CN215487531U - Anti-drop pulley tool - Google Patents

Abstract

The utility model discloses a slip wheel tool capable of preventing a hand from falling off, which comprises an installation rack arranged on a hoisting device and capable of swinging, wherein four sliding limiting plates with sliding grooves are fixedly arranged on the outer side wall of the installation rack, sliding plates are arranged on the inner side walls of two adjacent sliding limiting plates in a sliding manner, the bottom of each sliding plate is connected with the inner bottom of the installation rack through a reaction spring assembly, and a shaft installation seat is fixedly arranged at the top of each sliding plate. According to the utility model, under the mutual cooperation of the installation rack, the sliding limiting plate, the sliding plate, the reaction spring assembly, the shaft installation seat, the pulley, the sliding rope rail groove and the locking device, two groups of reaction spring assemblies are arranged between the installation rack and the pulley, and the locking device is arranged above the pulley, so that when the dragging rope accidentally drops, the reaction spring assembly lifts the pulley, the locking device clamps the dragging rope, the dropping of goods is prevented, and the goods can be safely released.

Description

Anti-drop pulley tool

Technical Field

The utility model relates to the technical field of construction hoisting and installation, in particular to a pulley tool capable of preventing a hand from falling off.

Background

The pulley is widely applied to the construction hoisting installation process, the pulley is a small wheel which is provided with a groove at the periphery and can rotate around a shaft, and a simple machine which is composed of a disc which can rotate around a central shaft and is provided with the groove and a flexible cable crossing the disc and can rotate around the central shaft is called the pulley.

At present, the conventional pulley is easy to cause the condition that a lifting rope is out of hand due to fatigue or distraction of operators in the loading and hoisting process, so that the heavy object is easy to freely fall, the potential safety hazard is further generated, unnecessary personnel and economic loss are caused, and the anti-falling pulley tool is developed based on the reasons.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the condition that a lifting rope is easy to fall off the hand due to fatigue or distraction of operators in the prior art, and provides a falling-off prevention pulley tool.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a slip wheel instrument of anticreep hand, is including setting up the installation frame that can swing on hoist device, the fixed limit slide that is provided with four spouts of installation frame lateral wall, adjacent two limit slide inside wall slides and is provided with the sliding plate, the bottom passes through reaction spring assembly with the installation frame and connects in sliding plate bottom, the fixed axle mount pad that is provided with in sliding plate top, two be equipped with the pulley of connecting through a plurality of bearing frames between the axle mount pad, the pulley lateral wall is equipped with the slide rope rail groove of concave type setting, the top is equipped with the locking device who plays limiting displacement in the installation frame.

Preferably, the locking device includes that the rotation is tied through rotating and is rotated the locking that is the arc setting of setting top in the installation frame and grab, the locking piece that two symmetries of locking bottom fixedly connected with set up is grabbed, the fixed rope clamping teeth that are provided with a plurality of in locking bottom of grabbing, the locking bottom of grabbing agrees with the lateral wall in slide rope rail groove mutually.

Preferably, the outer side wall of the sliding plate is fixedly provided with two symmetrically arranged limiting blocks, and the outer side wall of the limiting block is connected with the inner side wall of the sliding groove in a sliding manner.

Preferably, the top of the locking claw is provided with a swinging port convenient to swing, the outer side wall of the locking claw is provided with a rotating hole convenient for the rotating bolt to enter, and the rotating hole penetrates through the swinging port.

Preferably, the top of the mounting frame is provided with a hanging plate convenient for the hoisting device to hoist.

Preferably, it is a plurality of the card rope tooth is parallel to each other along the lateral wall of locking the rotation direction of grabbing, and is a plurality of the card rope tooth is annular equidistance and distributes on locking the bottom of grabbing.

Preferably, the locking piece is made of deformable and wear-resistant rubber.

The utility model has the beneficial effects that:

1. under the mutually supporting of installation frame, limit slide, sliding plate, reaction spring assembly, axle mount pad, pulley, sliding rope rail groove and locking device, through set up two sets of reaction spring assembly between installation frame and pulley, set up locking device again in the top of pulley, when pulling the unexpected drop of rope, reaction spring assembly lifting pulley to let locking device block and pull the rope, thereby prevent falling of goods, let the goods take off the hand also can be very safe.

