A crane hook

Abstract

The present application relates to a crane hook, and relates to the field of cranes, including a main hook, and also including a support plate fixedly connected to the crane, a surface of the support plate is provided with a first mounting hole and a second mounting hole, an end of the main hook close to the support plate is fixedly connected to a mounting frame, the mounting frame includes a first rod segment plugged into the first mounting hole, an end of the first rod segment away from the main hook is fixedly connected to a second rod segment, the second rod segment is overlapped on the surface of the support plate away from the main hook, an end of the second rod segment away from the first rod segment is fixedly connected to a third rod segment plugged into the second mounting hole, and the distance between the farthest surfaces of the first rod segment and the third rod segment is less than or equal to the length of the first mounting hole. The present application has the effect of saving time and effort in completing the disassembly of the hook.

Description

Technical Field

[0001] The present application relates to the field of cranes, and in particular to a crane hook. Background Art

[0002] Workshop cranes are generally bridge cranes, which are lifting equipment that are horizontally mounted above workshops, warehouses and material yards to lift materials. Its two ends are located on tall concrete columns or metal brackets, shaped like a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, making full use of the space under the bridge to lift materials without being hindered by ground equipment.

[0003] In order to lift materials of different sizes, it is usually necessary to replace the hooks of different sizes on the crane. Because a single bolt and nut is difficult to fix the hook and the crane together, the hook in the related art is usually fastened to the crane by multiple bolts and nuts.

[0004] Since the hook is fastened to the crane by multiple bolts and nuts, multiple pairs of bolts and nuts need to be rotated during the process of disassembling the hook, which is time-consuming and laborious. Summary of the invention

[0005] In order to complete the disassembly of the hook in a more time-saving and labor-saving manner, the present application provides a crane hook.

[0006] The present application provides a crane hook adopting the following technical solution:

[0007] A crane hook comprises a main hook and a support plate fixedly connected to the crane, a surface of the support plate being provided with a first mounting hole and a second mounting hole, an end of the main hook close to the support plate being fixedly connected to a mounting frame, the mounting frame comprising a first rod segment plugged into the first mounting hole, an end of the first rod segment away from the main hook being fixedly connected to a second rod segment, the second rod segment being overlapped on a surface of the support plate away from the main hook, an end of the second rod segment away from the first rod segment being fixedly connected to a third rod segment plugged into the second mounting hole, and a distance between the farthest surfaces of the first rod segment and the third rod segment being less than or equal to a length of the first mounting hole.

[0008] By adopting the above technical solution, when the main hook needs to be replaced, the mounting frame is moved to the side of the support plate away from the main hook, and the mounting frame moves upward so that the third rod segment gradually disengages from the second mounting hole. When the third rod segment disengages from the second mounting hole, the mounting frame is rotated until the third rod segment is away from the second mounting hole, and the mounting frame is aligned with the first mounting hole. Then, the mounting frame is moved in the direction close to the main hook, so that the mounting frame gradually passes through the first mounting hole and disengages from the support plate, thereby completing the disassembly of the main hook and the support plate, and the operation is simple and convenient. When the mounting frame is connected to the support plate, the main hook can be connected to the support plate more stably.

[0009] Preferably, the end of the third rod segment close to the main hook is hinged with a limit rod for limiting the third rod segment from being separated from the second mounting hole, and the end of the third rod segment away from the second rod segment is fixedly connected to a limit block, the limit block contacts a surface of the limit rod facing away from the second rod segment, and a spring in a normal state is fixedly connected between the limit rod and the third rod segment.

[0010] By adopting the above technical solution, when the mounting frame and the support plate are in a connected state, the limiting rod limits the third rod segment from being separated from the second mounting hole, thereby improving the stability of the connection between the mounting frame and the support plate, and when the mounting frame and the support plate need to be disassembled, the limiting rod is rotated toward the third rod segment until the limiting rod and the third rod segment can pass through the second mounting hole at the same time, and the mounting frame and the support plate can be disassembled, which is easy to operate.

[0011] Preferably, a surface of the support plate close to the main hook is fixedly connected with a plurality of fixing rods, and each fixing rod is detachably connected with a plurality of auxiliary hooks.

[0012] By adopting the above technical solution, the number of auxiliary hooks can be increased or decreased, so that the amount of materials transported by the crane at a time can be controlled according to demand.

