Method for operating and self-resetting an outdoor operating device of a mixer truck

Abstract

The application relates to an outdoor operation device of a mixer truck, which comprises a vehicle body, a cab mounted on the vehicle body and a mixing tank, a main control module is arranged in the cab, the vehicle body is provided with an engine, an upper loading system and an outdoor operation module which are electrically connected with the main control module, the upper loading system comprises a driving motor, a BMS and a battery pack, a generator and a controller, the driving motor is used for driving the rotation of the mixing tank, the main control module can control the upper loading system or enable the outdoor operation module to control the upper loading system. The application can detect the running state of the main control module and the outdoor operation module in real time, change different control modes according to the state information of the two, conveniently adjust the rotation state of the mixing tank by outdoor operation of the user, and automatically and quickly reset the initial state of the mixing tank.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concrete mixers, in particular, and particularly relates to a method for operating and self-resetting an outdoor operating device of a mixer. BACKGROUND

[0002] In an upper loading system of an electrically powered concrete mixer, in order to reduce weight and electrification, the outdoor operating device cannot use a mechanical linkage device as in a traditional vehicle; common ones are buttons, knobs, and simple handle devices; although the operation of buttons, knobs, etc. can realize the synchronization of the operating device in the cab and the outdoor operating device, the operation is complex, and if the unloading worker is not skilled, it will cause market complaints; a single handle device is consistent with the traditional operation method, but cannot be automatically reset or cannot be positioned, and the unloading worker must always press, and after releasing the hand, it is automatically reset, which will cause misunderstanding when the unloading worker operates or sudden movement after use, affecting the safety of operation, or long-time pressing operation causing fatigue. SUMMARY

[0003] Therefore, the present application provides a method for operating and self-resetting an outdoor operating device of a mixer, which is simple to operate and can be automatically reset.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] An outdoor operating device of a mixer, comprising a vehicle body, a cab mounted on the vehicle body, and a mixing tank, wherein a main control module is arranged in the cab, the vehicle body is provided with an engine, an upper loading system, and an outdoor operating module electrically connected with the main control module and the upper loading system and the main control module, the upper loading system comprises a driving motor, a BMS and a battery pack, a generator, and a controller; the driving motor is used to drive the rotation of the mixing tank, the main control module can control the upper loading system, or enable the outdoor operating module so that the outdoor operating module can control the upper loading system.

[0006] After the above-mentioned outdoor operating device of a mixer is powered on, the user can control the upper loading system to perform feeding, discharging, and stopping rotation through the operation of the main control module, in the upper loading system, the generator generates power for the BMS and the battery pack, the BMS and the battery pack supply power for the driving motor, the driving motor drives the mixing tank to rotate, and the controller serves as a control center to control the operation of the upper loading system. The main control module can independently control the upper loading system, or enable the outdoor operating module so that the outdoor operating module can also control the upper loading system, so that the user can operate outdoors, thereby facilitating the observation of the working state of the upper loading system.

[0007] Optionally, in a possible implementation, the outdoor operation module comprises a left operation device and a right operation device, and the left operation device and the right operation device are arranged at the tail of the vehicle body.

[0008] In the technical solution, the outdoor operation module is divided into the left operation device and the right operation device, which can further facilitate the operation of the user, and the left operation device and the right operation device can be flexibly selected to control the upper loading system according to the actual site and the parking position of the mixer truck, and the loading state can be conveniently observed in real time.

[0009] Optionally, in a possible implementation, the left operation device and the right operation device are of the same structure, and each comprises a handle rotatably arranged on the vehicle body through a rotating shaft, and a rotating driving member fixed to the vehicle body, the handle is connected to the output end of the rotating driving member through a linkage member, and an angle sensor is arranged at the rotating shaft.

[0010] In the technical solution, the handle is rotated, the rotating angle of the handle is sensed by the angle sensor, and then the rotating angle information is sent to the controller, so that the controller can control the driving motor to change the rotating state of the mixing tank according to the angle information, and the rotating driving member can reset the handle, thereby realizing the automatic reset and synchronization function of the left operation device and the right operation device.

