Automatic beam surface leveling device for movable formwork

Abstract

The utility model relates to the technical field of construction equipment, in particular to an automatic leveling device for a beam surface of a movable formwork, which comprises a leveling mechanism comprising a long frame, the bottom of the long frame is provided with a leveling part used for leveling the concrete beam surface, and the long frame is further provided with a vibration assembly so as to drive the long frame to vibrate during operation; the moving mechanism comprises rolling wheels, a guide rail and a driving assembly, the rolling wheels are arranged at the two ends of the long frame respectively, the guide rail is arranged above the concrete beam surface in a suspended mode so as to be matched with the rolling wheels to support the long frame, and the rolling wheels are in transmission fit with the driving assembly so that the rolling wheels can move along the guide rail under driving of the driving assembly. According to the scheme, the defects that in the prior art, the construction speed is low, the labor cost is high, and the beam surface flatness is poor are overcome, and the efficient, low-cost and high-precision beam surface leveling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, in particular to an automatic leveling device for a movable formwork beam surface. Background Art

[0002] With the rapid expansion of high-speed railway networks, the quality and construction efficiency of box girder bridges, a critical piece of infrastructure, are becoming increasingly important. In particular, during the construction of double-track box girders, the traditional mobile formwork method, which involves manually leveling the concrete beam surface, has gradually exposed its limitations.

[0003] First, due to the need to level concrete block by block, traditional methods are far from sufficient to keep pace with the schedules of modern large-scale projects. Second, the reliance on extensive manpower not only increases project labor costs but also presents challenges with personnel management and safety risks. Finally, the instability of manual operations leads to poor beam surface flatness, which directly impacts the overall performance of the bridge structure, including its load capacity and durability. Utility Model Content

[0004] The utility model provides an automatic leveling device for a movable formwork beam surface, which is used to solve the defects of the prior art such as slow construction speed, high labor cost and poor beam surface flatness, and achieves an efficient, low-cost and high-precision beam surface leveling effect.

[0005] The utility model provides an automatic leveling device for a movable formwork beam surface, comprising: a leveling mechanism, comprising an elongated frame, a leveling portion for leveling a concrete beam surface is provided at the bottom of the elongated frame, and the elongated frame is further provided with a vibration component to drive the elongated frame to vibrate during operation; a moving mechanism, comprising rollers, guide rails and a drive component, the rollers are respectively provided at both ends of the elongated frame, the guide rails are suspended above the concrete beam surface to cooperate with the rollers for supporting the elongated frame, and the roller transmission is coordinated with the drive component so that the rollers can move along the guide rails under the drive of the drive component.

[0006] According to an automatic leveling device for a movable formwork beam surface provided by the utility model, the vibration component includes an eccentric rotating shaft and an engine; the eccentric rotating shaft is rotatably arranged in the elongated frame, and the engine is arranged on the elongated frame and cooperates with the eccentric rotating shaft in transmission, and the engine can drive the eccentric rotating shaft to rotate to generate vibration.

[0007] According to the automatic leveling device for the surface of a movable formwork beam provided by the utility model, one or more eccentric blocks are detachably mounted on the eccentric rotating shaft.

[0008] According to an automatic leveling device for a movable formwork beam surface provided by the utility model, the elongated frame includes a bottom truss and a top crossbeam; the bottom truss is horizontally arranged, the top crossbeam is located above the bottom truss, and a plurality of support rods are respectively connected between the top crossbeam and the two long side structures of the bottom truss.

[0009] According to the automatic leveling device for the surface of a movable formwork beam provided by the utility model, the leveling portion includes two long angle irons arranged in parallel, and the two long angle irons are respectively used as the two long side structures of the bottom truss.

[0010] According to the automatic leveling device for the surface of a movable formwork beam provided by the utility model, the roller has an annular groove adapted to the guide rail in the circumferential direction; when the roller is fitted with the guide rail, the guide rail is embedded in the annular groove.

[0011] According to the automatic leveling device for the surface of a movable formwork beam provided by the utility model, the driving component includes an electric motor for providing driving force for the roller; or the driving component includes a hand crank for providing driving force for the roller by shaking the hand crank.

[0012] According to the utility model, a mobile formwork beam surface automatic leveling device is provided, which includes hangers arranged on both sides of the concrete beam surface, and bull foot brackets arranged on the hangers; the bull foot brackets face the side of the concrete beam surface, and the guide rails are mounted on the bull foot brackets to be fixed above the concrete beam surface through the bull foot brackets.

