An insulating board installation vehicle and its usage method

Abstract

The present invention provides a refractory plate installation vehicle and a method for using the same. The refractory plate installation vehicle includes a base. An angle adjustment frame is connected to the base by a pin shaft to achieve rotation. One side of the fixed frame away from the angle adjustment frame is used to fix the refractory plate, and the fixed frame and the angle adjustment frame are arranged in parallel. A roller mechanism is installed above the base for towing a rope. One end of the rope is tied to the fixed frame to achieve the rotation and falling of the refractory plate. The base is provided with a screw strut for assisting in supporting the base. The roller mechanism includes a crank, a gear set, and a double-groove roller connected in sequence. The rope is wound around the double-groove roller, and the retraction and release are achieved through the crank. The present invention matches the construction of the bottom refractory plate of the Mark III thin-film type enclosure system, effectively solves the problem that manual positioning and installation are impossible due to the large volume and heavy weight of the refractory plate. At the same time, it avoids pure manual installation, effectively reduces the input of construction personnel, and has a simple operation, greatly improving the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the field of installation of bulkhead insulation boards, and particularly to an insulation board installation vehicle and a method for using the same. Background Art

[0002] The MARK-III thin-film containment system is a thin-film containment system widely used in the cargo holds of LNG carriers and the fuel tanks of dual-fuel ships.

[0003] As the core of the liquid tank, the containment system has the characteristics of complex structure, low system working environment, and high sealing requirements. The structure of the containment system from the inside to the outside of the cargo hold is the main shielding layer, the main insulation layer, the secondary shielding layer, the secondary insulation layer, and the outer plate of the cargo hold hull. The main shielding layer is composed of welded stainless steel corrugated plates, and the secondary shielding layer is pasted with composite materials on the secondary insulation layer, between the main and secondary insulation layers. The main insulation layer and the secondary insulation layer are spliced by insulation boards made of plywood and polyurethane foam.

[0004] The LNG cargo hold has a large space. Therefore, during the construction stage of the containment system, the cargo hold is fully scaffolded (platform module) to provide a construction platform. Therefore, the construction area of the cargo hold is divided into layers, namely the top layer, the middle layer, and the bottom layer.

[0005] Due to the large volume and weight of the insulation boards, they cannot be manually carried and assembled. At present, the positioning and installation of the insulation boards in the assembly of the maintenance system are completely completed by manual labor and auxiliary tooling. The installation of the insulation boards on the side walls and the top surface of the cargo hold is completed manually by operating the robotic arm on the middle and top layers of the platform module. However, due to the influence of the support legs of the platform module at the bottom layer, there is no operating space for the robotic arm. At present, for the bottom insulation boards with small weight and small volume, they are manually carried and positioned and installed. However, most of the insulation boards are too large in volume and weight to be manually carried, let alone positioned and installed.

[0006] Therefore, a device is needed to install the insulation boards. Summary of the Invention

[0007] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide an insulation board installation vehicle, which can effectively solve the problem of positioning and installation of insulation boards with large volume and weight, and at the same time reduce the personnel input in the construction of the bottom insulation boards.

[0008] The present invention provides an insulation board installation vehicle, which includes:

[0009] A base;

[0010] A fixed frame and an angle adjustment frame that are parallel and detachable, the angle adjustment frame is connected to the base by a pin shaft to realize rotation, and the side of the fixed frame away from the angle adjustment frame is used to fix the insulation board;

[0011] A drum mechanism, which is installed above the base and used to tow a rope. One end of the rope is tied to the fixed frame. When the fixed frame with the heat insulation board is integrally connected to the angle adjustment frame, the fixed frame is pulled to rotate by the drum mechanism. When the heat insulation board is removed, the fixed frame rotates to a horizontal state and is located below the fixed frame, and then separates from the angle adjustment frame with the heat insulation board, and the fixed frame is slowly lowered by towing with the drum mechanism.

[0012] Preferably, the drum mechanism includes a crank, a gear set, and a double-groove drum connected in sequence. The rope is wound around the double-groove drum, and the retraction and release are realized by the crank.

