CN211009733U

CN211009733U - Hoisting chain of chain block

Info

Publication number: CN211009733U
Application number: CN201922215000.4U
Authority: CN
Inventors: 吴荣庆
Original assignee: Hangzhou Suoluode Machinery Manufacturing Co ltd
Current assignee: Hangzhou Suoluode Machinery Manufacturing Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-07-14
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a chain block's lifting chain, including the chain, the both ends of chain all are provided with the U-shaped piece, and the rectangular channel has been seted up to the one end of U-shaped piece, and the through-hole has been seted up to the other end of U-shaped piece, and the bottom of U-shaped piece one side is provided with the nut, and the square groove has been seted up to one side of rectangular channel inside, and the inside of rectangular channel and through-hole is provided with same bolt, and the inside of bolt is provided with coupling mechanism, and coupling mechanism comprises square bar, circular slot and. This kind of chain block's load chain uses through the cooperation of bolt and nut, make the lifting hook insert the inside back of U-shaped spare, can pass through the rotation bolt, make the lifting hook fix the inside at the U-shaped spare, and use through the cooperation of spring, square bar, square and square groove, make square bar and square can remove under the effect of the elasticity of spring, and then make the inside that the square can the retraction square groove, make square, square bar and bolt can not rotate, thereby make the difficult pine of appearing of bolt take off the phenomenon, the practicality has been promoted.

Description

Hoisting chain of chain block

Technical Field

The utility model relates to a lifting chain specifically is a chain block's lifting chain.

Background

The hoisting chain is an essential and important fetching device of the crane, the length of the chain can be adjusted according to different hoisting heights of a hoisting object, the operation range of the crane is enlarged by improving the operation efficiency of the crane, and in the like products, the chain product series is divided according to the basic structure of the chain, namely, according to the shapes of elements, parts and positions meshed with the chain, the size proportion among the parts and the like.

At present, the chain block of the majority can be provided with a hoisting chain, in order to enable the hoisting chain to be connected with a lifting hook, the two ends of the hoisting chain can be generally connected with the lifting hook by bolts and nuts, but the bolts are easy to loosen due to vibration and cause potential safety hazards when used for a long time, so that the chain block hoisting chain is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a chain block's lifting chain, which comprises a chain, the both ends of chain all are provided with the U-shaped piece, the rectangular channel has been seted up to the one end of U-shaped piece, the through-hole has been seted up to the other end of U-shaped piece, the bottom of U-shaped piece one side is provided with the nut, the square groove has been seted up to one side of rectangular channel inside, the inside of rectangular channel and through-hole is provided with same bolt, the inside of bolt is provided with coupling mechanism, coupling mechanism comprises square bar, circular slot and spring, the square bar sets up the inside at the bolt, the one end at the square bar is seted up to the circular slot, the inside in square groove is provided with stop gear, stop gear comprises square and butterfly block, the middle part of square one side and the one end fixed connection of square.

As a preferred technical scheme of the utility model, the bottom fixed connection of one side of nut and U-shaped spare one side, the middle part of nut and the inside intercommunication of through-hole.

As a preferred technical scheme of the utility model, the outside of bolt alternates with the inside of rectangular channel and through-hole and is connected, the tip of bolt and the inside threaded connection of nut.

As a preferred technical scheme of the utility model, the inside shape of bolt is square, and the outer wall laminating of the inner wall of bolt and square bar.

As a preferred technical scheme of the utility model, the one end of spring and the inside one end fixed connection of circular slot, the other end and the inside one end fixed connection of bolt of spring.

As a preferred technical scheme of the utility model, the outside of square is alternated with the inside in square groove and is connected, one side fixed connection of the one end of keeping away from the square pole and the butterfly piece of square.

As an optimal technical scheme of the utility model, the butterfly-shaped piece comprises two down tubes and connecting block, one side of connecting block and one side fixed connection of square, two the one end of down tube and the top and the bottom fixed connection of connecting block one side.

