A suspension rod structure of a construction hoist

Abstract

The present invention belongs to the field of lifting devices, and specifically is a boom structure of a construction elevator, comprising a boom body, a winch fixedly connected to the top of the boom body, a steel wire rope wound on the winch, a bottom end of the steel wire rope fixedly connected to a lifting ring, a bottom end of the lifting ring fixedly connected to a connecting column, the connecting column fixedly connected to the top of a lifting frame, a rotating mechanism is arranged inside the lifting frame, the rotating mechanism is used to switch between a first hook and a second hook, a clamping mechanism is arranged at the bottom end of the lifting frame, the clamping mechanism is used to assist in clamping and fixing a fixing seat, the rotating mechanism comprises a hydraulic cylinder and a piston rod; through the structural design of the rotating mechanism, the function of switching between the first hook and the second hook, two different hooks, is realized, so that the hook can be flexibly selected according to different lifted goods.

Description

Technical Field

[0001] The invention relates to the field of lifting devices, in particular to a suspension rod structure of a construction hoist. Background Art

[0002] A construction elevator is a piece of equipment used to transport workers and construction materials. A boom is fixed on the top of the construction elevator. The boom is used to install and disassemble the parts of the construction elevator. A winch is used inside the boom to control the retraction and release of the wire rope.

[0003] According to the patent document: CN202211690934.3, a boom structure of a construction elevator is proposed, including a fixed seat, the top surface of the fixed seat is fixedly connected to a column, the surface of the column is provided with a mounting seat, the right side of the mounting seat is provided with a crossbeam, the top and bottom surfaces of the crossbeam are fixedly connected to a mounting plate, the surface of the mounting plate is threadedly connected with a third fastening bolt, and the third fastening bolt is threadedly connected to the mounting seat, a transverse driving assembly is provided on the surface of the crossbeam, a shell is provided at the bottom of the transverse driving assembly, a lifting driving assembly is provided on the surface of the shell, a locking assembly is provided between the transverse driving assembly and the shell, and a cargo positioning assembly is provided below the lifting driving assembly, which realizes the effect of facilitating quick disassembly of the boom structure during use, thereby reducing the volume of the boom structure, making it more convenient to transfer the boom structure, and having better practicality.

[0004] However, in the above-mentioned technology, a suspension rod structure of a construction elevator is fixed together with a hook and a lifting frame by a threaded connection, and sometimes different hooks are selected according to different lifting goods. Therefore, it is necessary to disassemble and install the hook and the lifting frame, which is time-consuming and cannot flexibly select the hook. Therefore, a suspension rod structure of a construction elevator is proposed to address the above-mentioned problems. Summary of the invention

[0005] In order to solve the problem that a hanger rod structure of a construction elevator in the prior art is used, a hook and a lifting frame are fixed together by means of threaded connection, but in actual use, different hooks are sometimes selected according to different lifting goods, so it is necessary to disassemble and replace the hook and the lifting frame, which is time-consuming, and the hook cannot be flexibly selected and switched according to different work needs. The present invention proposes a hanger rod structure for a construction elevator.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the boom structure of a construction elevator described in the present invention includes a boom body, the top of the boom body is fixedly connected to a winch, a steel wire rope is wound on the winch, the bottom end of the steel wire rope is fixedly connected to a lifting ring, the bottom end of the lifting ring is fixedly connected to a connecting column, the connecting column is fixedly connected to the top of a lifting frame, a rotating mechanism is arranged inside the lifting frame, the rotating mechanism is used to switch between a first hook and a second hook, and a clamping mechanism is arranged at the bottom end of the lifting frame, the clamping mechanism is used to assist in clamping and fixing the fixing seat.

[0007] Preferably, the rotating mechanism includes a hydraulic cylinder and a piston rod, one side of the hydraulic cylinder and the piston rod are fixedly connected to a first connecting block, the first connecting block is rotatably connected to the rotating arm, the rotating arm is rotatably connected to the second connecting block near the middle, the second connecting block is fixedly connected to the left and right sides of the lifting frame, the bottom end of the rotating arm is fixedly connected to the first hook, the rotating arm is fixedly connected to a fixing rod at a position close to the first connecting block, the bottom end of the fixing rod is rotatably connected to the connecting rod, the bottom end of the connecting rod is rotatably connected to the top end of the fixing seat, the fixing seat is inserted in the bottom end of the lifting frame, the bottom end of the fixing seat is fixedly connected to the second hook, the front and rear sides of the fixing seat are fixedly connected to the bottom end of the connecting frame, the top end of the connecting frame passes through the top end of the lifting frame, and the top end of the connecting frame is fixedly connected to the fixing collar.

