Civil engineering expansion joint waterproof structure

Abstract

The utility model provides a civil engineering expansion joint waterproof structure, and relates to the technical field of civil engineering. The civil engineering expansion joint waterproof structure comprises an outer protective cover, an inner protective cover is arranged in the outer protective cover, a pressure spring is connected between the outer protective cover and the inner protective cover, an air bag is connected into the inner protective cover, the lower end of the air bag is connected with an air strip, the two sides of the outer protective cover are connected with outer pressing plates, and the outer pressing plates are connected with the outer protective cover. An expansion bolt is arranged in the outer pressing plate. According to the civil engineering expansion joint waterproof structure, the outer sealing strip and the inner sealing strip are arranged and form double-layer sealing on the two sides of the expansion joint, the air bag and the air strip are arranged and plugged in the expansion joint, the expansion joint can be sealed, and therefore the device has the multi-layer sealing waterproof effect on the building expansion joint; and the pressing strip can also change along with the change, so that the expansion joint is blocked and sealed all the time, and the normal working effect of the expansion joint is not interfered.

Description

Technical Field

[0001] The utility model relates to a wood engineering expansion joint, in particular to a civil engineering expansion joint waterproof structure, belonging to the technical field of civil engineering. Background Art

[0002] Expansion joints play a vital role in construction and civil engineering. They are gaps set to cope with structural deformation caused by factors such as temperature changes (thermal expansion and contraction), humidity changes, and earthquakes. The setting of expansion joints can effectively disperse and reduce structural stress, avoid the formation of cracks, and thus extend the service life of the building.

[0003] Waterproofing of expansion joints is crucial to ensuring the integrity and service life of building structures, because once leakage occurs, it is likely to damage the building structure. However, traditional building expansion joints usually use caulking agents (such as silicone sealants, polysulfide sealants, etc.) to fill the expansion joints. However, this method, after long-term use, as the gap in the expansion joint changes, the caulking agent will gradually separate from the expansion joint, making it easy to cause problems such as cracking and water seepage.

[0004] To this end, we provide a civil engineering expansion joint waterproof structure to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a civil engineering expansion joint waterproof structure to solve the above problems. The specific technical solution is as follows:

[0006] A waterproof structure for expansion joints in civil engineering, comprising an outer protective cover, an inner protective cover arranged inside the outer protective cover, a pressure spring connected between the outer and inner protective covers, an air bag connected inside the inner protective cover, an air strip connected to the lower end of the air bag, outer pressure plates connected on both sides of the outer protective cover, expansion bolts arranged inside the outer pressure plates, an outer sealing strip connected to the lower end of the outer pressure plates, inner pressure plates connected on both sides of the inner protective cover, an inner sealing strip connected to the lower end of the inner pressure plates, and an adjustment slot provided at the outer end of the inner protective cover.

[0007] Preferably, the outer protective cover and the inner protective cover are both made of stainless steel with good corrosion resistance and high strength. The outer protective cover and the inner protective cover are both streamlined arc-shaped, and the inner protective cover is located at the outer end of the building expansion joint.

[0008] Preferably, the pressure spring is in a compressed state, the airbag is elastic, the air strip is located in the building expansion joint, the air strip is connected to the airbag, and the outer end of the airbag is connected to a gas hose, and the two are connected.

[0009] Preferably, the air delivery hose is located between the outer protective cover and the inner protective cover, and the side end of the air delivery hose is connected to a valve core, which is located in the outer protective cover and can be connected to an air pump.

[0010] Preferably, a mounting hole is opened in the outer pressure plate, the expansion bolt is connected in the mounting hole, the lower end of the expansion bolt is connected in the building, the outer sealing strip and the inner sealing strip are both in contact with the building surface, and a plurality of grooves are opened at the lower end of the outer sealing strip and the inner sealing strip.

[0011] Preferably, a first card slot and a second card slot are provided at the outer end of the outer protective cover, and protective plates are provided on both sides of the outer protective cover. The cross-section of the protective plate is a curved arc, and its lower end is in contact with the building surface. The expansion bolt is located at the lower end of the protective plate.

[0012] Preferably, the protective plate is a stainless steel thin plate, and a first clamping head and a second clamping head are connected to the lower end of the protective plate. The first clamping head is clamped in the first clamping slot, and the second clamping head is clamped in the second clamping slot.

