CN100486488C - Mosquito net elevator with clutch - Google Patents
Mosquito net elevator with clutch Download PDFInfo
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- CN100486488C CN100486488C CNB021474850A CN02147485A CN100486488C CN 100486488 C CN100486488 C CN 100486488C CN B021474850 A CNB021474850 A CN B021474850A CN 02147485 A CN02147485 A CN 02147485A CN 100486488 C CN100486488 C CN 100486488C
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- clutch
- fluted disc
- mosquito net
- elevating mechanism
- strand cable
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Abstract
The mosquito net elevator with clutch includes driver, rope twisting wheel and elevating rope and features the clutch between the driver and the rope twisting wheel. During raising the mosquito net, the driver is coupled via the clutch to the rope twisting wheel, so that the driving force of the driver is transferred to the rope twisting wheel to draw the net to ascend. During lowering the mosquito net, the driver is separated by the clutch from the rope twisting wheel, so that the wheel rotates alone and the net descend on its self weight. Therefore, the mosquito net elevator can be so designed that the net ascene speed is relatively low and the net descent speed is relatively high, and this results in low production cost and long service life of the mosquito net.
Description
Technical field
The present invention relates to be used for the elevating mechanism of Mosquito net with height adjustable function, the mosquito net elevating mechanism of clutch is particularly arranged.
Background technology
The elevating mechanism of existing known Mosquito net with height adjustable function has a variety of, more representational have patent No. 96245927.5,88100560.6 number patent, 97245992.8 number patent, 01242473.0 number patent, the common feature of these elevating mechanisms is to take turns the purpose that the halliard that is called " halliard " or " drag-line " of reeling reaches Mosquito net with height adjustable function with a strand cable that is called " strand cable wheel " or " wire-wound dish ", and its shortcoming is:
88100560.6 the elevating mechanism of number patent, No. 97245992.8 patents and No. 01242473.0 patent all is electronic, lack the landing automatic stop arrangement that adapts to the mosquito net of differing heights automatically, 97245992.8 the user of number patent and No. 01242473.0 patent must manually be stopped, if fault is taken turns and caused to the careless and inadvertent halliard strand cable that rewound back that just may make, 01242473.0 the landing automatic stop arrangement of number patent can not adapt to the mosquito net of differing heights automatically, and commercial electric up-down mosquito net requires to adapt to automatically the differing heights requirement of different home.
88100560.6 the elevating mechanism of number patent, No. 97245992.8 patents and No. 01242473.0 patent all lacks the brake apparatus of flexibility and reliability, 88100560.6 the sponge that number patent is used to brake has also increased the load of motor when bringing into play braking action to the frictional resistance of wire-wound dish, itself also can very fast abrasion and is ineffective, 97245992.8 number patent and No. 01242473.0 patent are not mentioned arrestment mechanism fully, if motor and speed reduction gearing thereof do not have parking brake function, then, mosquito net is easy to automatic landing after rising.
When mosquito net lands, the halliard of all elevating mechanisms of background technology all is to rely on the deadweight traction of mosquito net and be drawn out the strand cable wheel, if there is one or several halliard to lose the traction of mosquito net deadweight, certain position that this situation more easily occurs in mosquito net is unexpectedly by the foreign matter support or collude extension and can not land, perhaps halliard play because of child and the binding of reason such as washing and mosquito net separated, and cause each bar halliard synchronously not pulled out from the strand cable wheel, be easy to cause the halliard that loses tractive force loose and deviate from the flangeway of strand cable wheel or the strand cable that rewind back and take turns and " disorder cable " fault occurs like this, after " disorder cable " fault takes place, each bar halliard can be mutually or is tangled with the strand cable wheel and take off groove and lose correct connecting relation with the strand cable wheel, makes the elevating mechanism cisco unity malfunction.
Summary of the invention
Purpose one of the present invention provides mosquito net when landing drive unit and must not turn round, must not control and stop and the fast mosquito net elevating mechanism of sinking speed, so that make and improve service life, and convenient the use.
Whether purpose two of the present invention is on the basis of realizing goal of the invention one, provide drive unit and speed change gear thereof to have the stopping brake effect all to have the mosquito net elevating mechanism of the braking function of flexibility and reliability.
Purpose three of the present invention is the mosquito net elevating mechanisms that can not occur " disorder cable " fault under a kind of situation that wherein a few lose tractive force at halliard realizing providing on the basis of goal of the invention one.
