Basement outer wall construction joint waterproof structure

Abstract

The invention relates to the technical field of outer wall waterproof structures, and provides a basement outer wall construction joint waterproof structure which comprises a first sealing assembly and a second sealing assembly, the first sealing assembly is arranged on the outer side of an outer wall construction joint, the second sealing assembly is arranged on the inner side of the outer wall construction joint, and a drainage pipe is arranged below the first sealing assembly. A piston plate is movably arranged in the drainage pipe in a sealed mode, a water guide pipe is arranged in the concrete pre-pouring wall body, the upper end of the water guide pipe is flatly laid on the bottom face of a construction joint, and the lower end of the water guide pipe is arranged in the drainage pipe. A guide wheel is arranged on the top of the concrete pre-pouring wall body, a first tensioning steel wire and a second tensioning steel wire are arranged on the back of the first sealing assembly and the back of the second sealing assembly respectively, and the first tensioning steel wire is connected with the piston plate after bypassing the guide wheel. The second tensioning steel wire penetrates through the guide wheel and then is connected with the piston plate. The waterproof structure is good in waterproof effect and capable of rapidly draining rainwater.

Description

Technical Field

[0001] The present application belongs to the technical field of exterior wall waterproof structures, and more specifically, to a waterproof structure for construction joints of exterior walls of basements. Background Art

[0002] A basement is a room whose floor is lower than the outdoor ground level by more than half of the room's net height. Multi-story and high-rise buildings require a deeper foundation. To utilize this height, a basement is built under the bottom floor of the building. Building a basement below the bottom floor of a house can improve the efficiency of building land. Some high-rise buildings have a large buried depth. Making full use of this depth to build a basement has excellent economic and usage effects. Basements are divided into ordinary basements and empty basements according to their functions; they are divided into brick wall structure and concrete structure basements according to structural materials; and they are divided into full basements and semi-basements according to structural forms. A construction joint refers to the joint formed between the first and last poured concrete during the concrete pouring process due to design requirements or construction needs. A construction joint is not a real "joint". It is just that the first poured concrete exceeds the initial setting time, and there is a bonding surface between it and the later poured concrete. This bonding surface is called a construction joint. At the construction joint, because the basement's exterior wall is relatively low, it is easily eroded by external moisture, so a waterproof structure is needed to reduce rainwater erosion.

[0003] In order to reduce water ingress into the construction joint, the present application provides a waterproof structure for the construction joint of the outer wall of a basement. Summary of the invention

[0004] In view of the need for waterproofing of construction joints in the prior art, an object of the embodiments of the present application is to provide a waterproof structure for construction joints of basement exterior walls, which has good waterproofing effect and can quickly drain rainwater.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a waterproof structure of the construction joint of the outer wall of the basement, the outer wall includes: a concrete first-cast wall and a concrete second-cast wall, including: a first sealing component and a second sealing component, the first sealing component is arranged on the outer side of the construction joint of the outer wall, the second sealing component is arranged on the inner side of the construction joint of the outer wall, a drainage pipe is arranged below the first sealing component, a piston plate is arranged in the movable seal in the drainage pipe, a water guide pipe is arranged in the concrete first-cast wall, the upper end of the water guide pipe is laid flat on the bottom surface of the construction joint, and the lower end of the water guide pipe is arranged in the drainage pipe; a rope pipe is pre-buried in the outer wall, and the axis of the rope pipe coincides with the plane formed by the construction joint;

[0006] A guide wheel is provided in the rope-walking tube, and a first tensioning wire and a second tensioning wire are provided on the back of the first sealing assembly and the second sealing assembly respectively. The first tensioning wire is connected to the piston plate after passing around the guide wheel, and the second tensioning wire is connected to the piston plate after passing through the rope-walking tube.

[0007] In one embodiment, a filter screen is provided in the upper portion of the drain pipe.

