Construction method and device of macromolecular pre-laid anti-sticking waterproof coiled material

Abstract

The invention relates to a construction method and device for a macromolecule pre-laid anti-sticking waterproof coiled material, and belongs to the technical field of building construction.The construction method for the macromolecule pre-laid anti-sticking waterproof coiled material comprises the following steps that a base layer is poured, a concrete cushion layer is poured at the waterproof coiled material laying position, and surface treatment is conducted on the concrete cushion layer; laying a coiled material, cutting the waterproof coiled material, laying the cut waterproof coiled material on the base layer, and enabling the surface, with the macromolecular self-adhesive film layer, of the waterproof coiled material to face upwards; and film tearing and compacting are conducted, specifically, a film tearing and compacting all-in-one machine is adopted to tear off the isolating film on the waterproof coiled material and compact the waterproof coiled material at the same time. The construction method has the advantage that the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a construction method and device for a polymer pre-laid reverse-adhesive waterproofing membrane. Background Art

[0002] The pre-laying reverse bonding process of waterproof membrane refers to laying the waterproof membrane covered with a polymer self-adhesive film layer on the base surface, and then pouring structural concrete on the waterproof membrane to make the concrete slurry tightly bonded with the membrane self-adhesive film layer.

[0003] At present, after laying the waterproofing membrane covered with a polymer self-adhesive film layer, it is usually necessary to first remove the isolation film covering the polymer self-adhesive film layer, and then compact the waterproofing membrane to prepare for the subsequent pouring of structural concrete. In the process of first removing the membrane and then compacting the waterproofing membrane, the construction efficiency is low. Summary of the invention

[0004] In order to help improve construction efficiency, the present application provides a construction method and device for a polymer pre-laid anti-adhesive waterproof membrane.

[0005] In the first aspect, the present application provides a construction method of a polymer pre-laid reverse-adhesive waterproofing membrane, which adopts the following technical solution: A construction method for a polymer pre-laid reverse-adhesive waterproofing membrane comprises the following steps: Concrete the base layer, pour the concrete cushion layer at the location where the waterproof membrane is laid, and perform surface treatment on the concrete cushion layer; Laying the waterproofing membrane, cutting the waterproofing membrane, laying the cut waterproofing membrane on the base layer with the side with the polymer self-adhesive film layer facing upwards; Film tearing and compacting: use a film tearing and compacting integrated machine to tear off the isolation film on the waterproof membrane and compact the waterproof membrane at the same time.

[0006] Preferably, after laying the membrane, the waterproof membrane is overlapped.

[0007] Preferably, the overlapping process of the waterproof membranes includes: adjacent waterproof membranes are overlapped using their own edge positions.

[0008] Preferably, after the film is torn off and compacted, abrasive is sprayed on the surface of the polymer self-adhesive film layer of the waterproof coiled material.

[0009] In the second aspect, the present application provides a construction device for a polymer pre-laid reverse-adhesive waterproofing membrane, which adopts the following technical solution: A construction device for polymer pre-laid reverse-adhesive waterproofing coiled material, comprising a film-tearing and compacting integrated machine in the construction method, wherein the film-tearing and compacting integrated machine comprises a machine body, a pressing roller, an isolation film winding roller and a transmission member; The pressing roller is rotatably arranged on the machine body, and the pressing roller is used to compact the waterproof coiled material after the film is torn; The isolation film winding roller is rotatably arranged on the machine body, and the isolation film winding roller is used to wind up the isolation film; The transmission member is arranged on the pressure roller, and the transmission member is used to drive the isolation film winding roller to rotate when the pressure roller rotates.

[0010] Preferably, the transmission member includes a first transmission shaft, a second transmission shaft, a first transmission pulley, a second transmission pulley and a transmission belt, the first transmission shaft is coaxially connected to the pressure roller, the second transmission shaft is coaxially connected to the isolation film winding roller, the first transmission pulley is sleeved on the first transmission shaft, the second transmission pulley is sleeved on the second transmission shaft, the transmission belt is wound around the first transmission pulley and the second transmission pulley, and the first transmission pulley and the second transmission pulley are connected via a transmission belt.

[0011] Preferably, a fixing ring is sleeved on the second transmission shaft, and the second transmission pulley is rotatably sleeved on the fixing ring. A pawl is hinged on the fixing ring, and a ratchet is arranged on the inner side of the second transmission pulley. The pawl and the ratchet cooperate with each other, and an elastic member for driving the pawl to reset is arranged on the fixing ring.

