A low-voltage line live working lifting type insulation platform

Abstract

The application discloses a lifting type insulating platform for low-voltage line hot-line work, which comprises a bottom plate, an adjusting mechanism is arranged on the top of the bottom plate, and a storage mechanism is arranged above the adjusting mechanism; the adjusting mechanism comprises a hydraulic cylinder arranged at the center of the bottom plate and a supporting plate arranged at the top of the hydraulic cylinder; a plurality of limiting cylinders are arranged on the top of the bottom plate in a rectangular array; supporting rods arranged at the bottom of the supporting plate are movably inserted into the inside of the limiting cylinders; an installation groove is formed in the top of the supporting plate; a servo motor is arranged at the bottom center of the installation groove; an insulating table is arranged at the top of the output end of the servo motor; an annular guide rail is arranged at the bottom edge of the installation groove; and a rotating drum arranged at the bottom of the insulating table is slidably connected to the top of the annular guide rail; the platform is higher in stability during the adjusting and rotating process, the taking and placing of work tools is more convenient, and the opening and closing of the door plate is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of insulation platform technology, and in particular to a lifting insulation platform for live-line work on low-voltage lines. Background Technology

[0002] Low-voltage live-line work is a highly dangerous job that requires multiple protective measures, such as wearing qualified insulated boots, clean and dry gloves, and working on an insulated platform. For ease of use, the insulated platform needs to be modified accordingly.

[0003] For example, a hydraulic lifting insulating platform for live-line work on power distribution lines, application number CN202023219720.7, includes a base plate. Each of the four corners of the base plate is equipped with universal self-locking wheels. A hydraulic rod is fixed to the top of the base plate, and a telescopic frame is symmetrically fixed to the top of the base plate. A flat plate is fixed to the top of the hydraulic rod. This utility model, by setting up a first support column, a top plate, a first motor, a threaded rod, a lifting plate, a fixed column, and a support plate, allows the platform to be positioned stably. When the insulating platform needs to be stopped, the first motor is activated to control the support plate to contact the ground, lifting the entire device and making the insulating platform more stable during operation. By setting up a second support column, a connecting plate, a circular plate, an arc-shaped block, an arc groove, and a second motor, the platform can be rotated when workers need to rotate it.

[0004] However, the existing device has problems such as insufficient stability during the adjustment and rotation process, and inconvenience in picking up and putting down tools. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting insulating platform for live-line work on low-voltage lines, so as to solve the problems mentioned in the background art.

[0006] Technical solution: A lifting insulated platform for live-line work on low-voltage lines, comprising:

[0007] A base plate, the top of which is equipped with an adjustment mechanism, and a storage mechanism is installed above the adjustment mechanism;

[0008] The adjustment mechanism includes a hydraulic cylinder installed at the center of the base plate and a support plate installed on top of the hydraulic cylinder. Multiple limiting cylinders are installed in a rectangular array on the top of the base plate. A support rod installed at the bottom of the support plate is movably inserted into the inner side of the limiting cylinder. An installation groove is opened on the top of the support plate. A servo motor is installed at the center of the bottom of the installation groove. An insulating platform is installed on the top of the output end of the servo motor. An annular guide rail is installed on the bottom edge of the installation groove. A rotating cylinder installed at the bottom of the insulating platform is slidably connected to the top of the annular guide rail.

[0009] The insulating platform has support rods installed at the four corners of its top, and an insulating plate is connected between the lower parts of adjacent support rods. The insulating plate on the rear side is equipped with a locking mechanism, and a top plate is installed between the tops of the four support rods.

[0010] The storage mechanism includes a storage box that is movably inserted into the middle of the top plate and a baffle connected to the top of the storage box. The bottom of the baffle is connected in a rectangular array with four guide rods that are movably inserted into the corresponding sides of the top plate. The side walls of the guide rods are fitted with springs that support the baffle and the top plate. A handle is installed at the center of the bottom of the storage box.

[0011] The storage box has multiple partitions inserted longitudinally in parallel inside its cavity, and the front and rear sides of the storage box are connected to blocking plates by hinges.

