Aerial work safety protection vehicle

Abstract

The utility model discloses a high altitude operation safety protection car, including omni wheel car, folding arm module, still include car body module, elevating module, control system and differential, the utility model discloses the spring suspension universal wheel of omni wheel car cooperates with electric rudder wheel, combines laser radar three -level barrier and audible -visual alarm, ensures that personnel transport front equipment moves steadily, safely, hydraulic support leg and manual support leg collaborative support, provide stable basis for personnel high altitude transportation, elevating module adopts double chain multiplication structure and emergency descent system, guarantees personnel elevating process steady, and anti -fall mechanism further promotes transportation safety, the spring limit pin of folding arm module automatic lock and electromagnetic brake dual locking, ensure that high altitude operation position is stable, high reliability differential forms anti -fall protection, in -place detection device and elevating module interlock, avoid the risk of misoperation, all -round guarantee personnel high altitude operation safety.

Description

Technical Field

[0001] This utility model relates to the field of safety protection vehicle technology, specifically to a high-altitude operation safety protection vehicle. Background Technology

[0002] Working at heights is a common practice in fields such as power, communications, construction, and rail transportation, where workers often need to inspect, install, or maintain equipment at elevated positions. Traditional methods rely heavily on scaffolding, ladders, or simple lifting platforms, which suffer from time-consuming setup, poor flexibility, and low safety, especially in complex terrain or confined spaces. In recent years, with the development of engineering machinery technology, aerial work platforms have gradually become essential equipment for ensuring operational safety and efficiency.

[0003] Most existing aerial work platforms adopt scissor lift or telescopic boom structures. Although they have certain lifting functions, they still have many shortcomings in practical applications: for example, they have poor mobility and are difficult to adapt to narrow or uneven working environments; the support system is not stable enough and is prone to overturning when working on slopes or soft ground; the lifting and boom movement control precision is not high, and there is a lack of effective linkage control and safety protection mechanisms; in addition, the work platform is inconvenient to enter and exit, lacks complete safety protection measures, and workers are at risk of falling during entry, exit and operation.

[0004] Especially in scenarios with extremely high safety requirements, such as rail transit and power maintenance, the limited working space, dispersed work points, and frequent site changes place higher demands on the mobility, stability, and safety of equipment. Existing equipment often cannot achieve precise positioning, smooth lifting and reliable locking, and has weak emergency response capabilities in case of emergencies, lacking safety protection design for the entire operation process. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a high-altitude work safety protection vehicle. It solves the problems that existing equipment often cannot achieve accurate positioning, smooth lifting and reliable locking, and has weak emergency response capabilities in case of emergencies, and lacks safety protection design for the entire operation process.

[0006] To achieve the above objectives, this utility model provides a high-altitude work safety protection vehicle, including an omnidirectional wheel vehicle, a folding arm module, a cargo box module, a lifting module, a control system, and a differential. The omnidirectional wheel vehicle includes a seat housing and a movable structure disposed in the seat housing. The movable structure includes two electric steering wheels and two omnidirectional wheels, and the omnidirectional wheels adopt a spring suspension structure. The articulated arm module includes a boom and a forearm. The other end of the boom is hinged to the forearm. The differential is mounted on the forearm. An electromagnetic brake is provided at the hinge point between the forearm and the boom. The electromagnetic brake is electrically connected to the control system.

[0007] Preferably, the seat housing is further provided with a hydraulic structure, which includes a hydraulic station, four hydraulic outriggers located at the four corners of the seat housing, and a pressure gauge for monitoring the pressure of the hydraulic station.

[0008] Preferably, the articulated arm module further includes a slewing support assembly, which includes a mounting plate, a spring limit pin, a rotation limit block, and a position sensor. The mounting plate is fixed to the top of the lifting module, and one end of the boom is rotatably connected to the mounting plate through the slewing support assembly. The boom is provided with four limit pin holes. The spring limit pin consists of a cylindrical pin head, a guide rod, a pre-compression spring, and a limit retaining ring, which can realize automatic locking of the boom in the action position.

