Construction joint post-cast strip construction leakage-proof device

Abstract

The utility model relates to the field of post-cast strip construction devices, in particular to a construction joint post-cast strip construction leakage-proof device which comprises a leakage-proof plate, the section of the leakage-proof plate is in an isosceles trapezoid shape, arc chamfers are arranged on the edges of the bottoms of the two inclined faces of the leakage-proof plate, the leakage-proof plate is transversely arranged on a post-cast strip and right faces a post-cast strip metal water stop plate, and the leakage-proof plate is connected with the post-cast strip metal water stop plate. Placement holes are symmetrically formed in the bottom of the leakage-proof plate, and longitudinal limiting pieces are mounted in the placement holes; the longitudinal limiting piece comprises rectangular plates symmetrically and fixedly installed on the lower end face of the leakage-proof plate, a guide rod is welded between the two rectangular plates, the outer wall of the guide rod is sleeved with movable columns, a reset spring is installed on the outer wall of the guide rod and located between the two movable columns, and a threaded pipe is installed at the concentric position of the top of each movable column. Through holes are symmetrically formed in the end face of the top of the movable column with the axis of the threaded pipe as the symmetry axis, an adjusting sleeve is connected to the outer side of the threaded pipe through threads, and the anti-leakage device has the advantages of being high in installation stability and good in anti-leakage effect.

Description

Technical Field

[0001] This utility model relates to the field of post-pouring strip construction devices, specifically a post-pouring strip construction leak prevention device for construction joints. Background Technology

[0002] Construction joints and post-cast strips are unavoidable structural nodes during building construction. Construction joints are joints formed during concrete pouring due to construction organization and other reasons; post-cast strips are temporary construction joints set up to address issues such as settlement differences between the main building and the podium of high-rise buildings, concrete shrinkage deformation, and temperature stress. Because these areas have a certain period of exposure after concrete pouring, if effective leak-proof measures are not taken during this period, debris and sewage can enter, not only affecting the normal construction of the post-cast strip but also potentially seriously impacting the durability and waterproofing performance of the building structure. For example, debris entry may lead to poor bonding between the post-cast strip concrete and the concrete on both sides, reducing the overall structural integrity; chemicals in sewage may corrode the reinforcing steel, weakening the structural load-bearing capacity.

[0003] Currently, during the placement of post-cast strips in construction joints, traditional leak-proof measures mainly involve covering them with formwork and timber. However, this traditional method has certain drawbacks. First, it is difficult to achieve a completely tight fit between the formwork, timber, and the post-cast strip concrete. In complex construction environments, factors such as vibration from construction equipment, wind, and rain can easily lead to gaps. Second, the simple fixing methods for the formwork and timber lack stability, making them susceptible to displacement due to human impact or interference from construction machinery on site, thus damaging the leak-proof system. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a construction joint post-pouring strip anti-leakage device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a construction joint post-pouring strip construction leak prevention device, including a leak prevention plate, the cross section of the leak prevention plate is an isosceles trapezoid, and a rounded chamfer is provided at the bottom edge of the two inclined surfaces of the leak prevention plate. The leak prevention plate is placed horizontally on the post-pouring strip and is directly opposite the metal waterstop plate of the post-pouring strip. The bottom of the leak prevention plate is symmetrically provided with placement holes, and a longitudinal limiting member is installed in the placement hole.

[0006] The longitudinal limiting component includes rectangular plates symmetrically fixedly installed on the lower end face of the leak-proof plate. A guide rod is welded between the two rectangular plates. A movable column is sleeved on the outer wall of the guide rod. A return spring is installed on the outer wall of the guide rod between the two movable columns. A threaded tube is installed concentrically on the top of the movable column. A through hole is symmetrically opened on the top end face of the movable column with the axis of the threaded tube as the axis of symmetry. An adjusting sleeve is connected to the outside of the threaded tube by a thread. An adjusting rod is installed at the center of the top of the adjusting sleeve and is inserted into the inner wall of the placement hole. An internal hexagonal groove is opened on the top end face of the adjusting rod. The diameter of the adjusting rod is smaller than the diameter of the placement hole. A rotating ring is installed on the outer wall of the adjusting sleeve near its bottom. A pull rope is installed on the lower end face of the rotating ring.