[0011] Optionally, in a possible implementation, the linkage member comprises an arc-shaped rack fixed to the handle, and a gear fixed to the output end of the rotating driving member, and the arc-shaped rack is meshingly connected with the gear.

[0012] In the technical solution, the rotating driving member drives the movement of the arc-shaped rack through the driving gear to realize the reset function of the handle, which is simple in structure and convenient to operate, a plurality of gears can be arranged on the arc-shaped rack, and when operating, the rotating state of the mixing tank can be controlled by rotating the handle to the corresponding gear, which is simple and convenient.

[0013] Optionally, in a possible implementation, the rotating driving member is fixed to the vehicle body through a support.

[0014] In the technical solution, the rotating driving member is fixed to the vehicle body through the support, which facilitates the disassembly and installation of the rotating driving member and ensures the stability of the rotating driving member during operation.

[0015] Optionally, in a possible implementation, the rotating driving member is a speed reduction motor, and the gear is fixed to the output shaft of the speed reduction motor.

[0016] In the above technical solution, the reduction motor is easy to disassemble and assemble, saves installation space, can better control the speed of the gear, has high efficiency and reliability, long service life, simple maintenance, and is widely used.

[0017] A method for operating and self-resetting an outdoor operating device of a mixer truck comprises the following steps:

[0018] Step 1: The main control module enables the outdoor operation module;

[0019] Step 2: The controller and the outdoor operation module synchronously detect whether the enable is valid, and repeat the detection if the enable is invalid; if the enable is valid, the outdoor operation module sends the rotation angle information to the controller in real time;

[0020] Step 3: The controller controls the driving motor to drive the stirring tank to change the rotation state according to the received rotation angle information;

[0021] Step 4: The main control module cancels the enabling of the outdoor operation module;

[0022] Step 5: When the outdoor operation module detects that the enable has changed from valid to invalid, it resets the rotation angle to the initial state and sends the information to the controller. The controller controls the drive motor to drive the mixing tank to reset to the initial rotation state.

[0023] The above operation and self-reset method, after the main control module enables the outdoor operation module, enables the outdoor operation module to control the upper installation system. When the outdoor operation module detects that its own enable is valid, the user can control the rotation state of the mixing tank through the outdoor operation module, which is convenient for the user to perform outdoor operation. When the mixing tank needs to be restored to the initial state, it is only necessary to allow the main control module to cancel the enable of the outdoor control module. When the outdoor operation module detects that its own enable is invalid, the controller will drive the outdoor operation module to restore its rotation angle to the initial position, thereby allowing the drive motor to drive the mixing tank to reset to the initial state, realizing the self-reset function of the mixing tank. The operation is simple and convenient. Compared with the traditional reset method that requires long pressing a button in the cab or outdoors, the reset method of the mixing tank of the present invention is simpler and more accurate.

[0024] Optionally, in a possible implementation, the outdoor operation module includes a left operating device and a right operating device. In step one, after the main control module is enabled, only the left operating device or the right operating device can control the upper installation system.

[0025] In the above technical solution, the left operating device and the right operating device make it possible to flexibly select the left operating device and the right operating device to control the upper installation system according to the actual site and the parking position of the mixer truck, so as to facilitate real-time observation of the upper installation status. Only one of the main control module, the left operating device and the right operating device can control the upper installation system. This can effectively avoid the interference of the upper installation system caused by the simultaneous operation of the above two control devices, thereby ensuring the effective operation of the upper installation system.

[0026] Optionally, in a possible implementation, when the rotation angle of the left operating device / right operating device changes, the controller synchronizes the rotation angle of the right operating device / left operating device according to information of the changed rotation angle.

[0027] In the above technical solution, when the user operates the left operating device or the right operating device alone, the rotation angle information of the left operating device or the right operating device will change. Conversely, in order to facilitate the user's operation and avoid confusion during operation, the corresponding right operating device or the left operating device can be synchronized, thereby improving operation accuracy and facilitating the user to switch back and forth between the left and right operating devices at any time.

