Inner mold sliding device and bridge building machine

Abstract

This application relates to the field of bridge construction equipment technology, specifically to an internal formwork sliding device and a bridge-building machine. The internal formwork sliding device includes guide rails, trolleys, and supporting beams. At least two guide rails are arranged in parallel; each guide rail has at least two trolleys; the supporting beams are mounted on the trolleys and move along the guide rails via the trolleys. The internal formwork sliding device provided by this application retracts the internal formwork to the upper segment, freeing up operating space and allowing the bottom and web reinforcement bars to be hoisted into the formwork as a whole or in sections, avoiding manual insertion of each bar individually. Using this device during construction improves overall efficiency, solves schedule issues, reduces workers' high-intensity work time and fatigue, and reduces the risks of working at heights, ensuring safety.

Description

Technical Field

[0001] This application relates to the field of bridge construction equipment technology, and more specifically, to an internal formwork sliding device and a bridge building machine. Background Technology

[0002] With the continuous development of bridge construction technology, continuous beam cantilever construction has become one of the main methods for constructing long-span bridges. In existing technologies, continuous beam cantilever construction typically uses a hanging basket (bridge-building machine) as the main construction equipment, completing the main structure of the bridge through segmented casting. This construction method effectively reduces the amount of scaffolding required, adapts to complex terrain conditions, and offers good economic efficiency and safety.

[0003] In cantilever construction, the installation of segmental reinforcing bars is a crucial step. Current technology typically employs semi-finished product hoisting, transporting prefabricated reinforcing bar cages or individual bars to the construction site for assembly. However, the complexity of bridge structural design, particularly the presence of the box girder internal formwork system, presents numerous challenges for reinforcing bar installation. The internal formwork system needs to move synchronously with the formwork to ensure the dimensional accuracy of the poured concrete, resulting in significant overlap between the internal formwork and the reinforcing bar installation space.

[0004] In actual construction, due to the space constraints of the internal formwork system, it is difficult to transport semi-finished steel bars directly to the base slab installation location using conventional hoisting equipment. Construction workers have to manually pass the bars one by one to complete the installation. This method is not only labor-intensive and poses numerous safety hazards, but also inefficient. Especially in high-altitude working environments, the confined operating space further exacerbates the difficulties of steel bar installation, severely impacting the overall construction progress. Utility Model Content

[0005] The purpose of this application is to provide an inner mold sliding device and a bridge-building machine, which can retract the inner mold to the upper segment, freeing up operating space, so that the bottom web reinforcement can be hoisted into the mold as a whole or in sections, avoiding manual insertion of each reinforcement, improving work efficiency, and reducing labor intensity and safety risks.

[0006] To achieve the above objectives, in a first aspect, this application provides an internal mold sliding device, comprising: Guide rails, wherein at least two guide rails are arranged in parallel. At least two of the aforementioned trolleys are provided on each guide rail; A support beam is mounted on the trolley and moves on the guide rail via the trolley.

[0007] In an optional implementation, a drive assembly is also included for driving the trolley to move on the guide rail.

[0008] In an optional embodiment, the drive assembly includes a hoist for pulling the trolley or the support beam to move the trolley and the support beam along the guide rail.

[0009] In an optional embodiment, the drive assembly includes a hydraulic cylinder for pushing the trolley or the support beam to move the trolley and the support beam along the guide rail.

[0010] In an optional embodiment, the drive assembly includes a screw jack for pushing the trolley or the support beam to move the trolley and the support beam along the guide rail.

[0011] In an optional embodiment, the guide rail includes a first plate, a second plate, and a third plate. One end of the second plate is vertically connected to the first plate, and the other end of the second plate is vertically connected to the third plate to form an I-shaped guide rail. The first plate, the second plate, and the third plate are distributed sequentially along the direction of gravity. The first plate and the third plate are horizontally arranged, and the second plate is vertically arranged.

[0012] In an optional embodiment, the trolley includes a first fixing plate fixedly connected to the support beam, second fixing plates are installed on both sides of the first fixing plate, a first roller is provided on the second fixing plate, the first roller rolls on the first plate, and the second fixing plate extends toward the third plate.