[0007] A positioning rod is installed at the center of the bottom of the movable column. A movable sleeve is fitted onto the outer wall of the positioning rod. The upper end face of the movable sleeve is fixedly connected to the bottom of the pull rope. A shaft hole is opened at the center of the bottom of the movable sleeve. A shaft is rotatably installed in the shaft hole. The top of the shaft passes through the positioning rod, the movable column, and the adjusting rod in sequence. A cross groove is opened on the top end face of the shaft. A positioning hook is installed at the bottom of the shaft. The upper end face of the positioning hook contacts the lower end face of the movable sleeve but is not connected.

[0008] Specifically, the outer wall of the adjusting rod is equipped with a pressing frustum, the lower end of the leak-proof plate is symmetrically provided with a rectangular groove, a slide rod is installed in the rectangular groove, a slider is installed on the outer wall of the slide rod, a sealing block is connected to the bottom of the slider, an insertion hole is provided inside the rectangular plate, a guide tube is installed on the outer wall of the rectangular plate at the position overlapping with the insertion hole, a pressing rod is inserted in the guide tube, a plate is installed on one end of the pressing rod facing the sealing block, the end face of the plate is connected to an abutment plate through a pressing spring, and the other end of the pressing rod is close to the inclined surface of the pressing frustum.

[0009] Specifically, a sealing silicone pad is embedded in the outer end face of the sealing block, and a compression ball is installed at the end of the compression rod facing the compression truncated cone.

[0010] Specifically, a support tray is fixedly installed on the outer side of the adjusting rod, and a support spring is installed on the outer wall of the adjusting rod and on top of the support tray. A sealing disc is connected to the top of the support spring, and the sealing disc is sleeved on the outer wall of the adjusting rod. A rubber pad is embedded in the top end face of the sealing disc, and the diameter of the sealing disc is larger than the diameter of the placement hole.

[0011] Specifically, the top of the leak-proof plate is symmetrically provided with strip grooves, and a crossbar is installed in the strip grooves.

[0012] Specifically, a sealing piston is installed on the top of the placement hole.

[0013] Specifically, ball bearings are installed at the connection between the movable column and the guide rod.

[0014] The beneficial effects of this utility model are:

[0015] This utility model discloses a construction joint post-pouring strip anti-leakage device. The device includes components such as a longitudinal limiting member. During construction, the integrated unit consisting of the longitudinal limiting member and the anti-leakage plate is placed above the post-pouring strip. When the anti-leakage plate descends to contact the upper surface of the post-pouring strip concrete, two positioning hooks descend vertically simultaneously. When the positioning hooks contact the metal waterstop plate, the bottom inclined surfaces of the two positioning hooks contact the edge of the metal waterstop plate and are subjected to lateral compressive force. Under this compressive force, the movable column moves laterally along the guide rod and compresses the return spring. When the lower surface of the anti-leakage plate is completely in contact with the upper surface of the post-pouring strip concrete, the positioning... The bottom slope of the hook rod is moved to below the metal waterstop plate. At this time, the rotating shaft is adjusted by wrench to make the marking line turn inward. Then, the adjusting sleeve is rotated by wrench to drive the pull rope to rise. The pull rope then pulls the movable sleeve and the positioning hook rod to rise, so that the positioning hook rod abuts against the lower end face of the metal waterstop plate. This state can be seen in the figure. This completes the longitudinal positioning of the leak-proof plate, making the installation of the leak-proof plate more stable. It is not easy for it to shift when construction personnel or construction tools pass by, ensuring the leak-proof effect and preventing damage to the leak-proof system. At the same time, the movable positioning hook rod can meet the use of different post-pouring strips.

