CN205172398U

CN205172398U - Automatic transfer hindering of varistor buddhist nun and fall device

Info

Publication number: CN205172398U
Application number: CN201520588668.2U
Authority: CN
Inventors: 黄贤德; 黄昱玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-06
Filing date: 2015-08-06
Publication date: 2016-04-20
Anticipated expiration: 2025-08-06

Abstract

The utility model relates to an automatic transfer hindering of varistor buddhist nun and fall device, it includes: a fixing base, the horizontal recessed groove that bridges that is equipped with of central authorities, two ends vertically respectively recessed being equipped with stride the mouth, the bottom of striding mouthful be a half slot and personally experiences sth. Part of the body, the foretell mouth of striding can be arranged in by upper and lower movable sleeve to the opening bearing that an at least elastic space meets an emergency, and the bottom of opening bearing is equipped with one and bears the curved surface, a radial surface can supply the stopper wheel that the stay cord coiled, falls to putting at the groove space that bridges, and vertical two ends are the stopper axle. Mat opening bearing is the elastic space adaptability to changes, works as the stopper wheel that bears when receiving the stay cord stopper to produce heavy load, can be to the rotation of stopper wheel, and according to the size of heavy load power, the damping that produces the direct radio. The utility model provides an in the curtain group that the level book was put, have to hinder and fall the effect.

Description

The resistance falling unit of automatic modulation damping

Technical field

The utility model relates to a kind of resistance falling unit of modulation damping automatically.

Background technology

If associated horizon formula puts the groups of shades 10 of heavy curtain 14, as Fig. 1, shown in Fig. 2, basis is provided with upper purlin 11 and a lower purlin 12, upper purlin 11 connects heavy curtain 14 with between lower purlin 12, if heavy curtain 14 is subject to again the break-through of stay cord 13 and opens link support, stay cord 13 lower end secure bond lower purlin 12, upper end interlock one has elasticity and to rely on oneself the reeling-up reeling-out device 1 feeding back to and reel rope 13, stay cord 13 is from reeling-up reeling-out device 1 outlet, cross the reel 20 set by a wire passing device 2, formed and down transfer, through heavy curtain 14 arrives lower purlin 12, wire passing device 2 is provided with a holder 21, front and back two ends are provided with axis hole 22, wheel shaft 200 hub settings of reel 20 are provided, wheel shaft 200 and axis hole 22 are that pivot alive combines, if wherein the putting and whole work of bringing drill to an end of curtain, do for user operates lower purlin 12, lower push-and-pull gained, when up electing, the feedback force that reeling-up reeling-out device 1 stores, act as retracting stay cord 13, and then whole receipts heavy curtain 14, if when down putting, user pulls lower purlin 12 down, to drive stay cord 13 toward downward-extension, in process, namely reeling-up reeling-out device 1 obtains a flexible feedback energy storage.

Above-mentioned feedback energy storage acts on to lower purlin 12 at any time, maintain the force up retracted by lower purlin 12, if highly all can locate arbitrary putting to allow lower purlin 12, commonly be provided with a weight element at lower purlin 12, to balance the feedback backrush power that reeling-up reeling-out device 1 produces, allow lower purlin 12 can be determined at arbitrary height, separately due to the counterweight of lower purlin 12, with the feedback backrush power of reeling-up reeling-out device 1 for balance, so the height and position of external force and variable lower purlin 12 a little, especially when lower purlin 12 is placed down in the air, heavy curtain 14 is subject to the stirring of wind-force, form a momentum, allow lower purlin 12 can increase quality down landing, in order to avoid this landing, between reeling-up reeling-out device 1 and wire passing device 2, be then provided with the device (figure does not show) of interfering stay cord 13 to glide, or the interference element of many groups is provided with at wire passing device 2, be not easy to glide to lock stay cord 13, but the backrush energy having rung reeling-up reeling-out device 1 is drawn again in this interference, reeling-up reeling-out device 1 is allowed to be difficult to retract stay cord 13.

Major design important document is lower purlin 12 when suspending in mid air, its gravity will with the feedback backrush dynamic balance of reeling-up reeling-out device 1, especially because centrifugal force exists, so prevent the mechanism of lower purlin 12 landing from being major subjects.

The counterweight of relevant lower purlin 12, maximum value is up after whole receipts heavy curtain 14, the heavy curtain 14 of overlapping is because assembling, so whole receipts more up, lower purlin 12 and stay cord 13 loading larger, hereat need not counterweight, allow exerting oneself of reeling-up reeling-out device 1 can nail lower purlin 12 not landing, if but if heavy curtain 14 is put completely, it is maximum that the elastic feedback that reeling-up reeling-out device 1 accumulates reclaims strength, counterweight is provided with at lower purlin 12 so common, with the feedback backrush power of the power of balance antagonism reeling-up reeling-out device 1, lower purlin 12 can be stabilized in below, below can be positioned at effectively to allow lower purlin 12, increasing weight mass, that yes is the easiest, but counterweight is overweight, reeling-up reeling-out device 1 feedback energy is caused again to bear.