For reaching above-mentioned goal of the invention one, total technical scheme of the present invention is, the component part of this mosquito net elevating mechanism comprises drive unit, strand cable wheel 5, the halliard 3 that equates with the necessary towing point quantity of account body 1, one end of each bar halliard 3 is connected with the strand cable wheel, the other end is connected with a towing point of account body 1, it is characterized in that, be connected with the clutch that separates the power connection when coupling power connects when 1 landing of account body when account body 1 rises between drive unit and the strand cable wheel 5, the power intake of this clutch connects with drive unit, clutch end connects with strand cable wheel 5, the effect of this clutch is, this Clutch Coupling makes the rotary power of drive unit output can pass to strand cable wheel 5 to draw account body 1 and rise when needing account body 1 to rise, and this clutch separation makes strand cable wheel 5 separate with connecting of drive unit and can rotate and then make account body 1 to drag the commentaries on classics strand cable to take turns 5 and land by deadweight alone when needing 1 landing of account body.Drive unit can be that motor 8 and speed change gear thereof also can be people and power switching device thereof, and its effect provides the power that rises mosquito net; The operation principle of total technical scheme of the present invention is, Clutch Coupling when account body 1 rises, the rotary power of drive unit passes to strand cable wheel 5 by clutch, strand cable is taken turns 5 rolling halliards 3 and is made it to draw 1 rising of account body, clutch does not still separate after the drive unit stall, if the power intake of clutch or drive unit have parking brake function then strand cable wheel 5 can not reverse mosquito net can not landed automatically; Clutch separation when needs account body 1 landing, strand cable wheel 5 separate with drive unit and can be rotated alone, and halliard 3 drags strand cable and takes turns 5 and reverse and make the mosquito net free-falling under the effect of mosquito net deadweight.
The concrete configuration scheme of described mosquito net elevating mechanism has multiple, the component part that its scheme one is this mosquito net elevating mechanism have a described drive unit, the described clutch of a cover, described strand cable wheel 5, with the described halliard 3 that the necessary towing point quantity of described account body 1 equates, every halliard 3 guides through a described pulley 4 and is connected with a towing point of account body 1 downwards.Its operation principle is, the rotary power of drive unit output passes to the strand cable wheel 5 that links with it by clutch when needing account body 1 to rise, strand cable wheel 5 is reeled each bar halliard 3 and is promoted account body 1, clutch does not still separate after the drive unit stall, if the power intake of clutch or drive unit have parking brake function then strand cable wheel 5 can not reverse mosquito net can not landed automatically; Clutch separates transmission device and strand cable wheel 5 strand cable wheel 5 can be rotated alone when needs account body 1 landing, and strand cable wheel 5 is dragged by the deadweight of account body 1 then disengages halliard 3,1 free-falling of account body.
For realizing purpose three of the present invention, the concrete configuration scheme two of described mosquito net elevating mechanism is, a described drive unit connects with a central gear 49, be connected with the tractor 50 that equates with the necessary towing point quantity of described account body 1 at the periphery of central gear 49, each tractor 50 is connected into by the described clutch of a cover, 5, described halliards 3 of a described strand cable wheel, and every halliard 3 is connected with a towing point of account body 1 downwards through described pulley 4 guiding.Its operation principle is, the rotary power of drive unit output passes to each clutch by central gear 49 and passes to the strand cable wheel 5 that links with it again when needing account body 1 to rise, and strand cable is taken turns 5 coiling halliards 3 and reached the purpose that promotes account body 1; Clutch separates transmission device and each strand cable wheel 5 each strand cable wheel 5 can be rotated alone when needs account body 1 landing, if certain bar halliard 3 has tractive force, the strand cable wheel 5 that then is attached thereto is dragged then is disengaged this halliard 3, if certain bar halliard 3 does not have tractive force, the strand cable that then is attached thereto wheel 5 can not rotate and this halliard 3 can not be disengaged, thereby having prevented that halliard 3 is excessive is laxly gone into strand cables wheel 5 and reach the purpose that prevents " disorder cable " fault by back-roll.
For realizing purpose three of the present invention, the concrete configuration mode three of described mosquito net elevating mechanism is, described drive unit is a motor 8, this mosquito net elevating mechanism includes the hauling machine 50a that equates with the towing point quantity of described account body 1 necessity, each hauling machine 50a is installed in the top of each towing point of account body 1 respectively, in each hauling machine 50a order be connected with a motor 8 ,-overlap described clutch, 5, described halliards 3 of a described strand cable wheel.Its operation principle and technical scheme of the present invention two are basic identical, no longer repeat.
Above-mentioned clutch can be with known various technical schemes, and as the clutch that uses on the almost car, the clutch control mode can be manual or electronic or surge or mode such as steam-operating.
For obtaining reliable transmission and manufacturing and controlling simple effect, the present invention has designed the technical scheme of multiple clutch especially: the technical scheme one of clutch is, this clutch pack contains order string and is contained in driven fluted disc 23 on the axis 24, active fluted disc 26 and clutch actuation means, driven fluted disc 23 can rotate on axis 24, initiatively fluted disc 26 can rotate on axis 24 and can be handled it by the clutch actuation means and move along axis 24 advance and retreat, driven fluted disc 23 and initiatively between the fluted disc 26 be two can the intermeshing annular flank of tooth, initiatively fluted disc 26 connects with drive unit as power intake, and driven fluted disc 23 connects with strand cable wheel 5 as clutch end.
