CN113443568A

CN113443568A - Building construction crane

Info

Publication number: CN113443568A
Application number: CN202110508514.8A
Authority: CN
Inventors: 余北京
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-09-28

Abstract

The invention relates to the technical field of hoisting machinery, in particular to a building construction crane, which comprises a base, wherein a traction structure is arranged on the base; a telescopic structure is arranged inside the traction structure; the end part of the traction structure is provided with a hoisting structure; the hoisting structure is connected with a hanger structure; a winding structure is arranged between the hanger structure and the hoisting structure; a counterweight structure is arranged inside the base; a positioning structure is arranged between the counterweight structure and the base; can pull the hoist to article through traction structure, avoid the hawser to take place to break away from, can conveniently take off the hoist through extending structure, can carry out the adjustment of clamp distance as required through hoisting structure, can conveniently bind scattered panel through the hanger structure and fix, guarantee the stability of hoisting in-process, can control the length that the cable wire released through the roll-up structure, can carry out suitable adjustment to settling of counter weight through the counter weight structure, can guarantee the fixed of counter weight position through location structure, guarantee stability.

Description

Building construction crane

Technical Field

The invention relates to the technical field of hoisting machinery, in particular to a building construction crane.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The crane is widely applied in daily life, in the field of building construction, hoisting machines of various specifications are generally required to be used, and the hoisting equipment is greatly convenient for conveying building materials from a tower crane with large volume, namely a tower crane, to smaller mast type hoisting equipment.

However, in the case of a small-sized hoisting device generally used for transporting a small amount of building materials in a small area, it is difficult to remove a hoisted object when a hoisting device of the conventional type is used, and if a portion protruding from a floor where the device is installed is present, it is difficult to hoist a plurality of drums of mortar at the same time due to the limitation of a single hoist, and if a plurality of drums of mortar are hoisted at the same time, it is necessary to bind long plates or the like in advance by means of ropes, and there may be an unstable case even if the drums are bound, and on the other hand, the placement of a weight block for balancing the device cannot be changed in position according to a specific installation environment.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a building construction crane.

The technical scheme adopted by the invention for solving the technical problems is as follows: a building construction crane comprises a base, wherein a traction structure is arranged on the base; a telescopic structure is arranged inside the traction structure; a hoisting structure is arranged at the end part of the traction structure; the hoisting structure is connected with a hanger structure; a winding structure is arranged between the hanger structure and the hoisting structure; a counterweight structure is arranged inside the base; and a positioning structure is arranged between the counterweight structure and the base.

The traction structure comprises a winding drum, the winding drum is rotatably connected to the base, a motor is installed on the base, the end of the motor is fixedly connected with the winding drum, a cable is fixedly connected to the side face of the winding drum, a lifting beam is fixedly connected to the side face of the base, two rotating shafts are parallelly fixed to the side face of the lifting beam, guide rollers and two rotating shafts are connected to the rotating shafts, the side faces of the guide rollers are respectively inconsistent with the cable, a first guide wheel is rotatably connected to the end of the lifting beam, and the cable is slidably connected with the end of the lifting beam through the first guide wheel.

Specifically, extending structure includes the lead screw, the lead screw rotates to be connected in the inboard of lifting beam, threaded connection has the hoist and mount piece on the lead screw, the side roll connection of hoist and mount piece has the ball, the hoist and mount piece passes through ball sliding fit in lifting beam inboard, the tip of hoist and mount piece rotates and is connected with the second leading wheel, the hawser passes through second leading wheel and hoist and mount piece sliding connection, the side of hoist and mount piece rotates and is connected with the closure plate, the tip of closure plate passes through the screw rod and fixes with the hoist and mount piece.

Specifically, the end part of the screw rod is fixedly connected with a first gear, the side surface of the first gear is meshed with a second gear, the second gear is fixedly connected with a first rocker, and the first rocker is rotatably connected with the side surface of the hoisting beam.

Specifically, hoisting structure includes the connecting block, the connecting block is fixed mutually with the tip of hawser, the opposite side of connecting block is rotated and is connected with first polished rod and second polished rod, the inboard of first polished rod and second polished rod is sliding fit respectively and is had a thread bush, two the inboard threaded connection of thread bush has the screw rod.

