CN211922146U - Boarding device - Google Patents

Abstract

The embodiment of the utility model discloses a boarding device, which comprises a boarding plate, a connecting plate and at least one scissor jack, wherein the boarding plate is provided with a first end and a second end which are opposite; the connecting plate is positioned below the boarding plate and is provided with a third end and a fourth end which are opposite, and the first end of the boarding plate is hinged with the third end of the connecting plate through a first hinge shaft; the top of the scissor jack is hinged with the second end of the boarding plate through a second hinge shaft, and the bottom of the scissor jack is hinged with the fourth end of the connecting plate through a third hinge shaft. The embodiment of the utility model provides a structure to the device of ascending a car improves, makes the device of ascending a car adjust the angle of the board of ascending a car through cutting formula jack to make fork truck load and unload the operation in getting into the carriage of co-altitude through the device of ascending a car, with the discharge efficiency that improves the transfer.

Description

Boarding device

Technical Field

The utility model relates to a logistics technology field, concretely relates to device of riding on bus.

Background

In the prior art, in order to improve the unloading efficiency of the carriages in the logistics transit, a boarding device is generally arranged on a platform of the transit, and after the tail parts of the carriages of the trucks are parked close to the platform, a forklift moves from the platform into the carriages of the trucks through the boarding device so as to load and unload the cargoes in batches.

However, there are many types of existing trucks, and for different types of trucks, the heights of the carriages are different, and after a truck with a higher or lower carriage is parked close to the platform, a large height difference may be formed between the truck and the boarding device, so that the forklift cannot safely enter the carriage of the truck through the boarding device, and the unloading efficiency of the transfer is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a device of riding on the bus aims at improving the structure of the device of riding on the bus, makes the device of riding on the bus adjust the angle of boarding through cutting formula jack to make fork truck load and unload the operation in getting into the carriage of co-altitude through the device of riding on the bus, with the discharge efficiency who improves the transfer.

An embodiment of the utility model provides a device of riding on the bus, the device of riding on the bus includes:

a boarding plate having opposing first and second ends;

the connecting plate is positioned below the boarding plate and provided with a third end and a fourth end which are opposite, and the first end of the boarding plate is hinged with the third end of the connecting plate through a first hinge shaft;

the top of the scissor jack is hinged to the second end of the boarding plate through a second hinge shaft, and the bottom of the scissor jack is hinged to the fourth end of the connecting plate through a third hinge shaft.

In some embodiments of the present invention, the lower surface of the first end of the boarding plate is provided with a first hinge portion, the upper surface of the third end of the connecting plate is provided with a first support portion, and the first hinge shaft passes through the first hinge portion and the first support portion, so that the first end of the boarding plate is hinged to the third end of the connecting plate.

In some embodiments of the present invention, the lower surface of the second end of the boarding plate is provided with a second hinge portion, the top of the scissor jack is provided with a second support portion, and the second hinge shaft passes through the second hinge portion and the second support portion, so that the top of the scissor jack is hinged to the second end of the boarding plate.

In some embodiments of the present invention, the upper surface of the fourth end of the connecting plate is provided with a third supporting portion, the bottom of the scissor jack is fixed with a third hinge portion, and the third hinge shaft passes through the third hinge portion and the third supporting portion, so that the bottom of the scissor jack is hinged to the fourth end of the connecting plate.

In some embodiments of the present invention, the first hinge shaft, the second hinge shaft and the third hinge shaft are axially uniform.

In some embodiments of the present invention, the number of the scissor jacks is plural, and the plurality of scissor jacks are distributed in sequence along the axial direction of the first hinge shaft.

In some embodiments of the present invention, the hook structure is convexly disposed on the upper surface of the connecting plate.

In some embodiments of the present invention, the lower surface of the boarding plate is provided with a protruding reinforcing rib, and the reinforcing rib extends along the direction from the first end to the second end of the boarding plate.

In some embodiments of the present invention, the boarding device includes a tongue plate, and a side of the tongue plate is hinged to a side of the first end of the boarding plate.

