Portable sulfur hexafluoride gas cylinder transport device

Abstract

The present invention discloses a portable sulfur hexafluoride gas cylinder transport device, which can conveniently and reliably assist in the transport of sulfur hexafluoride gas cylinders; and can be very convenient to enter and exit a transfer vehicle. The present invention comprises a rectangular frame, the front end of the frame is a handle end, and the rear end is a tail end; it also comprises a heat-insulating cover plate, which is two symmetrical semicircular structures, and the same side of the two heat-insulating cover plates is connected to the cover plate shaft; the two sides of the lower heat-insulating cover plate are rotatably mounted on the frame through the main shaft; four fixed wheels are installed at the bottom of the frame, namely fixed wheel I, fixed wheel II, fixed wheel III and fixed wheel IV; four leg wheels are also installed at the bottom of the frame through four leg rods; the four leg wheels are leg wheel I, leg wheel II, leg wheel III and leg wheel IV; leg wheel I, leg wheel III, fixed wheel I and fixed wheel III are located on the same side of the frame, and leg wheel II, leg wheel IV, fixed wheel II and fixed wheel IV are located on the other side of the frame.

Description

Technical Field

[0001] The invention relates to a gas cylinder transport device, in particular to a device for transporting sulfur hexafluoride gas cylinders. Background Art

[0002] SF6 is widely used as an insulating medium for high-voltage electrical equipment. SF6 gas-insulated fully enclosed switchgear occupies much less space than conventional open high-voltage distribution equipment, and its operation is not affected by external meteorological and environmental conditions. Therefore, it is not only widely used in ultra-high voltage and extra-high voltage power systems, but also has begun to be used in distribution networks (SF6 gas-insulated switchgear and ring network power supply units). SF6 gas-insulated transformers have the advantages of fireproof and explosion-proof. This type of distribution transformer is particularly suitable for power supply in densely populated areas and high-rise buildings.

[0003] With the increasing use of SF6 gas-filled electrical equipment, the proportion of SF6 gas filling equipment filling and replenishing work in the daily work of substation maintenance is also increasing. The filling and replenishing work seems to be relatively simple, just filling the high-pressure gas in the SF6 gas cylinder into the equipment, but the factors such as the transfer of gas cylinders and the pressure in the gas cylinders being easily affected by temperature increase the difficulty of filling and replenishing. It is necessary to design a portable transfer vehicle, which should have the following two functions

[0004] 1. It is convenient to transport SF6 gas cylinders, including horizontal transportation on the ground and long-distance transportation by loading and unloading vehicles. Because a single gas cylinder is heavy (about 100KG when fully filled with gas), safety and convenience are ensured during the transportation process, and only two workers are needed to operate it.

[0005] 2. When the outside temperature is low, the SF6 gas in the bottle will be cooled and the pressure will be reduced, which will cause the inflation process to be slow or impossible. Therefore, the transfer vehicle should have a self-heating function to meet the requirements for gas pressure under low temperature conditions.

[0006] At present, there is no convenient gas cylinder transporter for inflation work. The transfer and loading and unloading of gas cylinders all rely on manpower. Since a SF6 gas cylinder weighs 100Kg when fully inflated, the weight of a single gas cylinder is too large, and the cylinder body is cylindrical, it is not convenient for two workers to carry it at the same time. There is a risk of crushing or hitting injuries when a single person carries it. Although the operation process of replenishing gas is not very troublesome, the transportation of gas cylinders increases the difficulty of replenishing gas. In addition, every winter, the gas cylinders need to be placed in a warm room in advance before replenishing gas to maintain the gas pressure in the cylinders. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a portable sulfur hexafluoride gas cylinder transport device in view of the deficiencies in the above-mentioned prior art, which can conveniently and reliably assist in the transport of sulfur hexafluoride gas cylinders and can be very conveniently put in and out of a transfer vehicle.

