A concrete water penetration monitoring device

Abstract

The utility model relates to highway bridge construction detection technical field especially, more particularly to a kind of concrete water seepage monitoring devices, including water tank, maintenance door, adjusting module, water seepage monitoring module and concrete test piece;By adopting the composite sealing structure of electromagnetic lock cover and magnetic attraction probe, avoid the aging leakage problem of rubber ring caused by bolt fastening, still keep stable sealing under long-term high pressure;Adjusting module is driven push rod lifting by air cylinder, adapts to concrete test piece of different density and size, without manual adjustment bolt, significantly improve experimental efficiency, by the ultrasonic interaction module, pressure diaphragm, flow sensor inside water seepage monitoring module, can real-time capture water seepage path and internal defect, break through traditional static test limitation, improve data accuracy, synchronous monitoring water seepage pressure, flow rate and concrete internal microcrack expansion trend, provide multi-dimensional data support for durability evaluation, improve overall monitoring effect.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge construction inspection technology, and in particular to a concrete seepage monitoring device. Background Technology

[0002] Concrete seepage refers to the phenomenon of water seeping through pores or cracks inside the concrete. This phenomenon can have a significant impact on the durability and function of concrete structures. Monitoring devices are specialized equipment used to detect the water seepage pressure, flow rate, or seepage performance in concrete structures in real time.

[0003] Meanwhile, traditional seepage monitoring devices use welded steel frames to fix concrete specimens. The mold is sealed with bolts and sealing rings. A water pump delivers water pressure to the concrete specimen in the sealed mold. The concrete's impermeability is judged by monitoring the amount of seepage or the pressure decay. The mold relies on bolt fastening and rubber ring sealing, which is prone to leakage under long-term high pressure, affecting the accuracy of the data. It can only test static seepage pressure and cannot monitor the seepage path or internal defects in real time. Utility Model Content

[0004] To overcome the limitations of traditional monitoring devices that use welded steel frames to fix concrete specimens and seal the molds with bolts and sealing rings, which rely on bolt tightening and rubber ring sealing, and are prone to leakage under long-term high pressure, affecting data accuracy, and can only test static seepage pressure, this invention provides a concrete seepage monitoring device.

[0005] The technical solution is as follows: A concrete seepage monitoring device includes a water tank, a maintenance door, an adjustment module, a seepage monitoring module, and concrete specimens; the water tank is used to store seepage monitoring experiments, the outside of the water tank is sealed with a maintenance door to facilitate the filling of water, the top of the water tank is provided with several sets of concrete specimens of different densities for seepage monitoring, the seepage monitoring module is fitted on the water tank corresponding to the concrete specimens, and the two sides of the water tank are linearly provided with adjustment modules to drive the seepage monitoring module to rise and fall to adapt to different concrete specimens.

[0006] Furthermore, a pressure-bearing box is fixed to the top of the water tank. Several sets of placement holes corresponding to concrete specimens are arranged on the top of the pressure-bearing box. A counterweight box is installed in the center of the placement hole. Several sets of inserts are arranged around the perimeter of the placement hole on the water tank. A magnetic insertion rod is provided in the center of the insert. Several sets of return holes are arranged around the counterweight box.

[0007] Furthermore, the center of the counterweight box is connected to a lifting pipe, the top of the lifting pipe is connected to a water pump module, the water pump module is equipped with a wireless module, the outside of the lifting pipe has several sets of spray holes circumferentially opened from bottom to top, the inside of the spray holes is equipped with a pressure pump, the bottom of the lifting pipe is connected to a water pipe, the bottom of the water pipe is equipped with a water suction cylinder, the outside of the water suction cylinder has several sets of suction holes linearly opened from bottom to top, and a sealing ring is attached to the inside of the placement hole.