[0009] Preferably, the carriage module includes a frame, a work platform, an ejection platform door, an entry / exit tilting rod, and an exit tilting door. The frame is located on both sides of the lifting module. The work platform is located inside the frame. The frame has two symmetrical ejection platform doors. The exit tilting door is located on the frame and is hinged to the frame. The exit tilting door is equipped with an entry / exit tilting rod, which is a folding protective railing structure.

[0010] Preferably, the lifting module includes a support assembly, a fixed gantry, a lifting cylinder, a movable gantry, and a transmission chain. The support assembly is fixed to the top of the seat shell of the omnidirectional vehicle. The fixed gantry is fixedly connected to the support assembly, and the movable gantry is slidably connected to the fixed gantry and connected to the carriage module. The lifting cylinder is mounted on the support assembly, and its output end is connected to the movable gantry via the transmission chain. A sprocket is mounted on the top of the piston rod of the lifting cylinder. One end of the transmission chain is fixed to the fixed gantry, and the other end is fixed to the movable gantry. The transmission chain adopts a double-chain multiplication structure. The smooth lifting and lowering of the movable gantry can be achieved through the meshing of the transmission chain and the pulley-type sprocket. The lifting cylinder is connected to the hydraulic station of the omnidirectional vehicle.

[0011] Preferably, the control system includes a processor, a control panel, and a lidar. The control panel is fixed to the side wall of the entire vehicle body housing and is equipped with a touch screen and an emergency stop button. The processor is electrically connected to the electric steering wheel, hydraulic station, electromagnetic brake of the folding arm module, lifting cylinder of the lifting module, and lidar of the omnidirectional wheel vehicle, respectively, and can realize coordinated control of equipment movement, lifting, and folding arm actions.

[0012] Preferably, the omnidirectional wheel vehicle is also equipped with a battery assembly, which includes a storage battery and a power switch, and the storage battery is electrically connected to the power switch.

[0013] Preferably, the omnidirectional wheel vehicle is equipped with manual outriggers on both sides of the seat housing, which, when used in conjunction with hydraulic outriggers, can improve the stability of the equipment when parked. The seat housing is equipped with tilt sensors, which are electrically connected to the control system.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the combination of spring-suspended universal wheels and electric steering wheels in an omnidirectional wheel vehicle, along with three-level obstacle avoidance via laser radar and audible and visual alarms, to ensure smooth and safe movement of the equipment before personnel transport. Hydraulic and manual outriggers work together to provide a stable foundation for high-altitude personnel transport. The lifting module adopts a double-chain multiplication structure and an emergency descent system to ensure smooth personnel lifting and lowering, and the anti-fall mechanism further enhances transport safety. 2. The spring limit pins of the articulated boom module automatically lock and the electromagnetic brake provide dual locking to ensure the stability of the working position at height; the high-reliability differential provides fall protection, and the positioning detection device is interlocked with the lifting module to avoid the risk of misoperation, thus comprehensively ensuring the safety of personnel working at height. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the omnidirectional wheel vehicle and control system structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the omnidirectional wheel vehicle of this utility model; Figure 4 This is a schematic diagram of the connection structure of the lifting module, the carriage module, and the folding arm module of this utility model; Figure 5 This is a schematic diagram of the spring limiting pin structure of this utility model; Figure 6 This is a schematic diagram showing the detailed structure of the carriage module of this utility model; Figure 7 This is a schematic diagram of the lifting module structure of this utility model; Figure 8 This is a schematic diagram of the working structure of the lifting module of this utility model; Figure 9 This is a schematic diagram of the overall structure of the folding arm module of this utility model; Figure 10 This is a schematic diagram of the slewing support component in the articulated arm module of this utility model.