[0008] Preferably, the clamping mechanism includes a third connecting block, the third connecting block is fixedly connected to the bottom end of the fixing rod, the bottom end of the third connecting block is rotatably connected to the top rod, the outer side of the top rod is sleeved with a rectangular sleeve, the rectangular sleeve is fixedly connected to the bottom end of the inner wall of the lifting frame, the bottom end of the top rod is trapezoidal in design, the bottom end of the top rod abuts against the abutment block, the side of the abutment block away from the top rod is fixedly connected to the insertion rod, the insertion rod is inserted in the fixing block, the fixing block is fixedly connected to the bottom end of the lifting frame, the side of the insertion rod away from the fixing block is fixedly connected with a clamping ring, the inner side of the clamping ring abuts against the fixing seat, the outer side of the insertion rod is sleeved with a spring, and the two sides of the spring are respectively fixedly connected to the clamping ring and the fixing block.

[0009] Preferably, a support assembly is provided on the rotating arm, and the support assembly includes a fixing frame, which is fixedly connected to the front and rear sides of the rotating arm, and the bottom end of the fixing frame abuts against a transverse mounting frame, and the transverse mounting frame is fixedly connected to the left and right sides of the connecting frame.

[0010] Preferably, both the front and rear sides of the hydraulic cylinder are fixedly connected with protrusions, the protrusions are provided with two groups of slots, the insides of the slots are slidably connected with blocks, and the blocks are fixedly connected to the connecting frame.

[0011] Preferably, a sliding block is fixedly connected to one side of the connecting frame away from the clamping block, and the sliding block is slidably connected to the inside of a sliding groove, and the sliding groove is provided on the front and rear sides of the inner wall of the lifting frame.

[0012] Preferably, the transverse mounting frame is provided with a plurality of groups of circular holes, long rods are inserted into the circular holes, the top ends of the long rods are fixedly connected to the inner wall of the lifting frame, the top ends of the inner wall of the lifting frame are fixedly connected to four groups of pads, and the bottom ends of the pads are arc-shaped.

[0013] Preferably, the bottom end of the winch is fixedly connected with a fixed sleeve, the fixed sleeve is sleeved on the outside of the wire rope, a movable sleeve is sleeved inside the fixed sleeve, the movable sleeve is T-shaped, the inner wall of the fixed sleeve is fixedly connected with four groups of fixed columns, the fixed columns are inserted in the top of the movable sleeve, the outer side of the fixed sleeve is rotatably connected with a first connecting rod, the bottom end of the first connecting rod is rotatably connected to a connecting seat, the bottom end of the connecting seat is rotatably connected to the top of a second connecting rod, the bottom end of the second connecting rod is rotatably connected to the top of a sliding sleeve, the sliding sleeve is sleeved on the outside of the wire rope, four groups of grooves are opened on the inner wall of the sliding sleeve, the inner wall of the groove is rotatably connected to a plurality of rotating blocks, and the rotating blocks are in contact with the wire rope.

[0014] Preferably, the fixing seat is T-shaped, an annular groove is formed at the bottom end of the fixing seat, an annular gasket is fixedly connected to the inside of the annular groove, and the annular gasket is made of rubber.

[0015] Preferably, two groups of guide columns are fixedly connected to the top of the lifting frame, and the guide columns are inserted into the top of the connecting frame, and the guide columns are located at the front and rear sides of the connecting columns.

