CN113232576B - Splicing two-section folding vehicle-mounted unfolding platform and operation method - Google Patents
Splicing two-section folding vehicle-mounted unfolding platform and operation method Download PDFInfo
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- CN113232576B CN113232576B CN202110544423.XA CN202110544423A CN113232576B CN 113232576 B CN113232576 B CN 113232576B CN 202110544423 A CN202110544423 A CN 202110544423A CN 113232576 B CN113232576 B CN 113232576B
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- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
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- 238000009434 installation Methods 0.000 description 2
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/007—Helicopter portable landing pads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/11—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/135—Securing or supporting by load bracing means
- B60P7/14—Securing or supporting by load bracing means the load bracing means comprising a movable bulkhead
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/0207—Connections of movable or detachable racks or stanchions to platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/023—Sideboard or tailgate structures
- B62D33/027—Sideboard or tailgate structures movable
- B62D33/03—Sideboard or tailgate structures movable by swinging down
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Abstract
The invention belongs to the technical field of transportation, and particularly relates to a splicing two-section folding multi-section vehicle-mounted platform and an operation method thereof, wherein a unfolding mechanism comprises the multi-section vehicle-mounted platform, a supporting leg assembly and an angle control mechanism, the multi-section vehicle-mounted platform is arranged at the top of a carrier vehicle, and comprises an on-vehicle main board, a first middle plate, a second middle plate, a first outer plate and a second outer plate; the supporting leg assembly and the angle control mechanism are arranged at the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate; the operation method comprises an unfolding method and a folding method. The invention realizes the angle change motion from the transverse linear motion of the linear steering engine to the multi-section vehicle-mounted platform plate through the precise link mechanism, thereby realizing the control of the angle control mechanism on the folding and unfolding of the multi-section vehicle-mounted platform; the invention enables the multi-section vehicle-mounted platform to automatically perform height compensation and realize self-adaptive parking and rapid leveling of irregular ground.
Description
Technical Field
The invention belongs to the technical field of transportation, and particularly relates to a splicing two-section folding vehicle-mounted unfolding platform and an operation method.
Background
At present, modern war requires that a combat weapon system has a quick response capability, realizes quick attack and suppression to enemies, and has higher and higher requirements on the performance of vehicle-mounted equipment. The manual operation of the traditional vehicle-mounted platform is difficult to meet the requirements of quick erection, withdrawal and high-precision leveling of the vehicle-mounted platform.
The maximum limit value (in mm) of the external dimensions of automobiles, trailers and automobile trains is regulated according to GB 1589-2004-road vehicle external dimension, axle load and mass limit value, and in order to meet the requirement of road transportation, the vehicle-mounted platform needs to meet the transportation volume limit of 12000 × 2500 × 4000 mm.
Among the prior art, publication number CN 205891274U's patent document discloses a rescue unmanned aerial vehicle-mounted platform and rescue car, include: rescue unmanned aerial vehicle air park, accomodate structure, rear portion carriage and back lid or back door and rescue unmanned aerial vehicle-mounted platform accomodate the structure rescue unmanned aerial vehicle air park, the unmanned aerial vehicle air park can follow accomodate the structure and take out. Rescue unmanned aerial vehicle-mounted platform sets up in the rear portion carriage, and when opening back lid or back door, unmanned aerial vehicle parking apron can be followed accomodate the structure and take out. Although the invention solves the problem of using a part of space, the expansion range of the cantilever pushing type folding and unfolding mode is small, and the platform cannot be expanded in a large range.
Disclosure of Invention
The invention provides a two-section foldable vehicle-mounted unfolding platform capable of being spliced and an operation method.
The technical scheme adopted by the invention for solving the technical problems is as follows: a splicing two-section folding vehicle-mounted unfolding platform and an operation method thereof comprise the following steps:
the foldable or unfoldable multi-section vehicle-mounted platform comprises a vehicle-mounted main board, a first middle board, a second middle board, a first outer board and a second outer board, wherein the vehicle-mounted main board is arranged at the top of the external hanging platform of the carrying vehicle, and two side edges of the vehicle-mounted main board in the length direction are respectively hinged with the first middle board and the second middle board; the side edge of the first middle section plate, which is far away from the vehicle main plate, is hinged with the first outer section plate, and the side edge of the second middle section plate, which is far away from the vehicle main plate, is hinged with the second outer section plate;
the foldable support leg assemblies comprise connecting angle steel and support legs, the connecting angle steel is fixedly connected to the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate, and one end of each support leg is hinged to one end of the connecting angle steel;
the angle control mechanisms are arranged at the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate;
the board sizes of the on-vehicle main board, the first middle section board, the second middle section board, the first outer section board and the second outer section board are all consistent.
