Lifting appliance with adjustable lifting hook

Abstract

The utility model relates to the field of lifting appliances, in particular to a lifting appliance with adjustable lifting hooks, which comprises a lifting plate, an adjusting mechanism, a limiting mechanism and two lifting hooks, the two lifting hooks are symmetrically arranged on two sides below the lifting plate, a vertical rod is fixed at the top end of each lifting hook, and the adjusting mechanism comprises a telescopic component and two moving blocks. The limiting mechanism comprises four limiting rods and two swing assemblies, the two moving blocks can be driven to relatively slide in the lifting plate through the telescopic assemblies, then the two lifting hooks can be driven to move, and adjustment of the distance between the two lifting hooks is achieved; the position of the lifting hook can be adaptively adjusted according to the distance between the lifting rings on the furnace pipe needing to be lifted, and the furnace pipe lifting device is flexible to use, wide in application range, high in adjusting efficiency and beneficial to improving the lifting efficiency.

Description

Technical Field

[0001] The utility model relates to the field of slings, in particular to a sling with an adjustable hook. Background Art

[0002] Pit-type annealing furnace is mainly suitable for annealing heat treatment of coiled wire, copper parts, stainless steel, steel strips and metal parts. When the pit-type annealing furnace is in use, the furnace core is generally lifted by a hoist.

[0003] The existing Chinese utility model patent with patent announcement number CN209081258U discloses an annealing furnace hanger with adjustable hook spacing, including a base, a sleeve arranged on the base in the vertical direction, a support column rotatably sleeved in the sleeve, a horizontally arranged crossbar with one end fixedly connected to the top of the support column, and two hanging rings fixedly arranged on the top of the annealing furnace body, a cylinder is arranged on the lower surface of the crossbar in the vertical downward direction, and a mounting rod is fixedly arranged on the end of the cylinder piston rod in the horizontal direction; two mutually parallel fixing bars are fixedly arranged on the lower surface of the mounting rod along its length direction, and two hooks that can be buckled with the two hanging rings are respectively slidably connected between the two fixing bars along the length direction of the fixing bars, and the fixing bar is provided with a positioning component for fixing the hooks.

[0004] The above-mentioned annealing furnace hanger has the following shortcomings:

[0005] After adjusting the hook position, it is necessary to manually fix the hook position with bolts, which is time-consuming and labor-intensive, affecting the efficiency of adjusting the hook position, and further affecting the lifting efficiency;

[0006] There is no limit structure on the hook. When the furnace core shakes during lifting, the lifting ring on the furnace core is easy to fall off the hook, causing the furnace core to fall off, which can easily cause damage to the furnace core.

[0007] In view of the above problems, a kind of lifting device with adjustable hook is provided. Summary of the invention

[0008] The purpose of the utility model is to provide a sling with adjustable hook to solve the problems raised in the above background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A hook-adjustable sling comprises a sling plate, an adjustment mechanism, a limit mechanism and two hooks;

[0011] Two hooks are symmetrically arranged on both sides below the hanging plate, and a vertical rod is fixed on the top of each hook;

[0012] The adjustment mechanism includes a telescopic assembly and two moving blocks, the two moving blocks are symmetrically slidably arranged inside the hanging plate, the bottom end of each moving block is extended out of the hanging plate, and the top end of each vertical rod is fixedly connected to the bottom end of a moving block through the mounting assembly;

[0013] The limiting mechanism includes four limiting rods and two swinging components. A limiting rod is hinged on both sides of one end of each vertical rod close to the hook. Each swinging component is located between the vertical rod and the two limiting rods. An intermediate rod is fixed between the ends of the two limiting rods away from the swinging components.

[0014] As a further solution of the utility model: the telescopic assembly includes a gear, a motor and two racks, the gear is rotatably arranged in the middle of the inner cavity of the hanging plate, the motor is installed at the top of the hanging plate, the output end of the motor is fixedly connected to the top of the gear, the two racks are symmetrically arranged on both sides of the gear, each rack and gear are meshed with each other, each rack is installed on the surface of a moving block, and each rack is slidably arranged inside the hanging plate.

