A fast-moving hanging basket device for bridge cantilever pouring construction

Abstract

The scheme discloses a quick moving hanging basket device for bridge cantilever pouring construction, which comprises a bearing frame arranged above a bridge in a transverse direction of a bridge deck; a clamping mechanism arranged on the transverse two ends of the bearing frame respectively and used for clamping and fixing on side walls of the bridge; a hanging basket hung on the bearing frame and used for pouring and formwork; a displacement mechanism arranged at the bottom of the bearing frame and used for driving the bearing frame to walk and displace on the bridge deck; and a guide mechanism arranged at the transverse two ends of the bearing frame and used for contacting the side walls of the bridge to guide the displacement of the bearing frame in a length direction of the bridge. The quick movement can be realized during construction, and the overall construction period is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge construction equipment, specifically relating to a fast-moving hanging basket device for cantilever bridge construction. Background Technology

[0002] Cantilever casting is one of the main methods for constructing long-span bridges. The formwork, as its core equipment, needs to be moved along the already cast bridge deck to the next segment after the completion of one segment's casting. Traditional formwork methods suffer from slow movement speed and difficulty in positioning and adjustment. Generally, sleepers are first laid on the bridge deck for support, then a guide rail is placed and anchored by drilling and nailing. This method is cumbersome and causes significant local stress on the bridge deck. When it's time to cantilever cast the next bridge segment, the above process must be repeated on the bridge deck to install a new guide rail, then the support frame is moved to the new guide rail, and finally the original guide rail and sleepers are removed. The entire operation is extremely time-consuming and labor-intensive.

[0003] Therefore, there is an urgent need for an automated hanging basket device that can achieve rapid movement. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a rapidly moving hanging basket device for cantilever bridge construction, which can move quickly during construction, significantly reducing the overall construction cycle.

[0005] The technical solution of this utility model is as follows:

[0006] A rapid-moving formwork device for cantilever bridge construction includes:

[0007] The support frame is installed across the bridge, spanning the width of the bridge deck.

[0008] Clamping mechanisms are respectively installed at both ends of the bearing frame in the lateral direction and are used to clamp and fix the bearings to the side walls of the bridge.

[0009] The hanging basket is suspended on the support frame and used for casting formwork.

[0010] A displacement mechanism is installed at the bottom of the support frame to drive the support frame to move and displace on the bridge surface;

[0011] A guiding mechanism is provided at both ends of the bearing frame in the lateral direction and is used to contact the side wall of the bridge to guide the displacement of the bearing frame along the length of the bridge.

[0012] In some specific embodiments, the supporting mechanism includes:

[0013] The mounting base is located at the bottom of the support frame;

[0014] The telescopic mechanism has a fixed part mounted on the mounting base and a clamping plate mounted on the movable part of the telescopic mechanism, which is located below the bridge. The telescopic mechanism drives the clamping plate to move up and down to clamp or disengage from the bridge.

[0015] In some specific embodiments, the support frame includes a crossbeam that spans across the width of the bridge deck, with both ends of the crossbeam extending beyond the outer side of the bridge deck. The mounting base is guided and slidably disposed on the crossbeam. The clamping mechanism is adjustable relative to the bridge spacing along the length of the crossbeam.

[0016] In some specific embodiments, a movable sleeve is movably fitted on the cantilever section of the crossbeam, the mounting seat is disposed on the movable sleeve, and a push-pull mechanism is provided on the crossbeam corresponding to the movable sleeve. The movable end of the push-pull mechanism is connected to the movable sleeve, and the push-pull mechanism drives the movable sleeve to adjust its displacement on the crossbeam.

[0017] In some specific embodiments, the bottom of the support frame is also provided with a movable support, which is movable and adjustable on the support frame in the length direction of the bridge, and the movable support includes a counterweight placement position for placing a counterweight block; the position of the movable support is adjusted to change the position of the counterweight's center of gravity.

[0018] In some specific embodiments, the movable support includes at least one set of movable longitudinal beams arranged along the width direction of the bridge deck, the movable longitudinal beams are arranged along the length direction of the bridge, the bottom of the support frame is provided with a guide support, and the movable longitudinal beams are guided and adjusted on the guide support.

[0019] In some specific embodiments, the guide support is provided with a locking element.

[0020] In some specific embodiments, the displacement mechanism is located at the bottom of the movable longitudinal beam.

