Protective bottom pocket for bridge fabrication machine construction

Abstract

The utility model relates to a protective bottom pocket for construction of a bridge fabrication machine, which comprises a foldable bottom pocket and a protective cover, the middle unit comprises a positioning column and a middle bottom pocket, and the positioning column is connected with the middle bottom pocket and extends in the vertical direction; the folding unit comprises a tension cable, a positioning piece and a folding bottom pocket; one end of the tensioning cable is connected with the positioning column, the other end of the tensioning cable is connected with the folding bottom pocket, and the folding bottom pocket is hinged to the edge of the middle bottom pocket; the positioning piece is connected with the tensioning cable and the positioning column and is used for changing the inclination angle of the folding bottom pocket; the suspension beam is connected with the reverse hook beam through a suspension rod and located below the bottom die platform. The suspension beam extends along the longitudinal direction of the bridge body; the walking device is movably mounted on the suspension beam in the length direction of the suspension beam; and the lifting device is arranged on the walking device and is connected with the positioning column. According to the utility model, the overhead working amount is reduced, and the requirement on the size of a ground working platform is low.

Description

A protective bottom bag for bridge construction machine Technical Field

[0001] This application relates to the field of bridge-building machine safety construction technology, and in particular to a protective bottom bag for bridge-building machine construction. Background Technology

[0002] Bridge-building machines primarily utilize cantilever casting for in-situ bridge construction. A typical example of a bridge-building machine, as shown in announcement number CN114673098B, involves a main beam driving a hook beam to move, enabling continuous high-altitude casting of the bridge. During the formwork erection and dismantling processes before and after casting, manual labor is required at varying levels along the formwork. This high-altitude work environment typically necessitates the installation of protective netting below to prevent falling objects or personnel, ensuring construction safety.

[0003] Generally, for high-altitude operations like deploying protective netting structures using bridge-building machines, the construction methods include either direct high-altitude assembly or ground assembly followed by hoisting. Direct high-altitude assembly of the protective netting structure presents drawbacks such as high difficulty and a large workload at height. Ground assembly followed by hoisting requires sufficient assembly space below the 0th block; however, in some special operational scenarios, such as river-crossing or valley-crossing bridge piers, the working platform at the base of the pier is usually not large enough to provide a sufficiently large assembly area. Summary of the Invention

[0004] Therefore, it is necessary to provide a protective bottom cover for bridge construction machine, and its specific technical solution is as follows.

[0005] A protective bottom cover for bridge-building machine construction, comprising:

[0006] A foldable bottom pocket includes a middle unit and a folding unit; the middle unit includes a positioning post and a middle bottom pocket, the positioning post being connected to the middle bottom pocket and extending vertically; the folding unit includes a tension cable, a positioning element, and a foldable bottom pocket; one end of the tension cable is connected to the positioning post, and the other end is connected to the foldable bottom pocket, the foldable bottom pocket being hinged to the edge of the middle bottom pocket; the positioning element connects the tension cable and the positioning post, and is used to change the tilt angle of the foldable bottom pocket;

[0007] The suspension beam is connected to the anti-hook beam via a hanger and is located below the bottom formwork platform; the suspension beam extends along the longitudinal direction of the bridge body;

[0008] The traveling device is mounted on the suspension beam and moves along the length of the suspension beam.

[0009] The lifting device is installed on the traveling device and connected to the positioning column.

[0010] Furthermore, the positioning component includes a positioning rod and a nut; the positioning rod is provided with a pressure plate; the positioning post is provided with a positioning hole; the positioning rod passes through the positioning hole and is connected to the nut, and the pressure plate presses the tension cable tightly onto the positioning rod.

[0011] Furthermore, the tension cable is a chain, and the positioning rod passes through a link of the chain before being inserted into the positioning hole.

[0012] Furthermore, the intermediate bottom pocket includes an intermediate frame and a first wire mesh, the first wire mesh covering the intermediate frame and connected to the intermediate frame; the folding bottom pocket includes a folding frame and a second wire mesh, the second wire mesh covering the folding frame and connected to the folding frame; the folding frame is hinged to the intermediate frame.

[0013] Furthermore, the folding frame includes at least two sub-frame units that are hinged together.

[0014] Furthermore, the intermediate unit is provided with folding units on all four sides, and a compensating wire mesh is provided between adjacent folding frames; the compensating wire mesh is folded up as the folding frame is folded and unfolded as the folding frame is unfolded.

[0015] Furthermore, the suspension beam includes a top plate, a bottom plate, and an I-beam; a double I-beam connects the top plate and the bottom plate; the traveling device includes a traveling frame, traveling wheels, and a motor; the traveling wheels are rotatably mounted on the traveling frame, and the motor is connected to the traveling wheels; the traveling wheels extend into the side grooves of the I-beams and press against the lower flange.

