CN103086285A - Tipping prevention device, engineering machinery and tipping prevention method - Google Patents
Tipping prevention device, engineering machinery and tipping prevention methodDownload PDFInfo
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Abstract
Translated fromChineseDescription
Translated fromChinese技术领域technical field
本发明涉及工程机械领域，具体而言，涉及一种防倾翻装置、含有该装置的工程机械及防倾翻的方法。The invention relates to the field of engineering machinery, in particular to an anti-overturning device, an engineering machine containing the device and an anti-overturning method.
背景技术Background technique
随车起重运输车作为特种车辆的主要品种之一，是经济发展到较高阶段后的普及型运输装备。在乡交通设备、设施建设与物流业务的快速发展，产生道路施工与维修、搬运和起重等业务需求，带动随车起重运输车市场高速增长。国内经济高速发展带动人们生活水平快速提升，手工劳动逐步被机械化劳动所替代，给随车起重运输车带来更大的市场需求。As one of the main varieties of special vehicles, the truck-mounted crane transport vehicle is a popular transportation equipment after the economic development reaches a higher stage. The rapid development of rural transportation equipment, facility construction and logistics business has generated business needs such as road construction and maintenance, handling and lifting, and driven the rapid growth of the truck-mounted crane market. The rapid development of the domestic economy has driven the rapid improvement of people's living standards, and manual labor has gradually been replaced by mechanized labor, which has brought greater market demand for truck-mounted lifting and transport vehicles.
国家施工安全法律法规要求不断提高，对随车起重运输车的安全要求也越来越高，目前现在的国家相关标准已经明确在8T的起重设备必须安装力矩限制器系统，国家标准执行越来越严格。随车起重运输车作业过程中底盘一般不为吊机生产厂家所制造，主要根据客户要求进行底盘选型后改装。这种不用于汽车起重机的生产方式，使整车的稳定性很难得到完全的保证，国内生产随车起重运输车厂家的起重性能表中主要致力于吊机的强，更由于选择底盘的广泛性，导致一个吊机的稳定性差别非常的大。这会导致安全性问题比较突出。The requirements of national construction safety laws and regulations are constantly improving, and the safety requirements for truck-mounted cranes are also getting higher and higher. At present, the relevant national standards have clearly stated that the moment limiter system must be installed on 8T lifting equipment, and the implementation of national standards is getting better. getting stricter. During the operation of the truck-mounted crane transport vehicle, the chassis is generally not manufactured by the crane manufacturer, and it is mainly modified after the chassis is selected according to the customer's requirements. This kind of production method that is not used for truck cranes makes it difficult to completely guarantee the stability of the whole vehicle. The lifting performance tables of domestic truck-mounted truck crane manufacturers mainly focus on the strength of the crane, and because of the choice of chassis The extensiveness of the crane leads to a very large difference in the stability of a crane. This will lead to more prominent security problems.
目前最好的方式是参照汽车起重机安装力矩限制器系统，但是由于随车起重运输车的成本控制非常严格，客户对于整车的价格也非常敏感，所以低成本的安全系统成为一种选择。当吊车作业的时候，如果吊重的力矩过大，整车的倾斜角度超过了整车倾翻的某个角度，那么就有可能发生车辆倾翻，造成人员伤亡和财务损失。At present, the best way is to install the moment limiter system by referring to the truck crane. However, because the cost control of the truck-mounted crane is very strict, and the customer is also very sensitive to the price of the whole vehicle, a low-cost safety system has become an option. When the crane is working, if the hoisting moment is too large and the inclination angle of the whole vehicle exceeds a certain angle at which the whole vehicle is overturned, then the vehicle may overturn, causing casualties and financial losses.
因此，需要设计一种防倾翻装置，能够通过检测支腿箱与垂直支腿的距离判断是否有松动危险，及时报警提醒操作手注意安全，停止向危险方向动作是亟需解决的问题。Therefore, it is necessary to design an anti-tipping device, which can judge whether there is a risk of loosening by detecting the distance between the outrigger box and the vertical outrigger, and timely alarm to remind the operator to pay attention to safety, and stop moving in the dangerous direction is an urgent problem to be solved.