[0008] In one embodiment, a closed end is provided at the bottom end of the drain pipe, and a support spring is provided inside the drain pipe, one end of the support spring abuts against the closed end, and the other end supports the piston plate; the first tensioning wire and the second tensioning wire movably pass through the axis of the filter screen and are connected to the axis of the piston plate, and the gravity of the piston plate and the elastic force of the support spring are in a balanced state; when rainwater is collected inside the drain pipe, under the action of the gravity of the rainwater, the piston plate presses the support spring downward, so that the piston plate drives the first sealing assembly and the second sealing assembly to be pressed in the direction of the construction joint through the first tensioning wire and the second tensioning wire, thereby sealing the edge of the construction joint.

[0009] In one embodiment, a plurality of circles of drainage holes are provided on the side wall of the drainage pipe along the axial direction thereof at intervals, and the drainage holes are located above the piston plate in a balanced state.

[0010] In one embodiment, the first sealing component and the second sealing component are both sealing strips with a V-shaped cross-section, the edge of the construction joint is provided with a V-shaped groove, and the top angle of the sealing strip is set toward the inside of the construction joint; a connecting spring is provided between the upper outer side surface of the sealing strip of the first sealing component and the outer wall, and the axis of the connecting spring is perpendicular to the upper outer side surface of the sealing strip.

[0011] In one embodiment, two limit strips are protrudingly provided on the inner side of the opening of the sealing strip of the first sealing assembly, and the two limit strips enclose a accommodating space on the inner side of the opening of the sealing strip. A water absorption expansion strip is provided in the accommodating space, and the upper side wall of the sealing strip is provided with a water inlet gap connected to the accommodating space, and the lower side wall of the sealing strip is provided with a water outlet gap connected to the accommodating space, the upper end of the water inlet gap is located on the outside of the outer wall, and the lower end of the water outlet gap is located on the outside of the outer wall.

[0012] In one embodiment, an accommodating groove is provided on the upper side wall of the sealing strip of the first sealing assembly, and the accommodating groove is located below the water inlet gap. A movable block is provided between the accommodating groove and the water inlet gap, and the upper side wall of the sealing strip is deformed by external force to seal the water inlet gap through the movable block.

[0013] In one embodiment, there is an opening between the two limiting strips.

[0014] In one embodiment, a connecting block is provided in the opening of the sealing strip of the second sealing assembly, and the second tensioning wire movably passes through the connecting block. A locking nut is threadedly connected to the connecting block. When the locking nut is tightened with the connecting block, the position of the second tensioning wire and the connecting block is fixed.

[0015] In one embodiment, the sealing strip is made of rubber or silicone.

[0016] The beneficial effects of the basement exterior wall construction joint waterproof structure provided by the present application are: 1. The construction joints on both sides of the exterior wall can be sealed and waterproofed by the first sealing component and the second sealing component; 2. Rainwater entering the construction joint can be quickly discharged through the water pipe and drainage pipe; 3. Through the piston plate and the tension wire in the drain pipe, when rainwater accumulates in the drain pipe, the piston plate slides downward under the action of gravity, driving the tension wire to pull down, so that the first sealing component and the second sealing component tightly seal the construction joint to prevent rainwater from continuing to enter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art 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 paying any creative work.

[0018] Figure 1 A schematic diagram of the overall outer structure of the basement exterior wall construction joint waterproof structure provided in an embodiment of the present application; Figure 2 A schematic diagram of the overall structure of the inner side of the waterproof structure of the basement exterior wall construction joint provided in an embodiment of the present application; Figure 3 A schematic diagram of the outer main structure of the basement exterior wall construction joint waterproof structure provided in an embodiment of the present application; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 for Figure 4 The enlarged view of point B in the middle; Figure 6 for Figure 4 Enlarged view of point C in the middle; Figure 7 for Figure 4 The enlarged view of point D in the middle; Figure 8 for Figure 4Enlarged view of point E in the middle; Fig. 9 A schematic diagram of the three-dimensional structure of a rope-walking tube provided in an embodiment of the present application.

