CN210236918U

CN210236918U - Crane with a movable crane

Info

Publication number: CN210236918U
Application number: CN201920637936.3U
Authority: CN
Inventors: Qingbiao Yang; 杨清标
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-04-03
Anticipated expiration: 2029-05-06

Abstract

The utility model provides a crane, including a centre gripping positioner, along one transversely wear to establish a cantilever of this centre gripping positioner and be located an assembly pulley of this cantilever leading edge, and a coaster in this cantilever of installing that can shift, and be used for fixing a position the last supporting positioning device of this cantilever, a steel cable is around establishing the assembly pulley at this cantilever leading edge, this coaster leading edge sets up a pothook, this steel cable of this pothook alignment, perhaps set up a stop group at the cantilever leading edge, therefore when steel cable one end hoists the heavy object to the floor outside in house, can be in order to utilize the aversion operation of coaster, and can be indoor with the heavy object immigration of hoisting this floor, reach and conveniently hoist and remove the indoor practical efficiency of heavy object entering house floor.

Description

Crane with a movable crane

Technical Field

The utility model relates to a crane especially indicates one kind and can lift and move into indoor hoist structure of arbitrary floor in house with ground heavy object.

Background

Various structures of high-rise hangers and cranes capable of carrying articles up and down are known, which are provided with various types of clamping assemblies for clamping and positioning a cantilever on a parapet of a top floor so that the cantilever protrudes out of the parapet, and a steel cable capable of sliding up and down is arranged at the front end of the cantilever, one end of the steel cable is provided with a hook, and the other end of the steel cable is connected with a hoisting rotary power device. Thus, the weight on the ground can be hung on the lifting hook of the steel cable, then the lifting rotary power device on the ground is started to pull the steel cable, the weight is lifted to the top floor position, and the suspension arm is rotated to the top floor, so that the weight is lifted off the ground and placed on the top floor to be lifted off. With the progress of the times, various improved structures of high-rise hangers and cranes have been continuously innovated, such as the taiwan patent document No. 114486 "improvement of base structure of high-rise hanger", which mainly comprises a foot rest, a lever and other elements, the foot rest is in an inverted L shape, the top of the lever is pivoted to the outside of the top surface of the foot rest, so that the base composed of the foot rest and the lever is spanned on the top wall of the building, the top end of the lever is provided with a sleeve for the suspension arm to be connected, when in use, the suspension arm hangs goods, and the bottom of the ejector rod is provided with a stopper which can be clamped on the wall due to the lever action, so that the goods hanging action can be smoothly carried out.

For example, taiwan patent document No. M494158 "mechanically-driven boom" includes a vertical column, a cantilever, a slide carriage and a driving device, wherein the vertical column is used to be vertically erected on a building roof, the cantilever is transversely disposed, one end of the cantilever is fixedly connected to the vertical column, the other end of the cantilever extends to the outside of a short wall around the building roof, the slide carriage is mounted on the cantilever, and the driving device is connected to the slide carriage and can drive the slide carriage to slide back and forth on the cantilever. And a pulley for hanging heavy objects is installed on the sliding seat, so that the worker can control the driving device to make the pulley and the sliding seat move together along the cantilever towards the direction close to or away from the low wall, thereby achieving the effect of simple operation.

The structure of the high-rise hanging bracket and the crane can achieve the aim of carrying heavy objects in a labor-saving way by hanging the heavy objects from the ground to each top floor. However, when the decoration work is performed on floors on different floors, the floor may not be used because of the situation that the short wall is not available for holding and erecting. Or, because the two sides of each layer of window which is not the top floor are all walls, even if the high-rise hanging bracket and the hoisting frame in the above form can be arranged on the short wall of the window, the existing outer wall can block the rotation of the cantilever, and the cantilever for hoisting the heavy object can not be rotated into the floor of the floor, so the structure of the common high-rise hanging bracket and the crane is only suitable for hoisting the heavy object on the ground to the top floor of the building, and the heavy object on the ground can not be hoisted and moved into each floor chamber of the house, thereby causing the inconvenience of construction and material taking, and certainly needing to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the crane is provided for solving the technical problems in the prior art.

To solve the problem, the utility model provides a:

a crane, comprising:

a clamping and positioning device, comprising a base, a first part and a second part which are combined on the base and are relatively separated, wherein the base comprises an accommodating space which extends along a transverse hollow direction and a slot communicated with the accommodating space by the surface of the base, a clamping space is formed between the first part and the second part, the first part comprises a positioning piece which can move back and forth towards the second part, the clamping space is used for accommodating a cross beam of a house, and when the positioning piece moves towards the side surface of the cross beam and tightly abuts against the side surface of the cross beam, the base clamps and positions the cross beam;

the cantilever comprises a first end, a second end and a hollow channel penetrating through the first end and the second end, the cantilever comprises a through groove communicated with the hollow channel, two wing plates are formed on two sides of the through groove, the through groove is aligned with the cutting groove of the base, the first end and the second end of the cantilever are positioned on the outer side of the base, and the first end of the cantilever extends out of the house through an opening of the outer wall of the house;