[0008] Furthermore, the adjustment module includes a connecting frame, one end of which is fixedly connected to a fixing ring, the center of which is connected to a guide sleeve, the center of which is connected to a push rod, the top of which is fitted with a connecting arm for connecting the seepage monitoring module, the top of which is fixedly connected to a cylinder, and the end of the connecting arm away from the push rod having an observation port. The cylinder drives the push rod and the connecting arm to move the seepage monitoring module up and down.

[0009] Furthermore, the seepage monitoring module includes a cover and a sealing sleeve. The cover is fixed to the top of the sealing sleeve. Several sets of electromagnetic locking sleeves are arranged circumferentially near the bottom edge of the cover. A controller is located on the top of the electromagnetic locking sleeve. A lithium battery pack is located on the top of the controller. A flow sensor is located at the center of the bottom of the cover.

[0010] Furthermore, a pressure diaphragm is attached to the inner side of the sealing sleeve, and a pressure sensing module is installed inside the pressure diaphragm. Several sets of ultrasonic interactive modules electrically connected to the pressure sensing modules are linearly arranged from bottom to top on the outside of the sealing sleeve. The ultrasonic interactive modules are covered with a heat insulation sleeve, and an indicator light is electrically connected to the outer end of the ultrasonic interactive modules. The ultrasonic interactive modules include a wireless module, a power supply module, an ultrasonic generator, and an ultrasonic receiver that are electrically connected to each other.

[0011] Furthermore, a reaction lamp is electrically connected to the top of the flow sensor, the flow sensor is electrically connected to the lithium battery pack, and a flow probe is located at the bottom of the flow sensor.

[0012] Furthermore, several sets of positioning holes for matching magnetic insertion rods are circumferentially opened near the edge of the top of the concrete specimen, and a penetration space is opened in the center of the concrete specimen.

[0013] The beneficial effects are: This utility model achieves a composite sealing structure using an electromagnetic locking sleeve and a magnetic insertion rod, avoiding the problem of rubber ring aging and leakage caused by bolt tightening, and maintaining stable sealing performance under long-term high pressure; The adjustment module uses a cylinder to drive the push rod to rise and fall, adapting to concrete specimens of different densities and sizes. It eliminates the need for manual bolt adjustments, significantly improving experimental efficiency. Through the ultrasonic interactive module, pressure diaphragm, and flow sensor inside the seepage monitoring module, it can capture seepage paths and internal defects in real time, breaking through the limitations of traditional static testing, improving data accuracy, and simultaneously monitoring seepage pressure, flow rate, and the expansion trend of microcracks inside the concrete. This provides multi-dimensional data support for durability assessment and enhances the overall monitoring effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a concrete seepage monitoring device according to the present invention; Figure 2 This is a schematic diagram of the water tank of this utility model; Figure 3 This is a schematic diagram of the explosion of the lifting pipe and the concrete specimen of this utility model; Figure 4 This is a schematic diagram of the adjustment module of this utility model; Figure 5 This is a schematic diagram of the seepage monitoring module of this utility model.

[0015] In the attached diagram, the following are the reference numerals: 1. Water tank; 2. Maintenance door; 3. Adjustment module; 4. Leakage monitoring module; 5. Concrete specimen; 101. Pressure box; 102. Placement hole; 103. Counterweight box; 104. Return hole; 105. Lifting pipe; 106. Water pump module; 107. Spray nozzle; 108. Sealing ring; 109. Water pipe; 110. Suction cylinder; 111. Suction hole; 301. Connecting frame; 30 2. Fixing ring; 303. Guide sleeve; 304. Push rod; 305. Connecting arm; 306. Cylinder; 307. Observation port; 401. Cover; 402. Reaction lamp; 403. Electromagnetic lock sleeve; 404. Controller; 405. Sealing sleeve; 406. Pressure diaphragm; 407. Ultrasonic interactive module; 408. Insulation sleeve; 409. Indicator light; 501. Positioning hole; 502. Permeation space. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0017] Concrete seepage refers to the phenomenon of water infiltrating through internal pores, microcracks, or interface defects. Essentially, it is the migration behavior of fluids driven by capillary action, pressure gradients, and concentration differences. This seepage behavior poses multiple hazards to engineering structures.

