Adjustable lifting hook group

Abstract

The invention relates to the field of crane hoisting, in particular to an adjustable lifting hook group. The top frame and the adjusting table are connected in series through a lifting rope, the lifting hook assembly is detachably connected with the lifting rope, and the top frame and the adjusting table form an adjustable two-section type structure. The top frame is connected with a hoisting end of a crane; a winding piece for controlling the length of the lifting rope is arranged on the top frame; the adjusting table is connected below the top frame and comprises an adjusting cylinder connected with the top frame; the chassis is positioned at the bottom of the adjusting cylinder; a plurality of groups of adjusting pieces are arranged along the periphery of the chassis for the lifting ropes to penetrate through in one-to-one correspondence; the lifting hook assemblies are detachably connected to the bottoms of the lifting ropes in a one-to-one correspondence mode. The two groups of hoisting pieces I rotate reversely; the second hoisting pieces synchronously ascend and descend between the two first hoisting pieces. According to the invention, through the combination of the lifting hooks in various forms, the lifting mode, position and height are adjusted, so that the lifting requirements of transportation pieces in different forms are met, and the lifting convenience, flexibility and practicability of the crane are improved.

Description

Technical Field

[0001] The invention relates to the field of crane hoisting, and in particular to an adjustable hook assembly. Background Art

[0002] A container hook is a device specially used for lifting containers. It is usually installed on cranes, hoists, excavators and other machinery to lift containers off the ground and transport them to the destination. There are many types of container hooks. Different types of hooks can be selected according to different uses and machinery. Common container hooks include:

[0003] Ordinary lifting hook: generally used for lifting single containers or light containers.

[0004] Claw-type lifting hook: can be interlocked with the angle steel of the container to increase the stability of the lifting.

[0005] Rotating lifting hook: It can rotate 360 ​​degrees to facilitate the position adjustment of the container. Some rotating hooks can also be used in combination with hydraulic telescopic spreaders with adjustable center of gravity, connected by a pin shaft. After removing the pin shaft, the rotating hook can be used to load and unload bulk cargo.

[0006] Elastic lifting hook: The elasticity of the hook can be adjusted according to the weight of the container to prevent the container from being damaged during lifting.

[0007] Curved lifting hook: The curvature of the hook can be adjusted according to different lifting angles to facilitate lifting.

[0008] A Chinese patent document with authorization announcement number CN204689376U discloses an adjustable hook group, which includes a pulley, the lower part of the pulley is connected to a connecting seat through a connecting shaft, the lower end of the connecting seat is connected to a crossbeam, the crossbeam is an "I"-shaped structure, and anti-collision blocks are provided at the ends of the crossbeam. The anti-collision blocks are rubber anti-collision blocks, and the left and right parts of the crossbeam are provided with left-right symmetrical lifting devices. The lifting device is composed of a lifting seat and a lifting hook connected to the lifting seat through a pin shaft, and the upper part of the lifting seat is respectively connected to front and rear symmetrical driven wheels and a driving wheel matched with the driven wheels, and the driving wheel is connected to a motor.

[0009] A Chinese patent document with authorization announcement number CN221343574U discloses a convenient auxiliary lifting tool for a damaged container, including a hook assembly and a retractable locking mechanism, wherein the hook assembly includes a hook, a load-bearing chain and a shackle connected in sequence from bottom to top, and the shackle is connected to the hanging ear on the end beam of the container spreader; the two ends of the retractable locking mechanism are respectively detachably connected to the hooks of two sets of hook assemblies; when the hook assembly is used, the two sets of hook assemblies are detached from the retractable locking mechanism and are respectively suspended at the two ends of the end beam; when the hook assembly is not in use, the retractable locking mechanism retracts the two sets of hook assemblies and locks them to the end beam of the container spreader.

[0010] The above-mentioned lifting structures all have the following shortcomings: the lifting structure is fixed, the adjustability is not strong, the lifting position is single, and it cannot be adjusted accordingly according to the size of the lifting object, which leads to limitations in lifting. Different types of hooks need to be replaced to meet the lifting requirements of different transport parts, which ultimately leads to insufficient convenience, flexibility and practicality of crane lifting. Summary of the invention

[0011] In view of the problems existing in the background technology, an adjustable hook group is proposed. The present invention adjusts the lifting mode, position and height through a combination of various forms of hooks to meet the lifting requirements of different forms of transport parts, thereby improving the convenience, flexibility and practicality of crane lifting.

