CN217297058U

CN217297058U - Hoisting device

Info

Publication number: CN217297058U
Application number: CN202220234900.2U
Authority: CN
Inventors: 孙郡晨; 李红峰; 郑文杰
Original assignee: Guangdong Jinfeng Technology Co ltd
Current assignee: Guangdong Jinfeng Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-08-26
Anticipated expiration: 2032-01-27

Abstract

The application provides a hoisting device, wherein, hoisting device includes davit subassembly, slip stand, stationary mast, unable adjustment base and actuating mechanism, the upper end of slip stand with the davit subassembly is connected, the upper end of stationary mast with slip stand lower extreme overlap sets up, is used for the guide the up-and-down motion of slip stand, stationary base sets up the stationary mast lower extreme is used for supporting the stationary mast, actuating mechanism sets up on the unable adjustment base, support the lower extreme and the drive of slip stand the slip stand for the stationary mast slides from top to bottom. According to the application, the sliding stand column is driven by the driving mechanism to slide up and down relative to the fixed stand column, so that the height of the whole hoisting device can be adjusted conveniently according to the actual height of the space, and the hoisting device can conveniently enter a narrow space.

Description

Hoisting device

Technical Field

The application relates to the technical field of hoisting equipment, in particular to a hoisting device.

Background

During the maintenance operation, people usually use a crane to lift the heavy object. In the prior art, hoisting equipment is usually applied to hoisting occasions with unlimited hoisting space, but hoisting equipment is difficult to apply to narrow and small spaces with limited hoisting space, particularly narrow and small spaces with limited height and above which hoisting points cannot be set, and when heavy components are installed or maintained, multiple persons are often required to lift the components, so that the maintenance difficulty is high, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of this application is to provide a hoist device, can drive the slip stand through actuating mechanism and slide from top to bottom for fixed post for whole hoist device's height-adjustable, consequently hoist device can be applicable to the height-limited and top narrow and small space that can not set up the hoisting point.

According to the first aspect of this application, a hoist device is provided, hoist device includes davit subassembly, slip stand, stationary mast, unable adjustment base and actuating mechanism, the upper end of slip stand with the davit subassembly is connected, the upper end of stationary mast with slip stand lower extreme overlap sets up, is used for the guide the up-and-down motion of slip stand, unable adjustment base sets up the stationary mast lower extreme is used for supporting the stationary mast, actuating mechanism sets up on the unable adjustment base, support the lower extreme and the drive of slip stand the slip stand for the stationary mast slides from top to bottom.

According to the hoisting device of this application, through setting up davit subassembly, slip stand, fixed standing pillar, unable adjustment base and actuating mechanism, can drive the slip stand for the up-and-down motion of fixed standing pillar through actuating mechanism for whole hoisting device's height-adjustable can conveniently get into narrow and small space according to the height adjustment hoisting device's of actual space height with the convenience.

In an embodiment, the driving mechanism includes a driving gear, a driven gear, a lead screw, and a nut, the driven gear being engaged with the driving gear and capable of receiving a rotational driving force of the driving gear; the lower end of the screw rod is fixedly connected with the driven gear; the nut is sleeved on the screw rod, is in threaded connection with the screw rod and can move up and down along the screw rod along with the rotation of the screw rod, and the lower end of the sliding upright post is supported on the nut.

According to the application, through setting up driven gear and driving gear meshing to can receive the rotary drive power of driving gear, and the lower extreme and the driven gear fixed connection of lead screw, consequently the driving gear is through receiving drive power and rotate and the transmission gives driven gear and then drive lead screw rotation from the outside, and the nut can reciprocate along the lead screw along with the rotation of lead screw, thereby drives the slip stand and reciprocates, realizes whole hoist device's height-adjustable.

In an embodiment, the fixed column is a hollow cylinder, the lower end of the sliding column is inserted into the fixed column, the screw rod and the nut are disposed inside the fixed column, and the driving mechanism further includes a limiting member, which connects the nut to the fixed column or the fixed base and prevents the nut from rotating relative to the screw rod.