Specifically, the hanger structure includes the rolling rod, the tip of first hanging rod and second hanging rod rotates respectively and is connected with a rolling rod, the side fixedly connected with cable wire of rolling rod, the tip fixedly connected with carrier block of cable wire, the side fixedly connected with couple of carrier block, the side of carrier block rotates and is connected with the locking lever, fixedly connected with torsional spring between locking lever and the carrier block, just inconsistent between tip and the couple of locking lever.

Specifically, the winding structure includes the block, the side fixedly connected with block of carrier block, the side of winding rod rotates and is connected with the locating piece, the side of locating piece is seted up and is revolved the groove with block matched with, the tip of winding rod rotates and is connected with the second rocker.

Specifically, the side sliding connection of locating piece has the slide bar, slide bar and the inboard sliding fit of winding up reel, just fixedly connected with fourth spring between slide bar and the winding up reel, the side sliding connection of slide bar has the inserted bar, fixedly connected with third spring between inserted bar and the slide bar, sliding fit between inserted bar tip and the winding up reel.

Specifically, the counter weight structure includes the pull board, the inboard sliding fit of base has the pull board, the one end of pull board is settled there is the balancing weight, the both sides of pull board are respectively through pulley and base sliding connection, the tooth's socket has been seted up respectively to the bottom both sides of pull board, the inboard of base is rotated and is connected with the third gear and passes through the tooth's socket and mesh mutually with the pull board.

Specifically, location structure includes conflict tooth piece, the inboard sliding connection of base has conflict tooth piece, the first spring of fixedly connected with between conflict tooth piece and the base, the side of conflict tooth piece is contradicted there is the depression bar, the depression bar rotates with the base to be connected, the inboard sliding connection of depression bar has the control block, the tip of control block is contradicted there is the inclined plane piece, fixedly connected with second spring between inclined plane piece and the base.

The invention has the beneficial effects that:

(1) according to the building construction crane, the base is provided with the traction structure, the telescopic structure is arranged inside the traction structure, articles can be dragged and hoisted through the traction structure, meanwhile, the mooring rope is prevented from being separated, the device can be conveniently arranged and used in different environments through the telescopic structure, and the hoisted articles can be conveniently taken down, namely: firstly, the base is arranged at the position to be used, the motor is electrically connected with an external power supply, the winding drum is driven to rotate by the motor, namely, a cable rope can be pulled to shrink along the lifting beam, in the winding process of the cable rope, two guide rollers arranged on the side surface of the lifting beam can ensure that the cable rope slides along the central line position of the top side of the lifting beam, thereby avoiding the phenomenon that the cable rope is separated, a first guide wheel is arranged at the end part of the lifting beam and used for guiding the cable rope, when the cable rope has an obstacle in the process of falling, a user can move the whole device until the cable rope can normally and freely fall down, the object is normally lifted at the moment, when the object is lifted to the current floor, the user can rotate the first rocker arranged on the side surface of the lifting beam, and the screw rod arranged on the inner side of the lifting beam is driven to rotate by the transmission effect of the internal gear structure, and then drive the hoist and mount piece and take place to remove in the crane beam bottom side, because the hawser passes between hoist and mount piece and the second leading wheel behind first leading wheel for along with the removal of hoist and mount piece, the position of hanging down of hawser bottom changes simultaneously, and the article that lifts by crane through the hawser removes near the base and can be taken off by the user, and the side of hoist and mount piece is equipped with can pivoted closure plate, and the closure plate passes through the screw and is fixed mutually with the hoist and mount piece, conveniently takes off the maintenance to the hawser.

