A waterproof board construction trolley and a construction method

Abstract

The application relates to a waterproof board construction trolley and a construction method, and relates to the field of inverted arch construction technology. The trolley comprises a rack, a first traction mechanism, a second traction mechanism and a feeding mechanism. The rack is fixedly installed with guide rails. The first traction mechanism comprises a first fixed table and a moving assembly for driving the first fixed table to move on the guide rails. The second traction mechanism comprises a second fixed table, a roller and a connecting rod. The roller is connected to the guide rails of the rack in a rolling mode. The roller is rotationally connected to the second fixed table. The second fixed table moves on the guide rails through the roller. The first end of the connecting rod is hingedly connected to the second fixed table, and the second end is hingedly connected to the first fixed table. A nail gun or a hot melting gun is detachably and fixedly installed on the second fixed table. The feeding mechanism comprises a first feeding roller and a first feeding frame. The first feeding frame is fixedly installed on the first fixed table. The first feeding roller is rotationally installed on the first feeding frame. The application can improve the quality of waterproof board laying construction and the convenience of construction.

Description

Technical Field

[0001] This invention relates to the field of invert arch construction technology, and in particular to a waterproof membrane construction trolley and construction method. Background Technology

[0002] In waterproofing construction of tunnels and underground projects, the laying and fixing of waterproof membranes is a key step in ensuring structural waterproofing.

[0003] Traditional waterproofing membrane installation typically relies on manual labor, requiring 4 to 6 workers to lay each membrane. During installation, workers must use hand-held nail guns or hot air welding guns to fix and weld the membrane, which is not only labor-intensive and inefficient but also poses safety hazards. Furthermore, manual operation makes it difficult to ensure the uniformity and consistency of the membrane's application, easily leading to problems such as loosening, wrinkling, or localized damage, severely affecting the overall quality and durability of the waterproofing layer.

[0004] Currently, a Chinese invention patent with publication number CN110486058B and publication date of November 22, 2019, proposes a construction method for a tunnel wide-width waterproof membrane and secondary lining reinforcement integrated trolley method. The method includes: pre-construction preparation, geotextile hanging, waterproof membrane laying, fixing and welding, and overall installation of secondary lining reinforcement. It utilizes ultrasonic welding fixing technology and vertical extrusion welding technology, combined with three-dimensional data acquisition and computer positioning for construction. In this method, the crawling trolley of the waterproof membrane laying trolley is activated to place the geotextile, and the jacking system of the waterproof membrane laying trolley is activated to lift the geotextile to the initial support surface.

[0005] In response to the aforementioned technologies, crawling trolleys for transporting geotextiles have been installed. However, these trolleys only assist in transporting the geotextiles; the geotextiles and waterproofing membranes still require manual positioning and fixing by workers. Furthermore, when the crawling trolleys are moving and being fixed by workers, the geotextiles or waterproofing membranes are prone to displacement, making it difficult to ensure uniformity and consistency during the application of the waterproofing membranes. This can easily lead to problems such as loosening, wrinkling, or localized damage to the waterproofing membranes. Summary of the Invention

[0006] To improve the quality and convenience of waterproof membrane installation, this invention provides a waterproof membrane installation trolley and installation method.

[0007] In a first aspect, the present invention provides a waterproof membrane construction trolley, which adopts the following technical solution: A waterproof membrane construction trolley includes a frame, a first traction mechanism, a second traction mechanism, and a loading mechanism. A guide rail is fixedly installed on the frame. The first traction mechanism includes a first fixed platform and a moving component that drives the first fixed platform to move on the guide rail. The second traction mechanism includes a second fixed platform, a roller, and a connecting rod. The roller is rolled on the guide rail of the platform and rotatably connected to the second fixed platform. The second fixed platform moves on the guide rail via the roller. The first end of the connecting rod is hinged to the second fixed platform, and the second end is hinged to the first fixed platform. A nail gun or a hot melt gun is detachably and fixedly installed on the second fixing platform; The feeding mechanism includes a first feeding roller and a first feeding frame. The first feeding frame is fixedly installed on the first fixed platform, and the first feeding roller is rotatably installed on the first feeding frame.