[0012] Preferably, a pressure plate for pressing the waterproof membrane is slidably connected to the machine body, the sliding direction of the pressure plate is perpendicular to the axial direction of the pressure roller, a cutter for cutting the isolation film is arranged on the pressure plate, an elastic support for maintaining the position of the pressure plate is arranged on the machine body, the pressure plate extends along one side of the moving direction of the pressure roller, when the pressure roller rolls toward the extension direction of the pressure plate, the second transmission pulley drives the fixed ring to rotate synchronously through the ratchet and the pawl.

[0013] Preferably, the elastic support member comprises a support spring for maintaining the position of the pressure plate, one end of the support spring is arranged on the machine body, and the other end is arranged on the pressure plate.

[0014] Preferably, the cutter is arranged at an angle, and the distance from the cutter to the waterproof coiled material increases gradually in the direction away from the pressure roller.

[0015] In summary, this application includes the following beneficial technical effects: 1. The film tearing and compacting machine is used to carry out film tearing and compacting simultaneously, which helps to speed up the construction progress and improve the construction efficiency; 2. When in use, move the film tearing and compacting machine to the end of the waterproof membrane, then tear off the isolation film covered on the polymer self-adhesive film layer at the end of the waterproof membrane and fix it on the isolation film winding roller, then push the machine base to move the pressure roller toward the direction of the torn film. During the movement, the pressure roller drives the isolation film winding roller to rotate through the transmission part, so that the isolation film winding roller continuously rewinds the isolation film, and the pressure roller compacts the waterproof membrane that has just been torn while moving, thereby realizing simultaneous film tearing and compacting, which helps to speed up the construction progress and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the construction device of the polymer pre-laid reverse-adhesive waterproof membrane in the embodiment of the present application.

[0017] Figure 2 yes Figure 1 Enlarged view of part A.

[0018] Figure 3 It is a schematic diagram of the overall structure of the construction device of the polymer pre-laid reverse-adhesive waterproof membrane in the embodiment of the present application from another perspective.

[0019] Explanation of the accompanying drawings: 1. Machine body; 101. Machine base; 102. Handle; 2. Pressing roller; 3. Isolation film winding roller; 4. First transmission shaft; 5. Second transmission shaft; 6. First transmission pulley; 7. Second transmission pulley; 8. Transmission belt; 9. Fixed ring; 10. Pawl; 11. Ratchet; 12. Pressing plate; 13. Cutter; 14. Support spring; 15. Support rod; 16. Elastic member. DETAILED DESCRIPTION

[0020] The following combination Figure 1-Figure 3 This application is described in further detail.

[0021] The present application embodiment discloses a construction method of a polymer pre-laid reverse-adhesive waterproofing membrane. The construction method of a polymer pre-laid reverse-adhesive waterproofing membrane comprises the following steps: S1: pouring the base layer, pouring the concrete cushion layer at the location where the waterproof membrane is laid, and performing surface treatment on the concrete cushion layer; S2: Laying the waterproofing membrane, cutting the waterproofing membrane, and laying the cut waterproofing membrane on the base with the side with the polymer self-adhesive film layer facing upwards; S3: Film tearing and compacting: use a film tearing and compacting machine to tear off the isolation film on the waterproof membrane and compact the waterproof membrane at the same time.

[0022] The thickness of the poured concrete cushion layer in step S1 is 5 mm to 12 mm, and the surface treatment of the concrete cushion layer includes smoothing and calendering the surface of the concrete cushion layer.

[0023] Furthermore, after laying the membrane in step S2, the waterproof membrane overlap treatment is performed, and the waterproof membrane overlap treatment includes overlapping adjacent waterproof membranes using their own edge positions, with an overlap length greater than 50 mm, and bending the ends of the waterproof membranes upward at the corner positions to reserve a bending portion.

[0024] Furthermore, after the film is torn off and compacted in step S3, abrasive is sprayed on the surface of the polymer self-adhesive film layer of the waterproof coiled material using a spraying device, wherein the abrasive is corundum.

