Fixed column type pneumatic rotating cantilever crane locking device

Abstract

The utility model provides a fixed column type pneumatic rotary cantilever crane locking device. The fixed column type pneumatic rotating cantilever crane locking device comprises a bottom plate; the stand column is fixedly connected to the top of the bottom plate, a mounting ring is mounted on the outer surface of the stand column through fixing bolts, a locking frame is fixedly connected to the top end of the mounting ring, fixing pieces are fixedly connected to the positions, close to the four directions, of the bottom of the inner wall of the locking frame, and telescopic rods are fixedly connected to the tops of the fixing pieces; and movable rings are installed at the telescopic ends of the four telescopic rods through fixing pieces, a plurality of locking bolts are fixedly connected to the top ends of the movable rings, and limiting strips are installed at the positions, close to the two sides, of the inner wall of the locking frame. According to the fixed column type pneumatic rotating cantilever crane locking device provided by the utility model, the pneumatic rotating assembly is locked through the locking bolt capable of moving up and down, so that the locking effect is improved, the shaking of a cantilever during object hoisting or stress is reduced, and the hoisting stability and safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the locking of pneumatic rotary cantilever crane, and particularly relates to a fixed-column type locking device for a pneumatic rotary cantilever crane. BACKGROUND

[0002] A cantilever crane is a type of crane with a jib hinged at one end to the crane body and a rotatable hook or other load handling device at the other end, which is suitable for use in various industrial environments, such as machining, warehouse logistics and workshop production.

[0003] The fixed-column type pneumatic rotary cantilever crane is fixed to the ground through a stand, and is rotated horizontally by a rotating device. The operator can accurately control the rotation angle by controlling the gas distribution valve, so that the hoisted goods can quickly and accurately reach the hoisting point. However, the hoisting process needs to be coordinated with an electric hoist to lift the heavy object.

[0004] When the cantilever is not rotating, the locking is mainly achieved by the friction in the pneumatic rotation, which has poor stability. During the cantilever is under stress or hoisting, the cantilever is prone to sway due to stress, thereby affecting the stability and safety of hoisting.

[0005] Therefore, it is necessary to provide a fixed-column type locking device for a pneumatic rotary cantilever crane to solve the above technical problems. SUMMARY

[0006] The utility model provides a fixed-column type locking device for a pneumatic rotary cantilever crane, which solves the problem of poor stability of the cantilever when not rotating, which is locked by the friction in the rotating device, and the cantilever is prone to sway after hoisting or under stress, thereby affecting the stability and safety of hoisting.

[0007] To solve the above technical problems, the utility model provides a fixed-column type locking device for a pneumatic rotary cantilever crane, which comprises a bottom plate;

[0008] A stand is fixedly connected to the top of the bottom plate, and an installation ring is installed on the outer surface of the stand through a fixing bolt. A locking frame is fixedly connected to the top end of the installation ring. A fixing piece is fixedly connected to the bottom of the inner wall of the locking frame near the four directions. A telescopic rod is fixedly connected to the top of the fixing piece. An active ring is installed on the telescopic end of the four telescopic rods through the fixing piece. A plurality of locking pins are fixedly connected to the top end of the active ring. A limiting strip is installed on the inner wall of the locking frame near the two sides. Limiting openings are formed on the two surfaces of the inner wall of the active ring. A plurality of contact blocks are installed on the outer surface of the locking frame at the top.

[0009] A pneumatic rotating assembly is installed on the outer surface of the column at the top, one side of the pneumatic rotating assembly is provided with a mounting rack, the other side of the mounting rack is provided with a cantilever, the other side of the mounting rack is provided with a contact sensor at the bottom,

[0010] The outer surface of the locking rack is open, the locking rack is located on the outer surface of the column, the locking bolt passes through the through hole, the limiting hole slides on the outer surface of the limiting strip, the stability of the up-down movement of the movable ring is increased, the bottom of the mounting rack is provided with at least three holes for inserting the locking bolt, at least three locking bolts are inserted from the bottom of the mounting rack when locking is required, the locking stability is increased, the locking bolt can be accurately inserted into the bottom of the mounting rack when the contact block contacts the contact sensor, the bottom of the cantilever is provided with a movable structure, and the movable structure can drive the electric hoist to move.

