Movable operation frame for bridge construction
By designing a mobile operating frame for bridge construction and utilizing a combination of adjusting bolts and casters, the frame achieves rapid movement and high stability, solving the problem that existing platforms are difficult to adapt to changing environments and improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 厦门路桥百城建设投资有限公司
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-15
AI Technical Summary
Existing bridge construction operation platforms are difficult to adapt to changing working environments, and the installation process is cumbersome, unstable, and poses safety hazards.
A bridge construction mobile operating frame was designed. By adjusting bolts and embedding them into adjustment holes, the casters or support legs can be placed on the ground. Combined with retractable support legs and a braking device, it can achieve rapid movement and improve stability.
It enables flexible movement and high stability of the operating frame, improves construction safety and efficiency, and simplifies the installation process.
Smart Images

Figure CN224243682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bridge construction equipment, specifically a bridge construction mobile operating frame. Background Technology
[0002] During bridge construction, workers need to perform welding, installation, and maintenance work at heights or in different locations on the bridge, creating a complex and potentially dangerous construction environment. Existing operating platforms are typically fixed or simple mobile frames, which are ill-suited to the changing working environment of bridge construction, especially in areas requiring frequent repositioning. Furthermore, the installation process of existing operating frames is cumbersome, and their stability is poor, making them prone to displacement or collapse due to vibrations or external forces during construction, posing significant safety hazards.
[0003] Therefore, designing a flexible, quick-to-assemble, and stable bridge construction mobile operating frame to adapt to the changing environment of bridge construction and improve construction safety and efficiency has become an urgent problem to be solved. Utility Model Content
[0004] The purpose of this utility model is to provide a bridge construction mobile operating frame. When the bridge construction mobile operating frame needs to be moved, by changing the adjustment hole into which the adjustment bolt is embedded, only the casters are on the ground, which facilitates the quick movement of the entire operating frame. When work is required, by changing the adjustment hole into which the adjustment bolt is embedded, the support legs and casters are on the ground at the same time, which can improve the installation stability of the entire operating frame, making it highly flexible, easy to assemble, and stable.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bridge construction mobile operating frame includes two support legs, a support platform, and four mobile support devices. The support legs are respectively located on both sides, and multiple stabilizing rods are fixed to each support leg at intervals from top to bottom. These stabilizing rods improve the stability of the support legs and allow construction personnel to climb up or down the operating frame. The support platform is installed at both ends of the support legs. The mobile support devices are respectively located at the four corners of the operating frame. Each mobile support device includes a support rod, an adjusting rod, a caster wheel, and an adjusting bolt. One end of the support rod is fixedly connected to the lower part of the support leg, and the other end is fixed to a sleeve. The lower end of the adjusting rod is fixedly connected to the caster wheel, and the upper end of the adjusting rod passes through the sleeve. At least two adjusting holes are provided at intervals from top to bottom on the upper end of the adjusting rod. The adjusting bolt is threaded to the sleeve, and its inner end is embedded in the adjusting hole. The adjusting bolt allows only the caster wheel to touch the ground or both the support leg and the caster wheel to touch the ground simultaneously.
[0007] Furthermore, the caster wheel is equipped with a braking device, which is used to brake or release the caster wheel.
[0008] Furthermore, the support leg is a telescopic structure, and the support leg also includes two telescopic units; the telescopic unit includes multiple layers of retractable support tubes, with the lower end of the upper layer support tube sleeved inside the lower layer support tube; the support platform is fixed to the uppermost support tube, and the support rod is fixed to the lowermost support tube; multiple locking holes are provided at intervals from top to bottom on the support tube between the support platform and the support rod; the upper end of the lower layer support tube is threaded with a locking bolt, and the length of the support leg can be adjusted by changing the inner end of the locking bolt into the locking hole on the upper layer support tube; the two ends of the stabilizing rod are respectively fixed to the two support tubes on the same layer.
