A waterproofing membrane laying device for construction work
By designing a waterproof membrane laying device that integrates unwinding, tensioning, cutting, and compaction functions, the problems of low efficiency and poor cutting accuracy of existing equipment have been solved, achieving efficient and precise membrane laying and improving the quality and durability of waterproofing projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGJIAN GRP CO LTD JINAN BRANCH
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-19
AI Technical Summary
Existing waterproof membrane laying equipment is inefficient, labor-intensive, and has poor cutting precision, making it difficult to guarantee the flatness and tension of the membrane. Furthermore, it lacks adaptability, resulting in uneven laying quality, serious material waste, and weak adhesion, which affects the durability and reliability of waterproof projects.
A waterproof membrane laying device was designed, comprising an unwinding assembly, a frame, a mounting frame, a tensioning assembly, a cutting assembly, and a pressure roller assembly. The device uses a drive motor to unwind and pull the membrane, a tensioning roller to adjust the tension, a limit plate to prevent deviation, a cylinder to drive the blade for precise cutting, and a pressure roller assembly to compact the membrane. All components work together to ensure the flatness and accuracy of the laying.
It improves the efficiency and quality of waterproof membrane laying, ensures the flatness and cutting accuracy of the membrane, reduces material waste, enhances the adaptability and bonding strength of equipment, and improves the durability and reliability of waterproof projects.
Smart Images

Figure CN224379433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction equipment technology, and in particular to a waterproof membrane laying device for construction projects. Background Technology
[0002] In building waterproofing projects, the quality of waterproof membrane installation is crucial to the waterproofing performance of the building. Currently, traditional waterproof membrane installation mostly relies on manual operation, which is inefficient and labor-intensive. Workers need to manually unroll and cut the membrane, which is not only slow but also makes it difficult to ensure the flatness and tension of the membrane, resulting in inconsistent installation quality.
[0003] Even with simplified installation equipment used in some projects, numerous shortcomings remain. For example, existing equipment often relies on manual operation for cutting components, resulting in poor cutting accuracy, uneven edges, and increased material waste. Furthermore, the equipment lacks adaptability to different specifications of waterproof membrane rolls, failing to meet diverse construction needs. In addition, most equipment lacks robust compaction and positioning functions, leading to weak adhesion between the membrane and the substrate, easy edge curling, and internal air bubbles, reducing the durability and reliability of the waterproofing project. These problems urgently necessitate a highly efficient, precise, and adaptable waterproof membrane installation device. Utility Model Content
[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof membrane laying device for building engineering, comprising an unwinding assembly, a frame, an mounting frame, a tensioning assembly, and a cutting assembly. The mounting frame is disposed on the frame, the cutting assembly is disposed at the top of the mounting frame, the unwinding assembly is disposed on the side opposite to the cutting assembly, and the unwinding assembly is disposed on the frame; the tensioning assembly is disposed between the cutting assembly and the unwinding assembly, and the tensioning assembly is disposed on the mounting frame.
[0005] Preferably, the cutting assembly includes a cutting frame, a cylinder, a tool mounting bracket, and a blade. The cutting frame is disposed at the top of the mounting bracket, the cylinder is disposed at the top of the cutting frame, the tool mounting bracket is disposed at the bottom of the cutting frame, and the output end of the cylinder passes through the top of the cutting frame and is connected to the tool mounting bracket. The blade is disposed at the bottom of the tool mounting bracket.
[0006] Preferably, the cutting frame is provided with limit strips symmetrically on both sides, and the tool mounting frame is provided with limit grooves on both sides for use with the limit strips.
[0007] Preferably, the tensioning assembly includes a plurality of tensioning rollers, which are evenly arranged on the mounting frame.
[0008] Preferably, the unwinding assembly includes an unwinding shaft, two fixed frames, a drive motor, and a belt. The two fixed frames are symmetrically mounted on the frame. The drive motor is mounted on one of the fixed frames. The top of the fixed frame is provided with a U-shaped frame for use with the unwinding shaft. The bottom of the U-shaped frame is mounted with a rotating shaft. One end of the rotating shaft is provided with a gear, and the other end of the rotating shaft is provided with a pulley. The output end of the drive motor is provided with a pulley, and the pulley is rotatably connected to the pulley via a belt. The unwinding shaft is provided with a gear that meshes with the gear.
