Assembly type steel plate box joint rapid water stopping device

Through the combination of airbag pressurized expansion and water-expanded water stop strips, the problem of insufficient sealing of the seams of the prefabricated steel plate box is solved, and rapid water stop and efficient sealing is achieved, which is suitable for steel plate boxes of various specifications and shapes.

CN223241450UActive Publication Date: 2025-08-19CCCC TUNNEL ENG CO LTD +2
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Patent Information

Application Number
CN202422388133.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-08-19
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

During the assembly process of prefabricated steel plate boxes, the sealing of the joints is insufficient, resulting in leakage easily when the water pressure is high, affecting construction safety and progress.

Method used

The airbag pressure expansion method is adopted to make the rubber sealing gasket tightly fit the inner wall of the concave tenon joint through the pressure inside the airbag, and the joint gap is filled with the water expansion stop strip to form a solid sealing layer.

Benefits of technology

It improves the sealing performance at the joints and is suitable for steel plate boxes of various specifications and shapes, ensuring rapid water stopping effect, and enhancing the adaptability and water stopping effect of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly type steel plate box joint quick water stop device, which relates to the technical field of end well construction and comprises a steel plate box, the steel plate box is formed by splicing a plurality of steel boxes, limiting steel blocks are arranged on the inner wall of a tenon joint, air bags are arranged on the outer sides of the limiting steel blocks on the two sides in a press fit mode, and the air bags are arranged on the inner wall of the tenon joint. A water swelling strip is arranged at the groove bottom of the concave tenon connector and connected to the inner side of the limiting steel block. The air bag is pressurized through external equipment, along with the increase of the pressure in the air bag, the air bag is rapidly expanded and generates strong extrusion force, the expanded air bag firstly tightly presses the rubber sealing gasket to enable the rubber sealing gasket to be better attached to the inner wall of the tenon joint, any tiny gap between the rubber sealing gasket and the joint is eliminated, and therefore the sealing performance is improved, and the service life of the tenon joint is prolonged. And the expansion of the air bag can further compact the sealant, and the sealant can more tightly fill tiny gaps in the joint after being pressed, so that a firmer sealing layer is formed, and rapid water stop at the joint is realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of end well construction, in particular to an assembled steel plate box joint rapid water-stopping device. Background Art

[0002] With the modular assembly of prefabricated steel box, the end well can quickly form a closed recharge space, which not only meets the functional needs, but also enables rapid installation and disassembly, and reuse, greatly improving construction efficiency.

[0003] During the assembly of prefabricated steel box panels, ensuring the sealing of joints becomes a pressing issue. Traditional joint sealing methods often use bolts fastened with rubber gaskets. While this method can provide a certain degree of watertightness, high water pressure or improper joint treatment can easily lead to leakage, impacting construction safety and progress. Therefore, this utility model proposes a rapid watertight device for prefabricated steel box joints. Utility Model Content

[0004] The purpose of this utility model is to provide a rapid water-stopping device for prefabricated steel box joints, addressing the urgent issue of seam sealing during the assembly process of prefabricated steel box construction, as discussed in the background art. Conventional seam sealing methods often use bolts fastened with rubber gaskets, which, while effective at stopping water to a certain extent, can easily lead to leakage when water pressure is high or the joints are improperly treated, impacting construction safety and progress.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] An assembled steel plate box joint quick water-stopping device includes a steel plate box, which is composed of several steel boxes spliced together. The opposite end faces of the steel plate box are respectively formed with a convex tenon joint and a concave tenon joint for matching with the convex tenon joints of adjacent steel plate boxes. The inner wall of the concave tenon joint is provided with a limiting steel block, and a groove for embedding a rubber sealing gasket is formed between the two limiting steel blocks and the inner wall of the concave tenon joint. Air bags are pressed on the outer sides of the limiting steel blocks on both sides, and a water-stop strip that expands when exposed to water is provided at the bottom of the groove of the concave tenon joint and connected to the inner side of the limiting steel block.

[0007] Optionally, a water-swelling water-stop layer is bonded to the side of the rubber sealing gasket away from the inner wall of the mortise and tenon joint.

[0008] Optionally, the airbag does not fit into the corner of the mortise and tenon joint.

