Height-adjustable movable concrete distribution frame

Abstract

The utility model discloses a height-adjustable movable concrete distributing frame, which relates to the field of bridge floor construction and comprises a support. The universal wheels are located at the bottom end of the support and used for moving the support; the lifting mechanism is arranged in the middle of the top of the support; the rotary fixing mechanism is arranged at the top end of the lifting mechanism; and the concrete distribution mechanism is arranged at the top of the rotary fixing mechanism, is used for conveying concrete to a preset position and is matched with the lifting mechanism and the rotary fixing mechanism to adjust the position and angle of the concrete distribution mechanism. The device has good mobility, and the position of the device can be quickly adjusted on a construction site; through the combined design of the lifting mechanism, the rotary fixing mechanism and the concrete distributing mechanism, multi-degree-of-freedom adjustment in the height direction, the angle direction and the horizontal direction during concrete distributing is achieved, and complex areas such as a bridge floor three-wall formwork can be accurately aligned for distributing.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck construction, specifically to a height-adjustable mobile concrete placing frame. Background Technology

[0002] In bridge engineering, lightweight formwork for the bridge deck's crash barriers and central dividers is often used. A mobile concrete placing boom is a device designed to address the problem of uneven concrete distribution during pouring. It can be flexibly moved according to the actual needs of the construction site, thus achieving efficient and uniform concrete distribution.

[0003] Patent application number 202322973814.0 discloses a mobile concrete placing device, in which a material blocking groove is set between the hopper and the mold. The design of the material blocking groove ensures that the material can fall into the mold, reducing the intensity of manual operation. However, this mobile concrete placing device only refers to the hopper covering the mold and moving horizontally above the mold; the device as a whole cannot be easily moved.

[0004] Patent application number 202320352763.7 discloses a height-adjustable movable tunnel pavement concrete placing support. Its material trough is arranged horizontally downwards from the outside to the inside, allowing concrete to flow inwards along the bottom of the trough and then into the formwork from the outer and inner placing ports. However, the placing port of this height-adjustable movable tunnel pavement concrete placing support is located near the middle of the base frame, making it difficult to effectively pour concrete at the lightweight formwork of the three walls of the bridge deck.

[0005] Furthermore, when pouring concrete at the lightweight formwork of the three walls of the bridge deck, the construction requirements vary at different locations, such as height requirements and the distance between the concrete placing frame and the formwork. Existing technologies cannot adjust the placing pipe with multiple degrees of freedom in terms of height, angle, and horizontal direction, which affects the efficiency during the actual pouring process.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0007] In view of the problems in the related technologies, this utility model proposes a height-adjustable mobile concrete placing frame to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by this utility model is as follows:

[0009] A height-adjustable mobile concrete placing frame includes a support frame; casters located at the bottom of the support frame for moving the support frame; a lifting mechanism located at the top center of the support frame; a rotating and fixing mechanism located at the top of the lifting mechanism; and a concrete placing mechanism located at the top of the rotating and fixing mechanism for conveying concrete to a preset position and cooperating with the lifting mechanism and the rotating and fixing mechanism to adjust the position and angle of the concrete placing mechanism; a transverse reinforcing bar is provided at the middle position of the support frame, and longitudinal reinforcing bars are provided on both sides of the transverse reinforcing bar.

[0010] Furthermore, in order to raise and lower the concrete placing mechanism as needed, the lifting mechanism includes a fixed column located at the middle of the top of the support frame. The fixed column has a groove inside, and a screw is screwed to the bottom of the groove inside the fixed column. The top of the screw extends into the groove, and the bottom of the screw extends to the bottom of the fixed column. A slider that slides in contact with the groove is provided at the top of the screw. A connecting rod is provided at the top of the slider. The top of the connecting rod extends to the top of the fixed column and is connected to the rotating fixing mechanism. A rotating handle is provided at the bottom of the screw, and a grip is provided at the end of the rotating handle. A cap is provided at the top of the fixed column outside the connecting rod.

