Expandable pressure-reducing water-stop belt

Abstract

The utility model discloses an expandable decompression waterstop, which relates to the field of waterstops and comprises a central column, first reinforcing ribs are fixedly connected to two sides of an outer ring of the central column, third connecting pads are fixedly connected to one ends, far away from the central column, of the first reinforcing ribs on two sides, a plurality of springs are fixedly mounted in the third connecting pads, and the springs are fixedly connected with the central column. A second reinforcing rib is fixedly connected to the end, away from the first reinforcing rib, of the third connecting pad, a clamping plate is fixedly installed at the end, away from the third connecting pad, of the second reinforcing rib, a first cover plate is installed in the upper end of the clamping plate in a clamped mode, and a second cover plate is installed in the bottom end of the clamping plate in a clamped mode. By the adoption of the structure, the spring arranged in the third connecting pad can effectively prevent the waterstop from being deformed and damaged, the pressure of concrete on the upper end face and the lower end face of the waterproof area can be well reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of waterstops, and particularly relates to a waterstop with expandable and pressure-reducing functions. Background Art

[0002] In tunnel and dam construction projects, in order to avoid water leakage at the concrete joints, it is usually necessary to install waterstops at the joints. The two sides of the waterstop need to be cast or embedded in the adjacent concrete. During construction, the waterstop needs to be fixed along the tunnel cross-section shape and the pre-laid steel mesh first, and finally poured with concrete. Currently, waterstops that expand when exposed to water have been invented.

[0003] Some expandable and pressure-reducing waterstops have been specifically developed in the prior art. For example, the Chinese patent with the publication number "CN208415190U" discloses "a waterstop with expandable and pressure-reducing effects". The waterstop with expandable and pressure-reducing effects will gradually expand when exposed to water, and finally slowly block the existing capillary pores, making the contact with the concrete interface more intimate. A partition groove is provided in the middle of the waterproof area, and several spring pieces are evenly arranged in the partition groove, which can effectively reduce the pressure of the concrete on the upper and lower ends of the waterproof area and extend the service life. A mesh grid is provided to increase the contact area between the waterproof area and the concrete and increase the adhesion force, which can effectively prevent the occurrence of the phenomena of the outer layer of concrete falling off and cracking. A side groove is provided to facilitate the fixation with steel bars during construction by workers. A marking block is provided to facilitate the workers to calculate the length during construction and improve the construction efficiency.

[0004] Although the above problems can be solved by the expandable and pressure-reducing effects, the waterstop will gradually expand when exposed to water, and finally slowly block the existing capillary pores, making the contact with the concrete interface more intimate. A partition groove is provided in the middle of the waterproof area, and several spring pieces are evenly arranged in the partition groove, which can effectively reduce the pressure of the concrete on the upper and lower ends of the waterproof area. However, when the user needs to connect two waterstops, it increases the difficulty of connection for the user and cannot effectively and conveniently connect the two waterstops together, which will increase the complexity for the user to connect the two waterstops together. Summary of the Utility Model

[0005] Aiming at the problems mentioned in the background art, the purpose of the present utility model is to provide a waterstop with expandable and pressure-reducing functions to solve the problems of the waterstop.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] An expandable and pressure-reducing water stop belt, including a central column. On both sides of the outer ring of the central column, first reinforcing ribs are fixedly connected. At one end of the two first reinforcing ribs away from the central column, a third connecting pad is fixedly connected. Inside the third connecting pad, a plurality of springs are fixedly installed. At one end of the third connecting pad away from the first reinforcing rib, a second reinforcing rib is fixedly connected. At one end of the second reinforcing rib away from the third connecting pad, a clamping plate is fixedly installed. Inside the upper end of the clamping plate, a first cover plate is clamped and installed. Inside the bottom end of the clamping plate, a second cover plate is clamped and installed.

[0008] As a preferred technical solution, on both sides of the outer ring of the central column, first connecting pads are fixedly connected. At one end of the first connecting pad away from the central column, a first reinforcing rib is fixedly installed.