[0016] The present invention is beneficial in that:

[0017] 1. The present invention realizes the function of switching between the first hook and the second hook through the structural design of the rotating mechanism, so that the hook can be flexibly selected according to the different goods to be hoisted, and solves the problem that in the prior art, a hanger structure of a construction hoist is fixed together with a hoisting frame by a threaded connection, but in actual use, different hooks are sometimes selected according to different hoisted goods, so it is time-consuming to disassemble and replace the hook and the hoisting frame, and the hook cannot be flexibly selected and switched according to different work needs;

[0018] 2. The present invention realizes the function of assisting in clamping and fixing the second hook through the structural design of the clamping mechanism, so that when the goods are lifted by the second hook, the two sets of clamping rings can reduce the shaking of the second hook on the bottom end of the lifting frame by clamping the fixing seat;

[0019] 3. The present invention adopts the structural design of the support assembly, whereby the lateral mounting frames fixed on the left and right sides of the connecting frame abut against the fixing frames fixed on the front and rear sides of the rotating arm, thereby supporting the rotating arm so as to fix the angle of the rotating arm at this time and prevent it from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the bottom end of the lifting frame of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure inside the lifting frame of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the rotating mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection structure of the connection frame of the present invention;

[0026] Figure 6 It is a schematic diagram of the side structure of the lifting frame of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0028] Figure 8 It is a schematic cross-sectional structure diagram of the lifting frame of the present invention;

[0029] Fig. 9 is a schematic diagram of the connection structure of the second hook of the present invention;

[0030] Fig.10 It is a schematic diagram of the connection structure of the fixing sleeve of the present invention;

[0031] Fig.11 It is a schematic diagram of the cross-sectional structure of the fixing sleeve of the present invention.

[0032] In the figure: 1, boom body; 20, capstan; 21, wire rope; 22, lifting ring; 23, lifting frame; 24, connecting column; 25, hydraulic cylinder; 26, piston rod; 27, first connecting block; 28, rotating arm; 30, first hook; 31, second connecting block; 32, fixing rod; 33, connecting rod; 34, fixing seat; 35, second hook; 36, third connecting block; 37, top rod; 38, abutment block; 39, fixing block; 41, clamping ring; 42, plug rod; 43, spring; 44, torque shaped sleeve; 45, annular gasket; 46, annular groove; 47, fixed frame; 48, horizontal mounting frame; 49, round hole; 50, slider; 51, slide groove; 52, long rod; 53, cushion block; 54, clamping block; 55, protrusion; 56, clamping groove; 57, fixed collar; 58, guide column; 59, connecting frame; 60, fixed sleeve; 61, movable sleeve; 62, first connecting rod; 63, connecting seat; 64, second connecting rod; 65, sliding sleeve; 66, fixed column; 67, rotating block; 68, groove. DETAILED DESCRIPTION

[0033] 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 described embodiments 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 creative work are within the scope of protection of the present invention. Example

[0034] See also Figure 1 - Fig.11 As shown, a boom structure of a construction hoist comprises a boom body 1, a winch 20 is fixedly connected to the top of the boom body 1, a steel wire rope 21 is wound on the winch 20, the bottom end of the steel wire rope 21 is fixedly connected to a lifting ring 22, the bottom end of the lifting ring 22 is fixedly connected to a connecting column 24, the connecting column 24 is fixedly connected to the top of a lifting frame 23, a rotating mechanism is arranged inside the lifting frame 23, the rotating mechanism is used to switch between a first hook 30 and a second hook 35, and a clamping mechanism is arranged at the bottom end of the lifting frame 23, the clamping mechanism is used to assist in clamping and fixing a fixing seat 34;

[0035] The rotating mechanism comprises a hydraulic cylinder 25 and a piston rod 26, one side of each of the hydraulic cylinder 25 and the piston rod 26 is fixedly connected with a first connecting block 27, the first connecting block 27 is rotatably connected to a rotating arm 28, the rotating arm 28 is rotatably connected to a second connecting block 31 near the middle, the second connecting block 31 is fixedly connected to the left and right sides of the lifting frame 23, the bottom end of the rotating arm 28 is fixedly connected with a first hook 30, the rotating arm 28 is fixedly connected with a fixing rod 32 at a position close to the first connecting block 27, the bottom end of the fixing rod 32 is rotatably connected to a connecting rod 33, the bottom end of the connecting rod 33 is rotatably connected to the top end of a fixing seat 34, the fixing seat 34 is inserted at the bottom end of the lifting frame 23, the bottom end of the fixing seat 34 is fixedly connected with a second hook 35, the front and rear sides of the fixing seat 34 are fixedly connected to the bottom end of a connecting frame 59, the top end of the connecting frame 59 passes through the top end of the lifting frame 23, and the top end of the connecting frame 59 is fixedly connected to a fixing collar 57;

