High-accuracy concrete slump detector

Abstract

The invention relates to the technical field of concrete detection, and discloses a high-accuracy concrete slump detector which comprises a measuring body, a measuring cone and a calculating unit, a supporting seat is arranged on the upper side of the measuring body, the measuring cone is arranged on the upper side of the supporting seat, a measuring telescopic rod is arranged on the upper side of the measuring cone, and a measuring rod is arranged on the upper side of the measuring telescopic rod. According to the device, the measuring body, the supporting seat, the measuring cone cylinder, the fixed middle plate, the swing plates and the like are arranged, firstly, the fixed middle plate and the swing plates are matched to flatten concrete at the upper end of the measuring cone cylinder, so that the concrete at the upper end of the measuring cone cylinder can be flattened, and the concrete at the upper end of the measuring cone cylinder can be flattened; the concrete collapse distance can be measured when the fixed middle plate moves downwards, the second swing plate and the second swing plate swing on the upper side of the concrete, the concrete is stirred, the fixed middle plate continues to move downwards, and the further collapse distance of the concrete is measured.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete detection, and particularly to a high-accuracy concrete slump detector. Background Art

[0002] The slump of concrete mainly refers to the plasticizing performance and pumpability of concrete. The factors affecting the slump of concrete mainly include gradation change, water content, weighing deviation of weighing instruments, and dosage of admixtures. The slump refers to the workability of concrete. Specifically, it ensures the normal progress of construction, including the water retention, fluidity, and cohesion of concrete. The traditional method is to use a trumpet-shaped slump bucket. After filling it with concrete, tamping it, leveling it, and then pulling out the bucket, the concrete will slump due to its own weight. Subtracting the height of the highest point of the slumped concrete from the height of the bucket is called the slump. This method requires manual operation and there are many uncontrollable factors, resulting in deviation of the test results. Therefore, how to objectively and accurately measure the slump of concrete is the main problem to be solved by the present invention. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-accuracy concrete slump detector to overcome the above-mentioned defects in the prior art.

[0004] The present invention is realized through the following technical solutions.

[0005] A high-accuracy concrete slump detector of the present invention includes a measuring body and a measuring conical barrel. A calculation unit is provided inside the measuring body. A support base is provided on the upper side of the measuring body. The measuring conical barrel is provided on the upper side of the support base. A measuring telescopic rod is provided on the upper side of the measuring conical barrel. A fixed intermediate plate is provided at the end of the measuring telescopic rod. Swing plates are rotatably provided on both sides of the fixed intermediate plate. A measuring chamber is provided inside the support base. A communication groove is provided around the upper side of the support base. The communication groove communicates with the measuring chamber. The opening of the measuring chamber faces downward. The measuring body is provided at the lower opening of the measuring chamber. A water content measuring chamber with an upward opening is provided at the center of the upper side of the measuring body. A clean cavity with an upward opening is provided around the water content measuring chamber on the upper side of the measuring body. A light-emitting body is installed on the upper side wall of the measuring chamber. A flow rate measuring device is provided inside the water content measuring chamber. A photoelectric sensor integrated board is provided on the bottom wall of the clean cavity. A light-transmitting plate is provided at the upper opening of the clean cavity. The light-transmitting plate is inclined in a conical shape towards the water content measuring chamber. The water content measuring chamber is located at the lowest position. A filter plate is provided at the upper opening of the water content measuring chamber.

[0006] As a further technical solution, a support rod is provided on the outer side of the measuring conical barrel. A lifting telescopic rod is provided between the lower side of the support rod and the upper side of the support base.

[0007] Further technical solution: A support body is provided on the upper side of the support rod. A cross bar is rotatably provided at the upper end of the support body. A telescopic rod is hinged between the cross bar and the support body. The measuring telescopic rod is installed on the lower side of the cross bar.

[0008] Further technical solution: A sensing body is provided on the axis of the measuring telescopic rod. A chute with an opening downward is provided inside the sensing body. A sliding rod is slidably provided in the chute. A return spring is provided between the sliding rod and the chute wall. A distance sensor is installed on the upper side wall of the chute. The distance sensor measures the distance between the sliding rods. The fixed intermediate plate is provided on the lower side of the sliding rod.

[0009] Further technical solution: A swinging telescopic rod is hinged between the fixed intermediate plate and the side of the sliding rod.

