Waterproof construction device for parapet inner side wall root and construction method thereof

Abstract

This invention relates to the field of building waterproofing construction technology, specifically to a waterproofing construction device and method for the inner wall base of a parapet wall. The device includes a curved pipe, with two curved pipes fixedly connected by a fixing rod. A first telescopic rod and a second telescopic rod are fixedly connected to both ends of either curved pipe. The first telescopic rod is equipped with a locking knob. Wheel sets are connected to the ends of both the first and second telescopic rods. A reinforcing rod is fixedly installed between the first and second telescopic rods. An adjusting part is installed at the center of the fixing rod, and a metal scraper is installed at the tail of the adjusting part. The metal scraper has drainage holes inside. The adjusting part includes a bushing welded to the center of the fixing rod. A lead screw is rotatably inserted into the bushing, and a sleeve is fitted onto the outer side of the lead screw. A limit groove is formed on the outer wall of the sleeve along its parallel direction. This invention has the characteristics of wide applicability, low material loss, and high aesthetic appeal due to its rounded arc treatment.

Description

Technical Field

[0001] This invention relates to the field of building waterproofing construction technology, specifically to a waterproofing construction device and construction method for the inner wall base of a parapet wall. Background Technology

[0002] Building waterproofing refers to measures taken in building materials and construction to prevent water penetration into certain parts of a building. Waterproofing is commonly used on roofs, underground structures, underground parts of buildings, interior spaces requiring waterproofing, and water-retaining structures. Based on the different measures and methods employed, it is divided into two main categories: material waterproofing and structural waterproofing. Material waterproofing relies on building materials to block the path of water to achieve waterproofing or increase resistance to leakage, such as waterproof membranes, coatings, rigid waterproofing with concrete and cement mortar, and waterproofing with clay and lime-soil mixtures. Structural waterproofing, on the other hand, uses appropriate structural forms to block the path of water to achieve waterproofing, such as waterstops and cavity structures.

[0003] A parapet wall, also known as an eaves wall, is a type of wall treatment that connects the roof to the exterior wall. As a roof railing or a structural element of the building, it prevents falls and also serves to waterproof the roof. Because the parapet wall connects to the roof, its base is the junction point, a region where stress is concentrated. Whether it's building settlement or vibrations from daily activities, these will first be felt at the base corner. Additionally, paint drips during application can cause material to accumulate at the base corner, and excessive buildup can lead to cracking. Therefore, when waterproofing a parapet wall, its base needs to be rounded.

[0004] During construction, there are generally two methods for treating the arc. One is to evenly pile cement mortar at the base of the wall and then roll it with cylindrical objects such as wine bottles, round rods, or hollow rods. This method makes it difficult to control the curvature of the cement mortar after rolling, is difficult to operate, and easily leads to waste of cement mortar. The other method is to manually apply cement mortar to the base of the wall using a specially made curved trowel. However, since the shape of the specially made curved trowel is fixed, it cannot adapt to the arc treatment of the base of parapet walls of different heights. Summary of the Invention

[0005] To address the problems in the prior art, this invention provides a waterproofing construction device and construction method for the inner wall base of a parapet wall.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a waterproof construction device for the inner wall base of a parapet wall, including a bend pipe, both bend pipes having an angle of 90°, the two bend pipes being fixedly connected by a fixing rod, a first telescopic rod and a second telescopic rod being fixedly connected to both ends of any one of the bend pipes, the first telescopic rod being equipped with a locking knob, the ends of the first telescopic rod and the second telescopic rod being connected to a wheel set, a reinforcing rod being fixedly installed between the first telescopic rod and the second telescopic rod, an adjustment part being installed in the middle of the fixing rod, a metal scraper being installed at the tail of the adjustment part, the metal scraper being 0.5-1mm thick, and the metal scraper having a leakage hole inside; The adjusting part includes a bushing welded to the center of the fixed rod. The bushing is inclined at a 45° angle relative to the axis of the fixed rod. A lead screw is rotatably inserted into the bushing, and a sleeve is fitted onto the outer side of the lead screw. A limit groove is formed on the outer wall of the sleeve along its parallel direction. A limit rod is inserted into the limit groove, and the end of the limit rod is fixedly connected to the outer wall of the fixed rod. A first swing arm is symmetrically mounted on the outer ring of the sleeve via a pivot. A second swing arm is mounted on the end side wall of the first swing arm via a connecting rod. A positioning shaft is inserted into the end of the second swing arm for positioning. Shaft seats are installed at both ends of the shaft, and the shaft seats are fixedly connected to the inner side wall of the metal scraper. A handle is connected to the end of the lead screw facing away from the metal scraper, and a positioning rod is inserted into the end of the lead screw facing the metal scraper. A force-bearing block is fixedly connected to the end of the positioning rod, and the outer wall of the force-bearing block is close to the inner wall of the metal scraper in the center position. Positioning plates are symmetrically installed on the outer wall of the force-bearing block. A support plate is fixedly connected to one side of the positioning plate through a crossbar. The end of the support plate is fixedly connected to the outer wall of the reinforcing rod. The distance between the two positioning shafts and the force-bearing blocks is equal. A fixed platform is provided between the two bends. The bottom of the fixed platform is respectively installed on the outer wall of the fixed rod and the reinforcing rod. A feeding hopper is installed on the top of the fixed platform. A flexible channel pipe is installed at the bottom of the feeding hopper. The other end of the flexible channel pipe covers the hole inside the metal scraper. A handle is installed on the top of the first telescopic rod.