According to the hoisting device of this application, be hollow cylinder through setting up fixed post, the lower extreme of slip stand is inserted and is established in fixed post, and fixed post can play the guide effect to the up-and-down motion of slip stand for whole device's lift is more steady. Through setting up the locating part, can prevent that the nut from rotatory for the lead screw, guarantee that the nut can only be at the lead screw up-and-down motion, guaranteed the reliability of slip stand motion.

Specifically, the lower extreme of slip stand is hollow sleeve, hollow sleeve's diameter is greater than the diameter of screw rod, the locating part is two gag lever posts, the lower extreme fixed connection of gag lever post is in unable adjustment base is last, be provided with two through-holes that extend from top to bottom on the nut, two wear to establish respectively in two the through-hole in the upper end of gag lever post, the gag lever post is located hollow sleeve's radial inboard or be located hollow sleeve's radial outside.

According to the hoisting device of this application, the lower extreme through setting up the slip stand is hollow sleeve, and the upper end of lead screw can stretch into the slip stand, and the nut moves just can not continue the upward movement to the contact with hollow sleeve's lower extreme, so set up can guarantee that the nut can not break away from the lead screw, can reduce the trouble of reassembling whole device.

In an embodiment, the driving mechanism further comprises a driving handle, and the driving handle is fixedly connected with the driving gear and used for driving the driving gear to rotate.

Specifically, the driving handle is located on the upper surface of the supporting bottom plate of the fixing base and can be fixedly connected with the driving gear through the connecting shaft.

According to the hoist device of this application, through setting up drive handle, can rotate through drive handle drive driving gear, for example, manual revolving force is applyed the drive handle and is driven the driving gear and rotate, and in addition, drive handle sets up the operation of can being convenient for externally.

In an embodiment, the boom assembly includes a fixed arm fixedly connected to an upper end of the sliding column and a telescopic arm supported by the fixed arm and capable of extending or retracting in a horizontal direction with respect to the fixed arm.

According to the hoisting device, the length of the whole hoisting arm assembly can be adjusted by arranging the telescopic arm, the requirement of more spaces can be met, the telescopic arm is supported by the fixed arm, and the telescopic arm can run more stably when extending or retracting along the horizontal direction, so that the stability of hoisting heavy objects is ensured.

In an embodiment, the fixed arm is in a horizontally extending sleeve shape, two ends of the fixed arm are respectively provided with a group of rolling shafts which are arranged up and down, the telescopic arm is supported on the fixed arm through the rolling shafts, the rear end of the telescopic arm is provided with a pull rod, and the front end of the telescopic arm is provided with two hanging points.

According to the hoisting device provided by the application, the telescopic arm is pushed to extend or retract along the horizontal direction by arranging the pull rod, so that the operation is simple and convenient. Through being provided with at least one hoisting point at the front end of flexible arm, in practical application, can select suitable hoisting point as required in order to accomplish dress dimension operation.

In an embodiment, the sliding column can rotate relative to the fixed column to adjust the orientation of the boom assembly, and the lower end of the sliding column is sleeved with at least two wear-resistant sliding sleeves at intervals, and the outer peripheral surfaces of the wear-resistant sliding sleeves are in contact with the inner side surface of the fixed column.

According to the hoist device of this application, wear-resisting sliding sleeve has the characteristics that frictional force is little, sets up wear-resisting sliding sleeve through the lower extreme interval at the slip stand, when the position of horizontal direction adjustment davit subassembly is followed to needs, only need manual rotation slip stand alright with the orientation of adjusting davit subassembly to the realization can satisfy more hoist and mount demands, need not shift again whole hoist device when the switch position. In addition, wear-resisting sliding sleeve has corrosion-resistant advantage, sets up wear-resisting sliding sleeve and can avoid hoisting device each part emergence corrosion adhesion after idle for a long time.

In an embodiment, the nut is a T-shaped nut, a gap is maintained between the periphery of the nut and the inner surface of the fixed upright, a nylon plate is fixedly arranged on the upper surface of the nut, and the lower end of the sliding upright is supported on the nylon plate.

