Impermeable sealing assembly for connecting prefabricated aqueduct body

Abstract

The invention relates to the technical field of aqueduct construction, and particularly discloses an anti-permeation sealing assembly for connecting a prefabricated aqueduct body, the anti-permeation sealing assembly comprises a backwater sealing strip part, a water retaining strip part, an upstream sealing strip part and a pressing strip part, the backwater sealing strip part is arranged on the backwater surface of the water retaining strip part; the upstream sealing strip part is arranged on the upstream face of the water retaining strip part; the pressing strip component is arranged on the face, away from the water retaining strip component, of the water facing sealing strip component and used for pressing the water facing sealing strip component on the water facing face of the water retaining strip component, and the pressing strip component can push the first side edge of the water facing sealing strip component in the direction away from the first side edge of the water retaining strip component. The pressing strip component can push the second side edge of the upstream sealing strip component in the direction away from the second side edge of the water retaining strip component. According to the aqueduct, the sealing effect of the aqueduct seam can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of aqueduct construction, and in particular to an anti-penetration sealing assembly for connecting a prefabricated aqueduct body. Background Art

[0002] At present, aqueducts are widely used in water transport projects and long-distance water diversion projects in mountainous areas. Navigable aqueducts are often used in water transport projects, while high-pier and large-span aqueducts are often used in long-distance water diversion projects in mountainous areas. Aqueducts are formed by connecting multiple sections, and there are slots between two adjacent sections. In order to prevent water leakage at the slots, sealing structures are set at the slots.

[0003] In the related technology, a water-stopping structure for an aqueduct is disclosed, in which a sealing groove is opened at the groove of the inner wall of the aqueduct, and the sealing groove includes a first groove portion and a second groove portion, the first groove portion is located on the first side groove section of the groove, and the second groove portion is located on the second side groove section of the groove, and embedded steel plates, waterstops and pressure plates are sequentially arranged from the bottom of the sealing groove to the groove mouth, and the pressure plate cooperates with bolts to press the embedded steel plates and waterstops to the bottom of the sealing groove, one side edge of the waterstop is located at the first groove portion, and the other side edge of the waterstop is located at the second groove portion, thereby being able to seal the groove.

[0004] The above-mentioned related technologies have the following defects: the above-mentioned aqueduct water-stopping structure has only the water-stopping effect of the water-stopping strip, and the water-stopping effect is poor. Summary of the invention

[0005] In order to improve the sealing effect at the seams of aqueducts, the present application provides an anti-permeability sealing assembly for connecting the bodies of prefabricated aqueducts.

[0006] The present application provides an anti-permeation sealing assembly for connecting a prefabricated aqueduct body, which adopts the following technical solution: An anti-permeation sealing assembly for connecting a prefabricated aqueduct body, comprising a backwater sealing strip component, a water retaining strip component, a water-facing sealing strip component and a pressure strip component, wherein the backwater sealing strip component is arranged on the backwater surface of the water retaining strip component; The water-facing sealing strip component is arranged on the water-facing surface of the water retaining strip component; The pressure strip component is arranged on a side of the water-facing sealing strip component away from the water-blocking strip component, and is used to press the water-facing sealing strip component against the water-facing surface of the water-blocking strip component, and the pressure strip component can push the first side edge of the water-facing sealing strip component in a direction away from the first side edge of the water-blocking strip component, and the pressure strip component can push the second side edge of the water-facing sealing strip component in a direction away from the second side edge of the water-blocking strip component.

[0007] By adopting the above technical solution, when sealing the slot of the aqueduct, the anti-permeation sealing assembly is installed at the bottom of the slot where the seal is set. From the bottom of the slot where the seal is set to the slot mouth, a back-water sealing strip component, a water-retaining strip component, a water-facing sealing strip component and a pressure strip component are sequentially arranged. The water-retaining strip component presses a part of the back-water sealing strip component onto the bottom of the first slot, and the water-retaining strip component presses another part of the back-water sealing strip component onto the bottom of the second slot, forming a first seal on the slot. The pressure strip component presses the water-facing sealing strip component onto the water-facing surface of the water-retaining strip component, and presses a part of the water-facing sealing strip component onto the slot wall of the first slot, and presses another part of the water-facing sealing strip component onto the slot wall of the second slot, forming a second seal on the slot. Double sealing improves the sealing effect at the slot of the aqueduct.