[0008] Preferably, the moving assembly includes a moving frame, moving wheels, connecting seats, a transmission belt, and a take-up roller. Two moving frames are fixedly installed at opposite ends of the first fixed platform. Two moving wheels are rotatably installed at the bottom of the moving frame and are rolledly connected to the guide rail. Two connecting seats are rotatably connected to opposite sides of the moving frame. Two take-up rollers are rotatably installed to opposite sides of the platform. The first end of the transmission belt is fixedly connected to the connecting seat, and the other end of the transmission belt is wound into the take-up roller.

[0009] Preferably, the moving component further includes position sensors, a plurality of position sensors are fixedly mounted on the guide rail, the position sensors are electrically connected to a control terminal, and the control terminal is electrically connected to the nail gun or the hot melt gun.

[0010] Preferably, two first feeding racks are fixedly installed on the first fixed platform, and one first feeding roller is rotatably installed on each first feeding rack; The feeding mechanism further includes a second feeding roller and a second feeding frame. The second feeding frame is fixedly installed on the first feeding frame, and the second feeding roller is rotatably installed on the second feeding frame.

[0011] Preferably, the feeding mechanism further includes a feeding guide roller and a top frame, the top frame being fixedly installed on the first fixed platform, and the feeding guide roller being rotatably installed on the top frame.

[0012] Preferably, the feeding mechanism further includes a climbing welding machine, and two climbing welding machines are fixedly installed on the first fixed platform.

[0013] Preferably, a fixing mechanism is provided on the second fixing platform. The fixing mechanism includes an abutment frame and an abutment roller. The bottom end of the abutment frame is fixedly installed on the second fixing platform, and the abutment roller is rotatably installed on the second fixing platform.

[0014] Preferably, the fixing mechanism further includes a feeder, which includes a storage box, an elastic element, a retainer, a push plate, and a first electric push cylinder. The storage box is detachably and fixedly installed on the nail gun body. The retainer is fixedly installed at one end of the storage box and has a discharge port located above the firing port of the nail gun. One end of the elastic element is fixedly installed inside the storage box. The push plate is slidably installed inside the storage box near the retainer. The first electric push cylinder is fixedly installed on the storage box, and the push rod of the first electric push cylinder is fixedly connected to the push plate.

[0015] Preferably, the fixing mechanism further includes a welding assembly, which includes a fixing clamp, a second electric push cylinder, and a guide rod. A plurality of the guide rods are detachably fixedly mounted on the second fixing platform. The fixing clamp is slidably mounted on the guide rod. The hot melt gun is fixedly mounted on the fixing clamp. The second electric push cylinder is fixedly mounted on the guide rod. The push rod of the second electric push cylinder is fixedly connected to the fixing clamp.

[0016] Secondly, the present invention provides a method for constructing a waterproof membrane, which adopts the following technical solution: A method for constructing a waterproof membrane includes a waterproof construction trolley as described in the first aspect, and the following steps: Geotextile feeding and initial fixing: The whole roll of geotextile is placed on the first feeding roller and unfolded. Its starting end is laid to the designed starting position at the bottom of the initial support surface of the invert arch, and the starting end of the geotextile is anchored to the initial support surface of the invert arch using a nail gun. Continuous laying of geotextile: Drive the winding roller on one side to rotate actively, driving the transmission belt to move, while the winding roller on the other side releases the transmission belt synchronously, thereby pulling the two moving frames to move synchronously towards each other or in the same direction along the guide rail; The moving frames drive the first fixed platform to move synchronously, thereby pulling the geotextile on the first feeding roller to continuously unfold and cover the surface of the initial support surface of the invert arch. Geotextile anchoring: The second fixing platform moves synchronously with the first fixing platform via a connecting rod; the position sensor detects the current position of the nail gun in real time and transmits the signal to the control terminal; the control terminal triggers the nail gun to operate according to the preset anchoring distance, driving the nail gun to penetrate the geotextile with the hot melt pad and nail it into the initial support surface of the invert arch, thereby realizing the segmented fixed-point fixing of the geotextile; Waterproof membrane loading and initial fixing: After the geotextile is laid, the entire roll of waterproof membrane is placed on the same or replaced first loading roller; unfold the waterproof membrane, align its starting end with the hot melt pad on the fixed starting end of the geotextile, and use a hot melt gun to heat melt and bond the waterproof membrane to it, thus completing the initial fixing. Continuous laying of waterproof membrane: The transmission belt drive method in the continuous laying step of geotextile is repeated, so that the moving frame drives the first fixed platform to move, thereby pulling the waterproof membrane from the first feeding roller to continuously unfold and cover the surface of the laid geotextile. Waterproof membrane hot-melt fixing: The second fixing platform moves forward synchronously with the first fixing platform; based on the feedback from the position sensor, the control terminal controls the extension and retraction of the first electric actuator when it reaches the preset fixing point, pushing the hot-melt head of the hot-melt gun to precisely align and press the hot-melt pad located on the geotextile; through heating, the hot-melt pad and the waterproof membrane are fused together, and after cooling, a firm connection is formed, realizing the point-to-point fixing of the waterproof membrane; as the trolley continues to advance, the laying and fixing of the waterproof membrane in the entire section is completed.