[0013] In an optional embodiment, the trolley includes a first mounting plate fixedly connected to the support beam, second mounting plates are mounted on both sides of the first mounting plate, and second rollers are provided on the second mounting plates, the second rollers rolling on the third plate.

[0014] In an optional embodiment, a locking assembly is also included, the locking assembly including a locking bolt threaded onto the support beam. Rotating the locking bolt in the forward direction causes the locking bolt to press against the guide rail, thereby locking the support beam to the guide rail.

[0015] Secondly, this application provides a bridge-building machine, such as the inner mold sliding device described in any of the foregoing embodiments.

[0016] In cantilever casting construction, the inner formwork system overlaps with the rebar installation space, making the transportation of semi-finished rebar difficult. The inner formwork sliding device provided in this application retracts the inner formwork to the upper segment, freeing up operating space and allowing the bottom and web rebars to be hoisted into the formwork as a whole or in sections, avoiding manual insertion of each rebar individually. Using this device reduces the installation time of a single rebar segment by 30%-50%, improving overall efficiency and solving schedule issues; it reduces workers' high-intensity work time and fatigue; it reduces the risks of working at heights and ensures safety; it does not require additional equipment investment, relying on the existing inner guide beam, reducing modification costs; and it is easily integrated into existing bridge-building machine platforms, reducing construction interruptions and improving economy and efficiency.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure from one perspective of one embodiment of the internal mold sliding device provided in this application; Figure 2 A two-view structural schematic diagram of one embodiment of the internal mold sliding device provided in this application; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 A schematic diagram of the internal mold sliding device provided in this application from one perspective; Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0020] icon: 100 - Guide rail; 110 - First plate; 120 - Second plate; 130 - Third plate; 200 - Trolley; 210 - First fixed plate; 220 - Second fixed plate; 230 - First roller; 240 - First mounting plate; 250 - Second mounting plate; 260 - Second roller; 300-support beam; 400 - Locking bolt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] like Figure 1 As shown, in a first aspect, embodiments of this application provide an inner mold sliding device, including a guide rail 100, a trolley 200, and a support beam 300.

[0025] At least two guide rails 100 are arranged in parallel. For example, such as... Figure 1 As shown, two guide rails 100 are arranged in parallel. In another embodiment, three guide rails 100 are arranged in parallel. In another embodiment, four guide rails 100 are arranged in parallel. In yet another embodiment, five guide rails 100 are arranged in parallel. Of course, in other embodiments, the number of guide rails 100 can also be other than six or seven. The more guide rails 100 there are, the stronger the load-bearing capacity.

[0026] The two ends of the guide rail 100 are fixedly installed. For example, the two ends of the guide rail 100 are fixedly installed on the frame or fixedly installed between the inner guide beam and the inner formwork truss of the hanging basket. In some cases, the bridge building machine includes a hanging basket, an inner formwork and an inner formwork truss. The inner formwork sliding device provided in this application can be installed in the bridge building machine for moving the inner formwork of the bridge building machine.

[0027] At least two trolleys 200 are provided on each guide rail 100. For example, such as... Figure 1As shown, each guide rail 100 is provided with two trolleys 200. In another embodiment, each guide rail 100 is provided with three trolleys 200; of course, in other embodiments, each guide rail 100 may also be provided with other numbers of trolleys 200, such as four or five, etc.

[0028] The support beam 300 is mounted on the trolley 200 and moves on the guide rail 100 via the trolley 200.

[0029] An inner mold is provided on the support beam 300. The movement of the support beam 300 causes the inner mold to move.

[0030] During use, after the hanging basket moves to the correct position, the pulley 200 drives the support beam 300 and the inner formwork to move to the position of the previous segment. First, the bottom plate and web reinforcement are installed. After the installation is completed, the pulley 200 drives the support beam 300 and the inner formwork to move to the construction segment position. This avoids the impact of limited space for hoisting and installing reinforcement, greatly shortens the segment reinforcement installation time, and significantly improves construction efficiency.