[0007] Specifically, both the positioning shaft and the force-bearing block have through slots on the side near the metal scraper. A gear shaft is installed between the two first swing arms on the same side. An annular groove is opened in the center of the gear shaft. An annular toothed track is meshed with the outer side of the gear shaft. Both ends of the annular toothed track are fixedly connected to the outer wall of the sleeve by rectangular plates. The annular toothed track is concentric with the rotating shaft. Flexible guide rails are symmetrically arranged on the inner wall of the metal scraper on both sides of the leakage hole. A cylindrical guide block is installed in each flexible guide rail. There are multiple cylindrical guide blocks, and the cylindrical guide blocks are located at the lower horizontal position. A spring is installed between the guide block and the flexible guide rail. A flexible baffle is set between the two flexible guide rails. Both sides of the flexible baffle are fixedly connected to the cylindrical guide block. A connecting hole is opened inside the flexible baffle. The edge of the connecting hole is connected to one end of the flexible channel tube, and the connecting hole coincides with the leakage hole. A limit plate is set on the outer surface of the flexible baffle. The limit plate is fixedly installed on the side wall of the flexible guide rail. The limit plate and the flexible baffle are not in contact. A linkage rope is embedded in the end of the flexible baffle facing the force block. The free end of the linkage rope passes through the through groove and the annular toothed track in sequence and is wound around the annular groove.

[0008] Specifically, a synchronous shaft that can rotate together is installed on the top of the wheel set at one end of the first telescopic rod. A shaft frame is installed at the top of the outer wall of the hopper, and a screw feed rod is installed at the center of the shaft frame. The screw feed rod is located inside the hopper, and the screw feed rod is connected to the synchronous shaft via a transmission belt. A limit shaft is provided on the outer wall of the hopper, and the outer wall of the limit shaft is close to the inner wall of the transmission belt.

[0009] Specifically, the wheel assembly at one end of the first telescopic rod is composed of inflatable rubber wheels, and the wheel assembly at one end of the second telescopic rod is composed of swivel wheels.

[0010] Specifically, a positioning wheel is installed at the head of the support plate, the outer wall of the positioning wheel is close to the outer wall of the linkage rope, and the positioning wheel does not contact the metal scraper.

[0011] Specifically, both the fixing rod and the reinforcing rod are composed of multiple round rods, which are fixed together by bolts and welded together with the bend.

[0012] Specifically, a partition is provided between the flexible channel tube and the force-bearing block. The partition is connected to the outer wall of the positioning rod through an installation rod, and the partition has an inclination angle of 30-60° relative to the horizontal plane.

[0013] Furthermore, the present invention also provides a construction method for a waterproofing construction device for the inner wall base of a parapet wall, the construction method of which specifically includes the following steps: S1. Base treatment: Remove hardened mortar clumps from the roof base using a concrete slag remover, and wipe the cleaned base with a clean, damp cloth; S2. Wall base marking: Measure the height of the parapet wall, determine the construction radius of the parapet wall base inside corner arc based on the measured parapet wall height, and mark the above construction radius on the parapet wall and roof with a marker pen; S3. Equipment adjustment: Adjust the bending angle of the metal scraper through the adjustment unit. During the adjustment process, hold the handle and push the wheel group on the first telescopic rod close to the inside of the parapet wall until the contact position of the metal scraper with the parapet wall and the roof coincides with the position marked in S2. Then lock the position of the first telescopic rod by turning the locking knob. S4. Grouting and chamfering: The prepared cement mortar is poured into the conveying hopper. The cement mortar falls from the hopper and the flexible channel pipe into the base of the parapet wall and the roof (i.e., the inside corner of the parapet wall). Then, the conveying hopper is pushed relative to the base of the wall by the handle. During the movement, the cement mortar falling into the base of the wall is scraped by the metal scraper to make it form an arc shape. S5. Apply primer: After the cement mortar has completely dried, use a long-handled roller to evenly apply the prepared primer to the arc-shaped cement mortar surface of the base layer and wall base. Let it stand for 3.5-4.5 hours after application. S6. Laying the membrane: After the S5 process is completed, lay an additional layer of waterproof membrane on the base layer and chamfered corners, press it firmly, and seal the top cover with polyurethane waterproof coating.

