Aerial injection device for concrete of bite pile

Abstract

This invention discloses a high-altitude concrete pouring device for interlocking piles, comprising a pouring hopper and a lifting lug fixed to the pouring hopper. A mixing frame is rotatably connected to the inner side of the pouring hopper, and a gear drive assembly for driving the mixing frame to rotate is installed on the pouring hopper. The gear drive assembly is driven by a rack drive component that slides vertically on the outer side of the pouring hopper. In this invention, the rotation of the mixing frame drives the concrete raw materials in the pouring hopper to mix. When the pouring hopper is hoisted above the funnel to be poured, a crane lowers the pouring hopper. During the descent of the pouring hopper, the edge of the funnel exerts an upward squeezing force on the connecting rod opening and closing assembly, thereby driving the opening and closing cover plate to rotate and separate from the bottom outlet of the discharge pipe. This solves the problems of traditional pouring hoppers being difficult to automatically unload and concrete segregation caused by prolonged static placement of concrete materials in the pouring hopper.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology, and more particularly to a device for high-altitude concrete pouring of interlocking piles. Background Technology

[0002] Interlocking piles are a type of foundation pit retaining structure in which piles interlock with each other. The piles are arranged alternately with one unreinforced plain concrete pile (Pile A) and one reinforced concrete pile (Pile B). During construction, pile A is constructed first, followed by pile B. Pile B is constructed after the initial setting of pile A's concrete but before its final setting. Both pile A and pile B are constructed using a full-casing drilling rig, cutting away the concrete at the intersection of adjacent pile A to achieve interlocking and form a continuous, waterproof, and retaining structure with excellent seepage prevention.

[0003] Drilled interlocking piles are widely used as a support and retaining structure in deep foundation pit construction. Due to the long pile body, the molding of a single pile requires the pouring of a large amount of concrete, especially for full-casing interlocking piles with long casings, where high-altitude concrete pouring is quite difficult.

[0004] Currently, the method for pouring high-altitude concrete for interlocking piles generally involves using a crane to lift the concrete-filled hopper into position, and then using auxiliary lifting devices or manual operation to open the valve for pouring. This method is inconvenient. If the valve could be automatically opened after the hopper is lifted into position, the convenience and efficiency of the pouring operation could be significantly improved. Furthermore, during the process from when the concrete is transported to the hopper until it is lifted into position, the concrete remains stationary for a long time. In concrete, water has a relatively low density, while materials such as sand and gravel have a higher density. Although there are gelling materials, once the concrete remains stationary for a long time, the sand and gravel will still settle to the bottom, causing segregation. This leads to uneven concrete, reducing its strength. At the same time, it causes changes in the slump of different layers of concrete, resulting in discontinuity in the concrete pouring process. Consequently, air bubbles may appear in the formed interlocking pile, affecting the quality of the interlocking pile. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of traditional grouting hoppers being unable to achieve automatic unloading and concrete segregation caused by prolonged static placement of concrete materials in the grouting hopper, and to propose a high-altitude grouting device for interlocking pile concrete.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for high-altitude concrete pouring of interlocking piles includes a pouring hopper and a lifting lug fixed to the pouring hopper. A mixing frame is rotatably connected to the inner side of the pouring hopper. A gear drive assembly for driving the mixing frame to rotate is installed on the pouring hopper. The gear drive assembly is driven by a rack drive member that slides vertically on the outer side of the pouring hopper. The gear drive assembly includes drive gears installed on both sides of the top of the pouring hopper and meshing with the rack drive member. Two drive gears are installed at both ends of a support shaft that rotates on the top of the pouring hopper. An active bevel gear is coaxially fixedly connected to the outer circumference of the support shaft. A driven bevel gear that meshes with the active bevel gear is fixedly connected to the top of the rotating shaft of the mixing frame. An opening and closing cover plate for opening and closing the bottom outlet of the pouring hopper is rotatably connected to the outside of the bottom outlet pipe. The opening and closing cover plate is driven to rotate by a connecting rod opening and closing assembly installed on the pouring hopper. The connecting rod opening and closing assembly drives the opening and closing cover plate to rotate and open under the action of an upward driving force.