[0016] This utility model discloses a construction joint post-pouring strip construction leak-proof device. When the adjusting rod rises, it simultaneously drives the extrusion pedestal to rise. After the extrusion pedestal rises, its inclined surface gradually presses against one end of the extrusion rod. Under the action of the extrusion force, the extrusion rod moves along the inner wall of the guide tube toward the sealing block. The plate moves along with the extrusion rod. After the plate moves, it drives the extrusion spring and the contact plate to press against the sealing block. The sealing block moves toward the inner side of the post-pouring strip under the extrusion force. The slider slides along the slide rod. When the extrusion pedestal rises to its maximum height, the outer wall of the sealing block presses against the inner wall of the post-pouring strip, sealing this position and improving the installation sealing performance of the leak-proof plate, thus improving the overall leak-proof effect. At the same time, since the diameter of the sealing disc is larger than the diameter of the placement hole, when the movable column is displaced, the support spring can push the sealing disc to tightly fasten to the lower end face of the placement hole, sealing the gap between the placement hole and the adjusting rod, further improving the overall sealing performance of the leak-proof plate and simultaneously enhancing its own leak-proof effect. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a cross-sectional view of the overall construction of this utility model;

[0019] Figure 2 This is a partial three-dimensional view of the structure of this utility model;

[0020] Figure 3This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0021] Figure 4 This utility model Figure 1 A magnified view of a portion of region B in the middle;

[0022] In the diagram: 1. Leak-proof plate, 2. Longitudinal limiting component, 11. Placement hole, 12. Rectangular groove, 13. Slide rod, 14. Slider, 15. Sealing block, 16. Strip groove, 17. Crossbar, 21. Rectangular plate, 22. Guide rod, 23. Movable column, 24. Return spring, 25. Threaded tube, 26. Adjusting sleeve, 27. Rotating ring, 28. Positioning rod, 29. Positioning hook rod, 261. Adjusting rod, 262. Extrusion frustum, 263. Support plate, 264. Support spring, 265. Sealing disc, 271. Pull rope, 281. Movable sleeve. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0025] See Figure 1-4 The present invention provides a construction joint post-pouring strip construction leak prevention device, including a leak prevention plate 1. The cross-section of the leak prevention plate 1 is an isosceles trapezoid, and a rounded chamfer is provided at the bottom edge of the two inclined surfaces of the leak prevention plate 1. When construction personnel or construction tools pass over the leak prevention plate 1, the rounded chamfer of the leak prevention plate 1 facilitates the passage of construction personnel or construction tools.

[0026] like Figure 1 As shown, the top of the leak-proof board 1 is symmetrically provided with strip grooves 16, and a crossbar 17 is installed in the strip grooves 16; when placing or removing the leak-proof board 1, only a few construction workers need to hold the crossbar 17 and lift the leak-proof board 1 as a whole.

[0027] The leak-proof plate 1 is placed horizontally on the post-pouring strip and directly opposite the metal waterstop plate of the post-pouring strip. The bottom of the leak-proof plate 1 is symmetrically provided with placement holes 11. A longitudinal limiting member 2 is installed in the placement hole 11. The longitudinal limiting member 2 and the leak-proof plate 1 are an integral part and are assembled in advance before placement and installation.

[0028] The longitudinal limiting component 2 includes rectangular plates 21 symmetrically fixedly installed on the lower end face of the leak-proof plate 1. A guide rod 22 is welded between the two rectangular plates 21. A movable column 23 is sleeved on the outer wall of the guide rod 22. The movable column 23 can slide along the outer wall of the guide rod 22. A ball bearing is installed at the connection between the movable column 23 and the guide rod 22 to enhance the smoothness of the movable column 23 sliding along the outer wall of the guide rod 22.

[0029] A return spring 24 is installed on the outer wall of the guide rod 22 and between the two movable columns 23. In the initial state, the elastic force of the return spring 24 pushes the movable columns 23 to move to both ends of the guide rod 22.