[0014] The beneficial effects of this invention are: The present invention discloses a waterproofing construction device and method for the inner wall base of a parapet wall, which includes components such as a metal scraper and an adjustment part. The metal scraper used in this invention for rounding the wall base has a certain degree of extensibility and can be adjusted to adjust the curvature according to different parapet wall heights to meet the needs of different wall base rounding treatments. The entire construction process only requires pushing the device along the parapet wall, and the process is stable and smooth, resulting in a high aesthetic appearance of the formed rounded cement mortar and effectively reducing the waste of waterproofing construction materials at the parapet wall base.

[0015] The present invention discloses a waterproofing construction device and method for the inner wall base of a parapet wall. The cement mortar outlet of the present invention can change position according to the angle of the metal scraper. This ensures that when the area of ​​the arc-shaped region changes due to the bending angle of the metal scraper, part of the connecting hole remains above the marked line, while another part remains within the arc-shaped region. This method effectively ensures that the cement mortar can still fill the arc-shaped region where the area changes, maintaining the integrity of the arc-shaped cement mortar formation. Furthermore, it ensures that the metal scraper can be arbitrarily changed within a bending angle range with resilience, effectively increasing the applicability of the present invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a front view of the present invention; Figure 3 For the present invention Figure 1 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 5 This is a partial structural cross-sectional view of the present invention; Figure 6 For the present invention Figure 5 A magnified view of a portion of region B in the middle; Figure 7 This is a schematic diagram of the working state of the present invention; Figure 8 This is a flowchart of the present invention; In the diagram: 1. Bend; 2. First telescopic rod; 3. Second telescopic rod; 4. Wheel assembly; 5. Adjustment section; 6. Metal scraper; 61. Leakage hole; 62. Flexible guide rail; 63. Cylindrical guide block; 64. Flexible baffle; 65. Connecting hole; 66. Limiting plate; 67. Linkage rope; 7. Hopper; 8. Handle; 11. Fixed rod; 12. Fixed platform; 21. Reinforcing rod; 51. Bushing; 52. Lead screw; 53. Sleeve; 531. Limiting... 532. Positioning slot; 54. First swing arm; 55. Second swing arm; 56. Positioning shaft; 57. Shaft seat; 58. Handle; 59. Positioning rod; 591. Force-bearing block; 592. Positioning plate; 593. Support plate; 594. Positioning wheel; 71. Flexible channel tube; 72. Partition plate; 541. Gear shaft; 542. Annular toothed track; 42. Synchronous shaft; 43. Shaft bracket; 44. Spiral feed rod; 45. Transmission belt. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] Furthermore, the terms used below are defined based on the functionality of this invention and may vary depending on the user's, operator's, or conventions. Therefore, these terms are defined based on the entire contents of this specification.