[0013] Preferably, said.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The civil engineering expansion joint waterproof structure is provided with an outer sealing strip and an inner sealing strip, which form a double-layer seal on both sides of the expansion joint. By providing an air bag and an air strip, the air strip is plugged into the expansion joint of the building, which can seal the expansion joint. This device has a multi-layer sealing and waterproof effect on the expansion joint of the building, which can effectively prevent moisture from penetrating into the interior of the building through the expansion joint, protecting the building structure from water damage, and when the volume of the building material changes due to the thermal expansion and contraction effect, the size of the gap in the expansion joint will also change. When the expansion joint becomes smaller, the air strip will be squeezed, and part of the gas inside it can be squeezed into the air bag. When the expansion joint becomes larger, the air bag will squeeze part of the gas into the air strip under the action of the pressure spring. Therefore, when the gap of the expansion joint changes, the air strip can also change accordingly, so that the expansion joint is always blocked and sealed, and will not interfere with the normal working effect of the expansion joint.

[0016] 2. The waterproof structure of the expansion joint of the civil engineering project is provided with a protective plate, which can protect the expansion bolts to prevent them from being quickly corroded by wind and rain for a long time, and can effectively extend their service life. Specifically, after the expansion bolts are fixed to the outer protective cover, the first clamping head of the protective plate is inserted into the first clamping slot, and then the protective plate is bent with force to insert the second clamping head into the second clamping slot, and then released, the protective plate rebounds, and the first clamping head and the second clamping head are respectively clamped into the first clamping slot and the second clamping slot, so that the protective plate can be clamped and fixed, and at this time the lower end of the protective plate can fit with the surface of the building, and the expansion bolts can be wrapped at its lower end, so that the expansion bolts can be prevented from being blown by wind and rain, thereby extending the overall service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first card slot and the second card slot of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the first card slot and the second card slot of the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 5 For the utility model Figure 4 Schematic diagram of the structure of area A.

[0022] Description of the drawings: 1. Outer protective cover; 2. Inner protective cover; 3. Pressure spring; 4. Airbag; 5. Gas strip; 6. Outer pressure plate; 7. Expansion bolt; 8. Outer sealing strip; 9. Inner pressure plate; 10. Inner sealing strip; 11. Adjustment groove; 12. Gas hose; 13. Valve core; 14. First clamping slot; 15. Second clamping slot; 16. Protective plate; 17. First clamping head; 18. Second clamping head. DETAILED DESCRIPTION

[0023] The present invention will now be further described with reference to the accompanying drawings.

[0024] See also Figure 1 、 Figure 3 、 Figure 4 , including an outer protective cover 1, an inner protective cover 2 is arranged inside the outer protective cover 1, the outer protective cover 1 and the inner protective cover 2 are both made of stainless steel with good corrosion resistance and high strength, so as to ensure that the device can be used for a long time without being damaged by corrosion, the outer protective cover 1 and the inner protective cover 2 are both streamlined arcs, which can reduce wind resistance and reduce the environmental impact on the device, and the inner protective cover 2 is located at the outer end of the building expansion joint.

[0025] Please refer again Figure 3 、 Figure 4 A pressure spring 3 is connected between the outer protective cover 1 and the inner protective cover 2, and an adjusting groove 11 is opened at the outer end of the inner protective cover 2. The opening of the adjusting groove 11 can make the inner protective cover 2 bend, so that it can be better connected to the building surface. An airbag 4 is connected inside the inner protective cover 2. The airbag 4 is elastic, and the pressure spring 3 is in a compressed state. It can provide a downward thrust for the inner protective cover 2, thereby providing a thrust for the airbag 4, so that the airbag 4 can fit the building surface. The lower end of the airbag 4 is connected with a gas strip 5, which is located in the expansion joint of the building and is used to block and seal the expansion joint of the building. The gas strip 5 is connected to the airbag 4, and the outer end of the airbag 4 is connected with a gas hose 12, and the two are connected. The gas hose 12 is located between the outer protective cover 1 and the inner protective cover 2. The outer end of the gas hose 12 is connected with a valve core 13, which is located in the outer protective cover 1. The valve core 13 can be connected to an air pump, and the airbag 4 can be inflated through the valve core 13.

[0026] Please refer again Figure 4 、 Figure 5 The outer protective cover 1 is connected to outer pressure plates 6 on both sides, and expansion bolts 7 are arranged in the outer pressure plates 6. Mounting holes are opened in the outer pressure plates 6, and the expansion bolts 7 are connected in the mounting holes. The lower ends of the expansion bolts 7 are connected in the building. The device can be connected and fixed to the outer end of the expansion joint of the building through the expansion bolts 7. The lower end of the outer pressure plate 6 is connected to an outer sealing strip 8, and the inner protective cover 2 is connected to inner pressure plates 9 on both sides. The lower end of the inner pressure plate 9 is connected to an inner sealing strip 10. The outer sealing strip 8 and the inner sealing strip 10 are both in contact with the building surface, so that a double-layer seal can be formed on both sides of the expansion joint. A plurality of grooves are opened at the lower ends of the outer sealing strip 8 and the inner sealing strip 10. The design of the grooves can help the sealing strips better adapt to the irregularities of the building surface, provide more uniform pressure distribution, and reduce leakage.

