Dampproofing facility for foundation pit construction and operation method thereof

Abstract

The application discloses a foundation pit construction moisture-proof facility and an operating method thereof, relates to the technical field of foundation pit moisture-proof, and comprises a bottom plate, a through hole groove is formed in the left side of the bottom plate, a compression roller is rotationally connected to the right side of the through hole groove, a movable block is arranged on the outer surface of a support frame, a first fixed block is fixedly connected to the top end of the movable block, a second flame spraying head is arranged in the middle of the first fixed block, a second fixed block is fixedly connected to the top end of a supporting rod, and a third flame spraying head is arranged in the second fixed block. The driving assembly works, and the movable block moves back and forth along the support frame under the action of the connecting hose, so that the second flame spraying head and the third flame spraying head move back and forth, the asphalt coiled material is heated, the third flame spraying head is preheated first, the asphalt on the asphalt coiled material is melted by the second flame spraying head, the melted asphalt on the asphalt coiled material adheres to the ground, the compression roller compacts the asphalt coiled material attached to the ground, the asphalt coiled material is conveniently laid, and the working efficiency is high.

Description

Moisture-proof facilities and operating methods for foundation pit construction Technical Field

[0001] This invention relates to the field of foundation pit moisture-proofing technology, and in particular to foundation pit construction moisture-proofing facilities and their operation methods. Background Technology

[0002] A temporary pit excavated for the foundation of a building is called a foundation pit. Foundation pits are temporary works, and their purpose is to provide a space so that the foundation masonry work can be carried out in the position specified in the design. After the foundation pit is excavated, it needs to be moisture-proofed, and asphalt rolls are usually laid using the hot melt method.

[0003] The existing asphalt roll laying method has the following shortcomings: 1. Asphalt roll laying usually involves manual hand-held flame gun to heat the bottom of the asphalt roll, laying it section by section. After one section of asphalt roll is bonded to the ground, the asphalt roll is pushed forward and then heated and bonded again, which is inefficient; 2. When splicing asphalt rolls, it is necessary to manually align the two sections of asphalt roll, which is a relatively troublesome process. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of manual laying and low work efficiency in the existing technology, and to propose a moisture-proof facility for foundation pit construction.

[0005] To address the problems of low efficiency and manual laying in existing technologies, this invention adopts the following technical solution:

[0006] A moisture-proof facility for foundation pit construction includes a base plate. A through-hole groove is formed on the left side of the base plate, and a pressure roller is rotatably connected to the right side of the through-hole groove. A placement assembly is located at the top center of the base plate, and asphalt roll material is placed on top of the placement assembly, passing through the pressure roller. A support frame is fixedly connected to the top of the through-hole groove, and a movable block is fitted onto the outer surface of the support frame. A first fixing block is fixedly connected to the top of the movable block, and a second flame head is located in the middle of the first fixing block, facing the bottom of the pressure roller. A support rod is fixedly connected to the top of the first fixing block, and a second fixing block is fixedly connected to the top of the support rod. A third flame head is located inside the second fixing block. A drive assembly is located on the left side of the through-hole groove, and a third fixing block is located on the outer surface of the drive assembly. A connecting hose is fixedly connected inside the third fixing block, and the connecting hose is connected to the second and third flame heads. A liquefied gas tank is fixedly connected to the top of the base plate, and the liquefied gas tank is connected to the connecting hose.

[0007] Preferably, the drive assembly includes three pulleys, which are rotatably connected to the left side of the through-hole groove. The outer surfaces of the three pulleys are provided with belts, the upper end of which is fixedly connected to the third fixing block. The base plate is equipped with a motor, and the output end of the motor is fixedly connected to the front pulley.

[0008] Preferably, the placement assembly includes a first mounting frame, which is fixedly connected to the top of the base plate. The top of the first mounting frame is provided with a mounting shaft, and the asphalt roll is sleeved on the outside of the mounting shaft.

[0009] Preferably, mounting plates are fixedly connected to the front and rear sides of the top of the first mounting frame, and support rollers are rotatably connected between the two mounting plates. Five support rollers are provided and arranged in a circular pattern.