[0020] See Figure 1-8The present invention discloses a waterproofing construction device for the inner wall base of a parapet wall, comprising a bend 1, both bends 1 having an angle of 90°, and the two bends 1 being fixedly connected by a fixing rod 11. A first telescopic rod 2 and a second telescopic rod 3 are fixedly connected to both ends of any one bend 1. The first telescopic rod 2 is equipped with a locking knob. The ends of the first telescopic rod 2 and the second telescopic rod 3 are connected to a wheel set 4. A reinforcing rod 21 is fixedly installed between the first telescopic rod 2 and the second telescopic rod 3. An adjusting part 5 is installed in the center of the fixing rod 11. A metal scraper 6 is installed at the tail of the adjusting part 5. The metal scraper 6 has a thickness of 0.5-1mm to ensure the ductility of the metal scraper 6, that is, the metal scraper 6 has a rebound force within a certain bending range. At the same time, the rigidity of the metal scraper 6 itself can completely scrape the cement mortar. A drainage hole 61 is opened inside the metal scraper 6. Furthermore, both the fixing rod 11 and the reinforcing rod 21 are composed of multiple round rods. The adjacent round rods are fixed with bolts, and the round rods are fixed with the bend 1 by welding, which makes the fixing rod 11 and the reinforcing rod 21 detachable. That is, the present invention can be transported to the roof construction site for assembly. The adjusting part 5 includes a bushing 51 welded to the center of the fixed rod 11. The bushing 51 is inclined at an angle of 45° relative to the axis of the fixed rod 11. A lead screw 52 is rotatably inserted into the bushing 51. A sleeve 53 is fitted onto the outer side of the lead screw 52. A limit groove 531 is formed on the outer wall of the sleeve 53 along its parallel direction. A limit rod 532 is inserted into the limit groove 531. The end of the limit rod 532 is fixedly connected to the outer wall of the fixed rod 11. A first swing arm is symmetrically mounted on the outer ring of the sleeve 53 via a pivot axis. 54. A second swing arm 55 is mounted on the end side wall of the first swing arm 54 via a connecting rod. A positioning shaft 56 is inserted into the end of the second swing arm 55. Shaft seats 57 are installed at both ends of the positioning shaft 56. The shaft seats 57 are fixedly connected to the inner side wall of the metal scraper 6. A handle 58 is connected to the end of the lead screw 52 facing away from the metal scraper 6. A positioning rod 59 is inserted into the end of the lead screw 52 facing the metal scraper 6. A force-bearing block 591 is fixedly connected to the end of the positioning rod 59, and the outer wall of the force-bearing block 591 is in close contact with the metal scraper 6. Positioning plates 592 are symmetrically installed on the outer wall of the load-bearing block 591 at the center of the inner wall. A support plate 593 is fixedly connected to one side of the positioning plate 592 by a crossbar. The end of the support plate 593 is fixedly connected to the outer wall of the reinforcing rod 21. The distance between the two positioning shafts 56 and the load-bearing block 591 is equal. After the base treatment and wall base marking are completed, the construction personnel first adjust the length of the first telescopic rod 2 by tightening the knob so that the outermost vertical surface of the wheel assembly 4 installed at one end is within the installation area of ​​the metal scraper 6. Then adjust the positions of the four wheel sets 4 so that one edge of the metal scraper 6 is close to the parapet wall. Then lock the position of the first telescopic rod 2 by locking the knob to complete the initial position adjustment of the present invention. By turning the handle 58, the lead screw 52 can be driven to rotate in the bushing 51. During the rotation, since the limiting rod 532 and the limiting groove 531 lock the axial rotation position of the sleeve 53, the sleeve 53 does not rotate with the sleeve 52. The sleeve 53 only moves laterally along the outer wall of the lead screw 52. In practice, initially, the metal scraper 6 is at its minimum bending angle, and the distance between the contact line of the metal scraper 6 and the parapet wall and the roof is at its maximum. Therefore, in this embodiment, we will take the case where the contact line of the metal scraper 6 and the parapet wall is higher than the marked line as an example. In this case, the construction worker rotates the handle 58 clockwise to drive the lead screw 52 to rotate, causing the sleeve 53 to move to the higher position of the lead screw 52 (conversely, rotating the handle 58 counterclockwise will cause the sleeve 53 to move in the opposite direction). When the sleeve 53 moves, it drives the first swing arm 54 to move. The first swing arm 54 transmits the force to the second swing arm 55. The end of the second swing arm 55 applies a pulling force to the positioning shaft 56 and the bearing seat 57 (during this process, both the first swing arm 54 and the second swing arm 55 will deflect). This pulling force acts directly on the metal scraper 6, causing it to bend. As the bending angle increases, the invention is pushed towards the parapet wall during the bending process of the metal scraper 6 until the contact position between the metal scraper 6 and the parapet wall coincides with the marked line. Then, the length of the first telescopic rod 2 is adjusted. When the wheel set 4 installed at one end is close to the parapet wall, the length of the first telescopic rod 2 is locked. Since the force block 591 is installed in the center of the metal scraper 6 and close to it, the bending angles at both ends are equal when the metal scraper 6 bends. Therefore, after the position of the first telescopic rod 2 is adjusted, the length of the second telescopic rod 3 is adjusted so that the contact position between the metal scraper 6 and the roof coincides with the marked line. Finally, the length of the second telescopic rod 3 is locked, and the adjustment of the construction position of the invention is completed. At this time, an arc-shaped area is formed between the metal scraper 6, the parapet wall and the roof. like Figure 2-3 As shown, a fixed platform 12 is provided between the two bent pipes 1. The bottom of the fixed platform 12 is respectively installed on the outer wall of the fixed rod 11 and the reinforcing rod 21. A material conveying hopper 7 is installed on the top of the fixed platform 12. A flexible channel pipe 71 is installed at the bottom of the material conveying hopper 7. The other end of the flexible channel pipe 71 covers the hole 61 inside the metal scraper 6. A handle 8 is installed on the top of the first telescopic rod 2. The construction personnel can more easily adjust the position of the present invention relative to the parapet wall by holding the handle 8. After the construction position is adjusted, cement mortar is injected into the material conveying hopper 7. The cement mortar leaks out from the hole 61 along the flexible channel pipe 71 and enters the arc forming area. Then, the construction personnel push the present invention laterally along the parapet wall by holding the handle 8. Under the action of the metal scraper 6, an arc-shaped cement mortar can be formed. This method can control the construction size of the arc according to the actual height of the parapet wall. The entire construction process only requires pushing the present invention along the parapet wall. The process is stable and smooth, resulting in a high aesthetic appearance of the formed arc cement mortar and effectively reducing the consumption of waterproof construction materials at the base of the parapet wall. It should be noted that during the process of adjusting the bending angle of the metal scraper 6, it is necessary to ensure that a portion of the drain hole 61 is located above the marked line after adjustment. In this case, it can be further ensured that the cement mortar can completely enter the arc forming area.

