Pipe hoisting device for tower crane

Abstract

The utility model relates to the technical field of pipe hoisting, and discloses a pipe hoisting device for a tower crane, which comprises a hoisting cable and a hoisting tool, a clamping device is mounted on the surface of the bottom end of the hoisting tool, the hoisting cable is mounted on the surface of the top end of the hoisting tool, and the clamping device comprises a hoisting shell, an elastic spring, a metal sliding rod and a clamp assembly. The metal sliding rod is fixedly connected to the surface of the inner wall of the hoisting shell, the hoisting shell is installed at the upper end of the clamp assembly, and the elastic spring is installed in the middle of the interior of the hoisting shell. According to the pipe hoisting device for the tower crane, the hoisting transverse clamping arm, the metal sliding block and the metal connecting block are arranged, the hoisting transverse clamping arm and the metal connecting block can be in threaded connection through the metal sliding block, meanwhile, the hoisting shell provides a supporting device for the hoisting transverse clamping arm, and the hoisting transverse clamping arm is convenient to disassemble and replace; and pipelines of different specifications can be clamped, so that the service time of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe hoisting, in particular to a pipe hoisting device for a tower crane. Background Art

[0002] Tower crane, also known as tower crane, is a lifting equipment widely used on construction sites. Tower crane is a rotating crane with a boom mounted on the top of a tall tower. It is mainly used for vertical and horizontal transportation of materials and installation of building components in house construction.

[0003] The prior art discloses a PCCP pipe lifting fixture with application number CN202223165288.7, comprising a fixed sleeve, two lifting clamp arms disposed within the fixed sleeve, the upper surface of the fixed sleeve being fixedly connected to two support rods, the outer surface of each support rod being slidably connected to a sliding sleeve, a connecting plate being fixedly connected between the two sliding sleeves, and a movable pull rod being movably hinged to the side surfaces of the two sliding sleeves facing away from each other via a first hinge buckle. The device comprises two lifting clamp arms disposed within the fixed sleeve, the lifting clamp arms cooperating with a slider and a slide groove within the fixed sleeve to enable the lifting clamp arms to extend and retract. As the lifting clamp arms extend and retract, the movable pull rod drives the sliding sleeve to slide in cooperation with the first hinge buckle and the second hinge buckle, thereby facilitating the unfolding and insertion of the lifting clamp arms into the pipe. The connecting plate is pulled to slide by the lifting ring and the lifting rod, and the connecting plate drives the two sliding sleeves to slide on the support rods, enabling the two lifting clamp arms to hold both ends of the pipe, thereby preventing the pipe from being detached. The sides of the sliders that are close to each other are fixedly connected to the lifting clamp arms. When facing pipes of different specifications and lengths, the lifting clamp arms need to be replaced, and the entire device needs to be disassembled, which makes the disassembly and replacement of the lifting clamp arms more troublesome and takes a lot of time. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe lifting device for a tower crane to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe lifting device for a tower crane, comprising a lifting cable and a sling, a clamping device being installed on the bottom surface of the sling, the lifting cable being installed on the top surface of the sling, a trolley being installed on the top surface of the lifting cable, the trolley running along the track on the boom, and being used to install a pulley block, a steel rope and a sling to realize luffing operation.

[0006] The clamping device includes a hanging shell, an elastic spring, a metal slide rod and a clamp assembly. The metal slide rod is fixedly connected to the inner wall surface of the hanging shell, the hanging shell is installed at the upper end of the clamp assembly, and the elastic spring is installed in the middle position inside the hanging shell.

[0007] Preferably, the clamp assembly includes a metal slider, a metal connecting block, a lifting vertical clamp arm, a pipe clamping plate, a metal slide plate, a vertical threaded rod and a lifting horizontal clamp arm, the metal connecting block is threadedly connected to the inward end of the lifting horizontal clamp arm, the lifting horizontal clamp arm is threadedly connected to the upper end of the lifting vertical clamp arm, the metal slider is slidably connected to the inward end of the lifting horizontal clamp arm, the pipe clamping plate is slidably connected to the lower end of the lifting vertical clamp arm, the metal slide plate is threadedly connected to the outward end of the pipe clamping plate, and the vertical threaded rod is fixedly connected to the lower end of the lifting vertical clamp arm.

[0008] Preferably, the metal slide is slidably connected to the lower end surface of the lifting vertical clamp arm, and the metal slide is slidably connected to the upper end surface of the vertical threaded rod. The metal slide slides on the surface of the lifting vertical clamp arm, thereby adjusting the position of the pipe clamping plate, thereby clamping and fixing pipes of different specifications.

[0009] Preferably, the hoisting transverse clamping arm is slidably connected to the inner wall surface of the hoisting shell, and the number of the hoisting transverse clamping arms is two, and the two hoisting transverse clamping arms are distributed on the left and right, so that the positions of the two hoisting transverse clamping arms can be adjusted to clamp pipes of different specifications.

[0010] Preferably, the metal connecting block is slidably connected to the inner wall surface of the lifting shell, the metal connecting block is slidably connected to the outward end surface of the metal slide rod, and the metal connecting block is fixedly connected to the outer surface of the elastic spring. The elastic spring can rebound, and the elastic spring can push the metal connecting block to move left and right inside the lifting shell, thereby improving the position of the metal connecting block.

