All-electric balance type folding crane

Abstract

The utility model belongs to the technical field of hoisting, and particularly relates to a full-electric balance type folding crane which comprises a crane base and a handle component, the handle component is fixedly connected to the left end of the upper side of the crane base, a balancing weight is installed on the left of the upper side of the crane base, and wheels are installed at the front end and the rear end of the crane base. A hoisting mechanism is arranged on the right portion of the upper end of the crane base and comprises a hoisting unit and an adjusting unit. According to the full-electric balance type folding crane, during lifting work, a handle part is held by a hand to push the whole crane to a lifting work position, then an output shaft of a motor is started to rotate to drive a driving bevel gear to rotate, a driven bevel gear rotates to drive a threaded rod to rotate in a threaded hole in a sliding column, the sliding column moves, and the lifting work is completed. And after the lifting component is driven to move to a proper lifting height, the lifting component is started again, so that the lifting hook moves downwards to lift the object.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting technology field, concretely is a full electric balance type folding crane. BACKGROUND

[0002] Crane is the popular appellation of hoist, and has wide application in a series of heavy industry products such as ship, equipment, machinery, mould, etc. From size, crane is divided into small crane and large crane, and large crane is basically fixed, and small crane is basically mobile. Small crane is also called hoist, small hoist, portable hoist. It is a kind of small mechanical equipment with excellent performance and extremely wide application, and is universally applicable to various trades and professions. In the field of automobile manufacturing, small crane is suitable for transporting and suspending automobile accessories.

[0003] But the crane used at present is generally fixed crane, and even so-called mobile crane is also moved along the track, and cannot be moved at will like loader, so that use is limited.

[0004] As disclosed in Chinese patent CN208532058U, the full electric balance type folding crane can be flexibly moved according to the use site, can move objects at will like mobile loader, can hoist objects to the prescribed place, greatly improves the basic hoisting performance and multi-environment applicability of the crane, greatly reduces the cost of hoisting objects, improves work efficiency and other characteristics.

[0005] But the length of the vertical stand in the crane is fixed, so the height of the support beam at the upper end of the stand is fixed, and the range of height adjustment of the hook at the right end by the rotation of the support beam is limited, so it is inconvenient to adjust the height position of the hook according to the height required for hoisting during work.

[0006] Therefore, it is urgent to provide a full electric balance type folding crane capable of hoisting height adjustment. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a full electric balance type folding crane to solve the problems in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical scheme: a full electric balance type folding crane, comprising a crane base and a handle part, the handle part is fixedly connected to the upper left end of the crane base, a counterweight is installed on the upper left side of the crane base, wheels are installed at the front and rear ends of the crane base, a hoisting mechanism is arranged on the right side of the upper end of the crane base, the hoisting mechanism comprises a hoisting unit and an adjusting unit, the hoisting unit is arranged on the right side of the upper end of the crane base, and the adjusting unit is arranged on the right side of the upper end of the crane base.

[0009] The lifting unit comprises a connecting piece fixedly connected to the right end of the upper side of the crane base, a rotating block connected inside the connecting piece, a circular shaft fixedly connected to the inside middle of the rotating block, a fixed ring fixedly connected to the front end of the outside of the circular shaft, a bolt connected inside the fixed ring, a sleeve column fixedly connected to the upper side of the rotating block, a sliding column connected to the inside of the sleeve column, an upper fixed block fixedly connected to the upper end of the sliding column, a rotating rod hingedly connected to the right end of the upper fixed block, a lifting component mounted on the right end of the rotating rod, and a connecting block welded to the upper side of the upper fixed block, and an electric push rod hingedly connected to the right end of the connecting block.

[0010] The adjusting unit comprises a bearing fixedly connected to the inside middle of the bottom end of the sleeve column, a threaded rod fixedly connected to the inside of the bearing, a driven bevel gear fixedly connected to the outside lower end of the threaded rod, an electric motor mounted on the right lower end of the sleeve column, a driving bevel gear fixedly connected to the right end of the output shaft of the electric motor, and a limit block fixedly connected to the middle positions of the left and right ends of the upper side of the sleeve column.

