CN217838040U - Lifting appliance - Google Patents

Abstract

The present application relates to a spreader. This hoist includes: the lifting device comprises a lifting frame and at least two lifting arms, wherein each lifting arm is provided with a first end and a second end which are opposite to each other along the extending direction of the lifting arm, the first end of each lifting arm is movably connected to the same side of the lifting frame, and the second end of each lifting arm is provided with a supporting part for supporting an object to be lifted. When all the suspension arms are positioned at the first position of the suspension arms, each supporting part is separated from the body to be lifted. When all the suspension arms are located at the second position of the suspension arms, each supporting part can support the body to be hoisted together. The worker only needs to switch the position of the suspension arm between the first position and the second position, the suspension arm does not need to be pulled to avoid collision between the suspension arm and the component when the lifting appliance descends, and the worker does not need to manually connect the suspension arm and the component after the lifting appliance descends to the right position and is switched to the second position, so that great convenience is brought to the worker, and time and labor are saved.

Description

Lifting appliance

Technical Field

The application relates to the technical field of operation transportation mechanical equipment, in particular to a lifting appliance.

Background

Current box body type component, because the particularity of its production and installation, need pass through transport many times, and need carry out 90 upsets to the finished product after production, need use the hoist in the transportation by necessity. The existing lifting appliance is usually lifted by a lifting frame and a plurality of flexible parts (such as ropes, hanging strips, chains and the like), and the lifting appliance needs to be lowered to a certain height in the lifting process to lift a member. The flexible part is easy to swing when the lifting appliance is descended, needs to be pulled by a worker through force application, and is manually connected to a component by the worker when the lifting appliance is descended to a certain height, so that the worker wastes time and labor during lifting.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a lifting appliance that overcomes the above-mentioned drawbacks, in order to solve the problem that the lifting appliance in the prior art is time-consuming and labor-consuming in lifting.

A spreader, comprising:

a hanger; and

at least two suspension arms, each suspension arm having a first end and a second end opposite to each other along the extending direction thereof, the first end of each suspension arm being movably connected to the same side of the hanger, the second end of each suspension arm having a supporting portion for supporting an object to be lifted;

when all the suspension arms are positioned at the first position of the suspension arms, each supporting part is separated from the body to be hoisted; when all the suspension arms are located at the second position of the suspension arms, each supporting part can support the body to be hoisted together.

In one embodiment, each of the booms are moved toward their first positions toward each other and each of the booms are moved toward their second positions away from each other.

In one embodiment, the first end of the boom is configured to move linearly along the spreader.

In one embodiment, the hanger is provided with a suspension part, the first end of the hanger arm is provided with a connecting part suspended from the suspension part, and the connecting part is controlled to move along the extending direction of the suspension part.

In one embodiment, the support part comprises a hook part protruding from the end of the second end, the hook part having a support surface for supporting the object to be hoisted.

In one embodiment, the supporting surface is provided with a positioning groove for bearing the positioning groove of the object to be hoisted. In one embodiment, the at least two suspension arms are symmetrically arranged along a symmetry plane of the hanger, protruding directions of the hooks on the same side of the symmetry plane are the same, and protruding directions of the hooks on one side of the symmetry plane are opposite to protruding directions of the hooks on the other side of the symmetry plane.

In one embodiment, the hanger includes a mounting frame and a sling, the sling being connected to one side of the mounting frame and the sling being connected to the other side of the mounting frame.

In one embodiment, the mounting frame includes two longitudinal beams and at least two cross beams, each cross beam being connected between two longitudinal beams, the suspension cables being connected to the longitudinal beams, and the suspension arms being movably connected to the cross beams.

In one embodiment, the mounting frame further comprises a reinforcing rib connecting the cross beam and the longitudinal beam.