As a further preferable mode of the present invention, the support leg includes a main member, a buffer, and a universal wheel, which are axially and sequentially disposed, one end of the main member is hinged to one end of the connection angle, the other end of the main member is fixedly connected to the buffer, and the buffer is hinged to the universal wheel.
The support leg is characterized by further comprising a support leg pull rod and a support leg retracting rod, wherein one end of the support leg pull rod is hinged with the other end of the connecting angle steel, the other end of the support leg pull rod is hinged with one end of the support leg retracting rod, and the other end of the support leg retracting rod is hinged with the main member.
As a further preferred aspect of the present invention, the angle control mechanism includes a driving mechanism, a rotating mechanism and a fixing mechanism, the rotating mechanism is installed at two ends of the driving mechanism, the rotating mechanism is connected to the fixing mechanism, and the fixing mechanism is fixedly connected to the bottoms of the first middle plate, the second middle plate, the first outer plate and the second outer plate; the driving mechanism is used for driving the rotating mechanism, and the rotating mechanism is used for driving the fixing mechanism to rotate.
As a further preferred aspect of the present invention, the driving mechanism includes a motor, a speed reducer, a linear steering engine base, and a linear steering engine push rod, wherein an output end of the motor is connected to the speed reducer, the speed reducer is connected to the linear steering engine base, and the linear steering engine push rod is disposed at two ends of the linear steering engine base.
As a further preferable mode of the invention, the rotating mechanism comprises a triangular rotating part and a triangular rotating part base, the triangular rotating part is in a right-angled triangle shape, the end of one right-angled side of the triangular rotating part far away from the right angle is hinged with the linear steering engine base, the other right-angled side of the triangular rotating part is provided with the triangular rotating part base, and the end of the right-angled side of the triangular rotating part base far away from the right angle is hinged with the fixing mechanism.
As a further preferable feature of the present invention, the fixing mechanism includes a pull rod, a plate connecting seat, and a plate connecting seat base, one end of the pull rod is connected to the triangular rotating member, the other end of the pull rod is connected to the plate connecting seat, one side of the plate connecting seat away from the pull rod is fixedly connected to the bottoms of the first middle plate, the second middle plate, the first outer plate, and the second outer plate, and an end of the plate connecting seat facing one side of the pull rod is hinged to the plate connecting seat base.
As a further preferable feature of the present invention, the external environmental protection device further includes a splicing member, and the splicing member is disposed at a bottom of the first external segment plate or the second external segment plate facing the external environment.
As a further preferable mode of the present invention, the present invention further includes a plurality of reinforcing ribs, four reinforcing ribs are connected end to form a quadrilateral frame structure, and the frame structure is disposed at the bottom of each of the first middle plate, the second middle plate, the first outer plate, and the second outer plate.
The operation method of the two-section foldable vehicle-mounted unfolding platform capable of being spliced comprises a controller, wherein the controller controls the driving mechanism to operate, and the operation method comprises an unfolding method and a folding method;
the unfolding method specifically comprises the following steps:
step S1, unfolding of the first middle section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the first middle section plate close to the upper main plate side of the vehicle to operate, push rods of the two linear steering engines push outwards, the triangular rotating part rotates towards the external environment, and the pull rod drives one side of the first middle section plate hinged with the upper main plate of the vehicle to rotate downwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the first middle section plate close to the first outer section plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the first middle section plate hinged with the first outer section plate to descend downwards;
step S2, unfolding of the first outer section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the first outer section plate close to the first middle section plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the first outer section plate hinged with the first middle section plate to descend downwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the first outer section plate far away from the first middle section plate to operate, push rods of the two linear steering engines push outwards, the triangular rotating part rotates towards the external environment, and the pull rod drives one side of the first outer section plate far away from the first middle section plate to lift upwards;
step S3, unfolding of the second middle section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the second middle section plate close to the upper main plate side of the vehicle to operate, push rods of the two linear steering engines push outwards, the triangular rotating part rotates towards the external environment, and the pull rod drives one side of the second middle section plate hinged with the upper main plate of the vehicle to rotate downwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the second middle section plate close to the second outer section plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the second middle section plate hinged with the second outer section plate to descend downwards;
step S4, unfolding of the second outer section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the second outer section plate close to the second middle section plate to operate, the push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the second outer section plate hinged with the second middle section plate to fall downwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the second outer section plate far away from the second middle section plate side to operate, the push rods of the two linear steering engines push outwards, the triangular rotating piece rotates towards the external environment, and the pull rod drives one side of the second outer section plate far away from the second middle section plate to lift upwards;
