An integrated shaking test auxiliary device for insulation blanket interlayer and surface insulation resistance

Abstract

The present invention discloses an integrated shaking test auxiliary device for insulation resistance between layers and along the surface of an insulation blanket, which relates to the technical field of shaking test of insulation blankets, and comprises: a fixed arm fixedly connected to a frame and a movable arm rotatably connected to a frame, two first conductive rods are both rotatably connected to the fixed arm; two second conductive rods aligned in parallel front and back are both rotatably connected to the movable arm, and during the rotation of the movable arm, there is a shaking test station for staggering the two second conductive rods above the two first conductive rods, two lifting and rotating rollers aligned in parallel up and down, which are both rotatably connected to the frame, and a blanket discharging mechanism is used to sequentially take and deliver a single insulation blanket from the stacked insulation blankets to between the two lifting and rotating rollers. The present invention can simultaneously test the resistance value of the insulation blanket along the surface and between layers, and ensure the safety of the use of the insulation blanket in multiple directions. The blanket discharging mechanism can automatically take and deliver a single insulation blanket from the stacked insulation blankets to between the two lifting and rotating rollers in sequence, thereby improving the efficiency of batch detection of insulation blankets.

Description

Technical Field

[0001] The invention relates to the technical field of shaking test of insulation blankets, in particular to an integrated shaking test auxiliary device for interlayer and surface insulation resistance of insulation blankets. Background Art

[0002] When working with live wires using the fully insulated working method, the insulation resistance test of the insulation shielding device and the insulation blanket should be carried out. The insulation resistance should be measured by shaking, including the interlayer and surface insulation resistance.

[0003] The currently used insulation blanket interlayer insulation resistance test device uses two seamless steel pipes to clamp the front and back sides of the insulation blanket respectively. The insulation blanket passes through the middle, and one of the two steel pipes is connected to the positive pole of the insulation resistance meter (megohmmeter) and the other is connected to the negative pole. The insulation blanket is tested by megohmmeter when it passes through. When there is a hole in any part of the middle of the insulation blanket, the seamless steel pipes on the front and back sides penetrate the air medium in the hole, resulting in conduction. At the same time, the megohmmeter can read its insulation resistance value, such as patent CN201720128022.5.

[0004] In addition to testing the insulation between layers, the insulation blanket also needs to be tested for surface insulation. The surface testing method is generally to use a copper sheet with a width of two centimeters and a distance between two centimeters to contact the surface of the insulation blanket. At the same time, the two copper sheets are connected to the positive and negative poles of the insulation resistance meter. When there are water drops on the surface of the insulation blanket, the two plates are discharged and connected, and the insulation resistance value can be read by the megohmmeter.

[0005] At present, the prior art lacks a device for simultaneously testing the insulation resistance along the surface and between layers, and even if a one-way test is performed, the worker has to feed the insulation blanket into the test device one by one, which results in a relatively low efficiency in batch testing. Summary of the invention

[0006] The object of the present invention is to provide an integrated shaking test auxiliary device for the insulation resistance between layers and along the surface of an insulation blanket, so as to solve the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated shaking test auxiliary device for interlayer and surface insulation resistance of an insulating blanket, comprising: a frame, to which a fixed arm is fixedly connected and a movable arm is rotatably connected; two first conductive rods aligned in parallel, both of which are rotatably connected to the fixed arm; two second conductive rods aligned in parallel front and back, both of which are rotatably connected to the movable arm, and during the rotation of the movable arm, there is a shaking test station in which the two second conductive rods are staggered above the two first conductive rods; two lifting and rotating rollers aligned in parallel up and down, both of which are rotatably connected to the frame; a blanket discharging mechanism, which is used to sequentially take and deliver single insulating blankets from the stacked insulating blankets to between the two lifting and rotating rollers.

[0008] Furthermore, there is a guide assembly between the pulling and rotating roller located below and the first conductive rod, and the guide assembly includes a frame and a plurality of guide rollers aligned in parallel front and back, the frame is fixedly connected to the frame, and each of the guide rollers is rotatably connected to the frame.