[0030] A threaded tube 25 is installed concentrically at the top of the movable column 23. A through hole 231 is symmetrically opened on the top end face of the movable column 23 with the axis of the threaded tube 25 as the axis of symmetry. An adjusting sleeve 26 is threadedly connected to the outside of the threaded tube 25. An adjusting rod 261 is installed at the center of the top of the adjusting sleeve 26, and the adjusting rod 261 is inserted into the inner wall of the placement hole 11. An internal hexagonal groove is opened on the top end face of the adjusting rod 261. The diameter of the adjusting rod 261 is smaller than the diameter of the placement hole 11. A rotating ring 27 is installed on the outer side wall near the bottom of the cylinder 26. A pull rope 271 is installed on the lower end face of the rotating ring 27. Rotating the adjusting sleeve 26 can move up and down along the threaded tube 25. The movement of the adjusting sleeve 26 drives the rotating ring 27 to move synchronously. The pull rope 271 can also move up and down with the rotating ring 27. The through hole 231 locks the circumferential position of the pull rope 271 so that the rotating ring 27 installed on its outer side will not rotate with it when the adjusting sleeve 26 rotates.

[0031] A positioning rod 28 is installed at the center of the bottom of the movable column 23. A movable sleeve 281 is sleeved on the outer wall of the positioning rod 28. The upper end face of the movable sleeve 281 is fixedly connected to the bottom of the pull rope 271. A shaft hole is opened at the center of the bottom of the movable sleeve 281. A shaft 20 is rotatably installed in the shaft hole. The top of the shaft 20 passes through the positioning rod 28, the movable column 23, and the adjusting rod 261 in sequence (the positioning rod 28, the movable column 23, and the adjusting rod 261 can also be understood as the adjusting rod 261). The rod 261 has an internal mounting hole for placing the shaft 20, but the shaft 20 is not exposed relative to the adjusting rod 261. A cross groove is formed on the top end face of the shaft 20, and a positioning hook 29 is installed at the bottom of the shaft 20. The upper end face of the positioning hook 29 contacts but is not connected to the lower end face of the movable sleeve 281. A marking line is printed on the top of the shaft 20, and the marking line matches the position of the inclined surface at the bottom of the positioning hook 29. In actual operation, the longitudinal limiting member 2 and the anti-… The integrated component consisting of the leak-proof plate 1 is placed above the post-pouring strip. When the leak-proof plate 1 descends to contact the upper surface of the post-pouring strip concrete, the two positioning hook rods 29 descend vertically simultaneously. After the positioning hook rods 29 contact the metal waterstop plate, the bottom inclined surfaces of the two positioning hook rods 29 contact the edge of the metal waterstop plate and are subjected to lateral compressive force. Under the action of this compressive force, the movable column 23 moves laterally along the guide rod 22 and compresses the return spring 24. When the lower surface of the leak-proof plate 1 is completely in contact with the upper surface of the post-pouring strip concrete, the bottom inclined surfaces of the positioning hook rods 29 move to below the metal waterstop plate. At this time, the rotating shaft 20 is adjusted by wrench so that the marking line turns inward (i.e., the inclined surfaces of the positioning hook rods 29 rotate to directly below the metal waterstop plate). Then, the adjusting sleeve 26 is rotated by wrench to drive the pull rope 271 to rise. The pull rope 271 then pulls the movable sleeve 281 and the positioning hook rods 29 to rise, so that the positioning hook rods 29 abut against the lower surface of the metal waterstop plate. This state can be referred to Figure 1 As shown, the longitudinal positioning of the leak-proof plate 1 is completed, making the installation of the leak-proof plate 1 more stable. It is not easy for it to shift when construction personnel or construction tools pass by, thus ensuring the leak-proof effect. At the same time, the movable positioning hook rod 29 can meet the use of different post-pouring strips (i.e., the installation height of the metal waterstop plate in the post-pouring strip is different).

