Shield segment sealing film pasting device

Abstract

The utility model relates to the technical field of shield construction, in particular to a shield segment sealing film pasting device which comprises a fixing support and a shaft barrel, the shaft barrel is welded and fixed to the top of the fixing support, a rotatable driving shaft is assembled in the shaft barrel through a bearing, and the right end of the driving shaft is fixedly sleeved with a rotating shaft sleeve. A first telescopic frame is welded to the annular face of the rotating shaft sleeve, a second telescopic frame is fixedly arranged on the side, symmetrical to the first telescopic frame, of the annular face of the rotating shaft sleeve, a film pressing roller used for extruding a sealing film is assembled at the tail end of the first telescopic frame, a pressing and pasting mechanism parallel to the film pressing roller is arranged on the left side of the film pressing roller, and a roller brush is arranged at the tail end of the second telescopic frame. According to the sealing film pasting device, automatic pasting of a sealing film is achieved, meanwhile, the sealing film can be pasted after an adhesive is smeared by adopting an overall circulating rotation mode, pasting continuity of the sealing film is achieved, the difficulty and labor intensity of manual operation are reduced, and working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a shield segment sealing film applying device. Background Art

[0002] Shield segments are precast concrete components used in underground projects such as tunnels and underground pipelines. Typically cast from molds, they possess high strength, durability, and excellent waterproofing properties. They provide support, protection, and waterproofing in underground projects, effectively withstanding loads such as soil and groundwater pressure, ensuring the stability and safety of underground projects. As the primary assembly component of shield construction, segments serve as the tunnel's innermost barrier, resisting soil and groundwater pressure, as well as certain special loads.

[0003] After shield tunnel segments are laid, a waterproof sealing membrane needs to be applied to their surfaces to enhance the tunnel's waterproofing. However, existing methods for applying sealing membranes often rely on manual labor, where adhesive is applied to the segments' surfaces before the waterproof sealing membrane is applied. This manual process is difficult, labor-intensive, and inefficient, and can also result in uneven application and difficulty ensuring a secure seal. Therefore, developing a device that can automatically and efficiently apply sealing membranes to shield tunnel segments is crucial for improving tunnel construction quality and efficiency. Utility Model Content

[0004] In response to the existing deficiencies, the utility model provides a shield segment sealing film applying device, which solves the problems raised in the above-mentioned background technology. The device can effectively reduce manual labor intensity, reduce operation difficulty, improve the efficiency and accuracy of sealing film pasting during shield segment laying, ensure the tight fit of the sealing film, and thus enhance the waterproof performance of the tunnel.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The transmission mechanism that this invention relates to is that this invention relates to a shield segment sealing film applying device, comprises a fixed bracket and a shaft cylinder, the shaft cylinder is welded and fixed on the top of the fixed bracket, the bottom of the fixed bracket is fixedly provided with a base, the shaft cylinder is equipped with a rotatable driving shaft through a bearing, and the right half of the driving shaft extends out of the shaft cylinder, the right end of the driving shaft is fixedly provided with a rotating shaft sleeve, the driving shaft is equipped with a driven helical gear near the shaft cylinder on the upper side of the shaft cylinder, the reduction motor is installed

[0007] Furthermore, the specifications of the first telescopic frame are the same as those of the second telescopic frame. The first telescopic frame includes a movable support arm, a fixed support arm, a hydraulic cylinder and a crossbeam plate. The fixed support arm is provided with two groups and is symmetrically fixed on the rotating shaft sleeve near both ends. A movable support arm that can be slidably adjusted is inserted inside the fixed support arm. The two groups of movable support arms and the two groups of fixed support arms are fixedly connected by a crossbeam plate, and the two groups of crossbeam plates are connected by a hydraulic cylinder.

[0008] Furthermore, a film winding roller for storing the sealing film is provided on the right side of the first telescopic frame, and the film winding roller is fixed on two groups of fixed arms.