[0036] The clamping mechanism includes a third connecting block 36, which is fixedly connected to the bottom end of the fixing rod 32, and the bottom end of the third connecting block 36 is rotatably connected to the top rod 37. The outer side of the top rod 37 is sleeved with a rectangular sleeve 44, and the rectangular sleeve 44 is fixedly connected to the bottom end of the inner wall of the lifting frame 23. The bottom end of the top rod 37 is trapezoidal in design, and the bottom end of the top rod 37 abuts against the abutment block 38. The side of the abutment block 38 away from the top rod 37 is fixedly connected to the insertion rod 42, and the insertion rod 42 is inserted in the fixing block 39, and the fixing block 39 is fixedly connected to the bottom end of the lifting frame 23. The side of the insertion rod 42 away from the fixing block 39 is fixedly connected with a clamping ring 41, and the inner side of the clamping ring 41 abuts against the fixing seat 34. The outer side of the insertion rod 42 is sleeved with a spring 43, and the two sides of the spring 43 are respectively fixedly connected to the clamping ring 41 and the fixing block 39;

[0037] The rotating arm 28 is provided with a support assembly, which includes a fixing frame 47, which is fixedly connected to the front and rear sides of the rotating arm 28, and the bottom end of the fixing frame 47 abuts against a transverse mounting frame 48, and the transverse mounting frame 48 is fixedly connected to the left and right sides of the connecting frame 59;

[0038] In the prior art, a boom structure of a construction hoist is used, in which a hook and a lifting frame are fixed together by a threaded connection. However, in actual use, different hooks are sometimes selected according to different goods to be lifted. Therefore, it is time-consuming to disassemble and replace the hook and the lifting frame, and the hook cannot be flexibly selected and switched according to different work needs. The structural design of the rotating mechanism realizes the function of switching between the first hook 30 and the second hook 35. When working, a winch 20 is fixed to the top of the boom body 1, and the wire rope 21 is retracted and released by the winch 20 to lift the goods. The wire rope 21 is connected to the connecting column 24 fixed on the lifting frame 23 through two sets of lifting rings 22. When the hook is to be switched, the piston rod 26 inside the hydraulic cylinder 25 is extended first. During the extension of the piston rod 26, the hydraulic cylinder 25 moves away from the piston rod 26 and the piston rod 26 is fixed with the first connecting block 27, and the first connecting block 27 is rotatably connected to the rotating arm 28, and the rotating arm 28 is rotatably connected to the second connecting block 31. Therefore, the hydraulic cylinder 25 and the piston rod 26 will push the two sets of rotating arms 28 to rotate, and the hydraulic cylinder 25 and the piston rod 26 themselves will also move upward. During the rotation of the two sets of rotating arms 28, the fixed rod 32 fixed on the rotating arm 28 will pull the connecting rod 33, and the bottom end of the connecting rod 33 is rotatably connected to the left and right sides of the top of the fixing seat 34. When the fixing rod 32 pulls the connecting rod 33, the connecting rod 33 will also pull the fixing seat 34 upward. When the fixing seat 34 moves upward inside the lifting frame 23, the connecting frames 59 fixed on the front and rear sides thereof will also move upward. The top of the connecting frame 59 passes through the top of the lifting frame 23, so as to guide the movement of the fixing seat 34 through the connecting frame 59, ensuring that the fixing seat 34 can only move in the vertical direction. The second hook 35 fixed on the bottom end of the fixing seat 34 will also move synchronously with the fixing seat 34. When the rotating arm 28 rotates to the maximum angle, the first hook 30 fixed on the bottom end of the rotating arm 28 will be in a horizontal state, and the first hook 35 can be used. 0 to lift the goods, and the top part of the second hook 35 will move into the interior of the lifting frame 23 to ensure that the second hook 35 will not hinder the normal lifting of the first hook 30. Similarly, when the second hook 35 is to be used to lift the goods, it is only necessary to retract the piston rod 26 into the interior of the hydraulic cylinder 25, and the rotating arm 28 will rotate again to gradually expand the two groups of first hooks 30. While the two groups of first hooks 30 gradually move away from each other, the fixing seat 34 will also gradually move downward, and the second hook 35 will gradually extend from the bottom end of the lifting frame 23 until the fixing seat 34 abuts against the inner wall of the bottom end of the lifting frame 23. At this time, the goods can be lifted by the second hook 35. At this point, the switching operation of the first hook 30 and the second hook 35 is completed.The top ends of the two groups of connecting frames 59 are connected together by a fixing ring 57, so that the two groups of connecting frames 59 can be connected together, so that the connecting frames 59 can remain stable during the upward movement. The size of the fixing ring 57 is larger than the connecting column 24, so that the fixing ring 57 will not rub against the connecting column 24 during the movement.

