CN211234979U

CN211234979U - Folding expansion platform

Info

Publication number: CN211234979U
Application number: CN201922274879.XU
Authority: CN
Inventors: 张志勇; 冯浩; 赵明辉; 张泽枫
Original assignee: Academy Of Forensic Science
Current assignee: Academy Of Forensic Science
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-11
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a foldable extension platform. This foldable extension platform is applicable to electronic small vehicle test, extension platform includes at least first flat board frame, second flat board frame and third flat board frame, all be rectangle hollow structure, the three is arranged along length direction, and one side of second flat board frame is passed through the hinge and is articulated with one side of first flat board frame, the opposite side of second flat board frame is passed through the hinge and is articulated with one side of third flat board frame, first flat board frame and third flat board frame can overturn to the second flat board frame respectively, so that first flat board frame and third flat board frame enable the three to expand in same horizontal plane to the upset outside relatively second flat board frame, and the top of first flat board frame is laminated with the top of second flat board frame after inwards overturning, the bottom of third flat board frame is laminated with the bottom of second flat board frame. The utility model provides a foldable extension platform conveniently expandes and folding accomodating.

Description

Folding expansion platform

Technical Field

The utility model relates to a test technical field of motor vehicle especially relates to a foldable extension platform, is applicable to the test to electronic small-size car.

Background

With the improvement of the social and economic living standard, the air pollution of the large cities cannot be ignored, the automobile emission is one of the main pollution sources, and 10 cities in China are listed in 20 cities with the most serious global air pollution. The average number of automobiles per 1000 people in China is 10, but because of insufficient petroleum resources, millions of tons of petroleum are imported each year, and with the development of economy, if the quantity of automobiles per 1000 people in China reaches the global level, namely 110 automobiles per 1000 people, the quantity of automobiles in China is increased by 10 times, and the petroleum import becomes a big problem.

Therefore, the research and development of the electric small-sized vehicle in China is not a temporary short-term measure, but a significant and long-term strategic consideration. With the widespread use of small electric vehicles, higher demands have been made on special tools for detection. At present, a test platform suitable for the electric small-sized vehicle is lacked.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem of prior art, the utility model provides a foldable extension platform is applicable to electric small vehicle's test, is convenient for fold and expand, and occupation space is few.

Specifically, the utility model provides a foldable extension platform, include:

the first flat plate frame, the second flat plate frame and the third flat plate frame are all rectangular hollow structures and are arranged along the length direction, one side of the second flat plate frame is hinged with one side of the first flat plate frame through a hinge, the other side of the second flat plate frame is hinged with one side of the third flat plate frame through a hinge, the first flat plate frame and the third flat plate frame can be respectively turned over towards the second flat plate frame, so that the first flat plate frame and the third flat plate frame can be unfolded in the same horizontal plane through outward turning of the first flat plate frame and the second flat plate frame, the top of the first flat plate frame is attached to the top of the second flat plate frame after the first flat plate frame and the third flat plate frame are turned inwards, and the bottom of the third flat plate frame is attached to the bottom of the second flat;

the bottom of the first flat plate frame is provided with a first supporting leg which is in running fit with the first flat plate frame, the first supporting leg can be contained in the first flat plate frame when being turned inwards, and the first supporting leg can be fixed at a position which is vertical to the plane where the first flat plate frame is located when being turned outwards;

the bottom of the second flat plate frame is provided with a second supporting leg which is in running fit with the second flat plate frame, the second supporting leg can be contained in the second flat plate frame after being turned inwards, and the second supporting leg can be fixed at a position which is vertical to the plane where the second flat plate frame is located after being turned outwards;

and a third supporting leg which is in running fit with the third flat plate frame is arranged at the bottom of the third flat plate frame, the third supporting leg can be contained in the third flat plate frame by inwards turning, and the third supporting leg can be fixed at a position which is vertical to the plane where the third flat plate frame is located by outwards turning.

According to the utility model discloses an embodiment, extension platform still includes three fixing device, sets up respectively on first flat plate frame, second flat plate frame and the third flat plate frame to be used for fixing respectively first supporting legs, second supporting legs and third supporting legs.