[0009] Furthermore, the adhesive delivery mechanism consists of an adhesive delivery pump, a diversion pipe, a roller brush, an adhesive nozzle and an adhesive storage box. The adhesive storage box is fixed on the left side of the second telescopic frame, and the adhesive storage box is connected to the adhesive delivery pump through a telescopic hose. The adhesive delivery pump is fixed on the crossbeam plate on the lower side of the second telescopic frame. Multiple groups of adhesive nozzles are evenly embedded at the bottom of the roller brush, and the outlet of the adhesive nozzle faces the roller brush. The output end of the adhesive delivery pump is connected to the adhesive nozzle through a diversion pipe.

[0010] Furthermore, the pressing mechanism includes a rubber scraper, an articulated connecting rod, a tension spring and an articulated seat. The rubber scraper is arranged on the left side of the film pressing roller. Two groups of articulated connecting rods are fixed at the bottom of the rubber scraper. Two groups of articulated seats are fixed at the bottom of the film pressing roller. The right end of the articulated connecting rod is hinged to the articulated seat. A tension spring is provided on the articulated connecting rod, and the right end of the tension spring is connected to the film pressing roller.

[0011] Furthermore, triangular reinforcement ribs are welded at the connection between the left and right sides of the fixing bracket and the base;

[0012] The left and right sides of the connection between the first telescopic frame, the rotating shaft sleeve and the second telescopic frame are welded with E-shaped reinforcing pull frames.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model realizes the automatic application of the sealing film. At the same time, the device adopts the overall circular rotation mode, which can apply the sealing film after applying the adhesive, thereby realizing the continuity of the sealing film application, reducing the difficulty and labor intensity of manual operation, and greatly improving work efficiency.

[0015] 2. The design of the roller brush and the film pressing roller in the utility model ensures the uniform application of the adhesive and the close fitting of the sealing film, thereby improving the uniformity of the pasting and the sealing effect. The setting of the pressing mechanism further enhances the fit of the sealing film and ensures the reliability of the seal.

[0016] 3. The design of the telescopic frame in the utility model enables the device to adapt to shield segments of different sizes, improving its applicability and flexibility. By adjusting the length and angle of the telescopic frame, and then adjusting the distance between the roller brush and the film pressing roller and the surface of the segment, precise sealing film application can be achieved on the segments at different positions to meet different work requirements.

[0017] 4. In the present invention, a film take-up roller for storing the sealing film is located on the right side of the first telescopic frame. The film take-up roller is fixed to two sets of fixed arms. The film take-up roller is a component specifically used for storing and unrolling the sealing film and can accommodate and secure a sufficient length of sealing film. During operation, the sealing film is wound around the film take-up roller. When the sealing film needs to be applied, the sealing film is unrolled from the film take-up roller and guided to the film pressing roller for application. The design of the film take-up roller facilitates the storage and unrolling of the sealing film, reducing the complexity and labor intensity of manual operation. Furthermore, by continuously supplying the sealing film, the application process is continuous and efficient, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a structural schematic diagram of the utility model from another angle.

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the first telescopic frame and the second telescopic frame in the utility model.

[0022] Figure 5This is a schematic structural diagram of the first telescopic frame and the second telescopic frame in the present invention from another angle.

[0023] Figure 6 It is a structural diagram of the pressing mechanism in the utility model.