[0008] Optionally, the water retaining strip component includes an arc-shaped water retaining strip, a first arc-shaped strip and a second arc-shaped strip, wherein the first arc-shaped strip and the second arc-shaped strip are both arranged on the outer arc surface of the arc-shaped water retaining strip, and the first arc-shaped strip and the second arc-shaped strip are both arranged along the length direction of the arc-shaped water retaining strip; A limiting groove is provided on the arc-shaped water retaining strip, the limiting groove is arranged along the length direction of the arc-shaped water retaining strip, and the limiting groove is located between the first arc-shaped strip and the second arc-shaped strip; The back water sealing strip component is arranged on the outer arc surface of the arc-shaped water retaining strip; The water-facing sealing strip component is arranged on the inner arc surface of the arc-shaped water retaining strip.

[0009] By adopting the above technical solution, when sealing the slot of the aqueduct, the arcuate water retaining strip presses a part of the back water sealing strip component on the bottom of the first slot, and the arcuate water retaining strip presses another part of the back water sealing strip component on the bottom of the second slot, forming a first seal of the slot. The limiting groove extends into the slot, which is used to limit the arcuate water retaining strip and enhance the strength of the arcuate water retaining strip. The first arcuate strip and the second arcuate strip are used to enhance the strength of both sides of the arcuate water retaining strip.

[0010] Optionally, the back water sealing strip component includes a first back water sealing strip, which is located between the limiting groove and the first arc strip, or / and located on a side of the first arc strip away from the limiting groove, and the first back water sealing strip is arranged along the length direction of the first arc strip.

[0011] By adopting the above technical solution, the first water-back sealing strip is used to seal the gap between the arc-shaped water retaining strip and the bottom of the first groove portion.

[0012] Optionally, the back water sealing strip component also includes a second back water sealing strip, which is located between the limiting groove and the second arc strip, or / and located on the side of the second arc strip away from the limiting groove, and the second back water sealing strip is arranged along the length direction of the second arc strip.

[0013] By adopting the above technical solution, the second water-back sealing strip is used to seal the gap between the arc-shaped water retaining strip and the bottom of the second groove portion.

[0014] Optionally, the water-facing sealing strip component includes a middle sealing strip, a first side sealing strip and a second side sealing strip, the middle sealing strip is arranged on the outer arc surface of the arc-shaped water retaining strip, the first side sealing strip is arranged on the first side edge of the middle sealing strip, and the second side sealing strip is arranged on the second side edge of the middle sealing strip, and the middle sealing strip, the first side sealing strip and the second side sealing strip are all arranged along the length direction of the arc-shaped water retaining strip; The pressure strip component is arranged on a side of the middle sealing strip away from the arcuate water retaining strip. The pressure strip component can press the middle sealing strip against the water-facing surface of the arcuate water retaining strip and can push the first side sealing strip and the second side sealing strip away from each other.

[0015] By adopting the above technical solution, the middle sealing strip is pressed against the water-facing surface of the arc-shaped water retaining strip through the pressure strip component, and the first side sealing strip is pressed against the first side groove wall of the sealing component setting groove, and the second side sealing strip is pressed against the second side groove wall of the sealing component setting groove, thereby forming a second seal for the groove.

[0016] Optionally, a limiting edge is provided on a side of the middle sealing strip close to the arc-shaped water retaining strip, the limiting edge is arranged along the length direction of the arc-shaped water retaining strip, and the limiting edge is located in the limiting groove.

[0017] By adopting the above technical solution, the limiting edge is used to limit the middle part of the middle sealing strip.

[0018] Optionally, the pressure strip component includes a first U-shaped pressure plate, and the first U-shaped pressure plate is arranged along the length direction of the arc-shaped water retaining strip; The bottom plate of the first U-shaped pressing plate contacts the middle sealing strip, and the first side plate of the first U-shaped pressing plate contacts the first side sealing strip.

[0019] By adopting the above technical solution, the bottom plate of the first U-shaped pressure plate is connected to the bottom of the first groove portion by bolts, and the bottom plate of the first U-shaped pressure plate presses the middle sealing strip against the water-facing surface of the arc-shaped water retaining strip, and the first side plate of the first U-shaped pressure plate presses the first side sealing strip against the first side groove wall of the sealing element setting groove.

