CN203702910U

CN203702910U - Simple clutch

Info

Publication number: CN203702910U
Application number: CN201420077638.0U
Authority: CN
Inventors: 刘建伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-24
Filing date: 2014-02-24
Publication date: 2014-07-09
Anticipated expiration: 2024-02-24

Abstract

The utility model discloses a simple clutch and relates to a screen window reel mechanism. The simple clutch comprises a cap, a rotation element and a rotation shaft. A bolt hole is formed in the axial center of the cap, at least one lug is arranged oppositely on one end face, a through hole is formed in the axial center of the rotation element, driving teeth are arranged on one end face, two grooves matched with the cap lugs are arranged on the other end face, and the bottom of the grooves are inclined planes. A bolt hole is formed in the axial center of the head of the rotation shaft, the diameter of the middle is larger than the diameter of the head, and driven teeth are arranged on one side of the middle close to the head and are matched with the driving teeth. The rotation element is sleeved on the head of the rotation disc, the driving teeth are opposite to the driven teeth, the lugs arranged on the cap are inserted in the rotation element grooves, and the cap and the rotation element are connected and not locked through a screw. The clutch is simple in structure and convenient to use.

Description

A kind of simple clutch

Technical field

The utility model relates to the reels mechanism of screen window, refers in particular to a kind of simple clutch.

Background technique

In various machinery, clutch very universal.Known clutch, its structure is not too complicated, is exactly that member is excessive, is not suitable for being applied on some dingus.Along with the raising of people's living standard, to the improvement of household condition, substantially all adopt Door or window made of stainless steel, the screen window that in the past coordinates Door or window made of stainless steel is all plug-type more, uses inconvenience, mostly adopts now rolling curtain type.Current rolling curtain type screen window is to utilize spring energy-storage to realize screen window automatic coiling, but excessive velocities while volume on it easily makes screen window damage.For addressing this problem, model utility people has designed the rolling screen window with damping, utilize the damping force that buffer provides to make to roll up and become slowly, move soft closing on curtain window, rolling screen window with damping need to be used clutch, more area need to be left for to dress window screening due to screen window, therefore need to be smaller at the parts of movement means part, and simple in structure, but the clutch of existing conventional construction can not meet the demands.

Model utility content

An object of the present utility model is to propose a kind of clutch simple in structure.

For achieving the above object, provide following technological scheme:

A kind of simple clutch, comprises cap head, turns and rotating shaft, and described cap head axial centre arranges bolt hole, and an end face is oppositely arranged at least one projection; The described axial centre of turning arranges through hole, an end face is provided with driving tooth, and other end is provided with the groove matching with projection, and described groove floor is inclined-plane, bottom portion of groove is less than the height of projection to the ultimate range of end face, the height difference on inclined-plane is greater than the tooth depth of driving tooth and driven tooth; Described rotating shaft comprises head and middle part, described head axial centre arranges bolt hole, described middle part diameter is greater than head diameter, be provided with driven tooth at middle part near head one side, described driven tooth matches with the driving tooth of the upper setting of turning, the side unfolded drawing of described driving tooth and driven tooth is that multiple right-angled triangles are in one line, and one of them acute angle summit is connected with summit, right angle; Described in the head of described rotating shaft is set with, turn, and driven tooth is relative with driving tooth, in the groove on turning described in the projection arranging on cap head is inserted in, described cap headgear is contained in the head of described rotating shaft and by screw, cap head is connected with rotary shaft body and not locked.

Further, the projection on described cap head is two.

Preferably, there is axial draw-in groove described cap head side.

Preferably, the structure in a center of symmetry of turning described in.

The beneficial effects of the utility model are:

Cap head and rotating shaft are coaxially installed, and cap head projection is inserted in the groove on turning and can be able on the curve slope of groove, be slided, and the driving tooth on turning by control and the driven tooth interlock in rotating shaft, make rotating shaft follow cap head to rotate together with turning; In the time of opposite spin, owing to turning and the surface of contact of rotating shaft is the inclined-plane of tooth, rotation can make to turn and leave rotating shaft, and rotating shaft is not rotated following cap head together with turning, and realizes clutch function, simple in structure, easy to use.

