CN221039057U - Device for testing underwater anti-dispersion performance of concrete under flowing water flow state - Google Patents

Device for testing underwater anti-dispersion performance of concrete under flowing water flow state Download PDF

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Publication number
CN221039057U
CN221039057U CN202322473478.3U CN202322473478U CN221039057U CN 221039057 U CN221039057 U CN 221039057U CN 202322473478 U CN202322473478 U CN 202322473478U CN 221039057 U CN221039057 U CN 221039057U
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concrete
water tank
underwater
water flow
water
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CN202322473478.3U
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戴圣
徐菲
韩雪松
徐天磊
李怀森
葛津宇
何旸
芦浩
韦华
欧阳幼玲
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Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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Abstract

The utility model discloses a device for testing underwater anti-dispersion performance of concrete in a running water flow state, and relates to the technical field of the device for testing the underwater performance of the concrete. Including water tank, cantilever support, industrial computer, the water tank outside is equipped with the arm, and the terminal preceding lateral wall of arm is connected with the unloading funnel, left side wall upper portion and right side wall lower part are equipped with wave pump, the water tank bottom is equipped with the shaping test mould, be provided with data acquisition assembly on the shaping test mould left side wall, wave pump and data acquisition assembly all link to each other with the industrial computer, and concrete anti dispersion performance is through industrial computer real-time display at touch display screen under water. The utility model solves the problem that the existing equipment does not have the equipment for testing the underwater anti-dispersion performance of the concrete in the state of simulating the flowing water flow; the concrete feeding device is improved, so that the feeding is simple and is not easy to pour, and the test error is reduced; and the test step is optimized, so that test workload and time are saved for scientific researchers, and the underwater dispersion resistance test precision of the concrete is improved.

