Building expansion joint structure

Abstract

A building expansion joint structure comprises mounting grooves formed in the two sides of an expansion joint, a base plate is arranged on the mounting grooves, an elastic plate is arranged on the side, close to the expansion joint, of the base plate, a water stop belt is arranged in the expansion joint, and an abutting plate used for abutting the water stop belt against the side wall of the expansion joint is arranged on the side, away from the base plate, of the elastic plate. And a pressing plate used for pressing and fixing the base plate in the mounting groove is arranged above the base plate, a dislocation groove is formed in the side wall of the mounting groove, a dislocation block corresponding to the dislocation groove is arranged on the lower surface of the base plate, and when the base plate is pressed downwards by the pressing plate, the dislocation block slides into the dislocation groove, and the abutting plate abuts the water stop against the side wall of the expansion joint. The sealing performance of the building expansion joint can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of expansion joint structures, and particularly relates to a building expansion joint structure. Background Art

[0002] In construction projects, the existence of expansion joints also brings problems of waterproof sealing. Especially in rainy or humid environments, if the waterproof treatment of the expansion joints is not properly done, it is extremely easy for water to penetrate, which will then cause damage to the interior of the building.

[0003] Traditional waterproof treatment methods for expansion joints mostly rely on the separate installation and sealing of waterstops, but such methods often have problems such as complex installation and unstable sealing effects. Especially during long-term use, due to the influence of external environmental factors, the waterstop is prone to displacement, resulting in a decline in waterproof performance. Therefore, there is an urgent need to propose a building expansion joint structure with high sealing performance. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a building expansion joint structure. When the first bolt of the utility model is tightened, the pressing plate will press the base plate tightly against the installation groove. At this time, the misalignment block will slide into the interior of the misalignment groove along the inclined wall. During the process of the misalignment block sliding into the misalignment groove, the base plate will move horizontally inside the installation groove, and the elastic plate will deform. The deformation force of the elastic plate can enable the pressing plate to press the waterstop tightly against the side wall of the expansion joint, and the waterstop can be fixed on the side wall of the expansion joint to form an effective waterproof seal.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A building expansion joint structure includes installation grooves opened on both sides of the expansion joint. A base plate is arranged on the installation groove. An elastic plate is arranged on the side of the base plate close to the expansion joint. A waterstop is arranged inside the expansion joint. A pressing plate for pressing the base plate firmly in the installation groove is arranged above the base plate. A misalignment groove is opened on the side wall of the installation groove. A misalignment block corresponding to the misalignment groove is arranged on the lower surface of the base plate. When the pressing plate presses the base plate downward, the misalignment block slides into the interior of the misalignment groove, and the pressing plate presses the waterstop against the side wall of the expansion joint.

[0007] Preferably, an acute angle is formed between the elastic plate and the clamping plate.

[0008] Preferably, a protrusion is arranged on the side of the pressing plate that presses the waterstop.

[0009] Preferably, both sides of the waterstop extend between the installation groove and the base plate respectively.

[0010]

[0011] ​Preferably, a shielding plate is arranged between the two pressing plates for covering the expansion joint () and covering it. The two sides of the shielding plate are respectively slidably connected to the side walls of the two pressing plates, and a locking assembly is arranged in the middle of the shielding plate for locking the shielding plate.

[0012] Preferably, the locking assembly includes a sliding rod. A plurality of toothed rods are fixedly connected to the side wall of the sliding rod. On both sides of each toothed rod and on the side wall of the shielding plate, a clamping rod is rotatably connected. And a toothed ring meshing with the toothed rod is arranged at the rotating end of the clamping rod. The shielding plate is meshingly connected with a second bolt for pressing the sliding rod. When the threaded end of the second bolt presses the sliding rod to slide downward, the toothed rod slides downward to drive the clamping rod to rotate. The clamping rod penetrates through the elastic plate and abuts against the inner wall of the substrate.

[0013] Preferably, the locking assembly further includes a top rod. The top rod is slidably connected to the end of the clamping rod through a spring, and the outer end of the top rod is movably pressed against the side wall of the expansion joint.

[0014] Preferably, a sealing strip for sealing the connection between the pressing plate and the shielding plate is fixedly installed on the side wall of the pressing plate.

[0015] The utility model can achieve the following beneficial effects:

[0016] When the first bolt of the utility model is tightened, the pressing plate will press the substrate tightly against the installation groove. At this time, the misalignment block will slide along the inclined wall into the misalignment groove. During the process of the misalignment block sliding into the misalignment groove, the substrate will move horizontally inside the installation groove, and the elastic plate will deform. The deformation force of the elastic plate can enable the pressing plate to press the water stop against the side wall of the expansion joint, and the water stop can be fixed on the side wall of the expansion joint to form an effective waterproof seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further illustrates the utility model with reference to the drawings and embodiments:

[0018] Figure 1 is the front view of the overall structure of the utility model Figure One ;

[0019] Figure 2 is the front view of the overall structure of the utility model Figure Two ;

[0020] Figure 3 is the three-dimensional view of the overall structure of the utility model;

[0021] Figure 4 is the exploded view of the overall structure of the utility model;

[0022] Figure 5 is the cross-sectional view of the shielding plate, sliding rod, toothed rod and clamping rod of the utility model;

[0023] Figure 6 A cross-sectional view of the substrate, elastic plate, clamping rod, spring and ejector rod of the present utility model.