[0028] Optionally, in a possible implementation, after the main control module cancels the enabling of the outdoor operation module, the main control module may control the upper installation system.

[0029] In the above technical solution, after the main control module is disabled, it can still control the upper installation system. In this way, it can ensure that the control of the upper installation system always remains effective, thereby improving the flexibility of use of the upper installation system.

[0030] The beneficial effects of the present invention compared to the prior art are:

[0031] The operation and self-resetting method of the outdoor operation device of the mixer truck of the present invention is that the user can control the upper installation system to perform operations such as feeding, discharging, and stopping by operating the main control module. The main control module can independently control the upper installation system, and can also enable the outdoor operation module so that the outdoor operation module can also control the upper installation system, so that the user can operate outdoors, thereby conveniently observing the working status of the upper installation system.

[0032] The present invention can detect the operating status of the main control module and the outdoor operation module in real time, and change different control modes according to the status information of the two. It is convenient for users to operate outdoors to adjust the rotation state of the mixing tank, and can also automatically and quickly reset the initial state of the mixing tank. The operation is simple and convenient. Compared with the traditional mixing tank resetting method that requires long pressing a button in the cab or outdoors, the mixing tank resetting method of the present invention is simpler and more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0035] Figure 2 2 is a schematic structural diagram of a left operating device according to an embodiment of the present invention.

[0036] Figure 3 Flowchart of operation and self-reset of one embodiment of the present invention.

[0037] Figure numerals: 1-vehicle body; 11-cab; 12-mixing tank; 2-main control module; 3-engine; 4-drive motor; 5-generator; 6-BMS and battery pack; 7-controller; 8-outdoor operation module; 81-handle; 82-rotating drive member; 83-rotating shaft; 84-angle sensor; 85-arc rack; 86-gear; 87-bracket. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0040] Please refer to Figure 1The present embodiment provides an outdoor operation device of a mixer truck, comprising a vehicle body 1, a cab 11 installed on the vehicle body 1, and a mixing tank 12. A main control module 2 is provided in the cab 11, and the vehicle body 1 is provided with an engine 3 electrically connected to the main control module 2, an upper mounting system, and an outdoor operation module 8 electrically connected to the upper mounting system and the main control module 2. The upper mounting system includes a drive motor 4, a BMS and a battery pack 6, a generator 5 and a controller 7; the drive motor 4 is used to drive the rotation of the mixing tank 12, and the main control module 2 can control the upper mounting system, or enable the outdoor operation module 8 so that the outdoor operation module 8 can control the upper mounting system.

[0041] Specifically, the main control module 2 is arranged at the central control position in the cab 11, and the engine 3 is arranged below the cab 11; the upper system is arranged at the rear of the cab 11, wherein the drive motor 4 is connected to the mixing tank 12 and is used to drive the rotation of the mixing tank 12, the BMS and the battery pack 6 are used as a power supply, the generator 5 is used to generate electricity for the BMS and the battery pack 6, and the controller 7 serves as the control center of the upper system and is used to receive information from the drive engine 3, the drive motor 4, the BMS and the battery pack 6, the generator 5 and the outdoor operation module 8. It should be noted that the installation method and use principle of the engine 3, the drive motor 4, the generator 5, the BMS and the battery pack 6 and the controller 7 are relatively mature technical means in the existing technology. The specific assembly and connection methods are not repeated here. For details, please refer to the assembly of the existing mixer truck.

[0042] After the outdoor operation device of the mixer truck of this embodiment is powered on, the user can control the upper system to perform operations such as feeding, discharging, and stopping by operating the main control module 2. In the upper system, the generator 5 generates electricity for the BMS and battery pack 6, and the BMS and battery pack 6 supply power to the drive motor 4, which drives the mixing tank 12 to rotate. The controller 7 serves as the control center to control the operation of the upper system. The main control module 2 can independently control the upper system, or it can enable the outdoor operation module 8 so that the outdoor operation module 8 can also control the upper system. This allows the user to operate outdoors, making it convenient to observe the working status of the upper system.

