A highway bridge pavement water seepage detection device

Abstract

The utility model relates to construction detection technical field discloses a kind of highway bridge pavement water seepage detection devices, including water supply cylinder, further include: mobile seat, with the water supply cylinder bottom integrated molding, the mobile seat is used to support water supply cylinder;In the utility model, mobile seat can be moved to the detection point locking positioning by bottom locking universal wheel, and after corrugated pipe drain valve and air release valve between mobile seat and water supply cylinder are sequentially opened, detection water liquid in water supply cylinder can enter mobile seat by corrugated pipe, then, drain valve is closed, asphalt pavement is wet at this time, and when pulling piston plate, a small amount of detection water liquid on asphalt detection point can be blown by air pressure, floating dust on detection point pavement is blown away from the lower part of sealing cover, so that when subsequent detection, detection water liquid is hindered, resulting in that there is certain error in water seepage detection coefficient.

Description

Technical Field

[0001] This utility model relates to the field of construction testing technology, specifically a water seepage detection device for highway bridge pavement. Background Technology

[0002] When testing for water seepage on asphalt-lined highway bridges, water is typically injected to allow it to permeate the asphalt pavement. During this process, the time it takes for the water to fall is observed and recorded. Since the internal cross-section of the water supply mechanism is constant, the permeability coefficient of the road surface can be calculated based on the difference in water height per unit time.

[0003] For example, Chinese Patent Publication No. CN223513099U discloses a water seepage detection device for highway bridge pavement, including a water supply mechanism. A water-holding cylinder for detecting water load is fixedly installed on the top of the water supply mechanism. A counterweight is fixedly installed on the water supply mechanism. An air release valve is provided through the top of the water supply mechanism. A lifting mechanism that contacts the top of the water being tested is slidably connected inside the water-holding cylinder. A marking mechanism is provided on the top of the water supply mechanism to facilitate the observation of the water drop speed.

[0004] The water supply mechanism described in the aforementioned cited document is placed on the asphalt pavement to be tested. Water is then supplied by turning on the water supply mechanism, allowing the air at the bottom of the mechanism to be released through the vent valve. The water tank is then filled, and the lifting mechanism falls as the water drips. This allows the user to observe the water drop position from a higher marker on the lifting mechanism. Such a detection device makes it easier to detect water seepage and provides more accurate results.

[0005] However, when using the aforementioned highway bridge pavement seepage detection device, firstly, after the asphalt pavement is laid, dust adheres to the surface, which can block the asphalt seepage pores to a certain extent. This will introduce a certain measurement error when water is injected into the detection point during subsequent testing. Furthermore, the base of the detection device is connected to the asphalt pavement by the weight of the pressing block itself, resulting in poor sealing at the detection point. This allows the water to diffuse quickly outward from the asphalt pavement detection point, indirectly leading to inaccurate measurement data. Utility Model Content

[0006] The purpose of this invention is to provide a water seepage detection device for highway bridge pavement, which enables the pre-cleaning of surface dust at the asphalt pavement detection points of highway bridges, making the detection data more accurate and effective. Furthermore, by applying pressure, the sealing between the detection device and the detection point is increased, resulting in more precise detection data.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water seepage detection device for highway bridge pavement, comprising a water supply cylinder, and further comprising:

[0008] The movable seat is integrally formed with the bottom of the water supply cylinder. The movable seat is used to support the water supply cylinder. The movable seat includes a corrugated pipe that is fixedly connected through the bottom of the water supply cylinder. A sealing cover is fixedly installed at the bottom end of the corrugated pipe.

[0009] A power assembly is installed on one side of the top of the movable base. The power assembly includes a worm gear reducer motor fixedly installed on the edge of one side of the top of the movable base. A drive gear is fixedly installed on the output end of the worm gear reducer motor.

[0010] A transmission assembly is installed on the inner circumference of the movable seat. The transmission assembly includes guide plates that are fixedly installed at equal intervals on the inner circumference of the movable seat. A positive lead screw is rotatably connected to the inner wall of the guide plate, and a passive gear is fixedly installed at the top of the positive lead screw.

[0011] A fixed connecting plate is installed in the inner wall of the movable seat, and a reverse screw is rotatably connected to the inner wall of the corresponding guide plate inside the movable seat.