In the embodiment, the periphery of nut and the internal surface of fixed stand keep the clearance, and the upper surface of nut is covered by the nylon board, and the rigidity of nylon board is relatively weaker, and when the nut up-and-down motion, the periphery of nylon board and the inside wall looks butt of fixed stand and can paste the inside wall up-and-down motion of fixed stand to make the up-and-down motion of slip stand more stable, simultaneously, can also reduce the wearing and tearing to the inside wall of fixed stand, in order to promote hoist device's life.

In an embodiment, the fixing base comprises supporting legs and a supporting bottom plate detachably arranged on the supporting legs, the driving gear and the driven gear are arranged on the lower surface of the supporting bottom plate, and the lower end of the screw rod penetrates through the supporting bottom plate to be connected with the driven gear.

In an embodiment, the sliding columns comprise an upper sliding column and a lower sliding column which are detachably connected, the suspension arm assembly is arranged at the upper end of the upper sliding column, the lower end of the lower sliding column is combined with the driving mechanism, and the height range of the hoisting device is 135cm-150 cm.

According to the hoisting device of this application, including dismantling last sliding column and the lower sliding column of connection through setting up the slip stand, can alleviate the weight of every part, convenient equipment is in order to form the slip stand, according to the hoisting device of this application, each part can be dismantled and connect, can get into and assemble again behind the narrow and small space to make whole device have the application scope of broad.

Drawings

The above and other objects and features of the present application will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

figure 1 is a schematic front view of a lifting device according to an embodiment of the application;

figure 2 is a schematic left view of a lifting device according to an embodiment of the application;

FIG. 3 is a schematic bottom view of a hoist according to an embodiment of the application;

figure 4 is a partially cut-away schematic view of a lifting device according to an embodiment of the application in a first state;

FIG. 5 is an enlarged schematic view of FIG. 4 at I according to an embodiment of the present application;

figure 6 is a partially cut-away schematic view of a lifting device according to an embodiment of the present application in a second state;

FIG. 7 is an enlarged schematic view at J of FIG. 6 according to an embodiment of the present application;

fig. 8 is a schematic cross-sectional structure diagram of a hoisting device according to an embodiment of the application.

Reference numerals:

10. a boom assembly; 11. a fixed arm; 111. a roll axis; 12. a telescopic arm; 121. a pull rod; 122. hoisting points;

20. sliding the upright post; 21. sliding the upright post upwards; 211. supporting the rib plate; 22. a lower sliding column;

30. fixing the upright post; 40. a fixed base; 41. supporting legs; 42. a support base plate;

50. a drive mechanism; 51. a driving gear; 52. a driven gear; 53. a screw rod; 54. a nut; 55. a limiting member; 56. a drive handle; 57. a connecting shaft;

60. a wear-resistant sliding sleeve; 70. a nylon plate.

Detailed Description

The application provides a hoist device for in highly restricted narrow and small space to realize lifting by crane, the displacement function of heavy object, solved the installation of highly restricted narrow and small space inner part and maintained inconvenient difficult problem. The specific structure of the hoist device according to the present application will be described in detail below with reference to fig. 1 to 8.

The application provides a hoisting device. As shown in fig. 1 and 4, the lifting device includes a boom assembly 10, a sliding column 20, a fixed column 30, a fixed base 40, and a driving mechanism 50. Wherein, the upper end of the sliding column 20 is connected with the boom assembly 10, the upper end of the fixed column 30 is overlapped with the lower end of the sliding column 20 for guiding the up-and-down movement of the sliding column 20, the fixed base 40 is arranged at the lower end of the fixed column 30 for supporting the fixed column 30, and the driving mechanism 50 is arranged on the fixed base 40 and can support the lower end of the sliding column 20 and drive the sliding column 20 to slide up and down relative to the fixed column 30.