[0043] In one possible implementation, the outdoor operation module 8 includes a left operating device and a right operating device, which are spaced apart and arranged at the rear of the vehicle body 1. Specifically, the left operating device and the right operating device can be connected to the main control module 2 or the controller 7 via wires and are respectively arranged on the left and right sides of the rear of the vehicle body 1.

[0044] This embodiment divides the outdoor operation module 8 into a left operating device and a right operating device, which can further facilitate the user's operation. The user can flexibly select the left operating device and the right operating device to control the upper installation system according to the actual site and the parking position of the mixer truck, so as to facilitate real-time observation of the upper installation status.

[0045] Please refer to Figure 2 In one possible implementation, the left operating device and the right operating device have the same structure, both including a handle 81 rotatably mounted on the vehicle body 1 via a rotating shaft 83, and a rotary drive member 82 fixed to the vehicle body 1, the handle 81 is connected to the output end of the rotary drive member 82 via a linkage member, and an angle sensor 84 is provided at the rotating shaft 83.

[0046] When the left operating device or the right operating device is in use, the handle 81 is toggled, and the angle sensor 84 senses the rotation angle of the handle 81, and then the rotation angle information is sent to the controller 7, so that the controller 7 can control the drive motor 4 to change the rotation state of the stirring tank 12 according to the angle information, and the rotating drive member 82 can reset the handle 81, thereby realizing its automatic reset and the synchronization function of the left operating device and the right operating device.

[0047] In one possible implementation, the linkage includes an arcuate rack 85 fixed to the handle 81 and a gear 86 fixed to the output end of the rotary drive member 82. The arcuate rack 85 is meshed with the gear 86. The middle position of the arcuate rack 85 is fixed to the handle 81. During actual use, different meshing positions of the arcuate rack 85 and the gear 86 can be set to different gear positions.

[0048] The rotary drive member 82 of this embodiment drives the arc-shaped rack 85 to move by the driving gear 86 to realize the reset function of the handle 81. It has a simple structure and is easy to operate. Multiple gears can be set on the arc-shaped rack 85. During operation, it is only necessary to move the handle 81 to the corresponding gear to control the rotation state of the mixing tank 12, which is simple and convenient.

[0049] In one possible implementation, the rotary drive member 82 is fixed to the vehicle body 1 via a bracket 87. Fixing the rotary drive member 82 to the vehicle body 1 via the bracket 87 facilitates the removal and installation of the rotary drive member 82 and ensures the stability of the rotary drive member 82 during operation.

[0050] In one possible implementation, the rotary drive member 82 is a reduction motor, and the gear 86 is fixed to the output shaft of the reduction motor. The reduction motor is easy to disassemble and assemble, saves installation space, can better control the speed of the gear 86, has high efficiency and reliability, long service life, simple maintenance, and is widely applicable.

[0051] The operating logic of the present embodiment is as follows: after the system is powered on, the user can operate the main control module 2 in the cab 11 to control the upper installation system to perform operations such as feeding, discharging, and stopping. The user can also operate the main control module 2 to enable the left operating device or the right operating device. After enabling, the main control module 2 cannot control the upper installation system. After canceling the enabling, the main control module 2 can control the upper installation system again. After the main control module 2 is enabled, the left operating device can be initially assumed to be operable. When the right operating device needs to be operated, the right operating device needs to be enabled. Among them, only one of the main control module 2, the left operating device, and the right operating device can be operated at the same time. In addition, an enable key can be added to the right operating device, so that it can be directly enabled by the enable key so that the right operating device can be operated without the need for the main control module 2 to be enabled separately.

[0052] Furthermore, the upper body system controller 7 of this embodiment receives information from modules such as the engine 3, drive motor 4, generator 5, BMS, and battery pack 6. It controls motor operation based on the upper body system's set operating state and controls generator 5's power generation based on the status of the BMS, battery pack 6, and engine 3. If controller 7 fails, the main control module 2 can take over upper body system control.