[0016] The meanings of the labels in the diagram are as follows: 1. Omnidirectional wheel vehicle; 101. Seat shell; 1011. Manual outriggers; 1021. Electric steering wheel; 1022. Casters; 1031. Battery; 1032. Power switch; 1041. Hydraulic station; 1042. Hydraulic outriggers; 1043. Pressure gauge; 2. Carriage module; 201. Frame; 202. Working platform; 203. Push-out platform door; 204. Carriage entry / exit tilting lever; 205. Carriage exit tilting door; 3. Lifting module; 301. Support assembly; 302. Vehicle body fixed mast; 303. Lifting cylinder; 305. Movable mast; 306. Drive chain; 4. Folding arm module; 401. Boom; 402. Arm; 403. Slewing support assembly; 4031. Mounting plate; 4032. Rotary limit block; 4033. Position sensor; 4034. Spring limit pin; 404. Electromagnetic brake; 5. Control system; 501. Processor; 502. Control panel; 503. LiDAR; 6. Differential. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-10 This embodiment provides a high-altitude work safety protection vehicle, including an omnidirectional wheel vehicle 1, a folding arm module 4, a cargo box module 2, a lifting module 3, a control system 5, and a differential 6; The omnidirectional wheel vehicle 1 includes a seat housing 101, a moving structure and a hydraulic structure disposed in the seat housing 101. The moving structure includes two electric steering wheels 1021 and two omnidirectional wheels 1022, the omnidirectional wheels 1022 adopting a spring suspension structure. The hydraulic structure includes a hydraulic station 1041, four hydraulic outriggers 1042 disposed at the four corners of the seat housing 101, and a pressure gauge 1043 for monitoring the pressure of the hydraulic station 1041. The articulated boom module 4 includes a boom 401, a forearm 402, and a slewing support assembly 403. The slewing support assembly 403 includes a mounting plate 4031, a spring limit pin 4034, a rotation limit block 4032, and a position sensor 4033. The mounting plate 4031 is fixed to the top of the lifting module 3. One end of the boom 401 is rotatably connected to the mounting plate 4031 through the slewing support assembly 403, and the other end of the boom 401 is hinged to the forearm 402. A differential 6 is installed on the forearm 402. The boom 401 has four limit pin holes. The spring limit pin 4034 consists of a cylindrical pin head, a guide rod, a pre-compression spring, and a limit retaining ring, which can realize the automatic locking of the boom 401 in the action position. An electromagnetic brake 404 is provided at the hinge point between the forearm 402 and the boom 401. The electromagnetic brake 404 is electrically connected to the control system 5.

[0019] In summary, the improvement of this embodiment lies in: This utility model ensures smooth and safe equipment movement before personnel transport by using the spring-suspended universal wheels 1022 of the omnidirectional wheel vehicle 1 in conjunction with the electric steering wheel 1021; the spring limit pin 4034 of the articulated arm module 4 automatically locks and the electromagnetic brake 404 double locks to ensure the stability of the high-altitude operation position; the hook is firmly connected to the differential 6 to form a fall protection, and the positioning detection device is interlocked with the lifting module 3 to avoid the risk of misoperation, thus comprehensively ensuring the safety of personnel working at height.

[0020] Based on the above, other structures also need to be disclosed in detail, such as: Please see Figure 5 The carriage module 2 includes a frame 201, a work platform 202, an ejection platform door 203, an entry / exit tilting bar 204, and an exit tilting door 205. The frame 201 is located on both sides of the lifting module 3. The work platform 202 is located inside the frame 201. The frame 201 is symmetrically provided with two ejection platform doors 203. The exit tilting door 205 is provided on the frame 201. The exit tilting door 205 is hinged to the frame 201, and the exit tilting door 205 is provided with an entry / exit tilting bar 204. The entry / exit tilting bar 204 is a folding protective railing structure. By opening the ejection platform door 203 of the carriage module 2 to enter and lowering the exit tilting door 205, one can walk out from inside the carriage module 2 to carry out high-altitude operations.

