Concrete stirring device

Abstract

The utility model discloses a concrete mixing device which comprises an automobile chassis and a mixing drum, an annular plate is arranged at the tail of the mixing drum, a supporting frame is arranged below the annular plate, a base is arranged below the supporting frame, the base is installed on the automobile chassis, a gap is reserved between the base and the supporting frame, and the annular plate is arranged at the tail of the mixing drum. A pressure sensor is arranged at the gap; according to the utility model, the pressure sensor is arranged, so that the pressure applied to the pressure sensor by the mixing drum can be monitored in real time, and the pressure applied when the mixing drum is unloaded before the device is put into use is used as comparison data, so that other data can be compared with the comparison data after the device is put into use; if concrete is stored in the mixing drum, after data comparison, the alarm device of the device works until the concrete is removed.

Description

Technical Field

[0001] The utility model relates to the field of concrete mixer trucks, and specifically relates to a concrete mixing device. Background Technique

[0002] At present, in infrastructure construction and building construction, ultra-high performance concrete (referred to as UHPC for short) is usually used to enhance the strength, wear resistance, corrosion resistance and other properties of facilities and buildings, and the ultra-high performance concrete used is purchased from concrete manufacturing plants. Because concrete plants have high concrete production efficiency, they can meet the needs of large-area concrete pouring.

[0003] Due to the relatively serious pollution of concrete plants, most of them are set up in areas far from cities. After the concrete is produced in the concrete plant, it is necessary to use a concrete mixer truck to transport the concrete to the construction site. In order to prevent the concrete from solidifying during transportation, the mixing drum of the concrete mixer truck needs to rotate to force the concrete to be stirred, so as to keep the quality of the concrete uniform and prevent bleeding, stratification, segregation and early setting.

[0004] At present, a concrete mixer truck includes a chassis, a mixing drum, a power take-off device, a hydraulic system, a speed reducer, a mixing drum, a control mechanism, a cleaning system, etc. The power of the vehicle chassis is taken out through the power take-off device, and the variable pump of the hydraulic system is driven to convert mechanical energy into hydraulic energy and transmit it to the fixed-displacement motor. The motor then drives the speed reducer, and the speed reducer drives the mixing device to mix the concrete. For example, a concrete mixer truck disclosed in a Chinese patent with the patent number CN201420389822.9 includes an automobile chassis, a mixing drum, and a driving device for providing power to the mixing drum; the mixing drum and the driving device are arranged on the automobile chassis, and the driving device is arranged at the front end of the mixing drum; the mixing drum includes a tank body, a first mixing blade, a second mixing blade, and a third mixing blade; the overall structure of the tank body is in a horn shape; the first mixing blade, the second mixing blade, and the third mixing blade are fixedly connected to the inner wall of the tank body; the second mixing blade is arranged between the first mixing blade and the third mixing blade; the first mixing blade and the third mixing blade are spiral ribbon mixing blades, and the second mixing blade is a solid mixing blade. The beneficial effects of the utility model are as follows: the overall structure of the tank body is in a horn shape, which prevents the concrete in the tank body from flowing out and saves the materials of the overall structure at the same time; by arranging the second mixing blade between the first mixing blade and the third mixing blade, and the second mixing blade being a solid mixing blade, it is beneficial to increase the discharging force of the entire mixing drum.

[0005] Although the above concrete mixer truck provides great convenience for the transportation of concrete, it often happens that after the concrete mixer truck stops working, the staff forget to clean and dump the concrete inside the mixing drum and stop the rotation of the mixing drum. When using the concrete mixer truck the next day, the staff need to hold a percussion drill and spend a long time cleaning the solidified concrete bit by bit, which seriously affects the use of the concrete mixer truck and increases the use cost of the concrete mixer truck. In addition, the strength of ultra-high performance concrete is relatively high, so the difficulty of cleaning the concrete in the mixing drum is increased. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a concrete mixing device, aiming to improve the problem that the concrete solidifies in the mixing drum due to the lack of a reminder structure and the negligence of the staff in the concrete mixer truck.

[0007] The utility model is realized as follows: a concrete mixing device includes a vehicle chassis and a mixing drum. A circular plate is arranged at the tail of the mixing drum, a supporting frame is arranged below the circular plate, a base is arranged below the supporting frame, the base is installed on the vehicle chassis and there is a gap between the base and the supporting frame, and a pressure sensor is arranged at this gap.