[0017] In summary, the present invention has at least one of the following beneficial technical effects: 1. This system enables segmented and fixed-point fixing of geotextiles, significantly reducing the labor intensity of manual geotextile fixing by multiple workers and automating the process. By heating, the hot-melt gasket and waterproof membrane are fused together, forming a strong connection after cooling, thus achieving point-by-point fixing of the waterproof membrane. Automatic welding fixing of the waterproof membrane is also achieved. On the second fixing platform, both a nail gun and a hot-melt gun can be installed simultaneously, reducing disassembly and replacement time.

[0018] 2. The position sensor can accurately locate the position of the second fixing platform, and the control terminal triggers the nail launching or hot-melt action accordingly, realizing the precision and programmability of the fixing point, completely avoiding the error of manual positioning, ensuring the uniformity of the spacing of the hot-melt pads, and greatly improving the construction quality and efficiency.

[0019] 3. When placing geotextile or waterproof membrane (hereinafter referred to as "material board"), the material boards pulled out from the first and second material boards have a portion overlapping each other, so that the three material boards can be laid and fixed at the same time, which improves the laying and fixing efficiency, increases the construction speed, avoids the waste of time replacing materials, and doubles the construction efficiency.

[0020] 4. The material plate is conveyed on the abutment roller, which makes the material plate fit more closely to the surface of the initial support of the invert arch, so as to facilitate the fixing of the material plate, reduce the gap distance between the material plate and the initial support surface during the fixing process, reduce the fixing error, and improve the fixing stability and fixing quality.

[0021] 5. During the firing of the nail by the nail gun, the hot melt pad is inserted and fixed on the geotextile. The automatic feeding of the hot melt pad is completed in one cycle.

[0022] 6. By controlling the advancement, pressing, and withdrawal of the hot melt gun through the second electric push cylinder and guide rod, the mechanization, precision, and pressure control of the hot melt operation are realized, making the heating temperature, pressure, and action time of each weld point as consistent as possible, thereby improving the welding strength and sealing performance of the weld point. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a partially enlarged schematic diagram of the first traction mechanism; Figure 4 This is a schematic diagram of the second traction mechanism; Figure 5 This is a schematic diagram of the feeding mechanism; Figure 6 This is a schematic diagram of the feeder structure; Figure 7 yes Figure 6 A cross-sectional view.

[0024] Explanation of reference numerals in the attached drawings: 100, First traction mechanism; 110, First fixed platform; 120, Moving component; 121, Moving frame; 122, Moving wheel; 123, Connecting seat; 124, Taking-up roller; 125, Position sensor; 126, Guide wheel; 127, Transmission belt; 128, Control terminal; 200, Second traction mechanism; 210, Second fixed platform; 220, Roller; 230, Connecting rod; 300, Feeding mechanism; 310, First feeding roller; 320, First feeding frame; 330, Second feeding frame; 340. Second feeding roller; 350. Feeding guide roller; 360. Top frame; 370. Climbing welding machine; 400. Platform; 500. Fixing mechanism; 510. Abutment frame; 520. Abutment roller; 530. Feeder; 531. Storage box; 532. Elastic element; 533. Card holder; 534. Push plate; 535. First electric push cylinder; 536. Discharge port; 540. Welding assembly; 541. Fixed clamp; 542. Second electric push cylinder; 543. Guide rod; 600. Guide rail; 700. Hot melt gun; 800. Nail gun. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0030] Example 1: This invention discloses a waterproof membrane construction trolley. (Refer to...) Figures 1 to 7A waterproof membrane construction trolley mainly includes a frame 400, a first traction mechanism 100, a second traction mechanism 200, and a loading mechanism 300. A guide rail 600 is fixedly installed on the frame 400. The first traction mechanism 100 includes a first fixed platform 110 and a moving component 120 that drives the first fixed platform 110 to move on the guide rail 600. The second traction mechanism 200 includes a second fixed platform 210, rollers 220, and a connecting rod 230. The rollers 220 are rolled on the guide rail 600 of the frame 400. The rollers 220 are connected to the first fixed platform 210, rollers 220, and connecting rods 230. Two fixed platforms 210 are rotatably connected. The second fixed platform 210 moves on the guide rail 600 via rollers 220. The first end of the connecting rod 230 is hinged to the second fixed platform 210, and the second end is hinged to the first fixed platform 110. A nail gun 800 or a hot melt gun 700 is detachably fixedly installed on the second fixed platform 210. The feeding mechanism 300 includes a first feeding roller 310 and a first feeding frame 320. The first feeding frame 320 is fixedly installed on the first fixed platform 110, and the first feeding roller 310 is rotatably installed on the first feeding frame 320.

