A mobile work platform

By linking the lifting drive with the caster arm, and utilizing the lever structure and drive device, the problem of cumbersome operation of casters in existing mobile operating platforms is solved, realizing convenient caster extension and retraction and stable platform support, thus improving the mobility and stability of the operating platform.

CN224931337UActive Publication Date: 2026-11-03ZHONGSHAN BODAFONG POWER EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521753505.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2026-11-03
Estimated Expiration
2035-08-15

AI Technical Summary

Technical Problem

The casters of existing mobile operating platforms require separate extension and retraction operation, which is cumbersome and affects the convenience and stability of operation.

Method used

Multiple caster arms are linked by a lifting drive, and the casters are extended and retracted in unison through a lever structure. Combined with a jack or hydraulic cylinder and other drive devices, the operation process is simplified.

Benefits of technology

It features convenient retractable casters, improving the platform's mobility and stability, and is simple to operate with high safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224931337U_ABST
    Figure CN224931337U_ABST
Patent Text Reader

Abstract

The utility model discloses a mobile operation platform, it includes: platform main part, trundle subassembly and drive arrangement. Trundle subassembly sets up multiple, trundle subassembly includes trolley wheel and trolley arm, and the middle part pivot connection of trolley arm is in the lower part of platform main part to form lever structure, and trolley wheel is connected to one end of trolley arm, and the other end of trolley arm is defined as drive end, and when trolley arm rotates and changes position, trolley wheel can stretch out on the downside of platform main part and go up and be incorporated into platform main part. Drive arrangement includes lifting drive and linkage, and lifting drive is connected with the drive end of each trolley arm through linkage, and lifting drive is used for through linkage and drives the drive end of each trolley arm synchronous rise and fall, to make trolley wheel can stretch out on the downside of platform main part and go up and be incorporated into platform main part. The mobile operation platform of the above, and it is convenient to operate trolley wheel to stretch out and incorporate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to auxiliary tools for construction operations, and in particular to a mobile operating platform. Background Technology

[0002] In some construction operations, such as the maintenance of electrical cabinets, it is often necessary to work at height. This is typically achieved using a work platform. Existing work platforms are usually equipped with multiple casters for easy movement. To ensure safety during operations, the casters are usually adjustable upwards, allowing the platform to rest directly on the ground for stability. However, some existing mobile work platforms require individual, independently extendable casters, which is cumbersome to use. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a mobile operating platform that is easy to operate.

[0004] A mobile operating platform according to an embodiment of the present invention includes: a platform body; multiple caster assemblies, each caster assembly including a caster and a caster arm, the middle portion of which is pivotally connected to the lower part of the platform body to form a lever structure, the caster being connected to one end of the caster arm, and the other end of the caster arm being defined as a drive end, wherein when the caster arm rotates to change position, the caster can extend downwards to the lower side of the platform body and retract upwards into the platform body; and a driving device including a lifting drive and a linkage mechanism, wherein the lifting drive is connected to the drive ends of each caster arm through the linkage mechanism, and the lifting drive is used to drive the drive ends of each caster arm to rise and fall synchronously through the linkage mechanism, so that the caster can extend downwards to the lower side of the platform body and retract upwards into the platform body.

[0005] According to an embodiment of this utility model, a mobile operating platform has at least the following advantages: When the platform body needs to be moved, the driving ends of each caster arm are driven upward by a lifting driver, and the casters at one end of the caster arm can extend downward and lift the platform body by pressing against the ground, thus allowing the platform body to move via the casters; when climbing is required, the driving ends of each caster arm are reset downward by the lifting driver, so that the casters can be retracted into the platform body, and the platform body can be directly supported on the ground, ensuring the stability of the support. The aforementioned mobile operating platform uses a lifting driver to uniformly link the extension and retraction of each caster, and operation is convenient as it only requires operating the lifting driver; the casters achieve lever-like extension and retraction through the caster arm, the lifting structure is simple, easily supports the platform body, and provides stable support during movement.