[0016] Furthermore, the lifting device is an electric hoist.

[0017] Beneficial effects: The protective bottom bag for bridge construction machine provided by this utility model can be lifted to a high level after the ground working platform is assembled and moved into place, and then the working platform can be unfolded. This reduces the amount of high-altitude work and has small size requirements for the ground working platform. It can be used for bridge piers that cross rivers and valleys with smaller ground working platforms. The high-altitude unfolding method is also very simple, reducing the difficulty of high-altitude work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the protective bottom bag in the raised state;

[0020] Figure 2 is a schematic diagram of the protective bottom cover in its deployed state;

[0021] Figure 3 is a schematic diagram of the overall structure of the protective bottom bag;

[0022] Figure 4 is a schematic diagram of the cooperation between the walking device and the suspension beam;

[0023] Figure 5 is a schematic diagram of the locking state of the positioning component and the chain.

[0024] Explanation of reference numerals in the attached drawings: 1. Folding bottom pocket; 2. Suspension beam; 3. Traveling device; 4. Lifting device; 5. Hanging rod; 6. Reverse hook beam;

[0025] 11. Middle bottom pocket; 12. Folding bottom pocket; 13. Positioning post; 15. Tension cable; 16. Positioning component; 18. Compensating wire mesh;

[0026] 121. Folding frame; 122. Second wire mesh;

[0027] 151. Link;

[0028] 161. Positioning rod; 162. Nut; 163. Pressure plate;

[0029] 21. Top plate; 22. Bottom plate; 23. I-beam;

[0030] 31. Walking frame; 32. Walking wheels. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0033] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Example

[0038] This embodiment provides a protective bottom for bridge construction machine, as shown in Figure 1, including a foldable bottom 1, a suspension beam 2, a traveling device 3, and a lifting device 4. Referring to Figure 3, the foldable bottom 1 includes an intermediate unit and a folding unit. The intermediate unit includes positioning posts 13 and an intermediate bottom 11. The positioning posts 13 are connected to the intermediate bottom 11 and extend vertically. There are four positioning posts 13, distributed at the four corners of the intermediate bottom 11. The folding unit includes a tension cable 15, a positioning element 16, and a foldable bottom 12. One end of the tension cable 15 is connected to the positioning post 13, and the other end is connected to the foldable bottom 12, which is hinged to the edge of the intermediate bottom 11. The positioning element 16 connects the tension cable 15 and the positioning post 13, and is used to change the tilt angle of the foldable bottom 12. By connecting the positioning element 16 and the tension cable 15 at different positions to the positioning post 13, the tilt angle of the folding bottom pocket 12 can be changed, thereby switching between the folded and unfolded states.

[0039] Specifically, the suspension beam 2 is connected to the anti-hook beam 6 via the hanger 5, and the suspension beam 2 is located below the bottom formwork platform. The suspension beam 2 extends along the longitudinal direction of the bridge body, and its length is greater than the length of the hanging basket. The traveling device 3 is movably installed on the suspension beam 2 along its length. The lifting device 4 is installed on the traveling device 3 and connected to the positioning column 13.

[0040] Referring to Figures 1 and 2, during the construction of the protective base, the foldable base 1 is first assembled on the ground to form a folded state. At this time, the folding unit fits against the edge of the positioning column 13, making the overall footprint of the foldable base 1 small and adaptable to the working platform size of bridge piers spanning rivers and valleys. The foldable base 1 is lifted to a high altitude using the lifting device 4, and then moved to the middle position below the hanging basket by the traveling device 3. Finally, the folding unit is unfolded to provide sufficient protection for the area below the bridge building machine.

[0041] The protective bottom bag for bridge construction provided in this embodiment can be lifted to a high position as a whole after the ground working platform is assembled and moved into place, and then the working platform can be unfolded. This reduces the amount of high-altitude work and has small size requirements for the ground working platform. It can be used for bridge piers that cross rivers and valleys with smaller ground working platforms. The high-altitude unfolding method is also very simple, reducing the difficulty of high-altitude work.

[0042] Specifically, referring to Figure 5, the positioning component 16 includes a positioning rod 161 and a nut 162; a pressure plate 163 is provided on the positioning rod 161; a positioning hole is provided on the positioning post 13; the positioning rod 161 passes through the positioning hole and connects to the nut 162, and the pressure plate 163 presses the tension cable 15 tightly onto the positioning rod 161. When unfolding the folding unit at height, the folding unit can be adjusted by disassembling the positioning rod 161 and releasing a certain length of the tension cable 15, making the unfolding operation simple and convenient, and reducing the difficulty of high-altitude operations.

[0043] Specifically, the tension cable 15 can be a chain, which includes multiple interlocking links 151. The positioning rod 161 passes through the links 151 of the chain and is then inserted into the positioning hole. When switching between the unfolded and retracted states of the folding unit, it is only necessary to insert the positioning rod 161 into different connections to change the release length of the chain.

