CN213011732U

CN213011732U - 360 rotatory chain block of degree

Info

Publication number: CN213011732U
Application number: CN202021120543.4U
Authority: CN
Inventors: 曾剑
Original assignee: Chongqing Toho Rongkee Electronic And Machinery Co ltd
Current assignee: Chongqing Toho Rongkee Electronic And Machinery Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-04-20
Anticipated expiration: 2030-06-17

Abstract

The utility model provides a 360 rotatory chain block of degree, includes fuselage, ball and the hand chain cover of seting up recess I, sets up recess II that corresponds with recess I on the fuselage, recess I and II formation of recess and ball assorted cavities, and the ball sets up in the cavity. In the utility model, the hand chain cover is rotationally arranged on the machine body in a way that the balls are placed in the cavity, so that the hand chain can be pulled in 360 degrees in a turning way; the ball is used for reducing the static friction coefficient between the machine body and the ball, and the service life of the hoist is prolonged.

Description

360 rotatory chain block of degree

Technical Field

The utility model relates to a hoist block field, concretely relates to 360 rotatory chain block of degree.

Background

The calabash is a small-sized hoisting mechanical device, is widely applied to various industries and occasions due to simple use and convenient carrying, is mainly suitable for places such as factories, mines, construction sites, docks, warehouses and the like, and is used for installing machines, hoisting goods and the like.

The existing chain block can only be pulled downwards vertically or pulled at a certain angle, has a small application range, often brings inconvenience to workers, and even causes life safety accidents due to the limitation of the use position in the use process.

The utility model discloses a utility model, its name is a 360 degrees rotatory chain block in CN200720191446.2, including hand zip fastener housing, hand zip fastener housing rotate with chain pull cover shell and link to each other, chain pull cover shell is fixed in on the fuselage.

Although the 360-degree rotating chain block can rotate 360 degrees to pull the chain block, the 360-degree rotating chain block is connected in a manner that the chain block cover shell is curled outwards, and the curled outwards corresponds to the groove of the chain block cover shell, so that the rotating connection mode has the following defects: the static friction coefficient of the connecting part is large, the connecting part is easy to wear, and the service life of the hoist is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 360 rotatory chain block of degree, it can not only 360 degrees turn to the pulling hand chain, still has the coefficient of static friction who reduces between fuselage and the ball, extension calabash life's advantage.

The utility model aims at realizing like this, a 360 rotatory chain block of degree, including fuselage and the hand chain cover of seting up recess I, set up on the fuselage with I corresponding recess II of recess, recess I and II formation cavitys of recess are provided with in the cavity with cavity assorted ball.

In the utility model, the hand chain cover is rotationally arranged on the machine body in a way that the balls are placed in the cavity, so that the hand chain can be pulled in 360 degrees in a turning way; the ball is used for reducing the static friction coefficient between the machine body and the ball, and the service life of the hoist is prolonged.

Due to the adoption of the technical scheme, the chain pulling device not only can pull the chain pulling chain in a 360-degree steering manner, but also has the advantages of enhancing the structural strength and the reliability, reducing the static friction coefficient between the machine body and the ball and prolonging the service life of the hoist.

Drawings

The drawings of the utility model are as follows:

fig. 1 is a schematic partial cross-sectional view of a 360-degree rotating chain block according to the present invention.

Fig. 2 is an explosion diagram of the 360-degree rotating chain block of the present invention.

Fig. 3 is another exploded view of the 360 degree rotating chain block of the present invention.

In the figure: 1. a body; 2. a ball bearing; 3. a bracelet cover; 4. a groove I; 5. a groove II; 6. a threaded hole; 7. a plug; 8. a buffer block; 9. a chain hole; 10. pulling a chain by hand; 11. a chain hole.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in figures 1 to 3, a 360-degree rotary chain block comprises a body 1 and a bracelet cover 3 provided with a groove I4, wherein the body 1 is provided with a groove II 5 corresponding to the groove I4, the groove I4 and the groove II 5 form a cavity, and a ball 2 matched with the cavity is arranged in the cavity.

