CN106343818A - Bed net lifting device capable of suspending - Google Patents

Abstract

The invention relates to the technical field of bed net suspension adjustment devices, in particular to a bed net lifting device capable of suspending, which comprises a rack and a sub-wheel assembly, wherein a primary rope wheel is arranged in the rack; locating bearings for supporting the primary rope wheel to rotate horizontally are arranged on a plurality of stand poles; a clutch plate is arranged between the primary rope wheel and a top plate, and can move up and down along the stand poles on the periphery; a plurality of support springs are arranged between the clutch plate and the top plate; an upper pressing plate matched with the primary rope wheel is arranged on the clutch plate; a second one-way bearing is connected between the upper pressing plate and the clutch plate; a central shaft system capable of driving the primary rope wheel to forward rotate and the clutch plate to move up and down is arranged in the rack; a linkage plate in transmission connection with the sub-wheel assembly is arranged on the central shaft system. According to the bed net lifting device capable of suspending provided by the invention, through the organic combination of the structures, the lifting adjustment and the any-height suspension of a bed net and a veiling support are realized, a user can flexibly use the bed net conveniently, the convenience in disassembly and cleaning and the use safety are improved, the overall structure is simple and stable, and the application range is wide.

Description

A kind of mosquito net lowering or hoisting gear hovering

Technical field

The present invention relates to mosquito net hangs adjusting means technical field, refer specifically to a kind of mosquito net lowering or hoisting gear hovering.

Background technology

Mosquito net is that we spend the common articles for use of hot summer, and it can be effectively prevented biting of mosquito.With respect to killing Worm agent and mosquito incense, the use of mosquito net has the advantages that environmental protection, health and safety, low-carbon (LC) low cost.Exist various on the market The mosquito net of type, such as traditional mosquito net, it adopts Corner Strapped point hang, the and for example mosquito net of mobile edition, and it passes through can Folding frame is supported, and both mosquito nets all have respective pluses and minuses in use, and structure is simple but operation is inconvenient.For having Effect improves the Discussing Convenience of Usage of bednets, and the elevating mechanism of various mosquito nets is operated and given birth to, and is very easy to mosquito net in daily Use, the such as Chinese invention patent of publication number cn104444885a, it discloses a kind of balance lifting device, including support, Gu Fixing axle on support, described fixing axle top is provided with drive mechanism, and fixing axle bottom is provided with line wheel assembly, described driving It is provided with clutch, described line wheel assembly includes some twisted rope disks, described twisted rope disk and clutch between mechanism and line wheel assembly It is provided with overload separation mechanism, it can be effectively realized mosquito net balance lifting, the function such as parked, automatic adjustable balance between structure.

But due to, in new Decoration Design at present, in order to cater to the plank bed structure of modern money, often mosquito net hitch point being preset On the ceiling, the dismounting that this results in mosquito net needs the auxiliary of ladder, improves the danger of demolition and maintenance；And some high-end mosquitos The special suspension structure that account adopts, causes unprofessional user to produce larger dismounting difficult, even if professional carries out safeguarding The inefficacy of mechanism can be caused and scrap.Therefore, existing mosquito net hitch has yet to be improved and developed

Content of the invention

Present invention aims to the defect of prior art and deficiency, provide a kind of compact conformation, easy to operate The mosquito net lowering or hoisting gear that can hover.

To achieve these goals, the present invention employs the following technical solutions:

A kind of mosquito net lowering or hoisting gear hovering of the present invention, including frame and sub- wheel assembly, described frame includes top board And base plate, it is fixedly connected by some vertical rods between top board and base plate；It is provided with bus wheel, some vertical rods are provided with described frame The positioning bearing that supporting bus wheel horizontally rotates, is provided with clutch discs between bus wheel and top board, clutch discs can be along the vertical rod of surrounding Move up and down and between clutch discs and top board, be provided with some support springs；Described clutch discs are provided with the upper pressure with the cooperation of bus wheel Disk, is connected with the second unilateral bearing between upper platen and clutch discs；It is provided with described frame and bus wheel can be driven to rotate forward, can drive The centre shaft that clutch discs move up and down, and centre shaft is provided with the linkage disk being in transmission connection with sub- wheel assembly.