[0012] The spring is connected to two support rings at both ends, and the two support rings are respectively supported at the bottom of the baffle and the top of the top plate.

[0013] The top of the guide rod is integrally injection molded with a stud, which is screwed to the corresponding side of the bottom of the baffle.

[0014] The rear insulating plate consists of two door panels, which are connected to the corresponding side of the support rod via hinges. The locking mechanism includes an electric telescopic rod installed on the rear side of one door panel. Two corresponding fixing rings are connected to the rear sides of both door panels. A connecting plate is connected to the output end of the electric telescopic rod. Two insert rods are connected to the side of the connecting plate away from the electric telescopic rod, and the insert rods are inserted into the corresponding two fixing rings.

[0015] The hydraulic cylinder includes a push rod, a cylinder barrel, and a drain cylinder arranged sequentially from top to bottom. The push rod is fitted into the cylinder barrel from top to bottom, and a piston is provided at the lower end of the push rod. The piston is slidably fitted with the inner circumferential surface of the cylinder barrel. The bottom of the cylinder barrel is an open end and communicates with the drain cylinder. A hydraulic oil inlet / outlet hole is provided on the lower side wall of the cylinder barrel. A bottom plug is slidably fitted inside the bottom of the cylinder barrel. The upper part of the bottom plug is fitted inside the cylinder barrel, and the lower part extends into the drain cylinder. An annular support is installed at the bottom of the drain cylinder. The inner diameter of the annular support is larger than the diameter of the bottom plug. The heights of the bottom plug and the annular support are both lower than [the specified height]. The internal height of the drain cylinder; multiple Rupert's Tears are evenly clamped between the bottom plug and the annular support; a controllable squeezing ring is fixedly fitted at the tail of each Rupert's Tears; a wire worn or fixed on the worker and in contact with their skin is electrically connected to a current sensing sensor or a voltage sensing sensor; a controller can select to control the controllable squeezing ring to burst the tail of the Rupert's Tears based on the current or voltage data monitored by the current or voltage sensor, thereby causing the Rupert's Tears to disintegrate instantly; after the Rupert's Tears disintegrate, the bottom plug loses its support and falls into the middle of the annular support, exposing the bottom of the cylinder and communicating with the drain cylinder.

[0016] The bottom outer corner of the bottom plug and the top inner corner of the annular support are respectively provided with concave arc surfaces that can roughly match the surface arc of Rupert's Tear; Rupert's Tear is wrapped and held by the common part of the two opposing concave arc surfaces.

[0017] The controllable compression ring includes two arc-shaped support bodies hinged to each other at one end; multiple piezoelectric ceramic blocks that can expand and contract radially under the action of current are uniformly embedded on the inner side of the arc-shaped support bodies; the other end of the two arc-shaped support bodies can be detachably connected by bolts or buckles; after clamping, the piezoelectric ceramic blocks abut against the tail surface of Rupert's Tear; the controller controls each piezoelectric ceramic block to squeeze together towards the tail of the clamped Rupert's Tear, causing Rupert's Tear to disintegrate instantly.

[0018] The base plate is equipped with a safety airbag device. The triggering of the safety airbag device is simultaneous with the energization and elongation of the piezoelectric ceramic block, providing a buffer for the falling insulated platform.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. In this invention, the rotating drum, in conjunction with the annular guide rail, increases the stability of the rotating insulating platform during the servo motor-driven rotation, ensuring higher stability during the adjustment and rotation process. Pulling down and holding the handle forcefully opens the blocking plate and allows the tools in the storage box to be retrieved. Releasing the handle resets the storage box to avoid interfering with the operation, making tool retrieval and placement convenient. Driving the electric telescopic rod moves the two insertion rods, allowing them to insert into or remove from the fixing ring, thus opening or locking the door panel for easy opening and closing. This platform offers higher stability during the adjustment and rotation process, facilitates tool retrieval and placement, and makes door panel opening and closing convenient.

