A concrete testing device

Abstract

The utility model discloses a kind of concrete detection devices, it is related to concrete detection technical field, including filter water tank, pivot and carousel, the upper portion of filter water tank is rotatably installed with pivot by bearing, pivot top is installed with carousel, four placement grooves are set up on the carousel, through-hole is set up in the middle of placement groove, anti-permeability test cylinder is placed in the placement groove, the bottom of anti-permeability test cylinder is installed with threaded head, the utility model is rotated by motor drive carousel, drives four anti-permeability test cylinder circulation switching station, so that operator can carry out anti-permeability test in certain station, utilize intermittent time in other station and parallelly load into to be detected test block or remove completed test block, this kind of multitask overlapping design avoids the waiting gap of traditional single-station device, realizes nearly continuous detection process, greatly improves detection throughput, especially suitable for batch concrete test block rapid screening, saves artificial time cost.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically a concrete testing device. Background Technology

[0002] Concrete, as a widely used construction material, is characterized by abundant raw materials, low price, and simple production process. Furthermore, its high compressive strength, good durability, and wide strength grade range make its strength directly related to the safety and service life of buildings. In construction, the impermeability of concrete is a key indicator, affecting the durability of structures in humid environments. For example, in dams and underground engineering projects, insufficient impermeability can lead to leakage and corrosion. Therefore, impermeability testing must be conducted during concrete production and use to assess its resistance to seepage under actual pressure, ensuring project quality.

[0003] In the prior art, utility model patent CN222561498U discloses a concrete testing device for building construction. This device includes components such as a water recovery tank, a seepage resistance test chamber, support legs, a seepage resistance test tank, and a water receiving cylinder. It achieves simultaneous testing of multiple test blocks by setting up three side-by-side seepage resistance test tanks and uses a booster pump and water pressure sensor for pressurization testing. Specifically, the device injects water into the seepage resistance test tanks through the main water injection pipe and branch water injection pipes to test the seepage volume of concrete test blocks under different water pressures. However, the aforementioned prior art has significant shortcomings: Firstly... First, the device uses a fixed anti-permeability test tank design. Although it can test three test blocks simultaneously, it lacks a workstation switching function. This means that operators cannot load and unload test blocks in parallel during the testing process. They must wait until the current test is completely finished before they can process other test blocks. This reduces testing efficiency, especially in batch testing scenarios, which will cause time waste. Second, the anti-permeability test tank and the water receiving cylinder of this device are fixedly connected. When taking out the test blocks, a person needs to reach into the test tank to take them out. Since the test blocks and the test tank are size-matched, it is inconvenient to take out the test blocks after reaching in, making it difficult to take out the test blocks. Utility Model Content

[0004] The purpose of this invention is to provide a concrete testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution;

[0006] A concrete testing device includes a filter water tank, a rotating shaft, and a turntable. The rotating shaft is rotatably mounted on the upper part of the filter water tank via bearings. A turntable is mounted on the top of the rotating shaft. Four placement slots are circumferentially formed on the turntable, with a through hole in the center of each slot. A permeability test cylinder is placed in each slot. A threaded head is installed at the bottom of each permeability test cylinder, and the threaded head passes through the through hole and is threadedly connected to a water receiving cylinder located at the bottom of the turntable. A drain valve is installed at the bottom of the water receiving cylinder. A large gear is mounted on the rotating shaft. A small gear meshes with the large gear on one side. The small gear is fixedly connected to the output shaft of the motor installed on the water filter tank. The water filter tank has four water inlets facing the water receiving cylinders. The water filter tank has an outer filter layer and an inner filter layer installed from the outside to the inside. A water pump is installed on the bottom of the water filter tank. The water pump inlet is connected to a suction pipe installed at the bottom of the water filter tank. A water delivery pipe is installed on the water pump outlet. The upper opening of the water delivery pipe faces the upper opening of one of the water filter tanks.

[0007] As a further embodiment of this utility model: a sealing cap is threaded onto the upper part of the anti-permeability test cylinder, and an air nozzle and a pressure gauge are installed on the sealing cap.

[0008] As a further improvement of this utility model, the bottom of the filter water tank is equipped with support legs.

[0009] As a further embodiment of this utility model: a first slag discharge pipe is installed at the bottom of the filter tank on the outside of the outer filter layer, and a second slag discharge pipe is installed at the bottom of the filter tank between the outer filter layer and the inner filter layer. Control valves are installed on both the first slag discharge pipe and the second slag discharge pipe.