[0025] The implementation principle of the construction method of the polymer pre-laid reverse-adhesive waterproof membrane in the embodiment of the present application is: by adopting a film tearing and compacting integrated machine, the film tearing and compacting are carried out simultaneously, which helps to speed up the construction progress and ensure the construction efficiency; by spraying a layer of abrasive on the surface of the compacted polymer self-adhesive film layer, on the one hand, the self-adhesive film layer on the waterproof membrane can be isolated, so that workers can walk and construct on the waterproof membrane without damaging the waterproof membrane easily; on the other hand, when the concrete is poured subsequently, the cement slurry in the concrete can penetrate the abrasive and contact the self-adhesive film layer on the waterproof membrane, thereby ensuring the bonding effect between the entire structural concrete and the self-adhesive film layer on the waterproof membrane.

[0026] The present application also discloses a construction device for pre-laying a polymer anti-adhesive waterproofing membrane. Figure 1 The construction device includes the film-tearing and compacting integrated machine used in the above-mentioned construction method. Specifically, the film-tearing and compacting integrated machine includes a machine body 1, a pressure roller 2, an isolation film winding roller 3 and a transmission member; the machine body 1 includes a door-shaped machine base 101 and a handle 102 fixedly arranged on the machine base 101, and the pressure roller 2 is rotatably arranged in the door-shaped machine base 101. The rotation axis of the pressure roller 2 is parallel to the length direction of the machine base 101, and the pressure roller 2 is used to compact the waterproof coiled material after the film is torn; when the pressure roller 2 abuts against the surface of the waterproof coiled material, the machine base 101 is in a suspended state, that is, the machine base 101 is located above the waterproof coiled material, so that the machine base 101 will not affect the waterproof coiled material. In the embodiment of the present application, one pressure roller 2 is provided, and in other embodiments, the number of pressure rollers 2 can be set as needed.

[0027] Reference Figure 1 and Figure 2 There are two vertical plates (not shown in the figure) relatively fixed on the top of the machine base 101, and the isolation film winding roller 3 is rotatably arranged between the two vertical plates. The rotation axis of the isolation film winding roller 3 is parallel to the rotation axis of the pressure roller 2, and the isolation film winding roller 3 is used to wind up the isolation film; the transmission member is arranged on the pressure roller 2, and the transmission member is used to drive the isolation film winding roller 3 to rotate when the pressure roller 2 rotates.

[0028] During operation, the film tearing and compacting integrated machine is first moved to the end of the waterproof membrane, and then the isolation film covered on the polymer self-adhesive film layer at the end of the waterproof membrane is torn off and fixed on the isolation film winding roller 3, and then the machine base 101 is pushed to move the pressure roller 2 toward the direction of the torn film of the waterproof membrane. During the movement, the pressure roller 2 drives the isolation film winding roller 3 to rotate through the transmission part, so that the isolation film winding roller 3 continuously winds up the isolation film, and the pressure roller 2 compacts the waterproof membrane that has just been torn off during the movement, thereby realizing the simultaneous film tearing and compacting, which helps to speed up the construction progress and improve the construction efficiency.

[0029] Reference Figure 1 In order to reduce the adhesion between the pressure roller 2 and the self-adhesive film layer on the waterproof coil, the pressure roller 2 adopts an anti-sticking pressure roller; the end of the isolation film can be fixed on the isolation film winding roller 3 by screws, or fixed on the isolation film winding roller 3 by a clamping mechanism on the isolation film winding roller 3, or welded to the isolation film winding roller 3, which is not limited here.

[0030] Reference Figure 1 and Figure 2 In order to facilitate the rotation of the isolation film winding roller 3 when the pressure roller 2 rotates, the transmission member includes a first transmission shaft 4, a second transmission shaft 5, a first transmission pulley 6, a second transmission pulley 7 and a transmission belt 8. The first transmission shaft 4 is coaxially fixed with the pressure roller 2, the second transmission shaft 5 is rotatably penetrated on the vertical plate, the second transmission shaft 5 is coaxially connected with the isolation film winding roller 3, the first transmission pulley 6 is fixedly sleeved on the first transmission shaft 4, the second transmission pulley 7 is sleeved on the second transmission shaft 5, the transmission belt 8 is wound between the first transmission pulley 6 and the second transmission pulley 7, and the first transmission pulley 6 and the second transmission pulley 7 are connected through the transmission belt 8.