发明内容Contents of the invention
本发明所要解决的技术问题在于，提供一种防倾翻装置，成本低，安装简单，及时可靠，且能够有效的防止工程机械在作业时发生侧翻。本发明还提供了一种工程机械和防倾翻的方法。The technical problem to be solved by the present invention is to provide an anti-tipping device, which is low in cost, easy to install, timely and reliable, and can effectively prevent rollover of construction machinery during operation. The invention also provides an engineering machine and an anti-overturning method.
有鉴于此，本发明提供了一种防倾翻装置，用于带支腿的工程机械，所述支腿一端伸入支腿箱体内，可沿所述支腿箱体的轴线移动，所述防倾翻装置包括传感器、控制器和执行器，所述传感器用于检测所述支腿上表面或者下表面与所述支腿箱体内壁之间的距离，并向所述控制器发出信号；所述控制器接收所述信号并将所述信号与预设数值进行比较，在所述信号超出所述预设数值的范围时向所述执行器发出执行指令；所述执行器接收所述执行指令，并根据所述执行指令控制工程机械报警和/或紧急停车和/或控制工程机械的各参数回到安全范围内。In view of this, the present invention provides an anti-tipping device for engineering machinery with outriggers, one end of the outriggers extends into the outrigger box, and can move along the axis of the outrigger box. The anti-tipping device includes a sensor, a controller and an actuator, the sensor is used to detect the distance between the upper surface or the lower surface of the outrigger and the inner wall of the outrigger box, and send a signal to the controller; The controller receives the signal and compares the signal with a preset value, and sends an execution instruction to the actuator when the signal exceeds the range of the preset value; the actuator receives the execution command, and control the construction machinery to alarm and/or emergency stop and/or control the parameters of the construction machinery to return to the safe range according to the execution command.
本发明提供的防倾翻装置，结构简单，安装方便，价格低廉，能够降低生产成本，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The anti-tipping device provided by the invention has simple structure, convenient installation, low price, can reduce production cost, and can effectively prevent engineering machinery from rolling over during operation, prevent occurrence of danger, and eliminate potential safety hazards.
在上述技术方案中，优选地，所述传感器设置在所述支腿箱体的上盖板上，所述传感器为接近开关或者行程开关。In the above technical solution, preferably, the sensor is arranged on the upper cover of the outrigger box, and the sensor is a proximity switch or a travel switch.
传感器设置在支腿箱体的上盖板上，安装方便，位置合理，能够有效的检测到支腿与支腿箱体之间的距离；接近开关工作可靠，寿命长，功耗低，复位精度高；行程开关结构简单，成本低，效果明显，可根据不同的需要和要求选择合适的传感器。The sensor is set on the upper cover of the outrigger box, which is convenient for installation and reasonable in position, and can effectively detect the distance between the outrigger and the outrigger box; the proximity switch is reliable in operation, long in life, low in power consumption, and resets accurately High; the limit switch has simple structure, low cost and obvious effect, and the appropriate sensor can be selected according to different needs and requirements.
在上述技术方案中，优选地，在每一支腿箱体的上盖板上均设置有所述接近开关或行程开关。In the above technical solution, preferably, the proximity switch or travel switch is provided on the upper cover of each leg box.
每个支腿箱体的上盖板上均设置有接近开关或行程开关，能够提高控制精度，能够更有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The upper cover of each outrigger box is equipped with a proximity switch or a travel switch, which can improve the control accuracy, and can more effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, and eliminate potential safety hazards.