[0009] As a preferred technical solution, a rectangular groove is opened inside the third connecting pad, and the spring is fixedly installed inside the rectangular groove opened inside the third connecting pad.

[0010] As a preferred technical solution, mesh partitions are fixedly installed at both the upper end and the lower end of the third connecting pad, and both sides of the mesh partition are fixedly installed on one side of the first reinforcing rib and the second reinforcing rib.

[0011] As a preferred technical solution, at one end of the second reinforcing rib away from the third connecting pad, a second connecting pad is fixedly connected. At one end of the second connecting pad away from the second reinforcing rib, a clamping plate is integrally formed.

[0012] As a preferred technical solution, at the central position inside the first cover plate, an installation block is integrally formed. Inside the installation block, a limiting groove is opened, and a plurality of grooves are opened at the upper end of the first cover plate.

[0013] As a preferred technical solution, at the central position inside the second cover plate, a fixing block is fixedly installed. At the upper end of the fixing block, a protruding connecting block is fixedly installed, and a plurality of grooves are opened at the bottom of the second cover plate.

[0014] As a preferred technical solution, installation grooves are provided inside both the first cover plate and the second cover plate, and a clamping plate is slidably installed inside the installation groove.

[0015] As a preferred technical solution, a connecting groove is provided inside the clamping plate, and both the first cover plate and the second cover plate are slidably installed inside the connecting groove, and the protruding connecting block is clamped and installed inside the limiting groove.

[0016] In summary, the present utility model mainly has the following beneficial effects:

[0017] First, when the user needs to fix two waterstops together, the first cover plate can be snapped into the upper inner part of the engaging plates on both sides of the waterstop by sliding, and then the second cover plate can be snap-connected to the bottom of the engaging plates by sliding. When the second cover plate is snapped into the bottom inside of the engaging plates by sliding, the protruding connecting block fixedly installed inside the second cover plate will also be slidably connected to the installation groove provided inside the first cover plate in a sliding manner. In this way, the two waterstops can be effectively fixed together, and the fixing effect can be improved. Moreover, the portability effect is better improved. The user can fix the two waterstops together in a short time, which can effectively improve the installation speed. Since the first cover plate and the second cover plate fix the two waterstops in a snap-fit manner, when the waterstops are buried in the soil, the two waterstops can be effectively prevented from falling off. Mesh partitions are provided at both the upper and lower ends of the third connecting pad. When pouring cement, the mesh partitions can effectively play a fixing role to prevent the cement from falling off and cracking, increasing the adhesion. The spring provided inside the third connecting pad can effectively prevent the waterstop from deforming and being damaged, and can also well reduce the pressure of the concrete on the upper and lower end faces of the waterproof area, extending the service life;

[0018] Second, grooves are provided at both the upper and lower ends of the first cover plate and the second cover plate. The user can snap the first cover plate and the second cover plate into the engaging plates by sliding through engaging the grooves, which plays a supporting role and can also increase the adhesion with the cement to prevent the situation of falling off. Under the action of the first reinforcing rib and the second reinforcing rib, the flatness of the third connecting pad can be improved, effectively preventing the third connecting pad from bending. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is the present utility model Figure 1 A partial enlarged structural diagram;

[0021] Figure 3 is a schematic structural diagram of the waterstop body of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the first cover plate and the second cover plate of the present utility model;

[0023] Figure 5 is the present utility model Figure 4 B partial enlarged structural diagram.

[0024] Reference numerals: 1, central column; 2, first reinforcing rib; 3, second reinforcing rib; 4, engaging plate; 5, first connecting pad; 6, mesh partition; 7, first cover plate; 8, groove; 9, third connecting pad; 10, second connecting pad; 11, spring; 12, rectangular groove; 13, connecting groove; 14, mounting groove; 15, limiting groove; 16, fixing block; 17, second cover plate; 18, protruding connecting block; 19, mounting block. Detailed implementation

