CN211393580U

CN211393580U - Three-arm lifting appliance

Info

Publication number: CN211393580U
Application number: CN201922269490.6U
Authority: CN
Inventors: 于海洋; 米伟; 任神通; 米欢
Original assignee: Baoding Aofa Lifting Equipment Manufacturing Co ltd
Current assignee: Baoding Aofa Lifting Equipment Manufacturing Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-01
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a three-arm lifting appliance, which comprises a hanging scaffold, wherein three ends of the edge of the bottom of the hanging scaffold are provided with hinged seats, pull arms are hinged below the hinged seats, one ends of the pull arms are hinged with clamp arms, and the lower parts of the clamp arms are hinged with a lower beam, the lower end of the lower beam is provided with a support plate, the support plate is provided with chutes, the chutes are equidistantly provided with three groups, the outer ends of three sides of the lower beam are hinged with connecting arms, the bottom ends of the clamp arms and the connecting arms in each group are hinged with lower tong feet, and the lower ends outside the lower tong feet are provided with rubber anti-skid pads; the utility model discloses during the use, mention the platform sling arm-drag through the lug, make the arm lock lower extreme outwards rotatory on the underbeam, the cooperation linking arm will lower tong foot along the outside propelling movement of spout, the outside propelling movement of three group's lower tong feet can follow pipe work piece hole and provide a tension to the inner wall of pipe fitting, with pipe fitting chucking, convenient hoist and mount, and cooperation rubber slipmat, be difficult for the bruise and bruise, the protection work piece.

Description

Three-arm lifting appliance

Technical Field

The utility model relates to a hoist technical field especially relates to a three-arm hoist.

Background

The lifting appliance is a device for lifting a heavy object in a lifting machine. The most common lifting appliances for lifting finished articles are lifting hooks and lifting straps, other lifting rings, lifting suckers, clamps, forks and the like, and are widely applied to the lifting and hoisting industry,

the rope hoist and mount is passed through to current hoist general for the couple formula, perhaps hoists in outside centre gripping article, however, to some tubular or anomalous articles, current hoist and mount is just more troublesome, consequently, the utility model provides a three-arm hoist is in order to solve the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a three-arm lifting appliance, when this three-arm lifting appliance used, mention the hanging scaffold pulling single arm through the lug, make the arm lock lower extreme outwards rotatory on the underbeam, the cooperation linking arm is with the lower tong foot along the outside propelling movement of spout, the outside propelling movement of three group's lower tong feet can be followed pipe work piece hole and is provided a tension to the inner wall of pipe fitting, with pipe fitting chucking, convenient hoist and mount, and cooperation rubber slipmat, the difficult bruise that collides with damages, the protection work piece.

In order to solve the problem, the utility model provides a three-arm lifting appliance, including the hanging scaffold, the three-terminal of hanging scaffold bottom edge all is equipped with articulated seat, and articulated have a single arm-drag, three group under the articulated seat the one end of single arm-drag all articulates there is the arm-drag, and three groups the below of arm-drag articulates there is the underbeam, the lower extreme of underbeam is equipped with the layer board, and is equipped with the spout on the layer board, the spout equidistance is equipped with three groups, the trilateral outer end of underbeam all articulates there is the linking arm, every group the bottom of arm-drag and linking arm all articulates there is lower tong foot, and the lower extreme in the lower tong foot outside all is equipped with the rubber slipmat, lower tong foot passes the spout, the intermediate position department of underbeam is equipped with the lock pipe, and is equipped with the locked groove on the lock pipe, the intermediate position department of hanging.

The further improvement lies in that: first hexagon screws penetrate through the hinged seats, one ends of the first hexagon screws are fixed through hexagon nuts matched with the flat washers, and the pull arms are hinged to the first hexagon screws.

The further improvement lies in that: the top edge of the opening and closing device is provided with a screw hole, and the screw hole is matched with a spring washer through a second hexagon screw to fix the opening and closing device below the hanging scaffold.

The further improvement lies in that: the opening and closing device comprises a lock sleeve and a lock cylinder, the lock cylinder is movably inserted in the lock sleeve, and a lock head matched with the lock groove is arranged at the bottom of the lock cylinder.

