A fixing device for construction of a thermal insulation layer of a steel structure roof

Abstract

The application relates to a fixing device for steel structure roof insulation layer construction, which comprises an insulation layer body, a sleeve frame arranged on the front surface and the left side surface of the insulation layer body, an insertion strip arranged on the right side surface and the back surface of the insulation layer body, a guide part arranged on the edge of the opening of the inner wall of the two ends of the sleeve frame, and a clamping fixing structure arranged on the insertion strip and the sleeve frame for fixing adjacent insulation layer bodies. When the insulation layer bodies are fixed and installed, the insertion strip on the insulation layer body is inserted into the sleeve frame on the adjacent insulation layer body, the clamping frame is directly pushed into the first clamping groove under the elastic force of the first spring, the fixed and installed work of the insulation layer bodies can be realized, the operation is more labor-saving and convenient, and the fixed and installed work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a fixing device for the construction of a steel structure roof insulation layer. Background Technology

[0002] After the steel structure roof is built, it needs to be insulated. An insulation layer is installed on the steel structure roof for insulation. The existing insulation layer structure generally consists of a first side block and a second side block connected to the left and right sides of the insulation board body, respectively. The first side block has a first slot, and the second side block has a locking block. When laying and installing two horizontally adjacent insulation boards, the locking block on the second side block is inserted into the first slot on the first side block of the adjacent first insulation board to reduce leakage. In addition, a second slot is opened on the top of the insulation board body, and a second locking block is set on the bottom of the insulation board body. When installing two vertically adjacent insulation boards, the second locking block is inserted into the second slot on the adjacent insulation board body to ensure the stability between the two adjacent insulation boards.

[0003] However, when splicing the insulation board bodies vertically, it is necessary to fit the second slot on the lower insulation board body onto the second slot on the lower side of the upper insulation board body, and insert the first slot on the second side block of the lower insulation board body into the first slot on the first side block of the left side of the insulation board body. Since the first slot is pressed tightly into the first slot to reduce leakage, when the second slot on the insulation board body is moved to fit onto the second slot on the adjacent insulation board body, a large static friction will be generated between the first slot and the groove wall of the first slot. This makes it more difficult to move the insulation board body and reduces the efficiency of fixing and installing the insulation board bodies. Therefore, there is room for improvement. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a fixing device for the construction of a steel structure roof insulation layer.

[0005] The present invention provides a fixing device for the construction of steel structure roof insulation layer, which adopts the following technical solution:

[0006] A fixing device for the construction of a steel structure roof insulation layer includes an insulation layer body. A frame is provided on the front and left side of the insulation layer body, and inserts are provided on the right and rear sides of the insulation layer body. Guide portions are provided on the inner walls of both ends of the frame near the opening edges. The inserts and frame are provided with a locking structure for fixing adjacent insulation layer bodies. A frame strip is connected to the edge of one side of the insulation layer body, and a slot is opened on the edge of the side of the insulation layer body opposite to the frame strip. The locking structure includes a first slot, a slot frame, and a first spring. The first slot is located at the upper middle of the inserts. The slot frame passes through the upper part of the frame. Two first springs are connected between the lower inner wall of the slot frame and the upper inner wall of the frame. A shaft is connected between the inner walls of both ends of the slot frame, and a roller is sleeved on the shaft.

[0007] Preferably, the locking and fixing structure includes a second slot, a locking block, and a rotating rod. The second slot is located in the middle of the side of the insert away from the main body of the insulation layer. The locking block is located in the middle of the sleeve frame, and the rotating rod is connected to the upper edge of the locking block.

[0008] Preferably, the top end of the rotating rod extends through the top of the sleeve frame, and a U-shaped frame is provided on the top end of the rotating rod, with a tensioning structure provided inside the U-shaped frame.

[0009] Preferably, a limiting groove is provided at the lower middle of both sides of the U-shaped frame, and a limiting block is connected to the upper part of the sleeve at the two bottom ends of the U-shaped frame, with the limiting groove sleeved on the limiting block.

[0010] Preferably, the tensioning structure includes a plug rod, a first I-shaped sleeve, and a second spring. The plug rod is connected to the middle of the lower inner wall of the U-shaped frame. The bottom end of the plug rod is inserted into a hole opened at the top of the rotating rod. The rotating rod is fitted with the first I-shaped sleeve, which is movably fitted onto the opening on the frame. The plug rod is fitted with the second spring, and the two ends of the second spring are respectively connected to the U-shaped frame and the first I-shaped sleeve.