[0008] In order to achieve the above object, the present invention discloses the following technical solutions:

[0009] A portable sulfur hexafluoride gas cylinder carrying device comprises a rectangular frame, the front end of the frame is a handle end, and the rear end of the frame is a tail end;

[0010] It also includes a heat-insulating cover plate for wrapping and clamping the sulfur hexafluoride gas cylinder. The heat-insulating cover plates are two symmetrical semicircular structures. The same side of the two heat-insulating cover plates is connected to the cover plate shaft; the two sides of the lower heat-insulating cover plate are rotatably mounted on the frame through the main shaft;

[0011] Four fixed wheels are installed at the bottom of the frame, namely fixed wheel I, fixed wheel II, fixed wheel III and fixed wheel IV;

[0012] Four outrigger wheels are also installed at the bottom of the frame through four outrigger rods; the four outrigger wheels are outrigger wheel I, outrigger wheel II, outrigger wheel III and outrigger wheel IV; outrigger wheel I, outrigger wheel III, fixed wheel I and fixed wheel III are located on the same side of the frame, and outrigger wheel II, outrigger wheel IV, fixed wheel II and fixed wheel IV are located on the other side of the frame;

[0013] The top of the leg rod is hingedly mounted on the hinged piece on the supporting leg on the bottom surface of the frame; a folding rod is connected between each leg rod and the frame, the folding rod includes an upper folding rod hinged to the frame through the upper hinged piece on the folding rod on the bottom surface of the frame, and the folding rod also includes a lower folding rod hinged to the leg rod; the bottom end of the upper folding rod and the top end of the lower folding rod are rotatably mounted on the two ends of the linkage block respectively; a support sleeve is slidably mounted on the upper folding rod, and slots are provided on both sides of the support sleeve, and a pin for cooperating with the slot is provided on the surface of the lower folding rod, and when the upper folding rod and the lower folding rod are located in the same straight line, the slot of the support sleeve is engaged with the pin.

[0014] As a preferred embodiment of the present invention: a triangular-structured support frame is installed at the center position of the upper surface of both sides of the frame, a bearing seat is installed on the support frame, a bearing is installed in the bearing seat, and both ends of the main shaft are fixedly installed in the bearing; the two insulation cover plates are connected by a lock on the side away from the cover plate axis; the handle end of the frame is installed with a baffle for limiting the insulation cover plate and the sulfur hexafluoride gas cylinder.

[0015] As a preferred embodiment of the present invention: a limit plate for limiting the highest movement position of the support sleeve is also provided on the upper folding rod.

[0016] As a preferred embodiment of the present invention: along the direction from the rear end to the handle end, the fixed wheel I and the fixed wheel II are respectively located behind the leg wheel I and the leg wheel II; the fixed wheel III and the fixed wheel IV are respectively located behind the leg wheel III and the leg wheel IV.

[0017] As a preferred implementation manner of the present invention: the linkage block is a hinge structure.

[0018] As a preferred embodiment of the present invention: heating plates are evenly distributed in the thermal insulation cover plate, and the heating plates are controlled to heat by a controller in a device box installed on the frame; a 12V lithium battery for powering the heater is also installed on the frame.

[0019] As a preferred implementation manner of the present invention: the heating plate is an arc-shaped heating plate.

[0020] As a preferred embodiment of the present invention: the handle end is provided with a rubber handle cover; the rear end of the frame is also provided with a rubber handle cover, and the rear end of the frame is also provided with a rear baffle for limiting the sulfur hexafluoride gas cylinder.

[0021] As a preferred implementation manner of the present invention: the fixed wheel and the outrigger wheels are both provided with brake devices; and the outrigger wheels are universal wheels.

[0022] The beneficial effects of the present invention are:

[0023] The portable sulfur hexafluoride gas cylinder transport device disclosed in the present invention comprises a rectangular frame, the front end of the frame is a handle end, and the rear end is a tail end; the handle end is pulled from the front, and the tail end is pushed from the rear, which is very labor-saving for two people to operate, and can greatly improve the transport efficiency in frequent gas cylinder transport work;

[0024] It also includes an insulating cover plate for wrapping and clamping the sulfur hexafluoride gas cylinder. The insulating cover plates are two symmetrical semicircular structures, and the same side of the two insulating cover plates is connected to the cover plate shaft; the two sides of the lower insulating cover plate are installed on the frame through the rotation of the main shaft; the insulating cover plate is a closable structure, and after closing, the gas cylinder can be reliably wrapped and clamped to achieve the fixation of the gas cylinder; the entire loading and unloading process can very conveniently use the rotation of the main shaft to flip the vertical gas cylinder to the horizontal state for transportation or flip the horizontal gas cylinder to the vertical state for unloading the gas cylinder, so the entire flipping process is very labor-saving, stable and reliable;

