Columnar material grabbing, loading and unloading device on construction site

Abstract

A cylindrical material grabbing, loading and unloading device on a construction site comprises a caliper assembly, a shaft pin assembly, a linkage assembly and a bearing connecting assembly. The caliper assembly is composed of a left caliper body and a right caliper body which are symmetrical, arc-shaped calipers are arranged on the lower portions of the caliper bodies, movable connecting shaft holes are formed in one sides of the caliper bodies, U-shaped fixing tables are arranged on the upper portions of the caliper bodies, and fixing shaft pins are arranged in the U-shaped fixing tables. The shaft pin assembly comprises a main shaft core, limiting ring pieces are arranged on the positions, located on the front side and the rear side of the caliper body, of the outer wall of the main shaft core correspondingly, a bearing shaft is arranged in the main shaft core, and the two ends of the bearing shaft are connected with plug rings. The linkage assembly comprises a hydraulic telescopic cylinder, and a piston rod of the hydraulic telescopic cylinder is connected with a fixing shaft pin. The bearing connecting assembly comprises a front bearing plate and a rear bearing plate, two connecting holes are formed in each bearing plate, the bearing shaft is sleeved with the connecting hole in the lower portion, a lifting rope rod is inserted into the connecting hole in the upper portion, and the head of the lifting rope rod is connected with a sealing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering equipment, in particular to a device for grabbing and loading and unloading columnar materials at a construction site. Background Art

[0002] At present, when the construction industry and other industries are constructing on site, for loading and unloading bundles of straight steel bars (generally, one bundle of steel bars weighs two tons) or round column materials such as steel pipes with larger diameters, the existing technology usually requires workers to temporarily lift one end of the bundle of straight steel bars or round column materials such as steel pipes with larger diameters through a fixed wire rope, and then put wooden square pads in the back of the bundle of straight steel bars or round column materials such as steel pipes with larger diameters to facilitate the wire rope to penetrate and bundle, and then lift them. This operation method is extremely dangerous. If the wire rope breaks when lifting one end, it will cause a major safety accident, and it is time-consuming and labor-intensive, affecting the efficiency of use. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a construction site columnar material grabbing and loading and unloading device with simple structure, convenient installation, firmness and reliability, easy operation, recycling and low cost.

[0004] The utility model discloses a technical solution of a construction site columnar material grabbing and loading and unloading device: comprising a caliper assembly, an axle pin assembly, a linkage assembly, and a load-bearing connection assembly;

[0005] The caliper assembly is composed of two groups of symmetrical caliper bodies on the left and right. An arc caliper is formed under the caliper body. A movable connecting shaft hole is formed on one side of the caliper body. A U-shaped fixing platform is formed on the upper part of the caliper body. A fixing shaft pin is arranged in the U-shaped fixing platform.

[0006] The shaft pin assembly includes a main shaft core, which passes through two groups of symmetrical movable connecting shaft holes of the caliper body at the same time. The outer wall of the main shaft core is located at the front and rear sides of the caliper body and is respectively provided with limit rings. A load-bearing shaft is arranged in the main shaft core, and the two ends of the load-bearing shaft are connected to plug rings.

[0007] The linkage assembly comprises a hydraulic telescopic cylinder, the two ends of which are connected to piston rods, which are connected to fixed shaft pins;

[0008] The load-bearing connection assembly includes two front and rear load-bearing plates, on which two connection holes are opened. The lower connection hole is sleeved onto the load-bearing shaft, and the plug ring contacts the outer wall of the load-bearing plate. A lifting rope rod is inserted into the upper connection hole, and the head of the lifting rope rod is connected to the sealing plate.

[0009] Furthermore, the caliper body, the arc-shaped caliper, and the U-shaped fixing platform are integrally manufactured.

[0010] Furthermore, an open clamp is provided on the piston rod, and the open clamp matches with the fixed shaft pin.