According to the utility model discloses an embodiment, fixing device includes an extension spring, and its one end is fixed in one of first flat board frame, second flat board frame or third flat board frame, the other end is fixed corresponding on first supporting legs, second supporting legs or the third supporting legs.

According to the utility model discloses an embodiment, extension spring's the other end is equipped with the drag hook, extension spring passes through the drag hook is fixed and is corresponded on first supporting legs, second supporting legs or the third supporting legs.

According to the utility model discloses an embodiment, be equipped with the strengthening rib on first flat plate frame, second flat plate frame and the third flat plate frame, the length direction of strengthening rib with extension platform's length direction is perpendicular.

According to the utility model discloses an embodiment, the big or small structure of first flat plate frame, second flat plate frame and third flat plate frame is identical, the big or small structure of first supporting legs, second supporting legs and third supporting legs is identical.

According to the utility model discloses an embodiment first dull and stereotyped frame, second dull and stereotyped frame and third flat board frame are last fixedly provided with the antiskid bed board respectively.

According to an embodiment of the utility model, the antiskid bed plate adopts aluminium alloy material to make.

According to the utility model discloses an embodiment, first supporting legs, second supporting legs or third supporting legs are equallyd divide respectively through the pivot with correspond first flat slab frame, second flat slab frame or third flat slab frame normal running fit.

The utility model provides a pair of foldable extension platform is applicable to electric small vehicle's test, is convenient for fold and expand, and occupation space is few.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows a schematic structural diagram of an extension platform according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view along AA of fig. 1.

Fig. 3 shows a usage state diagram of the extension platform according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

expansion platform 100 first platform frame 101

Second plate frame 102 third plate frame 103

Hinge 104 first support leg 105

Second leg 106 third leg 107

Extension spring 108 pulls hook 109

Reinforcing rib 110 anti-skid plank 111

Rotating shaft 112

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Fig. 1 shows a schematic structural diagram of an extension platform according to an embodiment of the present invention. Fig. 2 is a cross-sectional view along AA of fig. 1. Fig. 3 shows a usage state diagram of the extension platform according to an embodiment of the present invention. As shown, a folding expansion platform 100 suitable for use in electric small vehicle testing. The expansion platform 100 includes at least a first plate frame 101, a second plate frame 102, and a third plate frame 103. The first plate frame 101, the second plate frame 102 and the third plate frame 103 are rectangular hollow structures, and are arranged along the length direction. The second plate frame 102 is located between the first plate frame 101 and the third plate frame 103. One side of the second flat plate frame 102 is hinged to one side of the first flat plate frame 101 by a hinge 104, and the other side of the second flat plate frame 102 is also hinged to one side of the third flat plate frame 103 by a hinge 104.

The first and third

flat frames

101 and 103 can be respectively turned over toward the second flat frame 102 by the hinges 104, so that the first, second and third

flat frames

101, 102 and 103 can be switched between the unfolded state and the folded state. In the unfolded state, the first and third

flat plates

101 and 103 are turned outward with respect to the second flat plate 102 so that they can be unfolded in the same horizontal plane. In the folded state, the first and third

flat plates

101 and 103 are turned inward relative to the second flat plate 102 so that the top of the first flat plate 101 is attached to the top of the second flat plate 102, and the bottom of the third flat plate 103 is attached to the bottom of the second flat plate 102. It is easy to understand that the folding state of the expanding platform 100 is equivalent to the folding state of the first plate frame 101, the second plate frame 102 and the third plate frame 103 in a zigzag manner.

Further, a first supporting leg 105 rotatably engaged with the first flat plate frame 101 is provided at the bottom of the first flat plate frame 101. The first support leg 105 is switchable between an operating state and a storage state. In the unfolded state of the expansion platform 100, the first supporting leg 105 can be turned inwards, i.e. rotated towards the bottom surface of the first platform frame 101, so that the first supporting leg 105 is rotated into the first platform frame 101, which is equivalent to being accommodated in the first platform frame 101, thereby forming a storage state of the first supporting leg 105. Conversely, the first supporting leg 105 can be fixed at a position perpendicular to the plane of the first flat rack 101 after being turned outwards, so as to support the first flat rack 101 and enter the working state.