[0031] When fixing the geotextile, the entire roll of geotextile is placed on the first feeding roller 310 and unfolded. Its starting end is laid to the designed starting position at the bottom of the initial support surface of the invert arch. The starting end of the geotextile is then anchored to the initial support surface of the invert arch using a nail gun 800 with nails equipped with hot-melt pads. The moving component 120 moves on the guide rail 600, pulling the geotextile on the first feeding roller 310 to continuously unfold and cover the surface of the initial support surface of the invert arch. The second fixing platform 210 moves synchronously with the first fixing platform 110 through the connecting rod 230. According to the fixing requirements, at the preset fixing point, the nail gun 800 is driven to penetrate the hot-melt pads through the geotextile and nail them into the initial support surface of the invert arch. This achieves segmented fixed-point fixing of the geotextile, greatly saving the labor intensity of manually fixing the geotextile by multiple workers and realizing the automation of geotextile fixing.

[0032] After the geotextile is laid, the entire roll of waterproof membrane is placed on the same or replaced first feeding roller 310; the waterproof membrane is unfolded, and its starting end is aligned with the hot-melt pad on the fixed starting end of the geotextile. The hot-melt gun 700 is used to hot-melt bond the waterproof membrane to the hot-melt pad, completing the starting end fixation; the moving component 120 drives the first fixing platform 110 to move, thereby pulling the waterproof membrane from the first feeding roller 310 to continuously unfold and cover the surface of the laid geotextile. The hot-melt head of the hot-melt gun 700 precisely aligns with and presses the hot-melt pad on the geotextile; the hot-melt pad and the waterproof membrane are fused together by heating, and after cooling, a firm connection is formed, realizing the point-to-point fixation of the waterproof membrane. Automatic welding and fixing of the waterproof membrane is achieved; on the second fixing platform 210, a nail gun 800 and a hot-melt gun 700 can be installed simultaneously, reducing the time for disassembly and replacement.

[0033] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the moving assembly 120 includes a moving frame 121, moving wheels 122, connecting seats 123, a transmission belt 127, and a take-up roller 124. Two moving frames 121 are fixedly mounted at both ends of the first fixed platform 110. Two moving wheels 122 are rotatably mounted at the bottom of the moving frame 121 and are rolledly connected to the guide rail 600. Two connecting seats 123 are rotatably connected to both sides of the moving frame 121. Two take-up rollers 124 are rotatably mounted to both sides of the platform 400. The first end of the transmission belt 127 is fixedly connected to the connecting seat 123, and the other end of the transmission belt 127 is wound inside the take-up roller 124. Using a hand crank or motor drive, one of the take-up rollers 124 is driven to rotate actively, which drives the transmission belt 127 to move. The other take-up roller 124 releases the transmission belt 127 simultaneously, thereby pulling the two moving frames 121 to move synchronously towards each other or in the same direction along the guide rail 600. The moving frames 121 drive the first fixed platform 110 to move synchronously, thereby pulling the geotextile on the first feeding roller 310 to continuously unfold and cover the surface of the initial support surface of the invert arch, or pulling the waterproof membrane on the first feeding roller 310 to continuously unfold and cover the geotextile. This allows the first fixed platform 110 to move smoothly and linearly, thereby ensuring the smoothness of the geotextile or waterproof membrane laying and avoiding wrinkles or deviations.