[0008] As a further description of the above technical solution:

[0009] The discharge pipe has a hemispherical structure, and the opening and closing cover plate is close to the outer wall of the discharge pipe on the side near the discharge pipe.

[0010] As a further description of the above technical solution:

[0011] The linkage opening and closing assembly includes an L-shaped rotating rod hinged to the filling hopper. The hinge point between the L-shaped rotating rod and the filling hopper is located at the right-angle node of the L-shaped rotating rod. One end of the L-shaped rotating rod is connected to the opening and closing cover plate by a transmission link that is hinged to both the L-shaped rotating rod and the opening and closing cover plate.

[0012] As a further description of the above technical solution:

[0013] The end of the L-shaped rotating rod away from the transmission connecting rod rotates upward, driving the opening and closing cover plate to rotate upward and separate from the discharge port of the discharge pipe.

[0014] As a further description of the above technical solution:

[0015] The end of the L-shaped rotating rod away from the transmission link is fixedly connected to a counterweight block that can drive the opening and closing cover to rotate downwards, and the side of the discharge pipe away from the L-shaped rotating rod is fixedly connected to a limiting baffle for limiting the rotation of the opening and closing cover.

[0016] As a further description of the above technical solution:

[0017] An installation frame is fixedly connected to the inner side of the injection hopper, and the mixing frame rotates on the installation frame.

[0018] As a further description of the above technical solution:

[0019] The lower parts of both sides of the injection hopper are fixedly connected to mounting ear plates. The rack drive includes a sliding plate that is vertically slidably connected to the mounting ear plates and a drive rack that is fixed on the sliding plate and meshes with the drive gear. The upper positioning plate and the lower positioning plate are fixedly connected to the side wall of the sliding plate near the mounting ear plates above and below, respectively.

[0020] As a further description of the above technical solution:

[0021] A base is provided below the injection hopper, and support plates are fixedly connected to both sides of the top of the base. An upper baffle and a lower baffle, which are arranged in parallel and spaced apart, are fixedly connected to the side of the support plate near the injection hopper. The upper positioning plate is located between the upper baffle and the lower baffle.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] By connecting the lifting rope hook to the lifting lug, the crane pulls the rope to lift the hopper. During lifting, the rack and pinion drive unit is restricted to move upwards with the hopper. As the hopper is lifted upwards, the rack and pinion drive unit slides downwards relative to the hopper, causing the drive gear of the rack and pinion drive unit to mesh and drive the drive gear and support shaft to rotate. This, in turn, drives the active bevel gear to rotate and mesh with the driven bevel gear, thereby driving the mixing frame to rotate. This mixes the concrete materials in the hopper, preventing segregation or solidification of the concrete materials. When the hopper is lifted above the funnel to be filled, the crane lowers the hopper. During the descent... In the process, the edge of the funnel abuts against the connecting rod opening and closing assembly. Due to the large overall weight of the hopper, during the descent of the hopper, the edge of the funnel restricts the rack drive component from moving downwards synchronously with the hopper. As a result, the rack drive component slides upwards relative to the hopper. Similarly, it drives the mixing frame to mix the material again. At the same time, the edge of the funnel generates an upward squeezing force on the connecting rod opening and closing assembly, thereby driving the opening and closing cover plate to rotate and separate from the bottom outlet of the discharge pipe. After the hopper descends to its final position, the opening and closing cover plate completely separates from the outlet, realizing automatic unloading after the hopper is hoisted into place. This solves the problems of traditional hoppers being difficult to automatically unload and concrete segregation caused by prolonged static placement of concrete materials in the hopper. Attached Figure Description

[0024] Figure 1 A three-dimensional structural schematic diagram according to the present invention is shown;

[0025] Figure 2 A three-dimensional top view of the structure according to the present invention is shown;

[0026] Figure 3 This is a three-dimensional structural diagram of the opening and closing cover plate of the filling hopper in the closed state according to an embodiment of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the opening and closing cover of the filling hopper provided according to an embodiment of the present invention in the open state;

[0028] Legend:

[0029] 1. Base; 2. Filling hopper; 201. Mounting ear plate; 202. Lifting ear; 3. Discharge pipe; 301. Discharge port; 302. Limiting baffle; 4. Opening and closing cover plate; 5. Support plate; 501. Upper baffle; 502. Lower baffle; 6. Slide plate; 601. Upper positioning plate; 602. Lower positioning plate; 7. Drive rack; 8. Support shaft; 9. Drive gear; 10. Active bevel gear; 11. Driven bevel gear; 12. Mixing rack; 13. Mounting frame; 14. Transmission connecting rod; 15. L-shaped rotating rod; 1501. Counterweight. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-4 This invention provides a technical solution: a high-altitude concrete pouring device for interlocking piles, comprising a pouring hopper 2 and a lifting lug 202 fixed on the pouring hopper 2. A mixing frame 12 is rotatably connected to the inner side of the pouring hopper 2. A gear drive assembly for driving the mixing frame 12 to rotate is installed on the pouring hopper 2. The gear drive assembly is driven by a rack drive component that slides vertically on the outer side of the pouring hopper 2. The gear drive assembly includes two drive gears 9 installed on both sides of the top of the pouring hopper 2 and meshing with the rack drive component. 9 is installed at both ends of the support shaft 8 that rotates on the top of the filling hopper 2. The outer periphery of the support shaft 8 is coaxially fixedly connected with the active bevel gear 10. The top of the rotating shaft of the mixing frame 12 is fixedly connected with the driven bevel gear 11 that meshes with the active bevel gear 10. The bottom discharge pipe 3 of the filling hopper 2 is rotatably connected to the outside of the opening and closing cover plate 4 for opening and closing the bottom discharge port 301 of the discharge pipe 3. The opening and closing cover plate 4 is driven to rotate by the connecting rod opening and closing assembly installed on the filling hopper 2. Under the action of the upward driving force, the connecting rod opening and closing assembly drives the opening and closing cover plate 4 to rotate and open.

[0032] By connecting the lifting hook of the hoisting rope to the lifting lug 202, the crane pulls the hoisting rope to lift the hopper 2. During the lifting process, the rack and pinion drive is restricted to move upward with the hopper 2. As the hopper 2 is lifted upward, the rack and pinion drive slides downward relative to the hopper 2, thereby engaging the drive gear 9 of the rack and pinion drive, driving the drive gear 9 and the support shaft 8 to rotate. This drives the active bevel gear 10 to rotate and engage with the driven bevel gear 11, thereby driving the mixing frame 12 to rotate, thus mixing the concrete raw materials in the hopper 2, thereby preventing the concrete raw materials in the hopper 2 from segregating or solidifying. When the hopper 2 is lifted above the funnel to be poured, the crane lowers the hopper 2. During the descent process... In the process, the edge of the funnel abuts against the connecting rod opening and closing assembly. Due to the large overall weight of the hopper 2, during the descent of the hopper 2, the edge of the funnel restricts the rack drive component from moving downward synchronously with the hopper 2. As a result, the rack drive component slides upward relative to the hopper 2. Similarly, it drives the mixing frame 12 to mix the material again. At the same time, the edge of the funnel will generate an upward squeezing force on the connecting rod opening and closing assembly, thereby driving the opening and closing cover plate 4 to rotate and separate from the bottom outlet 301 of the discharge pipe 3. After the hopper 2 descends to the position, the opening and closing cover plate 4 is completely separated from the outlet 301, realizing automatic unloading after the hopper 2 is hoisted into place. This solves the problem that traditional hopper 2 is difficult to achieve automatic unloading and that concrete segregation occurs due to the long-term static state of concrete material in the hopper 2.

[0033] Specifically, such as Figure 3 and Figure 4 As shown, the discharge pipe 3 has a hemispherical structure. The opening and closing cover plate 4 is close to the outer wall of the discharge pipe 3 on one side. The connecting rod opening and closing assembly includes an L-shaped rotating rod 15 that is hinged to the filling hopper 2. The hinge point between the L-shaped rotating rod 15 and the filling hopper 2 is located at the right angle node of the L-shaped rotating rod 15. One end of the L-shaped rotating rod 15 is connected to the opening and closing cover plate 4 by a transmission connecting rod 14 that is hinged to both the L-shaped rotating rod 15 and the opening and closing cover plate 4. The end of the L-shaped rotating rod 15 away from the transmission connecting rod 14 rotates upward, driving the opening and closing cover plate 4 to rotate upward and separate from the discharge port 301 of the discharge pipe 3. The end of the L-shaped rotating rod 15 away from the transmission connecting rod 14 is fixedly connected to a counterweight block 1501 that can drive the opening and closing cover plate 4 to rotate downward. The side of the discharge pipe 3 away from the L-shaped rotating rod 15 is fixedly connected to a limiting baffle 302 for limiting the rotation of the opening and closing cover plate 4.