The further improvement lies in that: clamping rods penetrate through threads on two sides of the lock sleeve, and a shifting groove matched with the clamping rods is formed in the side wall of the lock core.

The utility model has the advantages that: when the utility model is used, the hanging scaffold is lifted by the lifting lugs to pull the pull arm, so that the lower end of the clamp arm rotates outwards on the lower beam, the lower clamp feet are pushed outwards along the sliding groove by matching with the connecting arm, three groups of lower clamp feet are pushed outwards, tension can be provided for the inner wall of a round pipe fitting from the inner hole of the round pipe fitting, the round pipe fitting is clamped and conveniently hoisted, and the round pipe fitting is not easy to be damaged and bruised by matching with a rubber anti-skid pad, so as to protect the fitting, meanwhile, when not in use, the hanging scaffold can be pressed, so that the pull arm and the clamp arm are folded, the lock head of the open-close device is inserted into the lock groove, the lock head rotates 90 degrees in the lock sleeve by relying on the self weight and the matching action of the stirring groove and the clamping rod, and is similar to a ball pen structure which is pressed, so that the lock head rotates to clamp the lock groove, thereby saving space and, is convenient to use.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the hanging scaffold of the present invention;

fig. 4 is a schematic view of the hinge of the present invention;

FIG. 5 is a schematic view of the opening and closing device of the present invention;

fig. 6 is a sectional view of the hoist of the present invention;

fig. 7 is a schematic view of the lock cylinder of the present invention.

Wherein: 1. a hanging scaffold; 2. a hinged seat; 3. pulling the arm; 4. clamping arms; 5. a lower beam; 6. a support plate; 7. a chute; 8. a connecting arm; 9. a lower clamp foot; 10. locking the tube; 11. locking the groove; 12. an opening and closing device; 13. lifting lugs; 14. a first hexagonal screw; 15. a hexagonal nut; 16. a second hexagonal screw; 17. a lock sleeve; 18. a lock cylinder; 19. a lock head; 20. a clamping rod; 21. the groove is toggled.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to figures 1, 2, 3, 4, 5, 6 and 7, the embodiment provides a three-arm lifting appliance, which comprises a hanging scaffold 1, wherein three ends of the bottom edge of the hanging scaffold 1 are respectively provided with a hinged seat 2, the hinged seats 2 are hinged with pull arms 3, one ends of three groups of pull arms 3 are respectively hinged with a clamping arm 4, the lower parts of the three groups of clamping arms 4 are hinged with a lower beam 5, the lower end of the lower beam 5 is provided with a supporting plate 6, the supporting plate 6 is provided with a sliding groove 7, the sliding grooves 7 are equidistantly provided with three groups, the three outer edges of the lower beam 5 are respectively hinged with a connecting arm 8, the bottom ends of the clamping arms 4 and the connecting arms 8 of each group are respectively hinged with a lower clamp foot 9, the lower end of the outer side of each lower clamp foot 9 is respectively provided with a rubber anti-slip pad, the lower clamp foot 9 passes through the sliding groove 7, the middle position of the lower beam 5 is provided with a locking pipe 10, the locking groove 11 is, and a lifting lug 13 is arranged at the middle position of the top of the hanging scaffold 1. During the use, mention 1 pulling arm 3 of platform sling through the lug, make 4 lower extremes of arm lock outwards rotatory on underbeam 5, cooperation linking arm 8 with lower tong foot 9 along 7 outside propelling movement of spout, three group's lower tong feet 9 are outside propelling movement, can follow the inner wall of pipe work piece hole to pipe fitting and provide a tension, with pipe fitting chucking.

First hexagon screw 14 has run through on articulated seat 2, and the one end of first hexagon screw 14 is fixed through hexagon nut 15 cooperation plain washer, single arm-drag 3 articulates on first hexagon screw 14.

The top edge of the open-close device 12 is provided with a screw hole, and the screw hole fixes the open-close device 12 under the hanging scaffold 1 through a second hexagon screw 16 in cooperation with a spring washer.

The open-close device 12 comprises a lock sleeve 17 and a lock core 18, the lock core 18 is movably inserted in the lock sleeve 17, and a lock head 19 matched with the lock groove 11 is arranged at the bottom of the lock core 18.