[0024] In the figure: 1. shaft cylinder; 2. fixed bracket; 3. base; 31. reinforcing rib; 4. rotating sleeve; 5. first telescopic frame; 51. movable support arm; 52. fixed support arm; 53. hydraulic cylinder; 54. crossbeam; 6. second telescopic frame; 7. balance limit block; 8. reduction motor; 9. driving bevel gear; 10. driven bevel gear; 11. drive shaft; 12. pressing mechanism; 121. rubber scraper; 122. articulated connecting rod; 123. tension spring; 124. articulated seat; 13. film pressing roller; 14. film winding roller; 15. reinforcing pull frame; 16. adhesive delivery pump; 17. diverter pipe; 18. roller brush; 19. adhesive nozzle; 20. adhesive storage box. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example: Figures 1 to 6As shown, a shield segment sealing membrane applying device includes a fixed bracket 2 and a shaft cylinder 1. The shaft cylinder 1 is welded and fixed to the top of the fixed bracket 2. A base 3 is fixed to the bottom of the fixed bracket 2. A rotatable drive shaft 11 is assembled inside the shaft cylinder 1 through a bearing, and the right half of the drive shaft 11 extends out of the shaft cylinder 1. A rotating sleeve 4 is fixed on the right end of the drive shaft 11. A driven helical gear 10 is assembled on the drive shaft 11 near the shaft cylinder 1. A reduction motor 8 is installed on the upper side of the shaft cylinder 1. A driving helical gear 9 is installed on the output end of the reduction motor 8, and the driving helical gear 9 is meshed with the driven helical gear 10 for transmission connection. The reduction motor 8 meshes with the driven helical gear 10 on the drive shaft 11 through the driving helical gear 9, realizing the rotation drive of the drive shaft 11, thereby driving the rotation of the entire telescopic frame, and the rotating sleeve 4 A first telescopic frame 5 is welded on the annular surface, and a second telescopic frame 6 is fixed on the side of the annular surface of the rotating sleeve 4 symmetrical to the first telescopic frame 5. The end of the first telescopic frame 5 is equipped with a film pressing roller 13 for squeezing the sealing film, and a pressing mechanism 12 parallel to the film pressing roller 13 is provided on the left side. A roller brush 18 is provided at the end of the second telescopic frame 6 for applying adhesive on the surface of the pipe segment. An adhesive conveying mechanism for conveying adhesive is provided on the inner side of the second telescopic frame 6, which realizes the automatic conveying and application of adhesive. This design solves the problem that the existing sealing film pasting method relies heavily on manual operation, in which the adhesive is manually applied to the surface of the pipe segment and then the waterproof sealing film is pasted. The manual operation method is difficult, labor-intensive, inefficient, and the pasting is uneven, making it difficult to ensure the sealing effect.

[0027] In this embodiment, the specifications of the first telescopic frame 5 are the same as those of the second telescopic frame 6. The first telescopic frame 5 includes a movable arm 51, a fixed arm 52, a hydraulic cylinder 53 and a crossbeam 54. The fixed arm 52 is provided with two groups and is symmetrically fixed on the rotating shaft sleeve 4 near both ends. The fixed arm 52 provides a stable support base for the entire telescopic frame and ensures stability during the telescopic process. A movable arm 51 that can be slidably adjusted is inserted inside the fixed arm 52. The overall length of the telescopic frame can be adjusted through sliding adjustment, and then the distance between the roller brush 18 and the film pressing roller 13 and the surface of the pipe segment can be adjusted to adapt to different working requirements. The two groups of movable arms 51 and the two groups of fixed arms 52 are fixedly connected by a crossbeam 54, and the two groups of crossbeams 54 are connected by a hydraulic cylinder 53. The telescopic movement of the hydraulic cylinder 53 can drive the movable arm 51 to slide in the fixed arm 52, thereby realizing the telescopic function of the telescopic frame. When the length of the telescopic frame needs to be adjusted, the movable arm 51 can be driven to slide in a certain direction within the fixed arm 52 by controlling the telescopic movement of the hydraulic cylinder 53. The extension and contraction amount of the hydraulic cylinder 53 determines the extension length of the movable arm 51, thereby determining the overall length of the telescopic frame. By precisely controlling the extension and contraction amount of the hydraulic cylinder 53, the length of the telescopic frame can be precisely adjusted to meet the needs of different working scenarios.

