Grab machine for concrete

By introducing a grab bucket mechanism into a concrete grab bucket machine, and using a servo motor to drive a threaded rod to achieve the lifting and rotation of the grab bucket, the problem of grab bucket machines grabbing irregular concrete blocks has been solved, and the grabbing efficiency and effect have been improved.

CN223920905UActive Publication Date: 2026-02-17SHANGHAI WEIZHITIAN NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520705649.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-17
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Existing concrete grab buckets have difficulty effectively grabbing irregular concrete blocks, resulting in poor performance.

Method used

The grab mechanism includes a drive box, support and reinforcement components, servo motor, threaded rod, and hinge components. The servo motor drives the threaded rod to lift and rotate the adjusting moving block and the grab body, thereby achieving stable grabbing of irregular concrete blocks.

Benefits of technology

It improves the grabbing efficiency and effectiveness of concrete grabbers when grabbing irregular concrete blocks, reduces the probability of material spillage, and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a grab bucket machine for concrete, which belongs to the technical field of concrete and comprises a mounting fixing seat, and a grab bucket mechanism used for adjusting and grabbing concrete blocks is mounted on one side of the mounting fixing seat. The grab bucket mechanism comprises a driving box fixedly mounted on one side of the mounting fixing seat and a supporting and reinforcing assembly mounted on the outer side of the driving box, a driving assembly is mounted in the driving box, and a mounting assembly is connected to the side, away from the mounting fixing seat, of the driving assembly; and two auxiliary moving assemblies in mirror symmetry are mounted between the opposite sides of the supporting and reinforcing assembly and the mounting assembly. According to the grab bucket machine for concrete, effective adjustment can be carried out when a concrete block is grabbed, so that in the process that a target object is grabbed, it is ensured that the situation that the target object is difficult to grab due to the fact that the shape or the structure of the target object is irregular is avoided, and therefore the grabbing effect is improved, and the using effect of an existing grab bucket machine for concrete is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of concrete technology, specifically to a concrete grab bucket machine. Background Technology

[0002] A concrete grab bucket is a type of mechanical equipment used in concrete construction. It is often referred to as a concrete grab bucket or concrete mixer. It is mainly used for mixing, blending, and transporting concrete. It is an indispensable piece of equipment in construction projects, which can improve construction efficiency, ensure the quality of concrete, and is widely used in various types of construction projects.

[0003] A concrete grab bucket machine typically consists of four parts: a mixing drum, a mixer, a grab bucket assembly, and a conveying device. The mixing drum is used to load concrete and can rotate to ensure uniform mixing. The mixer is used to uniformly mix the concrete by pushing it upwards from the bottom of the drum. The grab bucket assembly is used to remove the mixed concrete from the mixing drum and usually consists of one or more grab buckets, the size and shape of which can be adjusted as needed. The conveying device is used to transport the concrete from the mixing drum to the location where it is needed and usually consists of one or more conveying pumps that can transport the concrete to the designated location at a certain pressure and speed.

[0004] Existing concrete grab buckets are generally designed to address the issue of hydraulic grab buckets being unable to descend to a suitable height when encountering deep grabbing environments, making grabbing cumbersome. Furthermore, the hydraulic grab buckets lack orientation adjustment, preventing them from grabbing materials at the optimal position, potentially causing the grabbed material to scatter on the ground and affecting grabbing efficiency. Improvements are being made to address these issues. For example, a concrete grab bucket disclosed in authorized Chinese patent CN215857957U utilizes a structure consisting of a hydraulic grab bucket body, a load-bearing column, a placement slot one, a rotating shaft one, a turntable, a stroke column, a rotating column, a rotating shaft two, a limit frame, a drive motor, a support frame, a hook, a support arm, a placement slot two, a rotating shaft three, a steel wire rope, helical gear one, helical gear two, a forward and reverse motor, a limit plate, a mounting plate, bolts, and mounting holes to position it in a suitable grabbing position. This improves the grabbing efficiency of the hydraulic grab bucket, as being in a suitable position also reduces the probability of damage to the grabbed material.