[0006] According to some embodiments of this utility model, the caster includes two front wheels and two rear wheels, with the two front wheels arranged spaced apart to the left and right, and the two rear wheels arranged spaced apart to the left and right. The linkage mechanism includes a front connecting rod, a front pull rod, a rear connecting rod, and a rear pull rod. The front connecting rod and the rear connecting rod are both arranged in the left-right direction. The driving ends of the two caster arms corresponding to the two front wheels are connected through the front connecting rod, and the driving ends of the two caster arms corresponding to the two rear wheels are connected through the rear connecting rod. The lifting drive has a lifting part for lifting action. One end of the front pull rod is hinged to the lifting part, and the other end is hinged to the front connecting rod. One end of the rear pull rod is hinged to the lifting part, and the other end is hinged to the rear connecting rod. The hinge axes at both ends of the front pull rod and the rear pull rod are both in the left-right direction.

[0007] According to some embodiments of this utility model, the lifting driver is a jack, the jack has a lifting part for lifting action, the jack is connected to a drive rod, the drive rod is used to drive the lifting part of the jack to rise, one end of the drive rod is rotatably set, and the other end is provided with a drive foot pedal, the drive foot pedal extends out of one side of the platform body; the jack is connected to a control rod, one end of the control rod is rotatably set, the control rod controls the lifting part to lock up and down positions and release up and down positions respectively when rotated forward and backward to a predetermined position, the other end of the control rod is provided with a control foot pedal, the control foot pedal extends out of one side of the platform body.

[0008] According to some embodiments of the present invention, the platform body is a staircase structure, the platform body is provided with a main operating staircase, the platform body is provided with an auxiliary step stool, and the auxiliary step stool is located on the rear side of the main operating staircase.

[0009] According to some embodiments of the present invention, the auxiliary step stool can be adjusted in position relative to the platform body in the left-right direction.

[0010] According to some embodiments of this utility model, the auxiliary step stool is slidably disposed on the step behind the main operating step in the left-right direction. The auxiliary step stool is connected to a connecting frame, which extends forward to the front end of the platform body. A locking component is provided at the front end of the connecting frame. The locking component is used to clamp the front and rear sides of the main operating step with the auxiliary step stool. The locking component is detachable or can be removed from the clamping position.

[0011] According to some embodiments of the present invention, the auxiliary step stool is provided with a storage drawer.

[0012] According to some embodiments of the present invention, the main body of the platform is a staircase structure, the main body of the platform is provided with a main operating staircase, and handrails are provided on the left and right sides of the main operating staircase.

[0013] According to some embodiments of this utility model, the handrail frame can be folded down and stored in the platform body.

[0014] According to some embodiments of this utility model, the platform body includes a frame formed by connecting insulating rods, wherein the insulating rods are hollow rods and reinforced rods are inserted through them.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is one of the perspective schematic diagrams of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of an embodiment of the present invention;

[0019] Figure 3 This is a second perspective view of an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of a partial structure of an embodiment of the present utility model;

[0021] Figure 5 for Figure 3 Enlarged diagram of point A.

[0022] Figure label:

[0023] The main platform is 100mm, the main operating ladder is 110mm, the front axle is 120mm, and the rear axle is 130mm.

[0024] Caster assembly 200, caster 210, caster arm 220;

[0025] Drive unit 300, lifting driver 310, linkage mechanism 320, drive rod 330, control rod 340, lifting part 311, front connecting rod 321, front pull rod 322, rear connecting rod 323, rear pull rod 324, drive foot pedal 331, control foot pedal 341.

[0026] 400 auxiliary step stools;

[0027] Connector bracket 500, pin hole 510;

[0028] Locking component 600;

[0029] Handrail frame 700, diagonal support rod 710. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 5A mobile operating platform includes a platform body 100, caster assemblies 200, and a drive device 300. Multiple caster assemblies 200 are provided, each including a caster 210 and a caster arm 220. The middle portion of the caster arm 220 is pivotally connected to the lower part of the platform body 100 to form a lever structure. The caster 210 is connected to one end of the caster arm 220, and the other end of the caster arm 220 is defined as the drive end. When the caster arm 220 rotates to change position, the caster 210 can extend downwards to the lower side of the platform body 100 and retract upwards into the platform body 100. The drive unit 300 includes a lifting drive 310 and a linkage mechanism 320. The lifting drive 310 is connected to the drive end of each caster arm 220 through the linkage mechanism 320. The lifting drive 310 is used to drive the drive end of each caster arm 220 to rise and fall synchronously through the linkage mechanism 320, so that the caster 210 can extend downwards to the lower side of the platform body 100 and retract upwards into the platform body 100.