[0009] Furthermore, at least two overlapping rods are provided between the two stabilizing rods on the same floor; each of the overlapping rods has a groove at its lower end on both sides; the grooves are placed on the stabilizing rods, and the two supporting legs are connected together by the overlapping rods.
[0010] Furthermore, each end of the lap rod is provided with an arc-shaped hook piece; a stabilizing bolt is provided at one end of the arc-shaped hook piece; the stabilizing bolt passes through the arc-shaped hook piece and its inner end is threadedly connected to the lap rod, and the arc-shaped hook piece is hooked onto the stabilizing rod by flipping it outward.
[0011] Furthermore, a tool tray is provided between the two overlapping rods below the support platform; the tool tray has sliding grooves on both sides, and the overlapping rods are embedded in the sliding grooves.
[0012] Furthermore, a safety railing is fixed to the upper side of the support platform; both the support platform and the safety railing are respectively erected on stabilizing poles, and arc-shaped hooks and stabilizing bolts are provided on both sides of the support platform.
[0013] Furthermore, the upper surface of the support platform is provided with a rough, anti-slip part.
[0014] After adopting the above technical solution, the present invention has the following beneficial effects:
[0015] 1. This utility model relates to a mobile operating frame for bridge construction. When movement is required, by changing the adjustment hole into which the adjustment bolt is embedded, only the casters are allowed to touch the ground, and the braking device on the casters is released, facilitating the rapid movement of the entire operating frame. When work is required, by changing the adjustment hole into which the adjustment bolt is embedded, the support legs and casters are allowed to touch the ground simultaneously, and the casters can be braked by the braking device, further improving the contact between the operating frame and the ground. This enhances the installation stability of the entire operating frame, providing high flexibility, easy assembly, and good stability.
[0016] 2. This utility model provides a bridge construction mobile operating frame. The upper end of the support pipe of the lower layer is threaded with a locking bolt. By changing the locking hole embedded in the inner end of the locking bolt on the upper layer support pipe, the length of the support leg can be adjusted. The installation height of the support platform can be flexibly adjusted according to the actual working conditions on site, which is highly flexible.
[0017] 3. This utility model provides a bridge construction mobile operating frame. The grooves at both ends of the lap pole are attached to the stabilizing pole. Not only can the two supporting legs be connected together through the lap pole to further improve the stability of the entire operating frame, but some items required for construction can also be placed on the lap pole or tool tray for easy use.
[0018] 4. This utility model relates to a bridge construction mobile operating frame, in which the support platform and safety guardrail are respectively erected on two stabilizing poles, facilitating the detachable installation of the support platform and safety guardrail onto the two support legs; in addition, both sides of the lap pole and the support platform are provided with arc-shaped hooks and stabilizing bolts. After the lap pole and the support platform are erected on the stabilizing pole, they can be flipped outwards to hook the arc-shaped hooks onto the stabilizing pole, and the arc-shaped hooks are locked with stabilizing bolts. The arc-shaped hooks can further limit the up-and-down swaying of the lap pole and the support platform on the stabilizing pole, thereby improving the installation stability. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the support leg of this utility model when it is extended.
[0020] Figure 2 This is a three-dimensional structural diagram of the support leg of this utility model when it is retracted.
[0021] Figure 3 This is a partially enlarged view of the upper part of this utility model;
[0022] Figure 4 This is a partial enlarged view of the mobile support device of this utility model.
