Building waterproofing membrane construction device and construction method

Abstract

The present application relates to the field of building construction, specifically to a kind of building waterproofing membrane construction device, including trolley, trolley is equipped with material feeding roller and material guide roller and cutting tool, construction device further includes flat laying mechanism, flat laying mechanism includes flat roller and air bag, when flat roller moves to corner and air bag is aerated, air bag is in the inflation state and flat laying in the form of extrusion to the corner of wall, trolley is equipped with displacement mechanism to drive flat roller to move, the present application promotes the roller pressing of flat roller to the roll material by the pushing of trolley, completes the laying of building surface, until flat roller contacts the roll material on wall side, with the aeration of air bag, extrusion roll material is laid on the corner of wall side, so that the corner of wall side can be laid flat, improve the laying effect of roll material, avoid the wrinkle when roll material is laid, reduce the difficulty of corner laying roll material.The present application also relates to a kind of construction method of building waterproofing membrane construction device.

Description

Technical Field

[0001] This invention relates to the field of building construction, specifically to a construction device for building waterproof membrane, and also to a construction method for the construction device for building waterproof membrane. Background Technology

[0002] During construction, especially in the building construction of large buildings, waterproof layers are usually laid on the rooftops, terraces, and other surfaces that are in direct contact with the outside. The laying of waterproof layers can prevent rainwater from penetrating or leaking into the building from the floor surface, thus avoiding any impact on the normal use of the building. Waterproof membranes play a vital role in building construction, so their construction operation is also particularly important. In the actual laying process of existing waterproof membranes, operators need to cooperate with each other. First, the surface to be laid must be cleaned of any debris, then the position of the waterproof membrane must be aligned, and finally the waterproof membrane is laid. After the laying is completed, water is stored on the laid surface to check for leaks. Once the waterproof standard is met, the laying of the waterproof membrane is considered complete.

[0003] The existing construction method is more difficult to install, especially when there are corners on the building surface. It is easy to produce wrinkles, which affects the overall flatness of the installation, reduces the quality of the installation, and shortens the service life of the waterproof membrane. Therefore, there is still room for improvement in the installation of waterproof membranes in building waterproofing projects.

[0004] The currently disclosed Chinese patent CN202110239572.5 discloses a method for laying waterproof membrane in building waterproofing projects. This method uses the following laying equipment: the equipment includes a debris cleaner and a membrane laying machine. The debris cleaner includes a debris cart pushed by an operator, and further includes a suction pipe, an elastic fixing support rod, a suction head, rollers, directional wheels, a collection box, and an angle adjustment device. The collection box is located inside the debris cart. The suction pipe is connected to the waste bin via an air pump. The suction head is located at the end of the suction pipe furthest from the receiving bin. The elastic fixing support rod is located between the waste cart and the suction head, with one end connected to the suction head and the other end connected to the waste cart via an angle adjustment device. The directional wheel is rolled on the side wall of the suction head and rolls on the building surface. The roll material laying machine includes an extension rod, rolling bearings, uprights, tilting rods, extension rods, sliding grooves, locking bolts, and clamping components. The system comprises an extrusion plate, a connecting device, and an extrusion roller. An extension rod is fixedly mounted on a scrap cart and extends in the forward direction of the cart. An upright rod rotates on the extension rod and is connected to it via a rolling bearing. A waterproof membrane is fitted onto the upright rod. An inclined rod is located in the middle of the scrap cart and is inclined along the inclined surface of the building corner, contacting the waterproof membrane. An extension rod is installed on the scrap cart near the building corner and extends towards the corner surface. A sliding groove is provided on the scrap cart for the extension rod to slide and insert. A locking bolt is threaded to the end of the extension rod and presses against the inner wall of the scrap cart. A clamping member is located at the bottom of the extension rod and clamps a portion of the waterproof membrane. Several extrusion plates are rotatably mounted on the ends of the extension rods, and adjacent extrusion plates are rotatably connected. The extension rod and extrusion plates, as well as adjacent extrusion plates, are fixed by a connecting device. The extrusion roller is rotatably mounted on the side of the extrusion plate near the building surface to press the waterproof membrane onto the building surface.