[0028] In actual use, when the length of the telescopic frame needs to be adjusted, the movable arm 51 can be driven to slide in a certain direction within the fixed arm 52 by controlling the telescopic movement of the hydraulic cylinder 53. The telescopic amount of the hydraulic cylinder 53 determines the extension length of the movable arm 51, thereby determining the overall length of the telescopic frame. By precisely controlling the telescopic amount of the hydraulic cylinder 53, the length of the telescopic frame can be precisely adjusted to meet the needs of different working scenarios.

[0029] In this embodiment, a film take-up roller 14 for storing the sealing film is located on the right side of the first telescopic frame 5. The film take-up roller 14 is fixed to two sets of fixed arms 52. The film take-up roller 14 is a component specifically designed for storing and unrolling the sealing film, capable of accommodating and securing a sufficient length of sealing film. During operation, the sealing film is wound around the film take-up roller 14. When the sealing film needs to be applied, the film is unrolled from the film take-up roller 14 and guided to the film pressing roller 13 for application. The design of the film take-up roller 14 facilitates the storage and unrolling of the sealing film, reducing the complexity and labor intensity of manual operations. Furthermore, by continuously supplying sealing film, the application process is ensured to be continuous and efficient, thereby improving work efficiency.

[0030] In this embodiment, the adhesive delivery mechanism consists of an adhesive delivery pump 16, a diversion pipe 17, a roller brush 18, an adhesive nozzle 19 and an adhesive storage box 20. The adhesive storage box 20 is fixed on the left side of the second telescopic frame 6. The adhesive storage box 20 is used to store sufficient adhesive to provide a continuous supply for the entire delivery process. The adhesive storage box 20 is connected to the adhesive delivery pump 16 through a telescopic hose. The adhesive in the adhesive storage box 20 can be delivered to the adhesive delivery pump 16 through the telescopic hose, and at the same time can adapt to the telescopic movement of the telescopic frame to maintain the stability of the connection. The adhesive delivery pump 16 is fixed On the crossbeam plate 54 on the lower side of the second telescopic frame 6, multiple groups of adhesive nozzles 19 are evenly embedded at the bottom of the roller brush 18, with the outlet of the adhesive nozzle 19 facing the roller brush 18. The output end of the adhesive delivery pump 16 is connected to the adhesive nozzle 19 through a diverter pipe 17. The adhesive delivery pump 16 can extract adhesive from the storage tank and pressurize it into the diverter pipe 17. The diverter pipe 17 evenly distributes the adhesive to each adhesive nozzle 19 to ensure uniform application. The adhesive nozzle 19 sprays the adhesive onto the roller brush 18. As the roller brush 18 rolls, the adhesive is evenly applied to the surface of the pipe segment.

[0031] In actual use, the adhesive in the adhesive storage box 20 is transported to the adhesive delivery pump 16 through the telescopic hose. The adhesive delivery pump 16 pressurizes the adhesive and delivers it to the diversion pipe 17. The diversion pipe 17 evenly distributes the adhesive to each adhesive nozzle 19. The adhesive nozzle 19 sprays the adhesive onto the roller brush 18. During the rolling process, the roller brush 18 evenly applies the adhesive to the surface of the shield segment.

[0032] In this embodiment, the pressing mechanism 12 includes a rubber scraper 121, an articulated connecting rod 122, a tension spring 123 and an articulated seat 124. The rubber scraper 121 is arranged on the left side of the film pressing roller 13. After the film pressing roller 13 presses the sealing film, the rubber scraper 121 further flattens and compacts the sealing film to ensure that it fits tightly with the surface of the pipe segment. The rubber material has good elasticity and wear resistance, can adapt to the curved pipe segment surface, and protects the sealing film from damage. Two sets of articulated connecting rods 122 are fixed at the bottom of the rubber scraper 121, and the bottom of the film pressing roller 13 is fixed Two sets of hinged seats 124 are provided. The right end of the hinged connecting rod 122 is hinged to the hinged seat 124. A tension spring 123 is provided on the hinged connecting rod 122, and the right end of the tension spring 123 is connected to the film pressing roller 13. The tension spring 123 provides a certain pre-tightening force for the rubber scraper 121, so that the rubber scraper 121 can maintain a certain pressure during the lamination process to ensure the tight lamination of the sealing film. At the same time, the tension spring 123 cooperates with the hinged connecting rod 122 and the hinged seat 124 to allow the rubber scraper 121 to be fine-tuned during the lamination process to adapt to the arc changes on the surface of the pipe segment.

