Motor-assisted laser forcible entry cart device

Abstract

A motor-assisted laser forcible entry cart device comprises a frame, a laser cutting mechanism, a driving mechanism and a handrail operating mechanism. The laser cutting mechanism is detachably arranged on the vehicle frame and can precisely regulate and control the lifting height and the pitching angle of laser during laser cutting operation, the handrail operating mechanisms are detachably arranged at the two ends of the vehicle frame in pairs, and the driving mechanisms are arranged at the bottom of the vehicle frame in pairs and electrically connected with the handrail operating mechanisms. And the rotating speed of the driving mechanism can be adjusted according to the pressure on the armrest operating mechanisms on different sides. Through linkage of the handrail operating mechanism and the driving mechanism, the trolley can achieve electric power assistance, the laser cutting mechanism on the trolley can be rapidly transported to a rescue position, and stable and firm support is provided for operation of the laser cutting mechanism through arrangement of a damping support on the laser cutting mechanism; and shaking in the laser cutting process is avoided, and the laser cutting precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of emergency rescue trolley, more particularly, to a motor-assisted laser cutting trolley device. BACKGROUND

[0002] Emergency rescue generally refers to the activities and plans for prevention, preparation, response and recovery against sudden and destructive emergency events. According to different types of emergency events, it is divided into health emergency, traffic emergency, fire emergency, earthquake emergency, mine emergency, family emergency and other fields of emergency rescue. Trolley, as a common carrier in the rescue process, plays a great role.

[0003] However, the existing trolley device is mainly manually operated, and the equipment is transported to the designated position mainly by manual operation, which is low in efficiency. As shown in CN115107842A - a portable folding emergency rescue trolley and its use method, it aims to solve the problem that when natural disasters such as earthquakes and mudslides occur, the road is cut off due to soil collapse or mud caused by disaster, and rescue equipment cannot be delivered to the scene in time for rescue. The disadvantage is that it needs to rely completely on the manpower of rescue personnel, has insufficient obstacle crossing ability, is easy to cause unnecessary physical loss during transportation, and has relatively low work efficiency. The existing technology CN215553307U - a rescue carrying hand trolley for fire brigade discloses a trolley capable of adjusting to parallel state, vertical state and inclined state according to the slope of the walking route, which can better save the physical energy of the carrying firefighter, adopts movable baffle plug-in fixing mode to avoid overturning of the carried box during carrying, but its disadvantage is that the structure has insufficient carrying capacity and lacks protection for the transported device. Safety problems are easy to occur during transportation in complex road conditions, endangering life and property safety.

[0004] Therefore, there is an urgent need for a trolley device that can save the physical energy of rescue personnel, has good carrying capacity and is stable enough to enable it to quickly transport equipment to the rescue site for rescue in complex road conditions. SUMMARY

[0005] The present application provides a motor-assisted laser cutting trolley device, which is equipped with a driving mechanism and a handrail operating mechanism, so that the emergency rescue trolley device can be assisted by the driving mechanism to realize electric power assistance in complex road conditions, and the handrail operating mechanism can ensure the stability of the laser during operation and the high precision of cutting.

[0006] The technical solution adopted by the present application to solve its technical problems is a motor-assisted laser cutting trolley device, which comprises a frame, a laser cutting mechanism, a driving mechanism and a handrail operating mechanism.

[0007] The laser cutting mechanism is detachably arranged on the frame, and the laser cutting mechanism can accurately control the lifting height and pitch angle of the laser during laser cutting operation. The pair of handrail operating mechanisms are detachably arranged at the two ends of the frame. The pair of driving mechanisms are arranged at the bottom of the frame and are electrically connected with the handrail operating mechanisms. The driving mechanisms can adjust the rotating speed of the driving mechanisms according to the pressure on the handrail operating mechanisms on different sides.

[0008] Preferably, the handrail operating mechanism comprises a front end handrail, a handrail connecting rod, a telescopic support rod and a pressure sensor.

[0009] The handrail connecting rod is detachably arranged at the two ends of the frame. The front end handrail is connected with the handrail connecting rod. The telescopic support rod is telescopically arranged on the frame. The pressure sensor is arranged on the front end handrail to detect the pressure applied to the front end handrail. The pressure sensor is electrically connected with the driving mechanism.