[0015] As a further solution of the utility model: a side of each moving block away from the rack is provided with an avoidance groove.

[0016] As a further solution of the utility model: guide grooves are provided on the inner walls on both sides of the hanging plate, a guide bar is slidably provided inside each guide groove, and each guide bar is fixedly connected to a rack.

[0017] As a further solution of the utility model: each swing component includes a slider, an electric push rod and a connecting rod, two slide grooves are symmetrically opened on one side of the vertical rod, the slider is slidably arranged inside the two slide grooves, one end of the connecting rod is hinged to the middle part of one end of the two limit rods away from the middle rod, the other end of the connecting rod is hinged to the slider, the electric push rod is installed on the surface of the vertical rod, and the output end of the electric push rod is fixedly connected to the slider.

[0018] As a further solution of the utility model: each mounting assembly includes a mounting plate and four bolts, the mounting plate is located below the moving block, the top end of the vertical rod is fixedly connected to the mounting plate, and the four bolts are symmetrically arranged between the moving block and the mounting plate.

[0019] As a further solution of the utility model: a hanging rope is fixedly installed on the top of the hanging plate.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model is a kind of hanger with adjustable hook. By setting an adjustment mechanism, the telescopic component can drive the two moving blocks to slide relative to each other inside the hanging plate, and then drive the two hooks to move, so as to adjust the distance between the two hooks. In actual use, the position of the hook can be adaptively adjusted according to the distance between the lifting rings on the furnace to be hoisted. It is more flexible to use and has a wide range of uses. At the same time, it has high adjustment efficiency, which is conducive to improving the lifting efficiency.

[0022] 2. The utility model provides a lifting device with an adjustable hook. By setting a limit mechanism, a swing assembly can drive two limit rods to swing, so that the limit rods can cover the opening of the hook to achieve a limit effect. It can effectively prevent the lifting ring from slipping out of the inside of the hook, which is beneficial to ensuring the stability of the furnace when it is lifted and to improving the safety factor.

[0023] 3. The utility model provides a sling with an adjustable hook, which can realize the installation and disassembly of the hook by setting a mounting assembly, and is convenient for replacing the hook. When the hook is damaged, there is no need to replace the entire sling, which is beneficial to increasing the service life of the sling. The setting of the lifting rope makes it easy to install the sling on the lifting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the internal structure of the hanging plate in the utility model.

[0026] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A.

[0027] Figure 4 It is a partial structural schematic diagram of the utility model.

[0028] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of part B.

[0029] Among them: 11, hanging plate; 12, hanging rope; 13, vertical rod; 14, hook; 15, moving block; 16, mounting plate; 17, slider; 18, slide groove; 19, electric push rod; 20, connecting rod; 21, limit rod; 22, gear; 23, rack; 24, motor; 25, avoidance groove; 26, guide strip; 27, guide groove; 28, middle rod. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] The utility model provides the following preferred embodiments:

[0032] Embodiment 1, as Figure 1-Figure 5 As shown, a sling with adjustable hooks includes a sling plate 11, an adjustment mechanism, a limit mechanism and two hooks 14;

[0033] Two hooks 14 are symmetrically arranged on both sides below the hanging plate 11, and a vertical rod 13 is fixed to the top of each hook 14;

[0034] The adjustment mechanism includes a telescopic assembly and two moving blocks 15, the two moving blocks 15 are symmetrically slidably arranged inside the hanging plate 11, the bottom end of each moving block 15 is extended out of the hanging plate 11, and the top end of each vertical rod 13 is fixedly connected to the bottom end of a moving block 15 through a mounting assembly;

[0035] The telescopic assembly can drive the two moving blocks 15 to slide relatively inside the hanging plate 11, thereby driving the two hooks 14 to move, so as to adjust the distance between the two hooks 14. In actual use, the position of the hook 14 can be adaptively adjusted according to the distance between the hanging rings on the furnace to be hoisted, which is more flexible to use and has a wide range of applications.

[0036] By setting the installation assembly, the installation and disassembly of the hook 14 can be realized, and the hook 14 can be replaced conveniently. When the hook 14 is damaged, there is no need to replace the entire sling, which is beneficial to prolonging the service life of the sling. The setting of the sling rope 12 facilitates the installation of the sling on the lifting equipment.

