A mobile secondary structure work platform
By designing a mobile secondary structure working platform, the problems of time-consuming and labor-intensive scaffolding construction and unstable working platforms were solved. The platform achieved adjustable height, convenient movement, and reliable braking, thereby reducing construction difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 12TH BUREAU GRP INT ENG CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, scaffolding is time-consuming and labor-intensive to erect, and its height is not easy to adjust. Ordinary work platforms are unstable on uneven ground and their brakes are unreliable, posing a risk of slippage.
A movable secondary structure work platform including a platform, outriggers, wheels, and a braking device is designed. Wheels are installed at the bottom of the outriggers, and the braking device achieves reliable braking through brake wheels, L-shaped clamps, and brake lines. The outriggers are height-adjustable and equipped with a leveling device to adapt to uneven ground.
It features height adjustability, easy mobility, and reliable braking, reducing the workload and cost at construction sites while improving the stability and safety of the work platform.
Smart Images

Figure CN224579031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mobile secondary structure operation platform, belonging to the field of building construction technology. Background Technology
[0002] In the secondary structural construction of building projects, when encountering high-altitude operations such as plastering, masonry, or ceiling decoration, scaffolding or working platforms are generally required for construction workers to access these areas. However, scaffolding is time-consuming and labor-intensive to erect, and the height of the erected scaffolding is difficult to adjust and it is inconvenient to move. Ordinary working platforms also have disadvantages such as not being able to adjust their height, being unstable on uneven ground, and having unreliable braking under heavy loads, which can easily lead to slippage. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a secondary structure working platform that is highly adjustable, easy to move, and has reliable braking.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a movable secondary structure work platform, including a platform, outriggers, wheels, and a braking device. The platform is horizontally arranged, and four outriggers are fixed below the platform. Each outrigger is equipped with a wheel at its bottom.
[0005] The braking device includes a brake wheel, an L-shaped clamp, a brake cable, and a brake handle. Each traveling wheel is fixed with a brake wheel that rotates coaxially with it. Multiple brake teeth are evenly distributed on the circumference of the brake wheel. An L-shaped clamp is set above each brake wheel. One end of the L-shaped clamp is a movable end that is inserted between two adjacent brake teeth on the brake wheel. The other end is a mounting end that is hinged to the wheel frame via a pivot and a torsion spring is installed between the pivot and the pivot. The brake handle is mounted on a support leg and is connected to four L-shaped clamps via a brake cable.
[0006] Preferably, the upper end of the brake cable is connected to the brake handle, and the lower end is divided into four strands that are respectively connected to the movable ends of four L-shaped clips. The brake cable is fitted inside the brake cable tube.
[0007] Preferably, the L-shaped locking piece is replaced by a brake latch, the upper part of which is movably fitted inside the sleeve, and the lower end extends out of the sleeve and is inserted between two adjacent brake teeth. The sleeve is fixed above the brake wheel, and a compression spring is provided between the top of the brake latch and the sleeve. The lower end of the brake cable passes through the sleeve and is connected to the brake latch.
[0008] Preferably, the traveling wheel is a swivel wheel, which includes a wheel, a bracket for mounting the wheel, and a mounting plate connected to the outrigger. The bracket is provided with a lower limit block, and the mounting plate is provided with an upper limit block that cooperates with the lower limit block.
[0009] Preferably, all the outriggers are telescopic rods with self-locking mechanisms.
[0010] Preferably, the outrigger includes an outer sleeve and an inner sleeve, with the inner sleeve fitted inside the outer sleeve. A spring locking tongue is installed on one end of the inner sleeve inside the outer sleeve. The outer sleeve has multiple vertically arranged holes that cooperate with the spring locking tongue. The inner sleeve and the outer sleeve also have multiple corresponding adjustment holes into which safety pins are inserted.
