Stirring capacity detection device of concrete mixing truck

Abstract

The utility model discloses a concrete mixing truck stirring capacity detection device which comprises a sinking reservoir, a slope is arranged at the rear end of the upper end of the reservoir, a filtering assembly is arranged at the rear end of the inner wall of the reservoir in a matched mode, and the opening end of the reservoir is covered with a cover plate. A grating plate is detachably connected between the rear end of the cover plate and the rear end of the inner wall of the reservoir, a water suction pump is installed on one side of the slope, a water inlet of the water suction pump communicates with a water inlet pipe, a guide frame is arranged on one side of the water suction pump, a water outlet of the water suction pump communicates with a water outlet pipe, and a temperature measuring assembly is arranged at the end, away from the water suction pump, of the water outlet pipe. The lower end of the temperature measuring assembly is sequentially provided with an electromagnetic valve and a flow meter which are communicated with the temperature measuring assembly, a console is arranged in front of the water suction pump, and a water receiving tank is arranged in front of the console. According to the utility model, the stirring capacity of the mixing drum of the concrete truck can be detected, and water in the mixing drum does not need to be prevented from overflowing deliberately during detection, so that the detection of the stirring capacity is realized.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixer truck capacity detection technology, and in particular to a device for detecting the mixing capacity of a concrete mixer truck. Background Technology

[0002] A concrete mixer truck is a special-purpose transport vehicle used to transport concrete for construction. The mixing capacity of a concrete mixer truck refers to the maximum volume of homogeneous concrete that the truck can transport (based on the volume after compaction). Transportation management departments need an accurate concrete mixer truck mixing capacity, a calibration standard and calibration device for measuring the actual mixing capacity of the mixer truck, in order to guide and implement the calibration of the actual mixing capacity of the mixer truck.

[0003] According to utility model patent CN218614747U, a liquid level detection device for calibrating the mixing capacity of a concrete mixer truck includes a housing. A water inlet is located on one side of the upper part of the housing. A capacitive sensor is located at the bottom of the housing, and the capacitive sensor is connected to two electrode plates located on opposite inner walls of the housing. A rotating seat is located on the outer side of the housing near the water inlet. A vertically rotatable magnet is rotatably connected to the rotating seat. A rotating shaft, rotatably connected to the rotating seat, is located on the side of the magnet near the housing. The rotation of the shaft and the rotating seat is damped. This utility model can automatically detect whether water overflows during the water injection calibration process, eliminating the need for human judgment and reducing errors caused by human intervention.

[0004] While the above technical solution can detect the mixing capacity of a concrete mixer truck, the method of stopping water injection by changing the capacitance of the electrode plates will affect the accuracy of the detection. This is because water must flow between the electrode plates for the capacitance to change, which introduces a certain degree of randomness. Furthermore, the lack of treatment of the outflowing water will cause errors in the detection results. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting the agitation capacity of a concrete mixer truck, which can detect the agitation capacity of the mixing drum of the concrete mixer truck, and does not require deliberately preventing water from overflowing from the mixing drum during the detection, thus realizing the detection of the agitation capacity of the concrete mixer truck.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A concrete mixer truck agitation capacity detection device includes a sunken water storage tank. The rear end of the upper part of the water storage tank has an upward-sloping ramp with an inclination angle of 10°. A support frame is fitted on the inner wall of the water storage tank near its opening. Multiple L-shaped connecting rods, evenly spaced, are fitted between the rear end of the bottom of the support frame and the rear end of the inner wall of the water storage tank. A filter assembly is fitted at the upper end of each connecting rod. The upper end of the support frame is covered with a matching cover plate. A grating plate is detachably connected between the rear end of the cover plate and the rear end of the inner wall of the water storage tank, above the filter assembly.

[0008] A water pump is installed on one side of the slope. The inlet of the water pump is connected to an inlet pipe that extends into the water storage tank and is located near its bottom. An L-shaped guide frame is provided on one side of the water pump. The outlet of the water pump is connected to an outlet pipe fixed on the guide frame. A temperature measuring component is provided at the end of the outlet pipe away from the water pump. A solenoid valve and a flow meter are installed in sequence at the lower end of the temperature measuring component and are connected to it. A control console is provided in front of the water pump. A water receiving tank is placed in front of the control console. A control valve is installed on the lower side of one side of the outer wall of the water receiving tank and is connected to it. The water pump, the temperature measuring component, the solenoid valve, and the flow meter are all electrically connected to the control console.

