Combined bracket trolley
By designing a modular corbel trolley and utilizing an electric control walking system and adjustment unit, the problems of difficult formwork positioning and safety hazards in traditional construction have been solved, enabling efficient and safe pouring of tunnel corbel formwork.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC TUNNEL ENG CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-21
AI Technical Summary
In traditional construction methods, erecting and dismantling scaffolding is time-consuming and labor-intensive, resulting in low construction efficiency, difficulty in positioning formwork, and potential safety hazards. This is especially true in tunnel engineering, where the casting of corbel formwork is a complex process.
A modular bracket trolley is adopted, including a trolley base, bracket template, and electric control walking system. The angle and position of the template can be adjusted by adjusting units such as cylinders and telescopic rods. Combined with auxiliary wheels and support mechanisms, the movement and positioning accuracy are improved.
It improved the safety and efficiency of tunnel corbel formwork pouring, solved the problem of inconsistent pouring reference surfaces, and enhanced the convenience and safety of construction.
Smart Images

Figure CN224149587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ox-leg trolley technology, and in particular to a combined ox-leg trolley. Background Technology
[0002] A corbel is an essential supporting structure in a cantilever system, located between the cantilever beam and the cantilever itself. It's typically a localized structure at the end of the cantilever and the end of the cantilever beam, also known as a beam support, that transfers the load from the cantilever beam. Because the beams overlap, load-bearing supports are also installed in between to transfer significant vertical and horizontal reactions. Therefore, the corbel's height is reduced to less than half the beam height, yet it still needs to transfer substantial vertical and horizontal reactions, making it a weak point in the superstructure. In tunnel engineering, the pouring of the corbel for the roadway slab is a crucial and complex construction step.
[0003] Traditional construction methods typically employ modular scaffolding as the formwork support system, using full-span supports to secure the corbel formwork and facilitate concrete pouring. However, erecting and dismantling scaffolding is time-consuming and labor-intensive, resulting in low construction efficiency. Due to site conditions, there is often a height difference between the pouring reference surfaces on both sides of the tunnel, making formwork positioning difficult, affecting structural accuracy, and limiting the stability of the scaffolding system, thus posing certain construction safety hazards. Utility Model Content
[0004] The purpose of this utility model is to provide a combined bracket trolley that can avoid the problems of time-consuming and labor-intensive construction, low construction efficiency, and limitations imposed by site conditions when pouring concrete for bracket formwork.
[0005] This utility model provides a combined bracket trolley, comprising:
[0006] A trolley base and a bracket template disposed on one side of the trolley base, wherein an adjustment unit is provided on one side of the bracket template;
[0007] The trolley base has an electrically controlled walking system at its lower end, and auxiliary mechanisms and auxiliary wheels are respectively installed on both sides of the lower end of the trolley base.
[0008] Preferably, the electronically controlled walking system includes a drive wheel, and the output end of the drive wheel is connected to a geared motor via a transmission belt.
[0009] Preferably, the trolley base is welded and fixed by a steel frame, and the whole is arranged in a trapezoidal shape, with stiffening plates welded on both sides of the main beam of the trolley base.
[0010] Preferably, a telescopic rod is provided on the upper side of one side of the trolley base, and the telescopic rod is threadedly installed inside the threaded seat provided on the upper side of the trolley base.
[0011] Preferably, the adjustment unit includes a cylinder, one end of which is movably mounted on the upper end of the trolley base via a mounting shaft, and the other end is movably mounted on the lower end of the mounting bracket fixedly installed on one side of the bracket template via a mounting shaft.
[0012] Preferably, the upper end of the mounting frame is fitted with an extension sleeve, the bracket template is fixedly installed on one side of the extension sleeve, and a second cylinder is movably installed on one side of the extension sleeve. One end of the second cylinder is connected to one side of the extension sleeve via a pin, and the other end of the second cylinder is movably connected to the upper end of the trolley base.
[0013] Preferably, the lower end of the mounting bracket is mounted on the upper end of the sliding sleeve via a pin, and the lower end of the sliding sleeve is slidably mounted on the upper end of the slide rail fixedly installed on the upper surface of the trolley base. A positioning bracket is provided on one side of the sliding sleeve, and one end of the sliding sleeve is mounted to cylinder three. Cylinder one, cylinder two, and cylinder three are all mounted inside the positioning bracket via mounting shafts.