the folding method specifically comprises the following steps:
step S1, folding of the first middle section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the first middle plate and close to the upper main plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating part rotates towards the internal environment, and the pull rod drives one side of the first middle plate hinged with the upper main plate to rotate upwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the first middle section plate far away from the first outer section plate to operate, push rods of the two linear steering engines push outwards, the triangular rotating part rotates towards the external environment, and the pull rod drives one side of the first middle section plate hinged with the first outer section plate to lift upwards;
step S2, folding of the first outer section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the first outer section plate close to the first middle section plate to operate, the push rods of the two linear steering engines push outwards, the triangular rotating part rotates towards the external environment, and the pull rod drives one side of the first outer section plate hinged with the first middle section plate to lift upwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the first outer section plate far away from the first middle section plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the first outer section plate far away from the first middle section plate to press downwards;
step S3, unfolding of the second middle section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the second middle plate close to the upper main plate to operate, push rods of the two linear steering engines compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the second middle plate hinged with the upper main plate to rotate upwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the second middle section plate close to the second outer section plate to operate, the push rods of the two linear steering engines push outwards, the triangular rotating piece rotates towards the external environment, and the pull rod drives one side of the second middle section plate hinged with the second outer section plate to lift upwards;
step S4, unfolding of the second outer section plate
The controller controls the driving mechanism of the angle control mechanism arranged on the second outer section plate close to the second middle section plate side to operate, the push rods of the two linear steering engines push outwards, the triangular rotating piece rotates towards the external environment direction, and the pull rod drives one side of the second outer section plate hinged with the second middle section plate to lift upwards;
meanwhile, the controller controls the driving mechanism of the angle control mechanism arranged on the second outer section plate far away from the second middle section plate side to operate, the two linear steering engine push rods compress inwards, the triangular rotating piece rotates towards the internal environment, and the pull rod drives one side of the second outer section plate far away from the second middle section plate to press downwards.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the angle control mechanism is used for realizing the angle change motion of the linear steering engine to the multi-section vehicle-mounted platform in the transverse linear motion, the structure occupies small space and weight, and simultaneously, the smoothness of the external environment of the multi-section vehicle-mounted platform is ensured;
2. the two-section folding and unfolding mode well meets the maximum limit value of GB 1589-2004-road vehicle overall dimension, axle load and quality limit value on the overall dimension of automobiles, trailers and automobile trains required by road transportation;
3. the buffer and the universal wheel can automatically compensate the height of the multi-section vehicle-mounted platform, and realize self-adaptive parking and quick leveling of irregular ground;
4. the multi-section vehicle-mounted platform can be spliced by multiple platforms, large-scale platform operation is realized, and the splicing pieces fixed at the bottom of the outer side of the outer section plate assist the multiple platforms to be rapidly unfolded and butted.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a plan view of the overall structure of the present invention in a folded state;
FIG. 2 is a three-dimensional schematic view of the overall structure of the present invention in a folded state;
FIG. 3 is a schematic view of the fully expanded configuration of the present invention;
FIG. 4 is a schematic view of the angle control mechanism and stiffener mounting position of the present invention;
FIG. 5 is a schematic view of the overall structure of the angle control mechanism of the present invention;
FIG. 6 is a schematic structural view of the support leg assembly of the present invention in a collapsed condition;
FIG. 7 is a schematic view of the support leg assembly of the present invention in an expanded configuration;
FIG. 8 is a schematic view of the overall structure of the splice of the present invention;
fig. 9 is a schematic diagram of the multi-vehicle splicing of the present invention.
In the figure: 1. A carrier loader; 2. a multi-segment vehicle-mounted platform; 21. a main board is arranged on the vehicle; 22. a first middle plate; 23. a second middle plate; 24. a first outer section plate; 25. a second outer section panel; 3. a support leg assembly; 31. connecting angle steel; 32. supporting legs; 321. a main member; 322. a buffer; 323. a universal wheel; 33. a support leg pull rod; 34. supporting leg and retracting rod; 4. an angle control mechanism; 41. a drive mechanism; 411. a motor; 412. a speed reducer; 413. a linear steering engine base; 414. a linear steering engine push rod; 42. a rotating mechanism; 421. a triangular rotating member; 422. a triangular rotating member base; 43. a fixing mechanism; 431. a pull rod; 432. a plate connecting seat; 433. the plate connecting seat base; 5. splicing pieces; 51. an L-shaped steel frame; 52. a connecting plate; 6. and (4) reinforcing ribs.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
The embodiment provides a preferred embodiment, as shown in fig. 1 to 9, a splicing two-section folding vehicle-mounted unfolding platform is arranged on an external hanging platform of a carrier vehicle 1, and the unfolding platform comprises a foldable or unfolded multi-section vehicle-mounted platform 2, a plurality of foldable supporting leg assemblies 3 and a plurality of angle control mechanisms 4 for controlling the multi-section vehicle-mounted platform 2 to fold or unfold.
