Adjustable hook assembly

Abstract

The present invention relates to the field of crane hoisting, and in particular to an adjustable hook assembly. It includes a top frame and an adjustment platform connected in series by a hoisting rope, and a hook assembly detachably connected to the hoisting rope, the four forming an adjustable two-section structure; the top frame is connected to the hoisting end of the crane; a reel for controlling the length of the hoisting rope is provided on the top frame; the adjustment platform is connected below the top frame, and includes an adjustment cylinder connected to the top frame; the chassis is located at the bottom of the adjustment cylinder; multiple groups of adjustment members are provided along the outer circumference of the chassis for the hoisting rope to pass through in a one-to-one correspondence; the hook assembly is detachably connected to the bottom of the hoisting rope in a one-to-one correspondence; the two groups of hoisting members rotate in opposite directions; the hoisting member is synchronously raised and lowered between the two groups of hoisting members. The present invention adjusts the lifting method, position and height through a combination of hooks in various forms, meets the lifting requirements of different forms of transport parts, and improves the convenience, flexibility and practicality of crane hoisting.

Description

Technical Field

[0001] The present 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 specifically used for lifting containers. It is usually installed on machinery such as cranes, hoists, and excavators to lift the container off the ground and transport it to its destination. There are many types of container hooks, and 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 hook: This hook can rotate 360 ​​degrees, making it easier to adjust the container's position. Some swivel hooks can also be used in combination with hydraulic telescopic spreaders with adjustable center of gravity. The hooks are connected by a pin. After removing the pin, the 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 the lifting process.

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

[0008] The 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, the end of the crossbeam is provided with anti-collision blocks, the anti-collision blocks are rubber anti-collision blocks, 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 by a pin shaft, the upper part of the lifting seat is respectively connected to front and rear symmetrical driven wheels and a driving wheel cooperating with the driven wheel, 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. 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 in use, the two sets of hook assemblies are detached from the retractable locking mechanism and respectively hang 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 response to 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 assembly 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 to the bottom of the top frame, including an adjustment cylinder connected to the top frame; the chassis is located at the bottom of the adjustment cylinder; multiple groups of adjustment parts are arranged along the outer periphery of the chassis for the lifting rope to pass through one by one, and the adjustment parts adjust the direction of the lifting rope to adjust the lifting position through rotation and extension, and form a claw-shaped lifting structure for gripping and lifting; the hook assemblies are connected to the bottom of the lifting rope in a one-to-one and detachable manner; the two groups of lifting parts are driven to rotate in opposite directions by a driving part; and the lifting part two is driven by the driving part to rise and fall synchronously between the two groups of lifting parts one.

[0013] Preferably, the top frame includes a frame body; multiple groups of roll-up 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 roll-up pieces one by one.

[0014] Preferably, the adjustment cylinder includes 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 includes 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 the adjustment members to be installed in a one-to-one correspondence; and corresponding level detectors are provided around the grooves.

[0017] Preferably, the hook assembly includes a hanger detachably connected to a hanging 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 includes a hoisting frame connected to the base of the driving seat; the hoisting frame is a horizontal 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 further 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 or a lifting frame is required, the mounting head is inserted into the mounting tube and then fixed with 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 a lifting rope, and the four form an adjustable two-section structure. The upper section structure rotates and retracts through the adjusting part, on the one hand, driving the lifting rope to bend in the specified direction, adjusting the direction 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 gripping and lifting. The two sets of lifting parts in the lower section structure adjust the closure of the lifting opening by rotating in opposite directions, thereby improving the safety of the lifting. The second lifting part rises and falls 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 of the present invention (viewing angle 1);

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

[0025] Figure 3 Schematic diagram of the top frame structure in the present invention;

[0026] Figure 4 Schematic diagram of the structure of the adjustment platform in the present invention;

[0027] Figure 5 Schematic diagram of the structure of the regulating cylinder in the present invention;

[0028] Figure 6 Schematic diagram of the structure of the adjusting member in the present invention;

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

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

[0031] Figure 9 Schematic diagram of the hook structure of the present invention;

[0032] Figure 10 Schematic diagram of the driving member structure in the present invention;

[0033] Figure 11 This is a schematic diagram of the locking block structure in the present invention;

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

[0035] Reference numerals: 1, top frame; 101, frame body; 102, reeling member; 103, connecting frame; 104, positioning roller; 2, adjustment platform; 201, adjustment member; 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, 1. Mounting head; 3. Hook assembly; 301. Hanger; 302. Lifting part 1; 30201. Rotating shaft; 30202. Hook body; 30203. Slot; 303. Driving part; 30301. Driving seat; 30302. Rack; 30303. Screw; 30304. Motor 2; 304. Locking block; 30401. Block; 30402. Positioning slot 1; 30403. Positioning slot 2; 305. Mounting tube; 306. Lifting part 2; 30601. Lifting frame; 30602. Clamping airbag; 4. Lifting rope. DETAILED DESCRIPTION

[0036] Example 1

[0037] like Figure 1-Figure 2 and Figure 4 As shown, the present invention proposes an adjustable hook group, including 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-section structure; the top frame 1 is connected to the lifting end of the crane; the reel-in 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 includes 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 direction of the lifting rope 4 to adjust the lifting position by rotating and extending, and form a claw-shaped lifting structure for gripping 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 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 302.

[0038] like Figure 3 As shown, the top frame 1 includes a frame body 101 with a hook; multiple groups of rolling 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 rolling 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 lifting ropes 4 one by one and maintains the balance of the hoisted objects by adjusting the length of the lifting ropes 4.