[0010] Preferably, a fixing sleeve is fixedly connected to the rear end of the first mounting bracket, and a pin is fitted inside the fixing sleeve, with the bottom of the pin penetrating the mounting shaft.

[0011] Preferably, a second mounting bracket is fixedly connected to the top of the base plate, and a first clamping roller and a second clamping roller are provided on the top of the second mounting bracket. The first clamping roller and the second clamping roller are respectively provided on the left and right sides of the asphalt roll material, and the third flame head faces the top of the first clamping roller. A support plate is fixedly connected to the top of the second mounting bracket, and the support plate is provided on the right side of the second clamping roller.

[0012] Preferably, the second mounting frame has mounting grooves on both the front and rear sides, an arc-shaped plate is fixedly connected inside the mounting groove, and the arc-shaped plate is elastic. A support block is fixedly connected to the top of the arc-shaped plate. Connecting blocks are rotatably connected to both the front and rear ends of the second clamping roller, and the connecting blocks are located at the top of the support blocks.

[0013] Preferably, mounting holes are provided on both the front and rear sides of the base plate, and the two mounting holes are flush with the front and rear sides of the through-hole groove, respectively. A first flame head is fixedly connected inside the mounting hole. The first flame head is connected to the liquefied gas tank. An elastic pressure plate is rotatably connected inside the mounting hole. A connecting groove is provided at both the front and rear ends of the elastic pressure plate. A slider is provided inside the connecting groove and is slidably connected to the inside of the mounting hole. A threaded rod is threaded inside the slider and extends to the right side of the base plate. The threaded rod is rotatably connected inside the base plate.

[0014] Preferably, rollers are provided at all four corners of the base plate, and a handrail is fixedly connected to the top right side of the base plate.

[0015] This invention also proposes an operation method for moisture-proof facilities during foundation pit construction, including the following steps:

[0016] Step 1: Install the asphalt roll. The asphalt roll is placed on the support roller. The mounting shaft is inserted from one end of the first mounting frame, passes through the asphalt roll, and then comes out from the other side of the first mounting frame. The pin is inserted into the inside of the fixing sleeve and then into the inside of the mounting shaft to fix the mounting shaft. Rotate the threaded rod to make the slider move along the mounting hole. The slider moves in the connecting groove, which in turn makes the elastic pressure plate rotate, changing the length of the elastic pressure plate in the vertical direction, and thus changing the pressure of the elastic pressure plate on the ground.

[0017] Step 2: Pull out the asphalt roll and place it on the support plate. The asphalt roll passes through the first clamping roller and the second clamping roller, which fix the asphalt roll in place. Then, the bottom end of the asphalt roll contacts the ground. The liquefied gas tank supplies fuel to the second and third burner heads through the connecting hose. The second burner head sprays fire at the asphalt roll that is in contact with the ground, and the third burner head sprays fire at the asphalt roll that has passed through the first clamping roller.

[0018] Step 3: The motor rotates forward a few times and then reverses a few times, repeating this cycle to make the pulley rotate forward or reverse, which in turn makes the third fixed block on the belt reciprocate back and forth. Under the action of the connecting hose, the movable block reciprocates along the support frame in the back and forth direction, which in turn makes the second and third flame heads heat the asphalt roll material. The third flame head preheats first, and the second flame head melts the asphalt on the asphalt roll material.

[0019] Step four: The staff member holds the handrail and pushes the base plate to make the rollers rotate, which in turn makes the whole equipment move. The molten asphalt on the asphalt roll adheres to the ground. The pressure roller compacts the asphalt roll that is attached to the ground. As the pressure roller rotates, it pulls the asphalt roll, and the asphalt roll on the first mounting frame is automatically discharged until the asphalt roll on the first mounting frame is completely discharged.

[0020] Step 5: As the equipment moves, the liquefied gas tank supplies fuel to the first burner head. The first burner head melts the asphalt on both sides of the asphalt roll again. Then, as the elastic pressure plate sweeps over the side of the asphalt roll, the side of the asphalt roll is completely adhered to the ground.

