CN219790563U - Unmanned aerial vehicle takes off and land platform's expansion mechanism, unmanned aerial vehicle takes off and land platform and fire control vehicle - Google Patents

Abstract

The utility model provides a unfolding mechanism of an unmanned aerial vehicle taking-off and landing platform, the unmanned aerial vehicle taking-off and landing platform and a fire-fighting vehicle, which are applied to the technical field of unmanned aerial vehicle taking-off and landing platform unfolding mechanisms and comprise a driving part, a primary push rod and a secondary push rod; the first-stage push rod is provided with a rotating part, one end of the first-stage push rod is arranged in a rotating and reciprocating mode, the rotating part is arranged on a rod body at the other end of the first-stage push rod, and the rotating part is rotationally connected with a first hinging seat connected with the side plate; one end of the secondary push rod is rotationally connected with a second hinging seat connected with the top plate, the other end of the secondary push rod is rotationally connected with one end of the primary push rod, and the primary push rod and the secondary push rod are configured to enable the top plate and the side plates to reach a preset state when the primary push rod moves from a retracted position to an extended position. The two-stage simultaneous unfolding of the side plate and the top plate is completed through the linear motion of the first-stage push rod, so that the driving device is reduced, the driving mechanism is simplified, the structural weight can be obviously lightened, the product cost is reduced, and the safety and the reliability of the platform are improved.

Description

Unmanned aerial vehicle takes off and land platform's expansion mechanism, unmanned aerial vehicle takes off and land platform and fire control vehicle

Technical Field

The utility model relates to the technical field of unmanned aerial vehicle take-off and landing platform unfolding mechanisms, in particular to an unmanned aerial vehicle take-off and landing platform unfolding mechanism, an unmanned aerial vehicle take-off and landing platform and a fire-fighting vehicle.

Background

The unmanned aerial vehicle take-off and landing platform is an operation platform which is used for taking off and landing as an unmanned aerial vehicle, and can be used for conveniently transporting the unmanned aerial vehicle, replacing loads and the like. Obviously, the setting of the landing platform can expand the application of the unmanned aerial vehicle. For example, in the field of fire control, unmanned aerial vehicles can realize high-rise or high-altitude fire extinguishment through quick supply and quick take-off and landing of unmanned aerial vehicle take-off and landing platforms.

It should be appreciated that in order to enhance the mobility performance, the unmanned aerial vehicle is transported to a destination by a vehicle or fire-fighting vehicle, and the landing requirements of the unmanned aerial vehicle are met by the vehicle or vehicle configuring a deployable landing platform.

In the prior art, each part that unmanned aerial vehicle take-off and landing platform adopted adopts single-stage independent drive's mode to expand respectively, namely needs to be equipped with expansion mechanism independently at each part, and the expansion mechanism of each level needs to set up the installing support alone, still needs to consider the drive stroke design of each level of drive. The mode has the defects of occupying too much lifting platform space, having heavy structure weight, having high product cost and having low platform safety.

Disclosure of Invention

The utility model provides a unfolding mechanism of an unmanned aerial vehicle take-off and landing platform, the unmanned aerial vehicle take-off and landing platform and a fire-fighting vehicle, which are used for solving the defects of excessive take-off and landing platform space occupation, large structural weight, high product cost and low platform safety in the prior art.

The utility model provides an unfolding mechanism of an unmanned aerial vehicle take-off and landing platform, which comprises a driving part, a first-stage push rod and a second-stage push rod; the driving part is rotationally connected with one end of the primary push rod, so that the driving part drives the primary push rod to reciprocate; the first-stage push rod is provided with a rotating part, the rotating part is arranged on a rod body close to the other end of the first-stage push rod, and the rotating part is adapted to be in rotating connection with a first hinging seat on the unmanned aerial vehicle take-off and landing platform; one end of the secondary push rod is rotationally connected with the other end of the primary push rod, and the other end of the secondary push rod is adapted to be rotationally connected with a second hinging seat on the unmanned aerial vehicle take-off and landing platform; wherein the primary push rod and the secondary push rod are configured to be driven by the driving component to operate in a stowed position and a deployed position of the deployment mechanism so that the unmanned aerial vehicle landing platform reaches a preset state.

