Construction method of movable steel truss trolley and formwork for tall concrete sidewalls

Abstract

This application relates to the field of vehicle body technology, particularly to a movable steel truss trolley for tall concrete sidewalls. The trolley includes a vehicle body with a support frame. The support frame includes vertical and horizontal frames. Both ends of the horizontal frames extend out of the vehicle body and are equipped with paired templates. Lifting rollers are located at the ends of the horizontal frames, and lifting ropes are attached to the lifting rollers. One end of the lifting rope is connected to the lifting roller, and the other end is connected to the upper end of the template. Lifting holes are opened at the ends of the horizontal frames, through which the lifting rope passes and connects to the template. A connecting pipe is slidably connected to the template, and the connecting pipe is aligned with the lifting hole. The lifting rollers rotate to transport the template via the lifting rope. At this time, the template is connected to the horizontal frame via the lifting rope, allowing for relative flexibility. The operator can fine-tune the position of the template and place it accurately. Subsequently, the operator pushes the connecting pipe, which slides upward, and the upper end of the connecting pipe inserts into the lifting hole. At this point, the template is rigidly connected to the horizontal frame via the connecting pipe, preventing the template from wobbling.

Description

Technical Field

[0001] This application relates to the technical field of trolleys, and in particular to a movable steel truss trolley for tall concrete sidewalls and a method for formwork construction. Background Technology

[0002] In recent years, highway construction projects have become increasingly large-scale and complex. These projects often involve the construction of tall concrete sidewalls such as U-shaped channels under highways, retaining walls, and box culverts. Currently, the construction of such tall sidewall structures mostly employs a steel pipe scaffold (or cup-lock scaffold) + steel formwork (or wooden formwork) assembly method. Due to the unavoidable formwork seams inherent in traditional construction techniques, common quality defects such as sand lines and misaligned joints frequently occur on the concrete surface. Furthermore, formwork assembly and dismantling require significant manpower and material input, have long installation and dismantling cycles, and result in high costs.

[0003] Currently, the existing formwork trolleys are integrated formwork trolleys that combine walking, support, and operation. For related technology, please refer to Chinese Patent No. CN114776328A, which discloses a walking formwork trolley for culvert construction and its construction process. It includes two ground rails fixed on a base with two rows of steel mesh, and the two ground rails are parallel to each other and located between the two rows of steel mesh. The trolley body is set on the ground rails, and a hanging mechanism is set at the top of the trolley body. The hanging mechanism includes two overhead rails extending out of the perimeter of the steel mesh. Electric sliders are slidably connected in both overhead rails, and each electric slider is equipped with a matching pull rope and hook below it.

[0004] The aforementioned formwork trolley transports and supports the formwork using ropes and hooks. While ropes and hooks offer good flexibility in adjusting the formwork's position, the ropes themselves are flexible. Once the formwork is positioned, it is prone to swaying during the fixing process, leading to inaccurate installation and affecting construction. Summary of the Invention

[0005] To improve the stability of the formwork and reduce the impact on construction, this application provides a movable steel truss trolley for tall concrete sidewalls.

[0006] The movable steel truss trolley for tall concrete sidewalls provided in this application adopts the following technical solution:

[0007] A movable steel truss trolley for tall concrete sidewalls includes a vehicle body with a support frame. The support frame includes a vertical frame mounted on the vehicle body and a horizontal frame mounted on the upper end of the vertical frame. The two ends of the horizontal frame extend out of the vehicle body and are located on both sides of the vehicle body in the direction of travel, with templates mounted in pairs. The ends of the horizontal frame are equipped with lifting rollers, and the lifting rollers are equipped with lifting ropes for lifting the templates. One end of the lifting rope is connected to the lifting roller, and the other end is connected to the upper end of the template. The ends of the horizontal frame have lifting holes, through which the lifting rope passes and connects to the template. The template is slidably connected to a connecting pipe along the height direction, and the connecting pipe is directly opposite the lifting hole.