When the lifting appliance is actually operated, the lifting frame is arranged on the bearing body, the body to be lifted is supported on a bearing platform, and the bearing body moves and drives the lifting appliance to move to the position of the body to be lifted. Each suspension arm is switched to the first position, then the lifting appliance is driven by the bearing body to descend, and the lifting appliance is separated from the body to be lifted in the descending process, namely the lifting appliance cannot collide with the body to be lifted when descending. When the lifting appliance is lowered to the preset height, the supporting part of the lifting appliance is positioned below the body to be lifted. And switching each suspension arm to a second position, so that the to-be-lifted body is positioned right above the supporting part. When the load-bearing body drives the lifting appliance to ascend, the body to be lifted is supported on the supporting part, so that the lifting of the body to be lifted is realized. Compared with the prior art, the worker only needs to switch the position of the suspension arm between the first position and the second position, the suspension arm does not need to be pulled to avoid collision between the suspension arm and the component when the lifting appliance descends, and the suspension arm and the component do not need to be manually connected by the worker after the lifting appliance descends to the right position and is switched to the second position, so that great convenience is brought to the worker, and time and labor are saved.

Drawings

Fig. 1 is a schematic view illustrating a state in which a lifting tool lifts an object to be lifted in an embodiment of the present application;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a front view of the structure shown in FIG. 1;

FIG. 4 is a side view of the structure shown in FIG. 1;

fig. 5 is a top view of the structure shown in fig. 1.

Description of reference numerals:

a spreader 10; a hanger 11; a hanging portion 111; a sling 112; a mounting frame 113; stringers 1131; a beam 1132; a reinforcing rib 1133; a boom 12; a connecting portion 121; a hook portion 122; the body 20 to be hoisted.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The lifting appliance 10 provided by the embodiment of the application is installed on the bearing body and can lift the body 20 to be lifted, so that the bearing body can support or convey the body 20 to be lifted. The load-bearing body may be a crown block, a crane, a robot, etc., and is not limited herein. The object 20 to be hoisted may be a plate-shaped member, a box-shaped prefabricated member, or other types of members, and is not limited herein. In the following embodiments, the beneficial effects are mainly described by taking the body 20 to be hoisted as a box-type member, which is not a limitation to the application environment of the spreader 10 of the present application.

Referring to fig. 1, in one embodiment, a spreader 10 is provided, which includes a spreader 11 and at least two arms 12, each arm 12 having a first end and a second end opposite to each other along its extending direction, the first end of each arm 12 being movably connected to the same side of the spreader 11, and the second end of each arm 12 having a supporting portion for supporting a body 20 to be lifted. Wherein each suspension arm 12 is controlled to be switched between a first position and a second position in the moving direction of the suspension arm, when all the suspension arms 12 are located at the first position of the suspension arm, each support part is separated from the object 20 to be lifted, and when all the suspension arms 12 are located at the second position of the suspension arm, each support part can jointly support the object 20 to be lifted.

In the above-mentioned lifting appliance 10, during actual operation, the lifting frame 11 is disposed on the bearing body, the body 20 to be lifted is supported on a bearing platform, and the bearing body moves and drives the lifting appliance 10 to move to the body 20 to be lifted. Each suspension arm 12 can be manually switched to the first position, then the load-bearing body drives the lifting appliance 10 to descend, and in the descending process, the lifting appliance 10 is separated from the body 20 to be lifted, namely, the lifting appliance 10 cannot collide with the body 20 to be lifted when descending. When the spreader 10 is lowered to a preset height, the supporting portion of the spreader 10 is located at a position below the body 20 to be lifted. Each boom 12 can be manually switched to the second position so that the body 20 to be lifted is located directly above the support. When the load bearing body drives the lifting appliance 10 to ascend, the body 20 to be lifted is supported on the supporting part, so that the lifting of the body 20 to be lifted is realized.

Compared with the prior art, a worker only needs to switch the position of the suspension arm 12 between the first position and the second position, the suspension arm 12 does not need to be pulled to avoid collision between the suspension arm 12 and a component when the lifting appliance 10 descends, and the worker does not need to manually connect the suspension arm 12 and the component after the lifting appliance 10 descends to the second position, so that great convenience is brought to the worker, and time and labor are saved.

It should be noted that the boom 12 is a rigid member rather than a flexible member. The boom 12 can be made of common materials such as steel, which is economical.

In some embodiments, each boom 12 moves toward its first position closer to each other and each boom 12 moves toward its second position farther from each other.