In some embodiments of the present invention, the boarding device includes an access board, and a side of the access board is hinged to a side of the second end of the boarding board.

The utility model provides a device of riding on the bus is articulated through the first end that makes the boarding board and the third end of connecting plate to the second end that makes the boarding board supports the fourth end at the connecting plate through cutting formula jack. Therefore, after the tail part of the carriage of the truck is parked close to the platform, the height of the scissor jack can be adjusted according to the height of the tail part of the carriage, so that the inclination angle of the boarding plate is adjusted, the second end of the boarding plate is close to the height of the carriage, and a forklift or other carrying devices can move into the carriage through the boarding plate conveniently. Compared with the common hydraulic jack, the scissor jack has the advantages that the minimum stroke is smaller, the included angle formed by the boarding plate and the connecting plate can be smaller, the height of the second end of the boarding plate is lower, the boarding device can be suitable for the condition that the height difference between a boxcar and a platform is smaller, and the application range of the boarding device is widened.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an entering device provided by an embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a side view of the boarding device of FIG. 1;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is an enlarged view at C in fig. 3.

A boarding device 100; a boarding board 110; a first hinge 111; a first fixing plate 1111; a second hinge plate 1112; a second hinge portion 112; a first reinforcing rib 113; a connecting plate 120; a first support part 121; a first support plate 1211; a first hinge plate 1212; the third support portion 122; a hook structure 123; a hanging hole 1231; a scissor jack 130; a base 131; the third hinge 1311; the first support bar 132; a second support bar 133; a top seat 134; the second support portion 1341; a screw base 135; a screw rod 136; a mounting seat 137; a motor 138; a first hinge shaft 140; a second hinge shaft 141; a third hinge shaft 142; a control module 150; a tongue plate 160; a first hinge 161; a butt strap 170; a second hinge 171; and a second reinforcing rib 172.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the utility model provides a device of riding on bus. The following are detailed below.

Referring to fig. 1, 4 and 5, the boarding device 100 includes a boarding plate 110, a connecting plate 120 and at least one scissor jack 130, wherein the boarding plate 110 has opposite first and second ends, the connecting plate 120 is located below the boarding plate 110, and the connecting plate 120 has opposite third and fourth ends, the first end of the boarding plate 110 is hinged to the third end of the connecting plate 120 by a first hinge shaft 140 so that the boarding plate 110 can rotate in an up-and-down direction with respect to the connecting plate 120; the scissor jack 130 is located between the boarding plate 110 and the connecting plate 120, and a top of the scissor jack 130 is hinged to the second end of the boarding plate 110 through a second hinge shaft 141, and a bottom of the scissor jack 130 is hinged to the fourth end of the connecting plate 120 through a third hinge shaft 142. Therefore, the scissor jack 130 can be controlled to extend and retract, so that the boarding plate 110 is driven to rotate in the vertical direction relative to the connecting plate 120, the inclination angle of the boarding plate 110 is adjusted, and the height of the second end of the boarding plate 110 is adjusted.

After the tail of the carriage of the truck is parked close to the platform, the boarding device 100 can be placed on the platform, the lifting height of the scissor jack 130 is controlled according to the height of the tail of the carriage, the inclination angle of the boarding plate 110 is further adjusted, the second end of the boarding plate 110 is close to the height of the carriage, and therefore the forklift can move into the carriage through the boarding plate conveniently.

Moreover, compared with a common hydraulic jack, the scissor jack 130 has a smaller minimum stroke, so that an included angle formed by the boarding plate 110 and the connecting plate 120 can be smaller, that is, the height of the second end of the boarding plate 110 is lower, and therefore the boarding device 100 can be applied to the condition that the height difference between the boxcar and the platform is smaller, and the application range of the boarding device 100 is widened.

In addition, after the boarding plate 110, the connecting plate 120 and the scissor jack 130 of the boarding device 100 are connected with each other, a stable triangular structure can be formed, and the boarding device 100 is not easy to overturn and deform under the action of the gravity of the forklift when the forklift moves into a carriage through the boarding plate.

