A detection device for a concrete mixer

Abstract

The utility model relates to a detection device of concrete mixer belongs to concrete mixer detection technical field, including concrete mixing jar, the one side of concrete mixing jar is provided with the slump detection mechanism that can detect the concrete that comes out of the unloading, the slump detection mechanism includes the unloading pipeline fixedly connected in one side of concrete mixing jar. This detection device of concrete mixer, through setting up the unloading pipeline, convenient the concrete in the concrete mixing jar is discharged and is handled, then through setting up the fixing base and laser scanner, can in the process of concrete discharge to its flowability carry out scanning processing, and then convenient collection concrete slump data, thereby can carry out the detection to its slump, when concrete slump is eligible, then can continue to discharge, when concrete slump is unqualified, then the staff can close the discharge, thereby continue to mix and stir the concrete.

Description

Technical Field

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

[0002] Concrete mixers are core equipment in construction projects, used to mix raw materials such as cement, sand, and water to prepare concrete. Their performance directly affects the uniformity, strength, and construction efficiency of the concrete. The selection of a concrete mixer requires comprehensive consideration of the project scale, concrete performance requirements, and equipment economics. Maintenance and upkeep directly impact its service life and construction safety. With the advancement of green building and intelligent construction, highly efficient, energy-saving, and automated models will become mainstream.

[0003] A detection device is needed during the use of a concrete mixer. Chinese utility model patent CN215573807U discloses a detection device for a mixer, including a mounting base. A water storage tank is mounted on the upper surface of the mounting base. A mounting rod is fixed to the upper end of the water storage tank. A liquid level sensor is installed at the front end of the mounting rod. The mixer body is located at the lower end of the liquid level sensor. A protective shell is installed on the upper surface of the water storage tank, near the mounting rod. A liquid pump is installed inside the protective shell. A water pumping pipe is connected to the lower end of the liquid pump. A connecting pipe is connected to the output end of the liquid pump. A spray nozzle is connected to the front end of the connecting pipe, near the liquid level sensor. A PLC controller is installed inside the protective shell, near the liquid pump, and the PLC controller is electrically connected to the liquid pump. This utility model features a liquid level sensor that can be detached from the mounting rod for easy disassembly. The water storage tank allows for water storage and convenient water addition.

[0004] However, this utility model does not include a structure for slump testing of concrete during use. Therefore, after the concrete is mixed and stirred, the quality of the concrete cannot be directly tested, which affects the testing effect and cannot meet production needs. Therefore, a testing device for a concrete mixer is proposed to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a testing device for concrete mixers, which has the advantage of facilitating the detection of concrete slump. This solves the problem that existing testing devices do not have a structure for detecting the slump of concrete, making it impossible for workers to directly test the quality of the concrete after mixing, thus affecting the testing results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a testing device for a concrete mixer, comprising a concrete mixing tank, wherein a slump testing mechanism capable of testing the discharged concrete is provided on one side of the concrete mixing tank.

[0007] The slump testing mechanism includes a discharge pipe fixedly connected to one side of a concrete mixing tank. A mounting base is fixedly connected to one side of the concrete mixing tank. A support frame is fixedly connected to the side of the mounting base near the discharge pipe. A fixed seat extending to the bottom of the support frame is fixedly connected to the top of the support frame. A laser scanner is fixedly connected to the side of the fixed seat near the discharge pipe.

[0008] Furthermore, the camera on the laser scanner is located directly above the feeding pipe, and a valve is fixedly connected to the outside of the feeding pipe.

[0009] Furthermore, a mounting box is fixedly connected to the top of the support frame, a high-pressure blower is fixedly connected to the inner bottom wall of the mounting box, and an air supply pipe extending into the support frame is fixedly connected to the output end of the high-pressure blower, with the air supply pipe aligned with the lower surface of the laser scanner.

[0010] Furthermore, the gas supply pipe is aligned with the lower surface of the laser scanner, and the gas supply pipe is simultaneously fixedly connected to the mounting box and the support frame.

[0011] Furthermore, a sealing cover plate extending to the upper surface of the mounting box is fixedly connected inside the box, a filter bag is fixedly connected to the bottom of the sealing cover plate, and a dustproof net communicating with the interior of the mounting box is fixedly connected to the front of the mounting box.

[0012] Furthermore, the concrete mixing tank is externally fixedly connected to a mounting bracket extending to its top, a drive motor is fixedly connected to the top of the mounting bracket, a drive shaft extending into the interior of the concrete mixing tank is fixedly connected to the output shaft of the drive motor, and a mixing blade located inside the concrete mixing tank is fixedly connected to the outside of the drive shaft.

[0013] Furthermore, the top of the concrete mixing tank is fixedly connected to a feeding hopper that communicates with its interior, and there are two feeding hoppers. A slump cylinder is provided on one side of the concrete mixing tank.

[0014] Furthermore, four support legs are fixedly connected to the outer surface of the concrete mixing tank, extending to its bottom. The side of each of the four support legs away from the concrete mixing tank is fixedly connected to the ground.