the pulley block is fixedly arranged at the first end of the cantilever and comprises a pulley frame, a first pulley and a second pulley which are separated from each other are pivoted on the pulley frame, the pulley frame is arranged at the first end of the cantilever, the pulley block further comprises a steel cable, one end of the steel cable is connected with a rotary power device on the ground, the other end of the steel cable is wound on the first pulley of the pulley block and penetrates through the space between the first pulley and the second pulley to be suspended downwards, and a lifting hook is arranged at the tail end of the other end of the steel cable;

the pulley is movably arranged in the hollow channel of the cantilever and comprises a frame, the frame comprises a plurality of wheels, the wheels can slide on two side plates of the cantilever, the frame comprises a carriage, two ends of the carriage are respectively provided with a hook and a hole, the carriage is aligned with the through groove of the cantilever, the hook and the hole extend out of the outside of the through groove of the cantilever along with the carriage, and the hook faces the pulley block and is aligned with the surface of the suspended downward steel cable;

the supporting and positioning device comprises a first supporting pipe and a second supporting pipe which are telescopically sleeved together, the first supporting pipe comprises a bottom end and a top end which are separated, a rotary sleeve capable of rotating and lifting is screwed on the top end, the second supporting pipe comprises a first end and a second end which are separated, the first end is sleeved on the top end of the first supporting pipe and is abutted against the rotary sleeve, the surface of the second supporting pipe comprises a fixed frame, and the fixed frame is combined with the second end of the cantilever;

when the bottom end of the first supporting pipe is abutted against a floor of the house, the second end of the second supporting pipe is abutted against the lower portion of a ceiling of the house, the cantilever extends out of the outer wall of the house, a weight on the ground is hung by the lifting hook of the steel cable, the rotary power device on the ground is started to lift the steel cable to the outer side of the opening of the outer wall of the house, the rotary power device is stopped, the pulley is pushed to move towards the steel cable, the clamping hook of the pulley is made to contact with the steel cable and hook the steel cable, one end of the hook rod is then used for hooking the hole of the carriage and pulling the pulley to return, and therefore the weight lifted by the steel cable can be moved into the house along with the pulley passing through the opening of the outer wall of the house.

The crane is characterized in that the outer diameter of the top end of the first supporting pipe is larger than or equal to the inner diameter of the first end of the second supporting pipe, and the top end surface of the first supporting pipe is provided with a threaded portion, so that the first end of the second supporting pipe is telescopically sleeved with the top end of the first supporting pipe, and the second supporting pipe can be pushed to telescopically displace relative to the first supporting pipe by rotating the rotating sleeve.

The first part side of the clamping and positioning device comprises a square frame, a positioning piece is screwed in the square frame towards the second part, the positioning piece comprises a chuck plate and a shifting lever which are separated from two ends, and when the positioning piece moves towards the side face of the cross beam and tightly abuts against the side face of the cross beam, the chuck plate can abut against the side face of the cross beam.

The second part of the clamping and positioning device comprises a side wing plate positioned on the outer surface, a butting piece which is perpendicular to the positioning piece and can move up and down is arranged on the side wing plate, a butting plate is arranged at the tail end of the butting piece, and the butting piece can move towards the surface of the cantilever until the butting plate butts against the surface of the cantilever.

The crane is characterized in that a positioning restraining piece capable of adjusting the height position is arranged on the surface of the second supporting tube, the positioning restraining piece comprises a gap and a loosening piece arranged in the gap, a fixing piece is fixedly arranged and positioned on the positioning restraining piece, one end of the fixing piece is combined and positioned with the fixed frame, and the height position is adjusted by the positioning restraining piece, so that the fixed frame can be aligned with the second end of the cantilever.

A crane, comprising:

the clamping and positioning device comprises a base and a clamping part which is fixedly arranged on the base and used for clamping an object, wherein the base comprises a through cutting groove;

the cantilever is sleeved with the base of the clamping and positioning device and comprises a first end and a second end;

a pulley block fixed to the first end of the boom, the pulley block comprising a steel cable that can be pulled, one end of the steel cable allowing a weight to be suspended;

the telescopic supporting and positioning device is combined with the second end of the cantilever and comprises a first supporting pipe and a second supporting pipe which can move relative to the first supporting pipe, the first supporting pipe is abutted against a floor, the second supporting pipe is abutted against a ceiling, and the supporting and positioning device and the clamping and positioning device support the first end of the cantilever to be suspended;

a coaster can combine between the first end and the second end of this cantilever along this cantilever slidable, and the coaster is including can catching on a pothook of steel cable, and when the pothook caught on the displacement of steel cable down the coaster toward being close to the second end, the heavy object was toward the direction displacement that is close to the second end.

