Overhead working vehicle anti-collision device

Abstract

The application relates to the technical field of aerial work vehicle protection, and discloses an aerial work vehicle anti-collision device, which comprises a work vehicle frame and further comprises: extension shells welded on the two sides of the surface of the work vehicle frame, the inner cavities of the extension shells are bolted with bases; the main frame structure is composed of main springs, and under the actions of a collision head, an inclination switch module, a signal amplifier and a controller, different angle collisions can be met, and the original state can be restored after the collision; in addition, a power mechanism can be used by a worker to drive a supporting frame to ascend and descend, so that the supporting frame limits the main spring in shaking and accelerates the recovery speed of the main spring after being deformed due to collision; in addition, the protective shell can also protect the device which is not working under the driving of the supporting frame and the transmission mechanism; and under the actions of a card and a fixing mechanism, the worker can be assisted to quickly disassemble and assemble the main spring, so that the main spring which is subjected to metal fatigue can be replaced.

Description

Technical Field

[0001] This invention relates to the field of aerial work platform protection technology, specifically to an aerial work platform anti-overrun device. Background Technology

[0002] A vehicle-mounted aerial work platform refers to a vehicle over 3 meters high that uses a hydraulic or electric system to control multiple hydraulic cylinders, enabling it to lift and operate vertically. Hydraulic-driven aerial work platforms are a modern and advanced type of mechanical equipment. Construction workers can work in the air using these platforms, and safety is guaranteed when used correctly. However, improper operation or failure to implement safety measures can make it an extremely dangerous aerial work operation.

[0003] Traditional anti-collision devices for aerial work platforms consist of a round steel bar fitted inside a steel pipe and then vertically installed on the work platform. When the round steel bar encounters an upper obstacle, it moves downward and pushes a lower limit switch to activate, thus stopping the vehicle and preventing a collision. However, this type of anti-collision device requires the work platform to collide vertically for it to function, which is quite limiting. Furthermore, the round steel bar is prone to bending and deformation during a collision, causing it to fail and requiring replacement, which increases the operating cost. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-overrun device for aerial work platforms to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-collision device for aerial work platforms, comprising a work platform frame, and further comprising: an extension shell welded to both sides of the surface of the work platform frame, a base bolted to the inner cavity of the extension shell, a signal amplifier fixed to one end of the base, a main spring sleeved in the inner cavity of one end of the base, a bumper sleeved at the other end of the main spring, a plurality of support columns arranged in a ring in the inner cavity of the bumper, and a tilt switch module snapped onto the surface of the support columns;

[0006] A housing fixed to one side of the surface of the extended shell, the inner cavity of the housing is provided with a power mechanism for lifting, and the surface of the power mechanism is provided with a support frame for limiting the main spring;

[0007] A transmission mechanism for transmission is provided on the other side of the support frame, and the surface of the transmission mechanism is provided with a protective shell for protection.

[0008] Fixed housings are fixed to both sides of the base surface. The inner cavity of the fixed housing has a card for fixing the main spring, and the surface of the card is provided with a fixing mechanism that allows the card to slide.

[0009] Preferably, the power mechanism includes a small motor, which is fixed to the inner cavity of the housing. The output shaft of the small motor is fixed with a drive gear, and the surface of the drive gear meshes with a driven gear plate. The support frame is fixed to one side of the surface of the driven gear plate.

[0010] Preferably, support rods are slidably provided on both sides of the inner cavity of the support frame, and one end of the support rod is fixed to the inner cavity of the extension shell.

[0011] Preferably, the transmission mechanism includes a drive gear plate, which is fixed to one side of the support frame surface. A driven gear meshes with the surface of the drive gear, and a force-bearing gear meshes with the surface of the driven gear. A rotating shaft is fixed inside the cavity of the force-bearing gear, and the protective shell is fixed to both sides of the rotating shaft.

[0012] Preferably, the driven gear and the force-bearing gear have different specifications, which makes the transmission mechanism and the power mechanism compatible.

[0013] Preferably, an auxiliary rotating rod is rotatably disposed on the surface of the driven gear, and auxiliary blocks are rotatably disposed on both sides of the surface of the auxiliary rotating rod. The auxiliary blocks are fixed to the surface of the extension shell and are also disposed on the surface of the rotating shaft.

[0014] Preferably, pads are fixed on both sides of the surface of the extended shell, and the pads are rounded at the corners.

[0015] Preferably, the fixing mechanism includes connecting blocks fixed to both sides of the card surface, a sliding rod slidably disposed in the inner cavity of the connecting block, both sides of the sliding rod being fixed to the inner cavity of the fixing shell, a second spring being sleeved on the surface of the sliding rod, one end of the second spring being fixed to the surface of the connecting block, and the other end of the second spring being fixed to the inner cavity of the fixing shell.