Described clutch actuation means by the advance and retreat screw rod 39 of order string dress on axis 24 and be fixed on the housing 30 of clutch in forms every screw 42, initiatively coaxial the connecting firmly of fluted disc 26 and advance and retreat screw rod 39 also can be rotated on axis 24 and along being subjected to displacement every screw 42 in axis 24 screw-ins.Its operation principle is, when active fluted disc 26 is just changeing and driven fluted disc 23 be in released state, make every screw 42 during the screw rod 39 of then advancing and retreat can screw in initiatively fluted disc 26 forward with driven fluted disc 23 engagements; When active fluted disc 26 counter-rotating if be in engagement with driven fluted disc 23, fluted disc 26 is stepped back with driven fluted disc 23 separate, the forward and reverse by drive unit realize controlling Clutch Coupling and the purpose of separating;
Described clutch actuation means also can be made up of propelling spring 27, electromagnet 28 and the solenoid 29 of order string dress on axis 24, its operation principle is, when solenoid 29 no powers, propelling spring 27 is pushed active fluted disc 26 to driven fluted disc 23 and is meshed, torque can be transmitted to driven fluted disc 23 through active fluted disc 26, after solenoid 29 energisings, electromagnet 28 is inhaled active fluted disc 26 from driven fluted disc 23, and driven fluted disc 23 can freely rotate.
Described clutch actuation means also can be controlled with devices such as known steam-operating, hydraulic pressure.
For reaching above-mentioned goal of the invention two, on the basis of the technical scheme one of above-mentioned clutch, increase brake apparatus, this brake apparatus is at the housing 30 of clutch and braking tooth 31, back-moving spring 32, spacer pin 34 initiatively is installed between the fluted disc 26, braking tooth 31 is hinged on the housing 30, back-moving spring 32 is connected and hauls braking tooth 31 between braking tooth 31 and the housing 30 and remain on the position that is adjacent to spacer pin 34, protrudes into the between cog of the active fluted disc 26 that meshes with driven fluted disc 23 at this position braking tooth 31.Its operation principle is, no matter whether drive unit has the stopping brake effect, when active fluted disc 26 meshes with driven fluted disc 23, braking tooth 31 withstands on initiatively, and the between cog of fluted disc 26 limits its counter-rotating, the strand cable wheel 5 that makes driven fluted disc 23 and connect with it can not reverse and prevent the mosquito net landing, step back when separating with driven fluted disc 23 when active fluted disc 26, driven fluted disc 23 and the strand cable wheel 5 that links with it can rotate alone, and halliard 3 can drag 5 counter-rotatings of strand cable wheel under the effect of mosquito net deadweight.
In order to make braking more reliable, the teeth that contact between fluted disc 44 and the cut spring 43 at driven fluted disc 23 and in the middle of initiatively can establishing between the fluted disc 26, driven fluted disc 23 and active fluted disc 26 tooth of can squaring up.Its operation principle is, braking tooth 31 can be by the flank of tooth jack-up of middle fluted disc 44, so brake force is very big, when 26 counter-rotatings of active fluted disc, initiatively fluted disc 26 can produce thrusts promote in the middle of fluted disc 44 compression cut springs move to driven fluted disc 23 and fluted disc 26 can be reversed retreat, after initiatively fluted disc 26 left, cut spring pushed away the purpose that driven fluted disc 23 reaches separation to middle fluted disc 44 again; When active fluted disc 26 was just changeing, initiatively fluted disc 26 and middle fluted disc 44 can reach the transmission purpose with driven fluted disc 23 and 31 engagements of braking tooth again under the promotion of advance and retreat screw rod 39.
For realizing purpose one of the present invention, described drive unit is made up of bead cord 53, the sprocket wheel 59 that cooperates with bead cord 53; Described clutch comprises driving gear 58, idler gear 55, driven gear 54, one can be around the swing arm 60 of the axis swing of driving gear 58, pulley 56, another pulley 62, spring 61, driving gear 58 connects with sprocket wheel 59 as power intake, driven gear 54 connects with strand cable wheel 5 as clutch end, idler gear 55 and pulley 56 are coaxial but can independently separately rotate on its axle center, the axle center of idler gear 55 be fixed in the swing arm 60 and with driving gear 58 engagements, between swing arm 60 and support, is connected spring 61 make idler gear 55 simultaneously and driven gear 54 mesh; Braking tooth 57 withstands on the between cog of driving gear 59; Bead cord 53 is enclosed within sprocket wheel 59, and sagging naturally confession of sprocket wheel 59 bead cord 53 on one side operated, and another side walks around another pulley 62 in proper order and pulley 56 backs are sagging for operation usefulness.Its operation principle is, the operator leaves behind that the bead cord 53 on sprocket wheel 59 left sides drives that sprocket wheels 59 inhours are rotated and then the transmission by three gears drives strand cable wheel 5, after the operator decontrols bead cord 53, because driving gear 59 is braked tooth 57 and heads on and can not clockwise rotate, strand cable wheel 5 can not reverse and account body 1 can not be landed automatically; The operator pulls down the bead cord 53 on sprocket wheel 59 the right, because driving gear 59 is braked tooth 57 and heads on to reverse sprocket wheel 59 can not be clockwise rotated, bead cord 53 promptly produces bigger tension force and produce an active force that deviates from driven gear 54 on pulley 56, this active force extension spring 61 is swung swing arm 60 clockwise and is caused idler gear 55 to separate with driven gear 54, and the strand cable wheel 5 of driven gear 54 and connection with it at this moment can be hauled counter-rotating and account body 1 is landed automatically by halliard 3.