[0010] Preferably, the telescopic support rod comprises a fixed rod and a telescopic rod. The fixed rod is fixedly arranged on the frame. The telescopic rod is telescopically arranged in the fixed rod, and the sum of the lengths of the fixed rod and the telescopic rod is greater than the sum of the heights of the frame and the driving mechanism.

[0011] Preferably, the driving mechanism comprises a driving motor, a walking wheel and a controller.

[0012] The walking wheel is detachably arranged at the bottom of the frame. The driving motor is arranged in the hub of the walking wheel. The driving motor is connected with the walking wheel to drive the walking wheel to rotate. The controller is arranged on the frame and is electrically connected with the driving motor and the pressure sensor. The pressure sensor adjusts the rotating speed of the driving motor through the controller.

[0013] Preferably, the handrail connecting rod is further provided with an emergency brake. The emergency brake is electrically connected with the driving motor.

[0014] Preferably, the laser cutting mechanism comprises a gimbal, a laser emitter, a laser and a power box. The gimbal, the power box support frame and the laser are arranged on the frame. The power box is arranged at the top of the power box support frame, and the laser is located at the side of the power box support frame. The laser emitter is arranged at the end of the frame. The gimbal, the laser emitter and the laser are electrically connected with the power box.

[0015] Preferably, the laser is arranged on the side of the power box support frame through a damping support. The damping support comprises a damping spring shock absorber, a rubber gasket and a metal support.

[0016] One end of the metal support is fixedly arranged on the vehicle frame, and the other end of the metal support is connected with the laser; one end of the damping spring shock absorber is connected with the bottom of the laser, and the other end of the damping spring shock absorber is fixedly arranged on the vehicle frame, and the contact surface between the damping spring shock absorber and the laser is provided with the rubber pad to reduce vibration.

[0017] Preferably, the metal support is connected with the laser through a connecting bolt, one end of the metal support is provided with a mounting hole for connecting the laser, and the length of the mounting hole is greater than the diameter of the connecting bolt, so that the connecting bolt can slide up and down in the mounting hole.

[0018] The application also provides a control method of the emergency rescue cart device, which is based on the laser forced entry cart device with motor assistance, and is characterized in that the control method of the emergency rescue cart device comprises the following steps:

[0019] The pair of handrail operating mechanisms are arranged at the two ends of the vehicle frame, and the pair of handrail operating mechanisms arranged at the same end of the vehicle frame are arranged on the two sides of the vehicle frame respectively; the front end handrails of the handrail operating mechanisms are each provided with a pressure sensor, and the pressure is converted into an electric signal by a signal conditioning circuit and input into a controller to adjust the rotating speed of the driving mechanism by the controller.

[0020] Preferably, the controller is provided with a lower pressure threshold and an upper pressure threshold; when the pressure detected by the pressure sensor is lower than the lower pressure threshold, the driving mechanism is stationary; when the pressure detected by the pressure sensor is in the range of the lower pressure threshold to the upper pressure threshold, the driving mechanism rotates and keeps a constant speed; when the pressure detected by the pressure sensor exceeds the upper pressure threshold, the driving mechanism is linearly accelerated, and when the pressure detected by the pressure sensor falls below the upper pressure threshold, the driving mechanism rotates at the current speed.

[0021] The application has the following beneficial effects:

[0022] The laser forced entry cart device with motor assistance provided by the application can avoid the traditional rescue cart which can only be pushed to walk by manpower, and the linkage of the handrail operating mechanism and the driving mechanism can further facilitate the user to operate the driving mechanism to walk with assistance, so that the cart can realize electric assistance in complex road conditions, the laser cutting mechanism on the cart can be quickly transported to the rescue site, the setting of the driving mechanism can save valuable time for emergency rescue, avoid unnecessary physical loss of rescue personnel during transportation, and improve the success rate and safety of rescue.

[0023] And, the emergency rescue cart device is provided with a pressure sensor at the front end handle of the emergency rescue cart device, the speed of the cart is controlled in real time according to different pressure, and the differential speed of the driving motor in the wheel hub is controlled according to the pressure difference of the left and right sides, so that the steering function is realized. Under the premise of safety, the convenience of operation is greatly improved, and the physical strength of personnel is saved.

