A hoisting device for lattice beams

Abstract

The present invention relates to the technical field of slope support engineering, and specifically to a hoisting device for a lattice beam, the hoisting device comprising a bracket, a lifting drive, a gripper mounting seat, an articulated rod, a clamping drive, and a pair of clamping mechanisms; the bracket is hinged to the gripper mounting seat; the lifting drive is mounted on the bracket; the lifting drive is hinged to the gripper mounting seat and can drive the gripper mounting seat to rotate around the axis of the articulated rod; with the axis of the lifting drive as a symmetry line, a pair of clamping mechanisms are symmetrically arranged on both sides of the gripper mounting seat; the clamping mechanism is rotatably connected to the gripper mounting seat; the clamping drive is connected to the pair of clamping mechanisms and can drive the pair of clamping mechanisms to rotate in opposite directions. The clamping drive can drive the pair of clamping mechanisms to rotate in opposite directions, realizing relative movement of the clamping ends of the pair of clamping mechanisms, thereby correspondingly realizing the clamping or release of the lattice beam, realizing automatic material collection and unloading of the lattice beam, and greatly improving construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of slope support engineering, and in particular to a hoisting device for a lattice beam. Background Art

[0002] Lattice reinforcement technology is a widely used slope reinforcement technology that uses lattice beams (including mortar-laid blocks, cast-in-place reinforced concrete and prestressed concrete) to protect slope surfaces and fix them with anchor rods or cables.

[0003] Lattice girders are typically hoisted using cranes. Before hoisting, manual work is required to tie rebar to the lattice girders and install extraction tools. After hoisting, the rebar and extraction tools must be manually removed from the lattice girders. This results in a low level of mechanization, low construction efficiency, and low safety. Furthermore, when hoisted using rebar or wire rope, the lattice girders are prone to tilting and rotating during the hoisting process, resulting in poor hoisting stability. This increases construction safety risks and makes the lattice girders more susceptible to collision with adjacent lattice girders when released on a slope. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a hoisting device for a lattice beam, which solves the technical problems of low hoisting efficiency and construction safety of the existing lattice beams.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned object, the hoisting device of the lattice beam of the present invention comprises a bracket, a lifting drive, a gripper mounting seat, a hinged rod, a clamping drive and a pair of clamping mechanisms;

[0008] The bracket is hinged to the gripper mounting seat;

[0009] The lifting driver is mounted on the bracket; the lifting driver is hinged to the gripper mounting seat and can drive the gripper mounting seat to rotate around the axis of the hinged rod;

[0010] With the axis of the lifting drive as a symmetry line, a pair of the clamping mechanisms are symmetrically arranged on both sides of the gripper mounting seat; the clamping mechanisms are rotatably connected to the gripper mounting seat;

[0011] The clamping driver is connected to a pair of the clamping mechanisms and can drive the pair of the clamping mechanisms to rotate in opposite directions.

[0012] Optionally, the gripper mounting base includes a joint, a quick-release head, a base, a limit block and a pair of sleeves;

[0013] The top end of the joint is connected to the hinge rod, and the first end of the joint is connected to the lifting driver, and the lifting driver can drive the joint to rotate around the axis of the hinge rod;

[0014] The second end of the connector is detachably connected to one end of the quick-release head; the other end of the quick-release head is connected to the base; and the other end of the base is connected to the limit block;

[0015] A pair of sleeves are arranged on both sides of the base in a one-to-one correspondence, and the clamping mechanism is rotatably connected to the sleeves.

[0016] Optionally, baffles are provided on both sides of the limiting block, and the baffles can limit the rotation of the clamping mechanism around its rotation axis.

[0017] Optionally, a pin is connected to the sleeve;

[0018] The sleeve is provided with a socket, and the pin is plugged into the socket.

[0019] Optionally, the lifting device further includes a transition block, and the joint, the quick-release head and the transition block are connected end to end in sequence.

[0020] Optionally, the clamping mechanism includes a rod body, a wing plate and a plurality of hook assemblies;

[0021] The rod body is rotatably connected to the gripper mounting seat;

[0022] The wing plate is arranged on the outer wall of the rod body; the free end of the wing plate is hinged to the clamping driver;

[0023] The hook assembly is connected to the outer wall of the rod body; a plurality of the hook assemblies are arranged along the axial direction of the rod body.

[0024] Optionally, the lifting device further comprises a latch plate;

[0025] The wing plate is provided with a latch hole, and the latch plate is plugged into the latch holes of a pair of the clamping mechanisms to limit the rotation of the pair of the clamping mechanisms around their rotation axes.