In practice, the individual booms 12 are first moved to a first position, in which the individual booms 12 are close to each other, and all the booms 12 can pass through the interior of the box-shaped member and be separated from the inner wall of the box-shaped member when the spreader 10 is lowered. The respective arms 12 are then moved to a second position in which the arms 12 are spaced apart from one another and progressively closer to the inner wall of the box type member, by which time the arms 12 are in contact with the inner wall of the box type member and the support portion of the arms 12 is below the box type member, at which time the arms 12 of the spreader 10 are able to support the box type member while inside the box type member. When the component is turned over, the turning mechanism needs to be in complete contact with the whole outer side surface of the box-shaped component, so that by using the lifting appliance 10 provided by the embodiment, when the box-shaped component is subsequently turned over, the lifting arm 12 cannot interfere with the turning mechanism to take the box-shaped component, and the connection with a turning process is facilitated.

In other embodiments it is also possible that each boom 12 is switched between the first position and the second position when moving in the same direction. When in hoisting, a part of the suspension arm 12 is positioned outside the box body, and a part of the suspension arm 12 is positioned inside the box body. In other embodiments, each of the booms 12 may move away from each other when moving toward their first position and each of the booms 12 may move closer to each other when moving toward their second position. When hoisting, all the booms 12 are now outside the box. The specific manner can be set according to actual needs, and the motion relationship of the boom 12 is not particularly limited in the present application.

The connection mode of the first end of the boom 12 and the crane 11 may be a rotating connection or a moving connection, or a part of the boom 12 is a rotating connection and a part of the boom 12 is a moving connection, and is not limited in particular. When the first end of the boom 12 is pivotally connected to the spreader 11, the first end of the boom 12 may be pivotally connected to the spreader 11 via an adapter assembly. Illustratively, the adapter assembly includes a rotating shaft fixedly connected to the first end of the boom 12 and rotatably connected to the hanger 11, and a motor connected to the rotating shaft and driving the rotating shaft to rotate, and driving the boom 12 to rotate when the rotating shaft rotates. The side of the hanger 11 on which the hanger arms 12 are mounted is a mounting surface, and when each hanger arm 12 is rotated in a direction close to the mounting surface (or rotated in a direction away from the mounting surface) to be parallel to the mounting surface, the hanger arms 12 are in a first position where the hanger arms 12 do not collide with the box type member when the hanger 10 is lowered. When the swivel axis is rotated to be perpendicular to the side of the boom 11 where the boom 12 is mounted, the boom 12 is in a second position, where the support of the second end of the boom 12 can be used for supporting the member. Of course, the adapter assembly may also adopt other structural forms, and is not limited in particular.

In some embodiments, the first end of the boom 12 is configured to move linearly along the boom 11. In practice, the boom 12 can be switched between the first position and the second position when it is moved along the boom 11. At this time, the worker can operate the boom 12 with less effort and more convenience. In addition, the boom 12 can be maintained at the first position or the second position more stably by the gravity of the boom 12 itself, which contributes to simplifying the structure of the entire spreader 10 and reducing the manufacturing cost of the spreader 10.

Wherein the movement of the boom 12 may be driven by a driving means (e.g., an air cylinder) or manually by a worker. It will be appreciated that the boom 12 is moved along the mounting surface of the crane 11. In practice, the boom 12 is moved in a horizontal direction.

In a specific embodiment, referring to fig. 3 and 4, the hanger 11 is provided with a suspension portion 111, the first end of the boom 12 has a connection portion 121 suspended from the suspension portion 111, and the connection portion 121 is controlled to move along the extending direction of the suspension portion 111. When the connecting portion 121 is controlled to move along the extending direction of the suspension portion 111, the boom 12 is driven to move between the first position and the second position. At the moment, the structure is simple, and the manufacturing cost is lower.