[0024] Further, the emergency rescue cart device is lightweight designed based on the topological optimization method under the condition of ensuring the strength and safety of the cart equipment, the redundant structure is removed, the overall weight is reduced, the material is saved, and the economy is improved. The detachable and modularized setting of the laser cutting mechanism and the handle operating mechanism on the frame of the cart device can ensure that the working modules do not interfere with each other in the operation process, and can select appropriate modules to carry out rescue according to the actual disaster relief situation, so as to achieve the treatment according to the disease and the local conditions. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram of the laser breaking and opening cart device with motor assistance of the application;

[0026] Figure 2 is the front view of the overall structure of the laser breaking and opening cart device with motor assistance of the application;

[0027] Figure 3 is the schematic diagram of the handle operating mechanism of one end of the laser breaking and opening cart device with motor assistance of the application after being disassembled;

[0028] Figure 4 is the structure schematic diagram of the driving mechanism of the laser breaking and opening cart device with motor assistance of the application;

[0029] Figure 5 is the structure schematic diagram of the damping support of the laser breaking and opening cart device with motor assistance of the application;

[0030] Figure 6 is the structure schematic diagram of the metal support in the damping support of the laser breaking and opening cart device with motor assistance of the application;

[0031] Figure 7 is the circuit diagram of the pressure sensor, the controller and the driving motor in the laser breaking and opening cart device with motor assistance of the application;

[0032] Figure 8 is the schematic diagram of the cloud platform, the controller and the driver in the laser breaking and opening cart device with motor assistance of the application;

[0033] Figure 9 is the topological optimization analysis diagram of the laser breaking and opening cart device with motor assistance of the application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1, front handrail; 2, laser transmitter; 3, holder; 4, power box; 5, pressure sensor; 6, emergency brake; 7, telescopic support rod; 8, laser; 9, walking wheel; 10, power box support frame; 11, frame; 12, laser gas analyzer; 13, controller; 14, handrail connecting rod; 15, drive motor; 16, suspension assembly; 17, rubber pad; 18, damping spring shock absorber; 19, metal support. DETAILED DESCRIPTION

[0036] The application will be further described below in conjunction with the drawings and examples.

[0037] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without the specific details set forth in this description in this regard, some implementations have not been described in detail in order not to unnecessarily obscure the application. Accordingly, the particular embodiments described in this description are shown by way of example and not by way of limitation.

[0038] In the description of the embodiments of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0040] As shown in Figure 1 and Figure 2 A motor-assisted laser breaking cart device, the motor-assisted laser breaking cart device comprising: a frame 11, a laser cutting mechanism, a driving mechanism and a handrail operating mechanism; the laser cutting mechanism is detachably arranged on the frame 11, and the laser cutting mechanism can accurately control the lifting height and the pitch angle of the laser during laser cutting operation; the handrail operating mechanism is arranged in pairs at both ends of the frame 11; the driving mechanism is arranged in pairs at the bottom of the frame 11, and the driving mechanism is electrically connected with the handrail operating mechanism; the driving mechanism can adjust the rotating speed of the driving mechanism according to the pressure on the handrail operating mechanism of different sides.

[0041] In this embodiment, the motor-assisted laser breaking cart device is provided with a driving mechanism, which can assist the emergency rescue cart device to move by the driving mechanism, avoiding the traditional rescue cart which can only move by manpower. The linkage of the handrail operating mechanism and the driving mechanism further facilitates the user to operate the driving mechanism to assist the movement. The driving mechanism can provide electric power assistance for the cart in complex road conditions, so that the laser cutting mechanism on the cart can be quickly transported to the rescue site. The driving mechanism can save valuable time for emergency rescue and avoid unnecessary physical loss of rescue personnel during transportation, thereby improving the success rate and safety of rescue. In addition, the handrail operating mechanism can further stabilize the frame 11 after the cart is transported to the rescue site, providing stable and firm support for the operation of the laser cutting mechanism, avoiding shaking during the laser cutting process, and improving the precision of laser cutting.