[0012] A control component is installed on the bellows at the junction of the water supply cylinder and the movable seat. The control component includes a drain valve and an air release valve fixedly installed on the bellows.

[0013] Preferably, the water supply cylinder and the sealing cover are connected by the corrugated pipe, and the bottom of the sealing cover is integrally formed with a corrugated sleeve.

[0014] Preferably, an inner and outer gear rings are rotatably connected on the top circumference of the movable seat, and a protective plate is fixedly installed at the top edge of the movable seat. The protective plate is used to protect the driving gear, the inner and outer gear rings, and the driven gear.

[0015] Preferably, the inner and outer edges of the inner and outer gear rings mesh with the outer edges of the driving gear and the driven gear, respectively.

[0016] Preferably, a lifting plate is slidably connected inside the corresponding guide plate, and a locking universal wheel is fixedly installed at the bottom end of the lifting plate. The end of the lifting plate away from the locking universal wheel is connected to the forward lead screw through a threaded connection.

[0017] Preferably, one end of the fixed connecting plate slides inside the corresponding guide plate, the other end of the fixed connecting plate is fixedly connected to the outside of the sealing cover, and the end of the fixed connecting plate away from the sealing cover is connected to the reverse lead screw through a threaded engagement.

[0018] Preferably, an air storage cylinder is fixedly installed at the output end of the vent valve, and a piston plate is slidably connected inside the air storage cylinder.

[0019] Preferably, the piston plate has an I-shaped cross-section, and the drain valve and the air release valve are respectively located on the bellows and arranged vertically.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] In this invention, the movable seat can be moved to the test point and locked in place by the bottom locking casters. After the drain valve and air release valve on the corrugated pipe between the movable seat and the water supply cylinder are opened in sequence, the test water in the water supply cylinder can enter the movable seat through the corrugated pipe. Then, the drain valve is closed, and the asphalt pavement is wetted. When the piston plate is pulled, a small amount of test water at the asphalt test point can be blown away by air pressure, which blows away the floating dust on the pavement at the test point from under the sealing cover. This avoids the asphalt seepage pores being covered by floating dust, which would obstruct the test water during subsequent testing and cause a certain error in the seepage detection coefficient.

[0022] In this invention, when the worm gear reducer motor drives the active gear to transmit the inner and outer gear rings, the inner and outer gear rings transmit multiple sets of passive gears. Multiple sets of lifting plates and fixed connecting plates can then slide up and down along the corresponding guide plates. The parameters of the forward and reverse lead screws are matched, and their thread directions are opposite. This allows the locking casters at the bottom of the moving seat to move from their supporting positions into the moving seat, bringing the moving seat closer to the road surface detection point. The rubber corrugated sleeve is pressed downwards by the external fixed connecting plate of the sealing cover through the threads, ensuring a tight fit with the road surface at the detection point. This reduces the amount of water diffusing to the outside of the detection point when adding testing water, resulting in more accurate detection data. Furthermore, the positions of the multiple sets of locking casters and the sealing cover at the bottom of the moving seat can be electrically controlled and staggered, making it easier for this seepage detection device to perform detection operations on long highway bridge surfaces. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the side cross-sectional structure of this utility model;

[0025] Figure 3 This is a partial structural diagram of the water supply cylinder in this utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the movable seat in this utility model;

[0027] Figure 5 for Figure 3 A magnified view of the structure at point A in the middle;

[0028] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0029] In the diagram: 100, water supply cylinder; 200, movable seat; 300, power component; 400, transmission component; 500, fixed connecting plate; 600, control component; 20, protective plate; 21, sealing cover; 22, bellows; 211, bellows sleeve; 31, worm gear reducer motor; 32, drive gear; 33, internal and external gear rings; 41, guide plate; 42, forward lead screw; 43, driven gear; 44, lifting plate; 45, locking caster wheel; 51, reverse lead screw; 61, drain valve; 62, vent valve; 63, air storage cylinder; 64, piston plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Please see Figure 1-6 This utility model provides a technical solution: a water seepage detection device for highway bridge pavement, including a water supply cylinder 100, and further comprising:

[0032] The movable base 200 is integrally formed with the bottom of the water supply cylinder 100. The movable base 200 is used to support the water supply cylinder 100. The movable base 200 includes a corrugated pipe 22 that is fixedly connected through the bottom of the water supply cylinder 100. A sealing cover 21 is fixedly installed at the bottom end of the corrugated pipe 22.