According to the hoisting device of this application, through setting up davit subassembly 10, slip stand 20, fixed post 30, unable adjustment base 40 and actuating mechanism 50 to set up actuating mechanism 50 and can drive slip stand 20 for the up-and-down motion of fixed post 30, make whole hoisting device's height-adjustable, consequently can conveniently according to actual space's height adjustment hoisting device can get into narrow and small space with the convenience, the rethread adjustment davit subassembly 10 accomplishes the dress and maintains the operation.

In the embodiment, the driving mechanism 50 includes a driving gear 51, a driven gear 52, a lead screw 53, and a nut 54. The driven gear 52 is engaged with the driving gear 51 and can receive the rotation driving force of the driving gear 51, the lower end of the screw 53 is fixedly connected with the driven gear 52, the nut 54 is sleeved on the screw 53 and is in threaded connection with the screw 53 and can move up and down along the screw 53 along with the rotation of the screw 53, and the lower end of the sliding upright 20 is supported on the nut 54.

According to the hoisting device, the driven gear 52 is meshed with the driving gear 51 and can receive the rotary driving force of the driving gear 51, the lower end of the screw rod 53 is fixedly connected with the driven gear 52, therefore, the driving gear 51 rotates by receiving the driving force from the outside and transmits the driving force to the driven gear 52 so as to drive the screw rod 53 to rotate, the nut 54 can move up and down along the screw rod 53 along with the rotation of the screw rod 53, the sliding upright column 20 is driven to move up and down, and the height of the whole hoisting device is adjustable.

Fig. 2 and 8 each show a structural example of the fixing base of the present application. As shown in fig. 2 and 8, the fixing base 40 includes supporting feet 41 and a supporting bottom plate 42 detachably disposed on the supporting feet 41, and the supporting feet 41 can be fixedly supported on the ground to ensure that the whole device stably stands on the ground. The driving gear 51 and the driven gear 52 are arranged on the lower surface of the support base plate 42 in parallel, and the lower end of the screw rod 53 penetrates through the support base plate 42 and is fixedly connected with the driven gear 52. In this application embodiment, fixing holes may be respectively disposed on the supporting legs 41 and the supporting base plate 42, and the supporting legs 41 and the supporting base plate 42 are detachably connected by using fasteners through the fixing holes, so as to ensure the connection stability of the whole device.

Fig. 3 shows an example of the structure of the drive gear and the driven gear of the present application. As shown in fig. 3, the driving gear 51 is a small gear, and the driven gear 52 is a large gear, so that when the driving gear 51 is driven by external force, the sliding column 20 can be driven to move up and down with a small force, thereby saving labor.

In an embodiment, the driving mechanism 50 further includes a driving handle 56, the driving handle 56 is fixedly connected to the driving gear 51, and the driving handle 56 can be used for driving the driving gear 51 to rotate.

In particular, the drive handle 56 is square-headed above it so that it can be driven by a ratchet wrench in use. Of course, the present application may be manually actuated, and the present application is not limited to actuating the actuating handle 56.

Fig. 4 and 6 show an example of the connection between the driving handle and the driving gear, the driving handle 56 is located on the upper surface of the supporting base plate 42 of the fixing base 40, and the driving handle 56 located on the upper surface of the supporting base plate 42 can be fixedly connected to the driving gear 51 located on the lower surface of the supporting base plate 42 through a connecting shaft 57.

According to the lifting device of the application, the driving handle 56 is arranged on the upper surface of the supporting bottom plate 42, so that the driving operation can be conveniently carried out on the outside.

In an embodiment, the driving mechanism 50 may further include a limiting member 55 in addition to the driving gear 51, the driven gear 52, the lead screw 53 and the nut 54. Wherein, the limiting member 55 is connected to the fixed column 30 or the fixed base 40 and combined with the nut 54, so as to prevent the nut 54 from rotating relative to the screw 53.

Depending upon the application, the stop 55 can be a rib and a matching groove, and illustratively, an axial rib can be formed on the nut 54 and a corresponding axial groove can be formed on the stationary post 30, along which the rib can move up and down to prevent rotation of the nut 54 relative to the screw 53 as the nut 54 moves up and down. Or the limiting member 55 may be a limiting rod formed on the fixing base 40.