[0011] Preferably, a leveling device is installed between the bottom of the outrigger and the traveling wheel. The leveling device includes a double-ended stud and a bottom sleeve. The upper end of the double-ended stud is threadedly connected to the lower end of the outrigger, and the lower end of the double-ended stud is threadedly connected to the bottom sleeve. The traveling wheel is installed below the bottom sleeve.
[0012] Preferably, in this invention, the lower parts of two adjacent legs are connected together by a connecting rod.
[0013] Compared with the prior art, the present invention has the following beneficial effects.
[0014] This invention is easy to move, height-adjustable, and has reliable braking; it can also be leveled when encountering uneven ground. When used for secondary structure construction, it is simple and quick to use, reducing the workload and costs on the construction site. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a perspective view of the present invention.
[0018] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.
[0019] Figure 4 This is a schematic diagram of the structure of the walking wheel in this utility model.
[0020] Figure 5 This is a schematic diagram of the braking device in Embodiment 1 of this utility model.
[0021] Figure 6 for Figure 5 Side view.
[0022] Figure 7 for Figure 5 A bottom view.
[0023] Figure 8 This is a schematic diagram of the braking device in Embodiment 2 of this utility model.
[0024] Figure 9 for Figure 8 Side view.
[0025] Figure 10 for Figure 8 A bottom view.
[0026] In the diagram: 1 is the platform, 2 is the support leg, 3 is the traveling wheel, 4 is the brake device, 5 is the brake wheel, 6 is the L-shaped clamp, 7 is the brake cable, 8 is the brake handle, 9 is the torsion spring, 10 is the brake latch, 11 is the sleeve, 12 is the compression spring, 13 is the wheel, 14 is the bracket, 15 is the mounting plate, 16 is the lower limit block, 17 is the upper limit block, 18 is the outer sleeve, 19 is the inner sleeve, 20 is the spring latch, 21 is the safety pin, 22 is the double-ended stud, 23 is the bottom sleeve, and 24 is the connecting rod. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0028] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0029] The present invention provides the following embodiments.
[0030] Example 1
[0031] like Figure 1 , Figure 2 , Figure 4As shown, the present invention provides a movable secondary structure work platform, including a platform 1, outriggers 2, wheels 3 and a braking device 4. The platform 1 is horizontally arranged, and four outriggers 2 are fixed below the platform 1. Each outrigger 2 is equipped with a wheel 3 at its bottom.
[0032] like Figure 5 , Figure 6 , Figure 7 As shown, the braking device 4 includes a brake wheel 5, an L-shaped clamp 6, a brake cable 7, and a brake handle 8. Each traveling wheel 3 has a brake wheel 5 fixed on it, rotating coaxially with it. Multiple brake teeth are evenly distributed on the circumference of each brake wheel 5. An L-shaped clamp 6 is positioned above each brake wheel 5. One end of the L-shaped clamp 6 is a movable end, which inserts between two adjacent brake teeth on the brake wheel 5. The other end is a mounting end, which is hinged to the wheel frame of the traveling wheel 3 via a pivot and has a torsion spring 9 installed between it and the pivot. The brake handle 8 is mounted on a support leg and is connected to the four L-shaped clamps 6 via the brake cable 7. The torsion spring 9 provides clamping force to the L-shaped clamps 6, ensuring reliable braking.
[0033] The brake wheel 5 is fixed on the hub of the traveling wheel 3, and the L-shaped clip 6 is snapped inward and inserted between the brake teeth to brake the brake wheel 5, which is more reliable than friction braking.
[0034] One end of the brake handle 8 is connected to the upper end of the brake cable 7, the middle part of the brake handle 8 is hinged to the support leg, and the other end of the brake handle 8 is provided with a return spring.
[0035] The upper end of the brake cable 7 is connected to the brake handle 8, and the lower end is divided into four strands that are connected to the movable ends of four L-shaped clips 6 respectively. The brake cable 7 is fitted inside the brake cable tube.
[0036] All outriggers 2 are telescopic rods with self-locking mechanisms.
