CN201518650U

CN201518650U - Self-locking hoister

Info

Publication number: CN201518650U
Application number: CN2009202384994U
Authority: CN
Inventors: 许向东
Original assignee: JINJIANG ZHONGXING MUXIE CO Ltd
Current assignee: JINJIANG ZHONGXING MUXIE CO Ltd
Priority date: 2009-11-02
Filing date: 2009-11-02
Publication date: 2010-07-07
Anticipated expiration: 2019-11-02

Abstract

The utility model relates to a self-locking hoister with convenient use. The self-locking hoister comprises a rocker arm, a torsion spring, a casing, and a driving wheel, a driven wheel and a rocker arm wheel, which are rotatablely arranged on the casing, wherein the driving wheel and the driven wheel are meshed to drive, a holding groove is arranged on the driven wheel for holding flexible material, a fan-shaped block which partially extends along the axial direction is arranged outside a pinion, a circular ring is arranged on the axial direction of the rocker arm wheel, the circular ring is provided with a fan-shaped notch which is larger over 15 degrees than a circumferential angle of the fan-shaped block, the torsion spring is arranged on the circuit ring, the two ends of the torsion spring are fixed on the side walls of the fan-shaped notch, the driving wheel and the rocker arm wheel are coaxially arranged on the casing through the axial mutual matching of the fan-shaped block and the fan-shaped notch, the outer side wall of the torsion spring is matched with the casing in clearance, and the rocker arm can be extensible and arranged on one side of the axial direction of the rocker arm shaft.

Description

A kind of self-locking winch

Technical field

The utility model relates to a kind of self-locking winch, and it is used for flexible material is carried out rolling and uncoiling, belongs to a kind of of industrial and agricultural machinery equipment.

Background technology

Existing animal farm generally is provided with the cage house, and according to the difference of weather, the cage house can enclosure wall be set on every side or curtain intercepts mutually, when weather conditions allow, can open curtain or enclose shelves, make the livestock outdoor activity in the cage house, perhaps be used to improve cage house circulation of air effect.In more occasion, the cage house sidewall bottom of animal farm is to make with brick mix structure, and the top of cage house sidewall is that the PE canvas covers, when ventilating, generally needing manually curls it puts in order, and when weather conditions are bad, again the PE canvas is located at the upside of cage house sidewall, whole work is loaded down with trivial details, wastes time and energy.People have introduced winch and have been used for uncoiling and rolling to canvas for this reason, though it has improved operating efficiency, known winch can not be at any time be fixed up uncoiling or the rolling state of canvas, also has quite inconvenience in the use.

Summary of the invention

The purpose of this utility model provides a kind of self-locking winch easy to use.

The technical scheme that the utility model adopted is such: a kind of self-locking winch, comprise rocking arm, torsion spring, housing and the rotatable driving wheel of being located on the housing, driven pulley and rocking arm wheel, described drive sprocket axle is provided with pinion to a side, be provided with the secter pat of part extension vertically in the pinion outside, described rocking arm wheel shaft is provided with annulus to a side, described annulus along the circumferential direction offers than the above sector notch of big 15 degree of the shared circumference angle of described secter pat, described torsion spring set is located on the annulus, the two ends of torsion spring are fixedly arranged on the sidewall of sector notch, described driving wheel and rocking arm wheel axially agrees with being located on the housing and the lateral wall and the setting of housing interference fit of torsion spring mutually by secter pat and sector notch, described driven pulley is parallel with driving wheel to be located on the housing, driven pulley is provided with gear wheel, described gear wheel and pinion transmission are provided with, described driven pulley is provided with the storage tank that is used to batch flexible material, and described rocking arm can discharge is located at the rocking arm wheel shaft to a side.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: when rocking arm drives the rocking arm wheel and rotates; the sector notch of rocking arm wheel drives torsion spring one end and rotates with respect to the other end; and then make the torsion spring external diameter shrink; torsion spring and housing interference fit change into matched in clearance; the rocking arm wheel further rotates and drives driving wheel and rotate; the engaged transmission by pinion and gear wheel makes flexible material be uncoiled and rolling by driven pulley; when pinion no longer is subjected to the moment of rocking arm; torsion spring since screen resilience again with housing formation interference fit; make driving wheel not be subjected under the situation of external force; winch can not carry out uncoiling and rolling; thus the realization auto-lock function, this kind winch greatly facilitates the practical application of industrial and agricultural production.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the utility model specific embodiment;

Fig. 2 is the stereogram of winch among Fig. 1;

Fig. 3 is another visual angle stereogram of winch among Fig. 1;

Fig. 4 is driving wheel among Fig. 1, driven pulley meshing transmission structure schematic diagram.