[0011] Further improvements are that a rotating hole is formed above the front and rear ends of the connecting piece, the front and rear ends of the outside of the circular shaft are rotationally connected to the inside of the rotating hole, and the front and rear ends of the inside of the connecting piece are slidingly connected to the front and rear sides of the rotating block, so that the circular shaft can rotate inside and the rotating block can rotate between the connecting pieces.

[0012] Further improvements are that a circular hole is formed in the inside of the fixed ring, a threaded groove is formed around the rotating hole at the front end of the connecting piece, the outside of the bolt is slidingly connected to the inside of the circular hole, and the outside of the bolt is threadedly connected to the inside of the threaded groove, so that after the sleeve column is rotated to the desired angle, the bolt is threadedly connected to the threaded groove after passing through the circular hole, the rotating block can be fixed to the inside of the connecting piece and cannot rotate again.

[0013] Further improvements are that the output shaft right end of the electric push rod is hingedly connected to the upper right end of the rotating rod, so that when the output shaft of the electric push rod is moved, the rotating rod at the right end of the upper fixed block can be pulled to rotate.

[0014] Further improvements are that the driven bevel gear and the driving bevel gear are engaged, so that when the output shaft of the electric motor is rotated to drive the driving bevel gear to rotate, the driven bevel gear can be driven to rotate to make the threaded rod rotate.

[0015] Further improvements are that a vertical threaded hole is formed at the inside middle position of the sliding column, the outside of the threaded rod is threadedly connected to the inside of the threaded hole, and the inside of the sleeve column is slidingly connected to the outside of the sliding column, so that when the threaded rod rotates in the threaded hole inside the sliding column, the sliding column can slide along the inside of the sleeve column.

[0016] A further improvement is that a vertical groove is provided at the middle of the left and right sides of the sliding column, and the outer side of the limiting block is slidably connected to the inner side of the groove, so that when the sliding column slides along the inner side of the sleeve column, the limiting block is located on the inner side of the groove and slides relative to it.

[0017] In summary, this application discloses a fully electric balanced folding crane.

[0018] In this technical solution, when the threaded rod rotates in the threaded hole inside the sliding column, the sliding column can slide along the inner side of the sleeve column, thereby changing the height of the upper fixed block. At the same time, the height of the lifting component changes as well. Thus, the overall length of the vertical sleeve column and sliding column can be changed through this adjustment mechanism, thereby adjusting the overall height of the crane according to the height of the item to be lifted or the height of the work area.

[0019] Furthermore, when the output shaft of the electric push rod is activated and moves, the right end of the rotating rod located on the upper fixed block can be pulled to rotate. This allows the electric push rod to rotate vertically downwards, effectively folding the rotating rod. Then, the motor is activated to move the sliding column down to the inside of the sleeve column. After removing the bolts, the sleeve column is rotated to the left to the upper side of the crane base, thus completing the overall folding of the lifting mechanism. This reduces the overall size of the crane, making it easier to store when the crane is not in use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure at the outer end of the sleeve column and sliding column of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the connector and the rotating block of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the sleeve column of this utility model;

[0024] Figure 5 This is a schematic diagram of the upper structure of the sliding column of this utility model.

[0025] In the diagram: 1. Crane base; 2. Handle assembly; 3. Counterweight; 4. Wheel; 501. Connector; 502. Rotating block; 503. Round shaft; 504. Fixing ring; 505. Bolt; 506. Sleeve column; 507. Sliding column; 508. Upper fixing block; 509. Rotating rod; 510. Lifting component; 511. Connecting block; 512. Electric push rod; 601. Bearing; 602. Threaded rod; 603. Driven bevel gear; 604. Motor; 605. Driven bevel gear; 606. Limit block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figures 1-5 The present application provides a technical solution: a full-electric balanced folding crane, comprising a crane base 1 and a handle component 2, the handle component 2 is fixedly connected to the upper left end of the crane base 1, a counterweight 3 is installed on the upper left side of the crane base 1, wheels 4 are installed at the front and rear ends of the crane base 1, a hoisting mechanism is arranged on the right side of the upper end of the crane base 1, the hoisting mechanism comprises a hoisting unit and an adjusting unit, the hoisting unit is arranged on the right side of the upper end of the crane base 1, and the adjusting unit is arranged on the right side of the upper end of the crane base 1.

