Insulation protection device for electric power facility test

Abstract

The utility model discloses an insulation protection device used for an electric power facility test. The insulation protection device comprises a detection equipment installation head and a protection mechanism. The lower end of the detection equipment mounting head is fixedly connected with a falling-off cylinder, the outer arc surface of the falling-off cylinder is slidably connected with a connecting cylinder, and the interior of the connecting cylinder is slidably connected with a fixed cylinder; the protection mechanism comprises a rotating rod, a first lead screw, a second lead screw, a first threaded cylinder and a second threaded cylinder, the rotating rod is rotationally connected to the inner arc surface of the fixed cylinder, the first lead screw is fixedly connected to the upper end of the rotating rod, the second lead screw is fixedly connected to the upper end of the first lead screw, and the first threaded cylinder is in threaded connection with the outer arc surface of the first lead screw; the insulation protection device for the electric power facility test has the advantages that the insulation protection device for the electric power facility test can be used for preventing operators from being injured by high-voltage current in follow-up operation procedures, and accordingly the insulation protection device is high in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to power facility test technical field, concretely is a kind of insulating protective device for power facility test. BACKGROUND

[0002] In the process of power facility test, it is crucial to ensure the safety of test personnel and the normal operation of test equipment. As a key device to ensure safety, the insulating protective device can effectively prevent electric shock accidents and reduce the interference of external factors on test results.

[0003] In the prior art, the patent with authorized publication number CN220121686U discloses an insulating operating rod, which includes an insulating rod, a connecting structure is arranged at both ends of the insulating rod, the connecting structure includes a male head structure and a female head structure, the male head structure includes a first handle, a plug rod is fixed to the right part of the first handle, the first handle and the plug rod are respectively inserted into the outside and the inside of the insulating rod, and are both fixed to the right end of the insulating rod, the right part of the first handle is provided with a thread, the right part of the plug rod is provided with a marble structure, the female head structure includes a second handle, the second handle is fixed to the left end of the insulating rod, the left part of the second handle is provided with an internal thread and matches the thread on the first handle, and a clamping groove is arranged between the right part of the second handle and the insulating rod.

[0004] The above-mentioned insulating operating rod has some problems in actual use, for example, when the surface voltage of the rod is detected to be abnormal, the operator cannot quickly cut off the contact with the rod body, which can easily cause accidents. Therefore, we propose an insulating protective device for power facility test. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an insulating protective device for power facility test, which has high safety and can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an insulating protective device for power facility test, which includes a detection equipment mounting head and a protection mechanism.

[0007] The detection equipment mounting head is fixedly connected with a falling cylinder at the lower end, the outer arc surface of the falling cylinder is slidingly connected with a connecting cylinder, and the inside of the connecting cylinder is slidingly connected with a fixed cylinder.

[0008] The protection mechanism comprises a rotating rod, a first screw rod, a second screw rod, a first threaded cylinder and a second threaded cylinder, the rotating rod is rotationally connected to the inner arc surface of the fixed cylinder, the upper end of the rotating rod is fixedly connected with the first screw rod, the upper end of the first screw rod is fixedly connected with the second screw rod, the outer arc surface of the first screw rod is threadedly connected with the first threaded cylinder, the outer threaded surface of the second screw rod is threadedly connected with the second threaded cylinder, the outer arc surface of the first threaded cylinder is fixedly connected with the middle part of the inner arc surface of the connecting cylinder, and the outer arc surface of the second threaded cylinder is fixedly connected with the lower side of the inner arc surface of the falling-off cylinder, so that the operator is prevented from being hurt by high-voltage current in the subsequent operation process, and the safety is higher.

[0009] Further, the device is externally provided with a controller, the input end of the controller is electrically connected with an external power supply, and the controller controls the normal operation of the electrical appliance.

[0010] Further, the protection mechanism further comprises limiting strips, first limiting grooves and second limiting grooves, the limiting strips are uniformly fixedly connected to the inner arc surface of the connecting cylinder, the inner arc surface of the falling-off cylinder is provided with uniformly distributed first limiting grooves, and the outer arc surface of the fixed cylinder is provided with uniformly distributed second limiting grooves; the inner walls of the first limiting grooves and the second limiting grooves are respectively in sliding connection with the outer surfaces of the limiting strips corresponding in the longitudinal position, so that the limiting effect is provided for the vertical movement of the connecting cylinder and the fixed cylinder.

[0011] Further, the lower end of the fixed cylinder is fixedly connected with a motor, the output shaft of the motor is fixedly connected with the lower end of the rotating rod, and the input end of the motor is electrically connected with the output end of the controller, so that the power is provided for the movement of the connecting cylinder and the fixed cylinder.