[0053] Please refer to Figure 1-Figure 3 The present invention also relates to an operation and self-resetting method of an outdoor operating device of a mixer truck, comprising the following steps:

[0054] Step 1: The main control module 2 enables the outdoor operation module 8 so that the outdoor operation module 8 can control the upper installation system, while the main control module 2 cannot control the upper installation system.

[0055] Step 2: The controller 7 and the outdoor operation module 8 synchronously detect whether the enable is valid, and repeat the detection when the enable is invalid; when the enable is valid, the outdoor operation module 8 sends the rotation angle information to the controller 7 in real time; among them, when the enable is invalid, the outdoor operation module 8 cannot control the upper system, but the main control module 2 can control the upper system.

[0056] Step 3: The controller 7 controls the drive motor 4 to drive the mixing tank 12 to change the rotation state according to the received rotation angle information; wherein, the rotation angle information of the outdoor operation module 8 is changed by user operation, and the controller 7 controls the upper system action by receiving the information in real time.

[0057] Step 4: The main control module 2 cancels the enabling of the outdoor operation module 8;

[0058] Step 5: When the outdoor operation module 8 detects that the enable is changed from valid to invalid, it resets the rotation angle to the initial state and sends the information to the controller 7. The controller 7 controls the drive motor 4 to drive the mixing tank 12 to reset to the initial rotation state.

[0059] The operation and self-reset method of the present embodiment, after the main control module 2 enables the outdoor operation module 8, the outdoor operation module 8 can control the upper installation system. When the outdoor operation module 8 detects that its own enable is valid, the user can control the rotation state of the mixing tank 12 through the outdoor operation module 8, which is convenient for the user to perform outdoor operations. When the mixing tank 12 needs to be restored to the initial state, it is only necessary to allow the main control module 2 to cancel the enable of the outdoor control module. When the outdoor operation module 8 detects that its own enable is invalid, the controller 7 will drive the outdoor operation module 8 to restore its rotation angle to the initial position, thereby allowing the drive motor 4 to drive the mixing tank 12 to reset to the initial state, realizing the self-reset function of the mixing tank 12. The operation is simple and convenient. Compared with the traditional reset method that requires long pressing a button in the cab 11 or outdoors, the reset method of the mixing tank 12 of the present invention is simpler and more accurate.

[0060] In a possible implementation, the outdoor operating module 8 includes a left operating device and a right operating device. In step 1, after the main control module 2 is enabled, only the left operating device or the right operating device can control the upper installation system.

[0061] The left operating device and the right operating device of this embodiment make it possible to flexibly select the left operating device and the right operating device to control the upper installation system according to the actual site and the parking position of the mixer truck, so as to facilitate real-time observation of the upper installation status. Only one of the main control module 2, the left operating device and the right operating device can control the upper installation system. In this way, it can effectively avoid the above-mentioned two control devices operating at the same time and interfering with the operation of the upper installation system, thereby ensuring the effective operation of the upper installation system.

[0062] In a possible implementation, when the rotation angle of the left operating device / the right operating device changes, the controller 7 synchronizes the rotation angles of the right operating device / the left operating device according to the changed rotation angle information.

[0063] Specifically, when the user operates the left operating device or the right operating device alone, the rotation angle information of the left operating device or the right operating device will change. Conversely, in order to facilitate the user's operation and avoid confusion during operation, the corresponding right operating device or the left operating device can be synchronized, thereby improving operation accuracy and facilitating the user to switch back and forth between the left operating device and the right operating device at any time.

[0064] In one possible implementation, after the main control module 2 disables the outdoor operation module 8, the main control module 2 can control the upper installation system. In this embodiment, after the main control module 2 disables the outdoor operation module 8, it can still control the upper installation system. This ensures that the control of the upper installation system remains effective at all times, thereby improving the flexibility of the upper installation system.