[0028] The hoisting unit comprises a connecting piece 501 fixedly connected to the right end of the upper side of the crane base 1, a rotating block 502 connected inside the connecting piece 501, a circular shaft 503 fixedly connected inside the rotating block 502, a rotating hole formed above the front and rear ends of the connecting piece 501, the front and rear ends of the circular shaft 503 are rotatably connected to the inside of the rotating hole, and the front and rear ends of the inside of the connecting piece 501 are slidably connected to the front and rear sides of the rotating block 502, so that the circular shaft 503 can rotate inside, and the rotating block 502 can rotate between the connecting pieces 501.

[0029] The front end of the circular shaft 503 is fixedly connected to a fixed ring 504, the inside of the fixed ring 504 is connected to a bolt 505, the upper side of the rotating block 502 is fixedly connected to a sleeve column 506, a circular hole is formed in the inside of the fixed ring 504, a threaded groove is formed around the rotating hole at the front end of the connecting piece 501, the outside of the bolt 505 is slidably connected to the inside of the circular hole, and the outside of the bolt 505 is threadedly connected to the inside of the threaded groove, so that after the sleeve column 506 is rotated to the desired angle, the bolt 505 is threaded into the threaded groove after passing through the circular hole, and the rotating block 502 is fixedly connected to the inside of the connecting piece 501 and cannot rotate again.

[0030] The inner side of the sleeve column 506 is connected with a sliding column 507, the upper end of the sliding column 507 is fixedly connected with an upper fixed block 508, the right end of the upper fixed block 508 is hingedly connected with a rotating rod 509, the right end of the rotating rod 509 is installed with a lifting component 510, the upper side of the upper fixed block 508 is welded with a connecting block 511, the right end of the connecting block 511 is hingedly connected with an electric push rod 512, the output shaft right end of the electric push rod 512 is hingedly connected with the upper side right end of the rotating rod 509, so that when the output shaft of the electric push rod 512 is started to move, the rotating rod 509 at the right end of the upper fixed block 508 can be pulled to rotate, so that the rotating rod 509 can be pushed vertically downward when the electric push rod 512 is rotated, and the effect of folding the rotating rod 509 is achieved.

[0031] The adjusting unit includes a bearing 601 fixedly connected to the middle position of the bottom end of the inner side of the sleeve column 506, the inner side of the bearing 601 is fixedly connected with a threaded rod 602, the outer side lower end of the threaded rod 602 is fixedly connected with a driven bevel gear 603, the right lower end of the sleeve column 506 is installed with a motor 604, the output shaft right end of the motor 604 is fixedly connected with a driving bevel gear 605, the driven bevel gear 603 and the driving bevel gear 605 are meshed, so that when the output shaft of the motor 604 is started to rotate to drive the driving bevel gear 605 to rotate, the driven bevel gear 603 can be driven to rotate to make the threaded rod 602 rotate.

[0032] A vertical threaded hole is formed in the middle position of the inner side of the sliding column 507, the outer side of the threaded rod 602 is threadedly connected with the inner side of the threaded hole, the inner side of the sleeve column 506 is slidingly connected with the outer side of the sliding column 507, so that when the threaded rod 602 rotates in the threaded hole in the inner side of the sliding column 507, the sliding column 507 can slide along the inner side of the sleeve column 506, so that the height of the upper end of the upper fixed block 508 is changed, and the height of the lifting component 510 is also changed, and the overall length of the vertical sleeve column 506 and the sliding column 507 can be changed through the adjusting mechanism, so that the overall height of the crane can be adjusted according to the height of the goods to be lifted or the height of the working room.

[0033] The middle positions of the left and right ends of the upper side of the sleeve column 506 are fixedly connected with limit blocks 606, vertical sliding grooves are formed in the middle positions of the left and right sides of the sliding column 507, the outer sides of the limit blocks 606 are slidingly connected with the inner sides of the sliding grooves, so that when the sliding column 507 slides along the inner side of the sleeve column 506, the limit blocks 606 slide relative to the inner sides of the sliding grooves, so that due to the limitation of the sliding grooves, the sliding column 507 will not move out of the upper end of the sleeve column 506.