[0035] When the platform body 100 needs to be moved, the lifting driver 310 drives the drive ends of each caster arm 220 upwards. The casters 210 at one end of each caster arm 220 then extend downwards and, by pressing against the ground, lift the platform body 100, allowing it to move via the casters 210. When climbing is required, the lifting driver 310 resets the drive ends of each caster arm 220 downwards, allowing the casters 210 to retract into the platform body 100, which then rests directly on the ground, ensuring stability. This mobile operating platform uses the lifting driver 310 to uniformly link the extension and retraction of each caster 210. Operation is simple and only requires operating the lifting driver 310. The casters 210 achieve lever-like extension and retraction via the caster arms 220, resulting in a simple lifting structure that easily supports the platform body 100 and provides stable support during movement.

[0036] In this embodiment, the caster 210 includes two front wheels and two rear wheels, with the two front wheels arranged alternately to the left and right, and the two rear wheels arranged alternately to the left and right. The linkage mechanism 320 includes a front connecting rod 321, a front pull rod 322, a rear connecting rod 323, and a rear pull rod 324. The front connecting rod 321 and the rear connecting rod 323 are both arranged in the left and right direction. The driving ends of the two caster arms 220 corresponding to the two front wheels are connected through the front connecting rod 321, and the driving ends of the two caster arms 220 corresponding to the two rear wheels are connected through the rear connecting rod 323. The lifting drive 310 has a lifting part 311 for lifting action. One end of the front pull rod 322 is hinged to the lifting part 311, and the other end is hinged to the front connecting rod 321. One end of the rear pull rod 324 is hinged to the lifting part 311, and the other end is hinged to the rear connecting rod 323. The hinge axes at both ends of the front pull rod 322 and the rear pull rod 324 are both in the left and right direction. With the above structure, the drive ends of the two caster arms 220 corresponding to the two front wheels are connected by the front linkage 321, and the drive ends of the two caster arms 220 corresponding to the two rear wheels are connected by the rear linkage 323. The lifting part 311 of the lifting drive 310 can lift and lower the front linkage 321 and the rear linkage 323 through the front linkage 322 and the rear linkage 324, thereby driving the two front wheels and the two rear wheels to move. The overall linkage structure is simple and easy to implement.

[0037] In this embodiment, the platform body 100 is connected to a front axle 120 and a rear axle 130, which are arranged horizontally. The caster arms 220 corresponding to the two front wheels are connected to the front axle 120 and rotate through it. The caster arms 220 corresponding to the two rear wheels are connected to the rear axle 130 and rotate through it. In this embodiment, one set of the two front wheels and the two rear wheels can be configured as omnidirectional wheels, while the other set can be configured as directional wheels, thus facilitating flexible movement.

[0038] It is conceivable that in some embodiments, the linkage mechanism 320 is not limited to the structure described above. For example, the lifting drive 310 may use a top pressing part to directly abut the drive end of the lifting caster arm 220. It is understood that there are many ways to lift and lower a certain end of the drive component in the art, and those skilled in the art can configure it according to the actual situation.

[0039] It is conceivable that the number of casters 210 is not limited to the above-mentioned number, and those skilled in the art can reasonably set an appropriate number of casters 210 according to the actual situation.

[0040] In this embodiment, the lifting driver 310 is a jack, which is connected to a drive rod 330. The drive rod 330 is used to drive the lifting part 311 of the jack to rise. One end of the drive rod 330 is rotatably configured, and the other end is provided with a drive foot pedal 331, which extends out of one side of the platform body 100. With the above structure, the drive foot pedal 331 can be operated to drive the lifting part 311 of the jack to rise via the drive rod 330, thereby enabling the casters 210 to extend.

[0041] In this embodiment, the jack is connected to a control rod 340. One end of the control rod 340 is rotatable, and when the control rod 340 rotates to a predetermined position, it controls the lifting part 311 to lock and release its vertical position, respectively. The other end of the control rod 340 is provided with a control foot pedal 341, which extends out of one side of the platform body 100. With the above structure, the control foot pedal 341 can be operated to control the locking and unlocking of the lifting part 311 via the control rod 340, thereby maintaining the position of the casters 210 and retracting them into the platform body 100.