[0039] The structural design of the clamping mechanism realizes the function of assisting the clamping and fixing of the second hook 35, so that when the second hook 35 is used to lift the goods, the two sets of clamping rings 41 can reduce the shaking of the second hook 35 on the bottom end of the lifting frame 23 by clamping the fixing seat 34. When the second hook 35 is used to lift the goods, the third connecting block 36 is fixed to the bottom end of the fixing rod 32, and the bottom end of the third connecting block 36 is rotatably connected to the top rod 37, and the bottom end of the top rod 37 is abutted against the abutment block 38. In this way, the abutment block 38 is supported, and the spring 43 sleeved on the insertion rod 42 is in a stretched state. The clamping ring 41 fixed to one side of the spring 43 can keep in contact with the fixing seat 34 and clamp the fixing seat 34, so that the second hook 35 fixed on the bottom end of the fixing seat 34 can keep stable when lifting goods without causing large shaking. When the rotating arm 28 rotates, the fixing rod 32 will drive the third connecting block 36 to move upward, and the third connecting block 36 will drive the top rod 37 to move upward. When the push rod 37 moves upward, the bottom end of the push rod 37 will separate from the abutment block 38. Since the abutment block 38 does not abut against the push rod 37, the two sets of clamping rings 41 will separate from each other under the action of the spring 43, thereby releasing the clamping fixation of the fixing seat 34. A rectangular sleeve 44 is sleeved on the outer side of the push rod 37. The rectangular sleeve 44 is fixed on the inner wall of the lifting frame 23. The design of the rectangular sleeve 44 is to extend the contact length between the push rod 37 and the lifting frame 23, ensuring that the push rod 37 is in the process of moving upward. The push rod 37 and the abutment block 38 are both designed in a trapezoidal shape so that the push rod 37 can smoothly push the abutment block 38 to move. The side of the abutment block 38 away from the push rod 37 is fixed on the insertion rod 42, and the insertion rod 42 is inserted on the fixed block 39. The clamping ring 41 is supported by the contact between the inner wall of the fixed block 39 and the insertion rod 42 to prevent the clamping ring 41 from tilting downward under the action of gravity, resulting in a poor clamping effect on the fixed seat 34.

[0040] Through the structural design of the support assembly, the transverse mounting frames 48 fixed on the left and right sides of the connecting frame 59 abut against the fixing frames 47 fixed on the front and rear sides of the rotating arm 28, so as to support the rotating arm 28, so as to fix the angle of the rotating arm 28 at this time to prevent it from rotating. When the second hook 35 is used to hoist the goods, the two groups of first hooks 30 are in an open state at this time to ensure that the first hook 30 does not affect the second hook 35. At this time, the fixing frames 47 fixed on the front and rear sides of the rotating arm 28 will abut against the transverse mounting frames 48. The transverse mounting frame 48 is fixed on the left and right sides of the connecting frame 59, and the bottom end of the fixing frame 47 and the top end of the transverse mounting frame 48 are both provided with inclined surfaces to increase the contact area between the fixing frame 47 and the transverse mounting frame 48, so that the abutment effect between the fixing frame 47 and the transverse mounting frame 48 is better. Through the abutment between the fixing frame 47 and the transverse mounting frame 48, the rotating arm 28 can be supported and fixed to prevent the rotating arm 28 on one side from being entangled with the hydraulic cylinder 25 or the piston rod 26 when it is hit by the outside world, thereby affecting the normal operation of the second hook 35. Example

[0041] See also Figure 1 - Fig.11 As shown, compared with Example 1, as another embodiment of the present invention, the front and rear sides of the hydraulic cylinder 25 are fixedly connected with a protrusion 55, and the protrusion 55 is provided with two groups of slots 56, and the inside of the slot 56 is slidably connected with a block 54, and the block 54 is fixedly connected to the connecting frame 59;

[0042] During operation, protrusions 55 are fixed on both the front and rear sides of the hydraulic cylinder 25, and two groups of slots 56 are provided on the protrusions 55. When the hydraulic cylinder 25 moves, the fixed slots 56 in the protrusions 55 will contact the blocks 54, so as to limit the movement of the hydraulic cylinder 25 in the front and rear directions and prevent the hydraulic cylinder 25 from shaking in the front and rear directions.

