CN215798117U - Portable crane that stability is high - Google Patents

Abstract

The utility model provides a portable crane with high stability, belongs to the technical field of cranes, and is used for solving the technical problem that the conventional portable crane is poor in stability. The winding device comprises a base, wherein an upright post is fixed at the upper end of the base, a cross beam is fixed at the upper end of the upright post, a driving motor is installed on the cross beam, a winding wheel is fixed on an output shaft of the driving motor, a steel wire rope is wound on the winding wheel, the other end of the steel wire rope is fixed on the lower surface of the cross beam, a movable pulley is arranged on the steel wire rope, a lifting hook is hinged at the lower end of the movable pulley, a shell is slidably sleeved on the upright post, a cross rod is fixed at the side end of the shell, and the end part of the cross rod is connected with the movable pulley; the utility model prevents the lifting hook from shaking, increases the stability of the crane and improves the safety of the crane; the lifting hook is automatically separated according to the height of the heavy object, so that the lifting hook is conveniently hooked on the heavy object, and the operation convenience is improved; sliding friction between the shell and the upright column is converted into rolling friction, so that friction force is reduced, abrasion is reduced, and equipment is prevented from being locked.

Description

Portable crane that stability is high

Technical Field

The utility model belongs to the technical field of cranes, and relates to a portable crane, in particular to a portable crane with high stability.

Background

The crane belongs to a hoisting tool, in particular to a tool for intermittently working and lifting heavy objects. After the lifting appliance takes materials, a plurality of cranes start to vertically or vertically and horizontally work, unload the materials after arriving at a destination, and then move to a material taking place in an empty way to complete a work cycle, and then carry out second lifting. Generally, the crane operator takes, transports and unloads the materials in sequence, and the operation of each corresponding mechanism is intermittent.

The most commonly used portable crane at present uses the rope to lift the heavy object, then transports, and the removal of crane may drive the heavy object and rock in the transportation, because the rope is longer, and the heavy object rocks and may lead to crane focus unstability, and serious probably emptys, and the heavy object rocks and also does not do benefit to operating personnel and removes the crane in addition.

Based on this, we have designed a portable crane that has high stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a portable crane with high stability, which aims to solve the technical problems that: how to improve the stability of the portable crane.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a portable crane that stability is high, the on-line screen storage device comprises a base, the lower extreme of base is fixed with a plurality of brake universal wheels, the upper end of base is fixed with the stand, the upper end of stand is fixed with the crossbeam, install driving motor on the crossbeam, be fixed with the rolling wheel on driving motor's the output shaft, the rolling takes turns to around being equipped with wire rope, wire rope's the other end is fixed at the crossbeam lower surface, and be equipped with the movable pulley on the wire rope, the lower extreme of movable pulley articulates there is the lifting hook, the cover that slides on the stand is equipped with the casing, and the side of casing is fixed with the horizontal pole, the tip and the movable pulley of horizontal pole are connected, be fixed with the battery box on the base, be provided with automatically controlled ware and battery in the battery box, automatically controlled ware, battery and driving motor electric connection.

The end of the cross rod is fixed with a U-shaped block, the two ends of the U-shaped block are both fixed with clamping pieces, the two ends of the rotating shaft of the movable pulley are fixed with supporting rods, and the supporting rods are located inside the clamping pieces.

Structure more than adopting, the movable pulley can the downstream for branch breaks away from with the fastener, breaks away from the back, makes things convenient for operating personnel to remove lifting hook, is convenient for collude lifting hook on the heavy object, reduces the operation degree of difficulty.

The stand side is seted up a plurality of equidistant distribution's pinhole, and the pinhole slope sets up, and detachable inserts in one of them pinhole and is equipped with the spacer pin, and the end fixing of spacer pin has solid fixed ring, and solid fixed ring ties through the connecting wire and connects in the outside of casing.

Structure more than adopting, the spacer pin can prevent that the casing from continuing the lapse, highly is the pinhole that highly is fit for with the spacer pin difference according to the height of heavy object, will break away from with the fastener automatically after the lifting hook descends to a take the altitude, does not need manual lifting horizontal pole convenient operation.

The inboard rotation of casing is connected with a plurality of dwang, and a plurality of dwang respectively with two relative sides counterbalance of stand.

Structure more than adopting, when the horizontal pole tip received ascending pulling force, drive the casing and rise, produce relative slip this moment between casing and the stand, the dwang can change sliding friction into rolling friction, reduces frictional force, reduces wearing and tearing, prevents to block and dies.

