CN215101504U - Machinery is from locking-type scissors type hoist device - Google Patents

Abstract

A mechanical self-locking scissor type hoisting device relates to a hoisting device. The lifting hook is hinged with one end of each of the two first suspension arms, the other end of each first suspension arm is hinged with the corresponding second suspension arm, the two second suspension arms are hinged in a crossed manner, and the other ends of the two second suspension arms are connected with one end of the corresponding third suspension arm; the other end of each third suspension arm is respectively connected with the corresponding clamping jaw positioning plate, and the clamping jaws are arranged on the opposite surfaces of the two clamping jaw positioning plates; and a self-locking mechanism is arranged between one first suspension arm and the corresponding second suspension arm. The utility model is suitable for the manual hoisting operation of non-shaft parts with inconvenient manual grabbing of the appearance structure; the problems that parts are damaged due to no mechanical self-locking structure, the visual line of hoisting operation is blocked, the weight of a hoisting device is heavy, the manufacturing cost is high and the like due to poor operability or complex mechanical self-locking structure are solved; the up-and-down action of the hook is finally converted into the clamping and loosening action of the clamping jaw.

Description

Machinery is from locking-type scissors type hoist device

Technical Field

The utility model relates to a hoist device, especially a machinery is from locking-type scissors type hoist device.

Background

When carrying out vertical hoisting and horizontal transposition operation to spare part, no mechanical self-locking structure can cause the clamping jaw to be in free state and the poor problem of gouge spare part and operability in operation process, and complicated mechanical self-locking structure can cause hoisting device self overall dimension big, the sight is hindered when hoist and mount and the big problem of self weight, has then improved whole hoist and mount system's bearing capacity requirement, and manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a machinery is from locking-type scissors type hoist device.

The purpose is achieved, the utility model adopts the following technical proposal: a mechanical self-locking scissor type hoisting device comprises a lifting hook, a self-locking mechanism, two first suspension arms, two second suspension arms, two third suspension arms, two clamping jaw positioning plates and two clamping jaws; the lifting hook is hinged with one end of each of two first suspension arms, the other end of each first suspension arm is hinged with the corresponding second suspension arm, the two second suspension arms are hinged in a crossed manner, and the other ends of the two second suspension arms are connected with one end of the corresponding third suspension arm; the other end of each third suspension arm is connected with a corresponding clamping jaw positioning plate, and clamping jaws are arranged on the opposite surfaces of the two clamping jaw positioning plates; and a self-locking mechanism is arranged between one first suspension arm and the corresponding second suspension arm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is used for the vertical hoisting and the horizontal transposition of non-axle class spare part are particularly useful for weight and exceed 15kg or the inconvenient manual artifical hoist and mount operation of non-axle class spare part that snatchs of appearance structure.

2. The utility model provides a do not have mechanical self-locking structure and the hoist and mount operation sight that the spare part, the operability is poor or mechanical self-locking structure complicacy caused is obstructed, hoist device self weight is big, manufacturing cost scheduling problem.

3. The utility model discloses a pivot and davit form scissors type structure, can finally turn into the tight action of loosening of clamp of clamping jaw with the upper and lower action of lifting hook. When the self-locking spring is in a completely loosened state, namely a natural state, the self-locking spring is pressed into the self-locking plate to realize mechanical self-locking, and meanwhile, the self-locking spring gives a certain pulling force to the self-locking rod, so that the reliability of self-locking can be ensured.

Drawings

FIG. 1 is a schematic view of the structure of the present invention in its natural state;

FIG. 2 is a schematic view of the clamping of FIG. 1;

FIG. 3 is a schematic structural view of the self-locking mechanism in a self-locking state;

FIG. 4 is a schematic structural view of the self-locking mechanism when the self-locking mechanism is released from the self-locking state;

FIG. 5 is a schematic view of the movement path of the locking pin when the self-locking lever enters the self-locking state;

FIG. 6 is a schematic diagram showing the movement locus of the lock pin when the self-locking lever is released from the self-locking state.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