[0037] The limiting mechanism includes four limiting rods 21 and two swinging components. A limiting rod 21 is hinged on both sides of one end of each vertical rod 13 close to the hook 14. Each swinging component is located between the vertical rod 13 and the two limiting rods 21. An intermediate rod 28 is fixed between the ends of the two limiting rods 21 away from the swinging components.

[0038] The swing assembly can drive the two limit rods 21 to swing, so that the limit rods 21 can cover the opening of the hook 14, play a limiting effect, and can effectively prevent the lifting ring from slipping out of the inside of the hook 14, which is beneficial to ensure the stability of the furnace when it is lifted and to improve the safety factor.

[0039] like Figure 1-Figure 5As shown, the telescopic assembly includes a gear 22, a motor 24 and two racks 23. The gear 22 is rotatably arranged in the middle of the inner cavity of the hanging plate 11. The motor 24 is installed at the top of the hanging plate 11. The output end of the motor 24 is fixedly connected to the top of the gear 22. The two racks 23 are symmetrically arranged on both sides of the gear 22. Each rack 23 and the gear 22 are meshed with each other. Each rack 23 is installed on the surface of a moving block 15, and each rack 23 is slidably arranged inside the hanging plate 11.

[0040] When the positions of the two hooks 14 need to be adjusted, the motor 24 is controlled to work. When the motor 24 is working, it can drive the gear 22 to select. Since the gear 22 and the rack 23 are meshed with each other, when the gear 22 rotates, it can drive the two racks 23 to move closer to or away from each other, and then drive the two moving blocks 15 to slide inside the hanging plate 11, so that the two moving blocks 15 move closer to or away from each other. When moving, the two moving blocks 15 can drive the hooks 14 to move through the vertical rod 13, thereby realizing the adjustment of the positions of the two hooks 14 and facilitating the lifting of furnaces with different diameters.

[0041] like Figure 1-Figure 5 As shown, each moving block 15 is provided with an avoidance groove 25 on one side away from the rack 23 . The avoidance groove 25 is provided to play an avoidance role and avoid collision between the moving blocks 15 and the rack 23 that are not connected to each other.

[0042] like Figure 1-Figure 5 As shown, guide grooves 27 are provided on the inner walls on both sides of the hanging plate 11, and a guide bar 26 is slidably provided inside each guide groove 27. Each guide bar 26 is fixedly connected to a rack 23. Through the sliding connection between the guide groove 27 and the guide bar 26, the movement of the rack 23 can be guided, thereby increasing the stability of the rack 23 when moving, and thus increasing the stability of the hanger when working.

[0043] like Figure 1-Figure 5 As shown, each swing assembly includes a slider 17, an electric push rod 19 and a connecting rod 20. Two slide grooves 18 are symmetrically provided on one side of the vertical rod 13. The slider 17 is slidably arranged inside the two slide grooves 18. One end of the connecting rod 20 is hinged to the middle of one end of the two limit rods 21 away from the middle rod 28. The other end of the connecting rod 20 is hinged to the slider 17. The electric push rod 19 is installed on the surface of the vertical rod 13. The output end of the electric push rod 19 is fixedly connected to the slider 17.

[0044] When it is necessary to install the lifting ring on the furnace inside the lifting hook 14, firstly control the electric push rod 19 to work, so that the electric push rod 19 drives the slider 17 to move downward, and at this time, the limit rod 21 can be driven to rotate under the action of the connecting rod 20, so that the end of the limit rod 21 close to the connecting rod 20 can rotate downward, and the end of the limit rod 21 close to the intermediate rod 28 can rotate upward, so that the limit rod 21 and the intermediate rod 28 can be away from the lifting hook 14, and the lifting ring can be hoisted on the lifting hook 14 at this time;

[0045] Subsequently, the electric push rod 19 is controlled to work, so that the electric push rod 19 can drive the slider 17 to reset, and then drive the limit rod 21 to reset through the connecting rod 20, so that the intermediate rod 28 can overlap the end of the hook 14 and cover the opening of the hook 14 to achieve a limiting effect, and the surface ring slides out from the inside of the hook 14 to ensure the stability of the hoisting device during lifting.

