A concrete hoist

Abstract

The utility model discloses a concrete hoisting tool, including concrete hoisting subassembly, concrete hoisting subassembly includes hopper, the inclined pipe of setting in the low end one side of hopper, and the lifting ring of welding respectively welding on the top of hopper and the upside of pipe, hopper outside is provided with hopper lifting subassembly, and hopper lifting subassembly includes two push rod a, guide frame, connecting arm and bottom plate, and guide frame includes respectively setting in the fixed link of two push rod a rear side and setting in the guide plate of two fixed link top between, and the guide link is arranged between guide plate and hopper, and the bottom plate is fixed in the bottom of push rod a, and the connecting arm is set between bottom plate and hopper. The utility model discloses through crane directly hoist hopper to floor operation point, spares unloading platform and handcart secondary transport, reduces the frequency of loading and unloading, avoids the spatter of concrete, and simultaneously utilizes push rod, guide link and connecting arm three collaborative lifting, realizes the stable lifting of hopper, and facilitates disposable unloading.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of concrete hoisting technology, and more specifically, to a concrete hoisting tool. Background Technology

[0002] In high-rise and super high-rise cast-in-place concrete construction, vertical transportation equipment is often unusable due to limited space or the lack of construction elevators. On-site, tower cranes or truck cranes are commonly used with conventional hoppers to lift concrete to an unloading platform, from where it is manually transported to the work surface. This method involves multiple loading and unloading operations involving lifting equipment, platforms, handcarts, and the pouring point, increasing labor and transportation costs. Furthermore, concrete spillage during transport leads to material waste and on-site pollution, significantly reducing construction efficiency. Therefore, a lifting tool is designed that can directly lift concrete to the work floor and unload it quickly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a concrete hoisting tool.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a concrete hoisting tool, including a concrete hoisting assembly. The concrete hoisting assembly includes a hopper, a guide pipe inclinedly disposed on one side of the lower end of the hopper, and lifting rings welded to the top of the hopper and the upper side of the guide pipe, respectively. A hopper lifting assembly is disposed on the outside of the hopper. The hopper lifting assembly includes two push rods a, a guide frame, a connecting arm, and a base plate. The guide frame includes fixed rods disposed on the rear side of the two push rods a and a guide plate disposed between the tops of the two fixed rods. A guide rod is disposed between the guide plate and the hopper. The base plate is fixed to the bottom of the push rods a, and the connecting arm is disposed between the base plate and the hopper.

[0005] Preferably, a fixing block screw is provided between the top of the push rod a and the top of the hopper, and at least three guide rods are provided on the rear side of the hopper, with baffles threaded to both the upper and lower ends of the guide rods.

[0006] Preferably, the baffle is fixed to the rear side of the hopper, the guide rod passes through the guide plate and is slidably connected to the guide plate, and the bottom end of the connecting arm is rotatably connected to the bottom plate.

[0007] Preferably, both sides of the hopper are fixed with connecting grooves for the connecting arm to slide, and a connecting block is provided between the upper end of the connecting arm and the connecting groove.

[0008] Preferably, the connecting block includes a cylinder rotatably connected to the connecting arm and a "T"-shaped block slidably connected to the connecting groove, wherein the cylinder has an "H" or "I" shaped cross-section and the cylinder and the "T"-shaped block are fixedly connected.

[0009] Preferably, the inner wall of the hopper is provided with a residual material shovel assembly, which includes a push rod b and a shovel blade. Both ends of the push rod b are fixed with connecting lugs, and a handle is provided between the connecting lug at the telescopic end of the push rod b and the shovel blade. The connecting lug and the handle are rotatably connected.

[0010] Preferably, a rotary motor is provided between the knife handle and the connecting ear, the output end of the rotary motor passes through the connecting ear and is connected to the knife handle for transmission, and the connecting ear at the rear end of the push rod b is rotatably connected to an installation block embedded in the inner wall of the hopper.

[0011] Preferably, a catheter lifting assembly is fitted on the outer side of the catheter. The catheter lifting assembly includes a push rod c, a clamp located at the top of the push rod c, and a support rod for supporting the push rod c. The clamp is fitted on the middle part of the catheter.

[0012] Preferably, the clamp includes two arc-shaped plates adapted to the conduit, one end of the arc-shaped plate is hinged and the other end is bolted, and the bottom of the push rod c is screwed with at least three inclined support rods.