Description

Device for testing underwater anti-dispersion performance of concrete under flowing water flow state
Technical Field
The utility model belongs to the technical field of concrete underwater performance testing devices, and particularly relates to a concrete underwater anti-dispersion performance testing device in a running water flow state.
Background
The current test of the anti-dispersion performance of the concrete in the technical requirements of the underwater non-dispersion concrete flocculant in DL/T5117-2000 and GB/T37990-2019 of the underwater non-dispersion concrete test procedure is mainly in a still water environment, and the influence effect of the flowing water flow state on the underwater non-dispersion concrete when the concrete is poured underwater in actual engineering is not considered.
The conventional underwater non-dispersive concrete anti-dispersion performance testing method mainly comprises a weighing method, a suspension measuring method and a pH value method, and the weighing method and the pH value method have the defects of complicated operation steps, long testing time, poor testing precision and the like, and bring a plurality of inconveniences for researching the underwater anti-dispersion performance of the concrete.
Disclosure of utility model
The utility model provides a device for testing the underwater dispersion resistance of concrete in a flowing water flow state, which aims to solve the technical problems in the background technology.
The utility model adopts the following technical scheme: device for testing underwater anti-dispersion performance of concrete in flowing water flow state, comprising:
The top of the water tank is of an open structure; the bottom of the water tank is provided with a plurality of water outlets;
the blanking assembly is arranged adjacent to the water tank; the output end of the blanking component is operatively positioned in the water tank;
the molding test mold area is arranged at a designated position in the water tank; the molding test mold area is provided with a data acquisition assembly;
the water flow simulation assembly is arranged in the side wall of the water tank.
In a further implementation, the method further includes: the touch display screen, the power indicator lamp and the power switch are arranged on the outer wall of the box body.
In a further implementation, the blanking assembly includes:
The blanking hopper is arranged at the tail end of the mechanical arm; the blanking funnel at least has a selection degree of freedom and a lifting degree of freedom.
In a further implementation, the molding test zone includes:
Two groups of partition boards with preset heights are arranged in the water tank according to preset intervals; the bottom of the partition board is connected with the bottom of the water tank, the side walls of the partition board are respectively connected with the inner arms corresponding to the water tank, and at least one water outlet is formed in the molding test mold area.
In a further implementation, the data acquisition component includes:
A water flow rate sensor and a turbidity sensor which are sequentially installed on one of the partition plates; the output ends of the water flow rate sensor and the turbidity sensor are electrically connected to the control main board.
In a further implementation, the water flow simulation assembly includes:
The wave making pumps are arranged in the side wall of the water tank according to the requirements.
In a further implementation, the robotic arm includes:
the upright post is arranged on one side of the water tank;
the cross arm is rotatably arranged at the top of the upright post;
The sliding table is arranged on the cross arm in a sliding manner;
The vertical arm is connected with the sliding table in a transmission way; the bottom of the vertical arm is provided with a fixed blanking funnel.
In a further implementation, the plurality of sets of wave-making pumps are respectively arranged in the two opposite sets of side walls and are staggered in height;
Wherein, the height of the lowest wave-making pump is not lower than the highest position of the molding test area.
The utility model has the beneficial effects that: the device uses the wave-making pump with adjustable drainage power to control the water flow speed in the water tank, creates a water-moving environment under different flow rates, and provides equipment support for researching the underwater dispersion resistance of concrete at different flow rates.
The device uses the turbidity sensor, the cantilever bracket to fix the blanking funnel and the method for fixing the bottom molding test mold position of the water tank, ensures that the blanking funnel position of the concrete is not overturned in the feeding process, and the concrete can be completely put into the test mold, thereby reducing test errors and improving test precision.
The device adopts the touch screen to control the water flow speed and observe the underwater dispersion resistance of the concrete, and has simple operation and convenient and fast data reading.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a top view of the present utility model.
FIG. 3 is a schematic illustration of the cantilever structure of the present utility model.
Each labeled in fig. 1-3 is: the device comprises a water tank 1, a water outlet 2, a blanking assembly 3, a touch display screen 4, a power indicator 5, a power switch 6, a partition 7, a water flow sensor 8, a turbidity sensor 9, a wave making pump 10, a blanking funnel 301, a stand column 302, a cross arm 303, a sliding table 304, a vertical arm 305 and a rotating table 306.
Detailed Description
The utility model is further described below with reference to examples and figures of the specification.
Example 1
As shown in fig. 1, the device for testing underwater anti-dispersion performance of concrete in a flowing water flow state comprises: in this embodiment, the top of the water tank 1 is an open structure, the water tank 1 is a cuboid with a size of 2000mm x 800mm, and a plurality of water outlets 2 are formed in the bottom of the water tank 1 in order to facilitate water discharge inside the water tank 1.
In order to create a good forming area for concrete, a forming test mold area is arranged at a designated position in the water tank 1, and a data acquisition assembly is arranged on the forming test mold area; the data acquisition component is used for acquiring the molding state of the concrete. Meanwhile, a water flow simulation assembly is arranged on the inner side wall of the water tank 1 and used for creating conditions for the water flow state of the concrete.