[0020] Optionally, the pressure strip component further includes a second U-shaped pressure plate, and the second U-shaped pressure plate is arranged along the length direction of the arc-shaped water retaining strip; The bottom plate of the second U-shaped pressing plate contacts the middle sealing strip, and the first side plate of the second U-shaped pressing plate contacts the second side sealing strip.

[0021] By adopting the above technical solution, the bottom plate of the second U-shaped pressing plate is connected to the bottom of the second groove portion by bolts, and the bottom plate of the second U-shaped pressing plate presses the middle sealing strip on the water-facing surface of the arc-shaped water retaining strip, and the second side plate of the second U-shaped pressing plate presses the second side sealing strip on the second side groove wall of the sealing element setting groove, thereby forming a second seal on the groove.

[0022] Optionally, the bottom plate of the first U-shaped pressure plate is provided with a plurality of first oblong holes, and the first oblong holes are used to install first bolts. After the first screw rod of the first bolt passes through the first oblong hole, the first side edge of the middle sealing strip, the first side edge of the arc-shaped water retaining strip, the first arc-shaped strip and the first back water sealing strip in sequence, the first screw rod is fixed on the aqueduct.

[0023] By adopting the above technical solution, after the first screw rod of the first bolt passes through the first oblong hole, the first side edge of the middle sealing strip, the first arc strip and the first back water sealing strip in sequence, the first screw rod is fixed on the aqueduct. Then, the first head of the first bolt presses the first U-shaped pressure plate, the first side edge of the middle sealing strip, the first side edge of the arc water retaining strip, the first arc strip part and the first back water sealing strip onto the bottom of the first groove portion.

[0024] Optionally, the bottom plate of the second U-shaped pressure plate is provided with a plurality of second oblong holes, and the second oblong holes are used to install second bolts. After the second screw rod of the second bolt passes through the second oblong hole, the second side edge of the middle sealing strip, the second side edge of the arc-shaped water retaining strip, the second arc-shaped strip and the second back water sealing strip in sequence, the second screw rod is fixed on the aqueduct.

[0025] By adopting the above technical solution, the second screw of the second bolt passes through the second oblong hole, the second side edge of the middle sealing strip, the second arc strip and the second back water sealing strip in sequence, and then the second screw is fixed on the aqueduct. Then the second head of the second bolt presses the second U-shaped pressure plate, the second side edge of the middle sealing strip, the second side edge of the arc water retaining strip, the second arc strip part and the second back water sealing strip on the bottom of the second groove.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, the groove seam can be double sealed, thereby improving the sealing effect at the groove seam of the aqueduct.

[0027] 2. In the present application, the first back water sealing strip is used to seal the gap between the arc-shaped water retaining strip and the bottom of the first groove, and the second back water sealing strip is used to seal the gap between the arc-shaped water retaining strip and the bottom of the second groove, thereby forming a first seal on the groove.

[0028] 3. In the present application, the middle sealing strip is pressed against the water-facing surface of the arc-shaped water retaining strip by means of a pressure strip component, and the first side sealing strip is pressed against the first side groove wall of the sealing component setting groove, and the second side sealing strip is pressed against the second side groove wall of the sealing component setting groove, thereby forming a second seal for the groove.

[0029] 4. In the present application, the limiting groove extends into the slot to limit the arc-shaped water retaining strip and enhance the strength of the arc-shaped water retaining strip.

[0030] 5. In the present application, the first arc strip and the second arc strip are used to enhance the strength of both sides of the arc-shaped water retaining strip.

[0031] 6. The limiting edge in this application is used to limit the middle part of the middle sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a schematic diagram of the assembly structure of the aqueduct, the first sealing filler, the second sealing filler and the anti-permeation sealing component; Figure 2 It is a schematic diagram of the assembly structure of the aqueduct and the anti-penetration sealing component; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 yes Figure 2 An enlarged schematic diagram of a section of the structure of the middle layering component.

