CN214776788U

CN214776788U - Compact tensioner

Info

Publication number: CN214776788U
Application number: CN202120186691.4U
Authority: CN
Inventors: 袁振江; 张贵祥; 张海福; 苗岩; 齐小涛; 孙艳杰; 武兴旺; 樊志刚
Original assignee: China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Current assignee: China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-19
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a compact strainer is a novel strainer that is used for binding or hoist and mount, specifically speaking is a bind chain or suspension cable utensil annex for bind chain tensioning or suspension cable utensil length adjustment. Compared with the prior common tensioner, the left-handed screw, the inner and outer left and right screw sleeves and the right-handed screw sleeve form an inner and outer nested structure, the length of the tensioner is shortened by times under the same tensioning stroke, and the structure is more compact; the handle of the rotary pawl handle assembly is a foldable handle, and after the binding tensioning or hoisting length adjustment is completed, the handle can be pulled outwards and then is folded in a rotating mode, so that the occupied space is reduced, the handle has a spring lock function, and the use is safer and more reliable.

Description

Compact tensioner

Technical Field

The utility model relates to a novel a strainer for binding or hoist and mount for bind chain tensioning or sling length adjustment.

Background

In the prior art, the left and right threads of the tensioner are split at two ends, the length of the tensioner is increased due to the same tensioning stroke, the length of the tensioner is close to twice of the length of the same compact tensioner, and the self weight and the manufacturing cost of the tensioner are increased; in the prior art, the handle of the tensioner and the ratchet seat are in an integrated structure, after the handle finishes the tensioning of a binding chain or the length adjustment of a hanging chain, the handle is perpendicular to the main body of the tensioner, the occupied space is large, and the interference is easy to cause.

Disclosure of Invention

The utility model aims at: the original tensioner is optimally designed, and the left and right split type screw pairs at two ends are changed into a nested structure of an inner and outer left and right screw pairs; the ball socket embedded type rotating handle reduces the spatial interference of the vertical handle, the rotating handle is a ball socket embedded type and spring locking mechanism, the direction can be changed after the rotating handle is pulled out with force, and the use is safer and more reliable; the ratchet seat and the ratchet are optimally designed into the pawl handle assembly, so that the tensioner is more compact and portable.

The utility model adopts the technical proposal that: the utility model adopts the technical proposal that: matching a left-handed screw 2 of the tensioner with internal threads of the inner, outer, left and right screw sleeves 3 to form a left-handed screw pair, and matching external threads of the inner, outer, left and right screw sleeves 3 with the right-handed screw sleeve 5 to form a right-handed screw pair; the pawl handle assembly 4 is designed at one end of the left and right screw sleeves 3 inside and outside the compact tensioner and is fixed by a shaft retainer ring 7. The wedge-shaped lower end of the pawl 46 is pressed into the locking grooves 31 in the inner, outer, left and right screw sleeves 3 by the pawl spring 45 to form a pawl-ratchet-like mechanism, the wedge-shaped direction of the pawl 46 is changed by pulling and rotating the hand wheel 44 to lock the common rotating direction of the pawl handle assembly 4 and the inner, outer, left and right screw sleeves 3, and the tensioning and the releasing of the tensioner are marked by "+" and "-" of the rotary seat 47. The rotary seat 47 of the pawl handle assembly 4 is designed with two ball sockets of the inner, outer, left and right screw sleeves 3 which are vertical and parallel, and the handle 43 presses the spherical end of the handle 43 into any one ball socket of the rotary seat 47 through the elastic rolling pin, the handle 43, the connecting pin 41 and the handle spring 42; pulling out the handle 43 and rotating the fold may change the handle 43 orientation. When not in use, the handle 43 can be folded to the direction parallel to the inner, outer, left and right screw sleeves 3, and the handle spring 42 is pressed tightly after the folding is rotated, so that the handle 43 is ensured not to swing freely. The left-handed screw 2 and the connecting lug of the connecting lug 6 are connected with the connecting lug through a U-shaped groove, so that the connecting pin 1 structure is penetrated through, the auxiliary parts are conveniently replaced, and the application range of the compact tensioner is wider.

The utility model has the advantages that: through the optimized design of the technical scheme, the series of tensioners are light in weight, compact in structure, more convenient and reliable to use, low in production cost and good in market popularization prospect.

