Automatic continuous detection device for workability of self-compacting concrete
The modular design and automated control of the self-compacting concrete workability testing device solves the problems of insufficient applicability and flexibility of existing devices, realizes fully automated testing, and improves testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN XIMU JIANXIN TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-05
Smart Images
Figure CN224328133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete workability technology, specifically to an automatic continuous testing device for the workability of self-compacting concrete. Background Technology
[0002] Self-compacting concrete (SCC) possesses excellent workability, eliminates the need for vibration, simplifies the process, and facilitates construction, making it a promising new type of concrete. The workability of SCC determines the uniformity and density of the concrete structure after casting, significantly impacting the construction quality and service life of the engineering structure. Therefore, workability testing of SCC is a crucial step in ensuring the quality of SCC structures.
[0003] The workability of self-compacting concrete includes fluidity (plasticity), viscosity, uniformity, and gap permeability. National, industry, local, and group standards all contain specific regulations and methods for testing and evaluating the workability of concrete mixtures. To ensure the workability of self-compacting concrete, high-frequency testing is required. However, existing technical standards for testing self-compacting concrete suffer from drawbacks such as high workload, long time lag, and inability to promptly reflect changes in concrete workability, hindering the rapid adjustment of the self-compacting concrete state by the mixing plant. Therefore, continuous testing of self-compacting concrete workability can reflect changes in workability during construction in real time, significantly improving the quality of self-compacting concrete projects and representing a crucial measure for addressing quality control issues related to self-compacting concrete.
[0004] In the prior art, Tsinghua University has applied for an invention patent entitled "A Test Method for the Comprehensive Workability of Freshly Mixed Concrete," application number 2025101248534, filed in January 2025. This patent discloses a test method for the comprehensive workability of freshly mixed concrete. It uses a multi-channel interconnected testing container to simultaneously measure the concrete liquid level height, mass, and unloading flow rate curve. Combined with multi-dimensional data, it automatically calculates indicators such as fluidity, viscosity, uniformity, and apparent density, enabling the acquisition of multiple complementary performance parameters in a single test, overcoming the limitations of traditional single-index testing.
[0005] Meanwhile, Tsinghua University and Sichuan Ximu Jianxin Technology Co., Ltd. have applied for an invention patent entitled "An Online Monitoring System and Method for Comprehensive Workability of Concrete," application number 2025101248619, with an application date of January 2025. This patent discloses an online monitoring system for comprehensive workability of concrete. By deploying diversion devices, multi-channel detection containers, and sensing units along the transport line, it collects real-time data on concrete quality and liquid level. Combined with intelligent terminal analysis of indicators such as fluidity and viscosity, it simultaneously issues alarms. Simultaneously, it remotely transmits monitoring results through a cloud platform, enabling in-situ rapid evaluation and anomaly feedback of concrete performance during construction.
[0006] However, existing automated testing devices for the workability of self-compacting concrete still have the following problems:
[0007] (1) Low applicability and limited application scenarios: To meet the requirements of continuous automatic online detection, specific pouring methods need to be matched. For example, in the scenario of tank truck transportation combined with ground pump pumping, the lack of fixed installation location makes it impossible to deploy the equipment.
[0008] (2) Insufficient mobility and difficult maintenance: When using a boom pump or multiple pumps for pouring, an additional fixed platform needs to be built and it is difficult to adjust the position according to the construction progress.
[0009] (3) Complex structure, numerous parts, and serious non-standardization: Key components such as diversion and overflow need to be customized according to the on-site dimensions, making it difficult to achieve modular mass production and rapid replacement;
[0010] (4) Low integration of intelligence and automation: After the concrete is tested, it cannot automatically return to the concrete transport line. Specific chutes need to be built for the concrete transport, and there are height difference requirements.
[0011] Therefore, in response to the above problems, this application proposes an automatic continuous testing device for the workability of self-compacting concrete, which focuses on solving the problems of structural simplification, flexible installation, and applicability of automated testing devices for concrete workability during the concrete pouring process. Utility Model Content
[0012] Based on the above, this application discloses an automatic continuous testing device for the workability of self-compacting concrete, which solves the above-mentioned technical problems. The device includes a concrete horizontal and vertical transportation unit 1, a concrete diversion unit 2, a testing unit 3, a data transceiver and automatic control terminal 4, and a frame unit 5.
[0013] The concrete horizontal and vertical transport unit 1 is located below and to the side of the discharge port of the detection unit 3, and is used to lift the detected concrete and flow it back to the original pouring line.
[0014] The concrete diversion unit 2 is located on one side of the inlet of the ground pump or the overhead pump, and a detection unit 3 is set below it to guide part of the concrete into the detection unit 3 for performance testing, while the remaining concrete continues to enter the pouring line along the diversion unit.
[0015] The detection unit 3 is used to collect data on the self-compacting concrete and test its workability; the data transceiver and automatic control terminal 4 is fixed on the frame unit 5 to control the transportation and loading / unloading of materials, acquire sensor data, and estimate the workability indicators of the concrete.
[0016] The frame unit 5 is used to support and protect each unit and structure, facilitating overall hoisting and movement on site;
[0017] Each unit is fixedly connected through frame unit 5. The concrete horizontal and vertical transportation unit 1, concrete diversion unit 2, and detection unit 3 form a concrete self-circulation detection path through mechanical structure and material channel. The data transceiver and automatic control terminal 4 is connected to the gate, sensor and transportation structure of each unit through cable to realize automatic control and data transmission.