[0013] According to the automatic leveling device for the movable formwork beam surface provided by the utility model, the bull foot bracket is provided with a limiting slot adapted to the bottom of the guide rail; and / or the bull foot bracket is fixed to the guide rail by bolts.

[0014] According to an automatic leveling device for a movable formwork beam surface provided by the utility model, the hanger is provided with a threaded structure; a coarse adjustment nut adapted to the hanger is fixedly provided on the top of the bull foot bracket; a collar structure sleeved on the hanger is provided at the bottom of the bull foot bracket, and a fine adjustment nut is provided on the hanger below the collar structure.

[0015] This utility model provides a mobile formwork beam surface automatic leveling device that combines an automated leveling mechanism with a mobile mechanism, utilizing a vibration component to improve the density and flatness of concrete. Furthermore, a roller and guide rail system achieves stable and efficient surface coverage. Consequently, this mobile formwork beam surface automatic leveling device achieves efficient, low-cost, and high-precision beam surface leveling, significantly improving construction speed and project quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a three-dimensional structural diagram of the automatic leveling device for the movable formwork beam surface provided by the utility model.

[0018] Figure 2 yes Figure 1 A partial enlarged view of .

[0019] Figure 3 It is a front structural schematic diagram of the automatic leveling device for the movable formwork beam surface provided by the utility model.

[0020] Figure 4 yes Figure 3 A partial enlarged view of .

[0021] Reference numerals:

[0022] 10. Long frame; 11. Eccentric shaft; 12. Engine; 13. Bottom truss; 131. Long angle iron; 14. Top crossbeam; 15. Support rod; 21. Roller; 211. Annular groove; 22. Guide rail; 23. Hand crank; 31. Hanging rod; 311. Fine adjustment nut; 32. Cauldron bracket; 321. Limit slot; 322. Coarse adjustment nut; 323. Ring structure. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] The utility model provides a mobile formwork beam surface automatic leveling device, which replaces manual labor to level the beam surface by pouring concrete, thereby increasing the concrete pouring speed, improving work efficiency, saving labor, and ensuring the flatness of the beam surface. Figure 1-Figure 4 The specific implementation of the automatic leveling device for the movable formwork beam surface of the utility model is described.

[0026] like Figure 1 and Figure 3 As shown, the utility model provides an automatic leveling device for a mobile formwork beam surface, comprising: a leveling mechanism including an elongated frame 10, a leveling portion for leveling the concrete beam surface provided at the bottom of the elongated frame 10, and a vibration assembly to drive the elongated frame 10 to vibrate during operation; a moving mechanism including rollers 21, guide rails 22, and a drive assembly. The rollers 21 are respectively provided at both ends of the elongated frame 10, and the guide rails 22 are suspended above the concrete beam surface to cooperate with the rollers 21 to support the elongated frame 10. The rollers 21 are driven by the drive assembly so that the rollers 21 can move along the guide rails 22 under the drive of the drive assembly. By combining the automated leveling mechanism and the moving mechanism, efficient and uniform leveling of the concrete beam surface is achieved.

[0027] Specifically, the bottom of the elongated frame 10 is provided with a leveling portion that can directly contact and act on the concrete surface. At the same time, the vibration component installed on the frame can generate vibration when the equipment is in operation. The vibration helps to distribute the concrete material more evenly, helps to eliminate bubbles in the concrete, and improves the density and flatness. The moving mechanism consists of rollers 21, guide rails 22 and a drive component. The rollers 21 are installed at both ends of the elongated frame 10 and cooperate with the guide rails 22 fixed above to form a support system. The drive component is responsible for providing power. By controlling the movement of the rollers 21 along the guide rails 22, the leveling mechanism can move smoothly along the predetermined path to complete the leveling operation of the entire beam surface. The device realizes automated operation and significantly improves construction speed and quality. Compared with traditional manual leveling methods, it reduces dependence on manpower, reduces labor intensity and costs, and also greatly improves the flatness of the beam surface due to the precise control of mechanization, thereby ensuring the safety and service life of the bridge.

