CN215402778U

CN215402778U - Pulley block convenient to connect

Info

Publication number: CN215402778U
Application number: CN202120191278.7U
Authority: CN
Inventors: 吴慧秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-01-04
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to the field of pulley block equipment, and discloses a pulley block convenient to connect, which comprises a lower pulley, wherein the lower pulley comprises a first pulley, two connecting rods and two connecting plates, the lower ends of two opposite surfaces of the two connecting rods are respectively fixedly connected with the front surface and the rear surface of the connecting plate, an upper pulley is arranged above the lower pulley, a connecting rope is arranged between the upper pulley and the lower pulley, the lower surface of the connecting plate is provided with a hook, a threaded groove is in threaded connection with a threaded rod by rotating a rotating block, a lantern ring is blocked so that the lantern ring can not be separated from a short rod any more, the installation and the disassembly of the connecting rope are convenient, the installation and the connection efficiency are improved, the left end of a rope body is fixed well, the middle section of the rope body respectively penetrates through the first pulley and the second pulley to form the pulley block, the hook hooks an object to be hung, the two connecting rods are hinged on the first pulley so that the object can be hung and kept to be hung vertically, the safety accident caused by the falling of the hook in the hanging process of the object is avoided, and the safety is improved.

Description

Pulley block convenient to connect

Technical Field

The utility model relates to the field of pulley block equipment, in particular to a pulley block convenient to connect.

Background

The pulley block is a simple machine assembled by a plurality of movable pulleys and fixed pulleys, and the pulley is a small wheel which is provided with a groove at the periphery and can rotate around a shaft. Simple machines which can rotate around a central shaft and are composed of a disc which can rotate around the central shaft and is provided with grooves and a flexible cable (a rope, an adhesive tape, a steel cable, a chain and the like) crossing the disc are called pulleys, the pulleys are the deformation of a lever and belong to lever type simple machines, and the pulleys are divided into two types: the fixed pulley and the movable pulley are combined into a pulley block, and the direction of the force can be changed by the fixed pulley, but the fixed pulley cannot pull an object in a labor-saving way. The movable pulley can not change the direction of the force, but can pull the animal body with half the force. The pulley block combines the fixed pulley and the movable pulley, so that the direction of the force can be changed, and an object can be pulled in a labor-saving way. If the extra work done by the pulley block is not counted, the more the movable pulley is used, the more the effort is saved, the labor can be saved, the direction of the force can be changed, the more the load can be transported or lifted by the pulley block, only the labor can be saved, but the work can not be saved, the conclusion of the middle school physics textbook has great influence on engineers engaged in the mechanical transmission design work, because the transportation devices such as automobiles, trains, ships and the like and various mechanical devices frequently occur various motions such as starting, accelerating, decelerating, stopping and the like in the using process, and a large amount of energy is consumed in the various motion processes such as starting, accelerating, decelerating, stopping and the like, the theoretical description on how to design or use the transmission system of the transportation devices such as automobiles, trains, ships and the like so as to enable the transmission system to be in the optimal energy saving state is completely required, but the conclusion of the middle school physics textbook enables the mechanical engineers to engage in the mechanical transmission design, when guiding people to use transport vehicles and mechanical devices, the relation between the number of sections of the pulley block or the transmission ratio of the speed reducer and energy conservation in various states is often ignored, so that the energy consumption of many transport vehicles and mechanical transmission devices in the operation process is high, the quantity of transported goods is small, a large amount of screws are needed for fixing common pulley blocks during installation, and a large amount of time is needed for the installation and disassembly processes.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a pulley block convenient to connect.

In order to achieve the purpose, the utility model adopts the following technical scheme that the pulley block convenient to connect comprises a lower pulley, the lower pulley comprises a first pulley, two connecting rods and a connecting plate, the lower ends of the two opposite surfaces of the two connecting rods are respectively fixedly connected with the front surface and the rear surface of the connecting plate, the upper ends of the two opposite surfaces of the two connecting rods are respectively hinged with the middle parts of the front outer surface and the rear outer surface of the first pulley, an upper pulley is arranged above the lower pulley, a connecting rope is arranged between the upper pulley and the lower pulley, and a hook is arranged on the lower surface of the connecting plate.

Preferably, the upper pulley comprises a cross rod, a vertical rod and a short rod, the rear surface of the short rod is fixedly connected with the left end of the front surface of the cross rod, the upper end of the left surface of the vertical rod is fixedly connected with the right surface of the cross rod, and a second pulley is arranged on the front surface of the vertical rod.

