CN118544953B - Gangway ladder for vehicle shelter - Google Patents
Gangway ladder for vehicle shelter Download PDFInfo
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- CN118544953B CN118544953B CN202411019016.7A CN202411019016A CN118544953B CN 118544953 B CN118544953 B CN 118544953B CN 202411019016 A CN202411019016 A CN 202411019016A CN 118544953 B CN118544953 B CN 118544953B
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- door plate
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- tail door
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- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/007—Removable steps or ladders, e.g. foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/02—Retractable steps or ladders, e.g. movable under shock
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides a gangway ladder for a square cabin of a vehicle, which comprises a fixed component fixedly connected with the square cabin, a tail door plate hinged on the fixed component, a multi-stage pedal arranged on the tail door plate, a plurality of guardrail components arranged between the fixed component and the tail door plate, and a plurality of driving components arranged between the fixed component and the tail door plate and used for driving the tail door plate to rotate. According to the invention, when the tail gate plate rotates to be in contact with the ground, the tail gate plate can also drive the guardrail assembly to be unfolded, so that a person can hold the grab rail of the guardrail assembly in the shelter, and when the tail gate plate rotates to be in a vertical storage state, the tail gate plate can also drive the guardrail assembly to be stored, so that the guardrail assembly occupies less space, and therefore, the unfolding and storage processes of the tail gate plate and the guardrail are smooth and rapid, and the safety and convenience of operation are improved.
Description
Technical Field
The invention relates to the technical field of gangways, in particular to a gangway for a square cabin of a vehicle.
Background
With the increase of requirements for outdoor exploration, emergency rescue, field construction and the like, the application of vehicular shelter (such as camping vehicles, mobile command centers, emergency medical rescue vehicles and the like) is increasingly wide. These cabins often need to be equipped with gangways for easy access by personnel, especially in uneven ground or parking environments with large differences in height. Although the conventional fixed or portable gangway ladder can meet basic boarding and alighting requirements, the conventional fixed or portable gangway ladder has a plurality of defects in space utilization efficiency, safety and operation convenience.
On the one hand, the space of the square cabin for the vehicle is precious, and each inch of space needs to be carefully planned to ensure the effective loading of equipment and the comfort of life and work. When the traditional gangway ladder is not used, the storage of the traditional gangway ladder often occupies more storage space, so that the flexibility of the internal layout of the shelter is limited;
On the other hand, when operating these gangways, in particular installing and dismantling the guardrails, not only is time consuming and laborious, but also safety risks may be caused by improper operation, in particular in emergency response or in severe weather conditions, efficiency and safety are particularly important;
Therefore, the invention provides a gangway ladder system specially designed for a square cabin for a vehicle, which is characterized in that a gangway ladder and guardrail linkage storage mechanism is realized, the system not only can effectively save storage space and improve the utilization rate of the space in the square cabin, but also ensures that the unfolding and storage processes of the gangway ladder and the guardrail are more smooth and rapid through a highly integrated automatic structure, and the safety and convenience of operation are greatly improved.
Disclosure of Invention
Based on the above, the invention aims to provide a gangway ladder for a vehicle shelter, which saves storage space, improves the utilization rate of the space inside the shelter and improves operation safety and convenience.
The invention provides the following technical scheme: the gangway ladder for the square cabin of the vehicle comprises a fixed component fixedly connected with the square cabin, a tail door plate hinged to the fixed component, a multi-stage pedal arranged on the tail door plate, a plurality of guardrail components arranged between the fixed component and the tail door plate, and a plurality of driving components arranged between the fixed component and the tail door plate and used for driving the tail door plate to rotate;
The guardrail assembly comprises a first rotating seat fixedly connected with the fixing assembly, a first connecting rod rotationally connected to the first rotating seat, a handrail rod rotationally connected to the first connecting rod, and a plurality of supporting units arranged between the handrail rod and the tail gate plate;
The support unit comprises a second rotating seat fixedly connected to the tail door plate, a third rotating seat fixedly connected to the grab rail, and a second connecting rod rotatably connected between the second rotating seat and the third rotating seat.