Summary of the invention

The purpose of this utility model is to provide a kind of resistance falling unit of modulation damping automatically, its groups of shades for providing horizontal roll to put, and what turn to heavy curtain at stay cord crosses crook, provides a tool to hinder the resistance falling unit falling effect.

In order to reach above-mentioned purpose, the utility model realizes like this, a kind of resistance falling unit of modulation damping automatically, it includes: a holder, central authorities are laterally recessed to be provided with one and to bridge groove, two ends are longitudinally recessed to be respectively provided with across mouth, and the bottom across mouth is a half slot body, semicircle cell body two side direction is extended with the two arc tangent planes tiltedly opened outward respectively; The opening bearing of at least one tool elastic space strain, can be placed in above-mentioned across mouth by upper and lower movable sleeve, the bottom of opening bearing is provided with a carrying curved surface, two sides are up tiltedly opened outward respectively through open-angle and are expanded out two diagonal cutting plates, and carrying curved surface and the appearance width of open-angle and the inner side of above-mentioned semicircle cell body are activity tolerance fit, the carrying curved surface of opening bearing when underloading, for soaring into across above the semicircle cell body of mouth; The stopper wheel that one radial surface can coil for stay cord, fall to putting at the slot space that bridges, longitudinally two ends are stopper axle, and stopper axle is movable strides into above-mentioned opening bearing, and its diameter is activity tolerance fit with carrying curved surface.

Described resistance falling unit is located at two sides of the upper purlin of groups of shades, provides stay cord to walk around.

The described bottom across mouth is a half slot body, and two sides of semicircle cell body connect one end of arc tangent plane through flat face, arc tangent plane is tiltedly opened outward.

The bottom of described opening bearing is a carrying curved surface, and two sides up connect the diagonal cutting plate of two sides respectively through parallel surface.

The surface of described stopper wheel is elastic surface.

The cross section of described stopper wheel is polygonal.

Described opening bearing is that an elastic strip body is integrally formed through bending.

Further, this carrying curved surface is half round surface.

Further, this semicircle cell body is half round surface.

The resistance falling unit that the utility model provides, if the groups of shades being used in that horizontal puts heavy curtain, can the gravity size of stress heavy curtain, or the external force size of influenced downslide, maximum damping force can be reflected by direct ratio when maximum, avoid heavy curtain to glide, without interfering during backrush.

Accompanying drawing explanation

Fig. 1 is groups of shades body member elevation.

Fig. 2 is the schematic diagram of general curtain wire passing device

Fig. 3 is structural upright relation schematic diagram of the present utility model.

Fig. 4 is the position view of the utility model stopper axle when most underloading.

Fig. 5 is the shift in position schematic diagram of the utility model stopper axle when maximum gravity.

Fig. 6 is the schematic diagram that stopper wheel surface is provided with polygon.

Symbol description

Groups of shades 10 reeling-up reeling-out device 1 upper purlin 11

Lower purlin 12 stay cord 13 heavy curtain 14

Wire passing device 2 reel 20 holder 21

Wheel shaft 200 axis hole 22 hinders falling unit 3

Stopper takes turns 30 holder 31 stopper axles 300

Semicircle cell body 33 bridges groove 310 flat face 34

Obtuse angle 301 joint face 302 is across mouth 32

Arc tangent plane 35 opening bearing 4 strides into opening 40

Carrying curved surface 41 open-angle 42 diagonal cutting plate 43

Parallel surface 44 width W

Detailed description of the invention

Relevant detailed configuration of the present utility model and operating principle, refer to graphic being described as follows:

First refer to shown in Fig. 3, resistance falling unit 3 set by the utility model was also curved for stay cord 13 can be provided to coil a circle above, when the drop-down strength of stay cord 13 increases, 30 turnover activities can be taken turns to the stopper walked around, produce the interference damping force that direct ratio strengthens, mainly be provided with a holder 31, laterally recessedly be provided with one and bridge groove 310, this groove 310 that bridges provides stopper wheel 30 institute to fall to putting, it is stopper axle 300 that stopper takes turns 30 rear and front ends, and longitudinal being recessed into respectively has across mouth 32 in holder 31 rear and front end, be formed with towards the two ends of upper shed the arc tangent plane 35 tiltedly opened outward across mouth 32, bottom is a half slot body 33, across on the table body of mouth 32, lower movable sleeve is connected to an opening bearing 4, this opening bearing 4 is tool elastic deformability, can be a spring plate through bending shaping, bottom is provided with carrying curved surface 41, the both sides of carrying curved surface 41 have expanded diagonal cutting plate 43 outward via open-angle 42, and the diameter of carrying curved surface 41 is slightly larger than the stopper axle 300 of stopper wheel 30, there is provided after stopper axle 300 bridges, moving rotary can be obtained, opening bearing 4 be upward one expand shape stride into opening 40, stopper axle 300 break-through is provided to accommodate interior table into carrying curved surface 41, and the outer inclined-plane of diagonal cutting plate 43, for point-like the both sides arc tangent plane 35 leaned against across mouth 32 can be cut.