Preferably, a threaded rod is arranged at the front end of the short rod, the rear surface of the threaded rod is fixedly connected with the middle part of the front surface of the short rod, a rotating block is arranged on the surface of the threaded rod, and a threaded groove is formed in the middle part of the front surface and the rear surface of the rotating block.

Preferably, the connecting rope comprises a rope body, a pull rod and a lantern ring, the outer ring surface of the lantern ring is fixedly connected with the left end of the rope body, and the upper end of the middle part of the rod surface of the pull rod is fixedly connected with the right end of the rope body.

Preferably, the inner ring surface of the lantern ring is movably sleeved with the rod surface of the short rod, and the middle part of the rear outer surface of the second pulley is hinged with the lower end of the front surface of the vertical rod.

Preferably, the thread groove is in threaded connection with the threaded rod, and the upper end of the hook is fixedly connected with the middle part of the lower surface of the connecting plate.

Advantageous effects

The utility model provides a pulley block convenient to connect. The method has the following beneficial effects:

(1) this assembly pulley convenient to connect, fix the horizontal pole through fixed equipment, operating personnel cup joints the lantern ring on the short-bar face, it makes thread groove and threaded rod threaded connection to rotate the commentaries on classics piece this moment, block the lantern ring and make the lantern ring can't break away from the short-bar again, compare the common assembly pulley of fixing through a large amount of screws, the installation and the dismantlement of rope are convenient for connect in this kind of design, improve erection joint's efficiency, can make the rope body left end fixed good like this, pass pulley one and two forming assembly pulleys of pulley respectively with the rope body middle section.

(2) This assembly pulley convenient to connect, operating personnel can make pulley one upwards rise through the pulling pull rod, plays to hang the effect of getting, and the couple will wait to hang the article of getting and hook, and two connecting rods articulate and make when hanging to get on pulley one the article keep hanging perpendicularly always and get, can not get because of the rising of pulley one and the skew direction, have avoided the article to hang and get the in-process couple that drops and cause the incident, improve the security.

Drawings

FIG. 1 is a schematic view of the general construction of a pulley block for easy attachment according to the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;

FIG. 3 is a schematic view of the upper sheave of FIG. 1 according to the present invention;

fig. 4 is a schematic structural view of the connecting rope in fig. 1 according to the present invention.

Illustration of the drawings:

1. a lower pulley; 2. an upper pulley; 3. connecting ropes; 11. a first pulley; 12. a connecting rod; 13. hooking; 14. a connecting plate; 21. a cross bar; 22. a short bar; 23. a thread groove; 24. rotating the block; 25. a threaded rod; 26. a second pulley; 27. a vertical rod; 31. a rope body; 32. a collar; 33. a pull rod.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): a pulley block convenient to connect is disclosed, as shown in figures 1-4, comprising a lower pulley 1, wherein the lower pulley 1 comprises a pulley I11, two connecting rods 12 and a connecting plate 14, the two connecting rods 12 are provided, the lower ends of the two opposite surfaces of the two connecting rods 12 are respectively fixedly connected with the front surface and the rear surface of the connecting plate 14, the upper ends of the two opposite surfaces of the two connecting rods 12 are respectively hinged with the middle parts of the front outer surface and the rear outer surface of the pulley I11, an upper pulley 2 is arranged above the lower pulley 1, a connecting rope 3 is arranged between the upper pulley 2 and the lower pulley 1, the lower surface of the connecting plate 14 is provided with a hook 13, the upper pulley 2 comprises a cross rod 21, a vertical rod 27 and a short rod 22, the rear surface of the short rod 22 is fixedly connected with the left end of the front surface of the cross rod 21, the upper end of the left surface of the vertical rod 27 is fixedly connected with the right surface of the cross rod 21, the front surface of the vertical rod 27 is provided with a pulley II 26, the front end of the short rod 22 is provided with a threaded rod 25, the rear surface of the threaded rod 25 is fixedly connected with the middle part of the front surface of the short rod 22, the face of the threaded rod 25 is provided with a rotating block 24, the middle parts of the front and rear surfaces of the rotating block 24 are provided with thread grooves 23, the connecting rope 3 comprises a rope body 31, a pull rod 33 and a lantern ring 32, the outer annular surface of the lantern ring 32 is fixedly connected with the left end of the rope body 31, the upper end of the middle part of the face of the pull rod 33 is fixedly connected with the right end of the rope body 31, the inner annular surface of the lantern ring 32 is movably sleeved with the face of the short rod 22, the middle part of the rear outer surface of the pulley II 26 is hinged with the lower end of the front surface of the vertical rod 27, the thread grooves 23 are in threaded connection with the threaded rod 25, the transverse rod 21 is fixed through a fixing device, an operator sleeves the lantern ring 32 on the face of the short rod 22, at the moment, the rotating block 24 is rotated to enable the thread grooves 23 to be in threaded connection with the threaded rod 25, the lantern ring 32 to enable the lantern ring 32 not to be separated from the short rod 22 any more, compared with a common pulley block fixed through a large number of screws, the design facilitates installation and disassembly of the connecting rope 3, installation and connection efficiency is improved, the left end of the rope body 31 can be fixed well, the middle section of the rope body 31 penetrates through the first pulley 11 and the second pulley 26 to form a pulley block, an operator can enable the first pulley 11 to rise upwards by pulling the pull rod 33 to achieve a lifting effect, the hook 13 hooks an object to be lifted, the two connecting rods 12 are hinged to the first pulley 11 to enable the object to be lifted vertically all the time when the object is lifted, safety accidents caused by the fact that the hook falls off in the lifting process are avoided, safety is improved, and the upper end of the hook 13 is fixedly connected with the middle part of the lower surface of the connecting plate 14.