[0021] Step Six: When a roll of asphalt material is about to be used up, the remaining asphalt material is left above the first clamping roller and placed on it. Replace it with a new roll of asphalt material according to the steps in the previous step. Insert the new roll of asphalt material between the first and second clamping rollers along the support plate. During this process, the arc plate deforms under the force, and the connecting block moves down along the installation groove, changing the distance between the first and second clamping rollers. Then, increase the firepower of the third flame head to melt the asphalt on the new roll of asphalt material. As the asphalt material is laid, the two rolls of asphalt material are joined together under the pressure of the first and second clamping rollers.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In this invention, the pulley drives the belt to move, and under the action of the connecting hose, the movable block moves back and forth along the support frame, thereby causing the second and third flame heads to move back and forth to heat the asphalt roll. The third flame head preheats first, and the second flame head melts the asphalt on the asphalt roll. The melted asphalt on the asphalt roll adheres to the ground, and the pressure roller compacts the asphalt roll adhered to the ground. As the pressure roller rotates, it pulls the asphalt roll, and the asphalt roll on the first mounting frame is automatically released. Laying the asphalt roll is convenient and the work efficiency is high.

[0024] 2. In this invention, the new asphalt roll is inserted between the first clamping roller and the second clamping roller along the support plate, and then the firepower of the third flame head is increased to melt the asphalt on the new asphalt roll. As the asphalt roll is laid, the two asphalt rolls are bonded together under the pressure of the first clamping roller and the second clamping roller, and the connection is completed. The connection of the asphalt rolls is convenient.

[0025] In summary, this invention utilizes a pulley to drive a belt, which, through the connecting hose, causes the second and third flame heads to move back and forth, heating the asphalt roll. The third flame head preheats the roll, while the second flame head melts the asphalt on the roll. The molten asphalt adheres to the ground, and the pressure roller compacts the roll. As the pressure roller rotates, it pulls the roll, automatically releasing the asphalt from the first mounting frame. This method facilitates asphalt roll laying and increases work efficiency. New asphalt rolls are inserted between the first and second clamping rollers along the support plate. The increased heat from the third flame head melts the asphalt on the new roll. As the rolls are laid, the two rolls adhere to each other under the pressure of the first and second clamping rollers, completing the connection. This method of asphalt roll connection is convenient. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 is a perspective view of the present invention;

[0028] Figure 2 is an enlarged view of point A in Figure 1 of the present invention;

[0029] Figure 3 is a schematic diagram of the support frame of the present invention;

[0030] Figure 4 is an enlarged view of section B in Figure 3 of the present invention;

[0031] Figure 5 is a schematic diagram of the first mounting bracket of the present invention;

[0032] Figure 6 is a schematic diagram of the second mounting bracket of the present invention;

[0033] Figure 7 is a schematic diagram of the elastic pressure plate of the present invention;

[0034] Figure 8 is a diagram of the operation method of the present invention.