[0025] In view of the fact that a large amount of work is required to place the gas cylinders on a transport vehicle such as a bucket truck during the gas cylinder transportation process, the present invention designs foldable outrigger wheels and fixed wheels that can stably support the movement and lock. Specifically,

[0026] When the trolley is pushed to the rear of the engineering vehicle (transfer vehicle), the two fixed wheels near the rear first contact the engineering vehicle bucket. When the push continues, the four leg wheels shrink and fold in turn. The linkage block is based on the hinge structure principle. When the support sleeve droops naturally, it covers the upper and lower folding rods, so that the hinge cannot be folded. When the two fixed wheels near the tail end are already in the bucket, the support sleeve can be manually pulled up, and the front two legs can be folded. The same principle is used to continue pushing inward until all four fixed wheels contact the bucket, manually pull up the support sleeve, fold the back two legs, and the gas cylinder is loaded. Then the brakes of the four fixed wheels are turned on to lock the wheels to prevent movement and collision due to bumps during transportation. When unloading, you only need to pull outward. When the back two bracket wheels leave the bucket, they automatically extend and touch the ground. When the legs are perpendicular to the ground, the support sleeves automatically droop and cover the hinge part, which can fix the legs to prevent folding during the push and pull process, and the gas cylinder can be unloaded. This greatly facilitates the handling and transfer of gas cylinders by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a three-dimensional structure of a specific embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0029] Figure 3 It is a schematic diagram of the unfolded state of the folding structure of the outrigger wheel of the present invention;

[0030] Figure 4 It is a schematic diagram of the folding process of the folding structure of the outrigger wheel of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure in a top view of a specific embodiment of the present invention;

[0032] Figure 6 It is a partial schematic diagram of a preferred embodiment of the folding structure of the support wheel of the present invention;

[0033] Figure 7 It is a partial schematic diagram of a preferred embodiment of the folding structure of the support wheel on the same side of the present invention;

[0034] Figure 8 It is a structural schematic diagram of a preferred embodiment of the heat insulating cover plate of the present invention.

[0035] Description of reference numerals:

[0036] 100-main shaft, 101-bearing, 102-support frame; 201-fixed wheel I, 202-fixed wheel II, 203-fixed wheel III, 204-fixed wheel IV, 205-outrigger wheel I, 206-outrigger wheel II, 207-outrigger wheel III, 208-outrigger wheel IV;

[0037] 300-Sulfur hexafluoride gas cylinder

[0038] 401-device box, 402-insulation cover plate, 403-cover plate shaft;

[0039] 502-pillar hinge; 5001-folding rod upper hinge, 5002-leg rod upper hinge, 5003-upper folding rod, 5004-limiting plate, 5005-lower folding rod, 5006-linkage block, 5007-pin;

[0040] 601-pillar sleeve, 602-pillar sleeve; 6001-card slot;

[0041] 701-Heating plate. DETAILED DESCRIPTION

[0042] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0043] like Figure 1-8 As shown, it shows a specific embodiment of the present invention. As shown in the figure, the portable sulfur hexafluoride gas cylinder transport device disclosed in the present invention comprises a rectangular frame, the front end of the frame is a handle end, and the rear end is a tail end;

[0044] It also includes a heat-insulating cover plate 402 for wrapping and clamping the sulfur hexafluoride gas cylinder 300. The heat-insulating cover plates 402 are two symmetrical semicircular structures. The same side of the two heat-insulating cover plates 402 is connected to the cover plate shaft 403. The two sides of the lower heat-insulating cover plate are rotatably mounted on the frame through the main shaft 100.

[0045] Four fixed wheels are installed at the bottom of the frame, namely fixed wheel I201, fixed wheel II202, fixed wheel III203 and fixed wheel IV204;

[0046] Four outrigger wheels are also installed at the bottom of the frame through four outrigger rods; the four outrigger wheels are outrigger wheel I205, outrigger wheel II206, outrigger wheel III207 and outrigger wheel IV208; outrigger wheel I205, outrigger wheel III207, fixed wheel I201 and fixed wheel III203 are located on the same side of the frame, and outrigger wheel II, outrigger wheel IV, fixed wheel II and fixed wheel IV are located on the other side of the frame;

