A column reinforcement device for a cantilever crane

Abstract

The present invention discloses a column reinforcement device for a cantilever crane, which includes a column, a base and a hoop. A chute is provided on the inner wall of one side of the hoop, and a slider is slidably connected to the inner wall of one side of the chute. A connecting block is welded to the top of the slider, and a second support rod is welded to the top of the connecting block. The top end of the second support rod is welded with a tray, and a spring is fixed to the inner wall of the top of the tray by bolts. The other end of the spring is fixed to a support plate by bolts. One side of the column is rotatably connected with a cantilever, and the cantilever is in contact with the support plate. A multi-connecting plate is fixed to one side of the hoop by bolts. The present invention can provide a supporting force for the cantilever, reinforce the strength of the cantilever, improve the bearing capacity of the cantilever, and also play a role in shock absorption and pressure reduction, protect the device, extend the service life of the device, and prevent the device from slipping to avoid affecting the normal working process.

Description

Technical Field

[0001] The present invention relates to the technical field of crane equipment, and particularly relates to a reinforcing device for the column of a jib crane. Background Art

[0002] The jib crane is a medium and small-sized lifting equipment developed in recent years, which has the characteristics of high efficiency, energy saving, time and labor saving, flexibility, etc. At present, all jib cranes are in contact with the ground through columns and are fixed to the ground by bolts. Since the contact area between the base of the column and the ground is small, problems such as insufficient stability will occur when the jib crane is working. Therefore, we need to reinforce the crane column. However, there are still various problems with various column reinforcement devices for jib cranes on the market.

[0003] For example, a column reinforcement device for a jib crane disclosed in the authorized publication number CN209242529U includes a column body. A plurality of symmetrically arranged first grooves are formed on the outer side wall of the column body. An annular plate is arranged outside the column body, and symmetrically arranged arc-shaped pressing plates are installed inside the annular plate. The above patent has the following defects: it does not reinforce the jib of the crane. Therefore, we propose a column reinforcement device for a jib crane. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a column reinforcement device for a jib crane.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A column reinforcement device for a jib crane includes a column, a base and a hoop. A chute is formed on the inner wall of one side of the hoop. A slider is slidably connected to the inner wall of one side of the chute. A connecting block is welded to the top of the slider. A second support rod is welded to the top of the connecting block. A tray is welded to the top end of the second support rod. A spring is fixed to the inner wall of the top of the tray by bolts, and the other end of the spring is fixed to a supporting plate by bolts. One side of the column is rotatably connected to a jib, and the jib is in contact with the supporting plate.

[0007] Furthermore, a plurality of connecting plates are fixed to one side of the hoop by bolts, and a plurality of threaded holes are formed on one side of the connecting plates.

[0008] Furthermore, a screw rod is inserted into the threaded hole, and a fastening bolt is sleeved on one side of the screw rod.

[0009] Furthermore, a plurality of mounting plates are welded to one side of the hoop, and a pawl is rotatably connected to one side of the mounting plate.

[0010] Further, a plug hole is formed on one side of the mounting plate, a rotating shaft is inserted into the plug hole, and a ratchet wheel is key-connected to one end of the rotating shaft.

[0011] Further, a first support rod is rotatably connected to the top of the base, and the first support rod is fixedly connected to the rotating shaft.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. Through the arrangement of the connecting plate, in cooperation with the fastening bolts, the two hoop fasteners can be connected together, facilitating subsequent operations. Through the arrangement of the spring, a shock absorption and pressure reduction effect can be achieved, protecting the device and extending the service life of the device.

[0014] 2. Through the arrangement of the second support rod, it can move upward under the push of the base, thereby driving the hoop fastener and the second support rod to move upward together. Through the arrangement of the support plate, in cooperation with the tray, a supporting force can be provided for the cantilever, strengthening the strength of the cantilever and improving the bearing capacity of the cantilever.

[0015] 3. Through the arrangement of the ratchet wheel, in cooperation with the pawl, the device can be prevented from slipping, so as not to affect the normal working process.

[0016] 4. Through the arrangement of the slider, in cooperation with the chute, when the cantilever is rotated, the second support rod and the tray rotate around the column together. In this way, the cantilever can be continuously strengthened during rotation, preventing the hanging weight from being too heavy, causing the crane to tip over, resulting in personal injuries and economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional structural schematic diagram of a column reinforcement device for a cantilever crane according to the present invention;

[0018] Figure 2 FIG. is a partial cross-sectional structural schematic diagram of a column reinforcement device for a cantilever crane according to the present invention;

[0019] Figure 3 FIG. is a structural schematic diagram of a support plate of a column reinforcement device for a cantilever crane according to the present invention.