The hoist, wherein, support positioner and include a swivel sleeve, first stay tube including leaning on a bottom and a top in the floor, first stay tube is including forming the outer peripheral face and extending to a screw thread portion on top, the internal diameter of second stay tube is greater than the external diameter on the top of first stay tube, the top cover of first stay tube is established in the first end of second stay tube, the swivel sleeve spiro union is established on screw thread portion and the first end of second stay tube leans on the swivel sleeve, rotates the swivel sleeve and can promote the flexible displacement of second stay tube relative first stay tube.

The crane described above, wherein the cantilever includes a hollow channel extending along its axial direction and a through groove extending from the lower surface to the hollow channel, the trolley is slidably accommodated in the hollow channel, the trolley includes a carriage extending outside the cantilever through the through groove, the hook is disposed on the carriage, and the carriage includes a hole capable of being hooked and pulled.

A crane, comprising:

the gear stopping group is arranged on the cantilever and is adjacent to the first end of the cantilever, the gear stopping group comprises a hook plate taking one end as a rotating center and a pressing plate elastically abutted against the hook plate, and the hook plate comprises an embedding groove;

a return wheel pivoted to the cantilever and adjacent to the second end of the cantilever;

a pulley block fixed at the first end of the boom, the pulley block comprising a first pulley and a steel cable capable of being pulled, the steel cable passing through the first pulley and the return wheel and having one end allowing for the suspension of a weight, the other end of the steel cable being connected to a rotary power unit on the ground;

a support positioning device supported between a ceiling and a floor, the second end of the cantilever being coupled to the support positioning device;

and the tackle can be combined between the first end and the second end of the cantilever in a sliding way along the cantilever and comprises a rotating wheel and a stop lever, the steel cable firstly bypasses the first pulley and the return rotating wheel and then bypasses the rotating wheel, when the stop lever of the tackle is hooked by the hook plate, the rotating power device furls the steel cable tackle to keep still, and when the hook plate releases the stop lever, the rotating power device furls the steel cable, and the tackle moves towards the second end close to the cantilever.

The crane, wherein, stop the fender group and include the curb plate of location in this cantilever side, this curb plate includes a pin joint portion and a dog, this hook plate includes a hook portion that contains a hole, this clamp plate one end forms a convex part, a first pin joint piece wears to establish the convex part of this clamp plate and wears to establish a torsion spring and the pin joint portion of locating this curb plate, a second pin joint piece wears to establish this hook plate one end and pivot and locates this curb plate, this clamp plate elasticity supports and leans on in the hook plate downside, this hook plate upper edge receives this dog to stop.

The crane, wherein, support positioner and include a first stay tube and a second stay tube that telescopically cup joints together, this first stay tube is including a bottom and a top that separate, a rotatory cover of rotatable lift is established to this top spiral shell, this second stay tube is including a first end and a second end that separate, the top of this first stay tube is located to this first end cover and is leaned on in this rotatory cover, this second stay tube surface includes a fixed frame, this fixed frame is held with the second of cantilever and is combined.

The utility model has the advantages of, can rely on the centre gripping positioner to fix a position the base centre gripping on the crossbeam in house, and end with supporting positioner this cantilever of location, make the cantilever of hoist can be stable install in each floor below the house top-building indoor, and rely on the pothook of the coaster that sets up in the cantilever around the steel cable who establishes on the assembly pulley of the first end of cantilever, perhaps set up a stop gear group at the cantilever leading edge, make subaerial rotary power device start to roll up when steel cable hoists the wall opening of heavy object to house outside, the aversion operation of usable coaster, and in this floor of heavy object immigration that will hoist, reach and conveniently hoist and remove the indoor practical efficiency of heavy object entering house floor.

The present invention will be more clearly understood from the detailed description of illustrative embodiments of the invention given in conjunction with the drawings.

Drawings

Fig. 1 is an exploded perspective view of the clamping and positioning device, the cantilever, the pulley block and the pulley of the present invention.

Fig. 2 is an exploded perspective view of the first and second support tubes of the supporting and positioning device of the present invention.

Fig. 3 is a schematic perspective view of the clamping and positioning device of the present invention combined with the cantilever and the supporting and positioning device to be combined.

Fig. 4 is a cross-sectional view of the first type crane of the present invention installed on an indoor cross beam.

Fig. 5 is an enlarged view of the clamping and positioning device of fig. 4 clamped to the indoor cross beam.

Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 4.

Fig. 7 is an enlarged view of the cantilever, the pulley and the pulley block surrounded by a circle in fig. 4.

FIG. 8 is an enlarged view of the engagement portion of the first and second support tubes of FIG. 4 encircled by a circle to support the positioning device.

Fig. 9 is a schematic view of an embodiment of the present invention for lifting a heavy object to the outside of the wall opening of a floor of a house.

Fig. 10 is a diagram of an embodiment of the invention in which the suspended heavy object pulls the steel cable into a room of a certain floor of the house by means of the hook of the pulley.

Fig. 11 is an exploded perspective view of another embodiment of the present invention with a stop set on the side of the arm.

Fig. 12 is an appearance diagram of a second type of crane of the present invention, in which different types of pulleys and cantilevers are provided with a stop group and a stop group, and the stop group is arranged on an indoor beam and a heavy object is hoisted around a steel cable.