[0009] Optionally, the airbag is expanded by pressurization to cause the spring steel plate to abut against one side of the mortise and tenon joint of another steel plate box.

[0010] Optionally, the front and rear sides of the top of the steel box are provided with lifting ears, and the left and right sides of the front surface of the steel box are correspondingly provided with connecting seats, and the connecting seat on one side is fixedly connected to the connecting seat of the other steel box by bolts.

[0011] Optionally, the plurality of steel boxes consist of five standard widths, four adjustable widths, one corner width, two ground-wall node widths and one 900mm width.

[0012] Optionally, the cross-section of the mortise and tenon joint is trapezoidal, and a joint quick water-stopping device is provided in each of the mortise and tenon joints.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model uses a built-in airbag to pressurize the airbag through an external device. As the pressure in the airbag increases, its volume expands rapidly and generates a strong extrusion force. The expanded airbag first tightly presses the rubber sealing gasket, so that the rubber sealing gasket is deformed and compressed, making it fit more closely to the inner wall of the mortise and tenon joint, eliminating any tiny gap between the rubber sealing gasket and the joint, thereby improving the sealing performance. The expansion of the airbag will also further compact the sealant. After being under pressure, the sealant will more tightly fill the tiny gap in the joint, forming a more solid sealing layer, and realizing rapid water stopping at the joint.

[0015] 2. This device is suitable for prefabricated steel boxes of various specifications and shapes, whether standard width, adjustable width, or special corner width. By adjusting the position and size of the airbag, effective sealing can be achieved. At the same time, the dual protection of rubber sealing gaskets and water-expanding waterstops further improves the adaptability and water-stopping effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the utility model's assembled steel box seam quick water-stop device;

[0017] Figure 2 This is a structural diagram of the assembled steel plate box joint rapid water-stopping device from another perspective of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the transparent baffle in the present utility model;

[0019] Figure 4 It is a side view of the present utility model.

[0020] The numbers in the figure are:

[0021] 1. Steel box; 101. Tenon joint; 102. Tenon joint;

[0022] 2. End well; 3. Limiting steel block; 4. Rubber sealing pad; 401, water-expanding waterstop layer;

[0023] 5. Airbag; 6. Water-expanding waterstop; 7. Connecting seat; 8. Lifting ear; 9. Bolt. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] The following describes the preferred embodiments of the device of the present invention.

[0026] See also Figure 1-4 As shown, the assembled steel plate box joint quick water-stopping device includes a steel plate box 1, which is composed of several steel boxes spliced together. The opposite end faces of the steel plate box 1 are respectively formed with a convex tenon joint 102 and a concave tenon joint 101 for matching with the convex tenon joint 102 of the adjacent steel plate box 1. Through the mutual cooperation between the convex tenon joint 102 and the concave tenon joint 101, a tight connection between the steel plate boxes 1 is achieved, ensuring the sealing and stability of the joint. A limiting steel block 3 is provided on the inner wall of the concave tenon joint 101, and a groove for embedding a rubber sealing gasket 4 is formed between the two limiting steel blocks 3 and the inner wall of the concave tenon joint 101. Air bags 5 are pressed on the outer sides of the limiting steel blocks 3 on both sides, and a water-swelling waterstop strip 6 is provided at the bottom of the groove of the concave tenon joint 101 and connected to the inner side of the limiting steel block 3.

[0027] Furthermore, the cross section of the mortise and tenon joint 101 is trapezoidal, and a quick water-stopping device for the joint is provided in each mortise and tenon joint 101 .

[0028] Furthermore, the airbag 5 does not fit into the corners of the mortise and tenon joint 101. When quick water stopping is required, the airbag 5 is pressurized by external equipment. As the pressure in the airbag 5 increases, its volume expands rapidly and generates a strong extrusion force. The expanded airbag 5 first tightly presses the rubber sealing gasket 4, so that the rubber sealing gasket 4 is deformed and compressed, making it fit more closely to the inner wall of the mortise and tenon joint 101, eliminating any tiny gap between the rubber sealing gasket 4 and the seam, thereby improving the sealing performance.