In some embodiments, as shown in fig. 3 and 4, a first hinge portion 111 is convexly disposed on a lower surface of the first end of the boarding plate 110, a first support portion 121 is convexly disposed on an upper surface of the third end of the connecting plate 120, and a first hinge shaft 140 passes through the first hinge portion 111 and the first support portion 121, so that the first end of the boarding plate 110 is hinged to the third end of the connecting plate 120. By providing the first support portion 121 on the upper surface of the connecting plate 120 and providing the first hinge portion 111 on the lower surface of the boarding plate 110 to be hinged to the first support portion 121, the strength of the hinge portion between the boarding plate 110 and the connecting plate 120 can be improved.

Specifically, the first support part 121 includes a first support plate 1211 disposed on an upper surface of the third end of the connecting plate 120, and a first hinge plate 1212 extending from an upper surface of the first support plate 1211, wherein a first hinge hole is formed through a side surface of the first hinge plate 1212; the first hinge part 111 comprises a first fixing plate 1111 arranged on the lower surface of the first end of the boarding plate 110, and a second hinge plate 1112 extending from the lower surface of the first fixing plate 1111, wherein a second hinge hole is formed in the side surface of the second hinge plate 1112, and the first hinge shaft 140 passes through the first hinge hole of the first hinge plate 1212 and the second hinge hole of the second hinge plate 1112 to hinge the first hinge plate 1212 and the second hinge plate 1112 together, so that the first end of the boarding plate 110 is hinged with the third end of the connecting plate 120.

The number of the first hinge plates 1212 is two, the two first hinge plates 1212 are sequentially distributed along the axial direction of the first hinge shaft 140, the second hinge plates 1112 are arranged on two sides of the two first hinge plates 1212, the number of the first hinge shafts 140 is two, the two first hinge shafts 140 respectively penetrate through the first hinge holes of the two first hinge plates 1212 and the second hinge holes of the second hinge plates 1112 on two sides of the two first hinge plates 1212, so that the two first hinge plates 1212 and the second hinge plates 1112 on two sides of the two first hinge plates 1212 are hinged together, and the hinge strength of the first end of the boarding plate 110 and the third end of the connecting plate 120 is further improved.

Of course, the number of the first hinge plates 1212 may be one, three, or more, and the second hinge plates 1112 are provided on both sides of each first hinge plate 1212. Alternatively, the number of the second hinge plates 1112 may be one or more, and the first hinge plates 1212 are distributed on both sides of each second hinge plate 1112, the number of the first hinge shafts 140 is equal to the number of the second hinge plates 1112, and each first hinge shaft 140 passes through a corresponding first hinge hole on the second hinge plate 1112 and a corresponding second hinge hole on the first hinge plate 1212 on both sides of the second hinge plate 1112, so as to hinge the second hinge plate 1112 and the first hinge plates 1212 on both sides of the second hinge plate 1112.

In some embodiments, the first support plate 1211 and the first hinge plate 1212 of the first support portion 121 are metal plates, and they may be fixedly connected together by welding. Alternatively, the first support plate 1211 and the first hinge plate 1212 may be formed as a single body by casting, forging, or the like.

Similarly, the first fixing plate 1111 and the second hinge plate 1112 of the first hinge portion 111 are metal plates, and they may be fixedly connected together by welding. Alternatively, the first fixing plate 1111 and the second hinge plate 1112 may be formed as an integral structure by casting, forging, or the like.

In some embodiments, as shown in fig. 5, a second hinge portion 112 is protruded at a lower surface of the second end of the boarding plate 110, a second support portion 1341 is protruded at a top portion of the scissor jack 130, and a second hinge shaft 141 passes through the second hinge portion 112 and the second support portion 1341, so that the top portion of the scissor jack 130 is hinged to the second end of the boarding plate 110. The strength of the hinge joint between the boarding plate 110 and the scissor jack 130 can be improved by providing the second hinge 112 on the lower surface of the second end of the boarding plate 110 and providing the second support 1341 protruding from the top of the scissor jack 130 to hinge with the second hinge 112.

