Device for measuring setting time of hydraulic concrete mixture

Abstract

The utility model relates to the technical field of concrete mixture experimental equipment, and particularly discloses a hydraulic concrete mixture setting time measuring device which is characterized in that a constant-temperature water bath structure is arranged on a base; the bottom of the rotating cylinder is connected to the constant-temperature water bath structure, and the upper part of the rotating cylinder is connected to the connecting plate; the connecting table is connected to the connecting plate, the hydraulic push rod is vertically arranged on the connecting table, and the tail end of a telescopic rod of the hydraulic push rod is downwards connected to the probe; the pressure sensor is arranged on a telescopic rod of the hydraulic push rod; the measuring cylinder is arranged in the constant-temperature water bath structure; the hydraulic push rod pushes the measuring needle to extend into the measuring cylinder to measure the setting time of the concrete mixture; the cleaning cylinder is arranged in the constant-temperature water bath structure, and a plurality of cleaning brushes are arranged in the cleaning cylinder and used for cleaning the probes. The constant-temperature water bath structure is arranged to ensure that the device is in a constant-temperature state in the measuring process, and the measuring structure moves into the cleaning cylinder to be cleaned after measuring in the measuring cylinder and can continue measuring, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixture experimental equipment, in particular to a device for measuring the setting time of hydraulic concrete mixture. Background Art

[0002] The setting time of concrete mixture is divided into initial setting and final setting. The time from the time of adding water to the time when the cement paste begins to lose plasticity and fluidity decreases is called initial setting time. The time from the time of adding water to the time when the cement paste completely loses plasticity and begins to have a certain structural strength is called final setting time.

[0003] Before pouring hydraulic concrete, various performance parameters of the concrete mixture need to be tested. Among them, the concrete setting time is an important parameter in the various performance tests of concrete. The detection of concrete setting time requires the use of a concrete mixture setting time measuring device for detection.

[0004] The utility model with the existing authorization announcement number CN218298254U discloses a concrete setting time measuring device, including a base, on which a detection device is arranged, the detection device includes a display, a penetration needle and a pressure rod; a column is rotatably connected to the base, the axis direction of the column is arranged along the vertical direction, and the detection device is arranged on the column; a driving device for driving the column to rotate is arranged on the base; a plurality of test tubes are arranged on the base, and the plurality of test tubes are distributed on the base in a circle around the column.

[0005] The above technical scheme is adopted to avoid the situation where the rotation of the test tube affects the setting time of the concrete sample, and the accuracy of the detection result of the concrete setting time is effectively improved. When the detection device detects the concrete sample in the test tube, the detection device and the test tube are relatively stationary, which improves the accuracy of the detection of the setting time of the concrete sample and is convenient for the operator to take and place the test tube. However, the above technical scheme takes a long time to detect the setting time of the concrete mixture. During the detection process, the sample needs to be carried out in a constant temperature and humidity environment. At present, the detection equipment cannot achieve constant temperature and humidity, and can only be manually transported to a constant temperature and humidity place and moved out during detection, which is time-consuming and laborious. The detection cannot automatically measure and record data, and manual operation is required, resulting in a lot of time invested by personnel. During the detection process, the measuring needle needs to be cleaned each time. At present, there is no corresponding device with automatic cleaning function, so the setting time of the concrete mixture cannot be measured more conveniently. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a device for measuring the setting time of hydraulic concrete mixture, so as to solve the problems of unstable experimental environment and inconvenient cleaning of the measuring needle during the measuring process.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for measuring the setting time of hydraulic concrete mixture, comprising a base, a constant temperature water bath structure, a measuring cylinder, a cleaning cylinder and a measuring structure;

[0008] A constant temperature water bath structure is arranged on the base;

[0009] The measuring structure includes a rotating cylinder, a connecting plate, a connecting platform, a hydraulic push rod, a pressure sensor and a measuring needle; the rotating cylinder is vertically arranged, the bottom is connected to the constant temperature water bath structure, and the upper part is connected to the connecting plate; the connecting platform is connected to the connecting plate, the hydraulic push rod is vertically arranged on the connecting platform, and the end of the telescopic rod of the hydraulic push rod is downwardly connected to the measuring needle; the pressure sensor is arranged on the telescopic rod of the hydraulic push rod;