In the example shown in the drawings, the limiting member 55 is two limiting rods, the lower ends of the limiting rods are fixedly connected to the fixing base 40, two through holes extending up and down are formed in the nut 54, the upper ends of the two limiting rods are respectively inserted into the two through holes, and the lower ends of the two limiting rods are connected to the supporting bottom plate 42 of the fixing base 40 through fasteners.

According to the hoisting device, the nut 54 can be prevented from rotating relative to the screw rod 53 by arranging the limiting piece 55, the nut 54 can only move up and down on the screw rod 53, and the movement reliability of the sliding stand column 20 is ensured.

According to the present application, the lower end of the sliding column 20 may be disposed inside the fixed column 30, in an exemplary embodiment, the fixed column 30 is a hollow cylinder, the lower end of the sliding column 20 is inserted into the fixed column 30, and the fixed column 30 can play a role of guiding the up-and-down movement of the sliding column 20.

In the embodiment, the fixed upright 30 is a hollow cylinder, the lower end of the sliding upright 20 is inserted into the fixed upright 30, the screw 53 and the nut 54 are arranged inside the fixed upright 30, the nut 54 can abut against the lower part of the sliding upright 20, and the screw 53 rotates to drive the nut to move up and down so as to drive the sliding upright 20 to move up and down.

According to the hoisting device of this application, be hollow cylinder through setting up fixed post 30, the lower extreme of slip stand 20 is inserted and is established in fixed post 30, and fixed post 30 can play the guide effect to the up-and-down motion of slip stand 20 for the lift of whole device is more steady.

An example of the structure of the sliding column of the present application is shown in fig. 2. In the example shown in fig. 2, the lower end of the sliding column 20 is a hollow sleeve having an inner diameter larger than that of the screw 53, the upper end of the screw can pass through a through hole in the bottom wall of the hollow sleeve and protrude into the hollow sleeve, and the nut has a diameter larger than that of the through hole in the lower end of the sliding column 20, so that the lower end of the sliding column 20 can be supported on the upper surface of the nut.

In an embodiment, the upper end of the stop rod is located radially inside the hollow sleeve or radially outside the hollow sleeve. The upper end of the stopper rod overlaps the lower end of the sliding post 20 by a predetermined length preferably exceeding the up-down adjustment range of the sliding post 20 when the sliding post 20 is at the lowest position, and preferably, the stopper rod may be provided with a stopper projection to limit the highest moving position of the nut 54, thereby preventing the nut 54 from falling off the stopper rod when the sliding post 20 is at the highest position. According to the hoisting device, the lower end of the sliding upright post 20 is provided with the hollow sleeve, the upper end of the screw rod 53 can extend into the sliding upright post 20, and the limit part 55 is used for guiding and limiting the stroke of the rotation and the up-and-down movement of the nut 54, so that the nut 54 cannot rotate in the up-and-down movement process, and cannot be separated from the screw rod 53, and the hoisting device is prevented from losing efficacy.

Examples of the structure in which the nut 54 moves to the lowermost end and the uppermost end are shown in fig. 5 and 7, respectively. As shown in fig. 5 and 7, the nut 54 is a T-shaped nut 54, the outer circumference of the nut 54 maintains a gap with the inner surface of the fixed post 30, a nylon plate 70 is fixedly provided on the upper surface of the nut 54, and the lower end of the sliding post 20 is supported on the nylon plate 70.

In an embodiment, the upper portion of the T-shaped nut 54 may be connected to the nylon plate 70 by a plurality of sets of fasteners, and the nylon plate 70 is fixed above the T-shaped nut 54 along the circumferential direction, so as to ensure that the nut 54 and the nylon plate 70 are not separated during movement. The periphery of the nut 54 keeps a gap with the inner surface of the fixed upright 30, the upper surface of the nut 54 is covered by the nylon plate 70, the rigidity of the nylon plate is relatively weak, when the nut 54 moves up and down, the periphery of the nylon plate 70 is abutted against the inner side wall of the fixed upright 30 and can move up and down along the inner side wall of the fixed upright, so that the up-and-down movement of the sliding upright 20 is more stable, meanwhile, the abrasion to the inner side wall of the fixed upright 30 can be reduced, and the service life of the hoisting device is prolonged.