The utility model has the advantages that: this kind of chain block's lifting chain, cooperation through bolt and nut is used, make the lifting hook insert the inside back of U-shaped piece, people can pass through the rotation bolt, make the bolt rotatory to the inside of nut, make the bolt can fix the lifting hook in the inside of U-shaped piece, and can pass through the spring, the square bar, the cooperation of square and square groove is used, when making people loosen the butterfly block, square bar and square can remove under the effect of the elasticity of spring, and then make the square can retract the inside of square groove, make the square, square bar and bolt can not rotate, thereby make the difficult pine take off phenomenon that appears of bolt, the practicality has been promoted.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a chain block of the present invention;

FIG. 2 is an enlarged schematic view of a chain of the chain block of the present invention at A in FIG. 1;

FIG. 3 is a schematic view of the U-shaped member of FIG. 2 of the chain hoist of the present invention;

FIG. 4 is a schematic side view of the U-shaped member of FIG. 2 of the hoist chain of the present invention;

fig. 5 is a schematic cross-sectional view of the U-shaped part of fig. 4 of the hoist chain of the present invention.

In the figure: 1. a chain; 2. a U-shaped piece; 3. a rectangular groove; 4. a through hole; 5. a nut; 6. a square groove; 7. a bolt; 8. a square bar; 9. a square block; 10. a butterfly block; 11. a circular groove; 12. a spring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the utility model relates to a chain block's lifting chain, including chain 1, the both ends of chain 1 all are provided with U-shaped piece 2, rectangular channel 3 has been seted up to the one end of U-shaped piece 2, through-hole 4 has been seted up to the other end of U-shaped piece 2, the bottom of U-shaped piece 2 one side is provided with nut 5, square groove 6 has been seted up to 3 inside one sides of rectangular channel, the inside of rectangular channel 3 and through-hole 4 is provided with same bolt 7, the inside of bolt 7 is provided with coupling mechanism, coupling mechanism is by square bar 8, circular groove 11 and spring 12 are constituteed, square bar 8 sets up the inside at bolt 7, circular groove 11 sets up the one end at square bar 8, the inside of square groove 6 is provided with stop gear, stop gear comprises square 9 and butterfly block 10, the middle part of square 9 one.

Wherein, one side of nut 5 and the bottom fixed connection of U-shaped member 2 one side, the middle part of nut 5 and the inside intercommunication of through-hole 4, through nut 5, can rotate to the inside of nut 5 after making bolt 7 pass rectangular channel 3 and through-hole 4's inside, and then make bolt 7 fix on U-shaped member 2.

Wherein, the outside of bolt 7 is threaded with the inside of rectangular channel 3 and through-hole 4 and is connected, and the tip of bolt 7 is connected with the internal thread of nut 5, through bolt 7, makes behind bolt 7 the inside of passing nut 5, can fix the lifting hook in the inside of U-shaped member 2.

Wherein, the inside shape of bolt 7 is square, and the inner wall of bolt 7 and the outer wall laminating of square bar 8, when having guaranteed that square bar 8 rotates, bolt 7 can rotate thereupon.

Wherein, spring 12's one end and the inside one end fixed connection of circular slot 11, spring 12's the other end and the inside one end fixed connection of bolt 7, through spring 12's elasticity, make the inside that square 9 can the retraction square groove 6, and then make square 9, square bar 8 and bolt 7 can not rotate to make bolt 7 be difficult for appearing the pine phenomenon of taking off, promoted the practicality.

Wherein, the outside of square 9 and the inside interlude of square groove 6 are connected, and square 9's one end of keeping away from square pole 8 and one side fixed connection of butterfly piece 10 have guaranteed that square 9 can not rotate after inserting the inside of square groove 6, and then make square pole 8 and bolt 7 can not rotate, prevent that bolt 7 from becoming flexible.