[0021] 2. This invention utilizes a wire worn or fixed to the worker's body, in contact with their skin, to electrically connect a current-sensing sensor or a voltage-sensing sensor to sense and monitor the current, thereby determining whether the person is experiencing electric shock. The controller, based on the current or voltage signal triggered by the current or voltage sensor, controls a controllable squeezing ring to burst the tail of the "Rupert's Tear." This cleverly utilizes the remarkable physical properties of "Rupert's Tear": the teardrop itself is much harder than ordinary glass, able to withstand 8 tons of pressure without breaking; however, if its slender tail is grasped and slight pressure is applied, the entire glass tear will instantly shatter and disintegrate. After being crushed and disintegrated, the bottom plug loses its support and falls into the middle of the annular support, exposing the bottom of the cylinder and connecting it to the drain cylinder. Under its own weight and the pressure of the piston above, the hydraulic oil in the cylinder is squeezed into the drain cylinder in a very short time, thus completely releasing the hydraulic oil in the drain cylinder. After losing its support, the piston and push rod sink rapidly under their own weight and the pressure of the insulating platform above and the workers, thus physically and quickly eliminating the workers from electric shock contact and reducing the harm caused by electric shock. At the same time, the safety airbag device installed on the base plate also reacts immediately and inflates, providing a cushion for the falling platform and ensuring that the workers are not injured by the fall.

[0022] 3. This invention combines a hydraulic cylinder with the characteristics of Rupert's Tears and the rapid deformation properties of piezoelectric ceramic blocks. This modification retains the stable lifting function of the hydraulic cylinder under normal conditions. Because Rupert's Tears, except for its tail section, has extremely strong compressive strength, it can stably support the weight of the platform and personnel for a long time without affecting the normal operation of the hydraulic cylinder. In the event of an accidental electric shock or other emergency, the weak point at the tail section of Rupert's Tears is easily crushed, instantly causing an imbalance of internal stress and complete disintegration. This allows for rapid drainage of hydraulic oil, instantly transforming the hydraulic cylinder into a descending guide. This structure overcomes the slow action speed of hydraulic cylinders, ensuring that it not only does not hinder the platform's descent in an electric shock crisis but also serves as a crucial structure for achieving a rapid trigger response. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a cross-sectional view between the support plate and the insulating platform of the present invention;

[0025] Figure 3 This is a cross-sectional view of the storage mechanism of the present invention;

[0026] Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle;

[0027] Figure 5 For the present invention Figure 1 Enlarged view of point B in the middle;

[0028] Figure 6 This is a cross-sectional view of the support leg and limiting cylinder of the present invention.

[0029] Figure 7 This is the support leg control panel of the present invention;

[0030] Figure 8 This is a schematic diagram of the hydraulic cylinder of the present invention under normal operating conditions;

[0031] Figure 9 This is a schematic diagram of the hydraulic cylinder used in the instantaneous shattering of the Rupert's Tears according to the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the hydraulic cylinder of the present invention for instantly expelling hydraulic oil;

[0033] Figure 11 This is a schematic diagram of the structure of the Rupert's Tears and the controllable extrusion ring of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the controllable compression ring clamping Rupert's tear tail according to the present invention;

[0035] Figure 13 This is a schematic diagram of the structure of the controllable extrusion ring of the present invention when it is open.

[0036] In the diagram: 1. Base plate; 2. Adjustment mechanism; 3. Hydraulic cylinder; 301. Push rod; 302. Cylinder barrel; 303. Drain cylinder; 304. Piston; 305. Bottom plug; 306. Annular support; 307. Rupert's Tear; 308. Controllable extrusion ring; 310. Concave arc surface; 311. Arc-shaped support body; 312. Piezoelectric ceramic block; 313. Hydraulic oil inlet / outlet; 4. Limiting cylinder; 5. Support plate; 6. Servo motor; 7. Insulating platform; 8. Rotary drum; 9. Annular guide rail; 10. Support rod; 11. Insulating plate; 12. Top plate; 13. 14. Storage box; 15. Baffle; 16. Partition; 17. Blocking plate; 18. Guide rod; 19. Spring; 20. Support ring; 21. Handle; 22. Stud; 23. Locking mechanism; 24. Door panel; 25. Fixing ring; 26. Electric telescopic rod; 27. Connecting plate; 28. Insert rod; 29. ​​Support rod; 30. Limiting component; 31. Roller; 32. Outrigger control panel; 33. Platform lifting operation rod; 34. Outrigger lowering button; 35. Outrigger extending button; 36. Switch key slot; 37. Outrigger. Detailed Implementation