[0033] The power assembly 300 is installed on one side of the top of the movable base 200. The power assembly 300 includes a worm gear reducer motor 31 fixedly installed on the edge of one side of the top of the movable base 200. A drive gear 32 is fixedly installed at the output end of the worm gear reducer motor 31.

[0034] The transmission assembly 400 is installed on the inner circumference of the movable seat 200. The transmission assembly 400 includes guide plates 41 that are fixedly installed on the inner circumference of the movable seat 200 at equal intervals. A positive lead screw 42 is rotatably connected to the inner wall of the guide plate 41. A passive gear 43 is fixedly installed at the top of the positive lead screw 42.

[0035] A fixed connecting plate 500 is installed in the inner wall of the movable seat 200, and a reverse screw 51 is rotatably connected in the inner wall of the corresponding guide plate 41 inside the movable seat 200.

[0036] The control component 600 is installed on the bellows 22 at the junction of the water supply cylinder 100 and the movable seat 200. The control component 600 includes a drain valve 61 and an air release valve 62 fixedly installed on the bellows 22.

[0037] The water supply cylinder 100 is connected to the sealing cover 21 by a corrugated pipe 22. The bottom of the sealing cover 21 is integrally formed with a corrugated sleeve 211. The rubber corrugated sleeve 211 is pressed downward by the external fixing connecting plate 500 of the sealing cover 21 through the thread, so that it fits tightly with the road surface of the detection point. In this way, when the detection water is added to the detection point in the future, the amount of water that diffuses to the outside of the detection point is reduced, thereby making the detection point data more accurate.

[0038] The movable base 200 has an inner and outer gear ring 33 rotatably connected to its top circumference. A protective plate 20 is also fixedly installed at the top edge of the movable base 200. The protective plate 20 is used to protect the driving gear 32, the inner and outer gear rings 33, and the driven gear 43. The inner and outer edges of the inner and outer gear rings 33 mesh with the outer edges of the driving gear 32 and the driven gear 43, respectively. When the worm gear reducer motor 31 drives the driving gear 32 to transmit the inner and outer gear rings 33, the inner and outer gear rings 33 transmit multiple sets of driven gears 43. Then, multiple sets of lifting plates 44 and fixed connecting plates 500 can slide up and down along the corresponding guide plates 41. This allows the positions of multiple sets of locking universal wheels 45 and sealing covers 21 at the bottom of the movable base 200 to be electrically controlled and staggered, which makes it easier for the seepage detection device to perform detection operations on long highway bridge surfaces.

[0039] The guide plate 41 is internally connected to a lifting plate 44, and a locking caster 45 is fixedly installed at the bottom of the lifting plate 44. The end of the lifting plate 44 away from the locking caster 45 is connected to the forward screw 42 by a threaded engagement. One end of the fixed connecting plate 500 slides inside the corresponding guide plate 41, and the other end of the fixed connecting plate 500 is fixedly connected to the outside of the sealing cover 21. The end of the fixed connecting plate 500 away from the sealing cover 21 is connected to the reverse screw 51 by a threaded engagement. After the multiple sets of lifting plates 44 and fixed connecting plates 500 are adjusted in position by sliding up and down the corresponding guide plate 41, the rubber corrugated sleeve 211 is pressed downward by the fixed connecting plate 500 outside the sealing cover 21 through the thread, so that it fits tightly against the road surface at the detection point. In this way, when the detection liquid is added to the detection point later, the amount of liquid that diffuses to the outside of the detection point is reduced, thereby making the detection point data more accurate.

[0040] The air release valve 62 has an air storage cylinder 63 fixedly installed at its output end. A piston plate 64 is slidably connected inside the air storage cylinder 63. The piston plate 64 has an I-shaped cross-section. The water release valve 61 and the air release valve 62 are arranged vertically on the bellows 22. After the water release valve 61 and the air release valve 62 on the bellows 22 between the moving seat 200 and the water supply cylinder 100 are opened in sequence, the test water in the water supply cylinder 100 can enter the moving seat 200 through the bellows 22. Then, the water release valve 61 is closed, and the asphalt pavement is wetted. When the piston plate 64 is pulled, the piston plate 64 changes the internal gas volume as it moves back and forth in the air storage cylinder 63 due to the cooperation of the one-way valve at the outer end of the inner cavity of the air storage cylinder 63. This allows a small amount of test water on the asphalt test point below to be blown away by the air pressure, and the floating dust on the road surface at the test point is blown away from below the sealing cover 21.