[0008] By adopting the above technical solution, the vehicle moves to the construction position, and the lifting rollers rotate to transport the formwork via lifting ropes. At this time, the formwork is connected to the crossbeam via the lifting ropes, which is relatively flexible, allowing operators to fine-tune the position of the formwork and place it accurately. Subsequently, the operator pushes the connecting pipe, which slides upward and inserts its upper end into the lifting hole. At this point, the formwork is rigidly connected to the crossbeam via the connecting pipe, making it less prone to swaying and highly stable. This reduces the impact of formwork swaying during the pouring process and ensures the pouring effect.

[0009] Preferably, the template has an installation hole, a ball joint is rotatably connected in the installation hole, and the connecting tube is slidably connected to the inner wall of the ball joint.

[0010] By adopting the above technical solution, the template may be misaligned with the cross frame during the fine-tuning process, causing the connecting pipe to be not directly below the lifting hole. At this time, the ball joint rotates, driving the connecting pipe to rotate and adjusting the direction and orientation of the connecting pipe, so that the connecting pipe is aligned with the lifting hole and can be inserted into the lifting hole, thereby completing the installation and fixing of the template.

[0011] Preferably, the side wall of the connecting pipe is provided with a clearance groove for avoiding the lifting rope, and the end of the lifting rope is connected to the inner wall of the ball joint through the clearance groove.

[0012] By adopting the above technical solution, when the connecting pipe passes through the installation hole, the connecting pipe slides along the lifting rope. The lifting rope guides the sliding direction of the connecting pipe, so that the connecting pipe can be aligned with the lifting hole and the insertion can be completed.

[0013] Preferably, a connecting hook is fixed to the inner wall of the ball joint, and a connecting ring for connecting to the connecting hook is fixed to the end of the lifting rope.

[0014] By adopting the above technical solution, the lifting rope is connected to the ball joint through the connecting ring, which is simple in structure and easy to assemble and disassemble.

[0015] Preferably, the lifting hole is rotatably connected to a hollow spherical joint for engaging the connecting pipe.

[0016] By adopting the above technical solution, when the connecting pipe is inserted into the lifting hole at an angle, the ball joint in the lifting hole rotates, so that the axis of the ball joint is aligned with the axis of the connecting pipe, which facilitates the insertion of the connecting pipe.

[0017] Preferably, the inner wall of the ball joint is fixed with a positioning hook, and the lifting rope is connected to the template after passing through the positioning hook.

[0018] By adopting the above technical solution, when the template is adjusted, the lifting rope will swing along with it. At this time, the angle between the template and the cross frame will shift. When the lifting rope moves with the template, the lifting rope drives the ball joint to rotate synchronously through the positioning hook. The other end of the lifting rope drives the ball head joint to rotate, so that the ball joint and the ball head joint rotate synchronously, ensuring the coaxiality of the two, which facilitates the insertion of the connecting pipe.

[0019] Preferably, the end of the connecting pipe facing the crossbeam has a locking hole, and a locking block located directly below the lifting hole is slidably connected to the crossbeam. When the end of the connecting pipe is inserted into the lifting hole, the locking block is directly opposite the locking hole.

[0020] By adopting the above technical solution, the connecting pipe is inserted into the lifting hole, and the locking block is inserted into the locking hole to lock the connecting pipe, thereby improving the connection strength between the two.

[0021] Preferably, the cross frame includes a fixed frame fixedly connected to the vertical frame and a movable frame slidably connected to the fixed frame. The sliding direction of the movable frame is perpendicular to the traveling direction of the vehicle body, and the template is connected to the movable frame.

[0022] By adopting the above technical solution, the moving frame slides along the cross frame, thereby adjusting the position of the template in the lateral direction, which has a wide range of applications.

[0023] Preferably, the moving frame is provided with a guide rail, and a traveling seat is slidably connected to the guide rail. The direction of movement of the traveling seat is parallel to the direction of travel of the vehicle body, and the template is connected to the traveling seat.