[0005] According to the aforementioned patent, the connection device allows for free adjustment of the angle between the extrusion plates during actual equipment debugging, making the extrusion plates suitable for building surfaces with different corner angles. However, this method of adjusting the angle of the extrusion plates cannot continuously extrude the roll material to the corner while it is being laid, resulting in poor performance. Therefore, there is a need for a device that can extrude the roll material to the corner during the laying process. Summary of the Invention

[0006] To address the problems existing in current technology, this invention provides a construction device for building waterproof membrane rolls. By pushing a trolley, the flat rollers press the membrane onto the building surface, completing the laying of the membrane. Once the flat rollers bring the membrane into contact with the wall, air is circulated through the air bladders, compressing the membrane and laying it at the corner of the wall. This ensures a smooth laying at the corner, improves the laying effect of the membrane, avoids wrinkles during laying, and reduces the difficulty of laying membrane at corners.

[0007] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0008] This invention provides a construction device for building waterproof membrane rolls, including a trolley. The trolley is equipped with a feeding roller for placing the membrane rolls, a guide roller for guiding the membrane rolls to unfold, and a cutting blade. The axis of the feeding roller is parallel to the axis of the guide roller. The cutting blade is located on the trolley near the feeding roller and away from the guide roller, and the length direction of the cutting blade is parallel to the axis of the feeding roller. The construction device also includes a laying mechanism for automatically laying the membrane rolls on the ground as the trolley moves. The laying mechanism includes a flat pressure roller and an air bladder. The flat pressure roller is mounted on the trolley and is located directly below the guide roller. The axis of the flat pressure roller is parallel to the axis of the guide roller, and the flat pressure roller can move towards the cutting blade. The air bladder is fitted onto the flat pressure roller. When the flat pressure roller moves to a corner and the air bladder is ventilated, the air bladder inflates and lays the membrane rolls flat at the corner in a compressed manner. The trolley is equipped with a displacement mechanism for driving the flat pressure roller to move.

[0009] Preferably, the flat roller has a cavity, and a number of air holes are opened on the surface of the flat roller. The two ends of the flat roller are respectively opened with an air inlet and an air outlet communicating with the cavity. When the air inlet is ventilated, the air outlet is closed and the air bag is inflated. When the air outlet is ventilated, the air inlet is closed and the air bag is in normal condition.

[0010] Preferably, the two ends of the airbag are respectively covered on one end of the flat pressure roller, and each end of the flat pressure roller is provided with an end cap. The two ends of the airbag are sealed and fixed to the end of the flat pressure roller through the end cap.

[0011] Preferably, a heating wire is provided inside the cavity of the flat roller, and the two ends of the heating wire are fixedly connected to the two inner ends of the flat roller. When air is circulated into the cavity, the air is heated by passing through the heating wire.

[0012] Preferably, an arc-shaped baffle is provided on the side of the flat pressure roller. The arc-shaped baffle is located on the side of the flat pressure roller away from the cutting tool. The arc-shaped baffle is connected to the displacement mechanism. When the flat pressure roller moves to the position of the cutting tool, the cutting tool is in a state of pressing the roll material against the surface of the arc-shaped baffle.

[0013] Preferably, the displacement mechanism includes a lead screw slide, and there are two lead screw slides symmetrically arranged at both ends of the flat pressure roller. Both lead screw slides are connected to the trolley. A slider is slidably mounted on each lead screw slide. A bearing is fixedly mounted on both ends of the flat pressure roller. Each slider is fixedly connected to the outer ring of the corresponding bearing.

[0014] Preferably, the lead screw slide has a shaft extending outward from the end near the cutting tool, and the trolley is provided with a shaft connection frame for shaft connection. A suspension rope is connected between the end of the lead screw slide near the flat pressure roller and the guide roller. When the flat pressure roller is supported on the ground, the lead screw slide is in a horizontal state.

[0015] Preferably, the guide roller has a rotating shaft rotatably connected to the trolley, the suspension rope is fixedly wound on the rotating shaft, and the trolley is equipped with a rotary motor for driving the rotating shaft to rotate. When the rotating shaft rotates and winds up the suspension rope, the lead screw slide table and the flat pressure roller are in a lifted state.

[0016] Preferably, a limiting member is provided on both sides of the feeding roller on the trolley, and the feeding roller is fixed when it is between the two limiting members.