[0009] Furthermore, a tension spring is provided between the frame and the movable arm, one end of the tension spring is hooked on the movable arm, and the other end is hooked on the frame and is located directly below the rotating shaft of the movable arm.

[0010] Furthermore, a shaft rod is rotatably connected to the first conductive rod via a bearing, and a power connection component is provided on the first conductive rod. The power connection component includes a conductive ring fixedly sleeved on the shaft rod, and a plurality of conductive spring sheets are fixedly connected to the circumferential side surface of the conductive ring, and each conductive spring sheet is fixedly connected to a conductive arc sheet.

[0011] Furthermore, the shafts of the two first conductive rods are respectively mounted on the fixed arm through rubber washers, and / or the shafts of the two second conductive rods are respectively mounted on the movable arm through rubber washers.

[0012] Furthermore, the blanket discharging mechanism includes: a lifting platform, on which insulating blankets are stacked; a rolling cylinder, which is rotatably connected to a movable part that moves horizontally relative to the frame, and the rolling cylinder rolls on the insulating blanket on the lifting platform; a curling assembly, which includes a reel rotatably connected to the frame and a plurality of parallelly arranged straps wound on the reel, the other end of each strap being fixedly connected to the lifting platform, and the straps curling the stacked insulating blankets onto the rolling cylinder when the reel reels them; an electric clamp, which is arranged on the movable part, and the electric clamp is used to clamp the insulating blanket curled on the innermost side of the rolling cylinder, and the electric clamp, driven by the movable part, transports the clamped insulating blanket to between the two lifting and rotating rollers.

[0013] Furthermore, the lifting platform is vertically slidably connected to a fixing frame fixed relative to the frame, and a driving unit for driving the lifting platform to move up and down is arranged between the fixing frame and the lifting platform.

[0014] Furthermore, the driving unit is a hydraulic cylinder, a pneumatic cylinder, an electric push rod or a scissor lift mechanism.

[0015] Furthermore, a track is fixedly connected to the frame, and the moving part is a pulley that can reciprocate along the track.

[0016] Furthermore, the tail of the electric clamp is rotatably connected to the moving member, and the moving member is provided with a third motor for driving the electric clamp to rotate.

[0017] In the above technical scheme, the present invention provides an integrated shaking test auxiliary device for insulation resistance between layers and along the surface of an insulation blanket. When the insulation blanket passes between two first conductive rods and two second conductive rods, the resistance value of the lower surface of the insulation blanket can be measured through the two first conductive rods, and the resistance value of the upper surface of the insulation blanket can be measured through the two second conductive rods. The resistance value between the insulation blanket layers can be measured through the first conductive rod and the second conductive rod adjacent to it, so that the resistance value along the surface and between layers of the insulation blanket can be tested simultaneously, and the safety of the use of the insulation blanket is guaranteed in all aspects. A blanket discharging mechanism is provided, which can automatically take and deliver a single insulation blanket from the stacked insulation blankets to between the two lifting and rotating rollers in sequence, thereby improving the efficiency of batch detection of insulation blankets. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of an electric clamping claw provided in an embodiment of the present invention clamping an insulating blanket;

[0020] Figure 2 A schematic diagram showing another perspective of the electric clamping claws clamping the insulating blanket provided by an embodiment of the present invention;

[0021] Figure 3 A front view of an electric clamping claw provided by an embodiment of the present invention clamping an insulating blanket;

[0022] Figure 4 A top view of an electric clamp clamping an insulating blanket provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a lifting and rotating roller pulling an insulating blanket provided by an embodiment of the present invention;

[0024] Figure 6 A front view of the lifting and rotating roller provided in an embodiment of the present invention pulling the insulating blanket;

[0025] Figure 7 A top view of the lifting and rotating roller provided in an embodiment of the present invention pulling an insulating blanket;