The electric bicycle is characterized in that a pushing frame is fixed on the stand column, a push rod is fixed on the pushing frame, anti-skidding handle sleeves are respectively fixed at two ends of the push rod, a controller is fixed on the push rod, a control button is arranged on the controller, and the controller is electrically connected with the electric controller.

By adopting the structure, the crane is convenient for operators to move through the pushing frame and the pushing rod.

Compared with the prior art, the portable crane with high stability has the following advantages:

1. the heavy object is hoisted by the driving motor, the winding wheel, the steel wire rope, the movable pulley, the lifting hook and the upright post, the lifting hook is prevented from shaking by the cross rod and the shell, the stability of the crane is improved, and the safety of the crane is improved;

2. the lifting hook is automatically separated according to the height of the heavy object through the clamping piece, the supporting rod, the limiting pin and the pin hole, so that the lifting hook is conveniently hooked on the heavy object, and the operation convenience is improved;

3. through the dwang, change the sliding friction between casing and the stand into rolling friction, reduce frictional force, reduce wearing and tearing, prevent that equipment card from dying.

Drawings

FIG. 1 is a schematic front side three-dimensional structure of the present invention;

FIG. 2 is an enlarged schematic view of the utility model at A in FIG. 1;

FIG. 3 is a rear perspective view of the present invention;

fig. 4 is a schematic sectional view of the pillar of the present invention.

In the figure: 1. a base; 2. braking the universal wheel; 3. a column; 4. a cross beam; 5. a drive motor; 6. a winding wheel; 7. a wire rope; 8. a movable pulley; 9. lifting a lifting hook; 10. a housing; 11. a cross bar; 12. a U-shaped block; 13. a fastener; 14. a strut; 15. a pin hole; 16. a spacing pin; 17. a fixing ring; 18. rotating the rod; 19. a pushing frame; 20. an anti-slip handle sleeve.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of 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 not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Please refer to fig. 1 to 4, this embodiment provides a portable crane with high stability, which includes a base 1, a plurality of brake universal wheels 2 are fixed at the lower end of the base 1, an upright column 3 is fixed at the upper end of the base 1, a cross beam 4 is fixed at the upper end of the upright column 3, a driving motor 5 is installed on the cross beam 4, a winding wheel 6 is fixed on an output shaft of the driving motor 5, a steel wire rope 7 is wound on the winding wheel 6, the other end of the steel wire rope 7 is fixed on the lower surface of the cross beam 4, a movable pulley 8 is arranged on the steel wire rope 7, a lifting hook 9 is hinged at the lower end of the movable pulley 8, a casing 10 is slidably sleeved on the upright column 3, a cross rod 11 is fixed at the side end of the casing 10, the end of the cross rod 11 is connected with the movable pulley 8, a battery box is fixed on the base 1, an electric controller and a storage battery are arranged in the battery box, and the electric controller, the storage battery and the driving motor 5 are electrically connected.

A U-shaped block 12 is fixed at the end part of the cross bar 11, clamping pieces 13 are fixed at the two ends of the U-shaped block 12, supporting rods 14 are fixed at the two ends of the rotating shaft of the movable pulley 8, and the supporting rods 14 are positioned inside the clamping pieces 13; the movable pulley 8 can move downwards, so that the supporting rod 14 is separated from the clamping piece 13, the lifting hook 9 can be conveniently moved by an operator after separation, the lifting hook 9 can be conveniently hooked on a heavy object, and the operation difficulty is reduced.

A plurality of pin holes 15 distributed at equal intervals are formed in the side end of the upright post 3, the pin holes 15 are obliquely arranged, a limit pin 16 is detachably inserted into one pin hole 15, a fixing ring 17 is fixed at the end part of the limit pin 16, and the fixing ring 17 is fastened on the outer side of the shell 10 through a connecting line; the limiting pin 16 can prevent the shell 10 from continuously sliding downwards, the difference of the limiting pin 16 is a pin hole 15 with proper height according to the height of a heavy object, and the lifting hook 9 can automatically separate from the clamping piece 13 after falling to a certain height without manually lifting the cross rod 11 for convenient operation.

A plurality of rotating rods 18 are rotatably connected to the inner side of the housing 10, and the plurality of rotating rods 18 respectively abut against two opposite side ends of the upright column 3; when the end of the cross rod 11 is pulled upwards, the shell 10 is driven to ascend, relative sliding is generated between the shell 10 and the upright post 3 at the moment, the rotating rod 18 can convert sliding friction into rolling friction, the friction force is reduced, abrasion is reduced, and blocking is prevented.

A pushing frame 19 is fixed on the upright post 3, a push rod is fixed on the pushing frame 19, anti-skid handle sleeves 20 are respectively fixed at two ends of the push rod, a controller is fixed on the push rod, a control button is arranged on the controller, and the controller is electrically connected with the electric controller; the crane is convenient for operators to move through the pushing frame 19 and the pushing rod, and the position of the controller is also convenient to operate.