[0010] The measuring cylinder is set in a constant temperature water bath structure, and the hydraulic push rod pushes the measuring needle into the measuring cylinder to measure the setting time of the concrete mixture;

[0011] The cleaning cylinder is arranged in a constant temperature water bath structure, and a plurality of cleaning brushes are arranged in the cleaning cylinder. After the measuring needle has finished measuring in the measuring cylinder, the rotating cylinder rotates to drive the connecting plate, the connecting platform, the hydraulic push rod and the measuring needle to rotate to the top of the cleaning cylinder, and the hydraulic push rod pushes the measuring needle into the cleaning cylinder. The cleaning brush cleans the concrete mixture on the surface of the measuring needle before the next measurement is carried out.

[0012] As a further technical solution of the above scheme, the constant temperature water bath structure includes a water bath, a heating rod and a placement rack; the water bath is arranged on the base, the heating rod is arranged at the bottom of the water bath, and the placement rack is arranged above the heating rod for placing the measuring cylinder and the cleaning cylinder.

[0013] As a further technical solution of the above solution, there are multiple measuring cylinders.

[0014] As a further technical solution of the above scheme, the measuring structure also includes a rotating handle and an oscilloscope; the rotating handle is arranged on the rotating cylinder to drive the rotating cylinder to rotate; the oscilloscope is arranged on the connecting plate to display and record the signal of the pressure sensor.

[0015] As a further technical solution of the above solution, a threaded connection tube is provided at the end of the telescopic rod of the hydraulic push rod, and the measuring needle is connected to the threaded connection tube through a connecting sleeve.

[0016] As a further technical solution of the above solution, a support rod is provided at the bottom of the base, and a support plate is provided at the bottom of the support rod.

[0017] As a further technical solution of the above solution, it also includes a temperature and humidity sensor, which is arranged in the water bath.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model ensures a constant temperature state during the measurement process by arranging a constant temperature water bath structure, and the measurement structure is moved to the cleaning cylinder for cleaning after the measurement in the measurement cylinder is completed, and the measurement can be continued, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-section structure of the constant temperature water bath.

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the determined structure.

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the measuring needle.

[0023] The meanings of the numbers in the figure are: base-1; support rod-11; support plate-12; constant temperature water bath structure-2; water bath-21; heating rod-22; placement rack-23; measuring cylinder-3; cleaning cylinder-4; cleaning brush-41; measuring structure-5; rotating cylinder-51; connecting plate-52; connecting platform-53; hydraulic push rod-54; pressure sensor-55; measuring needle-56; rotating handle-57; oscilloscope-58; threaded connecting cylinder-59; connecting sleeve-510; temperature and humidity sensor-6. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0025] like Figure 1 to Figure 4 As shown, the utility model is a device for measuring the setting time of hydraulic concrete mixture, comprising a base 1, a constant temperature water bath structure 2, a measuring cylinder 3, a cleaning cylinder 4 and a measuring structure 5;

[0026] A constant temperature water bath structure 2 is arranged on the base 1;

[0027] The measuring structure 5 comprises a rotating cylinder 51, a connecting plate 52, a connecting platform 53, a hydraulic push rod 54, a pressure sensor 55 and a measuring needle 56; the rotating cylinder 51 is vertically arranged, the bottom is connected to the constant temperature water bath structure 2, and the top is connected to the connecting plate 52; the connecting platform 53 is connected to the connecting plate 52, the hydraulic push rod 54 is vertically arranged on the connecting platform 53, and the end of the telescopic rod of the hydraulic push rod 54 is downwardly connected to the measuring needle 56; the pressure sensor 55 is arranged on the telescopic rod of the hydraulic push rod 54;