[0005] However, judging from the attached drawings, the concrete grab bucket described in the above-cited document only uses two L-shaped hydraulic grab buckets to grab concrete blocks. Due to the irregular volume of some concrete blocks, it cannot grab objects with complex shapes. During the grabbing process, it is necessary to ensure that the object is not difficult to grab due to its irregular shape or structure. Therefore, the effectiveness of the existing concrete grab bucket needs to be improved. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a concrete grab bucket machine, which has the advantages of effectively improving the performance of existing concrete grab bucket machines and solving the problem of poor performance of existing concrete grab bucket machines.

[0007] In summary, this utility model provides the following technical solution: a concrete grab bucket machine, including a mounting base, wherein a grab bucket mechanism for adjusting the grabbing of concrete blocks is installed on one side of the mounting base;

[0008] The grab mechanism includes a drive box fixedly mounted on one side of the mounting base and a support and reinforcement assembly mounted on the outside of the drive box. The drive box contains a drive assembly, and a mounting assembly is connected to the drive assembly on the side away from the mounting base. Two sets of auxiliary moving assemblies, arranged in a mirror-symmetric manner, are mounted between the support and reinforcement assembly and the mounting assembly on opposite sides. An adjusting moving block and two sets of hinge assemblies, respectively connected to both sides of the adjusting moving block, are connected between the two sets of auxiliary moving assemblies and the outside of the drive assembly. The grab body, connected to the mounting assembly, is connected to the side of the hinge assembly away from the adjusting moving block.

[0009] Furthermore, the support and reinforcement assembly includes a connecting frame and a fixing plate; one end of the connecting frame is fixedly installed on one side of the drive box by bolts, and there are multiple connecting frames distributed in a mirror symmetrical manner, with the ends of the multiple connecting frames away from the drive box being fixedly installed to the fixing plate by bolts.

[0010] By adopting the above technical solution, the drive component and the auxiliary moving component can be supported by the cooperation of the connecting frame and the fixing plate.

[0011] Furthermore, the drive assembly includes a servo motor and a threaded rod; one side of the servo motor is fixedly mounted inside the drive housing, one end of the threaded rod passes through the fixing plate and the drive housing in sequence and is fixedly connected to the output shaft of the servo motor, and the other end passes through the adjusting moving block and extends to the mounting assembly and is connected to the mounting assembly.

[0012] By adopting the above technical solution, the servo motor and the threaded rod can stably drive the adjusting moving block to move up and down.

[0013] Furthermore, the mounting assembly includes a fixed frame and a hinged mounting base; one side of the fixed frame is rotatably connected to the end of the threaded rod away from the servo motor via a bearing, and the other side is fixedly mounted to the hinged mounting base via bolts; the outer side of the grab body is hinged to the inner side of the hinged mounting base via a pin.

[0014] By adopting the above technical solution, the threaded rod can be stably supported for rotation through the cooperation of the fixed frame and the hinged mounting base.

[0015] Furthermore, the auxiliary moving component includes connecting blocks and sliding rods; the opposite sides of the two connecting blocks are respectively fixedly installed on one side of the fixing plate and the fixing frame by bolts, and the two ends of the sliding rod are respectively fixedly connected to the opposite sides of the two connecting blocks, and the outer side of the sliding rod is slidably connected to the inner side of the adjusting moving block.

[0016] By adopting the above technical solution, the stability of the adjusting moving block during movement can be improved through the combined action of the connecting block and the sliding rod.

[0017] Furthermore, the servo motor is connected to the adjusting moving block via the threaded rod. The servo motor drives the threaded rod to rotate, thereby causing the adjusting moving block to move between the sliding rod and the outer side of the threaded rod, and the hinge assembly moves accordingly.

[0018] The purpose of adopting the above technical solution is to enable effective adjustment when gripping concrete blocks, so that the target object will not be difficult to grip due to irregular shape or structure during the gripping process.