The structure and connection manner of the second hinge portion 112 and the second support portion 1341 can refer to the structure and connection manner of the first hinge portion 111 and the first support portion 121, which are not described herein again.

In some embodiments, as shown in fig. 2 and 5, a third supporting portion 122 is protruded from an upper surface of the fourth end of the connecting plate 120, a third hinge portion 1311 is fixed to a bottom of the scissor jack 130, and a third hinge shaft 142 passes through the third hinge portion 1311 and the third supporting portion 122, so that the bottom of the scissor jack 130 is hinged to the fourth end of the connecting plate 120. The connecting plate 120 is hinged to the bottom of the scissor jack 130 through the third support portion 122 and the third hinge portion 1311, so that the strength of the hinge portion between the connecting plate 120 and the scissor jack 130 can be improved.

The structure and connection manner of the third hinge 1311 and the third support 122 can refer to the structure and connection manner of the first hinge 111 and the first support 121, and are not described herein again.

In some embodiments, the first hinge shaft 140, the second hinge shaft 141, and the third hinge shaft 142 are axially identical. Therefore, the scissor jack 130 can more smoothly drive the boarding plate 110 to rotate relative to the connecting plate 120, and the problem that the scissor jack 130, the connecting plate 120 and the boarding plate 110 are stuck is not easy to occur.

In some embodiments, the number of the scissor jacks 130 is plural, and the plurality of scissor jacks 130 are sequentially distributed along the axial direction of the first hinge shaft 140. Therefore, the supporting force of the scissor jack 130 acting on the boarding plate 110 is distributed more uniformly, and when the forklift moves onto the boarding plate 110, the problem that the side edge of the boarding plate 110 is inclined due to nonuniform stress is solved.

Specifically, as shown in fig. 1 and 2, the number of the scissor jacks 130 is two, and the two scissor jacks 130 are distributed on both sides of the boarding plate 110 in the axial direction of the first hinge shaft 140 to support the boarding plate 110 in both axial sides of the first hinge shaft 140. The number of the connecting plates 120 is also two, the third ends of the two connecting plates 120 are respectively hinged to the first ends of the boarding plates 110, and the second ends of the two connecting plates 120 are respectively hinged to the bottoms of the two scissor jacks 130. Of course, the connecting plate 120 may be a unitary structure, and two scissor jacks 130 may be supported on the same connecting plate 120.

In some embodiments, as shown in fig. 1 and 2, the scissor jack 130 includes a base 131, two first support rods 132 hinged to the base 131, a third hinge 1311 fixedly installed on a lower surface of the base 131, two ends of the first support rods 132 away from the base 131 respectively hinged to the second support rods 133, one ends of the second support rods 133 away from the first support rods 132 respectively hinged to a top seat 134, and a second support portion 1341 fixedly installed on a top surface of the top seat 134.

A screw rod seat 135 is hinged to one end, far away from the base 131, of a first supporting rod 132 of the scissor jack 130, and a threaded hole is formed in the screw rod seat 135; the other end of the first supporting rod 132 of the scissor jack 130, which is far away from the base 131, is hinged with a mounting seat 137, a mounting hole (not shown in the figure) for mounting the lead screw 136 is formed in the mounting seat 137, the lead screw 136 penetrates through a threaded hole of the lead screw seat 135 and is in threaded connection with the lead screw seat 135, the lead screw 136 penetrates through the mounting hole of the mounting seat 137 and is rotatably connected with the mounting seat 137, and the mounting seat 137 can limit the axial movement of the lead screw 136 along the lead screw 136.

The mounting base 137 is further provided with a motor 138, and a rotating shaft of the motor 138 is connected with the lead screw 136 through a gear set to drive the lead screw 136 to rotate, so that the lead screw base 135 moves along the axial direction of the lead screw 136, and further drives the two first supporting rods 132 and the two second supporting rods 133 to rotate, so as to realize the ascending or descending of the scissor jack 130.