在上述任一技术方案中，优选地，所述执行器包括报警装置和/或急停装置和/或控制系统，根据所述控制器发出的执行指令，所述报警装置可发出报警提示、所述急停装置可控制工程机械停车、所述控制系统可控制吊臂回到安全范围内。In any of the above technical solutions, preferably, the actuator includes an alarm device and/or an emergency stop device and/or a control system, and according to an execution command issued by the controller, the alarm device can issue an alarm prompt, the The emergency stop device can control the construction machinery to stop, and the control system can control the boom to return to the safe range.
执行器的形式多种多样，可根据不同的需要和要求选择合适的控制器。There are various forms of actuators, and the appropriate controller can be selected according to different needs and requirements.
在上述技术方案中，优选地，所述报警装置为蜂鸣器。In the above technical solution, preferably, the alarm device is a buzzer.
蜂鸣器结构简单，安装方便，效果明显，价格低廉，能够降低生产成本。The buzzer has simple structure, convenient installation, obvious effect, low price, and can reduce production cost.
在上述技术方案中，优选地，所述传感器通过导线连接至所述控制器，所述控制器通过导线连接至所述报警装置和/或所述急停装置和/或控制系统。In the above technical solution, preferably, the sensor is connected to the controller through a wire, and the controller is connected to the alarm device and/or the emergency stop device and/or the control system through a wire.
传感器连接至控制器，控制器连接至执行器，结构简单，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The sensor is connected to the controller, and the controller is connected to the actuator. The structure is simple, and it can effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, and eliminate potential safety hazards.
本发明还提供了一种防倾翻装置，用于带支腿的工程机械，所述支腿一端伸入支腿箱体内，可沿所述支腿箱体的轴线移动，至少包括第一位置开关和第二位置开关，所述第一位置开关设置在位于所述工程机械的第一侧面的支腿上表面或者支腿箱体上盖板内壁上，所述第二位置开关设置在所述工程机械的与所述第一侧面相对的第二侧面的支腿的上表面或者支腿箱体上盖板内壁上，所述第一位置开关和第二位置开关串联在工程机械的整车控制回路中。The present invention also provides an anti-overturning device for construction machinery with outriggers, one end of the outriggers extends into the outrigger box, and can move along the axis of the outrigger box, including at least a first position switch and a second position switch, the first position switch is set on the upper surface of the outrigger on the first side of the construction machine or on the inner wall of the upper cover of the outrigger box, the second position switch is set on the On the upper surface of the outrigger on the second side opposite to the first side of the construction machine or on the inner wall of the upper cover of the outrigger box, the first position switch and the second position switch are connected in series to the vehicle control of the construction machine. in the loop.
本发明还提供的防倾翻装置，结构简单，安装方便，价格低廉，能够降低生产成本，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The anti-tipping device provided by the present invention has simple structure, convenient installation, low price, can reduce production cost, and can effectively prevent engineering machinery from rolling over during operation, prevent danger from occurring, and eliminate potential safety hazards.
在上述技术方案中，优选地，所述第一位置开关为接近开关或者行程开关，和/或，所述第二位置开关为接近开关或者行程开关。In the above technical solution, preferably, the first position switch is a proximity switch or a travel switch, and/or, the second position switch is a proximity switch or a travel switch.
接近开关工作可靠，寿命长，功耗低，复位精度高；行程开关结构简单，成本低，效果明显，可根据不同的需要和要求选择合适的传感器。The proximity switch is reliable in operation, long in life, low in power consumption, and high in reset accuracy; the travel switch is simple in structure, low in cost, and has obvious effects. The appropriate sensor can be selected according to different needs and requirements.
此外，本发明还提供了一种工程机械，包括有上述技术方案中所述的防倾翻装置。显而易见，该工程机械具有上述防倾翻装置的全部有益效果，在此不再赘述。In addition, the present invention also provides a construction machine including the anti-overturning device described in the above technical solution. Obviously, this construction machine has all the beneficial effects of the above-mentioned anti-overturning device, so it will not be repeated here.