[0043] The connecting frame 59 is fixedly connected to a side away from the block 54 with a slider 50, and the slider 50 is slidably connected to the inside of a slide groove 51, and the slide groove 51 is provided on the front and rear sides of the inner wall of the lifting frame 23;

[0044] When working, the top part of the connecting frame 59 is L-shaped, and the bottom end of the connecting frame 59 is separately provided with an arc surface corresponding to the fixing seat 34 to facilitate connection with the fixing seat 34. A slider 50 is fixed on the side of the connecting frame 59 away from the block 54. When the fixing seat 34 drives the connecting frame 59 to move, the slider 50 will slide inside the slide groove 51, so that the connecting frame 59 can remain stable during the movement. The slider 50 and the slide groove 51 both adopt a trapezoidal design, which can improve the connection strength between the two sets of connecting frames 59 and the inner wall of the lifting frame 23.

[0045] The transverse mounting frame 48 is provided with a plurality of circular holes 49, in which a long rod 52 is inserted, and the top of the long rod 52 is fixedly connected to the inner wall of the lifting frame 23, and the top of the inner wall of the lifting frame 23 is fixedly connected with four groups of cushion blocks 53, and the bottom ends of the cushion blocks 53 are designed to be arc-shaped;

[0046] During operation, a plurality of groups of circular holes 49 are provided on the transverse mounting frame 48, and the distances between two adjacent groups of circular holes 49 are the same. Long rods 52 are inserted in the circular holes 49, and the top ends of the long rods 52 are fixed on the inner wall of the lifting frame 23. When the connecting frame 59 drives the transverse mounting frame 48 to move, the transverse mounting frame 48 can ensure stability during the movement through the contact between the inner walls of the circular holes 49 and the long rods 52. Four groups of pads 53 are fixed on the inner wall of the lifting frame 23. The four groups of pads 53 are located directly above the hydraulic cylinder 25 and the pads 53 are made of rubber material so as to buffer the inner walls of the hydraulic cylinder 25 and the top end of the lifting frame 23 to ensure that when the hydraulic cylinder 25 moves upward to the maximum height, the top end of the hydraulic cylinder 25 will not abut against the inner wall of the lifting frame 23. The bottom end portion of the pad 53 is designed in an arc shape so as to increase the contact area with the surface of the hydraulic cylinder 25, so that the pad 53 has a better supporting effect on the hydraulic cylinder 25.

[0047] The bottom end of the winch 20 is fixedly connected with a fixed sleeve 60, and the fixed sleeve 60 is sleeved on the outside of the steel wire rope 21. A movable sleeve 61 is sleeved inside the fixed sleeve 60, and the movable sleeve 61 is T-shaped. Four groups of fixed columns 66 are fixedly connected to the inner wall of the fixed sleeve 60, and the fixed column 66 is inserted at the top of the movable sleeve 61. The outer side of the fixed sleeve 60 is rotatably connected with a first connecting rod 62, and the bottom end of the first connecting rod 62 is rotatably connected to a connecting seat 63, and the bottom end of the connecting seat 63 is rotatably connected to the top of a second connecting rod 64, and the bottom end of the second connecting rod 64 is rotatably connected to the top of a sliding sleeve 65, and the sliding sleeve 65 is sleeved on the outside of the steel wire rope 21. Four groups of grooves 68 are opened on the inner wall of the sliding sleeve 65, and a plurality of rotating blocks 67 are rotatably connected to the inner wall of the groove 68, and the rotating blocks 67 are in contact with the steel wire rope 21.