[0016] Preferably, the surface of the extension shell is provided with a plurality of water outlet holes, which are evenly distributed at the bottom of the extension shell.

[0017] Preferably, the inner cavity of the bumper is provided with a plurality of connecting grooves, which are also provided in the inner cavity of the base.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The main structure of this invention consists of a main spring. Under the action of the bumper, tilt switch module, signal amplifier and controller, it can meet the collision at different angles and can return to its original shape after the collision. In addition, the operator can use the power mechanism to drive the support frame to lift and lower, so that the support frame restricts the swaying main spring and accelerates the recovery speed of the main spring deformed by the collision. Furthermore, under the action of the support frame and the transmission mechanism, the protective shell can also protect the non-working device. In addition, with the action of the card and fixing mechanism, the operator can quickly disassemble and assemble the main spring, which is convenient for replacing the main spring that has suffered metal fatigue. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure in this invention;

[0021] Figure 2 This is a three-dimensional structural diagram from another perspective in this invention;

[0022] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0024] Figure 5 This is a partial three-dimensional structural diagram of the present invention;

[0025] Figure 6 This is a partial three-dimensional structural diagram of the present invention;

[0026] Figure 7 For the present invention Figure 6 A magnified 3D structural diagram of point A in the middle;

[0027] Figure 8 This is a partial three-dimensional structural diagram of the present invention;

[0028] Figure 9 This is a schematic diagram of the system in this invention.

[0029] In the diagram: 1. Work frame; 2. Extension shell; 3. Water outlet; 4. Base; 5. Signal amplifier; 6. Main spring; 7. Collision head; 8. Tilt switch module; 9. Support column; 10. Housing; 11. Power mechanism; 111. Small motor; 112. Drive gear; 113. Driven gear plate; 12. Support rod; 13. Handrail; 14. Transmission mechanism; 141. Drive gear plate; 142. Driven gear; 143. Force-bearing gear; 144. Rotating shaft; 15. Protective shell; 16. Auxiliary rotating rod; 17. Auxiliary block; 18. Pad block; 19. Fixing shell; 20. Card; 21. Fixing mechanism; 211. Connecting block; 212. Second spring; 213. Slide rod; 22. Connecting groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-9 As shown, an anti-overhead collision device for an aerial work platform includes a work platform frame 1. Extended shells 2 are welded to both sides of the work platform frame 1. A base 4 is bolted to the inner cavity of the extended shell 2. A signal amplifier 5 is fixed to one end of the base 4. A main spring 6 is sleeved in the inner cavity of one end of the base 4. A bumper 7 is sleeved on the other end of the main spring 6. Several support columns 9 are arranged in a ring around the inner cavity of the bumper 7. A tilt switch module 8 is snapped onto the surface of the support columns 9. A housing 10 is fixed to one side of the extended shell 2. A power mechanism 11 for lifting is provided in the inner cavity of the housing 10. A support frame 13 for limiting the main spring 6 is provided on the surface of the power mechanism 11. A transmission mechanism 14 for transmission is provided on the other side of the support frame 13. A protective shell 15 for protection is provided on the surface of the transmission mechanism 14. Fixed shells 19 are fixed to both sides of the base 4. The inner cavity of the fixed shell 19 slides... The device includes a card 20 for fixing the main spring 6. The surface of the card 20 is provided with a fixing mechanism 21 that allows the card 20 to slide. The main structure of the invention is composed of the main spring 6. Under the action of the bumper 7, tilt switch module 8, signal amplifier 5 and controller, it can meet collisions at different angles and can return to its original state after the collision. In addition, the operator can use the power mechanism 11 to drive the support frame 13 to lift and lower, so that the support frame 13 restricts the swaying main spring 6 and accelerates the recovery speed of the main spring 6 after deformation due to contact. In addition, under the action of the support frame 13 and the transmission mechanism 14, the protective shell 15 can also protect the device when it is not in operation. Furthermore, under the action of the card 20 and the fixing mechanism 21, the operator can quickly disassemble and assemble the main spring 6, which is convenient for replacing the main spring 6 that has suffered metal fatigue.

[0032] The power mechanism 11 includes a small motor 111, which is fixed to the inner cavity of the housing 10. The output shaft of the small motor 111 is fixed with a drive gear 112, and a driven gear plate 113 meshes with the surface of the drive gear 112. The support frame 13 is fixed to one side of the surface of the driven gear plate 113. In this embodiment, through the arrangement of the small motor 111, the drive gear 112 and the driven gear plate 113, the operator can use the small motor 111. Under the action of the small motor 111, the drive gear 112 rotates, and the driven gear plate 113 meshing with the drive gear 112 can drive the support frame 13 to rise and fall.