[0021] In another embodiment, see Figures 1-6Both the positioning shaft 56 and the force-bearing block 591 have through slots on the side near the metal scraper 6. A gear shaft 541 is installed between the two first swing arms 54 on the same side. An annular groove is opened in the center of the gear shaft 541. An annular toothed track 542 is meshed with the outer side of the gear shaft 541. Both ends of the annular toothed track 542 are fixedly connected to the outer wall of the sleeve 53 by rectangular plates. The annular toothed track 542 is concentric with the rotating shaft. Flexible guide rails 62 are symmetrically arranged on the inner wall of the metal scraper 6 on both sides of the leakage hole 61. A cylindrical guide block 63 is installed in each flexible guide rail 62. There are multiple cylindrical guide blocks 63. A spring is installed between the cylindrical guide block 63 at the lower horizontal position and the flexible guide rail 62. A flexible baffle 64 is provided between the guide rails 62. Both sides of the flexible baffle 64 are fixedly connected to the cylindrical guide blocks 63. A connecting hole 65 is opened inside the flexible baffle 64. The edge of the connecting hole 65 is connected to one end of the flexible channel tube 71, and the connecting hole 65 coincides with the drain hole 61. Cement mortar can enter the arc forming area through the connecting hole 65 and the drain hole 61. A limit plate 66 is provided on the outer surface of the flexible baffle 64. The limit plate 66 is fixedly installed on the side wall of the flexible guide rail 62, and there is no contact between the limit plate 66 and the flexible baffle 64. A linkage rope 67 is embedded in the end of the flexible baffle 64 facing the force block 591. The free end of the linkage rope 67 passes through the through groove and the annular toothed track 542 in sequence and is wound around the annular groove. When the metal scraper 6 bends, the first swing arm 54 deflects, causing the gear shaft 541 to deflect as well. After deflection, the gear shaft 541 moves along the annular toothed track 542, causing it to rotate relative to the first swing arm 54. This rotation winds one end of the linkage rope 67 into the annular groove, while the other end of the linkage rope 67 is subjected to tension. This tension acts directly on one end of the flexible baffle 64, causing it to move towards the bottom of the metal scraper 6. The cylindrical guide block 63 moves along the flexible guide rail 62, and the cylindrical guide block 63 at the lower horizontal position compresses and deforms the spring. The rebound force generated by the spring compression deformation acts as a driving force to move the flexible baffle as the bending angle of the metal scraper 6 increases. (64 moves towards the initial position). When the flexible baffle 64 moves, the position of the connecting hole 65 also changes accordingly. This ensures that when the area of ​​the arc forming region changes due to the change in the bending angle of the metal scraper 6, part of the connecting hole 65 is always above the marking line, while another part is always within the arc forming region. This method effectively ensures that the cement mortar can still fill the arc forming region where the area changes, and the forming effect of the cement mortar arc is complete. On the other hand, since the position of the connecting hole 65 can change according to the bending angle of the metal scraper 6, the metal scraper 6 can be arbitrarily changed within the bending angle range with elasticity, effectively increasing the applicability of the present invention.