In an embodiment, the sliding column 20 comprises an upper sliding column 21 and a lower sliding column 22 detachably connected, the boom assembly 10 is disposed at an upper end of the upper sliding column 21, and a lower end of the lower sliding column 22 is coupled to the driving mechanism 50. The upper end of the upper sliding column 21 can be connected with the boom assembly 10 through a plurality of groups of fasteners, and the plurality of groups of fasteners are uniformly arranged at each position in the circumferential direction, so that the connection reliability is ensured.

According to the hoist device of this application, including dismantling last sliding column 21 and the lower sliding column 22 of connection through setting up sliding column 20, can alleviate the weight of every part, the convenient equipment is in order to form sliding column 20, according to the hoist device of this application, each part can be dismantled and is connected, can get into and assemble again behind the narrow and small space to make whole device have the application scope of broad, especially have very big installation advantage to the narrow and small space that the space height is less than 27 cm.

As shown in fig. 6, the sliding column 20 may further include connecting rib plates 211 disposed on both sides of the upper sliding column 21 for supporting between the boom assembly 10 and the upper sliding column 21, so as to enhance the supporting stability and reliability of the boom assembly 10 by the sliding column 20.

According to the present application, the boom assembly 10 can be used for connecting hoists and has a telescopic function, avoiding interference of other components in space. In the embodiment, the boom assembly 10 includes a fixing arm 11 and a telescopic arm 12, the fixing arm 11 is fixedly connected to an upper end of the sliding column 20, and the telescopic arm 12 is supported by the fixing arm 11 and can be extended or retracted in a horizontal direction with respect to the fixing arm 11.

According to the hoisting device of this application, can make the length of whole davit subassembly 10 adjustable through setting up flexible arm 12, can satisfy the requirement in more spaces, support by fixed arm 11 through setting up flexible arm 12, can move more stably when flexible arm 12 stretches out or retracts along the horizontal direction, and then guaranteed the stability of hoist and mount heavy object.

An example of the structure of the boom assembly of the present application is shown in fig. 8. As shown in fig. 8, the fixed arm 11 is in a horizontally extending sleeve shape, two ends of the fixed arm 11 are respectively provided with a set of rolling shafts 111 arranged up and down, the telescopic arm 12 is supported on the fixed arm 11 through the rolling shafts 111, the rear end of the telescopic arm 12 is provided with a pull rod 121, and the front end of the telescopic arm 12 is provided with at least one hanging point 122. For example, the number of the lifting points may be 2, the lifting point 122 at the proximal end may be used for lifting a pitch motor, and the lifting point 122 at the distal end may be used for hanging a chain block, a pitch reducer or other components.

According to the hoisting device provided by the application, the telescopic arm 12 can be conveniently pushed to move by arranging the pull rod 121, and the operation is simple. By providing at least one suspension point 122 at the front end of the telescopic boom 12, it is possible to select an appropriate suspension point as needed to complete the maintenance work.

In the embodiment, the height range of the hoisting device is 135cm-150cm, and the whole hoisting device is small in overall height and adjustable in height, so that the hoisting device can be suitable for a narrow space with height limitation.

According to the present application, the sliding column 20 can be used to adjust the orientation of the boom assembly 10 in addition to the lifting function of the lifting device by cooperating with the driving mechanism 50.

Specifically, the sliding column 20 can be rotated relative to the fixed column 30 to adjust the orientation of the boom assembly 10, and the lower end spacer sleeve of the sliding column 20 is provided with at least two wear-resistant sliding sleeves 60, and the outer peripheral surfaces of the wear-resistant sliding sleeves 60 are in contact with the inner side surfaces of the fixed column 30.