[0013] Preferably, the gear set is also equipped with a resistance bolt. The resistance bolt rotates around the gear shaft and abuts against the friction disc to provide additional resistance to control the rotation.

[0014] Preferably, the base includes a frame body. The frame body includes side frames along the width direction. Fixed legs and movable legs are respectively provided at both ends of the side frames. The movable legs can move along the side frames. A support rod frame body is fixed outside the side frames. A screw support rod that can move up and down is provided at the end of the support rod frame body close to the movable leg. The screw support rod is connected to the support rod frame body through a screw jack fixed on the support rod frame body, and the screw support rod is threadedly connected to the screw jack.

[0015] Preferably, the first pin seats are symmetrically arranged inside the side frames to connect the angle adjustment frame through a pin shaft.

[0016] Preferably, the rope also passes through a pulley to change the direction of the rope.

[0017] Preferably, the fixed frame includes a first frame body, a rigging hanging ring, a first bolt hole, and a bolt seat. The first frame body is used to fix the heat insulation board. The rigging hanging ring is a hanging structure for the rope. The bolt used in the first bolt hole fixes the heat insulation board on the first frame body. The bolt used in the bolt seat fixes the fixed frame to the angle adjustment frame.

[0018] Preferably, the angle adjustment frame includes a second frame body, a second bolt hole, a second pin seat, and a rigging guide. The second frame body is used to place the fixed frame. The bolt used in the second bolt hole is used to connect the fixed frame. The second pin seat is used to adaptively connect to the first pin seat. The rope passes through the rigging guide and is connected to the rigging hanging ring to lock the falling trajectory during the falling process of the heat insulation board.

[0019] The present invention also provides a method for using the heat insulation board installation vehicle as described above, including the following steps:

[0020] S1: Tighten the resistance bolt of the gear set;

[0021] S2: Connect the rope to the fixed frame;

[0022] S3: Connect and fix the insulation board to be installed and the fixed frame on the installation vehicle with bolts;

[0023] S4: Fix and connect the fixed frame and the angle adjustment frame with bolts;

[0024] S5: Move the installation vehicle to the installation area;

[0025] S6: Loosen the resistance bolt of the gear set, turn the rocker, and slowly lay the insulation board flat. When the inclination angle of the insulation board is too large, tighten the resistance bolt and continue to slowly turn the rocker;

[0026] S7: After the insulation board reaches the horizontal state, adjust the installation position of the insulation board and remove the bolts between the fixed frame and the angle adjustment frame;

[0027] S8: Slowly turn the rocker to slowly lower the insulation board and the fixed frame until the positioning is completed;

[0028] S9: Dismantle the fixed frame, retract each component of the installation vehicle, and install the next insulation board.

[0029] Preferably, when there are already installed insulation boards on one side or both sides of the installation area, step S5 further includes the following steps:

[0030] Move the installation vehicle near the installation area, and support the already installed insulation boards with the movable legs on one side or both sides;

[0031] Loosen the fixing bolts of the movable legs supporting the insulation board, push the installation vehicle forward, and the movable legs move backward relative to the installation vehicle under the obstruction of the already installed insulation boards until the bottom surface of the screw strut is directly above the already installed insulation board, and then lower the screw strut so that its bottom surface supports on the upper surface of the already installed insulation board;

[0032] The adjustment of the installation position of the insulation board in step S7 specifically includes:

[0033] Push the installation vehicle forward. At this time, the movable legs move further backward relative to the installation vehicle under the obstruction of the already installed insulation boards, and the screw strut follows on the already installed insulation board until the insulation board is adjusted to the installation position.