[0013] Preferably, the conduit and the hopper are integrally formed, the front end of the hopper is tapered, and a valve is provided near the outlet of the conduit.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a crane to directly lift the hopper to the floor work point, eliminating the need for a loading platform and a handcart for secondary handling, reducing the number of loading and unloading operations, and preventing concrete spillage. At the same time, the push rod, guide rod, and connecting arm work together to lift the hopper smoothly, facilitating one-time unloading. This solves the problems of high labor intensity, material waste, and low construction efficiency caused by traditional secondary handling.

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is a schematic diagram of the connecting arm of this utility model; Figure 4 This is a cross-sectional structural diagram of the hopper of this utility model; Figure 5 This is a schematic diagram of the structure of the waste material removal component of this utility model; Figure 6 This is a side view of the structure of this utility model; Figure 7 This is a schematic diagram of the structure of the catheter lifting assembly of this utility model; In the diagram: 1. Concrete hoisting assembly; 11. Hopper; 12. Guide pipe; 13. Lifting ring; 2. Hopper lifting assembly; 21. Push rod a; 22. Fixed rod; 23. Guide plate; 24. Guide rod; 25. Baffle; 26. Connecting arm; 27. Base plate; 28. Connecting groove; 29. ​​Connecting block; 3. Residual material removal assembly; 31. Push rod b; 32. Connecting lug; 33. Blade handle; 34. Blade; 35. Rotary motor; 36. Mounting block; 4. Conduit lifting assembly; 41. Push rod c; 42. Clamp; 43. Bolt; 44. Support rod. Detailed Implementation

[0018] like Figure 1-7As shown, this utility model provides a concrete hoisting tool, including a steel concrete hoisting assembly 1. The concrete hoisting assembly 1 includes a hopper 11, a guide tube 12 inclinedly disposed on one side of the lower end of the hopper 11, and lifting rings 13 welded to the top of the hopper 11 and the upper side of the guide tube 12 respectively. A hopper lifting assembly 2 is disposed on the outside of the hopper 11. The hopper lifting assembly 2 includes two push rods a21, a guide frame, a connecting arm 26, and a base plate 27. The guide frame includes fixed rods 22 disposed on the rear side of the two push rods a21 respectively and a guide plate 23 disposed between the top of the two fixed rods 22. A guide rod 24 is disposed between the guide plate 23 and the hopper 11. The base plate 27 is fixed to the bottom of the push rods a21. The connecting arm 26 is disposed between the base plate 27 and the hopper 11.

[0019] Furthermore, in this embodiment, two push rods a21 are respectively placed behind the left and right sides of the hopper 11 to lift the rear side of the hopper 11 and tilt the hopper 11 for easy unloading. A fixing block screw is provided between the top of the push rod a21 and the top of the hopper 11. The push rod a21 is connected to the hopper 11 through the fixing block. The fixing block is welded to the hopper 11. At least three guide rods 24 are provided on the rear side of the hopper 11. Both the upper and lower ends of the guide rods 24 are threaded with baffles 25. The baffles 25 prevent the guide rods 24 from detaching from the guide plates 23.

[0020] Furthermore, the baffle 25 is fixed to the rear side of the hopper 11, the guide rod 24 passes through the guide plate 23 and is slidably connected to the guide plate 23, so that when the push rod a21 is lifted, the guide rod 24 moves synchronously in the guide plate 23 in the same direction as the push rod a21. The bottom end of the connecting arm 26 is rotatably connected to the base plate 27. The base plate 27 is used to centrally set the push rod a21, the fixed rod 22 and the connecting arm 26 on the same side.

[0021] Furthermore, both sides of the hopper 11 are fixed with connecting grooves 28 for the connecting arm 26 to slide. A connecting block 29 is provided between the upper end of the connecting arm 26 and the connecting groove 28. When the push rod a21 is lifted, the connecting arm 26 slides synchronously in the connecting grooves 28 on both sides of the hopper 11 through the connecting block 29. At the same time, the connecting arm 26 rotates on the connecting block 29 and the base plate 27 to adapt to the position change. The initial position of the connecting block 29 is located slightly above the middle position of the connecting groove 28. The sliding direction of the connecting block 29 is opposite to the lifting direction of the push rod a21, that is, the push rod a21 goes up and the connecting block 29 goes down. The connecting arm 26, the base plate 27 and the connecting groove 28 form a swing-slider composite mechanism. During the lifting process of the push rod a21, the swing component of the connecting arm 26 is released through the linear sliding of the "T" block in the connecting groove 28, thereby naturally forming a displacement component opposite to the direction of the push rod a21.