Fig. 13 is an enlarged view of the encircled portion of fig. 12.

Fig. 14 is a schematic diagram of the second type of crane according to the present invention, in which the tackle and the cantilever side of the crane are provided with a hook plate of a stop group to hook the stop lever.

Fig. 15 is a schematic view of a second type of crane according to the present invention, in which a stopping set is disposed on the tackle and the cantilever side and the hook plate is pulled open.

Fig. 16 is a schematic view of the second type of crane of the present invention, in which a stopping group is disposed on the tackle and the cantilever side and the crane moves into the room after lifting the heavy object.

Description of reference numerals: 10, a crane; 12, a crane; 20 clamping and positioning the device; 22 a base; 23 a clamping part; 24 a first portion; 26 a second portion; 28 clamping the space; 30, a block; 32 a positioning member; 34 a chuck; 36 a shift lever; 38 a housing space; 40, cutting grooves; 42 side wing plates; 44 a counter-fastener; 45, a butting plate; 46 a cantilever; 48 a first end; 50 a second end; 52 a hollow channel; 54 through grooves; 56 wing plates; 58 screw holes; 60 pulley blocks; 62 wheel frame; 64 a first pulley; 66 a second pulley; 68 a pulley; 69 a pulley; 70, a vehicle frame; 72 wheels; 74 carriage; 76 hooks; 78 holes; 80 supporting the positioning device; 81 a first support tube; 82 bottom end; 84 top end; 86 a threaded portion; 88, notching; 90 rotating the sleeve; 91 internal threads; 92 pushing the rotating rod; 94 a second support tube; 96 a first end; 98 a second end; 111 a hook rod; 113 positioning the bundle; 115 a fixing frame; 117 holes; 119 a loosening member; 131 steel cables; 133 a hook; 135 weight; 137 a fixing member; 139 screws; 151 ceiling; 153 cross beams; 155 a floor; 157 the outer wall of the house; 159 an opening; 171 return wheel; 173 wheel seat; 175 a rotating wheel; 177 a stop lever; 179 gear stop group; 191 side plates; 193 perforating; 195 a pivot joint part; 197 perforating; 199 stop dog; 311 a pressing plate; 313 convex parts; 315 a first pivot; 317 a torsion spring; 319 hook plate; 331 caulking groove; 333 perforating; 335 a hook part; 337 holes; 339 second pivot member.

Detailed Description

It is to be expressly understood that all of the above-described figures are intended as illustrations of the basic teachings of the invention, and that all of the extensions which constitute the preferred embodiments of the present invention, in terms of number, position, relationship, and size, have been given the full range of skill in the art to which the teachings of the present invention have been applied. In addition, after reading and understanding the education of the utility model, the exact size and the change of the size proportion of the specific strength, weight, strength and the like also belong to the skill in the industry.

Referring to fig. 1, 2, 3 and 4, a first type of crane 10 (fig. 3) of the present invention comprises a clamp positioning device 20, a boom 46 passing through the clamp positioning device 20 in a transverse direction, a pulley block 60 at a front edge of the boom 46, a pulley 68 mounted displaceably in the boom 46 (fig. 1), and a support positioning device 80 (fig. 2 and 3) for positioning a tip of the boom 46, wherein the pulley block 60 comprises a steel cable 131 (fig. 4), and the steel cable 131 allows a weight 135 suspended on the ground to rise to an outside of an opening 159 (fig. 4) of an outer wall 157 of a house at each floor of the house and further allows the lifted weight 135 to be moved into each floor of the house by displacement of the pulley 68.

As shown in fig. 1, 4 and 5, the clamping and positioning device 20 includes a base 22 and a first portion 24 and a second portion 26 coupled to the base 22 and spaced apart from each other, wherein a clamping space 28 is formed between the first portion 24 and the second portion 26. The base 22 further includes a receiving space 38 extending along a transverse direction and a slot 40 penetrating into the receiving space 38. The first portion 26 includes two blocks 30, the two blocks 30 include two positioning members 32 capable of moving back and forth toward the second portion 26, and the two positioning members 32 can be screws and are screwed on the blocks 30 toward the second portion 26. Each positioning member 32 includes a clamping plate 34 and a shifting lever 36 at two ends, the clamping plate 34 is located in the clamping space 28 of the clamping and positioning device 20, and the shifting lever 36 is located outside the first portion 24. The holding space 28 is used to fit over a cross member 153 of a ceiling 151 of a floor of the house (as shown in fig. 4 and 5). If the shift lever 36 is rotated to screw the two positioning members 32 toward the lateral side of the beam 153, the two chucks 34 of the two positioning members 32 are abutted against the lateral side of the beam 153, so as to clamp and position the base 22 of the clamping and positioning device 20 on the beam 153. If the clamp positioning device 20 is to be removed, the clamp positioning device 20 can be released by rotating the two shift levers 36 in the opposite direction. The second portion 26 of the clamping and positioning device 20 further includes a lateral wing plate 42 located on the outer surface of the second portion 26, a supporting member 44 is disposed on the lateral wing plate 42 and is substantially perpendicular to the two positioning members 32 and can move up and down, and a supporting plate 45 is disposed at the end of the supporting member 44. The support member 44 can be a screw threaded on the side wing 42. The abutment member 44 can move toward the surface of the cantilever 46 until the abutment plate 45 abuts against the surface of the cantilever 46 (as shown in FIG. 5).