Similarly, a second supporting foot 106 is provided at the bottom of the second plate frame 102, and is rotatably engaged with the second plate frame 102. Like the first support leg 105, the second support leg 106 is switchable between an operating state and a stored state. In the unfolded state of the expansion platform 100, the second supporting leg 106 can be turned inwards, i.e. turned towards the bottom surface of the second platform frame 102, so that the second supporting leg 106 is turned into the second platform frame 102, which is equivalent to being taken into the second platform frame 102, thereby forming a storage state of the second supporting leg 106. Conversely, the second support leg 106 can be fixed in a position perpendicular to the plane of the second platform 102 for supporting the second platform 102 into an operative position.

Correspondingly, a third supporting foot 107 rotatably matched with the third plate frame 103 is arranged at the bottom of the third plate frame 103. Like the first supporting leg 105, the third supporting leg 107 can be switched between an operating state and a stored state. In the unfolded state of the expansion platform 100, the third support foot 107 can be turned inward, i.e. turned toward the bottom surface of the third plate frame 103, so that the third support foot 107 is turned into the third plate frame 103, and is equivalently accommodated in the third plate frame 103, thereby forming a storage state of the third support foot 107. Conversely, the third supporting leg 107 can be turned outward and fixed at a position perpendicular to the plane of the third plate frame 103 for supporting the third plate frame 103 to enter the working state.

In actual operation, the first, second and third flat plate frames 101, 102 and 103 are turned to the unfolded state, and the first, second and third supporting

legs

105, 106 and 107 are turned outwards. The first support leg 105, the second support leg 106 and the third support leg 107 are stabilized on the ground such that the first plate frame 101, the second plate frame 102 and the third plate frame 103 are unfolded in the same plane. Before testing, the side of the third flat plate frame 103 not connected to the second flat plate frame 102 is fixed to the testing machine frame, and the first supporting leg 105 is folded inwards to make the side of the first flat plate frame 101 not connected to the second flat plate frame 102 fall on the ground, so that a slope is formed on the surface of the first flat plate frame 101. The electric small vehicle to be tested can run along the slope to the rotating drum on the detection rack along the surfaces of the first flat plate frame 101, the second flat plate frame 102 and the third flat plate frame 103 in sequence. At this time, the first supporting leg 105 can be lifted up to make the front and rear tire connecting lines of the electric small vehicle in a horizontal position, and a corresponding test is performed.

Preferably, docking platform 100 also includes three fixtures. Three fixing means are provided on the first plate frame 101, the second plate frame 102 and the third plate frame 103, respectively. The three fixing devices are used for fixing the first supporting foot 105, the second supporting foot 106 and the third supporting foot 107 respectively. Preferably, the fixing means includes an extension spring 108 having one end fixed to one of the first plate frame 101, the second plate frame 102 or the third plate frame 103 and the other end fixed to the corresponding first supporting leg 105, the second supporting leg 106 or the third supporting leg 107. Specifically, the position at which the tension spring 108 is fixed to each pallet falls outside the tilting stroke of each support foot. Referring to fig. 1, the first support leg 105 is movable within a limited stroke so that it can be switched between an operating state and a storage state. In fig. 2, the first supporting leg 105 is in an operating state, which is perpendicular to the first flat plate frame 101, and since the extension spring 108 is outside the tilting stroke of the first supporting leg 105, which corresponds to an outward pulling force applied to the first supporting leg 105, the first supporting leg 105 is structurally restrained at the vertical position of the first flat plate frame 101, thereby firmly fixing the position of the first supporting leg 105. It will be readily appreciated that the extension spring 108 may also secure the first support leg 105 in the stowed position when the first support leg 105 is flipped inward into the stowed condition. Similarly, the extension springs 108 disposed on the second plate frame 102 and the third plate frame 103 also serve to fix the specific positions of the second supporting foot 106 and the third supporting foot 107 in the working state and the storage state, respectively, so as to facilitate the expansion and storage of the expansion platform 100.