[0034] As described above, the present invention provides an insulating board installation vehicle and a method for using the same. The insulating board installation vehicle includes a base, and an angle adjustment frame is connected to the base by a pin shaft to achieve rotation. The side of the fixed frame away from the angle adjustment frame is used to fix the insulating board, and the fixed frame and the angle adjustment frame are arranged in parallel. A roller mechanism is installed above the base to tow a rope. One end of the rope is tied to the fixed frame to achieve the rotation and falling of the insulating board. The base is also provided with a screw strut for assisting in supporting the entire base. When the working space is limited, the movable leg needs to be moved towards the fixed leg. At this time, the screw strut needs to be used for support to maintain the center of gravity stability and avoid overturning. The roller mechanism includes a crank, a gear set, and a double-groove roller connected in sequence. The rope is wound around the double-groove roller, and the winding and unwinding are achieved through the crank. The gear set is also equipped with a resistance bolt. The resistance bolt rotates around the gear shaft and abuts against the friction disc to provide additional resistance to control the rotation, avoid the insulating board from falling due to insufficient manpower when rotating with the frame, and avoid the insulating board from flipping and falling too fast.

[0035] The present invention matches the construction of the bottom insulating board of the Mark III thin-film type enclosure system, effectively solving the problem that manual positioning and installation are impossible due to the large volume and heavy weight of the insulating board. At the same time, with the help of the present invention, the simple manual installation of the original plan is avoided, the input of construction personnel is effectively reduced, and the operation of the present invention is simple, greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It shows a three-dimensional structural schematic diagram of the installation vehicle in the present invention.

[0037] Figure 2 It shows a three-dimensional structural schematic diagram of the base in the present invention.

[0038] Figure 3 It shows a structural schematic diagram of the roller mechanism.

[0039] Figure 4 It shows a structural schematic diagram of the fixed frame.

[0040] Figure 5 It shows a structural schematic diagram of the angle adjustment frame.

[0041] Figure 6 It shows a schematic diagram of the usage process when there is no installed insulating board near the installation area.

[0042] Figure 7 It shows a schematic diagram of the usage process when there is an installed insulating board near the installation area.

[0043] Figure 8 It shows an installation schematic diagram when there is an installed insulating board on one side of the installation area.

[0044] Figure 9It shows an installation schematic diagram when thermal insulation boards are installed on both sides of the installation area.

[0045] Description of component labels

[0046] 1 Base 21 Crank

[0047] 2 Drum mechanism 22 Gear set

[0048] 3 Pulley 23 Double-groove drum

[0049] 4 Fixed frame 24 Resistance bolt

[0050] 5 Angle adjustment frame 25 Friction disc

[0051] 6 Thermal insulation board 41 First frame body

[0052] 11 Frame 42 Sling hanging ring

[0053] 12 Movable support leg 43 First bolt hole

[0054] 13 Fixed support leg 44 Bolt seat

[0055] 14 First pin seat 51 Second frame body

[0056] 15 Universal wheel 52 Second bolt hole

[0057] 16 Bracing frame body 53 Second pin seat

[0058] 17 Screw bracing 54 Sling guide

[0059] 18 Screw jack Detailed implementation manners

[0060] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0061] When detailing the embodiments of the present invention, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention here. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0062] For ease of description, spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "on" etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatial relationship terms are intended to encompass other orientations of the device in use or operation, in addition to the orientation depicted in the drawings. Further, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between... and..." means including the endpoint values.

[0063] In the context of the present application, the structure in which the first feature described is "above" the second feature may include an embodiment where the first and second features are formed in direct contact, and may also include an embodiment where additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0064] It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0065] As Figure 1 shown, the present invention provides an insulating board installation vehicle, and the insulating board installation vehicle includes:

[0066] a base 1;

[0067] a fixed frame 4 and an angle adjustment frame 5 that are arranged in parallel and can be disassembled. The angle adjustment frame 5 is connected to the base 1 by a pin shaft to achieve rotation. The side of the fixed frame 4 away from the angle adjustment frame 5 is used to fix the insulating board 6;

[0068] a roller mechanism 2, which is installed above the base 1 and is used to tow a rope. One end of the rope is tied to the fixed frame 4; when the fixed frame 4 with the insulating board 6 fixed is integrally connected to the angle adjustment frame 5, the fixed frame 4 is pulled to rotate by the roller mechanism 2; when the insulating board 6 is removed, the fixed frame 4 rotates to a horizontal state and is located below the fixed frame 4, and then separates from the angle adjustment frame 5 with the insulating board 6, and the fixed frame 4 is slowly lowered by towing with the roller mechanism 2.

