Concrete backfill compactness detection device

Abstract

The utility model provides a concrete backfill compactness detection device, and belongs to the technical field of concrete compactness detection. Comprising a rectangular plate, a compactness detection mechanism and a protection mechanism, a bottom plate is installed at the bottom end of the rectangular plate, the compactness detection mechanism comprises a positioning plate, the positioning plate is installed on one side face of the rectangular plate, a servo motor is installed on the upper surface of the positioning plate, and a lead screw is installed at the output end of the servo motor. The lead screw is in threaded connection with the threaded sleeve, the limiting plate is stably connected with the threaded sleeve, and the lead screw is sleeved with the limiting plate. The compactness detection mechanism is arranged on the rectangular plate, a worker can detect the compactness of the concrete without bending down, a screw rod is controlled to rotate through a servo motor, a compactness detector can be driven to move downwards until the compactness detector abuts against the concrete, the compactness of the concrete can be detected, time and labor are saved, and the working efficiency is improved. And the labor intensity of workers is reduced.

Description

Technical Field

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

[0002] In the construction industry, concrete is one of the most commonly used basic materials in construction projects. Its quality directly affects the quality and safety of the project. Among them, density is an indicator for judging the quality of concrete. After the building is placed into the reserved hole, concrete is backfilled into the hole. In order to ensure that the building is stably installed in the hole, the density of the backfilled concrete will be tested.

[0003] Currently, the method for testing the compactness of concrete backfill is to directly use an instrument. The instrument's testing end is used to press against the concrete surface, and the test results are displayed on a monitor. However, in practice, due to the small size of the instrument, operators have to bend over to use it. Furthermore, different points need to be collected during testing, which requires operators to bend over repeatedly, which is time-consuming, labor-intensive, and increases the workload of the operators. Therefore, a concrete backfill compactness testing device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a concrete backfill compaction testing device that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a concrete backfill compaction testing device, including a rectangular plate, and a base plate is installed at the bottom end of the rectangular plate;

[0007] The density testing mechanism includes:

[0008] A positioning plate is mounted on one side of a rectangular plate, and a servo motor is mounted on the upper surface of the positioning plate.

[0009] A lead screw, which is installed at the output end of a servo motor, and the lead screw is threadedly connected to a threaded sleeve.

[0010] A limiting plate is stably connected to a threaded sleeve and is sleeved on the outside of the lead screw;

[0011] A protective mechanism is provided at the bottom of the limiting plate.

[0012] In a preferred embodiment, the servo motor is fixedly mounted on the upper surface of the positioning plate, and the lead screw is fixedly mounted on the output end of the servo motor.

[0013] In a preferred embodiment, the protective mechanism includes a protective cover, a baffle, and a magnet. A round rod is fixedly installed on the upper surface of the base plate. The round rod passes through the interior of the limiting plate and is slidably connected to the limiting plate. A baffle is fixedly installed at the bottom of the outer surface of the round rod.

[0014] In a preferred embodiment, a protective cover is rotatably mounted at the bottom of the limiting plate, and a magnet is embedded on the inner side of the protective cover.

[0015] In a preferred embodiment, a fixing plate is fixedly installed on the outer surface of the rectangular plate, and a storage battery is fixedly installed on the upper surface of the fixing plate. The storage battery is electrically connected to a servo motor.

[0016] In a preferred embodiment, a control panel with an angle is mounted on the outer surface of the rectangular plate, and the control panel is electrically connected to the battery.

[0017] In a preferred embodiment, a push rod is fixedly mounted on the outer surface of the rectangular plate, and a roller is mounted on the bottom of the base plate for controlling the movement of the device.

[0018] In a preferred embodiment, a density detector is installed at the bottom of the limiting plate, and the density detector is electrically connected to the battery.

[0019] The present invention provides a concrete backfill compaction testing device, the beneficial effects of which include:

[0020] 1. By setting the compaction testing mechanism on a rectangular plate, workers can test the compaction of concrete without bending over. The servo motor controls the screw to rotate and moves the limit plate downward, which in turn moves the compaction tester downward until it presses against the concrete, increasing the pressure on the concrete and thus detecting the compaction. This saves time and effort and reduces the labor intensity of workers.

[0021] 2. A protective cover is installed by rotating it at the bottom of the limiting plate, and a baffle is installed on the outside of the round rod. The protective cover is rotated and placed on the baffle, thus removing the protection of the compaction tester. Conversely, when the limiting plate moves upward, the protective cover will rotate back, so that the two protective covers are put together to protect the compaction tester and prevent it from being damaged by bumps. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

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

[0024] Figure 2 This is a schematic diagram of the protective cover structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the control panel structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the threaded sleeve structure of this utility model.