[0021] Please see Figure 6 and Figure 7The lifting module 3 includes a support assembly 301, a vehicle body fixed mast 302, a lifting cylinder 303, a movable mast 305, and a transmission chain 306. The vehicle body support assembly 301 is fixed to the top of the seat shell 101 of the omnidirectional wheel vehicle 1. The vehicle body fixed mast 302 is fixedly connected to the support assembly 301, and the movable mast 305 is slidably connected to the vehicle body fixed mast 302 and connected to the carriage module 2. The lifting cylinder 303 is mounted on the support assembly 301. The output end of the lifting cylinder 303 is connected to the movable mast 305 via the transmission chain 306. A sprocket is provided on the top of the piston rod of the lifting cylinder 303. One end of the transmission chain 306 is fixed to the vehicle body fixed mast 302, and the other end is fixed to the movable mast 305. The transmission chain 306 adopts a double chain multiplication structure. The 6-type sprocket engages with the fixed pulley sprocket to achieve smooth lifting and lowering of the movable gantry 305. The lifting cylinder 303 is connected to the hydraulic station 1041 of the omnidirectional wheel vehicle 1. When lifting is required, the hydraulic station 1041 supplies high-pressure oil to the lifting cylinder 303, driving the output end (piston rod) of the lifting cylinder 303 to extend and retract. A sprocket is installed at the top of the piston rod of the lifting cylinder 303. One end of the transmission chain 306 is fixed to the fixed gantry 302 of the vehicle body, and the other end is fixed to the movable gantry 305. The transmission chain 306 meshes with the pulley sprocket. The transmission chain 306 adopts a double-chain multiplication structure. When the piston rod of the lifting cylinder 303 extends, it pulls the transmission chain 306 along the movable pulley sprocket. With the guiding action of the pulley sprocket, the linear motion of the lifting cylinder 303 is converted into the motion of the movable gantry 305. The vertical lifting motion is achieved, and the double chain multiplication structure can achieve the effect of "1 times the cylinder stroke driving 2 times the lifting stroke of the movable gantry". At the same time, the two sets of symmetrical chains can ensure that the movable gantry 305 is subjected to balanced force. With the stable sliding cooperation between the movable gantry 305 and the fixed gantry 302 of the vehicle body, the smooth lifting of the movable gantry 305 and the connected carriage module 2 is finally achieved.

[0022] Please see Figure 2 and Figure 3 The control system 5 includes a processor 501, a control panel 502, a lidar 503, a controller, a mobile terminal, and external sensors. The control panel 502 is fixed to the side wall of the full-seat housing 101. The control panel 502 is equipped with a touch screen and an emergency stop button. The processor 501 is electrically connected to the electric steering wheel 1021 of the omnidirectional wheel vehicle 1, the hydraulic station 1041, the electromagnetic brake of the folding arm module 4, the lifting cylinder 303 of the lifting module 3, and the lidar 503, respectively, which can realize the coordinated control of equipment movement, lifting, and folding arm actions. The mobile terminal is set in the frame 201 of the carriage module 2.

[0023] Please see Figure 2 and Figure 3The omnidirectional wheel vehicle 1 is also equipped with a battery assembly, which includes a storage battery 1031 and a power switch 1032. The storage battery 1031 is electrically connected to the power switch 1032.

[0024] Please see Figure 1 The omnidirectional wheel vehicle 1 is equipped with manual outriggers 1011 on both sides of the seat housing 101, which are used in conjunction with hydraulic outriggers 1042 to improve the stability of the equipment when parked. The seat housing 101 is equipped with tilt sensors, which are electrically connected to the control system 5.