[0035] The components in the diagram are numbered as follows: 1. Base plate; 2. Roller; 3. Handrail; 4. Liquefied gas tank; 5. First mounting bracket; 6. Mounting shaft; 7. Asphalt roll; 8. Second mounting bracket; 9. Through-hole groove; 10. Pressure roller; 11. Mounting hole; 12. Elastic pressure plate; 13. First flame head; 14. Support frame; 15. Threaded rod; 16. Movable block; 17. First fixed block; 18. Second flame head; 19. Support rod; 20. Second fixed block; 21. Third flame head; 22. Pulley; 23. Belt; 24. Third fixed block; 25. Connecting hose; 26. Mounting plate; 27. Support roller; 28. Fixing sleeve; 29. ​​Pin; 30. First clamping roller; 31. Second clamping roller; 32. Connecting block; 33. Mounting groove; 34. Arc plate; 35. Support block; 36. Support plate; 37. Connecting groove; 38. Slider. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Example 1: This example provides a moisture-proof facility for foundation pit construction, as shown in Figures 1-7. Specifically, it includes a base plate 1, with a through-hole groove 9 on the left side of the base plate 1. A pressure roller 10 is rotatably connected to the right side of the through-hole groove 9. A stepper motor is installed inside the base plate 1, and the output end of the stepper motor is fixedly connected to the pressure roller 10. A placement assembly is located at the top center of the base plate 1, and an asphalt roll 7 is placed on top of the placement assembly, passing through the pressure roller 10. A support frame 14 is fixedly connected to the top of the through-hole groove 9. A movable block 16 is fitted on the outer surface of the support frame 14. A first fixing block 17 is fixedly connected to the top of the movable block 16, and a second flame head 18 is located in the middle of the first fixing block 17. The second flame head 18 faces the bottom of the pressure roller 10. The top of the first fixing block 17 is fixedly connected to the support rod 19. The top of the support rod 19 is fixedly connected to the second fixing block 20. The second fixing block 20 is provided with the third flame head 21 inside. The left side of the through hole groove 9 is provided with the drive assembly. The outer surface of the drive assembly is provided with the third fixing block 24. The inside of the third fixing block 24 is fixedly connected to the connecting hose 25, and the connecting hose 25 is connected to the second flame head 18 and the third flame head 21. The top of the base plate 1 is fixedly connected to the liquefied gas tank 4, and the liquefied gas tank 4 is connected to the connecting hose 25. Rollers 2 are provided at the four corners of the base plate 1. The top right side of the base plate 1 is fixedly connected to the handrail 3.

[0038] Asphalt roll 7 is installed on the placement component, with the bottom end of asphalt roll 7 in contact with the ground and located at the bottom end of pressure roller 10. The drive component drives the third fixed block 24 to move, and under the action of the connecting hose 25, the movable block 16 moves along the support frame 14, thereby causing the second flame head 18 and the third flame head 21 to move and heat the asphalt roll 7. The third flame head 21 preheats first, and the second flame head 18 melts the asphalt on the asphalt roll 7. The worker holds the handrail 3 and pushes the base plate 1, causing the roller 2 to rotate, thereby moving the entire equipment. The melted asphalt on the asphalt roll 7 adheres to the ground, and the pressure roller 10 compacts the asphalt roll 7 that is attached to the ground. As the pressure roller 10 rotates, it pulls the asphalt roll 7, and the asphalt roll 7 on the first mounting frame 5 is automatically discharged until all the asphalt roll 7 on the first mounting frame 5 is discharged.

[0039] In the specific implementation process, as shown in Figures 3 and 4, the drive assembly includes three pulleys 22, which are rotatably connected to the left side of the through-hole groove 9. The outer surface of the three pulleys 22 is provided with a belt 23, and the upper end of the belt 23 is fixedly connected to the third fixed block 24. The base plate 1 is equipped with a motor, and the output end of the motor is fixedly connected to the front pulley 22. The motor rotates forward a few times and then reverses a few times, repeating the cycle to make the pulleys 22 rotate forward or reverse, thereby causing the third fixed block 24 on the belt 23 to move back and forth.

[0040] In the specific implementation process, as shown in Figures 1 and 5, the placement component includes a first mounting frame 5, which is fixedly connected to the top of the base plate 1. The top of the first mounting frame 5 is provided with a mounting shaft 6, and the asphalt roll 7 is sleeved on the outside of the mounting shaft 6. Mounting plates 26 are fixedly connected to the front and rear sides of the top of the first mounting frame 5. Support rollers 27 are rotatably connected between the two mounting plates 26, and there are five support rollers 27 arranged in a circle. A fixing sleeve 28 is fixedly connected to the rear end of the first mounting frame 5. A pin 29 is sleeved inside the fixing sleeve 28, and the bottom of the pin 29 passes through the mounting shaft 6. The asphalt roll 7 is placed on the support roller 27. The mounting shaft 6 is inserted from one end of the first mounting frame 5, passes through the asphalt roll 7, and then comes out from the other side of the first mounting frame 5. The pin 29 is inserted into the inside of the fixing sleeve 28 and then into the inside of the mounting shaft 6 to fix the mounting shaft 6.