[0022] It should be noted that the main force-bearing components of the hopper 11 are the push rod a21, the guide rod 24 and the connecting arm 26 are designed to assist the lifting operation of the push rod a21, and to prevent instability during the lifting process of the hopper 11. Even if it is subjected to force, it is only a small part of the force.

[0023] Furthermore, the connecting block 29 includes a cylinder rotatably connected to the connecting arm 26 and a "T"-shaped block slidably connected to the connecting groove 28. The cylinder has an "H" or "I" shaped cross-section and is fixedly connected to the "T"-shaped block. The cylinder design enables the connection and rotation of the connecting arm 26 and the connecting block 29, while the "T"-shaped block enables sliding and is locked within the connecting groove 28.

[0024] Furthermore, a residual material scraping assembly 3 is provided on the inner wall of the hopper 11. The residual material scraping assembly 3 includes a push rod b31 and a scraper 34. Both ends of the push rod b31 are fixed with connecting ears 32. A handle 33 is provided between the connecting ear 32 at the telescopic end of the push rod b31 and the scraper 34. The connecting ear 32 and the handle 33 are rotatably connected. The push rod b31 is connected to the handle 33 of the scraper 34 through the connecting ear 32, thereby controlling the position of the scraper 34.

[0025] Furthermore, a rotary motor 35 is provided between the handle 33 and the connecting ear 32. The output end of the rotary motor 35 passes through the connecting ear 32 and is connected to the handle 33 for transmission. The rotary motor 35 controls the rotation of the handle 33 inside the connecting ear 32, thereby adjusting the shoveling angle of the shovel 34. This facilitates the shoveling out of the concrete remaining in the hopper 11. Since the hopper 11 is quite deep, it is difficult to shovel it out manually. The connecting ear 32 at the rear end of the push rod b31 is rotatably connected to an installation block 36 embedded in the inner wall of the hopper 11. A rotary motor 35 is also provided between the connecting ear 32 at the rear end of the push rod b31 and the installation block 36. This allows the rotary motor 35 to control the rotation of the handle 33 and the push rod b31 and adjust the operating angle, thereby better shoveling / shoveling out the remaining material in the hopper 11.

[0026] It should be noted that since the hopper 11 contains concrete, but the concrete is not solidified and is fluid, to prevent concrete from seeping into the push rod b31 and the rotary motor 35, the joints and gaps are sealed. Furthermore, the push rod b31 is in a contracted state when not shoveling out the remaining material. The remaining material is only shoveled out after most of the concrete has been discharged. Therefore, when the push rod b31 is expanding and contracting, no concrete will remain on the push rod b31, reducing the risk of jamming. Regular maintenance of the push rod b31 is sufficient.

[0027] Furthermore, considering that when the hopper 11 is lifted, there may be a conflict with the front guide tube 12 when it is lifted to a certain height, and the discharge port of the guide tube 12 may be inconvenient due to excessive lifting, the outer side of the guide tube 12 is fitted with a guide tube lifting assembly 4 to adapt to the lifting operation of the hopper 11. It must be ensured that the hopper 11 and the guide tube 12 are in an inclined unloading state. The guide tube lifting assembly 4 includes a push rod c41, a clamp 42 located at the top of the push rod c41, and a support rod 44 for supporting the push rod c41. The clamp 42 is fitted in the middle of the guide tube 12, and the push rod c41 is connected to the guide tube 12 through the clamp 42. The push rod c41 is supported by the support rod 44.

[0028] Furthermore, the clamp 42 includes two arc-shaped plates that are adapted to the conduit 12. One end of the arc-shaped plate is hinged, and the other end is connected by a bolt 43. The clamp 42 is a conventional pipe clamp 42 that is adapted to the size and shape of the conduit 12. The bottom of the push rod c41 is screwed with at least three inclined support rods 44 to stabilize the push rod c41.

[0029] It should be noted that push rods a21, b31 and c41 are all either hydraulic or electric push rods. The type of push rod is selected according to the actual load. For example, if push rod a21 needs to lift the hopper 11 filled with concrete, then a hydraulic push rod is required to lift the hopper 11.

