Movable foot board

Abstract

The utility model relates to a movable foot board. The movable foot board comprises a vehicle body, fixed supporting legs and telescopic wheels. The vehicle body comprises a supporting face located at the top end. The fixed supporting legs are connected to the bottom of the vehicle body and protrude out of the vehicle body. The telescopic wheel comprises a wheel body and an elastic part, the wheel body protrudes out of the vehicle body and can be connected to the vehicle body in an up-down moving mode, the moving path of the wheel body comprises at least one position which protrudes out of the vehicle body farther than the fixed supporting leg, and the elastic part is arranged between the vehicle body and the wheel body and has the trend of driving the wheel body to be away from the vehicle body. And the elastic piece is configured to be that the shortened length of the elastic piece is greater than or equal to the maximum height difference between the telescopic wheel and the fixed supporting leg when the weight borne by the movable foot board exceeds the set weight. According to the scheme, the movable state facilitating push-pull movement and the fixed state facilitating fixed arrangement are automatically switched through the mass of the borne objects, the machining and manufacturing cost is low, no electrified structure exists, and taking and placing are convenient.

Description

Technical Field

[0001] This application relates to the field of production auxiliary tools technology, and in particular to mobile platforms. Background Technology

[0002] In assembly line production, there is an unavoidable need for high-altitude operations. For example, in automobile manufacturing, high-altitude operations such as assembling roof racks, shark fin antennas, and tailgate spoilers on the final assembly interior line are difficult to perform because the parts are high and heavy. Workers standing on the ground cannot reach the roof of the car. Tools such as fixed platforms and ladders are used to help workers safely reach higher positions to increase their working height.

[0003] However, since the production line is constantly moving to continue production, the position of the fixed platform is relatively fixed. When a product is assembled and continues to flow in the production line, the production line moves relative to the workers standing on the fixed platform, which leads to the safety risk of workers bumping and falling. Ladder operations require additional auxiliary personnel to assist in assembly, which results in personnel waste and failure to meet production rhythm. Utility Model Content

[0004] Therefore, it is necessary to provide a movable platform to address the safety risks or personnel waste associated with high-position auxiliary tools in existing assembly line production processes.

[0005] A movable step platform includes a frame, fixed legs, and telescopic wheels. The frame includes a support surface at its top. The fixed legs are connected to the bottom of the frame and protrude from it. The telescopic wheels include a wheel body and an elastic element. The wheel body protrudes from the frame and is vertically movably connected to it, with at least one position on its movement path that protrudes further from the fixed legs than from the frame. The elastic element is disposed between the frame and the wheel body and has a tendency to move the wheel body away from the frame. The elastic element is configured such that when the movable step platform bears a load exceeding a set weight, its shortened length is greater than or equal to the maximum height difference between the telescopic wheels and the fixed legs.

[0006] In one embodiment, the telescopic wheel is configured to move between an extended position and a retracted position, and the elastic element has a tendency to move the telescopic wheel to the extended position. When the telescopic wheel is in the extended position, the height of the telescopic wheel protruding from the vehicle body is greater than the height of the fixed support leg protruding from the vehicle body. When the telescopic wheel is retracted to the retracted position, the height of the telescopic wheel protruding from the vehicle body is not greater than the height of the fixed support leg protruding from the vehicle body.

[0007] In one embodiment, the movable step further includes an armrest assembly connected to the vehicle body, and the armrest assembly includes a handle portion that protrudes from the vehicle body and has a cylindrical structure.

[0008] In one embodiment, the armrest assembly further includes a connecting portion, one end of which is connected to the vehicle body and the other end of which is connected to the handle portion, and the connection between the connecting portion and the handle portion is smoothly transitioned.

[0009] In one embodiment, the handle portion is horizontally positioned relative to the support surface.

[0010] In one embodiment, there are two connecting parts, which are respectively disposed at both ends of the handle in the axial direction.

[0011] In one embodiment, the vehicle body includes a frame and a platform, the fixed outriggers and the telescopic wheels are both connected to the frame, the platform is located on top of the frame, and the supporting surface is the end face of the platform facing away from the frame.

[0012] In one embodiment, the fixed support leg includes a main body and a pad, the main body being an integral structure with the frame, and the pad being connected to the end of the main body away from the vehicle body.

[0013] In one embodiment, the pad is made of resin material.

[0014] In one embodiment, the telescopic wheel further includes a telescopic rod, which includes a fixed part and a sliding part. The fixed part is fixedly connected to the vehicle body, and the fixed part has a guide hole inside. One end of the sliding part is connected to the wheel body, and the other end slides through the guide hole. The two ends of the elastic member abut against the fixed part and the sliding part respectively, so as to have a tendency to drive the wheel body away from the vehicle body.