In the present embodiment, the above fixing manners are all the most commonly used fixing and connecting manners in the art, such as welding, bolt connection, and the like; the above electrical components such as the driving motor 5, the electric controller, the storage battery, the controller and the like are all products in the prior art, and can be directly purchased and used in the market, and the specific principle is not repeated.

The working principle of the utility model is as follows:

according to the height of the heavy object, the spacing pin 16 difference is in the pin hole 15 which is highly suitable, when the lifting hook 9 descends to a certain height, the shell 10 is blocked by the spacing pin 16, the lifting hook 9 and the movable pulley 8 continue to descend, the supporting rod 14 can automatically separate from the clamping piece 13, then the lifting hook 9 is hooked on the heavy object by an operator, then the winding wheel 6 is driven by the driving motor 5 to rotate, the movable pulley 8 and the lifting hook 9 ascend and lift the heavy object, the heavy object is lifted to a certain height, the supporting rod 14 is clamped into the clamping piece 13, the transverse rod 11 can synchronously ascend along with the movable pulley 8 at the moment, relative sliding is generated between the shell 10 and the upright post 3 at the moment, the rotating rod 18 can convert the sliding friction into rolling friction, the friction force is reduced, the abrasion is reduced, the clamping is prevented, at the moment, the transverse rod 11 can prevent the movable pulley 8 from sliding, and the stability of the crane is improved.

In conclusion, the heavy objects are hoisted by the driving motor 5, the winding wheel 6, the steel wire rope 7, the movable pulley 8, the lifting hook 9 and the upright post 3, and the lifting hook 9 is prevented from shaking by the cross rod 11 and the shell 10, so that the stability of the crane is improved, and the safety of the crane is improved;

through the clamping piece 13, the supporting rod 14, the limiting pin 16 and the pin hole 15, the lifting hook 9 is automatically separated according to the height of the heavy object, so that the lifting hook 9 is conveniently hooked on the heavy object, and the operation convenience is improved;

by rotating the lever 18, the sliding friction between the housing 10 and the column 3 is converted into rolling friction, so that the friction force is reduced, the abrasion is reduced, and the equipment is prevented from being locked.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (5)

1. The utility model provides a portable crane that stability is high, including base (1), a serial communication port, the lower extreme of base (1) is fixed with a plurality of brake universal wheels (2), the upper end of base (1) is fixed with stand (3), the upper end of stand (3) is fixed with crossbeam (4), install driving motor (5) on crossbeam (4), be fixed with wind-up pulley (6) on the output shaft of driving motor (5), wind-up pulley (6) is gone up and is equipped with wire rope (7), the other end of wire rope (7) is fixed at crossbeam (4) lower surface, and be equipped with movable pulley (8) on wire rope (7), the lower extreme of movable pulley (8) articulates there is lifting hook (9), sliding sleeve is equipped with casing (10) on stand (3), and the side of casing (10) is fixed with horizontal pole (11), the tip and the movable pulley (8) of horizontal pole (11) are connected, be fixed with the battery box on base (1), an electric controller and a storage battery are arranged in the battery box, and the electric controller, the storage battery and the driving motor (5) are electrically connected.

2. The high-stability portable crane according to claim 1, wherein a U-shaped block (12) is fixed at the end of the cross bar (11), clamping pieces (13) are fixed at both ends of the U-shaped block (12), a supporting rod (14) is fixed at both ends of the rotating shaft of the movable pulley (8), and the supporting rod (14) is located inside the clamping pieces (13).

3. The portable crane with high stability as claimed in claim 1, wherein a plurality of pin holes (15) are formed at the side end of the upright column (3) and are distributed at equal intervals, the pin holes (15) are arranged obliquely, a limit pin (16) is detachably inserted into one of the pin holes (15), a fixing ring (17) is fixed at the end of the limit pin (16), and the fixing ring (17) is fastened to the outer side of the casing (10) through a connecting line.

4. The high stability portable crane according to claim 1, wherein a plurality of turning rods (18) are rotatably connected to the inner side of the housing (10), and the plurality of turning rods (18) respectively abut against two opposite side ends of the upright column (3).

5. The portable crane with high stability as claimed in claim 1 or 2, wherein the upright column (3) is fixed with a pushing frame (19), the pushing frame (19) is fixed with a push rod, the two ends of the push rod are respectively fixed with an anti-slip handle sleeve (20), the push rod is fixed with a controller, the controller is provided with a control button, and the controller is electrically connected with the controller.

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