[0015] Compared with the prior art, this utility model provides a testing device for concrete mixers, which has the following beneficial effects:

[0016] 1. The detection device of this concrete mixer, by setting up a discharge pipe, facilitates the discharge of concrete from the concrete mixing tank. By setting up a fixed base and a laser scanner, it can scan the flowability of the concrete during the discharge process, thereby facilitating the collection of slump data. This allows for slump detection. When the concrete slump is within acceptable limits, discharge can continue. When the concrete slump is not within acceptable limits, the operator can shut off the discharge and continue mixing the concrete.

[0017] 2. The testing device for this concrete mixer, by incorporating a high-pressure blower and air supply pipeline, can spray high-pressure air onto the surface of the laser scanner, thereby cleaning the surface and preventing dust from adhering to it. Simultaneously, by using a dustproof net and filter bags, external dust is prevented from entering the high-pressure blower, effectively cleaning the laser scanner. This solves the problem in existing testing devices that lack a structure for slump testing of concrete, which prevents direct quality testing of the concrete after mixing, thus affecting the testing results. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural view of the support frame of this utility model;

[0020] Figure 3 This is a three-dimensional sectional view of the mounting box of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the stirring blade of this utility model.

[0022] In the diagram: 1. Concrete mixing tank; 2. Feeding pipe; 3. Mounting base; 4. Support frame; 5. Fixing base; 6. Laser scanner; 7. Mounting box; 8. High-pressure blower; 9. Air supply pipe; 10. Sealing cover; 11. Filter bag; 12. Dustproof net; 13. Mounting frame; 14. Drive motor; 15. Drive shaft; 16. Mixing blades; 17. Feed hopper; 18. Support leg; 19. Slump cone. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 2 This embodiment of a concrete mixer testing device includes a concrete mixing tank 1. A slump testing mechanism capable of testing the discharged concrete is provided on one side of the concrete mixing tank 1. The slump testing mechanism includes a discharge pipe 2 fixedly connected to one side of the concrete mixing tank 1. A mounting base 3 is fixedly connected to one side of the concrete mixing tank 1. A support frame 4 is fixedly connected to the side of the mounting base 3 near the discharge pipe 2. A fixing seat 5 extending to the bottom of the support frame 4 is fixedly connected to the top of the support frame 4. A laser scanner 6 is fixedly connected to the side of the fixing seat 5 near the discharge pipe 2.

[0025] Specifically, the camera on the laser scanner 6 is located directly above the feeding pipe 2, and a valve is fixedly connected to the outside of the feeding pipe 2.

[0026] It should be noted that the camera of the laser scanner 6 captures the expansion pattern of the slumped concrete, analyzes the edge contour through AI algorithms, calculates the slump value, and displays the test results in real time on the equipment screen or integrates them into the batching plant control system. The system automatically stores the data and generates a test report (including time, slump value, batch number, etc.). If the slump is too high (excessive fluidity), the system may prompt "too much water added" or "insufficient sand ratio," requiring adjustment of the mix proportions (such as increasing cementitious materials or reducing water usage). If the slump is too low (insufficient fluidity), it will prompt "aggregate gradation needs adjustment" or "admixture dosage needs increase," and the batching plant can automatically add appropriate materials and remix.

[0027] Please see Figures 1 to 3 In this embodiment, a mounting box 7 is fixedly connected to the top of the support frame 4, a high-pressure blower 8 is fixedly connected to the inner bottom wall of the mounting box 7, and an air supply pipe 9 extending into the support frame 4 is fixedly connected to the output end of the high-pressure blower 8. The air supply pipe 9 is aligned with the lower surface of the laser scanner 6.

[0028] Specifically, the gas supply pipe 9 is aligned with the lower surface of the laser scanner 6. The gas supply pipe 9 is also fixedly connected to the mounting box 7 and the support frame 4. The interior of the mounting box 7 is fixedly connected to a sealing cover plate 10 extending to its upper surface. The bottom of the sealing cover plate 10 is fixedly connected to a filter bag 11. The front of the mounting box 7 is fixedly connected to a dustproof net 12 that communicates with its interior.

[0029] It should be noted that by setting up a high-pressure blower 8 and an air supply pipe 9, air can be sprayed onto the surface of the laser scanner 6 in the form of high pressure, thereby cleaning the surface and preventing dust from adhering to the surface of the laser scanner 6. At the same time, by setting up a dustproof net 12 and a filter bag 11, external dust can be prevented from entering the interior of the high-pressure blower 8.

[0030] It should be noted that the sealing cover 10 and the installation box 7 are detachably connected, which makes it convenient for staff to clean the dust on the filter bag 11. At the same time, staff need to clean the surface of the dustproof net 12 regularly to ensure normal airflow.

[0031] Please see Figure 1 and Figure 4 In this embodiment, a mounting bracket 13 extending to the top of the concrete mixing tank 1 is fixedly connected to the outside of the concrete mixing tank 1. A drive motor 14 is fixedly connected to the top of the mounting bracket 13. A drive shaft 15 extending into the interior of the concrete mixing tank 1 is fixedly connected to the output shaft of the drive motor 14. A mixing blade 16 located inside the concrete mixing tank 1 is fixedly connected to the outside of the drive shaft 15. A slump cylinder 19 is provided on one side of the concrete mixing tank 1.