Further, two guardrail assemblies are arranged between the fixing assembly and the tail gate plate, the two guardrail assemblies are respectively located at two sides of the tail gate plate, and the multistage pedal is located between the two guardrail assemblies.
Further, two driving assemblies for driving the tail gate plate to rotate are arranged between the fixing assemblies and the tail gate plate, and the two driving assemblies are respectively located at two sides of the tail gate plate.
Further, the driving assembly comprises a first connecting seat fixedly connected with the fixing assembly, an electric pushing rod rotatably connected to the first connecting seat, and a second connecting seat fixedly connected to the tail door plate, wherein the second connecting seat is rotatably connected with the output end of the electric pushing rod.
Further, electromagnetic locks are arranged on two sides of the fixing assembly, and the electromagnetic locks are used for locking the tail door plate.
Further, be provided with a plurality of siren on the multistage footboard, the siren interval distributes in the both sides of multistage footboard, when the gangway ladder was opened or was retrieved, the siren sent out the alarm and was reminded, the siren includes bee calling organ and warning light.
Further, the fixing component comprises two connecting frames fixedly connected with two sides in the shelter respectively, and a hinge plate fixedly connected between the two connecting frames, and the tail door plate is hinged with the hinge plate.
Further, the gangway ladder further comprises a plurality of supporting mechanisms, each supporting mechanism comprises a sliding block connected with the corresponding hinge plate in a sliding mode, a rope winding column arranged on the corresponding sliding block, a first spring connected between the corresponding sliding block and the corresponding hinge plate, a mounting seat arranged in the middle of the corresponding tail gate plate, supporting legs connected with the mounting seat in a rotating mode, torsion springs arranged between the supporting legs and the mounting seat, a gear block arranged on the mounting seat, a connecting piece arranged on the supporting legs and a rope connected with the corresponding rope winding column.
Further, the gangway ladder further comprises clamping mechanisms, the number of which corresponds to that of the supporting mechanisms, the clamping mechanisms comprise sliding sleeves arranged on the mounting seats, first wedge blocks connected on the sliding sleeves in a sliding mode, second springs connected between the first wedge blocks and the sliding sleeves, extrusion rods fixedly connected on the first wedge blocks, and second wedge blocks arranged on the hinge plates.
The beneficial effects of the invention are as follows: the tail gate board is enabled to rotate to be in contact with the ground through the starting driving assembly, the upper surface of the multistage pedal is parallel to the ground at the moment, personnel can pass through the multistage pedal to climb to the upper cabin, the multistage pedal can rotate to be parallel to the ground in use, the multistage pedal can rotate to be in a storage state when not needed to be used, storage space is saved, utilization rate of space in the square cabin is improved, the tail gate board can also drive the guardrail assembly to be unfolded when the tail gate board rotates to be in contact with the ground, personnel can walk the handrail rod of the guardrail assembly to enter the square cabin, and when the tail gate board rotates to be in a vertical storage state, the tail gate board can also drive the guardrail assembly to be stored, so that the guardrail assembly occupies less space, and therefore, the tail gate board and the guardrail are unfolded and stored in a process flow smoothly and rapidly, and the safety and convenience of operation are improved.
Drawings
Fig. 1 is a schematic view of a first perspective view of the present invention in a closed state.
Fig. 2 is a schematic view of a second perspective view of the present invention in a closed state.
Fig. 3 is a schematic view of a third perspective view of the present invention in the closed state.
Fig. 4 is a schematic view of a first perspective view of the horizontal state of the present invention.
Fig. 5 is a schematic view of a second perspective view of the horizontal state of the present invention.
Fig. 6 is a schematic view of a first perspective view of the open state of the present invention.
Fig. 7 is a schematic view of a second perspective view of the open state of the present invention.
Fig. 8 is a circuit diagram of a second embodiment of the present invention.