[0015] The movable platform provided in the above solution, by setting telescopic wheels that can extend and retract relative to the vehicle body, combined with fixed support legs, enables the platform to be fixed relative to the ground when carrying items or workers exceeding a set weight. Specifically, when the weight of the items or workers overcomes the elastic force of the elastic components within the telescopic wheels and causes the elastic components to shorten, the telescopic wheels automatically extend and retract, allowing the fixed support legs to support the vehicle body. Conversely, when the platform is not carrying any items or carries a light load, the telescopic wheels automatically extend under the action of the elastic components, supporting the vehicle body. In this case, a small force is applied to the entire movable platform to cause it to slide relative to the ground. This allows the platform to automatically switch between a mobile, easily movable state and a fixed, fixed state based on the weight of the load. It has low manufacturing costs, is lightweight and convenient to use, has no electrical structure, and is easy to handle and place. It can increase the working height, improve quality, enhance safety, and reduce the intensity of personnel work, meeting the requirements of safe and efficient production on automotive assembly lines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the movable platform in one embodiment of this application.

[0017] Figure 2 for Figure 1 Front view of the central treadmill.

[0018] Figure 3 for Figure 1 Side view of the movable platform.

[0019] Figure 4 for Figure 1 A top view of the central movable platform.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Movable platform; 110. Vehicle body; 111. Support surface; 112. Frame; 113. Platform; 120. Fixed support leg; 121. Main body; 122. Pad; 130. Telescopic wheel; 131. Wheel body; 132. Telescopic rod; 1321. Fixed part; 1322. Sliding part; 140. Handrail assembly; 141. Handle part; 142. Connecting part. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0028] See Figure 1 , Figure 1 The diagram shows a structural schematic of a movable step 100 in one embodiment of this application. The movable step 100 provided in one embodiment of this application is used as a support to raise the height of workers or objects. It can be applied to high-level operations, such as assembling luggage racks, shark fin antennas, and rear door spoilers on the interior assembly line in automobile manufacturing. It can also be applied to other scenarios, which are not limited thereto.

[0029] like Figure 1 As shown, the movable platform 100 includes a body 110, fixed support legs 120, and telescopic wheels 130. The body 110 includes a support surface 111 at the top, which is used to support workers or objects to raise the height of the objects or workers.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment, the vehicle body 110 includes a frame 112 and a platform 113. Fixed support legs 120 and telescopic wheels 130 are both connected to the frame 112, and the platform 113 is located on top of the frame 112, with the support surface 111 being the end face of the platform 113 facing away from the frame 112. The platform 113 and frame 112 need to be made of high-strength materials to prevent deformation of the platform 113 under stress. In this embodiment, the platform 113 is a steel plate to provide sufficient strength to support objects or workers located on the support surface 111. In this embodiment, the frame 112 is an aluminum profile to reduce the weight of the movable platform 100.

[0031] Combination Figure 2 and Figure 3 As shown, Figure 2 and Figure 3 The side views of the movable step 100 in different directions are shown in one embodiment of this application. The fixed support leg 120 is connected to the bottom of the vehicle body 110 and protrudes from the vehicle body 110.

[0032] like Figure 1 and Figure 2As shown, in one embodiment, the fixed support leg 120 includes a main body 121 and a pad 122. The main body 121 and the frame 112 are integral structures, and the pad 122 is connected to the end of the main body 121 away from the vehicle body 110, so as to avoid the main body 121, which has a high hardness, from damaging the ground or making excessive friction noise when it comes into contact with the ground.

[0033] In one embodiment, the pad 122 is made of resin material. In this embodiment, the pad 122 is a polyurethane pad 122, but this is not a limitation.

[0034] In some embodiments, the end of the main body 121 away from the frame 112 is recessed with an embedding groove, and the pad 122 is partially embedded in the embedding groove and threadedly connected to the embedding groove. In other embodiments, the pad 122 may also be connected to the end face of the main body 121 away from the frame 112 by means of adhesive bonding or other connection methods.

[0035] like Figure 2 and Figure 3 As shown, the telescopic wheel 130 includes a wheel body 131 and an elastic element (not shown). The wheel body 131 protrudes from the vehicle body 110 and is movably connected to the vehicle body 110. Along its movement path, the wheel body 131 has at least one position that protrudes further from the vehicle body 110 than the fixed support leg 120. When the wheel body 131 is in this position, it supports the vehicle body 110 and facilitates its sliding on the ground. In this embodiment, the wheel body 131 is a swivel wheel.

[0036] The elastic element is positioned between the vehicle body 110 and the wheel 131 and has a tendency to drive the wheel 131 away from the vehicle body 110, and such as Figure 2 and Figure 3 As shown, the elastic element is configured such that when the load on the movable platform 100 exceeds a set weight, the shortened length H is greater than or equal to the maximum height difference h between the telescopic wheel 130 and the fixed support leg 120. It is understood that the "set weight" can be set by the mass of the worker or object supported by the movable platform 100 when it needs to be fixed, and this can be achieved by replacing the elastic element with one of different elasticity.