[0024] In the figure: 1 - expansion joint, 101 - installation groove, 102 - offset groove, 2 - waterstop, 3 - substrate, 301 - elastic plate, 302 - pressing plate, 303 - offset block, 4 - pressing plate, 5 - first bolt, 6 - shielding plate, 7 - locking assembly, 701 - sliding rod, 702 - toothed rod, 703 - clamping rod, 704 - second bolt, 705 - spring, 706 - ejector rod, 8 - sealing strip. Specific embodiments

[0025] The preferred solution is as Figures 1 to 6 shown. A building expansion joint structure includes two installation grooves 101 symmetrically opened on both sides of the expansion joint 1. A substrate 3 is arranged on the two installation grooves 101. An elastic plate 301 is arranged on one side of the substrate 3 close to the expansion joint 1. An acute angle is formed between the elastic plate 301 and the substrate 3. A waterstop 2 is arranged inside the expansion joint 1. A pressing plate 302 for pressing the waterstop 2 against the side wall of the expansion joint 1 is arranged on the side of the elastic plate 301 away from the substrate 3. The substrate 3, the elastic plate 301 and the pressing plate 302 are of an integral structure. Through the combined action of the elastic plate 301 and the pressing plate 302, it is ensured that the waterstop 2 is in close contact with the side wall of the expansion joint 1, effectively preventing water penetration;

[0026] A pressing plate 4 for pressing and fixing the substrate 3 in the installation groove 101 is arranged above the substrate 3. An offset groove 102 is opened on the side wall of the installation groove 101. An offset block 303 corresponding to the offset groove 102 is arranged on the lower surface of the substrate 3. As Figure 4 shown, inclined walls are arranged on both the offset block 303 and the offset groove 102. When the substrate 3 is placed in the installation groove 101, the pressing plate 302 naturally fits on the side wall (the same side) of the expansion joint 1 and initially contacts the waterstop 2. At this time, the offset block 303 and the offset groove 102 intersect. When the pressing plate 4 presses the substrate 3 downward, the offset block 303 slides into the inside of the offset groove 102, and the pressing plate 302 presses the waterstop 2 against the side wall of the expansion joint 1, ensuring a good waterproof effect;

[0027] First, both sides of the waterstop 2 can be fixed (with glue) on the side wall of the expansion joint 1. At this time, a margin is left in the middle of the waterstop 2 to adapt to the expansion and contraction of the expansion joint 1;

[0028] As Figures 1 - 4As shown, through holes for connecting the first bolt 5 in series are provided on the side walls of the substrate 3 and the pressing plate 4. The substrate 3 and the pressing plate 4 are sequentially placed inside the installation groove 101. The threaded end of the first bolt 5 is inserted through the through holes of the substrate 3 and the pressing plate 4 and engaged into the installation groove 101 (the side wall of the building exterior wall). As the first bolt 5 is tightened, the pressing plate 4 presses the substrate 3 against the installation groove 101. At this time, the dislocation block 303 will slide into the dislocation groove 102 along the inclined wall. During the process of the dislocation block 303 sliding into the dislocation groove 102, the substrate 3 will move horizontally inside the installation groove 101, and the elastic plate 301 will deform. The deformation force of the elastic plate 301 can enable the pressing plate 302 to tightly press the waterstop 2 against the side wall of the expansion joint 1, and the waterstop 2 can be fixed on the side wall of the expansion joint 1 to form an effective waterproof seal;

[0029] In addition, in order to enable the substrate 3 to move horizontally on the installation groove 101 and avoid interference of the first bolt 5 with the movement of the substrate 3, the through hole on the substrate 3 is an oval hole.

[0030] Specifically, a protrusion is provided on the side of the pressing plate 302 that presses the waterstop 2, further enhancing the pressing effect and ensuring the sealing between the waterstop 2 and the side wall of the expansion joint.

[0031] Specifically, both sides of the waterstop 2 respectively extend between the installation groove 101 and the substrate 3.

[0032] As Figures 1 - 3 shown, in order to cover the expansion joint 1, specifically, a cover plate 6 for covering and concealing the expansion joint 1 is provided between the two pressing plates 4. Both sides of the cover plate 6 are slidably connected to the side walls of the two pressing plates 4, and a locking assembly 7 for locking the cover plate 6 is provided in the middle of the cover plate 6.