[0018] Preferably, the concrete horizontal and vertical transport unit 1 includes a horizontal transport structure 11, a vertical transport structure 12, a collection hopper 13, and a suspended platform 14. The horizontal transport structure 11 and the vertical transport structure 12 are driven by a chain and a reducer. The collection hopper 13 is located below the discharge port of the detection unit 3 and is connected to the horizontal transport structure 11. The suspended platform 14 and the vertical transport structure 12 are located to the side of the detection unit 3. The collection hopper 13 enters the suspended platform 14 through the translation of the horizontal transport structure 11, and then the vertical transport structure 12 drives the suspended platform 14 to lift the collection hopper 13 to a specific height.
[0019] Preferably, the hopper 13 has an inclined plane with an angle of 30° to 80° to the horizontal plane on the pouring side. Its width is less than the width of the concrete diversion unit 2, and its volume is 1.1 to 1.5 times the volume of the testing container 31. Its horizontal moving distance is greater than half the sum of the length of the hopper 13 and the length of the testing unit 3, and its vertical moving distance is greater than the height of the top of the concrete diversion unit 2 from the ground. The concrete discharged after testing is lifted and poured into the concrete diversion unit 2, so that it flows back into the original pouring line.
[0020] Preferably, the concrete guiding unit 2 is located on one side of the inlet of the ground pump or overhead pump, and includes a guiding chute 21, a guiding baffle 22, an inlet 23, an automatic feeding gate 24, and a feeding channel 25. The back of the guiding chute 21 has a sandwich design, and the guiding baffle 22 is fixed to the inner wall of the guiding chute 21 by welding or bolting, forming a foldable or detachable structure. The inlet 23 is located in the lower middle part of the guiding chute 21, and the isolation screen at the inlet 23 is fixed to the inner side of the inlet 23 by clips or bolts. The bottom end of the guiding chute 21 is generally located above the inlet of the ground pump or overhead pump. The automatic feeding gate 24 is installed at the top of the feeding channel 25 by a flange or chute structure, and the feeding channel 25 is made of a relatively soft material and is fixed to the edge of the inlet by bonding or clamping, thereby guiding part of the concrete into the test container 31 below for performance testing, and the remaining concrete continues to enter the pouring line along the concrete guiding unit 2.
[0021] Preferably, the height of the guide baffle 22 is 0.2 to 0.5 times the width of the guide chute 21, and an elastic buffer layer is provided on the inner side. The elastic buffer layer can prevent concrete from splashing and reduce the noise generated by material impact.
[0022] Preferably, the detection unit 3 is located below the concrete diversion unit 2 and includes a detection container 31, a discharge port 32, an automatic discharge gate 33, a sensor group 34, a feed funnel 35, and a handle 36. The detection container 31 is composed of multiple channels connected at the bottom, and its top is connected to the feed channel 25 of the concrete diversion unit 2 through the feed funnel 35. The discharge port 32 is set at the bottom, and the automatic discharge gate 33 is installed at the discharge port 32 for control switching. The sensor group 34 is installed on the detection container 31 for real-time acquisition of concrete data in the detection container 31. The detection unit 3 is also provided with a handle 36 for convenient maintenance and installation.
[0023] Preferably, the automatic unloading gate 33 adopts a knife gate valve structure, which is controlled by pneumatic or electric drive. The gate size is larger than the unloading port 32 size. It is installed at the unloading port 32 at the bottom of the detection container 31 and is fixed to the detection container 31 by flange or bolts. This allows for control of concrete flow and rapid channel cleaning during the unloading process.
[0024] Preferably, the sensor group 34 includes a weight sensor, a laser sensor, and a limit sensor. The weight sensor is installed at the bottom of the detection container 31 to collect the mass of the concrete inside the detection container 31 in real time. The laser sensor is installed at the top of the detection container 31 to collect the liquid level of the concrete inside the detection container 31 in real time. The limit sensor is installed at the mechanical operating part of the detection container 31 to collect the mechanical operating status data of the detection container 31 in real time.
[0025] Preferably, the data transceiver and automatic control terminal 4 is fixed on the frame unit 5. Its outer shell is a stainless steel waterproof electrical box, which houses the control terminal equipment and provides heat dissipation. The data transceiver and automatic control terminal 4 is electrically connected to the automatic feeding gate 24, the automatic unloading gate 33, the horizontal transport structure 11, and the vertical transport structure 12 via cables to control the operation of these components. At the same time, it is communicatively connected to the sensor group 34 to acquire data on concrete quality, liquid level, and mechanical operating status. The data transceiver and automatic control terminal 4 integrates a data processing module, which can calculate the work performance indicators of concrete fluidity, viscosity, uniformity, and apparent density based on the data acquired by the sensor group 34, and upload the calculation results and the acquired raw data to the cloud platform. It can also receive control commands from the cloud platform to realize automated control and data management of the detection device.
[0026] Preferably, the frame unit 5 includes a supporting column 51, a limiting column, a baffle 53, a lifting ring 54, a base plate 55, and a telescopic pulley 56. The supporting column 51 and the limiting column are fixed to the base plate 55 by welding or bolts, and the screw holes on the columns are used to install each unit. The baffle 53 is bolted between the columns and is a detachable structure. The lifting ring 54 is welded to the left and right sides of the bottom and top of the guide chute 21. The telescopic pulley 56 is bolted to the bottom of the base plate 55. All components are connected by welding or bolts to form a whole, realizing the functions of supporting, protecting, and lifting and moving each unit.