Accompanying drawing explanation

Fig. 1 is a kind of simple clutch plan view of the utility model;

Fig. 2 is a kind of simple clutch sectional view of the utility model;

Fig. 3 is the swivel structure schematic diagram of a kind of simple clutch of the utility model;

Fig. 4 is window screen scroll structural representation.

Wherein: 1, cap head 2, turn, 3, rotating shaft, 4, screw, 5, drum, 6, resistance glue, 7, reel, 8, drum support arm, 9, screen window left frame, 10, fixed base, 11, spring, 12, spring supporting arm, 13, screen window right side jamb;

11, projection;

21, groove, 22, driving tooth;

31, head, 32, middle part, 33, driven tooth, 34, afterbody, 35, little axle.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail, to help understanding content of the present utility model.

Preferred embodiment one

As shown in Figures 1 to 4, the utility model comprises cap head 1, turn 2 and rotating shaft 3, cap head 1 axial centre arranges bolt hole, the size of bolt hole matches with the bolt hole of the head setting of rotating shaft 3, an end face at cap head 1 is oppositely arranged two projections 11, two projection 11 Central Symmetries, cap head 1 side is provided with axial draw-in groove, so that by matching with the projection of reel 7 inside cap head 1 with reel 7 to can be driven synchronous rotary by reel 7.2 axial centre of turning arrange through hole, the size of through hole matches with the head 31 of rotating shaft 3, an end face is provided with driving tooth 22, other end is provided with the groove 21 matching with projection 11, described groove 21 bottom surfaces are inclined-plane, groove 21 bottoms are less than the height of projection 11 to the ultimate range of end face, the height difference on inclined-plane is greater than the tooth depth of driving tooth 22 and driven tooth 33.The described symplex structure centered by 2 of turning.Rotating shaft 3 comprises head 31 and middle part 32, described head 31 axial centre arrange bolt hole, described middle part 32 diameters are greater than head diameter, be provided with driven tooth 33 at middle part 32 near head 31 1 sides, described driven tooth 33 matches with the driving tooth 22 arranging on 2 of turning, the side unfolded drawing of described driving tooth 22 and driven tooth 33 is that multiple right-angled triangles are in one line, and one of them acute angle summit is connected with summit, right angle; Described in being set with, the head 31 of described rotating shaft 3 turns 2, and driven tooth 33 is relative with driving tooth 22, two projections 11 that arrange on cap head 1 withstand on the bottom surface of the groove 21 on 2 of turning, and cap head 1 is sleeved on the head 31 of described rotating shaft 3 and by screw 4, cap head 1 is connected with rotary shaft body 3 and not locked.The periphery cross section of rotating shaft 3 afterbodys 34 is polymorphic structure, and afterbody 34 ends are provided with little axle 35, and little axle 35 diameters are less than afterbody 34 diameters; Drum 5 inner side are provided with the structure matching with rotating shaft 2 afterbodys 34, and drum 5 internal end surface are provided with the hole that the little axle 35 that arranges with rotating shaft 3 afterbodys 34 matches; Resistance glue 6 is laid in drum 5 inside, and rotating shaft 3 is inserted in drum 5, resistance glue 6 is out of shape and be distributed in rotating shaft 3 and drum 5 between; Drum 5 is fixedly connected with screen window left frame 9 by drum support arm 8 away from rotating shaft 3 one end, and drum support arm 8 sides are flexibly connected with reel 7, and reel 7 is played a supporting role.Drum 5, rotating shaft 3 and turning 2 do not contact with reel 7.Said structure is arranged on the left-half of reel 7.

Be provided with spring 11 at the right half part of reel 7, spring 11 is fixedly connected with reel 7 by fixed base 10 near cap head 1 one end, the other end of spring 11 is fixedly connected with screen window right side jamb 13 by spring supporting arm 12, spring supporting arm 12 sides are flexibly connected with reel 7, and reel 7 is played a supporting role.Spring supporting arm 12 coordinates together with fixed base 10, by unsettled spring 11 reel 7 inside that are arranged on.