[0013] Preferably, the auxiliary hook is fixedly connected to a sliding block at one end close to the fixed rod, a sliding groove is provided on a surface of the sliding block close to the support plate, the fixed rod is slidably plugged into the sliding groove, the opening of the sliding groove close to the support plate is narrower than the inside of the sliding groove, and a locking piece is connected to the sliding block to lock the sliding block and the fixed rod.

[0014] By adopting the above technical solution, when it is necessary to install an auxiliary hook on the fixed rod, the sliding block connected to the auxiliary hook is slidably inserted into the fixed rod from one end of the fixed rod, which makes it easy to increase or decrease the number of auxiliary hooks connected to the fixed rod, and the operation of installing the auxiliary hook is simple.

[0015] Preferably, the locking member comprises a screw rod threadedly connected to a side wall of the sliding block, and one end of the screw rod extends into the sliding groove and presses against a side wall of the fixing rod.

[0016] By adopting the above technical solution, the screw rod is rotated to move toward or away from the fixed rod, so that the locking state of the sliding block and the fixed rod can be easily controlled.

[0017] Preferably, the support plate is arranged in a horizontal direction, a plurality of fixing rods are evenly distributed around the axis of the support plate, and each fixing rod is fixedly connected with the same scale.

[0018] By adopting the above technical solution, it is convenient to install the same number of auxiliary hooks at the same position on each fixed rod by observing the scale, so that when the auxiliary hooks on the support plate lift the material, the force on the support plate is more uniform, which is beneficial to extending the service life of the support plate.

[0019] Preferably, a suspension component is fixedly connected between the main hook and the hanging bracket. The suspension component includes a plurality of suspension rings, and every two adjacent suspension rings are hung on each other.

[0020] By adopting the above technical solution, during the process of the main hook hoisting materials, multi-angle swinging occurs, so that the materials can be hoisted more smoothly.

[0021] Preferably, a control component for locking between adjacent suspension rings is connected to the suspension component. A first groove is formed on one side surface of the opening of the suspension ring, and a second groove is formed on the other side surface of the opening of the suspension ring. The control component includes a hook fixedly connected to the bottom surface of the first groove, and further includes a plugging ring fixedly connected to the bottom surface of the second groove. One first groove on each suspension ring corresponds to the second groove on another adjacent suspension ring, and the hook on the first groove is plugged into the plugging ring on the second groove.

[0022] By adopting the above technical solution, when hoisting materials with a large mass is required, every two adjacent suspension rings are rotated towards each other, and each hook is plugged into the opposite plugging ring, so as to fixedly connect every two adjacent suspension rings. The swinging of materials with a large mass during the process of hoisting and transporting materials is reduced, thereby reducing the occurrence of dangerous situations.

[0023] Preferably, a suspension component is also fixedly connected between the auxiliary hook and the fixed rod, and the suspension component is detachably connected to the fixed rod.

[0024] By adopting the above technical solution, it is convenient to adjust the state of the auxiliary hook and the fixed rod to be swingable or fixed.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The disassembly and assembly of the main hook and the support plate are completed simply and conveniently;

[0027] 2. It is convenient to increase or decrease the number of auxiliary hooks connected to the fixed rod;

[0028] 3. By adjusting the suspension component, the swinging of materials with a large mass during the process of hoisting and transporting materials is reduced, thereby reducing the occurrence of dangerous situations. Description of the Drawings

[0029] Figure 1 It is a schematic diagram showing the overall structure of the lifting hook in the embodiment of the present application.

[0030] Figure 2 It is a schematic diagram showing the connection structure of the hanging bracket and the support plate in the embodiment of the present application.

[0031] Figure 3It is a schematic structural diagram showing the hanging component in an embodiment of the present application.

[0032] Explanation of reference numerals: 1, support plate; 11, first mounting hole; 12, second mounting hole; 2, main hook; 3, fixing rod; 4, auxiliary hook; 41, mounting rod; 42, sliding block; 421, sliding groove; 5, hanging frame; 51, first rod section; 52, second rod section; 53, third rod section; 54, limiting rod; 55, limiting block; 56, spring; 6, hanging component; 61, hanging ring; 611, first groove; 612, second groove; 62, middle hanging ring; 63, end hanging ring; 7, screw; 8, control component; 81, hook; 82, insertion ring. Detailed implementation manners

[0033] The following will Figures 1 - 3 further describe the present application in detail.