[0026] Figure 8 A schematic structural diagram of a power connection assembly provided in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Frame; 2. Fixed arm; 3. Movable arm; 4. First conductive rod; 5. Second conductive rod; 6. Lifting roller; 7. Guide roller; 8. Tension spring; 9. Support roller; 10. First motor; 11. Fourth motor; 12. Fixed frame; 13. Lifting platform; 14. Hydraulic cylinder; 15. Track; 16. Moving part; 17. Rolling cylinder; 18. Reel; 19. Binding belt; 20. Second motor; 21. Electric clamp; 22. Third motor; 23. Connecting rod; 24. Rubber gasket; 25. Shaft; 26. Conductive ring; 27. Conductive spring; 28. Conductive arc sheet. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1-Figure 8 An embodiment of the present invention provides an integrated shaking test auxiliary device for interlayer and surface insulation resistance of an insulating blanket, comprising a frame 1, a guide assembly, two parallel first conductive rods 4, two parallel second conductive rods 5 aligned in the front-to-back direction, two upper and lower parallel pulling and rotating rollers 6, and a blanket discharging mechanism, wherein the frame 1 is fixedly connected to a fixed arm 2 and rotatably connected to a movable arm 3, a tension spring 8 is arranged between the frame 1 and the movable arm 3, one end of the tension spring 8 is hooked on the movable arm 3, and the other end is hooked on the frame 1 and is located directly below the rotating shaft of the movable arm 3.

[0031] The two first conductive rods 4 are both rotatably connected to the fixed arm 2, and the two second conductive rods 5 are both rotatably connected to the movable arm 3. During the rotation of the movable arm 3, there is a shaking test position in which the two second conductive rods 5 are arranged alternately above the two first conductive rods 4. The elastic force of the tension spring 8 can keep the movable arm 3 in the shaking test position. The two first conductive rods 4 and the two second conductive rods 5 are respectively connected to the shaking meter through wires. The wiring requirements are that one of the two first conductive rods 4 discharges to the other, one of the two second conductive rods 5 discharges to the other, and one of the first conductive rod 4 and the adjacent second conductive rod 5 discharges to the other.

[0032] The two lifting and rotating rollers 6 are both rotatably connected to the frame 1. The frame 1 is provided with a first motor 10. The first motor 10 is used to drive one of the lifting and rotating rollers 6 to rotate, and is used to pull the insulating blanket. The lifting and rotating rollers 6 are wrapped with non-slip rubber skin, which can prevent the insulating blanket from slipping and protect the insulating blanket from damage when the insulating blanket is lifted and pulled. The front and back directions are based on the direction of the insulating blanket passing through the first conductive rod 4 and the second conductive rod 5, and the forward direction is the front. The frame 1 is also equipped with a fourth motor 11, which is used to drive the first conductive rod 4 or the second conductive rod 5 located in the front to rotate, thereby further pulling the insulating blanket located between the first conductive rod 4 and the second conductive rod 5.

[0033] The blanket discharging mechanism is used to sequentially take and deliver a single insulating blanket from the stacked insulating blankets to between the two lifting and rotating rollers 6. The guide assembly is located between the lower lifting and rotating roller 6 and the first conductive rod 4. The guide assembly includes a frame and a plurality of guide rollers 7 aligned parallel to each other. The frame is fixedly connected to the frame 1. Each guide roller 7 is rotatably connected to the frame. The guide assembly is used to guide the insulating blanket pulled out from the two lifting and rotating rollers 6 to between the first conductive rod 4 and the second conductive rod 5 for shaking test. The fixed arm 2 is rotatably connected to a support roller 9, which is located in front of each first conductive rod 4. The fixed arm 2 and the guide assembly support the test assembly composed of the first conductive rod 4 and the second conductive rod 5 from the front and back to prevent the weight of the insulating blanket from being entirely pressed on the first conductive rod 4.

[0034] There are two ways to solve the problem of connecting the first conductive rod 4 to the megohmmeter. The first way is that the shaft 25 of the first conductive rod 4 is fixedly connected to the fixed arm 2, and the first conductive rod 4 is rotatably connected to its shaft 25 through a metal bearing. The wire is connected to the inner ring of the metal bearing to conduct electricity with the first conductive rod 4 through the metal bearing. The advantages are simple structure and convenient wiring. However, if lubricating oil is injected into the metal bearing shaft for lubrication, there is a small probability that poor conductive contact will occur, affecting the accuracy of the insulation blanket resistance value test.