2. Under the interact of installing frame, limit slide, sliding plate, reaction spring assembly, axle mount pad, pulley, slide rope rail groove and locking device, the setting of a plurality of calorie rope teeth in the locking device is favorable to pulling that a plurality of calorie rope teeth blocked to restrict and drops on calorie rope tooth, lets the device use labour saving and time saving more, and also lets the device more reasonable.

Drawings

FIG. 1 is a schematic structural view of a pulley tool for preventing a hand from slipping off;

FIG. 2 is a front view of a drop-resistant pulley tool according to the present invention;

FIG. 3 is a left side view of a drop-resistant pulley tool in accordance with the present invention;

FIG. 4 is a bottom view of a locking grab in a drop-off prevention pulley tool of the present invention;

FIG. 5 is a side-throw view of a drop-off prevention pulley tool locking grab in accordance with the present invention;

FIG. 6 is a schematic structural view of a mounting frame and a limiting slide plate in the anti-drop pulley tool according to the present invention;

fig. 7 is a schematic structural view of the anti-drop-out pulley tool when the locking claw inclines.

In the figure: 1. installing a frame; 2. a limiting sliding plate; 3. a sliding plate; 4. a reaction spring assembly; 5. a shaft mount; 6. a pulley; 7. a sliding rope rail groove; 8. locking and grabbing; 9. locking sheets; 10. rope clamping teeth; 11. a swing port; 12. a hanger plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-7, a drop-proof pulley tool comprises an installation frame 1 which is arranged on a hoisting device and can swing, wherein a hoisting plate 12 which is convenient for the hoisting device to hoist is arranged at the top of the installation frame 1, the hoisting device is a hoisting device with a lifting function in the prior art, the hoisting device is a conventional technical means, the hoisting device can be replaced by other devices, only one scene environment in a real situation is simulated, and the installation frame 1 can swing in the scene environment.

The fixed limit slide 2 that is provided with four spouts that have of 1 lateral wall of installing frame, 2 inside walls of two adjacent limit slides slide and be provided with sliding plate 3, the fixed stopper that is provided with two symmetries of 3 lateral walls of sliding plate, homonymy stopper lateral wall and spout inside wall sliding connection.

The bottom passes through reaction spring assembly 4 to be connected in 3 bottoms of sliding plate and the installation frame 1, reaction spring assembly 4's position is shown in fig. 2, reaction spring assembly 4 comprises a plurality of reset spring, the fixed axle mount pad 5 that is provided with in 3 tops of sliding plate, be equipped with the pulley 6 of connecting through a plurality of bearing frames between two axle mount pads 5, 6 lateral walls of pulley are equipped with the smooth rope rail groove 7 of concave type setting, the smooth rope rail groove 7 that sets up on the pulley 6, be for the removal of conveniently dragging the rope, the setting of limit slide 2 and sliding plate 3 is for conveniently that axle mount pad 5 can slide from top to bottom in the spout, and the length of spout is not less than the gliding scope of pulley 6, let pulley 6 safer.

The inner top of the installation rack 1 is provided with a locking device with a limiting effect, the locking device comprises a locking claw 8 which is arranged in the installation rack 1 in an arc shape in a rotating mode through a rotating bolt, the bottom of the locking claw 8 is fixedly connected with two locking pieces 9 which are symmetrically arranged, the locking pieces 9 are made of deformable and wear-resistant rubber materials, the bottom of the locking claw 8 is fixedly provided with a plurality of clamping rope teeth 10, the shape of the clamping rope teeth 10 is as shown in figure 5, the end parts of the clamping rope teeth 10 are flat corners to prevent a dragging rope from being brushed, the bottom of the locking claw 8 is matched with the inner side wall of a sliding rope rail groove 7, the outer side walls of the plurality of clamping rope teeth 10 in the rotating direction of the locking claw 8 are parallel to each other, the purpose of setting is that the dragging rope clamped on the clamping rope teeth 10 can fall off conveniently, the plurality of clamping rope teeth 10 are distributed on the bottom of the locking claw 8 in an annular equidistant mode, the top of the locking claw 8 is provided with a swinging claw opening 11 which can swing conveniently, the outer side wall of the locking claw 8 is provided with a rotating hole which is convenient for the rotating bolt to enter, and the rotating hole penetrates through the swinging port 11.