[0018] Moisture carries corrosive media such as chloride ions and sulfates into the concrete, accelerating steel corrosion and concrete spalling.

[0019] Long-term water seepage increases the connectivity of pores inside concrete, reduces compressive strength by 20%-40%, and may cause freeze-thaw damage.

[0020] Water seepage in underground engineering projects can cause equipment corrosion, electrical short circuits, and even trigger a chain reaction of foundation settlement.

[0021] Concrete seepage monitoring devices are specialized equipment used to monitor the water seepage pressure, seepage flow rate, or seepage performance in concrete structures in real time. They are primarily used in water conservancy projects, transportation infrastructure, and other fields. Their core functions include: Poor aggregate gradation can lead to the formation of capillary pores in concrete, causing the free water after hydration to evaporate and creating bleeding channels. Inadequate compaction of concrete can lead to various defects, resulting in increased water seepage. Leakage in formwork or improper treatment of construction joints can directly create through-seepage paths. Temperature stress causes plastic shrinkage cracks to form on the surface of large-volume concrete. When water seeps into concrete, it causes carbonation, leading to concrete spalling, exposed reinforcement, and accelerated steel corrosion.

[0022] Repeated freeze-thaw cycles can reduce the compressive strength of concrete by 15%-30%. Chloride ions penetrate through the seepage channels, leading to an increased rate of damage to the passivation film on the steel reinforcement. The carbonation depth of the laitance layer can reach 10-15 mm / year, far exceeding the 2-3 mm / year of normal concrete. Long-term leakage may cause the concrete protective layer to peel off, leading to major defects such as exposed reinforcement.

[0023] The permeability of a structure can be assessed by measuring the pore water pressure or seepage water pressure inside concrete using sensors such as piezometers.

[0024] For example, a seepage meter can quantify the amount of water passing through a concrete cross-section per unit time, reflecting the overall leakage situation.

[0025] Specialized instruments are used to determine the permeability coefficient of concrete through standardized tests, which is then used for quality assessment.

[0026] like Figures 1-5 As shown, a concrete seepage monitoring device includes a water tank 1, a maintenance door 2, an adjustment module 3, a seepage monitoring module 4, and concrete specimens 5. The water tank 1 is used to store seepage monitoring experiments. The exterior of the water tank 1 is sealed with a maintenance door 2 to facilitate the filling of water. The top of the water tank 1 is provided with several sets of concrete specimens 5 of different densities for seepage monitoring. The seepage monitoring module 4 is fitted onto the water tank 1 corresponding to the concrete specimens 5. The two sides of the water tank 1 are linearly provided with adjustment modules 3 to drive the seepage monitoring module 4 to rise and fall to adapt to different concrete specimens 5.

[0027] Please see Figures 2-3 In this embodiment, a pressure-bearing box 101 is fixedly connected to the top of the water tank 1. Several sets of placement holes 102 corresponding to the concrete specimens 5 are arranged on the top of the pressure-bearing box 101. A counterweight box 103 is installed at the center of each placement hole 102. Several sets of inserts are arranged circumferentially around the placement holes 102 on the water tank 1. A magnetic insertion rod is located at the center of each insert. Several sets of return holes 104 are arranged circumferentially on the counterweight box 103. A lifting pipe 105 is connected to the center of the counterweight box 103. A water pump module 106 is connected to the top of the lifting pipe 105. The pump module 106, designated as SMCITV2050-212N, has a wireless module inside, model NordicnRF52840. The outside of the lift pipe 105 is provided with several sets of spray holes 107 arranged circumferentially from bottom to top. The spray holes 107 are provided with pressure pumps. The bottom of the lift pipe 105 is connected to a water pipe 109. The bottom of the water pipe 109 is provided with a water suction cylinder 110. The outside of the water suction cylinder 110 is provided with several sets of water suction holes 111 arranged linearly from bottom to top. A sealing ring 108 is attached to the inside of the placement hole 102.