A mechanical self-locking scissor type hoisting device comprises a lifting hook 1, a self-locking mechanism, two first hoisting arms 6, two second hoisting arms 10, two third hoisting arms 12, two clamping jaw positioning plates 18 and two clamping jaws 20; the lifting hook 1 is hinged with one end of each of two first suspension arms 6, the other end of each first suspension arm 6 is hinged with a corresponding second suspension arm 10, the two second suspension arms 10 are hinged in a crossed manner, and the other ends of the two second suspension arms are connected with one end of a corresponding third suspension arm 12; the method specifically comprises the following steps: the lifting hook 1 and one end of each of the two first suspension arms 6 are sleeved outside the upper rotating shaft 2, preferably, the lifting hook 1 is positioned between the two first suspension arms 6, and preferably, each of the first suspension arms 6 comprises two arm plates 7; the other ends of the two first suspension arms 6 and one ends of the two second suspension arms 10 are sleeved on the outer sides of the corresponding middle rotating shafts 4, and the second suspension arms 10 are located between the two arm plates 7 of the corresponding first suspension arms 6; the two second suspension arms 10 are hinged in a crossed manner through the lower rotating shaft 3, and the other ends of the two second suspension arms are respectively fixedly connected with one end of the corresponding third suspension arm 12 through two sets of bolt nuts; meanwhile, locking gaskets and locking nuts are used for screwing between the arm plate 7 and the lifting hook 1, between the arm plate 7 and the second suspension arms 10 and between the intersection points of the two second suspension arms 10, and allowance for rotation on corresponding rotating shafts is reserved; the other end of each third suspension arm 12 is connected with a corresponding clamping jaw positioning plate 18, and clamping jaws 20 are arranged on the opposite surfaces of the two clamping jaw positioning plates 18; the clamping jaws 20 are used for clamping and hoisting parts, so that specific design is required according to the hoisted parts, and the two clamping jaws 20 may be the same or different; the parts shown in the attached drawings of the utility model have irregular left and right shapes, so the two clamping jaws 20 have different structures; a self-locking mechanism is arranged between one first suspension arm 6 and the corresponding second suspension arm 10.

The self-locking mechanism comprises a self-locking rod 16 and a self-locking plate 17; one end of the self-locking rod 16 is hinged to the first suspension arm 6 through a self-locking connecting rod 14, the other end of the self-locking rod 16 is provided with a lock pin, the lock pin is matched with a self-locking plate 17 for limiting connection, and the self-locking plate 17 is arranged on the second suspension arm 10.

A self-locking spring 15 is arranged between the self-locking lever 16 and the first suspension arm 6 to ensure that the self-locking lever 16 is reliably locked in the self-locking plate 17 during mechanical self-locking.

The self-locking plate 17 comprises a guard plate and a Y-shaped plate 8; the guard plate is connected with the second suspension arm 10 through two screws in a diagonal installation mode, the Y-shaped plate 8 is arranged on the outer side of the guard plate, and the inner concave opening of the Y-shaped plate is connected with the lock pin of the self-locking rod 16 in a matched limiting mode.

One of the third booms 12 is provided with a main handle 23.

An auxiliary handle 24 is arranged on the outer side of each clamping jaw positioning plate 18, and the main handle 23 and the auxiliary handle 24 are convenient for the clamping jaws 20 to be placed at the lifting positions of the lifted parts, vertically lifted, horizontally rotated and the like.

Two ends of the lower rotating shaft 3 of the cross hinge point of the two second sections of suspension arms 10 are respectively connected with a connecting plate, two top limiting plates 22 are arranged at the lower ends of the connecting plates, and the top limiting plates 22 are located between the two clamping jaws 20.

The lower surface of the top limiting plate 22 is embedded with a protective layer, the top limiting plate 22 does not actually participate in hoisting stress, and the lower flat plate position of the top limiting plate 22 can be embedded with a protective layer made of a material with lower hardness than the hoisted part so as to avoid colliding with the hoisted part.

The utility model discloses a theory of operation:

through pivot (go up pivot 2, lower pivot 3 and two internal rotation axle 4) and first davit 6, second davit 10 and third davit 12 formation scissors type structure, when lifting hook 1 place last pivot 2 upward movement when realizing the hoist and mount, two internal rotation axle 4 passive inside shrinkage, and then drive third davit 12 passive inside shrinkage, finally make the clamping jaw 20 of two clamping jaw locating plates 18 connections do the clamping action, realize the tight process of hoist and mount clamp, reverse operation realizes hoist and mount and unclamp the process.