[0024] By adopting the above technical solution, the position of the template in the longitudinal direction can be adjusted by sliding the traveling seat along the guide rail, thereby further improving the applicability of the template.

[0025] Another objective of this application is to provide a formwork construction method for a movable steel truss trolley for tall concrete sidewalls.

[0026] A method for formwork construction of a movable steel truss trolley for tall concrete sidewalls, using the aforementioned movable steel truss trolley for tall concrete sidewalls.

[0027] Erect and fix the ground rails on the base, and drive the vehicle to the end of the steel mesh to perform formwork support work; install the templates in pairs in the corresponding positions, adjust the lifting ropes to a distance of 10 cm from the base, adjust the position of the templates to be in the installation position, and place the templates on the base; the connecting pipes extend from the templates and are inserted into the lifting holes; set up the templates in pairs, and fix the pairs of templates together with tie rods.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By using connecting pipes, after the template is positioned, the connecting pipes rigidly connect the template to the cross frame, thereby improving the stability of the template and preventing it from shaking and affecting construction. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0031] Figure 2 This is a schematic diagram of the connection between the walking seat and the template in the embodiment;

[0032] Figure 3 This is a schematic diagram of the connection between the lifting rope and the ball joint in the embodiment;

[0033] Figure 4 This is a schematic diagram of the structure of the walking seat used to demonstrate the locking block in the embodiment.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Vehicle body; 11. Base; 12. Traveling wheel; 2. Bracket; 21. Vertical frame; 22. Horizontal frame; 221. Fixed frame; 222. Moving frame; 2221. Guide rail; 223. Traveling seat; 2231. Lifting hole; 2232. Ball joint; 2233. Positioning hook; 23. Locking block; 3. Template; 31. Mounting hole; 32. Ball joint; 321. Connecting hook; 4. Lifting roller; 5. Lifting rope; 51. Connecting ring; 6. Connecting pipe; 61. Clearance groove; 62. Locking hole. Detailed Implementation

[0036] The present application will be further described in detail below with reference to all the accompanying drawings.

[0037] Example 1

[0038] This application discloses a movable steel truss trolley for tall concrete sidewalls, see reference... Figure 1 b includes a vehicle body 1, which includes a base 11. The base 11 has four corner wheels 12 for driving the vehicle body 1. A bracket 2 is fixed to the middle of the upper surface of the base 11.

[0039] Reference Figure 1 The support 2 includes a vertical frame 21 and a horizontal frame 22. The vertical frame 21 is vertically fixed to the center of the base 11, and the horizontal frame 22 is horizontally positioned at the top of the vertical frame 21. The horizontal frame 22 includes two fixed frames 221 and four movable frames 222. The two fixed frames 221 are fixed to the top of the vertical frame 21 and are perpendicular to the traveling direction of the vehicle body 1, with both ends of the fixed frames 221 extending out of the vehicle body 1. The four movable frames 222 are slidably connected to the two ends of the fixed frames 221 in pairs. The movable frames 222 are equipped with rotating wheels that slide along the fixed frames 221 to adjust their position. The movable frames 222 are equipped with guide rails 2221, and a traveling seat 223 is slidably connected within the guide rails 2221. The traveling seat 223 slides along the guide rails 2221, and its direction of movement is parallel to the traveling direction of the vehicle body 1. A lead screw is rotatably connected inside the guide rail 2221, and a lead screw nut is provided on the traveling seat 223. The rotation of the lead screw drives the traveling seat 223 to move.

[0040] Reference Figure 1 and Figure 2 A lifting roller 4 and a lifting motor for driving the lifting roller 4 are rotatably connected to the traveling base 223. A lifting rope 5 is wound on the lifting roller 4. A lifting hole 2231 is provided on the traveling base 223. One end of the lifting rope 5 is fixedly connected to the lifting roller 4, and the other end passes through the lifting hole 2231 and is connected to the template 3. When the lifting motor is started, the lifting roller 4 rotates and lifts the template 3 through the lifting rope 5.