[0042] Referring to Figure 2 and Figure 3 , the handrail operating mechanism includes a front end handrail 1, a handrail connecting rod 14, a telescopic support rod 7, and a pressure sensor 5. The handrail connecting rod 14 is detachably arranged at both ends of the frame 11, the front end handrail 1 is connected with the handrail connecting rod 14, the telescopic support rod 7 is arranged on the frame 11 in a telescopic manner, the pressure sensor 5 is arranged on the front end handrail 1 to detect the pressure applied to the front end handrail 1, and the pressure sensor 5 is electrically connected with the driving mechanism. The telescopic support rod 7 includes a fixed rod and a telescopic rod. The fixed rod is fixedly arranged on the frame 11, and the telescopic rod is arranged in the fixed rod in a telescopic manner, and the sum of the lengths of the fixed rod and the telescopic rod is greater than the sum of the heights of the frame 11 and the driving mechanism.

[0043] In this embodiment, the telescopic telescopic support rod 7 in the handrail operating mechanism can support the emergency rescue cart device on the ground after the laser cutting mechanism is transported to the rescue point, ensuring the stability of the laser 8 during operation and the high precision of cutting. The front end handrail 1 is further convenient for the user to hold, and the pressure sensor 5 arranged on the front end handrail 1 can efficiently collect the gripping force applied by the user on the handrail to facilitate the user to control and adjust the speed and steering of the driving mechanism through the handrail. In addition, the emergency rescue cart device can realize the forward and backward pushing and pulling movement of two rescue personnel, or can be converted to be controlled by one person according to the specific situation of the rescue environment. The front end handrail 1, the handrail connecting rod 14, and the telescopic support rod 7 are detachable and optional modules, which can be considered whether to assemble the modules according to the rescue site.

[0044] As Figure 4As shown, the driving mechanism includes a driving motor 15, a walking wheel 9 and a controller 13; the walking wheel 9 is detachably arranged at the bottom of the frame 11, the driving motor 15 is arranged in the hub of the walking wheel 9, the driving motor 15 is connected with the walking wheel 9 to drive the walking wheel 9 to rotate, the controller 13 is arranged on the frame 11 and is electrically connected with the driving motor 15 and the pressure sensor 5, and the pressure sensor 5 adjusts the rotating speed of the driving motor 15 through the controller 13. The emergency brake 6 is further arranged on the handrail connecting rod 14, and the emergency brake 6 is connected with the driving motor 15.

[0045] In this embodiment, the driving mechanism of the device adopts a hub motor structure design, and the driving motor 15 is built in the hub of the walking wheel 9. When the equipment is in the running state, the pressure sensor 5 collects the pressure of the left and right handles, the Arduino controller 13 controls the rotating speed of the driving motor 15 in the left and right hubs, and the speed self-adaptive control of the cart is realized; at the same time, according to the pressure difference of the left and right handles, the rotating speed of the driving motor 15 in the left and right hubs is adjusted, and the steering function is realized through the rotating speed difference. The hub of the walking wheel 9 is closely connected with the main body structure of the frame 11 through the precisely designed suspension assembly 16. The controller 13 is preferably an Arduino controller 13, and the driving motor 15 is preferably a direct current servo motor. In the walking process of the emergency rescue cart device, when the driving motor 15 assists, the pressure sensor 5 collects the pressure of the left and right handles and the pressure difference, the Arduino controller 13 controls the rotating speed of the driving motor 15 in the left and right hubs, and the emergency brake 6 realizes the vehicle braking in the emergency situation, so as to realize the speed self-adaptive control and pressure sensor steering of the cart, reduce the physical consumption of the rescue personnel during operation, and improve the transportation work efficiency. In an embodiment, the emergency brake 6 is a brake device in a loader wet type electric drive axle in the prior art 2025105976776, the brake device includes a stop ring, a stop sleeve and a brake mechanism; the stop ring is connected with the output shaft of the driving motor 15, and the outer wall of the stop ring is connected with the outer friction plate; the stop sleeve is connected with the output shaft of the driving motor 15, and the inner wall of the stop sleeve is connected with the inner friction plate; the brake mechanism is used to drive the inner friction plate and the outer friction plate to abut, so as to perform the locking action.