[0008] Preferably, the supporting frame includes a U-shaped frame, two connecting plates and two supporting wheels. The two connecting plates are both hinged to the inner side of the U-shaped frame, and the two supporting wheels are both arranged between the two connecting plates.

[0009] Preferably, the supporting plate is arranged in a frustum structure, and an annular groove is arranged on the side wall, and the edge of the circular plate extends into the annular groove.

[0010] Preferably, the base is arranged as a first base, and four first pressure sensors are arranged above the first base, and the four first pressure sensors are respectively arranged at the end corners of the first base.

[0011] Preferably, a first limiting rod is fixedly arranged above the first base, a first nut is threadedly sleeved on the top of the first limiting rod, and a first spring is arranged below the first nut; a first through hole is arranged at the bottom of the U-shaped frame, the first limiting rod passes through the first through hole, and the lower end of the first spring abuts against the bottom of the U-shaped frame.

[0012] Preferably, the base is arranged as a second base, a second pressure sensor and a second limiting rod are arranged above the second base, the second limiting rod is arranged between the two second pressure sensors, and the two second pressure sensors are respectively arranged at both ends of the second base. A second nut is threadedly sleeved on the top of the second limiting rod, and a second spring is arranged below the second nut.

[0013] Preferably, a common connection plate is provided between the two frames, a second through hole is provided on the common connection plate, a second limiting rod is provided through the second through hole, and a lower end of the second spring is provided to press against the common connection plate.

[0014] Preferably, the second base includes a middle plate and two end plates. The middle plate is arranged as an H-shaped structure and a rotating rod is arranged through it. Threaded structures are arranged at both ends of the rotating rod. A snap plate is arranged on the middle plate and snap grooves are arranged on the end plates. The end plates are inserted into the middle plate and the snap plates are located in the snap grooves.

[0015] Preferably, a mounting groove is provided on the middle plate, and a filling plate is provided at the mounting groove, the rotating rod passes through the space formed by the mounting groove and the filling plate, and a convex column is provided at the position of the rotating rod in the space; a polygonal groove is provided on the end face of the rotating rod, and a perforation is provided on the end plate, the perforation is provided opposite to the polygonal groove, and the cross-section of the perforation is larger than the cross-section of the polygonal groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a pressure sensor, which can monitor the pressure applied by the mixing drum in real time, and use the pressure applied by the mixing drum when it is unloaded before the device is put into use as comparison data, so that after it is put into use, other data can be compared with the comparison data; if there is concrete in the mixing drum, after the data is compared, the alarm device of the device will work until the concrete is cleared, effectively reminding the staff to clean the concrete in the mixing drum in time to avoid the concrete solidifying in the mixing drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 It is a partial structural diagram of the material storage pipe of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the support frame and the first base of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first support frame of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first base of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the support frame and the second base of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the second support frame of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the first second base of the utility model;

[0025] Figure 9 is a schematic structural view of the second part of the second base of the present utility model;

[0026] Figure 10 is a schematic structural view of the middle plate of the present utility model.

[0027] In the figure: 1, mixing drum; 11, annular plate; 2, supporting frame; 21, C-shaped frame; 22, connecting plate; 23, supporting wheel; 24, annular groove; 25, first through hole; 26, common connecting plate; 27, second through hole; 3, first base; 31, first pressure sensor; 32, first limiting rod; 33, first spring; 34, first nut; 4, second base; 41, second limiting rod; 42, second pressure sensor; 43, second nut; 44, second spring; 45, middle plate; 451, rotating rod; 452, buckle plate; 453, installation groove; 454, thread structure; 455, convex column; 456, filling plate; 46, end plate; 461, through hole; 462, buckle groove. Detailed implementation manners

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] The following will be further described in conjunction with the drawings and specific embodiments:

[0030] Embodiment 1

[0031] As described in the background art, if the concrete in the concrete mixing and transporting vehicle is not cleaned and left for a long time, it is necessary for the staff to hold a percussion drill and spend a long time cleaning the solidified concrete, which affects the use of the concrete mixing and transporting vehicle and increases its use cost. For ultra-high-performance concrete, if its concrete is in the concrete mixing and transporting vehicle, it will increase the cleaning difficulty. To solve the above problems, this embodiment adds some structures on the basis of the existing concrete mixing and transporting vehicle so as to be able to remind the staff that the concrete in the concrete mixing and transporting vehicle has not been cleaned. The specific technical solution is as follows.