[0047] The top of the leg rod is hingedly mounted on the support leg upper hinge 5002 on the bottom surface of the frame; a folding rod is connected between each leg rod and the frame, the folding rod includes an upper folding rod 5003 hinged to the frame through the folding rod upper hinge 5001 on the bottom surface of the frame, and the folding rod also includes a lower folding rod 5005 hinged to the leg rod; the bottom end of the upper folding rod 5003 and the top end of the lower folding rod 5005 are rotatably mounted on the two ends of the linkage block 5006 respectively; a support sleeve 601 is slidably mounted on the upper folding rod 5003, and a card slot 6001 is provided on both sides of the support sleeve 601, and a card pin 5007 for cooperating with the card slot 6001 is provided on the surface of the lower folding rod 5005, and when the upper folding rod 5003 and the lower folding rod 5005 are located in the same straight line, the card slot 6001 of the support sleeve (601, 602) is engaged with the card pin 5007. In this embodiment, the support sleeve is designed as a sliding structure, and the downward movement of the support sleeve relies on gravity. Subsequent improved embodiments can actually make the support sleeve always move downward under the action of the spring. At this time, the support sleeve will be smoother, faster and more labor-saving in the process of moving downward to catch the pin.

[0048] As a preferred embodiment of the present invention, Figure 1 , 2 As shown in 5: a triangular support frame is installed at the center of the upper surface of both sides of the frame, a bearing seat is installed on the support frame, a bearing is installed in the bearing seat, and both ends of the main shaft are fixedly installed in the bearing; the two insulation cover plates 402 are connected by a lock on the side away from the cover plate axis; the handle end of the frame is installed with a baffle for limiting the insulation cover plate 402 and the sulfur hexafluoride gas cylinder 300. The triangular support frame is very stable, and the design of the bearing seat and the bearing makes the rotation of the main shaft 100 very smooth. The lock can be reliably locked after the insulation cover plate 402 is closed to prevent the insulation cover plate 402 from opening automatically during transportation. The limit plate can be designed according to the actual limit needs. As long as the limit position does not affect the loading and unloading process, the limit structure can be installed, the purpose is to prevent the gas cylinder from falling off and rotating arbitrarily.

[0049] As a preferred embodiment of the present invention, Figure 1 , 2 As shown: the upper folding rod 5003 is also provided with a limit plate 5004 for limiting the highest movement position of the support sleeve (601, 602). The limit plate disclosed in this preferred embodiment is an annular structure, which reliably limits the highest movement position of the support sleeve, so that the position of the support sleeve is reliably limited for easy operation.

[0050] As a preferred embodiment of the present invention, Figure 1 , 25: along the direction from the rear end to the handle end, the fixed wheel I201 and the fixed wheel II202 are respectively located behind the leg wheel I205 and the leg wheel II206; the fixed wheel III203 and the fixed wheel IV204 are respectively located behind the leg wheel III207 and the leg wheel IV208. The positional relationship disclosed in this embodiment enables the contact and separation during the loading and unloading process and the folding and opening of the leg wheels to work reasonably and conveniently, and the auxiliary carrying process is smoother and more efficient.

[0051] As a preferred embodiment of the present invention, Figure 1 , 2 , 4, 6, and 7: The linkage block 5006 is a hinge structure.

[0052] As a preferred embodiment of the present invention, Figure 1 , 2 , 5, and 8 show: the heat-insulating cover plate 402 is evenly distributed with heating plates 701, and the heating plates 701 are controlled by a controller in a device box installed on the frame; a 12V lithium battery for powering the heater is also installed on the frame. This embodiment discloses a structure for heating a gas cylinder. In view of the heating requirements mentioned in the background technology section, this embodiment designs a heating structure for the transport environment, so that the entire transport process can be preheated, and it can be used directly when it arrives at the use site, meeting the use requirements of sulfur hexafluoride gas cylinders, greatly saving the time of separate heating, and avoiding the phenomenon that the temperature influence causes the inability to use on site.

[0053] As a preferred embodiment of the present invention, Figure 8 As shown: the heating plate 701 is an arc-shaped heating plate 701. The arc-shaped heating plate 701 matches the shape of the heat-insulating cover plate 402 and also matches the cylindrical structure of the gas cylinder, so the heating is more efficient and uniform.