Technical scheme of the present invention is compared with the elevating mechanism in the background technology, and its advantage is:
1. the sinking speed of account body 1 and the speed of rise are had nothing to do, to electric lifting mechanism, if account body 1 rises the meeting automatic stopping, then the operator need not to wait for that the ascending motion of account body 1 finishes and can leave away, so the rise speed of elevating mechanism just can design lowlyer and the body 1 that guarantees to settle a debt or an account can land fast, thereby help reducing manufacturing cost and improve service life;
2. solved the shortcoming that shortcoming that the electric up-down mosquito net landing of background technology will manually stop or automatic stopping device can not adapt to the mosquito net of differing heights;
3. drive unit is not turned round in the process of account body 1 landing or shorten the duration of runs widely, also help reducing manufacturing cost and improve service life, help reducing the energy consumption of drive unit;
4. solved the shortcoming that lacks braking function or brake apparatus consumption power of motor and easy wear out failure of the electric lifting mechanism existence of background technology;
5. the ubiquitous halliard 3 of mosquito net elevating mechanism that has solved background technology must descend otherwise the easy shortcoming that " disorder cable " fault occurs synchronously, has significantly improved the reliability of elevating mechanism.
Description of drawings
Embodiment with accompanying drawing further specifies technical scheme of the present invention below.
Fig. 1 is the General Arrangement of concrete configuration mode one of the mosquito net elevating mechanism of Mosquito net with height adjustable function;
Fig. 2 .1 is the schematic diagram of embodiment one, and Fig. 2 .2 is A-A cutaway view of Fig. 2 .1, and Fig. 2 .3 is C-C cutaway view of Fig. 2 .1;
Fig. 3 is the circuit diagram of embodiment one;
Fig. 4 is the schematic diagram of embodiment two;
Fig. 9 is the General Arrangement of the mosquito net elevating mechanism of embodiment three, is the concrete configuration mode three of mosquito net elevating mechanism;
Fig. 5 .1 is the schematic diagram of the hauling machine 50a of embodiment three, and Fig. 5 .2 is A-A cutaway view of Fig. 5 .1, and Fig. 5 .3 is B-B cutaway view of Fig. 5 .1;
Fig. 6 is the circuit diagram that embodiment two uses the single phase ac reversible electric machine;
Fig. 7 is the floor map of embodiment four, is the concrete configuration mode two of mosquito net elevating mechanism;
Fig. 8 is the driving mechanism of embodiment four and the schematic diagram of tractor 50;
Figure 10 is the schematic diagram of embodiment five.
The specific embodiment
Embodiment one
Among Fig. 1, Mosquito net with height adjustable function mainly is made up of account body 1, support 2, halliard 3, pulley 4, strand cable wheel 5, pulley 4 is installed on the support 2 of each towing point top that is positioned at account body 1, strand cable wheel 5 is equipped with in arbitrary position in the support 2, the wheel rim of strand cable wheel 5 should have groove, bottom land has hole or the hook that links rope, and halliard 3 one ends are connected in the groove of strand cable wheel 5, and 4 guiding are connected with the towing point of account body 1 downwards the other end through pulley.
Fig. 2 .1, Fig. 2 .2, among Fig. 2 .3, the main parts size of elevating mechanism has halliard 3, pulley 4, strand cable wheel 5, motor 8, travel switch 9, the contact 10 of travel switch 9, driven gear 12, output gear 13, power transmission shaft 22, axis 24, gear 25, clutch and brake apparatus, the parts of forming this clutch comprise the order string and are contained in driven fluted disc 23 on the axis 24, fluted disc 26 and be contained in propelling spring 27 on the axis 24 initiatively by continuing string, electromagnet 28, the clutch actuation means that solenoid 29 is formed, that forms brake apparatus has a braking tooth 31, back-moving spring 32, hinge pin 33, spacer pin 34; Clutch among the figure is in released state, and output gear 13 also can be made of one with driven fluted disc 23 and omit power transmission shaft 22; Output gear 13 can rotate on axis 24 with power transmission shaft 22, driven fluted disc 23 coaxial connecting firmly also, driven fluted disc 23 and initiatively two faces between the fluted disc 26 have can the intermeshing ring-type flank of tooth, initiatively fluted disc 26 can rotate on axis 24 and along axis 24 displacements, its wheel rim has teeth, these teeth and gear 25 engagements; Braking tooth 31 be subjected to spacer pin 34 restriction and can be around its hinge pin 33 unidirectional swings, back-moving spring 32 hauls braking tooth 31 and remains on the position that is adjacent to spacer pin 34, protrudes into the between cog of fluted disc 26 initiatively and stops its counter-rotating at this position braking tooth 31.Its operation principle is, when solenoid 29 no powers, propelling spring 27 is pushed active fluted disc 26 to driven fluted disc 23 and is meshed, the torque of motor 8 can arrive gear 13 through active fluted disc 26, driven fluted disc 23 and power transmission shaft 22 from gear 25 and outwards export, after motor 8 outages, braking tooth 31 heads on the tooth of active fluted disc 26 and prevents its counter-rotating and prevent counter-rotating, after solenoid 29 energisings, electromagnet 28 is inhaled active fluted disc 26 from driven fluted disc 23 and braking tooth 31, and driven fluted disc 23 and gear 13 can freely rotate;
In Fig. 3, the moving together contact S of switch 11 makes the power-on switch that motor 8 is just changeing, be called the rise shelves for making things convenient for preface to state, off position T is called parking position switch, the flexible moving together contact J that returns is called the landing shelves, operate the shelves contact J that can land for convenience and be set to the flexible moving together contact of returning, travel switch 9 is connected on the prograde circuit of motor 8.