[0011] Preferably, a pull block is connected to the middle of the upper part of the U-shaped frame, and a groove is provided in the middle of both sides of the pull block.

[0012] Preferably, storage slots are provided on all four sides of the insulation layer body, and the inserts and frames are movably disposed in the storage slots.

[0013] Preferably, an inner groove is formed in the middle of the main body of the insulation layer, and four horizontal grooves are formed on the side wall of the inner groove at equal angles. One end of each horizontal groove is connected to a storage groove, and a fixing block is connected between the two side walls of the horizontal groove. A threaded rod is rotatably passed through the fixing block, and a threaded cylinder is fitted on one end of each threaded rod. One end of each of the four threaded cylinders is connected to the insert and the frame, respectively.

[0014] Preferably, a gear is fitted on the other end of the threaded rod that is inserted into the inner groove, a rotating block is rotatably provided in the middle of the lower groove wall of the inner groove, a ring is provided on the periphery of the rotating block, the ring and the rotating block are connected by a connecting rod, and teeth are provided on the lower part of the ring to mesh with the gear.

[0015] Preferably, a vertical rod is connected to the top of the rotating block, and a rotating strip is connected to the top of the vertical rod extending out of the insulation layer body. A second I-shaped sleeve is fitted onto the vertical rod, and the second I-shaped sleeve is fitted onto the opening on the insulation layer body. A third spring is connected between the second I-shaped sleeve and the rotating strip. The rotating strip is fitted onto a limiting strip, and four limiting strips are evenly distributed around the circumference of the vertical rod on the insulation layer body. A through groove is opened in the middle of both sides of the rotating strip.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] This invention features sleeve frames attached to the front and left sides of the insulation layer body, and insert strips on the right and rear sides of the insulation layer body. Each insert strip has a first slot in its center. A retaining frame passes through the top of the sleeve frame, and a first spring connects the lower inner wall of the retaining frame to the upper inner wall of the sleeve frame. When fixing the insulation layer bodies together, simply insert the insert strips from the insulation layer body into the sleeve frames of adjacent insulation layer bodies, and then, under the elastic force of the first spring, directly push the retaining frame into the first slot. This achieves the secure installation between the insulation layer bodies. The installation process is more labor-saving and convenient, improving the efficiency of fixed installation. A shaft connects the two ends of the frame, with a roller mounted on the shaft. When the insert is inserted into the frame, the spring force automatically moves the frame into the corresponding slot for fixation, making it more convenient to use. Furthermore, the rotation of the roller on the shaft reduces static friction between the roller and the insert, making insertion easier and simplifying the installation process. Guide sections are provided on the inner walls of both ends of the frame, allowing the insert to be smoothly inserted.

[0018] This invention features a second slot located in the middle of the side of the insert away from the insulation layer body. A locking block is connected to the bottom end of a rotating rod passing through a first I-shaped sleeve fitted into the middle opening of the upper frame. A U-shaped frame is provided at the top of the rotating rod extending beyond the first I-shaped sleeve. After the insert is fully inserted into the frame, simply rotating the locking block at the bottom of the rotating rod using the U-shaped frame moves the block into the second slot on the insert, thus achieving a secure installation between the insulation layer bodies. This operation is labor-saving and convenient. The bottom end of the insert connected to the middle of the lower inner wall of the U-shaped frame is inserted into a hole at the top of the rotating rod. Furthermore, a second spring connects the U-shaped frame to the first I-shaped frame. Limiting blocks are connected to both bottom ends of the U-shaped frame on the sleeve frame. Limiting grooves that fit onto the limiting blocks are opened at both bottom ends of the U-shaped frame. After the locking block is rotated into the second locking groove, the limiting groove at the bottom end of the U-shaped frame can be pulled onto the limiting block under the elastic force of the second spring, thus limiting the rotating block and making the installation between the insulation layer main body more secure. Grooves are opened on both sides of the pull block connected in the middle of the U-shaped frame, so that the U-shaped frame can be easily pulled or the locking block can be rotated using the pull block.