[0011] Furthermore, in order to rotate the concrete placing mechanism as needed, the rotating fixing mechanism includes a fixing plate set at the top of the lifting mechanism. The top of the fixing plate has an open structure, and a rotating shaft is set inside the fixing plate. A fan-shaped plate is sleeved on the outer side of the end of the rotating shaft, and several first circular holes are set along the edge of the fan-shaped plate. A first bolt is screwed to the side wall of the fixing plate, and a first positioning pin is set at the end of the first bolt near the fan-shaped plate, and the first positioning pin is located in the first circular hole.

[0012] Furthermore, in order to support and guide the concrete flow to the target area, the concrete placing mechanism includes a collar sleeved on the outside of the rotating shaft. A pipe fixing block is provided at the top of the collar, and a placing pipe is inserted inside the pipe fixing block. Several second circular holes are provided at the top of the placing pipe. A second bolt is screwed to the top of the pipe fixing block. A second positioning pin is provided at the bottom of the second bolt, and the second positioning pin is located in the second circular hole. The second positioning pin is clearance-fitted with the second circular hole, and the first positioning pin is clearance-fitted with the first circular hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) This utility model has good mobility and can quickly adjust the position on the construction site; through the combined design of the lifting mechanism, the rotating fixing mechanism and the concrete placing mechanism, it can realize the multi-degree-of-freedom adjustment in height, angle and horizontal direction when placing concrete, and can accurately place concrete in complex areas such as the three wall templates of the bridge deck.

[0015] (2) By setting up a lifting mechanism, the concrete placing mechanism can be raised and lowered according to the needs, adapting to different construction height requirements and expanding the applicability of the concrete placing frame.

[0016] (3) By setting a rotating and fixing mechanism, the concrete placing mechanism can be rotated as needed and the rotation angle can be locked to achieve angle fixation. This allows the concrete placing mechanism to rotate and lock within a certain range, making it easier to align with template areas in different directions and improving the placement accuracy. By setting a concrete placing mechanism, the concrete can be supported and guided to the target area. The placing pipe can be moved in the horizontal direction and locked, so that the outlet of the placing pipe can be more accurately aligned with the area where concrete needs to be added. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a height-adjustable movable concrete placing rack according to an embodiment of the present utility model;

[0019] Figure 2 This is a structural schematic diagram of the lifting mechanism in a height-adjustable mobile concrete placing rack according to an embodiment of the present utility model.

[0020] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the lifting mechanism in a height-adjustable mobile concrete placing rack according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the rotating and fixing mechanism in a height-adjustable mobile concrete placing frame according to an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the rotating and fixing mechanism in a height-adjustable mobile concrete placing frame according to an embodiment of the present utility model, taken from another angle.

[0024] Figure 7 This is a structural schematic diagram of a concrete placing mechanism in a height-adjustable mobile concrete placing frame according to an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Bracket; 2. Casters; 3. Lifting mechanism; 301. Fixed column; 302. Slide groove; 303. Screw; 304. Slider; 305. Connecting rod; 306. Rotating handle; 307. Grip part; 308. Cover; 4. Rotating fixing mechanism; 401. Fixed plate; 402. Rotating shaft; 403. Sector plate; 404. First circular hole; 405. First bolt; 406. First positioning pin; 5. Concrete placing mechanism; 501. Collar; 502. Pipe fixing block; 503. Concrete placing pipe; 504. Second circular hole; 505. Second bolt; 506. Second positioning pin; 6. Lateral reinforcing rod; 7. Longitudinal reinforcing rod. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a height-adjustable mobile concrete placing rack is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the height-adjustable mobile concrete placing frame according to an embodiment of the present invention includes a support 1; casters 2 located at the bottom of the support 1 for moving the support 1; a lifting mechanism 3 located at the top center of the support 1; a rotating fixing mechanism 4 located at the top of the lifting mechanism 3; and a concrete placing mechanism 5 located at the top of the rotating fixing mechanism 4 for conveying concrete to a preset position and cooperating with the lifting mechanism 3 and the rotating fixing mechanism 4 to adjust the position and angle of the concrete placing mechanism 5; a transverse reinforcing rod 6 is provided at the middle position of the support 1, and longitudinal reinforcing rods 7 are provided on both sides of the transverse reinforcing rod 6.

