Concrete permeability coefficient detection device

Abstract

The utility model belongs to the technical field of permeability coefficient detection devices, and discloses a concrete permeability coefficient detection device which comprises a water storage tank, a detection mechanism for detecting the permeability coefficient of a concrete column standard component is arranged on the water storage tank, a mounting plate is arranged above the water storage tank, and a turntable is arranged in the water storage tank; a mounting through hole communicating with the interior of the water storage tank is formed in the top of the rotating disc in a penetrating mode, the detection mechanism comprises a detection assembly, and the detection assembly comprises a measuring cylinder detachably connected with the mounting through hole, a concrete column standard part placing disc fixedly communicating with the top of the measuring cylinder and a test mold fixed to the bottom of the mounting plate and matched with the concrete column standard part; the detection mechanism further comprises a water supply assembly, a lifting assembly is arranged on one side of the water storage tank, and an annular sealing gasket is arranged on the inner top wall of the test mold. According to the device, by arranging the lifting assembly, the test mold and the concrete column standard part can be separated or connected, and workers can use the device conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of permeability coefficient testing devices, and in particular to a concrete permeability coefficient testing device. Background Technology

[0002] The permeability coefficient is one of the most important indicators of permeable concrete. It represents the amount of water that passes through a unit area per unit time. By testing the permeability coefficient, potential quality problems can be detected and addressed in a timely manner, ensuring the reliability and stability of permeable concrete in engineering projects.

[0003] Chinese utility model patent CN220289331U discloses a device for measuring the permeability coefficient of high-permeability concrete, comprising: a workbench with a placement groove at its upper end; a detection mechanism disposed inside the workbench, the upper end of which extends through to the upper end of the workbench; wherein, the detection mechanism includes a sealing component for ensuring a sealing effect, the sealing component being disposed on the inner wall of the workbench, the upper end of which extends through to the upper end of the workbench, an installation component being disposed on the surface of the sealing component, the installation component being disposed inside the workbench, the sealing component including a storage container disposed inside the placement groove, a locking block being fixedly connected to the surface of the storage container, the locking block being located inside an adjacent locking groove, the sealing component also including a bottom ring groove disposed inside the workbench, the bottom ring groove communicating with the placement groove, a sealing airbag being fixedly connected to the inner wall of the bottom ring groove, the surface of the sealing airbag contacting the lower end of the storage container. When the container is placed, it will come into contact with the upper end of the sealing airbag, so that the lower end of the container will be sealed by the sealing airbag. The sample inside the container will come into contact with the sealed airbag. Thus, the multiple sealed airbags can prevent water leakage from the annular surface of the sample, thereby ensuring the accuracy of the test data.

[0004] In the process of testing the permeability coefficient of concrete samples, the samples must first be placed in a storage container, and the side wall of the sample must be in contact with the sealed airbag to maintain a seal. When using the above method, it is inconvenient for staff to install and remove the samples. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a device for detecting the permeability coefficient of concrete.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a concrete permeability coefficient testing device, comprising a water storage tank, the water storage tank being a cylindrical structure with an open top, a testing mechanism for testing the permeability coefficient of a concrete column standard component being provided on the water storage tank, an installation plate being provided above the water storage tank, a turntable being provided inside the water storage tank, an installation through hole being provided through the top of the turntable and communicating with the inside of the water storage tank, the testing mechanism comprising a testing component, the testing component comprising a measuring cylinder detachably connected to the installation through hole, a placement plate fixedly communicating with the top of the measuring cylinder and used for placing the concrete column standard component to be tested, and a test mold fixed to the bottom of the installation plate and cooperating with the concrete column standard component, the testing mechanism further comprising a water supply component for injecting water into the top of the concrete column standard component when testing the permeability coefficient of the concrete column standard component, a lifting component for raising and lowering the installation plate being provided on one side of the water storage tank, and an annular sealing gasket being provided around the water outlet end of the water supply component on the inner top wall of the test mold.