[0021] In some specific embodiments, the guiding mechanism includes a fixed seat and a guide wheel. The fixed seat is fixedly disposed on the side of the clamping mechanism facing the side wall of the bridge, and the guide wheel is rotatably disposed on the fixed seat and contacts the side wall of the bridge.

[0022] In some specific embodiments, the support frame includes a bottom frame, diagonal bracing, and a top frame, which are used to mount on the bridge deck. The bottom end of the diagonal bracing is connected to the bottom frame, and the top end of the diagonal bracing extends upward and outward toward the bridge. The top end of the diagonal bracing is provided with a top frame, and the hanging basket is suspended at least directly below the top frame.

[0023] Beneficial Effects: This solution utilizes a support frame to hoist the formwork, which rests on the bridge deck and can be moved via a displacement mechanism. Guided by the already cast bridge cantilever and two sets of guiding mechanisms, the displacement accuracy is ensured, guaranteeing the construction accuracy of the next bridge cantilever segment. After the support frame is in place, it is clamped by a clamping mechanism located on the side wall of the bridge, providing strong anti-overturning capability. Compared to traditional methods, this solution eliminates the need for drilling holes and nailing reinforcement on the bridge deck, and eliminates the need for additional guide rails, allowing for very rapid adjustment of the formwork's position from one segment to the next. Attached Figure Description

[0024] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0025] Appendix Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0026] Appendix Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from another perspective;

[0027] Appendix Figure 3 This is an enlarged structural diagram of part A of this utility model.

[0028] Figure descriptions: 1-Bearing frame; 2-Clamping mechanism; 3-Hanging basket; 4-Displacement mechanism; 5-Guiding mechanism; 6-Crossbeam; 7-Push-pull mechanism; 8-Modible bracket; 9-Counterweight placement position; 10-Modible longitudinal beam; 11-Guide support; 12-Fixed seat; 13-Guide wheel; 14-Locking component; 15-Bottom frame; 16-Diagonal brace; 17-Top frame; 21-Mounting seat; 22-Telescopic mechanism; 23-Clamping plate; 24-Modible sleeve; 100-Bridge. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Cantilever casting is one of the main methods for constructing long-span bridges. The formwork, as its core equipment, needs to be moved along the already cast bridge deck to the next segment after the completion of one segment's casting. Traditional formwork methods suffer from slow movement speed and difficulty in positioning and adjustment. Generally, sleepers are first laid on the bridge deck for support, then a guide rail is placed and anchored by drilling and nailing. This method is cumbersome and causes significant local stress on the bridge deck. When it's time to cantilever cast the next bridge segment, the above process must be repeated on the bridge deck to install a new guide rail, then the support frame is moved to the new guide rail, and finally the original guide rail and sleepers are removed. The entire operation is extremely time-consuming and labor-intensive.

[0031] like Figures 1 to 3 The present solution provides a rapid-moving hanging basket device for cantilever bridge construction, comprising:

[0032] The support frame 1 is installed across the bridge 100 along the width of the bridge deck.

[0033] Clamping mechanisms 2 are respectively disposed on both transverse ends of the bearing frame 1 and are used to clamp and fix to the side wall of the bridge 100;

[0034] The hanging basket 3 is suspended on the support frame 1 and is used for casting formwork support;

[0035] The displacement mechanism 4 is located at the bottom of the support frame 1 and is used to drive the support frame 1 to move and displace on the bridge surface.

[0036] The guide mechanism 5 is disposed at both ends of the lateral direction of the support frame 1 and is used to contact the side wall of the bridge 100 to guide the displacement of the support frame 1 along the length direction of the bridge.

[0037] The invention organically integrates the three major functions of the hanging basket 3: movement, fixation, and guidance. Automatic movement is achieved through the displacement mechanism 4, eliminating reliance on complex external traction equipment and resulting in high movement efficiency. Rapid automatic anchoring after positioning is achieved through the clamping mechanism 2, providing strong anti-overturning capability. Automatic correction and anti-overturning during movement are achieved through the contact between the guiding mechanism 5 and the bridge sidewall, ensuring the straightness of the movement path. The coordinated work of these three components fundamentally solves the core pain points of traditional hanging baskets: slow movement, difficult adjustment, and poor stability. This establishes the integrated architecture of "self-propelled, self-anchored, and self-guided" in this invention.