[0029] Furthermore, several steel boxes are composed of five standard widths, four adjustable widths, one corner width, two ground-wall node widths and one 900mm width. The corner width is set at the corner of the end well 2, and one side of the corner width is sequentially provided with two standard widths, two adjustable widths, two standard widths and a node width connected to the inner wall of the end well 2, and the other side of the corner width is sequentially provided with a standard width, two adjustable widths, a 900mm width and a node width fitted to the other side of the end well 2.

[0030] Furthermore, a water-swelling waterstop layer 401 is bonded to the side of the rubber sealing gasket 4 away from the inner wall of the mortise and tenon joint 101. The rubber sealing gasket 4 is used to fill the gap at the joint of the steel plate box 1 to prevent moisture penetration. The rubber material has good elasticity and sealing properties, and can form a tight sealing layer at the joint to effectively block the moisture channel. When encountering moisture, the water-swelling waterstop layer 401 can quickly expand and fill the tiny gaps in the joint, further enhancing the sealing effect.

[0031] A plurality of through holes are formed inside the rubber sealing gasket 4, and a plurality of through grooves are formed on the side of the rubber sealing gasket 4 facing the groove wall of the mortise and tenon joint 101. The through holes form a through channel inside the rubber sealing gasket 4, which helps to maintain a stable shape and evenly transmit pressure when squeezed; the through grooves face the groove wall of the mortise and tenon joint 101, and can form a more complex sealing path at the joint, increasing the difficulty of moisture penetration.

[0032] Furthermore, lifting ears 8 are provided on the front and rear sides of the top of the steel plate box 1. By connecting the lifting ears 8 with the lifting equipment, several steel boxes can be conveniently spliced together, and connecting seats 7 are provided on the left and right sides of the front surface of the steel plate box 1. The connecting seat 7 on one side is fixedly connected to the connecting seat 7 of the other steel plate box 1 by bolts 9. The connecting seats 7 of adjacent steel plate boxes are fixedly connected by bolts 9. By tightening the bolts 9, sufficient pre-tightening force is generated between the connecting seats 7 to ensure that the connection between the steel plate boxes 1 is tight and reliable.

[0033] It is further described that the vertical spacing of the bolts 9 is 1.5m, which is adapted to the connection bases 7 on the opposite sides of the two steel boxes.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. The quick water-stop device for the joints of assembled steel plate boxes is characterized by: The invention comprises a steel plate box (1), wherein the steel plate box (1) is composed of a plurality of steel boxes spliced together, and the opposite end surfaces of the steel plate box (1) are respectively formed with a convex tenon joint (102) and a concave tenon joint (101) for matching with the convex tenon joint (102) of the adjacent steel plate box (1), the inner wall of the concave tenon joint (101) is provided with a limiting steel block (3), and a groove for embedding a rubber sealing gasket (4) is formed between the two limiting steel blocks (3) and the inner wall of the concave tenon joint (101), and air bags (5) are pressed on the outer sides of the limiting steel blocks (3) on both sides, and a water stop strip (6) that expands when exposed to water is provided at the bottom of the groove of the concave tenon joint (101) and is connected to the inner side of the limiting steel block (3).

2. The quick water-stopping device for the joints of assembled steel plate boxes according to claim 1 is characterized in that: A water-swelling water-stop layer (401) is bonded to the side of the rubber sealing pad (4) away from the inner wall of the mortise and tenon joint (101).

3. The quick water-stopping device for the joints of assembled steel plate boxes according to claim 1 is characterized in that: The airbag (5) does not fit into the corner of the mortise and tenon joint (101).

4. The quick water-stopping device for the joints of assembled steel plate boxes according to claim 1 is characterized in that: The front and rear sides of the top of the steel plate box (1) are both provided with lifting ears (8), and the left and right sides of the front surface of the steel plate box (1) are correspondingly provided with connecting seats (7), and the connecting seat (7) on one side is fixedly connected to the connecting seat (7) of the other steel plate box (1) by bolts (9).

5. The quick water-stopping device for the joints of assembled steel plate boxes according to claim 1 is characterized in that: The plurality of steel boxes are composed of five standard widths, four adjustable widths, one corner width, two ground-wall node widths and one 900mm width.

6. The quick water-stopping device for the joints of assembled steel plate boxes according to claim 1 is characterized in that: The cross section of the mortise and tenon joint (101) is trapezoidal, and a joint quick water-stopping device is provided in each of the mortise and tenon joints (101).