[0037] The telescopic wheel 130 and the fixed outrigger 120 are used to support the vehicle body 110. When the movable platform 100 is not carrying any items or carries a light load, with the horizontal ground as a reference, the telescopic wheel 130 automatically extends under the action of the elastic element. When the height of the telescopic wheel 130 is lower than the height of the fixed support leg 120, the fixed support leg 120 is not in contact with the ground. At this time, the telescopic wheel 130 supports the vehicle body 110. A small force is applied to the movable platform 100 as a whole to make it slide relative to the ground. When the movable platform 100 carries items or workers exceeding the set weight, that is, when the weight of the items or workers overcomes the elastic force of the elastic element in the telescopic wheel 130 and causes the elastic element to shorten, the telescopic wheel 130 automatically extends and retracts. The height of the telescopic wheel 130 is not higher than the fixed support leg 120, and the fixed support leg 120 is in contact with the ground. At this time, the fixed support leg 120 supports the vehicle body 110. Due to the large friction between the fixed support leg 120 and the ground, the movable platform 100 is difficult to slide relative to the ground and remains fixed relative to the ground.

[0038] In practical applications, taking the movable platform 100 as an example of high-level operations in automobile manufacturing, especially the assembly of luggage racks on the interior assembly line, when installing the luggage rack, the movable platform 100 is pushed to the side of the vehicle body. Workers take materials and stand on the movable platform 100. The workers' own weight causes the elastic element of the movable platform 100 to shorten, so that the movable platform 100 is supported by the fixed support leg 120, thus locking the movable platform 100 relative to the production line and allowing personnel to carry out normal operations. After the operation is completed, the personnel leave the movable platform 100, and the telescopic wheel 130 extends under the action of the elastic element to form the movable platform 100. At this time, the fixed support leg 120 is raised and does not contact the ground, allowing the movable platform 100 to be freely pushed to the next vehicle for continuous operation.

[0039] In one embodiment, the telescopic wheel 130 is configured to move between an extended position and a retracted position, and the elastic element has a tendency to move the telescopic wheel 130 to the extended position, such as... Figure 2 and Figure 3 As shown, when the telescopic wheel 130 is in the extended position, the height of the telescopic wheel 130 protruding from the vehicle body 110 is greater than the height of the fixed support leg 120 protruding from the vehicle body 110. At this time, the fixed support leg 120 is not in contact with the ground, and the telescopic wheel 130 supports the vehicle body 110. A small force applied to the movable platform 100 is sufficient to make the movable platform 100 slide relative to the ground. When the movable platform 100 bears a load exceeding the set weight, the telescopic wheel 130 is in the retracted position. The height of the telescopic wheel 130 protruding from the vehicle body 110 is no greater than the height of the fixed support leg 120 protruding from the vehicle body 110. At this time, the fixed support leg 120 is in contact with the ground and supports the vehicle body 110. Due to the greater friction between the fixed support leg 120 and the ground, the movable platform 100 is difficult to slide relative to the ground and remains fixed relative to the ground.

[0040] like Figures 1 to 4 As shown, in one embodiment, the movable platform 100 further includes a handrail assembly 140, which is connected to the vehicle body 110 and includes a handle portion 141. The handle portion 141 protrudes from the vehicle body 110 and has a columnar structure to facilitate gripping, thereby facilitating workers to apply force to the movable platform 100 as a whole through the handle portion 141 and drive the movable platform 100 to move as a whole.

[0041] like Figure 1 and Figure 3 As shown, in one embodiment, the armrest assembly 140 further includes a connecting portion 142, one end of which is connected to the vehicle body 110 and the other end is connected to the handle portion 141. The connection between the connecting portion 142 and the handle portion 141 is smoothly transitioned so that when the handle portion 141 is subjected to force, the vehicle body 110 moves in the direction of the force applied to the handle portion 141.

[0042] like Figure 3 As shown, in one embodiment, the handle portion 141 is horizontally arranged with the support surface 111, so that the handle portion 141 can apply force to the movable step 100 as a whole and drive the movable step 100 as a whole to move. In other embodiments, the axial direction of the handle portion 141 can also be arranged perpendicular to the support surface 111, in which case the handle portion 141 can also apply force to the movable step 100 as a whole and drive the movable step 100 as a whole to move.

[0043] like Figure 1 and Figure 3 As shown, in one embodiment, there are two connecting parts 142, which are respectively disposed at both ends of the handle part 141 in the axial direction, so as to make the connection of the handle part 141 more reliable and avoid deformation of the handle part 141 when the entire movable platform 100 is pushed or pulled by the handle part 141.