[0037] The outrigger 2 includes an outer sleeve 18 and an inner sleeve 19. The inner sleeve 19 is fitted inside the outer sleeve 18. A spring locking tongue 20 is installed on one end of the inner sleeve 19 inside the outer sleeve 18. The outer sleeve 18 has multiple vertically arranged holes that cooperate with the spring locking tongue 20. The inner sleeve 19 and the outer sleeve 18 also have multiple corresponding adjustment holes, into which safety pins 21 are inserted.
[0038] In this utility model, the inner sleeve 19 is located above the outer sleeve 18. The height is adjusted by sliding the inner sleeve 19 up and down inside the outer sleeve 18. The height is fixed by the spring locking tongue 20 cooperating with different holes. The safety pin 21 cooperates with the adjustment hole to increase safety. The safety pin 21 is a pin or a bolt.
[0039] like Figure 3As shown, a leveling device is installed between the bottom of the outrigger 2 and the traveling wheel 3. The leveling device includes a double-ended stud 22 and a bottom sleeve 23. The upper end of the double-ended stud 22 is threadedly connected to the lower end of the outrigger 2, and the lower end of the double-ended stud 22 is threadedly connected to the bottom sleeve 23. The traveling wheel 3 is installed below the bottom sleeve 23.
[0040] The double-ended stud 22 is fixed with a nut or handle in the middle to facilitate the rotation of the double-ended stud 22 during leveling.
[0041] The lower parts of two adjacent support legs 2 are connected together by a connecting rod 24, which can increase the overall stability of this utility model.
[0042] Example 2
[0043] like Figure 8 , Figure 9 , Figure 10 As shown, in this second embodiment, the L-shaped clip 6 in the first embodiment is replaced by a brake latch 10. The upper part of the brake latch 10 is movably fitted inside the sleeve 11, and the lower end extends out of the sleeve 11 and is inserted between two adjacent brake teeth. The sleeve 11 is fixed above the brake wheel 5. A compression spring 12 is provided between the top of the brake latch 10 and the sleeve 11. The lower end of the brake line 7 passes through the sleeve 11 and is connected to the brake latch 10.
[0044] In this second embodiment, the brake latch 10 replaces the L-shaped clip 6 and engages between the brake teeth for braking, and the braking is equally reliable.
[0045] The rest of the structure is the same as in Example 1.
[0046] Example 3
[0047] In this third embodiment, the traveling wheel 3 is a universal wheel, which includes a wheel 13, a bracket 14 for mounting the wheel, and a mounting plate 15 connected to the outrigger. The bracket 14 is provided with a lower limit block 16, and the mounting plate 15 is provided with an upper limit block 17 that cooperates with the lower limit block 16.
[0048] Two lower limit blocks 16 can be provided, which cooperate with the upper limit block 17 to limit the rotation angle of the omnidirectional wheel and prevent the brake line 7 from getting tangled on the outrigger 2 and affecting braking.
[0049] The remaining structures are the same as in Embodiment 1 or Embodiment 2.
[0050] The method of using this utility model is as follows.
[0051] Adjusting the height: Remove the safety pin 21 on the outrigger 2, press the spring locking tongue 20 into the outer sleeve 18, lift the inner sleeve 19 upwards to lengthen the outrigger 2, or press the inner sleeve 19 downwards into the outer sleeve 18 to shorten the outrigger 2. After adjusting to the appropriate height, let the spring locking tongue 20 pop out from the appropriate hole and insert the safety pin 21. The height of this utility model is now adjusted.
[0052] Braking and travel: This utility model is normally in the braking state. The L-shaped locking piece 6 or the brake locking tongue 10 is engaged between the brake teeth on the brake wheel 5, preventing the brake wheel 5 from rotating and thus braking the travel wheel 3. If it is necessary to move this utility model, pull the brake handle 8. The brake handle 8 drives the L-shaped locking piece 6 or the brake locking tongue 10 upward through the brake cable 7, disengaging it from between the brake teeth. The travel wheel 3 can then rotate, thereby moving this utility model. After it is in place, release the brake handle 8. The L-shaped locking piece 6 or the spring locking tongue 20, under the action of the torsion spring 9 or the compression spring 12, re-engages between the brake teeth, braking the travel wheel 3 and preventing it from slipping.