[0034] Reference Figure 3 In some embodiments, the moving component 120 further includes position sensors 125. Multiple position sensors 125 are fixedly mounted on the guide rail 600. The position sensors 125 are electrically connected to the control terminal 128, which in turn is electrically connected to the nail gun 800 or the hot melt gun 700. The position sensors 125 can accurately locate the position of the second fixing platform 210. Based on this, the control terminal 128 triggers the nail firing or hot melt action, achieving precise and programmed fixing point positioning, completely avoiding errors from manual positioning, ensuring uniform spacing of the hot melt pads, and greatly improving construction quality and efficiency.

[0035] Reference Figure 1 , Figure 2 and Figure 3In some embodiments, the moving assembly 120 further includes guide wheels 126, a plurality of guide wheels 126 being rotatably mounted on the guide rail 600, with the transmission belt 127 in rolling contact with the guide wheels 126. The guide wheels 126 convert the sliding friction between the transmission belt 127 and the guide rail 600 into rolling friction. The resistance of rolling friction is much less than that of sliding friction, which greatly reduces the wear of the transmission belt 127 during movement, effectively preventing problems such as cracking, fraying, or even breakage of the transmission belt 127 due to excessive wear, thereby significantly extending the service life of the transmission belt 127 and reducing maintenance and replacement costs. The smooth rolling contact avoids the "jamming" or "jumping" phenomenon caused by uneven friction of the transmission belt 127, ensuring that the first fixed platform 110 and the second fixed platform 210 can move smoothly and at a uniform speed.

[0036] Reference Figure 5 In some embodiments, two first feeding racks 320 are fixedly mounted on the first fixed platform 110, and a first feeding roller 310 is rotatably mounted on each first feeding rack 320. The feeding mechanism 300 also includes a second feeding roller 340 and a second feeding rack 330. The second feeding rack 330 is fixedly mounted on the first feeding rack 320, and the second feeding roller 340 is rotatably mounted on the second feeding rack 330. When placing geotextile or waterproof membrane (hereinafter referred to as "material plate"), the material plates pulled out from the feeding plates on the first feeding rack 320 and the second feeding rack 330 partially overlap each other, enabling the three material plates to be laid and fixed simultaneously, improving laying and fixing efficiency, increasing construction speed, avoiding the waste of time replacing materials, and doubling construction efficiency.

[0037] Reference Figure 2 In some embodiments, the feeding mechanism 300 further includes a feeding guide roller 350 and a top frame 360. The top frame 360 ​​is fixedly mounted on the first fixed platform 110, and the feeding guide roller 350 is rotatably mounted on the top frame 360. The material plate pulled out from the first feeding roller 310 or the second feeding roller 340 contacts and rolls with the feeding guide roller 350. The material plate is stably guided by the feeding guide roller 350, which improves the stability of the material plate during the conveying process.

[0038] Reference Figure 5 In some embodiments, the feeding mechanism 300 further includes a climbing welder 370, with two climbing welders 370 fixedly mounted on the first fixed platform 110. When fixing the waterproof membrane, the welding head on the climbing welder 370 contacts the overlapping portion between the two waterproof membranes. As the waterproof membranes move continuously, the climbing welder 370 welds the two adjacent waterproof membranes together, reducing the number of subsequent welding steps for workers, alleviating the labor intensity of the workers, and further improving the automation level of the device.

[0039] Reference Figure 4In some embodiments, a fixing mechanism 500 is provided on the second fixing platform 210. The fixing mechanism 500 includes an abutment frame 510 and an abutment roller 520. The bottom end of the abutment frame 510 is fixedly installed on the second fixing platform 210, and the abutment roller 520 is rotatably installed on the second fixing platform 210. The material plate on the feeding guide roller 350 is conveyed onto the abutment roller 520. The abutment roller 520 is supported by the abutment frame 510. The height of the abutment frame 510 is adjustable according to the distance from the initial support surface of the invert arch. The material plate is conveyed on the abutment roller 520, making the material plate fit more closely to the initial support surface of the invert arch, so as to facilitate the fixing of the material plate, reduce the gap distance between the material plate and the initial support surface during the fixing process, reduce the fixing error, and improve the fixing stability and fixing quality.