[0038] This scheme uses a support frame 1 to hoist the hanging basket 3, which rests on the bridge deck and can move and shift via a displacement mechanism 4. It is guided by the already cast bridge sidewalls (i.e., flanges) and two sets of guide mechanisms 5 to ensure the accuracy of the displacement and the construction accuracy of the next bridge cantilever segment. After the support frame 1 is in place, it is clamped by a clamping mechanism 2, with the clamping position on the bridge sidewall, providing strong anti-overturning capability. Compared to traditional methods, this scheme eliminates the need for drilling holes and nailing reinforcement on the bridge deck, and also eliminates the need for additional guide rails for positioning, allowing for very rapid adjustment of the hanging basket's position from one segment to the next.

[0039] As attached Figure 3 As shown, in some specific embodiments, the supporting mechanism 2 includes:

[0040] Mounting base 21 is disposed at the bottom of the support frame 1;

[0041] The telescopic mechanism 22 has a fixed part mounted on the mounting base 21 and a clamping plate 23 mounted on the movable part of the telescopic mechanism 22. The clamping plate 23 is located below the bridge. The telescopic mechanism 22 drives the clamping plate 23 to move up and down to clamp or detach from the bridge.

[0042] A reliable anchoring method is provided, clamping the device from beneath the bridge's flange plate. A telescopic mechanism 22 (such as a hydraulic cylinder) provides a powerful vertical lifting force, driving the clamping plate 23 to firmly press against the underside of the bridge flange plate. This "lifting" clamping method ensures clear force transmission, is structurally friendly, and avoids damage. Simultaneously, the lifting action is easily automated, and clamping and releasing are very rapid, making it a key element in achieving rapid basket movement.

[0043] In some specific embodiments, the support frame 1 includes a crossbeam 6, which is arranged across the width of the bridge deck and has both ends extending outward from the bridge deck. The mounting base 21 is guided and slidably arranged on the crossbeam 6. The clamping mechanism 2 is adjusted relative to the bridge 100 along the length of the crossbeam 6.

[0044] This embodiment provides the clamping mechanism 2 with adjustable lateral position. By allowing the mounting base 21 to slide and adjust on the crossbeam 6, the distance between the two clamping mechanisms 2 can be adjusted. On the one hand, this facilitates the insertion of the clamping mechanism 2 under the bridge wing plate during initial installation by adjusting its position; on the other hand, it enables clamping and releasing, ensuring that the entire device can be displaced when switching to the next segment; and on yet another hand, it allows the same device to adapt to engineering projects with different bridge deck widths, greatly improving the versatility and economy of the equipment.

[0045] like Figures 1 to 3As shown, in a specific embodiment: the bearing frame 1 is a truss structure welded from structural steel, possessing high strength and rigidity. It is supported on the bridge deck by a displacement mechanism 4. The displacement mechanism 4 is, for example, a set of wheels with its own drive motor. The hanging basket 3 is suspended below the top frame 17 of the bearing frame 1 by precision-rolled threaded steel rods. At both ends of the bearing frame 1, the mounting seats 21 of the clamping mechanism 2 are fixed to the crossbeam 6. When clamping is required, the telescopic mechanism 22 (such as a hydraulic cylinder) drives the clamping plate 23 to rise, tightly pressing against the bridge flange from below, anchoring the entire device. During movement, the telescopic mechanism 22 extends the clamping plate 23, which descends and detaches from the bridge deck. The guide wheel 13 of the guiding mechanism 5 is always in contact with the side of the bridge web or flange, playing a guiding role during movement. Furthermore, even if the clamping plate detaches from the bridge, it still possesses a certain degree of anti-overturning capability.

[0046] In some specific embodiments, a movable sleeve 24 is movably fitted on the cantilever section of the crossbeam 6, the mounting base 21 is disposed on the movable sleeve 24, and a push-pull mechanism 7 is provided on the crossbeam 6 corresponding to the movable sleeve 24. The movable end of the push-pull mechanism 7 is connected to the movable sleeve 24, and the push-pull mechanism 7 drives the movable sleeve 24 to adjust its displacement on the crossbeam 6.

[0047] The push-pull mechanism 7, such as an electric actuator or hydraulic cylinder, can be remotely controlled to drive the movable sleeve 24, which in turn moves the entire clamping mechanism 2 smoothly and stops precisely at a preset position. This is more labor-saving, precise, and efficient than manual adjustment, especially for large, heavy-duty hanging baskets, where its advantages are particularly evident.