According to the unfolding mechanism, the first-stage push rod can rotate while the driving part drives the linear reciprocating sliding, so that the next-stage push rod and the second-stage push rod are unfolded or closed simultaneously under the driving of the driving part to reach a preset opening or closing state.

According to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform, the rod body of the primary push rod comprises the main body section and the bending section, the main body section is rotationally connected with the driving part, the bending section is rotationally connected with the secondary push rod, and the bending section is constructed at an angle with the main body section, so that the connection position of the bending section and the secondary push rod in the unfolding position is lower than the connection position of the rotating part and the first hinging seat.

According to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform, provided by the utility model, the unfolding mechanism further comprises a base, and one end of the primary push rod is arranged in the base in a rotating and reciprocating mode.

According to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform provided by the utility model, the base is provided with the sliding groove, the sliding groove is internally provided with the sliding part, the sliding part is connected with the shaft pin, and the primary push rod is rotatably connected with the driving part through the shaft pin.

According to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform, the driving part is provided with two output ends, one output end is connected with the first-stage push rod, and the other output end is connected with the other first-stage push rod.

The utility model also provides an unmanned aerial vehicle take-off and landing platform, which comprises a top plate, side plates and a bottom plate, wherein the top plate is arranged adjacent to the side plates, and the side plates are arranged adjacent to the bottom plate; the lifting platform further comprises the unfolding mechanism.

According to the unmanned aerial vehicle take-off and landing platform provided by the utility model, the top plate and the side plates are vertically arranged in the retracted position.

According to the unmanned aerial vehicle take-off and landing platform provided by the utility model, the first hinging seat and the second hinging seat are arranged on the same side of the side plate and the top plate, the first hinging seat is arranged on the side, close to the side plate, close to the bottom plate, and the second hinging seat is arranged on the side, close to the side plate, of the top plate.

According to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform, which is provided by the utility model, the base is connected below the bottom plate. The base is connected below the floor, the driving mechanism is arranged below the lifting platform, the flatness and the effective space above the lifting platform are obviously improved, and the available space is improved.

The utility model also provides a fire engine, which comprises a fire engine, wherein the fire engine is provided with at least one unfolding mechanism or the unmanned aerial vehicle take-off and landing platform.

The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

according to the unfolding mechanism of the unmanned aerial vehicle take-off and landing platform and the unmanned aerial vehicle take-off and landing platform, the whole structure can realize two-stage unfolding driving only by one power source driving through the arrangement of the first-stage push rod and the second-stage push rod, so that the number of the power sources is reduced; the setting of rotation portion can regard as the rotation fulcrum of one-level push rod for by rotation portion to regard as the arm of force with the drive linkage segment, with second grade push rod tie point as resistance point, further make the motion between the mechanism have lever ratio, can show reduction actuating mechanism working stroke, make things convenient for structural arrangement and design, reduce drive arrangement, simplify actuating mechanism and can obviously lighten structure weight, reduce product cost and promote platform security and reliability.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a deployment mechanism provided by the present utility model;

FIG. 2 is a schematic diagram of a deployment mechanism according to a second embodiment of the present utility model;

FIG. 3 is a schematic diagram of a deployment mechanism according to a third embodiment of the present utility model;

FIG. 4 is a schematic diagram of a deployment mechanism according to the present utility model;

fig. 5 is a schematic structural diagram of an unfolding mechanism of an unmanned aerial vehicle take-off and landing platform provided by the utility model;

FIG. 6 is a second schematic structural view of an unfolding mechanism of the unmanned chassis type lifting platform provided by the utility model;

FIG. 7 is a schematic view of the connection structure of the base portion of the deployment mechanism provided by the present utility model;

FIG. 8 is a schematic view of a first stage pushrod in a deployment mechanism according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of an unmanned aerial vehicle landing platform provided by the utility model;

fig. 10 is a second schematic structural diagram of the unmanned aerial vehicle landing platform provided by the utility model.