The multi-section vehicle-mounted platform 2 is of a foldable structure and comprises a vehicle-mounted main board 21, a first middle section board 22, a second middle section board 23, a first outer section board 24 and a second outer section board 25, wherein the vehicle-mounted main board 21 is arranged at the top of the externally-hung platform of the carrier vehicle 1, and two side edges of the vehicle-mounted main board 21 in the length direction are respectively hinged with the first middle section board 22 and the second middle section board 23; the side of the first middle plate 22 away from the vehicle main plate 21 is hinged to a side of the first outer plate 24 in the length direction, and the side of the second middle plate 23 away from the vehicle main plate 21 is hinged to a side of the second outer plate 25 in the length direction. The bottom of the main board 21 on the vehicle is provided with a groove, so that the folding and installation of the supporting leg assembly 3 and the angle control mechanism 4 are facilitated.
The supporting leg assemblies 3 are of a foldable structure, the supporting leg assemblies 3 are mounted at the bottoms of the first middle section plate 22, the second middle section plate 23, the first outer section plate 24 and the second outer section plate 25, preferably, the number of the supporting leg assemblies 3 mounted at the bottom of each section plate is four, and the supporting leg assemblies are mounted at the positions, close to four corners, of each section plate respectively. The supporting leg assembly 3 comprises a connecting angle steel 31 and a supporting leg 32, the connecting angle steel 31 is fixedly connected to the bottom of each section of plate, and one end of the supporting leg 32 is hinged to one end of the connecting angle steel 31. The support leg 32 comprises a main member 321, a buffer 322 and a universal wheel 323 which are sequentially arranged in the axial direction, wherein one end of the main member 321 is hinged with one end of the connecting angle steel 31, the other end of the main member 321 is fixedly connected with the buffer 322, and the buffer 322 is hinged with the universal wheel 323.
The embodiment further comprises a supporting leg pull rod 33 and a supporting leg retracting rod 34, one end of the supporting leg pull rod 33 is hinged to the other end of the connecting angle steel 31, the other end of the supporting leg pull rod 33 is hinged to one end of the supporting leg retracting rod 34, and the other end of the supporting leg retracting rod 34 is hinged to the main member 321. When the supporting leg assembly 3 needs to be unfolded, the first middle plate 22, the second middle plate 23, the first outer plate 24 and the second outer plate 25 need to be unfolded, the main member 321 is manually opened to be perpendicular to the connecting angle steel 31, and the supporting leg pull rod 33 and the supporting leg retracting rod 34 are in the same straight line; when the supporting leg assembly 3 needs to be retracted, the main member 321 is manually pressed towards the direction of the connecting angle steel 31, the hinged part of the supporting leg pull rod 33 and the supporting leg retracting rod 34 moves towards the direction of the connecting angle steel 31 until the supporting leg pull rod 33 is overlapped with the supporting leg retracting rod 34, so that the main member 321 is overlapped with the connecting angle steel 31, and the retraction of the supporting leg assembly 3 is realized.
The angle control mechanisms 4 are arranged at the bottoms of the first middle plate 22, the second middle plate 23, the first outer plate 24 and the second outer plate 25, preferably, two angle control mechanisms 4 are respectively arranged at the side edge of the first middle plate 22 hinged to the vehicle main plate 21, the side edge of the first middle plate 22 hinged to the first outer plate 24, the side edge of the first outer plate 24 far away from the first middle plate 22, the side edge of the second middle plate 23 hinged to the vehicle main plate 21, the side edge of the second middle plate 23 hinged to the second outer plate 25, and the side edge of the second outer plate 25 far away from the second middle plate 23.
The angle control mechanism 4 includes a driving mechanism 41, a rotating mechanism 42 and a fixing mechanism 43, the rotating mechanism 42 is installed at two ends of the driving mechanism 41, the rotating mechanism 42 is connected with the fixing mechanism 43, and the fixing mechanism 43 is fixedly connected to the bottoms of the first middle plate 22, the second middle plate 23, the first outer plate 24 and the second outer plate 25; the driving mechanism 41 is used for driving the rotating mechanism 42, and the rotating mechanism 42 is used for driving the fixing mechanism 43 to rotate.