[0034] Reference numerals: 1. Aqueduct; 10. Sealing groove; 101. First groove; 102. Second groove; 100. Slot; 11. First side groove; 12. Second side groove; 13. First sealing filler; 14. Second sealing filler; 2. Back water sealing strip component; 21. First back water sealing strip; 211. First clamp; 22. Second back water sealing strip; 221. Second clamp; 3. Water retaining strip component; 30. Arc Water retaining strip; 300, limiting groove; 31, first arc strip; 311, first clamping groove; 32, second arc strip; 321, second clamping groove; 4, water-facing sealing strip component; 40, middle sealing strip; 400, limiting edge; 41, first side sealing strip; 42, second side sealing strip; 5, pressure strip component; 51, first U-shaped pressure plate; 5101, first oblong hole; 52, second U-shaped pressure plate; 5201, second oblong hole. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] Reference Figure 1 and Figure 2 As shown, the aqueduct 1 is formed by connecting multiple slot sections, and there is a slot gap 100 between two adjacent slot sections. In order to prevent water leakage at the slot gap 100, an anti-permeation sealing component is set at the slot gap 100. In order to facilitate the description of the installation of the anti-permeation sealing component, the slot section on one side of the slot gap 100 is set as the first side slot section 11, and the slot section on the other side of the slot gap 100 is set as the second side slot section 12. When setting the anti-permeation sealing component, a sealing component setting groove 10 is opened at the slot gap 100 on the inner wall of the aqueduct 1, and the sealing component setting groove 10 includes a first setting groove portion 101 and a second setting groove portion 102. The first setting groove portion 101 is located on the first side slot section 11, and the second setting groove portion 102 is located on the second side slot section 12.

[0037] The embodiment of the present application discloses an anti-permeation sealing assembly for connecting the body of a prefabricated aqueduct 1 .

[0038] Reference Figure 2 and Figure 3, an anti-permeation sealing assembly for connecting the body of a prefabricated aqueduct 1 comprises a back-water sealing strip component 2, a water retaining strip component 3, a water-facing sealing strip component 4 and a pressure strip component 5. When sealing the slot 100 of the aqueduct 1, the anti-permeation sealing assembly is installed at the bottom of the sealing component setting slot 10. From the bottom of the sealing component setting slot 10 to the slot mouth, the back-water sealing strip component 2, the water retaining strip component 3, the water-facing sealing strip component 4 and the pressure strip component 5 are sequentially arranged. The back-water sealing strip component 2 is arranged on the back-water surface of the water retaining strip component 3, and the water retaining strip component 3 presses a part of the back-water sealing strip component 2 on the bottom of the first setting slot 101, and the water retaining strip component 3 presses another part of the back-water sealing strip component 2 on the bottom of the second setting slot 102, forming the first sealing of the slot 100. The water-facing sealing strip component 4 is arranged on the water-facing surface of the water-blocking strip component 3, and the pressure strip component 5 is arranged on the side of the water-facing sealing strip component 4 away from the water-blocking strip component 3, and is used to press the water-facing sealing strip component 4 on the water-facing surface of the water-blocking strip component 3, and the pressure strip component 5 can push the first side edge of the water-facing sealing strip component 4 in the direction away from the first side edge of the water-blocking strip component 3, and the pressure strip component 5 can push the second side edge of the water-facing sealing strip component 4 in the direction away from the second side edge of the water-blocking strip component 3. The pressure strip component 5 presses the water-facing sealing strip component 4 on the water-facing surface of the water-blocking strip component 3, and presses a part of the water-facing sealing strip component 4 on the first side groove wall of the sealing component setting groove 10, and presses another part of the water-facing sealing strip component 4 on the second side groove wall of the sealing component setting groove 10, forming a second seal on the slot 100. Double sealing improves the sealing effect at the slot 100 of the aqueduct 1.

[0039] Reference Figure 2 and Figure 3 The water retaining strip component 3 includes an arcuate water retaining strip 30, a first arcuate strip 31 and a second arcuate strip 32. The first arcuate strip 31 and the second arcuate strip 32 are both arranged on the outer arcuate surface of the arcuate water retaining strip 30. The first arcuate strip 31 and the second arcuate strip 32 are both arranged along the length direction of the arcuate water retaining strip 30. A limiting groove 300 is arranged on the arcuate water retaining strip 30. The limiting groove 300 is formed by bending the plate body in the middle of the arcuate water retaining strip 30. The limiting groove 300 is arranged along the length direction of the arcuate water retaining strip 30. The limiting groove 300 is located between the first arcuate strip 31 and the second arcuate strip 32. The back water sealing strip component 2 is arranged on the outer arcuate surface of the arcuate water retaining strip 30, and the front water sealing strip component 4 is arranged on the inner arcuate surface of the arcuate water retaining strip 30.