Reference numerals:

1: a bottom plate; 2: a base; 2-1: a chute; 2-2: a slide block; 3: a first-stage push rod; 3-1: a main body section; 3-2: bending sections; 3-3 rotating parts; 4: a side plate; 5: a first hinge base; 6: a second-stage push rod; 7: a top plate; 8: the second hinge seat; 9: a movable groove; 10: a driving part; 11: and a frame.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", "left", "right", "bottom", "top", etc. are based on the directions or positional relationships indicated in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated unless specifically limited otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "coupled," "configured" and the like are to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; either directly, or indirectly, through intermediaries, may be internal to each other, or may be in a relationship between two elements, unless otherwise specifically defined. The above terms are understood in the specific meaning of the present utility model according to circumstances, for those of ordinary skill in the art.

The following describes a take-off and landing platform of an unmanned aerial vehicle according to the present utility model with reference to fig. 1 and 5; the unmanned aerial vehicle take-off and landing platform can be arranged in a carriage or other boxes, and is further suitable for being arranged in a fire engine so as to be used for taking off and landing of the unmanned aerial vehicle. The carriage or the box comprises a bottom plate 1, side plates 4 and a top plate 7, wherein the side plates 4 are rotatably connected to the bottom plate 1, and the top plate 7 is rotatably connected to the side plates 4. Wherein, the side plate 4 is provided with a first hinging seat 5, and the top plate 7 is provided with a second hinging seat 8. In some embodiments, the connection of the bottom panel 1, the side panels 4 and the top panel 7 is by means of a hinge. The first hinging seat 5 and the second hinging seat 8 are connected with the unfolding mechanism, so that the unmanned aerial vehicle lifting platform can be unfolded or closed.

It will be appreciated that the connection of the bottom plate 1, the side plate 4 and the top plate 7 is not limited, and specifically, the connection may be realized by a hinge, the connection may be realized by rotation, the connection may be abutting, and the expansion mechanism may support the plates to be closed or expanded.

The unmanned aerial vehicle unfolding mechanism comprises a driving part 10, a primary push rod 3 and a secondary push rod 6, as shown in fig. 1 and 2; the driving part 10 is rotationally connected with one end of the primary push rod 3, the primary push rod 3 is provided with a rotating part 3-3, the rotating part 3-3 is arranged on a rod body close to the other end of the primary push rod 3, and the rotating part 3-3 is rotationally connected with a first hinging seat 5 on the unmanned aerial vehicle lifting platform; one end of the secondary push rod 6 is rotationally connected with the other end of the primary push rod 3, and the other end of the secondary push rod 6 is rotationally connected with a second hinging seat 8 on the unmanned aerial vehicle take-off and landing platform; wherein the primary push rod 3 and the secondary push rod 6 are configured to be driven by the driving part 10 to operate in the retracted position and the extended position of the expanding mechanism so that the unmanned aerial vehicle landing platform reaches a preset state.

In the unmanned aerial vehicle unfolding mechanism in the embodiment, the first-stage push rod 3 and the second-stage push rod 6 are rotationally connected to form a link mechanism, when the driving component 10 drives the first-stage push rod 3 to linearly move, the first-stage push rod 3 also rotates to realize rotary and reciprocating movement, the rotary and reciprocating movement is converted into lever movement through the rotary connection of the rotary part 3-3 and the first hinging seat 5, namely, the rotary part 3-3 is taken as a fulcrum, and the sections from the rotary part 3-3 to the driving component 10 are taken as force arms to drive the second-stage push rod 6, so that the working stroke of the driving mechanism can be obviously reduced, and the structural arrangement and design are convenient.