[0027] Compared with the prior art, the technical solution of this application has the following technical effects:
[0028] This invention's device is compatible with various tank trucks and pumping equipment. By adapting its structural dimensions to on-site transportation and pouring equipment, it solves the problem of existing devices requiring specific pouring methods. In scenarios such as tank truck transportation combined with ground pumping, it can be deployed without a specific installation location. When using overhead pumps or multiple pumps for coordinated pouring, no additional fixed platform is needed. Its position can be flexibly adjusted according to the construction progress, effectively enhancing on-site applicability and achieving dynamic testing deployment. This allows the testing of the workability of self-compacting concrete to no longer be limited by the construction scenario.
[0029] The device of this invention features retractable pulleys at the bottom for easy overall movement, and its frame unit design facilitates on-site hoisting. Furthermore, the rational design of each unit structure allows for detachable components such as baffles and handles on sensor assemblies during maintenance, making repairs convenient and quick. Compared to existing devices that suffer from insufficient mobility and difficult maintenance, this device can automatically relocate according to site requirements, significantly improving the convenience of movement and maintenance, and providing greater convenience for testing work during construction.
[0030] The components of this invention, such as the horizontal and vertical concrete transport unit and the concrete diversion unit, are modularly mass-produced, avoiding the non-standardization problem of key components needing to be custom-made according to site dimensions in existing technologies. Standardized parts not only facilitate manufacturing but also make assembly and rapid replacement easier, reducing production costs and maintenance difficulties. This allows the device to be more widely used in different construction projects, improving its versatility and practicality.
[0031] This invention utilizes automatic horizontal and vertical transport devices, chute structures, and automatic gates to automatically return the tested concrete to its original pouring path, forming a self-circulating testing process that requires no manual intervention. The data transceiver and automatic control terminal can automatically control each gate and transport structure, acquire sensor data in real time, calculate performance indicators, and upload data to a cloud platform for archiving, analysis, and alarm push notifications. The fully automated operation significantly improves the intelligence and automation integration of the testing process, reduces manpower, and enhances testing efficiency and accuracy.
[0032] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.
[0033] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0035] Figure 1 This is a schematic diagram of an automatic continuous testing device for the workability of self-compacting concrete.
[0036] Figure 2 A side view of an automatic continuous testing device for the workability of self-compacting concrete.
[0037] Figure 3 Here is a flowchart of the automatic continuous detection process for the device;
[0038] Figure 4 A front view illustrating the dimensions of an automatic continuous testing device for the workability of self-compacting concrete;
[0039] Figure 5 A top view illustrating the dimensions of an automatic continuous testing device for the workability of self-compacting concrete.
[0040] Figure Labels
[0041] Concrete horizontal and vertical transport unit 1: horizontal transport structure 11, vertical transport structure 12, collection hopper 13, hanging basket 14; Concrete diversion unit 2: diversion chute 21, diversion baffle 22, feed inlet 23, automatic feed gate 24, feed channel 25; Detection unit 3: detection container 31, discharge port 32, automatic discharge gate 33, sensor group 34, feed funnel 35, handle 36; Data transceiver and automatic control terminal 4; Frame unit 5: support column 51, limit column 52, baffle 53, lifting ring 54, base plate 55, telescopic pulley 56. Detailed Implementation
[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of 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, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.
[0043] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.
[0044] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.
[0045] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.
[0046] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.
[0047] It should also 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.
[0048] Example 1
[0049] This embodiment mainly describes an automatic continuous testing device for the workability of self-compacting concrete, such as... Figure 1-2 As shown, the device includes a concrete horizontal and vertical transport unit 1, a concrete diversion unit 2, a detection unit 3, a data transceiver and automatic control terminal 4, and a frame unit 5.
[0050] The concrete horizontal and vertical transport unit 1 is located below and to the side of the discharge port of the detection unit 3, and is used to lift the detected concrete and flow it back to the original pouring line.
[0051] The concrete diversion unit 2 is located on one side of the inlet of the ground pump or the overhead pump, and a detection unit 3 is set below it to guide part of the concrete into the detection unit 3 for performance testing, while the remaining concrete continues to enter the pouring line along the diversion unit.
[0052] The detection unit 3 is used to collect data on the self-compacting concrete and test its workability; the data transceiver and automatic control terminal 4 is fixed on the frame unit 5 to control the transportation and loading / unloading of materials, acquire sensor data, and estimate the workability indicators of the concrete.
[0053] The frame unit 5 is used to support and protect each unit and structure, facilitating overall hoisting and movement on site;
[0054] Each unit is fixedly connected through frame unit 5. The concrete horizontal and vertical transportation unit 1, concrete diversion unit 2, and detection unit 3 form a concrete self-circulation detection path through mechanical structure and material channel. The data transceiver and automatic control terminal 4 is connected to the gate, sensor and transportation structure of each unit through cable to realize automatic control and data transmission.