[0009] By adopting the above technical solution, when using the concrete mixer truck to be tested, drive it onto the slope, position the truck head towards the top of the slope, rotate the guide frame, then place the end of the water outlet pipe away from the water pump into the feed chute of the concrete mixer truck and fix it, then place the water tank under the movable unloading chute of the concrete mixer truck and fix it, turn on the drive device of the mixer truck to make the mixing drum rotate in the feeding direction, then operate the control panel to make the water pump work. The water pump draws water from the water storage tank through the water inlet pipe and then injects water into the mixing drum through the water outlet pipe until it overflows. During this process, the temperature measuring component will detect the temperature of the water, and the flow meter will monitor the amount of water flowing into the concrete mixer truck.

[0010] When water overflows from the mixing drum, the solenoid valve and water pump are closed to stop water injection. The overflowing water will flow into the receiving tank. After the water in the unloading chute is dripping, wait for a while and use a thermometer to measure the temperature of the water in the receiving tank. Then, open the control valve to transfer the water in the tank to the standard measuring cylinder to measure the amount of water. Then, calculate the amount of water in the mixing drum and the receiving tank based on the current water temperature and quantity. Then, subtract the amount of water in the receiving tank from the amount of water in the mixing drum to obtain the actual stirring capacity of the mixing drum. Then, reverse the mixing drum to pour out the water, which flows down the slope into the filter components in the water storage tank to achieve water recycling.

[0011] A further feature of this invention is that a fixing groove is provided at the upper end of the outer wall of the slope near its lower end, and a baffle that can rotate up and down is rotatably connected to the upper part of the front end of the inner wall of the fixing groove.

[0012] By adopting the above technical solution, the tires of concrete mixer trucks parked on the slope can be blocked, preventing the vehicles from sliding during inspection.

[0013] A further feature of this invention is that the filter assembly includes a permeation frame with an opening at the top, a filter cloth disposed on the inner wall of the permeation frame, and a filter layer disposed within the filter cloth and close to the upper end of the inner wall of the permeation frame.

[0014] By adopting the above technical solution, the used water can be filtered before flowing into the storage tank, which reduces water pollution and also reduces the impact on the test results.

[0015] A further feature of this invention is that the guide frame includes a column, a bearing rod rotatably connected to the upper end of the outer wall of the column, and several fixing rings disposed at the lower end of the bearing rod.

[0016] By adopting the above technical solution, the water outlet pipe can be suspended at a high place, which is convenient to use and does not take up space. It also prevents components such as the flow meter from contacting the ground and causing damage after use.

[0017] A further feature of this invention is that the temperature measuring component includes a fixed tube, a positioning tube that is inclined upward and outwardly disposed on one side of the outer wall of the fixed tube and communicates with it, and a temperature sensor installed inside the positioning tube and detachably connected thereto, the lower end of the temperature sensor extending into the fixed tube.

[0018] In summary, this utility model has the following beneficial effects:

[0019] Firstly, this utility model can detect the mixing capacity of the mixing drum of a concrete transport truck, and there is no need to deliberately prevent the water in the mixing drum from overflowing during the test, thus realizing the detection of the mixing capacity of the concrete mixer truck.

[0020] Secondly, the filter component of this utility model not only allows the water flowing back into the storage tank to be recycled, but also reduces the residue of impurities and other pollutants in the water, thereby reducing the impact on the test results;

[0021] Thirdly, the guide frame of this utility model can suspend the water outlet pipe at a high place, which is convenient to use and does not take up space. It also prevents components such as the flow meter from contacting the ground and causing damage after use. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 It is mainly used to show the positional connection relationship of each component;

[0024] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the temperature measuring component of this utility model.