[0028] like Figure 2 As shown, according to an automatic leveling device for a mobile formwork beam surface provided by the present invention, the vibration component includes an eccentric shaft 11 and an engine 12; the eccentric shaft 11 is rotatably arranged in an elongated frame 10, and the engine 12 is arranged on the elongated frame 10 and is in transmission cooperation with the eccentric shaft 11, and the engine 12 can drive the eccentric shaft 11 to rotate to generate vibration. Particularly, due to the unbalanced design of the shaft, centrifugal force is generated during rotation, thereby causing the components connected thereto to vibrate. The engine 12 provides rotational power for the eccentric shaft 11, and through transmission cooperation with the eccentric shaft 11, the engine 12 can drive the eccentric shaft 11 to rotate after being started. The engine 12 is preferably a gasoline engine 12.

[0029] When the motor 12 is operating, it drives the eccentric shaft 11 to rotate. Due to the unbalanced nature of the eccentric shaft 11, its rotation generates periodic centrifugal force, causing the elongated frame 10 to vibrate. This vibration is transmitted to the leveling part, which effectively promotes the flow of concrete material when it contacts the concrete surface, helps to expel air, and improves the density and flatness of the concrete layer.

[0030] Furthermore, according to an automatic leveling device for a movable formwork beam surface provided by the utility model, one or more eccentric blocks are detachably mounted on the eccentric shaft 11. The function of the eccentric blocks is to adjust the intensity and frequency of vibration by changing their number or position. The eccentric blocks are mounted on the eccentric shaft 11, and when the shaft rotates, the centrifugal force generated causes the entire frame to vibrate. The detachable design of the eccentric blocks can increase or decrease the number of eccentric blocks or adjust their positions according to actual construction requirements, such as different concrete types or specific construction environments, thereby optimizing the vibration effect.

[0031] like Figure 1 and Figure 2 As shown, according to the present invention, an automatic leveling device for a mobile formwork beam surface is provided. An elongated frame 10 includes a bottom truss 13 and a top crossbeam 14. The bottom truss 13 is arranged horizontally, and the top crossbeam 14 is located above the bottom truss 13. Multiple support rods 15 are connected between the top crossbeam 14 and the two long sides of the bottom truss 13. The design of the elongated frame 10 adopts a combined structure of the bottom truss 13 and the top crossbeam 14, which enhances the stability and strength of the overall structure.

[0032] Specifically, the bottom truss 13 is horizontally arranged and primarily serves to support the leveling section, enabling it to directly apply to the concrete surface. The bottom truss 13 is typically designed to be sturdy and rigid enough to prevent deformation or bending during the leveling process. The top crossbeam 14 is located above and parallel to the bottom truss 13. The top crossbeam 14 not only provides additional structural support but also serves as a mounting base for other components, such as the vibration assembly and the mobile mechanism. Multiple support rods 15 are connected to the long sides of the top crossbeam 14 and the bottom truss 13, providing reinforcement and ensuring the stability of the entire frame during operation. The support rods 15 can be evenly spaced or optimized based on force analysis, such as being connected at an angle to achieve the optimal structural strength-to-weight ratio. This structure ensures that the elongated frame 10 not only has sufficient rigidity to withstand the various loads encountered during construction, but also ensures the precision and quality of the leveling work. Furthermore, the stable frame structure provides a reliable mounting base for other functional components, ensuring the reliable operation of the entire system under complex construction conditions.

[0033] According to the automatic leveling device for the surface of a movable formwork beam provided by the present invention, the leveling portion can be designed as a flat plate structure installed below the bottom truss 13, so that it can directly contact and level the concrete surface. Figure 2 As shown, the present invention provides an automatic leveling device for a mobile formwork beam surface. The leveling portion comprises two parallel, elongated angle irons 131, which serve as the two long sides of the bottom truss 13. These two elongated angle irons 131 serve as both the leveling portion and a part of the bottom truss 13. This integrated design simplifies the overall structure and reduces weight while ensuring sufficient strength and rigidity. The bottom surface of the angle irons serves as a reference surface, ensuring uniform leveling of the concrete surface during movement.