[0007] By adopting the above technical solution, in the process of testing the permeability coefficient of concrete column standard components, the concrete column standard component is first placed in a placement tray. Then, the lifting component drives the mounting plate to descend, thereby lowering the test mold fixed to the mounting plate until the lower end of the test mold is in contact with the top of the placement tray. At this point, the concrete column standard component is completely isolated from the outside environment, and the concrete column standard component is in contact with the annular sealing gasket. Then, water is injected into the top of the concrete column standard component through the water supply component. The water will permeate through the concrete column standard component and enter the measuring cylinder through the placement tray. After a specified time, the water level in the measuring cylinder is read, and the permeability coefficient value is calculated according to the formula. After the permeability coefficient test of the concrete column standard component is completed, the lifting component drives the mounting plate to rise, until the concrete column standard component is completely exposed to the outside environment. The entire process only requires controlling the lifting component to separate or connect the test mold and the concrete column standard component, which is convenient for operators.

[0008] Furthermore, the detection components are arranged in multiple sets and evenly distributed about the axis of the water storage tank. The water supply components include a water injection pipe fixed and connected to the top of the test mold, a water supply pipe fixed to and connected to the side wall of the water injection pipe, a vertical pipe fixed and connected to the end of the water supply pipe away from the water injection pipe, a water pump fixed to the top of the mounting plate, a drain pipe fixed and connected to the outlet end of the water pump, and a pumping pipe fixed and connected to the inlet end of the water pump. The water injection pipe passes through the mounting plate and is fixed. The end of the pumping pipe away from the water pump passes through the top of the turntable and is slidably engaged. The end of the drain pipe away from the water pump is fixed and connected to the side wall of the vertical pipe. The number of water injection pipes and the number of water supply pipes are equal to the number of test molds and their positions correspond one-to-one.

[0009] By adopting the above technical solution, after the water pump starts working, it draws water out of the water storage tank through the water pumping pipe. First, the water enters the vertical pipe through the drain pipe, then the water enters the water supply pipe through the vertical pipe, and finally the water enters the water injection pipe through the water supply pipe and is injected into the top of the concrete column standard component through the water injection pipe to ensure that the permeability coefficient of the concrete column standard component is tested normally.

[0010] Furthermore, the axis of the annular sealing gasket coincides with the axis of the water injection pipe, a sealing ring is fixed at the lower end of the test mold, and an annular groove is opened on the top of the placement plate to fit into the sealing ring. When the sealing ring is inserted into the annular groove, the inner top wall of the test mold fits into the standard concrete column and abuts against the annular sealing gasket.

[0011] By adopting the above technical solution, the sealing ring and annular groove improve the sealing performance when the test mold is connected to the placement plate during the permeability coefficient test of standard concrete column components.

[0012] Furthermore, the turntable is rotatably installed inside the water storage tank, and a filter cylinder with a top opening is fixed at the bottom of the turntable. The water pumping pipe extends into the filter cylinder, and the distance between the lower end of the water pumping pipe and the inner bottom wall of the filter cylinder is greater than the distance between the lower end of the mold and the top of the placement plate. The water storage tank is equipped with a rotating component for driving the filter cylinder to rotate.

[0013] By adopting the above technical solution, the filter cartridge design reduces the probability of blockage caused by debris entering components such as the water pump.

[0014] Furthermore, an installation base plate is provided below the water storage tank, and an installation frame is fixed on the top of the installation base plate. The top of the installation frame is fixed to the bottom of the water storage tank. The lifting assembly includes an L-shaped rod fixed to the top of the installation base plate, a connecting frame fixed to the top of the installation plate, and an electric hydraulic push rod fixed to the top of the horizontal section of the L-shaped rod. The push rod end of the electric hydraulic push rod passes through the horizontal section of the L-shaped rod and is slidably engaged. The lower end of the push rod is fixed to the top of the connecting frame.

[0015] By adopting the above technical solution, the electric hydraulic push rod drives the push rod end to extend and retract after it is working, thereby achieving the purpose of lifting and lowering the test mold, so as to ensure the separation or connection between the test mold and the standard concrete column component.

[0016] Furthermore, the rotating assembly includes a rotating motor fixed to the top of the mounting base plate, a drive gear fixed to the output end of the rotating motor, a rotating rod fixed to the bottom of the filter cartridge, and a driven gear fixedly sleeved on the rotating rod and meshing with the drive gear. The rotating rod passes through the bottom of the water storage tank and is rotatably connected to the bottom of the water storage tank through a rotating shaft seal.

[0017] By adopting the above technical solution, after the rotating motor works, it drives the driving gear to rotate, thereby causing the driven gear meshing with the driving gear, the rotating rod connected to the driven gear, the filter cylinder connected to the rotating rod, and the turntable fixed to the filter cylinder to all rotate, so as to pick up the standard concrete column component.