[0023] The reference numerals in the figure are as follows:
[0024] 1. Support leg; 10. Stabilizing bar; 11. Telescopic unit; 110. Support tube; 1100. Locking hole; 111. Locking bolt; 2. Support platform; 20. Safety railing; 21. Rough anti-slip part; 3. Mobile support device; 30. Support rod; 300. Sleeve; 31. Adjusting rod; 310. Adjusting hole; 32. Caster wheel; 33. Adjusting bolt; 34. Braking device; 4. Connecting rod; 40. Groove; 41. Arc hook plate; 42. Stabilizing bolt; 5. Tool tray; 50. Slide groove. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] Please see Figures 1 to 4 A bridge construction mobile operating frame includes two support legs 1, a support platform 2, and four movable support devices 3. The support legs 1 are respectively located on both sides, and multiple stabilizing rods 10 are fixed to each support leg 1 at intervals from top to bottom. These stabilizing rods 10 improve the stability of the support legs 1 and provide a means for construction workers to climb up or down the operating frame. The support platform 2 is installed at both ends of the support legs 1. The movable support devices 3 are respectively located at the four corners of the operating frame. Each movable support device 3 includes a support rod 30, an adjusting rod 31, casters 32, and... Adjusting bolt 33; one end of the support rod 30 is fixedly connected to the lower part of the support leg 1, and the other end of the support rod 30 is fixed with a sleeve 300; the lower end of the adjusting rod 31 is fixedly connected to the universal wheel 32, and the upper end of the adjusting rod 31 passes through the sleeve 300; at least two adjusting holes 310 are provided at intervals from top to bottom on the upper end of the adjusting rod 31; the adjusting bolt 33 is threadedly connected to the sleeve 300 and its inner end is embedded in the adjusting hole 310, so that the universal wheel 32 can be grounded only by adjusting bolt 33 or the support leg 1 and the universal wheel 32 can be grounded at the same time.
[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the universal wheel 32 is equipped with a brake device 34, which brakes or releases the universal wheel 32. The brake device 34 can adopt an existing structure, which will not be described in detail here.
[0028] like Figures 1 to 3 As shown, the support leg 1 is a telescopic structure, and the support leg 1 also includes two telescopic units 11; the telescopic unit 11 includes multiple layers of retractable support tubes 110, with the lower end of the upper layer support tube 110 sleeved inside the lower layer support tube 110; the support platform 2 is fixed to the uppermost support tube 110, and the support rod 30 is fixed to the lowermost support tube 110; multiple locking holes 1100 are provided at intervals from top to bottom on the support tube 110 between the support platform 2 and the support rod 30; the upper end of the lower layer support tube 110 is threaded with a locking bolt 111, and the length of the support leg 1 can be adjusted by changing the inner end of the locking bolt 111 into the locking hole 1100 on the upper layer support tube 110; the two ends of the stabilizing rod 10 are respectively fixed to the two support tubes 110 on the same layer.
[0029] like Figures 1 to 3As shown, at least two overlapping rods 4 are provided between the two stabilizing rods 10 on the same layer; the lower ends of the two sides of the overlapping rods 4 are respectively provided with overlapping grooves 40; the overlapping grooves 40 are placed on the stabilizing rods 10, and the two supporting legs 1 are connected together by the overlapping rods 4.
[0030] like Figures 1 to 3 As shown, the two ends of the lap rod 4 are respectively provided with arc-shaped hook pieces 41; one end of the arc-shaped hook piece 41 is provided with a stabilizing bolt 42; the stabilizing bolt 42 passes through the arc-shaped hook piece 41 and its inner end is threadedly connected to the lap rod 4, and the arc-shaped hook piece 41 is hooked onto the stabilizing rod 10 by flipping it outward.
[0031] like Figures 1 to 3 As shown, a tool tray 5 is provided between the two overlapping rods 4 below the support platform 2; the tool tray 5 is provided with a sliding groove 50 on both sides, and the overlapping rod 4 is embedded in the sliding groove 50.
[0032] like Figures 1 to 3 As shown, a safety railing 20 is fixed to the upper side of the support platform 2; both sides of the support platform 2 and the safety railing 20 are respectively erected on the stabilizing rod 10, and arc-shaped hooks 41 and stabilizing bolts 42 are provided on both sides of the support platform 2.
[0033] like Figures 1 to 3 As shown, the upper surface of the support platform 2 is provided with a rough anti-slip part 21.
[0034] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.
[0035] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.
[0036] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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.