[0017] The present invention also provides a construction method for a building waterproof membrane construction device, comprising the following steps:

[0018] S1. Clean the building surface where waterproof membrane needs to be laid;

[0019] S2, Lay the free end of the roll material at the starting point of the building surface where it needs to be laid;

[0020] S3, push the trolley to move in a straight line and lay the roll material on the building surface under the pressure of the flat roller;

[0021] S4, the displacement mechanism drives the flat pressure roller to the position of the cutting knife until the flat pressure roller presses the roll material against the corner surface of the wall;

[0022] S5, inflate the airbag and compress the roll material to fill the gap in the corner of the wall;

[0023] S6, by squeezing the roll material, the pressure is applied to the cutting blade, causing the roll material to be cut.

[0024] The advantages of this application compared to the prior art are:

[0025] 1. This invention promotes the rolling of the membrane by pushing the trolley, which in turn causes the flat roller to press the membrane onto the building surface. After the flat roller contacts the membrane against the wall, the air bladder is vented, compressing the membrane and laying it at the corner of the wall. This ensures a smooth and complete laying of the membrane on the building surface, improves the laying effect, avoids wrinkles during laying, and reduces the difficulty of laying the membrane at corners.

[0026] 2. The present invention utilizes the cavity structure of the flat pressure roller and the air holes on its surface to allow air to pass through the flat pressure roller, which can cause the air bladder to expand and compress the roll material at the wall edge, ensuring that the roll material can be laid flat at the wall edge, improving the integrity of the roll material laying and avoiding the phenomenon of wrinkles in the roll material.

[0027] 3. By setting heating wires inside the flat pressure roller, the air inside the flat pressure roller is heated as air is continuously circulated and discharged through the heating wires. The heat from the flat pressure roller acts on the airbag, thereby heating the roll material and melting the hot melt adhesive on the surface of the roll material. This ensures that the roll material is laid smoothly on the building surface, thus improving the laying efficiency. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a construction device for waterproof membrane sheets.

[0029] Figure 2 This is a left view of a construction device for waterproof membrane installation.

[0030] Figure 3 This is a top view of a construction device for waterproof membrane installation.

[0031] Figure 4 yes Figure 3 A three-dimensional structural cross-sectional view of point AA;

[0032] Figure 5 yes Figure 3 Sectional view at BB;

[0033] Figure 6 This is a three-dimensional structural diagram of the flat-laying mechanism of a building waterproof membrane construction device;

[0034] Figure 7 This is a front view of the laying mechanism of a building waterproof membrane construction device;

[0035] Figure 8 yes Figure 7 A three-dimensional sectional view of the structure at point C;

[0036] Figure 9This is a schematic diagram illustrating the state of a building waterproof membrane installation device from the starting point of the membrane laying to when it touches the corner of the wall.

[0037] Figure 10 This is a schematic diagram illustrating the state of a building waterproof membrane application device from when the membrane touches a corner of a wall to when it is squeezed against that corner.

[0038] Figure 11 This is a flowchart of a method for constructing waterproof membrane rolls.

[0039] The numbers on the map are:

[0040] 1-Trolley;

[0041] 2- Feeding roller;

[0042] 21-Limiting component;

[0043] 3-Guide roller;

[0044] 31 - Rotation axis;

[0045] 32-Rotary motor;

[0046] 4-Cutting tools;

[0047] 5-Tiling mechanism;

[0048] 51-Flat pressure roller; 511-Air hole; 512-Air inlet; 513-Air outlet; 514-Bearing;

[0049] 52-Airbag; 521-End cap;

[0050] 53 - Heating wire;

[0051] 54-Arc-shaped baffle;

[0052] 6-Displacement mechanism;

[0053] 61-Screw slide; 611-Slider; 612-Shaft;

[0054] 62-Shaft connector;

[0055] 63-Suspension rope;

