A multifunctional concrete fluidity detection and sample curing device

Abstract

The present invention relates to the field of civil engineering construction and discloses a multifunctional concrete fluidity detection and sample curing device, comprising: a concrete fluidity detection box, a funnel, a connecting rod and a first vibration block installed on the side of the funnel, a fixed shaft connected to the lower part of the connecting rod, a transmission mechanism provided on the fixed shaft, the transmission mechanism connected to the baffle of the funnel discharge port, and a timer provided on the connecting rod; a sample mold provided directly below the funnel, and the flow rate of the concrete can be obtained by comparing the time of the timer and the mass of concrete flowing into the sample mold, thereby obtaining the fluidity performance of the concrete; the concrete fluidity detection box is provided with a humidity control component and a temperature control component to meet the standard curing conditions of the concrete sample block. This device integrates concrete fluidity detection and sample block curing and molding, and can not only detect the fluidity of concrete, but also realize the simultaneous curing of the sample block, thereby improving the efficiency of concrete fluidity detection and sample block production.

Description

Technical Field

[0001] The present invention relates to the field of civil engineering construction, and in particular to a multifunctional concrete fluidity detection and sample curing device. Background Art

[0002] Concrete is a commonly used raw material in the field of construction engineering. Its fluidity represents the viscosity of concrete and is one of its most important indicators. If the viscosity of concrete is too low, it will not solidify in time during use, and the quality of the concrete blocks formed will not meet the standards. If the concrete is too viscous, it will be inconvenient to pour during construction and waste resources. When making concrete, only some experienced workers can determine whether its fluidity meets the standards. In order to enable personnel from all industries to determine whether its fluidity meets the standards and quantify its fluidity, it is urgent to use a detection device to detect the fluidity of concrete. After testing the fluidity of concrete, it is necessary to make sample blocks and cure them. Then, by performing characteristic tests on the sample blocks, it can be determined whether the concrete can be used in practice. At present, the production and curing of sample blocks are usually carried out separately in a standard curing environment. These are two different processes from the concrete fluidity detection device. Concrete cannot be made into sample blocks in time after testing, which affects work efficiency. Summary of the Invention

[0003] The present invention provides a multifunctional concrete fluidity detection and sample curing device, which solves the problem of inconvenience in use caused by the separation of a concrete fluidity detection device and a sample block making device.

[0004] A multifunctional concrete fluidity detection and sample curing device, comprising: a concrete fluidity detection box, a funnel connected to the bottom of the top of the concrete fluidity detection box through an elastic member;

[0005] A connecting rod and a first vibrating block are installed on the side of the funnel. The lower part of the connecting rod is connected to a fixed shaft. A transmission mechanism is provided on the fixed shaft. The transmission mechanism is connected to the baffle of the funnel discharge port. A timer is provided on the connecting rod.

[0006] A sample mold for making sample blocks is provided directly below the funnel, and a humidity control component and a temperature control component for curing the sample blocks are provided on the concrete fluidity testing box.

[0007] The beneficial effects of adopting the above technical solution are as follows: a first vibration block is provided on the funnel to assist the concrete in flowing downward, and is connected to the baffle through a transmission mechanism to control the flow of concrete. When the timer starts, the sample mold under the funnel receives the flowing concrete. If the fluidity of the concrete meets the standard requirements, a concrete sample block is formed through the sample mold and cured. The device realizes concrete fluidity detection, sample block production and curing through a simple structure, and has the advantages of high efficiency and process saving.

[0008] Furthermore, a pressure sensor and a second vibration block are provided below the sample mold. The pressure sensor is used to detect the mass of concrete flowing into the sample mold, and the second vibration block is used to oscillate the concrete to form a standard sample block.

[0009] The beneficial effects of adopting the above technical solution are as follows: the pressure sensor can detect the change in the mass of concrete in the sample mold, and combined with the timing record of the timer, the fluidity index of different time periods can be obtained; if the fluidity meets the standard, the concrete in the sample mold can be vibrated evenly through the second vibration block to form a standard sample block.

[0010] Furthermore, the transmission mechanism includes a gear, a rack and a motor. The gear is arranged on one side of the fixed shaft, and the other side of the fixed shaft is connected to the motor. The rack is arranged at the discharge port of the funnel and meshes with the gear, and the rack is driven to move by the motor.

[0011] Furthermore, a protrusion is provided on the rack, and a touch switch is provided on the timer, and the timer is triggered to start timing by pressing the touch switch with the protrusion.

[0012] Furthermore, a control panel is provided on the outside of the concrete fluidity detection box, and the control panel is communicatively connected with the motor, the pressure sensor and the timer respectively.