(2) According to the building construction crane, the end part of the traction structure is provided with the hoisting structure, the hoisting structure is connected with the hanger structure, the winding structure is arranged between the hanger structure and the hoisting structure, two-point mass bearing can be carried out through the hoisting structure, the clamping distance can be adjusted according to needs, scattered plates can be conveniently bound and fixed through the hanger structure, the stability in the hoisting process is ensured, the steel cable can be wound through the winding structure, and meanwhile, the release length of the steel cable is controlled, namely: when the mortar or long plate is lifted, two groups of lifting appliances are arranged at the tail end of the cable rope and are respectively fixed at the bottom ends of the first suspension rod and the second suspension rod, in order to enable the two groups of lifting appliances to simultaneously lift two sides of two barrels of mortar or plates and improve the conveying efficiency and stability, a user can adjust the distance between the two groups of lifting appliances as required, two sides of the screw rod are provided with reverse threads, when the screw rod rotates, two thread sleeves at two sides of the screw rod can generate reverse motion, simultaneously the angle between the first suspension rod and the second suspension rod is changed, the effect of changing the distance between the two groups of lifting appliances is achieved, the bottom ends of the first suspension rod and the second suspension rod are respectively and rotatably connected with a rolling rod, the rolling rod is provided with a fixed steel cable and a hook which can fix the objects, and for the plate and other objects needing to be bound, the user can directly bind through the steel cable, convenient to use, need not fixing article with the help of other ropes, guarantee the stability of hoisting article in transportation process simultaneously, when need not to use the cable wire, the user then can be through rotating the second rocker, make the cable wire roll-up to the winding rod on, and block card through the carrier block side goes into the spiral groove of locating piece bottom side, make carrier block and locating piece connect, simultaneously for making the winding rod can not freely take place to rotate, the user can also be through sliding slide bar, block through between the inserted bar of slide bar tip and the winding rod comes to fix the position of winding rod this moment, and when using the cable wire, can also adjust the length of the cable wire that releases as required.

(3) According to the building construction crane, the counterweight structure is arranged inside the base, the positioning structure is arranged between the counterweight structure and the base, the arrangement of the counterweight can be properly adjusted through the counterweight structure, the arrangement of the device is convenient, the fixation of the counterweight position can be ensured through the positioning structure, and the balance stability of the whole device is ensured, namely: when the device is formally lifted, a user needs to arrange enough counter weights on the surface of a pull plate to ensure the balance stability of the whole device, the pull plate can slide to adapt to different arrangement environments, namely, the longer the pull length of the pull plate is, the more the pull length of the pull plate is, the use of the counter weights can be correspondingly reduced, when the pull plate is pulled out, in order to ensure that the pull plate always keeps the current position in the running process of the device, the unbalance of the device caused by the movement of the pull plate is avoided, the side surface of the pull plate is provided with an abutting tooth block which is meshed with a tooth socket under the pushing of a first spring, so that the position of the pull plate is fixed, when the pull plate needs to slide, the user needs to rotate a compression bar positioned on the side surface of a base, the rotation of the compression bar can press the abutting tooth block to cause the sliding of the abutting tooth block, and the meshing between the abutting tooth socket is removed, meanwhile, the inclined plane block on the side face of the base can be abutted against the pressure rod to prevent the pressure rod from rotating, the moving position of the pull plate can be conveniently adjusted, and the limiting effect of the inclined plane block on the pressure rod can be relieved by pressing the control block after the adjustment is completed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the overall structure of a construction crane according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the coupling structure of the towing structure and the telescoping structure shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the traction structure and the hoisting structure shown in FIG. 1;

FIG. 4 is a schematic view of a connection structure between the hoisting structure and the hanger structure shown in FIG. 1;

FIG. 5 is a schematic diagram of the towing configuration shown in FIG. 1;

FIG. 6 is a schematic structural view of the telescoping structure shown in FIG. 1;

FIG. 7 is a schematic view of a connection structure of the base and the counterweight structure shown in FIG. 1;

figure 8 is a schematic view of the connection structure of the weight structure and the positioning structure shown in figure 1,

fig. 9 is a schematic view of a connection structure of the base and the positioning structure shown in fig. 1.