The driving mechanism 41 comprises a motor 411, a speed reducer 412, a linear steering engine base 413 and a linear steering engine push rod 414, the output end of the motor 411 is connected with the speed reducer 412, the speed reducer 412 is connected with the linear steering engine base 413, the linear steering engine push rods 414 are arranged at two ends of the linear steering engine base 413, and a linear steering engine is mounted on the linear steering engine base 413. The drive mechanism 41 is parallel to the side of the segment plate to which it is adjacent.
Fixing mechanism 43 includes pull rod 431, plate connecting seat 432 and plate connecting seat base 433, and pull rod 431 both ends set up the ball pivot, and its one end is connected with triangle rotation piece 421, and the pull rod 431 other end is connected with plate connecting seat 432, and one side that plate connecting seat 432 kept away from pull rod 431 bottom rigid coupling with first middle section board 22, second middle section board 23, first outer section board 24 and second outer section board 25, and plate connecting seat 432 is articulated with plate connecting seat base 433 towards the tip of pull rod 431 one side. The pull rod 431, the plate connecting seat 432 and the plate connecting seat base 433 form a planar four-bar mechanism, which is located in a plane perpendicular to the plane of the driving mechanism 41. Therefore, the angle change motion from the transverse linear motion of the linear steering engine to the multi-section vehicle-mounted platform plate is realized through a precise link mechanism.
The embodiment further comprises a splicing element 5, wherein the splicing element 5 is arranged at the bottom of one side of the first outer section plate 24 or the second outer section plate 25 facing the external environment. The splicing piece 5 comprises an L-shaped steel frame 51 and a connecting plate 52, the longer side part of the L-shaped steel frame 51 is welded at the bottom of the first outer section plate 24 or the second outer section plate 25 at the bottom, the longer side part of the L-shaped steel frame 51 extends out of the first outer section plate 24 or the second outer section plate 25, and the shorter side of the L-shaped steel frame 51 is perpendicular to the first outer section plate 24 or the first outer section plate 24 and is used for providing support for the longer side of the L-shaped steel frame 51 to enable the L-shaped steel frame 51 to be more stable. The connecting plate 52 is disposed at a right angle of the L-shaped steel frame 51101, so that the structure of the splice 5 is more stable. The splicer 5 is used for realizing the concatenation between a plurality of carrier cars 1, only need with expand the platform tip on other carrier cars 1 erect on the splicer 5 can.
This embodiment still includes stiffening rib 6, because the folding of the supporting leg subassembly 3 and angle control mechanism 4 of being convenient for and the installation mainboard 21 bottom fluting on the car, so in order to make the intensity of each section board still satisfy the demand, form to be tetragonal frame structure through four stiffening ribs 6 end to end at each section board bottom, preferably, each stiffening rib 6 junction is located the middle part of each section board side, and the setting of stiffening rib 6 has satisfied the intensity requirement of each section board.
The embodiment also provides an operation method of the splicing two-section folding vehicle-mounted unfolding platform, which comprises a controller, wherein the controller controls the driving mechanism 41 to operate, and the operation method comprises an unfolding method and a folding method;
the unfolding method specifically comprises the following steps:
step S1, unfolding of the first middle plate 22
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first middle section plate 22 and close to the vehicle upper main plate 21 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so as to drive a triangular rotating piece 421 to rotate towards the external environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the first middle section plate 22 hinged with the vehicle upper main plate 21 to rotate downwards;
meanwhile, the controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first middle plate 22 and close to the first outer plate 24 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress towards a linear steering engine base 413, so that a triangular rotating piece 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the first middle plate 22 hinged to the first outer plate 24 to descend downwards;
step S2, unfolding of the first outer panel 24
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first outer section plate 24 and close to the first middle section plate 22 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress towards a linear steering engine base 413, so that a triangular rotating member 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating member 421 pulls a pull rod 431 to drive one side of the first outer section plate 24 hinged with the first middle section plate 22 to descend downwards;
meanwhile, the controller controls the driving mechanism 41 of the angle control mechanism 4 arranged on the first outer section plate 24 far away from the first middle section plate 22 to operate, namely the motor 411 of the driving mechanism 41 operates, and then drives the two linear steering engine push rods 414 to push away from the linear steering engine base 413, so as to drive the triangular rotating piece 421 to rotate towards the external environment, and therefore the triangular rotating piece 421 pulls the pull rod 431 to drive one side of the first outer section plate 24 far away from the first middle section plate 22 to lift upwards;