Wherein, butterfly shape piece 10 comprises two down tube and connecting block, one side of connecting block and one side fixed connection of square 9, the one end of two down tube and the top and the bottom fixed connection of connecting block one side, through two down tube and connecting block, made things convenient for people to rotate square 9, square pole 8 and bolt 7, promoted the practicality.

When the lifting hook works, firstly, one end of an external lifting hook is inserted into the U-shaped part 2, the butterfly block 10 is held, the end part of the bolt 7 firstly passes through the rectangular groove 3, then passes through the through hole 4 and finally rotates into the nut 5, after the end part of the bolt 7 enters into the nut 5, the butterfly block 10 is pulled outwards to enable the square block 9 and the square rod 8 to move outwards, the butterfly block 10 is rotated continuously, the butterfly block 10 drives the square rod 8 to rotate, the square rod 8 drives the bolt 7 to rotate, the bolt 7 continues to enter into the nut 5, after the end part of the bolt 7 passes through the nut 5, the butterfly block 10 is loosened, the butterfly block 10, the square block 9 and the square rod 8 move under the action of the elastic force of the spring 12, the square rod 8 completely enters into the bolt 7, the square block 9 enters into the square groove 6, the square block 9, the square rod 8 and the bolt 7 cannot rotate, and the lifting hook is fixed in the U-shaped part 2, use through the cooperation of bolt 7 and nut 5, make the lifting hook insert U-shaped member 2's inside back, can be through rotating bolt 7, make the lifting hook fix the inside at U-shaped member 2, and use through spring 12, square bar 8, the cooperation of square 9 and square groove 6, make square bar 8 and square 9 can remove under the effect of spring 12's elasticity, and then make the inside that square 9 can the retraction square groove 6, make square 9, square bar 8 and bolt 7 can not rotate, thereby make difficult the pine take off phenomenon that appears of bolt 7, and the practicality is promoted.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The hoist chain of the chain block comprises a chain (1) and is characterized in that U-shaped pieces (2) are arranged at two ends of the chain (1), a rectangular groove (3) is formed in one end of each U-shaped piece (2), a through hole (4) is formed in the other end of each U-shaped piece (2), a nut (5) is arranged at the bottom end of one side of each U-shaped piece (2), a square groove (6) is formed in one side of the inside of each rectangular groove (3), the same bolt (7) is arranged inside each rectangular groove (3) and the corresponding through hole (4), a connecting mechanism is arranged inside each bolt (7), the connecting mechanism consists of a square rod (8), a circular groove (11) and a spring (12), each square rod (8) is arranged inside each bolt (7), each circular groove (11) is formed in one end of each square rod (8), and a limiting mechanism is arranged inside each square groove (6), the limiting mechanism is composed of a square block (9) and a butterfly block (10), and the middle of one side of the square block (9) is fixedly connected with one end of the square rod (8).

2. Chain hoist according to claim 1, characterized in that one side of the nut (5) is fixedly connected to the bottom end of one side of the U-shaped element (2), and the middle of the nut (5) is connected to the inside of the through hole (4).

3. Chain hoist according to claim 1, characterized in that the bolt (7) is externally threaded with the rectangular groove (3) and the through hole (4), and the end of the bolt (7) is threaded with the nut (5).

4. Chain hoist according to claim 1, characterized in that the bolt (7) is square in shape and the inner wall of the bolt (7) fits the outer wall of the square bar (8).

5. Chain hoist according to claim 1, characterized in that one end of the spring (12) is fixedly connected to one end inside the circular groove (11) and the other end of the spring (12) is fixedly connected to one end inside the bolt (7).

6. Chain hoist according to claim 1, characterized in that the blocks (9) are externally threaded into the grooves (6) and the ends of the blocks (9) remote from the rods (8) are fixedly connected to the butterfly blocks (10).

7. Chain hoist according to claim 1, characterized in that the butterfly block (10) consists of two diagonal rods and a connecting block, one side of which is fixedly connected to one side of the block (9) and one end of which is fixedly connected to the top and bottom of one side of the connecting block.