In the present embodiment, a bearing may be provided as a rotational connection to enable the sliding column 20 to rotate relative to the fixed column 30.

In order to make the whole device relatively light, as shown in fig. 2, an upper annular boss and a lower annular boss are provided on the lower end of the sliding column 20 (i.e. the end overlapping with the fixed column 30), two wear-resistant sliding sleeves 60 are provided on the annular bosses in a spaced manner, and the outer side walls of the wear-resistant sliding sleeves 60 are in direct contact with the inner side walls of the fixed column 30. Wear-resisting sliding sleeve 60 can be the nylon cover that rigidity is relatively weaker and weight is relatively lighter, compares in setting up the bearing as rotating the connecting piece, sets up wear-resisting sliding sleeve 60 and can reduce the friction to the inside wall of stationary mast 30 to can realize losing the purpose of heavy to whole device, thereby make each part can portable in order to get into narrow and small space.

According to the hoist device of this application, can be with the help of the little characteristics of wear-resisting sliding sleeve 60 frictional force, through setting up wear-resisting sliding sleeve 60, when the position of horizontal direction adjustment davit subassembly 10 is followed to needs, only need manual rotation slip stand 20 alright with the orientation that realizes adjustment davit subassembly 10 to hoist device can satisfy more hoist and mount demands, need not shift again whole hoist device when the switched position. In addition, the wear-resistant sliding sleeve 60 is arranged to prevent parts left unused for a long time from rusting and adhering.

In an embodiment, each part of the hoisting device of the application can be assembled, and according to the hoisting device of the application, the assembly can be realized through the following modes:

step S101, the stationary base 40 and the driving mechanism 50 are assembled. Specifically, the connecting shaft 57 may penetrate through the upper surface of the supporting base plate 42 of the fixing base 40 and both ends of the connecting shaft are respectively connected to the driving handle 56 and the driving gear 51, the driving gear 51 is connected to the driven gear 52, and the driven gear 52 is fixedly connected to the lower end of the screw 53 through a fastener.

Step S102, assembling the limiting rod on the fixed base 40. Specifically, the limiting rod may pass through a corresponding through hole on the supporting base plate 42 of the fixing base 40 and be fixed on the supporting base plate 42.

Step S103, assembling the fixing base 40 to the fixing post 30. Specifically, the connected screw rod 53 and the limiting rod may be inserted into the fixing post 30, and the supporting base plate 42 of the fixing base 40 may be connected to the lower end of the fixing post 30 by using a fastening member.

Step S104, the fixing base 40 is assembled. Specifically, the support foot 41 and the support base plate 42 may be connected by a fastener.

In step S105, the assembly of the drive mechanism 50 is completed. Specifically, the nylon plate 70 may be fixed to the upper surface of the nut 54, and the assembled nut assembly may be fitted over the lead screw 53.

Step S106, the sliding column 20 and the fixed column 30 are assembled. Specifically, the lower end of the lower sliding column 22 may be inserted into the fixed column 30, and the lower end of the upper sliding column 21 may be fixedly connected to the upper end of the lower sliding column 22.

Step S107, the sliding column 20 and the boom assembly 10 are assembled. Specifically, the boom assembly 10 may be attached to the upper end of the upper slide column 21.

Although the embodiments of the present application have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. It will be understood that those skilled in the art will recognize modifications and variations as falling within the spirit and scope of the embodiments of the application as defined by the claims.

Claims

1. A hoisting device, characterized in that, hoisting device includes:

a boom assembly (10);

a sliding upright (20), wherein the upper end of the sliding upright (20) is connected with the suspension arm assembly (10);

the upper end of the fixed upright post (30) is overlapped with the lower end of the sliding upright post (20) and is used for guiding the up-and-down movement of the sliding upright post (20);

the fixed base (40) is arranged at the lower end of the fixed upright post (30) and is used for supporting the fixed upright post (30);

and the driving mechanism (50) is arranged on the fixed base (40), supports the lower end of the sliding upright post (20) and drives the sliding upright post (20) to slide up and down relative to the fixed upright post (30).