As can be seen from fig. 1, fig. 2 and the above description, the structure of the present utility model is a single degree of freedom motion mechanism, and when the primary push rod 3 is in a static state, the whole mechanism is in a fully restrained state, and the mechanism is in a determined position. Through the description of the above structure, it can be foreseen that the primary push rod 3 makes the unmanned aerial vehicle take-off and landing platform close when the stowing position, and when the primary push rod 3 moves to the unfolding position, the side plate 4 and the top plate 7 are unfolded, so that the unmanned aerial vehicle take-off and landing platform is opened.

As shown in fig. 5, in some embodiments, one end of the primary push rod 3 is disposed in a base 2 in a rotating and reciprocating manner, a rotating portion 3-3 is disposed on a rod body of the primary push rod 3 on a side away from the base 2, the rotating portion 3-3 is hinged to the first hinge base 5 to form a rotating connection, and the primary push rod 3 is configured to operate in a retracted position and an extended position. Wherein the stowed position is the position of the primary pushrod 3 within the base 2 when the case is closed to define the take off, landing, or movement of an unmanned aerial vehicle or other item within the case. The unfolded position is the position of the first-stage push rod 3 in the base 2 when the box body is unfolded, and the box body is unfolded to be used for taking the unfolded side plates 4 and the unfolded top plate 7 as lifting platforms. The connection between the primary push rod 3 and the base 2 is such that the primary push rod 3 can slide and rotate along the base 2, as will be described in detail in the following embodiments. In some specific embodiments, the base 2 may be connected below the bottom plate 1.

As further shown in fig. 5, one end of the secondary push rod 6 is hinged to the second hinge seat 8 on the top plate to form a rotating connection, and the other end of the secondary push rod 6 is hinged to one end, far away from the base 2, of the primary push rod 3 to form a rotating connection, and the primary push rod 3 and the secondary push rod 6 are configured to be driven by a driving component to drive the unfolding mechanism to move from the folding position to the unfolding position so as to unfold the top plate 7 and the side plate 4 into the same plane or close the same plane to a preset state of the closed space. It is of course contemplated that in some embodiments, the predetermined state may be any other state, for example, that the top panel 7 and the side panel 4 are unfolded at an angle.

The driving part 10 may be an electric cylinder, through which the linear reciprocating motion of the first-stage push rod 3 is driven. Of course, the driving member 10 may be another mechanism capable of performing linear motion, such as a hydraulic cylinder, a motor, or the like. In a further embodiment, the driving component 10 may have two output ends, the unmanned aerial vehicle take-off and landing platform is provided with a pair of unfolding mechanisms, the two output ends are respectively connected with one first-stage push rod 3, for example, may be a double-shaft double-rod cylinder or a double-shaft motor, and are respectively connected with the first-stage push rod 3 through two output cylinder rods, so that when the unmanned aerial vehicle take-off and landing platform is unfolded as a box body, the unmanned aerial vehicle take-off and landing platform can realize the separate driving and unfolding of two sides through one driving component 10, the number of the driving components 10 is greatly reduced, and the manufacturing cost and the whole weight are reduced.

It will be appreciated that in the above embodiments, the first hinge seat 5 and the second hinge seat 8 respectively connected to the side plate 4 and the top plate 7 may be connected to the same side or different sides of the side plate 4 and the top plate 7, respectively. In a specific embodiment, as shown in fig. 1 and 2, when the first hinge seat 5 and the second hinge seat 8 are connected on the same side, the first hinge seat 5 and the second hinge seat 8 are both connected on the right side in the illustrated direction, and the corresponding primary push rod 3 and secondary push rod 6 are also connected on the right sides of the side plate 4 and the top plate 7. In a specific embodiment, as shown in fig. 3, when the first hinge seat 5 and the second hinge seat 8 are connected on different sides, that is, the first hinge seat 5 is located on the right side, and the second hinge seat 8 is located on the left side, at this time, a movable slot is machined on the side plate 4 to enable the secondary push rod 6 to extend out to hinge with the second hinge seat 8, so as to realize connection on different sides; the first hinge seat 5 may be located on the left side and the second hinge seat 6 may be located on the right side, and the structure in this state is set in the same manner as that described above, and will not be described herein. In some embodiments, instead of configuring the base 2 as a guide for the primary push rod 3, the primary push rod 3 may be directly hinged to the driving part 10 to implement rotation and reciprocation of the primary push rod 3.