[0010] As a further improvement of this utility model, the water receiving cylinder is provided with a capacity scale.

[0011] As a further improvement of this utility model, the inner diameter of the impermeability test cylinder is adapted to the size of a circular standard concrete test block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a motor to drive a turntable to rotate, which in turn drives four anti-permeability test cylinders to switch between work stations in a cyclical manner. This allows operators to perform anti-permeability tests at one work station while using the intervals to load test blocks to be tested or remove completed test blocks at other work stations. This multi-task overlapping design avoids the waiting gaps of traditional single-workstation devices, realizes a near-continuous testing process, and greatly improves the testing throughput. It is especially suitable for the rapid screening of batches of concrete test blocks and saves labor time costs.

[0014] 2. The permeability test cylinder of this utility model is detachably connected to the water receiving cylinder by a threaded head, allowing the operator to directly remove the entire test cylinder from the turntable and easily handle the replacement of test blocks on the workbench. This modular design simplifies the operation steps, reduces the risk of misoperation caused by complex disassembly, and facilitates maintenance and calibration, thereby improving the practicality of the device and the user experience. In particular, it can reduce labor intensity in high-frequency testing scenarios. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a concrete testing device.

[0016] Figure 2 This is a partial structural diagram of a concrete testing device.

[0017] Figure 3 A concrete testing device Figure 1 Top sectional view of the middle filter water tank.

[0018] 1. Filter tank; 2. Rotating shaft; 3. Turntable; 4. Large gear; 5. Motor; 6. Small gear; 7. Placement slot; 8. Through hole; 9. Permeability test cylinder; 10. Sealing cap; 11. Threaded head; 12. Water receiving cylinder; 13. Drain valve; 14. Outer filter layer; 15. Inner filter layer; 16. Water inlet; 17. Water pump; 18. Suction pipe; 19. Water delivery pipe; 20. First slag discharge pipe; 21. Second slag discharge pipe; 22. Support leg; 23. Air nozzle; 24. Pressure gauge. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2In this embodiment of the present invention, a concrete testing device includes a filter water tank 1, a rotating shaft 2, and a turntable 3. The rotating shaft 2 is rotatably mounted on the upper part of the filter water tank 1 via a bearing. The turntable 3 is mounted on the top of the rotating shaft 2. Four placement slots 7 are opened on the circumference of the turntable 3. A through hole 8 is opened in the middle of the placement slots 7. A permeability test cylinder 9 is placed in the placement slots 7. A threaded head 11 is installed at the bottom of the permeability test cylinder 9. The threaded head 11 passes through the through hole 8 and is threadedly connected to a water receiving cylinder 12 set at the bottom of the turntable 3. A capacity scale line is set on the water receiving cylinder 12 so that the operator can intuitively and quickly read the seepage data, simplify the permeability coefficient calculation process, improve the testing efficiency, and reduce human reading errors. A drain valve 13 is installed at the bottom of the water receiving cylinder 12. A large gear 4 is installed on the rotating shaft 2. A small gear 6 that meshes with the large gear 4 is set on one side of the large gear 4. The small gear 6 is fixedly connected to the output shaft of the motor 5 installed on the filter water tank 1.

[0021] A sealing cap 10 is threaded onto the upper part of the permeability test cylinder 9. An air nozzle 23 and a pressure gauge 24 are installed on the sealing cap 10. By installing the sealing cap 10 on the upper part of the permeability test cylinder 9 and setting the air nozzle 23 and pressure gauge 24, the test block can be quickly sealed and the internal pressure can be monitored in real time. This facilitates pressurized permeability testing and improves the accuracy and repeatability of the test data.

[0022] Please see Figure 1-3 The filter tank 1 has four water inlets 16 facing the four water inlets 12. The filter tank 1 has an outer filter layer 14 and an inner filter layer 15 installed from the outside to the inside. A water pump 17 is installed on the bottom of the filter tank 1. The inlet of the water pump 17 is connected to the suction pipe 18 installed at the bottom of the filter tank 1. A water delivery pipe 19 is installed on the outlet of the water pump 17. The upper opening of the water delivery pipe 19 is set towards the upper opening of one of the filter tanks 1.

[0023] A first slag discharge pipe 20 is installed at the bottom of the filter tank 1 on the outside of the outer filter layer 14. A second slag discharge pipe 21 is installed at the bottom of the filter tank 1 between the outer filter layer 14 and the inner filter layer 15. Control valves are installed on both the first slag discharge pipe 20 and the second slag discharge pipe 21. The first slag discharge pipe 20 and the second slag discharge pipe 21 are set up with control valves to facilitate the regular cleaning of impurities in the filter tank 1, avoid clogging, extend the service life of the device, and reduce maintenance costs.