Shown in Fig. 4, the stopper axle 300 of stopper wheel 30 is stride into from the opening 40 that strides into of opening bearing 4, the lower round table of stopper axle 300 can be sticked on the interior circular bottom surface of carrying curved surface 41, carrying curved surface 41 is at least half round surface, under the impact of stopper wheel 30 by external force down weight, the carrying curved surface 41 of opening bearing 4 holds the bottom disc of stopper axle 300, diagonal cutting plate 43 appearance of opening bearing 4, then hob at holder 31 across the arc tangent plane 35 set by mouth 32 upper end, under this kind of state, carrying curved surface 41 both sides can not be right appearance produce interference capability, and under underloading, between the carrying height of curved surface 41 and the semicircle cell body 33 across mouth 32, an empty height distance is adjusted via the elongation of flat face 34, make when stay cord 13 (figure does not show) is not by the light condition that obvious external force is drop-down, carrying curved surface 41 is for soaring above semicircle cell body 33, the relative width of two side open-angles 42 does not change hereat, and two skew back cutting plates 43 remain unchanged and dynamic expand shape, outer inclined-plane hobs in some positions, the surface of arc tangent plane 35.

Shown in Fig. 5, when stopper wheel 30 is subject to making stopper axle 300 times borders because of stay cord 13 pulled down, then namely opening bearing 4 does the interference of damping due to rotation to the stopper axle 300 of stopper wheel 30, the strength of above-mentioned stay cord 13 pulled down, there is artificial and natural external force two kinds, the effect strength of natural external force, normality draw stay cord 13 of pulling toward drop-down strength of pulling for being less than user, this draws stay cord 13 of pulling toward drop-down strength of pulling, shown in Fig. 1, if for pulling the lower purlin 12 of this lower edge downwards to put heavy curtain 14, user draws the strength of lower purlin 12 of pulling, for being greater than the damping strength of the utility model opening bearing 4 pairs of stopper wheels 30, so the operation of transferring heavy curtain 14 can be met, the problem that the utility model mainly overcomes, avoid heavy curtain 14 because of deadweight downslide, or be subject to flickering of natural wind, and make the state that lower purlin 12 and heavy curtain 14 are transferred.

The open-angle 42 of opening bearing 4 is for having curved stress, and set diagonal cutting plate 43 appearance, for hobbing across the arc tangent plane 35 set by both sides, mouth 32 upper end, be subject to stopper axle 300 at the carrying curved surface 41 of opening bearing 4 to press down, then close toward the semicircle cell body 33 across mouth 32, stroke through flat face 34 is close toward the semicircle cell body 33 across mouth 32, also pull the diagonal cutting plate 43 down sliding cutting arc tangent plane 35 of upper end simultaneously, the relative distance of two skew back cutting plates 43 is subject to arc tangent plane 35 specifications of two permanent positions, therefore contracting is leaned on relatively, by the stress of open-angle 42, the parallel surface 44 of interlock both sides is close to each other, its relative width W is reduced, this reduces i.e. interlock parallel surface 44 and carrying curved surface 41 and produces the effect of the bundle heart and tighten stopper axle 300 and produce frictional damping, be then from Fig. 4 to Fig. 5 among, in the change in process that stopper axle 300 declines, namely opening bearing 4 produces in response to external force size and is the elastic damping power of direct ratio, act on to stopper wheel 30 through stopper axle 300, stopper wheel 30 surface is for coiling for stay cord 13, produce frictional force, allow stay cord 13 can not down landing, this kind of damping strength, overcome in natural wind-force, the high wind of certain pulsed, then curtain can not be used, so the antagonism of this kind of powerful pulse wind-force, this case is not considered.

Make a general survey of shown in Fig. 4 to Fig. 5, the diagonal cutting plate 43 that opening bearing 4 is set under underloading, can the strength of its elastic dilatation of mat, hob at the arc tangent plane 35 across mouth 32, and make stopper axle 300 for hanging shape, when external force or wind-force start heavy curtain 14 (referring to shown in Fig. 1), one momentum then occurs, can impel lower purlin 12 down landing, this lower purlin 12 down landing will will first pull stay cord 13, but stay cord 13 because of stopper wheel 30 be subject to opening bearing 4 limit and cannot rotate, namely stay cord 13 is stopped surely.