[0037] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0038] To improve stability during rotation, such as Figure 1 , Figure 2 and Figure 6 A lifting insulating platform for live-line work on low-voltage lines includes: a base plate 1, with four rollers 31 equipped with braking function mounted in a rectangular array at the bottom of the base plate 1; an adjustment mechanism 2 mounted on the top of the base plate 1, the adjustment mechanism 2 including a hydraulic cylinder 3 mounted at the center of the base plate 1 via a mounting base; a support plate 5 mounted on the top of the piston rod of the hydraulic cylinder 3 via multiple bolts; four limiting cylinders 4 fixedly inserted in a rectangular array on the top of the base plate 1; a support rod 29 mounted on the bottom of the support plate 5 movably inserted into the inner side of the limiting cylinder 4; and a limiting element 30 bolted to the bottom of the support rod 29 to prevent the support rod 29 from disengaging from the limiting cylinder 4. The top of 5 has a mounting groove, and a servo motor 6 is installed at the bottom center of the mounting groove. A reinforcing plate is fixedly sleeved on the side wall of the servo motor 6. The reinforcing plate is installed at the bottom of the mounting groove by multiple bolts to increase the stability of the servo motor 6. An insulating platform 7 is installed on the top of the output end of the servo motor 6 by bolts. An annular guide rail 9 is installed on the bottom edge of the mounting groove by multiple bolts. A rotating cylinder 8 welded to the bottom of the insulating platform 7 is slidably connected to the top of the annular guide rail 9. Support rods 10 are welded to the four corners of the top of the insulating platform 7, and an insulating plate 11 is connected between the lower parts of adjacent support rods 10. A top plate 12 is welded between the tops of the four support rods 10.

[0039] For easier access to and from work tools, such as Figure 1 , Figure 3 and Figure 4A storage mechanism 13 is installed on the top of the top plate 12. The storage mechanism 13 includes a storage box 14 that is movably inserted into the middle of the top plate 12. A baffle 15 is installed on the top of the storage box 14 by multiple bolts. The baffle 15 can prevent water from entering the top of the storage box 14. Four guide rods 18 are connected in a rectangular array at the bottom of the baffle 15, and the guide rods 18 are movably inserted into the corresponding side of the top plate 12. The top of the guide rods 18 is integrally injection molded with studs 22. The integral injection molding structure has higher strength and is more durable, and the studs 22 are screwed together. On the corresponding side of the bottom of the baffle 15, the guide rod 18 is convenient to be disassembled and assembled. The side wall of the guide rod 18 is fitted with a spring 19. Both ends of the spring 19 are fixedly fitted with support rings 20, and the two support rings 20 are respectively supported on the bottom of the baffle 15 and the top of the top plate 12. The bottom center of the storage box 14 is fitted with a handle 21 by screws. Multiple partitions 16 are fixedly inserted in parallel in the inner cavity of the storage box 14. The partitions 16 divide the storage box 14 into multiple storage spaces. The front and rear sides of the storage box 14 are connected with blocking plates 17 by hinges.

[0040] To facilitate opening and closing of door panel 24, such as Figure 1 and Figure 5 The rear insulating plate 11 is equipped with a locking mechanism 23. The rear insulating plate 11 is composed of two door panels 24, and the door panels 24 are connected to the corresponding side of the support rod 10 by hinges. The locking mechanism 23 includes an electric telescopic rod 26 installed on the rear side of one door panel 24 by a mounting base. Two corresponding fixing rings 25 are welded to the rear side of both door panels 24. The output end of the electric telescopic rod 26 is connected to a connecting plate 27 by bolts. Two insert rods 28 are connected to the side of the connecting plate 27 away from the electric telescopic rod 26 by bolts, and the insert rods 28 are inserted into the corresponding two fixing rings 25.