In the utility model, the hand chain cover 3 is rotationally arranged on the machine body 1 by the way that the balls 2 are arranged in the cavity, so that the hand chain can be pulled in 360 degrees; the ball 2 is used for reducing the static friction coefficient between the machine body 1 and the ball 2, and the service life of the hoist is prolonged.

In the embodiment, the ball 2 matched with the cavity is arranged in the cavity, which means that the inner diameter of the cavity is the same as the diameter of the ball 2; the ball 2 arranged in the cavity and matched with the cavity can be one ball or a plurality of balls.

Further, as a preferred scheme, the bracelet cover 3 is provided with an annular boss I, a groove I4 is formed in the annular boss I, an annular boss II is formed in the machine body 1, and a groove II 5 is formed in the annular boss II; the inner diameter of the annular boss I is matched with the outer diameter of the annular boss II, or the outer diameter of the annular boss I is matched with the inner diameter of the annular boss II. The effect that sets up annular boss I and annular boss II is the structural strength who avoids influencing the calabash and avoids interfering other spare parts on fuselage 1 or the hand lace cover 3. In this embodiment, the bracelet cover 3 is integrally provided with the annular boss I, and the body 1 is integrally provided with the annular boss II.

Further, the length of the annular boss I and the annular boss II is 6.0mm-6.3 mm. The length of annular boss I and annular boss II is 6.0mm-6.3 mm's effect is, when avoiding influencing the structural strength of calabash and avoiding interfering other spare parts on fuselage 1 or the hand chain cover 3, is convenient for install ball 2, and in this embodiment, the length of annular boss I and annular boss II is 6.2 mm.

In the present embodiment, the grooves i 4 and ii 5 are the same size. The grooves I4 and II 5 are the same in size and further use the balls 2 to fix the machine body 1 and the bracelet cover 3. In other embodiments, the size of the grooves I4 and II 5 can be different.

Further, as a preferred scheme, a threaded hole 6 matched with the ball 2 is formed in the bracelet cover 3 or/and the machine body 1 corresponding to the cavity, and a plug 7 is arranged in the threaded hole 6. In this embodiment, a threaded hole 6 matched with the ball 2 is formed in the machine body 1 corresponding to the cavity, a plug 7 is arranged in the threaded hole 6, and the plug 7 is in threaded connection with the threaded hole 6. When taking out end cap 7, ball 2 is in putting into the cavity from screw hole 6, and screw hole 6's effect is being practiced thrift the cost, is convenient for put into the cavity with ball 2 under the condition that does not influence recess I4 and II 5 structures of recess as far as possible, and the effect of end cap is to avoid ball 2 to fall out of screw hole 6.

Further, as shown in fig. 3, two chain holes 11 corresponding to the hand-pulling chain 10 are preferably formed in the hand chain cover 3. The chain cover 3 of prior art on only seted up a chain hole 9 corresponding with hand chain 10 usually, hand chain 10 sets up in chain hole 9, but because hand chain 10 encircles in the hand chain sprocket of calabash, consequently the hand chain 10 that hangs down from the chain cover 3 is equivalent to two chains, two chains drive the chain cover 3 when rotatory on fuselage 1 simultaneously, two chains do not divide and can influence rotatory effect, lead to two chains to twine each other even. Therefore, two chain holes 11 corresponding to the hand-pulling chain 10 are formed in the hand chain cover 3, and the two chain holes 11 correspond to two chains hanging down from the hand chain cover 3 after being surrounded. The two chain holes 11 corresponding to the hand chain 10 are formed in the hand chain cover 3, so that the hand chain cover has the advantages of being simple in structure and low in manufacturing cost, and avoiding the hand chain 10 from being wound while avoiding influencing the rotating effect of the hand chain 10 and the hand chain cover 3.