Preferably, the other end of the extension spring 108 is provided with a draw hook 109, and the extension spring 108 is fixed on the corresponding first supporting leg 105, second supporting leg 106 or third supporting leg 107 through the draw hook 109. In this way, the extension spring 108 can be separated from each of the

support legs

105, 106, 107 for easy removal and replacement. Optionally, the draw hook 109 may also be directly fixed on the first supporting leg 105, the second supporting leg 106, or the third supporting leg 107, and the draw hook 109 is hung on the bottom end of the extension spring 108, so as to play a role in fixing.

Preferably, referring to fig. 2, the first plate frame 101, the second plate frame 102 and the third plate frame 103 are provided with reinforcing ribs 110. The length direction of the reinforcing rib 110 is perpendicular to the length direction of the expansion platform 100, so that the overall structure of the expansion platform 100 is more stable, and the accuracy of a test result is ensured.

Preferably, the first plate frame 101, the second plate frame 102 and the third plate frame 103 have the same size and structure. The first supporting leg 105, the second supporting leg 106 and the third supporting leg 107 have the same size and structure, so that the industrial large-scale manufacturing and the assembly are facilitated.

Preferably, antiskid planks 111 are fixedly arranged on the first flat plate frame 101, the second flat plate frame 102 and the third flat plate frame 103 respectively, and are suitable for the electric small vehicle to smoothly run on the expansion platform 100. More preferably, the skid-proof planks 111 are made of aluminum alloy material, lightweight and durable.

Preferably, the first supporting foot 105, the second supporting foot 106 or the third supporting foot 107 are respectively rotatably engaged with the corresponding first plate frame 101, the second plate frame 102 or the third plate frame 103 through the rotating shaft 112. The turning stroke of each

support leg

105, 106, 107 is limited between the storage state and the operating state.

Turning to fig. 2, after the two tests of the electric small vehicle are completed, the first flat plate frame 101, the second flat plate frame 102 and the third flat plate frame 103 are supported, the draw hook 109 is disengaged, and the first supporting leg 105, the second supporting leg 106 and the third supporting leg 107 are turned upwards and rightwards, so that the first supporting leg 105, the second supporting leg 106 and the third supporting leg 107 are recovered into the frame structure of the first flat plate frame 101, the second flat plate frame 102 and the third flat plate frame 103. Then, the first flat plate rack 101 is turned over to the second flat plate rack 102 along the hinge 104 from the top to the right, so that the top of the first flat plate rack 101 is attached to the top of the second flat plate rack 102. Meanwhile, the third plate frame 103 is turned over to the second plate frame 102 along the hinge 104 to the left and downward, so that the bottom of the third plate frame 103 is attached to the bottom of the second plate frame 102. The foldable platform 100 is folded in a zigzag manner for storage and then unfolded for the next use.

The utility model provides a pair of foldable extension platform 100 is applicable to electric small vehicle's test, is convenient for expand the use or folding storage.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. Foldable extension platform is applicable to electronic small vehicle test, its characterized in that, the extension platform includes:

2. The foldable expansion platform of claim 1, further comprising three securing means disposed on the first, second and third plate frames, respectively, for securing the first, second and third support legs, respectively.

3. The foldable extension platform of claim 2, wherein the securing means comprises an extension spring secured at one end to one of the first, second or third platform members and at the other end to the corresponding first, second or third support leg.

4. The foldable extension platform of claim 3, wherein the other end of the extension spring is provided with a hook, and the extension spring is fixed on the corresponding first support leg, second support leg or third support leg through the hook.

5. The folding extension platform of claim 1, wherein the first, second, and third planar members have reinforcing ribs extending lengthwise perpendicular to the extension platform.

6. The folding extension platform of claim 1, wherein the first platform frame, the second platform frame, and the third platform frame are substantially identical in size and configuration, and the first support foot, the second support foot, and the third support foot are substantially identical in size and configuration.

7. The folding extension platform of claim 1, wherein non-slip planks are secured to each of the first, second, and third flat planks.

8. The foldable expansion platform of claim 7, wherein the non-slip decking is made of an aluminum alloy material.

9. The foldable extension platform of claim 1, wherein the first, second, or third support leg is pivotally engaged with the corresponding first, second, or third platform frame via a pivot axis.