Embodiment

Referring to figs. 1 to Fig. 4, the utility model embodiment discloses a breeding enterprise winch, and wherein the cage of animal farm house sidewall encloses with canvas and forms, and needs canvas is rolled under ventilation state.Adopt a kind of self-locking winch in this embodiment, it comprises rocking arm 1, torsion spring 2, housing 3 and the rotatable driving wheel of being located on the housing 34, driven pulley 5 and rocking arm wheel 6, described driving wheel 4 axial sides are provided with pinion 41, axially be provided with the secter pat 42 that partly extends vertically in the outside at pinion 41, described secter pat 42 angle along the circumferential direction is 30 degree, described rocking arm is taken turns 6 axial sides and is provided with annulus 61, described annulus 61 along the circumferential direction offers the sector notch 611 that angle is 70 degree, described torsion spring 2 is sheathed on the annulus 61 radial outside walls, the two ends of torsion spring 2 are fixedly arranged on the sidewall of sector notch 611, described driving wheel 4 and rocking arm wheel 6 axially agreeing with mutually by secter pat 42 and sector notch 611 with being located on the housing 3 and the lateral wall of torsion spring 2 and housing 3 interference fit settings, described driven pulley 5 and driving wheel 4 parallel being located on the housing 3, driven pulley 5 is provided with gear wheel 51, described gear wheel 51 and pinion 41 engaged transmission settings, described driven pulley 5 is provided with the storage tank 52 that is used to batch flexible material, and described rocking arm 1 can discharge to be located at rocking arm and to take turns 6 axial sides.

When installing, after canvas 7 carried out by preliminary dimension, its upside is along fixing by steel pipe 71, its downside is along being fixed on the steel pipe 72, an axial end of described steel pipe 72 is provided with cable wire wheel 8, one end of cable wire 9 is set around cable wire wheel 8 and finally is fixed on the ground, and the other end of cable wire 9 is fixedly arranged on the storage tank 52 by pulley 91, and the self-locking winch is fixed on the wall.With reference to figure 1, in winding cable wire 9, suppose to make canvas 7 outwards to scroll up, then take turns 8 right sides from cable wire and see, cable wire wheel 8 needs clockwise rotate at this moment, and cable wire wheel 8 is clockwise rotated, at this moment, cable wire 9 is taken turns inside right-to-left winding under 8 laterals from cable wire after pulley 91 gets off, from the right side of cable wire wheel 8, cable wire is counterclockwise winding.When rotating the rocking arm 1 of self-locking winch, the cable wire 9 that cable wire is taken turns 8 tops moves up, drive cable wire wheel 8 and clockwise rotate, the cable wire 9 that is set around on the cable wire wheel 8 is released, and drives canvas 7 when cable wire wheel 8 clockwise rotates simultaneously and outwards upwards batches, this is the canvas wrapup procedure, otherwise the cable wire that makes cable wire take turns 8 tops moves down, because the deadweight effect of cable wire wheel 8 and canvas 7, cable wire wheel 8 rotates counterclockwise, and canvas 7 is unreeled.

Claims

1. self-locking winch, it is characterized in that: comprise rocking arm, torsion spring, housing and the rotatable driving wheel of being located on the housing, driven pulley and rocking arm wheel, described drive sprocket axle is provided with pinion to a side, be provided with the secter pat of part extension vertically in the pinion outside, described rocking arm wheel shaft is provided with annulus to a side, described annulus along the circumferential direction offers than the above sector notch of big 15 degree of the shared circumference angle of described secter pat, described torsion spring set is located on the annulus, the two ends of torsion spring are fixedly arranged on the sidewall of sector notch, described driving wheel and rocking arm wheel axially agrees with being located on the housing and the lateral wall and the setting of housing interference fit of torsion spring mutually by secter pat and sector notch, described driven pulley is parallel with driving wheel to be located on the housing, driven pulley is provided with gear wheel, described gear wheel and pinion transmission are provided with, described driven pulley is provided with the storage tank that is used to batch flexible material, and described rocking arm can discharge is located at the rocking arm wheel shaft to a side.