另外，本发明还提供了一种防倾翻的方法，用于带支腿的工程机械，包括如下步骤：In addition, the present invention also provides an anti-overturning method for construction machinery with outriggers, comprising the following steps:
步骤102，检测支腿上表面或下表面与支腿箱体内壁之间的距离，发出检测信号；
步骤104，将所述检测信号与预设数值进行比较，在所述检测信号超出所述预设数值的范围时发出执行指令；
步骤106，根据所述执行指令控制工程机械报警和/或紧急停车和/或控制工程机械各参数回到安全范围内。
本发明提供的技术方案，能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The technical scheme provided by the invention can effectively prevent the engineering machinery from rolling over during operation, prevent danger from occurring, and eliminate potential safety hazards.
综上所述，本发明提供的防倾翻装置及防倾翻的方法，能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患，且结构简单，安装方便，价格低廉，能够降低生产成本。To sum up, the anti-tipping device and the anti-tipping method provided by the present invention can effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, eliminate potential safety hazards, and have a simple structure and easy installation , low price, can reduce production cost.
附图说明Description of drawings
图1是本发明所述防倾翻装置一实施例的结构框图；Fig. 1 is a structural block diagram of an embodiment of the anti-overturning device of the present invention;
图2是图1中传感器的安装结构示意图；Fig. 2 is a schematic diagram of the installation structure of the sensor in Fig. 1;
图3是根据本发明所述防倾翻的方法一实施例的流程框图。Fig. 3 is a flowchart of an embodiment of the anti-overturning method according to the present invention.
其中，图1至图3中附图标记与部件名称之间的对应关系为：Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 3 is:
1传感器，2控制器，3执行器，4支腿，5支腿箱体，6防倾翻装置。1 sensor, 2 controller, 3 actuator, 4 legs, 5 legs box, 6 anti-tipping device.
具体实施方式Detailed ways
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
如图1和图2所示，本发明提供了一种防倾翻装置6，用于带支腿的工程机械，所述支腿4一端伸入支腿箱体5内，可沿所述支腿箱体5的轴线移动，所述防倾翻装置6包括传感器1、执行器3和控制器2，所述传感器1用于检测所述支腿4上表面或者下表面与所述支腿箱体5内壁之间的距离，并向所述控制器2发出信号；所述控制器2接收所述信号并将所述信号与预设数值进行比较，在所述信号超出所述预设数值的范围时向所述执行器3发出执行指令；所述执行器3接收所述执行指令，并根据所述执行指令控制工程机械报警和/或紧急停车和/或控制工程机械的各参数回到安全范围内。As shown in Figures 1 and 2, the present invention provides an anti-overturning device 6 for engineering machinery with outriggers, one end of the
本发明提供的防倾翻装置，结构简单，安装方便，价格低廉，能够降低生产成本，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The anti-tipping device provided by the invention has simple structure, convenient installation, low price, can reduce production cost, and can effectively prevent engineering machinery from rolling over during operation, prevent occurrence of danger, and eliminate potential safety hazards.
当工程机械吊重的力矩过大，工程机械会发生倾斜，负责整车支撑的某一支腿会发生松动，支腿箱体与受力支腿的上端面会脱开，支腿箱体上的传感器通过检测支腿上表面或者下表面与支腿箱体内壁之间的距离，发出检测信号，控制器根据检测到的信号发出执行指令，执行器根据执行指令，及时报警提醒操作手注意安全，停止向危险方向动作，并将工程机械的各参数回到安全范围内。When the lifting moment of the construction machinery is too large, the construction machinery will tilt, a certain leg responsible for the support of the whole vehicle will loosen, and the outrigger box will be disengaged from the upper end surface of the stressed outrigger. The sensor sends a detection signal by detecting the distance between the upper or lower surface of the outrigger and the inner wall of the outrigger box, the controller sends out an execution command according to the detected signal, and the actuator sends an alarm in time to remind the operator to pay attention to safety according to the execution command , stop moving in the dangerous direction, and return the parameters of the construction machinery to the safe range.