[0009] Preferably, a pressure roller assembly is provided at the rear end of the vehicle frame. The pressure roller assembly includes a pressure roller frame and a pressure roller 1 arranged symmetrically. The two sides of the pressure roller 1 are respectively rotatably mounted on the pressure roller frame via bearing seats.
[0010] Preferably, the front end of the cutting assembly is provided with a traction assembly, which is mounted on the mounting frame. The traction assembly includes a traction roller and a pressure roller. The two ends of the traction roller are mounted on the cutting frame via rotating shafts. A pulley is provided on the traction roller. A drive motor is provided on the mounting frame. A pulley is provided at the output end of the drive motor. The pulley is connected to the pulley via a belt.
[0011] Preferably, the front end of the traction assembly is symmetrically provided with limit plates.
[0012] Beneficial Effects: Compared with existing technologies, this invention, by setting a traction component between the cutting component and the pressure roller component, allows the waterproof membrane to pass through the traction component after being released from the unwinding component, its tension adjusted by the tensioning component, and then driven by the second drive motor of the traction component via the second belt to rotate the traction roller, actively pulling the membrane forward. The first drive motor of the unwinding component works synchronously to ensure stable membrane transport. During the traction process, the limiting plate at the front end of the traction component laterally limits the membrane to prevent deviation during laying. Simultaneously, multiple tensioning rollers of the tensioning component adjust the membrane tension in real time to avoid slackness or wrinkles. When the membrane is laid to the designated position, the cylinder of the cutting component drives the blade, using the precise guidance of the limiting strip and limiting groove to complete the cut. Finally, the pressure rollers of the pressure roller component compact the membrane. Throughout this process, the coordinated operation of all components ensures the flatness and accuracy of the waterproof membrane laying, effectively improving laying efficiency and project quality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a waterproof membrane laying device for building engineering according to the present invention.
[0014] Figure 2This is a schematic diagram of the cutting component of a waterproof membrane laying device for building engineering according to the present invention.
[0015] Figure 3 This is a partial structural diagram of the cutting component, tensioning component, and traction component of a waterproof membrane laying device for building engineering according to this utility model.
[0016] Figure 4 This is a partial structural diagram of the unwinding component of a waterproof membrane laying device for building engineering according to this utility model.
[0017] In the attached diagram: unwinding shaft 101, fixing frame 102, drive motor 103, belt 104, U-shaped frame 105, gear 106, pulley 107, pulley 2 108, gear 2 109, frame 2, mounting frame 3, tensioning assembly 4, cutting assembly 5, cutting frame 501, cylinder 502, tool mounting frame 503, blade 504, limiting strip 505, limiting groove 506, pressure roller frame 6, pressure roller 1 7, traction roller 8, pressure roller 2 9, pulley 3 10, drive motor 2 11, pulley 4 12, belt 2 13, limiting plate 14. Detailed Implementation
[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0019] Example
[0020] Please refer to the accompanying drawings in the specification. In this embodiment of the present invention, a waterproof membrane laying device for building engineering includes an unwinding assembly, a frame 2, an mounting frame 3, a tensioning assembly 4, and a cutting assembly 5. The mounting frame 3 is disposed on the frame 2, the cutting assembly 5 is disposed at the top of the mounting frame 3, the unwinding assembly is disposed on the side opposite to the cutting assembly 5, and the unwinding assembly is disposed on the frame 2; the tensioning assembly 4 is disposed between the cutting assembly 5 and the unwinding assembly, and the tensioning assembly 4 is disposed on the mounting frame 3.
[0021] The cutting assembly 5 includes a cutting frame 501, a cylinder 502, a tool mounting bracket 503, and a blade 504. The cutting frame 501 is located at the top of the mounting bracket 3, the cylinder 502 is located at the top of the cutting frame 501, the tool mounting bracket 503 is located at the bottom of the cutting frame 501, and the output end of the cylinder 502 passes through the top of the cutting frame 501 and is connected to the tool mounting bracket 503. The blade 504 is located at the bottom of the tool mounting bracket 503.