[0019] Among them, the reference numerals in the figure are: 101. Concrete is poured into the wall first; 102. Concrete is poured into the wall later; 1. First sealing assembly; 2. Second sealing assembly; 3. Drain pipe; 4. Filter screen; 5. Water guide pipe; 6. Guide wheel; 7. Tension wire; 8. Drain hole; 9. Support spring; 10. Piston plate; 11. Connecting spring; 12. Limiting strip; 13. Accommodating space; 14. Water absorption expansion strip; 15. Accommodating groove; 16. Movable block; 17. Connecting block; 18. Locking nut; 19. Water inlet gap; 20. Water outlet gap; 21. Rope running tube; 22. Rope passing hole. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] like Figure 1-Figure 9As shown, a waterproof structure for a construction joint of a basement exterior wall provided in an embodiment of the present application is now described. The waterproof structure for the construction joint of the basement exterior wall is arranged at the construction joint, wherein the construction joint is located at the junction of the concrete first cast wall 101 and the concrete post-construction wall 102 of the exterior wall. In the actual construction process, a supporting structure such as an angle steel may be provided at the outer edges of the concrete first cast wall 101 and the concrete post-construction wall 102, so that the edges of the two walls are in a separated state, that is, a portion of the wall is concave inward at the edge of the construction joint, specifically forming a V-shaped groove, the purpose of which is to match the V-shaped sealing strip described below. In this embodiment, the waterproof structure for the construction joint of the basement exterior wall includes: a first sealing component 1 and a second sealing component 2. Among them, the first sealing component 1 is arranged on the outside of the exterior wall construction joint, and the second sealing component 2 is arranged on the inside of the exterior wall construction joint. A drain pipe 3 is provided below the first sealing component 1, and a piston plate 10 is provided in the drain pipe 3 as a movable seal. A water pipe 5 is provided in the concrete first cast wall 101, and the upper end of the water pipe 5 is laid flat on the bottom surface of the construction joint, and the lower end of the water pipe 5 is provided in the drain pipe 3; that is, if there is water in the construction joint, the water in the construction joint can flow into the drain pipe 3 through the water pipe 5, and the water flowing into the drain pipe 3 can increase the weight of the piston plate 10, and the piston plate 10 will slide downward. At the same time, the water pipe 5 is also used to guide the tensioning wire. A rope-running pipe 21 is pre-buried in the outer wall, and a rope-passing hole 22 is provided on the rope-running pipe 21; the axis of the rope-running pipe 21 coincides with the plane formed by the construction joint.

[0025] Among them, a guide wheel 6 is provided in the rope-running tube 21, and the guide wheel 6 is rotatably arranged in the rope-running tube 21 through a rotating shaft. The first and second sealing components 1 and 2 are respectively provided with a first tensioning wire and a second tensioning wire on their backs. The first tensioning wire goes around the guide wheel 6 in the rope-running tube 21 and then turns back to connect with the piston plate 10. The second tensioning wire passes through the rope-running tube 21 and connects with the piston plate 10. The first tensioning wire and the second tensioning wire both pass through the rope hole 22 and then pass through the water pipe 5. When a large amount of rainwater enters the drain pipe 3, the weight of the piston plate 10 is increased, the piston plate 10 slides downward, and at the same time drives the tensioning wire 7 to move downward. The tensioning wire 7 pulls the first and second sealing components 1 and 2 to press in the direction close to the construction joint, so that the first and second sealing components 1 and 2 seal the edge of the construction joint to prevent rainwater from entering.

[0026] In order to prevent foreign matter from falling onto the piston plate 10, a filter screen 4 is provided in the upper part of the drain pipe 3. The filter screen 4 can effectively prevent foreign matter from falling onto the piston plate 10, avoid increasing the weight of the piston plate 10, and try to ensure that the sliding of the piston plate 10 is caused by rainwater.

[0027] In this embodiment, if Figure 4 , Figure 5 and Figure 6As shown, the bottom end of the drain pipe 3 is provided with a closed end, and a support spring 9 is provided inside the drain pipe 3, one end of the support spring 9 abuts against the closed end, and the other end supports the piston plate 10, wherein the closed end can be realized by a cover threadedly connected to the drain pipe 3; the function of the support spring 9 is to keep the piston plate 10 in a static equilibrium state, in which the piston plate 10 will not pull the tensioning wire 7 to drive the first sealing assembly 1 and the second sealing assembly 2 to press the construction joint. In this static equilibrium state, the support spring 9 is in a natural extension state or a slightly compressed state, the purpose of which is to ensure that after the rainwater accumulates on the piston plate 10, the weight of the rainwater can compress the support spring 9.