[0025] In summary, the working principle of this solution is as follows: Before operation, the electric steering wheel 1021 and two casters 1022 in the omnidirectional wheel vehicle 1 are operated to move to the working position. After the equipment reaches the working position, the hydraulic station 1041 is started and the hydraulic outriggers 1042 are automatically extended. At the same time, referring to the tilt sensor data, the vehicle body is leveled and the manual outriggers 1011 on both sides of the seat housing 101 are manually rotated to make them make stable contact with the ground, further improving the stability of the equipment. The pressure gauge 1043 is used to confirm that the hydraulic outrigger support pressure is normal. After the operators confirm that the equipment support is stable, they open the push-out platform door 203 of the carriage module 2, check that the anti-slip texture of the work platform 202 is intact and the surrounding guardrails are not deformed, and after entering the work platform, they close and lock the push-out platform door 203. They confirm that the mechanical door lock and the safety sensor switch are both in the locked state. The mobile control terminal in the carriage module 2 issues a command to drive the hydraulic station 1041 of the lifting module 3 to supply oil to the lifting cylinder 303. The output end of the lifting cylinder 303 drives the transmission chain 306 to move. Through the double chain multiplication structure, the movable gantry 305 is pulled to rise smoothly along the fixed gantry 302 of the vehicle body. After the working platform 202 reaches the target height, the electromagnetic brake 404 at the hinge between the forearm 402 and the boom 401 needs to be unlocked. The boom 401 is then rotated to an angle covering the roof working area (0°, ±90°, or 180°). The spring limit pin 4034 engages with the pin hole to mechanically lock the boom 401. Under normal conditions, the spring pusher head in the spring limit pin 4034 tends to extend, corresponding to 0°, ±90°, and 180° circumference of the boom 401. A pin hole is opened at a preset angle and precisely matched with the pin head. When the operator sends an unlocking command, the electromagnetic brake 404 is de-energized and releases the friction plate, releasing the rotation restriction of the forearm 402. At this time, the pin head of the spring limit pin 4034 is temporarily retracted due to the pressure of the lower surface of the boom 401 and is in a standby state. During the rotation of the boom 401, the pin head slides along the lower surface of the boom 401, and the spring remains dynamically compressed. When the boom 401 is aligned with the preset angle, the pin hole and the pin head axis are aligned, the pin head loses the pressure constraint, and the spring instantly releases potential energy to push it into the pin hole. The limit ring restricts excessive extension and forms a rigid mechanical lock. The boom 401 can no longer rotate. At this time, the safety belt hook is firmly connected to the differential 6 at the end of the forearm 402, and the hatch opening and flip door 205 is lowered to enter the roof for operation. After the operator engages the safety belt hook with the differential 6 connecting ring, they manually pull the safety belt to release the drum. When a fall causes the safety belt to pull out at a critical speed of 1 m / s, the differential 6 withstands the impact load with a destructive load of ≥8900N. The internal buffer component absorbs the energy and controls the locking distance to ≤0.2m. At the same time, the alarm switch is triggered, causing the equipment to stop operating and prompting a rescue. At this time, the rescuer presses the mechanical unlock button to retract the safety belt onto the drum, and the status is fed back to the control system. After the fault is cleared, the equipment resumes normal operation. The differential 6 is a speed-sensitive passive safety device that provides unobstructed movement during normal operation and instantaneous protection during falls. It complements the folding arm locking and lifting interlock, providing comprehensive protection for high-altitude operations.

[0026] After the operation is completed, retract the hatch 205, unlock the boom 402 and rotate it back to the zero position, start the lifting module 3 to descend, retract the hydraulic outriggers 1042 and manual outriggers 1011, and operate the omnidirectional wheel vehicle 1 to leave the work area.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-altitude work safety protection vehicle, comprising an omnidirectional wheel vehicle (1), a folding arm module (4), and further comprising a cargo box module (2), a lifting module (3), a control system (5), and a differential (6), characterized in that: The omnidirectional wheel vehicle (1) includes a seat housing (101) and a moving structure disposed in the seat housing (101). The moving structure includes two electric steering wheels (1021) and two universal wheels (1022). The universal wheels (1022) adopt a spring suspension structure. The articulated arm module (4) includes a large arm (401) and a small arm (402). The other end of the large arm (401) is hinged to the small arm (402). The differential (6) is mounted on the small arm (402). An electromagnetic brake (404) is provided at the hinge point between the small arm (402) and the large arm (401). The electromagnetic brake (404) is electrically connected to the control system (5).