[0044] Specifically, the intermediate bottom pocket 11 includes an intermediate frame and a first wire mesh, the first wire mesh covering and connected to the intermediate frame; the folding bottom pocket 12 includes a folding frame 121 and a second wire mesh 122, the second wire mesh 122 covering and connected to the folding frame 121; the folding frame 121 is hinged to the intermediate frame. The frame supports the wire mesh, which provides comprehensive protection.

[0045] Specifically, in this embodiment, each folding frame 121 includes two sub-frame units that are hinged to each other. In other embodiments, each folding frame 121 may also use one or more sub-frame units.

[0046] Specifically, the intermediate unit is equipped with folding units around its perimeter, and a compensating wire mesh 18 is provided between adjacent folding frames 121. The compensating wire mesh 18 folds up as the folding frames 121 are folded and unfolds as the folding frames 121 are unfolded. By adding the compensating wire mesh 18, the overall protection of the bottom of the bridge-building machine is improved. It should be noted that the first wire mesh on the intermediate bottom pocket 11 is supported by the intermediate frame as a skeleton structure, and the second wire mesh 122 on the folding bottom pocket 12 is supported by the folding frame 121 as a skeleton structure; while the compensating wire mesh 18 is directly connected to the folding frame 121 and has no skeleton structure support, so it can fold up or unfold with the folding units.

[0047] Specifically, referring to Figure 4, the suspension beam 2 includes a top plate 21, a bottom plate 22, and an I-beam 23; a double I-beam 23 connects the top plate 21 and the bottom plate 22; the traveling device 3 includes a traveling frame 31, traveling wheels 32, and a motor; the traveling wheels 32 are rotatably mounted on the traveling frame 31, and the motor is connected to the traveling wheels 32; the traveling wheels 32 extend into the side grooves of the I-beam 23 and press against the lower flange. Traveling wheels 32 are provided in the side grooves on both sides of the suspension beam 2 to maintain the stability of the traveling device 3.

[0048] Specifically, in this embodiment, the lifting device 4 is an electric hoist, and the lifting device 4 is installed on the walking frame 31.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A protective bottom cover for bridge-building machine construction, characterized in that, include: A folding bottom support includes a middle unit and a folding unit; the middle unit includes a positioning post and a middle bottom support, the positioning post being connected to the middle bottom support and extending vertically; the folding unit includes a tension cable, a positioning element, and a folding bottom support; one end of the tension cable is connected to the positioning post, and the other end is connected to the folding bottom support, the folding bottom support being hinged to the edge of the middle bottom support; the positioning element connects the tension cable and the positioning post, and is used to change the tilt angle of the folding bottom support; a suspension beam is connected to the anti-hook beam via a hanger and is located below the bottom formwork platform; the suspension beam extends along the longitudinal direction of the bridge body; a traveling device is movably installed on the suspension beam along its length. The lifting device is installed on the traveling device and connected to the positioning column.

2. The protective bottom cover for bridge construction machine according to claim 1, characterized in that, The positioning component includes a positioning rod and a nut; a pressure plate is provided on the positioning rod; a positioning hole is provided on the positioning post; the positioning rod passes through the positioning hole and is connected to the nut, and the pressure plate presses the tension cable tightly onto the positioning rod.

3. The protective bottom cover for bridge construction machine according to claim 2, characterized in that, The tension cable is a chain, and the positioning rod passes through a link of the chain before being inserted into the positioning hole.

4. The protective bottom cover for bridge construction machine according to claim 1, characterized in that, The intermediate bottom pocket includes an intermediate frame and a first wire mesh, the first wire mesh covering the intermediate frame and connected to the intermediate frame; the folding bottom pocket includes a folding frame and a second wire mesh, the second wire mesh covering the folding frame and connected to the folding frame; the folding frame is hinged to the intermediate frame.

5. The protective bottom cover for bridge construction machine according to claim 4, characterized in that, The folding frame includes at least two sub-frame units, which are hinged together.

6. The protective bottom cover for bridge construction machine according to claim 4, characterized in that, The middle unit is provided with folding units on all four sides, and a compensating wire mesh is provided between adjacent folding frames; the compensating wire mesh is folded up as the folding frame is folded and unfolded as the folding frame is unfolded.

7. The protective bottom cover for bridge construction machine according to claim 1, characterized in that, The suspension beam includes a top plate, a bottom plate, and an I-beam; a double I-beam connects the top plate and the bottom plate; the traveling device includes a traveling frame, traveling wheels, and a motor; the traveling wheels are rotatably mounted on the traveling frame, and the motor is connected to the traveling wheels; the traveling wheels extend into the side grooves of the I-beams and press against the lower flange.

8. The protective bottom cover for bridge construction machine according to claim 7, characterized in that, The lifting device is an electric hoist.

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