[0019] Furthermore, the hinge assembly includes a first hinge seat, a hinge rod, and a second hinge seat; one side of the first hinge seat is fixedly installed on one side of the adjusting moving block, one side of the second hinge seat is fixedly installed on one side of the grab body, one end of the hinge rod is hinged to the inner side of the first hinge seat via a pin, and the other end is hinged to the inner side of the second hinge seat via a pin.

[0020] The movement of the adjusting block causes the first hinge seat to move, thereby causing one end of the hinge rod to move accordingly, while the other end, hinged with the second hinge seat, pushes the grab bucket body to rotate.

[0021] By adopting the above technical solution, the target object can be stably grasped through the combined action of the first hinge seat, the hinge rod, and the second hinge seat, thereby improving its grasping efficiency.

[0022] Compared with the prior art, the present invention provides a concrete grab bucket machine, which has the following beneficial effects:

[0023] This concrete grab bucket machine, through the coordinated use of the grab bucket mechanisms on the mounting base, can effectively adjust when grabbing concrete blocks. This ensures that the target object is not difficult to grab due to its irregular shape or structure, thereby improving the grabbing effect and thus effectively enhancing the performance of existing concrete grab bucket machines. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0026] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the No. 1 hinged seat connection structure.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Mounting base; 200. Grab mechanism; 201. Drive box; 202. Grab body; 2031. Connecting frame; 2032. Fixing plate; 2041. Servo motor; 2042. Threaded rod; 2051. Fixing frame; 2052. Hinge mounting base; 206. Adjusting moving block; 2071. Connecting block; 2072. Sliding rod; 2081. No. 1 hinge base; 2082. Hinge rod; 2083. No. 2 hinge base. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-3 This utility model provides a technical solution: a concrete grab bucket machine, including a mounting base 1, and a grab bucket mechanism 200 for adjusting the grabbing of concrete blocks is installed on one side of the mounting base 1.

[0031] By using the grab bucket mechanisms 200 on the mounting base 1 in cooperation with each other, effective adjustments can be made when grabbing concrete blocks. This ensures that the target object is not difficult to grab due to its irregular shape or structure, thereby improving the grabbing effect and thus effectively improving the performance of existing concrete grab bucket machines.

[0032] In this embodiment, the grab bucket mechanism 200 is a structure used for effective adjustment when grabbing concrete blocks.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the grab mechanism 200 includes a drive box 201 fixedly installed on one side of the mounting base 1 and a support and reinforcement assembly installed on the outside of the drive box 201. A drive assembly is installed inside the drive box 201. An installation assembly is connected to the side of the drive assembly away from the mounting base 1. Two sets of auxiliary moving assemblies that are mirror-symmetrical are installed between the support and reinforcement assembly and the installation assembly on opposite sides. An adjusting moving block 206 and two sets of hinge assemblies respectively connected to both sides of the adjusting moving block 206 are connected between the two sets of auxiliary moving assemblies and the outside of the drive assembly. A grab body 202 connected to the installation assembly is connected to the side of the hinge assembly away from the adjusting moving block 206.

[0034] It should be noted that the support and reinforcement components include a connecting frame 2031 and a fixing plate 2032; one end of the connecting frame 2031 is fixedly installed on one side of the drive box 201 by bolts, and there are multiple connecting frames 2031 distributed in a mirror symmetrical manner. The ends of the multiple connecting frames 2031 away from the drive box 201 are fixedly installed with the fixing plate 2032 by bolts in order to support the drive component and the auxiliary moving component.

[0035] It is understood that the drive assembly includes a servo motor 2041 and a threaded rod 2042; one side of the servo motor 2041 is fixedly installed inside the drive housing 201, and one end of the threaded rod 2042 passes through the fixing plate 2032 and the drive housing 201 in sequence and is fixedly connected to the output shaft of the servo motor 2041, and the other end passes through the adjusting moving block 206 and extends to the mounting assembly and is connected to the mounting assembly, so as to stably drive the adjusting moving block 206 to move up and down.