[0024] The bottom of the filter tank 1 is equipped with support legs 22. Support legs 22 enhance the overall stability and vibration resistance of the device, prevent the detection accuracy from being affected by shaking during operation, and facilitate ground adjustment and movement.

[0025] The inner diameter of the impermeability test cylinder 9 is matched with the size of the circular standard concrete test block, ensuring a tight fit during test block installation, avoiding side leakage that could interfere with test results, and improving the standardization and reliability of the test.

[0026] The working principle of this utility model is:

[0027] In use, first place the circular standard concrete test block into the impermeability test cylinder 9, then start the water pump 17 to inject water into the impermeability test cylinder 9, then tighten the sealing cap 10 and pressurize the impermeability test cylinder 9 by filling it with air through the air nozzle 23, and observe the pressure value through the pressure gauge 24. When the pressure reaches the preset value, record the pressure value and start timing, observe the amount of water seeping out of the corresponding water cylinder 12, and calculate the permeability coefficient of the concrete by recording the amount of seepage and the corresponding time, and judge the impermeability performance of the concrete. After the test, open the drain valve 13 to drain the concrete. Water seeping from the water collection cylinder 12 and the remaining water in the impermeability test cylinder 9 are discharged, filtered through the filter layer in the filter tank 1, and then pumped out again by the water pump 17 for the next use. After the test is completed, the motor 5 is started to drive the small gear 6 to mesh with the large gear 4, which drives the rotating shaft 2 to rotate the turntable 3 90° each time, adjusting the position of the impermeability test cylinder 9 so that the new impermeability test cylinder 9 rotates to the test position and repeats the above steps for testing. Meanwhile, other positions allow personnel to load test blocks to be tested or remove completed test blocks in parallel, realizing multi-task overlap.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete testing device, comprising a filter water tank (1), a rotating shaft (2), and a turntable (3), characterized in that: The upper part of the filter tank (1) is rotatably mounted with a rotating shaft (2) via a bearing. A turntable (3) is mounted on the top of the rotating shaft (2). Four placement slots (7) are opened around the circumference of the turntable (3). A through hole (8) is opened in the middle of each placement slot (7). A permeability test cylinder (9) is placed in each placement slot (7). A threaded head (11) is installed at the bottom of the permeability test cylinder (9). The threaded head (11) passes through the through hole (8) and is threadedly connected to a water receiving cylinder (12) located at the bottom of the turntable (3). A drain valve (13) is installed at the bottom of the water receiving cylinder (12). A large gear (4) is mounted on the rotating shaft (2). A corresponding valve is provided on one side of the large gear (4). A meshing pinion (6) is fixedly connected to the output shaft of a motor (5) installed on a water filter tank (1). The water filter tank (1) has four water inlets (16) facing the water inlets (12). The water filter tank (1) has an outer filter layer (14) and an inner filter layer (15) installed from the outside to the inside. A water pump (17) is installed on the bottom surface of the water filter tank (1). The inlet of the water pump (17) is connected to a suction pipe (18) installed at the bottom of the water filter tank (1). A water delivery pipe (19) is installed on the outlet of the water pump (17). The upper opening of the water delivery pipe (19) faces the upper opening of one of the water filter tanks (1).

2. The concrete testing device according to claim 1, characterized in that: The upper part of the impermeability test cylinder (9) is threaded with a sealing cap (10), and the sealing cap (10) is equipped with an air nozzle (23) and a pressure gauge (24).

3. The concrete testing device according to claim 1, characterized in that: The bottom of the filter tank (1) is equipped with support legs (22).

4. A concrete testing device according to claim 1, characterized in that: The bottom of the filter tank (1) is equipped with a first slag discharge pipe (20) on the outside of the outer filter layer (14), and a second slag discharge pipe (21) is installed at the bottom of the filter tank (1) between the outer filter layer (14) and the inner filter layer (15). Control valves are installed on both the first slag discharge pipe (20) and the second slag discharge pipe (21).

5. A concrete testing device according to claim 1, characterized in that: The water receiving tube (12) is provided with a capacity scale.

6. A concrete testing device according to claim 1, characterized in that: The inner diameter of the impermeability test cylinder (9) is adapted to the size of the circular standard concrete test block.

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