[0022] The cutting frame 501 is symmetrically provided with limit strips 505 on both sides, and the tool mounting frame 503 is provided with limit grooves 506 on both sides to cooperate with the limit strips 505.
[0023] The tensioning assembly 4 includes multiple tensioning rollers, which are evenly arranged on the mounting frame 3.
[0024] The unwinding assembly includes an unwinding shaft 101, two fixed frames 102, a drive motor 103, and a belt 104. The two fixed frames 102 are symmetrically mounted on the frame 2. The drive motor 103 is mounted on one of the fixed frames 102. The top of the fixed frame 102 is provided with a U-shaped frame 105 for use with the unwinding shaft 101. The bottom of the U-shaped frame 105 is provided with a rotating shaft. One end of the rotating shaft is provided with a gear 106, and the other end of the rotating shaft is provided with a pulley 107. The output end of the drive motor 103 is provided with a pulley 108, and the pulley 107 and the pulley 108 are rotatably connected by the belt 104. The unwinding shaft 101 is provided with a gear 109 for use with the gear 106, and the gear 106 and the gear 109 mesh with each other.
[0025] The rear end of the frame 2 is provided with a pressure roller assembly, which includes a pressure roller frame 6 and a pressure roller 7 arranged symmetrically. The two sides of the pressure roller 7 are respectively rotatably mounted on the pressure roller frame 6 through a bearing seat.
[0026] The cutting assembly 5 is provided with a traction assembly at its front end. The traction assembly is mounted on the mounting frame 3. The traction assembly includes a traction roller 8 and a pressure roller 9. The two ends of the traction roller 8 are mounted on the cutting frame 501 via rotating shafts. The traction roller 8 is provided with a pulley 10. The mounting frame 3 is provided with a drive motor 11. The output end of the drive motor 11 is provided with a pulley 12. The pulley 10 and the pulley 12 are connected by a belt 13.
[0027] Limiting plates 14 are symmetrically arranged at the front end of the traction assembly.
[0028] Working principle: First, the waterproof membrane is mounted on the unwinding shaft 101 of the unwinding assembly. The unwinding shaft 101 is stably supported by the U-shaped brackets 105 on the two fixing frames 102 to ensure that the membrane is securely installed. The drive motor 103 in the unwinding assembly 1 is turned on. The pulley 108 at the output end of the drive motor 103 drives the pulley 107 to rotate through the belt 104, which in turn causes the gear 106 on the shaft to rotate. The gear 109 meshing with the gear 106 drives the unwinding shaft 101 to rotate, starting to release the waterproof membrane. The waterproof membrane released from the unwinding assembly 1 enters the tensioning assembly 4 and travels around multiple evenly arranged tension rollers. The tension rollers apply tension to the membrane, adjusting the tightness of the membrane to ensure that the membrane is flat and avoids looseness or wrinkles. After tension adjustment, the membrane continues to move forward and enters the traction assembly. Drive motor 211 starts, and its output pulley 412 drives pulley 310 on traction roller 8 to rotate via belt 213. The friction generated by the rotation of traction roller 8 drives the roll material forward. At the same time, the limiting plate 14 at the front end of the traction assembly limits the two sides of the roll material to prevent it from deviating during transportation. When the roll material is transported to the required length, cutting assembly 5 starts working. Cylinder 502 at the top of cutting frame 501 starts, and the output end of cylinder 502 pushes the tool mounting frame 503 downward along the limiting strips 505 on both sides of the cutting frame 501. The blade 504 at the bottom of the tool mounting frame 503 then descends to cut the roll material. The limiting strips 505 cooperate with the limiting grooves 506 on both sides of the tool mounting frame 503 to ensure that the blade 504 descends vertically, achieving precise cutting.