[0041] In the specific implementation process, as shown in Figures 3 and 7, mounting holes 11 are provided on both the front and rear sides of the base plate 1. The two mounting holes 11 are flush with the front and rear sides of the through-hole groove 9, respectively. A first flame head 13 is fixedly connected inside the mounting hole 11. The first flame head 13 is connected to the liquefied gas tank 4. An elastic pressure plate 12 is rotatably connected inside the mounting hole 11. Three elastic pressure plates 12 are provided inside each mounting hole 11. The thickness of the three elastic pressure plates 12 decreases from left to right. By changing the thickness of the elastic pressure plate 12, the elasticity can be changed. The elastic coefficient of the elastic pressure plate 12 is adjusted to change the pressure of the elastic pressure plate 12 on the asphalt roll 7, so as to prevent the asphalt roll 7 from shifting before solidification due to excessive pressure after pressing. The front and rear ends of the elastic pressure plate 12 are provided with connecting grooves 37. The connecting grooves 37 are provided with sliders 38, and the sliders 38 are slidably connected to the inside of the mounting holes 11. The sliders 38 are threadedly connected to the threaded rods 15, and the threaded rods 15 penetrate to the right side of the base plate 1. The threaded rods 15 are rotatably connected to the inside of the base plate 1.

[0042] Rotating the threaded rod 15 causes the slider 38 to move along the mounting hole 11. The slider 38 moves within the connecting groove 37, thereby causing the elastic pressure plate 12 to rotate, changing the length of the elastic pressure plate 12 in the vertical direction, and thus changing the pressure of the elastic pressure plate 12 on the ground. As the equipment moves, the liquefied gas tank 4 provides fuel to the first flame head 13. The first flame head 13 melts the asphalt on both sides of the asphalt roll 7 again. Then, as the elastic pressure plate 12 sweeps over the side of the asphalt roll 7, the side of the asphalt roll 7 is completely adhered to the ground.

[0043] Example 2: In Example 1, there was still a problem with the inconvenience of splicing asphalt rolls. Therefore, based on Example 1, this example also includes:

[0044] In the specific implementation process, as shown in Figures 1 and 6, a second mounting frame 8 is fixedly connected to the top of the base plate 1. A first clamping roller 30 and a second clamping roller 31 are provided on the top of the second mounting frame 8. The first clamping roller 30 and the second clamping roller 31 are respectively located on the left and right sides of the asphalt roll 7. The third flame head 21 faces the top of the first clamping roller 30. A support plate 36 is fixedly connected to the top of the second mounting frame 8. The support plate 36 is located on the right side of the second clamping roller 31. Mounting grooves 33 are provided on both the front and rear sides of the second mounting frame 8. An arc plate 34 is fixedly connected inside the mounting groove 33. The arc plate 34 is elastic. A support block 35 is fixedly connected to the top of the arc plate 34. A connecting block 32 is rotatably connected to both the front and rear ends of the second clamping roller 31. The connecting block 32 is located on the top of the support block 35.

[0045] When a roll of asphalt material 7 is about to be used up, the remaining portion of asphalt material 7 remains above the first clamping roller 30 and rests on the first clamping roller 30. Following the method in step one, a new roll of asphalt material 7 is replaced, and the new roll of asphalt material 7 is inserted between the first clamping roller 30 and the second clamping roller 31 along the support plate 36. During this process, the arc plate 34 deforms under force, and the connecting block 32 moves down along the mounting groove 33, changing the distance between the first clamping roller 30 and the second clamping roller 31. Then, the firepower of the third flame head 21 is increased, causing the asphalt on the new roll of asphalt material 7 to melt. As the asphalt material 7 is laid, the two rolls of asphalt material 7 are joined together under the pressure of the first clamping roller 30 and the second clamping roller 31.

[0046] Example 3: Referring to Figure 8, the working principle and operation method of the present invention are as follows:

[0047] Step 1: Install the asphalt roll 7. The asphalt roll 7 is placed on the support roller 27. The mounting shaft 6 is inserted from one end of the first mounting frame 5, passes through the asphalt roll 7, and then comes out from the other side of the first mounting frame 5. The pin 29 is inserted into the inside of the fixing sleeve 28 and then into the inside of the mounting shaft 6 to fix the mounting shaft 6. Rotate the threaded rod 15 to make the slider 38 move along the mounting hole 11. The slider 38 moves in the connecting groove 37, which in turn makes the elastic pressure plate 12 rotate, changing the length of the elastic pressure plate 12 in the vertical direction, and thus changing the pressure of the elastic pressure plate 12 on the ground.