[0034] An embodiment of the present application discloses a crane hook. Referring to Figure 1 , it is fixedly connected to the crane, and the crane drives the hook to complete lifting and lowering. The crane hook includes a support plate 1 fixedly connected to the crane. The support plate 1 is arranged horizontally. A main hook 2 is detachably connected to the middle of the support plate 1. The main hook 2 is located below the support plate 1. A plurality of fixing rods 3 are fixedly connected to the lower surface of the support plate 1. The plurality of fixing rods 3 are evenly distributed around the axis of the support plate 1. An auxiliary hook 4 is detachably connected to each fixing rod 3.

[0035] When transporting materials, the materials are usually hoisted by the main hook 2 to complete the transportation of the materials. When it is necessary to increase the number of materials transported by the crane at one time, the need for transporting multiple materials simultaneously is met by installing an auxiliary hook 4 on each fixing rod 3.

[0036] Referring to Figure 1 and Figure 2 , a first mounting hole 11 and a second mounting hole 12 are opened on the bottom surface of the support plate 1. The upper end of the main hook 2 is connected with a hanging frame 5. A hanging component 6 is fixedly connected between the main hook 2 and the hanging frame 5. The main hook 2 and the hanging frame 5 are connected through the hanging component 6. The hanging frame 5 includes a first rod section 51, a second rod section 52 and a third rod section 53. The first rod section 51 and the third rod section 53 are arranged vertically. The first rod section 51 is inserted into the first mounting hole 11, and the third rod section 53 is inserted into the second mounting hole 12. One end of the second rod section 52 is fixedly connected to the first rod section 51, and the other end is fixedly connected to the third rod section 53. The second rod section 52 is lapped on the upper surface of the support plate 1. The distance between the outermost side surfaces of the first rod section 51 and the third rod section 53 is less than or equal to the length of the first mounting hole 11.

[0037] When it is necessary to disassemble and separate the hanging bracket 5 from the support plate 1, move the hanging bracket 5 upward until the third rod section 53 vertically upward disengages from the second mounting hole 12. Then rotate the hanging bracket 5 with the first rod section 51 as the axis until the hanging bracket 5 can pass through the first mounting hole 11. Then move the hanging bracket 5 downward so that the hanging bracket 5 passes through the first mounting hole 11 and disengages from the installation. At this time, the disassembly between the hanging bracket 5 and the support plate 1 is completed.

[0038] When it is necessary to assemble between the hanging bracket 5 and the support plate 1, align the hanging bracket 5 with the first mounting hole 11, and move the hanging bracket 5 upward so that the hanging bracket 5 is inserted into the first mounting hole 11. Continue to move the hanging bracket 5 upward. When the second rod section 52 and the third rod section 53 extend out of the first mounting hole 11, rotate the hanging bracket 5 until the third rod section 53 is aligned with the second mounting hole 12. Then move the hanging bracket 5 downward so that the third rod section 53 is inserted into the second mounting hole 12. In this way, the assembly between the hanging bracket 5 and the support plate 1 is completed.

[0039] In order to strengthen the connection between the hanging bracket 5 and the support plate 1, a limiting rod 54 is hinged at one end of the third rod section 53 far from the second rod section 52. The limiting rod 54 is perpendicular to the third rod section 53 and is arranged in the direction close to the first rod section 51. A limiting block 55 is also fixedly connected to one end of the third rod section 53 far from the second rod section 52. The limiting block 55 contacts one surface of the limiting rod 54 facing away from the second rod section 52. A spring 56 is arranged between the limiting rod 54 and the third rod end. One end of the spring 56 is fixedly connected to the third rod section 53, and the other end is fixedly connected to the limiting rod 54. The spring 56 is in a normal state and is located on the side of the limiting rod 54 far from the limiting block 55.

[0040] The limiting rod 54 restricts the third rod section 53 from vertically upward disengaging from the second mounting hole 12. When the third rod section 53 needs to disengage from the second mounting hole 12, rotate the limiting rod 54 in the direction close to the third rod section 53. The limiting rod 54 rotates and compresses the spring 56. Then the hanging bracket 5 can be moved upward, so that the third rod section 53, the limiting rod 54 and the limiting block 55 vertically disengage from the second mounting hole 12.