[0054] As a preferred embodiment of the present invention, as shown in the figure: the handle end is provided with a rubber handle cover; the rear end of the frame is also provided with a rubber handle cover, and the rear end of the frame is also provided with a rear baffle for limiting the sulfur hexafluoride gas cylinder 300. The rubber handle cover can make the hand holding more convenient, stable and reliable during the pulling and pushing process.

[0055] As a preferred embodiment of the present invention, as shown in the figure: the fixed wheel and the outrigger wheel are both provided with brake devices; the outrigger wheel is a universal wheel, and the outrigger wheel is more flexible during movement.

[0056] In summary: The present invention discloses a portable sulfur hexafluoride gas cylinder transport device, which can realize safe, fast and convenient transport of gas cylinders. At the same time, the temperature of the gas cylinder is maintained during transportation, and the gas pressure in the cylinder is kept constant. The present invention can realize fast and convenient loading and unloading of SF6 gas cylinders. When the gas cylinder is standing upright on the ground, the tilting platform can be flipped to facilitate placing the gas cylinder horizontally on the trolley platform. When the gas cylinder is standing upright on the ground, after the gas cylinder is placed on the platform, it can be rotated to a horizontal position, and the rotation axis is the main axis 100.

[0057] The device of the present invention has eight wheels, as shown in the figure, four of which are short distances from the frame of the device, namely wheels 201, 202, 203, and 204, which are rigidly connected to the platform, cannot be retracted, and are equipped with brake devices. The remaining four are leg wheels, such as wheels 205, 206, 207, and 208. When the device is pushed to the rear of the engineering vehicle, wheels 201 and 202 in the figure first contact the engineering vehicle bucket, and when the device is pushed inward, the four bracket wheels shrink and fold in sequence. The linkage block in the figure is the hinge of the front and rear bracket support column, and there are support sleeves 601 and 602 at the hinge of the support column. When the support sleeves droop naturally, they cover the upper and lower sections of the support, so that the hinge cannot be folded. As shown in the details, when wheels 201 and 202 are already in the bucket, the support sleeve 602 can be manually pulled up, such as the position of the support sleeve 602 in the figure, and the front two legs can be folded at this time. Following the same principle, continue pushing inward until all four fixed wheels are in contact with the bucket, manually pull up the support sleeve 601, fold the two rear legs, and the gas cylinder is loaded. Then open the brakes of the four fixed wheels to lock the wheels to prevent movement and collision due to bumps during transportation. When unloading, just pull outward, and the two rear support wheels will automatically extend and touch the ground when they leave the bucket. When the legs are perpendicular to the ground, the support sleeves will automatically droop and cover the hinge part, thus fixing the legs to prevent folding during the pushing and pulling process, and the gas cylinder can be unloaded. This greatly facilitates the handling and transfer of gas cylinders by the staff.

[0058] Under low temperature conditions, the pressure inside the gas cylinder often decreases due to gas liquefaction. To solve this problem, a heating device must be used when transporting the gas cylinder outdoors under low temperature conditions to maintain the pressure inside the gas cylinder. The present invention is designed with an openable and closable insulating cover. As shown in the figure, the cover 402 can be opened or closed with the axis 403 as the axis. The insulating cover appropriately wraps the bottle body, and the heating device automatically switches on and off according to the set temperature to maintain the temperature of the bottle body within an appropriate range. Since it is only to maintain the temperature of the bottle body, it is only necessary to carry a 12V lithium battery pack as the power source for the heating device. The power supply and temperature control device are installed as shown in the figure. Figure 5 As shown in device box 401, the heating belts are evenly arranged in the heat-insulating cover plate wrapping the bottle body, thereby achieving the heating and heat-insulating function.

[0059] Therefore, the present invention has the following characteristics:

[0060] 1. It can realize safe, fast and convenient transportation of gas cylinders. The whole body assembly has a simple structure, beautiful shape, light weight, convenient and fast transportation, and can be folded. It occupies a small area for storage at ordinary times. Only two workers are needed to complete all the work.

[0061] 2. The present invention has the function of heating and heat preservation, which greatly improves the efficiency of gas replenishment work and has the characteristics of simple structure and convenient operation.

[0062] 3. The present invention can improve the heat-insulating cover plate of the device frame, and different heat-insulating cover plates can be replaced according to different bottle bodies, which is applicable to the transportation of various types of gas cylinders.

