CN116216565A

CN116216565A - Multifunctional pulley device

Info

Publication number: CN116216565A
Application number: CN202310204795.7A
Authority: CN
Inventors: 张枫; 周志平; 张龙
Original assignee: Dongguan Gaoxin Craftsman Mechanical And Electrical Equipment Installation Service Co ltd
Current assignee: Dongguan Gaoxin Craftsman Mechanical And Electrical Equipment Installation Service Co ltd
Priority date: 2023-03-04
Filing date: 2023-03-04
Publication date: 2023-06-06

Abstract

The invention belongs to the technical field of pulleys, and particularly relates to a multifunctional pulley device, which comprises a main shell, wherein one end of the main shell is provided with an electric drill connection port and a rebound release handle, the other end of the main shell is provided with a rope pulley, the outer side of the rope pulley is provided with a movable side plate hinged with the main shell, a main gear connected with the rope pulley is arranged in the main shell, one side of the main gear is meshed with a pinion, the pinion is connected with the electric drill connection port, a one-way bearing is arranged between the electric drill connection port and the pinion, and a rope pressing rod is arranged on the movable side plate.

Description

Multifunctional pulley device

Technical Field

The invention belongs to the technical field of pulleys, and particularly relates to a multifunctional pulley device.

Technical Field

A typical pulley is a round wheel that is rotatable about a central axis. The circumference of the round wheel is provided with a groove, the rope is wound on the groove, and the friction force between the rope and the round wheel can cause the round wheel to rotate around the central shaft when any one of the two ends of the rope is pulled by force. The pulley is in effect a deformed, rotatable lever. The main functions of the pulley are to pull the load, change the direction of application of force, transmit power, etc. Pulleys may also be a component of a chain or belt drive to transfer power from one rotating shaft to another.

The pulley is widely applied in high altitude construction and lift by crane the heavy object, and in actual operation, the pulley that commonly used often can appear because of the workman or the goods that the cooperation problem of pulley and rope leads to falls, causes huge risk for the user, and at the in-process that descends, the pulley can't spontaneously control dangerous situation, is unfavorable for user's use, and the pulley that commonly used can not install in arbitrary section of rope simultaneously also can not realize manual operation or electric auxiliary operation in the function of an organic whole, consequently, need improve it.

Disclosure of Invention

The invention aims to make up the defects of the prior art and provides a multifunctional pulley device.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a multi-functional pulley device, includes the main casing, main casing one end is provided with electric drill connection mouth and the release handle that can kick-backs, the main casing other end is provided with the rope sheave, the rope sheave outside is provided with the articulated movable side board with the main casing, be provided with the master gear who is connected with the rope sheave in the main casing, master gear one side meshing has the pinion, the pinion is connected with electric drill connection mouth, be provided with one-way bearing between electric drill connection mouth and the pinion, install the rope pressing stick on the movable side board, main casing one side is provided with two friction hooks, be provided with the friction stick of being connected with the main casing between two friction hooks.

Further, a pawl latch is hinged in the main shell, and the pawl latch is elastically abutted to one side of the main gear.

Further, a rotatable release shaft is arranged at an included angle formed by meshing the pawl latch and the main gear, extends to the outer side of the main shell and is connected with the release handle, and a plane end is arranged on one side of the release shaft.

Further, the release handle is provided with a torsion spring, the torsion spring comprises a first torsion spring and a second torsion spring, the release handle comprises a connecting end and a rebound end, the release shaft is connected with one end of the connecting end and is provided with the first torsion spring, and the other end of the connecting end is hinged with the rebound end and is provided with the second torsion spring.

Further, the movable side plate is hinged to the main shell through the first guide wheel column, the second guide wheel column is installed on the main shell, a bayonet is arranged on one side of the movable side plate, and the bayonet can be clamped to the second guide wheel column in a clutchable mode.

Further, the bottom end of the main shell is provided with a main lock hole, and the bottom end of the movable side plate is provided with an auxiliary lock hole which can be overlapped with the main lock hole.

Further, the rope pressing rod is rotatably arranged on the movable side plate, and the main shell is provided with a protruding point for blocking and limiting the rope pressing rod.

Further, the friction hook comprises a first friction hook and a second friction hook, wherein the first friction hook is fixedly arranged at the bottom end of the main shell, the second friction hook is fixedly arranged at the top end of the main shell, and the opening directions of the first friction hook and the second friction hook are outwards.