[0041] In this embodiment, after the drain valve 61 in the seepage detection device is opened, the detection liquid injected into the water supply cylinder 100 can enter the interior of the movable seat 200 through the corrugated pipe 22. The float inside the water supply cylinder 100 will change with the height difference of the liquid. After reading the data by the height difference of the float, the seepage coefficient of the asphalt pavement of the highway bridge can be obtained by dividing the liquid level height difference by the unit time. The calculation scheme of the seepage coefficient of the highway bridge pavement is clearly recorded and disclosed in the above-mentioned background art announcement document, and will not be repeated here.

[0042] In this embodiment, before testing the road surface test points of the highway bridge, the movable seat 200 can be moved to the test point via the bottom locking caster 45. After the drain valve 61 and the air release valve 62 on the corrugated pipe 22 between the movable seat 200 and the water supply cylinder 100 are opened in sequence, the test water in the water supply cylinder 100 can enter the movable seat 200 through the corrugated pipe 22. Then, the drain valve 61 is closed, and the asphalt pavement is wetted. When the piston plate 64 is repeatedly pulled, the piston plate 64 moves back and forth in the air storage cylinder 63, changing the internal gas volume. This can pre-clean the surface of the wetted asphalt pavement test point, so that the small amount of test water on the asphalt test point can be blown away by air pressure, and the floating dust on the test point pavement is blown away from under the sealing cover 21. This avoids the asphalt seepage pores being covered by floating dust, which would obstruct the test water during subsequent testing and cause a certain error in the seepage detection coefficient.

[0043] In this embodiment, when the worm gear reducer motor 31 drives the active gear 32 to transmit the inner and outer gear rings 33, the inner and outer gear rings 33 transmit multiple sets of passive gears 43. After these gears transmit the gears 33, multiple sets of lifting plates 44 and fixed connecting plates 500 can slide up and down along the corresponding guide plates 41. The parameters of the forward lead screw 42 and the reverse lead screw 51 are matched, and their thread directions are opposite. This allows the locking universal wheels 45 at the bottom of the moving seat 200 to move from the support position into the moving seat 200, bringing the moving seat 200 closer to the road surface detection point. The rubber corrugated sleeve 211 is pressed downward by the external fixed connecting plate 500 of the sealing cover 21 through the threads, making it tightly fit with the road surface at the detection point. This reduces the amount of water that diffuses to the outside of the detection point when the detection water is subsequently added, thus making the detection point data more accurate. Furthermore, the positions of the multiple sets of locking universal wheels 45 and the sealing cover 21 at the bottom of the moving seat 200 can be electrically controlled and staggered, which makes it easier for the seepage detection device to perform detection operations on long highway bridge surfaces.

[0044] Working principle: When using the water seepage detection device for highway bridge pavement, before testing the asphalt pavement testing point, the movable seat 200 can be moved to the testing point and locked in position by the bottom locking caster 45, making the testing device more stable at the testing point. After opening the drain valve 61 and the air release valve 62 on the corrugated pipe 22 between the movable seat 200 and the water supply cylinder 100 in sequence, the testing water in the water supply cylinder 100 can enter the movable seat 200 through the corrugated pipe 22. Then, the drain valve 61 is closed, and the asphalt pavement is wetted. When the piston plate 64 is pulled, a small amount of testing water on the asphalt testing point can be blown by air pressure, which blows away the floating dust on the road surface at the testing point from under the sealing cover 21.