Clamping rods 20 penetrate through the threads on the two sides of the lock sleeve 17, and toggle grooves 21 matched with the clamping rods 20 are formed in the side wall of the lock core 18. When not in use, can press the platform sling 1, make single arm-drag 3 and arm-drag 4 fold, insert the locked groove 11 with the tapered end of opening and close ware 12, the lock core 18 relies on the dead weight and stirs the mating reaction of groove 21 and kelly 20, at 90 degrees of internal rotation of lock sleeve 17, similar ballpoint pen structure of pressing, make tapered end 19 rotatory card locked groove 11, only need press once more when needing reuse and open and close ware 12, make the tapered end 18 rotatory 90 degrees once more, thereby make tapered end 19 break away from in the locked groove 11 can.

When the three-arm lifting appliance is used, the lifting disc 1 is lifted through the lifting lugs to pull the pull arm 3, the lower end of the clamping arm 4 is enabled to rotate outwards on the lower beam 5, the lower clamp feet 9 are pushed outwards along the sliding groove 7 by the aid of the connecting arm 8, three groups of lower clamp feet 9 are pushed outwards, tension can be provided for the inner wall of a round pipe fitting from the inner hole of the round pipe fitting, the round pipe fitting is clamped and conveniently lifted, the rubber anti-slip pad is matched, the round pipe fitting is not prone to being damaged and bruised, the work piece is protected, meanwhile, when the three-arm lifting appliance is not used, the lifting disc 1 can be pressed, the pull arm 3 and the clamping arm 4 are folded, the lock head of the opener 12 is inserted into the lock groove 11, the lock head 18 rotates 90 degrees in the lock sleeve 17 by virtue of self weight and the matching effect of the poking groove 21 and the clamping rod 20, the lock head 19 rotates to clamp the lock groove 11, space is saved, the storage, thereby the lock 19 can be separated from the lock groove 11, and the use is convenient.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a three arm hoist, includes platform sling (1), its characterized in that: the three ends of the bottom edge of the hanging scaffold (1) are provided with hinged seats (2), the hinged seats (2) are hinged with pull arms (3) downwards, one ends of the pull arms (3) of three groups are hinged with clamping arms (4), the lower parts of the clamping arms (4) of three groups are hinged with underbeams (5), the lower ends of the underbeams (5) are provided with supporting plates (6), the supporting plates (6) are provided with chutes (7), the chutes (7) are equidistantly provided with three groups, the three-edge outer ends of the underbeams (5) are hinged with connecting arms (8), the bottom ends of the clamping arms (4) and the connecting arms (8) of each group are hinged with lower clamp feet (9), the lower ends of the outer sides of the lower clamp feet (9) are provided with rubber anti-skid pads, the lower clamp feet (9) penetrate through the chutes (7), the middle positions of the underbeams (5) are provided with lock tubes (10), and lock grooves (11, an opening and closing device (12) is installed at the middle position of the bottom of the hanging scaffold (1), and a lifting lug (13) is arranged at the middle position of the top of the hanging scaffold (1).

2. A three-armed spreader as claimed in claim 1, wherein: articulated seat (2) go up to run through and have first hex head screw (14), and the one end of first hex head screw (14) is fixed through hexagon nut (15) cooperation plain washer, single arm-drag (3) articulate on first hex head screw (14).

3. A three-armed spreader as claimed in claim 1, wherein: the top edge of the opening and closing device (12) is provided with a screw hole, and the screw hole is used for fixing the opening and closing device (12) below the hanging scaffold (1) through a second hexagon screw (16) in cooperation with a spring washer.

4. A three-armed spreader as claimed in claim 1, wherein: the starting and stopping device (12) comprises a lock sleeve (17) and a lock cylinder (18), the lock cylinder (18) is movably inserted in the lock sleeve (17), and a lock head (19) matched with the lock groove (11) is arranged at the bottom of the lock cylinder (18).

5. A three-arm spreader according to claim 4, in which: clamping rods (20) penetrate through threads on two sides of the lock sleeve (17), and a shifting groove (21) matched with the clamping rods (20) is formed in the side wall of the lock core (18).