[0032] Specifically, the top of the concrete mixing tank 1 is fixedly connected to a feed hopper 17 that communicates with its interior. There are two feed hoppers 17. The outer surface of the concrete mixing tank 1 is fixedly connected to a support leg 18 that extends to its bottom. There are four support legs 18. The side of the four support legs 18 away from the concrete mixing tank 1 is fixedly connected to the ground.

[0033] It should be noted that the staff needs to measure the height of the slump cylinder 19 in advance, and use a laser scanner 6 (such as a triangulation type or TOF lidar) to collect three-dimensional point cloud data of the concrete surface after the collapse. Combined with the software algorithm, the slump height is automatically calculated to replace manual measurement and reduce human error. Standard manual operation is still required (filling in three layers, tamping each layer 25 times) to ensure that the concrete density is consistent and to avoid the slump shape being affected by differences in filling. After the slump cylinder 19 is lifted, the laser scanner 6 is started to collect the slump data of the concrete. The scanning must be completed before the concrete stops flowing (within about 10 seconds).

[0034] The working principle of the above embodiments is as follows:

[0035] First, the workers pour the raw materials needed to make concrete into the concrete mixing tank 1 through the feed hopper 17 according to the proportion. Then, the drive motor 14 is started to fully mix the concrete raw materials. When the concrete is mixed to a certain extent, the valve is opened to discharge the concrete through the discharge pipe 2. At this time, the concrete will fall directly into the slump cylinder 19. When the concrete in the slump cylinder 19 is full, the discharge is stopped. The workers remove the slump cylinder 19 and then judge the slump of the concrete. At the same time, the laser scanner 6 is started to collect the slump data of the concrete. Then, the slump of the concrete is detected to determine whether it is qualified. Through the dual detection of the laser scanner 6 and manual inspection, a more accurate slump condition is obtained. Before using the laser scanner 6, the high-pressure blower 8 can be started to blow clean the surface of the laser scanner 6.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0037] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for a concrete mixer comprising a concrete mixing tank (1), characterized in that: The concrete mixing tank (1) is equipped with a slump detection mechanism on one side, which can detect the concrete that is discharged. The slump testing mechanism includes a discharge pipe (2) fixedly connected to one side of a concrete mixing tank (1), a mounting base (3) fixedly connected to one side of the concrete mixing tank (1), a support frame (4) fixedly connected to the side of the mounting base (3) near the discharge pipe (2), a fixed seat (5) extending to the bottom of the support frame (4) fixedly connected to the top of the support frame (4), and a laser scanner (6) fixedly connected to the side of the fixed seat (5) near the discharge pipe (2).

2. The testing device for a concrete mixer according to claim 1, characterized in that: The camera on the laser scanner (6) is located directly above the feeding pipe (2), and a valve is fixedly connected to the outside of the feeding pipe (2).

3. The testing device for a concrete mixer according to claim 1, characterized in that: The top of the support frame (4) is fixedly connected to the mounting box (7), and the bottom wall of the mounting box (7) is fixedly connected to the high pressure blower (8). The output end of the high pressure blower (8) is fixedly connected to the air supply pipe (9) extending into the support frame (4), and the air supply pipe (9) is aligned with the lower surface of the laser scanner (6).

4. The testing device for a concrete mixer according to claim 3, characterized in that: The gas supply pipe (9) is aligned with the lower surface of the laser scanner (6), and the gas supply pipe (9) is simultaneously fixedly connected to the mounting box (7) and the support frame (4).

5. The testing device for a concrete mixer according to claim 3, characterized in that: The installation box (7) is fixedly connected to a sealing cover plate (10) extending to its upper surface. A filter bag (11) is fixedly connected to the bottom of the sealing cover plate (10). A dustproof net (12) communicating with the interior is fixedly connected to the front of the installation box (7).

6. The testing device for a concrete mixer according to claim 1, characterized in that: The concrete mixing tank (1) is externally fixedly connected to a mounting bracket (13) extending to its top. A drive motor (14) is fixedly connected to the top of the mounting bracket (13). A drive shaft (15) extending into the concrete mixing tank (1) is fixedly connected to the output shaft of the drive motor (14). A mixing blade (16) located inside the concrete mixing tank (1) is fixedly connected to the outside of the drive shaft (15).

7. The testing device for a concrete mixer according to claim 1, characterized in that: The top of the concrete mixing tank (1) is fixedly connected to a feed hopper (17) that communicates with its interior. There are two feed hoppers (17). A slump cylinder (19) is provided on one side of the concrete mixing tank (1).

8. The testing device for a concrete mixer according to claim 1, characterized in that: The concrete mixing tank (1) has four support legs (18) that extend to its bottom, which are fixedly connected to the outer surface of the concrete mixing tank (1). The side of each of the four support legs (18) away from the concrete mixing tank (1) is fixedly connected to the ground.

Images