Further, the shapes of the primary push rod 3 and the secondary push rod 6 are not limited, and can be square pipes, round pipes and the like, and also can be straight pipes, bent pipes, solid pipes, hollow pipes and the like, and the specific shapes are matched according to the actual installation positions and driving requirements.

In a further embodiment, the first hinge seat 5 is connected to the bottom of the side plate 4 on the side close to the bottom plate 1, and the second hinge seat 8 is connected to the bottom of the top plate 7 on the side close to the side plate 4.

As shown in fig. 1 and 8, in some embodiments, when the first-stage push rod 3 is in the retracted position, the side plates 4 and the top plate 7 are arranged in a vertical state, so that when the specific box body structure is implemented, the top plates 7 on two sides are used for closing the top, and the side plates 4 on two sides are used for closing two sides, so that the box body is closed and opened, and further the lifting and lowering of the unmanned aerial vehicle can be met.

As shown in fig. 7, in a specific embodiment of the unfolding mechanism of the unmanned aerial vehicle landing platform, a sliding groove 2-1 is processed in a base 2, a sliding part is configured in the sliding groove 2-1, the sliding part comprises two sliding blocks 2-2 which are respectively connected to two side walls of the sliding groove 2-1 in a sliding manner, the two sliding blocks 2-2 are connected through a shaft pin, and a first-stage push rod 3 and a driving part 10 are respectively hinged on the shaft pin; specifically, sliding rails are respectively arranged on two side walls of the sliding groove 2-1, and the sliding block 2-2 is slidably connected to the sliding rails, so that the sliding block 2-2 slides along the sliding rails under the driving of the driving component 10, and the primary push rod 3 slides along the sliding groove 2-1 due to the above connection mode of the shaft pin and the primary push rod 3. Thereby enabling the primary push rod 3 to reciprocate between the stowed position and the deployed position.

In a specific embodiment, as shown in fig. 8, the primary push rod 3 includes a main body section 3-1 and a bending section 3-2, the main body section 3-1 is hinged on a shaft pin in the base 2, the bending section 3-2 is hinged with the secondary push rod 6, the bending section 3-2 and the main body section 3-1 form a certain angle, so that the hinged position of the bending section 3-2 and the secondary push rod 6 is lower than the hinged position of the primary push rod 3 and the first hinge seat 5, a lever structure is formed by the first hinge seat 5, in the lever structure, the first hinge seat 5 is used as a fulcrum, a rotating part 3-3 is connected in the primary push rod 3, a rotating sleeve is selected for use by the rotating part 3-3, and the primary push rod 3 can rotate around the first hinge seat 5 through the rotating sleeve. Specifically, the rotating sleeve is connected to the forming position of the main body section 3-1 and the bending section 3-2, and the bending section is formed by extending obliquely downwards from the position of the rotating sleeve.

It will be appreciated that in the above embodiment, referring to fig. 6, the hinge point of the primary push rod 3 and the secondary push rod 6 may be set lower than the hinge point of the primary push rod 3 and the first hinge seat 5, so that the space occupation of the components can be further reduced, and the overall mechanism is more compact. In a further embodiment, the first hinge seat 5 and the second hinge seat 8 are configured in a triangle structure, and hinge portions are respectively configured at the top ends of the first hinge seat 5 and the second hinge seat 8, and are respectively hinged with the primary push rod 3 and the secondary push rod 6 through the hinge portions.