[0055] Furthermore, the concrete horizontal and vertical transportation unit 1 includes a horizontal transportation structure 11, a vertical transportation structure 12, a collection hopper 13, and a suspended platform 14. The horizontal transportation structure 11 and the vertical transportation structure 12 are driven by a chain and a reducer. The collection hopper 13 is located below the discharge port of the detection unit 3 and is connected to the horizontal transportation structure 11. The suspended platform 14 and the vertical transportation structure 12 are located to the side of the detection unit 3. The collection hopper 13 enters the suspended platform 14 through the translation of the horizontal transportation structure 11, and then the vertical transportation structure 12 drives the suspended platform 14 to lift the collection hopper 13 to a specific height.
[0056] Furthermore, the hopper 13 has an inclined plane with an angle of 30° to 80° to the horizontal plane on the discharge side. Its width is less than the width of the concrete diversion unit 2, and its volume is 1.1 to 1.5 times the volume of the testing container 31. Its horizontal movement distance is greater than half the sum of the length of the hopper 13 and the length of the testing unit 3, and its vertical movement distance is greater than the height of the top of the concrete diversion unit 2 from the ground. The concrete discharged after testing is lifted and poured into the concrete diversion unit 2, so that it flows back into the original pouring line.
[0057] Furthermore, the concrete diversion unit 2 is located on one side of the inlet of the ground pump or overhead pump, including a diversion chute 21, a diversion baffle 22, an inlet 23, an automatic feed gate 24, and a feed channel 25. The back of the diversion chute 21 has a sandwich design, and the diversion baffle 22 is fixed to the inner wall of the diversion chute 21 by welding or bolting, forming a foldable or detachable structure. The inlet 23 is located in the lower middle part of the diversion chute 21, and the isolation screen at the inlet 23 is fixed to the inner side of the inlet 23 by clips or bolts. The bottom end of the diversion chute 21 is generally located above the inlet of the ground pump or overhead pump. The automatic feed gate 24 is installed at the top of the feed channel 25 by a flange or chute structure, and the feed channel 25 is made of a relatively soft material and is fixed to the edge of the inlet by bonding or clamping, thereby guiding part of the concrete into the test container 31 below for performance testing, while the remaining concrete continues to enter the pouring line along the concrete diversion unit 2.
[0058] The inner wall of the guide chute 21 is provided with an anti-stick coating, which can effectively reduce the adhesion of concrete during the guiding process and avoid concrete residue from affecting the detection accuracy and device operation. The feed channel 25 is made of a relatively soft material, which can play a certain buffering role when the concrete flows, ensuring that the concrete enters the detection unit smoothly and avoiding changes in concrete properties due to rigid collisions.
[0059] Furthermore, the height of the guide baffle 22 is 0.2 to 0.5 times the width of the guide chute 21, and an elastic buffer layer is provided on the inner side. The elastic buffer layer can prevent concrete from splashing and reduce the noise generated by material impact.
[0060] Furthermore, the detection unit 3 is located below the concrete diversion unit 2 and includes a detection container 31, a discharge port 32, an automatic discharge gate 33, a sensor group 34, a feed funnel 35, and a handle 36. The detection container 31 is composed of multiple channels connected at the bottom, and its top is connected to the feed channel 25 of the concrete diversion unit 2 through the feed funnel 35. The discharge port 32 is set at the bottom, and the automatic discharge gate 33 is installed at the discharge port 32 for control switching. The sensor group 34 is installed on the detection container 31 for real-time acquisition of concrete data in the detection container 31. The detection unit 3 is also equipped with a handle 36 for convenient maintenance and installation.
[0061] The interior of the testing container 31 consists of multiple bottom-connected channels that are radially distributed. The cross-sectional area of each channel gradually increases from the center to the edge of the container, which is beneficial for the uniform distribution of concrete within the testing container 31. A sealing rubber gasket is provided between the automatic unloading gate 33 and the unloading port 32. The hardness of the sealing rubber gasket is 50-60 on the Shore A scale, which can ensure the sealing during unloading, prevent concrete leakage, and allow the gate to open and close smoothly, thereby improving the working efficiency of the device.
[0062] Furthermore, the automatic unloading gate 33 adopts a knife gate valve structure and is controlled by pneumatic or electric drive. The gate size is larger than the unloading port 32 size. It is installed at the unloading port 32 at the bottom of the detection container 31 and is fixed to the detection container 31 by flange or bolts. It controls the concrete flow rate and quickly cleans the channel during the unloading process.
[0063] Furthermore, the sensor group 34 includes a weight sensor, a laser sensor, and a limit sensor. The weight sensor is installed at the bottom of the detection container 31 to collect the mass of the concrete inside the detection container 31 in real time. The laser sensor is installed at the top of the detection container 31 to collect the liquid level of the concrete inside the detection container 31 in real time. The limit sensor is installed at the mechanical operating parts of the detection container 31 to collect the mechanical operating status data of the detection container 31 in real time.
[0064] Furthermore, the data transceiver and automatic control terminal 4 is fixed on the frame unit 5. Its outer shell is a stainless steel waterproof electrical box, which houses the control terminal equipment and provides heat dissipation. The data transceiver and automatic control terminal 4 is electrically connected to the automatic feeding gate 24, the automatic unloading gate 33, the horizontal transport structure 11, and the vertical transport structure 12 via cables to control the operation of these components. At the same time, it is communicatively connected to the sensor group 34 to acquire data on concrete quality, liquid level, and mechanical operating status. The data transceiver and automatic control terminal 4 integrates a data processing module, which can calculate the work performance indicators of concrete fluidity, viscosity, uniformity, and apparent density based on the data acquired by the sensor group 34, and upload the calculation results and the acquired raw data to the cloud platform. It can also receive control commands from the cloud platform to realize automated control and data management of the detection device.