According to above scheme, described bus wheel is equipped with cylinder mother's axle, the upper end of cylinder mother's axle be arranged in platen and On second unilateral bearing, and cylinder mother's axle upper end is fixedly connected with the rotor of upper platen and the second unilateral bearing respectively, and cylinder is female The lower end of axle can be moved up and down with it with centre shaft cooperation.

According to above scheme, between described bus wheel and centre shaft, it is provided with the lower tray with the cooperation of upper platen, lower tray Can be connected to horizontally rotating on positioning bearing, the center of rotation of described lower tray is provided with through hole, and the lower end of cylinder mother's axle is worn In the through hole of lower tray.

According to above scheme, between the through hole of described lower tray and cylinder mother's axle, it is provided with connecting key.

According to above scheme, between described upper platen and bus wheel, between lower tray and bus wheel, it is equipped with silica gel friction Piece.

According to above scheme, described centre shaft includes central shaft, and central shaft is vertically rotatably arranged in frame, center The upper end of axle is provided with the linkage structure with clutch discs cooperation；Described central shaft is provided with the sliding tooth with the cooperation transmission of bus wheel Wheel, and between driving gear and central shaft, it is connected with the first unilateral bearing；Described base plate is provided with to drive and moves down on central shaft Dynamic clutch lowering or hoisting gear.

According to above scheme, the upper end of described central shaft is arranged in cylinder mother's axle and is rotating with it, gear Structure includes stroke reed, and stroke reed is located between cylinder mother's axle lower surface and driving gear, and stroke reed is solid with central shaft Fixed connection.

According to above scheme, described linkage disk can horizontally rotate between base plate and driving gear, in driving gear It is provided with the transmission component respectively with lower tray, the cooperation of linkage disk.

According to above scheme, described transmission component include some along same circumference equi-angularly space setting driving levers, some groups Bar is vertically arranged in driving gear；The bottom surface of described lower tray is provided with female basin transmission tip, and the upper end of some driving levers is equipped with It is driven the one-way driving mechanism of tip cooperation with female basin, the upper surface of described linkage disk is provided with the linkage with the cooperation of driving lever lower end The tip.

According to above scheme, described one-way driving mechanism includes mainshaft gear linkage basin, mainshaft gear linkage basin and driving Gear is fixedly connected, and is provided with the second fixing bearing between mainshaft gear linkage basin and central shaft；Outside described mainshaft gear linkage basin Edge face is provided with some open slots, and some open slots, along the periphery equi-spaced apart setting of mainshaft gear linkage basin, set in open slot There is the movable blocking arm of eccentric rotation, the upper end of some driving levers corresponds and is arranged in open slot, and driving lever and movable blocking arm Turning end hinged, the eccentric end of movable blocking arm and female basin transmission tip cooperation transmission, and the eccentric end of movable blocking arm and sliding tooth It is provided with reduction torsion spring between wheel.

Present invention has the beneficial effect that present configuration is rationally, driving gear in reversing mode by central shaft coordinate from Conjunction lowering or hoisting gear is limited in low level working face with switch operating plane, under normal conditions centre shaft, now bus wheel and son Wheel assembly is in self-locking poised state；

Driving gear rotates forward in different working faces has Three models:

First, the driving gear under normality is in low level work surface, and driving lever lower end is in transmission connection with the linkage tip on linkage disk, female Line wheel realizes reversion locking by one-way locking device；Driving gear drives sub-line wheel to rotate forward makes the account body of mosquito net rise；Account body After rising to desired height, the external force in driving gear cancels, the reversal effect power warp that sub-line wheel is produced by account body action of gravity Central shaft, gearshift cross bar and guide gear are conducted to by driving lever, driving gear and the first unilateral bearing；Due under positioning stage clip Pressure acts on, and has the frictional resistance of horizontal direction between the low level orbital plane of gearshift cross bar and guiding ring gear, reversal effect power with Frictional resistance reaches poised state thus realizing the self-locking of sub-line wheel.