In the above embodiment, the whole mechanism is single-degree-of-freedom in the unfolding process, when the electric cylinder works, the whole mechanism can generate corresponding action when the first-stage push rod 3 is pushed to slide in the base 2, when the electric cylinder does not work, the first-stage push rod 3 is static at a certain position in the base 2, and at the moment, the whole mechanism is also kept in a certain position state. As shown in fig. 2, specifically, when the primary push rod 3 moves to the left side under the driving of the electric cylinder, the primary push rod 3 pushes the side plate 4 to rotate outwards through the first hinge seat 5, meanwhile, the hinge point between the primary push rod 3 and the secondary push rod 6 moves upwards relative to the side plate 4, the secondary push rod 6 is pushed to move upwards further to move upwards relative to the side plate 4, so that the top plate 7 is pushed to rotate outwards, and finally, two stages of the side plate 4 and the top plate 7 are simultaneously unfolded outwards.

As shown in fig. 4, the utility model further provides an unmanned aerial vehicle taking-off and landing platform, which comprises a top plate 7, side plates 4 and a bottom plate 1, wherein the side plates 4 are rotatably connected with the bottom plate 1, and the top plate 7 is rotatably connected with the side plates 4; the curb plate 4 includes first articulated seat 5, and roof 7 includes second articulated seat 8, still includes the implementation structure of each expansion mechanism that above-mentioned provided, is connected with first articulated seat 5 and second articulated seat 8 respectively with expansion mechanism, and wherein, the drive motor or the drive chamber that have two output is selected to drive part 10 in the expansion mechanism, is connected with the one-level push rod 3 of both sides respectively through two output, realizes the expansion of the curb plate 4 and the roof 7 of drive both sides simultaneously by a drive part. It will be appreciated that the connection of the bottom plate 1, the side plate 4 and the top plate 7 is not limited, and specifically, the connection may be realized by a hinge, the connection may be realized by rotation, the connection may be abutting, and the expansion mechanism may support the plates to be closed or expanded. The connection of the specific unfolding mechanism can be referred to the connection of the unfolding mechanism with the side plate 4 and the top plate 7 described above.

As shown in fig. 9 and 10, the present utility model further provides a fire-fighting vehicle, specifically, the deployment mechanism of the unmanned aerial vehicle landing platform is arranged in a carriage at the rear part of the fire-fighting vehicle, a base 2 is arranged below a bottom plate 1 of the carriage, the base 2 is fixedly connected to a frame 11 of the carriage, the bottom plate 1 is connected to the frame 11, and a primary push rod 3 and a secondary push rod 6 are respectively hinged to a side plate 4 and a top plate 7. For a specific connection mode, reference is made to the connection structures of the primary push rod 3 and the secondary push rod 6 with the side plate 4 and the top plate 7 in the unfolding mechanism described above. In some embodiments, the base plate 1 is formed with a movable slot 9, the movable slot 9 allowing the primary push rod 3 to move between a stowed position and a deployed position. In some embodiments, the case is provided with a pair of unfolding mechanisms to achieve opening and closing of both sides. In some embodiments, two sets of deployment mechanisms are provided on each side of the housing, the deployment mechanisms on both sides being disposed at the distal and proximal ends of the housing, respectively, to ensure the connection strength of each side. Of course, in theory, multiple sets of deployment mechanisms, not limited to two sets, may also be provided in particular embodiments, with multiple sets of deployment mechanisms providing better connection strength, with particular number determinations being provided by demand. In some embodiments, only one drive member 10 is provided for a pair of deployment mechanisms, the drive member 10 having two outputs, which may be, for example, a dual-shaft dual-rod cylinder or a dual-shaft motor. The arrangement of the driving part 10 is greatly reduced.