[0027] In the diagram: 1. Rectangular plate; 2. Base plate; 3. Density testing mechanism; 31. Positioning plate; 311. Servo motor; 32. Lead screw; 321. Threaded sleeve; 33. Limiting plate; 4. Protective mechanism; 41. Protective cover; 42. Baffle; 43. Magnet; 5. Round rod; 6. Fixing plate; 7. Battery; 8. Control panel; 9. Push rod; 10. Rolling wheel; 11. Density tester. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example

[0030] Reference Figures 1-4This utility model provides a technical solution: a concrete backfill compaction testing device, including a rectangular plate 1, a compaction testing mechanism 3, and a protective mechanism 4. A base plate 2 is installed at the bottom of the rectangular plate 1. The compaction testing mechanism 3 includes a positioning plate 31, which is installed on one side of the rectangular plate 1. A servo motor 311 is installed on the upper surface of the positioning plate 31. A lead screw 32 is installed at the output end of the servo motor 311. The lead screw 32 is threadedly connected to a threaded sleeve 321. A limiting plate 33 is stably connected to the threaded sleeve 321 and is sleeved on the outside of the lead screw 32. The protective mechanism 4 is located at the bottom of the limiting plate 33.

[0031] By setting the density testing mechanism 3 on the rectangular plate 1, the workers can test the density of concrete without bending over. The servo motor 311 controls the screw 32 to rotate and drives the limit plate 33 to move downward, which can drive the density tester 11 to move downward until the density tester 11 is pressed against the concrete, increasing the squeezing pressure on the concrete, thus detecting the density of the concrete. This saves time and effort and reduces the labor intensity of the workers.

[0032] In a preferred embodiment, the servo motor 311 is fixedly mounted on the upper surface of the positioning plate 31, and the lead screw 32 is fixedly mounted on the output end of the servo motor 311. This device is equipped with a servo motor 311, and the lead screw 32 can rotate under the drive of the servo motor 311. The rotation of the lead screw 32 can cause the threaded sleeve 321 to control the limiting plate 33 to move downward, and drive the compaction tester 11 to move downward, so that the compaction tester 11 can squeeze the concrete and measure the compaction of the concrete. There is no need for manual bending to control the operation of the compaction tester 11, which is convenient to use and saves time and effort.

[0033] In a preferred embodiment, the protective mechanism 4 includes a protective cover 41, a baffle 42, and a magnet 43. A round rod 5 is fixedly installed on the upper surface of the base plate 2. The round rod 5 passes through the interior of the limiting plate 33 and is slidably connected to the limiting plate 33. The baffle 42 is fixedly installed at the bottom of the outer surface of the round rod 5. The protective cover 41 is rotatably installed at the bottom of the limiting plate 33. The magnet 43 is embedded on the inner side of the protective cover 41.

[0034] In actual use, when using this device, the protective cover 41 can be rotated first. The rotation of the lead screw 32 can drive the limiting plate 33 to move downward, so that the protective cover 41 falls on the baffle 42. As the limiting plate 33 continues to move downward, the protective cover 41 can continue to rotate, so that the density tester 11 can be used normally without being obstructed. After use, as the limiting plate 33 moves upward, until the protective cover 41 is separated from the baffle 42, the protective cover 41 can rotate downward under its own weight, so that the two protective covers 41 are put together to cover the density tester 11, thereby protecting the density tester 11 from damage caused by bumps.

[0035] Since this device is used outdoors, a fixing plate 6 is fixedly installed on the outer surface of the rectangular plate 1 for convenient power supply. A storage battery 7 is fixedly installed on the upper surface of the fixing plate 6. The storage battery 7 is electrically connected to the servo motor 311. A density detector 11 is installed at the bottom of the limiting plate 33. The density detector 11 is electrically connected to the storage battery 7. The storage battery 7 installed on the fixing plate 6 can provide power to various electrical appliances so that the electrical equipment can be used normally.

[0036] To facilitate the use of this device, a control panel 8 with an inclination is installed on the outer surface of the rectangular plate 1. The control panel 8 is electrically connected to the battery 7. A push rod 9 is fixedly installed on the outer surface of the rectangular plate 1, and a roller 10 is installed at the bottom of the base plate 2 to control the movement of this device.

[0037] Specifically, the working process or principle of a concrete backfill compaction testing device is as follows: Currently, the method for testing the compaction of concrete backfill is to directly use an instrument, which presses against the concrete surface through the instrument's testing end, and the test results are displayed on the monitor. However, in actual operation, due to the small size of the instrument, the operator has to bend over to use it. During the test, different points need to be collected, which requires the operator to bend over repeatedly, which is time-consuming, labor-intensive, and increases the operator's workload. Therefore, this device was designed to solve this problem.

