Electric hoist with limiting function

Abstract

The utility model relates to the technical field of electric hoists, and discloses an electric hoist with a limiting function, which comprises an electric hoist body, a steel wire rope is wound inside the electric hoist body, a connecting block is sleeved on the outer wall of the steel wire rope, and a lifting hook is fixedly mounted at the bottom of the connecting block. A through groove is formed in the lifting hook, a limiting mechanism is arranged on the lifting hook, a positioning mechanism is arranged on the limiting mechanism, the limiting mechanism comprises a rotating shaft, and the rotating shaft is rotationally connected to the inner wall of the lifting hook. According to the electric hoist, the clamping plates are arranged, the clamping plates tightly press articles in the lifting hooks, and at the moment, the clamping plates can prevent the articles from falling off the lifting hooks and can limit the articles in the lifting hooks, so that the articles are stably hung in the lifting hooks, and the articles are prevented from shaking in the lifting process of the electric hoist body.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to an electric hoist with a limiting function. Background Art

[0002] Electric hoist is a kind of lifting equipment installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places.

[0003] Electric hoists mainly use hooks to suspend objects. The hooks on most electric hoists on the market are blocked by a stopper to prevent objects from falling off the hook. Although this can prevent objects from falling, it cannot limit the suspended objects. The objects can still swing inside the hook, posing a safety hazard during the suspension process. Utility Model Content

[0004] The purpose of the utility model is to provide an electric hoist with a limiting function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric hoist with a limiting function, comprising an electric hoist body, a steel wire rope is wound around the inside of the electric hoist body, a connecting block is sleeved on the outer wall of the steel wire rope, a hook is fixedly installed at the bottom of the connecting block, a through slot is opened on the hook, a limiting mechanism is arranged on the hook, and the limiting mechanism can make the object stably suspended inside the hook, and the limiting mechanism is provided with a positioning mechanism, and the positioning mechanism can limit the irregular shaped object inside the hook, and the limiting mechanism includes:

[0006] A rotating shaft, the rotating shaft is rotatably connected to the inner wall of the hook, and the rotating shaft passes through the hook and is fixedly installed with a worm gear, and a clamping plate is fixedly installed on the outer wall of the rotating shaft, and the object can be limited inside the hook by arranging the rotating shaft and the clamping plate;

[0007] A convex plate, the convex plate is fixedly mounted on the outer wall of the hook;

[0008] A worm is rotatably connected to the bottom of the convex plate, and the worm is meshed with the worm wheel. The worm and the worm wheel can be arranged to drive the rotating shaft to rotate.

[0009] Preferably, a knob is fixedly mounted on the bottom of the worm.

[0010] Preferably, the positioning mechanism comprises a screw rod, the screw rod is threadedly connected to the inner wall of the clamping plate, and the screw rod passes through the clamping plate.

[0011] Preferably, a rotating block is fixedly mounted on one end of the screw rod, and a rubber block is fixedly mounted on the other end of the screw rod. By arranging the screw rod in conjunction with the rubber block, irregularly shaped objects can be limited.

[0012] Preferably, the side wall of the clamping plate is fitted on the inner wall of the through groove.

[0013] Preferably, the clamping plate is in the shape of an arc.

[0014] Compared with the prior art, the utility model provides an electric hoist with a limit function, which has the following beneficial effects:

[0015] 1. The electric hoist with a limiting function can rotate the worm by turning the knob, and at the same time, cooperate with the worm wheel and the rotating shaft to drive the splint to rotate out of the through slot, so that the splint can press the object tightly inside the hook. At this time, the splint can not only prevent the object from falling off the hook, but also limit the object inside the hook, so that the object can be stably hung inside the hook, preventing the electric hoist body from shaking during the lifting process.

[0016] 2. The electric hoist with the limiting function rotates the screw rod through the rotating block, so that the screw rod drives the rubber block to tightly contact the surface of the object. At this time, the splint is used in conjunction with the screw rod and the rubber block to limit the position of irregularly shaped objects, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the hook of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the hook of the utility model;

[0020] Figure 4 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0021] In the figure: 1. Electric hoist body; 2. Wire rope; 3. Connecting block; 4. Hook; 5. Through slot; 6. Limiting mechanism; 61. Rotating shaft; 62. Convex plate; 63. Worm; 64. Worm wheel; 65. Clamp; 66. Knob; 7. Positioning mechanism; 71. Screw; 72. Rotating block; 73. Rubber block. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4As shown, the utility model provides a technical solution: an electric hoist with a limiting function, comprising an electric hoist body 1, a steel wire rope 2 is wound around the interior of the electric hoist body 1, a connecting block 3 is sleeved on the outer wall of the steel wire rope 2, a hook 4 is fixedly installed on the bottom of the connecting block 3, objects can be suspended by the hook 4, a through slot 5 is opened on the hook 4, a limiting mechanism 6 is arranged on the hook 4, by arranging the limiting mechanism 6, not only can the objects be prevented from falling off the hook 4, but also the objects can be limited inside the hook 4, so that the objects are stably hung inside the hook 4, a positioning mechanism 7 is arranged on the limiting mechanism 6, and by arranging the positioning mechanism 7, objects with irregular shapes can be limited inside the hook 4.