[0034] The L-shaped rotating rod 15 is hinged to the hopper 2 at its right-angle node, forming a lever along the node. When the end of the L-shaped rotating rod 15 away from the transmission link 14 is subjected to the upward squeezing force of the funnel, the L-shaped rotating rod 15 rotates along its node, causing the hinged end of the L-shaped rotating rod 15 to pull the transmission link 14 to rotate. The transmission link 14 drives the opening and closing cover 4 to rotate until it separates from the discharge port 301, thus achieving unloading. Conversely, when the L-shaped rotating rod 15 rotates downward, it can also drive the opening and closing cover 4 to rotate downward to block the discharge port 301. The counterweight 1501 is set so that when the hopper 2 is hoisted upward, the counterweight 1501 drives the transmission link 14 to rotate under the action of gravity, thereby driving the opening and closing cover 4 to rotate to block the discharge port 301, preventing the waste of the remaining concrete material in the hopper 2, and realizing the automatic unloading and automatic closing of the hopper 2.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, a mounting frame 13 is fixedly connected to the inner side of the hopper 2, and the mixing frame 12 rotates on the mounting frame 13. Mounting ear plates 201 are fixedly connected to the lower parts of both sides of the hopper 2. The rack and pinion drive includes a sliding plate 6 that is vertically slidably connected to the mounting ear plate 201 and a drive rack 7 that is fixed on the sliding plate 6 and meshes with the drive gear 9. An upper positioning plate 601 and a lower positioning plate 602 are fixedly connected to the upper and lower sides of the side wall of the sliding plate 6 near the mounting ear plate 201, respectively. A base 1 is provided below the hopper 2. Support plates 5 are fixedly connected to both sides of the top of the base 1. An upper baffle 501 and a lower baffle 502 that are parallel and spaced apart vertically are fixedly connected to the side of the support plate 5 near the hopper 2. The upper positioning plate 601 is located between the upper baffle 501 and the lower baffle 502.