在上述实施例中，优选地，如图2所示，所述传感器1设置在所述支腿箱体5的上盖板上，所述传感器1为接近开关或者行程开关。In the above embodiment, preferably, as shown in FIG. 2 , the
传感器设置在支腿箱体的上盖板上，安装方便，位置合理，能够有效的检测到支腿与支腿箱体之间的距离；接近开关工作可靠，寿命长，功耗低，复位精度高；行程开关结构简单，成本低，效果明显，可根据不同的需要和要求选择合适的传感器。The sensor is set on the upper cover of the outrigger box, which is convenient for installation and reasonable in position, and can effectively detect the distance between the outrigger and the outrigger box; the proximity switch is reliable in operation, long in life, low in power consumption, and resets accurately High; the limit switch has simple structure, low cost and obvious effect, and the appropriate sensor can be selected according to different needs and requirements.
在上述实施例中，优选地，在每一支腿箱体5的上盖板上均设置有所述接近开关或行程开关。In the above embodiment, preferably, the proximity switch or travel switch is provided on the upper cover of each
每个支腿箱体的上盖板上均设置有接近开关或行程开关，能够提高控制精度，能够更有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The upper cover of each outrigger box is equipped with a proximity switch or a travel switch, which can improve the control accuracy, and can more effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, and eliminate potential safety hazards.
从实现本发明目的来看，只要在一个支腿箱体5的上盖板上设置传感器1，来检测该支腿箱体5和支腿4之间的距离，即可实现防倾翻的目的，因为，产生倾翻之前，各个支腿4的受力必然发生变化，从而必然导致各个支腿4与支腿箱体5的间距发生变化，从而进行检测实现防倾翻目的。但是，优选地，可以在部分或者全部支腿箱体5的上盖板上均设置传感器1，这样可以提高防倾覆的灵敏性和安全概率。In terms of realizing the purpose of the present invention, as long as a
在上述任一实施例中，优选地，所述执行器3包括报警装置和/或急停装置、和/或控制系统，根据所述控制器2发出的执行指令，所述报警装置可发出报警提示、所述急停装置可控制工程机械停车、所述控制系统可控制吊臂回到安全范围内。In any of the above-mentioned embodiments, preferably, the actuator 3 includes an alarm device and/or an emergency stop device, and/or a control system, and the alarm device can issue an alarm according to the execution instruction issued by the controller 2 Tips, the emergency stop device can control the construction machinery to stop, and the control system can control the boom to return to the safe range.
执行器的形式多种多样，可根据不同的需要和要求选择合适的控制器。There are various forms of actuators, and the appropriate controller can be selected according to different needs and requirements.
在上述实施例中，优选地，所述报警装置为蜂鸣器。In the above embodiment, preferably, the alarm device is a buzzer.
蜂鸣器结构简单，安装方便，效果明显，价格低廉，能够降低生产成本。The buzzer has simple structure, convenient installation, obvious effect, low price, and can reduce production cost.
在上述实施例中，优选地，所述传感器1通过导线连接至所述控制器2，所述控制器2通过导线连接至所述报警装置和/或所述急停装置和/或控制系统。In the above embodiment, preferably, the
传感器连接至控制器，控制器连接至执行器，结构简单，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The sensor is connected to the controller, and the controller is connected to the actuator. The structure is simple, and it can effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, and eliminate potential safety hazards.
本发明还提供了一种防倾翻装置，用于带支腿的工程机械，所述支腿4一端伸入支腿箱体5内，可沿所述支腿箱体5的轴线移动，至少包括第一位置开关和第二位置开关，所述第一位置开关设置在位于所述工程机械的第一侧面的支腿4的上表面或者支腿箱体5上盖板内壁上，所述第二位置开关设置在所述工程机械的与所述第一侧面相对的第二侧面的支腿4的上表面或者支腿箱体5上盖板内壁上，所述第一位置开关和第二位置开关串联在工程机械的整车控制回路中。The present invention also provides an anti-overturning device for engineering machinery with outriggers, one end of the
本发明提供的防倾翻装置，结构简单，安装方便，价格低廉，能够降低生产成本，且能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The anti-tipping device provided by the invention has simple structure, convenient installation, low price, can reduce production cost, and can effectively prevent engineering machinery from rolling over during operation, prevent occurrence of danger, and eliminate potential safety hazards.