[0040] Reference Figures 4 to 7 In some embodiments, the fixing mechanism 500 further includes a feeder 530, which includes a storage box 531, an elastic element 532, a card holder 533, a push plate 534, and a first electric push cylinder 535. The first electric push cylinder 535 is connected to the control terminal 128 by means of a wire or wireless connection. The storage box 531 is detachably and fixedly installed on the body of the nail gun 800. The card holder 533 is fixedly installed at one end of the storage box 531. The card holder 533 has a discharge port 536, which is located above the firing port of the nail gun 800. One end of the elastic element 532 is fixedly installed inside the storage box 531. The push plate 534 is slidably installed inside the storage box 531 near the card holder 533. The first electric push cylinder 535 is fixedly installed on the storage box 531, and the push rod of the first electric push cylinder 535 is fixedly connected to the push plate 534. When using a nail gun 800 to fix geotextile, after reaching the fixed point, the control terminal 128 uses an electrical signal to control the extension and retraction of the first electric push cylinder 535, causing the push plate 534 to push out one of the hot melt pads and push it into the card holder 533. During the firing of the nail by the nail gun 800, the hot melt pad is pierced and fixed to the geotextile. The automatic feeding of the hot melt pads is completed in one cycle. The hot melt pads are moved to the pushing position of the push plate 534 in sequence by the elastic force of the elastic element 532. The automatic continuous supply of hot melt pads is realized, eliminating the trouble of frequent manual filling, which is especially suitable for the high-altitude operation environment in tunnels.

[0041] Reference Figure 4In some embodiments, the fixing mechanism 500 further includes a welding assembly 540, which includes a fixed clamping platform 541, a second electric pusher cylinder 542, and guide rods 543. Multiple guide rods 543 are detachably fixedly mounted on the second fixed platform 210. The fixed clamping platform 541 is slidably mounted on the guide rods 543. The hot melt gun 700 is fixedly mounted on the fixed clamping platform 541, and the second electric pusher cylinder 542 is fixedly mounted on the guide rods 543. The push rod of the second electric pusher cylinder 542 is fixedly connected to the fixed clamping platform 541. By controlling the advancement, clamping, and retraction of the hot melt gun 700 through the second electric pusher cylinder 542 and the guide rods 543, the mechanization, precision, and pressure control of the hot melt operation are achieved, ensuring that the heating temperature, pressure, and action time of each weld point are as consistent as possible, thereby improving the welding strength and sealing performance of all weld points.

[0042] The implementation principle of a waterproof membrane construction trolley according to an embodiment of the present invention is as follows: By integrating a nail gun 800 and a hot melt gun 700, automatic segmented and fixed-point fixation of geotextile and automatic welding fixation of waterproof membrane are achieved, significantly saving labor and reducing tool switching time. Relying on position sensor 125 and control terminal 128, precise programmed control of fixed points is achieved, avoiding human error and ensuring uniform spacing of gaskets and construction quality. The design of simultaneous laying and overlapping fixation of multiple rolls of material greatly improves laying efficiency. The conveying mechanism of abutment roller 520 ensures that the material is closely attached to the base surface, reducing fixing errors and improving stability. The nail gun 800 integrates an automatic feeding mechanism, enabling the hot melt gasket to be inserted and fixed in one cycle, improving the fixing efficiency of geotextile or waterproof membrane.

[0043] Example 2: This invention discloses a method for constructing a waterproof membrane. The method mainly includes the waterproof membrane construction trolley as shown in Example 1, and the following steps: S1: Geotextile feeding and initial fixing: The whole roll of geotextile is placed on the first feeding roller 310 and unfolded. Its starting end is laid to the design starting position at the bottom of the initial support surface of the invert arch, and the starting end of the geotextile is anchored to the initial support surface of the invert arch by using a nail gun 800. S2: Continuous laying of geotextile: Drive the winding roller 124 on one side to rotate actively, driving the transmission belt 127 to move. The winding roller 124 on the other side releases the transmission belt 127 simultaneously, thereby pulling the two moving frames 121 to move synchronously towards each other or in the same direction along the guide rail 600. The moving frames 121 drive the first fixed platform 110 to move synchronously, thereby pulling the geotextile on the first feeding roller 310 to continuously unfold and cover the surface of the initial support surface of the invert arch. S3: Geotextile anchoring: The second fixing platform 210 moves synchronously with the first fixing platform 110 via the connecting rod 230; the position sensor 125 detects the current position of the nail gun 800 in real time and transmits the signal to the control terminal 128; the control terminal 128 triggers the nail gun 800 to operate according to the preset anchoring spacing, driving the nail gun 800 to penetrate the geotextile with the hot melt pad and nail it into the initial support surface of the invert arch, thereby realizing the segmented fixed-point fixing of the geotextile; S4: Waterproof membrane loading and initial fixing: After the geotextile is laid, the entire roll of waterproof membrane is placed on the same or replaced first loading roller 310; unfold the waterproof membrane, align its starting end with the hot melt pad on the fixed starting end of the geotextile, and use the hot melt gun 700 to hot melt bond the waterproof membrane to the hot melt pad to complete the initial fixing. S5: Continuous laying of waterproof membrane: The transmission belt 127 driving mode in the continuous laying step of geotextile is repeated, so that the moving frame 121 drives the first fixed platform 110 to move, thereby pulling the waterproof membrane from the first feeding roller 310 to continuously unfold and cover the surface of the laid geotextile. S6: Waterproof membrane hot-melt fixing: The second fixing platform 210 moves forward synchronously with the first fixing platform 110; the control terminal 128, based on the feedback from the position sensor 125, controls the extension and retraction of the first electric push rod when the preset fixing point is reached, pushing the hot-melt head of the hot-melt gun 700 to precisely align and press the hot-melt pad located on the geotextile; the hot-melt pad and the waterproof membrane are fused together by heating, and a firm connection is formed after cooling, realizing the point-to-point fixing of the waterproof membrane; as the trolley continues to advance, the waterproof membrane laying and fixing operation of the entire section is completed.

