machine constructs (3), circuit break detection mechanism (4) and ground connection detection mechanism (5): The end screen placing mechanism (3), the end screen placing mechanism (3) comprises an end screen placing groove (303), the end screen placing groove (303) is arranged above the middle of the bottom plate (1), and the end screen of the high-voltage sleeve is placed through the end screen placing groove (303); the circuit breaking detection mechanism (4), the circuit breaking detection mechanism (4) comprises a push ring (408), the push ring (408) is arranged at the right end above the bottom plate (1), and the copper sleeve in the end screen is pushed by the push ring (408); The grounding detection mechanism (5), the grounding detection mechanism (5) comprises a conducting ring (501), the conducting ring (501) is arranged at one end of the end screen placing groove (303) close to the push ring (408), and is connected with the bottom end of the copper sleeve in the end screen through the conducting ring (501).
  2. 2. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 1, wherein the end screen placing mechanism (3) comprises a first supporting seat (301), a connecting frame (302) and a wire holder (304), the first supporting seat (301) is fixedly installed at the left end of the bottom plate (1), the connecting frame (302) is fixedly installed at the top end of the first supporting seat (301), the end screen placing groove (303) is fixedly installed on the side wall, close to the middle of the bottom plate (1), of the connecting frame (302), the wire holder (304) is fixedly installed in the middle of one side, close to the connecting frame (302), of the end screen placing groove (303), and the wire holder (304) is electrically connected with the detecting instrument (2) through a wire.
  3. 3. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 2, wherein the circuit breaking detection mechanism (4) comprises a second supporting seat (401), a movable groove (402) and a movable seat (403), the second supporting seat (401) is fixedly arranged at the right end of the bottom plate (1), the movable groove (402) is formed in the middle of the second supporting seat (401), and the movable seat (403) is movably arranged in the movable groove (402).
  4. 4. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 3, wherein the circuit breaking detection mechanism (4) comprises a push plate (404), an electric push rod (405) and a supporting frame (406), the push plate (404) is fixedly arranged on one side, close to the end screen placing groove (303), of the bottom end of the translation seat (403), the electric push rod (405) is fixedly arranged on the right end side wall of the second supporting seat (401), an output shaft of the electric push rod (405) is fixedly connected with the push plate (404), and the supporting frame (406) is fixedly arranged on the top end of the translation seat (403).
  5. 5. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 4, wherein the circuit breaking detection mechanism (4) comprises a barrel frame (407), a right-angle frame (409) and conductive clamping plates (410), the barrel frame (407) is fixedly arranged at the top end of one side of the support frame (406) close to the end screen placing groove (303), the push ring (408) is fixedly arranged at one end of the barrel frame (407) far away from the support frame (406), the right-angle frames (409) are divided into two groups, the upper side and the lower side of one end of the barrel frame (407) close to the support frame (406) are respectively fixedly arranged, and the conductive clamping plates (410) are divided into two groups and are respectively movably arranged at one end of the two groups of right-angle frames (409) close to the push ring (408).
  6. 6. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 5, wherein the circuit breaking detection mechanism (4) comprises a conducting plate (411), a hollow rod (412) and a first spring (413), the conducting plate (411) is movably arranged inside the barrel frame (407), the hollow rod (412) is inserted and installed in the middle of one end, close to the supporting frame (406), of the barrel frame (407), one end, far away from the supporting frame (406), of the hollow rod (412) is fixedly connected with the middle of the conducting plate (411), the conducting plate (411) is electrically connected with the detection instrument (2) through a wire, the wire penetrates through the hollow rod (412), and the first spring (413) is movably sleeved on the hollow rod (412) and is located between the barrel frame (407) and the conducting plate (411).
  7. 7. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 6, wherein the grounding detection mechanism (5) comprises a binding post (502), lifting rods (503) and a second spring (504), the binding post (502) is movably installed at one end, close to the push ring (408), of the end screen placing groove (303), the top end is fixedly installed in the middle of the bottom end of the conducting ring (501), the binding post (502) is electrically connected with the detection instrument (2) through a wire, the lifting rods (503) are fixedly installed at two ends, close to the push ring (408), of the end screen placing groove (303) respectively, are located at two sides of the binding post (502) respectively, the top ends are fixedly connected with the conducting ring (501), the two lifting rods (503) are inserted into the top ends of the second supporting seat (401), and the two second springs (504) are sleeved on the two lifting rods (503) respectively and located between the end screen placing groove (303) and the second supporting seat (401).