Fig. 9 is a schematic perspective view of the supporting mechanism and the positioning mechanism of the present invention.
Fig. 10 is a schematic perspective view of a first portion of the support mechanism of the present invention.
Fig. 11 is a schematic perspective view of a second portion of the support mechanism of the present invention.
Fig. 12 is a schematic perspective view of a first portion of the detent mechanism of the present invention.
Fig. 13 is a schematic perspective view showing a state where the pressing rod is in contact with the second wedge block.
The marks in the drawings are: the door comprises a 1-tail door plate, a 2-multistage pedal, a 3-driving component, a 31-first connecting seat, a 32-electric push rod, a 33-second connecting seat, a 4-guardrail component, a 41-first rotating seat, a 42-first connecting rod, a 43-grab bar, a 44-second rotating seat, a 45-second connecting rod, a 46-third rotating seat, a 5-electromagnetic lock, a 6-alarm, a 7-fixing component, a 71-connecting frame, a 72-hinge plate, an 8-supporting mechanism, a 81-sliding block, a 82-rope winding column, a 83-first spring, a 84-rope, a 85-mounting seat, a 86-supporting leg, a 87-blocking block, a 88-torsion spring, a 89-connecting piece, a 9-clamping mechanism, a 91-sliding sleeve, a 92-first wedge block, a 93-second spring, a 94-extrusion rod and a 95-second wedge block.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
1-3, A gangway ladder for a shelter of a vehicle comprises a fixed component 7 fixedly connected with the shelter, a tail gate plate 1 hinged on the fixed component 7, a multi-stage pedal 2 arranged on the tail gate plate 1, a plurality of guardrail components 4 arranged between the fixed component 7 and the tail gate plate 1, and a plurality of driving components 3 arranged between the fixed component 7 and the tail gate plate 1 and used for driving the tail gate plate 1 to rotate;
As shown in fig. 4 to 7, the guardrail assembly 4 includes a first rotating base 41 fixedly connected with the fixing assembly 7, a first connecting rod 42 rotatably connected to the first rotating base 41, a grab rail 43 rotatably connected to the first connecting rod 42, and a plurality of support units disposed between the grab rail 43 and the tailgate 1;
The supporting unit comprises a second rotating seat 44 fixedly connected to the tail gate plate 1, a third rotating seat 46 fixedly connected to the grab rail 43, and a second connecting rod 45 rotatably connected between the second rotating seat 44 and the third rotating seat 46;
As shown in fig. 7, the fixing assembly 7 includes two connecting frames 71 fixedly connected to two sides of the shelter, and a hinge plate 72 fixedly connected between the two connecting frames 71, and the tail gate 1 is hinged to the hinge plate 72.
The gangway ladder is used for a large and medium-sized special shelter, the shelter is a box body with one end being open, a fixing component 7 is arranged at the opening of the shelter, a tail door plate 1 is connected with the shelter through a hinge plate 72 special for the shelter, the tail door plate 1 can be lifted by 180 degrees downwards from the vertical state, the shelter can be completely closed by rotating the tail door plate 1, a multistage pedal 2 is arranged on the inner side surface of the tail door plate 1, the upper surface of the multistage pedal 2 is parallel to the ground after the tail door plate 1 is lifted in place, personnel can enter the inside of the shelter through the multistage pedal 2, an anti-slip profile with lines and an anti-slip leather attached with PVC frosting material are designed on the surface of the multistage pedal 2, therefore, an anti-slip effect can be achieved when the personnel passes through the multistage pedal 2, a guardrail component 4 and a driving component 3 are arranged between the connecting frame 71 and the tail door plate 1, two supporting units are arranged in the guardrail component 4, and when the personnel enter the shelter through the guardrail component 4, the personnel can hold the guardrail component 4 to ensure the safety of the personnel, and the guardrail component 4 is used for driving the tail door plate 1 to rotate;