[0030] Furthermore, the guide tube 12 and the hopper 11 are integrally formed to avoid breakage at the connection point caused by connecting parts. After integral forming, reinforcing ribs can be evenly distributed in a ring on the outer side of the root of the guide tube 12 to eliminate welding deformation stress caused by differences in wall thickness and ensure the dimensional accuracy of the discharge port. The front end of the hopper 11 is tapered, and a valve is installed near the discharge port of the guide tube 12 to control the unloading operation. The valve can be a manual valve or an electric valve to control the unloading.

[0031] Specifically, the concrete hoisting process is as follows: S1. Check whether all equipment parts can be used normally. Move the hoisting tool to below the discharge port of the mixer truck, keep the hopper 11 horizontal (push rod a21 in the fully retracted state), and the discharge port of the guide pipe 12 facing the area to be poured, but do not open the valve yet. Ensure that the conical opening at the front end of the hopper 11 is not blocked. The mixer truck unloads the material at a uniform speed to avoid impacting the side wall of the hopper 11. Use the crane to hook the top lifting ring 13 (main lifting point) of the hopper 11 and the lifting ring 13 (auxiliary lifting point) of the guide pipe 12 to maintain the balance of the two points. Avoid obstacles in the hoisting path. Ground personnel use traction ropes to stabilize the direction of the guide pipe 12 to prevent rotation. S2, slowly lower the hopper 11 to a height of 1-1.5 meters above the pouring surface, activate push rod c41, and finely adjust the outlet angle of the guide tube 12 to align it with the target unloading position, ensuring that the inclination of the guide tube 12 can unload normally (relying on the extension length of push rod c41 and the coordination of support rod 44). Simultaneously activate push rod a21 and push rod c41, push rod a21 slowly extends (e.g., at a speed of 5-8 mm / s), the rear side of the hopper 11 is raised, and the front conical opening tilts downward. Push rod c41 synchronously compensates by extending, keeping the inclination angle of the guide tube 12 relative to the ground constant (avoiding the outlet from rising). Guide rod 24 slides upward within guide plate 23, and connecting arm 26 slides in the opposite direction simultaneously (connecting block 29 downward), forming a dynamically stable triangular structure. It should be noted that the extension and retraction lengths of push rod a21 and push rod c41 always maintain a geometric correspondence. This correspondence is determined by the mechanical closed loop formed by the sliding pair of guide rod 24-guide plate 23 and the sliding pair of connecting arm 26-connecting groove 28. S3, when the hopper 11 is tilted to the maximum designed tilt angle (e.g., 30-35°), stop the push rod a21, slowly open the valve of the guide pipe 12, and the concrete flows out at a uniform speed along the guide pipe 12. It is strictly forbidden to suddenly open the valve fully to cause an impact. If a blockage occurs, close the valve immediately and manually clear it. According to the pouring progress, finely adjust the extension length of the push rod a21 to control the tilt angle of the hopper 11 and maintain the continuity of concrete flow. If the outlet of the guide pipe 12 needs to be moved horizontally, the entire tool is moved and lifted by the crane. S4. When the amount of concrete remaining in the hopper 11 is small (e.g., less than 5%), close the valve. The rotary motor 35 at the mounting block 36 first drives the push rod b31 to rotate downward as a whole (e.g., 15°). The rotary motor 35 (end of the shovel 34) then drives the shovel 34 to bend downward relative to the push rod b31 (e.g., 30°), forming a downward-sloping cutting edge (45°). The push rod b31 slowly extends (reference ≤10 mm / s). The shovel 34 cuts downward while pushing the remaining material towards the conduit 12 opening. The shovel 34 gathers the remaining material towards the conduit 12 opening until all the remaining material is introduced into the conduit 12. The push rod b31 slowly retracts, and the shovel 34 is stored against the wall to avoid collisions during hoisting. It should be noted that the two rotary motors 35 are controlled independently. After the rotary motor 35 of the mounting block 36 completes the spatial orientation setting of the push rod b31, the rotary motor 35 at the blade 34 end adjusts the angle to form a sequential action. The rotary motor 35 is selected with a locking function, which is achieved by the built-in power-off brake of the motor to prevent angle drift during the pushing process. S5. After unloading is completed, turn off all motors, push rod b31 returns to the sealed storage state, open the valve of conduit 12, use the weight of the residual concrete to flush the inner wall of conduit 12, use a high-pressure water gun (equipped on site) to flush the inner wall of hopper 11, shovel 34, and surface of push rod b31 (it is strictly forbidden to directly flush the motor seal), and the crane lifts it off with balanced double lifting points and returns to the cleaning area. Through the above steps, the hoisting tool can achieve safe operation of the hopper 11 with high efficiency and low residue.