[0012] The present invention proposes an adjustable hook group, including a top frame and an adjustment platform connected in series by a lifting rope, and a hook component detachably connected to the lifting rope, the four forming an adjustable two-section structure; the top frame is connected to the lifting end of the crane; a reel for controlling the length of the lifting rope is arranged on the top frame; the adjustment platform is connected below the top frame, including an adjustment cylinder connected to the top frame; a chassis is located at the bottom of the adjustment cylinder; a plurality of adjustment components are arranged along the outer circumference of the chassis for the lifting ropes to pass through one by one, and the adjustment components adjust the movement of the lifting ropes to adjust the lifting position through rotation and extension, and form a claw-shaped lifting structure for gripping and lifting on the other hand; the hook components are connected to the bottom of the lifting ropes in a one-to-one and detachable manner; two groups of lifting components one are driven to rotate in opposite directions by a driving component; and a lifting component two is driven to rise and fall synchronously between the two groups of lifting components one by a driving component.

[0013] Preferably, the top frame includes a frame body; a plurality of groups of winding pieces are dispersedly arranged at the bottom of the frame body; after the hanging ropes are positioned by positioning rollers, they are wound around the winding pieces one by one.

[0014] Preferably, the adjustment cylinder comprises a cylinder body connected to the frame body through a connecting frame; the cylinder body is hollow, and is provided with a rope inlet hole for the lifting rope to pass through and a rope outlet hole for the lifting rope to pass through, and the bottom is connected to the chassis through a base.

[0015] Preferably, the adjusting member comprises a through-tube rotatably arranged on the chassis; the extension sleeve moves at the rope outlet end of the through-tube; the suspension rope passes through the through-tube and the extension sleeve, and bends synchronously with the rotation of the two.

[0016] Preferably, the outer periphery of the chassis is provided with grooves for one-to-one installation of the adjusting members; and corresponding level detectors are provided around the grooves.

[0017] Preferably, the hook assembly includes a hanger detachably connected to a hanger rope; the first hanging component includes a rotating shaft rotatably arranged on the hanger and a hook body located on the outer periphery of the rotating shaft, and the two constitute a G-shaped structure.

[0018] Preferably, a slot is provided on the arc outer wall of the hook body; the driving member includes a rotating screw; the driving seat is threadedly connected to the screw to achieve up and down movement and is located between the two groups of hook bodies; the racks are provided on both sides of the driving seat and cooperate with the slots on the corresponding sides.

[0019] Preferably, the second hoisting component comprises a hoisting frame connected to the base of the driving seat; the hoisting frame is a horizontally placed U-shaped structure, and the inner wall is provided with a clamping airbag whose inflation and deflation are controlled by an air pump.

[0020] Preferably, a locking block is also provided on the hanger; the locking block comprises a block body; the block body is provided with a first positioning groove for positioning the bent section of the hook body, and a second positioning groove for positioning the arc-shaped end of the hook body.

[0021] Preferably, a mounting head is provided at the bottom of the lifting rope; a mounting tube is provided at the top of the lifting frame; when a hook body or a lifting frame is needed, the mounting head is inserted into the mounting tube and then fixed by bolts and nuts.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects: the top frame, the adjustment platform and the hook assembly are connected in sequence by the lifting rope, and the four form an adjustable two-stage structure. The upper structure rotates and retracts through the adjusting part. On the one hand, it drives the lifting rope to bend in the specified direction and adjusts the movement of the lifting rope so that the lifting position of the corresponding hook assembly matches the size of the transport part. On the other hand, after being separated from the lower section, it can form a claw-shaped lifting structure for separate grasping and lifting. The two groups of lifting parts in the lower structure adjust the closure of the lifting opening by rotating in the opposite direction, thereby improving the safety of lifting. The second lifting part is raised and lowered synchronously to engage and lift the plate. Through various forms of hook combinations, the lifting method, position and height can be adjusted to meet the lifting requirements of different forms of transport parts, thereby improving the convenience, flexibility and practicality of crane lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the adjustable hook assembly in the present invention (viewing angle 1);

[0024] Figure 2Schematic diagram of the structure of the adjustable hook assembly in the present invention (viewing angle 2);

[0025] Figure 3 It is a schematic diagram of the top frame structure in the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the adjustment platform in the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the regulating cylinder in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the adjusting member in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the hook assembly in the present invention;

[0030] Figure 8 It is a schematic diagram of the internal structure of the hook assembly in the present invention;

[0031] Fig. 9 It is a schematic diagram of the hook body structure in the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the driving member in the present invention;

[0033] Fig.11 It is a schematic diagram of the locking block structure in the present invention;