[0028] In order to ensure force balance, the first tension wire and the second tension wire movably pass through the axis of the filter screen 4 and are connected to the axis position of the piston plate 10. Of course, the tension wire 7 also passes through the water pipe 5 to ensure the normal movement of the tension wire 7.

[0029] Under normal circumstances, the gravity of the piston plate 10 and the elastic force of the support spring 9 are in a balanced state; when rainwater is collected inside the drain pipe 3, under the action of the gravity of the rainwater, the piston plate 10 presses the support spring 9 downward, so that the piston plate 10 drives the first sealing component 1 and the second sealing component 2 toward the direction of the construction joint through the first tensioning steel wire and the second tensioning steel wire to seal the edge of the construction joint.

[0030] In this embodiment, a plurality of circles of drainage holes 8 are arranged at intervals along the axial direction of the side wall of the drainage pipe 3. The drainage holes 8 are located above the piston plate 10 in a balanced state. For example, the lowest drainage hole 8 is 1-2 cm higher than the piston plate 10, so that rainwater can be accumulated smoothly and compress the support spring downward. The function of the drainage holes 8 is to facilitate the discharge of excess rainwater so that the efficiency of the subsequent natural evaporation of rainwater in the drainage pipe 3 is greatly improved.

[0031] like Figure 4-Figure 8 As shown, in this embodiment, the first sealing component 1 and the second sealing component 2 are both sealing strips with a V-shaped cross-section, the top angle of the sealing strip is set toward the inside of the construction joint, and is adapted to the V-shaped groove set at the edge of the construction joint to improve the sealing effect, and the opening of the sealing strip is set outward; a connecting spring 11 is provided between the upper outer side surface of the sealing strip of the first sealing component 1 and the outer wall, and the axis of the connecting spring 11 is perpendicular to the upper outer side surface of the sealing strip. The function of the connecting spring 11 is to create a tiny gap between the sealing strip and the outer wall so that air can flow into the V-shaped groove and dry the V-shaped groove when the weather is fine.

[0032] In this embodiment, the first sealing component 1 has the following functions for dynamic sealing: when it rains, it is tightened, and the rainwater collected by the drainage pipe on rainy days is pressed by the piston plate and the tensioning wire to further reduce the risk of rainwater infiltrating into the construction joint through tiny pores. The advantage is that it provides additional sealing protection during extreme rainfall. When it is sunny, it is loosened, and when there is no rain, the first sealing component is loosened to cooperate with the opening spring to facilitate the subsequent rapid drying in the V-shaped groove.

[0033] In this embodiment, rainwater mainly comes from the outside of the exterior wall, and a bell mouth is provided at the top of the drain pipe 3 to collect rainwater. At the same time, in order to ensure the sealing effect, two limit strips 12 are convexly provided on the inner side of the opening of the sealing strip of the first sealing component 1, and the two limit strips 12 enclose a receiving space 13 on the inner side of the opening of the sealing strip. A water-absorbing expansion strip 14 is provided in the receiving space 13. The water-absorbing expansion strip 14 is a water-stop strip that expands when exposed to water, and can also be made of materials such as water-absorbing gel.

[0034] A water inlet slit 19 communicating with the accommodation space 13 is provided on the upper side wall of the sealing strip, and a water outlet slit 20 communicating with the accommodation space 13 is provided on the lower side wall of the sealing strip. The upper end of the water inlet slit 19 is located outside the outer wall, and the lower end of the water outlet slit 20 is located outside the outer wall. In this embodiment, when there is no obvious rain on sunny or cloudy days, the outside air enters the accommodation space 13 through the water inlet slit 19, and is discharged through the water outlet slit after being dried by the water absorption and expansion strip 14. When it rains, rainwater stays along the outer side of the outer wall and enters the accommodation space 13 through the water inlet slit 19. The water absorption and expansion strip 14 absorbs a large amount of rainwater and expands, and the excess rainwater is discharged from the water outlet slit. The water absorption and expansion strip absorbs water and expands, which stretches and deforms the sealing strip, so that the sealing strip is pressed against the side wall of the V-shaped groove, thereby improving the sealing effect.