[0011] The beneficial effects of the utility model of a construction site columnar material grabbing and loading and unloading device are: ensuring the rigidity of round columnar materials such as bundles of straight steel bars or large-diameter steel pipes on the construction site when the materials are grabbed and used, reducing structural deformation, being safe and reliable, highly efficient, reusable, easy to operate, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the exploded state of a construction site columnar material grabbing and loading and unloading device of the utility model;

[0013] Figure 2 is a three-dimensional schematic diagram of a caliper assembly;

[0014] Figure 3 It is a three-dimensional schematic diagram of the linkage assembly;

[0015] Figure 4 The utility model is a three-dimensional schematic diagram of the matching state of a columnar material grabbing and loading and unloading device and a circular columnar material on a construction site. DETAILED DESCRIPTION

[0016] The utility model relates to a device for grabbing and loading and unloading columnar materials at a construction site, such as Figure 1 — Figure 4 As shown, it includes a caliper assembly 1, an axle pin assembly, a linkage assembly 3, and a load-bearing connection assembly 4;

[0017] The caliper assembly 1 is composed of two groups of symmetrical caliper bodies 15 on the left and right, an arc-shaped caliper 14 is formed under the caliper body 15, a movable connecting shaft hole 13 is formed on one side of the caliper body 15, a U-shaped fixing platform 12 is formed on the upper part of the caliper body 15, and a fixing shaft pin 11 is set in the U-shaped fixing platform 12;

[0018] The shaft pin assembly includes a main shaft core 23, which passes through two groups of symmetrical movable connecting shaft holes 13 of the caliper body 15 at the same time. The outer wall of the main shaft core 23 is located at the front and rear sides of the caliper body 15 and is respectively provided with limit ring pieces 24. The main shaft core 23 is provided with a bearing shaft 21, and the two ends of the bearing shaft 21 are connected to plug rings 22.

[0019] The linkage assembly 3 includes a hydraulic telescopic cylinder 32, both ends of which are connected to a piston rod 33, and the piston rod 33 is connected to a fixed shaft pin 11;

[0020] The load-bearing connection assembly 4 includes two front and rear load-bearing plates 41, and two connection holes 42 are opened on the load-bearing plates 41. The lower connection hole 42 is sleeved onto the load-bearing shaft 21, and the plug ring 22 contacts the outer wall of the load-bearing plate 41. The upper connection hole 42 is inserted into the lifting rope rod 51, and the head of the lifting rope rod 51 is connected to the sealing plate 52.

[0021] Furthermore, the caliper body 15, the arc-shaped caliper 14, and the U-shaped fixing platform 12 are integrally manufactured to ensure overall strength and rigidity.

[0022] Furthermore, an open clamp 31 is provided on the piston rod 33, and the open clamp 31 cooperates with the fixed shaft pin 11. When the piston rod 33 of the hydraulic telescopic cylinder 32 drives the open clamp 31 to extend outward, the open clamp 31 and the fixed shaft pin 11 are in a clamped stress state, and the open clamp 31 and the fixed shaft pin 11 have a certain locking function to prevent them from falling off, and when the piston rod 33 of the hydraulic telescopic cylinder 32 drives the open clamp 31 to retract inward, the open clamp 31 and the fixed shaft pin 11 are not in a clamped stress state, and the entire linkage assembly 3 can be taken out, and the assembly and disassembly of the linkage assembly are very convenient.