[0065] Furthermore, the frame unit 5 includes a supporting column 51, a limiting column, a baffle 53, a lifting ring 54, a base plate 55, and a telescopic pulley 56. The supporting column 51 and the limiting column are fixed to the base plate 55 by welding or bolts, and the screw holes on the column are used to install each unit. The baffle 53 is connected between the columns by bolts and is a detachable structure. The lifting ring 54 is welded to the left and right sides of the bottom and top of the guide chute 21. The telescopic pulley 56 is installed below the base plate 55 by bolts. All components are connected by welding or bolts to form a whole, realizing the functions of supporting, protecting, and lifting and moving each unit.
[0066] This embodiment describes in detail how the present application enables automatic return of tested concrete through automatic horizontal and vertical transport devices, chute structures, etc., making it compatible with various pouring equipment; the components are standardized, facilitating modular mass production and assembly; the device is flexible and easy to maintain; the data transmission and automatic control terminal automates the detection and data processing without human intervention, improving applicability, mobility, standardization, and intelligent automation, and can reflect changes in concrete workability in real time.
[0067] Based on Embodiment 1, this embodiment describes in detail the automatic continuous detection process of the device of this application, such as... Figure 3 As shown, specifically:
[0068] Step S1: Initialize the device. Before starting the device, the hopper is located directly below the automatic discharge gate, and the automatic feed gate and the automatic discharge gate are in the closed state. After initialization, wet the concrete path.
[0069] Step S2: Concrete flows to the concrete diversion unit. The automatic feeding gate opens, connecting the feeding channel and the diversion chute. Part of the concrete enters the testing container through the feeding channel and feeding funnel. The sensor group records the mass of the concrete to be tested entering the testing container and the liquid level of the concrete in each testing channel in real time, and transmits the data to the data acquisition and equipment control terminal. When the mass of concrete in the testing container exceeds the mass threshold, or the liquid level of concrete in the testing channel reaches the set height threshold, all gates in the gate group are closed, and the container is left to stand for a short period of time to allow the liquid level of concrete in each testing channel to stabilize. This is the initial state before unloading, and the liquid level of concrete in each testing channel and the mass of concrete in the testing container are recorded at this time. The testing container is unloaded through the automatic unloading gate, and the sensor group records the mass of the concrete to be tested in the testing container and the liquid level of concrete in each testing channel in real time during the unloading process.
[0070] Step S3: After all the concrete in the container to be tested has been unloaded, the data acquisition and equipment control terminal calculates the flowability index and apparent density of the concrete based on the data recorded by the sensor unit. Based on the measurement curve measured by the sensor unit during the unloading process, it calculates the work performance index, including the viscosity index and uniformity index of the concrete. The calculated work performance indexes, along with the measurement data collected by the sensor unit, are uploaded to the cloud platform as the test results. The cloud platform archives, analyzes, and pushes alarms on the data uploaded by the data acquisition and equipment control terminal, and the results are pushed to the user terminal in real time.
[0071] Step S4: After all the concrete in the container is discharged into the collection hopper, the reducer of the horizontal transport structure moves the collection hopper horizontally into the basket via a chain. After the collection hopper is in place, the reducer of the vertical transport structure drives the collection hopper and the basket vertically from bottom to top via a chain. The collection hopper and the basket tilt to pour all the concrete inside the collection hopper into the concrete diversion unit. The tested concrete flows into the ground pump or overhead pump through the diversion chute. After all the concrete inside the collection hopper is poured into the concrete diversion unit, the reducer of the vertical transport structure reverses and drives the collection hopper and the basket vertically from top to bottom via a chain. After the collection hopper is in place, the reducer of the horizontal transport structure reverses and drives the collection hopper to directly below the automatic unloading gate via a chain.
[0072] Step S5: If the on-site pouring is not yet completed, return to step S2 and continue with the next concrete test; if the on-site pouring is completed, clean the automatic continuous testing device and wait for the next start-up test.
[0073] like Figure 4-5As shown, the reducer used in the horizontal and vertical concrete transport structure moves the aggregate hopper via a chain. The horizontal transport distance, vertical transport distance, aggregate hopper volume, and aggregate hopper height are related to the geometric parameters of the on-site pouring machinery and testing units. The specific formula is as follows:
[0074]
[0075] Where L1 is the length of the hopper, W1 is the width of the hopper, and H... 11 It is the height of the hopper, H 12 V1 is the height of the horizontal transport structure above the ground, d is the volume of the hopper, and d is the height of the horizontal transport structure above the ground. 11 It is the horizontal movement distance of the hopper, d 12 W1 is the vertical moving distance of the hopper, W2 is the width of the guide chute, and H is the vertical moving distance of the hopper. 23 L3 is the height of the top of the guide chute from the ground, H3 is the length of the detection unit, V3 is the height of the detection unit, and H is the volume of the detection container. g It is the height of the bottom of the unloading chute from the ground during normal unloading of concrete mixer trucks or mixing plants;
[0076] The hopper should have an inclined surface on the discharge side for easy discharge, with the angle β between the inclined surface and the horizontal plane preferably between 30° and 80°. The width of the hopper should be less than the width of the guide chute for easy discharge. The height of the hopper should not be less than 100mm or more than 500mm, and should be less than the height of the empty space below the testing unit. The volume of the hopper should be 1.2 to 1.5 times the volume of the testing container to facilitate the collection of all the concrete being tested. The horizontal movement distance of the hopper should be greater than half the sum of the length of the hopper and the length of the testing unit to prevent the vertical movement of the hopper from interfering with the testing unit. The vertical movement distance of the hopper should be greater than the height of the top of the guide chute from the ground for easy discharge.