[0019] The insulation layer has storage slots on its four sides for inserting strips and sleeves. An inner groove is located in the center of the insulation layer, and a horizontal groove connecting the four storage slots is formed on the side wall of the inner groove. A rotating block rotatably mounted in the middle of the lower wall of the inner groove is connected to a ring via a connecting rod. A threaded rod passing through the fixed block in the horizontal groove has a gear at one end that meshes with the teeth on the underside of the ring, and a threaded cylinder at the other end. One end of each of the four threaded cylinders is connected to an insert and a sleeve, respectively. A vertical rod protruding from the insulation layer is connected to the top of the rotating block, and a rotating strip is connected to the top of the vertical rod. This allows the insulation layer to be opened when the gaps are loosened. When fixing the locking structure, the rotation of the rotating bar can be used to move the insert and the sleeve frame to the corresponding storage slots outside the main body of the insulation layer. This allows for direct replacement of the main body of the insulation layer that has been damaged after long-term use, without the need to disassemble the main body of the insulation layer near the damaged one, reducing the difficulty of replacement work and maintenance costs. A third spring connects the rotating bar to the second I-shaped sleeve fitted on the vertical rod. The rotating bar is fitted onto the limiting strip on the main body of the insulation layer, and the third spring pulls the rotating bar tight onto the limiting strip, which can limit the insertion or the sleeve frame in the storage slot, ensuring the firmness of the fixing between the main bodies of the insulation layer. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a fixing device for the construction of a steel structure roof insulation layer according to an embodiment of the present invention;

[0021] Figure 2 This is an enlarged view of point A of the fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention;

[0022] Figure 3This is a schematic diagram of the setting of the rotating strip of the fixing device for the construction of the steel structure roof insulation layer in an embodiment of the present invention;

[0023] Figure 4 This is an enlarged view of section B of a fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention;

[0024] Figure 5 This is an enlarged view of point C of the fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention;

[0025] Figure 6 This is an enlarged view of point D of the fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention;

[0026] Figure 7 This is a structural cross-sectional view of a fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention;

[0027] Figure 8 This is an enlarged view of point E of the fixing device for the construction of a steel structure roof insulation layer in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Main body of insulation layer; 101. First slot; 102. Frame; 103. First spring; 2. Insert; 201. Shaft; 202. Roller; 3. Sleeve frame; 301. Second slot; 302. Block; 303. Rotating rod; 304. U-shaped frame; 305. Pull block; 306. Groove; 4. Guide part; 401. Insert; 402. First I-shaped sleeve; 403. Second spring; 5. Slot; 5 01. Limiting block; 502. Limiting groove; 6. Frame strip; 601. Storage groove; 602. Threaded cylinder; 603. Horizontal groove; 604. Inner groove; 701. Fixing block; 702. Threaded rod; 801. Rotating block; 802. Ring; 803. Gear; 804. Connecting rod; 901. Vertical rod; 902. Rotating bar; 1001. Second I-shaped sleeve; 1002. Third spring; 1003. Limiting strip; 1004. Through groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 The present invention will be described in further detail below.

[0030] This invention discloses a fixing device for the construction of a steel structure roof insulation layer. (Refer to...) Figure 1-8A fixing device for the construction of a steel structure roof insulation layer includes an insulation layer body 1. A frame 3 is provided on the front and left side of the insulation layer body 1, and inserts 2 are provided on the right and rear sides of the insulation layer body 1. Guide portions 4 are provided on the inner walls of both ends of the frame 3 near the opening edges, with the two guide portions 4 being inclined surfaces. The inserts 2 and the frame 3 are provided with locking structures for fixing adjacent insulation layer bodies 1. When fixing the insulation layer bodies 1 together, simply insert the inserts 2 on adjacent insulation layer bodies 1 into the corresponding positions of the frame 3, and use the locking structures for fixing. This operation is more convenient and labor-saving, improving the efficiency of the fixing and installation work. A frame strip 6 is connected to the edge of one side of the insulation layer body 1, and a slot 5 is opened on the edge of the side of the insulation layer body 1 opposite to the frame strip 6. When fixing two adjacent insulation layer bodies 1 together, the frame strip 6 can be inserted into the corresponding slot 5. This increases the tightness of the fixation between the main bodies 1 of the insulation layer. The locking and fixing structure includes a first slot 101, a frame 102 and a first spring 103. The first slot 101 is opened in the middle of the upper part of the insert 2. The upper edge of the insert 2 is slightly inclined. The frame 102 moves through the upper part of the sleeve frame 3. Two first springs 103 are connected between the lower inner wall of the frame 102 and the upper inner wall of the sleeve frame 3. After inserting the insert 2 into the sleeve frame 3, the frame 102 is inserted into the first slot 101, which can fix the main bodies 1 of the insulation layer. The operation is simple and convenient, and the work efficiency is improved. A shaft 201 is connected between the inner walls of the two ends of the frame 102. A roller 202 is movably sleeved on the shaft 201. By using the rolling of the roller 202 on the shaft 201, the static friction generated between it and the insert 2 can be reduced, so that the insert 2 can be inserted into the sleeve frame 3 more smoothly to fix the main bodies 1 of the insulation layer.