[0031] Reference Figure 1 and Figure 2 Specifically, the outer diameter of the isolation film winding roller 3 is smaller than the outer diameter of the pressure roller 2, and the diameter of the first transmission belt pulley 6 is larger than the diameter of the second transmission belt pulley 7, so that the length of the forward track of the pressure roller 2 is adapted to the length of the isolation film winding roller 3. In other embodiments, the outer diameter of the isolation film winding roller 3 can be designed to be equal to the outer diameter of the pressure roller 2, and the diameter of the first transmission belt pulley 6 is equal to the diameter of the second transmission belt pulley 7.

[0032] When the pressure roller 2 rolls along the waterproof coil, the second transmission shaft 5 and the isolation film winding roller 3 are driven to rotate in the same direction through the transmission of the first transmission pulley 6, the transmission belt 8 and the second transmission pulley 7, which helps to rotate the isolation film winding roller 3 to continuously wind up the isolation film.

[0033] Reference Figure 1In order to facilitate the removal of the rolled-up isolation film, one end of the isolation film winding roller 3 is detachably connected to the second transmission shaft 5 by screws or bolts, and the other end is detachably connected to the machine base 101 by bearings and screws. This makes it easy to remove the isolation film winding roller 3 from the machine base 101.

[0034] Reference Figure 1 and Figure 2 In order to make the pressure roller 2 drive the isolation film winding roller 3 to rotate only when it rolls in the forward direction, and the isolation film winding roller 3 does not rotate when it moves backward; a fixed ring 9 is fixedly sleeved on the second transmission shaft 5, and the second transmission pulley 7 is rotatably connected to the corresponding vertical plate. The second transmission pulley 7 is rotatably sleeved on the fixed ring 9, and a pawl 10 is hinged on the fixed ring 9. The hinge axis of the pawl 10 is parallel to the axial direction of the fixed ring 9. A ratchet 11 is fixedly arranged on the inner side of the second transmission pulley 7, and the pawl 10 cooperates with the ratchet 11. An elastic member 16 for driving the pawl 10 to reset is arranged on the fixed ring 9.

[0035] Reference Figure 1 and Figure 2 In order to facilitate the reset of the pawl 10, the elastic member 16 includes a reset spring, which is arc-shaped, with one end of the reset spring fixed on the fixing ring 9 and the other end fixed on the pawl 10. In the embodiment of the present application, when the pressure roller 2 rotates, the second transmission pulley 7 is driven to rotate, so that the second transmission pulley 7 drives the ratchet 11 to abut against the pawl 10 and drives the fixing ring 9 to rotate synchronously, and the rolling direction of the pressure roller 2 is the forward direction. In other embodiments, the reset spring can also be replaced by a torsion spring, which is sleeved on the hinge shaft of the pawl 10, one end of the torsion spring is on the fixing ring 9, and the other end is fixed on the pawl 10, and the pawl 10 can also be reset by the torsion spring.

[0036] When the pressure roller 2 rolls in the forward direction, the ratchet 11 abuts against the pawl 10 and the fixed ring 9 and rotates synchronously through the transmission of the first transmission pulley 6, the transmission belt 8 and the second transmission pulley 7, so that the fixed ring 9 drives the second transmission shaft 5 and the isolation film winding roller 3 to rotate in the same direction, which is convenient for winding up the isolation film; when the pressure roller 2 rolls backward, the second transmission pulley 7 drives the ratchet 11 to rotate in the opposite direction through the transmission of the first transmission pulley 6, the transmission belt 8 and the second transmission pulley 7, and the ratchet 11 will press the pawl 10 to rotate in the direction close to the fixed ring 9, and by driving the pawl 10 to deform, the ratchet 11 will not drive the pawl 10 and the fixed ring 9 to rotate when it rotates. Therefore, when the pressure roller 2 moves backward, the isolation film winding roller 3 will not rotate, and the isolation film will not be unwound.

