CN109502500B

CN109502500B - Hand-pulling chain pulling aid

Info

Publication number: CN109502500B
Application number: CN201811625644.4A
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: 2018-12-28
Filing date: 2018-12-28
Publication date: 2024-06-04
Anticipated expiration: 2038-12-28
Also published as: CN109502500A

Abstract

A hand-pulling chain pulling aid comprises a body and a clamping piece, wherein a chain hole and a limiting hole communicated with the chain hole are formed in the body, and the clamping piece is movably arranged in the limiting hole. The invention has the following advantages: the hand pulling condition of the pulling chain can be effectively improved, the pulling chain is easy and convenient, the hand pulling block can be operated more rapidly to lift the heavy object, the working efficiency is improved, the palm can be prevented from being cut when the chain is pulled, and the hand pulling chain is safe and reliable.

Description

Hand-pulling chain pulling aid

Technical Field

The invention relates to small lifting equipment, in particular to a hand zipper pull aid.

Background

The hand hoist is used as a small hoisting mechanical device, is simple to use and convenient to carry, has been widely applied to various industries and occasions, and is mainly suitable for places such as factories, mines, construction sites, wharfs, docks, warehouses and the like, and is used for installing machines and hoisting cargoes.

In the prior art, the chain block is manually pulled to enable the block to work to lift heavy objects, and the hand pulling force of the pulling block is generally 20-50Kg, so that the pulling process is time-consuming and labor-consuming. Especially when the chain block pulls the goods with larger tonnage, the used hand pulling force is larger, generally more than 50Kg, and the chain is smaller, and the general specification is 4.8 x 22.4 or 5 x 25, so that the pure manual pulling of the chain is very laborious and the palm is easily hurt, in order to avoid the situation, a general user firstly thinks of pulling by wearing the glove, but the grasping force is not good when pulling by wearing the glove, therefore, in the situation, the pulling mode has to be changed into double pulling or the small steel rods are inserted into the chain links to pull the two ends of the small steel rods to improve the hand pulling condition.

Disclosure of Invention

The invention aims to provide a hand zipper pull aid which can not only effectively improve the hand pulling condition of a pulling chain and enable the pulling chain to be easy and convenient, but also can operate a hand hoist more quickly to lift a heavy object, improve the working efficiency, and can also avoid cutting hands when the chain is pulled, thus being safe and reliable.

The invention aims at realizing the technical scheme that the hand-pulling chain pulling aid comprises a body and a clamping piece, wherein the body is provided with a chain hole and a limiting hole communicated with the chain hole, and the clamping piece is movably arranged in the limiting hole.

The application principle of the scheme is as follows: when the chain is used, the chain is placed in the chain hole, the clamping piece moves up and down in the limiting hole, and the clamping piece in the limiting hole is pressed down to enable the clamping piece to be inserted into a chain ring of the chain, so that the hand zipper pull aid is fixed on the chain, and the mutual displacement of the chain and the hand zipper pull aid is avoided; when the hand zipper booster needs to be transposed on the chain, the clamping firmware is loosened to enable the clamping firmware to move out of the chain ring, and the chain can be randomly displaced in the chain hole at the moment, so that the transposition of the hand zipper booster on the chain is realized.

Due to the adoption of the technical scheme, the invention has the following advantages: the hand pulling condition of the pulling chain can be effectively improved, the pulling chain is easy and convenient, the hand pulling block can be operated more rapidly to lift the heavy object, the working efficiency is improved, the palm can be prevented from being cut when the chain is pulled, and the hand pulling chain is safe and reliable.

Drawings

The drawings of the present invention are described as follows:

FIG. 1 is a schematic perspective view of a hand zipper booster of the present invention;

FIG. 2 is a schematic front view of the hand zipper booster of the present invention;

FIG. 3 is a schematic perspective view of the hand zipper booster body I and body II of the present invention when opened;

FIG. 4 is a schematic cross-sectional view of the hand zipper booster of the present invention;

FIG. 5 is a left side schematic view of the hand zipper pull aid of the present invention;

Fig. 6 is a right side schematic view of the hand zipper puller of the present invention.

In the figure: 1. a body; 101. a device body I; 102. a body II; 2. a chain hole; 3. a limiting hole; 301. a boss; 4. a clamping piece; 401. a pin shaft; 402. a through groove; 5. a limiting shaft; 6. a return spring; 7. an opening/closing section; 8. a rotary switch; 9. a rotary groove; 901. a rotary tank I; 902. a rotary tank II; 11. a blind hole; 12. finger grooves; 13. reinforcing ribs.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 to 6, a hand-pulling chain booster comprises a body 1 and a clamping piece 4, wherein the body 1 is provided with a chain hole 2 and a limiting hole 3 communicated with the chain hole 2, and the clamping piece 4 is movably arranged in the limiting hole 3.