[0022] In another embodiment, see Figures 1-7 A synchronous shaft 42, which can rotate together with the wheel assembly 4 at one end of the first telescopic rod 2, is installed on the top of the wheel assembly 4. A shaft bracket 43 is installed at the upper position on the outer wall of the conveying hopper 7. A screw feed rod 44 is installed at the center of the shaft bracket 43. The screw feed rod 44 is located inside the conveying hopper 7. The screw feed rod 44 and the synchronous shaft 42 are connected by a transmission belt 45. A limit shaft 46 is provided on the outer wall of the conveying hopper 7, and the outer wall of the limit shaft 46 is close to the inner wall of the transmission belt 45. The construction of the arc-shaped cement mortar at the base of the parapet wall is then carried out. During the process, when the wheel set 4 at one end of the first telescopic rod 2 moves along the parapet wall sidewall, the wheel set 4 rotates under the action of friction between the two. The synchronous shaft rod 42 rotates together with the wheel set 4. The rotating synchronous shaft rod 42 drives the screw feed rod 44 to rotate on the shaft frame 43 under the action of the transmission belt 45. The rotating screw feed rod 44 will stir and squeeze the cement mortar in the conveying hopper 7, so that the cement mortar in the conveying hopper 7 will not be blocked, effectively ensuring the stability of the construction of the present invention.

[0023] like Figure 1 As shown, the wheel assembly 4 at one end of the first telescopic rod 2 is composed of inflatable rubber wheels. The rubber wheels effectively increase the contact friction between them and the parapet wall to ensure that the wheel assembly 4 can rotate normally. The wheel assembly 4 at one end of the second telescopic rod 3 is composed of casters. When the construction worker holds the handle 8 to adjust the position of the invention, the wheel assembly 4 of the casters is easy to turn and adjust, making the whole adjustment process more convenient and simple.

[0024] See Figure 2 and Figure 3 A positioning wheel 594 is installed at the head of the support plate 593. The outer wall of the positioning wheel 594 is close to the outer wall of the linkage rope 67, and the positioning wheel 594 does not contact the metal scraper 6. The linkage rope 67 first passes around the positioning wheel 594 and then connects to the flexible baffle 64 to prevent the linkage rope 67 from directly contacting the edge of the through groove of the force block 591 and reduce the wear of the linkage rope 67.

[0025] See Figures 1-3 A partition 72 is provided between the flexible channel tube 71 and the force-bearing block 591. The partition 72 is connected to the outer wall of the positioning rod 59 by the mounting rod, and the partition 72 has an inclination angle of 30-60° relative to the horizontal plane. The shape of the flexible channel tube 71 in the attached drawings of this specification is not the actual shape of the flexible channel tube 71. When cement mortar passes through the flexible channel tube 71, the flexible channel tube 71 forms an inward arc shape under its own weight and the weight of the cement mortar. Its outer side will rest on one side of the partition 72, effectively avoiding the situation where the cement mortar in the area is blocked due to excessive sinking and deformation of the flexible channel tube 71.