[0014] Preferably, the auxiliary mechanism includes a support wheel for supporting the lower end of the trolley base. The support wheel is supported by a bracket installed at the upper end, and a cylinder is provided on one side of the bracket.
[0015] This utility model provides a combined corbel trolley, which solves the problem of corbel pouring inside tunnel lane slabs by combining corbel templates and a movable trolley base at the lower end. It changes the traditional method of pouring by using disc-lock scaffolding to support the templates, enhances pouring safety, improves pouring efficiency, and the separately installed corbel trolleys solve the height problem caused by inconsistent pouring reference surfaces on both sides of the tunnel, thus improving the safety and convenience of on-site construction. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0018] Figure 2 This is a schematic diagram of the trolley base tunnel installation structure according to an embodiment of the present utility model.
[0019] Figure 3 This is a schematic diagram of the planar structure of the trolley base according to an embodiment of the present utility model.
[0020] Figure 4This is a schematic diagram of the adjustment unit structure according to an embodiment of the present invention.
[0021] Figure 5 This is a schematic diagram of the back structure of the adjustment unit in an embodiment of the present invention.
[0022] Figure 6 This is a schematic diagram of the lower end structure of the trolley base according to an embodiment of the present utility model.
[0023] Figure 7 This is an embodiment of the present utility model. Figure 1 Enlarged structural diagram at point A in the middle.
[0024] Figure descriptions: 100, trolley base; 200, bracket template; 300, adjustment unit; 310, sliding sleeve; 320, slide rail; 330, cylinder one; 340, cylinder two; 350, cylinder three; 360, extension sleeve; 361, mounting bracket; 400, auxiliary mechanism one; 410, support wheel; 420, bracket; 430, cylinder four; 500, telescopic rod; 600, auxiliary wheel; 700, electric control walking system. Detailed Implementation
[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.
[0027] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0029] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0030] To better understand the purpose, structure, and function of this utility model, a combined bracket trolley of this utility model will be described in further detail below with reference to the accompanying drawings.
[0031] like Figures 1-7 As shown, this utility model embodiment provides a combined bracket trolley, including a trolley base 100 for supporting the whole, and a bracket template 200 disposed on one side of the trolley base 100 for molding the bracket. An adjustment unit 300 for adjusting the angle of the bracket template 200 is disposed on one side of the bracket template 200.
[0032] The lower end of the trolley base 100 is provided with an electrically controlled walking system 700 for moving the trolley base 100. On both sides of the lower end of the trolley base 100, auxiliary mechanisms 400 and auxiliary wheels 600 are respectively installed to support the trolley base 100.
[0033] By combining the corbel formwork 200 and the movable trolley base 100 at the lower end, the problem of corbel pouring for the roadway slab inside the tunnel is solved. This changes the traditional method of pouring by using disc-lock scaffolding to support the formwork, enhances pouring safety, and improves pouring efficiency. Furthermore, the separately installed corbel trolleys solve the height problem caused by the inconsistent pouring reference surfaces on both sides of the tunnel, improving the safety and convenience of on-site construction.
[0034] The electric walking system 700 includes a drive wheel for moving the upper trolley base 100. The output end of the drive wheel is connected to a geared motor via a transmission belt, and the electric walking system 700 moves the upper trolley base 100.
[0035] The trolley base 100 is fixed by welding steel frame and is arranged in a trapezoidal shape. Stiffening plates are welded on both sides of the main beam to increase the strength of the main beam.
[0036] A telescopic rod 500 is provided on the upper side of one side of the trolley base 100 for stopping and supporting the trolley base 100. The telescopic rod 500 is threaded into the threaded seat provided on the upper end of the trolley base 100. The telescopic rod 500 is installed against the side of the internal tunnel for supporting the trolley base 100.
[0037] The adjustment unit 300 includes a cylinder 330 for rotating the angle of the corbel template 200. One end of the cylinder 330 is movably mounted on the upper end of the trolley base 100 via a mounting shaft, and the other end is movably mounted on the lower end of the mounting bracket 361 fixedly installed on one side of the corbel template 200 via a mounting shaft. During the casting and shaping process, the shaping angle of the corbel template 200 can be adjusted by the cylinder 330. After shaping, the cylinder 330 retracts and demolds, facilitating the casting process.