Referring to fig. 1, 3 and 4, the cantilever 46 is disposed in the accommodating space 38 of the base 22, and the cantilever 46 includes a first end 48 and a second end 50 spaced apart from each other, and a hollow passage 52 extending through the first end 48 and the second end 50. The boom 46 includes a channel 54 communicating with the hollow passage 52, two wings 56 are formed on both sides of the channel 54, the channel 54 is aligned with the slot 40 of the base 22, the first end 48 and the second end 50 of the boom 46 are located outside the base 22, and the first end 48 of the boom 46 extends out of a room of the room through an opening 159 of an outer wall 157 of the room (as shown in fig. 4).

As shown in fig. 4 and 6, a pulley block 60 is mounted at the first end 48 of the boom 46 at the leading edge of the boom 46. the pulley block 60 includes a frame 62, and the frame 62 is pivotally connected to a first pulley 64 and a second pulley 66 spaced apart from each other. The steel cable 131 is connected to a rotary power device (various rotary power devices are known and not shown) on the ground at one end, and is suspended downward at the other end by passing through the first pulley 64 of the pulley block 60 and between the first pulley 64 and the second pulley 66, and a hook 133 is provided at the other end suspended downward (as shown in fig. 4). And, the trolley 68 is displaceably mounted in the hollow channel 52 of the cantilever 46, the trolley 68 includes a frame 70, the frame 70 includes a plurality of wheels 72, the plurality of wheels 72 are slidable on the wing 56 of the cantilever 46 (as shown in fig. 6). The carriage frame 70 further includes a carriage plate 74, two ends of the carriage plate 74 are respectively provided with a hook 76 and a hole 78, the carriage plate 74 is aligned with the through slot 54 of the cantilever 46 (as shown in fig. 6), the hook 76 and the hole 78 extend out of the through slot 54 of the cantilever 46 along with the carriage plate 74, and the hook 76 faces the pulley block 60 and is aligned with the downwardly suspended steel cable 131 (as shown in fig. 7).

Referring to fig. 2, 3, 4 and 8, the supporting and positioning device 80 includes a first supporting tube 81 and a second supporting tube 94 that are telescopically sleeved with each other. The first supporting tube 81 includes a bottom end 82 and a top end 84 which are spaced apart from each other, a threaded portion 86 is disposed on the surface of the top end 84, and the first supporting tube 81 further includes two symmetrical notches 88 formed by cutting through the threaded portion 86. The second support tube 94 includes a first end 96 and a second end 98 spaced apart. The top end 84 of the first support tube 81 has an outer diameter slightly greater than or equal to the inner diameter of the first end 96 of the second support tube 94. The screw portion 86 of the first supporting tube 81 is screwed with a rotating sleeve 90, the rotating sleeve 90 includes an internal thread 91 screwed with the screw portion 86 (as shown in fig. 8), and two pushing rods 92 are disposed around the rotating sleeve 90. The first end 96 of the second support tube 94 abuts against the rotary sleeve 90, and the rotary sleeve 90 is pushed by the two pushing rods 92, so that the rotary sleeve 90 can be displaced along the axial direction of the first support tube 81 and further the second support tube 94 is pushed to be telescopically displaced relative to the first support tube 81. The first and

second support pipes

81, 94 thus retractable can be firmly engaged between the ceiling 151 and the floor 155 of the house (as shown in fig. 4).

In addition, the surface of the second support tube 96 includes a fixed frame 115, which is fastened to a positioning fastener 113 (as shown in fig. 2 and 3) disposed on the surface of the second support tube 94, the positioning fastener 113 includes a gap and a fastening member 119 disposed in the gap for fastening the gap. And a fixing member 137 is fixedly positioned on the positioning fastener 113 (as shown in fig. 4), one end of the fixing member 137 is combined with the fixing frame 115 for positioning, and the height position of the fixing member 113 on the second support tube 94 is adjusted, so that the fixing frame 115 can be aligned with the second end 50 of the cantilever 46, and the second end 50 of the cantilever 46 can be inserted and positioned. And a hole 117 is formed at the side of the fixing frame 115, and a screw hole 58 (as shown in fig. 3) aligned with the hole 117 is formed at the second end 50 of the cantilever 46, so that a screw 139 can be inserted through the hole 117 of the fixing frame 115 and screwed into the screw hole 58 of the cantilever 46 for fixing.