[0077] In the concrete horizontal and vertical transportation unit, if the aggregate hopper should have an inclined plane with an angle of 40° to the horizontal plane on the discharge side, the width of the guide chute should be 420mm, and the height of the horizontal transportation structure from the ground should be 100mm; the bottom end of the unloading chute of the tanker truck during normal unloading should be 1700mm from the ground; the length of the detection unit should be 506mm, the width 106mm, the height 1190mm, and the volume 33L; the height of the ground pump inlet should be 1400mm from the ground.
[0078] Based on structural relationships, the width of the hopper should be less than 420mm, typically 406mm; the height should be 100mm–410mm, typically 200mm; the volume should be 36.3L–40.5L, typically 36.7L; the horizontal movement distance of the hopper should be greater than 503mm, typically 640mm; and the vertical movement distance should be greater than 1892mm, typically 2700mm.
[0079] The width of the concrete guiding unit, the height of the inlet from the ground, the height of the bottom of the guiding chute from the ground, the height of the top of the guiding chute from the ground, and the cross-sectional area of the guiding chute are all related to the on-site pouring method, the size of the testing unit, and the inclination angle of the concrete guiding unit. The specific formulas are as follows:
[0080]
[0081] Where W1 is the width of the hopper, W2 is the width of the guide chute, and H... 21 H is the height of the feed inlet from the ground. 22 S is the height of the bottom of the guide chute from the ground. 11 It is the cross-sectional area of the guide chute, S 12 S3 is the feed channel size; S3 is the minimum cross-sectional area of the feed section of the detection container; W d Is it the width of the feed inlet of a ground pump or a top pump, H? d It refers to the height of the feed inlet of a ground pump or overhead pump from the ground; W g It refers to the width of the unloading chute for concrete mixer trucks or mixing plants, H. g The height of the bottom of the unloading chute from the ground during normal unloading of concrete mixer trucks or mixing plants, S g It is the cross-sectional area of the unloading chute of the concrete mixer truck or the mixing plant;
[0082] The inclination angle α of the concrete diversion unit should be 30°–80°; the width of the diversion chute should be greater than the width of the unloading chute of the concrete mixer truck or mixing plant to ensure that no matter how fast or how large the flow rate of the concrete mixer truck or mixing plant is unloading, all the concrete will flow into the concrete diversion unit; the width of the diversion chute should be less than the width and length of the inlet of the ground pump or overhead pump to facilitate the flow of all the concrete in the diversion chute into the inlet of the ground pump or overhead pump; the height of the inlet from the ground should be less than the height of the bottom end of the unloading chute from the ground during normal unloading of the concrete mixer truck or mixing plant to facilitate the unloading of the concrete mixer truck or mixing plant into the concrete diversion unit; the lower part of the diversion chute... The bottom of the chute should be higher than the ground level of the inlet of the ground pump or overhead pump to ensure that all the concrete in the chute flows into the inlet. The horizontal distance between the top of the chute and the inlet should be greater than the length of the testing unit. The cross-sectional area of the chute should be greater than the unloading chute of the concrete mixer truck or mixing plant to ensure that no matter how fast or how large the unloading speed or flow rate of the concrete mixer truck or mixing plant is, all the concrete will flow into the concrete chute. The cross-sectional area of the feed channel should be less than or equal to the minimum cross-sectional area of the feed section of the testing container to prevent overflow during feeding. The feed channel should preferably be made of a softer material to facilitate material collection and prevent concrete splashing.
[0083] The guide baffle is preferably a foldable and detachable baffle, which facilitates material feeding and reduces concrete overflow; the feed inlet should be equipped with an isolation screen to prevent unmixed concrete lumps from entering the discharge outlet, and the aperture of the isolation screen should be 3 to 10 times the maximum aggregate size of the concrete; the automatic feed gate should preferably be a knife gate valve, not a butterfly valve; the upper and lower open design facilitates cleaning and avoids blockage, and can be set as a pneumatic or electric gate;
[0084] In a concrete diversion unit, if the inclination angle of the concrete diversion unit is 40°, the height of the horizontal transport structure from the ground is 100mm; the width of the unloading chute of the concrete mixer truck is 400mm, the bottom of the unloading chute is 1700mm above the ground during normal unloading, and the cross-sectional area of the unloading chute is 62800mm². 2 The detection unit used is 506mm long and 1190mm high, and the minimum cross-sectional area of the feed section is 10000mm². 2 The length and width of the pump inlet are 800mm and 1000mm respectively, and the height from the ground is 1400mm.