[0023] The above-mentioned limiting mechanism 6 includes a rotating shaft 61, a convex plate 62, a worm 63, a worm wheel 64, a clamping plate 65, and a knob 66; the rotating shaft 61 is rotatably connected to the inner wall of the hook 4, and the rotating shaft 61 passes through the hook 4 and is fixedly installed with a worm wheel 64, and the outer wall of the rotating shaft 61 is fixedly installed with a clamping plate 65, and the side wall of the clamping plate 65 is attached to the inner wall of the through groove 5. The rotation of the rotating shaft 61 can drive the clamping plate 65 to rotate toward the outside of the through groove 5, so that the clamping plate 65 presses the object tightly inside the hook 4. The shape of the clamping plate 65 is The arc shape, the clamping plate 65 can not only prevent the items from falling off the hook 4, but also limit the items inside the hook 4, so that the items are stably hung inside the hook 4. The protruding plate 62 is fixedly installed on the outer wall of the hook 4, and the worm 63 is rotatably connected to the bottom of the protruding plate 62. The worm 63 is meshed with the worm wheel 64. A knob 66 ​​is fixedly installed on the bottom of the worm 63. The worm 63 is rotated by the knob 66. The worm 63 rotates, and the worm 63 rotates and cooperates with the worm wheel 64 meshed with it to drive the rotating shaft 61 to rotate.

[0024] Specifically, the positioning mechanism 7 includes a screw rod 71, a rotating block 72, and a rubber block 73; the screw rod 71 is threadedly connected to the inner wall of the splint 65, and the screw rod 71 passes through the splint 65. A rotating block 72 is fixedly installed at one end of the screw rod 71. The screw rod 71 is rotated by the rotating block 72. At this time, the screw rod 71 and the splint 65 are threadedly connected to each other, so that the screw rod 71 can move up and down. The other end of the screw rod 71 is fixedly installed with a rubber block 73. The screw rod 71 is used to drive the rubber block 73 to tightly abut against the surface of the object, so that irregularly shaped objects can be limited inside the hook 4.

[0025] Working principle: first hang the object to be suspended inside the hook 4, and then rotate the worm 63 through the knob 66. While the worm 63 rotates, the worm wheel 64 engaged with it can drive the rotating shaft 61 to rotate. The rotation of the rotating shaft 61 can drive the splint 65 to rotate toward the outside of the through groove 5, so that the splint 65 presses the object tightly inside the hook 4. At this time, the splint 65 can not only prevent the object from falling off the hook 4, but also limit the object inside the hook 4, so that the object is stably suspended inside the hook 4, preventing the electric hoist body 1 from shaking during the lifting process.

[0026] When the object suspended by the hook 4 is of irregular shape, the object is first clamped by the clamping plate 65, and then the screw rod 71 is rotated by the rotating block 72. At this time, the screw rod 71 can be moved up and down under the threaded connection cooperation with the clamping plate 65, and the screw rod 71 is used to drive the rubber block 73 to tightly abut the surface of the object. At this time, the clamping plate 65 is used to cooperate with the screw rod 71 and the rubber block 73 to limit the position of the irregular shaped object, which is more convenient to use.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An electric hoist with a limit function, comprising an electric hoist body (1), a steel wire rope (2) wound inside the electric hoist body (1), a connecting block (3) sleeved on the outer wall of the steel wire rope (2), a hook (4) fixedly installed at the bottom of the connecting block (3), characterized in that: The hook (4) is provided with a through slot (5), the hook (4) is provided with a limiting mechanism (6), the limiting mechanism (6) is provided with a positioning mechanism (7), and the limiting mechanism (6) comprises: A rotating shaft (61), the rotating shaft (61) is rotatably connected to the inner wall of the hook (4), and the rotating shaft (61) passes through the hook (4) and is fixedly mounted with a worm gear (64), and a clamping plate (65) is fixedly mounted on the outer wall of the rotating shaft (61); A convex plate (62), wherein the convex plate (62) is fixedly mounted on the outer wall of the hook (4); A worm (63) is rotatably connected to the bottom of the convex plate (62), and the worm (63) is meshed with a worm wheel (64).

2. The electric hoist with a limit function according to claim 1, characterized in that: A knob (66) is fixedly mounted on the bottom of the worm (63).

3. The electric hoist with a limit function according to claim 1, characterized in that: The positioning mechanism (7) comprises a screw rod (71), the screw rod (71) is threadedly connected to the inner wall of the clamping plate (65), and the screw rod (71) passes through the clamping plate (65).

4. The electric hoist with a limit function according to claim 3, characterized in that: A rotating block (72) is fixedly mounted on one end of the screw rod (71), and a rubber block (73) is fixedly mounted on the other end of the screw rod (71).

5. The electric hoist with a limit function according to claim 1, characterized in that: The side wall of the clamping plate (65) is fitted on the inner wall of the through groove (5).

6. The electric hoist with a limit function according to claim 1, characterized in that: The clamping plate (65) is in the shape of an arc.

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