[0028] Please see Figures 3-4 In this embodiment, the adjustment module 3 includes a connecting frame 301. A fixing ring 302 is fixedly connected to one end of the connecting frame 301. A guide sleeve 303 is connected to the center of the fixing ring 302. A push rod 304 is connected to the center of the guide sleeve 303. A connecting arm 305 for connecting the seepage monitoring module 4 is sleeved on the top of the push rod 304. A cylinder 306 is fixedly connected to the top of the push rod 304. An observation port 307 is opened at the end of the connecting arm 305 away from the push rod 304. The cylinder 306 drives the push rod 304 and the connecting arm 305 to move the seepage monitoring module 4 up and down. The seepage monitoring module 4 includes a cover 401 and a sealing sleeve 405. The cover 401 is fixedly connected to the top of the sealing sleeve 405. Several sets of electromagnetic locking sleeves 403, model Festo, are arranged circumferentially near the bottom edge of the cover 401. The ADN-25-10-AP electromagnetic lock sleeve 403 has a controller 404 on its top, which is an STM32H743 series MCU. The controller 404 has a lithium battery pack on its top, which is a TIBQ34Z100-G1. The bottom center of the sleeve cover 401 has a flow sensor, which is a Siemens SITRANSFMMAG1100.

[0029] Please see Figures 3-5In this embodiment, a pressure diaphragm 406, model Honeywell 26PC series micro-pressure sensor, is attached to the inner side of the sealing sleeve 405. The pressure diaphragm 406 has a pressure sensing module inside. Several sets of ultrasonic interactive modules 407, model Murata MA40S4S, are linearly arranged from bottom to top on the outside of the sealing sleeve 405 and electrically connected to the pressure sensing module. The ultrasonic interactive module 407 is covered by a heat insulation sleeve 408. An indicator light 409 is electrically connected to the outer end of the ultrasonic interactive module 407. The ultrasonic interactive module 407 includes a wireless module, a power supply module, an ultrasonic generator, and an ultrasonic receiver that are electrically connected to each other. A reaction lamp 402 is electrically connected to the top of the flow sensor. The flow sensor is electrically connected to the lithium battery pack. A flow probe is provided at the bottom of the flow sensor. Several sets of positioning holes 501 for matching magnetic plugs are circumferentially opened near the edge of the top of the concrete specimen 5. A penetration space 502 is opened in the center of the concrete specimen 5.

[0030] Concrete specimen 5 is quickly positioned via positioning hole 501 and magnetic insertion rod. Electromagnetic locking sleeve 403 is attracted and locked after being energized, forming a boltless active sealing structure. Water pump module 106 applies controllable water pressure to specimen via lifting pipe 105 and spray hole 107. Sealing ring 108 prevents edge leakage. Pressure diaphragm 406 provides real-time feedback on local pressure changes. Ultrasonic interactive module 407 transmits and receives ultrasonic waves, and determines the seepage path and internal defects through signal attenuation. Flow sensor detects seepage rate. Data is transmitted to external terminal via wireless module. Corresponding indicator light 409 and reaction light 402 provide graded alarms according to leakage intensity. The designated area can be quickly observed. Cylinder 306 drives connecting arm 305 to rise and fall, causing seepage monitoring module 4 to fit against specimen surface, adapting to different experimental conditions.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete seepage monitoring device, comprising a water tank (1); characterized in that: It also includes a maintenance door (2), an adjustment module (3), a seepage monitoring module (4), and concrete specimens (5); a water tank (1) for storing seepage monitoring experiments, the outside of the water tank (1) is sealed with a maintenance door (2) to facilitate the filling of water, the top of the water tank (1) is provided with several sets of concrete specimens (5) of different densities for seepage monitoring, the water tank (1) is fitted with a seepage monitoring module (4) corresponding to the concrete specimens (5), and both sides of the water tank (1) are linearly provided with an adjustment module (3) to drive the seepage monitoring module (4) to rise and fall to adapt to different concrete specimens (5).