[0026] Optionally, the hook assembly includes a mounting plate and a hook;

[0027] The mounting plate is connected to the outer wall of the rod body;

[0028] The hook claw is detachably connected to the mounting plate.

[0029] Optionally, a plurality of pads are provided on a side of the hook close to the mounting plate;

[0030] A threaded hole is provided in the pad, and the mounting plate, the pad and the hook are connected by bolts.

[0031] Optionally, a top support plate is vertically provided at the bottom end of the mounting plate;

[0032] A support block is provided on one side of the hook close to the mounting plate; the support block abuts against the top surface of the supporting plate.

[0033] (3) Beneficial effects

[0034] The beneficial effects of the present invention are:

[0035] A pair of clamping mechanisms are symmetrically positioned on either side of the gripper mounting base, with the axis of the lifting drive as the line of symmetry. This symmetrical arrangement ensures uniform force on both sides of the lifting device, improving stability during clamping and lifting, and enhancing construction safety. Compared to traditional wire rope lifting methods, this clamping method allows the lattice beam to be clamped within the pair of clamping mechanisms, providing greater lifting stability.

[0036] The clamping driver is connected to a pair of clamping mechanisms, thereby driving the clamping mechanisms to rotate within the gripper mounting seat. Furthermore, the clamping driver can drive the pair of clamping mechanisms to rotate in opposite directions, thereby achieving relative movement of the clamping ends of the pair of clamping mechanisms, causing the clamping ends of the pair of clamping mechanisms to move closer to or further from each other, thereby correspondingly clamping or releasing the lattice beam, ultimately achieving automatic material removal and unloading of the lattice beam. Furthermore, when the hoisting device is in operation, there is no need to install extraction tooling on the lattice beam. The hoisting device can directly clamp the lattice beam, simplifying the construction process and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the lifting device of the present invention;

[0038] Figure 2 This is a schematic diagram of the connection between the gripper mounting base and the clamping mechanism of the present invention;

[0039] Figure 3 It is a structural schematic diagram of the quick-release head of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the sleeve of the present invention;

[0041] Figure 5 It is a structural schematic diagram of the adapter block of the present invention;

[0042] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0043] Figure 7 It is a structural schematic diagram of the hook of the present invention;

[0044] Figure 8 This is a schematic diagram of the connection between the mounting plate and the hook of the present invention;

[0045] Figure 9 It is a front view of the latch plate of the present invention;

[0046] Figure 10 A top view of the latch plate of the present invention;

[0047] Figure 11 It is a schematic diagram of the connection between the working arm and the lifting device of the present invention.

[0048] [Description of Reference Numerals]

[0049] 1: bracket;

[0050] 2: Lift the drive;

[0051] 3: Grip mounting base; 31: Connector; 32: Quick release head; 33: Base; 34: Limit block; 35: Sleeve; 351: Socket; 36: Baffle; 37: Adapter block;

[0052] 4: hinged rod;

[0053] 5: Clamping drive;

[0054] 6: Clamping mechanism; 61: Rod body; 62: Wing plate; 63: Claw assembly; 631: Mounting plate; 6311: Top support plate; 632: Claw; 6321: Pad; 6322: Support block;

[0055] 7: latch plate;

[0056] 8: Working arm. DETAILED DESCRIPTION

[0057] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0058] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0059] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0060] In the present invention, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean fixed connection, detachable connection, or integration; "connection" can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0061] See also Figure 1 The present invention provides a lifting device for a lattice beam, comprising a bracket 1, a lifting drive 2, a gripper mounting seat 3, an articulated rod 4, a clamping drive 5, and a pair of clamping mechanisms 6; the bracket 1 is hingedly connected to the gripper mounting seat 3; the lifting drive 2 is mounted on the bracket 1; the lifting drive 2 is hingedly connected to the gripper mounting seat 3 and is capable of driving the gripper mounting seat 3 to rotate about the axis of the articulated rod 4; a pair of clamping mechanisms 6 are symmetrically arranged on both sides of the gripper mounting seat 3 with the axis of the lifting drive 2 as a symmetry line; the clamping mechanisms 6 are rotatably connected to the gripper mounting seat 3; the clamping drive 5 is connected to the pair of clamping mechanisms 6 and is capable of driving the pair of clamping mechanisms 6 to rotate in opposite directions. The lifting drive 2 and the clamping drive 5 are both telescopic drives, which can be pneumatic cylinders, hydraulic cylinders, or electric push rods. In this embodiment, both the lifting drive 2 and the clamping drive 5 are oil cylinders; the clamping drive 5 can be two one-way propulsion cylinders or one two-way propulsion cylinder, as long as the pair of clamping mechanisms 6 can be rotated in opposite directions.