[0037] Reference Figure 1 and Figure 3A support rod 15 is slidably connected to the side of the machine body 1, and the sliding direction of the support rod 15 is perpendicular to the axial direction of the pressure roller 2, and the sliding direction of the support rod 15 is parallel to the forward direction of the pressure roller 2. The support rod 15 is located on the side of the machine base 101 away from the first transmission pulley 6, and a pressing plate 12 for pressing the waterproof membrane is fixed at the lower end of the support rod 15. The length direction of the pressing plate 12 is parallel to the sliding direction of the support rod 15, and the pressing plate 12 extends toward the forward direction close to the pressure roller 2, that is, the end of the pressing plate 12 away from the support rod 15 is located in front of the pressure roller 2 when working, and the pressing plate 12 extends along one side of the moving direction of the pressure roller 2. A cutter 13 for cutting the isolation film is fixed on the pressing plate 12, and an elastic support member for maintaining the position of the pressing plate 12 is provided on the machine body 1. When the pressure roller 2 rolls toward the side where the pressing plate 12 is located, the second transmission pulley 7 drives the fixing ring 9 to rotate synchronously through the ratchet 11 and the pawl 10.

[0038] Reference Figure 3 In order to maintain the position of the pressure plate 12, the elastic support member includes a support spring 14, the extension direction of the support spring 14 is parallel to the sliding direction of the support rod 15, one end of the support spring 14 is fixed on the body 1, and the other end is fixed on the side of the support rod 15 away from the extension direction of the pressure plate 12.

[0039] When the width of the isolation film on the waterproof coil is greater than the length of the isolation film winding roller 3, the isolation film covering the polymer self-adhesive film layer at the end of the waterproof coil is torn off first. During the tearing process of the isolation film, the pressure plate 12 presses the isolation film next to the pressure roller 2, so that the torn isolation film is separated from the isolation film pressed by the pressure plate 12 under the action of the cutter 13, thereby realizing the cutting of the isolation film, which is helpful to cut the isolation film whose width is greater than the length of the isolation film winding roller 3 first and then wind it up separately.

[0040] When the pressure roller 2 moves forward until the pressure plate 12 abuts against the wall, as the pressure roller 2 continues to move forward, the support rod 15 on the pressure plate 12 and the machine base 101 slide relative to each other, and the support rod 15 compresses the support spring 14, so that the pressure roller 2 can continue to approach the wall. Since the pressure plate 12 is always in contact with the wall during the continued advancement of the pressure roller 2, the cutting effect of the cutter 13 on the isolation film can be guaranteed until the pressure roller 2 moves to the isolation film winding roller 3 and completely winds up the isolation film.

[0041] Reference Figure 1 and Figure 3 In order to ensure that the cutter 13 can cut the isolation film and rewind it separately, the cutter 13 is tilted, and the blade of the cutter 13 is located on the side of the pressing plate 12 close to the center of the pressing roller 2. Specifically, the distance between the cutter 13 and the waterproofing coil increases in the direction away from the pressing roller 2. The blade of the cutter 13 is at a certain distance from the bottom wall of the pressing plate 12, so that when the pressing roller 2 moves, the cutter 13 can only cut the torn isolation film without damaging the waterproofing coil itself.

[0042] The implementation principle of the construction device of the polymer pre-laid reverse-adhesive waterproofing membrane in the embodiment of the present application is as follows: when working, the film tearing and compacting integrated machine is first moved to the end of the waterproofing membrane, and then the isolation film covered on the polymer self-adhesive film layer at the end of the waterproofing membrane is torn off and fixed on the isolation film winding roller 3. If the width of the isolation film is greater than the length of the isolation film winding roller 3, when the isolation film is torn off, the torn isolation film passes through the cutter 13 by itself to separate it from the isolation film pressed by the pressing plate 12, and then the handle 102 is pushed to move the machine base 101 and the pressing roller 2 toward the direction of the torn film. The moving direction of the pressure roller 2 is the forward direction. During the movement, the pressure roller 2 is driven by the first transmission pulley 6, the transmission belt 8 and the second transmission pulley 7 to make the ratchet 11 abut against the pawl 10, so that the fixed ring 9 and the second transmission pulley 7 rotate synchronously, so that the fixed ring 9 drives the second transmission shaft 5 and the isolation film winding roller 3 to rotate in the same direction. The isolation film winding roller 3 continuously winds the isolation film, and the pressure roller 2 compacts the waterproof membrane that has just been torn off during the movement, so that the membrane tearing and compacting are carried out synchronously, which helps to speed up the construction progress and improve the construction efficiency.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction method for polymer pre-laid reverse-adhesive waterproofing membrane, characterized in that: The steps include: Concrete the base layer, pour the concrete cushion layer at the location where the waterproof membrane is laid, and perform surface treatment on the concrete cushion layer; Laying the waterproofing membrane, cutting the waterproofing membrane, laying the cut waterproofing membrane on the base layer with the side with the polymer self-adhesive film layer facing upwards; Film tearing and compacting: use a film tearing and compacting integrated machine to tear off the isolation film on the waterproof membrane and compact the waterproof membrane at the same time.