[0085] Based on structural relationships, the width of the guide chute should be between 400mm and 800mm, typically 420mm; the height of the inlet from the ground should be between 1515mm and 1700mm, typically 1635mm; the height of the bottom of the guide chute from the ground should be greater than 1400mm, typically 1450mm; the height of the top of the guide chute from the ground should be greater than 1992mm, typically 2235mm; and the cross-sectional area of the guide chute should be greater than 62800mm². 2 It is generally 84000mm 2 The feed channel size should be less than or equal to 10000 mm. 2 Generally 10000mm 2 ;
[0086] Furthermore, in the optional embodiment, the main material of the hopper of the concrete horizontal and vertical transportation unit is austenitic 304 stainless steel. The inclined plane on the pouring side has an angle β of 50° with the horizontal plane. The length L1 of the hopper 13 is 524 mm, the width W1 is 406 mm, and the height H... 11 The diameter is 200mm, the volume V1 is 36.7L, and the horizontal moving distance d 11 The vertical movement distance d is 640mm. 12 The diameter is 2700mm; the horizontal and vertical transport structures use a 1380r / min geared electric integrated machine to drive the collection hopper and the basket;
[0087] Furthermore, in the optional embodiment, the main material of the guide chute of the concrete guide unit is austenitic 304 stainless steel and various welded parts. The inclination angle α is preferably 40°, the width W2 of the guide chute is 420mm, the guide baffle adopts a detachable welded part, and the height H of the inlet from the ground is... 21 The chute is 1635mm in diameter, with an opening size of 100*100mm square, and the bottom of the guide chute is H meters above the ground. 22 The height H of the top of the guide chute from the ground is 1450mm. 23 The cross-sectional area S of the guide chute is 2235mm. 11 84000mm 2 The automatic feeding valve uses a standard cylinder to push and pull a sliding groove to control the connection and cutoff of the feeding channel and the guide chute. The feeding channel uses a relatively soft rubber material with a cross-sectional area S. 12 10000mm 2 ;
[0088] Furthermore, in the optional embodiment, the detection container of the detection unit is mainly made of austenitic 304 stainless steel, and its interior is composed of multiple channels connected at the bottom; the discharge port is a square with a size of 100*100mm, and the automatic discharge valve is a knife gate valve with an opening size of 100*100mm; the sensor group includes 2 weight sensors, 3 laser sensors, and 2 limit sensors; the feed funnel is used for material collection and is also equipped with a handle;
[0089] Furthermore, in an optional embodiment, the housing of the data transceiver and automatic control terminal uses a 300*300*400mm stainless steel waterproof electrical box.
[0090] Furthermore, in the optional embodiment, the main material of the supporting columns of the frame unit is Q235A welded parts, the detection container is provided with limiting columns on both sides, a baffle is provided below the weight sensor, and lifting lugs are added to the left and right sides of the bottom end and top end of the guide chute; the telescopic pulleys under the bottom plate 55 are all-iron high-temperature resistant casters.
[0091] Furthermore, in the optional embodiment, the overall length L0 of the automatic continuous detection device is 1500mm, the overall width W0 is 920mm, and the overall height H0 is 2975mm.
[0092] This embodiment describes in detail how the device achieves automatic and continuous testing of the workability of self-compacting concrete through steps such as initialization, concrete diversion, detection and data processing, concrete recirculation, and cyclic testing. After testing, the concrete can automatically flow back to the original pouring line without manual intervention, thus improving testing efficiency. At the same time, this application collects and uploads data to the cloud platform in real time, which facilitates real-time monitoring and adjustment, ensuring the accuracy and timeliness of testing and guaranteeing the quality of self-compacting concrete projects.
[0093] The above are merely preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter changes made to these embodiments within the spirit and principles of the present utility model, without departing from the principles and spirit of the present utility model, through conventional substitutions or to achieve the same function, shall fall within the scope of protection of the present utility model.
Claims
1. An automatic continuous testing device for the workability of self-compacting concrete, characterized in that, The device includes a concrete horizontal and vertical transport unit (1), a concrete diversion unit (2), a detection unit (3), a data transceiver and automatic control terminal (4), and a frame unit (5). The concrete horizontal and vertical transport unit (1) is located below and to the side of the discharge port of the detection unit (3), and is used to lift the detected concrete and flow it back to the original pouring line. The concrete diversion unit (2) is located on one side of the inlet of the ground pump or the overhead pump, and a detection unit (3) is set below it to guide part of the concrete into the detection unit (3) for performance testing, while the remaining concrete continues to enter the pouring line along the diversion unit. The detection unit (3) is used to collect and test the workability of self-compacting concrete; the data transmission and automatic control terminal (4) is fixed on the frame unit (5) to control the transportation and loading and unloading of materials, acquire sensor data and estimate the workability indicators of concrete. The frame unit (5) is used to support and protect each unit and structure, facilitating overall hoisting and movement on site; Each unit is fixedly connected through the frame unit (5). The concrete horizontal and vertical transport unit (1), concrete diversion unit (2), and detection unit (3) form a concrete self-circulation detection path through mechanical structure and material channel. The data transmission and automatic control terminal (4) is connected to the gate, sensor and transport structure of each unit through cable to realize automatic control and data transmission.
2. The automatic continuous testing device for the workability of self-compacting concrete according to claim 1, characterized in that, The concrete horizontal and vertical transport unit (1) includes a horizontal transport structure (11), a vertical transport structure (12), a collection hopper (13), and a suspended platform (14). The horizontal transport structure (11) and the vertical transport structure (12) are driven by a chain and a reducer. The collection hopper (13) is located below the discharge port of the detection unit (3) and is connected to the horizontal transport structure (11). The suspended platform (14) and the vertical transport structure (12) are located to the side of the detection unit (3). The collection hopper (13) enters the suspended platform (14) through the translation of the horizontal transport structure (11), and then the vertical transport structure (12) drives the suspended platform (14) to lift the collection hopper (13) to a specific height.