step S3, unfolding of the second middle plate 23
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the second middle plate 23 and close to the vehicle upper main plate 21 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so as to drive a triangular rotating piece 421 to rotate towards the external environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second middle plate 23 hinged with the vehicle upper main plate 21 to rotate downwards;
meanwhile, the controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the second middle section plate 23 and close to the second outer section plate 25 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress towards a linear steering engine base 413 direction, so that a triangular rotating piece 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second middle section plate 23 hinged with the second outer section plate 25 to descend downwards;
step S4, unfolding of the second outer panel 25
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the second outer section plate 25 and close to the second middle section plate 23 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress towards a linear steering engine base 413, so that a triangular rotating piece 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second outer section plate 25 hinged to the second middle section plate 23 to descend downwards;
meanwhile, the controller controls the driving mechanism 41 of the angle control mechanism 4 arranged on the second outer section plate 25 far away from the second middle section plate 23 to operate, namely the motor 411 of the driving mechanism 41 operates, and then drives the two linear steering engine push rods 414 to push away from the linear steering engine base 413, so as to drive the triangular rotating piece 421 to rotate towards the external environment, and therefore the triangular rotating piece 421 pulls the pull rod 431 to drive one side of the second outer section plate 25 far away from the second middle section plate 23 to lift upwards;
the folding method specifically comprises the following steps:
step S1, folding of the first middle panel 22
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first middle plate 22 and close to the vehicle upper main plate 21 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress in the direction close to a linear steering engine base 413, so as to drive a triangular rotating piece 421 to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the first middle plate 22 hinged with the vehicle upper main plate 21 to rotate upwards;
meanwhile, the controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first middle section plate 22 far away from the first outer section plate 24 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so that a triangular rotating member 421 is driven to rotate towards the external environment, and therefore the triangular rotating member 421 pulls a pull rod 431 to drive one side of the first middle section plate 22 hinged to the first outer section plate 24 to lift upwards;
step S2, folding of the first outer panel 24
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the first outer section plate 24 and close to the first middle section plate 22 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so that a triangular rotating member 421 is driven to rotate towards the external environment, and therefore the triangular rotating member 421 pulls a pull rod 431 to drive one side of the first outer section plate 24 hinged to the first middle section plate 22 to lift upwards;
meanwhile, the controller controls a driving mechanism 41 of the angle control mechanism 4 arranged on the first outer section plate 24 far away from the first middle section plate 22 to operate, namely a motor 411 of the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to be compressed in the direction close to a linear steering engine base 413, so that a triangular rotating piece 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the first outer section plate 24 far away from the first middle section plate 22 to press downwards;
step S3, unfolding of the second middle plate 23
The controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the second middle plate 23 and close to the vehicle upper main plate 21 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to compress in the direction close to a linear steering engine base 413, so as to drive a triangular rotating piece 421 to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second middle plate 23 hinged with the vehicle upper main plate 21 to rotate upwards;
meanwhile, the controller controls a driving mechanism 41 of an angle control mechanism 4 arranged on the second middle section plate 23 and close to the second outer section plate 25 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so that a triangular rotating piece 421 is driven to rotate towards the external environment, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second middle section plate 23 hinged with the second outer section plate 25 to lift upwards;
step S4, unfolding of the second outer panel 25
The controller controls a driving mechanism 41 of the angle control mechanism 4 arranged on the second outer section plate 25 and close to the second middle section plate 23 to operate, namely a motor 411 on the driving mechanism 41 operates, and then drives two linear steering engine push rods 414 to push away from a linear steering engine base 413, so as to drive a triangular rotating piece 421 to rotate towards the external environment, and therefore the triangular rotating piece 421 pulls a pull rod 431 to drive one side of the second outer section plate 25 hinged to the second middle section plate 23 to lift upwards;