The hanging portion 111 may be a sliding groove, the connecting portion 121 is a sliding block, and the sliding block is clamped in the sliding groove and can move along the sliding groove. Alternatively, the suspension portion 111 is a slide rod, the connection portion 121 is a connection block having a slide hole, the slide rod penetrates through the slide hole of the connection block, and the connection block drives the boom 12 to move between the first position and the second position when moving along the slide rod. Preferably, the hanging portion 111 is a pin, the connecting portion 121 is a shackle, and the shackle is hung on the pin and controlled to move along the pin. At the moment, the pin shaft and the shackle are matched to support the movement of the suspension arm 12, so that the suspension arm 12 is economical and practical and is convenient to disassemble and assemble.

In some embodiments, referring to fig. 2, the support portion comprises a hook portion 122 protruding from the end of the second end, the hook portion 122 having a support surface for supporting the object 20 to be hoisted.

In operation, when the spreader 10 is lowered to the preset height, the boom 12 is moved to the second position with the hook 122 below the box type member. At this time, when the hanger 10 is raised, one end of the box-type member extending in the wall thickness direction can be supported by the support surface while being landed on the support surface. Therefore, after the suspension arm 12 moves to the right position, the body 20 to be lifted can be supported on the supporting surface when the lifting appliance 10 is lifted, and the worker is not required to manually connect the body 20 to be lifted and the suspension bracket 11, so that the time and the labor are saved.

In particular to the embodiment, the support surface has a positioning groove for bearing the body to be lifted.

It is understood that the width direction of the positioning groove is parallel to the wall thickness direction of the box-type member. In actual operation, when the hanger 10 is raised, one end of the box-shaped member extending in the wall thickness direction can be dropped into the positioning groove and supported by the hook portion 122. At this time, the positioning groove can restrict the movement of the body 20 to be hoisted, which contributes to the improvement of the stability of the body 20 to be hoisted when hoisting. Moreover, the whole hanger 10 has a simple structure and low cost.

Further, referring to fig. 1, 3 and 4, at least two booms 12 are symmetrically arranged along the symmetry plane of the hanger 11, the protruding directions of the hooks 122 on the same side of the symmetry plane are the same, and the protruding directions of the hooks 122 on one side of the symmetry plane are opposite to the protruding directions of the hooks 122 on the other side of the symmetry plane. At this time, the boom 12 can be used to restrict the movement of the object 20 to be hoisted in the direction perpendicular to the symmetry plane, contributing to the improvement of the hoisting stability.

It will be appreciated that the centre of gravity of the arrangement of the at least two booms 12 is located on the same vertical line as the centre of gravity of the spreader 11 in order to ensure stability of the body 20 to be lifted during the lifting process.

Further, the width of the positioning groove is configured to be adjustable. Therefore, the hoisting device can be suitable for hoisting the body to be hoisted 20 with different thicknesses. Illustratively, the hook portion 122 includes a fastening portion fastened to the second end of the boom 12, a connecting portion 121, and a connector. The connecting portion 121 is movably connected to the fixing portion along the width direction, the connecting portion 121 has a plurality of first connecting holes spaced apart along the width direction, the fixing portion has a second connecting hole, and the connecting member connects the first connecting hole and the second connecting hole to adjust the extension length of the connecting portion 121, thereby adjusting the width of the positioning groove.

In other embodiments, the supporting portion may also be a member such as a claw, a clamping jaw, etc., which will not be described in detail.

In some embodiments, referring to fig. 1, 3 and 4, the spreader 11 includes a mounting frame 113 and a sling 112, the boom 12 being attached to one side of the mounting frame 113 and the sling 112 being attached to the other side of the mounting frame 113.

In actual operation, the suspension cable 112 is disposed on the load-bearing body, the supporting force of the load-bearing body is transmitted to the mounting frame 113 through the suspension cable 112, then transmitted to the suspension arm 12 through the mounting frame 113, and finally acted on the object 20 to be lifted through the suspension arm 12, so as to support the object 20 to be lifted.

The sling 112 may be a wire sling, a steel rope, a chain sling, or the like, and is not limited. The slings 112 may be provided in a plurality and are evenly attached to the mounting frame 113 to maintain a stable centre of gravity of the entire spreader 10 during lifting.