[0011] Preferably, the bottom of the cantilever is provided with an electric hoist, and the bottom of the electric hoist is provided with a lifting structure.

[0012] Preferably, the other side of the pneumatic rotating assembly is provided with a fixing rack, and the bottom of the cantilever is provided with a reinforcing block at the position connected with the mounting rack.

[0013] The reinforcing block can increase the stability and carrying capacity of the cantilever.

[0014] Preferably, the other side of the fixing rack is provided with a counterweight frame, and the top of the counterweight frame is provided with a counterweight hole.

[0015] The counterweight hole is used for placing a counterweight.

[0016] Preferably, the top of the bottom plate is provided with four mounting holes, and the connection position between the bottom plate and the column is provided with a plurality of stabilizing blocks.

[0017] The mounting holes are located at the positions close to the four corners of the top of the bottom plate.

[0018] Preferably, the top of the bottom plate is provided with a control box, and the front surface of the control box is rotationally connected with a box door.

[0019] The inside of the control box is provided with a controller which can control the operation of the equipment on the remote control bottom plate.

[0020] Compared with the related art, the column type pneumatic rotating cantilever crane locking device has the following beneficial effects:

[0021] This utility model provides a locking device for a fixed-column pneumatic rotary cantilever crane. To increase the stability of locking the fixed-column pneumatic rotary cantilever crane, a locking frame is installed on the outer surface of the column via an mounting ring. Four telescopic rods are installed at the bottom of the inner wall of the locking frame, and movable rings with multiple locking bolts are installed at the telescopic ends of the four telescopic rods, ensuring that each locking bolt passes through a through hole. When the contact sensor on the pneumatic rotary assembly contacts the corresponding contact block on the locking frame, the position of the pneumatic rotary assembly can be determined, facilitating the control of inserting the locking bolts into the bottom of the mounting frame, thus locking the pneumatic rotary assembly. With this design, after the cantilever rotates to the corresponding position, the pneumatic rotary assembly is locked by the vertically movable locking bolts, increasing the locking effect, reducing cantilever swaying when lifting items or under stress, and increasing the stability and safety of lifting. Attached Figure Description

[0022] Figure 1 A schematic diagram of a preferred embodiment of the fixed-column pneumatic rotary cantilever crane locking device provided by this utility model;

[0023] Figure 2 A schematic diagram of the movable ring is provided for this utility model;

[0024] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0025] Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown;

[0026] Figure 5 Provided for this utility model Figure 2 A magnified view of point C shown.

[0027] The following are the labels in the diagram: 1. Base plate, 2. Column, 3. Mounting ring, 4. Fixing bolt, 5. Locking frame, 6. Lifting structure, 7. Electric hoist, 8. Reinforcing block, 9. Cantilever, 10. Mounting frame, 11. Fixing frame, 12. Counterweight port, 13. Counterweight frame, 14. Pneumatic rotating assembly, 15. Movable ring, 16. Limiting strip, 17. Contact sensor, 18. Perforation, 19. Contact block, 20. Limiting port, 21. Locking bolt, 22. Telescopic rod, 23. Fixing plate, 24. Mounting hole, 25. Control box, 26. Box door, 27. Stabilizing block. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,Figure 4 and Figure 5 wherein, Figure 1 The structure schematic diagram of a preferred embodiment of the fixed column type pneumatic rotary cantilever crane locking device provided by the utility model is shown in the figure; Figure 2 The structure schematic diagram of the movable ring provided by the utility model is shown in the figure; Figure 3 The structure schematic diagram of the fixed column type pneumatic rotary cantilever crane locking device provided by the utility model is shown in the figure; Figure 2 The enlarged view of A shown in the figure; Figure 4 The structure schematic diagram of the fixed column type pneumatic rotary cantilever crane locking device provided by the utility model is shown in the figure; Figure 2 The enlarged view of B shown in the figure; Figure 5 The structure schematic diagram of the fixed column type pneumatic rotary cantilever crane locking device provided by the utility model is shown in the figure; Figure 2 The enlarged view of C shown in the figure. The fixed column type pneumatic rotary cantilever crane locking device comprises a bottom plate 1;