In order to facilitate the casting of concrete into the water tank 1 at a given location (i.e. above the profiled test zone), a blanking assembly 3 is provided adjacent the water tank 1, wherein the output end operability of the blanking assembly 3 is located vertically. In a further implementation, the blanking assembly 3 includes: the device comprises a mechanical arm and a blanking funnel 301 arranged at the tail end of the mechanical arm; the blanking funnel 301 has at least a selection degree of freedom and a lifting degree of freedom. In other words, when concrete needs to be put in, the discharging hopper 301 is controlled to be positioned outside the water tank 1 in advance, and the concrete is placed in the discharging hopper 301; immediately thereafter, the discharging hopper 301 is positioned in the water tank 1 by controlling the mechanical arm, and the concrete naturally drops to a designated position. In order to ensure that the concrete is not thrown out in advance when the mechanical arm is in a rotating state, the bottom of the blanking funnel 301 is sequentially provided with an upper caliber and a lower caliber from top to bottom. Wherein; the diameter of the sieve holes with the upper caliber is 100mm, and the diameter of the sieve holes with the lower caliber is 40mm. In a further embodiment, a predetermined distance is left between the upper caliber and the lower caliber, firstly to ensure pre-screening of the concrete, and secondly to ensure that the concrete falls off prematurely during the transfer process of the hopper 301 as much as possible.
In order to achieve the above description, the mechanical arm in the present embodiment includes: the vertical column 302 is arranged on one side of the water tank 1, a rotary table 306 is arranged at the top of the vertical column 302, a cross arm 303 is connected to the output end of the rotary table 306, the rotary table 306 has a rotation function, in other words, the central position of the rotary table 306 is connected with a rotation motor, and the rotation motor is vertically arranged at the top of the vertical column 302. The cross arm 303 is slidably provided with a sliding table 304, wherein the sliding table 304 can be connected through a transversely arranged air cylinder, in other words, the air cylinder main body is fixedly connected with the rotary table 306, and a telescopic rod of the air cylinder is connected with the sliding table 304 in a transmission manner, so that the sliding table 304 can move on the cross arm 303. Correspondingly, the vertical arm 305 penetrates through the sliding table 304, and the vertical arm 305 has the freedom degree of up-and-down movement, wherein the transmission connection between the vertical arm 305 and the sliding table 304 can also be realized through an air cylinder, and the two parts belong to the prior art and are not repeated. The bottom of the vertical arm 305 is configured to hold the blanking funnel 301.
In a further embodiment, the molding test zone comprises: two groups of partition plates 7 with preset heights are arranged in the water tank 1 at preset intervals; the bottom of the partition plate 7 is connected with the bottom of the water tank 1, the side walls of the partition plate 7 are respectively connected with the inner arms corresponding to the water tank 1, and at least one water outlet 2 is arranged in the molding test mold area.
The data acquisition assembly includes: a water flow rate sensor 8 and a turbidity sensor 9 mounted on one of the separators 7 in this order; the output ends of the water flow sensor 8 and the turbidity sensor 9 are electrically connected to a control main board, and a solid state disk is used for storing control programs in the control main board. In the embodiment, the model of the water flow sensor is Orthomson AFD4040, the model of the turbidity sensor is Metretolterodine InPro 8100, and the control main board is a Mihua AIMB-501G2 control main board.
The water flow simulation assembly includes: the wave making pumps 10 are arranged in the side wall of the water tank 1 according to the requirements. It should be noted that, the wave-making pumps 10 are respectively disposed in two opposite sets of side walls and are staggered in height; wherein the lowest wave making pump 10 is positioned at a height not lower than the highest position of the molding test area. In other words, three wave-making pumps 10 capable of controlling the water flow speed are arranged on the left and right inner side walls of the water tank 1, the wave-making pumps 10 on the left inner side wall are evenly arranged on the upper half part of the inner side wall, the wave-making pumps 10 on the right inner side wall are evenly arranged on the lower half part of the inner side wall, and the heights of the bottoms of the wave-making pumps 10 are consistent with those of the side wall of the molding test area.
In combination with the above embodiment, for example, the left side wall of the water tank 1 is located at 600mm from the bottom and the right side wall is located at 300mm from the bottom, the center of the bottom of the water tank 1 is provided with a molding test mold area, the size of the molding test mold area is 1000mm x 800mm x 300mm, and the thickness of the left side wall plate and the right side wall plate of the molding test mold is 10mm.
The center of the upper part of the left side wall of the molding test mold area is provided with a water flow sensor 8 and a turbidity sensor 9 for testing underwater anti-dispersion performance, the wave making pump 10, the water flow sensor 8 and the turbidity sensor 9 are all connected with an industrial personal computer, and the bottom of the water tank 1 is provided with three circular water outlets 2. Thus, it further comprises: the touch display screen 4, the power indicator 5 and the power switch 6 are arranged on the outer wall of the box body.
The working principle of the embodiment is as follows: step 1: the water outlet 2 is closed, the blanking funnel 301 is moved to the position right above the molding test die through the cantilever bracket, and the blanking funnel 301 is adjusted up and down to a proper height.
Step 2: filling water into the water tank 1 until the water surface is 100mm away from the top of the water tank 1; the power switch 6 is turned on, the touch screen of the industrial personal computer enters the starting interface, different water flow rates are selected according to research requirements, and the wave making pump 10 is started to enable constant water flow to be generated in the water tank 1.
And 3, injecting the formed concrete into a forming test mold through a blanking funnel 301, displaying an underwater turbidity change curve of the concrete on a touch screen in real time through a signal fed back by a turbidity sensor 9, and testing the underwater dispersion resistance of the concrete.
In summary, the utility model solves the problem that the existing equipment does not have the equipment for testing the underwater anti-dispersion performance of the concrete in the state of simulating the flowing water flow; the concrete feeding device is improved, so that the feeding is simple and is not easy to pour, and the test error is reduced; and the test step is optimized, so that test workload and time are saved for scientific researchers, and the underwater dispersion resistance test precision of the concrete is improved.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (8)