Specifically, when an operator needs to enter the shelter, the driving assembly 3 can be started, the driving assembly 3 drives the tail door plate 1 to rotate towards the ground, the tail door plate 1 rotates to drive the multi-stage pedal 2 to rotate, when the tail door plate 1 rotates to be in contact with the ground, the upper surface of the multi-stage pedal 2 is parallel to the ground, meanwhile, when the tail door plate 1 rotates, the second rotating seat 44 is driven to rotate, the second rotating seat 44 drives the second connecting rod 45 to rotate, when the second rotating seat 44 drives the second connecting rod 45 to rotate, the first connecting rod 42 limits the grab handle 43, the second connecting rod 45 rotates from the direction away from the tail door plate 1, the grab handle 43 is driven to be unfolded when the second connecting rod 45 rotates, and finally the grab handle 43 is in a parallel state with the tail door plate 1, and at the moment, the operator can walk the grab handle 43 on the multi-stage pedal 2 so as to enter the shelter; when the tail door plate 1 needs to be stored, the operator can control the driving assembly 3, the driving assembly 3 drives the tail door plate 1 to rotate towards the direction close to the shelter, finally, the tail door plate 1 rotates to be in a vertical storage state, when the tail door plate 1 rotates towards the direction close to the shelter, the tail door plate 1 drives the second rotating seat 44 to rotate towards the direction close to the shelter, the second connecting rod 45 rotates towards the direction close to the tail door plate 1 to be in a storage state due to the limitation of the first connecting rod 42 and the grab rail 43, the second connecting rod 45 drives the grab rail 43 to move towards the direction close to the tail door plate 1, the grab rail 43 drives the first connecting rod 42 to rotate towards the direction close to the shelter, and therefore, when the tail door plate 1 rotates towards the direction close to the shelter to be stored, the guardrail assembly 4 can be simultaneously driven to be stored, the storage process of the tail door plate 1 and the guardrail assembly 4 is more flowing fast, the safety and convenience of operation are greatly improved, and the storage states of the tail door plate 1 and the guardrail can refer to fig. 1.
Two guardrail assemblies 4 are arranged between the fixing assembly 7 and the tail gate plate 1, the two guardrail assemblies 4 are respectively positioned on two sides of the tail gate plate 1, and the multi-stage pedal 2 is positioned between the two guardrail assemblies 4.
It will be appreciated that by means of two guardrail assemblies 4, two persons can simultaneously walk one of the guardrail assemblies 4 over the shelter, thereby accelerating the ingress and egress of persons.
Two driving assemblies 3 for driving the tail gate 1 to rotate are arranged between the fixing assembly 7 and the tail gate 1, and the two driving assemblies 3 are respectively positioned on two sides of the tail gate 1.
It can be appreciated that by providing two driving assemblies 3, when the driving assemblies 3 drive the tail door plate 1 to rotate, the tail door plate 1 will rotate more stably, so that the stress of the tail door plate 1 is balanced.
As shown in fig. 4, the driving assembly 3 includes a first connecting seat 31 fixedly connected with the fixing assembly 7, an electric pushing rod 32 rotatably connected to the first connecting seat 31, and a second connecting seat 33 fixedly connected to the tail gate plate 1, wherein the second connecting seat 33 is rotatably connected to an output end of the electric pushing rod 32.
It will be appreciated that when the rear door panel 1 is required to rotate to the ground, the operator may start the electric push rod 32, the output end of the electric push rod 32 extends to push the rear door panel 1 to rotate in a direction close to the ground, the electric push rod 32 rotates in a direction away from the shelter in a self-adaptive manner while the output end of the electric push rod 32 extends, when the rear door panel 1 is required to be stored, the operator restarts the electric push rod 32, the output end of the electric push rod 32 retracts, thereby pulling the rear door panel 1 back, and the stroke of the electric push rod 32 is selected according to the calculation, so that the rear door panel 1 can be ensured to be lifted down to a designated angle.
As shown in fig. 4, electromagnetic locks 5 are disposed on two sides of the fixing component 7, and the electromagnetic locks 5 are used for locking the tail gate 1.