Window screening twists on reel 7.

Specific works mode

When window screening is pulled open downwards, when window screening is launched, from Fig. 1 right side or Fig. 4 upside, reel 7 is rotated counterclockwise, drive cap head 1 to rotate counterclockwise, the projection 11 arranging on cap head 1 slides into lower by the eminence of curve slope turning on 2, cap head 1 continues rotation, the contacts side surfaces of projection 11 and two grooves 21 on 2 of turning, and drive turn 2 together rotation, driving tooth 22 and the mutual stress surface of driven tooth 33 are on the inclined-plane of tooth, under the mutual thrust producing on inclined-plane, turn 2 to the 1 direction slip of cap head, driving tooth 22 is no longer contacted with driven tooth 33, cap head 1 will rotate together with not driving rotating shaft 3 with 2 the rotation of turning.Because reel 7 is fixedly connected with spring 11 one end by fixed base 10, the other end of spring 11 is fixedly connected with screen window right side jamb 13 by spring supporting arm 12, and window screening is pulled open downwards when window screening is launched, and is out of shape accumulation of energy thereby spring is rotated.

When window screening is when furling back on reel, from Fig. 1 right side or Fig. 4 upside, due to the elastic force of spring 11, reel 7 is turned clockwise, drive cap head 1 to clockwise rotate, the projection 11 arranging on cap head 1 slides into eminence by the lower of curve slope turning on 2, projection 11 withstands on to turn on 2 will turn 2 to pushing away away from cap head 1 direction, make to turn 2 driving tooth 22 gradually near the driven tooth 33 of rotating shaft 3, finally make driving tooth 22 and driven tooth 33 interlocks, cap head 1 continues rotation, the contacts side surfaces of projection 11 and two grooves 21 on 2 of turning, and drive turn 2 together rotation, turn and 2 promote the driven tooth 22 of rotating shaft 3 by driving tooth 22, reach cap head 1, turn 2 together with rotating shaft 3 rotate.Drum 5 is fixedly connected with screen window left frame 9, between drum 7 and rotating shaft 3, is provided with resistance glue 6, and resistance glue 6 has certain elasticity and viscosity, can slow down the rotational velocity of rotating shaft 3, thereby slows down the rotational velocity of reel 7.

Can be found out by above working method, the projection on described cap head is two, and the transmission of power is balanced and simple in structure.Also can adopt one or more.

Claims

1. a simple clutch, is characterized in that: comprise cap head (1), turn (2) and rotating shaft (3), described cap head (1) axial centre arranges bolt hole, and an end face is oppositely arranged at least one projection (11); Described turning (2) axial centre arranges through hole, an end face is provided with driving tooth (22), other end is provided with the groove (21) matching with projection (11), described groove (21) bottom surface is inclined-plane, groove (21) bottom is less than the height of projection (11) to the ultimate range of end face, the height difference on inclined-plane is greater than the tooth depth of driving tooth (22) and driven tooth (33); Described rotating shaft (3) comprises head (31) and middle part (32), described head (31) axial centre arranges bolt hole, described middle part (32) diameter is greater than head diameter, at middle part, (32) are provided with driven tooth (33) near head (31) one sides, described driven tooth (33) matches with turn (2) upper driving tooth (22) arranging, the side unfolded drawing of described driving tooth (22) and driven tooth (33) is that multiple right-angled triangles are in one line, and one of them acute angle summit is connected with summit, right angle; Described in being set with, the head (31) of described rotating shaft (3) turns (2), and driven tooth (33) is relative with driving tooth (22), in the groove (21) of turning on (2) described in the upper projection (11) arranging of cap head (1) is inserted in, described cap head (1) is sleeved on the head (31) of described rotating shaft (3) and cap head (1) is connected with rotary shaft body (3) and not locked by screw (4).

2. clutch as claimed in claim 1, is characterized in that: the projection (11) on described cap head (1) is two.

3. clutch as claimed in claim 1, is characterized in that: there is axial draw-in groove described cap head (1) side.

4. clutch as claimed in claim 1, is characterized in that: described in (2) structure in a center of symmetry of turning.