[0020] In the figure: 1, base; 2, first support rod; 3, fastening bolt; 4, connecting plate; 5, hoop fastener; 6, column; 7, cantilever; 8, tray; 9, second support rod; 10, connecting block; 11, mounting plate; 12, ratchet wheel; 13, chute; 14, slider; 15, pawl; 16, spring; 17, support plate. DETAILED DESCRIPTION OF THE INVENTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. It should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

[0022] Referring to Figures 1-3 , a column reinforcement device for a cantilever crane, comprising a column 6, a base 1 and a hoop 5. A chute 13 is provided on the inner wall of one side of the hoop 5. A slider 14 is slidably connected to the inner wall of one side of the chute 13. A connecting block 10 is welded to the top of the slider 14. A second support rod 9 is welded to the top of the connecting block 10. A tray 8 is welded to the top end of the second support rod 9. A spring 16 is fixed to the inner wall of the top of the tray 8 by bolts. The spring 16 plays a role in shock absorption and pressure reduction. The other end of the spring 16 is fixed to a support plate 17 by bolts. One side of the column 6 is rotatably connected to a cantilever 7. With the cooperation of the support plate 17 and the tray 8, a supporting force is provided for the cantilever 7 to reinforce the strength of the cantilever 7. And the cantilever 7 is in contact with the support plate 17. With the arrangement of the slider 14 and the cooperation of the chute 13, when the cantilever 7 rotates, the second support rod 9 and the tray 8 rotate around the column 6 together.

[0023] A plurality of connecting plates 4 are fixed to one side of the hoop 5 by bolts. A plurality of threaded holes are provided on one side of the connecting plates 4. Screws are inserted into the threaded holes. A fastening bolt 3 is sleeved on one side of the screw. With the cooperation of the connecting plates 4 and the fastening bolt 3, the two hoops 5 are connected together. A plurality of mounting plates 11 are welded to one side of the hoop 5. A pawl 15 is rotatably connected to one side of the mounting plate 11. A socket hole is provided on one side of the mounting plate 11. A rotating shaft is inserted into the socket hole. One end of the rotating shaft is key-connected to a ratchet 12. With the cooperation of the ratchet 12 and the pawl 15, the device is prevented from slipping. A first support rod 2 is rotatably connected to the top of the base 1. With the push of the base 1, the second support rod 9 moves upward, thereby driving the hoop 5 and the second support rod 9 to move upward together. And the first support rod 2 is fixedly connected to the rotating shaft.

[0024] Working principle of this embodiment: First, through the connecting plate 4 cooperating with the fastening bolts 3, the two hoop fasteners 5 are connected together. Then, the first support rod 2 moves upward under the push of the base 1, thereby driving the hoop fastener 5 and the second support rod 9 to move upward together. Through the support plate 17 cooperating with the tray 8, a supporting force is provided for the cantilever 7. The spring 16 plays a role in shock absorption and pressure reduction. Through the ratchet 12 cooperating with the pawl 15, when the ratchet 12 rotates in reverse, the pawl 15 fixes the ratchet 12 to prevent the device from slipping. And through the setting of the slider 14 cooperating with the chute 13, when the cantilever 7 rotates, the second support rod 9 and the tray 8 rotate around the column 6 together, facilitating the transfer of the device.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A reinforcing device for the column of a cantilever crane, comprising a column (6), a base (1) and a hoop (5), characterized in that, a chute (13) is formed in the inner wall of one side of the hoop (5), a slider (14) is movably connected to the inner wall of one side of the chute (13), a connecting block (10) is fixedly connected to the top of the slider (14), a second support rod (9) is fixedly connected to the top of the connecting block (10), the top of the second support rod (9) is fixedly connected to a tray (8), a spring (16) is fixedly connected to the inner wall of the top of the tray (8), the other end of the spring (16) is fixedly connected to a support plate (17), one side of the column (6) is movably connected to a cantilever (7), and the cantilever (7) is in contact with the support plate (17); a plurality of mounting plates (11) are fixedly connected to one side of the hoop (5), and a pawl (15) is movably connected to one side of the mounting plate (11); a plug hole is formed in one side of the mounting plate (11), a rotating shaft is movably connected in the plug hole, and a ratchet wheel (12) is fixedly connected to one end of the rotating shaft; a first support rod (2) is movably connected to the top of the base (1), and is fixedly connected between the first support rod (2) and the rotating shaft; a plurality of connecting plates (4) are fixedly connected to one side of the hoop (5), and a plurality of threaded holes are formed in one side of the connecting plate (4).

2. The reinforcing device for the column of a cantilever crane according to claim 1, characterized in that, a screw rod is movably connected in the threaded hole, and a fastening bolt (3) is movably connected to one side of the screw rod.

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