[0046] In a preferred embodiment, the laser cutting mechanism comprises a holder 3, a laser emitter 2, a laser 8 and a power box 4, the holder 3, the power box support frame 10 and the laser 8 are arranged on the frame 11, the power box 4 is arranged on the top of the power box support frame 10 and the laser 8 is arranged on the side of the power box support frame 10, the laser emitter 2 is arranged on the end of the frame 11, and the holder 3, the laser emitter 2 and the laser 8 are electrically connected with the power box 4. At the front end of the trolley device, the holder 3 and the controller 13 are arranged in sequence, and these components cooperate to accurately control the lifting height and the pitch angle of the laser head during laser cutting operation. Among them, the holder 3 device supports receiving and executing debugging instructions through a standard serial port debugging assistant. Further, a laser gas detector 12 is arranged on the frame 11 to measure flammable and explosive gases at the disaster site, and if there are flammable and explosive gases, the equipment is powered off to ensure the safety of the rescue environment.

[0047] As shown in Figure 5 and Figure 6 , the laser 8 is arranged on the side of the power box support frame 10 through a damping support, which comprises a damping spring shock absorber 18, a rubber pad 17 and a metal support 19; one end of the metal support 19 is fixedly arranged on the frame 11 and the other end of the metal support 19 is connected with the laser 8, one end of the damping spring shock absorber 18 is connected with the bottom of the laser 8, the other end of the damping spring shock absorber 18 is fixedly arranged on the frame 11, and the rubber pad 17 is arranged on the contact surface between the damping spring shock absorber 18 and the laser 8 to reduce vibration. The metal support 19 is connected with the laser 8 through connecting bolts, one end of the metal support 19 is provided with a mounting hole for connecting the laser 8, and the length of the mounting hole is greater than the diameter of the connecting bolt so that the connecting bolt can slide up and down in the mounting hole.

[0048] In this embodiment, the damping support is arranged to fix the laser 8 based on the requirement of reducing the influence of vibration on the accuracy of the laser 8 during operation. The damping spring shock absorber 18 is selected to isolate the low-frequency vibration caused by the trolley device during movement, and the rubber pad 17 is arranged to absorb high-frequency vibration caused by the driving motor 15 and the heat sink. The rubber pad 17 is arranged on the contact surface between the damping spring shock absorber 18 and the laser 8. The metal support 19 plays a fixing role, and the mounting hole of the metal support 19 leaves a certain up-and-down sliding space at the connection between the metal support 19 and the laser 8, so as to cooperate with the damping spring shock absorber 18 to weaken the vibration.

[0049] Further, as shown in Figure 7 , the application also provides a control method of an emergency rescue trolley device, which is based on the above-mentioned laser forced entry trolley device with motor assistance, and the control method of the emergency rescue trolley device comprises the following steps:

[0050] The pair of handrail operating mechanisms are arranged at both ends of the frame 11, and the pair of handrail operating mechanisms arranged at the same end of the frame 11 are arranged at both sides of the frame 11. The pressure sensor 5 is arranged on the front end of the handrail 1 of the handrail operating mechanism. The pressure is converted into an electrical signal by a signal conditioning circuit and input into the controller 13 to adjust the rotation speed of the driving mechanism by the controller 13.

[0051] In an embodiment, the controller 13 is provided with a lower pressure threshold and an upper pressure threshold. When the pressure detected by the pressure sensor 5 is lower than the lower pressure threshold, the driving mechanism is stationary. When the pressure detected by the pressure sensor 5 is in the range of the lower pressure threshold to the upper pressure threshold, the driving mechanism rotates at a constant speed. When the pressure detected by the pressure sensor 5 exceeds the upper pressure threshold, the driving mechanism linearly accelerates until the pressure detected by the pressure sensor 5 falls below the upper pressure threshold, and the driving mechanism rotates at the current speed.