For convenience of description, it is assumed that the crane 10 of the first type of the present invention is installed in one of the floors of a house. Referring to fig. 9 and 10, after the supporting and positioning device 80 is erected, the rotating sleeve 90 is rotated to extend the first and second supporting

pipes

81 and 94 until the bottom end 82 abuts against the floor 155 and the second end 98 abuts against the ceiling 151, in other words, the rotating sleeve 90 is rotated to force the first and second supporting

pipes

81 and 94 between the ceiling 151 and the floor 155, the clamping space 28 of the clamping and positioning device 20 receives the cross beam 153 of the ceiling 151, the two positioning members 32 are rotated to make each clamping plate 34 engage with the second portion 26 to abut against the cross beam 153, the second end 50 of the cantilever 46 is sleeved with the fixing frame 115 and is screwed into the screw hole 58 and the through hole 117 by a screw 139, so that the cantilever 46 of the whole crane 10 can be stably installed indoors, and the first end 48 of the cantilever 46 can be extended out of the room (as shown in fig. 4).

To suspend the outdoor heavy object to the room, the rotating power device is operated to release the steel cable 131 to make the hook 133 approach and hook the heavy object 135, the rotating power device is further operated to wind the steel cable 131 to lift the heavy object to the floor where the heavy object is located until the height of the heavy object 135 is approximately the same as the height of the opening 159 of the outer wall 157 of the room (as shown in fig. 9, the heavy object 135 is still outside), further, the indoor worker uses a hook rod 111 to hook the hole 78 of the pulley 68 and pushes the hook 76 of the pulley 68 to hook the steel cable 131, and then the rotating power device is operated to release the steel cable 131 while pulling the pulley 68 to displace toward the second end 50 of the cantilever 46, the weight 135 can be dragged by the trolley 68 in a state where the jib 46 cannot rotate and be displaced from the outside to the inside (indoor) of the floor where the crane 10 is located, and continued operation of the rotary power unit to release the steel cable 131 enables the weight 135 to be placed on the floor 155 in the room.

The above operation is to clamp and position the base 22 on the beam 153 of the house by means of the clamping and positioning device 20, and position the end of the boom 46 by means of the supporting and positioning device 80, so that the boom 46 of the crane 10 can be stably installed in each floor room of the house, and by means of the hook 76 of the trolley 68 arranged in the boom 46 facing the steel cable 131 wound on the pulley block 60 at the first end 48 of the boom 46, when the rotary power device on the ground starts to lift the weight from the steel cable 131 to the outside of the opening 159 of the outer wall 157 of the house, the trolley 68 can be pushed to move towards the steel cable 131, and the hook 76 of the trolley 68 contacts the steel cable 131 and hooks the steel cable 131, and then the hook rod 111 hooks the carriage 74 to pull the trolley 68 back, so that the weight 135 lifted by the steel cable 131 can enter the house room along with the trolley 68.

Referring to fig. 11, 12, 13, 14, 15 and 16, a second type crane 12 according to the present invention is shown. The second type of crane 12 is similar to the first type of crane 10 in that it includes a clamp positioning device 20, a boom 46 extending transversely through the clamp positioning device 20, a pulley block 60 at the front edge of the boom 46, and a retractable support positioning device 80 (shown in fig. 12) for positioning the distal end of the boom 46. The second version of the crane 12 differs from the first version of the crane 10 in that it includes a trolley 69 displaceably mounted in the boom 46 (as shown in fig. 11 and 12) and a stop block 179 on the side of the boom 46 adjacent the first end 48.

The clamping and positioning device 20 of the second type of crane 12 (shown in fig. 12) of the present invention also includes a base 22 and a clamp portion 23 fixed on the base 22 for clamping the object, and the base 22 includes a slot 40 therethrough. The cantilever 46 is received in the base 22 of the clamp positioning device 20, and the cantilever 46 includes a first end 48 and a second end 50 spaced apart from each other, and a hollow passage 52 extending through the first end 48 and the second end 50. The cantilever 46 includes a channel 54 (shown in fig. 11) that communicates with the hollow passage 52, and two wings 56 are formed on opposite sides of the channel 54, the channel 54 being aligned with the slot 40 of the base 22.

As shown in fig. 11 and 12, the gear-stop set 179 is disposed on the cantilever 46 and adjacent to the first end 48 of the cantilever 46 (as shown in fig. 11). The stop set 179 comprises a side plate 191 positioned at a side of the cantilever 46, the side plate 191 comprises a pivot portion 195, a stopper 199 and a through hole 193, and the pivot portion 195 is provided with a through hole 197. The stop set 179 further includes a hook plate 319 with one end as a rotation center, and a pressing plate 311 elastically abutting against the underside of the hook plate 319. The hook plate 319 includes a slot 331 therein, and one end of the hook plate 319 further includes a hook portion 335 having a hole 337, and the other end of the hook plate 319 includes a through hole 333. A protrusion 313 is formed at one end of the pressing plate 311, the protrusion 313 is located in the pivoting portion 195 of the side plate 191, and a first pivoting member 315 is disposed through the pivoting portion 195, the protrusion 313 and a torsion spring 317. And a second pivot 339 passing through the hole 337 at one end of the hook plate 319 and pivotally disposed in the through hole 193 of the side plate 191. Therefore, the pressing plate 311 is elastically abutted against the lower side of the hook plate 319, and the upper edge of the hook plate 319 is stopped and limited by the stopper 199. The first and

second pivots

315, 339 may be screws, pins, or shafts.