  8. 8. The device for detecting the grounding state of the end screen of the high-voltage bushing according to claim 7, wherein the grounding detection mechanism (5) comprises a U-shaped rod (505) and a lower pressing plate (506), two ends of the U-shaped rod (505) are fixedly arranged at the bottom ends of the two lifting rods (503), the lower pressing plate (506) is fixedly arranged at the bottom end of the translation seat (403), and one end far away from the translation seat (403) is located between the U-shaped rod (505) and the second supporting seat (401).

Description

End screen grounding state detection device for high-voltage sleeve Technical Field The invention relates to the technical field of high-voltage sleeve end screen detection, in particular to an end screen grounding state detection device for a high-voltage sleeve. Background The end screen of the high-voltage bushing refers to the tail end of a capacitor between a conductive rod in the bushing and the ground, is a small bushing for grounding and is usually positioned at a flange plate connected with an oil tank, the end screen is required to be grounded in the operation process so as to ensure the electrical insulation performance and safe and stable operation of the bushing, the end screen serves as the last screen and plays a vital role in the operation process, and the end screen can effectively protect a capacitor core through equipotential connection with the ground, so that an electric field on the surface of an external insulating porcelain bushing is uniformly distributed under the equalizing effect of an internal capacitor core, the electrical insulation performance of the bushing is improved, and therefore, after the end screen of the high-voltage bushing is required to be produced, the end screen is subjected to grounding state detection; in the detection of the ground state of the end screen of the high-voltage sleeve, the built-in spring pushes the outer copper sleeve to be grounded with the grounding base when the end screen is grounded normally, the copper sleeve is pushed in and clamped by the pin when the insulation is detected, so that the copper sleeve is disconnected from the ground, the copper sleeve is required to be confirmed to pop out and reset when the grounding is recovered after the measurement, and the universal meter is used for measuring and confirming that the grounding is good, so that a detector firstly pushes the copper sleeve into the insulation detection in the ground state of the end screen and then inserts the pin, and finally wiring is carried out. Disclosure of Invention The invention aims to provide a device for detecting the grounding state of a tail screen of a high-voltage sleeve, which is used for solving the problems in the background art. The invention provides a device for detecting the grounding state of a tail screen of a high-voltage sleeve, which comprises a bottom plate, wherein a detecting instrument is arranged in the middle of the front side of the top end of the bottom plate, and the device also comprises a tail screen placing mechanism, a circuit breaking detecting mechanism and a grounding detecting mechanism; The end screen placing mechanism comprises an end screen placing groove, the end screen placing groove is arranged above the middle of the bottom plate, and the end screen of the high-voltage sleeve is placed through the end screen placing groove; The circuit breaking detection mechanism comprises a push ring, wherein the push ring is arranged at the right end above the bottom plate, and the copper sleeve in the end screen is pushed by the push ring; The grounding detection mechanism comprises a conducting ring, wherein the conducting ring is arranged at one end of the end screen placing groove, which is close to the push ring, and is connected with the bottom end of the copper sleeve in the end screen through the conducting ring. Preferably, the end screen placing mechanism comprises a first supporting seat, a connecting frame and a wire holder, wherein the first supporting seat is fixedly arranged at the left end of the bottom plate, the connecting frame is fixedly arranged at the top end of the first supporting seat, the end screen placing groove is fixedly arranged on the side wall of the connecting frame, which is close to the middle of the bottom plate, the wire holder is fixedly arranged in the middle of one side of the end screen placing groove, which is close to the connecting frame, and the wire holder is electrically connected with the detecting instrument through a wire. Preferably, the circuit breaking detection mechanism comprises a second supporting seat, a movable groove and a translation seat, wherein the second supporting seat is fixedly arranged at the right end of the bottom plate, the movable groove is formed in the middle of the second supporting seat, and the translation seat is movably arranged in the movable groove. Preferably, the circuit breaking detection mechanism comprises a push plate, an electric push rod and a support frame, wherein the push plate is fixedly arranged at one side, close to a last screen placing groove, of the bottom end of the translation seat, the electric push rod is fixedly arranged on the right end side wall of the second support seat, an output shaft of the electric push rod is fixedly connected with the push plate, and the support frame is fixedly arranged at the top end of the translation seat. Preferably, the circuit breaking detection mechanism comprises a barrel frame, a right-angle f