[0069] Further, as Figure 2As shown, the base 1 includes a frame 11, and the frame 11 includes a side frame along the width direction. The two ends of the side frame are respectively provided with a fixed leg 13 and a movable leg 12, and the movable leg 12 can move along the side frame. A support rod frame 16 is fixed to the outside of the side frame. The end of the support rod frame 16 close to the movable leg 12 is provided with a spiral support rod 17 that can move up and down. The spiral support rod 17 is connected to the support rod frame 16 through a spiral jack 18 fixed on the support rod frame 16, and the spiral support rod 17 is threadedly connected to the spiral jack 18. The support rod frame 16 is used to assist in supporting the entire base 1. When the working space is limited, in order to avoid interference, the movable leg 12 needs to be moved toward the fixed leg 13. At this time, the spiral support rod 17 needs to be used instead of the support to keep the center of gravity stable and avoid overturning. The bottom of the fixed leg 13 and the movable leg 12 are both provided with universal wheels 15 for easy movement.

[0070] Furthermore, the first pin seat 14 is symmetrically arranged on the inner side of the side frame to connect the angle adjustment frame 5 through the pin shaft. The first pin seat 14 should be located in the middle area of ​​the side frame to prevent the fixed frame 4 and the angle adjustment frame 5 from tilting due to the center of gravity shift when rotating.

[0071] Furthermore, if Figure 3 As shown, the roller mechanism 2 includes a crank 21, a gear set 22, and a double-grooved roller 23 connected in sequence. The rope is wound around the double-grooved roller 23, and the retraction and extension are realized by the crank 21. The gear set 22 is also equipped with a resistance bolt 24, which rotates around the gear shaft and abuts against the friction disk 25 to provide additional resistance to control the rotation, so as to prevent the insulation board 6 from falling due to insufficient manpower when rotating with the frame, and to prevent the insulation board 6 from turning over and falling too quickly. In particular, when the insulation board 6 rotates from a vertical state to a horizontal state, the resistance bolt 24 is needed to assist in providing resistance to control the rotation and avoid excessive speed and violent rotation.

[0072] Furthermore, the rope also passes through a pulley 3 to change the direction of the rope.

[0073] Furthermore, if Figure 4 As shown, the fixed frame 4 includes a first frame body 41, a rigging ring 42, a first bolt hole 43, and a bolt seat 44. The first frame body 41 is the main structure for fixing the heat insulation board 6, the rigging ring 42 is a hook structure for the rope, the bolts used in the first bolt hole 43 fix the heat insulation board 6 on the frame body, and the bolts used in the bolt seat 44 fix the fixed frame 4 and the angle adjustment frame 5.

[0074] Furthermore, if Figure 5As shown in the figure, the angle adjustment frame 5 includes a second frame body 51, second bolt holes 52, second pin seats 53, and a rigging guide 54. Among them, the second frame body 51 serves as the main structure for placing the fixed frame 4. The bolts used in the second bolt holes 52 are used to connect the fixed frame 4. The second pin seats 53 are used to adaptively connect to the first pin seats 14, and the ropes pass through the rigging guide 54 and are connected to the rigging hanging rings 42, so as to lock the falling trajectory during the falling process of the heat insulation board 6.

[0075] The present invention also provides a method for using the heat insulation board installation vehicle, as Figure 6 shown, which specifically includes the following steps:

[0076] S1: Tighten the resistance bolt 24 of the gear set 22;

[0077] S2: Connect the rope to the fixed frame 4;

[0078] S3: Wait for the heat insulation board 6 to be installed and fixedly connected to the fixed frame 4 on the installation vehicle with bolts;

[0079] S4: Fix the fixed frame 4 and the angle adjustment frame 5 with bolts;

[0080] S5: Move the installation vehicle to the installation area;

[0081] S6: Loosen the resistance bolt 24 of the gear set 22, rotate the rocker, and slowly lay the heat insulation board 6 flat. When the inclination angle of the heat insulation board 6 is too large, tighten the resistance bolt 24 and continue to slowly rotate the rocker;

[0082] S7: When the heat insulation board 6 reaches the horizontal state, adjust the installation position of the heat insulation board 6 and remove the bolts between the fixed frame 4 and the angle adjustment frame 5;

[0083] S8: Slowly rock the rocker to slowly lower the heat insulation board 6 and the fixed frame 4 until the positioning is completed;

[0084] S9: Dismantle the fixed frame 4, put away each component of the installation vehicle, and install the next heat insulation board 6.