[0056] 7-Roll material. Detailed Implementation

[0057] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0058] See Figures 1-10As shown, a construction device for waterproof membrane rolls includes a trolley 1, on which are mounted a feeding roller 2 for placing the membrane roll 7, a guide roller 3 for guiding the roll roll 7 to unfold, and a cutting blade 4. The axial direction of the feeding roller 2 is parallel to the axial direction of the guide roller 3. The cutting blade 4 is located on the trolley 1 on a side close to the feeding roller 2 and away from the guide roller 3, and the length direction of the cutting blade 4 is parallel to the axial direction of the feeding roller 2. The construction device also includes a laying mechanism 5 for automatically laying the membrane roll 7 on the ground as the trolley 1 moves. The structure 5 includes a flat pressure roller 51 and an air bladder 52. The flat pressure roller 51 is mounted on the trolley 1 and is located directly below the guide roller 3. The axis of the flat pressure roller 51 is parallel to the axis of the guide roller 3, and the flat pressure roller 51 can move toward the cutting tool 4. The air bladder 52 is fitted onto the flat pressure roller 51. When the flat pressure roller 51 moves to the corner and air is circulated through the air bladder 52, the air bladder 52 is inflated and lays the roll material 7 flat at the corner in a compressed form. The trolley 1 is equipped with a displacement mechanism 6 for moving the flat pressure roller 51.

[0059] When laying the roll material 7 on the building surface, firstly, the building surface to be laid is cleaned. Then, the operator pushes the trolley 1 to the wall position of the building surface. The operator passes the free end of the roll material 7 around the guide roller 3, and then through the flat roller 51 to lay it on the building surface. The guide roller 3 is located on the lower surface of the roll material 7, and the flat roller 51 is located on the upper surface of the roll material 7. As the operator pushes the trolley 1, the trolley 1 moves in a straight line towards the opposite wall of the building surface. As the trolley 1 moves, the flat roller 51 gradually lays the roll material 7 on the building surface in a rolling manner. Until the trolley 1 reaches the wall, since there is still a distance between the flat roller 51 and the wall where the roll material 7 has not been laid, the displacement mechanism 6 is controlled to move the flat roller 51 towards the wall. During the movement of roll 7, the roll material 7 completes the unlaid section of the building surface until the flat roller 51 presses the roll material 7 against the wall surface. The roll material 7 also presses against the cutting blade 4. As air is circulated into the airbag 52, the airbag 52 expands and squeezes the roll material 7, thus squeezing the roll material 7 into the corner of the wall, so that the roll material 7 is completely laid at the corner. During the squeezing process, since the roll material 7 will be pressed against the cutting blade 4, as the pressure gradually increases, the roll material 7 will be cut by the cutting blade 4, and finally the complete laying of a part of the building surface is completed. After the air is circulated into the airbag 52, the airbag 52 is deflated, and the displacement control mechanism 6 causes the flat roller 51 to return to its original position, ready to lay the next part of the building surface, achieving the effect of complete laying of the building surface and corners.

[0060] See Figures 6-8As shown, the flat roller 51 has a cavity, and a number of air holes 511 are opened on the surface of the flat roller 51. The two ends of the flat roller 51 are respectively opened with an air inlet 512 and an air outlet 513 communicating with the cavity. When the air inlet 512 is ventilated, the air outlet 513 is closed and the air bag 52 is inflated. When the air outlet 513 is ventilated, the air inlet 512 is closed and the air bag 52 is in normal condition.

[0061] When the flat roller 51, carrying the roll material 7, comes into contact with the wall, air is introduced into the flat roller 51 through the air inlet 512, while the air outlet 513 is closed. The air flows out through the air hole 511, causing the air bladder 52 to expand. Once the air bladder 52 is in the expanded state, it compresses the roll material 7, allowing the roll material 7 to be laid at the corner, thus completing the laying of the corner of the building surface. After the roll material 7 is laid at the corner, the air inlet 512 of the flat roller 51 is closed and the air outlet 513 is opened to extract the air from the flat roller 51, allowing the air bladder 52 to return from the expanded state to the normal state, without affecting the subsequent laying of the roll material 7.

[0062] See Figure 8 As shown, the two ends of the airbag 52 are respectively covered by one end of the flat pressure roller 51. Each end of the flat pressure roller 51 is provided with an end cap 521. Both ends of the airbag 52 are sealed and fixed to the end of the flat pressure roller 51 by the end cap 521.