[0030] A stand 2 is fixedly connected at the top of the bottom plate 1, an installation ring 3 is installed on the outer surface of the stand 2 through a fixing bolt 4, a locking frame 5 is fixedly connected at the top end of the installation ring 3, a fixing sheet 23 is fixedly connected at the bottom of the inner wall of the locking frame 5 and close to the positions of four directions, an extension rod 22 is fixedly connected at the top of the fixing sheet 23, a movable ring 15 is installed on the extension end of the four extension rods 22 through the fixing sheet 23, a plurality of locking bolts 21 are fixedly connected at the top end of the movable ring 15, a limiting strip 16 is installed at the positions close to the two sides of the inner wall of the locking frame 5, limiting openings 20 are formed on the two surfaces of the inner wall of the movable ring 15, and a plurality of contact blocks 19 are installed on the outer surface of the locking frame 5 and located at the top.

[0031] A pneumatic rotating assembly 14 is installed on the outer surface of the stand 2 and located at the top, an installation frame 10 is installed on one side of the pneumatic rotating assembly 14, a cantilever 9 is installed on the other side of the installation frame 10, and a contact sensor 17 is installed on the other side of the installation frame 10 and located at the bottom.

[0032] The outer surface of the locking frame 5 is open, the locking frame 5 is located on the outer surface of the stand 2, the locking bolts 21 pass through the perforations 18, the limiting openings 20 slide on the outer surface of the limiting strips 16, the stability of the upward and downward movement of the movable ring 15 is increased, at least three holes through which the locking bolts 21 can be inserted are formed at the bottom of the installation frame 10, when locking is needed, at least three locking bolts 21 are inserted from the bottom of the installation frame 10, the locking stability is increased, when the contact blocks 19 and the contact sensor 17 are in contact, the locking bolts 21 can be accurately inserted into the bottom of the installation frame 10, the bottom of the cantilever 9 is provided with the electric hoist 7, the bottom of the cantilever 9 is provided with a movable structure, the electric hoist 7 can be driven to move, the pneumatic rotating assembly 14 comprises a driving mechanism, a rotating body and a rotating shaft, the driving mechanism drives the rotating body to rotate around the rotating shaft, thereby driving the cantilever to rotate in the horizontal direction.

[0033] The bottom of the cantilever 9 is provided with an electric hoist 7, and the bottom of the electric hoist 7 is provided with a hoisting structure 6.

[0034] The hoisting structure comprises a cushion strip or a steel wire and a hoisting hook.

[0035] The other side of the pneumatic rotating assembly 14 is provided with a fixing frame 11, and the bottom of the cantilever 9 is provided with a reinforcing block 8 at the position connected with the mounting frame 10.

[0036] The reinforcing block 8 can increase the stability and bearing capacity of the cantilever 9, and the fixing frame 11 and the mounting frame 10 are opposite in direction.

[0037] The other side of the fixing frame 11 is provided with a counterweight frame 13, and the top of the counterweight frame 13 is provided with a counterweight opening 12.

[0038] The counterweight opening 12 is used for placing counterweights, so as to increase the balance of the stand column 2.

[0039] The top of the bottom plate 1 is provided with four mounting holes 24, and the connection position of the bottom plate 1 and the stand column 2 is provided with a plurality of stabilizing blocks 27.

[0040] The mounting holes 24 are located at the top of the bottom plate 1 and close to the four corners, and the stabilizing blocks 27 increase the stability of the connection of the stand column 2 and the bottom plate 1.

[0041] The top of the bottom plate 1 is provided with a control box 25, and the front surface of the control box 25 is rotatably connected with a box door 26.

[0042] The inside of the control box 25 is provided with a controller which can control the remote control of the equipment on the bottom plate 1, and the box door 26 is provided with a lock.