[0042] In one embodiment, the jack can be a hydraulic jack. When the drive rod 330 rotates, it uses a piston pump to pressurize hydraulic oil to push and lift the jack. The control rod 340 can change position to open the hydraulic valve, thereby allowing the hydraulic oil to flow back and releasing the jack. Of course, in other embodiments, the jack can also be of other structural types, and the specific configuration can be made according to the actual situation.

[0043] It is conceivable that in some embodiments, the lifting drive 310 is not limited to using a jack; for example, the lifting drive 310 may use a hydraulic cylinder or an electric lifting platform, etc. It is understood that there are many devices and equipment in the art for realizing the lifting of components, and those skilled in the art can configure them according to the actual situation.

[0044] In this embodiment, the platform body 100 is a staircase structure, with a main operating staircase 110 and an auxiliary step stool 400 located behind the main operating staircase 110. With this structure, during construction operations, one primary operator can stand on the main operating staircase 110 to perform the work, while another assistant can stand on the auxiliary step stool 400 to provide support. Because the auxiliary step stool 400 is located behind the main operating staircase 110, compared to a parallel standing position, it provides the assistant with a similar viewing angle to the primary operator, facilitating collaborative work. Furthermore, the assistant at the rear can protect the primary operator, further enhancing safety.

[0045] In this embodiment, the auxiliary ladder 400 can be adjusted in the left and right direction relative to the platform body 100, thereby facilitating the adjustment of the auxiliary position to adapt to the needs of different construction operations.

[0046] In this embodiment, the auxiliary step stool 400 is slidably disposed on the step following the main operating step 110 in a left-right direction. The auxiliary step stool 400 is connected to a connecting frame 500, which extends forward to the front end of the platform body 100. A locking member 600 is provided at the front end of the connecting frame 500. The locking member 600 is used to clamp the front and rear sides of the main operating step 110 with the auxiliary step stool 400. The locking member 600 is detachable or can be removed from its clamping position. When the left-right position of the auxiliary step stool 400 needs to be adjusted, the locking member 600 can be removed or moved, allowing the auxiliary step stool 400 to be adjusted in the left-right direction. After adjustment, the locking member 600 can be installed or moved back into its clamping position to fix the auxiliary step stool 400 in place. The above-described structure for fixing the auxiliary step stool 400 and adjusting its left-right position is simple and easy to implement.

[0047] In this embodiment, the locking element 600 is a pin, and the front end of the connecting frame 500 is provided with a pin hole 510. The pin hole 510 protrudes from the front side of the front end of the platform body 100. The locking element 600 can be inserted into the pin hole 510, and the part of the locking element 600 extending out of the pin hole 510 can abut against the front end face of the platform body 100, thereby clamping the platform body 100 together with the auxiliary ladder stool 400, thus fixing the auxiliary ladder stool 400. In this embodiment, four locking elements 600 and pin holes 510 are provided, which position and fix the auxiliary ladder stool 400 from four positions respectively. In this embodiment, the locking element 600 can be provided with a sloped structure. The locking element 600 uses the sloped structure to press against the platform body 100, thereby achieving a better fastening effect. In this embodiment, the locking element 600 is a spring pin, which can be locked in the connecting frame 500 through an elastic structure, so that the locking element 600 is not easy to fall out of the installation position.

[0048] It is conceivable that in other embodiments, the locking element 600 is not limited to the aforementioned pin; for example, it may also be a screw, which is threaded onto the connecting bracket 500 and presses against the platform body 100.

[0049] It is conceivable that, in order to achieve the left and right position adjustment of the auxiliary step stool 400, the above-described implementation method is not the only option. For example, the auxiliary step stool 400 can be set on the platform body 100 via a linear slide rail. The linear slide rail can be a model with a positioning structure, which facilitates the positioning of the left and right position of the auxiliary step stool 400. It is understood that there are many other implementation methods in the art for achieving the position adjustment of the component along a predetermined direction, and those skilled in the art can configure them according to the actual situation.

[0050] In this embodiment, the auxiliary step stool 400 is equipped with a storage drawer, which facilitates the placement of necessary tools and parts, improving the convenience of construction operations. In this embodiment, the storage drawer may have multiple compartments and hooks, making it easy to categorize and place tools and parts.

[0051] In this embodiment, handrails 700 are provided on both sides of the main operating ladder 110 to improve operational safety. In this embodiment, the auxiliary ladder 400 may also be equipped with a corresponding handrail structure.