[0033] Support rods 12 are slidably provided on both sides of the inner cavity of the support frame 13. One end of the support rod 12 is fixed to the inner cavity of the extension shell 2. In this embodiment, by setting the support rod 12, when the driven toothed plate 113 slides, the support rod 12 can provide a limit for the sliding of the driven toothed plate 113, thereby improving the stability of the sliding of the driven toothed plate 113.

[0034] The transmission mechanism 14 includes a drive gear plate 141, which is fixed to one side of the surface of the support frame 13. A driven gear 142 meshes with the surface of the drive gear plate 141, and a force-bearing gear 143 meshes with the surface of the driven gear 142. A rotating shaft 144 is fixed inside the cavity of the force-bearing gear 143. A protective shell 15 is fixed to both sides of the rotating shaft 144. In this embodiment, by setting up the drive gear plate 141, driven gear 142, force-bearing gear 143 and rotating shaft 144, when the support frame 13 is raised or lowered, the drive gear plate 141 fixed to the surface of the support frame 13 can be driven to rise. Then, the driven gear 142 meshing with the drive gear plate 141 can mesh with the force-bearing gear 143, and under the action of the rotating shaft 144, the protective shell 15 rotates.

[0035] The different specifications of the driven gear 142 and the force-bearing gear 143 enable the transmission mechanism 14 and the power mechanism 11 to be compatible. In this embodiment, this arrangement allows the rotation speed of the protective shell 15 to match the lifting speed of the support frame 13 when the protective shell 15 rotates, thereby improving the practicality of the device.

[0036] An auxiliary rotating rod 16 is rotatably disposed on the surface of the driven gear 142. An auxiliary block 17 is rotatably disposed on both sides of the surface of the auxiliary rotating rod 16. The auxiliary block 17 is fixed to the surface of the extension shell 2 and is also disposed on the surface of the rotating shaft 144. In this embodiment, the auxiliary rotating rod 16 and the auxiliary block 17 provide support for the rotation of the driven gear 142 and the force-bearing gear 143, thereby improving the stability of the driven gear 142 and the force-bearing gear 143 during rotation.

[0037] Both sides of the surface of the extension shell 2 are fixed with pads 18. The pads 18 are rounded. In this embodiment, the pads 18 provide support for the protective shell 15 after it is flipped over, thereby improving the stability of the protective shell 15 after it is flipped over.

[0038] The fixing mechanism 21 includes connecting blocks 211 fixed to both sides of the surface of the card 20. A slide rod 213 is slidably arranged in the inner cavity of the connecting block 211. Both sides of the slide rod 213 are fixed to the inner cavity of the fixing shell 19. A second spring 212 is sleeved on the surface of the slide rod 213. One end of the second spring 212 is fixed to the surface of the connecting block 211, and the other end of the second spring 212 is fixed to the inner cavity of the fixing shell 19. In this embodiment, through the arrangement of the connecting block 211, the second spring 212 and the slide rod 213, the operator can pull the card 20. Then, under the action of the connecting block 211, the slide rod 213 limits the movement of the card 20. In addition, when the operator releases control of the card 20, with the assistance of the second spring 212, the card 20 can be inserted into the gap of the main spring 6 to achieve the purpose of limiting the main spring 6.

[0039] The surface of the extension shell 2 is provided with several water outlet holes 3, which are evenly distributed at the bottom of the extension shell 2. In this embodiment, the water outlet holes 3 are provided to prevent water from accumulating in the extension shell 2, thereby improving the practicality of the device.

[0040] The inner cavity of the bumper 7 is provided with several connecting grooves 22. The connecting grooves 22 are also provided in the inner cavity of the base 4. In this embodiment, the connecting grooves 22 are provided to increase the friction of the connecting part of the main spring 6 and enhance the stability of the main spring 6 after it is placed.

[0041] The tilt switch module 8 and the signal amplifier 5 are electrically connected, and the signal amplifier 5 and the controller are electrically connected. In this embodiment, this arrangement enables several structures to be intelligently connected to achieve more precise work tasks, improve overall performance, and thus better solve practical problems.

[0042] Working principle: During use, the operator can control the lifting and lowering of the work frame 1. When the work frame 1 is operating normally, when the bumper 7 hits an obstacle, the main spring 6 bends, and the built-in tilt switch module 8 disconnects the signal when it reaches 45°. The signal is amplified by the signal amplifier 5 and transmitted to the controller to stop all actions, thereby achieving the purpose of preventing top collision. At the same time, when the leveling of the work bucket fails and the work bucket tilts to 45°, all actions are locked simultaneously, which protects the vehicle and personnel.