[0046] like Figure 1-Figure 5 As shown, each mounting assembly includes a mounting plate 16 and four bolts. The mounting plate 16 is located below the moving block 15. The top of the vertical rod 13 is fixedly connected to the mounting plate 16. The four bolts are symmetrically arranged between the moving block 15 and the mounting plate 16.

[0047] When the hook 14 is damaged, the mounting plate 16 can be removed from the moving block 15 and replaced with a new hook 14, so that the hook 14 can be replaced. When the hook 14 is damaged, there is no need to replace the entire sling, which is beneficial to improving the service life of the sling.

[0048] like Figure 1-Figure 5 As shown, a lifting rope 12 is fixedly installed on the top of the hanging plate 11. The setting of the lifting rope 12 facilitates the connection of the lifting device with a lifting device (such as a crane) to facilitate the installation of the lifting device.

[0049] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sling with adjustable hook, comprising a sling plate (11), characterized in that: It also includes an adjustment mechanism, a limit mechanism and two hooks (14); Two hooks (14) are symmetrically arranged on both sides below the hanging plate (11), and a vertical rod (13) is fixed to the top of each hook (14); The adjustment mechanism comprises a telescopic assembly and two moving blocks (15), the two moving blocks (15) are symmetrically slidably arranged inside the hanging plate (11), the bottom end of each moving block (15) is arranged to extend out of the hanging plate (11), and the top end of each vertical rod (13) is fixedly connected to the bottom end of a moving block (15) through the mounting assembly; The limiting mechanism comprises four limiting rods (21) and two swinging assemblies, wherein each vertical rod (13) has a limiting rod (21) hingedly connected to both sides of one end close to the hook (14), each swinging assembly is located between the vertical rod (13) and the two limiting rods (21), and an intermediate rod (28) is fixed between the ends of the two limiting rods (21) away from the swinging assembly.

2. The adjustable hook sling according to claim 1, characterized in that: The telescopic assembly comprises a gear (22), a motor (24) and two racks (23); the gear (22) is rotatably arranged in the middle of the inner cavity of the hanging plate (11); the motor (24) is mounted on the top of the hanging plate (11); the output end of the motor (24) is fixedly connected to the top of the gear (22); the two racks (23) are symmetrically arranged on both sides of the gear (22); each rack (23) and the gear (22) are meshed with each other; each rack (23) is mounted on the surface of a moving block (15); and each rack (23) is slidably arranged inside the hanging plate (11).

3. The adjustable hook sling according to claim 2, characterized in that: A side of each moving block (15) away from the rack (23) is provided with an avoidance groove (25).

4. The adjustable hook sling according to claim 3, characterized in that: Guide grooves (27) are provided on the inner walls of both sides of the hanging plate (11), a guide bar (26) is slidably arranged inside each guide groove (27), and each guide bar (26) is fixedly connected to a rack (23).

5. The adjustable hook sling according to claim 4, characterized in that: Each swing assembly comprises a slider (17), an electric push rod (19) and a connecting rod (20); two slide grooves (18) are symmetrically provided on one side of the vertical rod (13); the slider (17) is slidably arranged inside the two slide grooves (18); one end of the connecting rod (20) is hinged to the middle of one end of two limit rods (21) away from the middle rod (28); the other end of the connecting rod (20) is hinged to the slider (17); the electric push rod (19) is mounted on the surface of the vertical rod (13); and the output end of the electric push rod (19) is fixedly connected to the slider (17).

6. The adjustable hook sling according to claim 5, characterized in that: Each mounting assembly comprises a mounting plate (16) and four bolts. The mounting plate (16) is located below the moving block (15). The top end of the vertical rod (13) is fixedly connected to the mounting plate (16). The four bolts are symmetrically arranged between the moving block (15) and the mounting plate (16).

7. The adjustable hook sling according to claim 6, characterized in that: A hanging rope (12) is fixedly mounted on the top end of the hanging plate (11).

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