The operation principle of embodiment one is, change-over switch 11 rises the shelves conducting, motor 8 just changeing and the output gear 13 by clutch to driven gear 12 transmissions, 5 rotations synchronously of strand cable wheel with driven gear 12 coaxial connecting firmly, and then reach the purpose that promotes account body 1, contact 10 is run in 1 rise of account body opens circuit travel switch 9, motor 8 stalls, account body 1 rests on the position of parking: switch 11 landing shelves conductings, clutch separation then, the deadweight of account body 1 drive 5 counter-rotatings of strand cable wheel descends account body 1 fast, and account body 1 promptly stops after dropping to the end automatically, switch 11 is recovered back parking position switch T shelves, and clutch meshes again.
Embodiment two
Among Fig. 4, the parts of forming elevating mechanism have axis 24 and order string to be contained in driven fluted disc 23, active fluted disc 26, advance and retreat screw rod 39, the screw rod propelling spring 40 of axis 24, during housing 30 has every, in be separated with the screw 42 that cooperates with the screw rod 39 of advancing and retreat, braking tooth 31, back-moving spring 32, hinge pin 33, spacer pin 34 are arranged; Clutch is in released state among the figure, driven fluted disc 23 is taken turns 5 coaxial connecting firmly also with strand cable and can be rotated on axis 24, initiatively coaxial the connecting firmly of fluted disc 26 and advance and retreat screw rod 39 also can be rotated on axis 24 and along axis 24 displacements, driven fluted disc 23 towards active fluted disc 26 one side the ring-type flank of tooth is arranged, the steep one side of its flank of tooth one side is the gentle slope: initiatively fluted disc 26 towards the one side of driven fluted disc 23 have can with the ring-type flank of tooth of driven fluted disc 23 engagements, its wheel rim has teeth, these teeth and gear 25 engagements: there is thread the centre of advance and retreat screw rod 39, and two ends have length to be slightly larger than the smooth and round section of the screw length of screw 42; The operation principle of this clutch is, initiatively fluted disc 26 rotations of gear driven when motor 8 is just changeing, advance and retreat screw rod 39 transfers also screw in screw 42 and promote initiatively that fluted disc 26 moves to driven fluted disc 23 under the promotion of spring 40, last and driven fluted disc 23 engagements, at this moment the thread of screw rod 39 of advancing and retreat has screwed out screw 42 fully and has stopped moving, the moment of torsion of motor 8 passes to strand cable wheel 5 through active fluted disc 26 and driven fluted disc 23 from gear 25, during motor 8 stalls, braking tooth 31 withstands initiatively, and the tooth of fluted disc 26 can't reverse it, when motor 8 counter-rotatings, the thread of advance and retreat screw rod 39 oppositely screws in screw 42 and drives active fluted disc 26 and leaves driven fluted disc 23 until separating fully, promptly stop to move after the thread of advance and retreat screw rod 39 screws out screw 42, spring 40 is compressed.
Fig. 6 is the circuit diagram of present embodiment.
The operation principle of embodiment two is, change-over switch 11 rises shelves conductings, and motor 8 is just changeing and taking turns 5 transmissions by clutch to strand cable, and then reach the purpose that promotes account body 1, contact 10 is run in 1 rise of account body opens circuit travel switch 9, motor 8 stalls, and account body 1 rests on the position of parking; Switch 11 landing grade conductings, then motor 8 counter-rotatings, clutch separation, the deadweight of account body 1 drives 5 counter-rotatings of strand cable wheel descends account body 1 fast, after account body 1 begins to descend switch 11 is recovered back parking position switch, and account body 1 drops to lower dead center and promptly stops automatically.
Embodiment three
As shown in Figure 9, the mosquito net elevating mechanism includes the hauling machine 50a that equates with the towing point quantity of account body 1 necessity, each hauling machine 50a is installed in the top of each towing point of account body 1 respectively, each hauling machine 50a comprises a motor 8, a cover clutch, 5, halliards 3 of a strand cable wheel, be connected into according to Fig. 5 .1, Fig. 5 .2, Fig. 5 .3, its operation principle and embodiment four are basic identical, see also the operation principle of embodiment four.