[0026] Furthermore, the present invention also provides a construction method for a waterproofing construction device for the inner wall base of a parapet wall, the construction method of which specifically includes the following steps: S1. Base treatment: Remove hardened mortar clumps from the roof base using a concrete slag remover, and wipe the cleaned base with a clean, damp cloth; S2. Wall base marking: Measure the height of the parapet wall and determine the construction radius of the parapet wall base inside corner arc based on the measured parapet wall height. The determination standard is as follows; The radius of the arc (r) = the height of the parapet wall (h) ÷ 10; The construction radius is marked on the parapet wall and roof using a marker. A level can be used to assist in marking to ensure that the marking line is parallel to the horizontal plane. S3. Equipment adjustment: Adjust the bending angle of the metal scraper 6 by adjusting the adjustment part 5. During the adjustment process, hold the handle 8 and push the wheel group 4 on the first telescopic rod 2 to press against the inside of the parapet wall until the contact position of the metal scraper 6 with the parapet wall and the roof coincides with the position marked in S2. Then lock the position of the first telescopic rod 2 by turning the locking knob. S4. Grouting and chamfering: The prepared cement mortar is poured into the conveying hopper 7. The cement mortar falls from the drain hole 61 into the base of the parapet wall and the roof (i.e., the inside corner of the parapet wall) through the conveying hopper 7 and the flexible channel pipe 71. Then, the conveying hopper 7 is pushed relative to the base of the wall by the handle 8. During the movement, the cement mortar falling into the base of the wall is scraped by the metal scraper 6 to form an arc shape. S5. Apply primer: After the cement mortar has completely dried, use a long-handled roller to evenly apply the prepared primer to the arc-shaped cement mortar surface of the base layer and wall base. The primer can be prepared by mixing polyurethane component A, component B and diphenyl phthalate in a weight ratio of 1:1.6:2, and the prepared primer should be used within 2.5 hours. After applying the base coat, let it stand for 3.5-4.5 hours. The specific standing time can be determined by touching the surface with your hands. When the surface no longer feels sticky to the touch, the standing time is complete and the next step can be carried out. S6. Laying the membrane: After the S5 process is completed, lay an additional layer of waterproof membrane on the base layer and at the chamfer, press it firmly, and seal the top cover with polyurethane waterproof coating. Based on this, depending on whether the parapet wall has a groove, the end of the waterproof membrane is fixed. The specific steps are as follows; 1): A groove is provided. Press the end of the waterproof membrane into the groove, seal it with sealant, and finally fill and protect it with cement mortar. 2): No groove is provided; a metal strip is used for direct nailing and sealing.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproofing construction device for the inner wall base of a parapet wall, comprising a bent pipe (1), characterized in that: Both of the above-mentioned bends (1) are 90° apart. The two bends (1) are fixedly connected by a fixing rod (11). A first telescopic rod (2) and a second telescopic rod (3) are fixedly connected to both ends of any one of the bends (1). A locking knob is provided on the first telescopic rod (2). A wheel set (4) is connected to the ends of the first telescopic rod (2) and the second telescopic rod (3). A reinforcing rod (21) is fixedly installed between the first telescopic rod (2) and the second telescopic rod (3). An adjustment part (5) is installed in the middle of the fixing rod (11). A metal scraper (6) is installed at the tail of the adjustment part (5). The metal scraper (6) is 0.5-1mm thick and has a hole (61) inside. The adjusting part (5) includes a bushing (51) welded to the center of the fixed rod (11). The bushing (51) is inclined at an angle of 45° relative to the axis of the fixed rod (11). A lead screw (52) is rotatably inserted inside the bushing (51). A sleeve (53) is fitted on the outside of the lead screw (52). A limit groove (531) is opened on the outer wall of the sleeve (53) along its parallel direction. A limit rod (532) is inserted inside the limit groove (531). The end of the limit rod (532) is fixedly connected to the outer wall of the fixed rod (11). A first swing arm (54) is symmetrically installed on the outer ring of the sleeve (53) through a rotating shaft. A second swing arm (55) is installed on the end side wall of the first swing arm (54) through a connecting rod. A positioning shaft (56) is inserted at the end of the second swing arm (55). 56) has a bearing seat (57) installed at both ends. The bearing seat (57) is fixedly connected to the inner wall of the metal scraper (6). The end of the screw (52) facing away from the metal scraper (6) is connected to a handle (58). The end of the screw (52) facing the metal scraper (6) is connected to a positioning rod (59). The end of the positioning rod (59) is fixedly connected to a force block (591). The outer wall of the force block (591) is close to the inner wall of the metal scraper (6) in the center. The outer wall of the force block (591) is symmetrically installed with positioning plates (592). One side of the positioning plate (592) is fixedly connected to a support plate (593) through a crossbar. The end of the support plate (593) is fixedly connected to the outer wall of the reinforcing rod (21). The distance between the two positioning shafts (56) and the force block (591) is equal. A fixed platform (12) is provided between the two bent pipes (1). The bottom of the fixed platform (12) is respectively installed on the outer wall of the fixed rod (11) and the reinforcing rod (21). A conveying hopper (7) is installed on the top of the fixed platform (12). A flexible channel pipe (71) is installed at the bottom of the conveying hopper (7). The other end of the flexible channel pipe (71) covers the hole (61) inside the metal scraper (6). A handle (8) is installed on the top of the first telescopic rod (2).