1. Device for testing underwater anti-dispersion performance of concrete in flowing water state, which is characterized by comprising:
The top of the water tank is of an open structure; the bottom of the water tank is provided with a plurality of water outlets;
the blanking assembly is arranged adjacent to the water tank; the output end of the blanking component is operatively positioned in the water tank;
the molding test mold area is arranged at a designated position in the water tank; the molding test mold area is provided with a data acquisition assembly;
the water flow simulation assembly is arranged in the side wall of the water tank.
2. The underwater dispersion resistance test device for concrete in a running water current state according to claim 1, further comprising: the touch display screen, the power indicator lamp and the power switch are arranged on the outer wall of the box body.
3. The underwater concrete dispersion resistance testing device in a running water flow state according to claim 1, wherein the blanking assembly comprises:
The blanking hopper is arranged at the tail end of the mechanical arm; the blanking funnel at least has a selection degree of freedom and a lifting degree of freedom.
4. The apparatus for testing underwater dispersion resistance of concrete in a running water stream according to claim 1, wherein the molding test zone comprises:
Two groups of partition boards with preset heights are arranged in the water tank according to preset intervals; the bottom of the partition board is connected with the bottom of the water tank, the side walls of the partition board are respectively connected with the inner arms corresponding to the water tank, and at least one water outlet is formed in the molding test mold area.
5. The underwater concrete dispersion resistance testing device in a running water flow state according to claim 4, wherein the data acquisition assembly comprises:
A water flow rate sensor and a turbidity sensor which are sequentially installed on one of the partition plates; the output ends of the water flow rate sensor and the turbidity sensor are electrically connected to the control main board.
6. The underwater concrete dispersion resistance testing device in a running water current state according to claim 1, wherein the current simulation assembly comprises:
The wave making pumps are arranged in the side wall of the water tank according to the requirements.
7. The underwater concrete dispersion resistance testing device in a running water current state according to claim 3, wherein the mechanical arm comprises:
the upright post is arranged on one side of the water tank;
the cross arm is rotatably arranged at the top of the upright post;
The sliding table is arranged on the cross arm in a sliding manner;
The vertical arm is connected with the sliding table in a transmission way; the bottom of the vertical arm is provided with a fixed blanking funnel.
8. The device for testing the underwater dispersion resistance of the concrete in the running water flow state according to claim 6, wherein the plurality of wave-making pumps are respectively arranged in two opposite groups of side walls and are staggered in height;
Wherein, the height of the lowest wave-making pump is not lower than the highest position of the molding test area.
CN202322473478.3U 2023-09-12 2023-09-12 Device for testing underwater anti-dispersion performance of concrete under flowing water flow state Active CN221039057U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322473478.3U CN221039057U (en) 2023-09-12 2023-09-12 Device for testing underwater anti-dispersion performance of concrete under flowing water flow state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322473478.3U CN221039057U (en) 2023-09-12 2023-09-12 Device for testing underwater anti-dispersion performance of concrete under flowing water flow state

Publications (1)

Publication Number Publication Date
CN221039057U true CN221039057U (en) 2024-05-28

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ID=91190234

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322473478.3U Active CN221039057U (en) 2023-09-12 2023-09-12 Device for testing underwater anti-dispersion performance of concrete under flowing water flow state

Country Status (1)

Country Link
CN (1) CN221039057U (en)

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