[0048] In some specific embodiments, the bottom of the support frame 1 is also provided with a movable support 8, which is movably adjustable on the support frame 1 in the length direction of the bridge, and the movable support 8 includes a counterweight placement position 9 for placing a counterweight block; the position of the movable support 8 is adjusted to change the position of the counterweight center of gravity.

[0049] This embodiment provides an active and adjustable balancing method to cope with overturning moments. By moving the movable support 8, which holds the counterweight, back and forth, the lever arm of the stabilizing moment generated by the counterweight can be changed, thereby precisely counteracting the forward tilting moment caused by the forward movement of the formwork or concrete pouring. This dynamic balancing capability reduces the absolute dependence on the rear anchorage of the bridge deck during construction, making the mechanical system more rational and improving the overall safety margin.

[0050] In some specific embodiments, the movable support 8 includes at least one set of movable longitudinal beams 10 arranged along the width direction of the bridge deck, the movable longitudinal beams 10 are arranged along the length direction of the bridge, the bottom of the support frame 1 is provided with a guide support 11, and the movable longitudinal beams 10 are guided and adjusted on the guide support 11.

[0051] The structure of the movable support 8 is specified, providing a stable and reliable counterweight movement scheme. The movable longitudinal beam 10 provides sufficient length and rigidity to support the counterweight and achieve a wide range of movement. The guide support 11 ensures that the movable longitudinal beam 10 can only slide smoothly along the preset bridge longitudinal direction without deflection or jamming, guaranteeing the smoothness and precision of the adjustment process.

[0052] In one embodiment, the clamping mechanism 2 is fitted onto the cantilever section of the crossbeam 6 via a movable sleeve 24. A push-pull mechanism 7 drives the movable sleeve 24 to slide along the crossbeam 6, thereby adjusting the position of the clamping mechanism 2 relative to the bridge sidewall to accommodate different bridge deck widths. Simultaneously, a movable support 8 is provided at the bottom of the bearing frame 1, on which a counterweight, such as a precast concrete block, is placed. By moving the movable longitudinal beam 10 along the longitudinal direction of the bridge within the guide support 11, the front-to-back position of the counterweight's center of gravity can be changed, thereby precisely balancing the forward tilting moment generated during pouring, reducing the burden on the clamping mechanism and the rear anchor, and improving safety.

[0053] In some specific embodiments, a locking element 14 is provided on the guide support 11. The movable longitudinal beam 10, after adjustment, is locked by the locking element 14. For example, the movable support 11 is a rectangular sleeve structure, and the locking element 14 can be a locking bolt passing through the guide support 11, with one end extending into the inner cavity of the rectangular sleeve structure, thereby locking the movable longitudinal beam 10 located within the rectangular sleeve structure and ensuring its fixed position.

[0054] In some specific embodiments, the displacement mechanism 4 is disposed at the bottom of the movable longitudinal beam 10.

[0055] In some specific embodiments, the guiding mechanism 5 includes a fixed seat 12 and a guide wheel 13. The fixed seat 12 is fixedly disposed on the side of the clamping mechanism 2 facing the bridge sidewall, and the guide wheel 13 is rotatably disposed on the fixed seat 12 and contacts the sidewall of the bridge, where the sidewall of the bridge refers to the flange of the bridge.

[0056] The guide wheel 13 contacts the bridge sidewall through rolling friction, resulting in low resistance and no wear on the concrete surface. Its simple structure and low cost effectively constrain the lateral displacement of the formwork within allowable limits, ensuring its straight-line movement.

[0057] In some specific embodiments, the support frame 1 includes a bottom frame 15, a diagonal brace 16, and a top frame 17. The bottom of the diagonal brace 16 is connected to the bottom frame 15, and the top of the diagonal brace 16 extends outward and upward toward the outside of the bridge 100. The top of the diagonal brace 16 is provided with a top frame 17, and the hanging basket 3 is suspended at least directly below the top frame 17.

