CN215946602U

CN215946602U - Electric hoist with prevent function of falling

Info

Publication number: CN215946602U
Application number: CN202120780531.2U
Authority: CN
Inventors: 孙云飞
Original assignee: Anhui Mingwei Technology Development Co ltd
Current assignee: Anhui Mingwei Technology Development Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-03-04
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses an electric hoist with an anti-falling function, which comprises a box body, wherein a first rotating shaft is movably connected with the inner wall of the box body, a winding drum is sleeved on the outer wall of the first rotating shaft in the box body, a long-strip-shaped through hole is formed in the bottom of the box body below the winding drum, a steel wire rope is arranged on the inner wall of the winding drum, a connecting shaft and an L-shaped connecting block are arranged on the outer side of the winding drum on the inner side wall of the box body, a movably connected electric push rod is arranged on the side wall of the L-shaped connecting block and connected with the L-shaped connecting block through a second rotating shaft, a movably connected connecting plate is arranged at one end of the electric push rod and connected with the electric push rod through a third rotating shaft, a through hole is formed in one side, away from the third rotating shaft, a rolling bearing is arranged in the through hole, the connecting shaft is connected with the inner wall of the rolling bearing, and a friction plate is obliquely arranged on one side, close to the bottom of the through hole. The electric hoist anti-falling device is convenient and quick to use, can prevent the electric hoist from falling, and is convenient to improve the safety of work.

Description

Electric hoist with prevent function of falling

Technical Field

The utility model relates to the technical field of electric hoists, in particular to an electric hoist with a falling prevention function.

Background

The electric hoist is a special lifting equipment, is installed on overhead traveling cranes and gantry cranes, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, storage, docks and the like. The electric hoist has compact structure, and the motor axis is vertical to the electric hoist of the winding drum axis by adopting a worm gear transmission device. The electric block is generally installed on a single-beam crane, a bridge crane, a gantry crane and a suspension crane. The said device can be used as hoist after being slightly modified. Therefore, it is a necessary machine for improving labor efficiency and improving labor conditions. The hydraulic system is dual control, and the overflow regulating valve and the magnetic contact pressure gauge can accurately control the pressure. The electric appliance control department adopts low voltage control, and the safety of the governing system is increased.

The existing electric hoist is likely to fall off in the use process, so that the working safety is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an electric hoist with a falling prevention function, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

an electric hoist with an anti-falling function comprises a box body, wherein the inner wall of the box body is provided with a first rotating shaft which is movably connected, the outer wall of the first rotating shaft is sleeved with a winding drum in the box body, the bottom of the box body is provided with a long-strip-shaped through hole below the winding drum, the inner wall of the winding drum is provided with a steel wire rope, the steel wire rope penetrates through the long-strip-shaped through hole, one end of the steel wire rope is provided with a first hook outside the box body, the inner side wall of the box body is provided with a connecting shaft and an L-shaped connecting block outside the winding drum, the side wall of the L-shaped connecting block is provided with an electric push rod which is movably connected, the electric push rod is connected with the L-shaped connecting block through a second rotating shaft, one end of the electric push rod is provided with a movably connected connecting plate, the electric push rod is connected with the connecting plate through a third rotating shaft, and one side of the connecting plate side wall, which is far away from the third rotating shaft, is provided with a through hole, the connecting plate is characterized in that a rolling bearing is arranged in the through hole, the connecting shaft is connected with the inner wall of the rolling bearing, a friction plate is obliquely arranged at the bottom of the connecting plate close to one side of the through hole, a supporting rod is arranged at one side of the side wall of the friction plate close to the L-shaped connecting block, and one end of the supporting rod is connected with the bottom of the connecting plate.

Preferably, the box top is kept away from reel one side is equipped with the protection casing, protection casing inner wall top is equipped with the mounting bracket, the mounting bracket bottom is equipped with the motor, the output shaft one end of motor is equipped with the fourth pivot, the fourth pivot is passed the protection casing bottom, the fourth pivot is passed the box top, fourth pivot outer wall in the box cover is equipped with first bevel gear, first pivot outer wall cover is equipped with second bevel gear, first bevel gear with second bevel gear meshes mutually, the box top is equipped with the connecting rod, connecting rod one end is equipped with the second couple.