[0048] During operation, the fixed sleeve 60 and the movable sleeve 61 are designed to assist in fixing the wire rope 21 near the top of the winch 20 to prevent the wire rope 21 from shaking too much. The movable sleeve 61 is T-shaped and has four sets of fixing columns 66 inserted at the top. The four sets of fixing columns 66 can improve the connection strength between the fixed sleeve 60 and the movable sleeve 61. The movable sleeve 61 is used to extend the length of the fixed sleeve 60 so as to better assist in fixing the wire rope 21. The bottom end of the fixed sleeve 60 is connected to the first connecting rod 62, the connecting seat 63 and the second The connecting rod 64 is connected with the sliding sleeve 65. The sliding sleeve 65 is used to fix the steel wire rope 21 near the lifting ring 22 to reduce the swing amplitude of the steel wire rope 21 at the lifting ring 22, so that the steel wire rope 21 can remain stable during operation. When the winch 20 reels the steel wire rope 21, the lifting ring 22 can push the sliding sleeve 65 to move upward, and the first connecting rod 62 and the second connecting rod 64 will rotate on the connecting seat 63. A groove 68 is provided on the inner wall of the sliding sleeve 65, and multiple groups of rotating blocks 67 are connected by rotating through the inner wall of the groove 68. To reduce the friction between the sliding sleeve 65 and the steel wire rope 21, the movement of the sliding sleeve 65 is smoother.

[0049] The fixing seat 34 is T-shaped, and an annular groove 46 is formed at the bottom of the fixing seat 34. An annular gasket 45 is fixedly connected inside the annular groove 46. The annular gasket 45 is made of rubber.

[0050] During operation, the fixing seat 34 adopts a T-shaped design so that the second hook 35 can be supported and fixed by the abutment between the fixing seat 34 and the inner wall of the lifting frame 23, ensuring that the second hook 35 will not move downward during the process of lifting goods. An annular groove 46 is opened on the fixing seat 34, and an annular gasket 45 is fixed inside the annular groove 46. The annular gasket 45 made of rubber can buffer the fixing seat 34 and the inner wall of the lifting frame 23 to reduce the wear between the fixing seat 34 and the inner wall of the lifting frame 23, and also increase the friction between the fixing seat 34 and the inner wall of the lifting frame 23, so that the second hook 35 will not be easily offset.

[0051] The top of the lifting frame 23 is fixedly connected with two sets of guide columns 58, and the guide columns 58 are inserted into the top of the connecting frame 59, and the guide columns 58 are located at the front and rear sides of the connecting column 24;