[0041] Reference Figure 1 and Figure 2 A ball joint 2232 is rotatably connected within the lifting hole 2231. A through hole is formed in the center of the ball joint 2232 to facilitate the passage of the lifting rope 5. A positioning hook 2233 is fixed to the inner wall of the ball joint 2232. When the lifting rope 5 passes through the lifting hole 2231, it wraps around the positioning hook 2233. As the lifting rope 5 swings within the lifting hole 2231, it drives the ball joint 2232 to rotate synchronously via the positioning hook 2233.

[0042] Reference Figure 1 and Figure 2 The upper surface of template 3 has a mounting hole 31, and a ball joint 32 is rotatably connected inside the mounting hole 31. A through hole is opened in the center of the ball joint 32, and a connecting pipe 6 is slidably connected inside the ball joint 32. A clearance groove 61 is opened on the outer wall of the connecting pipe 6 to avoid the lifting rope 5. The end of the lifting rope 5 away from the lifting roller 4 is located inside the connecting pipe 6 and is connected to the inner wall of the ball joint 32 through the clearance groove 61.

[0043] Reference Figures 1 to 3The inner wall of the ball joint 32 is fixed with a connecting hook 321 for connecting to the lifting rope 5. The connecting hook 321 extends into the connecting pipe 6 through the clearance groove 61. The end of the lifting rope 5 is fixed with a connecting ring 51 connected to the connecting hook 321. After the template 3 is lifted, when the position of the template 3 is adjusted, the lifting rope 5 will shift, and the shift of the lifting rope 5 will synchronously drive the ball joint 32 and the ball joint 2232 to rotate. The ball joint 32 and the ball joint 2232 always rotate synchronously under the drive of the lifting rope 5, and the coaxiality of the two is high. When the template 3 is adjusted to the corresponding position, the connecting pipe 6 passes out from the mounting hole 31, and the upper end of the connecting pipe 6 is inserted into the ball joint 2232, so that the template 3 and the traveling seat 223 are rigidly connected through the connecting pipe 6, thereby fixing the template 3 and improving the stability of the template 3.

[0044] Reference Figures 1 to 4 The end of the connecting pipe 6 facing the travel seat 223 has a locking hole 62. The travel seat 223 is slidably connected to a locking block 23 located directly below the lifting hole 2231 and a locking cylinder for controlling the sliding of the locking block 23. When the end of the connecting pipe 6 is inserted into the lifting hole 2231, the locking block 23 is aligned with the locking hole 62, which improves the stability of the connection between the connecting pipe 6 and the travel seat 223 and prevents them from falling off.

[0045] The implementation principle of the movable steel truss trolley for tall concrete sidewalls in this application embodiment is as follows: The trolley body 1 travels to the construction site, the moving frame 222 slides along the fixed frame 221 to the corresponding position, and the traveling seat 223 slides along the moving frame 222 to the corresponding position. The lifting motor starts, and the template 3 is gradually lowered to a certain distance from the ground. The operator fine-tunes the position of the template 3 until it is adjusted to the accurate position, and the lowered template 3 contacts the ground. The operator pushes the connecting pipe 6 upwards until the upper end of the connecting pipe 6 is inserted into the lifting hole 2231. The locking cylinder is activated, and the locking block 23 is inserted into the locking hole 62, fixing the connecting pipe 6. The templates 3 are set in pairs, and the two pairs of templates 3 are fixed by tie rods. Then, the connecting pipe 6 is retracted, and the connecting ring 51 is removed from the connecting hook 321, so that the lifting rope 5 is separated from the template 3. The trolley body 1 is then fitted with a new template 3 and proceeds to the next construction site.