Preferably, the first rotating shaft and the winding drum are in key connection, the first rotating shaft and the second bevel gear are in key connection, and the fourth rotating shaft and the first bevel gear are in key connection.

Preferably, the connecting rod is in threaded connection with the box body, and the connecting rod is in threaded connection with the second hook.

Preferably, a plurality of first protrusions are arranged on one side, close to the friction plate, of the side wall of the winding drum, and a plurality of second protrusions are arranged on one side, close to the winding drum, of the side wall of the friction plate.

Preferably, the side wall of the protective cover is provided with a plurality of air holes.

Compared with the prior art, the utility model has the following beneficial effects: this electric block with function of preventing falling through setting up connecting axle, L shape connecting block, electric putter, second pivot, connecting plate, third pivot, through-hole, antifriction bearing, friction plate and bracing piece, can realize preventing that electric block from falling, is convenient for improve the security of work.

Drawings

Fig. 1 is a schematic view of the overall structure of an electric hoist with a fall prevention function according to the present invention.

Fig. 2 is a schematic view of the internal structure of the shield.

Fig. 3 is a schematic diagram of the internal structure of the box body.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a box body; 2. a first rotating shaft; 3. a reel; 4. a strip-shaped through hole; 5. a wire rope; 6. a first hook; 7. a connecting shaft; 8. an L-shaped connecting block; 9. an electric push rod; 10. a second rotating shaft; 11. a connecting plate; 12. a third rotating shaft; 13. a through hole; 14. a rolling bearing; 15. a friction plate; 16. a support bar; 17. a protective cover; 18. a mounting frame; 19. a motor; 20. a fourth rotating shaft; 21. a first bevel gear; 22. A second bevel gear; 23. a connecting rod; 24. and a second hook.

Detailed Description

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

As shown in figures 1-4, an electric hoist with anti-falling function comprises a box body 1, a first rotating shaft 2 movably connected is arranged on the inner wall of the box body 1, a winding drum 3 is sleeved on the outer wall of the first rotating shaft 2 in the box body 1, a strip-shaped through hole 4 is arranged at the bottom of the box body 1 below the winding drum 3, a steel wire rope 5 is arranged on the inner wall of the winding drum 3, the steel wire rope 5 passes through the strip-shaped through hole 4, a first hook 6 is arranged at one end of the steel wire rope 5 outside the box body 1, a connecting shaft 7 and an L-shaped connecting block 8 are arranged on the outer side wall of the inner side of the box body 1 outside the winding drum 3, an electric push rod 9 movably connected is arranged on the side wall of the L-shaped connecting block 8, the electric push rod 9 is connected with the L-shaped connecting block 8 through a second rotating shaft 10, a connecting plate 11 movably connected is arranged at one end of the electric push rod 9, the electric push rod 9 is connected with the connecting plate 11 through a third rotating shaft 12, a through hole 13 is arranged on the side wall of the connecting plate 11 far away from the third rotating shaft 12, a rolling bearing 14 is arranged in the through hole 13, the connecting shaft 7 is connected with the inner wall of the rolling bearing 14, a friction plate 15 is obliquely arranged on one side, close to the through hole 13, of the bottom of the connecting plate 11, a supporting rod 16 is arranged on one side, close to the L-shaped connecting block 8, of the side wall of the friction plate 15, and one end of the supporting rod 16 is connected with the bottom of the connecting plate 11.

Keep away from reel 3 one side at 1 top of box and be equipped with protection casing 17, protection casing 17 inner wall top is equipped with mounting bracket 18, mounting bracket 18 bottom is equipped with motor 19, motor 19's output shaft one end is equipped with fourth pivot 20, fourth pivot 20 passes protection casing 17 bottom, fourth pivot 20 passes 1 top of box, the 20 outer walls of fourth pivot are equipped with first bevel gear 21 in 1 endotheca of box, 2 outer wall covers of first pivot are equipped with second bevel gear 22, first bevel gear 21 and second bevel gear 22 mesh mutually, 1 top of box is equipped with connecting rod 23, connecting rod 23 one end is equipped with second couple 24.