It can be appreciated that when the electric pushing bar 32 drives the tail door plate 1 to be stored, the electromagnetic lock 5 contacts with a corresponding thick iron plate (not shown in the figure) installed on the tail door plate 1 when the tail door plate 1 is retracted and closed in place by adopting a power-losing electromagnet, the electric pushing bar 32 stops working and is powered off, the power-losing electromagnet is powered off simultaneously, and the magnetic force is recovered to adsorb the thick iron plate, so that the limiting effect on the tail door plate 1 is achieved.
As shown in fig. 5, the multi-stage pedal 2 is provided with a plurality of alarms 6, and the alarms 6 include a buzzer and a warning light which are arranged on the multi-stage pedal 2.
It will be appreciated that when the electric push rod 32 works, no matter whether the electric push rod 32 drives the tail door plate 1 to be stored or unfolded, the buzzer and the warning lamp can work to give an alarm to remind surrounding personnel to pay attention to avoid the movement range of the tail door plate 1.
In summary, through starting the drive assembly 3 to make the tail gate board 1 rotate to contact with ground, the upper surface and the ground of multistage footboard 2 are parallel at this moment, personnel's accessible multistage footboard 2 are stepped on the shelter above, wherein multistage footboard 2 is rotatable to be parallel with the ground in use, rotatable being the state of accomodating when not needing to use, realize saving storage space, promote the utilization ratio of shelter inner space, when tail gate board 1 rotates to contact with ground, tail gate board 1 also can drive guardrail subassembly 4 and expand, make personnel can hold the grab rail 43 of guardrail subassembly 4 and enter into the shelter, and when tail gate board 1 rotates to the perpendicular state of accomodating, tail gate board 1 also can drive guardrail subassembly 4 and accomodate, make guardrail subassembly 4 occupy less space, thereby realize that tail gate board 1 and guardrail expand and accomodate the process flow swiftly, improve the security and the convenience of operation.
As shown in fig. 8, a second embodiment of the present invention further includes an electric control and warning system based on the first embodiment, where the electric control and warning system includes an electric push rod 32 synchronous controller, a relay module, a buzzer, a warning lamp, a control panel and a ship switch; the synchronous controller of the electric push rod 32 ensures that the left electric push rod 32 and the right electric push rod 32 synchronously move without dislocation, the buzzer and the warning lamp send out an audible and visual alarm to remind the surrounding of avoiding the movement range of the tail door plate 1 when the electric push rod 32 works, the control panel and the ship type switch are arranged at the easily-operated position outside the vehicle and used for controlling the electric push rod 32 to realize the opening and the retraction of the gangway, and the relay is used for controlling the synchronous power on and the power off of the electromagnetic lock 5.
Fig. 9-13 show a third embodiment of the invention, which further comprises two support mechanisms 8 and two detent mechanisms 9 on the basis of the first embodiment;
As shown in fig. 9 to 11, the gangway further includes a plurality of supporting mechanisms 8, the supporting mechanisms 8 including a slider 81 slidably connected to the hinge plate 72, a rope winding post 82 provided on the slider 81, a first spring 83 connected between the slider 81 and the hinge plate 72, a mount 85 provided in the middle of the tail gate plate 1, a leg 86 rotatably connected to the mount 85, a torsion spring 88 provided between the leg 86 and the mount 85, a gear block 87 provided on the mount 85, a connecting member 89 provided on the leg 86, and a rope 84 connecting the connecting member 89 with the rope winding post 82.