[0085] Specifically, when there are already installed heat insulation boards 6 on one side or both sides of the installation area, as Figure 7 shown, step S5 further includes the following steps:

[0086] Move the installation vehicle near the installation area, and the movable legs 12 on one side or both sides support against the already installed heat insulation board 6;

[0087] Loosen the fixing bolts of the movable leg 12 that holds against the insulation board 6, push the installation vehicle forward. The movable leg 12 moves backward relative to the installation vehicle under the obstruction of the already installed insulation board 6. After the bottom surface of the screw strut 17 is directly above the already installed insulation board 6, lower the screw strut 17 so that its bottom surface supports on the upper surface of the already installed insulation board 6.

[0088] Step S7 for adjusting the installation position of the insulation board 6 specifically includes:

[0089] Push the installation vehicle forward. At this time, the movable leg 12 moves further backward relative to the installation vehicle under the obstruction of the already installed insulation board 6, and the screw strut 17 follows on the already installed insulation board 6 until the insulation board 6 is adjusted to the installation position. As shown in Figure 8 , Figure 9 The figures respectively show the installation schematic diagrams when there are already installed insulation boards on one side or both sides of the installation area.

[0090] In summary, the present invention provides an insulation board installation vehicle and its usage method. The insulation board installation vehicle includes a base. The angle adjustment frame is connected to the base by a pin shaft to achieve rotation. The side of the fixed frame away from the angle adjustment frame is used to fix the insulation board, and the fixed frame and the angle adjustment frame are arranged in parallel. The roller mechanism is installed above the base to tow a rope. One end of the rope is tied to the fixed frame to achieve the rotation and falling of the insulation board. The base is also provided with a screw strut for assisting in supporting the entire base. When the working space is limited, it is necessary to move the movable leg towards the fixed leg. At this time, the screw strut needs to be used for support to maintain the center of gravity stability and avoid tipping over. The roller mechanism includes a crank, a gear set, and a double-groove roller connected in sequence. The rope is wound around the double-groove roller, and the retraction and release are achieved through the crank. The gear set is also equipped with a resistance bolt. The resistance bolt rotates around the gear shaft and abuts against the friction disc to provide additional resistance to control the rotation, avoid the insulation board from tipping over due to insufficient manpower when rotating with the frame, and avoid the insulation board from flipping and falling too fast.

[0091] The present invention matches the construction of the bottom insulation board of the Mark III thin-film type enclosure system, effectively solving the problem that manual positioning and installation are impossible due to the large volume and heavy weight of the insulation board. At the same time, with the help of the present invention, the simple manual installation of the original plan is avoided, effectively reducing the input of construction personnel, and the operation of the present invention is simple, greatly improving the construction efficiency.

[0092] The above embodiments are only illustrative of the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An insulating board installation vehicle, characterized in that, the insulating board installation vehicle includes: a base; a fixed frame and an angle adjustment frame which are arranged in parallel and can be disassembled. The angle adjustment frame is connected to the base by a pin shaft to realize rotation. The side of the fixed frame away from the angle adjustment frame is used to fix the insulating board; a roller mechanism, which is installed above the base and used to tow a rope. One end of the rope is tied to the fixed frame; when the fixed frame with the insulating board is integrally connected to the angle adjustment frame, the fixed frame is pulled to rotate through the roller mechanism; when the insulating board is removed, the fixed frame rotates to a horizontal state and is located below the angle adjustment frame, and then separates from the angle adjustment frame with the insulating board, and the fixed frame is slowly lowered by towing through the roller mechanism.