[0033] As Figures 4 - 6 shown, in order to lock the cover plate 6 on the two pressing plates 4, specifically, the locking assembly 7 includes a slide rod 701. A plurality of toothed rods 702 are fixedly connected to the side wall of the slide rod 701. On both sides of each toothed rod 702 and on the side wall of the cover plate 6, a clamping rod 703 is rotatably connected. And a toothed ring meshing with the toothed rod 702 is provided at the rotating end of the clamping rod 703. The cover plate 6 is meshingly connected with a second bolt 704 for pressing the slide rod 701. When the threaded end of the second bolt 704 presses the slide rod 701 to slide downward, the toothed rod 702 slides downward to drive the clamping rod 703 to rotate. The clamping rod 703 penetrates through the elastic plate 301 and abuts against the inner wall of the substrate 3. As Figure 6 shown, a through groove for avoiding the clamping rod 703 is provided on the side wall of the elastic plate 301;

[0034] After the substrate 3 and the pressing plate 4 are installed, when the clamping rod 703 is in the state asFigure 4 , 5 When in the state shown, place the shutter 6 on the two pressing plates 4. At this time, the clamping rod 703 extends into the expansion joint 1. Turn the second bolt 704. The threaded end of the second bolt 704 presses the sliding rod 701. After the toothed rod 702 slides, the clamping rods 703 on both sides thereof rotate towards both sides respectively. When the clamping rod 703 rotates to abut against the inner wall of the base plate 3, the clamping rod 703 and the shutter 6 are in a horizontal state. In this way, the clamping rod 703 in this state can fix the shutter 6, realizing the rapid installation of the shutter 6. Moreover, the two sides of the shutter 6 slide on the pressing plates 4, which can adapt to the change of the expansion joint 1.

[0035] As Figures 5 - 6 shown, after the shutter 6 is installed, in order to prevent the shutter 6 from moving around, specifically, the locking assembly 7 further includes a top rod 706. The top rod 706 is slidably connected to the end of the clamping rod 703 through a spring 705. The outer end of the top rod 706 abuts against the side wall of the expansion joint 1. By the top rod 706 abutting against the side wall of the expansion joint 1, it can ensure that the shutter 6 is in the middle position of the expansion joint 1 and prevent the shutter 6 from moving towards both sides.

[0036] Specifically, a sealing strip 8 for sealing the connection between the pressing plate 4 and the shutter 6 is fixedly installed on the side wall of the pressing plate 4.

[0037] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A building expansion joint structure, comprising mounting grooves (101) provided on both sides of the expansion joint (1), characterized in that: A base plate (3) is arranged on the mounting groove (101); an elastic plate (301) is arranged on a side of the base plate (3) close to the expansion joint (1); a water stop strip (2) is arranged inside the expansion joint (1); and a pressing plate (302) for pressing the water stop strip (2) against a side wall of the expansion joint (1) is arranged on a side of the elastic plate (301) away from the base plate (3); A pressing plate (4) for pressing the substrate (3) into the mounting groove (101) is arranged above the substrate (3), and a dislocation groove (102) is provided on the side wall of the mounting groove (101). A dislocation block (303) corresponding to the dislocation groove (102) is provided on the lower surface of the substrate (3). When the pressing plate (4) presses the substrate (3) downward, the dislocation block (303) slides into the dislocation groove (102), and the pressing plate (302) presses the water stop strip (2) against the side wall of the expansion joint (1).

2. A building expansion joint structure according to claim 1, characterized in that: An acute angle is formed between the elastic plate (301) and the base plate (3).

3. A building expansion joint structure according to claim 1, characterized in that: A protrusion is provided on one side of the pressing plate (302) pressing against the water stop belt (2).

4. A building expansion joint structure according to claim 1, characterized in that: Both sides of the water stop strip (2) extend to between the installation groove (101) and the base plate (3) respectively.

5. The building expansion joint structure according to claim 1, characterized in that: A shielding plate (6) for shielding and covering the expansion joint (1) is provided between the two pressing plates (4); two sides of the shielding plate (6) are respectively slidably connected to the side walls of the two pressing plates (4); and a locking assembly (7) for locking the shielding plate (6) is provided in the middle of the shielding plate (6).

6. A building expansion joint structure according to claim 5, characterized in that: The locking assembly (7) comprises a slide bar (701), a plurality of toothed rods (702) are fixedly connected to the side wall of the slide bar (701), a clamping rod (703) is rotatably connected to the two sides of each toothed rod (702) and located on the side wall of the shielding plate (6), and a gear ring meshing with the toothed rod (702) is provided at the rotating end of the clamping rod (703), and the shielding plate (6) is meshingly connected with a second bolt (704) for pressing the slide bar (701), when the threaded end of the second bolt (704) presses the slide bar (701) to slide downward, the toothed rod (702) slides downward to drive the clamping rod (703) to rotate, and the clamping rod (703) passes through the elastic plate (301) and abuts against the inner wall of the base plate (3).

7. A building expansion joint structure according to claim 6, characterized in that: The locking assembly (7) further comprises a push rod (706), wherein the push rod (706) is slidably connected to the end of the clamping rod (703) via a spring (705), and the outer end of the push rod (706) is movably pressed against the side wall of the expansion joint (1).

8. The building expansion joint structure according to claim 1, characterized in that: A sealing strip (8) for sealing the connection between the pressing plate (4) and the shielding plate (6) is fixedly mounted on the side wall of the pressing plate (4).

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