Wherein, in this embodiment, two supporting mechanisms 8 are provided and distributed on two sides of the tail gate plate 1, the two supporting mechanisms 8 are used for supporting the middle part of the tail gate plate 1, so that the tail gate plate 1 provides better supporting force, it can be understood that when the tail gate plate 1 rotates towards the ground to be unfolded, the tail gate plate 1 drives the mounting seat 85, the support legs 86, the stop block 87, the torsion spring 88 and the connecting piece 89 to rotate together, the elastic coefficient of the first spring 83 is greater than the torsion coefficient of the torsion spring 88, when the tail gate plate 1 just rotates, the rope 84 pulls the rope winding column 82 to drive the sliding block 81 to move downwards, the first spring 83 stretches, when the tail gate plate 1 rotates to be in a vertical state with the hinge plate 72 and then continues to rotate towards the ground, the rope 84 pulls the connecting piece 89, the connecting piece 89 drives the support legs 86 to rotate towards the direction close to the stop block 87, the torsion spring 88 deforms, the stop block 87 finally contacts with the connecting piece 89, the stop block 87 stops the connecting piece 89, the connecting piece 89 can not rotate continuously in the direction close to the stop block 87, when the tail door plate 1 rotates continuously towards the ground, the support leg 86 can not rotate because the connecting piece 89 can not rotate, the rope 84 pulls the sliding block 81 and the rope winding column 82 to move downwards, when the tail door plate 1 contacts with the ground, the support leg 86 supports the middle part of the tail door plate 1, when people enter the shelter through the multi-stage pedal 2, the tail door plate 1 provides better supporting force, when the tail door plate 1 rotates and is accommodated in the direction close to the hinge plate 72, the tail door plate 1 drives the mounting seat 85, the support leg 86, the stop block 87, the torsion spring 88 and the connecting piece 89 to rotate together in the direction close to the hinge plate 72, the first spring 83 will reset, and the first spring 83 resets and will drive slider 81 and wiring post 82 and upwards remove, and torsion spring 88 will also reset, and torsion spring 88 resets and will drive stabilizer blade 86 and connecting piece 89 and rotate in the direction of keeping away from stop 87, and finally stabilizer blade 86 will be the state of fig. 13, makes stabilizer blade 86 accomodate and makes whole gangway ladder compacter.
As shown in fig. 12 and 13, the gangway further includes a number of detent mechanisms 9 corresponding to the supporting mechanisms 8, the detent mechanisms 9 include sliding sleeves 91 provided on the mounting seats 85, first wedge blocks 92 slidably connected on the sliding sleeves 91, second springs 93 connected between the first wedge blocks 92 and the sliding sleeves 91, squeeze rods 94 fixedly connected on the first wedge blocks 92, and second wedge blocks 95 provided on the hinge plates 72.
Wherein the number of the supporting mechanisms 8 is two as the same as that of the clamping mechanisms 9, and the clamping mechanisms 9 are used for clamping the support legs 86 in a ground contact state, so that the support legs 86 can be completely fixed and cannot rotate under the action of the clamping mechanisms 9 and the blocking blocks 87; it will be appreciated that when the leg 86 rotates in the direction of the stop 87, the leg 86 presses the first wedge 92, the second spring 93 stretches, when the leg 86 completely passes over the first wedge 92 and contacts the stop 87, the second spring 93 resets and drives the first wedge 92 to reset, the first wedge 92 stops the leg 86 from rotating in the direction of the stop 87 and from rotating in the direction of the first wedge 92, thereby fixing the leg 86, preventing the leg 86 from rotating to reduce the supporting force of the middle part of the tailgate 1 when the middle part of the tailgate 1 is supported, when the tailgate 1 is stored in the direction close to the hinge plate 72, the second wedge 95 presses the pressing rod 94, the pressing rod 94 rotates in the direction far away from the leg 86, the pressing rod 94 drives the first wedge 92 to rotate in the direction far away from the leg 86, the first wedge 92 does not stop the leg 86, and the leg 86 is kept in the stored state by the torsion springs 88 and 86.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The gangway ladder for the square cabin of the vehicle is characterized by comprising a fixed component fixedly connected with the square cabin, a tail door plate hinged on the fixed component, a multi-stage pedal arranged on the tail door plate, a plurality of guardrail components arranged between the fixed component and the tail door plate, and a plurality of driving components arranged between the fixed component and the tail door plate and used for driving the tail door plate to rotate;