[0013] The beneficial effects of adopting the above technical solution are as follows: the data recorded by the pressure sensor and the timer can be received through the control panel, and the motor can be adjusted to rotate forward or reverse to open or close the funnel mouth.

[0014] Furthermore, the above-mentioned humidity control component includes a humidity sensor, a spray head and a water tank. The spray head is connected to the water tank through a water pipe, and an induction switch is provided on the water pipe; the humidity sensor and the spray head are both installed on the inner wall of the concrete fluidity detection box through a connecting seat.

[0015] The beneficial effect of adopting the above technical solution is that the curing humidity of the sample block can be adjusted through the humidity control component, so that the sample block can be cured under standard curing conditions.

[0016] Furthermore, the temperature control component includes a temperature sensor and a heating element, and the temperature inside the concrete fluidity detection box is adjusted by the heating element; a waterproof cover is provided on the outside of the heating element.

[0017] The beneficial effects of adopting the above technical solution are: the temperature environment inside the concrete fluidity test box can be adjusted by the temperature control component, so that the sample blocks can be cured under standard curing conditions; the provision of a waterproof cover can prevent the spray head from spraying droplets onto the heating element, preventing safety accidents.

[0018] Furthermore, a compression pad is provided at the contact portion between the funnel and the rack.

[0019] The beneficial effects of adopting the above technical solution are as follows: the squeeze pad can play a sealing role on the one hand, and can prevent the rack and the funnel from being worn due to direct friction on the other hand.

[0020] Furthermore, a sampling door is provided on the side wall of the concrete fluidity detection box, and the size of the sampling door is larger than the size of the sample mold.

[0021] Furthermore, a protective door is provided above the concrete fluidity testing box, and both the protective door and the sample mold are provided with handles.

[0022] The present invention has the following beneficial effects:

[0023] (1) With this device, both experienced and new staff can test the fluidity of concrete, which reduces the error of experience judgment and improves efficiency. In addition, by comparing the time and the mass of concrete flowing into the sample mold, the fluidity within a specific time period can be quantified.

[0024] (2) Combine the concrete fluidity test with the sample block production and curing, and integrate the two processes into one. Concrete that passes the fluidity test can be quickly made into standard sample blocks and cured under standard curing conditions. This can effectively shorten the time for sample testing and production, thereby improving project efficiency.

[0025] (3) Both fluidity testing and specimen curing can be controlled through the control panel without manual operation, which has the advantages of simple operation, high efficiency and good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of the device of the present invention;

[0027] Figure 2 Schematic diagram of the top view of the device of the present invention;

[0028] Figure 3 It is a side structural schematic diagram of the device of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the funnel in the present invention;

[0030] Figure 5 This is a diagram of the gear rack connection structure in the present invention;

[0031] Figure 6 This is a schematic diagram of the components of the humidity control assembly of the present invention;

[0032] Figure 7 Schematic diagram of the components of the temperature control assembly in the present invention.

[0033] In the figure: 1-concrete fluidity detection box; 101-elastic member; 102-gear; 103-rack; 104-connecting rod; 105-motor; 106-fixed shaft; 107-extrusion pad; 108-touch switch; 109-bump; 110-control panel; 111-sampling door; 112-protective door; 113-handle; 2-funnel; 3-sample mold; 4-humidity control component; 401-humidity sensor; 402-spray head; 403-induction switch; 404-connecting seat; 5-temperature control component; 501-temperature sensor; 502-heating element; 503-waterproof cover; 6-water tank; 71-first vibration block; 72-second vibration block; 8-pressure sensor; 9-timer. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] refer to Figures 1 to 7 The present invention provides a multifunctional concrete fluidity testing and sample curing device, comprising: a concrete fluidity testing box 1, and a funnel 2 arranged inside the concrete fluidity testing box 1. The concrete fluidity testing box 1 is in the shape of a quadrangular prism with a through hole on the top. A protective door 112 is installed at the through hole by a hinge to facilitate opening and closing the interior of the box, prevent concrete from splashing out during testing, and provide a relatively stable sealed environment for curing concrete sample blocks.

[0036] The funnel 2 is connected to the bottom of the top of the concrete fluidity detection box 1 through an elastic member 101. A connecting rod 104 and a first vibration block 71 are installed on the side of the funnel 2; the first vibration block 71 can vibrate the funnel 2 to assist the concrete to flow downward and speed up the detection speed. The elastic member 101 is a spring, which is arranged between the funnel 2 and the concrete fluidity detection box 1 to isolate the vibration generated by the first vibration block 71 on the funnel 2, ensuring that the concrete fluidity detection box 1 does not vibrate.