[0030] With the help of the above solution, this utility model has good mobility and can quickly adjust its position on the construction site; through the combined design of the lifting mechanism 3, the rotating fixing mechanism 4 and the concrete placing mechanism 5, it can achieve multi-degree-of-freedom adjustment in height, angle and horizontal direction when placing concrete, and can accurately place concrete in complex areas such as the three-wall formwork of the bridge deck.

[0031] In one embodiment, the lifting mechanism 3 includes a fixed column 301 positioned at the top center of the support 1. The fixed column 301 has a sliding groove 302 inside. A screw rod 303 is screwed into the bottom of the sliding groove 302 within the fixed column 301. The top of the screw rod 303 extends into the sliding groove 302, and the bottom of the screw rod 303 extends below the fixed column 301. A slider 304, which slides in contact with the sliding groove 302, is provided at the top of the slider 304. A connecting rod 305 is provided at the top of the slider 304, and the top of the connecting rod 305 extends above the fixed column 301 and connects to the rotating fixing mechanism 4. A rotating handle 306 is provided at the bottom of the screw rod 303, and a gripping part 307 is provided at the end of the rotating handle 306. A cap 308 is provided at the top of the fixed column 301 outside the connecting rod 305. This allows the concrete placing mechanism 5 to be raised and lowered as needed, adapting to different construction height requirements and expanding the applicability of the concrete placing frame.

[0032] Rotating the handle 306 located below the fixed column 301 causes the screw 303 to rotate. Since the slider 304 contacts the top of the screw 303 and slides within the groove 302, the slider 304 moves up and down along the groove 302 as the screw 303 rotates. Specifically, when the screw 303 rises, it pushes the slider 304 upwards; conversely, when the screw 303 rises, the slider 304 and the components above it descend under gravity. As the slider 304 moves up and down, the entire rotating fixing mechanism 4 and the concrete placing mechanism 5 above it also rise and fall accordingly. Once the desired height is reached, the rotation of the handle 306 is stopped. At this point, the threaded characteristics of the screw 303 are sufficient to maintain its current position.

[0033] In one embodiment, the rotating fixing mechanism 4 includes a fixing plate 401 disposed at the top of the lifting mechanism 3. The top of the fixing plate 401 is an open structure. A rotating shaft 402 is disposed inside the fixing plate 401. It should be noted that, in order to make the rotating shaft 402 more stable when rotating, bearings are provided at both ends of the rotating shaft 402. A fan-shaped plate 403 is sleeved on the outer side of the end of the rotating shaft 402. Several first circular holes 404 are provided along the edge of the fan-shaped plate 403. A first bolt 405 is screwed to the side wall of the fixing plate 401. A first positioning pin 406 is provided at the end of the first bolt 405 near the fan-shaped plate 403. The first positioning pin 406 is located in the first circular hole 404. Thus, the concrete placing mechanism 5 can be rotated as needed and the rotation angle can be locked to achieve angle fixation. This allows the concrete placing mechanism 5 to rotate and lock within a certain range, which is convenient for aligning with template areas in different directions and improving the accuracy of concrete placement.

[0034] The sector plate 403 in the rotating fixing mechanism 4 rotates with the rotating shaft 402. The sector plate 403 is provided with several first circular holes 404 for positioning. By loosening the first bolt 405, the first positioning pin 406 is disengaged from the first circular hole 404, at which point the sector plate 403 rotates freely; after finding a suitable angle, the first bolt 405 is tightened, so that the first positioning pin 406 is inserted into the corresponding first circular hole 404, thereby locking the rotation angle and ensuring that the concrete placing mechanism 5 can stably stay at the required angle position.

