CN220664669U - Small-sized mobile crane - Google Patents

Abstract

The utility model discloses a small mobile crane, which comprises a top plate, wherein the top plate is of a loop structure, four corners of the lower surface of the top plate are respectively and fixedly connected with a stand column, universal wheels are arranged at the bottom ends of the stand columns, a lifting mechanism is arranged at the upper end of the top plate, steel cables are connected inside the lifting mechanism, lifting hooks are arranged at the lower ends of the steel cables, sliding ways are respectively arranged at the left side and the right side of the upper surface of the top plate, sliding rods are connected between the sliding ways in a sliding manner, sliding grooves are formed in the middle parts of the sliding rods, sliding blocks are connected inside the sliding grooves in a sliding manner, pulleys are arranged inside the sliding blocks, the pulleys are in contact with the surfaces of corresponding steel cables, the crane can quickly adjust and fix the positions of steel cables, can adapt to lifting of cargoes of different specifications, meanwhile, the crane can be lifted at four corners simultaneously, shaking conditions can be effectively avoided after the cargoes are lifted, and four corners are positioned, workers can sleeve and joint external steel cables more conveniently, so that the applicability of the crane is improved.

Description

Small-sized mobile crane

Technical Field

The utility model relates to the technical field of hoisting equipment, in particular to a small-sized mobile crane.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range, and the working characteristic of the crane is that the crane does intermittent motion, namely, corresponding mechanisms of taking, moving, unloading and other actions in one working cycle work alternately, and the crane is increasingly widely developed and used in the market.

At present, the existing small-sized crane still has certain defects, in the use process, the lifted object is easy to shake due to the movement of the crane, and the object is lifted through a steel wire rope generally, but the sleeving process of the steel wire rope is very difficult, meanwhile, the existing crane cannot adjust the position of the steel wire rope according to the specification of the lifted object, so that the use of the crane is inconvenient, and therefore, the small-sized mobile crane is provided.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the small-sized mobile crane, which can quickly adjust and fix the positions of the steel wire ropes, can adapt to hoisting of cargoes of different specifications, simultaneously hoists four corners of the crane, can effectively avoid shaking after hoisting of cargoes, and can enable workers to sleeve external steel cables more conveniently at the four corners, so that applicability of the crane is improved, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a small-size portable crane, which comprises a top plate, the roof is the shape structure of returning, the lower surface four corners of roof is fixedly connected with stand respectively, and the universal wheel is installed to the bottom of stand, elevating system is installed to the upper end of roof, and elevating system's internal connection has the steel cable, the lifting hook is installed to the lower extreme of steel cable, the slide is installed respectively to the upper surface left and right sides of roof, and sliding connection has the slide bar between the slide bar, the spout has been seted up at the middle part of slide bar, and the inside sliding connection of spout has the slider, the internally mounted of slider has the pulley, the pulley contacts with the steel cable surface that corresponds, the recess has been seted up to the side surface of stand, and the internally mounted of the recess that the side surface of stand seted up has positioning mechanism;

wherein: the intelligent control device is characterized by further comprising a controller, wherein the controller is arranged in the middle of the left side face of the left side slideway, and the input end of the controller is electrically connected with the output end of an external power supply.

Further, hoist mechanism contains fixed bolster, auxiliary stand, rolling axle, driving motor and chain, the fixed bolster is installed in the upper end of roof, and the upper end of fixed bolster is provided with the auxiliary stand, and the upper surface mid-mounting of auxiliary stand has driving motor, and the inside of auxiliary stand is provided with the rolling axle, and the surface of rolling axle is linear array and is provided with the runner, the surface of runner and the upper end fixed connection of steel cable, the gear that corresponds each other is installed to driving motor's output shaft tip and rolling axle's right side tip, and is connected through chain transmission between the gear, driving motor's input electricity connection director's output. The winding shaft is controlled to wind by using the single driving motor, so that the winding speed of the steel cables is consistent, and further, the condition that the goods are inclined due to the fact that the lifting speed of the four steel cables to the goods is inconsistent is avoided, and the crane is higher in safety in use.