[0037] The lower part of the connecting rod 104 is connected to a fixed shaft 106, which passes through the connecting rod 104 and is rotatable with the connecting rod 104; a gear 102 is provided on the fixed shaft 106 close to one side of the connecting rod 104, and a motor 105 is connected to the other side, which drives the fixed shaft 106 to rotate through the motor 105, thereby driving the gear 102 to rotate; a long rack 103 is provided at the outlet at the bottom end of the funnel 2, which is used to close the outlet of the funnel 2. The rack 103 is engaged with the gear 102, and the rotating gear 102 drives the rack 103 to move horizontally to open or close the outlet of the funnel 2.

[0038] A protrusion 109 is provided on the rack 103, a timer 9 is provided on the connecting rod 104, and a touch switch 108 is provided on the timer 9. When the rack 103 moves close to the timer 9, the protrusion 109 squeezes the touch switch 108, causing the touch switch to start timing. At the same time, the outlet of the funnel 2 is also opened, and the fluidity of the concrete is recorded by the length of time.

[0039] The contact portion between the funnel 2 and the rack 103 is provided with an extrusion pad 107, which is a rubber pad. Firstly, its sealing function prevents concrete from leaking from the gap, and secondly, it prevents the funnel 2 and the rack 103 from direct friction contact and causing wear.

[0040] A sample mold 3 for making sample blocks is provided at the discharge port just below the funnel 2. It serves as a container for receiving concrete and a mold for making concrete sample blocks. The sample mold 3 is a rectangular chamber structure, the interior of which is divided by partitions to meet the standard size of sample blocks. When the fluidity of the concrete meets the standard, the concrete flowing into the sample mold 3 does not need to be taken out and can be directly made into sample blocks, saving time and processes.

[0041] A pressure sensor 8 and a second vibration block 72 are provided below the sample mold 3. The pressure sensor 8 detects the mass of the concrete flowing into the sample mold 3. Combined with the timer 9, an index of the concrete fluidity can be obtained. The second vibration block 72 oscillates the concrete in the sample mold 3 so that it can be evenly distributed in each small cavity to form a standard sample block.

[0042] The concrete fluidity index can be calculated based on the principle proposed by Orimet (under the condition that high-fluidity concrete mixture does not segregate, it flows out of the vertical pipe under the action of its own weight, and the outflow rate is mainly affected by the viscosity coefficient of the mixture). That is: the ratio of the total volume Vm of concrete flowing out of funnel 2 to the outflow time t is measured to obtain the outflow rate Vo of the concrete mixture. The larger the Vo value, the smaller the viscosity coefficient.

[0043] In order to ensure that the curing specimens of concrete can be cured for 28 days in an environment with a constant temperature of (20±2)°C and a humidity greater than 95%, a humidity control component and a temperature control component for curing the specimens are provided inside the concrete fluidity test box 1, and a control panel 110 is provided outside. The control panel 110 is respectively communicated with the motor 105, the pressure sensor 8 and the timer 9. The control panel 110 can receive data from the pressure sensor 8 and the timer 9 to form a fluidity change curve. The control panel 110 can also adjust the motor 105 to rotate forward or reverse to open or close the discharge port of the funnel 2.

[0044] The humidity control component includes a humidity sensor 401, a spray head 402 and a water tank 6. The spray head 402 is connected to the water tank 6 through a water pipe. An induction switch 403 is provided on the water pipe. The humidity sensor 401 and the spray head 402 are both installed on the inner wall of the concrete fluidity detection box 1 through a connecting seat 404. When the concrete in the sample mold 3 needs to be cured, the humidity sensor 401 detects the humidity in the concrete fluidity detection box. If the humidity is within the curing standard range, it will not work. Otherwise, the induction switch 403 will be turned on, and the spray head 402 will spray to adjust the humidity in the box. The induction switch 403 can control the size of the water flow in the water pipe, thereby adjusting the spray speed.

[0045] The temperature control component includes a temperature sensor 501 and a heating element 502. The heating element 502 adjusts the temperature inside the concrete fluidity test box 1 so that the temperature inside the concrete fluidity test box 1 meets the specimen curing standard. The heating element 502 is an electric heating wire with a waterproof cover 503 on the outside to prevent mist droplets from adhering to the surface of the electric heating wire and causing safety accidents.

[0046] The humidity sensor 401, the induction switch 403 and the temperature sensor 501 can all be connected to the control panel 110 for communication, so as to facilitate real-time control of the temperature and humidity in the box and to adjust them.

[0047] A sampling door 111 is further provided on the side wall of the concrete fluidity testing box 1 . The size of the sampling door 111 is larger than that of the sample mold 3 , so that the sample mold 3 can be easily taken out.