The application principle of the scheme is as follows: when the chain is used, the chain is placed in the chain hole 2, the clamping piece 4 moves up and down in the limiting hole 3, and the clamping piece 4 in the limiting hole 3 is pressed down to enable the clamping piece 4 to be inserted into a chain ring of the chain, so that the hand zipper pull aid is fixed on the chain, and the mutual displacement of the chain and the hand zipper pull aid is avoided; when the hand zipper booster needs to be transposed on the chain, the clamping piece 4 is loosened to enable the clamping piece 4 to move out of the chain ring, and the chain can be randomly displaced in the chain hole 2 at the moment, so that the transposition of the hand zipper booster on the chain is realized.

In this embodiment, the body 1 is manufactured by engineering plastic according to an ergonomic design, and has the characteristics of aesthetic feeling and increased holding comfort for a user.

Further, in the present embodiment, the chain hole 2 and the limiting hole 3 are perpendicular to each other. The mutually perpendicular effect of chain hole 2 and spacing hole 3 is in the fastener 4 that is convenient for in the spacing hole 3 inserts in the chain link of chain, and better with hand zip fastener aid ware card solid on the chain. In other embodiments, the chain hole 2 and the limiting hole 3 may not be perpendicular to each other.

Further, a through groove 402 is provided in the fastener 4, and a limiting shaft 5 passing through the through groove 402 is fixed on the body 1. The limiting shaft 5 is arranged in the through groove 402 and plays a role in limiting the moving distance of the clamping piece 4, so that the clamping piece 4 is prevented from falling out of the limiting hole 3.

Further, a boss 301 is arranged in the limit hole 3, and a return spring 6 is arranged on the boss 301. The reset spring 6 is arranged between the boss 301 and the clamping piece 4, the clamping piece 4 presses the reset spring 6, and the reset spring 6 is used for resetting the clamping piece 4 when the clamping piece 4 is released after being pressed down. In this embodiment, the number of the return springs 6 is two, which are respectively arranged at two symmetrical sides of the fixed shaft, and in another embodiment, the number of the return springs 6 is one, which are sleeved on the fixed shaft. Because set up to a reset spring 6, its elasticity is great and reset spring 6 drops or block in fixed shaft hole easily from fixed shaft hole, set up two reset springs 6 for setting up a reset spring 6, the function of hand chain booster is more stable to the power that presses the button needs is less. In other embodiments, the number of return springs 6 may be other.

Further, in the present embodiment, the fastening member 4 is a button with a pin 401 at the lower end, and in other embodiments, the fastening member 4 may be another object that can be inserted into a chain ring and fix the chain.

Further, in the present embodiment, the cross section of the chain hole 2 is in the shape of four petals. Since the chain is usually composed of links fastened to each other, the cross-sectional shape of the chain is a four-lobed shape, and the cross-sectional shape of the chain hole 2 is set to be a four-lobed shape, the rolling of the chain due to the rotation of the chain in the chain hole 2 can be avoided, so that the fastener 4 can be inserted into the links more easily.

Further, in the present embodiment, the body 1 is composed of a body i 101 and a body ii 102 that divide the chain hole 2 into two, and the body i 101 and the body ii 102 are hinged to form the opening and closing portion 7. The device body I101 and the device body II 102 are hinged to form the opening and closing part 7, so that the device body I101 and the device body II 102 can be separated and closed conveniently, and a chain can be put into and taken out of the chain hole 2.

Further, a rotary switch 8 is provided on the body i 101 or the body ii 102, and the opening/closing portion 7 is engaged by the rotary switch 8. The rotary switch 8 is used for avoiding the situation that the opening and closing parts 7 of the device body I101 and the device body II 102 are suddenly opened in the using process.

Further, in the present embodiment, the body 1 is provided with the rotary groove 9, the rotary groove 9 includes the rotary groove i 901 provided on the body i 101 and the rotary groove ii 902 provided on the body ii 102 corresponding to the rotary groove i 901, and the rotary switch 8 is rotatably provided in the rotary groove i 901 or the rotary groove ii 902. The device body I101 and the device body II 102 are buckled together through the rotary groove 9 and the rotary switch 8 at the opening and closing part 7, and when the rotary switch 8 rotates to be simultaneously positioned in the rotary groove I901 and the rotary groove II 902, the device body I101 and the device body II 102 can be prevented from being opened suddenly during the use process.