In the figure: 1. base, 2, traction structure, 21, winding drum, 22, motor, 23, hoisting beam, 24, cable, 25, first guide wheel, 26, guide roller, 27, rotating shaft, 3, telescopic structure, 31, first rocker, 32, screw rod, 33, hoisting block, 34, ball, 35, second guide wheel, 36, first gear, 37, second gear, 38, closing plate, 4, hoisting structure, 41, first suspension rod, 42, second suspension rod, 43, connecting block, 44, screw rod, 45, thread sleeve, 5, hanger structure, 51, steel cable, 52, hook, 53, locking rod, 54, torsion spring, 55, bearing block, 56, winding rod, 6, counterweight structure, 61, drawing plate, 62, counterweight block, 63, pulley, 64, tooth groove, 65, third gear, 7, positioning structure, 71, compression rod, 72, interference tooth block, 73, first spring, 74, control block, 75, control block, and gear, The device comprises a slope block 76, a second spring 8, a winding structure 81, a sliding rod 82, a third spring 83, an inserting rod 84, a clamping block 85, a fourth spring 86, a second rocker 87, a rotary groove 88 and a positioning block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-9, the construction crane of the present invention comprises a base 1, wherein the base 1 is provided with a traction structure 2; a telescopic structure 3 is arranged inside the traction structure 2; the end part of the traction structure 2 is provided with a hoisting structure 4; the hoisting structure 4 is connected with a hanger structure 5; a winding structure 8 is arranged between the hanger structure 5 and the hoisting structure 4; a counterweight structure 6 is arranged inside the base 1; and a positioning structure 7 is arranged between the counterweight structure 6 and the base 1.

Specifically, draw structure 2 and include a roll-up drum 21, roll-up drum 21 rotates and connects in base 1, install motor 22 on the base 1, motor 22's tip and roll-up drum 21 fixed connection, roll-up drum 21 side fixedly connected with hawser 24, base 1's side fixedly connected with lifting beam 23, lifting beam 23's side parallel is fixed with two pivots 27, the rotation is connected with deflector roll 26 in the pivot 27, two deflector roll 26 side offsets with hawser 24 respectively, lifting beam 23's tip rotates and is connected with first leading wheel 25, hawser 24 is through the tip sliding connection of first leading wheel 25 with lifting beam 23, promptly: firstly, the base 1 is arranged at a position to be used, the motor 22 is electrically connected with an external power supply, the winding drum 21 is driven by the motor 22 to rotate, so that the cable 24 can be drawn to contract along the hoisting beam 23, in the process of winding the cable 24, the two guide rollers 26 on the side surfaces of the hoisting beam 23 can ensure that the cable 24 slides along the center line position of the top side of the hoisting beam 23, thereby avoiding the cable 24 from being separated, and the end part of the hoisting beam 23 is provided with the first guide wheel 25 for guiding the cable 24.

Specifically, the telescopic structure 3 includes a screw rod 32, the screw rod 32 is rotatably connected to the inner side of the lifting beam 23, a hoisting block 33 is connected to the screw rod 32 through threads, a ball 34 is connected to the side surface of the hoisting block 33 in a rolling manner, the hoisting block 33 is in sliding fit with the inner side of the lifting beam 23 through the ball 34, a second guide wheel 35 is connected to the end portion of the hoisting block 33 in a rotating manner, the cable 24 is in sliding connection with the hoisting block 33 through the second guide wheel 35, a closing plate 38 is connected to the side surface of the hoisting block 33 in a rotating manner, the end portion of the closing plate 38 is fixed to the hoisting block 33 through a screw rod, a first gear 36 is fixedly connected to the end portion of the screw rod 32, a second gear 37 is engaged to the side surface of the first gear 36, a first rocker 31 is fixedly connected to the second gear 37, and the first rocker 31 is rotatably connected to the side surface of the lifting beam 23, that is: when the cable 24 has an obstacle in the way of dropping, the user can move the whole device until the cable 24 can normally and freely drop, at this time, the object is normally lifted, when the object is lifted to the current floor, the user can rotate the first rocker 31 positioned at the side of the lifting beam 23, through the transmission action of the internal gear structure, the screw rod 32 arranged at the inner side of the lifting beam 23 is driven to rotate, and then the lifting block 33 is driven to move at the bottom side of the lifting beam 23, because the cable 24 passes through the lifting block 33 and the second guide wheel 35 after passing through the first guide wheel 35, the hanging position of the bottom end of the cable 24 is changed simultaneously with the movement of the lifting block 33, until the object lifted by the cable 24 moves to the vicinity of the base 1 and can be taken down by the user, the side of hoist and mount piece 33 is equipped with can the pivoted closure plate 38, closure plate 38 through the screw with hoist and mount piece 33 is fixed mutually, conveniently to the maintenance is taken off to hawser 24.