[0032] In another embodiment, see Figures 1-4The outer wall of the adjusting rod 261 is equipped with a pressing frustum 262. A rectangular groove 12 is symmetrically opened on the lower end face of the leak-proof plate 1. A sliding rod 13 is installed in the rectangular groove 12. A slider 14 is installed on the outer wall of the slider 13. A sealing block 15 is connected to the bottom of the slider 14. An insertion hole is opened inside the rectangular plate 21. A guide tube 211 is installed on the outer wall of the rectangular plate 21 at the position overlapping with the insertion hole. A pressing rod 212 is inserted into the guide tube 211. A flat plate 213 is installed on one end of the pressing rod 212 facing the sealing block 15. The end face of the flat plate 213 is connected to an abutment plate 215 through a pressing spring 214. The other end of the pressing rod 212 is close to the inclined surface of the pressing frustum 262. In specific operation, when the position of the adjusting rod 261 is... After rising, the extrusion truncated cone 262 rises synchronously. After the extrusion truncated cone 262 rises, its inclined surface (i.e., the outer ring) gradually presses one end of the extrusion rod 212. Under the action of the extrusion force, the extrusion rod 212 moves along the inner wall of the guide tube 211 toward the sealing block 15. The plate 213 moves together with the extrusion rod 212. After the plate 213 moves, it drives the extrusion spring 214 and the contact plate 215 to press the sealing block 15. The sealing block 15 moves toward the inner side of the post-cast strip under the extrusion force. The slider 14 slides along the slide rod 13. When the extrusion truncated cone 262 rises to the maximum height, the outer wall of the sealing block 15 is pressed against the inner wall of the post-cast strip to seal the position, which improves the installation sealing performance of the leak-proof plate 1 and improves the overall leak-proof effect.

[0033] Meanwhile, a sealing silicone pad 151 is embedded in the outer end face of the sealing block 15. In this state, the sealing silicone pad 151 directly contacts the inner wall of the post-cast strip. The sealing silicone pad 151 further increases the sealing performance at the connection between the two. An extrusion ball 216 is installed at one end of the extrusion rod 212 facing the extrusion frustum 262. The extrusion ball 216 reduces the wear between the extrusion rod 212 and the extrusion frustum 262.

[0034] Furthermore, refer to Figures 1-4 As shown, a support tray 263 is fixedly installed on the outer side of the adjusting rod 261. A support spring 264 is installed on the outer wall of the adjusting rod 261 and on top of the support tray 263. A sealing disc 265 is connected to the top of the support spring 264, and the sealing disc 265 is sleeved on the outer wall of the adjusting rod 261. The two are tightly sleeved, and an O-ring can be installed at the connection between the sealing disc 265 and the adjusting rod 261. A rubber pad is embedded in the top end face of the sealing disc 265. Since the diameter of the sealing disc 265 is larger than the diameter of the placement hole 11, when the movable column 23 is displaced, the support spring 264 can push the sealing disc 265 to tightly fasten to the lower end face of the placement hole 11, sealing the gap between the placement hole 11 and the adjusting rod 261, thereby further improving the overall sealing performance of the leak-proof plate 1 and simultaneously improving its leak-proof effect.

[0035] When the adjusting rod 261 moves vertically upward, it will also cause the support tray 263 to compress the support spring 264. The rebound force of the compressed support spring 264 will act on the lower end face of the sealing disc 265, making the connection between the sealing disc 265 and the placement hole 11 tighter.