[0018] Furthermore, a conical groove is provided at the center of the inner bottom wall of the placement tray, and the distance between the conical groove and the axis of the placement tray gradually decreases from top to bottom.

[0019] By adopting the above technical solution, it is ensured that water flows smoothly through the placement plate into the measuring cylinder.

[0020] In summary, this utility model has the following beneficial effects: In this application, by setting up a lifting component, the test mold and the standard concrete column can be separated or connected, which facilitates the use of staff. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural diagram from point 1;

[0023] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0024] In the diagram: 1. Water storage tank; 2. Testing mechanism; 21. Testing component; 211. Measuring cylinder; 212. Placement tray; 213. Test mold; 22. Water supply component; 221. Water injection pipe; 222. Water supply pipe; 223. Vertical pipe; 224. Water pump; 225. Drainage pipe; 226. Pumping pipe; 3. Mounting plate; 4. Turntable; 5. Lifting component; 51. L-shaped rod; 52. Connecting frame; 53. Electro-hydraulic push rod; 6. Annular sealing gasket; 7. Sealing ring; 8. Annular groove; 9. Filter cartridge; 10. Mounting base plate; 11. Mounting base frame; 12. Rotating component; 121. Rotating motor; 122. Driving gear; 123. Rotating rod; 124. Driven gear. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figures 1-3As shown in the figure, this application discloses a concrete permeability coefficient testing device, including a water storage tank 1, a mounting plate 3, a turntable 4, a lifting assembly 5, a testing mechanism 2, and a rotating assembly 12. The water storage tank 1 is a cylindrical structure with an open top, and the side walls of the water storage tank 1 are made of transparent material. A mounting base plate 10 is provided below the water storage tank 1, and a mounting frame 11 is fixed to the top of the mounting base plate 10. The top of the mounting frame 11 is fixed to the bottom of the water storage tank 1. The mounting plate 3 is located above the water storage tank 1, and the turntable 4 is located inside the water storage tank 1. The top of the turntable 4 has a through hole that communicates with the inside of the water storage tank 1. An annular sealing gasket 6 is provided on the top wall of the mold, surrounding the water outlet of the water supply assembly 22. The axis of the annular sealing gasket 6 coincides with the axis of the water injection pipe 221.

[0027] The lifting assembly 5 is located on one side of the water storage tank 1 and is used to lift the mounting plate 3. The lifting assembly 5 includes an L-shaped rod 51, a connecting frame 52, and an electro-hydraulic push rod 53. The L-shaped rod 51 is fixed to the top of the mounting base plate 10, and the connecting frame 52 is fixed to the top of the mounting plate 3. The electro-hydraulic push rod 53 is fixed to the top of the horizontal section of the L-shaped rod 51. The model of the electro-hydraulic push rod 5 is DYT2500~7000. The specific working principle and method are existing technologies and do not need to be described in detail. The push rod end of the electro-hydraulic push rod 53 passes through the horizontal section of the L-shaped rod 51 and slides in fit. The lower end of the push rod of the electro-hydraulic push rod 53 is fixed to the top of the connecting frame 52.

[0028] The testing mechanism 2 is installed on the water storage tank 1 and is used to test the permeability coefficient of the concrete column standard component. The testing mechanism 2 includes a testing component 21 and a water supply component 22.

[0029] Multiple sets of testing components 21 are evenly distributed about the axis of the water storage tank 1, and each testing component 21 includes a measuring cylinder 211, a placement plate 212, and a test mold 213. The measuring cylinder 211 is detachably connected to the mounting through hole, the placement plate 212 is fixedly connected to the top of the measuring cylinder 211 and is used to place the concrete column standard to be tested, and the test mold 213 is fixed to the bottom of the mounting plate 3 and mates with the concrete column standard.

[0030] The water supply assembly 22 is used to inject water into the top of the concrete column standard component during the permeability coefficient test. The water supply assembly 22 includes a water injection pipe 221, a water supply pipe 222, a vertical pipe 223, a water pump 224, a drain pipe 225, and a pumping pipe 226. The water injection pipe 221 is fixed and connected to the top of the test mold 213, and the water injection pipe 221 passes through the mounting plate 3 and is fixed. The water supply pipe 222 is fixed to the side wall of the water injection pipe 221 and is connected. The number of water injection pipes 221 and the number of water supply pipes 222 are equal to the number of test molds 213 and their positions correspond one-to-one. The vertical pipe 223 is fixed and connected to the end of the water supply pipe 222 away from the water injection pipe 221. The water pump 224 is fixed to the top of the mounting plate 3. The drain pipe 225 is fixed and connected to the outlet end of the water pump 224, and the end of the drain pipe 225 away from the water pump 224 is fixed and connected to the side wall of the vertical pipe 223. The pump pipe 226 is fixed and connected to the inlet end of the water pump 224, and the end of the pump pipe 226 away from the water pump 224 passes through the top of the turntable 4 and slides in fit.