[0044] It reduces the skill requirements and labor intensity for workers, while the precision of mechanical operation improves the overall quality and consistency of waterproofing construction, thus enhancing the reliability of tunnel waterproofing.

[0045] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A waterproof board construction trolley, characterized in that: It includes a platform (400), a first traction mechanism (100), a second traction mechanism (200), and a feeding mechanism (300). A guide rail (600) is fixedly installed on the platform (400). The first traction mechanism (100) includes a first fixed platform (110) and a moving component (120) that drives the first fixed platform (110) to move on the guide rail (600). The second traction mechanism (200) includes a second fixed platform (210), a roller (220) and a connecting rod (230). The roller (220) is rolled on the guide rail (600) of the platform (400). The roller (220) is rotatably connected to the second fixed platform (210). The second fixed platform (210) moves on the guide rail (600) through the roller (220). The first end of the connecting rod (230) is hinged to the second fixed platform (210), and the second end is hinged to the first fixed platform (110). A nail gun (800) or a hot melt gun (700) is detachably fixed on the second fixed platform (210). The feeding mechanism (300) includes a first feeding roller (310) and a first feeding frame (320). The first feeding frame (320) is fixedly installed on the first fixed platform (110), and the first feeding roller (310) is rotatably installed on the first feeding frame (320). The second fixed platform (210) is provided with a fixing mechanism (500), the fixing mechanism (500) includes an abutment frame (510) and an abutment roller (520), the bottom end of the abutment frame (510) is fixedly installed on the second fixed platform (210), and the abutment roller (520) is rotatably installed on the second fixed platform (210); The fixing mechanism (500) also includes a feeder (530), which includes a storage box (531), an elastic element (532), a mounting bracket (533), a push plate (534), and a first electric push cylinder (535). The storage box (531) is detachably and fixedly installed on the body of the nail gun (800). The mounting bracket (533) is fixedly installed at one end of the storage box (531), and a discharge port (536) is provided on the mounting bracket (533). The discharge port (536) is located above the firing port of the nail gun (800). One end of the elastic element (532) is fixedly installed inside the storage box (531). The push plate (534) is slidably installed inside the storage box (531) near the card seat (533). The first electric push cylinder (535) is fixedly installed on the storage box (531). The push rod of the first electric push cylinder (535) is fixedly connected to the push plate (534).

2. The waterproof board construction trolley according to claim 1, characterized in that: The moving assembly (120) includes a moving frame (121), moving wheels (122), connecting seats (123), a transmission belt (127), and a take-up roller (124). Two moving frames (121) are fixedly installed at both ends of the first fixed platform (110). Two moving wheels (122) are rotatably installed at the bottom of the moving frame (121). The moving wheels (122) are rotatably connected to the guide rail (600). Two connecting seats (123) are rotatably connected to both sides of the moving frame (121). The connecting seats (123) are located between the two moving frames (121). Two take-up rollers (124) are rotatably installed on both sides of the platform (400). The first end of the transmission belt (127) is fixedly connected to the connecting seat (123), and the other end of the transmission belt (127) is wound into the take-up roller (124).