[0010] Further technical solution: A vibration chute with an opening inward is provided on the inner cavity wall of the measuring cone. A vibration arc plate is slidably provided in the vibration chute. A vibrator is installed between the vibration arc plate and the vibration chute wall.

[0011] Further technical solution: A limiting block is provided at the central position on the upper side of the support base. The limiting block can block the lower opening of the measuring cone. A shielding ring plate is provided around the upper side of the support base.

[0012] Advantages of the present invention:

[0013] By setting a measuring body, a support base, a measuring cone, a fixed intermediate plate, a swinging plate, etc., for a high-accuracy concrete slump detector of the present invention. First, the cooperation between the fixed intermediate plate and the swinging plate of the device can flatten the concrete at the upper end of the measuring cone. When the fixed intermediate plate moves downward, the slump distance of the concrete can be measured. Second, the two groups of swinging plates swing on the upper side of the concrete to stir the concrete. Then the fixed intermediate plate continues to move downward to measure the further collapse distance of the concrete, so as to obtain the reference data of the concrete cohesiveness. By comprehensively calculating the cohesiveness and fluidity of the concrete, compared with the traditional manual measurement, the measurement accuracy of this device is high, the measurement speed is fast, the error caused by human participation is avoided, and the objectivity is stronger.

[0014] By setting up a light emitter, a photoelectric sensor integrated board, a flow meter, a water content measurement chamber, a clean chamber, etc., under the action of gravity, the concrete flows into the measurement chamber and finally stays on the surface of the light-transmitting plate. The light emitter is activated, and the photoelectric sensor integrated board senses the light and forms a pattern. After being calculated by the calculation unit, the average diameter of the diffusion circle is calculated, and the fluidity is calculated according to the average diameter of the irregular circle of the concrete diffusion, obtaining accurate fluidity reference data. Compared with the human eye estimation, the accuracy of this device is greatly improved. The seepage water of the concrete flows into the water content measurement chamber through the filter plate under the action of gravity, and the flow meter measures the water volume, thereby obtaining the water retention reference data of the concrete, quantifying this index, and providing data support for adjusting the concrete formula.

[0015] The device is provided with a vibration chute, a vibrator, and a vibration arc plate on the inner wall of the measuring frustum. The vibrator drives the vibration arc plate to reciprocate in the vibration chute. The vibration of the vibration arc plate can drive the nearby concrete to vibrate, thus playing a role in uniform vibration and avoiding a large number of gaps in the concrete. Compared with manual knocking, the vibration arc plate acts on the side of the concrete from bottom to top, with a wide range of action, can vibrate the concrete at one time, has a short operation time, and a better vibration effect. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is Figure 1 the enlarged schematic diagram of the structure at A in

[0020] Figure 3 is Figure 1 the enlarged schematic diagram of the structure at B in

[0021] Figure 4 is Figure 1 the enlarged schematic diagram of the structure at C in

[0022] Figure 5 is Figure 1 the enlarged schematic diagram of the structure at D in Detailed Embodiments

[0023] The following is combined withFigures 1-5 A detailed description of the present invention is given. For the convenience of description, the following orientation regulations are defined for the following text: The up-down, left-right, front-back directions mentioned below are consistent with the up-down, left-right, front-back directions of the projection relationship of itself. Figure 1

[0024] Combined with the attached Figures 1-5 A high-accuracy concrete slump detector described above includes a measuring body 10 and a measuring cone barrel 16. A calculation unit is provided in the measuring body 10. A support seat 11 is provided on the upper side of the measuring body 10. The measuring cone barrel 16 is provided on the upper side of the support seat 11. A measuring telescopic rod 25 is provided on the upper side of the measuring cone barrel 16. A fixed intermediate plate 33 is provided at the end of the measuring telescopic rod 25. Swing plates 32 are rotatably provided on both sides of the fixed intermediate plate 33. A measuring chamber 20 is provided in the support seat 11. A communication groove 19 is provided around the upper side of the support seat 11. The communication groove 19 communicates with the measuring chamber 20. The measuring chamber 20 opens downward. The measuring body 10 is provided at the lower opening of the measuring chamber 20. A water content measurement chamber 34 with an upward opening is provided at the center of the upper side of the measuring body 10. A clean chamber 35 with an upward opening is provided on the upper side of the measuring body 10 around the water content measurement chamber 34. A light-emitting body 21 is installed on the upper side wall of the measuring chamber 20. A flow rate measuring device 39 is provided in the water content measurement chamber 34. A photoelectric sensor integration board 38 is provided on the bottom wall of the clean chamber 35. A light-transmitting plate 36 is provided at the upper opening of the clean chamber 35. The light-transmitting plate 36 is inclined in a conical shape towards the water content measurement chamber 34. The water content measurement chamber 34 is located at the lowest point of the light-transmitting plate 36. A filter plate 37 is provided at the upper opening of the water content measurement chamber 34.