Through the description of the above embodiments, those skilled in the art can clearly understand that in each embodiment, two-stage driving unfolding is performed by adopting a manner of hinging two push rods, and the two-stage unfolding of the whole mechanism can complete the unfolding and folding actions of the unmanned aerial vehicle take-off and landing platform by only one driving source, so that the number of driving mechanisms is reduced; further, as the first-stage push rod 3 is hinged with the first hinging seat 5 to form a lever structure, the motion between the mechanisms has lever ratio, the working stroke of the driving mechanism can be obviously reduced, and the arrangement and design of the structure are convenient; further, compared with the existing driving source which needs multiple stages, the whole movement mechanism is obviously simplified, and the flatness and effective space above the lifting platform are obviously improved. In conclusion, the reduction of the driving device and the simplification of the driving mechanism can obviously reduce the structural weight, reduce the product cost and improve the safety and the reliability of the platform, and the side plates 4 and the top plate 7 are unfolded at the same time, so that the unfolding efficiency is improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (11)

1. An unfolding mechanism of an unmanned aerial vehicle take-off and landing platform, which is characterized by comprising: the device comprises a driving part, a first-stage push rod and a second-stage push rod;

the driving part is rotationally connected with one end of the primary push rod, so that the driving part drives the primary push rod to reciprocate;

the first-stage push rod is provided with a rotating part, the rotating part is arranged on a rod body close to the other end of the first-stage push rod, and the rotating part is adapted to be in rotating connection with a first hinging seat on the unmanned aerial vehicle take-off and landing platform;

one end of the secondary push rod is rotationally connected with the other end of the primary push rod, and the other end of the secondary push rod is adapted to be rotationally connected with a second hinging seat on the unmanned aerial vehicle take-off and landing platform;

wherein the primary push rod and the secondary push rod are configured to be driven by the driving component to operate in a stowed position and a deployed position of the deployment mechanism so that the unmanned aerial vehicle landing platform reaches a preset state.

2. The deployment mechanism of claim 1, wherein the shaft of the primary pushrod comprises a main body section rotatably coupled to the drive member and a bending section rotatably coupled to the secondary pushrod, the bending section being angularly configured with the main body section such that in the deployed position the bending section is coupled to the secondary pushrod at a lower position than the rotational section is coupled to the first hinge mount.

3. The deployment mechanism of claim 1 or 2, further comprising a base within which one end of the primary pushrod is rotatably and reciprocally disposed.

4. The deployment mechanism of claim 3 wherein the base has a chute with a sliding portion disposed therein, the sliding portion having a pin attached thereto, the primary pushrod being rotatably coupled to the drive member via the pin.

5. The deployment mechanism of claim 1 wherein the drive member has two outputs, one output connected to the primary pushrod and the other output connected to the other primary pushrod.

6. The unmanned aerial vehicle take-off and landing platform is characterized by comprising a top plate, side plates and a bottom plate, wherein the top plate is arranged adjacent to the side plates, and the side plates are arranged adjacent to the bottom plate; the landing platform further comprising a deployment mechanism as claimed in any one of claims 1 to 5.

7. The unmanned aerial vehicle landing platform of claim 6, wherein the roof and the side panels are vertically disposed in the stowed position.

8. The unmanned aerial vehicle landing platform of claim 6, wherein the first hinge mount and the second hinge mount are disposed on the same side of the side plate and the top plate.

9. The unmanned aerial vehicle landing platform of claim 6, wherein the first hinge mount is disposed on a side of the side panel adjacent the bottom panel and the second hinge mount is disposed on a side of the top panel adjacent the side panel.

10. The unmanned aerial vehicle landing platform of claim 6, wherein the drive member is connected below the floor.

11. A fire fighting vehicle comprising a fire fighting vehicle configured with at least one deployment mechanism according to any one of claims 1-5 or an unmanned aerial vehicle landing platform according to any one of claims 6-10.