System is that stay cord 13 is by External Force Acting, then stopper axle 300 can fall into the carrying curved surface 41 of opening bearing 4 because of stay cord 13 direction down, downforce meeting interlock diagonal cutting plate 43 entirety of stopper axle 300 down, diagonal cutting plate 43 has elasticity and expands ability, within down in compression process, width by the connection meeting interlock parallel surface 44 of open-angle 42 inside contracts, and produce a strength of tightening to center, make the appearance of the inner surface friction stopper axle 300 of carrying curved surface 41 and parallel surface 44, so stopper axle 300 is subject to frictional interference, produce the damping of the rotation restriction of a pair stopper wheel 30, and be obliquely cut button according to diagonal cutting plate 43 change procedure from top to bottom, utilize this slope variation and increase the strength of tightening of opening bearing 4 pairs of stopper axles 300, this increases to gradual, stay cord 13 is down pullled, the high process of variation stopper axle 300, under underloading, opening bearing 4 pairs of stopper axles 300 do slight frictional interference, the stopper axle 300 but the maximum gravity of stay cord 13 is left behind, then namely opening bearing 4 produces the larger frictional force of direct ratio and prevents stopper axle 300, the rotation making stopper take turns 30 is subject to powerful damping.

Shown in Fig. 6, the utility model stopper axle 300 and stopper are coaxial between taking turns 30, certain frictional force is needed again between stopper wheel 30 and stay cord 13, then in the appearance of stopper wheel 30, obtuse angle 301 can be provided with, joint face 302 between two obtuse angles 301 also provides the relative belly of stay cord 13 to rub, the friction of stay cord 13 belly is increased by obtuse angle 301, or stopper wheel 30 cylindrical table, be set to the elastic surface of elastic deformation, allow stay cord 13 walk around after produce bundle pressure friction, the action relationships that can really completely allow stay cord 13 and stopper take turns 30 obtains the synchronous interaction of essence.

The utility model utilizes one to be located at groups of shades 10 and crosses the resistance falling unit 3 of crook, stay cord 13 1 is provided to enclose above coiling, and cross down curved, and when providing stay cord 13 lower pulling force amount to change, can in response to going out relative damping force, stay cord 13 can not be glided, again again backrush heavy curtain time, resistance falling unit 3 pairs of stay cords 13 not yield external interference is the necessity in response to practice demand, the interference damping that in working order, reply is necessary and unnecessary is the design of an innovation in fact.

Claims

1. the resistance falling unit of an automatic modulation damping, it is characterized in that it includes: a holder, central authorities are laterally recessed to be provided with one and to bridge groove, and two ends are longitudinally recessed to be respectively provided with across mouth, bottom across mouth is a half slot body, semicircle cell body two side direction is extended with the two arc tangent planes tiltedly opened outward respectively; The opening bearing of at least one tool elastic space strain, can be placed in above-mentioned across mouth by upper and lower movable sleeve, the bottom of opening bearing is provided with a carrying curved surface, two sides are up tiltedly opened outward respectively through open-angle and are expanded out two diagonal cutting plates, and carrying curved surface and the appearance width of open-angle and the inner side of above-mentioned semicircle cell body are activity tolerance fit, the carrying curved surface of opening bearing when underloading, for soaring into across above the semicircle cell body of mouth; The stopper wheel that one radial surface can coil for stay cord, fall to putting at the slot space that bridges, longitudinally two ends are stopper axle, and stopper axle is movable strides into above-mentioned opening bearing, and its diameter is activity tolerance fit with carrying curved surface.

2. the resistance falling unit of automatic modulation damping according to claim 1, is characterized by two sides that resistance falling unit is located at the upper purlin of groups of shades, provides stay cord to walk around.

3. the resistance falling unit of automatic modulation damping according to claim 1, the bottom that it is characterized by across mouth is a half slot body, and two sides of semicircle cell body connect one end of arc tangent plane through flat face, arc tangent plane is tiltedly opened outward.

4. the resistance falling unit of automatic modulation damping according to claim 1, the bottom that it is characterized by opening bearing is a carrying curved surface, and two sides up connect the diagonal cutting plate of two sides respectively through parallel surface.

5. the resistance falling unit of automatic modulation damping according to claim 1, the surface that it is characterized by stopper wheel is elastic surface.

6. the resistance falling unit of automatic modulation damping according to claim 1, the cross section that it is characterized by stopper wheel is polygonal.

7. the resistance falling unit of automatic modulation damping according to claim 1, it is characterized by opening bearing is that an elastic strip body is integrally formed through bending.

8. the resistance falling unit of automatic modulation damping according to claim 1, it is characterized by this carrying curved surface is half round surface.

9. the resistance falling unit of automatic modulation damping according to claim 1, it is characterized by this semicircle cell body is half round surface.