The working principle of the utility model is as follows:

when the lifting device is used, the cross rod 21 is fixed through the fixing equipment, the lantern ring 32 is sleeved on the surface of the short rod 22 by an operator, the rotating block 24 is rotated to enable the thread groove 23 to be in threaded connection with the threaded rod 25, the lantern ring 32 is blocked to enable the lantern ring 32 not to be separated from the short rod 22, compared with a common pulley block which is fixed through a large number of screws, the design is convenient for installation and disassembly of the connecting rope 3, installation and connection efficiency is improved, the left end of the rope body 31 can be fixed well, the middle section of the rope body 31 penetrates through the pulley I11 and the pulley II 26 to form the pulley block, the operator can enable the pulley I11 to be lifted upwards by pulling the pull rod 33 to achieve the lifting effect, the hook 13 hooks an object to be lifted, the two connecting rods 12 are hinged on the pulley I11 to enable the object to be lifted to be vertically lifted all the time, the direction can not be deviated due to the lifting of the pulley I, and safety accidents caused by the fact that the hook falls off in the lifting process of the object can be avoided, the safety is improved.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the utility model is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a assembly pulley convenient to connect, includes lower pulley (1), its characterized in that: lower pulley (1) is including pulley (11), connecting rod (12) and connecting plate (14), connecting rod (12) are two altogether, two the lower extreme on the relative two sides of connecting rod (12) respectively with the front and back two fixed connection of connecting plate (14), two the upper end on the relative two sides of connecting rod (12) is articulated with the front and back surface mid portion of pulley (11) respectively, the top of lower pulley (1) is provided with upper pulley (2), be provided with between upper pulley (2) and lower pulley (1) and be connected rope (3), the lower surface of connecting plate (14) is provided with couple (13).

2. The pulley block convenient for connection according to claim 1, wherein: go up pulley (2) including horizontal pole (21), montant (27) and quarter butt (22), the rear surface of quarter butt (22) and the front surface left end fixed connection of horizontal pole (21), the upper end of the left surface of montant (27) and the right fixed surface connection of horizontal pole (21), the front surface of montant (27) is provided with pulley two (26).

3. The pulley block convenient for connection according to claim 2, wherein: the front end of short rod (22) is provided with threaded rod (25), the middle part fixed connection of the rear surface of threaded rod (25) and the front surface of short rod (22), the face of threaded rod (25) is provided with commentaries on classics piece (24), the middle part of the front and back face of commentaries on classics piece (24) is provided with thread groove (23).

4. A set of pulleys to facilitate connection according to claim 3, wherein: the connecting rope (3) comprises a rope body (31), a pull rod (33) and a lantern ring (32), wherein the outer annular surface of the lantern ring (32) is fixedly connected with the left end of the rope body (31), and the upper end of the middle part of the face of the pull rod (33) is fixedly connected with the right end of the rope body (31).

5. The pulley block convenient for connection according to claim 4, wherein: the inner ring surface of the lantern ring (32) is movably sleeved with the face of the short rod (22), and the middle part of the rear outer surface of the pulley II (26) is hinged with the lower end of the front surface of the vertical rod (27).

6. A set of pulleys to facilitate connection according to claim 3, wherein: the thread groove (23) is in threaded connection with the threaded rod (25), and the upper end of the hook (13) is fixedly connected with the middle part of the lower surface of the connecting plate (14).