3. The automatic continuous testing device for the workability of self-compacting concrete according to claim 2, characterized in that, The hopper (13) has an inclined plane with an angle of 30° to 80° with the horizontal plane on the pouring side. Its width is less than the width of the concrete diversion unit (2), and its volume is 1.1 to 1.5 times the volume of the testing container (31). Its horizontal movement distance is greater than half the sum of the length of the hopper (13) and the length of the testing unit (3). Its vertical movement distance is greater than the height of the top of the concrete diversion unit (2) from the ground. The concrete discharged after testing is lifted and poured into the concrete diversion unit (2) so that it flows back into the original pouring line.
4. The automatic continuous testing device for the workability of self-compacting concrete according to claim 2, characterized in that, The concrete diversion unit (2) is located on one side of the inlet of the ground pump or overhead pump, and includes a diversion chute (21), a diversion baffle (22), an inlet (23), an automatic feed gate (24), and a feed channel (25). The back of the diversion chute (21) is a sandwich design. The diversion baffle (22) is fixed to the inner wall of the diversion chute (21) by welding or bolting, forming a foldable or detachable structure. The inlet (23) is located in the lower middle part of the diversion chute (21), and the isolation screen at the inlet (23) is... The net is fixed to the inside of the feed inlet (23) by buckles or bolts; the bottom of the guide chute (21) is generally located above the feed inlet of the ground pump or the overhead pump; the automatic feed gate (24) is installed at the top of the feed channel (25) by flange or chute structure, and the feed channel (25) is made of a relatively soft material and is fixed to the edge of the feed inlet by bonding or clamping, thereby guiding part of the concrete into the test container (31) below for performance testing, and the remaining concrete continues to enter the pouring line along the concrete guide unit (2).
5. An automatic continuous testing device for the workability of self-compacting concrete according to claim 4, characterized in that, The height of the guide baffle (22) is 0.2 to 0.5 times the width of the guide chute (21), and an elastic buffer layer is provided on the inner side. The elastic buffer layer can prevent concrete from splashing and reduce the noise generated by material impact.
6. The automatic continuous testing device for the workability of self-compacting concrete according to claim 1, characterized in that, The detection unit (3) is located below the concrete diversion unit (2) and includes a detection container (31), a discharge port (32), an automatic discharge gate (33), a sensor group (34), a feed funnel (35), and a handle (36). The detection container (31) is composed of multiple channels connected at the bottom. Its top is connected to the feed channel (25) of the concrete diversion unit (2) through the feed funnel (35). The discharge port (32) is set at the bottom. The automatic discharge gate (33) is installed at the discharge port (32) for control. The sensor group (34) is installed on the detection container (31) for real-time acquisition of concrete data in the detection container (31). The detection unit (3) is also equipped with a handle (36) for easy maintenance and installation.
7. An automatic continuous testing device for the workability of self-compacting concrete according to claim 6, characterized in that, The automatic unloading gate (33) adopts a knife gate valve structure and is controlled by pneumatic or electric drive. The gate size is larger than the unloading port (32) size. It is installed at the unloading port (32) at the bottom of the detection container (31) and is fixed to the detection container (31) by flange or bolt. It controls the concrete flow rate and quickly cleans the channel during the unloading process.
8. An automatic continuous testing device for the workability of self-compacting concrete according to claim 6, characterized in that, The sensor group (34) includes a weight sensor, a laser sensor and a limit sensor. The weight sensor is installed at the bottom of the detection container (31) to collect the mass of the concrete in the detection container (31) in real time. The laser sensor is installed at the top of the detection container (31) to collect the liquid level of the concrete in the detection container (31) in real time. The limit sensor is installed at the mechanical running part of the detection container (31) to collect the mechanical running status data of the detection container (31) in real time.
9. An automatic continuous testing device for the workability of self-compacting concrete according to claim 1, characterized in that, The data transceiver and automatic control terminal (4) is fixed on the frame unit (5). Its outer shell is made of stainless steel waterproof electrical box, which houses the control terminal equipment and dissipates heat. The data transceiver and automatic control terminal (4) is electrically connected to the automatic feeding gate (24), the automatic unloading gate (33), the horizontal transport structure (11), and the vertical transport structure (12) via cables to control the operation of these components. At the same time, it is connected to the sensor group (34) to collect data to obtain concrete quality, liquid level and mechanical operation status data. The data transceiver and automatic control terminal (4) has an integrated data processing module, which can calculate the work performance indicators of concrete fluidity, viscosity, uniformity and apparent density based on the data collected by the sensor group (34), and upload the calculation results and the collected raw data to the cloud platform. It can also receive control commands from the cloud platform to realize the automated control and data management of the detection device.
10. An automatic continuous testing device for the workability of self-compacting concrete according to claim 7, characterized in that, The frame unit (5) includes a support column (51), a limiting column (52), a baffle (53), a lifting ring (54), a base plate (55), and a telescopic pulley (56). The support column (51) and the limiting column are fixed to the base plate (55) by welding or bolts. The screw holes on the column are used to install each unit. The baffle (53) is connected between the columns by bolts and is a detachable structure. The lifting ring (54) is welded to the bottom and top left and right sides of the guide chute (21). The telescopic pulley (56) is installed below the base plate (55) by bolts. All components are connected by welding or bolts to form a whole, realizing the functions of supporting, protecting, and lifting and moving each unit.