2. Hoisting device according to claim 1, characterized in that the drive mechanism (50) comprises:

a drive gear (51);

a driven gear (52) which is engaged with the drive gear (51) and receives a rotational driving force of the drive gear (51);

the lower end of the screw rod (53) is fixedly connected with the driven gear (52);

and the nut (54) is sleeved on the screw rod (53), is in threaded connection with the screw rod (53), can move up and down along the screw rod (53) along with the rotation of the screw rod (53), and the lower end of the sliding upright post (20) is supported on the nut (54).

3. Hoisting device according to claim 2, wherein the fixed upright (30) is a hollow cylinder, the lower end of the sliding upright (20) is inserted in the fixed upright (30), the screw (53) and the nut (54) are arranged inside the fixed upright (30), the drive mechanism (50) further comprises a stop (55), the stop (55) connecting the nut (54) to the fixed upright (30) or to the fixed base (40), preventing the nut (54) from rotating with respect to the screw (53).

4. The hoisting device as recited in claim 3, wherein the lower end of the sliding column (20) is a hollow sleeve, the diameter of the hollow sleeve is larger than that of the screw rod (53), the limiting members (55) are two limiting rods, the lower ends of the limiting rods are fixedly connected to the fixing base (40), two through holes extending up and down are arranged on the nut (54), the upper ends of the two limiting rods are respectively arranged in the two through holes in a penetrating manner, and the limiting rods are located at the radial inner side of the hollow sleeve or at the radial outer side of the hollow sleeve.

5. Hoisting device according to claim 4, wherein the drive mechanism (50) further comprises:

the driving handle (56), the driving handle (56) with driving gear (51) fixed connection for drive driving gear (51) rotate.

6. Hoisting device according to claim 5, characterized in that the boom assembly (10) comprises a fixed arm (11) and a telescopic arm (12), the fixed arm (11) being fixedly connected to the upper end of the sliding column (20), the telescopic arm (12) being supported by the fixed arm (11) and being extendable or retractable in a horizontal direction with respect to the fixed arm (11).

7. The hoisting device as recited in claim 6, wherein the fixed arm (11) is in the shape of a horizontally extending sleeve, a set of rolling shafts (111) arranged up and down are respectively disposed at two ends of the fixed arm (11), the telescopic arm (12) is supported on the fixed arm (11) through the rolling shafts (111), a pull rod (121) is disposed at the rear end of the telescopic arm (12), and two hanging points (122) are disposed at the front end of the telescopic arm (12).

8. Hoisting device according to claim 5 characterized in that the sliding column (20) can be rotated relative to the fixed column (30) to adjust the orientation of the boom assembly (10), the lower end of the sliding column (20) being spacedly sleeved with at least two wear-resistant sliding sleeves (60), the outer peripheral surface of the wear-resistant sliding sleeves (60) being in contact with the inner side surface of the fixed column (30).

9. The hoisting device according to claim 2, characterized in that the nut (54) is a T-shaped nut (54), the outer circumference of the nut (54) keeps a gap with the inner surface of the fixed upright (30), a nylon plate (70) is fixedly arranged on the upper surface of the nut (54), and the lower end of the sliding upright (20) is supported on the nylon plate (70).

10. The hoisting device as recited in claim 2, wherein the fixing base (40) comprises a supporting foot (41) and a supporting bottom plate (42) detachably disposed on the supporting foot (41), the driving gear (51) and the driven gear (52) are disposed on a lower surface of the supporting bottom plate (42), and a lower end of the screw rod (53) passes through the supporting bottom plate (42) to be connected with the driven gear (52).

11. The hoisting device according to claim 1, wherein the sliding column (20) comprises an upper sliding column (21) and a lower sliding column (22) which are detachably connected, the boom assembly (10) is arranged at the upper end of the upper sliding column (21), the lower end of the lower sliding column (22) is combined with the driving mechanism (50), and the height of the hoisting device is in the range of 135cm-150 cm.