Further, positioning mechanism contains first electric putter, connecting rod and second electric putter, first electric putter installs in the inside upper end of the recess of seting up of the side surface of stand, and the flexible end fixedly connected with connector link of first electric putter, and the lower extreme of connector link articulates there is the connecting rod, connector link sliding connection is in the inside of the spout of seting up of the side surface of stand, the inside lower extreme of the spout of seting up of the side surface of stand articulates there is the connecting rod, and the middle part of connecting rod articulates each other in the lower extreme of connecting rod, the outside tip lower surface mounting of connecting rod has the second electric putter, and the input of first electric putter and second electric putter is connected with the output electricity of controller respectively. The base coverage area of the crane can be effectively enlarged by the aid of the positioning mechanism, so that the crane can be kept stable when lifting or unloading cargoes, the crane is prevented from shaking or shifting to influence the safety of the crane when the crane is used, meanwhile, occupied space of the crane can be obviously reduced by the positioning mechanism after the crane is retracted, and further the crane is more convenient to move.

Further, the lower surface laminating of lower limb has rubber gasket, and rubber gasket's lower surface is linear array and has seted up anti-skidding groove, second electric putter's flexible end tip installs the lower limb. The anti-skid rubber gasket can effectively prevent the crane from shifting during use, so that the safety of the crane during use is further improved.

Further, the novel vertical column structure comprises auxiliary struts, wherein the auxiliary struts are of an X-shaped structure, three auxiliary struts are arranged on the front end and the rear end of the lower surface of the top plate and the left side of the lower surface of the top plate respectively, and the side surfaces of the auxiliary struts are fixedly connected with the side surfaces of the corresponding vertical columns. The auxiliary supporting rod can effectively improve the structural strength between the upright post and the top plate of the crane, and the safety of the crane when in use is prevented from being influenced by the separation of the upright post and the top plate when in use.

Further, still include locking bolt and gasket, the fluting has been seted up to the upper surface of slide, the perforation has been seted up to the tip of slide bar, and the perforated internal thread that the tip of slide bar was seted up is connected with locking bolt, and locking bolt's upper end is provided with the gasket, and the lower surface of gasket contacts with the upper surface of slide. The locking bolt and the gasket that set up can fix the slide bar, prevent that the slide bar from appearing the skew and influence the use of hoist.

Further, the side surface of the sliding rod is provided with a through groove, the side surface of the sliding block is provided with a bolt hole corresponding to the through groove provided on the side surface of the sliding rod, and the side surface of the sliding block is provided with a bolt hole with internal threads connected with a positioning bolt. The positioning bolt that the slider side set up can fix a position the slider, prevents that the phenomenon that the slider skew from appearing when the hoist when using from leading to the steel cable to appear removing, and then makes the use of hoist safe convenient more.

Further, the anti-slip device further comprises a hand push rod, wherein the hand push rod is arranged on the left side of the upper surface of the top plate, the two ends of the hand push rod are of round corner structures, and the push rod part of the hand push rod is sleeved with an anti-slip sleeve. The hand push rod that sets up can make things convenient for the staff to remove the hoist, and the antiskid sleeve pipe that the hand push rod surface cup jointed simultaneously can effectively avoid the staff to appear the smooth phenomenon of hand, and then makes the removal of hoist safer.

Compared with the prior art, the utility model has the beneficial effects that: the small mobile crane has the following advantages:

1. this crane can adjust and fix wire rope position fast, can adapt to the goods hoist and mount of different specifications, and this crane lifts by crane simultaneously for the four corners, can effectively avoid the goods to lift by crane the back and appear rocking the condition, and the four corners location can make the staff cup joint outside steel cable more convenient, and then makes the suitability of crane obtain promoting.

2. The winding shaft is controlled to wind by using the single driving motor, so that the winding speed of the steel cables is consistent, and further, the condition that the goods are inclined due to the fact that the lifting speed of the four steel cables to the goods is inconsistent is avoided, and the crane is higher in safety in use.