[0035] The other is that the shaft 25 of the first conductive rod 4 is fixedly connected to the fixed arm 2, and the first conductive rod 4 is rotatably connected to the shaft 25 through a bearing (either a metal bearing or a non-metal bearing, and lubricating oil can also be injected). The first conductive rod 4 is connected to the wire connected to the megohmmeter through a power connection component provided thereon. For details, refer to Figure 8 The electrical connection assembly includes a conductive ring 26 fixedly sleeved on the shaft 25, the conductive ring 26 is connected to the megohmmeter through a wire, and a plurality of conductive springs 27 are fixedly connected to the circumferential side of the conductive ring 26. A conductive arc piece 28 is fixedly connected to each conductive spring piece 27, and the first conductive rod 4 is electrically connected to the megohmmeter through the conductive arc piece 28, the conductive spring piece 27, the conductive ring 26 and the wire in sequence. The elastic force of each conductive spring piece 27 can make the corresponding conductive arc piece 28 abut against the inner wall of the first conductive rod 4, and the outer diameter of the conductive arc piece 28 is adapted to the inner diameter of the first conductive rod 4, so that the conductive arc piece 28 and the first conductive rod 4 can always maintain good sliding contact, and the contact is excellent, which ensures the accuracy of the insulation blanket resistance value detection.

[0036] The connection between the second conductive rod 5 and the megohmmeter is carried out in the same manner as the connection between the first conductive rod 4 and the megohmmeter.

[0037] As a further optimized technical solution, the shafts 25 of the two first conductive rods 4 are respectively installed on the fixed arm 2 through the rubber washers 24, and / or the shafts 25 of the two second conductive rods 5 are respectively installed on the movable arm 3 through the rubber washers 24. The shafts 25 of the first conductive rods 4 make "soft contact" with the fixed arm 2 through the rubber washers 24, and / or the shafts 25 of the second conductive rods 5 make "soft contact" with the movable arm 3 through the rubber washers 24, so as to ensure that the second conductive rods 5 and the first conductive rods 4 press the insulating blanket therebetween together when the movable arm 3 rotates to the shaking test station, so that the insulating blanket can pass smoothly between the second conductive rods 5 and the first conductive rods 4, and can avoid the gaps between the second conductive rods 5, the first conductive rods 4 and the insulating blanket to cause detection errors.

[0038] In the present invention, when the insulating blanket passes between the two first conductive rods 4 and the two second conductive rods 5, the contact surface length (moving direction) between the two first conductive rods 4, the two second insulating rods and the insulating blanket is not less than 2CM, the resistance value of the lower surface of the insulating blanket can be measured through the two first conductive rods 4, the resistance value of the upper surface of the insulating blanket can be measured through the two second conductive rods 5, and the resistance value between the insulating blanket layers can be measured through the first conductive rods 4 and the second conductive rods 5 adjacent thereto, so that the resistance value along the surface and between the layers of the insulating blanket can be tested simultaneously, thereby ensuring the safety of the use of the insulating blanket in all aspects.

[0039] The blanket discharging mechanism provided by the present invention specifically includes a lifting platform 13, a rolling cylinder 17, a moving part 16, a curling assembly and an electric clamp 21, wherein the lifting platform 13 is vertically slidably connected to a fixed frame 12 fixed relative to a frame 1, and a driving unit for driving the lifting platform 13 to rise and fall is arranged between the fixed frame 12 and the lifting platform 13, and the driving unit is a hydraulic cylinder 14, a cylinder, an electric push rod or a scissors lifting mechanism, and the lifting platform 13 is used for stacking insulating blankets. A track 15 is fixedly connected to the frame 1, and a moving member 16 is arranged on the track 15 to move horizontally along the moving direction when the insulating blanket is detected, that is, the moving member 16 moves horizontally relative to the frame 1. Specifically, the moving member 16 adopts a pulley that can move back and forth along the track 15, and a rolling cylinder 17 is rotatably connected to the moving member 16. The rolling cylinder 17 rolls on the insulating blanket on the lifting platform 13, that is, the rolling cylinder 17 presses on the insulating blanket stacked on the lifting platform 13, and at the same time, as the moving member 16 moves, the rolling cylinder 17 can roll on the stacked insulating blankets.