[0044] like Figure 1 and Figure 3 As shown, in one embodiment, the telescopic wheel 130 further includes a telescopic rod 132. The telescopic rod 132 includes a fixed part 1321 and a sliding part 1322. The fixed part 1321 is fixedly connected to the vehicle body 110, and a guide hole is provided inside the fixed part 1321. One end of the sliding part 1322 is connected to the wheel body 131, and the other end slides through the guide hole. Both ends of the elastic element abut against the fixed part 1321 and the sliding part 1322 respectively, so as to have a tendency to drive the wheel body 131 away from the vehicle body 110. In this embodiment, the telescopic rod 132 is an elastic cylindrical pin.

[0045] The movable platform 100 provided in this application, by setting telescopic wheels 130 that can extend and retract relative to the vehicle body 110, combined with fixed support legs 120, enables the movable platform 100 to be fixed relative to the ground when it carries items or workers exceeding a set weight. Specifically, when the weight of the items or workers overcomes the elastic force of the elastic element within the telescopic wheels 130 and causes the elastic element to shorten, the telescopic wheels 130 automatically extend and retract, causing the fixed support legs 120 to support the vehicle body 110. Conversely, when the movable platform 100 is not carrying any items or carries a light load, the telescopic wheels 130... The elastic element automatically extends under the action of the elastic element, so that the telescopic wheel 130 supports the body 110. At this time, a small force is applied to the movable platform 100 to drive the movable platform 100 to slide relative to the ground. Thus, the movable platform 100 can automatically switch between an active state that is easy to push and pull and a fixed state that is fixed by the weight of the load. It has low processing and manufacturing costs, is lightweight and convenient to use, has no electrical structure, and is easy to pick up and place. It can improve the working height, improve quality, improve safety, reduce the labor intensity of personnel, and meet the requirements of safe and efficient production on the automobile assembly line.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A movable step platform, characterized in that, The movable platform includes: The vehicle body, including the supporting surface at the top; Fixed outriggers are attached to the bottom of the vehicle body and protrude from the vehicle body. A telescopic wheel includes a wheel body and an elastic element. The wheel body protrudes from the vehicle body and is vertically movably connected to the vehicle body. The wheel body has at least one position on its movement path that protrudes further from the vehicle body than the fixed support leg. The elastic element is disposed between the vehicle body and the wheel body and has a tendency to move the wheel body away from the vehicle body. The elastic element is configured such that when the movable step bears a load exceeding a set weight, its shortened length is greater than or equal to the maximum height difference between the telescopic wheel and the fixed support leg.

2. The movable platform according to claim 1, characterized in that, The telescopic wheel is configured to move between an extended position and a retracted position, and the elastic element has a tendency to move the telescopic wheel to the extended position. When the telescopic wheel is in the extended position, the height of the telescopic wheel protruding from the vehicle body is greater than the height of the fixed support leg protruding from the vehicle body. When the telescopic wheel is retracted to the retracted position, the height of the telescopic wheel protruding from the vehicle body is not greater than the height of the fixed support leg protruding from the vehicle body.

3. The movable platform according to claim 1, characterized in that, The movable platform also includes an armrest assembly connected to the vehicle body, and the armrest assembly includes a handle portion that protrudes from the vehicle body and has a cylindrical structure.

4. The movable platform according to claim 3, characterized in that, The armrest assembly also includes a connecting part, one end of which is connected to the vehicle body and the other end is connected to the handle part, and the connection between the connecting part and the handle part is smoothly transitioned.

5. The movable platform according to claim 4, characterized in that, The handle is horizontally positioned relative to the support surface.

6. The movable platform according to claim 5, characterized in that, There are two connecting parts, which are respectively located at both ends of the handle in the axial direction.

7. The movable platform according to claim 1, characterized in that, The vehicle body includes a frame and a platform. The fixed support legs and the telescopic wheels are both connected to the frame, and the platform is located on top of the frame. The supporting surface is the end face of the platform that faces away from the frame.

8. The movable platform according to claim 7, characterized in that, The fixed support leg includes a main body and a pad. The main body and the frame are an integral structure, and the pad is connected to the end of the main body away from the vehicle body.

9. The movable platform according to claim 8, characterized in that, The pad is made of resin material.

10. The movable platform according to claim 1, characterized in that, The telescopic wheel also includes a telescopic rod, which includes a fixed part and a sliding part. The fixed part is fixedly connected to the vehicle body, and the fixed part has a guide hole inside. One end of the sliding part is connected to the wheel body, and the other end slides through the guide hole. The two ends of the elastic member abut against the fixed part and the sliding part respectively, so as to have a tendency to drive the wheel body away from the vehicle body.

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