[0012] Further, the inner arc surface of the connecting cylinder is provided with a current detector on the rear side, the detection contact of the current detector is in sliding connection with the rear side of the outer arc surface of the falling-off cylinder, the current detector is bidirectionally electrically connected with the controller, and whether the current is abnormal is detected.

[0013] Further, the limiting head is fixedly connected between the first screw rod and the second screw rod, so that the positions of the first threaded cylinder and the second threaded cylinder are limited.

[0014] Further, the lead of the first screw rod is smaller than the lead of the second screw rod, so that the moving speed of the first threaded cylinder and the moving speed of the second threaded cylinder are changed.

[0015] Compared with the prior art, the insulating protection device for power facility test has the following advantages:

[0016] The protection device drives the falling-off cylinder and the connecting cylinder to stretch out and retract by adopting two groups of screw rods with different leads, when the current is abnormal during the detection of the power equipment, the falling-off cylinder is driven to separate from the connecting cylinder, the operator is prevented from being hurt by high-voltage current in the subsequent operation process, and the safety is higher during the power facility test. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure schematic view of the utility model.

[0018] Fig. 2 It is a structure schematic view of the utility model protection mechanism.

[0019] In the figure: 1 detection equipment mounting head, 2 falls off the cylinder, 3 connects the cylinder, 4 fixed cylinder, 5 protection mechanism, 51 limit strip, 52 first limit slot, 53 second limit slot, 54 rotating lever, 55 first screw rod, 56 second screw rod, 57 first threaded cylinder, 58 second threaded cylinder, 6 motor, 7 current detector, 8 controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figs. 1-2 The embodiment provides a kind of technical scheme: a kind of insulating protection device for electric power facility test, including detection equipment mounting head 1 and protection mechanism 5;

[0022] Detection equipment mounting head 1: its lower end is fixedly connected with falling off the cylinder 2, the outer arc surface of falling off the cylinder 2 is slidably connected with connecting cylinder 3, the inside of connecting cylinder 3 is slidably connected with fixed cylinder 4, the outside of device is equipped with controller 8, the input end of controller 8 is electrically connected with external power supply, the inner arc surface of connecting cylinder 3 is equipped with current detector 7 on rear side, the detection contact of current detector 7 is slidably connected with the outer arc surface rear side of falling off the cylinder 2, current detector 7 is bidirectionally electrically connected with controller 8;

[0023] The protection mechanism 5 comprises a rotating rod 54, a first screw rod 55, a second screw rod 56, a first threaded cylinder 57 and a second threaded cylinder 58. The rotating rod 54 is rotationally connected to the inner arc surface of the fixed cylinder 4. The upper end of the rotating rod 54 is fixedly connected with the first screw rod 55. The upper end of the first screw rod 55 is fixedly connected with the second screw rod 56. The outer arc surface of the first screw rod 55 is threadedly connected with the first threaded cylinder 57. The outer threaded surface of the second screw rod 56 is threadedly connected with the second threaded cylinder 58. The outer arc surface of the first threaded cylinder 57 is fixedly connected with the middle part of the inner arc surface of the connecting cylinder 3. The outer arc surface of the second threaded cylinder 58 is fixedly connected with the lower side of the inner arc surface of the falling cylinder 2. The protection mechanism 5 further comprises limiting strips 51, first limiting grooves 52 and second limiting grooves 53. The limiting strips 51 are uniformly fixedly connected with the inner arc surface of the connecting cylinder 3. The inner arc surface of the falling cylinder 2 is provided with uniformly distributed first limiting grooves 52. The outer arc surface of the fixed cylinder 4 is provided with uniformly distributed second limiting grooves 53. The inner walls of the first limiting grooves 52 and the second limiting grooves 53 are respectively slidingly connected with the outer surfaces of the limiting strips 51 corresponding in longitudinal position. The lower end of the fixed cylinder 4 is fixedly connected with a motor 6. The output shaft of the motor 6 is fixedly connected with the lower end of the rotating rod 54. The input end of the motor 6 is electrically connected with the output end of a controller 8. A limiting head is fixedly connected between the first screw rod 55 and the second screw rod 56. The lead of the first screw rod 55 is smaller than the lead of the second screw rod 56.