[0028] The measuring cylinder 3 is arranged in the constant temperature water bath structure 2, and the hydraulic push rod 54 pushes the measuring needle 56 into the measuring cylinder 3 to measure the setting time of the concrete mixture;

[0029] The cleaning cylinder 4 is arranged in the constant temperature water bath structure 2, and a plurality of cleaning brushes 41 are arranged in the cleaning cylinder 4; after the measuring needle 56 has finished measuring in the measuring cylinder 3, the rotating cylinder 51 rotates to drive the connecting plate 52, the connecting platform 53, the hydraulic push rod 54 and the measuring needle 56 to rotate to the top of the cleaning cylinder 4, and the hydraulic push rod 54 pushes the measuring needle 56 into the cleaning cylinder, and the cleaning brush 41 cleans the concrete mixture on the surface of the measuring needle 56 before the next measurement is carried out.

[0030] In this embodiment, the constant temperature water bath structure 2 is first opened to keep the whole device in a constant temperature state. The base 1 is kept stable as an installation foundation. The operator places the mixed hydraulic concrete mixture in the measuring cylinder 3, rotates the rotating cylinder 51, moves the measuring needle 56 to the top of the measuring cylinder 3, and starts the hydraulic push rod 54. The telescopic rod of the hydraulic push rod 54 drives the measuring needle 56 to move downward into the measuring cylinder 3 and insert it into the hydraulic concrete mixture. The time and pressure are recorded by the measuring needle 56 and the pressure sensor 55, and then the setting time of the hydraulic concrete mixture is obtained; then the hydraulic push rod 54 is started to drive the measuring needle 56 to move upward and leave the measuring cylinder 3, rotate the rotating cylinder 51, drive the connecting plate 52, the connecting platform 53 and the measuring needle 56 to move to the top of the cleaning cylinder 4, and the telescopic rod of the hydraulic push rod 54 drives the measuring needle 56 downward to extend into the cleaning cylinder 4, and the cleaning brush 41 cleans the residue on the measuring needle 56 for the next measurement.

[0031] like Figure 2 As shown, as a preferred embodiment, the constant temperature water bath structure 2 includes a water bath 21, a heating rod 22 and a placement rack 23; the water bath 21 is arranged on the base 1, the heating rod 22 is arranged at the bottom of the water bath 21, and the placement rack 23 is arranged above the heating rod 22 for placing the measuring cylinder 3 and the cleaning cylinder 4. In this embodiment, the heating rod 22 is turned on for water bath heating, and the placement rack 23 is arranged to place the cleaning cylinder 4 and the measuring cylinder 3, which deepens the stability of the device.

[0032] like Figure 1 As shown, as a preferred embodiment, a plurality of measuring cylinders 3 are provided. In this embodiment, a plurality of measuring cylinders 3 are provided, and the data in the second measuring cylinder 3 can be directly measured after the measuring needle 56 is cleaned, thereby improving efficiency.

[0033] like Figure 3As shown in the figure, as a preferred embodiment, the measuring structure 5 further includes a rotating handle 57 and an oscilloscope 58; the rotating handle 57 is arranged on the rotating cylinder 51 to drive the rotating cylinder 51 to rotate; the oscilloscope 58 is arranged on the connecting plate 52 to display and record the signal of the pressure sensor 55. In this embodiment, the angle of the rotating cylinder 51 can be more easily adjusted by rotating the handle 57, and the electrical signal of the pressure sensor 55 can be directly observed through the oscilloscope 58.

[0034] like Figure 3 and Figure 4 As shown, as a preferred embodiment, the end of the telescopic rod of the hydraulic push rod 54 is provided with a threaded connection tube 59, and the measuring needle 56 is connected to the threaded connection tube 59 through a connecting sleeve 510. In this embodiment, the hydraulic push rod 54 and the measuring needle 56 are connected through the threaded connection tube 59 and the connecting sleeve 510, which is convenient for disassembly, cleaning or replacement of the measuring needle 56.