In some embodiments, the axial direction of the lead screw 136 may be aligned with the axial direction of the first hinge shaft 140, and thus, when the scissor jack 130 is lowered to a lower height, the first and second support rods 132 and 133 of the scissor jack 130 do not protrude toward the first end of the boarding plate 110 but interfere with the lowered boarding plate 110, and thus, an angle formed by the boarding plate 110 and the connection plate 120 can be further made smaller, that is, a height of the second end of the boarding plate 110 can be made lower.

In some embodiments, the motors 138 of the scissor jacks 130 may be connected to the same controller to achieve synchronous control of the scissor jacks 130, so that the scissor jacks 130 can be lifted synchronously, and the problem that the boarding plate 110 is tilted to the side due to too fast or too slow lifting of one scissor jack 130 can be avoided.

Specifically, as shown in fig. 3, a control module 150 is disposed at the bottom of the boarding plate 110, and the motors 138 of the scissor jacks 130 are electrically connected to the control module 150, respectively, so as to implement synchronous control of the motors 138.

The control module 150 is disposed near the second end of the boarding plate 110, so as to prevent the control module 150 from contacting the connection plate 120 or the ground during the downward rotation of the boarding plate 110.

In some embodiments, the upper surface of the connection plate 120 is convexly provided with a hook structure 123. Therefore, the forklift or other conveying devices can convey the boarding device 100 through the hook, and the conveying of the boarding device 100 is more convenient.

Specifically, as shown in fig. 3, the number of the connecting plates 120 is two, two hook structures 123 are provided on each connecting plate 120, and a hanging hole 1231 for inserting a front fork of a forklift is provided on each hook structure 123. The hook structures 123 on the two connecting plates 120 are arranged opposite to each other in the arrangement direction of the two connecting plates 120, so that the hook structures 123 on the two connecting plates 120 can be hung on the front fork of the forklift simultaneously.

In some embodiments, as shown in fig. 4, a first rib 113 is protruded on the lower surface of the boarding plate 110, and the first rib 113 extends along a direction from the first end to the second end of the boarding plate 110, so as to improve the strength of the boarding plate 110 and prevent the boarding plate 110 from being deformed downward by the gravity of a transport vehicle such as a forklift.

The number of the first reinforcing ribs 113 is plural, and the plural first reinforcing ribs 113 are sequentially distributed along the axial direction of the first hinge shaft 140, so as to further improve the strength of the boarding plate 110.

In some embodiments, as shown in fig. 1 and 4, the boarding device 100 further includes a tongue plate 160, and one side of the tongue plate 160 is hinged to the side of the first end of the boarding plate 110. It can be understood that, because the height of the first end of the boarding plate 110 changes during the rotation of the boarding plate 110 in the up-down direction, when the boarding plate 110 rotates downward to a smaller angle, the height of the first end of the boarding plate 110 is higher, at this time, the tongue plate 160 hinged to the side edge of the first end of the boarding plate 110 rotates downward to a position where the first end abuts against the ground under the action of its own gravity, so that a transition effect is achieved between the first end of the boarding plate 110 and the ground, and the forklift can smoothly move from the ground to the boarding plate 110.

Specifically, the boarding device 100 includes a first hinge 161, and the first hinge 161 includes two mutually hinged blades, wherein one blade of the first hinge 161 is fixedly connected to the lower surface of the first end of the boarding plate 110, and the other blade is fixedly connected to the lower surface of the tongue plate 160, so that one side edge of the tongue plate 160 is hinged to the side edge of the first end of the boarding plate 110.

The number of the first hinges 161 is plural, and the plural first hinges 161 are sequentially distributed along the extending direction of the side edge of the first end of the boarding plate 110, so as to improve the connection strength between the tongue plate 160 and the boarding plate 110.