Be driven counter-rotating smoothly and reduce braking tooth 31 and the abrasion of active fluted disc 26 in order to ensure braking effect and active fluted disc 26, the clutch of present embodiment is to obtain Fig. 5 .1 add middle fluted disc 44 and cut spring 43 on the basis of clutch shown in Figure 4 between driven fluted disc 23 and active fluted disc 26, Fig. 5 .2, clutch shown in Fig. 5 .3, Fig. 5 .1 is the schematic diagram that clutch is in released state, Fig. 5 .2 is the schematic diagram that clutch is in engagement, two faces between middle fluted disc 44 and the driven fluted disc 23 are all done the engageable annular flank of tooth, profile of tooth will be done to such an extent that steeper is beneficial to braking, the between cog of fluted disc 44 in the middle of braking tooth 31 withstands on; Two faces between middle fluted disc 44 and the active fluted disc 26 have all been done the intermeshing annular flank of tooth, and profile of tooth wants shallow and simultaneously steep one side is mild.The braking tooth 31 of Fig. 5 scheme can be by the flank of tooth jack-up of middle fluted disc 44, so brake force is very big, when motor 8 counter-rotatings, initiatively fluted disc 26 can produce thrusts promote in the middle of fluted disc 44 compression springs 43 move to driven fluted disc 23 and fluted disc 26 can be reversed retreat, after initiatively fluted disc 26 left, spring 43 pushed away driven fluted disc 23 to middle fluted disc 44 again and reaches the purpose of separating with braking tooth 31; When motor 8 was just changeing, initiatively fluted disc 26 and middle fluted disc 44 can reach transmission and braking purpose with driven fluted disc 23 and 31 engagements of braking tooth again under the promotion of advance and retreat screw rod 39.
Embodiment four
As shown in Figure 7, the drive unit of mosquito net elevating mechanism is formed sprocket wheel 48 and 49 coaxial connections of central gear by bead cord 47, the sprocket wheel 48 that cooperates with bead cord 47; Periphery at central gear 49 is connected with the tractor 50 that equates with the towing point quantity of account body 1 necessity, each tractor 50 is by a clutch, a strand cable wheel 5, article one, halliard 3 is connected into: shown in Figure 8, the power intake of clutch is made up of gear 51 and spline 52, spline 52 upper ends and 51 coaxial connections of gear, the axle center hole of advance and retreat screw rod 39 is inserted in spline 52 lower ends, this hole is a keyhole key connecting with it, the axle center hole that the hypomere of advance and retreat screw rod 39 passes fluted disc 26 initiatively with it tight fit and pass in the middle of the axle center hole loose fit with it of fluted disc 44, there is the jump ring 39a of a diameter greater than the axle center hole of middle fluted disc 44 lower end of advance and retreat screw rod 39.Its operation principle is, pulling bead cord 47 is rotated in the forward sprocket wheel 48, give the gear 51 of each tractor 50 and spline 52 that links with it and advance and retreat screw rod 39 transmission of power by central gear 49, the thread of advance and retreat screw rod 39 screws in screw 42 and initiatively fluted disc 26 and middle fluted disc 44 is pushed to driven fluted disc 23 and coupling drives the strand cable wheel 5 that links with it, and strand cable is taken turns 5 coiling halliards 3 and reached the purpose that promotes account body 1; Pulling bead cord 47 makes sprocket wheel 48 reverse rotations, advance and retreat screw rod 39 counter-rotatings of each tractor 50 screw in screw 42 and move up, jump ring 39a is being with middle fluted disc 44 and is moving up and separate with driven fluted disc 23, each strand cable wheel 5 can be rotated alone, if certain bar halliard 3 has tractive force, the strand cable wheel 5 that then is attached thereto is dragged then is disengaged this halliard 3, if certain bar halliard 3 does not have tractive force, the strand cable that then is attached thereto wheel 5 can not rotate and this halliard 3 can not be disengaged, and has prevented from that halliard 3 is excessive laxly to be gone into strand cables wheel 5 and reach the purpose that prevents " disorder cable " fault by back-roll.
The drive unit of present embodiment also can substitute with motor.