[0011] Preferably, the metal connecting block is threadedly connected to the inward end of the metal slider, and the metal slider is slidably connected to the inner bottom surface of the lifting shell. The metal slider, the metal connecting block and the lifting transverse clamp arm are threadedly connected, so that the lifting transverse clamp arm can be disassembled and replaced.

[0012] Preferably, the lifting shell is fixedly connected to the bottom surface of the lifting device.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The pipe lifting device for tower crane is provided with a lifting transverse clamping arm, a metal slider and a metal connecting block. The metal slider can threadably connect the lifting transverse clamping arm and the metal connecting block. At the same time, the lifting shell provides a support device for the lifting transverse clamping arm, which is convenient for disassembly and replacement of the lifting transverse clamping arm. It can clamp pipes of different specifications, thereby increasing the service life of the device.

[0015] 2. The pipe lifting device for the tower crane is provided with a lifting vertical clamping arm, a lifting horizontal clamping arm and a pipe clamping plate. The lifting horizontal clamping arm and the lifting vertical clamping arm can be disassembled and replaced, so that different types of lifting vertical clamping arms, lifting horizontal clamping arms and pipe clamping plates can be replaced according to the specifications of the pipe, which can increase the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom surface of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the cross section at AA in the middle;

[0019] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram of the structure at point A;

[0020] Figure 5 This is a three-dimensional schematic diagram of the fixture assembly of the utility model;

[0021] Figure 6 For this utility model Figure 5 A schematic diagram of a partial enlargement of the structure at point B in FIG.

[0022] In the figure: 1. Clamping device; 11. Lifting shell; 12. Elastic spring; 13. Metal slide rod; 14. Clamp assembly; 141. Metal slider; 142. Metal connecting block; 143. Lifting vertical clamp arm; 144. Pipe clamping plate; 145. Metal slide plate; 146. Vertical threaded rod; 147. Lifting horizontal clamp arm; 2. Lifting cable; 3. Lifting device. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 , the utility model provides the following technical solutions:

[0025] A pipe lifting device for a tower crane includes a lifting cable 2 and a sling 3. A clamping device 1 is installed on the bottom surface of the sling 3, and the lifting cable 2 is installed on the top surface of the sling 3. A trolley is installed on the top surface of the lifting cable 2. The trolley runs along the track on the boom and is used to install a pulley block, a steel rope and the sling 3 to achieve luffing operation.

[0026] The clamping device 1 includes a lifting shell 11, an elastic spring 12, a metal slide rod 13 and a clamp assembly 14. The metal slide rod 13 is fixedly connected to the inner wall surface of the lifting shell 11, the lifting shell 11 is fixedly connected to the bottom end surface of the sling 3, the lifting shell 11 is installed at the upper end of the clamp assembly 14, and the elastic spring 12 is installed in the middle position inside the lifting shell 11.

[0027] The clamp assembly 14 includes a metal slider 141, a metal connecting block 142, a lifting vertical clamp arm 143, a pipe clamping plate 144, a metal slide plate 145, a vertical threaded rod 146 and a lifting horizontal clamp arm 147. The metal connecting block 142 is threadedly connected to the inward end of the lifting horizontal clamp arm 147, the metal connecting block 142 is slidably connected to the inner wall surface of the lifting shell 11, the metal connecting block 142 is slidably connected to the outward end surface of the metal slide rod 13, and the metal connecting block 142 is fixedly connected to the elastic spring 12 The outer surface of the lifting shell 11, the elastic spring 12 can rebound, and the elastic spring 12 can push the metal connecting block 142 to move left and right inside the lifting shell 11, thereby improving the position of the metal connecting block 142, and the lifting horizontal clamping arm 147 is threadedly connected to the upper end of the lifting vertical clamping arm 143. The lifting horizontal clamping arm 147 is slidably connected to the inner wall surface of the lifting shell 11. There are two lifting horizontal clamping arms 147, and the two lifting horizontal clamping arms 147 are distributed left and right, so that the two lifting horizontal clamping arms can be adjusted. The position of 147 can clamp pipes of different specifications. The metal slider 141 is slidably connected to the inward end of the lifting horizontal clamping arm 147. The metal connecting block 142 is threadedly connected to the inward end of the metal slider 141. The metal slider 141 is slidably connected to the inner bottom surface of the lifting shell 11. The metal slider 141, the metal connecting block 142 and the lifting horizontal clamping arm 147 are threadedly connected, so that the lifting horizontal clamping arm 147 can be disassembled and replaced. The pipe clamping plate 144 is slidably connected to the lifting vertical clamping arm 147. At the lower end of the clamping arm 143, the metal slide 145 is threadedly connected to the outward end of the pipe clamping plate 144, and the metal slide 145 is slidably connected to the lower end surface of the hoisting vertical clamping arm 143. The metal slide 145 is slidably connected to the upper end surface of the vertical threaded rod 146. The metal slide 145 slides on the surface of the hoisting vertical clamping arm 143, so that the position of the pipe clamping plate 144 can be adjusted, so that pipes of different specifications can be clamped and fixed. The vertical threaded rod 146 is fixedly connected to the lower end of the hoisting vertical clamping arm 143.