Further, the friction bar is fixedly connected to one side of the main shell.

Further, a clamping groove for accommodating the rope is formed in the rope pulley, and concave-convex opposite surfaces are arranged on the left side wall and the right side wall of the clamping groove.

The invention has the beneficial effects that: after the scheme is adopted, the bearing type rope pressing rod is added, after the rope is assembled, the rope pressing rod and the rope wheel slightly extrude the rope, no matter the rope is loaded or unloaded, the rope wheel can drive the rope to run, the rope can run smoothly without obstruction, the rope can be quickly recovered, thereby the working efficiency is improved, the friction force can be adjusted according to the weight difference of a falling weight by newly adding the friction rod and two dislocation friction hooks, the rope can be wound in different modes, the friction force can be not contacted with a shell when the rope runs, the service life of the device is prolonged, the unidirectional power input function is increased, the anticlockwise input power is realized, the clockwise idle running is realized, the phenomenon that an electric drill is reversely wound due to the error of the input power direction is effectively avoided, the safety is increased, the release handle automatically rebounds to the locking gear, the side of the device can be stored, other operations are not hindered, and the device is more attractive. The electric drill rope pulling and releasing device can be used as a fixed pulley or a movable pulley, can also be matched with a plurality of pulleys to form a labor saving system, has a self-locking function, can smoothly and stably release goods by pulling the releasing handle, has high safety performance, can be manually operated, can be used for assisting operation of the electric drill, and can be used for achieving rapid rope pulling and releasing by the electric drill, and has a simple structure and is convenient to use.

Description of the drawings

FIG. 1 is a schematic diagram of the overall frontal structure of the present invention;

FIG. 2 is a schematic view of the overall reverse side structure of the present invention;

FIG. 3 is a schematic diagram of the overall internal structure of the present invention;

FIG. 4 is a schematic view of the primary gear, secondary gear, pawl latch and release handle configuration;

fig. 5 is a schematic view of the sheave, rope pressing bar and movable side plate structure of the present invention;

fig. 6 is a schematic diagram of the sheave and rope connection of the present invention;

FIG. 7 is a schematic view of the release handle and first torsion spring arrangement of the present invention;

FIG. 8 is a schematic view of the release handle and second torsion spring arrangement of the present invention;

FIG. 9 is an enlarged schematic view of the one-way bearing component of the present invention;

FIG. 10 is an enlarged schematic view of the pawl latch feature of the present invention;

FIG. 11 is an enlarged schematic view of the release shaft component of the present invention;

FIG. 12 is a schematic view of the pawl latch, spring and main housing structure of the present invention.

Detailed Description

The principles and features of the present invention are described below with reference to the drawings, the illustrated embodiments are provided for illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 12, the present embodiment provides a multifunctional pulley device, which comprises a main casing 1, electric drill connection port 2 and a rebound release handle 3 are provided at one end of the main casing 1, a sheave 6 is provided at the other end of the main casing 1, a movable side plate 4 hinged with the main casing 1 is provided at the outer side of the sheave 6, a main gear 101 connected with the sheave 6 is provided in the main casing 1, a pinion 103 is meshed at one side of the main gear 101, the pinion 103 is connected with the electric drill connection port 2, a one-way bearing 201 is provided between the electric drill connection port 2 and the pinion 103, a rope pressing rod 5 is mounted on the movable side plate 4, two friction hooks are provided at one side of the main casing 1, and a friction rod 8 connected with the main casing is provided between the two friction hooks. When the electric drill connection port 2 rotates, power can be input along one direction only, the power input along the other direction is invalid, then the input shaft 104 operates to drive the auxiliary gear 103, the auxiliary gear 103 drives the main gear 101 to rotate, the main gear 101 drives the rope pulley 6 to operate, the rope pulley 6 presses the rope 601 through the rope pressing rod 5 on the movable side plate 4 to provide friction force, and accordingly the rope 601 can rotate along with the rope pulley 6 when the rope pulley 6 operates.

Further, a pawl latch 301 is hinged in the main housing 1, and the pawl latch 301 is pressed against the main housing by a spring 309 and is meshed with the main gear 101. When the main gear 101 rotates in one direction, the pawl latch 301 can be automatically pulled out to rotate freely, and when the main gear 101 rotates in the other direction, the pawl latch 301 is meshed with the main gear 101, so that the main gear 101 can only rotate in one direction.