[0062] With the axis of the lifting drive 2 as the line of symmetry, a pair of clamping mechanisms 6 are symmetrically positioned on either side of the gripper mounting base 3. This symmetrical arrangement of the clamping mechanisms 6 ensures consistent force on both sides of the lifting device, improving stability during clamping and lifting, and enhancing construction safety. Compared to traditional wire rope lifting methods, this clamping method allows the lattice beam to be clamped within the pair of clamping mechanisms 6, providing greater lifting stability.

[0063] The clamping driver 5 is connected to a pair of clamping mechanisms 6, thereby driving the clamping mechanisms 6 to rotate within the gripper mounting base 3. Furthermore, the clamping driver 5 can drive the pair of clamping mechanisms 6 to rotate in opposite directions, thereby achieving relative movement of the clamping ends of the pair of clamping mechanisms 6, causing the clamping ends of the pair of clamping mechanisms 6 to move closer to or further from each other, thereby correspondingly clamping or releasing the lattice beam, ultimately achieving automatic loading and unloading of the lattice beam. Furthermore, during operation, the hoisting device eliminates the need for installation of extraction fixtures on the lattice beam; it can directly clamp the lattice beam, simplifying the construction process and improving construction efficiency.

[0064] like Figure 2 and Figure 3 As shown, the gripper mounting base 3 includes a joint 31, a quick-release head 32, a base 33, a stopper 34, and a pair of sleeves 35. The top end of the joint 31 is connected to the hinge rod 4, and the first end of the joint 31 is connected to the lifting drive 2, which can drive the joint 31 to rotate about the axis of the hinge rod 4. The second end of the joint 31 is detachably connected to one end of the quick-release head 32, which can be connected by a bolt or pin. The other end of the quick-release head 32 is connected to the base 33. The other end of the base 33 is connected to the stopper 34. A pair of sleeves 35 are arranged on both sides of the base 33 in a one-to-one correspondence, and the clamping mechanism 6 is rotatably connected to the sleeves 35. In this embodiment, the joint 31 has a triangular structure, with the top corner of the joint 31 hinged to the hinge rod 4, and the two bottom corners of the joint 31 are correspondingly hinged to the lifting drive 2 and detachably connected to the quick-release head 32. When the lifting drive 2 pushes one bottom corner, the other bottom corner can rotate about the hinge rod 4, thereby achieving the lifting or lowering of the gripper mounting base 3 and the pair of clamping mechanisms 6. The removable connection between the connector 31 and the quick-release head 32 facilitates assembly and disassembly of the quick-release head 32, facilitating replacement of different types of gripper mounting bases 3 for lattice girders of different sizes, thereby facilitating replacement of a pair of sleeves 35 with different spacings. The limit block 34 is located inside the pair of clamping mechanisms 6. When the limit block 34 rotates inward, i.e., when clamping, the wing plate 62 of the clamping mechanism 6 abuts the limit block 34, limiting the rotation of the clamping mechanism 6 and ultimately limiting the maximum clamping angle of the lifting device. This prevents excessive clamping force and effectively protects the lattice girder and the clamping mechanism 6.

[0065] Secondly, baffles 36 are provided on both sides of the limit block 34 to limit the rotation of the clamping mechanism 6 around its rotation axis. The baffles 36 are provided at the corresponding abutment positions between the limit block 34 and the wing plate 62. Optionally, the baffles 36 are rubber pads to effectively buffer the collision force between the limit block 34 and the wing plate 62.

[0066] See also Figure 4A pin is connected to the sleeve 35, and a socket 351 is formed on the sleeve 35, into which the pin is inserted. After the lifting device clamps the lattice girder, to enhance the clamping stability, a pin can be inserted into the socket 351. The pin abuts or engages with the rod 61 of the clamping mechanism 6 inside the sleeve 35, further limiting the rotation of the clamping mechanism 6 relative to the sleeve 35.