2. The high-altitude work safety protection vehicle according to claim 1, characterized in that: The seat housing (101) is also provided with a hydraulic structure, which includes a hydraulic station (1041), four hydraulic outriggers (1042) located at the four corners of the seat housing (101), and a pressure gauge (1043) for monitoring the pressure of the hydraulic station (1041).

3. The high-altitude work safety protection vehicle according to claim 1, characterized in that: The articulated arm module (4) also includes a rotary support assembly (403), which includes a mounting plate (4031), a spring limit pin (4034), a rotation limit block (4032), and a position sensor (4033). The mounting plate (4031) is fixed to the top of the lifting module (3). One end of the boom (401) is rotatably connected to the mounting plate (4031) through the rotary support assembly (403). The boom (401) is provided with four limit pin holes. The spring limit pin (4034) is composed of a cylindrical pin head, a guide rod, a pre-compression spring, and a limit retaining ring, which can realize the automatic locking of the boom (401) in the action position.

4. The high-altitude work safety protection vehicle according to claim 2, characterized in that: The carriage module (2) includes a frame (201), a work platform (202), an ejection platform door (203), an entry / exit tilting rod (204), and an exit tilting door (205). The frame (201) is located on both sides of the lifting module (3). The work platform (202) is located inside the frame (201). The frame (201) is symmetrically provided with two ejection platform doors (203). The frame (201) is provided with an exit tilting door (205). The exit tilting door (205) is hinged to the frame (201), and the exit tilting door (205) is provided with an entry / exit tilting rod (204). The entry / exit tilting rod (204) is a folding protective railing structure.

5. The high-altitude work safety protection vehicle according to claim 4, characterized in that: The lifting module (3) includes a support assembly (301), a vehicle body fixed mast (302), a lifting cylinder (303), a movable mast (305), and a transmission chain (306). The support assembly (301) is fixed to the top of the seat shell (101) of the omnidirectional wheel vehicle (1). The vehicle body fixed mast (302) is fixedly connected to the support assembly (301). The movable mast (305) is slidably connected to the vehicle body fixed mast (302). The movable mast (305) is connected to the carriage module (2). The lifting cylinder (303) is mounted on the support assembly (301). The output end of the lifting cylinder (303) is connected to the movable gantry (305) via a transmission chain (306). A sprocket is provided on the top of the piston rod of the lifting cylinder (303). One end of the transmission chain (306) is fixed on the fixed gantry (302) of the vehicle body, and the other end is fixed on the movable gantry (305). The transmission chain (306) adopts a double chain multiplication structure. The movable gantry (305) can be smoothly lifted and lowered by meshing with the pulley sprocket through the transmission chain (306). The lifting cylinder (303) is connected to the hydraulic station (1041) of the omnidirectional wheel vehicle (1).

6. The high-altitude work safety protection vehicle according to claim 2, characterized in that: The control system (5) includes a processor (501), a control panel (502), a laser radar (503), a controller, a mobile terminal, and external sensors. The control panel (502) is fixed on the side wall of the full-seat housing (101). The control panel (502) is equipped with a touch screen and an emergency stop button. The processor (501) is electrically connected to the electric steering wheel (1021) of the omnidirectional wheel vehicle (1), the hydraulic station (1041), the electromagnetic brake of the folding arm module (4), the lifting cylinder (303) of the lifting module (3), and the laser radar (503), respectively, so as to realize the coordinated control of equipment movement, lifting, and folding arm actions. The mobile terminal is set in the frame (201) of the carriage module (2).

7. The high-altitude work safety protection vehicle according to claim 1, characterized in that: The omnidirectional wheel vehicle (1) is also equipped with a battery assembly, which includes a storage battery (1031) and a power switch (1032), and the storage battery (1031) is electrically connected to the power switch (1032).

8. The high-altitude work safety protection vehicle according to claim 2, characterized in that: The omnidirectional wheel vehicle (1) is equipped with manual outriggers (1011) on both sides of the seat housing (101), which are used in conjunction with hydraulic outriggers (1042) to improve the stability of the equipment when parked. The seat housing (101) is equipped with tilt sensors, which are electrically connected to the control system (5).

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