Second, driving gear reversion drives the gearshift cross bar on central shaft to enter low level and works towards high-order work surface transition During face, driving gear and driving lever rise therewith, and driving lever lower end is separated with sub-line wheel linkage disk, and sub-line wheel can be in the work of account heavy sensation of the body power With lower reversion so that account body declines；The then reversion pulling force in revocation driving gear, gearshift cross bar is under positioning stage clip effect Automatically slip back to low level work surface under, driving gear and driving lever thereon are re-established with linkage disk and be in transmission connection, so that sub Line wheel is relocked.

3rd, when driving gear is switched to high-order work surface, the stroke reed on central shaft promotes cylinder mother's axle to rise, and makes Upper platen rises along vertical rod with clutch discs, upper platen, separates thus one-way locking device discharges bus between bus wheel, lower tray Wheel makes it freely rotatable in cylinder mother's axle, so that veiling, support and mosquito net is integrally fallen under action of gravity.

4th, during driving gear switching middle position work surface, stroke reed release cylinder mother's axle makes clutch discs decline, and supports bullet Spring drives upper platen downward actuation and lower tray cooperation clamping bus wheel, and now bus wheel is limited not by the second unilateral bearing Can reversion；And the movable blocking arm of driving lever upper end and female basin are driven tip engaged transmission, now driving gear rotates forward and can drive bus wheel And then lift veiling support to desired height；Now cancel external pull, cylinder mother's axle passes through unidirectional turn of the second unilateral bearing Dynamic property makes female wheel assembly return to self-locking state.

The combination by said structure for the present invention, is realized mosquito net and is stayed with the lift adjustment of veiling support and arbitrary height Stop, facilitate the flexible use to mosquito net for the user, improve disassembly, cleaning convenience and safety in utilization, terminal with compact integral structure is stable, Applied range.

Brief description

Fig. 1 is the whole interior structural representation of the present invention；

Fig. 2 is a portion mplifying structure schematic diagram in Fig. 1；

Fig. 3 is the transmission component part planar structural representation of the present invention；

Fig. 4 is guiding ring gear and the safety pin portion deployed configuration schematic diagram of the present invention.

In figure:

1st, frame；2nd, central shaft；4th, sub- wheel assembly；5th, driving gear；6th, self-locking device；7th, transmission component；11st, top board；12nd, bottom Plate；13rd, vertical rod；14th, fixed disk；15th, back-moving spring；21st, clutch lowering or hoisting gear；22nd, guide ring gear；23rd, gearshift cross bar；24、 Positioning stage clip；25th, force fluctuating orbit；26th, safety plug；27th, parking switch；28th, positioning pressuring plate；29th, stroke reed；31st, female Line wheel；32nd, cylinder mother's axle；33rd, upper platen；34th, position bearing；35th, female basin transmission tip；36th, driving key；41st, the first fixing axle Hold；42nd, circle bobbin shaft；43rd, sub-line wheel；44th, linkage disk；45th, link the tip；51st, the first unilateral bearing；52nd, mainshaft gear linkage Basin；53rd, the second fixing bearing；54th, open slot；55th, tooth sector；56th, power pelletron；57th, bead back-up ring；61st, second is unidirectional Bearing；62nd, clutch discs；63rd, support spring；64th, lower tray；65th, silica gel friction plate；71st, driving lever；72nd, movable blocking arm；73rd, multiple Position torsion spring.

Specific embodiment

With embodiment, technical scheme is illustrated below in conjunction with the accompanying drawings.