[0067] like Figure 5 As shown, the lifting device also includes an adapter block 37, with the connector 31, quick-release head 32, and adapter block 37 connected end to end. In most operating conditions, the lifting device does not require an adapter block 37. The axes of symmetry of the clamped lattice girder, bracket 1, lifting drive 2, gripper mounting base 3, and pair of clamping mechanisms 6 lie in the same vertical plane. Because the lifting device sometimes needs to be lifted horizontally at the top of a slope, the clamping mechanism 6 needs to be arranged perpendicular to the lifting drive 2, and the installation angle of the clamping mechanism 6 needs to be adjusted before lifting. In this embodiment, the connector 31 and quick-release head 32 are connected by a pair of pins, which are respectively inserted into the two sides of the quick-release head 32. When the clamping mechanism 6 needs to be switched from a longitudinal operating state to a transverse operating state, one of the pins is removed, the other is retained, and the quick-release head 32 is rotated using the retained pin as the rotation axis, causing the quick-release head 32 to swing to a preset angle. The connector 31 and quick-release head 32 are then fixed by the adapter block 37, which is also connected by the pins. The joint 31, quick-release head 32, and adapter block 37 form a triangular connection structure, which provides strong connection stability. Optionally, the adapter block 37 can be replaced with an adjustable cylinder to automatically drive the quick-release head 32 to rotate around its hinge point with the joint 31, reducing manual labor intensity.

[0068] See also Figure 6The clamping mechanism 6 includes a rod 61, a wing plate 62, and multiple hook assemblies 63. The rod 61 is rotatably connected to the gripper mounting base 3. The wing plate 62 is arranged on the outer wall of the rod 61. The free end of the wing plate 62 is hinged to the clamping driver 5. The hook assemblies 63 are connected to the outer wall of the rod 61. Multiple hook assemblies 63 are arranged along the axial direction of the rod 61. The wing plate 62 is similar in structure to an ear plate, consisting of a pair of parallel plates with a hollow interior to accommodate the telescopic rods and latch plate 7 of the clamping driver 5. The pair of clamping mechanisms 6 form a pair of wing plates 62, which are correspondingly connected to the two telescopic rods of the clamping driver 5 to provide support for the clamping driver 5. The clamping driver 5 drives the wing plates 62 to move, thereby driving the rod 61 and the hook assemblies 63 to rotate. The multiple hook assemblies 63 clamp or release the lattice beam. Compared with the traditional lifting method, the present invention adopts clamping lifting, which has strong clamping stability and lifting stability; and unlike the hinged structure of the traditional hook, the clamping mechanism 6 of the present application can effectively transmit the force to the sleeve 35, and the force is more reasonable, which effectively extends the service life of the lifting device and also increases the upper limit of the weight of the lattice beam lifted by the lifting device.

[0069] like Figures 8 to 10 As shown, the lifting device also includes a latch plate 7; latch holes are formed in the wing plates 62, and the latch plate 7 engages with the latch holes of the pair of clamping mechanisms 6 to limit the rotation of the pair of clamping mechanisms 6 about their rotation axes. A pair of latches, which in this embodiment are safety pins, are provided at each end of the latch plate 7. The pair of latches engage with the latch holes in the pair of wing plates 62. The latch plate 7 securely connects the pair of clamping mechanisms 6, locking their rotation. This improves the stability of the lifting and prevents the lattice beam from slipping out of the pair of clamping mechanisms 6 due to failure of the clamping driver 5 during the lifting process. Of course, the latch plate 7 needs to be removed before unloading.

[0070] See again Figure 6 The hook assembly 63 includes a mounting plate 631 and a hook 632. The mounting plate 631 is connected to the outer wall of the rod body 61. The hook 632 is detachably connected to the mounting plate 631 and can be connected by bolts or pins. For lattice girders of different sizes, corresponding hooks 632 can be selected, improving the adaptability of the lifting device to various lattice girder sizes.

[0071] like Figure 7 As shown, a plurality of spacers 6321 are provided on the side of the hook 632 near the mounting plate 631. The spacers 6321 have threaded holes, and the mounting plate 631, spacers 6321, and hook 632 are connected by bolts. The spacers 6321 significantly reduce the distance between the mounting plate 631 and the hook 632, effectively reducing the required thickness of the hook 632, reducing its size and weight, and facilitating assembly and disassembly.

[0072] Furthermore, a top support plate 6311 is vertically mounted at the bottom end of the mounting plate 631. A support block 6322 is disposed on the side of the hook 632 proximal to the mounting plate 631. The support block 6322 abuts against the top surface of the top support plate 6311. During assembly and disassembly of the hook 632, the support block 6322 abuts against the top support plate 6311, reducing the difficulty and improving safety of assembly and disassembly. Furthermore, during hoisting, the support block 6322 effectively transmits the applied force to the top support plate 6311, reducing the shear force on the bolts of the pad 6321 and extending the service life of the clamping mechanism 6.