[0031] The aforementioned hanging basket, inner formwork, inner formwork truss, bottom plate web reinforcement, etc., can all be implemented using existing technologies, and will not be elaborated here.

[0032] In cantilever casting construction, the internal formwork system and the reinforcement installation space severely overlap, making it difficult to transport semi-finished reinforcement to the installation position using conventional hoisting equipment. The internal formwork sliding device of this application temporarily retracts the internal formwork sliding device to the previous segment, releasing the operating space of the current segment. This allows the bottom and web reinforcement to be hoisted into the formwork as a whole or in sections using hoisting equipment (such as a crane), avoiding the traditional method of manually inserting each reinforcement one by one.

[0033] Using the internal formwork sliding device provided in this application, the installation time of a single segment of steel reinforcement can be shortened by 30%-50%, which speeds up the installation time of segmented steel reinforcement, significantly improves the overall construction efficiency, and effectively solves the problem that the difficulty in steel reinforcement installation seriously affects the overall construction progress.

[0034] Traditional rebar installation methods are limited by space, forcing construction workers to manually pass rebar one by one, which is labor-intensive and poses many safety hazards. Using the internal formwork sliding device provided in this application can reduce the time workers spend in confined spaces working at high intensity, thus reducing worker fatigue caused by prolonged high-intensity work.

[0035] Working at heights in confined spaces exacerbates the difficulties and dangers of rebar installation. This device makes the rebar installation process safer, reducing risks such as falls from heights and mechanical injuries, and ensuring the personal safety of construction workers.

[0036] Construction using the internal mold sliding device provided in the embodiments of this application requires no additional equipment investment. The internal mold sliding device relies on the existing internal guide beam as the track, only requiring the addition of trolleys 200, support beams 300, etc., making full use of existing resources, avoiding large-scale equipment purchase and installation, and reducing modification costs.

[0037] This device is easy to integrate on existing bridge-building machine platforms without requiring large-scale modifications and adjustments to existing bridge-building machines. It can be quickly applied to actual construction, reducing construction interruption time caused by modifying construction equipment and further improving the economy and efficiency of construction.

[0038] To facilitate the movement of the trolley 200, in one embodiment, the inner mold sliding device further includes a driving component for driving the trolley 200 to reciprocate on the guide rail 100.

[0039] The drive assembly provides the power source for the reciprocating movement of the trolley 200 on the guide rail 100. In the cantilever casting construction scenario, the inner formwork needs to move on the guide rail 100 according to the construction progress. The drive assembly can precisely drive the trolley 200 to move, thereby driving the support beam 300 and the inner formwork to the designated position, ensuring that the inner formwork sliding device can operate normally according to the construction requirements and meet the needs of adjusting the position of the inner formwork in the construction process.

[0040] In one embodiment, the drive assembly includes a hoist connected to a trolley 200, which is used to pull the trolley 200 to move the trolley 200 and the support beam 300 along the guide rail 100.

[0041] For example, a hoist can be provided in the forward direction and the reverse direction of the trolley 200 to drive the trolley 200 to move back and forth on the guide rail 100.

[0042] In another embodiment, a hoist is connected to a support beam 300, and the hoist is used to pull the support beam 300 so that the trolley 200 and the support beam 300 can move along the guide rail 100.

[0043] For example, a hoist can be installed in the forward direction and the reverse direction of the support beam 300 to drive the support beam 300 to reciprocate on the guide rail 100.

[0044] The hoist is, for example, an electric hoist or a manual hoist.

[0045] Unlike the above embodiment where the drive assembly includes a hoist, in another embodiment, the drive assembly includes a hydraulic cylinder for pushing the trolley 200 so that the trolley 200 and the support beam 300 move along the guide rail 100.

[0046] For example, a hydraulic cylinder can be provided in the forward direction and the reverse direction of the trolley 200 to drive the trolley 200 to reciprocate on the guide rail 100.

[0047] In another embodiment, the drive assembly includes a hydraulic cylinder for pushing the support beam 300 to move the trolley 200 and the support beam 300 along the guide rail 100.