2. The waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: The positioning shaft (56) and the force-bearing block (591) are both provided with through slots on the side near the metal scraper (6). A gear shaft (541) is installed between the two first swing arms (54) on the same side. An annular groove is provided in the center of the gear shaft (541). An annular toothed track (542) is meshed with the outer side of the gear shaft (541). Both ends of the annular toothed track (542) are fixedly connected to the outer wall of the sleeve (53) by rectangular plates. The annular toothed track (542) is co-centered with the rotating shaft. Flexible guide rails (62) are symmetrically arranged on the inner wall of the metal scraper (6) and on both sides of the drain hole (61). Each flexible guide rail (62) is equipped with a cylindrical guide block (63). There are multiple cylindrical guide blocks (63). The cylindrical guide block (63) at the lower horizontal position is connected to the flexible guide rail (691). 2) A spring is installed between the two flexible guide rails (62) and a flexible baffle (64) is provided between them. Both sides of the flexible baffle (64) are fixedly connected to the cylindrical guide block (63). A connecting hole (65) is opened inside the flexible baffle (64). The edge of the connecting hole (65) is connected to one end of the flexible channel tube (71), and the connecting hole (65) coincides with the leakage hole (61). A limiting plate (66) is provided on the outer surface of the flexible baffle (64). The limiting plate (66) is fixedly installed on the side wall of the flexible guide rail (62), and the limiting plate (66) and the flexible baffle (64) are in contact but not connected. A linkage rope (67) is embedded in one end of the flexible baffle (64) facing the force block (591). The free end of the linkage rope (67) passes through the through groove and the annular toothed track (542) in sequence and is wound around the annular groove.

3. The waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: A synchronous shaft (42) that can rotate together is installed on the top of the wheel set (4) at one end of the first telescopic rod (2). A shaft frame (43) is installed at the upper position on the outer wall of the feeding hopper (7). A screw feed rod (44) is installed at the middle position of the shaft frame (43). The screw feed rod (44) is located inside the feeding hopper (7). The screw feed rod (44) and the synchronous shaft (42) are connected by a transmission belt (45). A limit shaft (46) is provided on the outer wall of the feeding hopper (7), and the outer wall of the limit shaft (46) is close to the inner wall of the transmission belt (45).

4. A waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: The wheel assembly (4) at one end of the first telescopic rod (2) is composed of inflatable rubber wheels, and the wheel assembly (4) at one end of the second telescopic rod (3) is composed of omnidirectional wheels.

5. A waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: A positioning wheel (594) is installed at the head of the support plate (593). The outer wall of the positioning wheel (594) is close to the outer wall of the linkage rope (67), and the positioning wheel (594) does not contact the metal scraper (6).

6. A waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: The fixing rod (11) and the reinforcing rod (21) are both composed of multiple round rods. The adjacent round rods are fixed with bolts, and the round rods are fixed with the bent pipe (1) by welding.

7. A waterproofing construction device for the inner wall base of a parapet wall according to claim 1, characterized in that: A partition (72) is provided between the flexible channel tube (71) and the force-bearing block (591). The partition (72) is connected to the outer wall of the positioning rod (59) through the mounting rod, and the partition (72) has an inclination angle of 30-60° relative to the horizontal plane.

8. A waterproofing construction device for the inner wall base of a parapet wall according to any one of claims 1-7, characterized in that: The construction method of the aforementioned waterproofing device for the inner wall base of a parapet wall specifically includes the following steps: S1. Base treatment: Remove hardened mortar clumps from the roof base using a concrete slag remover, and wipe the cleaned base with a clean, damp cloth; S2. Wall base marking: Measure the height of the parapet wall, determine the construction radius of the parapet wall base inside corner arc based on the measured parapet wall height, and mark the above construction radius on the parapet wall and roof with a marker pen; S3. Equipment adjustment: Adjust the bending angle of the metal scraper (6) through the adjustment part (5). During the adjustment process, hold the handle (8) and push the wheel group (4) on the first telescopic rod (2) close to the inside of the parapet wall until the contact position of the metal scraper (6) with the parapet wall and the roof coincides with the position marked in S2. Then lock the position of the first telescopic rod (2) by turning the locking knob. S4. Grouting and chamfering: The prepared cement mortar is put into the conveying hopper (7). The cement mortar falls from the hole (61) into the base of the parapet wall and the roof through the conveying hopper (7) and the flexible channel pipe (71), that is, the inside corner of the parapet wall. Then, the conveying hopper (7) is pushed relative to the base of the wall by the handle (8). During the movement, the cement mortar falling into the base of the wall is scraped by the metal scraper (6) to form an arc shape. S5. Apply primer: After the cement mortar has completely dried, use a long-handled roller to evenly apply the prepared primer to the arc-shaped cement mortar surface of the base layer and wall base. Let it stand for 3.5-4.5 hours after application. S6. Laying the membrane: After the S5 process is completed, lay an additional layer of waterproof membrane on the base layer and chamfered corners, press it firmly, and seal the top cover with polyurethane waterproof coating.

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