[0034] Fig.12 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0035] Reference numerals: 1, top frame; 101, frame body; 102, winding piece; 103, connecting frame; 104, positioning roller; 2, adjustment platform; 201, adjustment piece; 20101, through-tube; 20102, extension sleeve; 20103, cylinder 1; 20104, clamping strip; 20105, pressure sensor; 202, chassis; 203, adjustment tube; 20301, base; 20302, cylinder body; 20303, rope outlet hole; 20304, rope inlet hole; 204, level detector; 205, groove; 206, Mounting head; 3. Hook assembly; 301. Hanger; 302. Lifting part one; 30201. Rotating shaft; 30202. Hook body; 30203. Slot; 303. Driving part; 30301. Driving seat; 30302. Rack; 30303. Screw; 30304. Motor two; 304. Locking block; 30401. Block; 30402. Positioning slot one; 30403. Positioning slot two; 305. Mounting tube; 306. Lifting part two; 30601. Lifting frame; 30602. Clamping airbag; 4. Lifting rope. DETAILED DESCRIPTION

[0036] Embodiment 1

[0037] like Figure 1-Figure 2 and Figure 4 As shown, an adjustable hook group proposed by the present invention includes a top frame 1 and an adjustment platform 2 connected in series by a lifting rope 4, and a hook assembly 3 detachably connected to the lifting rope 4, the four forming an adjustable two-stage structure; the top frame 1 is connected to the lifting end of the crane; a reel 102 for controlling the length of the lifting rope 4 is arranged on the top frame 1; the adjustment platform 2 is connected below the top frame 1, including an adjustment cylinder 203 connected to the top frame 1; the chassis 202 is located at the bottom of the adjustment cylinder 203; multiple groups of adjustment members 201 are arranged along the outer periphery of the chassis 202 for the lifting rope 4 to pass through one by one, and the adjustment members 201 adjust the movement of the lifting rope 4 on the one hand to adjust the lifting position by rotating and retracting, and on the other hand form a claw-shaped lifting structure for grasping and lifting; the hook assembly 3 is connected to the bottom of the lifting rope 4 in a one-to-one and detachable manner; the two groups of lifting members 1 302 are driven to rotate in opposite directions by the driving member 303; the lifting member 2 306 is driven by the driving member 303 to rise and fall synchronously between the two groups of lifting members 1 302.

[0038] like Figure 3 As shown, the top frame 1 includes a frame body 101 with a hook; a plurality of groups of winding and collecting pieces 102 are dispersedly arranged at the bottom of the frame body 101; after the hanging ropes 4 are positioned by the positioning rollers 104, they are wound around the winding and collecting pieces 102 one by one.

[0039] It should be further explained that the reeling member 102 is composed of a reeling motor and a reeling roller, which reels the sling ropes 4 one by one, and maintains the balance of the hoisted objects by adjusting the length of the sling ropes 4.

[0040] like Figure 5 As shown, the adjustment cylinder 203 includes a cylinder body 20302 connected to the frame body 101 through the connecting frame 103; the cylinder body 20302 is hollow, and is provided with a rope inlet hole 20304 for the suspension rope 4 to pass through and a rope outlet hole 20303 for the suspension rope 4 to pass through, and the bottom is connected to the chassis 202 through the base 20301.

[0041] It should be further explained that a plurality of channels corresponding to the suspension ropes 4 are arranged in the cylinder 20302 for the suspension ropes 4 to pass through so as to position the suspension ropes 4, thereby reducing the entanglement of the suspension ropes 4 and facilitating subsequent adjustments.

[0042] like Figure 6 As shown, the adjusting member 201 includes a through-tube 20101 rotatably arranged on the chassis 202; the through-tube 20101 is driven to rotate by a motor 1; the extension sleeve 20102 is driven by a cylinder 1 20103 and moves at the rope outlet end of the through-tube 20101.

[0043] The lifting rope 4 passes through the through-tube 20101 and the extension sleeve 20102, and bends synchronously with the rotation of the two. For example, in a two-stage structure, the rotation of the through-tube 20101 and the extension sleeve 20102 can drive the lifting rope 4 to bend synchronously, adjust the distance between multiple sets of hook assemblies 3, and then change the lifting position. When the hook assembly 3 is removed, the rotation of the through-tube 20101 and the extension sleeve 20102 can form a claw-shaped lifting structure to grasp and lift some transport objects with characteristic shapes.

[0044] It should be further explained that a circle of clamping strips 20104 for limiting the position of the sling 4 is arranged on the inner wall of the extension sleeve 20102, and a circle of pressure sensors 20105 is arranged on the outer wall.

[0045] like Figure 4 As shown, the outer periphery of the chassis 202 is provided with grooves 205 for the adjustment members 201 to be installed one by one; and the surroundings of the grooves 205 are provided with corresponding level detectors 204 .