[0036] Before filling the hopper 2 with concrete, move the hopper 2 above the base 1 and move the lower positioning plate 602 between the upper baffle 501 and the lower baffle 502. At this time, the hopper 2 will slide downward under its own weight until the mounting ear plate 201 abuts against the lower positioning plate 602, thereby supporting the entire hopper 2 through the lower positioning plate 602. Then, the concrete material is transported to the inside of the hopper 2. During hoisting, first use a crane to hoist the hopper 2 vertically upward. At this time, due to the lower positioning plate... Position 602 is located between the upper baffle 501 and the lower baffle 502. Limited by the upper baffle 501, the lower positioning plate 602 cannot move upwards with the filling hopper 2. Therefore, the lower positioning plate 602 and the slide plate 6 move downwards relative to the filling hopper 2. When the slide plate 6 moves downwards relative to the filling hopper 2, it drives the drive rack 7 to move synchronously. Through the meshing transmission between the drive rack 7 and the drive gear 9 as the drive rack 7 moves downwards, the drive gear 9 and the support shaft 8 rotate. When the support shaft 8 and the active bevel gear 10 rotate synchronously, the active bevel gear 10... The driven bevel gear 11 engages with the mixing frame 12, thereby driving it to rotate. This mixes the concrete raw materials in the hopper 2, flushing out any segregation that occurred during the waiting period for hoisting. When the hopper 2 moves upward until the mounting ear plate 201 abuts against the upper positioning plate 601, it reaches its maximum upward position. At this point, the crane lifts the hopper 2 horizontally until the lower positioning plate 602 is misaligned with the upper baffle 501. Then, the hopper 2 continues to be hoisted upward to the concrete injection funnel. After the upper part is lifted, the pouring hopper 2 is lowered so that the lower positioning plate 602 abuts against the edge of the funnel. At this time, the pouring hopper 2 continues to be lowered. At this time, the upper positioning plate 601 cannot move down synchronously with the pouring hopper 2 due to the restriction of the edge of the funnel. This causes the upper positioning plate 601 and the slide plate 6 to slide upward relative to the pouring hopper 2. Similarly, when the slide plate 6 moves upward, it drives the mixing frame 12 to rotate again, thereby mixing the concrete in the pouring hopper 2 again, further preventing the concrete in the pouring hopper 2 from segregating during the lifting process.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for high-altitude concrete pouring of interlocking piles, comprising a pouring hopper (2) and a lifting lug (202) fixed on the pouring hopper (2), characterized in that, A stirring frame (12) is rotatably connected to the inner side of the filling hopper (2). A gear drive assembly for driving the stirring frame (12) to rotate is installed on the filling hopper (2). The gear drive assembly is driven by meshing with a rack drive member that slides vertically on the outer side of the filling hopper (2). The gear drive assembly includes drive gears (9) installed on both sides of the top of the filling hopper (2) and meshing with the rack drive member. The two drive gears (9) are installed at both ends of a support shaft (8) that rotates on the top of the filling hopper (2). (8) is coaxially fixedly connected to an active bevel gear (10), and the top of the rotating shaft of the stirring frame (12) is fixedly connected to a driven bevel gear (11) that meshes with the active bevel gear (10). The bottom discharge pipe (3) of the filling hopper (2) is rotatably connected to an opening and closing cover plate (4) for opening and closing the bottom discharge port (301) of the discharge pipe (3). The opening and closing cover plate (4) is driven to rotate by a connecting rod opening and closing assembly installed on the filling hopper (2). The connecting rod opening and closing assembly drives the opening and closing cover plate (4) to rotate and open under the action of an upward driving force. During the descent of the hopper (2), the edge of the hopper abuts against the connecting rod opening and closing assembly, and the edge of the hopper will exert an upward squeezing force on the connecting rod opening and closing assembly; The discharge pipe (3) has a hemispherical structure, and the opening and closing cover plate (4) is close to the outer wall of the discharge pipe (3) on one side; The linkage opening and closing assembly includes an L-shaped rotating rod (15) hinged to the filling hopper (2). The hinge point between the L-shaped rotating rod (15) and the filling hopper (2) is located at the right-angle node of the L-shaped rotating rod (15). One end of the L-shaped rotating rod (15) is connected to the opening and closing cover plate (4) by a transmission connecting rod (14) that is hinged to both the L-shaped rotating rod (15) and the opening and closing cover plate (4). The L-shaped rotating rod (15) rotates upward at the end away from the transmission connecting rod (14), driving the opening and closing cover plate (4) to rotate upward and separate from the discharge port (301) of the discharge pipe (3); The L-shaped rotating rod (15) is fixedly connected to a counterweight (1501) that can drive the opening and closing cover (4) to rotate downward at one end away from the transmission link (14), and a limiting baffle (302) for limiting the rotation of the opening and closing cover (4) is fixedly connected to the side of the discharge pipe (3) away from the L-shaped rotating rod (15).

2. The device for high-altitude concrete pouring of interlocking piles according to claim 1, characterized in that, The inner side of the injection hopper (2) is fixedly connected to the mounting frame (13), and the mixing frame (12) rotates on the mounting frame (13).

3. The device for high-altitude concrete pouring of interlocking piles according to claim 1, characterized in that, The lower sides of the filling hopper (2) are fixedly connected with mounting ear plates (201). The rack drive includes a sliding plate (6) that is vertically slidably connected to the mounting ear plate (201) and a drive rack (7) that is fixed on the sliding plate (6) and meshes with the drive gear (9). The upper positioning plate (601) and the lower positioning plate (602) are fixedly connected to the side wall of the sliding plate (6) near the mounting ear plate (201) above and below, respectively.

4. The device for high-altitude concrete pouring of interlocking piles according to claim 3, characterized in that, A base (1) is provided below the hopper (2). Support plates (5) are fixedly connected to both sides of the top of the base (1). An upper baffle (501) and a lower baffle (502) are fixedly connected to the side of the support plate (5) near the hopper (2) and are arranged in parallel. The upper positioning plate (601) is located between the upper baffle (501) and the lower baffle (502).

Images