[0033] In actual use, after the lamination roller 13 presses the sealing film, the rubber scraper 121 moves with the lamination roller 13. Under the pre-tightening force of the tension spring 123, the rubber scraper 121 is tightly attached to the surface of the pipe segment and the sealing film. As the lamination roller 13 and the rubber scraper 121 move, the rubber scraper 121 further flattens and compacts the sealing film to ensure that it is tightly attached to the surface of the pipe segment.

[0034] In this embodiment, triangular reinforcement ribs 31 are welded at the connection between the left and right sides of the fixed bracket 2 and the base 3. The triangular structure has stable mechanical properties and can effectively resist external impact and deformation. The triangular reinforcement ribs 31 are welded at the connection between the fixed bracket 2 and the base 3, greatly enhancing the rigidity and stability of this area, ensuring the stability of the entire device during operation.

[0035] In this embodiment, E-shaped reinforcing brackets 15 are welded on both sides of the connection between the first telescopic frame 5, the rotating shaft sleeve 4 and the second telescopic frame 6. The E-shaped reinforcing bracket 15 not only increases the contact area of ​​the connection, but also disperses the stress through its unique shape, thereby improving the bearing capacity of the connection. At the same time, the firm connection between the first telescopic frame 5, the rotating shaft sleeve 4 and the second telescopic frame 6 structures enables the entire device to remain stable.

[0036] The working principle of the shield segment sealing film applying device:

[0037] In actual use, first, the device is fixedly mounted on the shield machine segment laying mechanism through the base 3, the adhesive is injected into the adhesive storage tank 20, and the sealing film is wound on the film winding roller 14;

[0038] Adjust the length of the second telescopic frame 6 according to the size of the shield segment so that the roller brush 18 contacts the segment surface. Start the adhesive delivery pump 16 and the reduction motor 8 at the same time, driving the second telescopic frame 6 to rotate along with the rotating sleeve 4, drawing adhesive from the storage tank and pressurizing it into the diversion pipe 17. The adhesive flows through the diversion pipe 17 into the adhesive nozzle 19, which sprays the adhesive onto the surface of the roller brush 18. As the roller brush 18 rolls, it evenly applies the adhesive to the surface of the shield segment.

[0039] After the coating is completed, the second telescopic frame 6 is controlled to retract, so that the roller brush 18 is separated from the surface of the shield segment. The sealing film is then unrolled from the film winding roller 14 and guided to the film pressing roller 13. The length of the first telescopic frame 5 is adjusted so that the film pressing roller 13 presses the sealing film against the surface of the shield segment. The film pressing roller 13 presses the sealing film against the surface of the shield segment coated with the adhesive. The reduction motor 8 is started, and the first telescopic frame 5 is driven to rotate via the drive shaft 11. The film pressing roller 13 follows the first telescopic frame 5 and moves along the surface of the segment, thereby pressing the sealing film against the surface of the shield segment. During this process, the rubber scraper 121 further flattens and compacts the sealing film after the film pressing roller 13 presses it, ensuring that it fits tightly against the surface of the segment.