Specifically, the hoisting structure 4 includes a connection block 43, the connection block 43 is fixed to the end of the cable 24, the other side of the connection block 43 is rotatably connected to a first suspension rod 41 and a second suspension rod 42, the inner sides of the first suspension rod 41 and the second suspension rod 42 are respectively in sliding fit with a threaded sleeve 45, and the inner sides of the threaded sleeves 45 are in threaded connection with a screw 44, that is: when carrying out the hoist of mortar or microscler panel, the tail end of hawser 24 is equipped with two sets of hoists, is fixed in respectively first polished rod 41 with the bottom of second polished rod 42, in order to make two sets of hoists can hoist two buckets of mortar or the both sides of panel simultaneously, promotes and transports efficiency and stability, and the user can carry out the adjustment of the distance between two sets of hoists as required, the both sides of screw rod 44 are equipped with reverse screw thread, and when screw rod 44 took place to rotate, two of screw rod 44 both sides threaded sleeve 45 can take place reverse motion, changes simultaneously first polished rod 41 with the angle between the second polished rod 42 reaches the effect that changes two sets of hoist intervals.

Specifically, the hanger structure 5 includes a winding rod 56, the ends of the first suspension rod 41 and the second suspension rod 42 are respectively and rotatably connected with one winding rod 56, the side of the winding rod 56 is fixedly connected with a steel cable 51, the end of the steel cable 51 is fixedly connected with a bearing block 55, the side of the bearing block 55 is fixedly connected with a hook 52, the side of the bearing block 55 is rotatably connected with a locking rod 53, a torsion spring 54 is fixedly connected between the locking rod 53 and the bearing block 55, and the end of the locking rod 53 is in contact with the hook 52, that is: the bottom ends of the first suspension rod 41 and the second suspension rod 42 are respectively and rotatably connected with one winding rod 56, the winding rod 56 is provided with the fixed steel cable 51 and the hook 52, so that objects can be fixed, and for objects such as plates and the like which need to be bound, a user can directly bind through the steel cable 51, so that the use is convenient, the objects do not need to be fixed by other ropes, and meanwhile, the stability of the lifted objects in the conveying process is ensured.

Specifically, the winding structure 8 includes a clamping block 84, a clamping block 84 is fixedly connected to the side of the bearing block 55, a positioning block 88 is rotatably connected to the side of the winding rod 56, a spiral groove 87 matched with the clamping block 84 is formed in the side of the positioning block 88, a second rocker 86 is rotatably connected to the end of the winding rod 56, a sliding rod 81 is slidably connected to the side of the positioning block 88, the sliding rod 81 is slidably matched with the inner side of the winding rod 56, a fourth spring 85 is fixedly connected between the sliding rod 81 and the winding rod 56, an inserting rod 83 is slidably connected to the side of the sliding rod 81, a third spring 82 is fixedly connected between the inserting rod 83 and the sliding rod 81, and the end of the inserting rod 83 is slidably matched with the winding rod 56, namely: when the cable 51 is not needed to be used, a user can rotate the second rocker 86 to wind the cable 51 onto the winding rod 56, and the engaging block 84 on the side surface of the bearing block 55 is engaged into the rotating groove 87 on the bottom side of the positioning block 88, so that the bearing block 55 and the positioning block 88 are connected, and in order to prevent the winding rod 56 from freely rotating, the user can also slide the sliding rod 81 to fix the position of the winding rod 56 at this time through the engagement between the inserting rod 83 at the end of the sliding rod 81 and the winding rod 56, and when the cable 51 is used, the length of the released cable 51 can be adjusted as required.