[0052] Based on the above control method, the speed adaptive control method of the motor-assisted laser forced entry trolley device is as follows: the pressure sensor 5 is installed on the left and right handles of the trolley. The pressure is converted into an electrical signal by a signal conditioning circuit and input into the Arduino controller 13, so as to output a control instruction to control the rotation speed of the hub motor, thereby achieving the effect of speed adaptive control. When the pressure detected by the pressure sensor 5 is lower than the lower pressure threshold, the driving mechanism is stationary. When the pressure detected by the pressure sensor 5 is in the range of the lower pressure threshold to the upper pressure threshold, the driving mechanism rotates at a constant speed. When the pressure detected by the pressure sensor 5 exceeds the upper pressure threshold, the driving mechanism linearly accelerates until the pressure detected by the pressure sensor 5 falls below the upper pressure threshold, and the driving mechanism rotates at the current speed.

[0053] Further, the steering control of the motor-assisted laser forced entry trolley device is as follows: the greater the pressure difference detected by the left and right pressure sensors 5, the stronger the steering demand. The greater the pressure difference, the greater the acceleration of the outer wheel and the greater the deceleration of the inner wheel. In an embodiment, when the left pressure is 200N and the right pressure is 50N, the pressure difference between the left and right sides is 150N, and the controller 13 receives a right turn instruction. The driving motors 15 on both sides generate a speed difference, at this time the left wheel accelerates to 200rpm and the right wheel decelerates to 80rpm, thereby making the emergency rescue trolley device turn right.

[0054] Based on the above-mentioned steering control of the emergency rescue cart device, in an embodiment, when the vehicle speed is equal to 0.8 m / s, the emergency rescue cart device needs to be slowly and accurately steered, when the left hand pressure is 120 N, the right hand pressure is 30 N, the pressure difference is 90 N, the left wheel drive motor 15 is increased to 13 rpm (+18%), the right wheel drive motor 15 is decreased to 7 rpm (-22%), and the steering radius is approximately 1.8 m. When the vehicle speed is equal to 1.5 m / s, the emergency rescue cart device needs to avoid obstacles in an emergency, and the sudden obstacle triggers the left hand pressure to be 300 N and the right hand pressure to be 0 N, then the left wheel drive motor 15 is temporarily increased to 25 rpm (+120%), and the right wheel is stopped (0 rpm), so that the steering radius of the emergency rescue cart device is reduced to 0.6 m within 0.3 seconds, and rapid avoidance is realized. When the emergency rescue cart device needs to be kept straight for a long distance, the pressure difference between the left and right sides is continuously less than 10 N, and the system automatically adjusts the wheel speed (±2 rpm).

[0055] Further, as shown in Figure 9 To meet the lightweight requirements of the cart equipment, a topology optimization module based on Ansys workbench software is used for lightweight design, and the response constraint is set to 90% of the mass. The structure of the cart frame 11 of the cart type laser breaking equipment is topologically optimized. According to the simplified three-dimensional model of the cart after optimization, the weight is 19.5 kg, and the weight is reduced by 2.6 kg.

[0056] Under the condition of ensuring the strength and safety of the cart equipment, the structure of the equipment is designed to be lightweight based on the topology optimization method, the redundant structure is removed, the overall weight is reduced, and the convenience and operability of the equipment are improved. Topology optimization is a structure design method based on mathematical algorithm, and the core goal is to realize the optimal lightweight design of the structure by redistributing the distribution of materials in space under the premise of meeting the mechanical properties (such as stiffness, strength, vibration frequency, etc.). It breaks through the experience limit of traditional design, and directly generates efficient material layout through computer simulation, and is considered as one of the most revolutionary technologies in the field of structure design.

[0057] The technical features of the above embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0058] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A motor-assisted laser demolition cart device, characterized in that: The motor-assisted laser demolition cart device comprises: a frame, a laser cutting mechanism, a driving mechanism and an armrest operating mechanism; The laser cutting mechanism is detachably arranged on the frame and can accurately adjust the lifting height and pitch angle of the laser during laser cutting operations. The armrest operating mechanisms are detachably arranged in pairs at both ends of the frame. The driving mechanisms are arranged in pairs at the bottom of the frame and are electrically connected to the armrest operating mechanisms. The driving mechanism can adjust the rotation speed of the driving mechanism according to the pressure on the armrest operating mechanisms on different sides.