[0048] Step 2: Pull out the asphalt roll 7. The asphalt roll 7 is placed on the support plate 36. The asphalt roll 7 passes through the first clamping roller 30 and the second clamping roller 31. The first clamping roller 30 and the second clamping roller 31 fix the asphalt roll 7. Then, the bottom end of the asphalt roll 7 contacts the ground. The liquefied gas tank 4 supplies fuel to the second burner head 18 and the third burner head 21 through the connecting hose 25. The second burner head 18 sprays fire towards the asphalt roll 7 in contact with the ground, and the third burner head 21 sprays fire towards the asphalt roll 7 that has passed through the first clamping roller 30.

[0049] Step 3: The motor rotates forward a few times and then reverses a few times, repeating this cycle to make the pulley 22 rotate forward or reverse, which in turn causes the third fixed block 24 on the belt 23 to move back and forth. Under the action of the connecting hose 25, the movable block 16 moves back and forth along the support frame 14, which in turn causes the second flame head 18 and the third flame head 21 to heat the asphalt roll 7. The third flame head 21 preheats first, and the second flame head 18 melts the asphalt on the asphalt roll 7.

[0050] Step 4: The worker holds the handrail 3 and pushes the base plate 1, causing the roller 2 to rotate, which in turn moves the entire equipment. The molten asphalt on the asphalt roll 7 adheres to the ground. The pressure roller 10 compacts the asphalt roll 7 that is attached to the ground. As the pressure roller 10 rotates, it pulls the asphalt roll 7, and the asphalt roll 7 on the first mounting frame 5 is automatically discharged until all the asphalt roll 7 on the first mounting frame 5 is discharged.

[0051] Step 5: As the equipment moves, the liquefied gas tank 4 supplies fuel to the first burner head 13. The first burner head 13 melts the asphalt on both sides of the asphalt roll 7 again. Then, as the elastic pressure plate 12 sweeps over the side of the asphalt roll 7, the side of the asphalt roll 7 is completely in contact with the ground.

[0052] Step Six: When a roll of asphalt material 7 is about to be used up, the remaining portion of asphalt material 7 remains above the first clamping roller 30 and rests on the first clamping roller 30. Replace it with a new roll of asphalt material 7 as in Step One, and insert the new roll of asphalt material 7 between the first clamping roller 30 and the second clamping roller 31 along the support plate 36. During this process, the arc plate 34 deforms under force, and the connecting block 32 moves down along the mounting groove 33, changing the distance between the first clamping roller 30 and the second clamping roller 31. Then, increase the firepower of the third flame head 21 to melt the asphalt on the new roll of asphalt material 7. As the asphalt material 7 is laid, the two rolls of asphalt material 7 are joined together under the pressure of the first clamping roller 30 and the second clamping roller 31.

[0053] In this invention, pulley 22 drives belt 23 to move, and the connecting hose 25 causes the second flame head 18 and the third flame head 21 to move back and forth to heat the asphalt roll 7. The third flame head 21 preheats first, and the second flame head 18 melts the asphalt on the asphalt roll 7. The melted asphalt on the asphalt roll 7 adheres to the ground. The pressure roller 10 compacts the asphalt roll 7 that is attached to the ground. As the pressure roller 10 rotates, it pulls the asphalt roll 7, and the asphalt roll 7 on the first mounting frame 5 is automatically released. The asphalt roll 7 is easy to lay and the work efficiency is high.