[0063] The functions of the main components of the present invention are as follows: main axis 100: the bottle body and the device are turned over along this axis; fixed wheels: when the outrigger wheels are folded, the four fixed wheels can facilitate the movement of the device; outrigger wheels: when the outrigger wheels are opened, the trolley can be easily moved; support hinge 502 (linkage block 5006): the hinge facilitates the folding of the outriggers backwards; support sleeves (601, 602) can keep the outrigger wheels in an open state to maintain stability; device box 401: provides an installation position for the power supply and temperature control device of the heating part, heat insulation cover plate 402: fixes the bottle body and insulates and keeps heat; cover plate shaft 403: the upper and lower covers are opened or closed along this axis; heating plate 701: heating function to maintain the temperature of the bottle body.

[0064] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

[0065] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. Portable sulfur hexafluoride cylinder transport device, characterized by: It comprises a rectangular frame, the front end of the frame is a handle end, and the rear end of the frame is a tail end; It also includes a heat-insulating cover plate for wrapping and clamping the sulfur hexafluoride gas cylinder. The heat-insulating cover plates are two symmetrical semicircular structures. The same side of the two heat-insulating cover plates is connected to the cover plate shaft; the two sides of the lower heat-insulating cover plate are rotatably mounted on the frame through the main shaft; Four fixed wheels are installed at the bottom of the frame, namely fixed wheel I, fixed wheel II, fixed wheel III and fixed wheel IV; Four outrigger wheels are also installed at the bottom of the frame through four outrigger rods; the four outrigger wheels are outrigger wheel I, outrigger wheel II, outrigger wheel III and outrigger wheel IV; outrigger wheel I, outrigger wheel III, fixed wheel I and fixed wheel III are located on the same side of the frame, and outrigger wheel II, outrigger wheel IV, fixed wheel II and fixed wheel IV are located on the other side of the frame; The top of the leg rod is hingedly mounted on the hinged piece on the support leg on the bottom surface of the frame; a folding rod is connected between each leg rod and the frame, the folding rod comprises an upper folding rod hingedly connected to the frame through the hinged piece on the folding rod on the bottom surface of the frame, and the folding rod also comprises a lower folding rod hingedly connected to the leg rod; the bottom end of the upper folding rod and the top end of the lower folding rod are rotatably mounted on the two ends of the linkage block respectively; a support sleeve is slidably mounted on the upper folding rod, and slots are provided on both sides of the support sleeve, and a latch pin for cooperating with the slot is provided on the surface of the lower folding rod, and when the upper folding rod and the lower folding rod are located in the same straight line, the slot of the support sleeve is engaged with the latch pin; A triangular support frame is installed at the center of the upper surface of both sides of the frame, a bearing seat is installed on the support frame, a bearing is installed in the bearing seat, and both ends of the main shaft are fixedly installed in the bearing; the two insulation cover plates are connected by a lock on the side away from the cover plate axis; a baffle for limiting the insulation cover plate and the sulfur hexafluoride gas cylinder is installed at the handle end of the frame; The upper folding rod is also provided with a limit plate for limiting the highest movement position of the support sleeve; Along the direction from the rear end to the handle end, the fixed wheel I and the fixed wheel II are respectively located behind the outrigger wheel I and the outrigger wheel II; the fixed wheel III and the fixed wheel IV are respectively located behind the outrigger wheel III and the outrigger wheel IV; The heat-insulating cover plate is evenly distributed with heating plates, and the heating plates are controlled to heat by a controller in a device box installed on the frame; a 12V lithium battery for powering the heater is also installed on the frame.

2. The portable sulfur hexafluoride cylinder transport device according to claim 1, characterized in that: The linkage block is a hinge structure.

3. The portable sulfur hexafluoride cylinder transport device according to claim 1, characterized in that: The heating plate is an arc-shaped heating plate.

4. The portable sulfur hexafluoride cylinder transport device according to claim 1, characterized in that: The handle end is provided with a rubber handle cover; the rear end of the frame is also provided with a rubber handle cover, and the rear end of the frame is also provided with a rear baffle for limiting the position of the sulfur hexafluoride gas cylinder.

5. The portable sulfur hexafluoride cylinder transport device according to claim 1, characterized in that: The fixed wheel and the outrigger wheels are both provided with brake devices; and the outrigger wheels are universal wheels.

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