Referring to fig. 11 and 12, the second type of crane 12 of the present invention further includes a return wheel 171, the return wheel 171 is pivotally mounted to the boom 46 and adjacent to the second end 50 of the boom 46. And a pulley block 60 fixed at the first end 48 of the cantilever 46, wherein the pulley block 60 comprises a steel cable 131 capable of being pulled, one end of the steel cable 131 is provided with a hook 133, a heavy object 135 can be suspended by the hook 133, the steel cable 131 is wound around a first pulley 64 arranged on the pulley block 60 and around the return wheel 171, and the other end of the steel cable 131 is connected to a rotary power device on the ground.

The second version of the present invention further includes a support positioning device 80 that is retractable, the support positioning device 80 being coupled to the second end 50 of the boom 46. The supporting and positioning device 80 includes a first supporting tube 81 and a second supporting tube 94 capable of moving relative to the first supporting tube 81, the first supporting tube 81 is abutted against a floor 155, the second supporting tube 94 is abutted against a ceiling 151, and the supporting and positioning device 80 and the clamping and positioning device 20 support the first end 48 of the cantilever 46 in suspension.

The second version of crane 12 further comprises a trolley 69, the trolley 69 slidably coupled along the boom 46 between the first and second ends 48, 50 of the boom 46, the trolley 69 including a wheel mount 173 at one end, the wheel mount 173 pivotally receiving a wheel 175, and the trolley 69 including a stop 177 at the other end. The wheel 175 and the bar 177 extend outside the channel 54 of the arm 46. The pulley 175 provides the steel cable 131 to be wound around, and the stop bar 177 provides the pulley 69 to move to the stop set 179, that is, the insertion slot 331 of the hook plate 319 is inserted into the stop bar 177 of the pulley 69 (as shown in fig. 12, 13 and 14), so as to stop the pulley 69 and make it not move.

In the second type of crane 12, as shown in fig. 12 and 13, when the slot 331 of the hook plate 319 is engaged with the stop bar 177 of the trolley 69, the above-ground rotating power device is started to retract the steel cable 131, the trolley 69 is kept immovable at a position close to the first end 48 of the boom 46, the above-mentioned weight 135 is lifted by the retraction of the steel cable 131 until the weight 135 is lifted to the outside of the opening 159 of the outer wall 157 of the house corresponding to the floor, and then the steel cable 131 is stopped from being retracted by the rotating power device (as shown in fig. 12), further the indoor worker can pull down the hole 337 of the hook portion 335 by using the hook bar 111, so that the hook plate 319 can rotate around the second pivot 339, and the slot 331 of the hook plate 319 is disengaged from the stop bar 177, thereby the above-ground rotating power device can be started to retract the steel cable 131, and the trolley 69 can be displaced on the boom 46 toward the second end 50, the hoisted weights 135 can thus be moved into the respective floor chambers (as shown in fig. 16). After stopping winding the steel cable 131 and releasing the steel cable 131 to unload the weight 135, the pulley 69 is pushed by the hook rod 111 to move the pulley 69 toward the first end 48 of the cantilever 46, and when the pulley 69 is displaced until the stop rod 177 contacts the hook plate 319, the pressing plate 311 and the torsion spring 317, the stop rod 177 is inserted into the slot 331 of the hook plate 319 again, and the pulley 69 is positioned adjacent to the first end 48 of the cantilever 46 again, so that the next lifting operation of the weight 135 can be performed.

In the above operation, the base 22 is clamped and positioned on the cross beam 153 of the house by the clamping and positioning device 20, and the end of the cantilever 46 is positioned by the supporting and positioning device 80, so that the cantilever 46 of the crane 10 can be stably installed in each floor room of the house, and the pulley 69 can be moved by the pulley 69 when the rotating power device on the ground starts the hoisting steel cable 131 to hoist the weight to the outside of the opening 159 of the outer wall 157 of the house by means of the hook 76 of the pulley 68 arranged in the cantilever 46 facing the pulley block 60 at the first end 48 of the cantilever 46, so that the weight 135 hoisted by the steel cable 131 can enter the room along with the pulley 69.

Therefore, as can be clearly seen from the above detailed description, the present invention is characterized in that the base 22 is clamped and positioned on the cross beam 153 of the house by means of the clamping and positioning device 20, and a supporting and positioning device 80 is positioned at the tail end of the cantilever 46, so that the cantilever 46 of the crane can be stably arranged in each floor room below the top floor of the house, and by means of the steel cable 131 wound on the pulley block 60 facing the first end 48 of the cantilever 46 by means of the hook 76 of the tackle 68 provided in the cantilever 46, or the stop set 179 arranged at the position of the cantilever 46 adjacent to the first end 48 and the stop bar 177 on the trolley 69, so that when the rotary power device on the ground starts the hoisting steel cable 131 to hoist the heavy object out of the wall opening of the house, the displacement operation of the trolley 68 can be utilized, and the lifted weight 135 is moved into the room of the floor, so that the practical effect of conveniently lifting and moving the weight into the room of the floor of the house is achieved.