[0035] like Figure 1 As shown, as a preferred embodiment, a support rod 11 is provided at the bottom of the base 1, and a support plate 12 is provided at the bottom of the support rod 11. The support rod 11 and the support plate 12 are provided on the base 1 to improve the stability of the device.

[0036] like Figure 1 and Figure 2 As shown, as a preferred embodiment, it also includes a temperature and humidity sensor 6, which is arranged in the water bath 21. In this embodiment, the temperature in the water bath 21 is monitored and controlled by the temperature and humidity sensor 6 to ensure that it is in a constant temperature state during the entire measurement process, thereby ensuring the accuracy of the experiment.

[0037] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0038] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A device for measuring the setting time of hydraulic concrete mixture, characterized in that: It comprises a base (1), a constant temperature water bath structure (2), a measuring cylinder (3), a cleaning cylinder (4) and a measuring structure (5); A constant temperature water bath structure (2) is arranged on the base (1); The measuring structure (5) comprises a rotating cylinder (51), a connecting plate (52), a connecting platform (53), a hydraulic push rod (54), a pressure sensor (55) and a measuring needle (56); the rotating cylinder (51) is arranged vertically, with the bottom connected to the constant temperature water bath structure (2) and the top connected to the connecting plate (52); the connecting platform (53) is connected to the connecting plate (52), the hydraulic push rod (54) is arranged vertically on the connecting platform (53), and the end of the telescopic rod of the hydraulic push rod (54) is downwardly connected to the measuring needle (56); the pressure sensor (55) is arranged on the telescopic rod of the hydraulic push rod (54); The measuring cylinder (3) is arranged in the constant temperature water bath structure (2), and the hydraulic push rod (54) pushes the measuring needle (56) into the measuring cylinder (3) to measure the setting time of the concrete mixture; A cleaning cylinder (4) is arranged in the constant temperature water bath structure (2), and a plurality of cleaning brushes (41) are arranged in the cleaning cylinder (4); after the measuring needle (56) has completed the measurement in the measuring cylinder (3), the rotating cylinder (51) rotates to drive the connecting plate (52), the connecting platform (53), the hydraulic push rod (54) and the measuring needle (56) to rotate above the cleaning cylinder (4), the hydraulic push rod (54) pushes the measuring needle (56) into the cleaning cylinder, and the cleaning brush (41) cleans the concrete mixture on the surface of the measuring needle (56) before the next measurement is carried out.

2. A device for measuring the setting time of a hydraulic concrete mixture according to claim 1, characterized in that: The constant temperature water bath structure (2) comprises a water bath (21), a heating rod (22) and a placement rack (23); the water bath (21) is arranged on the base (1), the heating rod (22) is arranged at the bottom of the water bath (21), and the placement rack (23) is arranged above the heating rod (22) and is used to place the measuring cylinder (3) and the cleaning cylinder (4).

3. A device for measuring the setting time of a hydraulic concrete mixture as claimed in claim 1, characterized in that: The measuring cylinder (3) is provided in plurality.

4. A device for measuring the setting time of hydraulic concrete mixture according to claim 1, characterized in that: The measuring structure (5) further comprises a rotating handle (57) and an oscilloscope (58); the rotating handle (57) is arranged on the rotating cylinder (51) to drive the rotating cylinder (51) to rotate; the oscilloscope (58) is arranged on the connecting plate (52) to display and record the signal of the pressure sensor (55).

5. A device for measuring the setting time of a hydraulic concrete mixture as claimed in claim 1, characterized in that: A threaded connection tube (59) is provided at the end of the telescopic rod of the hydraulic push rod (54), and the measuring needle (56) is connected to the threaded connection tube (59) via a connecting sleeve (510).

6. A device for measuring the setting time of hydraulic concrete mixture according to claim 1, characterized in that: A support rod (11) is provided at the bottom of the base (1), and a support plate (12) is provided at the bottom of the support rod (11).

7. A device for measuring the setting time of hydraulic concrete mixture according to claim 2, characterized in that: It also includes a temperature and humidity sensor (6), wherein the temperature and humidity sensor (6) is arranged in the water bath (21).

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