[0046] During the hoisting process, the length of the hoisting rope 4 at different positions is adjusted in combination with the detection result of the level detector 204, and the angle and length of the adjusting member 201 at different positions are adjusted to maintain the level of the transported object.

[0047] like Figure 7-Figure 9 As shown, the hook assembly 3 includes a hanger 301 detachably connected to a lifting rope 4; the lifting component 302 includes a rotating shaft 30201 rotatably set on the hanger 301 and a hook body 30202 located on the outer periphery of the rotating shaft 30201, and the two constitute a G-shaped structure; during lifting, the opening and closing of the lifting space can be adjusted by rotating the G-shaped structure to improve the safety of lifting.

[0048] like Fig.10 As shown, a slot 30203 is provided on the arc outer wall of the hook body 30202; the driving member 303 includes a rotating lead screw 30303. The driving seat 30301 is threadedly connected with the lead screw 30303 to achieve up and down movement, and is located between the two groups of hook bodies 30202; the rack 30302 is provided on both sides of the driving seat 30301, and cooperates with the slot 30203 on the corresponding side.

[0049] The motor 2 30304 drives the lead screw 30303 to rotate, and the drive seat 30301 moves up and down. When the drive seat 30301 moves up, the lifting opening increases, and the hanging end of the container can be inserted. Then the drive seat 30301 moves down, and the lifting opening decreases, so that the hanging end can be prevented from falling.

[0050] like Fig.10 As shown, the second hoisting component 306 includes a hoisting frame 30601 connected to the base of the driving seat 30301; the hoisting frame 30601 is a horizontally placed U-shaped structure, and the inner wall is provided with a clamping airbag 30602 whose inflation and deflation are controlled by an air pump.

[0051] The U-shaped hoisting frame 30601 can be used to position the plate-shaped transport object. When the driving seat 30301 moves down, the hoisting opening is small, and the hoisting frame 30601 extends, the plate-shaped transport object can be hoisted. In addition, by inflating the clamping airbag 30602, the clamping strength of the plate body can be increased to ensure its stability during transportation.

[0052] like Fig.11 As shown, a locking block 304 is also provided on the hanger 301; the locking block 304 includes a block body 30401; the block body 30401 is provided with a positioning groove 1 30402 for positioning the bending section of the hook body 30202, and a positioning groove 2 30403 for positioning the arc end of the hook body 30202.

[0053] The first positioning groove 30402 cooperates with the tail of the hook body 30202; the second positioning groove 30403 cooperates with the head of the hook body 30202; the hook body 30202 can be positioned by rotating forward and backward.

[0054] like Fig.12 As shown, a mounting head 206 is provided at the bottom of the lifting rope 4; a mounting tube 305 is provided at the top of the hanging frame 30601; when the hook body 30202 or the hanging frame 30601 needs to be used, the mounting head 206 is inserted into the mounting tube 305 and then fixed by bolts and nuts.

[0055] Embodiment 2

[0056] This embodiment provides a dock hoisting method, using the adjustable hook assembly in the first embodiment, and the specific steps are as follows:

[0057] S1, connecting the frame 101 to the hook of the crane;

[0058] S2, by rotating the through tube 20101, the extension sleeve 20102 is extended and retracted, driving the lifting rope 4 to bend synchronously, and adjusting the distance between the multiple hook assemblies 3 so that the hook assemblies 3 match the size of the container;

[0059] S3, the driving seat 30301 moves upward, the rack 30302 cooperates with the corresponding slot 30203, the lifting opening of the hook body 30202 increases, and the hanging end of the container (such as the hanging ear on the container body) can be inserted; then the driving seat 30301 moves downward, the rack 30302 cooperates with the corresponding slot 30203, the lifting opening of the hook body 30202 decreases, and the hanging ear on the container body is surrounded;

[0060] S4. While the driving seat 30301 moves downward, the hoisting frame 30601 extends out and clamps the top edge of the container, and inflates the clamping airbag 30602 to increase the clamping strength of the plate body;

[0061] S5, lifting the container; during the lifting process, combined with the detection results of the level detector 204, the length of the lifting rope 4 in different directions is adjusted, and the angle and length of the adjustment member 201 in different directions are adjusted to maintain the level of the container.

[0062] Embodiment 3

[0063] This embodiment proposes another dock hoisting method, using the adjustable hook assembly in the first embodiment, and the specific steps are as follows:

[0064] S1, connecting the frame 101 to the hook of the crane;

[0065] S2, remove the bolts and nuts to separate the mounting head 206 and the mounting tube 305;

[0066] S3, by rotating the through tube 20101, the extension sleeve 20102 is extended and retracted to form a claw-like structure, shortening the suspension rope 4, so that the installation head 206 is retracted into the extension sleeve 20102;

[0067] S4. The claw-like structure grasps special transport parts (such as broken containers, small equipment) and lifts them.