[0029] In summary, this invention, by setting a traction component between the cutting component and the pressure roller component, allows the waterproof membrane to pass through the traction component after being released from the unwinding component, its tension adjusted by the tensioning component, and then driven by the second drive motor of the traction component via the second belt to rotate the traction roller, actively pulling the membrane forward. The first drive motor of the unwinding component works synchronously to ensure stable membrane transport. During the traction process, the limiting plate at the front end of the traction component laterally limits the membrane to prevent deviation during laying. Simultaneously, multiple tensioning rollers of the tensioning component adjust the membrane tension in real time to avoid slackness or wrinkles. When the membrane is laid to the designated position, the cylinder of the cutting component drives the blade, using the precise guidance of the limiting strip and limiting groove to complete the cut. Finally, the pressure rollers of the pressure roller component compact the membrane. Throughout this process, the coordinated operation of all components ensures the flatness and accuracy of the waterproof membrane laying, effectively improving laying efficiency and project quality.
[0030] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A waterproof membrane laying device for building engineering, characterized in that: The assembly includes an unwinding assembly, a frame (2), a mounting frame (3), a tensioning assembly (4), and a cutting assembly (5). The mounting frame (3) is mounted on the frame (2), the cutting assembly (5) is mounted at the top of the mounting frame (3), the unwinding assembly is mounted on the opposite side of the cutting assembly (5), and the unwinding assembly is mounted on the frame (2). The tensioning assembly (4) is mounted between the cutting assembly (5) and the unwinding assembly, and the tensioning assembly (4) is mounted on the mounting frame (3). The cutting assembly (5) includes a cutting frame (501), a cylinder (502), a tool mounting bracket (503), and a blade (504). The cutting frame (501) is located at the top of the mounting bracket (3). The cylinder (502) is located at the top of the cutting frame (501). The tool mounting bracket (503) is located at the bottom of the cutting frame (501). The output end of the cylinder (502) passes through the top of the cutting frame (501) and is connected to the tool mounting bracket (503). The blade (504) is located at the bottom of the tool mounting bracket (503).
2. The waterproof membrane laying device for building engineering according to claim 1, characterized in that: The cutting frame (501) is symmetrically provided with limit strips (505) on both sides, and the tool mounting frame (503) is provided with limit grooves (506) on both sides to cooperate with the limit strips (505).
3. The waterproof membrane laying device for building engineering according to claim 1, characterized in that: The tensioning assembly (4) includes multiple tensioning rollers, which are evenly arranged on the mounting frame (3).
4. The waterproof membrane laying device for building engineering according to claim 1, characterized in that: The unwinding assembly includes an unwinding shaft (101), two fixing brackets (102), a drive motor (103), and a belt (104). The two fixing brackets (102) are symmetrically mounted on the frame (2). The drive motor (103) is mounted on one of the fixing brackets (102). The top of the fixing bracket (102) is provided with a U-shaped frame (105) for use with the unwinding shaft (101). The bottom of the U-shaped frame (105) is equipped with a rotating shaft. One end of the shaft is provided with a gear 1 (106), the other end of the shaft is provided with a pulley 1 (107), the output end of the drive motor 1 (103) is provided with a pulley 2 (108), and the pulley 1 (107) and pulley 2 (108) are rotatably connected by a belt 1 (104). The unwinding shaft (101) is provided with a gear 2 (109) that works with the gear 1 (106), and the gear 1 (106) and gear 2 (109) mesh with each other.
5. The waterproof membrane laying device for building engineering according to claim 1, characterized in that: The rear end of the frame (2) is provided with a pressure roller assembly, which includes a pressure roller frame (6) and a pressure roller (7) arranged symmetrically. The two sides of the pressure roller (7) are respectively rotatably mounted on the pressure roller frame (6) through a bearing seat.
6. The waterproof membrane laying device for building engineering according to claim 1, characterized in that: The cutting assembly (5) is provided with a traction assembly at its front end. The traction assembly is provided on the mounting frame (3). The traction assembly includes a traction roller (8) and a pressure roller (9). The two ends of the traction roller (8) are provided on the cutting frame (501) through a rotating shaft. The traction roller (8) is provided with a pulley (10). The mounting frame (3) is provided with a drive motor (11). The output end of the drive motor (11) is provided with a pulley (12). The pulley (10) and the pulley (12) are connected by a belt (13).
7. The waterproof membrane laying device for building engineering according to claim 6, characterized in that: Limiting plates (14) are symmetrically arranged at the front end of the traction assembly.