In this embodiment, the body i 101 includes three-quarter of the chain hole 2, the body ii 102 includes one-quarter of the chain hole 2, and the fastener 4 and the limiting hole 3 are disposed on the body i 101. The rotary groove I901 is a sector groove with 180 degrees, the rotary switch 8 is rotatably arranged in the rotary groove I901 through bolts or other rotary components, the rotary switch 8 is matched with the rotary groove I901, and the rotary groove II 902 is an arc groove with the rotary switch 8 rotating by taking the rotary component as an axis, so that the rotary switch 8 rotates by a certain angle. In another embodiment, the rotary slot ii 902 is a 180 ° fan-shaped groove, the rotary switch 8 is rotatably disposed in the rotary slot ii 902 by a bolt or other rotary component, the rotary switch 8 is matched with the rotary slot ii 902, and the rotary slot i 901 is an arc-shaped groove in which the rotary switch 810 rotates around the rotary component as an axis, so that the rotary switch 8 rotates by a certain angle. In another embodiment, the opening and closing part 7 is fastened with a pin hole through a pin shaft fixed on the device body I101 and the device body II 102, the pin shaft is arranged on the device body I101 or the device body II 102 at a position corresponding to the pin hole, and the pin hole is arranged on the device body I101 or the device body II 102 at a position corresponding to the pin shaft. In other embodiments, the opening and closing part 7 may be fastened in other ways.

Further, the body 1 is also provided with a blind hole 11. The blind hole 11 has the function of reducing the weight of the hand zipper booster on the premise of meeting the strength thereof. In the present embodiment, the blind hole 11 is provided in the body i 101.

Further, the surface of the body 1 is provided with finger grooves 12. The placement of the user's fingers within the finger well 12 increases the comfort of the user's use of the hand zipper assist. When the hand zipper puller of the embodiment is used, since the clamping piece 4 needs to be pressed to pull the chain, the index finger and the thumb of a person are more powerful than other fingers, the habit of a user is that the clamping piece 4 is pressed by the index finger, the thumb is held on the body 1, and the middle finger, the ring finger and the little finger are respectively placed in the finger grooves 12, so that in the embodiment, 3 finger grooves 12 are arranged on the surface of the body 1. In another embodiment, the clamping piece 4 and the spring can be replaced by a self-locking switch with a pin shaft, the pin shaft can be fixed in the chain ring without pressing the self-locking switch all the time after the self-locking switch is pressed, and the number of finger grooves 12 on the surface of the body 1 can be set to be 4. In other embodiments, the number of finger grooves 12 on the surface of the body 1 may be set to be other.

Further, the surface of the body 1 is also provided with reinforcing ribs 13. The reinforcing ribs 13 mainly play roles in attractive appearance, strength improvement and skid resistance in use of the hand zipper puller. In the present embodiment, the reinforcing ribs 13 are in a grid shape, and in other embodiments, the reinforcing ribs 13 may be in other shapes. The reinforcing ribs 13 may be integrally arranged with the body 1, and the reinforcing ribs 13 may be bonded or welded on the surface of the body 1.

Claims

1. A hand-pull chain pull aid, characterized in that: including body (1) and fastener (4), be equipped with chain hole (2) on body (1) and with chain hole (2) communicating spacing hole (3), fastener (4) movably set up in spacing hole (3), be provided with logical groove (402) in fastener (4), be fixed with spacing axle (5) that pass logical groove (402) on body (1), body (1) surface is provided with finger groove (12), body (1) comprises ware body I (101) and ware body II (102) of dividing chain hole (2) into two, ware body I (101) and ware body II (102) hinge formation division of opening and shutting portion (7), ware body I (101) are including three-quarter chain hole (2), ware body II (102) are including quarter chain hole (2), fastener (4) and spacing hole (3) all set up on ware body I (101), be provided with rotary switch (8) on ware body I (101) or ware body II (102), opening and shutting portion (7) pass through rotary switch (8).

2. The hand zipper booster of claim 1, wherein: the chain hole (2) and the limit hole (3) are mutually perpendicular.

3. The hand-pull chain booster according to claim 1 or 2, characterized in that: a boss (301) is arranged in the limiting hole (3), and a reset spring (6) is arranged on the boss (301).

4. The hand-pull chain booster according to claim 1 or 2, characterized in that: the cross section of the chain hole (2) is in a four-petal shape.

5. A hand-pull chain pull-aid as claimed in claim 3, wherein: the cross section of the chain hole (2) is in a four-petal shape.

6. The hand-pull chain booster of claim 1, 2 or 5, wherein: the body (1) is also provided with a blind hole (11).

7. A hand-pull chain pull-aid as claimed in claim 3, wherein: the body (1) is also provided with a blind hole (11).