[0025] Embodiment

[0026] Reference Figures 1 to 2 , a water stop belt with expandable pressure relief in this embodiment includes a central column 1. Both sides of the outer circle of the central column 1 are fixedly connected with first reinforcing ribs 2. One end of both sides of the first reinforcing ribs 2 away from the central column 1 is fixedly connected with a third connecting pad 9. A plurality of springs 11 are fixedly installed inside the third connecting pad 9. One end of the third connecting pad 9 away from the first reinforcing rib 2 is fixedly connected with a second reinforcing rib 3. One end of the second reinforcing rib 3 away from the third connecting pad 9 is fixedly installed with an engaging plate 4. The first cover plate 7 is snap-fitted inside the upper end of the engaging plate 4, and the second cover plate 17 is snap-fitted inside the bottom end of the engaging plate 4.

[0027] Reference Figures 3 to 4 , both sides of the outer circle of the central column 1 are fixedly connected with first connecting pads 5. One end of the first connecting pad 5 away from the central column 1 is fixedly installed with a first reinforcing rib 2. A rectangular groove 12 is opened inside the third connecting pad 9. The spring 11 is fixedly installed inside the rectangular groove 12 opened inside the third connecting pad 9. The spring 11 inside the rectangular groove 12 can effectively reduce the pressure of the concrete on the upper and lower end faces of the waterproof area. One end of the second reinforcing rib 3 away from the third connecting pad 9 is fixedly connected with a second connecting pad 10. One end of the second connecting pad 10 away from the second reinforcing rib 3 is integrally formed with an engaging plate 4. The engaging plate 4 can be snap-fitted with the first cover plate 7 and the second cover plate 17 to achieve the effect of connecting two water stop belts.

[0028] Reference Figures 4 to 5, an installation block 19 is integrally formed at the center inside the first cover plate 7. A limiting groove 15 is provided inside the installation block 19. A plurality of grooves 8 are provided at the upper end of the first cover plate 7. A fixing block 16 is fixedly installed at the center inside the second cover plate 17. A protruding connecting block 18 is fixedly installed at the upper end of the fixing block 16. A plurality of grooves 8 are provided at the bottom of the second cover plate 17. The user can engage the grooves 8 to snap the first cover plate 7 and the second cover plate 17 into the inside of the clamping plate 4 by sliding, achieving a supporting effect. Since the protruding connecting block 18 fixedly installed inside the second cover plate 17 will also be slidably connected to the inside of the installation groove 14 provided inside the first cover plate 7 in a sliding manner, the two waterstops can be effectively fixed together, and moreover, the fixing effect can be improved. Better still, the portability effect is improved.

[0029] Reference Figure 5 , installation grooves 14 are provided inside both the first cover plate 7 and the second cover plate 17. A clamping plate 4 is slidably installed inside the installation grooves 14. A connecting groove 13 is provided inside the clamping plate 4. Both the first cover plate 7 and the second cover plate 17 are slidably installed inside the connecting groove 13. The protruding connecting block 18 is snap-fitted inside the limiting groove 15, so that the two waterstops can be connected together.

[0030] Principle of use and advantages: When in use, the first cover plate 7 can be first snapped into the upper inner part of the clamping plates 4 on both sides of the water stop belt by sliding, and then the second cover plate 17 can be snapped and connected to the bottom of the clamping plate 4 by sliding. When the second cover plate 17 is snapped into the bottom inside of the clamping plate 4 by sliding, the protruding connecting block 18 fixedly installed inside the second cover plate 17 will also be slidably connected to the inside of the installation groove 14 provided inside the first cover plate 7 in a sliding manner. In this way, the two water stop belts can be effectively fixed together, effectively fixing the two water stop belts, and can also improve the installation speed of the user and enhance the portable effect. Mesh partitions 6 are provided at both the upper and lower ends of the third connecting pad 9. When pouring cement, the mesh partitions 6 can effectively play a fixing role to prevent the cement from falling off and cracking and increase the adhesion. The cement can effectively fix the water stop belt to prevent the water stop belt from detaching from the cement. The spring 11 provided inside the third connecting pad 9 can effectively prevent the water stop belt from deforming and being damaged, and can also well reduce the pressure of the concrete on the upper and lower end faces of the waterproof area, increasing the service life of the water stop belt. Grooves 8 are provided at both the upper and lower ends of the first cover plate 7 and the second cover plate 17. The user can snap the first cover plate 7 and the second cover plate 17 into the inside of the clamping plate 4 by sliding through engaging the grooves 8, playing a supporting role and also increasing the adhesion with the cement to prevent detachment. Under the action of the first reinforcing rib 2 and the second reinforcing rib 3, the flatness of the third connecting pad 9 can be improved, effectively preventing the third connecting pad 9 from bending. Installation grooves 14 are provided inside the first cover plate 7 and the second cover plate 17. The clamping plate 4 is slidably installed inside the installation groove 14. A connecting groove 13 is provided inside the clamping plate 4. The first cover plate 7 and the second cover plate 17 are both slidably installed inside the connecting groove 13. The protruding connecting block 18 is snap-fitted inside the limiting groove 15. In this way, the two water stop belts can be connected together.