[0034] like Figure 3As shown, according to the present invention, a mobile formwork beam surface automatic leveling device is provided. The roller 21 has an annular groove 211 circumferentially adapted to the guide rail 22. When the roller 21 is engaged with the guide rail 22, the guide rail 22 fits within the annular groove 211. The annular groove 211 circumferentially matches the shape of the guide rail 22, allowing the guide rail 22 to fit within the groove as the roller 21 rotates, forming a nested fit. This nested design effectively prevents lateral deviation or shaking of the roller 21 during movement, improving the straightness and stability of the movement. Furthermore, the annular groove 211 provides a good guide, ensuring that the roller 21 moves smoothly along the predetermined path of the guide rail 22. It is understood that to enhance the stability of the mobile formwork beam surface automatic leveling device and prevent it from tipping over or shaking during operation, multiple rollers 21 may be positioned side by side at each end of the elongated frame 10. Arranging multiple rollers 21 side by side can increase the contact area with the guide rail 22, thereby providing greater supporting force. In addition, multiple rollers 21 can more evenly distribute the weight of the entire device, reduce the pressure on a single roller 21, and reduce the risk of deviation from the track, thereby ensuring the accuracy of the leveling work.

[0035] According to the automatic leveling device for the mobile formwork beam surface provided by the utility model, the driving component includes an electric motor for providing driving force for the roller 21. The electric motor can provide continuous and controllable power output, which is suitable for large-scale and long-term construction operations. The electric motor can accurately control the moving speed, improve construction efficiency, reduce manpower requirements, and reduce labor intensity. Or Figure 2 and Figure 4 As shown, the drive assembly includes a hand crank 23, which provides driving force for the roller 21 by cranking the hand crank 23. This is suitable for situations where power is inconvenient or precise control of movement distance and speed is required. Although manual cranking may not be as efficient as an electric motor, it provides a more flexible operation method, especially for small-scale adjustments or under specific conditions. It is understood that the motor or hand crank 23 can transmit motion to the roller 21 through a transmission method such as a gear drive or chain drive.

[0036] The choice between these two drive components can be determined based on the actual construction environment and requirements. Electric motor drive is suitable for applications requiring high efficiency and a high degree of automation, while manual rocker 23 drive provides the operator with more manual control options, making it suitable for applications requiring precise operation or specific environments. By selecting the appropriate drive mode, the mobile formwork beam surface automatic leveling device can better adapt to different construction conditions and meet diverse needs.

[0037] like Figure 1 、 Figure 3 and Figure 4As shown, according to the present invention, a mobile formwork beam surface automatic leveling device includes a hanger 31 arranged on both sides of the concrete beam surface, and a bull foot bracket 32 ​​arranged on the hanger 31; the bull foot bracket 32 ​​faces the side of the concrete beam surface, and the guide rail 22 is mounted on the bull foot bracket 32 ​​to be fixed above the concrete beam surface through the bull foot bracket 32. Among them, the hanger 31 is installed on both sides of the concrete beam surface, and is usually pre-buried in the beam body or fixed by other means to ensure sufficient supporting force. The bull foot bracket 32 ​​is installed on the hanger 31 and faces one side of the concrete beam surface. The guide rail 22 is supported and fixed by the bull foot bracket 32 ​​to ensure that the guide rail 22 can be firmly mounted above the concrete beam surface. The shape of the bull foot bracket 32 ​​is usually designed to be similar to an "L" shape or other forms that can provide good support to ensure the stability of the guide rail 22 and the smooth operation of the leveling device.

[0038] To ensure the stability and reliability of the guide rail 22 during use, the present invention provides a mobile formwork beam surface automatic leveling device. The foot bracket 32 ​​is provided with a retaining slot 321 that adapts to the bottom of the guide rail 22; and / or the foot bracket 32 ​​is secured to the guide rail 22 via bolts. The retaining slot 321 allows the guide rail 22 to be inserted into the foot bracket 32, forming a relatively strong mechanical connection. This helps limit the lateral movement of the guide rail 22, ensuring that the guide rail 22 does not easily shift or loosen during use, thereby ensuring the stability and accuracy of the leveling device during movement. Alternatively, the foot bracket 32 ​​can be connected to the guide rail 22 via bolts. This not only provides additional mechanical fixation but also further strengthens the connection between the guide rail 22 and the foot bracket 32. Furthermore, bolted fastening facilitates on-site adjustment and maintenance and can withstand significant torque, ensuring the structural strength of the entire system.