[0048] For example, a hydraulic cylinder can be provided in the forward direction and the reverse direction of the support beam 300 to drive the support beam 300 to reciprocate on the guide rail 100.

[0049] Unlike the above embodiment where the driving component includes a hoist, in another embodiment, the driving component includes a screw jack, which is used to push the trolley 200 so that the trolley 200 and the support beam 300 move along the guide rail 100.

[0050] In another embodiment, a screw jack is used to push the support beam 300 so that the trolley 200 and the support beam 300 can move along the guide rail 100.

[0051] like Figure 2 As shown, in one embodiment, the guide rail 100 includes a first plate 110, a second plate 120 and a third plate 130. One end of the second plate 120 is perpendicularly connected to the first plate 110, and the other end of the second plate 120 is perpendicularly connected to the third plate 130 to form an I-shaped guide rail 100. The connection method of the first plate 110, the second plate 120 and the third plate 130 is, for example, welding or integral molding.

[0052] The first plate 110, the second plate 120, and the third plate 130 are distributed sequentially along the direction of gravity. The first plate 110 and the third plate 130 are set horizontally, and the second plate 120 is set vertically.

[0053] The guide rail 100, formed by vertically connecting the first plate 110, the second plate 120, and the third plate 130 to form an I-beam structure, possesses excellent mechanical stability. The I-beam shape effectively distributes and bears the weight from components such as the trolley 200, the support beam 300, and the inner formwork, as well as various loads during construction. The first plate 110 and the third plate 130 are horizontally positioned, while the second plate 120 is vertically positioned. These three components work together to provide excellent support in both vertical and horizontal directions, significantly enhancing the overall load-bearing capacity of the guide rail 100. This allows it to adapt to the large weight and complex stress conditions borne by the inner formwork sliding device during bridge construction, ensuring construction safety.

[0054] like Figure 4 and Figure 5As shown, in one embodiment, the trolley 200 includes a first fixing plate 210 that is fixedly connected to the support beam 300, and second fixing plates 220 are installed on both sides of the first fixing plate 210. The connection method of the first fixing plate 210 and the second fixing plate 220 is, for example, welding, snap-fitting, bolting, or integral molding.

[0055] The second fixed plate 220 is equipped with a first roller 230, which rolls on the first plate 110. The second fixed plate 220 extends towards the third plate 130, and the extended portion of the second fixed plate 220 contacts the first plate 110, forming an effective anti-tipping structure. During the movement of the trolley 200, when subjected to lateral forces, this structure can limit the lateral displacement of the trolley 200 and prevent it from tipping over. For example, in situations such as uneven guide rail 100 or construction vibrations, this anti-tipping design can provide additional stability for the trolley 200, ensuring the safety of construction personnel and equipment.

[0056] Bridge construction sites are complex environments with various uncertainties and potential safety hazards. The anti-rollover design of the pulley 200 allows it to better adapt to this complex construction environment, maintaining stable operation under various working conditions. This reduces construction interruptions and safety accidents caused by pulley 200 rollover, thus improving the safety and reliability of construction.

[0057] For example, a reinforcing rib is fixedly connected between the first fixing plate 210 and the second fixing plate 220.

[0058] Unlike the technical solution in the above embodiment where the trolley 200 includes a first fixed plate 210, a second fixed plate 220, and a first roller 230, as shown in the example... Figure 2 and Figure 3 As shown, in another embodiment, the trolley 200 includes a first mounting plate 240 that is fixedly connected to the support beam 300, and second mounting plates 250 are mounted on both sides of the first mounting plate 240. The connection method of the first mounting plate 240 and the second mounting plate 250 is, for example, welding, snap-fitting, bolting, or integral molding.

[0059] A second roller 260 is provided on the second mounting plate 250. The second roller 260 rolls on the third plate 130. At the same time, the inner wall of the second mounting plate 250 is in contact with the first plate 110, forming an effective anti-rollover structure. Compared with the first roller 230 being mounted on the first plate 110, the second roller 260 in this embodiment is located on the third plate 130, resulting in a lower center of gravity and greater stability. Furthermore, the second mounting plate 250 can provide greater anti-rollover protection.