2. The concrete seepage monitoring device according to claim 1, characterized in that, A pressure box (101) is fixed to the top of the water tank (1). Several sets of placement holes (102) corresponding to concrete specimens (5) are arranged on the top of the pressure box (101). A counterweight box (103) is installed in the center of the placement hole (102). Several sets of inserts are arranged around the placement hole (102) on the water tank (1). A magnetic insertion rod is provided in the center of the insert. Several sets of return holes (104) are arranged around the counterweight box (103).

3. The concrete seepage monitoring device according to claim 2, characterized in that, The center of the counterweight box (103) is connected to the lifting pipe (105), the top of the lifting pipe (105) is connected to the water pump module (106), the water pump module (106) is equipped with a wireless module, the outside of the lifting pipe (105) is provided with several sets of spray holes (107) from bottom to top, the inside of the spray holes (107) is equipped with a pressure pump, the bottom of the lifting pipe (105) is connected to the water pipe (109), the bottom of the water pipe (109) is equipped with a water suction cylinder (110), the outside of the water suction cylinder (110) is provided with several sets of water suction holes (111) from bottom to top, and the inside of the placement hole (102) is fitted with a sealing ring (108).

4. The concrete seepage monitoring device according to claim 1, characterized in that, The adjustment module (3) includes a connecting frame (301), a fixing ring (302) is fixedly connected to one end of the connecting frame (301), a guide sleeve (303) is connected to the center of the fixing ring (302), a push rod (304) is connected to the center of the guide sleeve (303), a connecting arm (305) for connecting the seepage monitoring module (4) is sleeved on the top of the push rod (304), a cylinder (306) is fixedly connected to the top of the push rod (304), and an observation port (307) is opened at the end of the connecting arm (305) away from the push rod (304). The cylinder (306) drives the push rod (304) and the connecting arm (305) to drive the seepage monitoring module (4) to rise and fall.

5. A concrete seepage monitoring device according to claim 1, characterized in that, The seepage monitoring module (4) includes a cover (401) and a sealing sleeve (405). The top of the sealing sleeve (405) is fixed to the cover (401). Several sets of electromagnetic locking sleeves (403) are arranged circumferentially near the bottom edge of the cover (401). A controller (404) is provided on the top of the electromagnetic locking sleeve (403). A lithium battery pack is provided on the top of the controller (404). A flow sensor is provided at the bottom center of the cover (401).

6. A concrete seepage monitoring device according to claim 5, characterized in that, A pressure diaphragm (406) is attached to the inner side of the sealing sleeve (405). A pressure sensing module is provided inside the pressure diaphragm (406). Several sets of ultrasonic interactive modules (407) electrically connected to the pressure sensing module are linearly arranged from bottom to top on the outside of the sealing sleeve (405). The ultrasonic interactive module (407) is covered with a heat insulation sleeve (408). An indicator light (409) is electrically connected to the outer end of the ultrasonic interactive module (407). The ultrasonic interactive module (407) includes a wireless module, a power supply module, an ultrasonic generator, and an ultrasonic receiver that are electrically connected to each other.

7. A concrete seepage monitoring device according to claim 5, characterized in that, The top of the flow sensor is electrically connected to a reaction lamp (402), the flow sensor is electrically connected to a lithium battery pack, and the bottom of the flow sensor is equipped with a flow probe.

8. A concrete seepage monitoring device according to claim 1, characterized in that, The concrete specimen (5) has several sets of positioning holes (501) for matching magnetic insertion rods circumferentially opened at the top edge, and a permeation space (502) is opened in the center of the concrete specimen (5).

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