Specifically, counter weight structure 6 includes pull board 61, the inboard sliding fit of base 1 has pull board 61, the one end of pull board 61 is settled there is the balancing weight 62, pulley 63 and base 1 sliding connection are passed through respectively to the both sides of pull board 61, tooth's socket 64 has been seted up respectively to the bottom both sides of pull board 61, the inboard rotation of base 1 is connected with third gear 65 and meshes with pull board 61 through tooth's socket 64 mutually, promptly: when formally hoisting, a user needs to set enough counter weight blocks 62 on the surface of the pull-out plate 61 to ensure the overall balance stability of the device, and the pull-out plate 61 can slide to adapt to different installation environments, namely, the longer the pull-out length of the pull-out plate 61 is, the more the use of the counter weight blocks 62 can be correspondingly reduced.

Specifically, location structure 7 includes conflict tooth piece 72, the inboard sliding connection of base 1 has conflict tooth piece 72, the first spring 73 of fixedly connected with between conflict tooth piece 72 and the base 1, the side of conflict tooth piece 72 is contradicted there is depression bar 71, depression bar 71 rotates with base 1 to be connected, the inboard sliding connection of depression bar 71 has control block 74, the tip of control block 74 is contradicted there is inclined plane piece 75, fixedly connected with second spring 76 between inclined plane piece 75 and the base 1, promptly: when the drawing plate 61 is drawn out, in order to ensure that the drawing plate 61 always keeps the current position in the device operation process and avoid unbalance of the device caused by movement of the drawing plate 61, the side surface of the drawing plate 61 is provided with the abutting tooth block 72, the abutting tooth block 72 is meshed with the tooth socket 64 under the pushing of the first spring 73, so as to fix the position of the drawing plate 61 at the moment, when the drawing plate 61 needs to slide, a user needs to rotate the pressing rod 71 positioned on the side surface of the base 1, the rotation of the pressing rod 71 presses the abutting tooth block 72 to slide, the meshing between the abutting tooth block 72 and the tooth socket 64 is released, meanwhile, the inclined surface block 75 on the side surface of the base 1 is abutted against the pressing rod 71, the pressing rod 71 is prevented from rotating back, and the moving position of the drawing plate 61 is conveniently adjusted, after the adjustment is completed, the limiting effect of the inclined plane block 75 on the pressure lever 71 can be released by pressing the control block 74.