[0058] A load-bearing structure with excellent mechanical properties was constructed. The bottom frame 15 provides a stable foundation and connects to the traveling mechanism; the diagonal bracing 16 effectively transfers the load of the top frame 17 to the bottom frame, forming a stable force transmission path; the top frame 17 provides lifting points for the hanging basket. This structure ensures overall strength and rigidity while facilitating processing and manufacturing.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" 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 mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0060] The above steps are provided only to help understand the method, structure, and core ideas of this application. Those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A rapidly moving formwork device for cantilever bridge construction, characterized in that, include: The support frame (1) is installed across the bridge (100) above the bridge deck (100) along the width direction of the bridge deck; Clamping mechanisms (2) are respectively installed on both transverse ends of the bearing frame (1) and are used to clamp and fix to the side wall of the bridge (100); The hanging basket (3) is suspended on the support frame (1) and is used for casting formwork; The displacement mechanism (4) is located at the bottom of the support frame (1) and is used to drive the support frame (1) to move and displace on the bridge surface; The guide mechanism (5) is provided at both ends of the lateral direction of the support frame (1) and is used to contact the side wall of the bridge (100) to guide the displacement of the support frame (1) along the length direction of the bridge.

2. The rapidly moving hanging basket device for cantilever bridge construction according to claim 1, characterized in that, The clamping mechanism (2) includes: Mounting base (21) is provided at the bottom of the support frame (1); The telescopic mechanism (22) has a fixed part on the mounting base (21) and a clamping plate (23) on the movable part of the telescopic mechanism (22). The clamping plate (23) is located below the bridge. The telescopic mechanism (22) drives the clamping plate (23) to move up and down to clamp or detach from the bridge.

3. A rapidly moving hanging basket device for cantilever bridge construction according to claim 2, characterized in that, The support frame (1) includes a crossbeam (6), which is arranged across the width of the bridge deck and both ends of the crossbeam (6) extend out of the outer side of the bridge deck. The mounting seat (21) is guided and slidably arranged on the crossbeam (6). The clamping mechanism (2) is adjusted relative to the bridge (100) along the length of the crossbeam (6).

4. A rapidly moving hanging basket device for cantilever bridge construction according to claim 3, characterized in that, A movable sleeve (24) is movably fitted on the cantilever section of the crossbeam (6). The mounting base (21) is set on the movable sleeve (24). A push-pull mechanism (7) is provided on the crossbeam (6) corresponding to the movable sleeve (24). The movable end of the push-pull mechanism (7) is connected to the movable sleeve (24). The push-pull mechanism (7) drives the movable sleeve (24) to adjust its displacement on the crossbeam (6).

5. A rapidly moving hanging basket device for cantilever bridge construction according to claim 1, characterized in that, The bottom of the support frame (1) is also provided with a movable support (8), which is movable and adjustable on the support frame (1) in the length direction of the bridge, and the movable support (8) includes a counterweight placement position (9) for placing counterweight blocks; the position of the movable support (8) is adjusted to change the position of the counterweight center of gravity.

6. A rapidly moving formwork device for cantilever bridge construction according to claim 5, characterized in that, The movable support (8) includes at least one set of movable longitudinal beams (10) arranged along the width direction of the bridge deck. The movable longitudinal beams (10) are arranged along the length direction of the bridge. The bottom of the support frame (1) is provided with a guide support (11). The movable longitudinal beams (10) are guided and adjusted on the guide support (11).

7. A rapidly moving hanging basket device for cantilever bridge construction according to claim 6, characterized in that, The guide support (11) is provided with a locking element (14).

8. A rapidly moving hanging basket device for cantilever bridge construction according to claim 6, characterized in that, The displacement mechanism (4) is located at the bottom of the movable longitudinal beam (10).

9. A rapidly moving hanging basket device for cantilever bridge construction according to claim 1, characterized in that, The guiding mechanism (5) includes a fixed seat (12) and a guide wheel (13). The fixed seat (12) is fixedly disposed on the side of the clamping mechanism (2) facing the side wall of the bridge. The guide wheel (13) is rotatably disposed on the fixed seat (12) and the guide wheel (13) contacts the side wall of the bridge.

10. A rapidly moving hanging basket device for cantilever bridge construction according to claim 1, characterized in that, The support frame (1) includes a bottom frame (15), a diagonal brace (16) and a top frame (17). The (15) is used to be installed on the bridge deck. The bottom end of the diagonal brace (16) is connected to the bottom frame (15), and the top end of the diagonal brace (16) extends upward toward the outside of the bridge (100). The top end of the diagonal brace (16) is provided with a top frame (17), and the hanging basket (3) is suspended at least directly below the top frame (17).

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