[0048] The protective door 112 and the sample mold 3 are both provided with handles 113 to facilitate the inspection personnel to perform operations such as opening, closing, taking and holding.

[0049] The working principle of the device of the present invention is as follows: the entire device is placed on the flat ground of the construction site, the protective door is opened, and a concrete sample of specified mass is poured into the funnel. The motor is turned on through the control panel, the gear starts to rotate, driving the rack to move and open the discharge port at the bottom of the funnel. When the protrusion on the rack contacts the touch switch, the timer starts timing, the vibration block on the funnel vibrates, and the concrete in the funnel flows out of the discharge port and falls into the sample mold below. When the pressure data of the pressure sensor displayed on the control panel shows no change, the timer is turned off, the outflow speed is calculated according to the time recorded by the timer, and the specification is checked to see whether the flow speed meets the standard.

[0050] The above description is merely a preferred embodiment of the present invention and does not represent all possible forms of the present invention. The scope of protection of the present invention is not limited to such specific descriptions and embodiments. Various other modifications and improvements may be made based on the technical teachings disclosed by the present invention without departing from the essence of the present invention, and such modifications and improvements remain within the scope of protection of the present invention.

Claims

1. A multifunctional concrete fluidity detection and sample curing device, characterized in that: include: A concrete fluidity detection box (1), and a funnel (2) connected to the bottom of the top of the concrete fluidity detection box (1) via an elastic member (101); A connecting rod (104) and a first vibration block (71) are installed on the side of the funnel (2); a fixed shaft (106) is connected to the lower part of the connecting rod (104); a transmission mechanism is provided on the fixed shaft (106); the transmission mechanism is connected to the baffle of the discharge port of the funnel (2); and a timer (9) is provided on the connecting rod (104); A sample mold (3) for making a sample block is provided directly below the funnel (2), and a humidity control component and a temperature control component for curing the sample block are provided on the concrete fluidity testing box (1); A pressure sensor (8) and a second vibration block (72) are provided below the sample mold (3); the pressure sensor (8) detects the mass of concrete flowing into the sample mold (3); and the second vibration block (72) oscillates the concrete to form a standard sample block; The transmission mechanism comprises a gear (102), a rack (103) and a motor (105); the gear (102) is arranged on one side of the fixed shaft (106); the other side of the fixed shaft (106) is connected to the motor (105); the rack (103) is arranged at the discharge port of the funnel (2) and meshes with the gear (102); and the rack (103) is driven to move by the motor (105); The rack (103) is provided with a protrusion (109), and the timer (9) is provided with a touch switch (108), and the timer (9) is triggered to start timing by squeezing the touch switch (108) by the protrusion (109); When the rack (103) moves close to the timer (9), the protrusion (109) presses the touch switch (108), causing the touch switch (108) to start timing. At the same time, the outlet of the funnel (2) is also opened, and the fluidity of the concrete is recorded by the length of time.

2. The multifunctional concrete fluidity detection and sample curing device according to claim 1 is characterized in that: A control panel (110) is provided on the outside of the concrete fluidity detection box (1), and the control panel (110) is communicatively connected to the motor (105), the pressure sensor (8), and the timer (9), respectively.

3. The multifunctional concrete fluidity detection and sample curing device according to claim 1 is characterized in that: The humidity control component comprises a humidity sensor (401), a spray head (402) and a water tank (6); the spray head (402) is connected to the water tank (6) via a water pipe, and an induction switch (403) is provided on the water pipe; the humidity sensor (401) and the spray head (402) are both mounted on the inner wall of the concrete fluidity detection box (1) via a connecting seat (404).

4. The multifunctional concrete fluidity detection and sample curing device according to claim 1 is characterized in that: The temperature control component comprises a temperature sensor (501) and a heating element (502), and the temperature inside the concrete fluidity detection box (1) is adjusted via the heating element (502); a waterproof cover (503) is provided on the outside of the heating element (502).

5. The multifunctional concrete fluidity detection and sample curing device according to claim 1 is characterized in that: A pressing pad (107) is provided at the contact portion between the funnel (2) and the rack (103).

6. The multifunctional concrete fluidity detection and sample curing device according to claim 1 is characterized in that: A sampling door (111) is provided on the side wall of the concrete fluidity detection box (1), and the size of the sampling door (111) is larger than the size of the sample mold (3).

7. The multifunctional concrete fluidity detection and sample curing device according to any one of claims 1 to 6, characterized in that: A protective door (112) is provided above the concrete fluidity detection box (1), and handles (113) are provided on both the protective door (112) and the sample mold (3).

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