Further, a rotatable release shaft 303 is installed at an included angle formed by meshing the pawl latch 301 with the main gear 101, the release shaft 303 extends to the outer side of the main casing 1 and is connected with the release handle 3, and a planar end 3031 is disposed at one side of the release shaft 303. When the flat surface is in contact with the pawl latch 301, the pawl latch 301 meshes with the main gear 101. When the release handle 3 is rotated, the release shaft 303 is driven to rotate, and when the arc part 3032 of the release shaft 303 contacts with the pawl latch 301, the pawl latch 301 can be pushed away so as to be separated from the main gear 101, in addition, a spring 309 is arranged between the main shell and the pawl latch, one end of the spring 309 is connected with the main shell, the other end of the spring is connected with a round hole at the top of the pawl latch, and the spring 309 has elasticity so that the pawl latch is actively engaged with the main gear.

Further, a torsion spring is disposed on the release handle 3, the torsion spring includes a first torsion spring 1001 and a second torsion spring 1002, the release handle 3 includes a connection end 1003 and a rebound end 1004, the release shaft 303 is connected with one end of the connection end 1003, and is provided with the first torsion spring 1001, and the other end of the connection end 1003 is hinged with the rebound end 1004, and is provided with the second torsion spring 1002. By utilizing the characteristics of the torsion spring, the release handle 3 can rebound and fold, thereby saving the space and being more attractive.

Further, the movable side plate 4 is hinged to the main casing through a first guide roller 701, a second guide roller 702 is mounted on the main casing 1, a bayonet is arranged on one side of the movable side plate 4, and the bayonet is in a clutchable clamping connection with the second guide roller 702. The bayonet on the movable side plate 4 side is rotated to the second guide roller 702 with the first guide roller 701 as the rotation center, and is engaged with the second guide roller. In addition, pulleys 703 are sleeved outside the first guide roller 701 and the second guide roller 702 and are engaged with the movable side plate 4. The pulley 703 is added to make the rope run smoothly and unimpeded.

Further, a main lock hole 106 is provided at the bottom end of the main housing 1, and an auxiliary lock hole 402 that can be overlapped with the main lock hole 106 is provided at the bottom end of the movable side plate 4. A latch (not shown) latches the primary latch aperture 106 and the secondary latch aperture 402, increasing security.

Further, the rope pressing rod 5 is rotatably hinged on the movable side plate 4, and a protruding point 403 for blocking and limiting the rope pressing rod 5 is arranged on the main shell 1. The raised points limit over-rotation of the rope pressing rod.

Further, the friction hooks comprise a first friction hook 901 and a second friction hook 902, the first friction hook 901 is fixedly arranged at the bottom end of the main shell 1, the second friction hook 902 is fixedly arranged at the top end of the main shell 1, and the opening directions of the first friction hook 901 and the second friction hook 902 are outwards. The two friction hooks can realize more rope winding modes and are more stable.

Further, the friction bar 8 is non-rotatably hinged to one side of the main casing 1. Thereby avoiding friction between the rope and the main casing.

Further, a clamping groove for accommodating the rope 601 is formed in the rope pulley 6, and concave-convex opposite surfaces are formed in the left and right inner side walls of the rope pulley, so that the rope is slightly winding in the clamping groove and can be clamped by the clamping groove. The rope runs with the rope sheave running.

Working principle: firstly, the movable side plate 4 is manually rotated anticlockwise to drive the rope pressing rod 5 to rotate to a limiting point 403, then the rope 601 is installed in the rope pulley 6, the rope 601 is pressed by using the surfaces on two opposite sides, when the rope pulley operates, the rope operates along with the rope pulley, then the movable side plate 4 is rotated clockwise, when the auxiliary lock hole 402 at the bottom of the movable side plate 4 coincides with the main lock hole 106 at the bottom of the main shell 1, the movable side plate 4 and the main shell 1 are locked by using a lock catch, and at the moment, the rope pressing rod 5 presses the rope 601, and resistance is generated. When the rope 601 stretches out of the rope pulley 6, the rope is changed into two sections, one section is connected with a human body or an object, the other end of the rope is abutted against the friction rod 8, and the rope is wound around the first friction hook 901 and the second friction hook 902, so that a locking state is achieved.

The release handle 3 is then rotated counterclockwise. When the release handle 3 rotates counterclockwise, the release shaft 303 is driven to rotate, and the arc 3032 on the back surface of the release shaft 303 rotates to the side end of the pawl latch 301 and abuts against the side end of the pawl latch 301, so that the pawl latch 301 releases the main gear 101.