[0025] ​The concrete to be measured is poured into the inner cavity of the measuring cone 16 from the upper opening of the measuring cone 16. After ramming, the measuring telescopic rod 25 moves downward to drive the fixed intermediate plate 33 and the swing plate 32 to extrude the excess concrete, so that the concrete at the upper opening of the measuring cone 16 remains flush. Move the measuring cone 16 upward, and the concrete flows out from the lower opening of the measuring cone 16 to the upper surface of the support base 11. Under the action of gravity, the concrete spreads around. When the concrete does not spread to the upper opening of the communication groove 19, calculate the fluidity according to the distance of the concrete slump. At this time, the measuring telescopic rod 25 pushes the fixed intermediate plate 33 downward, and the swing plate 32 swings at a certain angle through the upper opening of the measuring cone 16 until the fixed intermediate plate 33 touches the upper surface of the concrete, and the collapse distance of the concrete is measured. When the concrete flows into the communication groove 19, calculate the fluidity according to the average diameter of the irregular circle formed by the spread of the concrete. Under the action of gravity, the concrete flows into the measuring chamber 20 and finally stays on the surface of the light-transmitting plate 36. The light-emitting body 21 is started, and the photoelectric sensor integrated board 38 senses the light and forms a pattern. After being calculated by the calculation unit, the average diameter of the spread circle is calculated to obtain accurate fluidity reference data. The seepage water of the concrete flows into the water content measurement chamber 34 through the filter plate 37 under the action of gravity, and the flow meter 39 measures the water volume, so as to obtain the water retention reference data of the concrete. The two swing plates 32 swing on the upper side of the concrete to stir the concrete, and the fixed intermediate plate 33 continues to move downward to measure the further collapse distance of the concrete, so as to obtain the cohesion reference data of the concrete.

[0026] Preferably, a support rod 13 is provided on the outer side of the measuring cone 16, and a lifting telescopic rod 12 is provided between the lower side of the support rod 13 and the upper side of the support base 11.

[0027] The lifting telescopic rod 12 expands and contracts to drive the support rod 13 and the measuring cone 16 to move up and down, and the lifting telescopic rod 12 provides power for the movement of the measuring cone 16.

[0028] Preferably, a support body 14 is provided on the upper side of the support rod 13, a cross bar 15 is rotatably provided at the upper end of the support body 14, a telescopic rod 18 is hinged between the cross bar 15 and the support body 14, and the measuring telescopic rod 25 is installed on the lower side of the cross bar 15.

[0029] The telescopic rod 18 expands and contracts to drive the cross bar 15 to rotate around the end of the support body 14, and the rotation of the cross bar 15 drives the measuring telescopic rod 25 to swing. The telescopic rod 18 provides power for the fixed intermediate plate 33 to resist or release the upper opening of the measuring cone 16.

[0030] Preferably, the shaft of the measuring telescopic rod 25 is provided with a sensing body 26, a downwardly opening slide groove 27 is provided in the sensing body 26, a sliding rod 28 is slidably provided in the slide groove 27, a return spring 30 is provided between the sliding rod 28 and the wall of the slide groove 27, a distance sensor 29 is installed on the upper side wall of the slide groove 27, the distance sensor 29 measures the spacing of the sliding rod 28, and the fixed intermediate plate 33 is provided on the lower side of the sliding rod 28.

[0031] The measuring telescopic rod 25 is extended and retracted to drive the lower side sensor 26 to move up and down. The sensor 26 provides a reset spring 30 to drive the sliding rod 28 to move up and down. When the fixed middle plate 33 moves downward and contacts the upper surface of the concrete, the fixed middle plate 33 compresses the reset spring 30, and the distance sensor 29 detects that the sliding rod 28 slides in the slide groove 27, thereby determining the height of the fixed middle plate 33 at this time, and calculating the distance of the concrete collapse.

[0032] Preferably, a swing telescopic rod 31 is hingedly provided between the fixed middle plate 33 and the side of the sliding rod 28 .