2. The construction method of a polymer pre-laid reverse-adhesive waterproofing membrane according to claim 1 is characterized in that: After laying the membrane, the waterproof membrane is overlapped.

3. The construction method of a polymer pre-laid reverse-adhesive waterproofing membrane according to claim 2 is characterized in that: The overlapping process of waterproof membranes includes: adjacent waterproof membranes are overlapped using their own edge positions.

4. The construction method of a polymer pre-laid reverse-adhesive waterproofing membrane according to claim 1 is characterized in that: After the film is torn off and compacted, abrasive is sprayed on the surface of the polymer self-adhesive film layer of the waterproof membrane.

5. A construction device for polymer pre-laid reverse-adhesive waterproofing membrane, comprising the film-tearing and compacting integrated machine in the construction method according to any one of claims 1 to 4, characterized in that: The film tearing and compacting integrated machine comprises a machine body (1), a pressing roller (2), an isolation film winding roller (3) and a transmission member; The pressing roller (2) is rotatably arranged on the machine body (1), and the pressing roller (2) is used to compact the waterproof coiled material after the film is torn off; The isolation film winding roller (3) is rotatably arranged on the machine body (1), and the isolation film winding roller (3) is used to wind up the isolation film; The transmission member is arranged on the pressure roller (2), and is used to drive the isolation film winding roller (3) to rotate when the pressure roller (2) rotates.

6. A construction device for polymer pre-laid reverse-adhesive waterproofing membrane according to claim 5, characterized in that: The transmission member comprises a first transmission shaft (4), a second transmission shaft (5), a first transmission pulley (6), a second transmission pulley (7) and a transmission belt (8); the first transmission shaft (4) is coaxially connected to the pressure roller (2); the second transmission shaft (5) is coaxially connected to the isolation film winding roller (3); the first transmission pulley (6) is sleeved on the first transmission shaft (4); the second transmission pulley (7) is sleeved on the second transmission shaft (5); the transmission belt (8) is wound around the first transmission pulley (6) and the second transmission pulley (7); the first transmission pulley (6) and the second transmission pulley (7) are connected in transmission via the transmission belt (8).

7. A construction device for polymer pre-laid reverse-adhesive waterproofing membrane according to claim 6, characterized in that: The second transmission shaft (5) is sleeved with a fixing ring (9), the second transmission pulley (7) is rotatably sleeved on the fixing ring (9), a ratchet (10) is hinged on the fixing ring (9), a ratchet (11) is arranged inside the second transmission pulley (7), the ratchet (10) and the ratchet (11) cooperate with each other, and an elastic member (16) for driving the ratchet (10) to return to its original position is arranged on the fixing ring (9).

8. The construction device for polymer pre-laid reverse-adhesive waterproofing membrane according to claim 7, characterized in that: The machine body (1) is slidably connected with a pressing plate (12) for pressing the waterproof coiled material. The sliding direction of the pressing plate (12) is perpendicular to the axial direction of the pressing roller (2). The pressing plate (12) is provided with a cutter (13) for cutting the isolation film. The machine body (1) is provided with an elastic support member for maintaining the position of the pressing plate (12). The pressing plate (12) extends along one side of the moving direction of the pressing roller (2). When the pressing roller (2) rolls toward the extension direction of the pressing plate (12), the second transmission pulley (7) drives the fixing ring (9) to rotate synchronously through the ratchet (11) and the ratchet pawl (10).

9. A construction device for polymer pre-laid reverse-adhesive waterproofing membrane according to claim 8, characterized in that: The elastic support member comprises a support spring (14) for maintaining the position of the pressure plate (12); one end of the support spring (14) is arranged on the machine body (1), and the other end is arranged on the pressure plate (12).

10. A construction device for polymer pre-laid reverse-adhesive waterproofing membrane according to claim 8, characterized in that: The cutter (13) is arranged at an angle, and the distance between the cutter (13) and the waterproof coiled material increases gradually in a direction away from the pressure roller (2).

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