[0035] The length directions of the water inlet slit 19 and the water outlet slit 20 are arranged along the length direction of the sealing strip; according to actual conditions, a plurality of water inlet slits 19 and water outlet slits 20 can be arranged at intervals.

[0036] In order to facilitate the deformation of the first sealing component 1 and seal the water inlet seam, a receiving groove 15 is provided on the upper side wall of the sealing strip of the first sealing component 1. The receiving groove 15 is located below the water inlet seam 19. A movable block 16 is provided between the receiving groove 15 and the water inlet seam 19. When the upper side wall of the sealing strip of the first sealing component 1 is deformed by external force, the water inlet seam 19 is sealed by the movable block 16, thereby preventing air or rainwater from entering the receiving space 13. The external force includes the pulling force generated by the piston plate 10 sliding down due to rainwater flowing into the drain pipe 3 and the first sealing component 1 is deformed due to the expansion of the water absorption expansion strip 14 after absorbing water.

[0037] In order to facilitate the replacement of the water-absorbing and expanding strip 14 , an opening is provided between the two limiting strips 12 , and the opening is convenient for the water-absorbing and expanding strip 14 to be inserted into or removed from the accommodating space 13 .

[0038] In this embodiment, a connection block 17 is provided in the opening of the sealing strip of the second sealing assembly 2, and the second tensioning wire movably passes through the connection block 17. A locking nut 18 is threadedly connected to the connection block 17. When the locking nut 18 is tightened with the connection block 17, the position of the second tensioning wire and the connection block 17 is fixed. The purpose of this arrangement is to facilitate the adjustment of the tension of the second tensioning wire. The connection block 17 is a truncated cone-shaped external thread and a plurality of slits are provided on the side wall. When the locking nut 18 is tightened with the connection block 17, the connection block 17 is deformed, thereby clamping the second tensioning wire.

[0039] In this embodiment, the sealing strip is a rubber part or a silicone part made of elastic material to facilitate its deformation.

[0040] During normal use, if there is no rain, air can enter the accommodation space 13 through the water inlet slit 19, and then be discharged through the water outlet slit 20 after absorbing water and drying through the water absorption expansion strip 14. If it is humid weather or a small amount of rain, the water absorption expansion strip 14 will expand after absorbing enough water, causing the upper side wall of the first sealing component 1 to deform, and the movable block 16 will close the water inlet slit 19 to effectively prevent air or rain from entering again. When encountering a large amount of rain, rainwater will flow into the drain pipe 3 in large quantities, and the rapid accumulation of rainwater will cause the piston plate 10 to move downward, thereby pulling the first sealing component 1 and the second sealing component 2 to press against the inner wall of the V-shaped groove by tightening the steel wire 7, sealing the edge of the construction joint, preventing rainwater from flowing into the construction joint, and at the same time, the rainwater in the rope running pipe and the construction joint is discharged through the water guide pipe 5 to avoid water accumulation in the construction joint; of course, in the actual construction process, the bottom surface of the construction joint can be sloped to ensure that the water guide pipe 5 is the lowest position of the construction joint as much as possible.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A waterproof structure for construction joints of basement exterior walls, the exterior walls comprising: A concrete first cast wall (101) and a concrete second cast wall (102), characterized in that they comprise: a first sealing component (1) and a second sealing component (2), wherein the first sealing component (1) is arranged on the outside of a construction joint of an exterior wall, and the second sealing component (2) is arranged on the inside of a construction joint of an exterior wall, a drainage pipe (3) is arranged below the first sealing component (1), a piston plate (10) is provided in a movable seal in the drainage pipe (3), a water guide pipe (5) is arranged in the concrete first cast wall (101), the upper end of the water guide pipe (5) is laid flat on the bottom surface of the construction joint, and the lower end of the water guide pipe (5) is arranged in the drainage pipe (3); a rope guide pipe (21) is pre-buried in the exterior wall, and the axis of the rope guide pipe (21) coincides with the plane formed by the construction joint; A guide wheel (6) is provided inside the rope-walking tube (21); a first tensioning wire and a second tensioning wire are provided on the back of the first sealing component (1) and the second sealing component (2), respectively; the first tensioning wire passes around the guide wheel (6) and is connected to the piston plate (10); the second tensioning wire passes through the rope-walking tube (21) and is connected to the piston plate (10).