[0031] A sealing ring 7 is fixed to the lower end of the test mold 213, and an annular groove 8 is provided on the top of the placement tray 212 to engage with the sealing ring 7. When the sealing ring 7 is engaged with the annular groove 8, the inner top wall of the test mold 213 engages with the standard concrete column and abuts against the annular sealing gasket 6.

[0032] During the permeability coefficient test of the concrete column standard component, the concrete column standard component is first placed in the placement tray 212. At this time, after the electric hydraulic push rod 53 is activated, the push rod end of the electric hydraulic push rod 53 is extended, which causes the mounting plate 3 to lower the test mold 213 until the lower end of the test mold 213 is in contact with the top of the placement tray 212. Then, after the water pump 224 is activated, water is drawn out of the water storage tank 1 through the water pumping pipe 226 and injected into the top of the concrete column standard component in sequence through the vertical pipe 223, the water supply pipe 222 and the water injection pipe 221. The water will permeate through the concrete column standard component and enter the measuring cylinder 211 through the placement tray 212. After a specified time, the water level in the measuring cylinder 211 is read and the permeability coefficient value is calculated according to the formula. After the permeability coefficient test of the concrete column standard component is completed, the electric hydraulic push rod 53 is activated and its push rod end retracts, which causes the mounting plate 3 to lift the test mold 213 until the concrete column standard component is completely exposed to the outside. The entire process only requires controlling the lifting component 5 to separate or connect the test mold 213 and the concrete column standard component, which is convenient for staff to use.

[0033] The turntable 4 is rotatably mounted inside the water storage tank 1, and a filter cylinder 9 with an open top is fixed to the bottom of the turntable 4. A water suction pipe 226 extends into the filter cylinder 9, and the distance between the lower end of the water suction pipe 226 and the inner bottom wall of the filter cylinder 9 is greater than the distance between the lower end of the test mold 213 and the top of the placement tray 212. The filter cylinder 9 reduces the probability of blockage caused by debris entering components such as the water pump 224.

[0034] A rotating assembly 12 is mounted on the water storage tank 1 and is used to drive the filter cartridge 9 to rotate. The rotating assembly 12 includes a rotating motor 121, a driving gear 122, a rotating rod 123, and a driven gear 124. The rotating motor 121 is fixed to the top of the mounting base plate 10. The driving gear 122 is fixed to the output end of the rotating motor 121, and the rotating rod 123 is fixed to the bottom of the filter cartridge 9. The rotating rod 123 passes through the bottom of the water storage tank 1 and is rotatably connected to the bottom of the water storage tank 1 via a rotating shaft seal. The driven gear 124 is fixedly sleeved on the rotating rod 123 and meshes with the driving gear 122. After the rotating motor 121 operates, it drives the driving gear 122 to rotate, thereby causing the driven gear 124 meshing with the driving gear 122, the rotating rod 123 connected to the driven gear 124, the filter cartridge 9 connected to the rotating rod 123, and the turntable 4 fixed to the filter cartridge 9 to all rotate, facilitating the removal of the concrete column standard component.

[0035] A conical groove is provided at the center of the inner bottom wall of the placement tray 212, and the distance between the conical groove and the axis of the placement tray 212 gradually decreases from top to bottom. This ensures that water flows smoothly through the placement tray 212 into the measuring cylinder 211.