[0031] In specific operation, when fixing the insulation layer body 1 between the insulation layer bodies 1, insert the insert strip 2 on one of the insulation layer bodies 1 into the sleeve frame 3 on the adjacent insulation layer body 1. During the process of inserting the insert strip 2 into the sleeve frame 3, the insert strip 2 squeezes the roller 202. The roller 202 rotates on the shaft 201 and pushes the clamping frame 102 to move upward on the sleeve frame 3, squeezing the first spring 103. When the insert strip 2 is fully inserted into the sleeve frame 3, under the elastic force of the first spring 103, the roller 202 and the clamping frame 102 are pushed into the first clamping groove 101, thus realizing the fixing work between the insulation layer bodies 1.

[0032] See Figure 3-5The locking and fixing structure includes a second slot 301, a locking block 302, and a rotating rod 303. The second slot 301 is located in the middle of the side of the insert 2 away from the main body of the insulation layer 1. The locking block 302 is located in the middle of the sleeve frame 3. The rotating rod 303 is connected to the upper edge of the locking block 302. When the insert 2 is inserted into the sleeve frame 3, the locking block 302 can be rotated directly using the rotating rod 303 to rotate the locking block 302 into the second slot 301 on the insert 2, thereby fixing the main body of the insulation layer 1. The top of the rotating rod 303 protrudes from the top of the sleeve frame 3. A U-shaped frame 304 is provided at the top of the rotating rod 303. A tensioning structure is provided inside the U-shaped frame 304. The locking block 302 at the bottom of the rotating rod 303 can be rotated directly using the U-shaped frame 304 outside the sleeve 3, making operation more convenient. Limiting grooves 502 are provided in the middle of the lower part of the two sides of the U-shaped frame 304. Limiting blocks 501 are connected to the two bottom ends of the sleeve 3 at the top of the U-shaped frame 304. The limiting grooves 502 are movably fitted on the limiting blocks 501. The tensioning structure includes an insert rod 401, a first I-shaped sleeve 402, and a second spring 403. The insert rod 401... 01 is connected to the middle of the lower inner wall of the U-shaped frame 304. The bottom end of the insertion rod 401 is movably inserted into the insertion hole opened at the top of the rotating rod 303. A first I-shaped sleeve 402 is fixedly fitted on the rotating rod 303. The first I-shaped sleeve 402 is movably fitted onto the opening on the frame 3. A second spring 403 is fitted on the insertion rod 401. The two ends of the second spring 403 are respectively connected to the U-shaped frame 304 and the first I-shaped sleeve 402. After the locking block 302 is rotated into the second locking groove 301, the U-shaped frame can be pulled under the pulling force of the second spring 403. The limiting groove 502 on 304 is fitted onto the limiting block 501 to limit the U-shaped frame 304, thereby limiting the card block 302 that is rotated into the second card slot 301, making the insulation layer body 1 more firmly fixed. A pull block 305 is connected to the middle of the upper part of the U-shaped frame 304. A groove 306 is provided in the middle of both sides of the pull block 305. The groove 306 increases the contact area between the operator and the pull block 305. The pull block 305 makes it easy to pull the U-shaped frame 304 up and down and drive the card block 302 to rotate.

[0033] In specific operation, first insert the insert 2 into the sleeve frame 3, then pull the U-shaped frame 304 upward using the pull block 305 outside the corresponding sleeve frame 3, causing the insert rod 401 to move upward inside the rotating rod 303, stretching the second spring 403. Then, use the pull block 305 to rotate the rotating rod 303, causing the locking block 302 to tighten into the second locking groove 301 on the insert 2. After the locking block 302 is fully inserted into the second locking groove 301, release the pull block 305. Under the pulling force of the second spring 403, pull the limiting groove 502 on the U-shaped frame 304 onto the limiting block 501 for limiting, thereby achieving the fixing work between the main body 1 of the insulation layer.