When the release handle 3 rebounds, the flat end 3031 abuts against the pawl latch 301, thereby engaging the pawl latch 301 with the main gear 101.

Finally, an electric drill (not shown in the figure) is inserted into the electric drill connection port 2, the electric drill (not shown in the figure) is started, power is input, and due to the arrangement of the unidirectional bearing 201, the electric drill can only input power only by forward rotation or reverse rotation, in the embodiment, only reverse rotation is allowed, then the input shaft 104 drives the auxiliary gear 103 in the main shell 1, the auxiliary gear 103 is meshed with the main gear 101, so that the auxiliary gear 103 can apply power to the main gear 101 to rotate while rotating, the other end of the main shaft 102 connected with the main gear 101 is connected with the rope pulley 6, when the rope pulley 6 works, the concave-convex opposite surfaces on two sides press the rope 601, and the resistance applied by the rope pressing rod 5 is applied, so that the rope 601 rotates.

The product can be used for lifting and descending goods and personnel, can also be used as a fixed pulley for single use, can be matched with an additional pulley to form a labor-saving system with proper proportion, and has the working principle that the use mode of the goods and the personnel is lifted or descended, and the use mode of the fixed pulley is provided below, so that the use mode of the labor-saving system is self-researched.

The fixed pulley is used independently: the auxiliary lock hole 402 at the bottom of the movable side plate 4 and the main lock hole 106 at the bottom of the main shell 1 are buckled with hanging points, goods are bound at one end of the rope 601, the other end of the rope 601 is manually pulled to lift the goods, and the goods cannot fall due to the fact that the pawl latch 301 is meshed with the main gear 101, the goods can be stopped by loosening hands.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-functional pulley assembly, includes main casing, its characterized in that: the electric drill rope pressing device is characterized in that an electric drill connection port and a rebound release handle are arranged at one end of the main shell, a rope wheel is arranged at the other end of the main shell, a movable side plate hinged to the main shell is arranged at the outer side of the rope wheel, a main gear connected with the rope wheel is arranged in the main shell, a pinion is meshed with one side of the main gear, the pinion is connected with the electric drill connection port, a one-way bearing is arranged between the electric drill connection port and the pinion, a rope pressing rod is arranged on the movable side plate, two friction hooks are arranged on one side of the main shell, and a friction rod connected with the main shell is arranged between the two friction hooks.

2. A multi-function pulley device according to claim 1, wherein: and a pawl latch is hinged in the main shell and elastically abutted to one side of the main gear.

3. A multi-function pulley device according to claim 2, wherein: the pawl latch is installed rotatable release axle with the contained angle department that main gear meshing formed, the release axle extends to the main casing outside, and is connected with release handle, release axle one side is provided with the plane end.

4. A multi-function pulley device according to claim 3, wherein: the release handle is provided with the torsional spring, the torsional spring includes first torsional spring and second torsional spring, the release handle includes link and resilience end, the release axle is connected with link one end, and is equipped with first torsional spring, the link other end is articulated with the resilience end, and is equipped with the second torsional spring.

5. A multi-function pulley device according to claim 4, wherein: the movable side plate is hinged to the main shell through the first guide wheel column, the second guide wheel column is installed on the main shell, a bayonet is arranged on one side of the movable side plate, and the bayonet can be clamped to the second guide wheel column in a clutchable mode.

6. A multi-function pulley device according to claim 5, wherein: the main shell bottom is provided with main lockhole, movable curb plate bottom is equipped with the vice lockhole that can overlap with main lockhole.

7. A multi-function pulley device according to claim 6, wherein: the rope pressing rod is rotatably arranged on the movable side plate, and the main shell is provided with a protruding point for blocking and limiting the rope pressing rod.

8. A multi-function pulley device according to claim 1, wherein: the friction hook comprises a first friction hook and a second friction hook, wherein the first friction hook is fixedly arranged at the bottom end of the main shell, the second friction hook is fixedly arranged at the top end of the main shell, and the opening directions of the first friction hook and the second friction hook are outwards.

9. A multi-function pulley device according to claim 8, wherein: the friction rod is fixedly connected to one side of the main shell.

10. A multi-function pulley device according to claim 9, wherein: the rope pulley is provided with a clamping groove for accommodating the rope, and the left and right inner side walls of the clamping groove are provided with concave-convex opposite surfaces.