[0027] Please refer again Figure 2 、 Figure 3 、 Figure 5 A first card slot 14 and a second card slot 15 are provided at the outer end of the outer protective cover 1. Protective plates 16 are provided on both sides of the outer protective cover 1. The cross-section of the protective plate 16 is a curved arc, and its lower end is in contact with the building surface. The expansion bolt 7 is located at the lower end of the protective plate 16. The protective plate 16 is a stainless steel thin plate. The lower end of the protective plate 16 is connected to a first clamp 17 and a second clamp 18. The first clamp 17 is clamped in the first card slot 14, and the second clamp 18 is clamped in the second card slot 15. The protective plate 16 is used to protect the expansion bolt 7 to prevent it from being quickly corroded and damaged by wind and rain.

[0028] When the present invention is in use: the air strip 5 is inserted into the expansion joint, and then the expansion bolt 7 is used to pass through the outer pressure plate 6 and drilled into the building, so that the outer protective cover 1 and the inner protective cover 2 can be fixed at the same time. At this time, the outer sealing strip 8 and the inner sealing strip 10 are both in contact with the surface of the building, and a double-layer seal can be formed on both sides of the expansion joint. Then an air pump is used to connect with the valve core 13, and air is inflated into the airbag 4 through the air supply hose 12, which will enable the airbag 4 and the air strip 5 to swell and expand. For this reason, the air strip 5 will be able to block and close the expansion joint, thereby completing the sealing. Finally, the protective plate 16 is clamped in the first clamping head 17 and the second clamping head 18 in the first clamping groove 14 and the second clamping groove 15, so that the protective plate 16 can be clamped, so that the protective plate 16 can wrap the expansion bolt 7 to protect it.

[0029] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A civil engineering expansion joint waterproof structure, comprising an outer protective cover (1), characterized in that: An inner protective cover (2) is arranged inside the outer protective cover (1), a pressure spring (3) is connected between the outer protective cover (1) and the inner protective cover (2), an air bag (4) is connected inside the inner protective cover (2), the lower end of the air bag (4) is connected to an air strip (5), both sides of the outer protective cover (1) are connected to outer pressure plates (6), expansion bolts (7) are arranged inside the outer pressure plates (6), the lower end of the outer pressure plates (6) is connected to an outer sealing strip (8), both sides of the inner protective cover (2) are connected to inner pressure plates (9), the lower end of the inner pressure plates (9) is connected to an inner sealing strip (10), and an adjustment groove (11) is provided at the outer end of the inner protective cover (2).

2. A civil engineering expansion joint waterproof structure according to claim 1, characterized in that: The outer protective cover (1) and the inner protective cover (2) are both made of stainless steel with good corrosion resistance and high strength. The outer protective cover (1) and the inner protective cover (2) are both streamlined arc-shaped. The inner protective cover (2) is located at the outer end of the building expansion joint.

3. The waterproof structure for expansion joints in civil engineering according to claim 1, characterized in that: The pressure spring (3) is in a compressed state, the air bag (4) is elastic, the air strip (5) is located in the building expansion joint, the air strip (5) is connected to the air bag (4), and the outer end of the air bag (4) is connected to a gas hose (12), and the two are connected.

4. A civil engineering expansion joint waterproof structure according to claim 3, characterized in that: The air delivery hose (12) is located between the outer protective cover (1) and the inner protective cover (2). The side end of the air delivery hose (12) is connected to a valve core (13). The valve core (13) is located in the outer protective cover (1). The valve core (13) can be connected to an air pump.

5. The civil engineering expansion joint waterproof structure according to claim 1, characterized in that: The outer pressure plate (6) is provided with a mounting hole, an expansion bolt (7) is connected in the mounting hole, the lower end of the expansion bolt (7) is connected in the building, the outer sealing strip (8) and the inner sealing strip (10) are both fitted with the building surface, and the lower ends of the outer sealing strip (8) and the inner sealing strip (10) are provided with a plurality of grooves.

6. The civil engineering expansion joint waterproof structure according to claim 1, characterized in that: The outer end of the outer protective cover (1) is provided with a first card slot (14) and a second card slot (15), and protective plates (16) are provided on both sides of the outer protective cover (1). The cross section of the protective plates (16) is curved arc-shaped, and the lower end thereof is in contact with the building surface. The expansion bolts (7) are located at the lower end of the protective plates (16).

7. A civil engineering expansion joint waterproof structure according to claim 6, characterized in that: The protective plate (16) is a stainless steel thin plate. The lower end of the protective plate (16) is connected to a first clamping head (17) and a second clamping head (18). The first clamping head (17) is clamped in the first clamping slot (14), and the second clamping head (18) is clamped in the second clamping slot (15).

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