3. The waterproof board construction trolley according to claim 2, characterized in that: The moving component (120) also includes a position sensor (125), a plurality of the position sensors (125) are fixedly mounted on the guide rail (600), the position sensors (125) are electrically connected to a control terminal (128), and the control terminal (128) is electrically connected to the nail gun (800) or the hot melt gun (700).

4. The waterproof membrane construction trolley according to claim 3, characterized in that: Two first feeding racks (320) are fixedly installed on the first fixed platform (110), and one first feeding roller (310) is rotatably installed on one of the first feeding racks (320). The feeding mechanism (300) further includes a second feeding roller (340) and a second feeding frame (330), the second feeding frame (330) being fixedly installed on the first feeding frame (320), and the second feeding roller (340) being rotatably installed on the second feeding frame (330).

5. The waterproof membrane construction trolley according to claim 4, characterized in that: The feeding mechanism (300) further includes a feeding guide roller (350) and a top frame (360). The top frame (360) is fixedly installed on the first fixed platform (110), and the feeding guide roller (350) is rotatably installed on the top frame (360).

6. The waterproof membrane construction trolley according to claim 5, characterized in that: The feeding mechanism (300) also includes a climbing welding machine (370), and two climbing welding machines (370) are fixedly installed on the first fixed platform (110).

7. The waterproof membrane construction trolley according to claim 3, characterized in that: The fixing mechanism (500) further includes a welding assembly (540), which includes a fixing clamp (541), a second electric push cylinder (542), and a guide rod (543). A plurality of the guide rods (543) are detachably fixedly installed on the second fixing platform (210). The fixing clamp (541) is slidably installed on the guide rod (543). The hot melt gun (700) is fixedly installed on the fixing clamp (541). The second electric push cylinder (542) is fixedly installed on the guide rod (543). The push rod of the second electric push cylinder (542) is fixedly connected to the fixing clamp (541).

8. A method for constructing a waterproof membrane, characterized in that: Includes the waterproof membrane construction trolley as described in claim 7, and the following steps: Geotextile feeding and initial fixing: The whole roll of geotextile is placed on the first feeding roller (310) and unfolded. Its starting end is laid to the design starting position at the bottom of the initial support surface of the invert arch, and the starting end of the geotextile is anchored to the initial support surface of the invert arch by the nail gun (800). Continuous laying of geotextile: The winding roller (124) on one side is driven to rotate actively, which drives the transmission belt (127) to move. The winding roller (124) on the other side releases the transmission belt (127) simultaneously, thereby pulling the two moving frames (121) to move synchronously towards each other or in the same direction along the guide rail (600). The moving frame (121) drives the first fixed platform (110) to move synchronously, thereby pulling the geotextile on the first feeding roller (310) to continuously unfold and cover the surface of the initial support surface of the invert arch. Geotextile anchoring: The second fixing platform (210) moves synchronously with the first fixing platform (110) via the connecting rod (230); the position sensor (125) detects the current position of the nail gun (800) in real time and transmits the signal to the control terminal (128); the control terminal (128) triggers the nail gun (800) to act according to the preset anchoring spacing, and drives the nail gun (800) to penetrate the geotextile with the hot melt pad and nail it into the initial support surface of the invert arch, so as to realize the segmented fixed-point fixation of the geotextile; Waterproof membrane loading and initial fixing: After the geotextile is laid, the entire roll of waterproof membrane is placed on the same or replaced first loading roller (310); Unfold the waterproof membrane, align its starting end with the hot melt pad on the fixed starting end of the geotextile, and use the hot melt gun (700) to hot melt and bond the waterproof membrane to it to complete the fixing of the starting end; Continuous laying of waterproof membrane: The transmission belt (127) driving method in the continuous laying step of geotextile is repeated, so that the moving frame (121) drives the first fixed platform (110) to move, thereby pulling the waterproof membrane from the first feeding roller (310) to continuously unfold and cover the surface of the laid geotextile. Waterproof membrane hot-melt fixing: The second fixing platform (210) moves forward synchronously with the first fixing platform (110); the control terminal (128) controls the extension and retraction of the second electric push cylinder (542) when the preset fixing point is reached according to the feedback of the position sensor (125), pushing the hot-melt head of the hot-melt gun (700) to accurately connect and press the hot-melt pad on the geotextile; the hot-melt pad and the waterproof membrane are melted together by heating, and a firm connection is formed after cooling, realizing the point-by-point fixing of the waterproof membrane; as the trolley continues to advance, the waterproof membrane laying and fixing operation of the entire section is completed.

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