The shape and the position of the locking grab 8 are shown in fig. 1/2/3/4/5, the locking grab 8 can rotate around the rotating bolt, the outer contour of the locking grab 8 coincides with the local outer contour of the pulley 6, the bottom of the locking grab 8 is matched with the inner side wall of the sliding rope rail groove 7, the locking grab 8 mainly has the effect of clamping a dragging rope clamped in the sliding rope rail groove 7, and the plurality of rope clamping teeth 10 and the two locking pieces 9 mainly strengthen the dragging rope to be fixed on the locking grab 8, so that the dragging rope is fixed and stops moving.

The working principle is as follows: 1. the upper end of the mounting frame 1 is mounted on a hoisting device through a hoisting plate 12, and a dragging rope is arranged in a sliding rope rail groove 7 of the pulley 6;

2. the heavy object is tied to one end of the dragging rope, the other end of the operator pulls one end of the dragging rope forcibly, the dragging rope drives the pulley 6 to descend, the reaction spring assembly 4 is pressed downwards by the sliding plate 3 to work, and the dragging rope moves to drive the heavy object to ascend;

3. when operating personnel pulls carelessly and takes off the hand in the twinkling of an eye when dragging, pulley 6 rises under the effect of reaction spring assembly 4, it supports to hang locking of top and grabs 8 until pulling the rope, carry out preliminary speed reduction, locking piece 9 and the sliding rope rail groove 7 contact deformation of 8 below of simultaneously locking grabs, increase pulley 6 and locking the frictional force of grabbing between 8, slow down once more, a plurality of card rope teeth 10 with pull the rope contact and will pull the rope and block simultaneously, slow down once more, locking grabs 8 and can steadily will block and pull the rope this moment, in the twinkling of an eye of blocking and pulling the rope, locking grabs 8 wholly to the goods direction skew, as shown in figure 7, the thing that falls this moment can stop falling, hang in the air, with this effect that reaches the prevention and control and draws the object to fall.

4. When operating personnel reacts, when needing to put down the goods again, what the pulling hand was held drags rope one end, drags the rope and moves down and drives pulley 6 and move down pulley 6 compression reaction spring unit 4 to let a plurality of card rope teeth 10 from dragging the rope and coming off, let two locking piece 9 and pulley 6 break away from, thereby let operating personnel can continue not hard up to drag the rope and come down the goods.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a slip pulley instrument of anticreep hand, is including setting up installation frame (1) that can swing on hoist device, its characterized in that, installation frame (1) lateral wall is fixed to be provided with four limit slide (2) that have the spout, adjacent two limit slide (2) inside wall slides and is provided with sliding plate (3), the bottom is connected through reaction spring assembly (4) in sliding plate (3) bottom and the installation frame (1), sliding plate (3) top is fixed to be provided with axle mount pad (5), two be equipped with pulley (6) of connecting through a plurality of bearing frames between axle mount pad (5), pulley (6) lateral wall is equipped with smooth rope rail groove (7) that concave type set up, the top is equipped with the locking device that plays limiting displacement in installation frame (1).

2. The anti-drop pulley tool according to claim 1, wherein the locking device comprises a locking claw (8) which is arranged in an arc shape and is rotatably arranged at the top in the installation rack (1) through a rotating bolt, two symmetrically arranged locking sheets (9) are fixedly connected to the bottom of the locking claw (8), a plurality of rope clamping teeth (10) are fixedly arranged at the bottom of the locking claw (8), and the bottom of the locking claw (8) is matched with the inner side wall of the sliding rope rail groove (7).

3. The anti-drop pulley tool according to claim 1, wherein two symmetrically arranged limiting blocks are fixedly arranged on the outer side wall of the sliding plate (3), and the outer side wall of the limiting block is slidably connected with the inner side wall of the sliding groove on the same side.

4. The anti-drop pulley tool according to claim 2, wherein the top of the locking claw (8) is provided with a swing port (11) for facilitating swing, the outer side wall of the locking claw (8) is provided with a rotation hole for facilitating the entry of a rotation bolt, and the rotation hole penetrates through the swing port (11).

5. The anti-drop pulley tool according to claim 1, characterized in that a hanging plate (12) for facilitating the hoisting of the hoisting device is arranged on the top of the mounting frame (1).

6. A drop-proof pulley tool according to claim 2, characterized in that a plurality of said teeth (10) are parallel to each other along the outer side wall of the rotation direction of the locking grab (8), and a plurality of said teeth (10) are annularly and equidistantly distributed on the bottom of the locking grab (8).

7. Anti-drop pulley tool according to claim 2, characterized in that said locking plate (9) is made of deformable and wear-resistant rubber.

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