[0054] The new asphalt roll 7 is inserted between the first clamping roller 30 and the second clamping roller 31 along the support plate 36. Then, the firepower of the third flame head 21 is increased to melt the asphalt on the new asphalt roll 7. As the asphalt roll 7 is laid, the two asphalt rolls 7 are bonded together under the pressure of the first clamping roller 30 and the second clamping roller 31, and the connection is completed. The connection of the asphalt roll 7 is convenient.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A moisture-proof facility for foundation pit construction, including a base slab (1), characterized in that: A through-hole groove (9) is provided on the left side of the base plate (1), and a pressure roller (10) is rotatably connected to the right side of the through-hole groove (9). A placement assembly is provided at the top center of the base plate (1), and an asphalt roll (7) is placed on the top of the placement assembly, with the asphalt roll (7) passing through the pressure roller (10). A support frame (14) is fixedly connected to the top of the through-hole groove (9), and a movable block (16) is fitted on the outer surface of the support frame (14). A first fixing block (17) is fixedly connected to the top of the movable block (16), and a first fixing block (17) is provided at the center of the first fixing block (17). There is a second flame head (18), and the second flame head (18) faces the bottom of the pressure roller (10). The top of the first fixing block (17) is fixedly connected to a support rod (19), and the top of the support rod (19) is fixedly connected to a second fixing block (20). The second fixing block (20) is provided with a third flame head (21) inside. The left side of the through hole groove (9) is provided with a driving assembly. The outer surface of the driving assembly is provided with a third fixing block (24). The third fixing block (24) is fixedly connected with a connecting hose (25), and the connecting hose (21) is fixedly connected to the inside. 5) Connected to the second burner head (18) and the third burner head (21), the top of the base plate (1) is fixedly connected to a liquefied gas tank (4), and the liquefied gas tank (4) is connected to a connecting hose (25); the top of the base plate (1) is fixedly connected to a second mounting bracket (8), the top of the second mounting bracket (8) is provided with a first clamping roller (30) and a second clamping roller (31), and the first clamping roller (30) and the second clamping roller (31) are respectively arranged on the left and right sides of the asphalt roll (7), and the third burner head (21) faces the top of the first clamping roller (30). The top of the second mounting frame (8) is fixedly connected to a support plate (36), and the support plate (36) is located on the right side of the second clamping roller (31); the front and rear sides of the second mounting frame (8) are provided with mounting grooves (33), the interior of the mounting grooves (33) is fixedly connected to an arc plate (34), and the arc plate (34) is elastic. The top of the arc plate (34) is fixedly connected to a support block (35), and the front and rear ends of the second clamping roller (31) are rotatably connected to connecting blocks (32), and the connecting blocks (32) are located on the top of the support block (35).

2. The moisture-proof facility for foundation pit construction according to claim 1, characterized in that: The drive assembly includes three pulleys (22), and the pulleys (22) are rotatably connected to the left side of the through hole groove (9). The outer surfaces of the three pulleys (22) are provided with belts (23), and the upper end face of the belts (23) is fixedly connected to the third fixing block (24). The base plate (1) is provided with an electric motor, and the output end of the electric motor is fixedly connected to the front pulley (22).

3. The moisture-proof facility for foundation pit construction according to claim 1, characterized in that: The placement assembly includes a first mounting bracket (5), which is fixedly connected to the top of the base plate (1). The top of the first mounting bracket (5) is provided with a mounting shaft (6), and the asphalt roll (7) is sleeved on the outside of the mounting shaft (6).

4. The moisture-proof facility for foundation pit construction according to claim 3, characterized in that: The first mounting frame (5) has mounting plates (26) fixedly connected to both the front and rear sides of the top. Support rollers (27) are rotatably connected between the two mounting plates (26), and there are five support rollers (27), which are arranged in a circle.

5. The moisture-proof facility for foundation pit construction according to claim 3, characterized in that: The rear end of the first mounting bracket (5) is fixedly connected to a fixing sleeve (28), and a pin (29) is fitted inside the fixing sleeve (28), and the bottom of the pin (29) passes through the mounting shaft (6).

6. The moisture-proof facility for foundation pit construction according to claim 1, characterized in that: The base plate (1) has mounting holes (11) on both the front and rear sides. The two mounting holes (11) are flush with the front and rear sides of the through hole groove (9). The first flame head (13) is fixedly connected inside the mounting hole (11). The first flame head (13) is connected to the liquefied gas tank (4). The elastic pressure plate (12) is rotatably connected inside the mounting hole (11). The elastic pressure plate (12) has connecting grooves (37) at both the front and rear ends. The connecting groove (37) has a slider (38) inside. The slider (38) is slidably connected to the inside of the mounting hole (11). The slider (38) is threadedly connected to a threaded rod (15). The threaded rod (15) extends to the right side of the base plate (1). The threaded rod (15) is rotatably connected inside the base plate (1).