[0032] Such as Figure 1 、 Figure 2As shown in the figure, the existing concrete mixing and transporting truck mainly includes an automotive chassis, a mixing drum 1, and a driving device. The mixing drum 1 and the driving device are both arranged on the automotive chassis, and the driving device is arranged at the front end of the mixing drum 1 and can drive the mixing drum 1 to rotate. Mixing blades are arranged inside the mixing drum 1. Under the action of the mixing blades, the concrete in the mixing drum 1 can be tumbled, mixed, and stirred to prevent it from solidifying. An annular plate 11 is arranged at the tail of the mixing drum 1, and a supporting frame 2 is arranged below the annular plate 11. The supporting frame 2 is installed on the automotive chassis, thereby stably supporting the tail of the mixing drum 1 and providing support for the rotation of the mixing drum 1. Since the concrete mixing and transporting truck is a prior art, there is no need to spend too much space describing the concrete mixing and transporting truck here. Readers can query the existing concrete mixing and transporting truck materials to know its specific structure.

[0033] As Figure 1 , Figure 2 shown, in order to be able to remind the staff that there is concrete in the mixing drum 1, a base is arranged below the supporting frame 2. The base is installed on the automotive chassis and there is a gap between the base and the supporting frame 2. A pressure sensor is arranged at this gap. The pressure sensor is connected to the central control system of the concrete mixing and transporting truck through a wire. Since the concrete mixing and transporting vehicle is a prior art, its central control system has also been made public and perfected, and it includes various vehicle controllers such as a central console and a control panel. After the device is produced, it is necessary to initially measure the data when there is no concrete loaded in the mixing drum 1 through the pressure sensor and input this data into the controller of the central control system. This data is used as a comparison data, and this comparison data can also be adjusted after being put into use to meet actual requirements. When the device is put into use, that is, when there is concrete loaded in the mixing drum 1, the data monitored by the pressure sensor is transmitted to the central control system. The controller of the central control system compares this data with the comparison data. As long as this data is greater than the comparison data, the alarm device in the central control system will keep working. In this way, the reminder function can be realized. The alarm method of the alarm device can start a sound and light alarm or automatically dial a set of multiple alarm phones.

[0034] As Figure 4 shown, in order to be able to stably support the mixing drum 1 through the supporting frame 2, the supporting frame 2 includes a C-shaped frame 21, two connecting plates 22, and two supporting wheels 23. The two connecting plates 22 are both hinged to the inside of the C-shaped frame 21, and the two supporting wheels 23 are both arranged between the two connecting plates 22. The supporting wheels 23 are set as a frustum structure, and an annular groove 24 is arranged on the side wall. The edge of the annular plate 11 extends into the annular groove 24. Therefore, under the action of the supporting wheels 23, the mixing drum 1 can be stably installed and at the same time does not affect the rotation of the mixing drum 1.

[0035] As Figure 3 , Figure 5As shown in the figure, in order to stably connect the support frame 2 to the base without affecting the operation of the pressure sensor, the base is set as the first base 3. Four first pressure sensors 31 are arranged above the first base 3, and the four first pressure sensors 31 are respectively arranged at the end corners of the first base 3. In addition, a first limiting rod 32 is fixedly arranged above the first base 3. A first nut 34 is threadedly sleeved on the top of the first limiting rod 32, and a first spring 33 in a compressed state is arranged below the first nut 34. At the same time, a first through hole 25 is arranged at the bottom of the C-shaped frame 21. The first limiting rod 32 passes through the first through hole 25, and the lower end of the first spring 33 presses against the bottom of the C-shaped frame 21. Under the action of the self-gravity of the mixing drum 1, the support frame 2 can be stably supported on multiple first pressure sensors 31. In addition, with the cooperation of the first nut 34, the support frame 2 can be restricted to be stably installed on the first base 3.

[0036] Embodiment 2

[0037] As described in the background art, if the concrete in the concrete mixing and transporting vehicle is not cleaned and left for a long time, it is necessary for the staff to hold a percussion drill and spend a long time cleaning the solidified concrete, which affects the use of the concrete mixing and transporting vehicle and increases its use cost. For ultra-high-performance concrete, if its concrete is in the concrete mixing and transporting vehicle, it will increase the difficulty of cleaning. To solve the above problems, this embodiment adds some structures on the basis of the existing concrete mixing and transporting vehicle so as to be able to remind the staff that the concrete in the concrete mixing and transporting vehicle has not been cleaned. The specific technical solution is as follows.