The first rotating shaft 2 and the winding drum 3 are in key connection, the first rotating shaft 2 and the second bevel gear 22 are in key connection, and the fourth rotating shaft 20 and the first bevel gear 21 are in key connection; the connecting rod 23 is in threaded connection with the box body 1, and the connecting rod 23 is in threaded connection with the second hook 24; a plurality of first protrusions are arranged on one side, close to the friction plate 15, of the side wall of the winding drum 3, and a plurality of second protrusions are arranged on one side, close to the winding drum 3, of the side wall of the friction plate 15; the side wall of the protective cover 17 is provided with a plurality of air holes.

When the electric hoist is used, when the electric hoist falls, the electric push rod 9 is turned on to contract the power supply, the electric push rod 9 drives the connecting plate 11 to move through the third rotating shaft 12, the connecting plate 11 rotates along the connecting shaft 7 through the rolling bearing 14, the connecting plate 11 drives the friction plate 15 to rotate, the friction plate 15 rotates towards one side of the winding drum 3, the second protrusions on the friction plate 15 extrude the first protrusions on the side wall of the winding drum 3, the winding drum 3 stops rotating quickly, the steel wire rope 5 stops falling quickly, and the safety of work is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electric block with prevent function of falling, includes box (1), its characterized in that: the inner wall of the box body (1) is provided with a first rotating shaft (2) in movable connection, the outer wall of the first rotating shaft (2) is provided with a winding drum (3) in the box body (1) in a sleeved mode, a long-strip-shaped through hole (4) is formed in the bottom of the box body (1) below the winding drum (3), the inner wall of the winding drum (3) is provided with a steel wire rope (5), the steel wire rope (5) penetrates through the long-strip-shaped through hole (4), one end of the steel wire rope (5) is provided with a first hook (6) outside the box body (1), the inner side wall of the box body (1) is provided with a connecting shaft (7) and an L-shaped connecting block (8) outside the winding drum (3), the side wall of the L-shaped connecting block (8) is provided with an electric push rod (9) in movable connection, the electric push rod (9) is connected with the L-shaped connecting block (8) through a second rotating shaft (10), one end of the electric push rod (9) is provided with a connecting plate (11) in movable connection, electric putter (9) with connecting plate (11) are connected through third pivot (12), through-hole (13) have been seted up to third pivot (12) one side to connecting plate (11) lateral wall, be equipped with antifriction bearing (14) in through-hole (13), connecting axle (7) with antifriction bearing (14) inner wall connection, connecting plate (11) bottom is close to through-hole (13) lopsidedness is equipped with friction plate (15), friction plate (15) lateral wall is close to L shape connecting block (8) one side is equipped with bracing piece (16), bracing piece (16) one end with connecting plate (11) bottom is connected.

2. The electric block with the fall prevention function as claimed in claim 1, wherein: keep away from box (1) top reel (3) one side is equipped with protection casing (17), protection casing (17) inner wall top is equipped with mounting bracket (18), mounting bracket (18) bottom is equipped with motor (19), the output shaft one end of motor (19) is equipped with fourth pivot (20), fourth pivot (20) are passed protection casing (17) bottom, fourth pivot (20) are passed box (1) top, fourth pivot (20) outer wall in box (1) endotheca is equipped with first bevel gear (21), first pivot (2) outer wall cover is equipped with second bevel gear (22), first bevel gear (21) with second bevel gear (22) mesh mutually, box (1) top is equipped with connecting rod (23), connecting rod (23) one end is equipped with second couple (24).

3. The electric block with fall arrest function of claim 2, characterized in that: the first rotating shaft (2) and the winding drum (3) are connected through a key, the first rotating shaft (2) and the second bevel gear (22) are connected through a key, and the fourth rotating shaft (20) and the first bevel gear (21) are connected through a key.

4. The electric block with fall arrest function of claim 2, characterized in that: the connecting rod (23) is in threaded connection with the box body (1), and the connecting rod (23) is in threaded connection with the second hook (24).

5. The electric block with the fall prevention function as claimed in claim 1, wherein: the side wall of the winding drum (3) is close to one side of the friction plate (15) and is provided with a plurality of first protrusions, and the side wall of the friction plate (15) is close to one side of the winding drum (3) and is provided with a plurality of second protrusions.

6. The electric block with fall arrest function of claim 2, characterized in that: the side wall of the protective cover (17) is provided with a plurality of air holes.