[0041] Even with the most comprehensive safety measures, workers are still at risk of electric shock during electrical operations. The best course of action in case of electric shock is to disconnect the body from the power source. Ideally, the platform should immediately drop, pulling the worker away from the power source. However, the platform is supported by a hydraulic cylinder 3, which operates very slowly and cannot meet these requirements. Therefore, this embodiment further modifies the hydraulic cylinder 3, as follows: Figures 8 to 13The hydraulic cylinder 3 includes a push rod 301, a cylinder barrel 302, and a drain cylinder 303 arranged sequentially from top to bottom. The push rod 301 is fitted into the cylinder barrel 302 from top to bottom, and a piston 304 is provided at the lower end of the push rod 301. The piston 304 is slidably fitted with the inner circumferential surface of the cylinder barrel 302. The bottom of the cylinder barrel 302 is an open end and communicates with the drain cylinder 303. A hydraulic oil inlet / outlet hole 313 is provided on the lower side wall of the cylinder barrel 302. A bottom plug 305 is slidably fitted inside the bottom of the cylinder barrel 302. The upper part of the bottom plug 305 is fitted inside the cylinder barrel 302, and the lower part extends into the drain cylinder 303. An annular support 306 is installed at the bottom of the drain cylinder 303. The inner diameter of the annular support 306 is larger than the diameter of the bottom plug 305. The bottom plug 305 and the annular support 306 are connected together. The height of all 6 is lower than the internal height of the drain cylinder 303; multiple Rupert's Tears 307 are evenly clamped between the bottom plug 305 and the annular support 306; a controllable squeezing ring 308 is fixedly sleeved at the tail of the Rupert's Tears 307; a wire worn or fixed on the worker and in contact with the skin is electrically connected to a current sensing sensor or a voltage sensing sensor; a controller can select to control the controllable squeezing ring 308 to burst the tail of the Rupert's Tears 307 based on the current or voltage data monitored by the current sensor or voltage sensor, thereby causing the Rupert's Tears 307 to disintegrate instantly; after the Rupert's Tears 307 disintegrates, the bottom plug 305 loses support and falls into the middle of the annular support 306, and the bottom of the cylinder 302 is exposed and connected to the drain cylinder 303.

[0042] The bottom outer corner of the bottom plug 305 and the top inner corner of the annular support 306 are respectively provided with concave arc surfaces 310 that can roughly match the surface arc of Rupert's Tears 307; Rupert's Tears 307 is wrapped and clamped by the common part of the two opposing concave arc surfaces 310.

[0043] The controllable compression ring 308 includes two arc-shaped support bodies 311 hinged to each other at one end; multiple piezoelectric ceramic blocks 312 that can expand and contract radially under the action of current are uniformly embedded on the inner side of the arc-shaped support bodies 311; the other end of the two arc-shaped support bodies 311 can be detachably connected by bolts or buckles; after clamping, the piezoelectric ceramic blocks 312 abut against the tail surface of Rupert's Tears 307; the controller controls each piezoelectric ceramic block 312 to squeeze together towards the tail of the clamped Rupert's Tears 307, causing Rupert's Tears 307 to disintegrate instantly.

[0044] An airbag device is installed on the base plate 1. When a worker is electrocuted, the controller simultaneously triggers the airbag device to provide cushioning for the falling insulated platform. This airbag device can be made using automotive airbag technology.

[0045] Working principle: This low-voltage line live-line working lifting insulating platform connects the device to an external power source. The operator inserts the key into the switch key slot 36 to turn on the power. The support legs 37 are reliably supported on the ground by controlling the support leg descent button 34 and the support leg extension button 35 in the support leg control panel 32. By driving the electric telescopic rod 26, the two insertion rods 28 can be moved out of the fixing ring 25, thus opening the door panel 24 and entering the top of the insulating platform 7. Then, the insertion rods 28 are controlled to insert into the fixing ring 25 to lock the two door panels 24 to ensure the safety of subsequent operations.