[0035] In one embodiment, the concrete placing mechanism 5 includes a collar 501 sleeved on the outside of the rotating shaft 402. When the rotating shaft 402 rotates, the collar 501 rotates accordingly, thereby driving the entire concrete placing mechanism 5 to rotate. A pipe fixing block 502 is provided at the top of the collar 501, and a placing pipe 503 is inserted inside the pipe fixing block 502. A plurality of second circular holes 504 are provided at the top of the placing pipe 503. A second bolt 505 is screwed to the top of the pipe fixing block 502. A second positioning pin 506 is provided at the bottom of the second bolt 505, and the second positioning pin 506 is located in the second circular holes 504, thereby supporting and guiding the concrete to the target area. The placing pipe 503 can be moved horizontally and locked, so that the outlet of the placing pipe 503 can be more accurately aligned with the area where concrete needs to be added.

[0036] Rotating the second bolt 505 can raise and lower the second positioning pin 506, thereby adjusting the horizontal position of the concrete placing pipe 503 by connecting the second positioning pin 506 to different second circular holes 504 on the concrete placing pipe 503. The concrete placing pipe 503 is inserted inside the pipe fixing block 502 and is responsible for transporting concrete from the pumping system to the designated pouring location.

[0037] In order for the second positioning pin 506 and the first positioning pin 406 to be smoothly inserted into the second round hole 504 and the first round hole 404, the second positioning pin 506 is clearance-fitted with the second round hole 504, and the first positioning pin 406 is clearance-fitted with the first round hole 404.

[0038] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0039] First, confirm that all components are intact, especially whether the casters 2 can roll normally and whether the connections between the mechanisms are secure. Use the casters 2 to push the entire concrete placing frame to the vicinity of the construction point, as close as possible to the formwork to be poured or other locations. Based on actual needs, roughly determine the initial position of the concrete placing pipe 503, including its height and angle.

[0040] Rotate the handle 306 of the lifting mechanism 3, which drives the slider 304 to move up and down via the screw 303, thereby adjusting the height of the concrete placing mechanism 5 until the construction requirements are met. Loosen the first bolt 405, allow the sector plate 403 to rotate, find a suitable tilt angle, and then tighten the first bolt 405 to insert the first positioning pin 406 into the corresponding first round hole 404 to lock the angle. If further precise adjustment of the concrete outlet position is required, loosen the second bolt 505, move the concrete placing pipe 503 to the ideal position, and then tighten the second bolt 505 again to ensure that the second positioning pin 506 is inserted into the corresponding second round hole 504 for fixation.

[0041] Connect the concrete pump truck or other supply equipment to the placing pipe 503, start the pumping system, and begin injecting concrete into the formwork. Specifically, during concrete pouring, one end of the placing pipe 503 is connected to the concrete pump truck, which is equipped with a pumping system capable of efficiently delivering concrete to the designated location through the pipe. The pump truck's delivery pipe is connected to the placing pipe 503 using a quick-connect coupling to ensure a tight seal and easy assembly / disassembly. The other end of the placing pipe 503 is aligned with the area to be poured.

[0042] After the concrete pouring is completed, the placing boom 503 is cleaned. High-pressure water cleaning is typically used to flush away any remaining concrete inside the placing boom 503. For areas that are difficult to clean, a specialized cleaning ball is used, propelled into the pipe by water pressure, to remove stubborn residue.