2. The motor-assisted laser demolition cart device according to claim 1, characterized in that: The armrest operating mechanism includes a front armrest, an armrest connecting rod, a telescopic support rod and a pressure sensor; The armrest connecting rod is detachably arranged at both ends of the frame, the front armrest is connected to the armrest connecting rod, the telescopic support rod is telescopically arranged on the frame, the pressure sensor is arranged on the front armrest to detect the pressure applied to the front armrest, and the pressure sensor is electrically connected to the driving mechanism.

3. The motor-assisted laser demolition cart device according to claim 2, characterized in that: The telescopic support rod includes a fixed rod and a telescopic rod, the fixed rod is fixedly arranged on the frame, the telescopic rod is telescopically arranged in the fixed rod, and the sum of the lengths of the fixed rod and the telescopic rod is greater than the sum of the heights of the frame and the driving mechanism.

4. The motor-assisted laser demolition cart device according to claim 2, characterized in that: The driving mechanism includes a driving motor, a running wheel and a controller; The traveling wheel is detachably arranged at the bottom of the frame, the driving motor is arranged in the wheel hub of the traveling wheel, the driving motor is connected to the traveling wheel to drive the traveling wheel to rotate, the controller is arranged on the frame and is electrically connected to the driving motor and the pressure sensor, and the pressure sensor adjusts the rotation speed of the driving motor through the controller.

5. The motor-assisted laser demolition cart device according to claim 4, characterized in that: The emergency brake component is also provided on the armrest connecting rod, and the emergency brake component is electrically connected to the driving motor.

6. The motor-assisted laser demolition cart device according to claim 1, characterized in that: The laser cutting mechanism includes a pan-tilt platform, a laser emitter, a laser and a power box. The pan-tilt platform, the power box support frame and the laser are all arranged on the frame. The power box is arranged on the top of the power box support frame and the laser is located on the side of the power box support frame. The laser emitter is arranged at the end of the frame. The pan-tilt platform, the laser emitter and the laser are all electrically connected to the power box.

7. The motor-assisted laser demolition cart device according to claim 6, characterized in that: The laser is arranged on the side of the power box support frame through a shock-absorbing bracket, and the shock-absorbing bracket includes a damping spring shock absorber, a rubber gasket and a metal bracket; One end of the metal bracket is fixedly mounted on the vehicle frame and the other end of the metal bracket is connected to the laser. One end of the damping spring shock absorber is connected to the bottom of the laser. The other end of the damping spring shock absorber is fixedly mounted on the vehicle frame. The rubber gasket is provided on the contact surface between the damping spring shock absorber and the laser to reduce vibration.

8. The motor-assisted laser demolition cart device according to claim 7, characterized in that: The metal bracket is connected to the laser via a connecting bolt. One end of the metal bracket is provided with a mounting hole for connecting the laser. The length of the mounting hole is greater than the diameter of the connecting bolt so that the connecting bolt can slide up and down in the mounting hole.

9. A control method for an emergency rescue cart device, the control method for the emergency rescue cart device being implemented based on the motor-assisted laser demolition cart device according to any one of claims 1 to 8, characterized in that: The control method of the emergency rescue cart device comprises the following steps: The armrest operating mechanisms are arranged in pairs at both ends of the frame. The paired armrest operating mechanisms located at the same end of the frame are respectively arranged on both sides of the frame. Pressure sensors are provided on the front end armrests of the armrest operating mechanisms. The pressure is converted into an electrical signal through a signal conditioning circuit and input into the controller to adjust the speed of the drive mechanism through the controller.

10. The control method of the emergency rescue cart device according to claim 9, characterized in that: A lower pressure threshold and an upper pressure threshold are set in the controller. When the pressure detected by the pressure sensor is lower than the lower pressure threshold, the driving mechanism stops; when the pressure detected by the pressure sensor is in the range from the lower pressure threshold to the upper pressure threshold, the driving mechanism rotates and maintains a constant speed; when the pressure detected by the pressure sensor exceeds the upper pressure threshold, the driving mechanism accelerates linearly until the pressure detected by the pressure sensor falls below the upper pressure threshold, at which time the driving mechanism locks the current speed rotation.

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