[0024] The working principle of the insulating protection device for power facility test is as follows: when the protection device is used, the external detection instrument can be installed to the upper end of the detection equipment mounting head 1, wherein the external detection instrument can be a disconnecting clamp or a voltage testing instrument, at this time, the external controller 8 can be adjusted and controlled, the current detector 7 is operated, at the same time, the controller 8 can be adjusted and controlled, the motor 6 is operated, the output shaft of the motor 6 rotates a specified number of turns, and then drives the first lead screw 55 and the second lead screw 56, because the lead of the first lead screw 55 is smaller than the lead of the second lead screw 56, the first threaded cylinder 57 moves to the middle part of the first lead screw 55, at the same time, the second threaded cylinder 58 moves upward to the middle upper side of the second lead screw 56, at this time, the adapter cylinder 3 moves upward to a specified position, and the cylinder body of the fixed cylinder 4 is exposed, at this time, the operator can hold the exposed cylinder body of the fixed cylinder 4, at this time, the power facility test operation can be carried out, specifically, the insulating protection device is manually waved, the detection instrument on the detection equipment mounting head 1 is contacted with the electrical equipment, during this period, if the current detector 7 detects that the current voltage at the detection equipment mounting head 1 is abnormal, the current detector 7 returns the abnormal information to the controller 8 in real time, the controller 8 rapidly adjusts and controls the motor 6, the output shaft of the motor 6 rapidly rotates, and then drives the first lead screw 55 and the second lead screw 56 to rapidly rotate, and because the lead of the first lead screw 55 is smaller than the lead of the second lead screw 56, when the first threaded cylinder 57 moves to the upper side of the first lead screw 55, the second threaded cylinder 58 is separated from the meshing relationship with the second lead screw 56, and the adapter cylinder 3 loses the support for the falling cylinder 2, at this time, the adapter cylinder 3 is separated from the falling cylinder 2, so that the operator is prevented from being hurt by voltage in subsequent operation, and the protection operation is realized.

[0025] It is worth noting that the controller 8 core chip selected in the above embodiment is a PLC single-chip microcomputer, and the specific model is S7-200, and the motor 6 and the current detector 7 can be freely configured according to actual application scenarios, the motor 6 is recommended to be selected as a SGMGV-03A3A61 type servo motor, and the current detector 7 is recommended to be selected as a DECHTH1300 current detection probe, and the controller 8 controls the motor 6 and the current detector 7 to work, which all adopt the method commonly used in the prior art.

[0026] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation obtained by using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. An insulating shield for use in electrical utility testing, characterized by: The device comprises a detection equipment mounting head (1) and a protection mechanism (5); The detection equipment mounting head (1) is fixedly connected with a falling cylinder (2) at the lower end, the outer arc surface of the falling cylinder (2) is slidably connected with a connecting cylinder (3), and the inner arc surface of the connecting cylinder (3) is slidably connected with a fixed cylinder (4); The protection mechanism (5) comprises a rotating rod (54), a first lead screw (55), a second lead screw (56), a first threaded cylinder (57) and a second threaded cylinder (58), the rotating rod (54) is rotationally connected to the inner arc surface of the fixed cylinder (4), the upper end of the rotating rod (54) is fixedly connected with the first lead screw (55), the upper end of the first lead screw (55) is fixedly connected with the second lead screw (56), the outer arc surface of the first lead screw (55) is threadedly connected with the first threaded cylinder (57), the outer threaded surface of the second lead screw (56) is threadedly connected with the second threaded cylinder (58), the outer arc surface of the first threaded cylinder (57) is fixedly connected with the inner arc surface of the connecting cylinder (3), and the outer arc surface of the second threaded cylinder (58) is fixedly connected with the inner arc surface of the falling cylinder (2).

2. An insulating shield for use in electrical utility testing according to claim 1, wherein: The device is externally provided with a controller (8), and the input end of the controller (8) is electrically connected with an external power supply.

3. An insulating shield for use in electrical utility testing according to claim 2, wherein: The protection mechanism (5) further comprises limiting strips (51), first limiting grooves (52) and second limiting grooves (53), the limiting strips (51) are uniformly fixedly connected to the inner arc surface of the connecting cylinder (3), the inner arc surface of the falling cylinder (2) is provided with uniformly distributed first limiting grooves (52), and the outer arc surface of the fixed cylinder (4) is provided with uniformly distributed second limiting grooves (53); the inner walls of the first limiting grooves (52) and the second limiting grooves (53) are slidably connected with the outer surfaces of the limiting strips (51) corresponding in the longitudinal position, respectively.

4. An insulating shield for use in electrical utility testing according to claim 1, wherein: The lower end of the fixed cylinder (4) is fixedly connected with a motor (6), the output shaft of the motor (6) is fixedly connected with the lower end of the rotating rod (54), and the input end of the motor (6) is electrically connected with the output end of the controller (8).

5. An insulating shield for use in electrical utility testing according to claim 2, wherein: The inner arc surface of the connecting cylinder (3) is provided with a current detector (7) on the rear side, the detection contact of the current detector (7) is slidably connected with the outer arc surface of the falling cylinder (2), and the current detector (7) is bidirectionally electrically connected with the controller (8).

6. An insulating shield for use in electrical utility testing according to claim 1, wherein: A limiting head is fixedly connected between the first lead screw (55) and the second lead screw (56).

7. An insulating shield for use in electrical utility testing according to claim 1, wherein: The lead of the first lead screw (55) is smaller than the lead of the second lead screw (56).

Images