[0063] When the airbag 52 is installed, it is sleeved on the flat pressure roller 51, with both ends of the airbag 52 covering both ends of the flat pressure roller 51. The end cap 521 is then used to seal the end of the airbag 52 to the end of the flat pressure roller 51. When air is circulated into the flat pressure roller 51, there will be no air leakage at both ends of the airbag 52. When the airbag 52 is replaced, only the end cap 521 needs to be removed and the airbag 52 replaced, ensuring that the airbag 52 is always in normal working condition.

[0064] See Figure 8 As shown, a heating wire 53 is provided in the cavity of the flat pressure roller 51. The two ends of the heating wire 53 are fixedly connected to the two ends of the inner side of the flat pressure roller 51. When air is circulated into the cavity, the air is heated by passing through the heating wire 53.

[0065] When air is circulated inside the flat roller 51, under normal rolling pressure on the roll material 7, both the air inlet 512 and the air outlet 513 of the flat roller 51 are in the open state. Air continuously enters at one end of the flat roller 51 and continuously exits at the other end, maintaining air circulation inside the flat roller 51 and keeping the airbag 52 in a normal, non-inflated state. Since a heating wire 53 is provided inside the cavity of the flat roller 51, the heating wire 53 is controlled to be in a heating state. As the air circulates, the air is heated. As it continues to circulate inside the flat roller 51, the surface of the flat roller 51 is heated, and the airbag 52 is also heated, transferring heat to the roll material 7. After the roll material 7 is heated, the hot melt adhesive on the side facing the building surface melts. As the flat roller 51 rolls the roll material 7, the roll material 7 is laid on the building surface, completing the laying of the roll material 7 on the building surface.

[0066] See Figure 4 As shown, an arc-shaped baffle 54 is provided on the side of the flat pressure roller 51. The arc-shaped baffle 54 is located on the side of the flat pressure roller 51 away from the cutting tool 4. The arc-shaped baffle 54 is connected to the displacement mechanism 6. When the flat pressure roller 51 moves to the position of the cutting tool 4, the cutting tool 4 is in the state of pressing the roll material 7 against the surface of the arc-shaped baffle 54.

[0067] When the flat roller 51 brings the roll material 7 into contact with the wall, the surface of the roll material 7 presses against the cutting blade 4. The roll material 7 is squeezed between the cutting blade 4 and the arc-shaped baffle 54. As the airbag 52 expands, since the arc-shaped baffle 54 blocks the airbag 52 in a direction away from the wall, the airbag 52 expands only towards the wall. This allows the airbag 52 to squeeze the roll material 7 at the corner more quickly. As the airbag 52 expands and squeezes the roll material 7, the roll material 7 is pressed against the cutting blade 4 until the roll material 7 is cut by the cutting blade 4, completing the full laying of the entire section of the roll material 7.

[0068] See Figure 5 and Figure 6 As shown, the displacement mechanism 6 includes a lead screw slide 61. There are two lead screw slides 61, which are symmetrically arranged at both ends of the flat pressure roller 51. Both lead screw slides 61 are connected to the trolley 1. A slider 611 is slidably mounted on each lead screw slide 61. A bearing 514 is fixedly mounted on both ends of the flat pressure roller 51. Each slider 611 is fixedly connected to the outer ring of the corresponding bearing 514.

[0069] When the displacement mechanism 6 drives the flat roller 51, the screw slide 61 drives the slider 611 to move. Since the end of the flat roller 51 and the slider 611 are connected by the bearing 514, the flat roller 51 can still rotate during the movement, which avoids the flat roller 51 rubbing against the surface of the roll material 7 and damaging the surface of the roll material 7. This not only realizes the laying of the roll material 7 on the building surface of the wall side, but also ensures the flatness of the surface of the roll material 7.

[0070] See Figure 2 As shown, a shaft 612 extends outward from the end of the lead screw slide 61 near the cutting tool 4. The trolley 1 is provided with a shaft connection frame 62 for the shaft 612 to be connected. A suspension rope 63 is connected between the end of the lead screw slide 61 near the flat pressure roller 51 and the guide roller 3. When the flat pressure roller 51 is supported on the ground, the lead screw slide 61 is in a horizontal state.