[0040] Reference Figure 2 and Figure 3In the embodiment of the present application, when the slot 100 of the aqueduct 1 is sealed, the arcuate water retaining strip 30 presses a part of the back water sealing strip component 2 on the bottom of the first groove 101, and the arcuate water retaining strip 30 presses another part of the back water sealing strip component 2 on the bottom of the second groove 102, forming a first seal of the slot 100. The part of the arcuate water retaining strip 30 that is bent to form the limiting groove 300 extends into the slot 100, which is used to limit the arcuate water retaining strip 30 and enhance the strength of the arcuate water retaining strip 30. The first arcuate strip 31 and the second arcuate strip 32 are used to enhance the strength of both sides of the arcuate water retaining strip 30.

[0041] Reference Figure 2 and Figure 3 The back water sealing strip component 2 includes a first back water sealing strip 21 and a second back water sealing strip 22. The first back water sealing strip 21 is located between the limiting groove 300 and the first arc strip 31, or / and located on the side of the first arc strip 31 away from the limiting groove 300. The first back water sealing strip 21 is used to seal the gap between the arc-shaped water retaining strip 30 and the bottom of the first groove 101. The first back water sealing strip 21 is arranged along the length direction of the first arc strip 31. The first back water sealing strip 21 is provided with a first clamping block 211, and the first arc strip 31 is provided with a first clamping groove 311. The first clamping block 211 is embedded in the first clamping groove 311, and is used to perform preliminary limiting between the first back water sealing strip 21 and the first arc strip 31. The second back-water sealing strip 22 is located between the limiting edge 400 and the second arc strip 32, or / and located on the side of the second arc strip 32 away from the limiting edge 400. The second back-water sealing strip 22 is arranged along the length direction of the second arc strip 32. The second back-water sealing strip 22 is used to seal the gap between the arc-shaped water retaining strip 30 and the bottom of the second groove 102. The second back-water sealing strip 22 is provided with a second clamping block 221, and the second arc strip 32 is provided with a second clamping groove 321. The second clamping block 221 is embedded in the second clamping groove 321, and is used to perform preliminary limiting between the second back-water sealing strip 22 and the second arc strip 32.

[0042] Reference Figure 2 , Figure 3 and Figure 4The water-facing sealing strip component 4 includes a middle sealing strip 40, a first side sealing strip 41 and a second side sealing strip 42. The middle sealing strip 40 is arranged on the outer arc surface of the arc-shaped water retaining strip 30. A limiting ridge 400 is arranged on a side of the middle sealing strip 40 close to the arc-shaped water retaining strip 30. The limiting ridge 400 is arranged along the length direction of the arc-shaped water retaining strip 30. The limiting ridge 400 is located in the limiting groove 300. The limiting ridge 400 is used to limit the middle part of the middle sealing strip 40. The first side sealing strip 41 is arranged on the first side edge of the middle sealing strip 40, and the second side sealing strip 42 is arranged on the second side edge of the middle sealing strip 40. The middle sealing strip 40, the first side sealing strip 41 and the second side sealing strip 42 are all arranged along the length direction of the arc-shaped water retaining strip 30. The pressure strip component 5 is arranged on a side of the middle sealing strip 40 away from the arc-shaped water retaining strip 30 . The pressure strip component 5 can press the middle sealing strip 40 against the water-facing side of the arc-shaped water retaining strip 30 and push the first side sealing strip 41 and the second side sealing strip 42 away from each other.

[0043] Reference Figure 2 , Figure 3 and Figure 4 In the embodiment of the present application, the middle sealing strip 40 is pressed against the water-facing surface of the arc-shaped water retaining strip 30 by the pressure strip component 5, and the first side sealing strip 41 is pressed against the first side groove wall of the sealing component setting groove 10, and the second side sealing strip 42 is pressed against the second side groove wall of the sealing component setting groove 10, thereby forming a second seal for the slot 100.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The pressure strip component 5 includes a first U-shaped pressure plate 51 and a second U-shaped pressure plate 52, and the first U-shaped pressure plate 51 and the second U-shaped pressure plate 52 are both arranged along the length direction of the arc-shaped water retaining strip 30. The bottom plate of the first U-shaped pressure plate 51 contacts the middle sealing strip 40, and the first side plate of the first U-shaped pressure plate 51 contacts the first side sealing strip 41. The bottom plate of the second U-shaped pressure plate 52 contacts the middle sealing strip 40, and the first side plate of the second U-shaped pressure plate 52 contacts the second side sealing strip 42.