[0052] During operation, two groups of guide posts 58 are inserted on the connecting frame 59. When the connecting frame 59 moves upward, it can be guided by the guide posts 58 to prevent the connecting frame 59 from shaking during the movement.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A boom structure for a construction hoist, comprising a boom body (1), a winch (20) being fixedly connected to the top of the boom body (1), a steel wire rope (21) being wound around the winch (20), a bottom end of the steel wire rope (21) being fixedly connected to a lifting ring (22), a bottom end of the lifting ring (22) being fixedly connected to a connecting column (24), and the connecting column (24) being fixedly connected to the top of a lifting frame (23). Features: A rotating mechanism is provided inside the lifting frame (23), and the rotating mechanism is used to switch between the first lifting hook (30) and the second lifting hook (35); a clamping mechanism is provided at the bottom end of the lifting frame (23), and the clamping mechanism is used to assist in clamping and fixing the fixing seat (34); The rotating mechanism comprises a hydraulic cylinder (25) and a piston rod (26); one side of the hydraulic cylinder (25) and the piston rod (26) are both fixedly connected to a first connecting block (27); the first connecting block (27) is rotatably connected to a rotating arm (28); a position of the rotating arm (28) near the middle is rotatably connected to a second connecting block (31); the second connecting block (31) is fixedly connected to left and right sides of the lifting frame (23); a first hook (30) is fixedly connected to the bottom end of the rotating arm (28); a position of the rotating arm (28) near the first connecting block (27) is rotatably connected to the second connecting block (31); the second connecting block (31) is fixedly connected to the left and right sides of the lifting frame (23); a first hook (30) is fixedly connected to the bottom end of the rotating arm (28); A fixing rod (32) is fixedly connected, the bottom end of the fixing rod (32) is rotatably connected to the connecting rod (33), the bottom end of the connecting rod (33) is rotatably connected to the top end of a fixing seat (34), the fixing seat (34) is inserted into the bottom end of the lifting frame (23), the bottom end of the fixing seat (34) is fixedly connected to a second hook (35), the front and rear sides of the fixing seat (34) are fixedly connected to the bottom end of the connecting frame (59), the top end of the connecting frame (59) passes through the top end of the lifting frame (23), and the top end of the connecting frame (59) is fixedly connected to a fixing ring (57); The clamping mechanism comprises a third connecting block (36), the third connecting block (36) being fixedly connected to the bottom end of the fixing rod (32), the bottom end of the third connecting block (36) being rotatably connected to the top rod (37), the outer side of the top rod (37) being sleeved with a rectangular sleeve (44), the rectangular sleeve (44) being fixedly connected to the bottom end of the inner wall of the lifting frame (23), the bottom end of the top rod (37) being trapezoidal in design, the bottom end of the top rod (37) being in abutment with the abutment block (38), the abutment block (38) being away from the top rod One side of the plug rod (37) is fixedly connected to the plug rod (42), the plug rod (42) is inserted into the fixed block (39), the fixed block (39) is fixedly connected to the bottom end of the lifting frame (23), the side of the plug rod (42) away from the fixed block (39) is fixedly connected to a clamping ring (41), the inner side of the clamping ring (41) is in contact with the fixed seat (34), the outer side of the plug rod (42) is sleeved with a spring (43), and the two sides of the spring (43) are respectively fixedly connected to the clamping ring (41) and the fixed block (39); The rotating arm (28) is provided with a support assembly, the support assembly comprising a fixing frame (47), the fixing frame (47) being fixedly connected to the front and rear sides of the rotating arm (28), the bottom end of the fixing frame (47) being in contact with a transverse mounting frame (48), and the transverse mounting frame (48) being fixedly connected to the left and right sides of the connecting frame (59); The bottom end of the winch (20) is fixedly connected to a fixed sleeve (60), the fixed sleeve (60) is sleeved on the outside of the steel wire rope (21), a movable sleeve (61) is sleeved inside the fixed sleeve (60), the movable sleeve (61) is T-shaped, the inner wall of the fixed sleeve (60) is fixedly connected to four groups of fixed columns (66), the fixed columns (66) are inserted into the top of the movable sleeve (61), the outer side of the fixed sleeve (60) is rotatably connected to a first connecting rod (62), the first connecting rod (62) is connected to the outer side of the fixed sleeve (60), and the first connecting rod (62) is connected to the outer side of the fixed sleeve (60). The bottom end of the rod (62) is rotatably connected to the connecting seat (63), the bottom end of the connecting seat (63) is rotatably connected to the top end of the second connecting rod (64), the bottom end of the second connecting rod (64) is rotatably connected to the top end of the sliding sleeve (65), the sliding sleeve (65) is sleeved on the outside of the steel wire rope (21), the inner wall of the sliding sleeve (65) is provided with four groups of grooves (68), the inner wall of the grooves (68) is rotatably connected to multiple groups of rotating blocks (67), and the rotating blocks (67) are in contact with the steel wire rope (21).

2. The suspension rod structure of a construction hoist according to claim 1, Features: The front and rear sides of the hydraulic cylinder barrel (25) are fixedly connected with protrusions (55), the protrusions (55) are provided with two groups of slots (56), the insides of the slots (56) are slidably connected with a clamping block (54), and the clamping block (54) is fixedly connected to the connecting frame (59).

3. The suspension rod structure of a construction hoist according to claim 2, Features: A sliding block (50) is fixedly connected to one side of the connecting frame (59) away from the clamping block (54). The sliding block (50) is slidably connected inside a sliding groove (51). The sliding groove (51) is provided on both the front and rear sides of the inner wall of the lifting frame (23).

4. The suspension rod structure of a construction hoist according to claim 1, Features: The transverse mounting frame (48) is provided with a plurality of groups of circular holes (49), a long rod (52) is inserted into the circular hole (49), the top end of the long rod (52) is fixedly connected to the inner wall of the lifting frame (23), the top end of the inner wall of the lifting frame (23) is fixedly connected to four groups of cushion blocks (53), the bottom end of the cushion block (53) is designed to be arc-shaped.

5. The suspension rod structure of a construction hoist according to claim 1, Features: The fixing seat (34) is T-shaped, and an annular groove (46) is provided at the bottom end of the fixing seat (34). An annular gasket (45) is fixedly connected inside the annular groove (46), and the annular gasket (45) is made of rubber.

6. The suspension rod structure of a construction hoist according to claim 4, Features: Two groups of guide columns (58) are fixedly connected to the top of the lifting frame (23). The guide columns (58) are inserted into the top of the connecting frame (59). The guide columns (58) are located at the front and rear sides of the connecting column (24).

Images