Further, as shown in fig. 1 and 2, in the present embodiment, a buffer block 8 is fixed in a chain hole 9 of the bracelet cover 3, and a chain hole 11 corresponding to the hand-pulled chain 10 is opened on the buffer block 8. In the process that the hand zipper strip rotates around the central shaft 360 of the chain block, the hand chain can be in direct contact with the hand chain cover 3, and therefore, the hand chain or/and the hand chain cover 3 can be worn. The buffer block 8 has the function of not affecting the assembly of the hand chain 10, but also avoiding the hand chain 10 or/and the hand chain cover 3 from being worn. In this embodiment, the buffer block 8 is fixed in the chain hole 9 of the bracelet cover 3 through a fastener, and after the buffer block 8 is worn, the buffer block 8 can be replaced and repaired quickly. In the present embodiment, the buffer block 8 is a non-metallic material.

Further, the body 1 and the bracelet strand cover 3 are preferably aluminum die-cast parts. The structure that the machine body 1 and the bracelet cover 3 of the aluminum die-cast part are matched with the ball 2 and arranged in the cavity has the advantages of high structural strength and strong reliability.

Further, preferably, the diameter of the ball 2 is 3mm to 4 mm. The ball 2 has a diameter of 3mm to 4mm, and has advantages of low installation cost and low input cost. In the utility model, the calabash is 0.25T, and the diameter of ball 2 is 3 mm. In another embodiment the gourd is a 0.5T gourd and the diameter of the ball 2 is 4 mm. In other embodiments, the diameter of the ball 2 is other diameters from 3mm to 4 mm. The diameter of the ball 2 may be other than 3mm to 4mm, but in a general hoist, it is costly to provide the ball 2 with a diameter other than 3mm to 4 mm.

Claims

1. The utility model provides a 360 degree rotatory chain block which characterized in that: including fuselage (1) and hand chain cover (3) of seting up recess I (4), set up on fuselage (1) with II (5) of the corresponding recess of I (4), recess I (4) and II (5) formation cavitys, be provided with in the cavity with cavity assorted ball (2).

2. The 360 degree rotating chain block of claim 1, wherein: the bracelet cover (3) is provided with an annular boss I, a groove I (4) is formed in the annular boss I, an annular boss II is formed in the machine body (1), and a groove II (5) is formed in the annular boss II; the inner diameter of the annular boss I is matched with the outer diameter of the annular boss II, or the outer diameter of the annular boss I is matched with the inner diameter of the annular boss II.

3. The 360 degree rotating chain block of claim 1 or 2, wherein: and a threaded hole (6) matched with the ball (2) is formed in the hand chain cover (3) or/and the machine body (1) corresponding to the cavity, and a plug (7) is arranged in the threaded hole (6).

4. The 360 degree rotating chain block of claim 1 or 2, wherein: two chain holes (11) corresponding to the hand-pulling chain (10) are arranged on the hand chain cover (3).

5. The 360 degree rotating chain block of claim 3, wherein: two chain holes (11) corresponding to the hand-pulling chain (10) are arranged on the hand chain cover (3).

6. The 360 degree rotating chain block of claim 1 or 2, wherein: chain holes (9) are formed in the hand chain cover (3), a buffer block (8) is fixed in each chain hole (9), and two chain holes (11) corresponding to the hand-pulling chains (10) are formed in each buffer block (8).

7. The 360 degree rotating chain block of claim 3, wherein: chain holes (9) are formed in the hand chain cover (3), a buffer block (8) is fixed in each chain hole (9), and two chain holes (11) corresponding to the hand-pulling chains (10) are formed in each buffer block (8).

8. A 360 degree rotating chain block as claimed in claim 1, 2, 5 or 7 wherein: the body (1) and the chain cover (3) are aluminum die-cast parts.

9. The 360 degree rotating chain block of claim 3, wherein: the body (1) and the chain cover (3) are aluminum die-cast parts.

10. A 360 degree rotating chain block as claimed in claim 1, 2, 5, 7 or 9 wherein: the diameter of the ball (2) is 3mm-4 mm.