[0038] As Figure 1 、 Figure 2 As shown in the figure, the existing concrete mixing and transporting vehicle mainly includes an automobile chassis, a mixing drum 1, and a driving device. The mixing drum 1 and the driving device are both arranged on the automobile chassis, and the driving device is arranged at the front end of the mixing drum 1 and can drive the mixing drum 1 to rotate. Stirring blades are arranged inside the mixing drum 1. Under the action of the stirring blades, the concrete in the mixing drum 1 can be tumbled and mixed to prevent it from solidifying. An annular plate 11 is arranged at the tail of the mixing drum 1, and a support frame 2 is arranged below the annular plate 11. The support frame 2 is installed on the automobile chassis, and then the tail of the mixing drum 1 is stably placed and provides support for the rotation of the mixing drum 1. Since the concrete mixing and transporting vehicle is a prior art, there is no need to spend too much space describing the concrete mixing and transporting vehicle here. Readers can query the existing concrete mixing and transporting vehicle materials to know its specific structure.

[0039] As Figure 1 、 Figure 2As shown in the figure, in order to be able to remind the staff that there is concrete in the mixing drum 1, a base is provided below the supporting frame 2. The base is installed on the vehicle chassis and there is a gap between the base and the supporting frame 2. A pressure sensor is provided at this gap. The pressure sensor is connected to the central control system of the concrete mixing and transporting vehicle through a wire. Since the concrete mixing and transporting vehicle is a prior art, its central control system has also been made public and perfected, and it includes various vehicle controllers such as a central console and a control panel. After the device is produced, it is necessary to initially measure the data when there is no concrete loaded in the mixing drum 1 through the pressure sensor, and input this data into the controller of the central control system. This data is used as the comparison data, and this comparison data can also be adjusted after being put into use to meet the actual requirements. When the device is put into use, that is, when there is concrete loaded in the mixing drum 1, the data monitored by the pressure sensor is transmitted to the central control system. The controller of the central control system compares this data with the comparison data. As long as this data is greater than the comparison data, the alarm device in the central control system will keep working. In this way, the reminder function can be realized. The alarm method of the alarm device can activate the sound and light alarm or automatically dial a set of multiple alarm phone numbers.

[0040] As Figure 4 shown in the figure, in order to be able to stably support the mixing drum 1 through the supporting frame 2, the supporting frame 2 includes a C-shaped frame 21, two connecting plates 22 and two supporting wheels 23. The two connecting plates 22 are both hinged to the inner side of the C-shaped frame 21. The two supporting wheels 23 are both arranged between the two connecting plates 22. The supporting wheels 23 are set as frustum structures, and an annular groove 24 is provided on the side wall. The edge of the annular plate 11 extends into the annular groove 24. Therefore, under the action of the supporting wheels 23, the mixing drum 1 can be stably installed and at the same time does not affect the rotation of the mixing drum 1.

[0041] As Figure 6 、 Figure 7 、 Figure 8 shown in the figure, in order to stably connect the supporting frame 2 to the base, the base is set as the second base 4. A second pressure sensor 42 and a second limiting rod 41 are provided above the second base 4. The second limiting rod 41 is arranged between the two second pressure sensors 42, and the two second pressure sensors 42 are respectively arranged at both ends of the second base 4. A second nut 43 is threadedly sleeved on the top of the second limiting rod 41. A second spring 44 in a compressed state is provided below the second nut 43. A common connecting plate 26 is provided between the two C-shaped frames 21. A second through hole 27 is provided on the common connecting plate 26. The second limiting rod 41 passes through the second through hole 27. The lower end of the second spring 44 abuts against the common connecting plate 26. This setting uses fewer pressure sensors compared with the previous embodiment, and the corresponding failure rate and cost are reduced.