[0046] After the hydraulic cylinder 3 drives the support plate 5 to rise to a suitable height by controlling the lifting lever 33 of the operating platform, the servo motor 6 drives the insulating platform 7 to adjust the orientation of the insulating platform 7. During the rotation of the insulating platform 7, the rotating drum 8, in conjunction with the annular guide rail 9, increases the stability of the rotation of the insulating platform 7, ensuring higher stability during the adjustment and rotation process, making the staff safer.

[0047] The worker can pull down the storage box 14 by forcefully pulling down the handle 21 and holding it. The magnetic spring 19 will be compressed. Then, the blocking plate 17 can be opened to take out the working tools in the storage box 14. After releasing the handle 21, the storage box 14 will be reset by the spring 19 to avoid affecting the operation.

[0048] When workers are working, they need to wear or secure a wire or conductor that comes into contact with their skin. This wire is electrically connected to a current-sensing sensor or voltage-sensing sensor to detect and monitor the current, thus determining whether the person is experiencing an electric shock. The controller, based on the current or voltage signal triggered by the current or voltage sensor, controls the controllable compression ring 308 to burst the tail of the "Rupert's Tear" 307. This cleverly utilizes the remarkable physical properties of "Rupert's Tear": the teardrop itself is much harder than ordinary glass, able to withstand 8 tons of pressure without breaking; however, if its slender tail is grasped and slight pressure is applied, the entire glass tear will instantly shatter and disintegrate. The Rupert's Tear 307... 7. After being crushed and disintegrated, the bottom plug 305 loses its support and falls into the middle of the annular support 306, exposing the bottom of the cylinder 302 and connecting it with the drain cylinder 303. Under its own weight and the pressure of the piston 304 above, the hydraulic oil in the cylinder 302 is squeezed into the drain cylinder 303 in a very short time, thus completely releasing the hydraulic oil in the drain cylinder 303. After losing its support, the piston 304 and push rod 301 sink rapidly under their own weight and the pressure of the insulating platform above and the workers, thus physically and quickly relieving the workers from electric shock and reducing the harm caused by electric shock. At the same time, the safety airbag device installed on the base plate 1 also reacts immediately and inflates, providing a buffer for the falling platform and ensuring that the workers are not injured by the fall.

[0049] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low voltage line live working lifting platform, characterized in that, Include: The bottom plate (1), the top of the bottom plate (1) is provided with an adjusting mechanism (2), and the upper part of the adjusting mechanism (2) is provided with a storage mechanism (13); The adjusting mechanism (2) comprises a hydraulic cylinder (3) installed at the center of the bottom plate and a support plate (5) installed at the top of the hydraulic cylinder (3), a plurality of limiting barrels (4) are arranged in a rectangular array on the top of the bottom plate (1), a support rod (29) installed at the bottom of the support plate (5) is movably inserted into the inner side of the limiting barrel (4), an installation slot is formed in the top of the support plate (5), a servo motor (6) is installed at the bottom center of the installation slot, an insulating table (7) is installed at the top of the output end of the servo motor (6), an annular guide rail (9) is installed at the bottom edge of the installation slot, and a rotating drum (8) is slidably connected to the top of the annular guide rail (9) and installed at the bottom of the insulating table (7); The hydraulic cylinder (3) comprises a push rod (301), a cylinder barrel (302) and a liquid discharge barrel (303) arranged in sequence from top to bottom; The push rod (301) is sleeved into the cylinder barrel (302) from top to bottom, and a piston (304) is arranged at the lower end of the push rod (301); The piston (304) is movably sleeved with the inner circumferential surface of the cylinder barrel (302); The bottom of the cylinder barrel (302) is an open end and communicates with the liquid discharge barrel (303); A hydraulic oil inlet and outlet hole (313) is arranged on the lower part of the side wall of the cylinder barrel (302); A bottom plug (305) is movably sleeved in the bottom of the cylinder barrel (302); The bottom plug (305) is sleeved in the cylinder barrel (302) and extends into the liquid discharge barrel (303); An annular support (306) is installed in the bottom of the liquid discharge barrel (303); The inner diameter of the annular support (306) is greater than the diameter of the bottom plug (305); The height of the bottom plug (305) and the annular support (306) is lower than the internal height of the liquid discharge barrel (303); A plurality of luppert tears (307) are uniformly clamped between the bottom plug (305) and the annular support (306); A controllable extrusion ring (308) is fixedly sleeved at the tail of the luppert tear (307); A wire in contact with the skin of an operator is electrically connected to a current or voltage sensor; A controller can selectively control the controllable extrusion ring (308) to extrude the tail of the luppert tear (307) according to the current or voltage data monitored by the current sensor or voltage sensor, so that the luppert tear (307) is instantaneously disintegrated; After the luppert tear (307) is disintegrated, the bottom plug (305) falls into the middle of the annular support (306) and exposes the bottom of the cylinder barrel (302) to communicate with the liquid discharge barrel (303).