[0023] The utility model discloses a construction site columnar material grabbing and loading and unloading device, wherein a caliper assembly 1 is composed of two groups of symmetrical caliper bodies 15, the middle parts of the two groups of symmetrical caliper bodies 15 correspond to each other through movable connection shaft holes 13, and then a main shaft core 23 is inserted into the two corresponding movable connection shaft holes 13, and the two groups of symmetrical caliper bodies 15 are connected to each other by the main shaft core 23. The arc caliper 14 at the lower part of the two groups of symmetrical caliper bodies 15 can be centered on the main shaft core 23. The main shaft core 23 is rotated to open or clamp, and a limiting ring piece 24 is arranged on the outer wall of the main shaft core 23, and the limiting ring piece 24 plays a role of limiting and fixing the main shaft core 23. A load-bearing shaft 21 is arranged in the center of the main shaft core 23, and a load-bearing plate 41 is respectively sleeved on the outer walls of the two ends of the load-bearing shaft 21, and the lower part of the load-bearing plate 41 is fixed on the load-bearing shaft 21 through a plug ring 22, and a hanging rope rod 51 is connected to the connecting hole 42 on the upper part of the front and rear load-bearing plates 41, and the two ends of the hanging rope rod 51 are connected to the load-bearing plates through the sealing plate 52. 41 are fixed, and U-shaped fixing platforms 12 are respectively formed on the upper parts of the left and right symmetrical caliper bodies 15. A hydraulic telescopic cylinder 32 is arranged on the U-shaped fixing platform 12. Piston rods 33 are respectively arranged at both ends of the hydraulic telescopic cylinder 32. The piston rod 33 is engaged with the fixed shaft pin 11 in the U-shaped fixing platform 12 through the open clamp head 31. When in use, the lifting rope rod 51 is first tied firmly with the steel wire rope of the lifting tool such as a tower crane or a car crane, and the worker manually starts the hydraulic telescopic cylinder 32 to retract, and the hydraulic telescopic cylinder 32 The piston rods 33 at both ends drive the open clamp 31 to move toward one side of the hydraulic telescopic cylinder 32, and the open clamp 31 cooperates with the fixed shaft pin 11 to drive the U-shaped fixed platform 12 on the upper part of the left and right symmetrical caliper bodies 15 to rotate toward the middle. The U-shaped fixed platform 12 drives the lower arc caliper 14 to open through the main shaft core 23 in the middle of the caliper body 15, so that the arc caliper 14 can be smoothly placed on a bundle of straight steel bars or a circular cylindrical material 6 such as a steel pipe with a larger diameter, and at a reasonable force-bearing part of the object (such as an attached Figure 4 As shown), at this time, the worker manually starts the piston rod 33 of the hydraulic telescopic cylinder 32 to extend, so that the arc clamp 14 firmly clamps the circular column material 6 (the head of the arc clamp 14 is at least in the lower middle part of the circular column material 6), so that the object is not easy to fall. At this time, the hoist can be started to lift the circular column material 6. After lifting it to the specified position, the worker manually starts the hydraulic telescopic cylinder 32 to open the arc clamp 14 and put down the circular column material 6. This scheme is a construction site column material grabbing and loading and unloading device, which ensures the rigidity of the circular column material 6 such as bundled straight steel bars or large diameter steel pipes at the construction site when grabbing materials, reduces structural deformation, is safe and reliable, highly efficient, reusable, easy to operate, and low cost.

Claims

1. A device for grabbing and loading and unloading columnar materials at a construction site, characterized in that: It comprises a caliper assembly (1), an axle pin assembly, a linkage assembly (3), and a load-bearing connection assembly (4); The caliper assembly (1) is composed of two groups of symmetrical caliper bodies (15) on the left and right. An arc-shaped caliper (14) is formed under the caliper body (15). A movable connecting shaft hole (13) is formed on one side of the caliper body (15). A U-shaped fixing platform (12) is formed on the upper part of the caliper body (15). A fixing shaft pin (11) is arranged in the U-shaped fixing platform (12). The shaft pin assembly comprises a main shaft core (23), the main shaft core (23) simultaneously passes through the movable connecting shaft holes (13) of the two groups of symmetrical left and right caliper bodies (15), the outer wall of the main shaft core (23) is respectively provided with limit ring pieces (24) on the front and rear sides of the caliper body (15), and a load-bearing shaft (21) is provided in the main shaft core (23), and the two ends of the load-bearing shaft (21) are connected to plug rings (22); The linkage assembly (3) comprises a hydraulic telescopic cylinder (32), the two ends of the hydraulic telescopic cylinder (32) are connected to a piston rod (33), and the piston rod (33) is connected to a fixed shaft pin (11); The load-bearing connection assembly (4) comprises two front and rear load-bearing plates (41), two connection holes (42) are formed on the load-bearing plates (41), the lower connection hole (42) is sleeved onto the load-bearing shaft (21), the plug ring (22) contacts the outer wall of the load-bearing plate (41), the upper connection hole (42) is inserted into the suspension rod (51), and the head of the suspension rod (51) is connected to the sealing plate (52).

2. A construction site column material grabbing and loading and unloading device as claimed in claim 1, characterized in that: The caliper body (15), the arc-shaped caliper (14), and the U-shaped fixing platform (12) are integrally manufactured.

3. A construction site column material grabbing and loading and unloading device as claimed in claim 1, characterized in that: An open clamp (31) is provided on the piston rod (33), and the open clamp (31) matches with the fixed shaft pin (11).

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