As described in the foregoing paragraphs, it will be apparent to those skilled in the art that many extensions, variations or changes can be easily made, for example, only one square frame 30 and one positioning member 32 can be screwed on the first portion 24 side of the clamping and positioning device 20, so that the positioning member 32 can be rotated to move toward the cross beam 153 and abut against the side surface of the cross beam 153, and the base 22 can be clamped on the cross beam 153 without providing two square frames 30 and two positioning members 32. Besides, the lateral wing plates 42, the abutting pieces 44 and the abutting plates 45 are not arranged outside the second part 26 of the clamping and positioning device 20, the cantilever 46 can be clamped by the first part 24, the positioning pieces 32 and the second part 26 of the clamping and positioning device 20 without being obstructed, and the fixing frame 115 supporting the positioning device 80 can provide stable suspension effect for the cantilever 46.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A crane, comprising:

2. The crane according to claim 1, wherein the outer diameter of the top end of the first support tube is greater than or equal to the inner diameter of the first end of the second support tube, and the top end surface of the first support tube is provided with a threaded portion, so that the first end of the second support tube is telescopically received in the top end of the first support tube, and the rotation of the rotating sleeve can push the second support tube to telescopically displace relative to the first support tube.

3. The crane as claimed in claim 1, wherein the first portion of the clamping and positioning device comprises a frame, a positioning member is screwed to the frame toward the second portion, the positioning member comprises a chuck plate and a lever separated from each other at two ends, and when the positioning member is displaced toward the beam side and abuts against the beam side, the chuck plate can abut against the beam side.

4. The crane according to claim 1, wherein the second portion of the clamping and positioning device comprises a lateral wing plate on the outer surface, the lateral wing plate is provided with a butting piece which is perpendicular to the positioning piece and can move up and down, the end of the butting piece is provided with a butting plate, and the butting piece can move towards the surface of the cantilever until the butting plate butts against the surface of the cantilever.

5. The crane according to claim 1, wherein the second support tube is provided with a positioning fastener on a surface thereof, the positioning fastener including a notch and a loosening member disposed in the notch, a fixing member is fixedly positioned on the positioning fastener, one end of the fixing member is fixedly coupled to the fixing frame, and the height position of the fixing member is adjusted by the positioning fastener so that the fixing frame can be aligned with the second end of the jib.

6. A crane, comprising:

7. The crane as claimed in claim 6, wherein the supporting and positioning device comprises a rotating sleeve, the first supporting tube comprises a bottom end and a top end abutting against the floor, the first supporting tube comprises a threaded portion forming an outer peripheral surface and extending to the top end, the inner diameter of the second supporting tube is larger than the outer diameter of the top end of the first supporting tube, the top end of the first supporting tube is sleeved in the first end of the second supporting tube, the rotating sleeve is screwed on the threaded portion, the first end of the second supporting tube abuts against the rotating sleeve, and the rotating sleeve can push the second supporting tube to move telescopically relative to the first supporting tube by rotating.

8. The crane as claimed in claim 6, wherein the boom includes a hollow channel extending axially along the boom and a through slot extending from the lower surface to the hollow channel, the trolley being slidably received in the hollow channel, the trolley including a carriage extending through the through slot outside the boom, the hook being provided on the carriage, the carriage including an aperture adapted to be hooked and pulled.

9. A crane, comprising:

10. The crane according to claim 9, wherein the stop set comprises a side plate positioned at a side of the cantilever, the side plate comprises a pivot portion and a stop, the hook plate comprises a hook portion having a hole, a protrusion is formed at an end of the pressure plate, a first pivot member penetrates through the protrusion of the pressure plate and the pivot portion penetrating through a torsion spring and pivotally mounted to the side plate, a second pivot member penetrates through an end of the hook plate and pivotally mounted to the side plate, the pressure plate elastically abuts against a lower side of the hook plate, and an upper edge of the hook plate is stopped by the stop.

11. The crane according to claim 9, wherein the support positioning device comprises a first support tube and a second support tube telescopically coupled together, the first support tube comprises a bottom end and a top end spaced apart from each other, the top end is screwed with a rotary sleeve capable of rotating and lifting, the second support tube comprises a first end and a second end spaced apart from each other, the first end is coupled to the top end of the first support tube and abuts against the rotary sleeve, the surface of the second support tube comprises a fixing frame coupled to the second end of the jib.

12. The crane according to claim 11, wherein the outer diameter of the top end of the first support tube is greater than or equal to the inner diameter of the first end of the second support tube, and the top end surface of the first support tube is provided with a threaded portion, so that the first end of the second support tube is telescopically received in the top end of the first support tube, and the rotation of the rotating sleeve can push the second support tube to telescopically displace relative to the first support tube.