[0043] In summary, this utility model possesses excellent mobility, enabling rapid position adjustment on the construction site. Through the combined design of the lifting mechanism 3, the rotating and fixing mechanism 4, and the concrete placing mechanism 5, it achieves multi-degree-of-freedom adjustment in height, angle, and horizontal direction during concrete placing, allowing for precise alignment with complex areas such as the bridge deck formwork. The lifting mechanism 3 allows for raising and lowering the concrete placing mechanism 5 as needed, adapting to different construction height requirements and expanding the applicability of the concrete placing frame. The rotating and fixing mechanism 4 allows for rotation of the concrete placing mechanism 5 as needed, locking the rotation angle to achieve angle fixation. This allows the concrete placing mechanism 5 to rotate and lock within a certain range, facilitating alignment with formwork areas in different directions and improving placing accuracy. The concrete placing mechanism 5 supports and guides the concrete flow to the target area and allows for horizontal movement and locking of the placing pipe 503, enabling the outlet of the placing pipe 503 to be more accurately aligned with the area requiring concrete addition.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable mobile concrete placing rack, characterized in that, include: Frame (1); The caster wheel (2) is located at the bottom of the bracket (1) and is used to move the bracket (1); The lifting mechanism (3) is located at the top center of the bracket (1); A rotating fixing mechanism (4) is located at the top of the lifting mechanism (3); The concrete placing mechanism (5) is located on top of the rotating fixing mechanism (4) and is used to transport concrete to a preset position. It cooperates with the lifting mechanism (3) and the rotating fixing mechanism (4) to adjust the position and angle of the concrete placing mechanism (5).

2. The height-adjustable mobile concrete placing rack according to claim 1, characterized in that, A transverse reinforcing rod (6) is provided in the middle of the bracket (1), and longitudinal reinforcing rods (7) are provided on both sides of the transverse reinforcing rod (6).

3. The height-adjustable mobile concrete placing rack according to claim 1, characterized in that, The lifting mechanism (3) includes a fixed column (301) located at the middle of the top of the bracket (1). The fixed column (301) has a sliding groove (302) inside. A screw (303) is screwed into the bottom of the sliding groove (302) and inside the fixed column (301). The top of the screw (303) extends into the sliding groove (302), and the bottom of the screw (303) extends below the fixed column (301). The top end of the screw (303) is provided with a slider (304) that slides in cooperation with the slide groove (302). The top end of the slider (304) is provided with a connecting rod (305). The top end of the connecting rod (305) extends above the fixed column (301) and is connected to the rotating fixing mechanism (4).

4. The height-adjustable mobile concrete placing rack according to claim 3, characterized in that, The bottom end of the screw (303) is provided with a rotating handle (306), and the end of the rotating handle (306) is provided with a gripping part (307).

5. A height-adjustable mobile concrete placing rack according to claim 3, characterized in that, A cap (308) is provided at the top of the fixing column (301) and on the outside of the connecting rod (305).

6. A height-adjustable mobile concrete placing rack according to claim 1, characterized in that, The rotating fixing mechanism (4) includes a fixing plate (401) disposed at the top of the lifting mechanism (3). The top of the fixing plate (401) is an open structure, and a rotating shaft (402) is disposed inside the fixing plate (401). A fan-shaped plate (403) is sleeved on the outer side of the end of the rotating shaft (402), and a plurality of first circular holes (404) are provided along the edge of the fan-shaped plate (403); A first bolt (405) is screwed onto the side wall of the fixing plate (401). A first positioning pin (406) is provided at one end of the first bolt (405) near the sector plate (403), and the first positioning pin (406) is located in the first circular hole (404).

7. A height-adjustable mobile concrete placing rack according to claim 6, characterized in that, The concrete placing mechanism (5) includes a collar (501) sleeved on the outside of the rotating shaft (402), a pipe fixing block (502) is provided at the top of the collar (501), and a placing pipe (503) is inserted inside the pipe fixing block (502). The top end of the fabric pipe (503) is provided with a plurality of second round holes (504), the top end of the pipe fixing block (502) is screwed with a second bolt (505), the bottom end of the second bolt (505) is provided with a second positioning pin (506), and the second positioning pin (506) is located in the second round hole (504).

8. A height-adjustable mobile concrete placing rack according to claim 7, characterized in that, The second positioning pin (506) is clearance-fitted with the second round hole (504), and the first positioning pin (406) is clearance-fitted with the first round hole (404).

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