Before the hoist and mount operation the utility model discloses when being in the complete unclamping state, the lockpin of self-locking lever 16 passes through the manual work and pushes down, gets into the auto-lock state according to the route that figure 5 shows, and the lockpin movement track shows moves to realizing mechanical auto-lock in the auto-locking plate 17, and the structure after its auto-lock is shown in figure 1, and auto-locking spring 15 is in the extension state this moment, gives self-locking lever 16 certain pulling force, ensures that the reliable locking of self-locking lever 16 is in auto-locking plate 17. At this time, the upper rotating shaft 2 is closest to the lower rotating shaft 3, the two middle rotating shafts 4 are farthest away, and the clamping jaws 20 are completely loosened and fixed in position.

During hoisting operation, after the two clamping jaws 20 are placed at the hoisting position of a hoisted part, the self-locking lever 16 is manually pressed downwards, the self-locking state of the locking pin of the self-locking lever 16 is released according to the figure 6, so that the locking pin is separated from the self-locking plate 17, the structure after the self-locking is released is shown as the clamping state in figure 2, and the self-locking spring 15 is in a free state at the moment. Lifting hook 1 rises and drives 2 upward movements of pivot, and the pivot 2 and 3 distances grow gradually down on going up, and two well pivots 4 distances reduce gradually, and scissors formula structure makes clamping jaw 20 shrink, finally realizes that clamping jaw 20 presss from both sides tight work piece completely. Then the lifting hook 1 continues to rise, and the lifted part is separated from the original placement height, so that the lifting is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a machinery is from locking-type scissors type hoist device which characterized in that: the lifting device comprises a lifting hook (1), a self-locking mechanism, two first lifting arms (6), two second lifting arms (10), two third lifting arms (12), two clamping jaw positioning plates (18) and two clamping jaws (20); the lifting hook (1) is hinged with one end of each of two first suspension arms (6), the other end of each first suspension arm (6) is hinged with the corresponding second suspension arm (10), the two second suspension arms (10) are hinged in a crossed mode, and the other ends of the two second suspension arms are connected with one end of the corresponding third suspension arm (12); the other end of each third suspension arm (12) is respectively connected with a corresponding clamping jaw positioning plate (18), and clamping jaws (20) are arranged on the opposite surfaces of the two clamping jaw positioning plates (18); a self-locking mechanism is arranged between one first suspension arm (6) and the corresponding second suspension arm (10).

2. A mechanical self-locking scissor type lifting device according to claim 1, wherein: the self-locking mechanism comprises a self-locking rod (16) and a self-locking plate (17); one end of the self-locking rod (16) is hinged to the first suspension arm (6), a lock pin is arranged at the other end of the self-locking rod (16), the lock pin is matched with a self-locking plate (17) for limiting connection, and the self-locking plate (17) is arranged on the second suspension arm (10).

3. A mechanical self-locking scissor type lifting device according to claim 2, wherein: and a self-locking spring (15) is arranged between the self-locking rod (16) and the first suspension arm (6).

4. A mechanical self-locking scissor type lifting device according to claim 3, wherein: the self-locking plate (17) comprises a guard plate and a Y-shaped plate (8); the guard plate is connected with the second suspension arm (10), the Y-shaped plate (8) is arranged on the outer side of the guard plate, and the inner notch of the Y-shaped plate is matched with the lock pin of the self-locking rod (16) for limiting connection.

5. A mechanically self-locking scissor type lifting device according to claim 1 or 4, wherein: one of the third suspension arms (12) is provided with a main handle (23).

6. A mechanically self-locking scissor type lifting device according to claim 5, wherein: and an auxiliary handle (24) is arranged on the outer side of each clamping jaw positioning plate (18).

7. A mechanical self-locking scissor type lifting device according to claim 1 or 6, wherein: the lower ends of the two second sections of suspension arms (10) are provided with top limiting plates (22), and the top limiting plates (22) are located between the two clamping jaws (20).

8. A mechanical self-locking scissor type lifting device according to claim 7, wherein: and a protective layer is arranged on the lower surface of the top limiting plate (22).

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