When the invention is used, firstly, the base 1 is arranged at a position to be used, the motor 22 is electrically connected with an external power supply, the winding drum 21 is driven by the motor 22 to rotate, the cable 24 can be dragged to shrink along the lifting beam 23, in the process of winding the cable 24, two guide rollers 26 positioned on the side surface of the lifting beam 23 can ensure that the cable 24 slides along the central line position of the top side of the lifting beam 23, so that the phenomenon that the cable 24 is separated is avoided, the end part of the lifting beam 23 is provided with a first guide wheel 25 for guiding the cable 24, when an obstacle exists in the falling process of the cable 24, a user can move the whole device until the cable 24 can normally and freely fall down, the object is normally lifted, when the object is lifted to the current floor, the user can rotate the first rocker 31 positioned on the side surface of the lifting beam 23, the screw rod 32 arranged on the inner side of the hoisting beam 23 is driven to rotate through the transmission action of the internal gear structure, so as to drive the hoisting block 33 to move on the bottom side of the hoisting beam 23, the cable 24 passes through the space between the hoisting block 33 and the second guide wheel 35 after passing through the first guide wheel 35, so that the hanging position of the bottom end of the cable 24 is changed along with the movement of the hoisting block 33 at the same time until an article hoisted by the cable 24 moves to the position near the base 1 and can be taken down by a user, the side surface of the hoisting block 33 is provided with a rotatable closing plate 38, the closing plate 38 is fixed with the hoisting block 33 through screws, the cable 24 is convenient to take down and maintain, when the mortar or the long plate is hoisted, the tail end of the cable 24 is provided with two groups of hoists which are respectively fixed at the bottom ends of the first suspension rod 41 and the second suspension rod 42, in order to enable the two groups of hoists to hoist two sides of two barrels of the mortar or the plate simultaneously, the conveying efficiency and the stability are improved, a user can adjust the distance between two groups of lifting appliances as required, reverse threads are arranged on two sides of the screw rod 44, when the screw rod 44 rotates, two thread sleeves 45 on two sides of the screw rod 44 can move reversely, the angle between the first suspension rod 41 and the second suspension rod 42 is changed simultaneously, the effect of changing the distance between the two groups of lifting appliances is achieved, the bottom ends of the first suspension rod 41 and the second suspension rod 42 are respectively and rotatably connected with a winding rod 56, a fixed steel cable 51 and a hook 52 are arranged on the winding rod 56, the objects can be fixed, for the objects such as plates and the like which need to be bound, the user can directly bind through the steel cable 51, the use is convenient, the objects do not need to be fixed by other ropes, the stability of the lifted objects in the conveying process is ensured, when the steel cable 51 is not needed, the user can rotate the second rocker 86, the steel cable 51 is wound onto the winding rod 56 and is clamped into the rotary groove 87 at the bottom side of the positioning block 88 through the clamping block 84 at the side surface of the bearing block 55, so that the bearing block 55 and the positioning block 88 are connected, meanwhile, in order to prevent the winding rod 56 from freely rotating, a user can also fix the position of the winding rod 56 by clamping the insertion rod 83 at the end part of the sliding rod 81 and the winding rod 56 through the sliding rod 81, when the steel cable 51 is used, the length of the released steel cable 51 can be adjusted according to the requirement, when the lifting is formally carried out, the user needs to arrange enough counter weight blocks 62 on the surface of the drawing plate 61 to ensure the balance stability of the whole device, the drawing plate 61 can slide to adapt to different installation environments, namely, the longer the drawn length of the drawing plate 61 is, the use of the counter weight blocks 62 can be correspondingly reduced, when the drawing plate 61 is drawn, in order to ensure that the pull plate 61 always keeps the current position in the operation process of the device and avoid unbalance of the device caused by movement of the pull plate 61, the side surface of the pull plate 61 is provided with an abutting tooth block 72, the abutting tooth block 72 is meshed with the tooth socket 64 under the pushing of the first spring 73, so that the position of the pull plate 61 is fixed at this time, when the pull plate 61 needs to slide, a user needs to rotate the pressing rod 71 positioned on the side surface of the base 1, the rotation of the pressing rod 71 can press the abutting tooth block 72 to slide, the meshing between the abutting tooth block 72 and the tooth socket 64 is released, meanwhile, the inclined plane block 75 on the side surface of the base 1 can abut against the pressing rod 71 to prevent the pressing rod 71 from rotating back, the movement position of the pull plate 61 can be conveniently adjusted, and after adjustment is completed, the limiting effect of the inclined plane block 75 on the pressing rod 71 can be released by pressing the control block 74.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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

Claims

1. The building construction crane is characterized by comprising a base (1), wherein the base (1) is provided with a traction structure (2); a telescopic structure (3) is arranged in the traction structure (2); a hoisting structure (4) is arranged at the end part of the traction structure (2); the hoisting structure (4) is connected with a hanger structure (5); a winding structure (8) is arranged between the hanger structure (5) and the hoisting structure (4); a counterweight structure (6) is arranged inside the base (1); and a positioning structure (7) is arranged between the counterweight structure (6) and the base (1).

2. A construction crane according to claim 1, wherein: draw structure (2) including a roll-up drum (21), roll-up drum (21) rotate to be connected in base (1), install motor (22) on base (1), the tip and roll-up drum (21) fixed connection of motor (22), roll-up drum (21) side fixedly connected with hawser (24), the side fixedly connected with of base (1) goes up lifting beam (23), the side parallel of lifting beam (23) is fixed with two pivot (27), rotate on pivot (27) and be connected with deflector roll (26), two deflector roll (26) side is inconsistent with hawser (24) respectively, the tip of lifting beam (23) rotates and is connected with first leading wheel (25), hawser (24) are through the tip sliding connection of first leading wheel (25) and lifting beam (23).