3. The base coverage area of the crane can be effectively enlarged by the aid of the positioning mechanism, so that the crane can be kept stable when lifting or unloading cargoes, the crane is prevented from shaking or shifting to influence the safety of the crane when the crane is used, meanwhile, occupied space of the crane can be obviously reduced by the positioning mechanism after the crane is retracted, and further the crane is more convenient to move.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the left side view of the present utility model;

FIG. 3 is a schematic view of a front cross-sectional structure of the present utility model;

fig. 4 is an enlarged schematic view of the front section a of the present utility model.

In the figure: 1 upright post, 2 top plate, 3 lifting mechanism, 301 fixed support, 302 auxiliary support, 303 winding shaft, 304 driving motor, 305 chain, 4 slideway, 5 slide bar, 6 slider, 7 universal wheel, 8 auxiliary supporting rod, 9 locking bolt, 10 gasket, 11 pulley, 12 steel cable, 13 controller, 14 hand push rod, 15 positioning mechanism, 151 first electric push rod, 152 connecting rod, 153 connecting rod, 154 second electric push rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: the utility model provides a small-size portable crane, including roof 2, roof 2 is the shape structure of returning, the lower surface four corners of roof 2 is fixedly connected with stand 1 respectively, and universal wheel 7 is installed to the bottom of stand 1, hoist mechanism 3 is installed to the upper end of roof 2, and hoist mechanism 3's internal connection has steel cable 12, the lifting hook is installed to the lower extreme of steel cable 12, slide 4 is installed respectively to the upper surface left and right sides of roof 2, and sliding connection has slide bar 5 between slide 4, the spout has been seted up at the middle part of slide bar 5, and the inside sliding connection of spout has slider 6, the internally mounted of slider 6 has pulley 11, pulley 11 and the surface contact of corresponding steel cable 12, the recess has been seted up to the side surface of stand 1, and the internally mounted of the recess that the side surface of stand 1 seted up has positioning mechanism 15;

wherein: the intelligent control device further comprises a controller 13, wherein the controller 13 is arranged in the middle of the left side face of the left side slideway 4, and the input end of the controller 13 is electrically connected with the output end of an external power supply.

In this embodiment, the lifting mechanism 3 includes a fixing bracket 301, an auxiliary bracket 302, a winding shaft 303, a driving motor 304 and a chain 305, the fixing bracket 301 is installed at the upper end of the top plate 2, the upper end of the fixing bracket 301 is provided with the auxiliary bracket 302, the driving motor 304 is installed in the middle of the upper surface of the auxiliary bracket 302, the winding shaft 303 is arranged in the auxiliary bracket 302, the surface of the winding shaft 303 is provided with a rotating wheel in a linear array, the surface of the rotating wheel is fixedly connected with the upper end of the steel cable 12, the end part of an output shaft of the driving motor 304 and the end part of the right side of the winding shaft 303 are provided with gears corresponding to each other, the gears are in transmission connection through the chain 305, and the input end of the driving motor 304 is electrically connected with the output end of the controller 13. The winding shaft 303 is controlled to wind by using the single driving motor 304, so that the winding speed of the steel cables 12 is consistent, and further, the condition that the four steel cables 12 incline due to inconsistent lifting speed of the goods is avoided, and the crane is higher in use safety.

In this embodiment, the positioning mechanism 15 includes a first electric push rod 151, a connecting rod 152, a connecting rod 153 and a second electric push rod 154, the first electric push rod 151 is mounted at an inner upper end of a groove formed in a side surface of the upright 1, a telescopic end of the first electric push rod 151 is fixedly connected with a connecting buckle, a lower end of the connecting buckle is hinged with the connecting rod 152, the connecting buckle is slidably connected with an inner portion of a chute formed in the side surface of the upright 1, a lower end of the inner portion of the chute formed in the side surface of the upright 1 is hinged with the connecting rod 153, a middle portion of the connecting rod 153 is hinged with each other at a lower end of the connecting rod 152, a second electric push rod 154 is mounted at a lower surface of an outer end portion of the connecting rod 153, and input ends of the first electric push rod 151 and the second electric push rod 154 are respectively electrically connected with an output end of the controller 13. The positioning mechanism 15 that sets up can effectively enlarge the base coverage area of hoist, makes the hoist can keep stable when promoting or unloading the goods, prevents that the hoist from rocking or shifting and influence its security when using, and positioning mechanism 15 can obviously reduce the shared space of hoist after packing up simultaneously, and then makes the removal of hoist more convenient. The lower surface laminating of lower limb has rubber gasket, and rubber gasket's lower surface is linear array and has seted up anti-skidding groove, and the flexible end tip of second electric putter 154 installs the lower limb. The anti-skid rubber gasket can effectively prevent the crane from shifting during use, so that the safety of the crane during use is further improved.