Embodiment five
As shown in figure 10, the drive unit of elevating mechanism is by bead cord 53, the sprocket wheel 59 that cooperates with bead cord 53 is formed, clutch is by driving gear 58, idler gear 55, driven gear 54, one can be around the swing arm 60 of the axis swing of driving gear 58, pulley 56, pulley 62, spring 61 is formed, driving gear 58 is as power intake and 59 coaxial connections of sprocket wheel, driven gear 54 took turns for 5 coaxial connections as clutch end and strand cable, idler gear 55 and pulley 56 are coaxial but can independently separately rotate on its axle center, the axle center of idler gear 55 be fixed in the swing arm 60 and with driving gear 58 engagements, between swing arm 60 and support 2, is connected spring 61 55 whiles of idler gear and driven gear 54 is meshed; Brake apparatus is a braking tooth 57, and back-moving spring 32 is replaced by the deadweight of braking tooth, and the between cog that braking tooth 57 withstands on driving gear 58 makes it can only be to counter rotation; Bead cord 53 is made the ring of sealing, and bead cord 53 is enclosed within on the sprocket wheel 59, and the bead cord 53 on figure middle sprocket 59 left sides is sagging naturally for operating, and another side elder generation inhour is walked around pulley 62 and walked around the sagging operation usefulness that supplies in pulley 56 backs more clockwise.Its operation principle is, the operator leaves behind that the bead cord 53 on sprocket wheel 59 left sides drives that sprocket wheels 59 inhours are rotated and then the transmission by three gears drives strand cable wheel 5, after the operator decontrols bead cord 53, because driving gear 59 is braked tooth 57 and heads on and can not clockwise rotate, strand cable wheel 5 can not reverse and account body 1 can not be landed automatically; The operator pulls down the bead cord 53 on sprocket wheel 59 the right, because driving gear 59 is braked tooth 57 and heads on to reverse sprocket wheel 59 can not be clockwise rotated, bead cord 53 promptly produces bigger tension force and produce an active force that deviates from driven gear 54 on pulley 56, this active force extension spring 61 is swung swing arm 60 clockwise and is caused idler gear 55 to separate with driven gear 54, and the strand cable wheel 5 of driven gear 54 and connection with it at this moment can be hauled counter-rotating and account body 1 is landed automatically by halliard 3.
Present embodiment also can connect a sprocket wheel with motor and make drive unit.
Claims (12)
1. the mosquito net elevating mechanism that clutch is arranged, comprise the halliard (3) that drive unit, strand cable are taken turns (5), equated with the towing point quantity of account body (1) necessity, one end of each bar halliard (3) is connected with strand cable wheel (5), the other end is connected with a towing point of account body (1), it is characterized in that, be connected with between drive unit and strand cable wheel (5) that coupling power connects the clutch that separates the power connection when account body (1) lands when account body (1) rises, the power intake of this clutch connects with drive unit, and clutch end connects with strand cable wheel (5).
2. the mosquito net elevating mechanism that clutch is arranged according to claim 1, it is characterized in that, this mosquito net elevating mechanism has a described drive unit, the described clutch of a cover, a described halliard (3) and the pulley (4) that described strand cable is taken turns (5), equated with the towing point quantity of described account body (1) necessity, and every halliard (3) guides through a pulley (4) and is connected with a towing point of account body (1) downwards.
3. the mosquito net elevating mechanism that clutch is arranged according to claim 1 is characterized in that, a described drive unit connects with a central gear (49); Periphery at central gear (49) is connected with the tractor (50) that equates with the towing point quantity of described account body (1) necessity, each tractor (50) is connected into by the described clutch of a cover, a described strand cable wheel (5), a described halliard (3), and every halliard (3) is connected with a towing point of account body (1) downwards through a pulley (4) guiding.
4. the mosquito net elevating mechanism that clutch is arranged according to claim 1, it is characterized in that, described drive unit is motor (8), this mosquito net elevating mechanism includes the hauling machine (50a) that equates with the towing point quantity of described account body (1) necessity, each hauling machine (50a) is installed in the top of each towing point of account body (1) respectively, and each hauling machine (50a) has been linked in sequence, and a motor (8), overlaps described clutch, a described strand cable is taken turns (5), a described halliard (3).
5. according to claim 1 or 2 or the 3 or 4 described mosquito net elevating mechanisms that clutch is arranged, it is characterized in that, described clutch pack contains order string and is contained in driven fluted disc (23) on the axis (24), active fluted disc (26) and clutch actuation means, driven fluted disc (23) can be gone up at axis (24) and rotate, initiatively fluted disc (26) can be gone up at axis (24) and rotate and can be handled it by the clutch actuation means and move along axis (24) advance and retreat, driven fluted disc (23) and initiatively between the fluted disc (26) be two can the intermeshing annular flank of tooth, initiatively fluted disc (26) connects with drive unit as power intake, and driven fluted disc (23) connects with strand cable wheel (5) as clutch end.
6. the mosquito net elevating mechanism that clutch is arranged according to claim 5, it is characterized in that, described clutch actuation means by the advance and retreat screw rod (39) of going up order string dress at axis (24) and be fixed on the housing (30) of clutch in forms every screw (42), initiatively fluted disc (26) and advance and retreat screw rods (39) are coaxial connects firmly and can be in upward rotation and along being subjected to displacement every screw (42) in axis (24) screw-in of axis (24).
7. the mosquito net elevating mechanism that clutch is arranged according to claim 5 is characterized in that, described clutch actuation means is made up of spring (27), electromagnet (28) and the solenoid (29) of going up order string dress at axis (24).