[0037] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.
[0038] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.
[0039] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0040] 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 bridge construction mobile operating frame, characterized in that: It includes two support legs (1), a support platform (2), and four movable support devices (3); the support legs (1) are respectively set on both sides, and multiple stabilizing rods (10) are fixed on the support legs (1) from top to bottom at intervals, which improve the stability of the support legs (1) and allow construction personnel to climb up or down the operating frame; the support platform (2) is installed at both ends on the upper end of the support legs (1); the movable support devices (3) are respectively set at the four corners of the operating frame; the movable support devices (3) include support rods (30), adjusting rods (31), casters (32), and adjusting bolts (33); One end of the support rod (30) is fixedly connected to the lower part of the support leg (1), and the other end of the support rod (30) is fixed with a sleeve (300); the lower end of the adjusting rod (31) is fixedly connected to the universal wheel (32), and the upper end of the adjusting rod (31) passes through the sleeve (300); at least two adjusting holes (310) are provided at intervals from top to bottom on the upper end of the adjusting rod (31); the adjusting bolt (33) is threadedly connected to the sleeve (300) and its inner end is embedded in the adjusting hole (310), so that only the universal wheel (32) touches the ground or the support leg (1) and the universal wheel (32) touch the ground at the same time through the adjusting bolt (33).
2. The bridge construction mobile operating frame as described in claim 1, characterized in that: The universal wheel (32) is equipped with a brake device (34), which can brake or release the universal wheel (32).
3. The bridge construction mobile operating frame as described in claim 1, characterized in that: The support leg (1) is a telescopic structure, and the support leg (1) also includes two telescopic units (11); the telescopic unit (11) includes multiple layers of retractable support tubes (110), with the lower end of the upper layer support tube (110) sleeved inside the lower layer support tube (110); the support platform (2) is fixed on the uppermost support tube (110), and the support rod (30) is fixed on the lowermost support tube (110); multiple locking holes (1100) are provided at intervals from top to bottom on the support tube (110) between the support platform (2) and the support rod (30); the upper end of the lower layer support tube (110) is threaded with a locking bolt (111), and the length of the support leg (1) is adjusted by changing the locking hole (1100) on the upper layer support tube (110) embedded in the inner end of the locking bolt (111); the two ends of the stabilizing rod (10) are respectively fixed on the two support tubes (110) of the same layer.
4. The bridge construction mobile operating frame as described in claim 3, characterized in that: At least two overlapping rods (4) are provided between the two stabilizing rods (10) on the same floor; the lower ends of the overlapping rods (4) are respectively provided with grooves (40); the grooves (40) are placed on the stabilizing rods (10) and the two supporting legs (1) are connected together by the overlapping rods (4).
5. The bridge construction mobile operating frame as described in claim 4, characterized in that: The two ends of the lap rod (4) are respectively provided with arc-shaped hook pieces (41); one end of the arc-shaped hook piece (41) is provided with a stabilizing bolt (42); the stabilizing bolt (42) passes through the arc-shaped hook piece (41) and its inner end is threadedly connected to the lap rod (4), and the arc-shaped hook piece (41) is hooked onto the stabilizing rod (10) by turning it outward.
6. The bridge construction mobile operating frame as described in claim 4, characterized in that: A tool tray (5) is provided between the two overlapping rods (4) below the support platform (2); a sliding groove (50) is provided on both sides of the tool tray (5), and the overlapping rod (4) is embedded in the sliding groove (50).
7. The bridge construction mobile operating frame as described in claim 5, characterized in that: The upper side of the support platform (2) is fixed with a safety railing (20); both sides of the support platform (2) and the safety railing (20) are respectively erected on the stabilizing rod (10), and arc-shaped hooks (41) and stabilizing bolts (42) are provided on both sides of the support platform (2).
8. The bridge construction mobile operating frame as described in claim 1, characterized in that: The upper surface of the support platform (2) is provided with a rough anti-slip part (21).