[0071] When the operator begins to lay the free end of the roll material 7 onto the building surface, the control rope 63 lifts the screw slide 61, which rotates upward around the shaft 612. The flat pressure roller 51 is lifted along with the screw slide 61, moving away from the building surface until the operator wraps the roll material 7 around the flat pressure roller 51. The operator then lays the free end of the roll material 7 at the starting position on the building surface, and then controls the control rope 63 to lower the screw slide 61. The flat pressure roller 51 presses the roll material 7 onto the building surface, completing the initial preparation work.

[0072] See Figure 2 , Figure 4 and Figure 5 As shown, the guide roller 3 has a rotating shaft 31 rotatably connected to the trolley 1, and the lifting rope 63 is fixedly wound on the rotating shaft 31. The trolley 1 is equipped with a rotary motor 32 for driving the rotating shaft 31 to rotate. When the rotating shaft 31 rotates and winds up the lifting rope 63, the lead screw slide 61 and the flat pressure roller 51 are in a lifted state.

[0073] During the control of the hoisting rope 63, the rotating motor 32 drives the rotating shaft 31 to rotate. By controlling the rotation direction of the rotating shaft 31, the winding of the hoisting rope 63 is controlled, thereby controlling the action of the screw slide 61. When the screw slide 61 is kept horizontal with the building surface, the flat pressure roller 51 is in the state of pressing the roll material 7 onto the building surface.

[0074] See Figure 1 and Figure 3 As shown, a limiting member 21 is provided on both sides of the feeding roller 2 on the trolley 1. When the feeding roller 2 is between the two limiting members 21, the feeding roller 2 is in a fixed state.

[0075] When installing the roll material 7, the complete roll material 7 wound on the unwinding roller 2 is placed between the two limiting members 21. By controlling the two limiting members 21, the unwinding roller 2 is fixed between the two. When replacing the roll material 7, the two limiting members 21 are controlled to release the unwinding roller 2 and a new roll material 7 is replaced.

[0076] See Figure 11 As shown, a construction method for a building waterproof membrane construction device includes the following steps:

[0077] S1. Clean the building surface where waterproof membrane 7 needs to be laid.

[0078] S2, lay the free end of roll 7 at the starting point of the building surface to be covered;

[0079] S3, push the trolley 1 to move in a straight line, and lay the roll material 7 on the building surface under the pressure of the flat roller 51;

[0080] S4, the displacement mechanism 6 drives the flat pressure roller 51 to the position of the cutting tool 4 until the flat pressure roller 51 presses the roll material 7 against the corner surface of the wall.

[0081] S5, inflate the airbag 52 and compress the roll material 7 to fill the gap in the corner of the wall;

[0082] S6, by squeezing the roll 7, the pressure is applied to the cutting blade 4, causing the roll 7 to be cut.

[0083] The present invention promotes the rolling of the roll material 7 by pushing the trolley 1, which causes the flat roller 51 to roll the roll material 7, thus completing the laying of the building surface. After the flat roller 51 contacts the roll material 7 with the wall edge, the air bag 52 is ventilated, which squeezes the roll material 7 to be laid at the corner of the wall edge, so that the corner of the wall edge can be laid flat, improving the laying effect of the roll material 7, avoiding wrinkles when laying the roll material 7, and reducing the difficulty of laying the roll material 7 at the corner.

[0084] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A construction device for waterproof membrane, comprising a trolley (1), the trolley (1) being provided with a feeding roller (2) for placing the membrane (7), a guide roller (3) for guiding the membrane (7) to unfold, and a cutting tool (4); The axial direction of the feeding roller (2) is parallel to the axial direction of the guide roller (3); The cutting tool (4) is located on the side of the trolley (1) close to the feeding roller (2) and far away from the guide roller (3), and the length direction of the cutting tool (4) is parallel to the axial direction of the feeding roller (2). Its features are, The construction device also includes a laying mechanism (5) for automatically laying the roll material (7) on the ground as the trolley (1) moves. The laying mechanism (5) includes a flat roller (51) and an airbag (52). The flat roller (51) is set on the trolley (1). The flat roller (51) is located directly below the guide roller (3). The axial direction of the flat roller (51) is parallel to the axial direction of the guide roller (3). The flat roller (51) can move in the direction of the cutting tool (4). The airbag (52) is fitted on the flat roller (51). When the flat roller (51) moves to the corner of the wall and ventilates the airbag (52), the airbag (52) is in an inflated state and lays the roll material (7) flat at the corner of the wall in the form of compression. The trolley (1) is equipped with a displacement mechanism (6) for moving the flat roller (51); The flat roller (51) has a cavity, and a number of air holes (511) are opened on the surface of the flat roller (51). The two ends of the flat roller (51) are respectively opened with an air inlet (512) and an air outlet (513) communicating with the cavity. When the air inlet (512) is ventilated, the air outlet (513) is closed and the air bag (52) is inflated. When the air outlet (513) is ventilated, the air inlet (512) is closed and the air bag (52) is in normal condition. A heating wire (53) is provided in the cavity of the flat roller (51). The two ends of the heating wire (53) are fixedly connected to the two inner ends of the flat roller (51). When air is circulated into the cavity, the air is heated by passing through the heating wire (53).