[0036] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A concrete permeability coefficient testing device, comprising a water storage tank (1), wherein the water storage tank (1) is a cylindrical structure with an open top, and the water storage tank (1) is provided with a testing mechanism (2) for testing the permeability coefficient of a standard concrete column, characterized in that: An installation plate (3) is provided above the water storage tank (1). A turntable (4) is provided inside the water storage tank (1). An installation through hole communicating with the inside of the water storage tank (1) is provided through the top of the turntable (4). The detection mechanism (2) includes a detection component (21). The detection component (21) includes a measuring cylinder (211) detachably connected to the installation through hole, a placement plate (212) fixedly connected to the top of the measuring cylinder (211) and used to place the concrete column standard to be tested, and a test mold (213) fixed to the bottom of the installation plate (3) and cooperating with the concrete column standard. The detection mechanism (2) also includes a water supply component (22) for injecting water into the top of the concrete column standard when the permeability coefficient of the concrete column standard is tested. A lifting component (5) for raising and lowering the installation plate (3) is provided on one side of the water storage tank (1). An annular sealing gasket (6) is provided around the water outlet of the water supply component (22) on the inner top wall of the test mold (213).

2. The concrete permeability coefficient testing device according to claim 1, characterized in that: The detection component (21) is provided in multiple sets and is evenly distributed about the axis of the water storage tank (1). The water supply component (22) includes a water injection pipe (221) fixed to and connected to the top of the test mold (213), a water supply pipe (222) fixed to and connected to the side wall of the water injection pipe (221), a vertical pipe (223) fixed to and connected to the end of the water supply pipe (222) away from the water injection pipe (221), a water pump (224) fixed to the top of the mounting plate (3), and a drain pipe (223) fixed to and connected to the outlet end of the water pump (224). 25) and a pumping pipe (226) fixed and connected to the water inlet end of the water pump (224). The water injection pipe (221) passes through the mounting plate (3) and is fixed. The end of the pumping pipe (226) away from the water pump (224) passes through the top of the turntable (4) and is slidably fitted. The end of the drain pipe (225) away from the water pump (224) is fixed and connected to the side wall of the vertical pipe (223). The number of water injection pipes (221) and the number of water supply pipes (222) are equal to the number of test molds (213) and their positions correspond one-to-one.

3. The concrete permeability coefficient testing device according to claim 2, characterized in that: The axis of the annular sealing gasket (6) coincides with the axis of the water injection pipe (221). A sealing ring (7) is fixed at the lower end of the test mold (213). An annular groove (8) is opened on the top of the placement plate (212) to fit into the sealing ring (7). When the sealing ring (7) is inserted into the annular groove (8), the inner top wall of the test mold (213) fits into the standard concrete column and abuts against the annular sealing gasket (6).

4. The concrete permeability coefficient testing device according to claim 3, characterized in that: The turntable (4) is rotatably installed inside the water storage tank (1). A filter cylinder (9) with a top opening is fixed at the bottom of the turntable (4). The water pumping pipe (226) extends into the filter cylinder (9). The distance between the lower end of the water pumping pipe (226) and the inner bottom wall of the filter cylinder (9) is greater than the distance between the lower end of the test mold (213) and the top of the placement plate (212). A rotating assembly (12) for driving the filter cylinder (9) to rotate is provided on the water storage tank (1).

5. The concrete permeability coefficient testing device according to claim 1, characterized in that: A mounting base plate (10) is provided below the water storage tank (1). A mounting frame (11) is fixed on the top of the mounting base plate (10). The top of the mounting frame (11) is fixed to the bottom of the water storage tank (1). The lifting assembly (5) includes an L-shaped rod (51) fixed to the top of the mounting base plate (10), a connecting frame (52) fixed to the top of the mounting plate (3), and an electric hydraulic push rod (53) fixed to the top of the horizontal section of the L-shaped rod (51). The push rod end of the electric hydraulic push rod (53) passes through the horizontal section of the L-shaped rod (51) and slides. The lower end of the push rod of the electric hydraulic push rod (53) is fixed to the top of the connecting frame (52).

6. The concrete permeability coefficient testing device according to claim 4, characterized in that: The rotating assembly (12) includes a rotating motor (121) fixed to the top of the mounting base plate (10), a drive gear (122) fixed to the output end of the rotating motor (121), a rotating rod (123) fixed to the bottom of the filter cartridge (9), and a driven gear (124) fixedly sleeved on the rotating rod (123) and meshing with the drive gear (122). The rotating rod (123) passes through the bottom of the water storage tank (1) and is rotatably connected to the bottom of the water storage tank (1) through a rotating shaft seal.

7. The concrete permeability coefficient testing device according to claim 1, characterized in that: A conical groove is provided at the center of the inner bottom wall of the placement tray (212), and the distance between the conical groove of the placement tray (212) and the axis of the placement tray (212) gradually decreases from top to bottom.

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