2. The insulating board installation vehicle according to claim 1, characterized in that, the roller mechanism includes a crank, a gear set, and a double-groove roller connected in sequence. The rope is wound around the double-groove roller, and the winding and unwinding are realized through the crank.

3. The insulating board installation vehicle according to claim 2, characterized in that, the gear set is also equipped with a resistance bolt. The resistance bolt rotates around the gear shaft and abuts against the friction disc to provide additional resistance to control rotation.

4. The insulating board installation vehicle according to claim 3, characterized in that, the base includes a frame body. The frame body includes side frames in the width direction. Fixed legs and movable legs are respectively arranged at both ends of the side frames. The movable legs can move along the side frames. A support rod frame body is fixed on the outside of the side frames. A screw support rod that can move up and down is arranged at the end of the support rod frame body close to the movable legs. The screw support rod is connected to the support rod frame body through a screw jack fixed on the support rod frame body, and the screw support rod is threadedly connected to the screw jack.

5. The insulating board installation vehicle according to claim 4, characterized in that, the first pin seats are symmetrically arranged on the inner side of the side frames to connect the angle adjustment frame through a pin shaft.

6. The insulating board installation vehicle according to claim 1, characterized in that, the rope also passes through a pulley to change the direction of the rope.

7. The insulating board installation vehicle according to claim 1, characterized in that, the fixed frame includes a first frame body, a rigging hanging ring, a first bolt hole, and a bolt seat. The first frame body is used to fix the insulating board. The rigging hanging ring is a hanging structure for the rope. The bolt used in the first bolt hole fixes the insulating board on the first frame body. The bolt used in the bolt seat fixes the fixed frame to the angle adjustment frame.

8. The insulating board installation vehicle according to claim 7, characterized in that, the angle adjustment frame includes a second frame body, a second bolt hole, a second pin seat, and a rigging guide. The second frame body is used to place the fixed frame. The bolt used in the second bolt hole is used to connect the fixed frame. The second pin seat is used to adapt and connect to the first pin seat. The rope passes through the rigging guide and is connected to the rigging hanging ring to lock the falling trajectory during the falling process of the insulating board.

9. A method for using an insulating board installation vehicle as described in claim 4, characterized in that, it includes the following steps: S1: Tighten the resistance bolt of the gear set; S2: Connect the rope to the fixed frame; S3: Fix the insulating board to be installed to the fixed frame on the installation vehicle with bolts; S4: Fix the connection between the fixed frame and the angle adjustment frame with bolts; S5: Move the installation vehicle to the installation area; S6: Loosen the resistance bolt of the gear set, rotate the rocker, and slowly lay the insulating board flat. When the inclination angle of the insulating board is too large, tighten the resistance bolt and continue to slowly rotate the rocker; S7: After the insulating board reaches the horizontal state, adjust the installation position of the insulating board and remove the bolts between the fixed frame and the angle adjustment frame; S8: Slowly rock the rocker to slowly lower the insulating board and the fixed frame until the positioning is completed; S9: Disassemble the fixed frame, retract each component of the installation vehicle, and install the next insulating board.

10. According to the method for use described in claim 9, characterized in that, when there are already installed insulating boards on one side or both sides of the installation area, step S5 further includes the following steps: Move the installation vehicle to near the installation area, and support the already installed insulating boards with the movable legs on one side or both sides; Loosen the fixing bolts of the movable legs supporting the insulating boards, push the installation vehicle forward, and the movable legs move backward relative to the installation vehicle under the obstruction of the already installed insulating boards until the bottom surface of the screw strut is directly above the already installed insulating board, and then lower the screw strut so that its bottom surface supports on the upper surface of the already installed insulating board; The adjustment of the installation position of the insulating board in step S7 specifically includes: Push the installation vehicle forward. At this time, the movable legs move further backward relative to the installation vehicle under the obstruction of the already installed insulating boards, and the screw strut follows on the already installed insulating board until the insulating board is adjusted to the installation position.

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