[0045] Reference Figure 2 , Figure 3 and Figure 4In the embodiment of the present application, when installing the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52, a support plate is firstly provided on the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52, and one end of the support plate abuts against the first U-shaped pressing plate 51, so that the first side plate of the first U-shaped pressing plate 51 presses the first side sealing strip 41 against the first side groove wall of the sealing component setting groove 10. The other end of the support plate abuts against the second U-shaped pressing plate 52, and the second side plate of the second U-shaped pressing plate 52 presses the second side sealing strip 42 against the second side groove wall of the sealing component setting groove 10. Then, the bottom plate of the first U-shaped pressing plate 51 is connected to the bottom of the first setting groove portion 101 by bolts, and the bottom plate of the first U-shaped pressing plate 51 presses the middle sealing strip 40 against the water-facing surface of the arc-shaped water retaining strip 30. The bottom plate of the second U-shaped pressing plate 52 is connected to the bottom of the second groove 102 by bolts, and the bottom plate of the second U-shaped pressing plate 52 presses the middle sealing strip 40 on the water-facing surface of the arc-shaped water retaining strip 30, thereby forming a second seal for the slot 100. After the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52 are installed, the support plate is removed.

[0046] Reference Figure 2 , Figure 3 and Figure 4 The bottom plate of the first U-shaped pressing plate 51 is provided with a plurality of first oblong holes 5101, and the first oblong holes 5101 are used to install the first bolt. After the first screw of the first bolt passes through the first oblong hole 5101, the first side edge of the middle sealing strip 40, the first side edge of the arc-shaped water retaining strip 30, the first arc strip 31 and the first back water sealing strip 21 in sequence, the first screw is fixed on the aqueduct 1. The bottom plate of the second U-shaped pressing plate 52 is provided with a plurality of second oblong holes 5201, and the second oblong holes 5201 are used to install the second bolt. After the second screw of the second bolt passes through the second oblong hole 5201, the second side edge of the middle sealing strip 40, the second side edge of the arc-shaped water retaining strip 30, the second arc strip 32 and the second back water sealing strip 22 in sequence, the second screw is fixed on the aqueduct 1.

[0047] Reference Figure 2 , Figure 3 and Figure 4In the embodiment of the present application, since the first side plate of the first U-shaped pressing plate 51 needs to press the first side sealing strip 41 on the first side groove wall of the sealing member setting groove 10. The second side plate of the second U-shaped pressing plate 52 needs to press the second side sealing strip 42 on the second side groove wall of the sealing member setting groove 10, the spacing between the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52 needs to be adjusted, and the first oblong hole 5101 and the second oblong hole 5201 are used to adapt to the spacing adjustment of the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52. After the first screw of the first bolt passes through the first oblong hole 5101, the first side edge of the middle sealing strip 40, the first arc strip 31 and the first back water sealing strip 21 in sequence, the first screw is fixed on the aqueduct 1. Then, the first head of the first bolt presses the first U-shaped pressing plate 51, the first side edge of the middle sealing strip 40, the first side edge of the arc-shaped water retaining strip 30, the first arc strip 31 and the first back water sealing strip 21 on the bottom of the first setting groove 101. After the second screw rod of the second bolt passes through the second oblong hole 5201, the second side edge of the middle sealing strip 40, the second arc strip 32 and the second back water sealing strip 22 in sequence, the second screw rod is fixed on the aqueduct 1. Then, the second head of the second bolt presses the second U-shaped pressing plate 52, the second side edge of the middle sealing strip 40, the second side edge of the arc-shaped water retaining strip 30, the second arc strip 32 and the second back water sealing strip 22 on the bottom of the second groove 102.

[0048] The implementation principle of an anti-permeation sealing assembly for connecting the body of a prefabricated aqueduct 1 in the embodiment of the present application is as follows: When sealing the slot 100 of the aqueduct 1, the anti-permeation sealing assembly is installed at the bottom of the sealing member setting slot 10. From the bottom of the sealing member setting slot 10 to the slot mouth, the back water sealing strip component 2, the water retaining strip component 3, the front water sealing strip component 4 and the pressure strip component 5 are sequentially arranged.