[0046] Example 2

[0047] A method for formwork construction using a movable steel truss trolley for tall concrete sidewalls involves using the aforementioned movable steel truss trolley for tall concrete sidewalls. Ground rails are erected and fixed on a base, and the trolley is moved to the end of the reinforcing mesh for formwork support. Templates are installed in pairs at their respective positions. Lifting ropes are used to adjust the templates to a distance of 10 centimeters from the base. The template positions are adjusted to the installation location, and the templates are placed on the base. Connecting pipes extend from the templates and are inserted into lifting holes. Templates are set up in pairs, and the pairs are fixed together by tie rods.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A movable steel truss trolley with tall concrete sidewalls, comprising a trolley body (1), characterized in that, The vehicle body (1) is provided with a support (2), which includes a vertical frame (21) vertically mounted on the vehicle body (1) and a horizontal frame (22) horizontally mounted on the upper end of the vertical frame (21). The two ends of the horizontal frame (22) extend out of the vehicle body (1) and are located on both sides of the vehicle body (1) in the direction of travel, and are provided with templates (3) in pairs. The end of the horizontal frame (22) is provided with a lifting roller (4), and the lifting roller (4) is provided with a lifting rope (5) for lifting the template (3). One end of the lifting rope (5) is connected to the lifting roller (4), and the other end is connected to the upper end of the template (3). The end of the horizontal frame (22) is provided with a lifting hole (2231), and the lifting rope (5) passes through the lifting hole (2231) and is connected to the template (3). The template (3) is slidably connected to a connecting pipe (6) along the height direction. The connecting pipe (6) is connected to the lifting hole (2231). 1) Facing each other; The template (3) is provided with an installation hole (31), and a ball joint (32) is rotatably connected in the installation hole (31). The connecting pipe (6) is slidably connected to the inner wall of the ball joint (32). A hollow ball joint (2232) for locking the connecting pipe (6) is rotatably connected in the lifting hole (2231). A positioning hook (2233) is fixed in the inner wall of the ball joint (2232). The lifting rope (5) is connected to the template (3) after passing through the positioning hook (2233). A locking hole (62) is provided at one end of the connecting pipe (6) facing the cross frame (22). A locking block (23) located directly below the lifting hole (2231) is slidably connected on the cross frame (22). When the end of the connecting pipe (6) is inserted into the lifting hole (2231), the locking block (23) and the locking hole (62) are facing each other.

2. The movable steel truss trolley for tall concrete sidewalls according to claim 1, characterized in that: The side wall of the connecting pipe (6) is provided with a clearance groove (61) for avoiding the lifting rope (5), and the end of the lifting rope (5) is connected to the inner wall of the ball joint (32) through the clearance groove (61).

3. The movable steel truss trolley for tall concrete sidewalls according to claim 2, characterized in that: A connecting hook (321) is fixed to the inner wall of the ball joint (32), and a connecting ring (51) for connecting to the connecting hook (321) is fixed to the end of the lifting rope (5).

4. The movable steel truss trolley for tall concrete sidewalls according to claim 1, characterized in that: The horizontal frame (22) includes a fixed frame (221) fixedly connected to the vertical frame (21) and a movable frame (222) slidably connected to the fixed frame (221). The sliding direction of the movable frame (222) is perpendicular to the traveling direction of the vehicle body. The template (3) is connected to the movable frame (222).

5. The movable steel truss trolley for tall concrete sidewalls according to claim 4, characterized in that: The moving frame (222) is provided with a guide rail (2221), and a walking seat (223) is slidably connected to the guide rail (2221). The movement direction of the walking seat (223) is parallel to the travel direction of the vehicle body (1), and the template (3) is connected to the walking seat (223).

6. A method for formwork construction of a movable steel truss trolley for tall concrete sidewalls, characterized in that: The movable steel truss trolley for tall concrete sidewalls as described in any one of claims 1-5 is used. Erect and fix the ground rails on the base, and drive the vehicle to the end of the steel mesh to carry out the formwork work; install the formwork in pairs in the corresponding positions, use the lifting rope to adjust the formwork to ten centimeters away from the base, adjust the position of the formwork so that it is in the installation position, and place the formwork on the base; The connecting pipe extends from the template and is inserted into the lifting hole; the templates are set in pairs, and the pairs of templates are fixed together by tie rods.

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