第一位置开关和第二位置开关串联在工程机械的整车控制回路中，当工程机械正常工作时，第一位置开关和第二位置开关连通，使工程机械可以正常工作，当工程机械吊重的力矩过大，工程机械会发生倾斜，负责整车支撑的支腿会发生松动，支腿箱体与受力支腿的上端面会脱开，第一位置开关或者第二位置开关断开，使工程机械停车，防止危险发生。The first position switch and the second position switch are connected in series in the vehicle control circuit of the construction machinery. When the construction machinery is working normally, the first position switch and the second position switch are connected so that the construction machinery can work normally. If the torque is too large, the construction machinery will tilt, the outrigger responsible for the vehicle support will loosen, the outrigger box will be disengaged from the upper end surface of the stressed outrigger, the first position switch or the second position switch will be disconnected, Stop the construction machinery to prevent danger from happening.
在上述实施例案中，优选地，所述第一位置开关为接近开关或者行程开关，和/或，所述第二位置开关为接近开关或者行程开关。In the above embodiment, preferably, the first position switch is a proximity switch or a travel switch, and/or, the second position switch is a proximity switch or a travel switch.
接近开关工作可靠，寿命长，功耗低，复位精度高；行程开关结构简单，成本低，效果明显，可根据不同的需要和要求选择合适的传感器。The proximity switch is reliable in operation, long in life, low in power consumption, and high in reset accuracy; the travel switch is simple in structure, low in cost, and has obvious effects. The appropriate sensor can be selected according to different needs and requirements.
此外，本发明还提供了一种工程机械，包括有上述实施例中所述的防倾翻装置。显而易见，该工程机械具有上述防倾翻装置的全部有益效果，在此不再赘述。In addition, the present invention also provides a construction machine including the anti-overturning device described in the above embodiments. Obviously, this construction machine has all the beneficial effects of the above-mentioned anti-overturning device, so it will not be repeated here.
本领域的技术人员应当理解，在实际的操作中，控制器有很多种且控制精度等有所不同，本领域的技术人员可根据具体情况选取合适的控制器。Those skilled in the art should understand that in actual operation, there are many kinds of controllers with different control precisions, and those skilled in the art can select a suitable controller according to specific conditions.
如图3所示，本发明还提供了一种防倾翻的方法，用于带支腿的工程机械，包括如下步骤：As shown in Figure 3, the present invention also provides a method for preventing overturning, which is used for construction machinery with outriggers, including the following steps:
步骤102，检测支腿4上表面或者下表面和支腿箱体5内壁之间的距离，发出检测信号；
步骤104，将所述检测信号与预设数值进行比较，在所述检测信号超出所述预设数值的范围时发出执行指令；
步骤106，将所述检测信号与预设数值进行比较，在所述检测信号超出所述预设数值的范围时发出执行指令。
本发明提供的实施例，能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患。The embodiment provided by the present invention can effectively prevent the engineering machinery from rolling over during operation, prevent danger from occurring, and eliminate potential safety hazards.
综上所述，本发明提供的防倾翻装置及防倾翻的方法，能够有效的防止工程机械在作业时发生侧翻，防止了危险的发生，消除了安全隐患，且结构简单，安装方便，价格低廉，能够降低生产成本。To sum up, the anti-tipping device and the anti-tipping method provided by the present invention can effectively prevent the construction machinery from rolling over during operation, prevent the occurrence of danger, eliminate potential safety hazards, and have a simple structure and easy installation , low price, can reduce production cost.
在本发明中，术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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