[0073] In this embodiment, the crane is a lattice trolley, such as Figure 11 As shown, the hoisting device is pin-mounted at the end of the lattice trolley's working arm 8. The working arm 8 integrates sliding, lifting, and rotational functions, enabling the hoisting device to perform a wide range of movements to meet construction needs. The lattice trolley is capable of multiple functions, including grooving, trench cleaning, and lattice girder installation. The hoisting device, as one of the lattice trolley's working devices, can be quickly swapped with other working devices, expanding and improving the lattice trolley's functionality and enhancing the efficiency of overall mechanized construction.

[0074] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A lattice beam hoisting device, characterized in that: The lifting device comprises a bracket (1), a lifting drive (2), a gripper mounting seat (3), a hinged rod (4), a clamping drive (5) and a pair of clamping mechanisms (6); The bracket (1) is hinged to the gripper mounting seat (3); The lifting driver (2) is mounted on the bracket (1); the lifting driver (2) is hinged to the gripper mounting seat (3) and is capable of driving the gripper mounting seat (3) to rotate around the axis of the hinged rod (4); With the axis of the lifting drive (2) as a symmetry line, a pair of the clamping mechanisms (6) are symmetrically arranged on both sides of the gripper mounting seat (3); the clamping mechanisms (6) are rotatably connected to the gripper mounting seat (3); The clamping driver (5) is connected to a pair of the clamping mechanisms (6) and is capable of driving the pair of the clamping mechanisms (6) to rotate in opposite directions; The gripper mounting seat (3) comprises a joint (31), a quick-release head (32), a base (33), a limit block (34) and a pair of sleeves (35); the top end of the joint (31) is connected to the hinge rod (4), the first end of the joint (31) is connected to the lifting driver (2), and the lifting driver (2) can drive the joint (31) to rotate around the axis of the hinge rod (4); the second end of the joint (31) is detachably connected to one end of the quick-release head (32); the other end of the quick-release head (32) is connected to the base (33); the other end of the base (33) is connected to the limit block (34); a pair of sleeves (35) are arranged on both sides of the base (33) in a one-to-one correspondence, and the clamping mechanism (6) is rotatably connected to the sleeves (35); The clamping mechanism (6) comprises a rod body (61), a wing plate (62) and a plurality of hook claw assemblies (63); the rod body (61) is rotatably connected to the gripper mounting seat (3); the wing plate (62) is arranged on the outer wall of the rod body (61); the free end of the wing plate (62) is hinged to the clamping driver (5); the hook claw assembly (63) is connected to the outer wall of the rod body (61); and the plurality of hook claw assemblies (63) are arranged along the axial direction of the rod body (61).

2. The lattice beam hoisting device according to claim 1, characterized in that: Baffles (36) are provided on both sides of the limiting block (34), and the baffles (36) can limit the rotation of the clamping mechanism (6) around its rotation axis.

3. The lattice beam hoisting device according to claim 1, characterized in that: The sleeve (35) is connected with a pin; The sleeve (35) is provided with a socket (351), and the pin is plugged into the socket (351).

4. The lattice beam hoisting device according to claim 1, characterized in that: The hoisting device further comprises a transfer block (37), and the joint (31), the quick-release head (32), and the transfer block (37) are connected end to end in sequence.

5. The lattice beam hoisting device according to claim 1, characterized in that: The lifting device also includes a latch plate (7); A latch hole is provided on the wing plate (62), and the latch plate (7) is plugged into the latch holes of the pair of clamping mechanisms (6) to limit the rotation of the pair of clamping mechanisms (6) around their rotation axes.

6. The lattice beam hoisting device according to claim 1, characterized in that: The hook assembly (63) includes a mounting plate (631) and a hook (632); The mounting plate (631) is connected to the outer wall of the rod body (61); The hook (632) is detachably connected to the mounting plate (631).

7. The lattice beam hoisting device according to claim 6, characterized in that: A plurality of pads (6321) are provided on one side of the hook (632) close to the mounting plate (631); A threaded hole is provided in the pad (6321), and the mounting plate (631), the pad (6321) and the hook (632) are connected by bolts.

8. The lattice beam hoisting device according to claim 6, characterized in that: A top support plate (6311) is vertically provided at the bottom end of the mounting plate (631); A support block (6322) is provided on one side of the hook (632) close to the mounting plate (631); the support block (6322) abuts against the top surface of the supporting plate (6311).

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