[0036] Meanwhile, a sealing piston 18 is installed on the top of the placement hole 11 to seal the top of the placement hole 11.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction joint post-pouring strip construction leakage-proof device, comprising a leakage-proof plate (1), characterized in that: The cross section of the leakage-proof plate (1) is isosceles trapezoidal, and a circular arc chamfer is arranged at the bottom edge of the two inclined surfaces of the leakage-proof plate (1); the leakage-proof plate (1) is horizontally arranged on the post-cast strip and faces the metal water stop plate of the post-cast strip; symmetrically arranged holes (11) are arranged at the bottom of the leakage-proof plate (1); and longitudinal limiting members (2) are arranged in the holes (11). The longitudinal limiting member (2) comprises rectangular plates (21) which are symmetrically and fixedly arranged at the lower end surface of the leakage-proof plate (1); a guide rod (22) is welded between the two rectangular plates (21); movable columns (23) are sleeved on the outer wall of the guide rod (22); return springs (24) are arranged on the outer wall of the guide rod (22) and between the two movable columns (23); threaded pipes (25) are arranged at the top of the movable columns (23) and concentrically; through holes (231) are symmetrically arranged on the top end surface of the movable columns (23) and concentric to the threaded pipes (25); an adjusting sleeve (26) is connected to the outer side of the threaded pipe (25) through threads; an adjusting rod (261) is arranged at the top of the adjusting sleeve (26) and centrally; the adjusting rod (261) is inserted into the inner wall of the hole (11); an internal hexagonal groove is arranged on the top end surface of the adjusting rod (261); the diameter of the adjusting rod (261) is smaller than the diameter of the hole (11); a rotating ring sleeve (27) is arranged on the outer side wall of the adjusting sleeve (26) close to the bottom; and a pull rope (271) is arranged on the lower end surface of the rotating ring sleeve (27). A positioning rod (28) is arranged at the bottom of the movable column (23) and centrally; a movable sleeve (281) is sleeved on the outer side wall of the positioning rod (28); the upper end surface of the movable sleeve (281) is fixedly connected with the bottom of the pull rope (271); an axle hole is arranged at the bottom of the movable sleeve (281) and centrally; an axle rod (20) is rotatably arranged in the axle hole; the top of the axle rod (20) penetrates the positioning rod (28), the movable column (23) and the adjusting rod (261) in sequence; a cross groove is arranged on the top end surface of the axle rod (20); and a positioning hook rod (29) is arranged on the bottom of the axle rod (20) and the upper end surface of the positioning hook rod (29) is in contact with but not connected with the lower end surface of the movable sleeve (281).

2. The construction joint post-cast strip construction leakage-proof device according to claim 1, characterized in that: The outer wall of the adjusting rod (261) is provided with an extrusion circular table (262); the lower end surface of the leakage-proof plate (1) is symmetrically provided with a rectangular groove (12); a sliding rod (13) is arranged in the rectangular groove (12); a sliding block (14) is arranged on the outer wall of the sliding rod (13); a sealing block (15) is connected to the bottom of the sliding block (14); a plug hole is arranged in the inner part of the rectangular plate (21); a guide pipe (211) is arranged on the outer side wall of the rectangular plate (21) and overlaps with the plug hole; an extrusion rod (212) is inserted into the guide pipe (211); a flat plate (213) is arranged on one end of the extrusion rod (212) and faces the sealing block (15); a contact plate (215) is connected to the end surface of the flat plate (213) through an extrusion spring (214); the other end of the extrusion rod (212) is close to the inclined surface of the extrusion circular table (262).

3. The construction joint post-cast strip construction leakage-proof device according to claim 2, characterized in that: The outer end surface of the sealing block (15) is embedded with a sealing silica gel pad (151), and one end of the extrusion rod (212) is provided with an extrusion ball (216) at the end position.

4. The construction joint post-cast strip construction leakage-proof device according to claim 1, characterized in that: The outer side of the adjusting rod (261) is fixedly provided with a supporting tray (263), the outer wall of the adjusting rod (261) and the top of the supporting tray (263) are provided with a supporting spring (264), the top of the supporting spring (264) is connected with a sealing disc (265), the sealing disc (265) is sleeved on the outer wall of the adjusting rod (261), the top end surface of the sealing disc (265) is embedded with a rubber pad, and the diameter of the sealing disc (265) is greater than the hole diameter of the placing hole (11).

5. The construction joint post-cast strip construction leak-proof device according to claim 1, characterized in that: The top of the anti-leakage plate (1) is symmetrically provided with a strip-shaped groove (16), and a horizontal rod (17) is arranged in the strip-shaped groove (16).

6. The construction joint post-cast strip construction leak-proof device according to claim 1, characterized in that: The top of the placing hole (11) is provided with a sealing piston (18).

7. The construction joint post-cast strip construction leak-proof device according to claim 1, characterized in that: The connecting position of the movable column (23) and the guide rod (22) is provided with a ball bearing.

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