As Figure 1-4, a kind of mosquito net lowering or hoisting gear hovering of the present invention, including frame 1 and sub- wheel assembly 4, described frame 1 includes top board 11 and base plate 12, is fixedly connected by some vertical rods 13 between top board 11 and base plate 12, sub- wheel group Part 4 be may be provided at the inside of frame 1 or is set up in parallel with frame 1, and sub- wheel assembly 4 is used for connecting the opening end of mosquito net；Described It is provided with bus wheel 31, the pull rope on bus wheel 31 connects the veiling support of mosquito net, thus realizing overall the proposing of mosquito net in frame 1 Rise suspension, entire lowering carries out demolition and maintenance to it；Some vertical rods 13 are provided with the locating shaft that supporting bus wheel 31 horizontally rotates Hold 34, between bus wheel 31 and top board 11, be provided with clutch discs 62, clutch discs 62 can move up and down and clutch along the vertical rod 13 of surrounding It is provided with some support springs 63 between disk 62 and top board 11；Described clutch discs 62 are provided with the upper platen with bus wheel 31 cooperation 33, it is connected with the second unilateral bearing 61 between upper platen 33 and clutch discs 62, the second unilateral bearing 61 is unilateral bearing；Described from Conjunction disk 62, support spring 63, the second unilateral bearing 61 one form the self-locking device 6 of bus wheel 31, and self-locking device 6 is by upper pressure Disk 33 forms reversion locking and rotates forward transmission cooperation to bus wheel 31；Clutch discs 62 pass through the effect of support spring 63 under normal conditions To upper platen 33 apply pressure, make to produce enough frictional force between platen 33 and bus wheel 31, due to upper platen 33 from Only can rotate forward on conjunction disk 62, so that bus wheel 31 can not be inverted and then realize the parked purpose of veiling support；Set in described frame 1 Have and bus wheel 31 can be driven to rotate forward, the centre shaft that clutch discs 62 move up and down can be driven, and centre shaft is provided with and son wheel The linkage disk 44 that assembly 4 is in transmission connection；Described centre shaft passes through to move up and down its mode of operation of change, to drive bus respectively Wheel 31 or linkage disk 44, the centre shaft under normality is in lower floor's mode of operation, protects all the time between centre shaft and linkage disk 44 Hold and be in transmission connection, so that sub- wheel assembly 4 remains stationary state；Mover wheel assembly 4 lifting mosquito then can be carried when centre shaft rotates forward The height of account, realizes parked after rising to certain height；When centre shaft is switched to upper strata mode of operation, centre shaft Promote clutch discs 62 rising to open platen 33 to be connected with the frictional drive of bus wheel 31, bus wheel 31 passes through positioning bearing 34 can Freely inverting, so that it is declined thus discharging veiling support；And bus can be driven when centre shaft is switched to middle level mode of operation Wheel 31 rotating forward, and then after making veiling support rise to certain altitude, parked by realizing from lock set on bus wheel 31；This Bright in the effective cooperation by above-mentioned each mechanism, thus realizing staying under veiling support and the lifting and arbitrary height respectively of mosquito net Stop.

Cylinder mother's axle 32 is equipped with described bus wheel 31, the upper end of cylinder mother's axle 32 is arranged in platen 33 and the second list To on bearing 63, and cylinder mother's axle 32 upper end is fixedly connected with the rotor of upper platen 33 and the second unilateral bearing 63 respectively, cylinder The lower end of mother's axle 32 can be moved up and down with it with centre shaft cooperation；It is unidirectional that described upper platen 33 passes through cylinder mother's axle 32 and second Bearing 63 is fixed in clutch discs 62, and cylinder mother's axle 32 is rotating with bus wheel 31, thus bus wheel 31 is played determining Heart positioning action, it is to avoid bus wheel 31 departs from positioning bearing 34 in the presence of pull rope；The lower end of described cylinder mother's axle 32 is joined Close the up and down action of centre shaft, make clutch discs 62 rise the frictional drive opened between platen 33 and bus wheel 31 therewith and join Close, after centre shaft declines, clutch discs 62 can realize locking to bus wheel 31 in the presence of support spring 63 again.