[0040] like Figure 5 As shown, the adjustment cylinder 203 includes a cylinder 20302 connected to the frame body 101 through the connecting frame 103; the cylinder 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 sling ropes 4 are provided in the cylinder 20302 for the sling ropes 4 to pass through so as to position the sling ropes 4, thereby reducing the entanglement of the sling 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 their rotation. For example, in a two-stage structure, the rotation of the through-tube 20101 and the extension sleeve 20102 can cause the lifting rope 4 to bend synchronously, adjusting the distance between the multiple sets of hook assemblies 3 and, consequently, changing the lifting position. When the hook assemblies 3 are removed, the through-tube 20101 and the extension sleeve 20102 rotate to form a claw-like lifting structure, enabling the gripping and lifting of certain unique transport objects.

[0044] It should be further explained that a circle of clamping strips 20104 for limiting the position of the sling 4 is provided on the inner wall of the extension sleeve 20102, and a circle of pressure sensors 20105 is provided 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 in a one-to-one correspondence; and the corresponding level detectors 204 are provided around the grooves 205 .

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

[0047] like Figure 7-Figure 9 As shown, the hook assembly 3 includes a hanger 301 that is detachably connected to the lifting rope 4; the lifting part 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 Figure 10 As shown, the hook body 30202 has a slot 30203 formed on its arc-shaped outer wall. The driving member 303 includes a rotating screw 30303. The driving seat 30301 is threadedly connected to the screw 30303 to achieve vertical movement and is located between the two sets of hook bodies 30202. The racks 30302 are provided on both sides of the driving seat 30301 and engage with the slots 30203 on the corresponding sides.

[0049] Motor 2 30304 drives lead screw 30303 to rotate, causing drive base 30301 to move up and down. As drive base 30301 moves up, the lifting opening increases, allowing the container's hanging end to fit in. Then, as drive base 30301 moves down, the lifting opening decreases, preventing the hanging end from falling.

[0050] like Figure 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 horizontal 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 lifting frame 30601 can be used to position plate-like objects for transport. When the drive base 30301 moves downward, the lifting opening becomes smaller, and the lifting frame 30601 extends, allowing the plate-like object to be lifted. Furthermore, inflating the clamping airbag 30602 increases the clamping strength of the plate, ensuring its stability during transport.

[0052] like Figure 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 bent section of the hook body 30202, and a positioning groove 2 30403 for positioning the arcuate 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 Figure 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 with bolts and nuts.

[0055] Example 2

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

[0057] S1. Connect 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 drive seat 30301 moves upward, and the rack 30302 engages with the corresponding slot 30203. The lifting opening of the hook body 30202 increases, allowing it to engage with the hanging end of the container (for example, the hanging ear on the container body). Then, the drive seat 30301 moves downward, and the rack 30302 engages with the corresponding slot 30203. The lifting opening of the hook body 30202 decreases, enclosing the hanging ear on the container body.

[0060] S4. As the driving seat 30301 moves downward, the hoisting frame 30601 extends and clamps the top edge of the container. The clamping airbag 30602 is inflated to increase the clamping strength of the plate.

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

[0062] Example 3

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

[0064] S1. Connect 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 cylinder 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 sling rope 4, so that the installation head 206 is retracted into the extension sleeve 20102;

[0067] S4. The claw-like structure grasps special transport items (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. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit 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 adjusting platform (2) is connected to the bottom of the top frame (1), and includes an adjusting cylinder (203) connected to the top frame (1); the bottom plate (202) is located at the bottom of the adjusting cylinder (203); a plurality of adjusting members (201) are provided along the outer periphery of the bottom plate (202), for the lifting ropes (4) to pass through in a one-to-one correspondence; the adjusting members (201) adjust the direction of the lifting ropes (4) to adjust the lifting position by rotating and extending, and form a claw-shaped lifting structure to perform gripping and lifting; The hook components (3) are detachably connected to the bottom of the lifting rope (4) in a one-to-one correspondence; the two sets of lifting components (302) are driven to rotate in opposite directions by the driving component (303); the lifting component (306) is driven to rise and fall synchronously between the two sets of lifting components (302) by the driving component (303); The adjusting member (201) includes a through-tube (20101) rotatably arranged on a chassis (202); an extension sleeve (20102) moves at the rope outlet end of the through-tube (20101); a suspension rope (4) passes through the through-tube (20101) and the extension sleeve (20102) and bends synchronously with the rotation of the two. The hook assembly (3) includes a hanger (301) detachably connected to a hanging rope (4); the first hanging component (302) includes a rotating shaft (30201) rotatably arranged on the hanger (301) and a hook body (30202) located on the periphery of the rotating shaft (30201), and the two constitute a G-shaped structure; A slot (30203) is provided on the arc outer wall of the hook body (30202); the driving member (303) includes a rotating screw (30303); the driving seat (30301) is threadedly connected to the screw (30303) to achieve up and down movement and is located between the two sets 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; 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 horizontal 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.

2. The adjustable hook assembly according to claim 1, characterized in that: The top frame (1) includes a frame body (101); a plurality of groups of roll-up pieces (102) are dispersedly arranged at the bottom of the frame body (101); and the hanging ropes (4) are positioned by positioning rollers (104) and then wound around the roll-up pieces (102) in a one-to-one correspondence.

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 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. 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 outer periphery of the chassis (202) is provided with grooves (205) for the adjustment members (201) to be installed in a one-to-one correspondence; and corresponding level detectors (204) are provided around the grooves (205).

5. The adjustable hook assembly according to claim 1, characterized in that: 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 first positioning groove (30402) for positioning the bent section of the hook body (30202), and a second positioning groove (30403) for positioning the arc-shaped end of the hook body (30202).

6. The adjustable hook assembly according to claim 1, characterized in that: 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 lifting 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.

Images