[0052] In this embodiment, the handrail 700 can be folded down and stored within the platform body 100, thus allowing the handrail 700 to be folded when it interferes with construction operations, facilitating operation.

[0053] In this embodiment, the lower end of the handrail 700 can be hinged to the platform body 100 to achieve a folding structure. The handrail 700 is provided with an inclined support rod 710, which connects the handrail 700 to the platform body 100 when the handrail 700 is opened, thereby ensuring the stability of the opened position of the handrail 700.

[0054] In this embodiment, the platform body 100 includes a frame formed by connecting insulating rods. The insulating rods are hollow and reinforced with reinforcing rods. This structure ensures the insulation of the platform body 100 while increasing its strength, avoiding the problem of insufficient strength when using only insulating rods.

[0055] 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.

[0056] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mobile operating platform, characterized in that, include: Platform main body (100); A caster assembly (200) is provided in multiple ways. The caster assembly (200) includes a caster (210) and a caster arm (220). The middle part of the caster arm (220) is pivotally connected to the lower part of the platform body (100) to form a lever structure. The caster (210) is connected to one end of the caster arm (220). The other end of the caster arm (220) is defined as the drive end. When the caster arm (220) rotates to change position, the caster (210) can extend downward to the lower side of the platform body (100) and retract upward into the platform body (100). The drive device (300) includes a lifting drive (310) and a linkage mechanism (320). The lifting drive (310) is connected to the drive end of each caster arm (220) through the linkage mechanism (320). The lifting drive (310) is used to drive the drive ends of each caster arm (220) to rise and fall synchronously through the linkage mechanism (320), so that the caster (210) can extend downward to the lower side of the platform body (100) and retract upward into the platform body (100). The caster (210) includes two front wheels and two rear wheels. The two front wheels are arranged alternately to the left and right, and the two rear wheels are arranged alternately to the left and right. The linkage mechanism (320) includes a front link (321), a front tie rod (322), a rear link (323), and a rear tie rod (324). The front link (321) and the rear link (323) are both arranged in the left and right direction. The driving ends of the two caster arms (220) corresponding to the two front wheels are connected through the front link (321), and the driving ends of the two caster arms (220) corresponding to the two rear wheels are connected through the front link (321). The lifting driver (310) is connected via the rear connecting rod (323) and is a hydraulic cylinder or an electric lifting platform. The lifting driver (310) has a lifting part (311) for lifting action. One end of the front pull rod (322) is hinged to the lifting part (311) and the other end is hinged to the front connecting rod (321). One end of the rear pull rod (324) is hinged to the lifting part (311) and the other end is hinged to the rear connecting rod (323). The hinge axes at both ends of the front pull rod (322) and the rear pull rod (324) are both along the left and right direction.

2. The mobile operating platform according to claim 1, characterized in that: The platform body (100) is a staircase structure. The platform body (100) is provided with a main operating staircase (110) and an auxiliary step stool (400). The auxiliary step stool (400) is located on the rear side of the main operating staircase (110).

3. The mobile operating platform according to claim 2, characterized in that: The auxiliary step stool (400) can be adjusted in the left and right direction relative to the platform body (100).

4. The mobile operating platform according to claim 3, characterized in that: The auxiliary step stool (400) is slidably disposed on the step behind the main operating step (110) in the left-right direction. The auxiliary step stool (400) is connected to a connecting frame (500). The connecting frame (500) extends forward to the front end of the platform body (100). The front end of the connecting frame (500) is provided with a locking member (600). The locking member (600) is used to clamp the front and rear sides of the main operating step (110) with the auxiliary step stool (400). The locking member (600) is detachable or can be removed from the clamping position.

5. The mobile operating platform according to claim 2, characterized in that: The auxiliary step stool (400) is equipped with a storage drawer.

6. The mobile operating platform according to claim 1, characterized in that: The platform body (100) is a staircase structure. The platform body (100) is provided with a main operating staircase (110). Handrails (700) are provided on the left and right sides of the main operating staircase (110).

7. The mobile operating platform according to claim 6, characterized in that: The handrail (700) can be folded down and stored in the platform body (100).

8. The mobile operating platform according to claim 1, characterized in that: The platform body (100) includes a frame formed by connecting insulating rods, the insulating rods being hollow rods and having reinforcing rods inserted through them.