[0049] The portion of the arcuate water retaining strip 30 that is bent to form the limiting groove 300 extends into the slot 100, and is used to limit the arcuate water retaining strip 30 and enhance the strength of the arcuate water retaining strip 30. The arcuate water retaining strip 30 presses the first back water sealing strip 21 to the bottom of the first groove portion 101, and the first back water sealing strip 21 is used to seal the gap between the arcuate water retaining strip 30 and the bottom of the first groove portion 101. The arcuate water retaining strip 30 presses the second back water sealing strip 22 to the bottom of the second groove portion 102, and the second back water sealing strip 22 is used to seal the gap between the arcuate water retaining strip 30 and the bottom of the second groove portion 102. The first seal of the slot 100 is formed.

[0050] The bottom plate of the first U-shaped pressing plate 51 is connected to the bottom of the first groove 101 by bolts, and the bottom plate of the first U-shaped pressing plate 51 presses the middle sealing strip 40 on the water-facing surface of the arc-shaped water retaining strip 30, and the first side plate of the first U-shaped pressing plate 51 presses the first side sealing strip 41 on the first side groove wall of the sealing member setting groove 10. The bottom plate of the second U-shaped pressing plate 52 is connected to the bottom of the second groove 102 by bolts, and the bottom plate of the second U-shaped pressing plate 52 presses the middle sealing strip 40 on the water-facing surface of the arc-shaped water retaining strip 30, and the second side plate of the second U-shaped pressing plate 52 presses the second side sealing strip 42 on the second side groove wall of the sealing member setting groove 10. Thus, a second seal of the slot 100 is formed.

[0051] When installing the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52, firstly, a support plate is set on the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52, and one end of the support plate is against the first U-shaped pressing plate 51, so that the first side plate of the first U-shaped pressing plate 51 presses the first side sealing strip 41 on the first side groove wall of the sealing member setting groove 10. The other end of the support plate is against the second U-shaped pressing plate 52, and the second side plate of the second U-shaped pressing plate 52 presses the second side sealing strip 42 on the second side groove wall of the sealing member setting groove 10. Then, the bottom plate of the first U-shaped pressing plate 51 is connected to the bottom of the first setting groove portion 101 by bolts, and the bottom plate of the first U-shaped pressing plate 51 presses the middle sealing strip 40 on the water-facing surface of the arc-shaped water retaining strip 30. The bottom plate of the second U-shaped pressing plate 52 is connected to the bottom of the second setting groove portion 102 by bolts, and the bottom plate of the second U-shaped pressing plate 52 presses the middle sealing strip 40 on the water-facing surface of the arc-shaped water retaining strip 30. This forms a second seal for the slot 100. After the first U-shaped pressing plate 51 and the second U-shaped pressing plate 52 are installed, the support plate is removed.

[0052] After the anti-penetration sealing assembly is installed, the caulking is performed, and the first sealing filler 13 is filled into the sealing member setting groove 10 above the anti-penetration sealing assembly, and the second sealing filler 14 is filled into the groove 100. The first sealing filler 13 and the second sealing filler 14 both include an acrylic mortar layer and a polysulfide sealant layer, and the acrylic mortar layer is arranged close to the anti-penetration sealing assembly.

[0053] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-permeation sealing assembly for connecting a prefabricated aqueduct body, characterized in that: It comprises a back-water sealing strip component (2), a water retaining strip component (3), a front-water sealing strip component (4) and a pressure strip component (5), wherein the back-water sealing strip component (2) is arranged on the back-water surface of the water retaining strip component (3); The water-facing sealing strip component (4) is arranged on the water-facing surface of the water retaining strip component (3); The pressure strip component (5) is arranged on a side of the water-facing sealing strip component (4) away from the water-blocking strip component (3) and is used to press the water-facing sealing strip component (4) against the water-facing surface of the water-blocking strip component (3); the pressure strip component (5) can push the first side edge of the water-facing sealing strip component (4) in a direction away from the first side edge of the water-blocking strip component (3); and the pressure strip component (5) can push the second side edge of the water-facing sealing strip component (4) in a direction away from the second side edge of the water-blocking strip component (3).

2. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 1, characterized in that: The water retaining strip component (3) comprises an arc-shaped water retaining strip (30), a first arc-shaped strip (31) and a second arc-shaped strip (32), wherein the first arc-shaped strip (31) and the second arc-shaped strip (32) are both arranged on the outer arc surface of the arc-shaped water retaining strip (30), and the first arc-shaped strip (31) and the second arc-shaped strip (32) are both arranged along the length direction of the arc-shaped water retaining strip (30); A limiting groove (300) is provided on the arc-shaped water retaining strip (30), the limiting groove (300) is arranged along the length direction of the arc-shaped water retaining strip (30), and the limiting groove (300) is located between the first arc-shaped strip (31) and the second arc-shaped strip (32); The water-retaining sealing strip component (2) is arranged on the outer arc surface of the arc-shaped water retaining strip (30); The water-facing sealing strip component (4) is arranged on the inner arc surface of the arc-shaped water retaining strip (30).

3. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 2, characterized in that: The back water sealing strip component (2) comprises a first back water sealing strip (21), the first back water sealing strip (21) being located between the limiting groove (300) and the first arc strip (31), or / and being located on a side of the first arc strip (31) away from the limiting groove (300), and the first back water sealing strip (21) being arranged along the length direction of the first arc strip (31).

4. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 3, characterized in that: The back water sealing strip component (2) further comprises a second back water sealing strip (22), wherein the second back water sealing strip (22) is located between the limiting groove (300) and the second arc strip (32), or / and is located on a side of the second arc strip (32) away from the limiting groove (300), and the second back water sealing strip (22) is arranged along the length direction of the second arc strip (32).

5. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 2, characterized in that: The water-facing sealing strip component (4) comprises a middle sealing strip (40), a first side sealing strip (41) and a second side sealing strip (42); the middle sealing strip (40) is arranged on the outer arc surface of the arc-shaped water retaining strip (30); the first side sealing strip (41) is arranged on the first side edge of the middle sealing strip (40); the second side sealing strip (42) is arranged on the second side edge of the middle sealing strip (40); the middle sealing strip (40), the first side sealing strip (41) and the second side sealing strip (42) are all arranged along the length direction of the arc-shaped water retaining strip (30); The pressure strip component (5) is arranged on a side of the middle sealing strip (40) away from the arc-shaped water retaining strip (30); the pressure strip component (5) can press the middle sealing strip (40) against the water-facing surface of the arc-shaped water retaining strip (30), and can push the first side sealing strip (41) and the second side sealing strip (42) away from each other.

6. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 5, characterized in that: A limiting edge (400) is provided on one side of the middle sealing strip (40) close to the arc-shaped water retaining strip (30), the limiting edge (400) is arranged along the length direction of the arc-shaped water retaining strip (30), and the limiting edge (400) is located in the limiting groove (300).

7. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 5, characterized in that: The pressure strip component (5) comprises a first U-shaped pressure plate (51), and the first U-shaped pressure plate (51) is arranged along the length direction of the arc-shaped water retaining strip (30); The bottom plate of the first U-shaped pressing plate (51) contacts the middle sealing strip (40), and the first side plate of the first U-shaped pressing plate (51) contacts the first side sealing strip (41).

8. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 7, characterized in that: The pressure strip component (5) further comprises a second U-shaped pressure plate (52), and the second U-shaped pressure plate (52) is arranged along the length direction of the arc-shaped water retaining strip (30); The bottom plate of the second U-shaped pressing plate (52) contacts the middle sealing strip (40), and the first side plate of the second U-shaped pressing plate (52) contacts the second side sealing strip (42).

9. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 8, characterized in that: The bottom plate of the first U-shaped pressure plate (51) is provided with a plurality of first oblong holes (5101), the first oblong holes (5101) being used for installing first bolts, and after the first screw rod of the first bolt passes through the first oblong hole (5101), the first side edge of the middle sealing strip (40), the first side edge of the arc-shaped water retaining strip (30), the first arc-shaped strip (31) and the first back water sealing strip (21) in sequence, the first screw rod is fixed on the aqueduct.

10. The anti-permeation sealing assembly for connecting the prefabricated aqueduct body according to claim 9, characterized in that: The bottom plate of the second U-shaped pressure plate (52) is provided with a plurality of second oblong holes (5201), the second oblong holes (5201) being used for mounting second bolts, and after the second screw rod of the second bolt passes through the second oblong hole (5201), the second side edge of the middle sealing strip (40), the second side edge of the arc-shaped water retaining strip (30), the second arc-shaped strip (32) and the second back water sealing strip (22) in sequence, the second screw rod is fixed on the aqueduct.

Images