[0033] The extension and retraction of the swing telescopic rod 31 can drive the swing plate 32 to rotate around the end of the fixed middle plate 33. When the swing plate 32 rotates to a horizontal position, the swing plates 32 at both ends and the fixed middle plate 33 can cover the upper opening of the measuring vertebral cylinder 16. When the two swing plates 32 are retracted, the fixed middle plate 33 and the swing plate 32 can pass through the upper opening of the measuring vertebral cylinder 16.

[0034] Preferably, the inner wall of the measuring vertebral cylinder 16 is provided with a vibration chute 24 opening inwards, the vibration chute 24 is slidably provided with a vibration arc plate 22, and a vibrator 23 is installed between the vibration arc plate 22 and the wall of the vibration chute 24.

[0035] The vibrator 23 is started, and the vibrator 23 drives the vibrating arc plate 22 to vibrate back and forth in the vibrating chute 24. The vibration of the vibrating arc plate 22 can drive the nearby concrete to vibrate, thereby achieving a uniform vibration effect and avoiding the existence of many gaps in the concrete.

[0036] Preferably, a limit block 40 is provided at the center position of the upper side of the support seat 11 , and the limit block 40 can clamp the lower opening of the measuring vertebral cylinder 16 . A shielding ring plate 41 is provided around the upper side of the support seat 11 .

[0037] The limit block 40 can clamp the lower opening of the measuring cone 16, and the shielding ring plate 41 can block the concrete from spreading outwards and prevent the concrete from flowing to the ground.

[0038] The above embodiments are only used to illustrate the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-precision concrete slump detector, comprising a measuring body, a measuring cone, and a calculation unit, characterized in that: A support seat is provided on the upper side of the measuring body, the measuring cone is provided on the upper side of the support seat, a measuring telescopic rod is provided on the upper side of the measuring cone, a fixed middle plate is provided at the end of the measuring telescopic rod, swing plates are rotatably provided on both sides of the fixed middle plate, a measuring chamber is provided in the support seat, a connecting groove is provided around the upper side of the support seat, the connecting groove is connected with the measuring chamber, the measuring chamber opens downward, the measuring body is provided at the opening on the lower side of the measuring chamber, a water content measuring chamber is provided at the center of the measuring body, the measuring body is located around the water content measuring chamber and a clean cavity is provided with an opening upward, a luminous body is installed on the upper side wall of the measuring chamber, a flow meter is provided in the water content measuring chamber, a photoelectric sensor integrated board is provided on the bottom wall of the clean cavity, a light-transmitting plate is provided at the upper opening of the clean cavity, the light-transmitting plate is conical, the light-transmitting plate is inclined downward toward the water content measuring chamber, and the water content measuring chamber is located at the bottom.

2. A high-accuracy concrete slump detector according to claim 1, characterized in that: A support rod is arranged outside the measuring vertebral cylinder, and a lifting telescopic rod is arranged between the lower side of the support rod and the upper side of the supporting seat.

3. A high-accuracy concrete slump detector according to claim 2, characterized in that: A support body is arranged on the upper side of the support rod, a cross bar is rotatably arranged on the upper end of the support body, a telescopic rod is hingedly arranged between the cross bar and the support body, and the measuring telescopic rod is installed on the lower side of the cross bar.

4. A high-accuracy concrete slump detector according to claim 1, characterized in that: The shaft of the measuring telescopic rod is provided with a sensing body, a downwardly opening slide groove is provided in the sensing body, a sliding rod is slidably provided in the slide groove, a return spring is provided between the sliding rod and the slide groove wall, a distance sensor is installed on the upper side wall of the slide groove, the distance sensor measures the spacing of the sliding rod, and the fixed middle plate is provided on the lower side of the sliding rod.

5. A high-accuracy concrete slump detector according to claim 1, characterized in that: A swing telescopic rod is hingedly provided between the fixed middle plate and the side edge of the sliding rod.

6. A high-accuracy concrete slump detector according to claim 1, characterized in that: The inner wall of the measuring vertebral cylinder is provided with a vibration chute opening inwardly, the vibration chute is slidably provided with a vibration arc plate, and a vibrator is installed between the vibration arc plate and the wall of the vibration chute.

7. A high-accuracy concrete slump detector according to claim 1, characterized in that: A limit block is provided at the center position of the upper side of the support seat, and the limit block can clamp the lower opening of the measuring vertebral cylinder. A shielding ring plate is provided around the upper side of the support seat.

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