The guardrail assembly comprises a first rotating seat fixedly connected with the fixing assembly, a first connecting rod rotationally connected to the first rotating seat, a handrail rod rotationally connected to the first connecting rod, and a plurality of supporting units arranged between the handrail rod and the tail gate plate;
The support unit comprises a second rotating seat fixedly connected to the tail door plate, a third rotating seat fixedly connected to the grab rail, and a second connecting rod rotatably connected between the second rotating seat and the third rotating seat;
the fixing component comprises two connecting frames which are respectively and fixedly connected with two sides in the shelter and a hinge plate which is fixedly connected between the two connecting frames, and the tail door plate is hinged with the hinge plate;
The gangway ladder further comprises a plurality of supporting mechanisms, wherein each supporting mechanism comprises a sliding block, a rope winding column, a first spring, a mounting seat, a supporting leg, a torsion spring, a blocking block, a connecting piece and a rope, the sliding block is connected to the hinge plate in a sliding mode, the rope winding column is arranged on the sliding block, the first spring is connected between the sliding block and the hinge plate, the mounting seat is arranged in the middle of the tail gate plate, the supporting leg is connected to the mounting seat in a rotating mode, the torsion spring is arranged between the supporting leg and the mounting seat, the blocking block is arranged on the mounting seat, the connecting piece is arranged on the supporting leg, and the rope is used for connecting the connecting piece and the rope winding column;
The gangway ladder further comprises clamping mechanisms, wherein the clamping mechanisms correspond to the supporting mechanisms in number, each clamping mechanism comprises a sliding sleeve arranged on the mounting seat, a first wedge-shaped block connected on the sliding sleeve in a sliding mode, a second spring connected between the first wedge-shaped block and the sliding sleeve, an extrusion rod fixedly connected on the first wedge-shaped block, and a second wedge-shaped block arranged on the hinge plate.
2. The gangway of claim 1, wherein two guardrail assemblies are disposed between the securing assembly and the tailgate, two guardrail assemblies being located on each side of the tailgate, and the multi-stage pedal being located between two guardrail assemblies.
3. The gangway of claim 1, wherein two drive assemblies for driving the tailgate to rotate are provided between the fixing assembly and the tailgate, the two drive assemblies being located on either side of the tailgate.
4. The gangway of claim 1, wherein the drive assembly comprises a first connection block fixedly connected to the fixed assembly, an electric pusher bar rotatably connected to the first connection block, and a second connection block fixedly connected to the tailgate, the second connection block rotatably connected to an output end of the electric pusher bar.
5. The gangway of claim 1, wherein both sides of the fixed assembly are provided with electromagnetic locks for locking the tailgate.
6. The gangway ladder of claim 1, wherein a plurality of alarms are arranged on the multi-stage pedal, the alarms are distributed on two sides of the multi-stage pedal at intervals, and when the gangway ladder is opened or retracted, the alarms give out alarm reminding, and the alarms comprise a buzzer and a warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411019016.7A CN118544953B (en) | 2024-07-29 | 2024-07-29 | Gangway ladder for vehicle shelter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411019016.7A CN118544953B (en) | 2024-07-29 | 2024-07-29 | Gangway ladder for vehicle shelter |
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| Publication Number | Publication Date |
|---|---|
| CN118544953A CN118544953A (en) | 2024-08-27 |
| CN118544953B true CN118544953B (en) | 2024-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411019016.7A Active CN118544953B (en) | 2024-07-29 | 2024-07-29 | Gangway ladder for vehicle shelter |
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| CN (1) | CN118544953B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347686B1 (en) * | 1997-12-11 | 2002-02-19 | Hedwel Engineering Pty. Ltd. | Access device |
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| CN218558718U (en) * | 2022-11-16 | 2023-03-03 | 重庆迪马工业有限责任公司 | Rear turnover tail gate capable of walking |
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| CN118544953A (en) | 2024-08-27 |
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