2. The construction device for building waterproof membrane according to claim 1, characterized in that, The two ends of the airbag (52) are respectively covered on one end of the flat roller (51). Both ends of the flat roller (51) are provided with an end cap (521). Both ends of the airbag (52) are sealed and fixed to the end of the flat roller (51) through the end cap (521).

3. The construction device for building waterproof membrane according to claim 2, characterized in that, An arc-shaped baffle (54) is provided on the side of the flat pressure roller (51). The arc-shaped baffle (54) is located on the side of the flat pressure roller (51) away from the cutting tool (4). The arc-shaped baffle (54) is connected to the displacement mechanism (6). When the flat pressure roller (51) moves to the position of the cutting tool (4), the cutting tool (4) is in a state of pressing the roll material (7) against the surface of the arc-shaped baffle (54).

4. The building waterproof membrane construction device according to claim 3, characterized in that, The displacement mechanism (6) includes a lead screw slide (61), and there are two lead screw slides (61). The two lead screw slides (61) are symmetrically arranged at both ends of the flat pressure roller (51). Both lead screw slides (61) are connected to the trolley (1). Each lead screw slide (61) has a slider (611) sliding on it. Each end of the flat pressure roller (51) is fixedly fitted with a bearing (514). Each slider (611) is fixedly connected to the outer ring of the corresponding bearing (514).

5. The building waterproof membrane construction device according to claim 4, characterized in that, A shaft (612) extends outward from the end of the lead screw slide (61) near the cutting tool (4). A shaft bracket (62) for the shaft (612) is provided on the trolley (1). A suspension rope (63) is connected between the end of the lead screw slide (61) near the flat pressure roller (51) and the guide roller (3). When the flat pressure roller (51) is supported on the ground, the lead screw slide (61) is in a horizontal state.

6. The construction device for building waterproof membrane according to claim 5, characterized in that, The guide roller (3) has a rotating shaft (31) rotatably connected to the trolley (1). The lifting rope (63) is fixedly wound on the rotating shaft (31). The trolley (1) is equipped with a rotary motor (32) for driving the rotating shaft (31) to rotate. When the rotating shaft (31) rotates and winds up the lifting rope (63), the screw slide (61) and the flat pressure roller (51) are in a lifted state.

7. The construction device for waterproof membrane of a building according to claim 1, characterized in that, A limiting member (21) is provided on both sides of the feeding roller (2) on the trolley (1). When the feeding roller (2) is between the two limiting members (21), the feeding roller (2) is in a fixed state.

8. A construction method for a building waterproof membrane construction device, applied to the building waterproof membrane construction device according to any one of claims 1-7, characterized in that, Includes the following steps: S1, clean the building surface where waterproof membrane (7) needs to be laid; S2, lay the free end of the roll material (7) at the starting point of the building surface to be laid; S3, push the trolley (1) to move in a straight line and lay the roll material (7) on the building surface under the pressure of the flat roller (51); S4, the displacement mechanism (6) drives the flat pressure roller (51) to the position of the cutting knife (4) until the flat pressure roller (51) presses the roll material (7) against the corner surface; S5, inflate the airbag (52) and squeeze the roll material (7) to fill the gap in the corner of the wall; S6, by squeezing the roll (7), the pressure is applied to the cutting tool (4), causing the roll (7) to be cut.

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