[0041] An installation rod 41 is connected to each secondary hook 4. A hanging assembly 6 is also fixedly connected between the installation rod 41 and the secondary hook 4. The connection between the installation rod 41 and the secondary hook 4 is connected through the hanging assembly 6. The upper end of the installation rod 41 is fixedly connected with a sliding block 42. A sliding groove 421 is opened on the upper surface of the sliding block 42. Both ends of the sliding groove 421 horizontally penetrate the sliding block 42. The upper end opening of the sliding groove 421 is narrower than the inside of the sliding groove 421. The shape of the vertical section of the fixed rod 3 is the same as the shape of the vertical section of the sliding groove 421. The fixed rod 3 is inserted into the sliding groove 421 so that the fixed rod 3 is slidably connected with the sliding block 42. A locking member for locking between the sliding block 42 and the fixed rod 3 is connected to each sliding block 42.

[0042] When it is necessary to disassemble and separate the auxiliary hook 4 from the support plate 1, adjust the locking member so that the sliding block 42 can move relative to the fixed rod 3, and then move the sliding block 42 along the length direction of the fixed rod 3 until the sliding block 42 disengages from one end of the fixed rod 3. By slidably connecting the sliding block 42 to the fixed rod 3, it is convenient to install the required number of auxiliary hooks 4 on the support plate 1.

[0043] Each fixed rod 3 is marked with scales along its length direction, and the scales on each fixed rod 3 are the same. Install the same number of auxiliary hooks 4 on each fixed rod 3, and at the same time adjust the sliding block 42 on each fixed rod 3 to slide to the same position on each fixed rod 3 according to the scales, which is convenient for the support plate 1 to be stressed more evenly and reduce the situation that the support plate 1 tilts due to uneven stress and thus disengages from the crane connection.

[0044] The locking member includes a screw rod 7 threadedly connected to one side wall of the sliding block 42. The screw rod 7 is perpendicular to the locking block and one end of the screw rod 7 extends into the sliding groove 421 to abut against the side wall of the fixed rod 3. Rotate the screw rod 7 to move the screw rod 7 away from the fixed rod 3, and at this time the sliding block 42 can move along the fixed rod 3.

[0045] Refer to Figure 1 and Figure 3 , the lifting assembly 6 includes a plurality of lifting rings 61. The plurality of lifting rings 61 are arranged vertically and are hooked to each other between every two adjacent lifting rings 61. In this way, it is convenient for the main hook 2 and the auxiliary hook 4 to swing at multiple angles to lift the material.

[0046] However, when the main hook 2 and the auxiliary hook 4 lift materials with a relatively large mass, it is easy to have dangerous situations when the lifted materials swing. To solve this problem, a control assembly 8 for locking between every two adjacent lifting rings 61 is connected to the lifting assembly 6.

[0047] On one side surface of the opening of the lifting ring 61, a first groove 611 is provided, and on the other side surface of the opening of the lifting ring 61, a second groove 612 is provided. The plurality of lifting rings 61 are divided into a plurality of middle lifting rings 62 and end lifting rings 63 located at both ends of the lifting assembly 6. The control assembly 8 includes a hook 81 and a plug-in ring 82. A hook 81 is fixedly connected to the bottom wall of the first groove 611 of the end lifting ring 63, and a plug-in ring 82 is fixedly connected to the bottom wall of the second groove 612 of the end lifting ring 63. Two hooks 81 are fixedly connected to the bottom wall of the first groove 611 of the middle lifting ring 62, and two plug-in rings 82 are fixedly connected to the bottom wall of the second groove 612 of the middle lifting ring 62. The opening of the plug-in ring 82 is arranged in the vertical direction.

[0048] When it is necessary to lock adjacent hanging rings 61, rotate two adjacent hanging rings 61 relative to each other so that the first groove 611 on each hanging ring 61 moves in the direction close to the second groove 612 on the other hanging ring 61. Subsequently, control the hook 81 on the first groove 611 to be inserted into the insertion ring 82 on the second groove 612. At this time, the locking between adjacent hanging rings 61 is completed.

[0049] The implementation principle of a crane hook according to an embodiment of the present application is as follows: When it is necessary to replace the main hook 2, push the limit rod 54 in the direction close to the third rod section 53, and move the hanging bracket 5 upward until the third rod section 53 vertically upward disengages from the second mounting hole 12. Subsequently, rotate the hanging bracket 5 90 degrees in the horizontal direction. Then move the hanging bracket 5 downward until the hanging bracket 5 passes through the first mounting hole 11. At this time, the main hook 2 is disassembled from the support plate 1.