[0042] Embodiment 3

[0043] As Figure 9 、Figure 10 As shown, on the basis of Embodiment 2, in order to enable the second base 4 to adapt to the second supporting frames 2 with different spacings, the second base 4 includes an intermediate plate 45 and two end plates 46. The intermediate plate 45 is arranged in an H-shaped structure. A snap plate 452 is provided on the intermediate plate 45. An installation groove 453 is provided on the intermediate plate 45, and a filling plate 456 is detachably provided at the installation groove 453. A rotating rod 451 is penetrated through the space formed by the installation groove 453 and the filling plate 456. A convex column 455 is provided at the position of the rotating rod 451 in this space. Threaded structures 454 are provided at both ends of the rotating rod 451. A polygonal groove is provided on the end face of the rotating rod 451. A snap groove 462 and a through hole 461 are provided on the end plate 46. A threaded groove is communicated with the end of the through hole 461 adjacent to the convex column 455. The end plate 46 is inserted into the intermediate plate 45, and the snap plate 452 is located in the snap groove 462. The end of the rotating rod 451 is threadedly inserted into the threaded groove, that is, the threaded structure 454 of the rotating rod 451 meshes with the threaded groove to realize the threaded connection between the end of the rotating rod 451 and the end plate 46. The through hole 461 is arranged opposite to the polygonal groove, and the cross section is larger than that of the polygonal groove. The staff can hold a polygonal wrench and extend it into the through hole 461, and the end is inserted into the polygonal groove, so as to control the rotation of the rotating rod 451, force the two end plates 46 to move relatively, adjust the length of the second base 4, and thus enable the second base 4 to adapt to different installation environments and the second supporting frames 2 with different spacings. The filling plate 456 is detachably provided, which facilitates the replacement of the rotating rod 451 according to requirements, and at the same time cooperates with the installation groove 453 to stably install the rotating rod 451.

[0044] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete mixing device, comprising a vehicle chassis and a mixing drum (1), characterized in that: An annular plate (11) is arranged at the rear of the mixing drum (1), a supporting frame (2) is arranged below the annular plate (11), a base is arranged below the supporting frame (2), the base is mounted on the chassis of an automobile, and a gap is left between the base and the supporting frame (2), and a pressure sensor is arranged at the gap.

2. A concrete mixing device according to claim 1, characterized in that: The supporting frame (2) comprises a frame (21), two connecting plates (22) and two supporting wheels (23), the two connecting plates (22) are both hingedly provided on the inner side of the frame (21), and the two supporting wheels (23) are both provided between the two connecting plates (22).

3. A concrete mixing device according to claim 2, characterized in that: The supporting wheel (23) is configured as a frustum structure, and an annular groove (24) is provided on the side wall, and the edge of the annular plate (11) extends into the annular groove (24).

4. A concrete mixing device according to claim 3, characterized in that: The base is configured as a first base (3), and four first pressure sensors (31) are arranged above the first base (3). The four first pressure sensors (31) are respectively arranged at the end corners of the first base (3).

5. A concrete mixing device according to claim 4, characterized in that: A first limiting rod (32) is fixedly arranged above the first base (3), a first nut (34) is threadedly sleeved on the top of the first limiting rod (32), and a first spring (33) is arranged below the first nut (34); a first through hole (25) is arranged at the bottom of the frame (21), the first limiting rod (32) passes through the first through hole (25), and the lower end of the first spring (33) is arranged to press against the bottom of the frame (21).

6. A concrete mixing device according to claim 3, characterized in that: The base is configured as a second base (4); a second pressure sensor (42) and a second limiting rod (41) are provided above the second base (4); the second limiting rod (41) is provided between the two second pressure sensors (42), and the two second pressure sensors (42) are provided at two ends of the second base (4), respectively; a second nut (43) is provided on a top threaded sleeve of the second limiting rod (41), and a second spring (44) is provided below the second nut (43).

7. A concrete mixing device according to claim 6, characterized in that: A common plate (26) is arranged between the two frames (21), a second through hole (27) is arranged on the common plate (26), the second limiting rod (41) passes through the second through hole (27), and the lower end of the second spring (44) is pressed against the common plate (26).

8. A concrete mixing device according to claim 7, characterized in that: The second base (4) comprises an intermediate plate (45) and two end plates (46); the intermediate plate (45) is arranged in an H-shaped structure and is provided with a rotating rod (451) running through it; threaded structures (454) are provided at both ends of the rotating rod (451); a snap plate (452) is provided on the intermediate plate (45); a snap groove (462) is provided on the end plate (46); the end plate (46) is inserted into the intermediate plate (45); the snap plate (452) is located in the snap groove (462); and the end of the rotating rod (451) is threadedly inserted into the thread groove of the end plate (46).

9. A concrete mixing device according to claim 8, characterized in that: The intermediate plate (45) is provided with a mounting groove (453), and a filling plate (456) is provided at the mounting groove (453); the rotating rod (451) passes through the space formed by the mounting groove (453) and the filling plate (456), and a convex column (455) is provided at the position where the rotating rod (451) is located in the space; the end face of the rotating rod (451) is provided with a polygonal groove, and a through hole (461) is provided on the end plate (46); the through hole (461) is communicated with the thread groove and is arranged opposite to the polygonal groove, and the cross section of the through hole (461) is larger than the cross section of the polygonal groove.

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