[0053] Leveling: When encountering uneven ground, leveling is required for the stability of this utility model. Locate the outrigger 2 that needs to be extended, hold the traveling wheel 3, and rotate the double-ended stud 22 to lower the traveling wheel 3 until it contacts the ground.
[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A movable secondary structure working platform, comprising a platform (1), outriggers (2), wheels (3) and a braking device (4), wherein the platform (1) is horizontally arranged, four outriggers (2) are fixed below the platform (1), and each outrigger (2) is equipped with a wheel (3) at its bottom. characterized in that The braking device (4) includes a brake wheel (5), an L-shaped clip (6), a brake cable (7), and a brake handle (8). Each traveling wheel (3) is fixed with a brake wheel (5) that rotates coaxially with it. Multiple brake teeth are evenly distributed on the circumference of the brake wheel (5). An L-shaped clip (6) is set above each brake wheel (5). One end of the L-shaped clip (6) is a movable end, which is inserted between two adjacent brake teeth on the brake wheel (5). The other end is a mounting end, which is hinged to the wheel frame of the traveling wheel (3) through a rotating shaft and a torsion spring (9) is installed between the rotating shaft and the mounting end. The brake handle (8) is mounted on a support leg and is connected to four L-shaped clips (6) through the brake cable (7).
2. The mobile secondary structure work platform according to claim 1, characterized in that: The upper end of the brake cable (7) is connected to the brake handle (8), and the lower end is divided into four strands that are connected to the movable ends of four L-shaped clips (6). The brake cable (7) is fitted inside the brake cable tube.
3. The mobile secondary structure work platform according to claim 1, characterized in that: The L-shaped clip (6) is replaced by a brake latch (10). The upper part of the brake latch (10) is movably fitted inside the sleeve (11), and the lower end extends out of the sleeve (11) and is inserted between two adjacent brake teeth. The sleeve (11) is fixed above the brake wheel (5). A compression spring (12) is provided between the top of the brake latch (10) and the sleeve (11). The lower end of the brake line (7) passes through the sleeve (11) and connects to the brake latch (10).
4. A movable secondary structure working platform according to claim 1 or 3, characterized in that: The walking wheel (3) is a universal wheel, which includes a wheel (13), a bracket (14) for mounting the wheel, and a mounting plate (15) connected to the outrigger. A lower limit block (16) is provided on the bracket (14), and an upper limit block (17) that cooperates with the lower limit block (16) is provided on the mounting plate (15).
5. A movable secondary structure working platform according to claim 1 or 2, characterized in that: The outriggers (2) are all telescopic rods with self-locking.
6. The movable secondary structure working platform according to claim 5, characterized in that: The outrigger (2) includes an outer sleeve (18) and an inner sleeve (19). The inner sleeve (19) is fitted inside the outer sleeve (18). A spring lock tongue (20) is installed on one end of the inner sleeve (19) inside the outer sleeve (18). The outer sleeve (18) has multiple vertically arranged holes that cooperate with the spring lock tongue (20). The inner sleeve (19) and the outer sleeve (18) also have multiple corresponding adjustment holes. A safety pin (21) is inserted into the adjustment hole.
7. A movable secondary structure working platform according to claim 1 or 2, characterized in that: A leveling device is installed between the bottom of the outrigger (2) and the walking wheel (3). The leveling device includes a double-ended stud (22) and a bottom sleeve (23). The upper end of the double-ended stud (22) is threadedly connected to the lower end of the outrigger (2), and the lower end of the double-ended stud (22) is threadedly connected to the bottom sleeve (23). The walking wheel (3) is installed below the bottom sleeve (23).
8. A movable secondary structure working platform according to claim 1 or 2, characterized in that: The lower parts of two adjacent legs (2) are connected together by a connecting rod (24).