3. A construction crane according to claim 2, wherein: the telescopic structure (3) comprises a screw rod (32), the screw rod (32) is rotatably connected to the inner side of the lifting beam (23), a lifting block (33) is connected to the screw rod (32) through threads, balls (34) are connected to the side surface of the lifting block (33) in a rolling mode, the lifting block (33) is matched to the inner side of the lifting beam (23) through the balls (34) in a sliding mode, the end portion of the lifting block (33) is rotatably connected with a second guide wheel (35), the mooring rope (24) is connected with the lifting block (33) through the second guide wheel (35) in a sliding mode, the side surface of the lifting block (33) is rotatably connected with a closing plate (38), and the end portion of the closing plate (38) is fixed with the lifting block (33) through a screw rod.

4. A construction crane according to claim 3, wherein: the end part of the screw rod (32) is fixedly connected with a first gear (36), the side surface of the first gear (36) is meshed with a second gear (37), the second gear (37) is fixedly connected with a first rocker (31), and the first rocker (31) is rotatably connected with the side surface of the lifting beam (23).

5. A construction crane according to claim 2, wherein: hoisting structure (4) are including connecting block (43), connecting block (43) are fixed mutually with the tip of hawser (24), the opposite side of connecting block (43) is rotated and is connected with first polished rod (41) and second polished rod (42), the inboard sliding fit respectively of first polished rod (41) and second polished rod (42) has a thread bush (45), two the inboard threaded connection of thread bush (45) has screw rod (44).

6. A construction crane according to claim 5, wherein: the hanger structure (5) comprises a winding rod (56), the ends of the first suspension rod (41) and the second suspension rod (42) are respectively connected with one winding rod (56) in a rotating mode, the side face of the winding rod (56) is fixedly connected with a steel cable (51), the end portion of the steel cable (51) is fixedly connected with a bearing block (55), the side face of the bearing block (55) is fixedly connected with a hook (52), the side face of the bearing block (55) is connected with a locking rod (53) in a rotating mode, a torsion spring (54) is fixedly connected between the locking rod (53) and the bearing block (55), and the end portion of the locking rod (53) is inconsistent with the hook (52).

7. The construction crane according to claim 6, wherein: the winding structure (8) comprises a clamping block (84), the side face of the bearing block (55) is fixedly connected with the clamping block (84), the side face of the winding rod (56) is rotatably connected with a positioning block (88), the side face of the positioning block (88) is provided with a rotary groove (87) matched with the clamping block (84), and the end part of the winding rod (56) is rotatably connected with a second rocker (86).

8. A construction crane according to claim 7, wherein: the side sliding connection of locating piece (88) has slide bar (81), slide bar (81) and rolling rod (56) inboard sliding fit, just fixedly connected with fourth spring (85) between slide bar (81) and rolling rod (56), the side sliding connection of slide bar (81) has inserted bar (83), fixedly connected with third spring (82) between inserted bar (83) and slide bar (81), sliding fit between inserted bar (83) tip and rolling rod (56).

9. A construction crane according to claim 1, wherein: counter weight structure (6) are including pull board (61), the inboard sliding fit of base (1) has pull board (61), the one end of pull board (61) is settled there is balancing weight (62), the both sides of pull board (61) are respectively through pulley (63) and base (1) sliding connection, tooth's socket (64) have been seted up respectively to the bottom both sides of pull board (61), the inboard of base (1) is rotated and is connected with third gear (65) and is passed through tooth's socket (64) and mesh mutually with pull board (61).

10. A construction crane according to claim 9, wherein: location structure (7) are including conflict tooth piece (72), base (1) inboard sliding connection has conflict tooth piece (72), the first spring of fixedly connected with (73) between conflict tooth piece (72) and base (1), the side conflict of conflict tooth piece (72) has depression bar (71), depression bar (71) rotate with base (1) and are connected, the inboard sliding connection of depression bar (71) has control block (74), the tip conflict of control block (74) has inclined plane piece (75), fixedly connected with second spring (76) between inclined plane piece (75) and base (1).