[0038] The upper end of the mounting frame 361 is fitted with an extension sleeve 360 that can adjust the height of the corbel template 200. The corbel template 200 is fixedly installed on one side of the extension sleeve 360. A cylinder 340 for adjusting the position of the extension sleeve 360 is movably installed on one side of the extension sleeve 360. One end of the cylinder 340 is connected to one side of the extension sleeve 360 through a pin, and the other end of the cylinder 340 is movably connected to the upper end of the trolley base 100. By extending the cylinder 340, the extension sleeve 360 fixedly installed on one side of the corbel template 200 is lifted upward, thereby adjusting the pouring position. During demolding, the cylinders 330 and 340 retract synchronously to demold the template.
[0039] The lower end of the mounting bracket 361 is mounted on the upper end of the sliding sleeve 310, which is movably mounted on the upper surface of the trolley base 100, via a pin. The lower end of the sliding sleeve 310 is slidably mounted on the upper end of the slide rail 320, which is fixedly mounted on the upper surface of the trolley base 100. A positioning frame is provided on one side of the sliding sleeve 310 for pushing the sliding sleeve 310 to move. One end of the sliding sleeve 310 is mounted to the cylinder 350 to adjust the position of the sliding sleeve 310. Cylinders 330, 340, and 350 are all mounted inside the positioning frame via mounting shafts. The cylinder 350 pushes the sliding sleeve 310 to move on the upper end of the slide rail 320, thereby adjusting the position of the bracket template 200.
[0040] The auxiliary mechanism 400 includes a support wheel 410 for supporting the lower end of the trolley base 100. The support wheel 410 is supported by a bracket 420 installed at the upper end. A cylinder 430 is provided on one side of the bracket 420 for pushing the bracket 420 to move. The cylinder 430 extends to push the support wheel 410 to extend, so that it moves in contact with the inside of the tunnel, making the movement of the trolley base 100 more stable.
[0041] The working principle of a combined corbel trolley: By combining the corbel template 200 and the movable trolley base 100 at the lower end, the problem of corbel pouring in the tunnel lane slab is solved. It changes the traditional method of pouring by supporting the template with disc-lock scaffolding, enhances pouring safety, improves pouring efficiency, and the separately installed corbel trolleys solve the height problem caused by the inconsistent pouring reference surfaces on both sides of the tunnel, thus improving the safety and convenience of on-site construction.
[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A combined bracket trolley, characterized in that, include: A trolley base and a bracket template disposed on one side of the trolley base, wherein an adjustment unit is provided on one side of the bracket template; The trolley base has an electrically controlled walking system at its lower end, and auxiliary mechanisms and auxiliary wheels are respectively installed on both sides of the lower end of the trolley base.
2. The combined bracket trolley according to claim 1, characterized in that, The electric control walking system includes a drive wheel, and the output end of the drive wheel is connected to a geared motor via a transmission belt.
3. The modular corbel trolley as claimed in claim 2, wherein, The trolley base is welded and fixed by a steel frame, and the whole is arranged in a trapezoidal shape. The main beam of the trolley base is welded with stiffening plates on both sides.
4. The combined bracket trolley according to claim 3, characterized in that, A telescopic rod is provided on the upper side of one side of the trolley base, and the telescopic rod is threadedly installed inside the threaded seat provided on the upper side of the trolley base.
5. A combined bracket trolley as claimed in claim 4, wherein, The adjustment unit includes a cylinder, one end of which is movably mounted on the upper end of the trolley base via a mounting shaft, and the other end is movably mounted on the lower end of the mounting bracket fixedly installed on one side of the bracket template via a mounting shaft.
6. A combined bracket trolley as claimed in claim 5, wherein, An extension sleeve is fitted onto the upper end of the mounting frame. The bracket template is fixedly installed on one side of the extension sleeve. A second cylinder is movably installed on one side of the extension sleeve. One end of the second cylinder is connected to one side of the extension sleeve via a pin, and the other end of the second cylinder is movably connected to the upper end of the trolley base.
7. A combined bracket trolley as claimed in claim 6, wherein, The lower end of the mounting bracket is mounted on the upper end of the sliding sleeve via a pin. The lower end of the sliding sleeve is slidably mounted on the upper end of the slide rail fixedly installed on the upper surface of the trolley base. A positioning bracket is provided on one side of the sliding sleeve. One end of the sliding sleeve is mounted to cylinder three. Cylinder one, cylinder two, and cylinder three are all mounted inside the positioning bracket via mounting shafts.
8. The combined bracket trolley according to claim 7, characterized in that, The auxiliary mechanism includes a support wheel for supporting the lower end of the trolley base. The support wheel is supported by a bracket installed at the upper end, and a cylinder is provided on one side of the bracket.