2. A low voltage line live working lifting platform as claimed in claim 1, characterized in that The top of the insulating table (7) is provided with a support rod (10) at each corner, and adjacent support rods (10) are connected by an insulating plate (11), and the rear insulating plate (11) is provided with a locking mechanism (23). The top of the four support rods (10) is provided with a top plate (12).

3. A low voltage line live working lifting platform as claimed in claim 2, characterized in that The storage mechanism (13) comprises a storage box (14) movably inserted in the middle of the top plate (12) and a baffle (15) connected to the top of the storage box (14), the bottom of the baffle (15) is connected with four guide rods (18) movably inserted in the corresponding side of the top plate (12) in a rectangular array, the side wall of the guide rod (18) is sleeved with a spring (19) supported between the baffle (15) and the top plate (12), and the bottom center of the storage box (14) is provided with a handle (21).

4. A low voltage line live working lifting platform as claimed in claim 3, characterized in that The inner cavity of the storage box (14) is longitudinally inserted with a plurality of partitions (16) side by side, and the front and rear sides of the storage box (14) are connected with baffle plates (17) through hinges.

5. A low voltage line live working lifting platform as claimed in claim 3, characterized in that, The two ends of the spring (19) are connected with support rings (20), and the two support rings (20) are supported on the bottom of the baffle (15) and the top of the top plate (12) respectively.

6. A low voltage line live working lifting platform as claimed in claim 3, characterized in that, The top of the guide rod (18) is integrally formed with a stud (22), and the stud (22) is screwed on the corresponding side of the bottom of the baffle (15).

7. A low voltage line live working lifting platform as claimed in claim 2, characterized in that, The rear insulation plate (11) is composed of two door plates (24), and the door plates (24) are connected to the corresponding sides of the support rod (10) through hinges, the locking mechanism (23) comprises an electric telescopic rod (26) installed on the rear side of one door plate (24), the rear sides of the two door plates (24) are connected with two corresponding fixed rings (25), the output end of the electric telescopic rod (26) is connected with a connecting plate (27), the side away from the electric telescopic rod (26) of the connecting plate (27) is connected with two insertion rods (28), and the insertion rods (28) are inserted into the corresponding two fixed rings (25).

8. A low voltage line live working lifting platform as claimed in claim 1, characterized in that, The bottom outside corner of the bottom plug (305) and the top inside corner of the annular support (306) are oppositely provided with inner concave curved surfaces (310) which can substantially match the surface curved surface of the Rupert tear (307); the Rupert tear (307) is clamped by the two inner concave curved surfaces (310) together.

9. A low voltage line live working lifting platform as claimed in claim 8, characterized in that The controllable extrusion ring (308) comprises two arc-shaped support bodies (311) hingedly connected at one end; the inner sides of the arc-shaped support bodies (311) are uniformly embedded with a plurality of piezoelectric ceramic blocks (312) which can stretch and contract in the radial direction under the action of electric current; the other ends of the two arc-shaped support bodies (311) are detachably connected through bolts or buckles; after clamping, the piezoelectric ceramic blocks (312) abut against the tail surface of the Rupert tear (307); the controller controls the piezoelectric ceramic blocks (312) to extrude the tail of the clamped Rupert tear (307) together, so that the Rupert tear (307) disintegrates instantaneously; a safety airbag device is provided on the bottom plate (1), and when the worker is electrified, the controller controls the safety airbag device to trigger at the same time, providing buffer for the falling insulation platform.

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