[0060] For example, a reinforcing rib is fixedly connected between the first mounting plate 240 and the second mounting plate 250.

[0061] like Figure 3 As shown, in one embodiment, the inner mold sliding device further includes a locking assembly, which includes a locking bolt 400 threaded onto the support beam 300. Rotating the locking bolt 400 in the forward direction causes it to move axially and approach the first plate 110 of the guide rail 100, thereby locking the support beam 300 to the guide rail 100. Rotating the locking bolt 400 in the reverse direction causes it to move axially away from the first plate 110 of the guide rail 100, disengaging it from the first plate 110 and releasing the support beam 300 from the guide rail 100. This allows the trolley 200 and the guide rail 100 to reciprocate along the direction of the guide rail 100.

[0062] Secondly, embodiments of this application also provide a bridge-building machine, including the inner mold sliding device in any of the above embodiments. It should be understood that the bridge-building machine also includes other auxiliary structures, such as hanging baskets, inner molds, inner mold trusses, bottom plate and web reinforcement, etc. The hanging baskets, inner molds, inner mold trusses, bottom plate and web reinforcement, etc., can all be implemented using existing technologies, and will not be described in detail here.

[0063] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An inner mold slip device characterized by, include: Guide rail (100), wherein at least two guide rails (100) are arranged in parallel; At least two of the trolleys (200) are provided on each guide rail (100); A support beam (300) is mounted on a trolley (200) and moves on a guide rail (100) via the trolley (200).

2. The inner mold sliding device according to claim 1, characterized in that, It also includes a drive assembly for driving the trolley (200) to move on the guide rail (100).

3. The inner mold sliding device according to claim 2, characterized in that, The drive assembly includes a hoist for pulling the trolley (200) or the support beam (300) to move the trolley (200) and the support beam (300) along the guide rail (100).

4. The inner mold sliding device according to claim 2, characterized in that, The drive assembly includes a hydraulic cylinder for pushing the trolley (200) or the support beam (300) to move the trolley (200) and the support beam (300) along the guide rail (100).

5. The inner mold sliding device according to claim 2, characterized in that, The drive assembly includes a screw jack for pushing the trolley (200) or the support beam (300) to move the trolley (200) and the support beam (300) along the guide rail (100).

6. The inner mold sliding device according to claim 1, characterized in that, The guide rail (100) includes a first plate (110), a second plate (120) and a third plate (130). One end of the second plate (120) is vertically connected to the first plate (110), and the other end of the second plate (120) is vertically connected to the third plate (130) to form an I-shaped guide rail (100). The first plate (110), the second plate (120) and the third plate (130) are distributed sequentially along the direction of gravity. The first plate (110) and the third plate (130) are horizontally arranged, and the second plate (120) is vertically arranged.

7. The inner mold sliding device according to claim 6, characterized in that, The trolley (200) includes a first fixing plate (210) fixedly connected to the support beam (300), and second fixing plates (220) are installed on both sides of the first fixing plate (210). A first roller (230) is provided on the second fixing plate (220), and the first roller (230) rolls on the first plate (110). The second fixing plate (220) extends toward the third plate (130).

8. The inner mold sliding device according to claim 6, characterized in that, The trolley (200) includes a first mounting plate (240) fixedly connected to the support beam (300), and second mounting plates (250) are mounted on both sides of the first mounting plate (240). A second roller (260) is provided on the second mounting plate (250), and the second roller (260) rolls on the third plate (130).

9. The inner mold sliding device according to claim 1, characterized in that, It also includes a locking assembly, which includes a locking bolt (400) threaded onto the support beam (300). Rotating the locking bolt (400) in the forward direction causes the locking bolt (400) to press against the guide rail (100), thereby locking the support beam (300) to the guide rail (100).

10. A bridge-building machine, characterized in that, The inner mold sliding device as described in any one of claims 1 to 9.

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