Description of the drawings:

FIG. 1 is a three-dimensional schematic view of a compact tensioner of the present invention with the handle in operation;

FIG. 2 is a three-dimensional schematic view of the folded handle compact tensioner of the present invention;

FIG. 3 is a three-dimensional exploded view of the compact tensioner of the present invention;

in the figure: 1 connecting pin, 2 left-handed screw, 3 inner, outer, left and right screw sleeves, 4 ratchet wheel handle components, 5 right-handed screw sleeves, 6 connecting lugs, 7 shaft retainer rings, 31 locking grooves, 41 handle connecting pin, 42 handle spring, 43 handle, 44 hand wheel, 45 pawl spring, 46 pawl and 47 rotary seat

The implementation mode is as follows:

the utility model provides a left-handed screw pair formed by matching a left-handed screw 2 of the tensioner with internal threads of an inner, an outer, a left and a right screw sleeves 3 of the tensioner, and a right-handed screw pair formed by matching external threads of the inner, the outer, the left and the right screw sleeves 3 with a right-handed screw sleeve 5; the pawl handle assembly 4 is designed at one end of the left and right screw sleeves 3 inside and outside the compact tensioner and is fixed by a shaft retainer ring 7. The wedge-shaped lower end of the pawl 46 is pressed into the locking grooves 31 in the inner, outer, left and right screw sleeves 3 by the pawl spring 45 to form a pawl-ratchet-like mechanism, the wedge-shaped direction of the pawl 46 is changed by pulling and rotating the hand wheel 44 to lock the common rotating direction of the pawl handle assembly 4 and the inner, outer, left and right screw sleeves 3, and the tensioning and the releasing of the tensioner are marked by "+" and "-" of the rotary seat 47. The rotary seat 47 of the pawl handle assembly 4 is designed with two ball sockets of the inner, outer, left and right screw sleeves 3 which are vertical and parallel, and the handle 43 presses the spherical end of the handle 43 into any one ball socket of the rotary seat 47 through the elastic rolling pin, the handle 43, the connecting pin 41 and the handle spring 42; pulling out the handle 43 and rotating the fold may change the handle 43 orientation. When not in use, the handle 43 can be folded to the direction parallel to the inner, outer, left and right screw sleeves 3, and the handle spring 42 is pressed tightly after the folding is rotated, so that the handle 43 is ensured not to swing freely. The left-handed screw 2 and the connecting lug of the connecting lug 6 are connected with the connecting lug through a U-shaped groove, so that the connecting pin 1 structure is penetrated through, the auxiliary parts are conveniently replaced, and the application range of the compact tensioner is wider.

Claims

1. Compact strainer, characterized by: mainly comprises a connecting pin (1), a left-handed screw (2), an inner, an outer, a left-handed and a right-handed screw sleeve (3), a pawl handle component (4), a right-handed screw sleeve (5) and a connecting lug (6); the left-handed screw (2) is matched with the internal threads of the inner, outer, left and right screw sleeves (3) to form a left-handed screw pair, and the external threads of the inner, outer, left and right screw sleeves (3) are matched with the right-handed screw sleeve (5) to form a right-handed screw pair; the pawl handle assembly (4) is designed at one end of the left and right screw sleeves (3) inside and outside the compact tensioner and is fixed through a check ring (7) for a shaft.

2. The compact tensioner as in claim 1, wherein: a rotary seat (47) of the pawl handle assembly (4) is sleeved at one end of the inner, outer, left and right spiral sleeves (3), the wedge-shaped lower end of the pawl (46) is pressed into locking grooves (31) in the inner, outer, left and right spiral sleeves (3) through a pawl spring (45) to form a pawl-ratchet mechanism, the wedge-shaped direction of the pawl (46) is changed by pulling and rotating a hand wheel (44) to lock the common rotating direction of the pawl handle assembly (4) and the inner, outer, left and right spiral sleeves (3), and tensioning and loosening of the tensioner are marked by plus and minus of the rotary seat (47).

3. The compact tensioner as in claim 1, wherein: a rotary seat (47) of the pawl handle assembly (4) is provided with two ball sockets of a vertical, parallel, inner, outer, left and right screw sleeve (3), and the handle (43) presses the spherical end of the handle (43) into any ball socket of the rotary seat (47) through an elastic rolling pin, the handle (43), a handle connecting pin (41) and a handle spring (42); the handle (43) can be changed in direction by pulling out the handle (43) and rotating and folding.