[0026] In the diagram: 1. Water storage tank; 11. Slope; 12. Support frame; 13. Connecting rod; 14. Filter assembly; 15. Water seepage frame; 16. Filter cloth; 17. Filter layer; 18. Cover plate; 19. Grating plate; 2. Fixing groove; 21. Baffle; 22. Water pump; 23. Inlet pipe; 24. Guide frame; 25. Column; 26. Bearing rod; 27. Fixing ring; 28. Outlet pipe; 29. ​​Temperature measuring assembly; 3. Fixing pipe; 31. Positioning pipe; 32. Temperature sensor; 33. Solenoid valve; 34. Flow meter; 35. Control console; 36. Water receiving tank; 37. Control valve. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example, refer to Figure 1-4A device for detecting the mixing capacity of a concrete mixer truck includes a sunken water storage tank 1. A ramp 11, sloping upwards from front to back, is located at the rear end of the upper part of the water storage tank 1. The ramp 11 has an inclination angle of 10°. A fixing groove 2 is formed downwards on the upper part of the outer wall of the ramp 11 near its lower end. A baffle 21, rotatable and designed to prevent the vehicle from sliding down, is rotatably connected to the upper part of the front end of the inner wall of the fixing groove 2. A support frame 12 is fitted on the inner wall of the water storage tank 1 near its opening. The rear of the support frame 12... A gap is left between the end of the support frame 12 and the rear end of the water storage tank 1. Multiple connecting rods 13 are arranged in an L-shape and are evenly distributed between the rear end of the bottom of the support frame 12 and the inner wall of the rear end of the water storage tank 1. A filter assembly 14 is provided at the upper end of the connecting rod 13. The filter assembly 14 includes a seepage frame 15 with an open upper end, a filter cloth 16 that is installed on the inner wall of the seepage frame 15, and a filter layer 17 composed of a pebble layer, a small stone layer, a coarse sand layer and a fine sand layer arranged from bottom to top in the filter cloth 16 and close to the upper end of the inner wall of the seepage frame 15.

[0030] The upper end of the support frame 12 is covered with a matching cover plate 18. The rear end of the cover plate 18 is detachably connected to the rear end of the inner wall of the water storage tank 1 above the filter assembly 14 with a grid plate 19. The cover plate 18 and the grid plate 19 are both on the same plane as the opening end of the water storage tank 1. A water pump 22 is installed on one side of the slope 11. The inlet of the water pump 22 is connected to an inlet pipe 23 that extends into the water storage tank 1 and is located near its bottom. An L-shaped guide frame 24 is provided on one side of the water pump 22. The guide frame 24 includes a column 25, a bearing rod 26 rotatably connected to the upper end of the outer wall of the column 25, and several fixing rings 27 located at the lower end of the bearing rod 26.

[0031] The outlet of the water pump 22 is connected to a water outlet pipe 28 that passes through the fixing ring 27 and is set downwards. At the end of the water outlet pipe 28 away from the water pump 22, there is a temperature measuring component 29 connected to it. The temperature measuring component 29 includes a fixing pipe 3, a positioning pipe 31 that is inclined upwards and outwards and is set on one side of the outer wall of the fixing pipe 3 and connected to it, and a temperature sensor 32 installed in the positioning pipe 31 and detachably connected to it. The lower end of the temperature sensor 32 extends into the fixing pipe 3. A solenoid valve 33 and a flow meter 34 are installed in sequence at the lower end of the fixing pipe 3 and are connected to it. A control console 35 is set in front of the water pump 22. A water receiving tank 36 with an open top is placed in front of the control console 35. A control valve 37 is installed on the lower side of the outer wall of the water receiving tank 36 and is connected to it. The water pump 22, temperature sensor 32, solenoid valve 33 and flow meter 34 are all electrically connected to the control console 35.

[0032] Instructions for use: When using, drive the concrete mixer truck to be tested onto the slope 11, with the front of the truck facing the top of the slope. Then, rotate the baffle 21 upwards so that it extends out of the fixing groove 2 and contacts the outer wall of the truck's tires. Next, place the pad into the fixing groove 2 to hold the baffle 21 in place and prevent it from rotating downwards. Then, pull the water outlet pipe 28 to rotate the guide frame 24. The water outlet pipe 28 drives the bearing rod 26 to rotate on the column 25 through the fixing ring 27. Then, put the end of the water outlet pipe 28 away from the water pump 22 into the feed hopper of the concrete mixer truck and fix it. Then, place the water receiving tank 36 under the movable unloading chute of the concrete mixer truck and fix it. Turn on the drive device of the mixer truck to make the mixing drum rotate in the feeding direction. Then, operate the control panel 35 to make the water pump 22 work. The water pump 22 draws water from the water storage tank 1 through the water inlet pipe 23 and then injects water into the mixing drum through the water outlet pipe 28 until it overflows.

[0033] During this process, the temperature measuring component 29 detects the temperature of the water. Since the temperature sensor 32 on the positioning tube 31 is inclined and extends into the fixed tube 3, the impact of the water flow will not affect the temperature sensor 32 or its normal operation. The flow meter 34 monitors the amount of water flowing into the concrete mixer truck. When water overflows from the mixing drum, the solenoid valve 33 and the water pump 22 are closed to stop water injection. The overflowing water will flow into the water receiving tank 36. After the water in the unloading chute is in a dripping state, wait for a period of time, and then use a thermometer to measure the temperature of the water in the water receiving tank 36. Then, open the control valve 37 to transfer the water in the water receiving tank 36 to the standard measuring cylinder to detect the amount of water. Then, calculate the amount of water in the mixing drum and the water receiving tank 36 based on the current water temperature and quantity.