[0068] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An adjustable hook assembly, characterized in that: It comprises a top frame (1) and an adjustment platform (2) connected in series by a suspension rope (4), and a suspension hook assembly (3) detachably connected to the suspension rope (4), the four forming an adjustable two-section structure; The top frame (1) is connected to the lifting end of the crane; a reel (102) for controlling the length of the lifting rope (4) is arranged on the top frame (1); The adjustment platform (2) is connected to the bottom of the top frame (1), and comprises an adjustment cylinder (203) connected to the top frame (1); the bottom plate (202) is located at the bottom of the adjustment cylinder (203); a plurality of adjustment members (201) are arranged along the outer periphery of the bottom plate (202), for the suspension ropes (4) to pass through one by one; the adjustment members (201) can adjust the movement of the suspension ropes (4) to adjust the suspension position by rotating and extending, and can also form a claw-shaped suspension structure to perform gripping and suspension; The hook assemblies (3) are detachably connected to the bottom of the lifting rope (4) in a one-to-one manner; the two sets of lifting parts (302) are driven to rotate in opposite directions by the driving part (303); and the lifting part (306) is driven to rise and fall synchronously between the two sets of lifting parts (302) by the driving part (303).

2. The adjustable hook assembly according to claim 1, characterized in that: The top frame (1) comprises a frame body (101); a plurality of groups of winding and collecting pieces (102) are dispersedly arranged at the bottom of the frame body (101); after being positioned by a positioning roller (104), the hanging ropes (4) are wound around the winding and collecting pieces (102) one by one.

3. The adjustable hook assembly according to claim 2, characterized in that: The regulating cylinder (203) comprises a cylinder body (20302) connected to the frame body (101) via a connecting frame (103); The cylinder (20302) is hollow and is provided with a rope entry hole (20304) for the suspension rope (4) to pass through and a rope exit hole (20303) for the suspension rope (4) to pass through. The bottom is connected to the chassis (202) through the base (20301).

4. The adjustable hook assembly according to claim 1, characterized in that: The adjusting member (201) comprises a through-tube (20101) rotatably arranged on the chassis (202); The extension sleeve (20102) moves at the rope outlet end of the penetration tube (20101); The suspension rope (4) passes through the through tube (20101) and the extension sleeve (20102), and bends synchronously with the rotation of the two.

5. The adjustable hook assembly according to claim 4, characterized in that: The outer periphery of the chassis (202) is provided with grooves (205) for the adjustment members (201) to be installed one by one; and the surroundings of the grooves (205) are provided with corresponding level detectors (204).

6. The adjustable hook assembly according to claim 1, characterized in that: The hook assembly (3) comprises a hanger (301) detachably connected to a hanging rope (4); The first hanging component (302) includes a rotating shaft (30201) rotatably arranged on the hanging bracket (301) and a hook body (30202) located on the outer periphery of the rotating shaft (30201), and the two constitute a G-shaped structure.

7. The adjustable hook assembly according to claim 6, characterized in that: A slot (30203) is provided on the arc outer wall of the hook body (30202); the driving member (303) includes a rotating lead screw (30303); the driving seat (30301) is threadedly connected with the lead screw (30303) to achieve up and down movement, and is located between the two groups of hook bodies (30202); the racks (30302) are provided on both sides of the driving seat (30301) and cooperate with the slots (30203) on the corresponding sides.

8. The adjustable hook assembly according to claim 7, characterized in that: The second hanging component (306) includes a hanging frame (30601) connected to the base of the driving seat (30301); The hanging frame (30601) is a horizontally placed U-shaped structure, and the inner wall is provided with a clamping air bag (30602) whose inflation and deflation are controlled by an air pump.

9. The adjustable hook assembly according to claim 6, characterized in that: A locking block (304) is also provided on the hanger (301); the locking block (304) comprises a block body (30401); the block body (30401) is provided with a first positioning groove (30402) for positioning the bent section of the hook body (30202), and is also provided with a second positioning groove (30403) for positioning the arc-shaped end of the hook body (30202).

10. The adjustable hook assembly according to claim 8, characterized in that: A mounting head (206) is arranged at the bottom of the hanging rope (4); a mounting tube (305) is arranged at the top of the hanging frame (30601); When the hook body (30202) or the hanging frame (30601) is needed, the mounting head (206) is inserted into the mounting tube (305) and then fixed by bolts and nuts.

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