8. the mosquito net elevating mechanism that clutch is arranged according to claim 5, it is characterized in that, braking tooth (31), back-moving spring (32) and spacer pin (34) are housed between housing of clutch (30) and the active fluted disc (26), braking tooth (31) is hinged on the housing (30), back-moving spring (32) is connected and hauls braking tooth (31) between braking tooth (31) and the housing (30) and remain on the position that is adjacent to spacer pin (34), protrudes into the between cog of the active fluted disc (26) that meshes with driven fluted disc (23) at this position braking tooth (31).
9. the mosquito net elevating mechanism that clutch is arranged according to claim 6, it is characterized in that, braking tooth (31), back-moving spring (32) and spacer pin (34) are housed between housing of clutch (30) and the active fluted disc (26), braking tooth (31) is hinged on the housing (30), back-moving spring (32) is connected and hauls braking tooth (31) between braking tooth (31) and the housing (30) and remain on the position that is adjacent to spacer pin (34), protrudes into the between cog of the active fluted disc (26) that meshes with driven fluted disc (23) at this position braking tooth (31).
10. the mosquito net elevating mechanism that clutch is arranged according to claim 7, it is characterized in that, braking tooth (31), back-moving spring (32) and spacer pin (34) are housed between housing of clutch (30) and the active fluted disc (26), braking tooth (31) is hinged on the housing (30), back-moving spring (32) is connected and hauls braking tooth (31) between braking tooth (31) and the housing (30) and remain on the position that is adjacent to spacer pin (34), protrudes into the between cog of the active fluted disc (26) that meshes with driven fluted disc (23) at this position braking tooth (31).
11. the mosquito net elevating mechanism that clutch is arranged according to claim 8 is characterized in that, between driven fluted disc (23) and active fluted disc (26) middle fluted disc (44) and cut spring (43) is arranged.
12. the mosquito net elevating mechanism that clutch is arranged according to claim 1 is characterized in that, described drive unit is made up of bead cord (53), the sprocket wheel (59) that cooperates with bead cord (53); Described clutch comprises has driving gear (58), idler gear (55), driven gear (54), one can be around the swing arm (60) of the axis swing of driving gear (58), pulley (56), another pulley (62), spring (61), driving gear (58) connects with sprocket wheel (59) as power intake, driven gear (54) connects with strand cable wheel (5) as clutch end, idler gear (55) is coaxial but can be separately independently rotate on its axle center with pulley (56), the axle center of idler gear (55) be fixed on that swing arm (60) is gone up and with driving gear (58) engagement, between swing arm (60) and support, be connected spring (61) idler gear (55) meshed with driven gear (54) simultaneously; Braking tooth (57) withstands on the between cog of driving gear (59); Bead cord (53) is enclosed within sprocket wheel (59), and sagging naturally confession of sprocket wheel (59) bead cord (53) on one side operated, and another side walks around another pulley (62) in proper order and pulley (56) back is sagging for operation usefulness.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB021474850A CN100486488C (en) | 2002-11-04 | 2002-11-04 | Mosquito net elevator with clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB021474850A CN100486488C (en) | 2002-11-04 | 2002-11-04 | Mosquito net elevator with clutch |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1416761A CN1416761A (en) | 2003-05-14 |
CN100486488C true CN100486488C (en) | 2009-05-13 |
Family
ID=4751202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021474850A Expired - Fee Related CN100486488C (en) | 2002-11-04 | 2002-11-04 | Mosquito net elevator with clutch |
Country Status (1)
Country | Link |
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CN (1) | CN100486488C (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100444766C (en) * | 2004-06-15 | 2008-12-24 | 邱林 | Tractor for liftable mosquito net |
CN104444885B (en) * | 2014-12-15 | 2017-02-01 | 冯耀明 | Balanced lifting device |
CN106419297B (en) * | 2016-11-15 | 2018-12-21 | 冯耀明 | A kind of electric hang lifter |
CN106361058B (en) * | 2016-11-15 | 2019-02-19 | 冯耀明 | A kind of hybrid power mosquito net balance lifting device |
CN106419298B (en) * | 2016-11-15 | 2018-12-21 | 冯耀明 | A kind of automatically controlled self-balancing lifter |
CN106395657B (en) * | 2016-11-15 | 2018-11-20 | 冯耀明 | A kind of self-positioning lifting device |
CN106343818B (en) * | 2016-11-15 | 2018-11-13 | 冯耀明 | A kind of mosquito net lifting gear to hover |
CN106365067B (en) * | 2016-11-15 | 2018-08-14 | 冯耀明 | A kind of ring body formula mosquito net lifter |
CN106348191B (en) * | 2016-11-15 | 2018-08-14 | 冯耀明 | A kind of compact mosquito net lifter |
CN106419296B (en) * | 2016-11-15 | 2018-11-13 | 冯耀明 | A kind of primary and secondary balance lifting device |
CN106974754A (en) * | 2017-03-13 | 2017-07-25 | 江苏德丰医疗设备有限公司 | A kind of haulage gear |
-
2002
- 2002-11-04 CN CNB021474850A patent/CN100486488C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN1416761A (en) | 2003-05-14 |
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