In this embodiment, the auxiliary supporting rod 8 is further included, the auxiliary supporting rod 8 is in an X-shaped structure, three auxiliary supporting rods 8 are provided, the three auxiliary supporting rods 8 are respectively installed at the front end and the rear end and the left side of the lower surface of the top plate 2, and the side surfaces of the auxiliary supporting rods 8 are fixedly connected with the side surfaces of the corresponding upright posts 1. The auxiliary strut 8 that sets up can effectively promote the structural strength between stand 1 and the roof 2 of hoist, avoids the hoist to appear stand 1 and roof 2 breaking away from and influence its security when using.

In this embodiment, the sliding rail device further comprises a locking bolt 9 and a gasket 10, the upper surface of the sliding rail 4 is provided with a slot, the end part of the sliding rod 5 is provided with a through hole, the inside thread of the through hole provided at the end part of the sliding rod 5 is connected with the locking bolt 9, the upper end of the locking bolt 9 is provided with the gasket 10, and the lower surface of the gasket 10 is in contact with the upper surface of the sliding rail 4. The locking bolt 9 and the gasket 10 can fix the slide bar 5, and prevent the slide bar 5 from shifting to influence the use of the crane. The side surface of slide bar 5 has seted up logical groove, and the bolt hole corresponding with logical groove that the side surface of slide bar 5 seted up is seted up to the side surface of slider 6, and the inside threaded connection of the bolt hole that the side surface of slider 6 seted up has positioning bolt. The positioning bolt that the slider 6 side set up can fix a position slider 6, prevents that the phenomenon that the slider 6 skew from appearing when the hoist when using from leading to the steel cable 12 to appear removing, and then makes the use of hoist safe convenient more.

In this embodiment, the anti-slip device further includes a push rod 14, the push rod 14 is mounted on the left side of the upper surface of the top plate 2, two ends of the push rod 14 are in a rounded structure, and the push rod part of the push rod 14 is sleeved with an anti-slip sleeve. The hand push rod 14 that sets up can make things convenient for the staff to remove the hoist, and the antiskid sleeve pipe that the hand push rod 14 surface cup jointed simultaneously can effectively avoid the staff to appear the phenomenon that hand is smooth, and then makes the removal of hoist safer.

The working principle of the small mobile crane provided by the utility model is as follows: the position of the slide bar 5 and the position of the slide block 6 are adjusted according to the specification of goods to be lifted, then the slide bar 5 and the slide block 6 are respectively locked through the locking bolt 9, the gasket 10 and the positioning bolt, the crane is pushed to a designated position, the end part of the connecting rod 152 is driven to descend through the first electric push rod 151, then the connecting rod 153 is put down, the second electric push rod 154 is put down the rubber gasket, the rubber gasket is contacted with the ground, the purpose of fixing the position of the crane is achieved, the driving motor 304 drives the winding shaft 303 to rotate through the chain 305, the winding shaft 303 rotates to enable the steel cable 12 to lift, after the lifting hook at the lower end of the steel cable 12 is hung with a goods lifting ring or a steel wire rope, the steel cable 12 is controlled to lift the goods, the first electric push rod 151 and the second electric push rod 154 can be retracted after the lifting of the goods is completed, then the crane and the goods can be moved, when the goods are lifted down, the fixing of the position of the crane is completed, then the driving motor 304 is controlled to rotate, the steel cable 12 is driven to move the goods down, and the lifting hook can be taken down after the goods are placed.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. A small mobile crane, characterized by: the lifting mechanism comprises a top plate (2), wherein four corners of the lower surface of the top plate (2) are respectively and fixedly connected with an upright post (1), universal wheels (7) are arranged at the bottom end of the upright post (1), a lifting mechanism (3) is arranged at the upper end of the top plate (2), a steel cable (12) is connected to the inner part of the lifting mechanism (3), a lifting hook is arranged at the lower end of the steel cable (12), slide ways (4) are respectively arranged at the left side and the right side of the upper surface of the top plate (2), slide bars (5) are connected between the slide ways (4) in a sliding manner, slide grooves are formed in the middle parts of the slide bars (5), sliding blocks (6) are connected in the inner parts of the slide grooves in a sliding manner, pulleys (11) are in contact with the surfaces of the corresponding steel cables (12), grooves are formed in the side surfaces of the upright posts (1), and positioning mechanisms (15) are arranged in the grooves formed in the side surfaces of the upright posts (1).