Claims

1. An expandable and decompressive waterstop, comprising a central column (1), characterized in that: On both sides of the outer circle of the central column (1), first reinforcing ribs (2) are fixedly connected. At the ends of the two first reinforcing ribs (2) far from the central column (1), a third connecting pad (9) is fixedly connected. Inside the third connecting pad (9), a plurality of springs (11) are fixedly installed. At the end of the third connecting pad (9) far from the first reinforcing rib (2), a second reinforcing rib (3) is fixedly connected. At the end of the second reinforcing rib (3) far from the third connecting pad (9), a clamping plate (4) is fixedly installed. Inside the upper end of the clamping plate (4), a first cover plate (7) is clamped and installed. Inside the bottom end of the clamping plate (4), a second cover plate (17) is clamped and installed.

2. The water stop belt capable of expanding and decompressing according to claim 1, characterized in that: On both sides of the outer circle of the central column (1), first connecting pads (5) are fixedly connected. At the end of the first connecting pad (5) far from the central column (1), a first reinforcing rib (2) is fixedly installed.

3. The water stop belt capable of expansion and decompression according to claim 1, characterized in that: Inside the third connecting pad (9), a rectangular groove (12) is formed. The spring (11) is fixedly installed inside the rectangular groove (12) formed inside the third connecting pad (9).

4. The water stop strip capable of expanding and decompressing according to claim 1, characterized in that: On the upper and lower ends of the third connecting pad (9), mesh partitions (6) are fixedly installed. On both sides of the mesh partition (6), they are fixedly installed on one side of the first reinforcing rib (2) and the second reinforcing rib (3).

5. The water stop strip capable of expanding and decompressing according to claim 1, characterized in that: At the end of the second reinforcing rib (3) far from the third connecting pad (9), a second connecting pad (10) is fixedly connected. At the end of the second connecting pad (10) far from the second reinforcing rib (3), a clamping plate (4) is integrally formed.

6. The water stop belt capable of expanding and decompressing according to claim 1, characterized in that: At the central position inside the first cover plate (7), a mounting block (19) is integrally formed. Inside the mounting block (19), a limiting groove (15) is formed. On the upper end of the first cover plate (7), a plurality of grooves (8) are formed.

7. The water stop belt capable of expansion and decompression according to claim 1, characterized in that: At the central position inside the second cover plate (17), a fixing block (16) is fixedly installed. On the upper end of the fixing block (16), a protruding connecting block (18) is fixedly installed. On the bottom of the second cover plate (17), a plurality of grooves (8) are formed.

8. The water stop belt capable of expanding and decompressing according to claim 1, characterized in that: Inside both the first cover plate (7) and the second cover plate (17), mounting grooves (14) are provided. Inside the mounting grooves (14), a clamping plate (4) is slidably installed.

9. The water stop belt capable of expanding and decompressing according to claim 7, characterized in that: Inside the clamping plate (4), a connecting groove (13) is provided. Both the first cover plate (7) and the second cover plate (17) are slidably installed inside the connecting groove (13). The protruding connecting block (18) is clamped and installed inside the limiting groove (15).

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