[0050] Then align the hanging bracket 5 on another main hook 2 with the first mounting hole 11, and move the hanging bracket 5 upward until the third rod section 53, the limit rod 54, and the limit block 55 all vertically pass through the first mounting hole 11. Then rotate the hanging bracket 5 90 degrees in the horizontal direction, align the third rod section 53 with the second mounting hole 12, push the limit rod 54 in the direction close to the third rod section 53, and move the hanging bracket 5 downward until the third rod section 53 is inserted into the second mounting hole 12. In this way, the assembly of another main hook 2 and the support plate 1 is completed.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A crane hook, comprising a main hook (2), characterized in that: It also comprises a support plate (1) fixedly connected to the crane, a first mounting hole (11) and a second mounting hole (12) being formed on one surface of the support plate (1), a mounting frame (5) being fixedly connected to one end of the main hook (2) close to the support plate (1), the mounting frame (5) comprising a first rod segment (51) plugged into the first mounting hole (11), a second rod segment (52) being fixedly connected to one end of the first rod segment (51) away from the main hook (2), the second rod segment (52) being overlapped on a surface of the support plate (1) away from the main hook (2), a third rod segment (53) being fixedly connected to one end of the second rod segment (52) away from the first rod segment (51) and plugged into the second mounting hole (12), and a distance between the farthest surfaces of the first rod segment (51) and the third rod segment (53) being less than or equal to the length of the first mounting hole (11); A limiting rod (54) is hingedly connected to one end of the third rod segment (53) close to the main hook (2) to limit the third rod segment (53) from being separated from the second mounting hole (12); an end of the third rod segment (53) away from the second rod segment (52) is fixedly connected to a limiting block (55); the limiting block (55) contacts a surface of the limiting rod (54) away from the second rod segment (52); and a spring (56) in a normal state is fixedly connected between the limiting rod (54) and the third rod segment (53); A surface of the support plate (1) close to the main hook (2) is fixedly connected to a plurality of fixing rods (3), and each fixing rod (3) is detachably connected to a plurality of auxiliary hooks (4); A hanging assembly (6) is fixedly connected between the main hook (2) and the hanging frame (5), and the hanging assembly (6) comprises a plurality of hanging rings (61), and every two adjacent hanging rings (61) are hung together; The lifting assembly (6) is connected to a control assembly (8) for locking adjacent lifting rings (61); a first groove (611) is provided on one side of the lifting ring (61) opening, and a second groove (612) is provided on the other side of the lifting ring (61) opening; the control assembly (8) comprises a hook (81) fixedly connected to the bottom surface of the first groove (611), and also comprises a plug-in ring (82) fixedly connected to the bottom surface of the second groove (612); a first groove (611) on each lifting ring (61) corresponds to a second groove (612) on another adjacent lifting ring (61); the hook (81) on the first groove (611) is plugged into the plug-in ring (82) on the second groove (612).

2. A crane hook according to claim 1, characterized in that: The end of the auxiliary hook (4) close to the fixed rod (3) is fixedly connected to a sliding block (42); a surface of the sliding block (42) close to the support plate (1) is provided with a sliding groove (421); the fixed rod (3) and the sliding groove (421) are slidably plugged; an opening of the sliding groove (421) close to the support plate (1) is narrower than an interior of the sliding groove (421); and a locking member for locking the sliding block (42) and the fixed rod (3) is connected to the sliding block (42).

3. The overhead crane hook according to claim 2, characterized in that: The locking member includes a screw rod (7) threadedly connected to one side wall of the sliding block (42), and one end of the screw rod (7) extends into the sliding groove (421) and abuts against one side wall of the fixed rod (3).

4. A crane hook according to claim 1, characterized in that: The support plate (1) is arranged in the horizontal direction, and a plurality of fixed rods (3) are uniformly distributed around the axis of the support plate (1), and the same scale is fixedly connected to each fixed rod (3).

5. A crane hook according to claim 1, characterized in that: A suspension assembly (6) is also fixedly connected between the secondary hook (4) and the fixed rod (3), and the suspension assembly (6) is detachably connected to the fixed rod (3).

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