2. The basement exterior wall construction joint waterproof structure according to claim 1, characterized in that: A filter screen (4) is provided in the upper part of the drainage pipe (3).

3. The waterproof structure for basement exterior wall construction joints as claimed in claim 2, characterized in that: The bottom end of the drain pipe (3) is set as a closed end, and a support spring (9) is arranged in the drain pipe (3), one end of the support spring (9) abuts against the closed end, and the other end supports the piston plate (10); the first tensioning wire and the second tensioning wire movably pass through the axis of the filter screen (4) and are connected to the axis of the piston plate (10), and the gravity of the piston plate (10) and the elastic force of the support spring (9) are in a balanced state; when rainwater is collected in the drain pipe (3), under the action of the gravity of the rainwater, the piston plate (10) presses the support spring (9) downward, so that the piston plate (10) drives the first sealing component (1) and the second sealing component (2) to be pressed in the direction of the construction joint through the first tensioning wire and the second tensioning wire, thereby sealing the edge of the construction joint.

4. The waterproof structure for basement exterior wall construction joints as claimed in claim 3, characterized in that: A plurality of circles of drainage holes (8) are provided on the side wall of the drainage pipe (3) at intervals along its axial direction, and the drainage holes (8) are located above the piston plate (10) in a balanced state.

5. The waterproof structure for basement exterior wall construction joints according to any one of claims 1 to 4, characterized in that: The first sealing component (1) and the second sealing component (2) are both sealing strips with a V-shaped cross-section, the edge of the construction joint is provided with a V-shaped groove, and the top angle of the sealing strip is arranged toward the inside of the construction joint; a connecting spring (11) is provided between the upper outer side surface of the sealing strip of the first sealing component (1) and the outer wall, and the axis of the connecting spring (11) is perpendicular to the upper outer side surface of the sealing strip.

6. The waterproof structure for basement exterior wall construction joints as claimed in claim 5, characterized in that: Two limiting strips (12) are convexly arranged on the inner side of the opening of the sealing strip of the first sealing component (1), and the two limiting strips (12) enclose a receiving space (13) on the inner side of the opening of the sealing strip. A water absorption expansion strip (14) is arranged in the receiving space (13). The upper side wall of the sealing strip is provided with a water inlet slit (19) communicating with the receiving space (13), and the lower side wall of the sealing strip is provided with a water outlet slit (20) communicating with the receiving space (13). The upper end of the water inlet slit (19) is located outside the outer wall, and the lower end of the water outlet slit (20) is located outside the outer wall.

7. The waterproof structure for basement exterior wall construction joints as claimed in claim 6, characterized in that: An accommodating groove (15) is provided on the upper side wall of the sealing strip of the first sealing assembly (1), the accommodating groove (15) is located below the water inlet slit (19), a movable block (16) is provided between the accommodating groove (15) and the water inlet slit (19), and the upper side wall of the sealing strip is deformed by an external force to seal the water inlet slit (19) through the movable block (16).

8. The waterproof structure for basement exterior wall construction joints according to claim 6, characterized in that: An opening is provided between the two limiting strips (12).

9. The waterproof structure for basement exterior wall construction joints as claimed in claim 7, characterized in that: A connecting block (17) is provided in the opening of the sealing strip of the second sealing assembly (2), the second tensioning wire movably passes through the connecting block (17), a locking nut (18) is threadedly connected to the connecting block (17), and when the locking nut (18) and the connecting block (17) are tightened, the position of the second tensioning wire and the connecting block (17) is fixed.

10. The basement exterior wall construction joint waterproof structure according to claim 9, characterized in that: The sealing strip is made of rubber or silicone.

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