[0040] The curling assembly includes a reel 18 rotatably connected relative to the frame 1 and a plurality of straps 19 arranged in parallel. A second motor 20 is provided on the frame 1, and the second motor 20 can drive the reel 18 to rotate forward and reverse. One end of each strap 19 is wound around the reel 18, and the other end is fixedly connected to the lifting platform 13. The specific connection position between the end of the strap 19 and the lifting platform 13 should be directly below the central axis of the rolling cylinder 17 (regardless of where the rolling cylinder 17 moves with the moving part 16). When the second motor 20 drives the reel 18 to rotate and rewind the strap 19, the strap 19 curls one end of each stacked insulation blanket onto the rolling cylinder 17.

[0041] The electric clamp 21 is arranged on the movable part 16. Specifically, the number of movable parts 16 is preferably two, which are symmetrically distributed on both sides of the insulating blanket. The movable part 16 includes a pulley body and two fixed parts, one of which is fixedly connected to the pulley body, and the two fixed parts are fixedly connected by a connecting rod 23. The tail of the electric clamp 21 is rotatably connected to the movable part 16. The movable part 16 is provided with a third motor 22 for driving the electric clamp 21 to rotate relative to the movable part 16. The electric clamp 21 is used to clamp the insulating blanket curled on the innermost side of the rolling cylinder 17. The width of the insulating blanket is greater than the axial length of the rolling cylinder 17. Driven by the movable part 16, the electric clamp 21 transports the clamped insulating blanket to between the two pulling and rotating rollers 6.

[0042] The specific working principle of the above-mentioned blanket discharging mechanism is as follows: first, the insulating blankets to be tested are neatly laid and stacked on the lifting platform 13; then, the lifting platform 13 is lifted until the insulating blankets stacked on the lifting platform 13 are squeezed with the rolling cylinder 17; then, the reel 18 reels the binding tape 19 to curl one end of each stacked insulating blanket onto the rolling cylinder 17, and the curled ends of each insulating blanket are staggered in steps in sequence; then, the electric clamp 21 clamps the edge of the curled end of the insulating blanket curled on the innermost side of the rolling cylinder 17 (i.e., the insulating blanket located at the top on the lifting platform 13) (such as Figure 1-Figure 4 ); then the reel 18 releases the wound band 19, and the remaining insulating blankets not clamped by the electric clamp 21 recover to a flat state again due to their own stiffness after losing the restraint of the band 19; then the moving part 16 moves along the track 15 with the electric clamp and the rolling drum 17, and the rolling drum 17 rolls on the stacked insulating blankets, and the uppermost insulating blanket clamped by the electric clamp 21 is sent between the two pulling and rotating rollers 6 (such as Figure 5-Figure 7), at this time, the rolling cylinder 17 just breaks away from the squeezing of each insulating blanket, the electric clamp 21 releases the clamping of the insulating blanket, and is driven by the third motor 22 to rotate to avoid the insulating blanket; then the first motor 10 drives the lifting and rotating roller 6 to rotate to pull the insulating blanket, and the insulating blanket passes through the guide rollers 7 to enter between the first conductive rod 4 and the second conductive rod 5 to continuously measure the resistance values ​​between the layers and along the surface, and is continued to be pulled by the first conductive rod 4 and the second conductive rod 5 until the insulating blanket completely passes through the first conductive rod 4 and the second conductive rod 5, and the detection of the insulating blanket is completed. After that, the moving part 16 returns to the initial position with the electric clamp 21 and the rolling cylinder 17, and the lifting platform 13 rises to a height of the thickness of the insulating blanket, so that the remaining insulating blankets stacked on it rise to the point of squeezing between them and the rolling cylinder 17, and then the above steps can be used to check the next insulating blanket.

[0043] The blanket discharging mechanism provided in the present invention can automatically take and deliver single insulating blankets from the stacked insulating blankets to between the two pulling and rotating rollers 6 in sequence, without the need for staff to deliver the insulating blankets one by one into the two pulling and rotating rollers 6 or between the first conductive rod 4 and the second conductive rod 5, thereby greatly improving the efficiency of batch detection of insulating blankets.