[0034] See Figure 6-8 The insulation layer body 1 has storage slots 601 on all four sides. The insert 2 and the sleeve 3 are movably installed in the storage slots 601. When a piece of the insulation layer body 1 that is fixed together needs to be replaced due to long-term use, the insert 2 and the sleeve 3 can be moved into the storage slot 601 on the corresponding insulation layer body 1 after the fixing structure is loosened, so as to realize the function of individual disassembly. The corresponding insulation layer body 1 can be replaced without disassembling the nearby insulation layer body 1, which reduces the difficulty of maintenance and reduces maintenance costs. An inner groove 604 is opened in the middle of the insulation layer body 1. Four horizontal grooves 603 are evenly distributed around the side of the inner groove 604. One end of the horizontal groove 603 is connected to A fixing block 701 connects the two side walls of the storage slot 601 and the transverse slot 603. A threaded rod 702 rotatably passes through the fixing block 701. A threaded cylinder 602 is fitted onto one end of each threaded rod 702. Matching threads are provided on the threaded rod 702 and the inner wall of the threaded cylinder 602. One end of each of the four threaded cylinders 602 is connected to the insert 2 and the sleeve 3, respectively. A gear 803 is fixedly fitted onto the other end of the threaded rod 702 that is inserted into the inner slot 604. A rotating block 801 is rotatably provided in the middle of the lower slot wall of the inner slot 604. A ring 802 is provided around the circumference of the rotating block 801. The ring 802 is connected to the rotating block 801 by a connecting rod 804. A meshing mechanism is provided on the bottom of the ring 802 to engage with the gear 803. When the connecting teeth rotate the rotating block 801 in the inner groove 604, the connecting rod 804 drives the ring 802 to rotate, which in turn drives the four threaded rods 702 to rotate on the corresponding fixed blocks 701 through the gear 803. The threaded cylinder 602 is on the threaded rods 702, which drives the insert 2 and the sleeve 3 to move synchronously in the storage groove 601. The top of the rotating block 801 is connected to a vertical rod 901. The vertical rod 901 rotatably protrudes from the top of the insulation layer body 1 and is connected to a rotating rod 902. The rotating block 801 at the bottom of the vertical rod 901 is rotated by the rotating rod 902 outside the insulation layer body 1, which drives the insert 2 and the sleeve 3 to move in the storage groove 601. The operation is simpler and more convenient. The second I-shaped sleeve 1 is fixed on the vertical rod 901. 001, the second I-shaped sleeve 1001 is movably sleeved on the opening of the insulation layer body 1. A third spring 1002 is connected between the second I-shaped sleeve 1001 and the rotating bar 902. The rotating bar 902 is sleeved on the limiting bar 1003. There are four limiting bars 1003 distributed at equal angles around the circumference of the vertical bar 901 on the insulation layer body 1. A through groove 1004 is opened in the middle of both sides of the rotating bar 902. When the insert 2 and the sleeve frame 3 are pushed out in the storage groove 601 to fix the insulation layer body 1, the rotating bar 902 can be pulled onto the corresponding limiting bar 1003 under the pulling force of the third spring 1002 to limit the insert 2 and sleeve frame 3 in the storage groove 601, so that the insulation layer body 1 is fixed more firmly.

[0035] When it is necessary to replace the corresponding insulation layer body 1, firstly, release the fixing and locking structure from fixing the corresponding insulation layer body 1. Then, pull the rotating bar 902 upward to stretch the third spring 1002 and pull the rotating bar 902 out of the limiting bar 1003. Then, use the rotating bar 902 to rotate the rotating block 801 at the bottom of the vertical rod 901. The rotating block 801 rotates in the inner groove 604, which drives the ring 802 to rotate through the connecting rod 804. Through the gear 803, it drives the four threaded rods 702 to rotate simultaneously. The threaded cylinder 602 moves on the threaded rods 702, thereby moving the insert 2 and the sleeve 3 into the corresponding storage groove 601. Finally, disassemble and replace the corresponding insulation layer body 1.

[0036] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A fixing device for the construction of a steel structure roof insulation layer, comprising the insulation layer body (1), characterized in that: The front and left sides of the insulation layer body (1) are provided with a sleeve frame (3), and the right and rear sides of the insulation layer body (1) are provided with inserts (2). The inner walls of both ends of the sleeve frame (3) are provided with guides (4) near the opening. The inserts (2) and the sleeve frame (3) are provided with a snap-fit ​​fixing structure for fixing adjacent insulation layer bodies (1). A frame strip (6) is connected to the edge of one side of the insulation layer body (1), and the edge of the side of the insulation layer body (1) opposite to the frame strip (6) is... A slot (5) is provided. The locking and fixing structure includes a first slot (101), a slot frame (102) and a first spring (103). The first slot (101) is located at the middle of the top of the insert (2). The slot frame (102) passes through the top of the sleeve frame (3). Two first springs (103) are connected between the lower inner wall of the slot frame (102) and the upper inner wall of the sleeve frame (3). A shaft (201) is connected between the inner walls of the two ends of the slot frame (102). A roller (202) is sleeved on the shaft (201).