[0045] Then, when the worm gear reducer motor 31 drives the active gear 32 to transmit the inner and outer gear rings 33, the inner and outer gear rings 33 transmit multiple sets of passive gears 43. After these gears transmit the gears 33, multiple sets of lifting plates 44 and fixed connecting plates 500 can slide up and down along the corresponding guide plates 41. The parameters of the forward lead screw 42 and the reverse lead screw 51 are matched, and their thread directions are opposite. This allows the locking universal wheel 45 at the bottom of the moving seat 200 to move from the support position to inside the moving seat 200, bringing the moving seat 200 closer to the road surface detection point. The rubber corrugated sleeve 211 is pressed downward by the external fixed connecting plate 500 of the sealing cover 21 through the thread, making it fit tightly against the road surface at the detection point. This reduces the amount of water that diffuses to the outside of the detection point when adding detection water to the detection point later, thus making the detection point data more accurate.

[0046] Finally, after closing the air release valve 62, the water release valve 61 can be opened. The water in the water supply cylinder 100 can then enter the sealing cover 21 through the corrugated pipe 22 to seal the road surface. Subsequently, the permeability coefficient of the road bridge can be calculated by recording the change in water level in the water supply cylinder 100 per unit time.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting water seepage in the pavement of a highway bridge, comprising a water supply cylinder (100), characterized in that, Also includes: The movable seat (200) is integrally formed with the bottom of the water supply cylinder (100). The movable seat (200) is used to support the water supply cylinder (100). The movable seat (200) includes a corrugated pipe (22) that is fixedly connected through the bottom of the water supply cylinder (100). A sealing cover (21) is fixedly installed at the bottom end of the corrugated pipe (22). A power assembly (300) is installed on one side of the top of the movable seat (200). The power assembly (300) includes a worm gear reducer motor (31) fixedly installed on the edge of the top side of the movable seat (200). A drive gear (32) is fixedly installed at the output end of the worm gear reducer motor (31). A transmission assembly (400) is installed on the inner circumference of the movable seat (200). The transmission assembly (400) includes a guide plate (41) fixedly installed at equal intervals on the inner circumference of the movable seat (200). A positive lead screw (42) is rotatably connected in the inner wall of the guide plate (41). A passive gear (43) is fixedly installed at the top of the positive lead screw (42). A fixed connecting plate (500) is installed in the inner wall of the movable seat (200), and a reverse screw (51) is rotatably connected in the inner wall of the corresponding guide plate (41) inside the movable seat (200). The control component (600) is installed on the bellows (22) at the junction of the water supply cylinder (100) and the movable seat (200). The control component (600) includes a drain valve (61) and an air release valve (62) fixedly installed on the bellows (22).

2. The seepage detection device for highway bridge pavement according to claim 1, characterized in that: The water supply cylinder (100) and the sealing cover (21) are connected by the corrugated pipe (22), and the bottom of the sealing cover (21) is integrally formed with a corrugated sleeve (211).

3. The seepage detection device for highway bridge pavement according to claim 2, characterized in that: The top circumference of the movable seat (200) is rotatably connected with an inner and outer gear ring (33), and a protective plate (20) is fixedly installed at the top edge of the movable seat (200). The protective plate (20) is used to protect the driving gear (32), the inner and outer gear ring (33), and the driven gear (43).

4. The seepage detection device for highway bridge pavement according to claim 3, characterized in that: The inner and outer edges of the inner and outer gear rings (33) mesh with the outer edges of the driving gear (32) and the driven gear (43), respectively.

5. The seepage detection device for highway bridge pavement according to claim 4, characterized in that: The guide plate (41) is slidably connected to a lifting plate (44), and a locking universal wheel (45) is fixedly installed at the bottom of the lifting plate (44). The end of the lifting plate (44) away from the locking universal wheel (45) is connected to the forward screw (42) by a threaded connection.

6. The seepage detection device for highway bridge pavement according to claim 5, characterized in that: One end of the fixed connecting plate (500) slides inside the corresponding guide plate (41), and the other end of the fixed connecting plate (500) is fixedly connected to the outside of the sealing cover (21). The end of the fixed connecting plate (500) away from the sealing cover (21) is connected to the reverse lead screw (51) by a threaded engagement.

7. The seepage detection device for highway bridge pavement according to claim 6, characterized in that: The air release valve (62) has an air storage cylinder (63) fixedly installed at its output end, and a piston plate (64) is slidably connected inside the air storage cylinder (63).

8. The seepage detection device for highway bridge pavement according to claim 7, characterized in that: The piston plate (64) has an I-shaped cross-section, and the drain valve (61) and the air release valve (62) are respectively located on the bellows (22) and arranged vertically.

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