[0044] Regarding the selection of each motor in the present invention, a servo motor with forward and reverse rotation function, self-locking function and programmable control can be used as required.

[0045] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated shaking test auxiliary device for insulation blanket interlayer and surface insulation resistance, characterized in that: include: A frame, to which a fixed arm is fixedly connected and a movable arm is rotatably connected; Two parallel and aligned first conductive rods, both of which are rotatably connected to the fixed arm; Two second conductive rods are aligned in parallel and front and back, and are both rotatably connected to the movable arm. During the rotation of the movable arm, there is a shaking test station for staggering the two second conductive rods above the two first conductive rods; Two lifting and rotating rollers aligned in parallel up and down, both of which are rotatably connected to the frame; The blanket discharging mechanism is used to sequentially pick up and deliver a single insulation blanket from the stacked insulation blankets to between two lifting and rotating rollers. The blanket discharging mechanism includes: A lifting platform on which insulation blankets are stacked; A rolling cylinder is rotatably connected to a moving part that moves horizontally relative to the frame, and the rolling cylinder rolls on the insulating blanket on the lifting platform; The winding assembly includes a reel connected to the frame for rotation and a plurality of parallelly arranged straps wound on the reel, the other end of each strap being fixedly connected to the lifting platform, and the straps curling the stacked insulation blankets onto the rolling cylinder when the reel reels the straps; The electric clamp is arranged on the moving part and is used for clamping the insulating blanket curled on the innermost side of the rolling cylinder. The electric clamp is driven by the moving part to transport the clamped insulating blanket to between the two lifting and rotating rollers.

2. The device for integrated shaking test of insulation resistance between layers and along the surface of an insulation blanket according to claim 1 is characterized in that: A guide assembly is provided between the lifting and rotating roller located below and the first conductive rod. The guide assembly includes a frame and a plurality of guide rollers aligned in parallel front and back. The frame is fixedly connected to the frame, and each guide roller is rotatably connected to the frame.

3. According to the integrated shaking measurement auxiliary device for interlayer and surface insulation resistance of an insulating blanket as described in claim 1, a tension spring is arranged between the frame and the movable arm, one end of the tension spring is hooked on the movable arm, and the other end is hooked on the frame and is located directly below the rotating shaft of the movable arm.

4. According to claim 1, an integrated shaking measurement auxiliary device for the insulation resistance between layers and along the surface of an insulating blanket, a shaft rod is rotatably connected to the first conductive rod through a bearing, and a power connection component is arranged on the first conductive rod, and the power connection component includes a conductive ring fixedly sleeved on the shaft rod, and a plurality of conductive spring sheets are fixedly connected to the circumferential side surface of the conductive ring, and a conductive arc sheet is fixedly connected to each conductive spring sheet.

5. According to the integrated shaking measurement auxiliary device for interlayer and surface insulation resistance of an insulating blanket as described in claim 1, the shafts of the two first conductive rods are respectively installed on the fixed arm through rubber washers, and / or the shafts of the two second conductive rods are respectively installed on the movable arm through rubber washers.

6. The device for integrated shaking test of insulation resistance between layers and along the surface of insulation blanket according to claim 1 is characterized in that: The lifting platform is vertically slidably connected to a fixing frame fixed relative to the frame, and a driving unit for driving the lifting platform to move up and down is arranged between the fixing frame and the lifting platform.

7. The device for integrated shaking test of insulation resistance between layers and along the surface of an insulation blanket according to claim 6 is characterized in that: The driving unit is a hydraulic cylinder, a pneumatic cylinder, an electric push rod or a scissor lift mechanism.

8. The device for integrated shaking test of insulation resistance between layers and along the surface of an insulation blanket according to claim 1 is characterized in that: The frame is fixedly connected with a track, and the moving part is a pulley capable of reciprocating along the track.

9. The device for integrated shaking test of insulation resistance between layers and along the surface of insulation blanket according to claim 1 is characterized in that: The tail of the electric clamp is rotatably connected to the moving part, and the moving part is provided with a third motor for driving the electric clamp to rotate.

Images