[0034] Then, the actual stirring capacity of the mixing drum is obtained by subtracting the amount of water in the water tank 36 from the amount of water in the mixing drum. Then, the mixing drum is reversed to pour out the water, which flows down the slope 11 into the filter assembly 14 below the grid plate 19. After filtration, the water flows into the water storage tank 1 to achieve water recycling. The connecting rod 13 can ensure the stability of the filter assembly 14 during operation. When the water is filtered, it first passes through the filter layer 17, leaving large particles of impurities on the surface. The filter cloth 16 can not only prevent the filter layer 17 from flowing out with the water, but also leave fine particles of impurities in the seepage frame 15 to improve the cleanliness of the water. Then, the baffle 21 is restored to its initial state, and the concrete mixer truck can be driven down the slope 11. When the vehicle passes over the cover plate 18, the support frame 12 can provide good support for the cover plate 18 to ensure that the vehicle can pass smoothly and safely.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that make creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A device for detecting the mixing capacity of a concrete mixer truck, comprising a sunken water storage tank (1), characterized in that: The upper rear end of the water storage tank (1) is provided with a ramp (11) that slopes upward from front to back. The slope (11) has an inclination angle of 10°. A support frame (12) is provided on the inner wall of the water storage tank (1) near its opening end. Multiple connecting rods (13) are arranged in an L-shape and are evenly distributed between the rear end of the bottom of the support frame (12) and the inner wall of the rear end of the water storage tank (1). A filter assembly (14) is provided on the upper end of the connecting rods (13). The upper end of the support frame (12) is covered with a cover plate (18) that matches it. A grid plate (19) is detachably connected between the rear end of the cover plate (18) and the rear end of the inner wall of the water storage tank (1) above the filter assembly (14). A water pump (22) is installed on one side of the slope (11). The inlet of the water pump (22) is connected to an inlet pipe (23) that extends into the water storage tank (1) and is located near its bottom. An L-shaped guide frame (24) is provided on one side of the water pump (22). The outlet of the water pump (22) is connected to an outlet pipe (28) fixed on the guide frame (24). A temperature measuring component (29) is provided at the end of the outlet pipe (28) away from the water pump (22) and is connected to it. The lower end of the temperature measuring component (29) is sequentially equipped with a solenoid valve (33) and a flow meter (34) that are all connected to it. A control console (35) is provided in front of the water pump (22). A water receiving tank (36) is placed in front of the control console (35). A control valve (37) connected to the water receiving tank (36) is installed on the lower side of one side of the outer wall of the water receiving tank (36). The water pump (22), the temperature measuring component (29), the solenoid valve (33) and the flow meter (34) are all electrically connected to the control console (35).

2. The device for detecting the mixing capacity of a concrete mixer truck according to claim 1, characterized in that: A fixing groove (2) is provided on the upper end of the outer wall of the slope (11) near its lower end. A baffle (21) that can rotate up and down is rotatably connected to the upper part of the front end of the inner wall of the fixing groove (2).

3. The device for detecting the mixing capacity of a concrete mixer truck according to claim 1, characterized in that: The filter assembly (14) includes a permeation frame (15) with an opening at the top, a filter cloth (16) disposed in conjunction with the inner wall of the permeation frame (15), and a filter layer (17) disposed in the filter cloth (16) and close to the upper end of the inner wall of the permeation frame (15).

4. The device for detecting the mixing capacity of a concrete mixer truck according to claim 1, characterized in that: The guide frame (24) includes a column (25), a support rod (26) rotatably connected to the upper end of the outer wall of the column (25), and a plurality of fixing rings (27) disposed at the lower end of the support rod (26).

5. The device for detecting the mixing capacity of a concrete mixer truck according to claim 1, characterized in that: The temperature measuring component (29) includes a fixed tube (3), a positioning tube (31) that is inclined upward and outward and is disposed on one side of the outer wall of the fixed tube (3) and communicates with it, and a temperature sensor (32) installed in the positioning tube (31) and detachably connected thereto, the lower end of the temperature sensor (32) extending into the fixed tube (3).

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