[0034] Working principle: when hoisting work is carried out, first hold the handle part 2 to push the whole crane to the hoisting work position, then start the motor 604, the output shaft rotates to drive the driving bevel gear 605 to rotate, so that the driven bevel gear 603 rotates to drive the threaded rod 602 in the threaded hole inside the sliding column 507 to rotate, so that the sliding column 507 moves, until the hoisting part 510 moves to the appropriate hoisting height, then start the hoisting part 510 to make the lifting hook descend to hoist the goods.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying that these entities or actions are in any way mutually exclusive or directional. Moreover, the terms "comprising", "including", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

Claims

1. A full electric balanced folding crane comprising a crane base (1) and a handle part (2) fixedly connected to the upper left end of the crane base (1), characterized in that: The counterweight (3) is installed on the upper left side of the crane base (1), wheels (4) are installed at the front and rear ends of the crane base (1), a hoisting mechanism is arranged on the upper right side of the crane base (1), the hoisting mechanism comprises a hoisting unit and an adjusting unit, the hoisting unit is arranged on the upper right side of the crane base (1), and the adjusting unit is arranged on the upper right side of the crane base (1); The hoisting unit comprises a connecting piece (501) fixedly connected to the upper right end of the crane base (1), a rotating block (502) is connected in the connecting piece (501), a circular shaft (503) is fixedly connected to the inner middle part of the rotating block (502), a fixed ring (504) is fixedly connected to the front end of the outer side of the circular shaft (503), a bolt (505) is connected in the fixed ring (504), a sleeve column (506) is fixedly connected to the upper side of the rotating block (502), a sliding column (507) is connected to the inner side of the sleeve column (506), an upper fixed block (508) is fixedly connected to the upper end of the sliding column (507), a rotating rod (509) is hingedly connected to the right end of the upper fixed block (508), a hoisting component (510) is installed on the right end of the rotating rod (509), a connecting block (511) is welded on the upper side of the upper fixed block (508), and an electric push rod (512) is hingedly connected to the right end of the connecting block (511). The adjusting unit comprises a bearing (601) fixedly connected to the inner middle position of the bottom end of the sleeve column (506), a threaded rod (602) is fixedly connected to the inner side of the bearing (601), a driven bevel gear (603) is fixedly connected to the outer side of the lower end of the threaded rod (602), an electric motor (604) is installed on the right lower end of the sleeve column (506), a driving bevel gear (605) is fixedly connected to the output shaft right end of the electric motor (604), and limit blocks (606) are fixedly connected to the intermediate positions of the left and right ends of the upper side of the sleeve column (506).

2. A fully electrically balanced folding crane according to claim 1, characterized in that: The connecting piece (501) is provided with a rotating hole in the upper side of the front and rear ends, the outer sides of the front and rear ends of the circular shaft (503) are rotatably connected to the inner side of the rotating hole, and the front and rear ends of the inner side of the connecting piece (501) are slidably connected to the front and rear sides of the rotating block (502).

3. A fully electrically balanced folding crane according to claim 1, characterized in that: The fixed ring (504) is provided with a circular hole in the inner side, the front end of the connecting piece (501) is provided with a threaded groove around the rotating hole, the outer side of the bolt (505) is slidably connected to the inner side of the circular hole, and the outer side of the bolt (505) is threadedly connected to the inner side of the threaded groove.

4. A fully electrically balanced folding crane according to claim 1, characterized in that: The output shaft right end of the electric push rod (512) is hingedly connected to the upper right end of the rotating rod (509).

5. A fully electrically balanced folding crane as claimed in claim 1, characterized in that: The driven bevel gear (603) and the driving bevel gear (605) are engaged.

6. A fully electrically balanced folding crane as claimed in claim 1, characterized in that: A vertical threaded hole is formed in the inner middle position of the sliding column (507), the outer side of the threaded rod (602) is threadedly connected to the inner side of the threaded hole, and the inner side of the sleeve column (506) is slidably connected to the outer side of the sliding column (507).

7. A fully electrically balanced folding crane as claimed in claim 1, characterized in that: The vertical sliding slot is arranged at the middle of the left and right sides of the sliding column (507), and the outer side of the limiting block (606) is in sliding connection with the inner side of the sliding slot.

Images