7. The moisture-proof facility for foundation pit construction according to claim 1, characterized in that: Rollers (2) are provided at all four corners of the base plate (1), and a handrail (3) is fixedly connected to the top right side of the base plate (1).

8. The operation method of the foundation pit construction moisture-proof facility according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Install the asphalt roll (7). The asphalt roll (7) is placed on the support roller (27). The mounting shaft (6) is inserted from one end of the first mounting frame (5), passes through the asphalt roll (7), and then comes out from the other side of the first mounting frame (5). The pin (29) is inserted into the inside of the fixing sleeve (28) and then into the inside of the mounting shaft (6) to fix the mounting shaft (6). Rotate the threaded rod (15) to make the slider (38) move along the mounting hole (11). The slider (38) moves in the connecting groove (37), thereby causing the elastic pressure plate (12) to rotate, changing the length of the elastic pressure plate (12) in the vertical direction, and thus changing the position of the elastic pressure plate (12) relative to the ground. The pressure; Step 2, pull out the asphalt roll (7), the asphalt roll (7) is placed on the support plate (36), the asphalt roll (7) passes through the first clamping roller (30) and the second clamping roller (31), the first clamping roller (30) and the second clamping roller (31) play a role in fixing the asphalt roll (7), then the bottom end of the asphalt roll (7) contacts the ground, the liquefied gas tank (4) provides fuel to the second nozzle (18) and the third nozzle (21) through the connecting hose (25), the second nozzle (18) sprays fire towards the asphalt roll (7) in contact with the ground, and the third nozzle (21) sprays fire towards the asphalt roll (7) that has passed through the first clamping roller (30); Step 3 The motor rotates forward a few times and then reverses a few times, repeating this cycle to make the pulley (22) rotate forward or reverse, thereby causing the third fixed block (24) on the belt (23) to move back and forth. Under the action of the connecting hose (25), the movable block (16) moves back and forth along the support frame (14), thereby causing the second flame head (18) and the third flame head (21) to heat the asphalt roll (7) completely. The third flame head (21) preheats first, and the second flame head (18) melts the asphalt on the asphalt roll (7). In step four, the worker holds the handrail (3) and pushes the base plate (1), causing the roller (2) to rotate, thereby making the entire equipment move. As the equipment moves, the molten asphalt on the asphalt roll (7) adheres to the ground. The pressure roller (10) compacts the asphalt roll (7) that is attached to the ground. As the pressure roller (10) rotates, it pulls the asphalt roll (7). The asphalt roll (7) on the first mounting frame (5) is automatically discharged until the asphalt roll (7) on the first mounting frame (5) is completely discharged. In step five, as the equipment moves, the liquefied gas tank (4) provides fuel to the first flame head (13). The first flame head (13) melts the asphalt on both sides of the asphalt roll (7) again. Then, as the elastic pressure plate (12) sweeps across the side of the asphalt roll (7), the side of the asphalt roll (7) is completely attached to the ground.Step six: When a roll of asphalt material (7) is about to be used up, the remaining portion of the asphalt material (7) remains above the first clamping roller (30) and rests on it. A new roll of asphalt material (7) is then replaced using the method described in step one. The new roll of asphalt material (7) is inserted along the support plate (36) between the first clamping roller (30) and the second clamping roller (31). During this process, the arc-shaped plate (34) deforms under stress, and the connecting block (32) moves down along the mounting groove (33), changing the distance between the first clamping roller (30) and the second clamping roller (31). Then, the heat from the third torch (21) is increased, causing the asphalt on the new roll of asphalt material (7) to melt. As the asphalt material (7) is laid, the two rolls of asphalt material (7) are joined together under the pressure of the first clamping roller (30) and the second clamping roller (31).

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