[0036] In addition, the mounting components include a fixed frame 2051 and a hinged mounting base 2052; one side of the fixed frame 2051 is rotatably connected to the end of the threaded rod 2042 away from the servo motor 2041 via a bearing, and the other side is fixedly mounted to the hinged mounting base 2052 by bolts. The outer side of the grab body 202 is hinged to the inner side of the hinged mounting base 2052 by a pin, so as to stably support the rotation of the threaded rod 2042.

[0037] In this embodiment, the auxiliary moving component includes a connecting block 2071 and a sliding rod 2072. The opposite sides of the two connecting blocks 2071 are respectively fixedly installed on one side of the fixing plate 2032 and the fixing frame 2051 by bolts. The two ends of the sliding rod 2072 are respectively fixedly connected to the opposite sides of the two connecting blocks 2071. The outer side of the sliding rod 2072 is slidably connected to the inner side of the adjusting moving block 206 in order to improve the stability of the adjusting moving block 206 when it moves.

[0038] It should also be noted that the servo motor 2041 is connected to the adjusting moving block 206 via the threaded rod 2042. The servo motor 2041 drives the threaded rod 2042 to rotate, thereby causing the adjusting moving block 206 to move between the sliding rod 2072 and the outer side of the threaded rod 2042. The hinge assembly moves accordingly, which is to enable effective adjustment when gripping the concrete block, so that the target object will not be difficult to grip due to its irregular shape or structure during the gripping process.

[0039] It should be further explained that the hinge assembly includes a first hinge seat 2081, a hinge rod 2082, and a second hinge seat 2083; one side of the first hinge seat 2081 is fixedly installed on one side of the adjusting moving block 206, and one side of the second hinge seat 2083 is fixedly installed on one side of the grab body 202. One end of the hinge rod 2082 is hinged to the inner side of the first hinge seat 2081 through a pin, and the other end is hinged to the inner side of the second hinge seat 2083 through a pin.

[0040] The adjustment of the moving block 206 causes the first hinge seat 2081 to move, which in turn causes one end of the hinge rod 2082 to move. The other end, hinged with the second hinge seat 2083, pushes the grab body 202 to rotate. This is to ensure that the target object can be grabbed stably and improve its grabbing efficiency.

[0041] The working principle of the above embodiments is as follows:

[0042] When it is necessary to grasp the target object, the servo motor 2041 is first started. Under the rotational support of the bearing, the threaded rod 2042 is rotated. Since the adjusting moving block 206 can only move up and down due to its sliding connection with the sliding rod 2072, the adjusting moving block 206 moves stably up and down on the outside of the threaded rod 2042 under the thrust of the inner thread rotation. Furthermore, the adjusting moving block 206 is connected to the second hinge seat 2083 on the hinge rod 2082 through the first hinge seat 2081. The adjustment block 206 moves, driving the first hinge seat 2081 to move, so that one end of the hinge rod 2082 moves with the first hinge seat 2081, and the other end pushes the second hinge seat 2083, which is hinged to it, to move when it moves. The second hinge seat 2083 is fixed to the grab bucket body 202. Therefore, when the second hinge seat 2083 moves, the grab bucket body 202 performs a circular motion under the hinge action with the hinge mounting seat 2052. When the two grab bucket bodies 202 are in contact, the concrete material can be grabbed.

[0043] Compared with existing technologies, this concrete grab bucket machine, through the coordinated use of the grab bucket mechanisms 200 on the mounting base 1, can effectively adjust when grabbing concrete blocks. This ensures that the target object is not difficult to grab due to its irregular shape or structure, thereby improving the grabbing effect and effectively improving the performance of existing concrete grab bucket machines, thus solving the problem of poor performance of existing concrete grab bucket machines.