[0043] After the bumper 7 causes the main spring 6 to bend, the internal stress of the main spring 6 will cause the bumper 7 to swing back and forth. At this time, the operator can use the power mechanism 11 to raise the support frame 13 under the action of the small motor 111, the drive gear 112 and the driven gear plate 113. Then, under the action of the support frame 13, the swinging main spring 6 can be restricted, the amplitude of its swing can be reduced and its return to normal can be accelerated.

[0044] Furthermore, during the upward movement of the support frame 13 driven by the power mechanism 11, the transmission mechanism 14 fixed to one side of the surface of the support frame 13 can rotate the protective shell 15 under the action of the active gear plate 141, driven gear 142, force-bearing gear 143 and rotating shaft 144, thereby causing the protective shell 15 to flip over and cover the surface of the bumper 7 and the main spring 6. When the bumper 7, the main spring 6, the signal amplifier 5 and the tilt switch module 8 are not in use, they are simply protected. In addition, if the main spring 6 suffers metal fatigue during long-term use, the operator can use the card 20 and the fixing mechanism 21 to release the restriction on the main spring 6, thereby facilitating the replacement of the main spring 6 and further improving the practicality of the device.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing roof collision on an aerial work platform, comprising a work platform frame (1), characterized in that, Also includes: Extended shells (2) are welded to both sides of the surface of the work vehicle frame (1). A base (4) is bolted to the inner cavity of the extended shell (2). A signal amplifier (5) is fixed to one end of the base (4). A main spring (6) is sleeved in the inner cavity of one end of the base (4). A bumper (7) is sleeved on the other end of the main spring (6). Several support columns (9) are arranged in a ring in the inner cavity of the bumper (7). A tilt switch module (8) is snapped onto the surface of the support column (9). A housing (10) is fixed to one side of the surface of the extension shell (2). The inner cavity of the housing (10) is provided with a power mechanism (11) for lifting. The surface of the power mechanism (11) is provided with a support frame (13) for limiting the main spring (6). A transmission mechanism (14) for transmission is provided on the other side of the support frame (13), and a protective shell (15) for protection is provided on the surface of the transmission mechanism (14). Fixed shells (19) are fixed on both sides of the surface of the base (4). The inner cavity of the fixed shell (19) has a card (20) for fixing the main spring (6). The surface of the card (20) is provided with a fixing mechanism (21) that allows the card (20) to slide. The power mechanism (11) includes a small motor (111), which is fixed in the inner cavity of the housing (10). The output shaft of the small motor (111) is fixed with a drive gear (112), and the surface of the drive gear (112) meshes with a driven gear plate (113). The support frame (13) is fixed to one side of the surface of the driven gear plate (113). The transmission mechanism (14) includes an active gear plate (141), which is fixed to one side of the surface of the support frame (13). A driven gear (142) meshes with the surface of the active gear plate (141), and a force-bearing gear (143) meshes with the surface of the driven gear (142). A rotating shaft (144) is fixed in the inner cavity of the force-bearing gear (143), and the protective shell (15) is fixed to both sides of the rotating shaft (144). The fixing mechanism (21) includes connecting blocks (211) fixed to both sides of the surface of the card (20). A slide rod (213) is slidably provided in the inner cavity of the connecting block (211). Both sides of the slide rod (213) are fixed to the inner cavity of the fixing shell (19). A second spring (212) is sleeved on the surface of the slide rod (213). One end of the second spring (212) is fixed to the surface of the connecting block (211), and the other end of the second spring (212) is fixed to the inner cavity of the fixing shell (19).

2. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: Support rods (12) are slidably provided on both sides of the inner cavity of the support frame (13), and one end of the support rod (12) is fixed to the inner cavity of the extension shell (2).

3. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: The different specifications of the driven gear (142) and the force-bearing gear (143) enable the transmission mechanism (14) and the power mechanism (11) to be compatible.

4. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: An auxiliary rotating rod (16) is rotatably provided on the surface of the driven gear (142). An auxiliary block (17) is rotatably provided on both sides of the surface of the auxiliary rotating rod (16). The auxiliary block (17) is fixed to the surface of the extension shell (2) and is also provided on the surface of the rotating shaft (144).

5. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: Both sides of the surface of the extended shell (2) are fixed with pads (18), and the pads (18) are rounded.

6. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: The surface of the extension shell (2) is provided with a plurality of water outlet holes (3), which are evenly distributed at the bottom of the extension shell (2).

7. The anti-overrun device for aerial work platforms according to claim 1, characterized in that: The inner cavity of the bumper (7) is provided with several connecting grooves (22), which are also provided in the inner cavity of the base (4).

Images