meanwhile, the controller controls the driving mechanism 41 arranged on the second outer section plate 25 and far away from the angle control mechanism 4 on the second middle section plate 23 side to operate, namely the motor 411 of the driving mechanism 41 operates, then the two linear steering engine push rods 414 are driven to compress in the direction close to the linear steering engine base 413, so that the triangular rotating piece 421 is driven to rotate towards the internal environment direction, and therefore the triangular rotating piece 421 pulls the pull rod 431 to drive one side, far away from the second middle section plate 23, of the second outer section plate 25 to press downwards.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a two-section folding on-vehicle platform that expandes that can splice, is including the carrier loader that has external platform, its characterized in that includes:
the foldable or unfoldable multi-section vehicle-mounted platform comprises a vehicle-mounted main board, a first middle board, a second middle board, a first outer board and a second outer board, wherein the vehicle-mounted main board is arranged at the top of the external hanging platform of the carrying vehicle, and two side edges of the vehicle-mounted main board in the length direction are respectively hinged with the first middle board and the second middle board; the side edge of the first middle section plate, which is far away from the vehicle main plate, is hinged with the first outer section plate, and the side edge of the second middle section plate, which is far away from the vehicle main plate, is hinged with the second outer section plate;
the foldable support leg assemblies comprise connecting angle steel and support legs, the connecting angle steel is fixedly connected to the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate, and one end of each support leg is hinged to one end of the connecting angle steel;
the angle control mechanisms are arranged at the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate;
the sizes of the board surfaces of the on-board main board, the first middle board, the second middle board, the first outer board and the second outer board are all consistent;
the angle control mechanism comprises a driving mechanism, a rotating mechanism and a fixing mechanism, wherein the rotating mechanism is arranged at two ends of the driving mechanism and is connected with the fixing mechanism, and the fixing mechanism is fixedly connected to the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate; the driving mechanism is used for driving the rotating mechanism, and the rotating mechanism is used for driving the fixing mechanism to rotate;
the driving mechanism comprises a motor, a speed reducer, a linear steering engine base and a linear steering engine push rod, wherein the output end of the motor is connected with the speed reducer, the speed reducer is connected with the linear steering engine base, and the linear steering engine push rod is arranged at two ends of the linear steering engine base;
the rotating mechanism comprises a triangular rotating part and a triangular rotating part base, the triangular rotating part is in a right-angled triangle shape, the end of one right-angled side of the triangular rotating part, which is far away from the right angle, is hinged with the linear steering engine base, the other right-angled side of the triangular rotating part is provided with the triangular rotating part base, and the end of the right-angled side, which is provided with the triangular rotating part base, which is far away from the right angle is hinged with the fixing mechanism;
the fixing mechanism comprises a pull rod, a plate connecting seat and a plate connecting seat base, one end of the pull rod is connected with the triangular rotating part, the other end of the pull rod is connected with the plate connecting seat, one side, far away from the pull rod, of the plate connecting seat is fixedly connected with the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate, and the end, facing one side of the pull rod, of the plate connecting seat is hinged to the plate connecting seat base.
2. The spliceable two-segment folding vehicular unfolding platform as claimed in claim 1, wherein: the supporting leg includes axial major component, buffer and the universal wheel that sets gradually, major component one end with angle connector one end is articulated, the major component other end with the buffer rigid coupling, the buffer with the universal wheel is articulated.
3. The splicing type two-section folding vehicle-mounted unfolding platform as claimed in claim 2, wherein: the supporting leg pull rod is hinged to the other end of the connecting angle steel, the other end of the supporting leg pull rod is hinged to one end of the supporting leg retracting rod, and the other end of the supporting leg retracting rod is hinged to the main member.
4. The spliceable two-segment folding vehicular unfolding platform as claimed in claim 1, wherein: the splicing piece is arranged at the bottom of one side, facing the external environment, of the first outer section plate or the second outer section plate.
5. The spliceable two-segment folding vehicular unfolding platform as claimed in claim 1, wherein: the reinforcing rib structure is characterized by further comprising a plurality of reinforcing ribs, wherein the four reinforcing ribs are connected end to form a quadrilateral frame structure, and the frame structure is arranged at the bottoms of the first middle section plate, the second middle section plate, the first outer section plate and the second outer section plate.