[0032] The hopper 11, lifting ring 13, push rod, shovel 34, rotary motor 35, clamp 42, bolt 43, support rod 44, valve and other components of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" 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," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] 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.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete hoisting tool, characterized in that, The concrete hoisting assembly (1) includes a hopper (11), a guide pipe (12) inclined on one side of the lower end of the hopper (11), and lifting rings (13) welded to the top of the hopper (11) and the upper side of the guide pipe (12). A hopper lifting assembly (2) is provided on the outside of the hopper (11). The hopper lifting assembly includes two push rods a (21), a guide frame, a connecting arm (26), and a base plate (27). The guide frame includes a fixed rod (22) respectively provided on the rear side of the two push rods a (21) and a guide plate (23) provided between the top of the two fixed rods (22). A guide rod (24) is provided between the guide plate (23) and the hopper (11). The base plate (27) is fixed to the bottom of the push rods a (21). The connecting arm (26) is provided between the base plate (27) and the hopper (11).

2. The concrete hoisting tool according to claim 1, characterized in that, The top of the push rod a (21) is connected to the top of the hopper (11) by a fixing block screw. At least three guide rods (24) are provided on the rear side of the hopper (11). Both the upper and lower ends of the guide rods (24) are threaded with baffles (25).

3. A concrete hoisting tool according to claim 2, characterized in that, The baffle (25) is fixed to the rear side of the hopper (11), the guide rod (24) passes through the guide plate (23) and is slidably connected to the guide plate (23), and the bottom end of the connecting arm (26) is rotatably connected to the bottom plate (27).

4. A concrete hoisting tool according to claim 3, characterized in that, Both sides of the hopper (11) are fixed with connecting grooves (28) for the connecting arm (26) to slide, and a connecting block (29) is provided between the upper end of the connecting arm (26) and the connecting groove (28).

5. A concrete hoisting tool according to claim 4, characterized in that, The connecting block (29) includes a cylinder rotatably connected to the connecting arm (26) and a "T"-shaped block slidably connected to the connecting groove (28), wherein the cylinder has an "H" or "I" shaped cross section and the cylinder and the "T"-shaped block are fixedly connected.

6. A concrete hoisting tool according to claim 5, characterized in that, The inner wall of the hopper (11) is provided with a residual material shovel assembly (3). The residual material shovel assembly (3) includes a push rod b (31) and a shovel (34). Both ends of the push rod b (31) are fixed with connecting ears (32). A handle (33) is provided between the connecting ear (32) at the telescopic end of the push rod b (31) and the shovel (34). The connecting ear (32) and the handle (33) are rotatably connected.

7. A concrete hoisting tool according to claim 6, characterized in that, A rotary motor (35) is provided between the knife handle (33) and the connecting ear (32). The output end of the rotary motor (35) passes through the connecting ear (32) and is connected to the knife handle (33) in a transmission manner. The connecting ear (32) at the rear end of the push rod (31) is rotatably connected to an installation block (36) embedded in the inner wall of the hopper (11).

8. A concrete hoisting tool according to claim 7, characterized in that, The outer side of the catheter (12) is fitted with a catheter lifting assembly (4), which includes a push rod c (41), a clamp (42) located at the top of the push rod c (41), and a support rod (44) for supporting the push rod c (41). The clamp (42) is fitted at the middle position of the catheter (12).

9. A concrete hoisting tool according to claim 8, characterized in that, The clamp (42) includes two arc-shaped plates adapted to the conduit (12), one end of which is hinged and the other end is connected by a bolt (43). The bottom of the push rod c (41) is screwed with at least three inclined support rods (44).

10. A concrete hoisting tool according to claim 9, characterized in that, The conduit (12) and the hopper (11) are integrally formed. The front end of the hopper (11) is tapered, and a valve is provided near the outlet of the conduit (12).

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