[0039] According to the present invention, a mobile formwork beam surface automatic leveling device comprises a hanger rod 31 with a threaded structure. A coarse adjustment nut 322 adapted to the hanger rod 31 is fixedly mounted on the top of the foot support 32. A collar structure 323 is mounted on the bottom of the foot support 32, which fits over the hanger rod 31. Below the collar structure 323, a fine adjustment nut 311 is mounted on the hanger rod 31. This structure allows the foot support 32 to be adjusted vertically. The hanger rod 31, which serves as the supporting framework of the entire system, is threaded. A coarse adjustment nut 322 adapted to the hanger rod 31 is fixedly mounted on the top of the foot support 32. The coarse adjustment nut 322 provides preliminary height adjustment. By tightening or loosening the coarse adjustment nut 322, the vertical position of the foot support 32 can be adjusted significantly, allowing the foot support 32 to be quickly positioned to the desired height. A collar structure 323 is mounted on the bottom of the foot support 32, which fits over the hanger rod 31 and can slide up and down along the hanger rod 31. Below the collar structure 323 , a fine-adjustment nut 311 is provided on the suspension rod 31 for fine-tuning the position of the bull foot bracket 32 ​​to ensure that the distance between the bull foot bracket 32 ​​and the concrete beam surface meets the construction requirements.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or modes and features of different embodiments or modes described in this specification without contradiction.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mobile formwork beam surface automatic leveling device, characterized in that: include: A leveling mechanism comprises an elongated frame (10), wherein a leveling portion for leveling a concrete beam surface is provided at the bottom of the elongated frame (10), and the elongated frame (10) is further provided with a vibration assembly to drive the elongated frame (10) to vibrate during operation; A moving mechanism comprises a roller (21), a guide rail (22) and a driving assembly, wherein the rollers (21) are respectively arranged at both ends of the elongated frame (10), the guide rail (22) is suspended above the concrete beam surface to cooperate with the rollers (21) for supporting the elongated frame (10), and the rollers (21) are driven by the driving assembly so that the rollers (21) can move along the guide rails (22) under the drive of the driving assembly; The vibration assembly comprises an eccentric rotating shaft (11) and a motor (12), wherein the eccentric rotating shaft (11) is rotatably arranged in the elongated frame (10), and the motor (12) is capable of driving the eccentric rotating shaft (11) to rotate to generate vibration, and one or more eccentric blocks are detachably mounted on the eccentric rotating shaft (11); The device comprises a suspension rod (31) arranged on both sides of the concrete beam surface, and a bull foot bracket (32) arranged on the suspension rod (31), wherein the bull foot bracket (32) faces one side of the concrete beam surface, and the guide rail (22) is mounted on the bull foot bracket (32) to be fixed above the concrete beam surface through the bull foot bracket (32); the suspension rod (31) is provided with a threaded structure, and a coarse adjustment nut (322) adapted to the suspension rod (31) is fixedly provided on the top of the bull foot bracket (32), and a collar structure (323) sleeved on the suspension rod (31) is provided at the bottom of the collar structure (323), and a fine adjustment nut (311) is provided on the suspension rod (31) below the collar structure (323).

2. The automatic leveling device for the movable formwork beam surface according to claim 1, characterized in that: The engine (12) is arranged on the elongated frame (10) and is in driving cooperation with the eccentric rotating shaft (11).

3. The automatic leveling device for the movable formwork beam surface according to claim 1, characterized in that: The elongated frame (10) comprises a bottom truss (13) and a top crossbeam (14); The bottom truss (13) is arranged horizontally, the top crossbeam (14) is located above the bottom truss (13), and a plurality of support rods (15) are respectively connected between the top crossbeam (14) and the two long side structures of the bottom truss (13).

4. The automatic leveling device for the movable formwork beam surface according to claim 3 is characterized in that: The leveling portion comprises two long angle irons (131) arranged in parallel, and the two long angle irons (131) are respectively used as the two long side structures of the bottom truss (13).

5. The automatic leveling device for the movable formwork beam surface according to claim 1, characterized in that: The roller (21) has an annular groove (211) in the circumferential direction thereof adapted to the guide rail (22); When the roller (21) is matched with the guide rail (22), the guide rail (22) is embedded in the annular groove (211).

6. The automatic leveling device for the movable formwork beam surface according to claim 1, characterized in that: The driving assembly includes a motor for providing driving force for the roller (21); Alternatively, the driving assembly includes a hand crank (23), and driving force is provided to the roller (21) by shaking the hand crank (23).

7. The automatic leveling device for the movable formwork beam surface according to any one of claims 1 to 6, characterized in that: The cattle foot bracket (32) is provided with a limiting slot (321) adapted to the bottom of the guide rail (22); And / or, the cow foot bracket (32) and the guide rail (22) are fixed by bolts.

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