In some embodiments, the boarding device 100 includes a strap 170, and one side of the strap 170 is hinged to a side of the second end of the boarding plate 110. It can be understood that, after the tail of the truck carriage is parked close to the platform, a certain gap may exist between the truck carriage and the platform, at this time, the access board 170 rotates downwards under the action of self gravity, so that the access board 170 extends into the truck carriage, and the free end of the access board 170 abuts against the bottom surface of the truck carriage, thereby playing a transition role between the boarding board 110 and the truck carriage, and enabling the forklift to smoothly move from the boarding board 110 to the truck carriage.

Specifically, the boarding device 100 includes a second hinge 171, and the second hinge 171 includes two mutually hinged blades, wherein one blade of the second hinge 171 is fixedly connected to the lower surface of the second end of the boarding plate 110, and the other blade is fixedly connected to the lower surface of the access plate 170, so that one side edge of the access plate 170 is hinged to the side edge of the second end of the boarding plate 110.

The number of the second hinges 171 is plural, and the plural second hinges 171 are sequentially distributed along the extending direction of the side edge of the second end of the boarding plate 110, so as to improve the connection strength between the access plate 170 and the boarding plate 110.

In some embodiments, as shown in fig. 1, a second reinforcing rib 172 is further disposed on the lower surface of the access panel 170, and the second reinforcing rib 172 extends in a direction away from the boarding plate 110 along the access panel 170 to improve the strength of the access panel 170 and prevent the access panel 170 from bending and deforming downward under the action of the gravity of the forklift.

The number of the second reinforcing ribs 172 is plural, and the plural second reinforcing ribs 172 are sequentially distributed along the axial direction of the first hinge shaft 140, so as to further improve the strength of the strap 170.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.

In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.

The embodiment of the present invention provides a boarding device, and the principle and implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be some changes in the specific implementation and application scope, and to sum up, the content of the present specification should not be understood as a limitation to the present invention.

Claims (10)

1. An apparatus for boarding, characterized by comprising:

a boarding plate having opposing first and second ends;

the connecting plate is positioned below the boarding plate and provided with a third end and a fourth end which are opposite, and the first end of the boarding plate is hinged with the third end of the connecting plate through a first hinge shaft;

the top of the scissor jack is hinged to the second end of the boarding plate through a second hinge shaft, and the bottom of the scissor jack is hinged to the fourth end of the connecting plate through a third hinge shaft.

2. The boarding device according to claim 1, wherein a first hinge portion is protrudingly provided on a lower surface of the first end of the boarding plate, and a first support portion is protrudingly provided on an upper surface of the third end of the connecting plate, the first hinge shaft passing through the first hinge portion and the first support portion to hinge the first end of the boarding plate with the third end of the connecting plate.

3. The boarding apparatus of claim 1, wherein a second hinge portion is protruded at a lower surface of the second end of the boarding plate, and a second support portion is protruded at a top portion of the scissor jack, and the second hinge shaft passes through the second hinge portion and the second support portion to hinge the top portion of the scissor jack with the second end of the boarding plate.

4. The boarding device of claim 1, wherein a third support portion is protruded from an upper surface of the fourth end of the connecting plate, a third hinge portion is fixed to a bottom of the scissor jack, and the third hinge shaft penetrates through the third hinge portion and the third support portion so that the bottom of the scissor jack is hinged to the fourth end of the connecting plate.

5. The boarding device of claim 1, wherein the first hinge shaft, the second hinge shaft, and the third hinge shaft are axially coincident.

6. The boarding device according to claim 1, wherein the number of the scissor jacks is plural, and the plurality of scissor jacks are sequentially distributed in an axial direction of the first articulated shaft.

7. The boarding device of claim 1, wherein a hook structure is convexly provided on an upper surface of the connection plate.

8. The boarding device according to any one of claims 1 to 7, wherein a lower surface of the boarding plate is convexly provided with a reinforcing rib extending in a direction from a first end to a second end of the boarding plate.

9. The boarding device of any one of claims 1-7, comprising a tongue plate having one side edge hinged to a side edge of the first end of the boarding plate.

10. The boarding device of any one of claims 1 to 7, comprising a butt strap having one side edge hinged to a side edge of the second end of the boarding plate.

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