In a specific embodiment, referring to fig. 5, the mounting frame 113 includes two longitudinal beams 1131 and at least two cross beams 1132, each of the cross beams 1132 is connected between two of the longitudinal beams 1131, the suspension cable 112 is connected to the longitudinal beams 1131, and the suspension arm 12 is movably connected to the cross beams 1132.

At this time, the longitudinal beams 1131 and the cross beams 1132 are hollowed out, so that the weight of the hanger 10 can be reduced, and the energy loss of the load bearing body can be reduced.

Further, the mounting frame 113 further includes a rib 1133, and the rib 1133 connects the cross member 1132 and the longitudinal member 1131. At this time, the reinforcing ribs 1133 can improve the structural strength of the mounting frame 113, so that the whole lifting appliance 10 is more structurally reliable during lifting.

In the lifting appliance 10 provided in the embodiment of the present application, during actual operation, the lifting frame 11 is disposed on the bearing body, the body 20 to be lifted is supported on a bearing platform, and the bearing body moves and drives the lifting appliance 10 to move to the body 20 to be lifted. Each suspension arm 12 is switched to the first position, then the load-bearing body drives the lifting appliance 10 to descend, and in the descending process, the lifting appliance 10 is separated from the body 20 to be lifted, namely, the lifting appliance 10 cannot collide with the body 20 to be lifted when descending. When the spreader 10 is lowered to a preset height, the supporting portion of the spreader 10 is located at a position below the body 20 to be lifted. Each boom 12 is switched to the second position so that the body 20 to be lifted is located directly above the support. When the load bearing body drives the lifting appliance 10 to ascend, the body 20 to be lifted is supported on the supporting part, so that the lifting of the body 20 to be lifted is realized. Compared with the prior art, a worker only needs to switch the position of the suspension arm 12 between the first position and the second position, the collision between the suspension arm 12 and a component can be avoided without pulling the suspension arm 12 when the lifting appliance 10 descends, and the worker does not need to manually connect the suspension arm 12 and the component after the lifting appliance 10 descends to the proper position and is switched to the second position, so that great convenience is brought to the worker, and time and labor are saved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A spreader, comprising:

a hanger; and

at least two suspension arms, each suspension arm having a first end and a second end opposite to each other along the extending direction thereof, the first end of each suspension arm being movably connected to the same side of the hanger, the second end of each suspension arm having a supporting portion for supporting an object to be lifted;

when all the suspension arms are positioned at the first position of the suspension arms, each supporting part is separated from the body to be hoisted; when all the suspension arms are located at the second position of the suspension arms, each supporting part can support the body to be hoisted together.

2. The spreader of claim 1, wherein each of the booms are moved closer to each other towards their first position and each of the booms are moved further away from each other towards their second position.

3. The spreader of claim 1, wherein the first end of the boom is configured to move linearly along the spreader.

4. A spreader as claimed in claim 3, wherein the spreader is provided with a suspension portion, the first end of the spreader having a link portion suspended from the suspension portion, the link portion being controlled to move in the direction of extension of the suspension portion.

5. The spreader according to any of the claims 1-4, wherein the support part comprises a hook part protruding from an end of the second end, the hook part having a support surface for supporting the object to be lifted.

6. The spreader according to claim 5, wherein the support surface has positioning slots for carrying the object to be lifted.

7. The spreader according to claim 5, wherein the at least two booms are symmetrically arranged along a symmetry plane of the spreader, the protruding directions of the hooks on the same side of the symmetry plane are the same, and the protruding directions of the hooks on one side of the symmetry plane are opposite to the protruding directions of the hooks on the other side of the symmetry plane.

8. The spreader of any one of claims 1 to 4, wherein the spreader comprises a mounting frame and a sling, the sling being connected to one side of the mounting frame and the sling being connected to the other side of the mounting frame.

9. The spreader of claim 8, wherein the mounting frame comprises two longitudinal beams and at least two cross beams, each cross beam being connected between two of the longitudinal beams, the slings being connected to the longitudinal beams, and the boom being movably connected to the cross beams.

10. The spreader of claim 9, wherein the mounting frame further comprises reinforcing ribs connecting the cross beams and the side beams.

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