2. The fixing device for the construction of a steel structure roof insulation layer according to claim 1, characterized in that: The locking and fixing structure includes a second slot (301), a locking block (302), and a rotating rod (303). The second slot (301) is located in the middle of the side of the insert (2) away from the main body of the insulation layer (1). The locking block (302) is located in the middle of the sleeve frame (3). The rotating rod (303) is connected to the upper edge of the locking block (302).

3. The fixing device for the construction of a steel structure roof insulation layer according to claim 2, characterized in that: The top end of the rotating rod (303) extends through the top of the sleeve frame (3), and a U-shaped frame (304) is provided on the top end of the rotating rod (303), and a tensioning structure is provided inside the U-shaped frame (304).

4. The fixing device for the construction of a steel structure roof insulation layer according to claim 3, characterized in that: A limiting groove (502) is provided at the lower middle of both sides of the U-shaped frame (304). A limiting block (501) is connected to the upper part of the sleeve frame (3) at the two bottom ends of the U-shaped frame (304). The limiting groove (502) is sleeved on the limiting block (501).

5. A fixing device for the construction of a steel structure roof insulation layer according to claim 3, characterized in that: The tensioning structure includes a plug rod (401), a first I-shaped sleeve (402), and a second spring (403). The plug rod (401) is connected to the middle of the lower inner wall of the U-shaped frame (304). The bottom end of the plug rod (401) is inserted into the insertion hole opened at the top of the rotating rod (303). The rotating rod (303) is fitted with the first I-shaped sleeve (402), which is movably fitted onto the opening on the frame (3). The plug rod (401) is fitted with the second spring (403), and the two ends of the second spring (403) are respectively connected to the U-shaped frame (304) and the first I-shaped sleeve (402).

6. The fixing device for the construction of a steel structure roof insulation layer according to claim 5, characterized in that: A pull block (305) is connected to the middle of the upper part of the U-shaped frame (304), and a groove (306) is provided in the middle of both sides of the pull block (305).

7. The fixing device for the construction of a steel structure roof insulation layer according to claim 1, characterized in that: The insulation layer body (1) has storage slots (601) on all four sides, and the insert (2) and the frame (3) are movably disposed in the storage slots (601).

8. A fixing device for the construction of a steel structure roof insulation layer according to claim 7, characterized in that: An inner groove (604) is provided in the middle of the main body (1) of the insulation layer. Four horizontal grooves (603) are provided on the side wall of the inner groove (604) with equal circumference. One end of the horizontal groove (603) is connected to the storage groove (601). A fixing block (701) is connected between the two side walls of the horizontal groove (603). A threaded rod (702) is rotatably passed through the fixing block (701). A threaded cylinder (602) is fitted on one end of each threaded rod (702). One end of each of the four threaded cylinders (602) is connected to the insert (2) and the frame (3) respectively.

9. A fixing device for the construction of a steel structure roof insulation layer according to claim 8, characterized in that: The threaded rod (702) is inserted into the inner groove (604) and a gear (803) is fitted on the other end. A rotating block (801) is rotatably provided in the middle of the lower groove wall of the inner groove (604). A ring (802) is provided on the periphery of the rotating block (801). The ring (802) and the rotating block (801) are connected by a connecting rod (804). The ring (802) has teeth on its lower side that mesh with the gear (803).

10. A fixing device for the construction of a steel structure roof insulation layer according to claim 9, characterized in that: The top of the rotating block (801) is connected to a vertical rod (901). The vertical rod (901) extends out of the top of the insulation layer body (1) and is connected to a rotating strip (902). A second I-shaped sleeve (1001) is fitted on the vertical rod (901). The second I-shaped sleeve (1001) is fitted on the opening on the insulation layer body (1). A third spring (1002) is connected between the second I-shaped sleeve (1001) and the rotating strip (902). The rotating strip (902) is fitted on a limiting strip (1003). The limiting strip (1003) has four strips distributed at equal angles around the circumference of the vertical rod (901) on the insulation layer body (1). A through groove (1004) is opened in the middle of both sides of the rotating strip (902).

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