[0065] The overall structure of the upper body of this embodiment can be divided into the installation and operation logic of the outdoor operation module 8, the operator operation mode, the synchronization of the left and right operating devices, and the device reset. The operator can operate the left and right operating devices separately at the rear of the vehicle. In the left and right operating devices, turning the operating handle 81 toward the rear of the vehicle sets the device to discharge, turning the operating handle 81 toward the front of the vehicle sets the device to feed, and turning the operating handle 81 in the middle position sets the device to stop. Furthermore, the different swing amplitudes of the handle 81 can be designed to represent multiple gear positions. The controller 7 determines the gear position of the left and right operating devices based on the angle sensor 84.

[0066] Synchronization method of the left operating device and the right operating device: When the person operates the main control module 2 to enable the left operating device or the right operating device, the right operating device or the operating device that is not operated is controlled by the controller 7 to rotate the rotary drive member 82. When it is detected that the positions reached by the angle sensors 84 on the left operating device and the right operating device are consistent with the system requirements, the rotary drive member 82 notifies the rotation to keep the handle 81 at the current position.

[0067] When reset is required, the operator operates the main control module 2 to cancel the enable, and the controller 7 controls the rotary drive member 82 to reset the handle 81 to the initial position. Among them, the initial position can be the center position of the arc-shaped rack 85. Of course, the initial position can also be set at a different position according to actual needs.

[0068] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0069] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for operating and self-resetting an outdoor operating device of a mixer truck, characterized in that: The outdoor operation device includes a vehicle body, a cab installed on the vehicle body, and a mixing tank. The cab is provided with a main control module. The vehicle body is provided with an engine electrically connected to the main control module, an upper installation system, and an outdoor operation module electrically connected to the upper installation system and the main control module. The upper installation system includes a drive motor, a BMS and a battery pack, a generator, and a controller. The drive motor is used to drive the rotation of the mixing tank. The main control module can control the upper installation system, or enable the outdoor operation module to control the upper installation system. The operation and self-resetting method comprises the following steps: Step 1: The main control module enables the outdoor operation module; Step 2: The controller and the outdoor operation module synchronously detect whether the enable is valid, and repeat the detection if the enable is invalid; if the enable is valid, the outdoor operation module sends the rotation angle information to the controller in real time; Step 3: The controller controls the driving motor to drive the stirring tank to change the rotation state according to the received rotation angle information; Step 4: The main control module cancels the enabling of the outdoor operation module; Step 5: When the outdoor operation module detects that the enable has changed from valid to invalid, it resets the rotation angle to the initial state and sends the information to the controller. The controller controls the drive motor to drive the mixing tank to reset to the initial rotation state.

2. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 1, characterized in that: The outdoor operating module includes a left operating device and a right operating device, and the left operating device and the right operating device are spaced apart and arranged at the rear of the vehicle body.

3. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 2, characterized in that: The left operating device and the right operating device have the same structure, both including a handle rotatably mounted on the vehicle body via a rotating shaft, and a rotating drive member fixed to the vehicle body. The handle is connected to the output end of the rotating drive member via a linkage member, and an angle sensor is provided at the rotating shaft.

4. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 3, characterized in that: The linkage member includes an arc-shaped rack fixed to the handle and a gear fixed to the output end of the rotary drive member, and the arc-shaped rack is meshed with the gear.

5. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 3, characterized in that: The rotary driving member is fixed on the vehicle body via a bracket.

6. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 4, characterized in that: The rotary driving member is a reduction motor, and the gear is fixed on the output shaft of the reduction motor.

7. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 1, characterized in that: The outdoor operation module includes a left operating device and a right operating device. In the step 1, after the main control module is enabled, only the left operating device or the right operating device controls the upper installation system.

8. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 7, characterized in that: When the rotation angle of the left operating device / the right operating device changes, the controller synchronizes the rotation angles of the right operating device / the left operating device according to the changed rotation angle information.

9. The method for operating and self-resetting the outdoor operating device of a mixer truck according to claim 1, characterized in that: After the main control module cancels the enabling of the outdoor operation module, the main control module controls the upper installation system.

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