[0028] When in use, push the lifting transverse clamp arm 147 from the outside to the inside, so that the lifting transverse clamp arm 147 and the inner wall surface of the metal connecting block 142 slide, and at the same time the metal slider 141 slides inside the lifting transverse clamp arm 147, so that the metal slider 141 and the metal connecting block 142 are connected, and then threaded connection is performed through bolts to thread the metal connecting block 142, the metal slider 141 and the lifting transverse clamp arm 147.

[0029] Push the pipe clamping plate 144 into the lower end of the lifting vertical clamping arm 143, and the outward end of the pipe clamping plate 144 passes through the inner wall surface of the metal slide plate 145. Then turn the nut, which is threadedly connected to the outward end of the pipe clamping plate 144, to determine the position of the pipe clamping plate 144.

[0030] The lifting vertical clamping arm 143 is pushed upwards and inserted into the outward end of the lifting horizontal clamping arm 147 , so that the lifting vertical clamping arm 143 and the lifting horizontal clamping arm 147 can be threadedly connected.

[0031] By pulling the vertical hoisting clamp arm 143 , the vertical hoisting clamp arm 143 can drive the horizontal hoisting clamp arm 147 to move left and right inside the hoisting shell 11 , and the horizontal hoisting clamp arm 147 can drive the metal connecting block 142 to move left and right inside the hoisting shell 11 .

[0032] The metal connecting block 142 can slide on the surface of the metal slide rod 13, and can adjust the distance between the two lifting horizontal clamping arms 147, so that the two lifting horizontal clamping arms 147 can drive the position of the lifting vertical clamping arms 143, and can clamp and fix pipes of different specifications.

[0033] Push the pipe clamping plate 144 downward, and the pipe clamping plate 144 slides on the inner wall surface of the lifting vertical clamping arm 143. The lifting vertical clamping arm 143 can drive the metal slide 145 to slide on the surface of the vertical threaded rod 146, so that the lifting vertical clamping arm 143 and the pipe clamping plate 144 clamp and fix the pipe, and then turn the nut, and the nut rotates on the threaded end surface of the vertical threaded rod 146, so that the pipe can be clamped and fixed.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe lifting device for a tower crane, comprising a lifting cable (2) and a lifting device (3), characterized in that: The bottom surface of the sling (3) is provided with a clamping device (1), and the hoisting cable (2) is provided on the top surface of the sling (3); The clamping device (1) comprises a hanging shell (11), an elastic spring (12), a metal slide bar (13) and a clamp assembly (14); the metal slide bar (13) is fixedly connected to the inner wall surface of the hanging shell (11); the hanging shell (11) is mounted on the upper end of the clamp assembly (14); and the elastic spring (12) is mounted in the middle position inside the hanging shell (11).

2. A pipe hoisting device for a tower crane according to claim 1, characterized in that: The clamp assembly (14) comprises a metal slider (141), a metal connecting block (142), a hoisting vertical clamping arm (143), a pipe clamping plate (144), a metal slide plate (145), a vertical threaded rod (146) and a hoisting transverse clamping arm (147), wherein the metal connecting block (142) is threadedly connected to the inward end of the hoisting transverse clamping arm (147), the hoisting transverse clamping arm (147) is threadedly connected to the upper end of the hoisting vertical clamping arm (143), the metal slider (141) is slidably connected to the inward end of the hoisting transverse clamping arm (147), the pipe clamping plate (144) is slidably connected to the lower end of the hoisting vertical clamping arm (143), the metal slide plate (145) is threadedly connected to the outward end of the pipe clamping plate (144), and the vertical threaded rod (146) is fixedly connected to the lower end of the hoisting vertical clamping arm (143).

3. The pipe hoisting device for a tower crane according to claim 2, characterized in that: The metal slide plate (145) is slidably connected to the lower end surface of the hoisting vertical clamping arm (143), and the metal slide plate (145) is slidably connected to the upper end surface of the vertical threaded rod (146).

4. The pipe hoisting device for a tower crane according to claim 3, characterized in that: The hoisting transverse clamping arms (147) are slidably connected to the inner wall surface of the hoisting shell (11), and there are two hoisting transverse clamping arms (147), which are distributed left and right.

5. The pipe hoisting device for a tower crane according to claim 4, characterized in that: The metal connection block (142) is slidably connected to the inner wall surface of the hanging shell (11), the metal connection block (142) is slidably connected to the outward end surface of the metal slide bar (13), and the metal connection block (142) is fixedly connected to the outer side surface of the elastic spring (12).

6. The pipe hoisting device for a tower crane according to claim 5, characterized in that: The metal connection block (142) is threadedly connected to an inward end of a metal slider (141), and the metal slider (141) is slidably connected to the inner bottom end surface of the hanging shell (11).

7. The pipe hoisting device for a tower crane according to claim 6, characterized in that: The hanging shell (11) is fixedly connected to the bottom end surface of the hanging device (3).

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