[0044] All electrical components mentioned in this document are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control. Furthermore, the existing publicly available power connection technology and power supply are common knowledge in this field, so this application will not elaborate further.

Claims

1. Grab machine for concrete, comprising a mounting fixture (1), characterized in that: The installation fixed seat (1) is installed on one side with a grab mechanism (200) for adjusting the grabbing of concrete blocks; The grab mechanism (200) comprises a drive box (201) fixedly installed on one side of the installation fixed seat (1), a support reinforcement assembly installed outside the drive box (201), a drive assembly installed in the drive box (201), an installation assembly connected to the side of the drive assembly away from the installation fixed seat (1), two sets of auxiliary moving assemblies installed between the opposite sides of the support reinforcement assembly and the installation assembly, an adjusting moving block (206) and two sets of hinged assemblies connected on both sides of the adjusting moving block (206), and a grab body (202) connected to the installation assembly on the side of the hinged assembly away from the adjusting moving block (206).

2. The concrete grab machine of claim 1, wherein: The support reinforcement assembly comprises a connecting frame (2031) and a fixed plate (2032); one end of the connecting frame (2031) is fixedly installed on one side of the drive box (201) by bolts, and a plurality of the connecting frames (2031) are mirror-symmetrically distributed, and the fixed plate (2032) is fixedly installed between the ends of the plurality of connecting frames (2031) away from the drive box (201) by bolts.

3. The concrete grab machine of claim 2, wherein: The drive assembly comprises a servo motor (2041) and a threaded rod (2042); one side of the servo motor (2041) is fixedly installed on the inside of the drive box (201), one end of the threaded rod (2042) penetrates the fixed plate (2032) and the drive box (201) in sequence and is fixedly connected to the output shaft of the servo motor (2041), and the other end penetrates the adjusting moving block (206) and extends to the installation assembly and is connected to the installation assembly.

4. The concrete grab machine of claim 3, wherein: The installation assembly comprises a fixed frame (2051) and a hinged mounting seat (2052); one side of the fixed frame (2051) is rotatably connected to the end of the threaded rod (2042) away from the servo motor (2041) through a bearing, the other side is fixedly installed with the hinged mounting seat (2052) through bolts, and the outside of the grab body (202) is hingedly connected to the inside of the hinged mounting seat (2052) through a pin shaft.

5. The concrete grab machine of claim 4, wherein: The auxiliary moving assembly comprises a connecting block (2071) and a sliding rod (2072); two connecting blocks (2071) are fixedly installed on one side of the fixed plate (2032) and the fixed frame (2051) through bolts, respectively, both ends of the sliding rod (2072) are fixedly connected to the opposite sides of the two connecting blocks (2071), and the outside of the sliding rod (2072) is slidingly connected to the inside of the adjusting moving block (206).

6. The concrete grab machine of claim 5, wherein: The servo motor (2041) is connected to the adjusting moving block (206) through the threaded rod (2042), the servo motor (2041) drives the threaded rod (2042) to rotate, so as to drive the adjusting moving block (206) to move between the outside of the sliding rod (2072) and the threaded rod (2042), and the hinged assembly moves accordingly.

7. The concrete grab machine of claim 1, wherein: The hinged assembly comprises a first hinged seat (2081), a hinged rod (2082) and a second hinged seat (2083); one side of the first hinged seat (2081) is fixedly installed on one side of the adjusting moving block (206), one side of the second hinged seat (2083) is fixedly installed on one side of the grab body (202), one end of the hinged rod (2082) is hinged to the inner side of the first hinged seat (2081) through a pin shaft, and the other end is hinged to the inner side of the second hinged seat (2083) through a pin shaft; The adjusting moving block (206) drives the first hinged seat (2081) to move, so as to drive one end of the hinged rod (2082) to move, and the other end pushes the grab body (202) to rotate in hinged connection with the second hinged seat (2083).

Citation Information

Patent Citations

  • Hydraulic grab bucket supporting device for concrete diaphragm wall

    CN215857957U