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| CN202110544423.XA CN113232576B (en) | 2021-05-19 | 2021-05-19 | Splicing two-section folding vehicle-mounted unfolding platform and operation method |
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| CN202110544423.XA CN113232576B (en) | 2021-05-19 | 2021-05-19 | Splicing two-section folding vehicle-mounted unfolding platform and operation method |
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| CN215476898U (en) * | 2021-06-07 | 2022-01-11 | 上海峰飞航空科技有限公司 | Unmanned aerial vehicle transport case |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4336181A1 (en) * | 1993-10-22 | 1995-04-27 | Ulrich Rosenke | Towing device |
| GB0207435D0 (en) * | 2002-03-28 | 2002-05-08 | Talbert Mfg Inc | A trailer with variable characteristics |
| CN108618902A (en) * | 2018-03-26 | 2018-10-09 | 邓建凯 | Ambulance first aid stretcher |
| CN209667235U (en) * | 2019-03-22 | 2019-11-22 | 李美婵 | A kind of expansible armoring balance car |
| CN110816688A (en) * | 2019-11-15 | 2020-02-21 | 无锡柏鹏科技有限公司 | Strong wind vehicle system integrated with side plate supporting mechanism |
| CN211167463U (en) * | 2019-11-14 | 2020-08-04 | 南京航空航天大学 | Self-adaptive landing deck control system of rotor type airplane |
| CN111572796A (en) * | 2020-06-04 | 2020-08-25 | 长春师范大学 | Fast large aircraft take-off and landing platform based on truck |
| CN112248909A (en) * | 2020-10-12 | 2021-01-22 | 天津航天中为数据系统科技有限公司 | Automatic homing device of on-vehicle unmanned aerial vehicle |
| CN112537457A (en) * | 2020-11-30 | 2021-03-23 | 浙江圣翔航空科技有限公司 | Vehicle-mounted parking apron |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265477A (en) * | 1979-07-05 | 1981-05-05 | Hall Thornton D | Folding sideboard gooseneck trailer |
| FR2639600B1 (en) * | 1988-11-28 | 1994-07-29 | Maysonnave Jean Patrick | UTILITY TYPE VEHICLE TRAY STRUCTURE MADE OF FOLDED SHEET AND COMPRISING LONGITUDINAL LONGERS |
| IL126467A0 (en) * | 1998-10-06 | 1999-08-17 | Mifned Ltd | Sea/land going container for vehicle |
| ES2417280B1 (en) * | 2011-12-30 | 2014-06-09 | Eleuterio SANSALONI REIG | TOWING APPLICABLE TO LANDING; TAKEOFF; STORAGE AND TRANSPORTATION OF HELICOPTERS |
| CN103832508B (en) * | 2013-12-03 | 2016-06-29 | 海丰通航科技有限公司 | There is the helicopter trailer of landing, security function |
| CN106787105A (en) * | 2016-12-20 | 2017-05-31 | 北京小米移动软件有限公司 | Unmanned plane vehicle-mounted charging device and vehicle |
| US10449890B2 (en) * | 2017-01-16 | 2019-10-22 | Michael Reid | Hinged truck bed stop |
| CN107416224B (en) * | 2017-06-21 | 2020-01-10 | 南京航空航天大学 | Motor-driven unmanned aerial vehicle recovery unit |
| CN210363527U (en) * | 2018-07-23 | 2020-04-21 | 广西科技大学 | A guarantee car for unmanned aerial vehicle transportation operation |
| CN109322512A (en) * | 2018-11-06 | 2019-02-12 | 武汉理工大学 | A kind of small-size multifunction Culture complex and its building method based on AGV Yu machine person cooperative work |
| CN111688943A (en) * | 2020-06-05 | 2020-09-22 | 常州工学院 | Unmanned aerial vehicle is with supplementary lift platform convenient to carry |
| CN112124179B (en) * | 2020-09-23 | 2022-01-25 | 东风越野车有限公司 | Can carry on large-scale unmanned aerial vehicle's cabin and vehicle |
-
2021
- 2021-05-19 CN CN202110544423.XA patent/CN113232576B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4336181A1 (en) * | 1993-10-22 | 1995-04-27 | Ulrich Rosenke | Towing device |
| GB0207435D0 (en) * | 2002-03-28 | 2002-05-08 | Talbert Mfg Inc | A trailer with variable characteristics |
| CN108618902A (en) * | 2018-03-26 | 2018-10-09 | 邓建凯 | Ambulance first aid stretcher |
| CN209667235U (en) * | 2019-03-22 | 2019-11-22 | 李美婵 | A kind of expansible armoring balance car |
| CN211167463U (en) * | 2019-11-14 | 2020-08-04 | 南京航空航天大学 | Self-adaptive landing deck control system of rotor type airplane |
| CN110816688A (en) * | 2019-11-15 | 2020-02-21 | 无锡柏鹏科技有限公司 | Strong wind vehicle system integrated with side plate supporting mechanism |
| CN111572796A (en) * | 2020-06-04 | 2020-08-25 | 长春师范大学 | Fast large aircraft take-off and landing platform based on truck |
| CN112248909A (en) * | 2020-10-12 | 2021-01-22 | 天津航天中为数据系统科技有限公司 | Automatic homing device of on-vehicle unmanned aerial vehicle |
| CN112537457A (en) * | 2020-11-30 | 2021-03-23 | 浙江圣翔航空科技有限公司 | Vehicle-mounted parking apron |
Non-Patent Citations (1)
| Title |
|---|
| 《飞机起落架收放系统动力学分析与试验》;印寅等;《振动、测试与诊断》;20160815;第36卷(第4期);641-646、806-807 * |
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|---|---|
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