[0040] In summary, the shield segment sealing film applying device can realize the automated, efficient and uniform application of the sealing film, greatly improving the construction efficiency and quality, and reducing the difficulty and labor intensity of manual operation.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A shield segment sealing film application device, comprising a fixing bracket (2) and a shaft cylinder (1), characterized in that: The shaft cylinder (1) is welded and fixed to the top of the fixed bracket (2), and a base (3) is fixed to the bottom of the fixed bracket (2). A rotatable drive shaft (11) is assembled inside the shaft cylinder (1) through a bearing, and the right half of the drive shaft (11) extends out of the shaft cylinder (1). A rotating sleeve (4) is provided on the right end of the drive shaft (11). A driven helical gear (10) is assembled on the drive shaft (11) near the shaft cylinder (1). A reduction motor (8) is mounted on the upper side of the shaft cylinder (1), and a driving helical gear (9) is mounted on the output end of the reduction motor (8). The helical gear (9) is meshed with the driven helical gear (10) for transmission connection. A first telescopic frame (5) is welded on the annular surface of the rotating shaft sleeve (4). A second telescopic frame (6) is fixed on the annular surface of the rotating shaft sleeve (4) on a side symmetrical to the first telescopic frame (5). A film pressing roller (13) for squeezing a sealing film is assembled at the end of the first telescopic frame (5). A pressing mechanism (12) parallel to the film pressing roller (13) is arranged on the left side of the film pressing roller (13). A roller brush (18) is arranged at the end of the second telescopic frame (6). An adhesive conveying mechanism for conveying adhesive is arranged on the inner side of the second telescopic frame (6).

2. The shield segment sealing film applying device according to claim 1, characterized in that: The specifications of the first telescopic frame (5) are the same as those of the second telescopic frame (6). The first telescopic frame (5) comprises a movable support arm (51), a fixed support arm (52), a hydraulic cylinder (53) and a crossbeam (54). The fixed support arm (52) is provided with two groups and is symmetrically fixed on the rotating shaft sleeve (4) near both ends. A movable support arm (51) that can be slidably adjusted is inserted inside the fixed support arm (52). The two groups of movable support arms (51) and the two groups of fixed support arms (52) are fixedly connected by a crossbeam (54), and the two groups of crossbeams (54) are connected by a hydraulic cylinder (53).

3. The shield segment sealing film applying device according to claim 2, characterized in that: A film winding roller (14) for storing the sealing film is provided on the right side of the first telescopic frame (5), and the film winding roller (14) is fixed on two sets of fixed support arms (52).

4. The shield segment sealing film applying device according to claim 1, characterized in that: The adhesive delivery mechanism consists of an adhesive delivery pump (16), a diverter pipe (17), a roller brush (18), an adhesive nozzle (19) and an adhesive storage box (20). The adhesive storage box (20) is fixed on the left side of the second telescopic frame (6). The adhesive storage box (20) is connected to the adhesive delivery pump (16) through a telescopic hose. The adhesive delivery pump (16) is fixed on the crossbeam plate (54) on the lower side of the second telescopic frame (6). A plurality of adhesive nozzles (19) are evenly embedded at the bottom of the roller brush (18), and the outlet of the adhesive nozzle (19) faces the roller brush (18). The output end of the adhesive delivery pump (16) is connected to the adhesive nozzle (19) through the diverter pipe (17).

5. The shield segment sealing film applying device according to claim 1, characterized in that: The pressing mechanism (12) comprises a rubber scraper (121), an articulated connecting rod (122), a tension spring (123) and an articulated seat (124); the rubber scraper (121) is arranged on the left side of the film pressing roller (13); two groups of articulated connecting rods (122) are fixedly provided at the bottom of the rubber scraper (121); two groups of articulated seats (124) are fixedly provided at the bottom of the film pressing roller (13); the right end of the articulated connecting rod (122) is articulated to the articulated seat (124); a tension spring (123) is provided on the articulated connecting rod (122), and the right end of the tension spring (123) is connected to the film pressing roller (13).

6. The shield segment sealing film applying device according to claim 1, characterized in that: Triangular reinforcement ribs (31) are welded at the connection points between the left and right sides of the fixed bracket (2) and the base (3); The left and right sides of the connection between the first telescopic frame (5), the rotating shaft sleeve (4) and the second telescopic frame (6) are welded with reinforcing pull frames (15) of an E-shaped structure.

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