[0038] This device mounts the density testing mechanism 3 on a rectangular plate 1. When testing the density of concrete, the rectangular plate 1 can be pushed to move the density tester 11 to the required position. The density tester 11 is then moved by the servo motor 311, enabling concrete density testing without the need for workers to bend over, saving time and effort and reducing the labor intensity of workers. Specifically, the device is pushed to the position to be tested. Since this device is used outdoors, a battery 7 is installed on the fixing plate 6 to provide power to various electrical components. When the device is moved to the concrete position, the servo motor 311 is turned on, driving the lead screw 32 to rotate. The rotation of the lead screw 32 controls the threaded sleeve 321 to move downward. Because the limiting plate 33 is limited by the round rod 5, the limiting plate 33 cannot rotate with the lead screw 32, thus causing the threaded sleeve 321 to drive the limiting plate 33 to move downward, and pushing the density tester 11 to gradually move downward.

[0039] Before using this device, the protective cover 41 can be rotated to unfold the two protective covers 41, and one end of the protective cover 41 can be placed on the baffle 42. As the limiting plate 33 moves downward, the protective cover 41 rotates continuously under the limitation of the baffle 42. At this time, the limiting plate 33 will continue to move downward, which will cause the protective cover 41 to rotate. As the limiting plate 33 continues to descend, the detection end of the compaction tester 11 can be pressed against the outer surface of the concrete. The compaction tester 11 continuously increases the pressure on the concrete, and the generated data will be displayed on the control panel 8. The control panel 8 has not only a display but also control buttons to move the automatic equipment to work.

[0040] Staff can observe the data on the monitor to detect the density of the concrete. To ensure the accuracy of the data, different points on the concrete need to be tested in actual operation. Simply push the rectangular plate 1 to move it to change the test position. Of course, before moving it, the density tester 11 needs to be moved upward to avoid damaging the density tester 11. When the equipment moves to another point, the density of the concrete at that point can be tested again in the same way. By observing the density of the concrete at different points, a relatively average value can be obtained.

[0041] After the concrete density test is completed, the servo motor 311 controls the lead screw 32 to reverse. When the lead screw 32 reverses, it can drive the limiting plate 33 to move upward, thereby lifting the density tester 11 upward and detaching it from the ground. As the limiting plate 33 continues to rise, the originally tilted protective cover 41 will gradually return to its initial position. After the protective cover 41 is detached from the baffle 42, it will rotate downward under its own weight, causing the two opposing protective covers 41 to stick together. Under the action of the magnet 43, the two protective covers 41 can be stuck together, thus protecting the density tester 11. When not in use, it can protect the density tester 11 from damage and meet the requirements of use.

Claims

1. A device for detecting the compactness of concrete backfill, characterized in that, It includes a rectangular plate (1), and a bottom plate (2) is installed at the bottom end of the rectangular plate (1); The compactness detection mechanism (3) comprises: A positioning plate (31) is installed on one side of the rectangular plate (1), and a servo motor (311) is installed on the upper surface of the positioning plate (31); A lead screw (32) is installed on the output end of the servo motor (311), and the lead screw (32) is threadedly connected with a threaded sleeve (321); A limiting plate (33) is stably connected with the threaded sleeve (321), and the limiting plate (33) is sleeved outside the lead screw (32); A protection mechanism (4) is arranged at the bottom of the limiting plate (33).

2. The concrete backfill density detection device of claim 1, wherein, The servo motor (311) is fixedly installed on the upper surface of the positioning plate (31), and the lead screw (32) is fixedly installed on the output end of the servo motor (311).

3. The concrete backfill density detection device of claim 2, wherein, The protection mechanism (4) comprises a protective cover (41), a baffle (42) and a magnet (43), the upper surface of the bottom plate (2) is fixedly installed with a circular rod (5), the circular rod (5) penetrates through the inside of the limiting plate (33) and is slidably connected with the limiting plate (33), and the baffle (42) is fixedly installed at the bottom end of the outer surface of the circular rod (5).

4. The concrete backfill density detection device of claim 3, wherein, The protective cover (41) is rotatably installed at the bottom of the limiting plate (33), and the magnet (43) is inlaid on the inner side of the protective cover (41).

5. The concrete backfill density detection device of claim 4, wherein, The fixed plate (6) is fixedly installed on the outer surface of the rectangular plate (1), the upper surface of the fixed plate (6) is fixedly installed with a storage battery (7), and the storage battery (7) is electrically connected with the servo motor (311).

6. The concrete backfill density detection device of claim 5, wherein, The control panel (8) with inclination is installed on the outer surface of the rectangular plate (1), and the control panel (8) is electrically connected with the storage battery (7).

7. The concrete backfill density detection device of claim 6, wherein, The push rod (9) is fixedly installed on the outer surface of the rectangular plate (1), and the rolling wheel (10) is installed at the bottom of the bottom plate (2), which is used for controlling the movement of the device.

8. The concrete backfill density detection device of claim 7, wherein, The compactness detector (11) is installed at the bottom of the limiting plate (33), and the compactness detector (11) is electrically connected with the storage battery (7).

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