Wherein: the intelligent control device is characterized by further comprising a controller (13), wherein the controller (13) is arranged in the middle of the left side face of the left side slideway (4), and the input end of the controller (13) is electrically connected with the output end of an external power supply.

2. A small mobile crane according to claim 1, characterized in that: lifting mechanism (3) contain fixed bolster (301), auxiliary stand (302), windup axle (303), driving motor (304) and chain (305), the upper end in roof (2) is installed to fixed bolster (301), the upper end of fixed bolster (301) is provided with auxiliary stand (302), and the upper surface mid-mounting of auxiliary stand (302) has driving motor (304), the inside of auxiliary stand (302) is provided with windup axle (303), and the surface of windup axle (303) is the linear array and is provided with the runner, the surface of runner is fixed connection with the upper end of steel cable (12), mutually corresponding gear is installed to the output shaft end of driving motor (304) and the right side tip of windup axle (303), and be connected through chain (305) transmission between the gear, the output of input electricity connection director (13) of driving motor (304).

3. A small mobile crane according to claim 1, characterized in that: positioning mechanism (15) contain first electric putter (151), connecting rod (152), connecting rod (153) and second electric putter (154), the inside upper end of recess offered in the side surface of stand (1) is installed to first electric putter (151), the flexible end fixedly connected with connector link of first electric putter (151), and the lower extreme of connector link articulates there is connecting rod (152), connector link sliding connection is in the inside of spout offered in the side surface of stand (1), the inside lower extreme of spout offered in the side surface of stand (1) articulates there is connecting rod (153), and the middle part of connecting rod (153) articulates each other in the lower extreme of connecting rod (152), the outside end lower surface mounting of connecting rod (153) has second electric putter (154), and the input of first electric putter (151) and second electric putter (154) are connected with the output electricity of controller (13) respectively.

4. A small mobile crane according to claim 3, characterized in that: the lower surface laminating of lower limb has rubber gasket, and the lower surface of rubber gasket is linear array and has seted up anti-skidding groove.

5. A small mobile crane according to claim 1, characterized in that: still include auxiliary strut (8), auxiliary strut (8) are X-shaped structure, and auxiliary strut (8) are provided with three altogether, and both ends and left side around the lower surface of roof (2) are installed respectively to three auxiliary strut (8), and the side surface of auxiliary strut (8) is fixed with the side surface of corresponding stand (1) and is connected.

6. A small mobile crane according to claim 1, characterized in that: still include locking bolt (9) and gasket (10), the fluting has been seted up to the upper surface of slide (4), the perforation has been seted up to the tip of slide bar (5), and the fenestrate inside threaded connection that the tip of slide bar (5) was seted up has locking bolt (9), and the upper end of locking bolt (9) is provided with gasket (10), and the lower surface of gasket (10) contacts with the upper surface of slide (4).

7. A small mobile crane according to claim 1, characterized in that: the side surface of slide bar (5) has seted up logical groove, the bolt hole corresponding with logical groove that the side surface of slide bar (5) was seted up is seted up to the side surface of slider (6), and the inside threaded connection of the bolt hole that the side surface of slider (6) was seted up has positioning bolt.

8. A small mobile crane according to claim 1, characterized in that: the novel anti-slip device is characterized by further comprising a hand push rod (14), wherein the hand push rod (14) is arranged on the left side of the upper surface of the top plate (2), the two ends of the hand push rod (14) are of round corner structures, and an anti-slip sleeve is sleeved at the push rod part of the hand push rod (14).