[0043] The working principle of the fixed column type pneumatic rotating cantilever crane locking device is as follows:

[0044] One locking frame 5 is installed on the outer surface of the stand column 2 through the mounting ring 3, four telescopic rods 22 are installed on the inner wall of the bottom of the locking frame 5, the movable ring 15 provided with a plurality of locking pins 21 is installed on the telescopic end of the four telescopic rods 22, and each locking pin 21 is ensured to pass through the perforated hole 18, the contact sensor 17 on the pneumatic rotating assembly 14 and the contact block 19 at the corresponding position on the locking frame 5 are in contact, so that the position of the pneumatic rotating assembly 14 can be judged, and then the locking pin 21 is inserted into the control at the bottom of the mounting frame 10, so that the pneumatic rotating assembly 14 can be locked, and after the cantilever 9 is rotated to the corresponding position.

[0045] Compared with the related art, the fixed column type pneumatic rotating cantilever crane locking device has the following beneficial effects:

[0046] In order to increase the stability of the column type pneumatic rotary cantilever crane locking, a locking frame 5 is installed on the outer surface of the column 2 through the installation ring 3, four telescopic rods 22 are installed on the bottom of the inner wall of the locking frame 5, and the movable ring 15 with a plurality of locking pins 21 is installed on the telescopic end of the four telescopic rods 22, and each locking pin 21 is ensured to pass through the perforated hole 18, the contact sensor 17 on the pneumatic rotary assembly 14 and the contact block 19 on the corresponding position of the locking frame 5 are contacted, the position of the pneumatic rotary assembly 14 can be judged, so that the locking pin 21 is inserted into the control at the bottom of the mounting frame 10, the pneumatic rotary assembly 14 can be locked, through the design, after the cantilever 9 is rotated to the corresponding position, the pneumatic rotary assembly 14 is locked by the locking pin 21 which can move up and down, the locking effect is increased, the cantilever 9 is reduced when hoisting articles or under stress, the stability and safety of hoisting are increased.

[0047] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A fixed-column type pneumatic rotary cantilever crane locking device, characterized in that, include: Base plate; The column is fixedly connected to the top of the base plate. An installation ring is installed on the outer surface of the column by fixing bolts. A locking frame is fixedly connected to the top of the installation ring. Fixing plates are fixedly connected to the bottom of the inner wall of the locking frame near the four directions. Telescopic rods are fixedly connected to the top of the fixing plates. Movable rings are installed at the telescopic ends of the four telescopic rods through the fixing plates. Multiple locking bolts are fixedly connected to the top of the movable rings. Limit strips are installed on the inner wall of the locking frame near both sides. Limit openings are opened on both sides of the inner wall of the movable rings. Multiple contact blocks are installed on the top of the outer surface of the locking frame. A pneumatic rotating assembly is mounted on the top of the outer surface of the column. A mounting bracket is mounted on one side of the pneumatic rotating assembly, a cantilever is mounted on the other side of the mounting bracket, and a contact sensor is mounted on the bottom of the other side of the mounting bracket.

2. The fixed-column pneumatic rotary cantilever crane locking device according to claim 1, characterized in that, An electric hoist is installed at the bottom of the cantilever, and a lifting structure is installed at the bottom of the electric hoist.

3. The fixed-column pneumatic rotary cantilever crane locking device according to claim 1, characterized in that, A mounting bracket is installed on the other side of the pneumatic rotating assembly, and a reinforcing block is installed at the bottom of the cantilever where it connects to the mounting bracket.

4. The fixed-column pneumatic rotary cantilever crane locking device according to claim 3, characterized in that, A counterweight frame is installed on the other side of the fixing frame, and a counterweight opening is provided at the top of the counterweight frame.

5. The fixed-column pneumatic rotary cantilever crane locking device according to claim 1, characterized in that, The top of the base plate has four mounting holes, and multiple stabilizing blocks are installed at the connection between the base plate and the column.

6. The fixed-column pneumatic rotary cantilever crane locking device according to claim 1, characterized in that, A control box is mounted on the top of the base plate, and a door is rotatably connected to the front of the control box.

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