It is provided with the lower tray 64 with the cooperation of upper platen 33, lower tray 64 can level between described bus wheel 31 and centre shaft Rotationally it is connected on positioning bearing 34, the center of rotation of described lower tray 64 is provided with through hole, and the lower end of cylinder mother's axle 32 is worn In the through hole of lower tray 64；Described lower tray 62 is passed through positioning bearing 34 and can be horizontally rotated in frame 1, support spring 63 Clutch discs 62 and upper platen 33 is promoted to push, cooperation lower tray 64 clamping bus wheel 31 is in that one links with it, so that bus Wheel 31 is in reversion self-locking state in frame 1 and realizes the parked of veiling support, or drives lower tray 64 He by centre shaft Bus wheel 31 rotates forward lifting veiling support.

Be provided with connecting key 36 between the through hole of described lower tray 64 and cylinder mother's axle 32, lower tray 64 pass through connecting key 36 with Cylinder mother's axle 32 integrally horizontally rotates, when centre shaft drives lower tray 64 to rotate forward, upper platen 33 and lower tray 64 respectively with mother Line wheel 31 produces frictional drive cooperation, thus the transmission stability between centre shaft and bus wheel 31 can be improved, described cylinder Mother's axle 32 can be up and down in the through hole of lower tray 64, when centre shaft moves up, promote cylinder mother's axle 32 can make from Conjunction disk 62 rises the reversion locking opening self-locking device 6 to bus wheel 31.

Between described upper platen 33 and bus wheel 31, between lower tray 64 and bus wheel 31, it is equipped with silica gel friction plate 65； Described silica gel friction plate 65 can improve the upper platen 33 and lower tray 64 frictional drive effect to bus wheel 31, and veiling support, When connection between pull rope and bus wheel 31 is broken down, silica gel friction plate 65 can avoid bus wheel 31, upper platen 33, under Rigidity between pallet 64 is skidded and is killed phenomenon, improves the functional reliability of integrated model.

Described centre shaft includes central shaft 2, and central shaft 2 is vertically rotatably arranged in frame 1, the upper end of central shaft 2 It is provided with the linkage structure with clutch discs 62 cooperation；Described central shaft 2 is provided with the driving gear 5 with bus wheel 31 cooperation transmission, It is connected with the first unilateral bearing 51, base plate is provided with and central shaft 2 can be driven to move up and down between driving gear 5 and central shaft 2 Clutch lowering or hoisting gear 21；Described first unilateral bearing 51 is unilateral bearing, can drive when driving gear 5 rotates forward bus wheel 31 or The sub- wheel assembly of person 4 rotates forward, and central shaft 2 one can be driven to invert, thus coordinating clutch lowering or hoisting gear 21 when driving gear 5 inverts Driving gear 5 is made to move up and down switching working mode.

The upper end of described central shaft 2 is arranged in cylinder mother's axle 32 and is rotating with it, and link gear includes stroke Reed 29, stroke reed 29 is between cylinder mother's axle 32 lower surface and driving gear 5, and stroke reed 29 is solid with central shaft 2 Fixed connection；Described stroke reed 29 is used for driving cylinder mother's axle 32 to rise, and stroke reed 29 is in the driving of clutch lowering or hoisting gear 21 Descend and central shaft 2 one linkage from top to bottom, so that the clamping that upper platen 33 and lower tray 64 release to bus wheel 31 is linked, Veiling support is made freely to decline under gravity.

Currently preferred clutch lowering or hoisting gear 21 includes the guiding ring gear 22 being fixedly arranged on base plate 12, under central shaft 2 End is provided with the gearshift cross bar 23 that can horizontally rotate along guiding ring gear 22, is provided with and shifts gears between the upper end of central shaft 2 and top board 11 The positioning stage clip 24 of cross bar 23 cooperation；Described guiding ring gear 22 is provided with two groups of end to end pressure fluctuating orbits 25, forces Fluctuating orbit 25 includes low level work surface, high-order work surface and the middle position work surface setting gradually, and low level work surface, high-order work Make to be respectively connected with smooth transition surface between face and middle position work surface；The two ends of described gearshift cross bar 23 are arranged in corresponding strong respectively In fluctuating orbit 25 processed, and then so that gearshift cross bar 23 can be moved up and down along pressure fluctuating orbit 25 when horizontally rotating；Described from The effect closing lowering or hoisting gear 21 is to promote central shaft 2 and driving gear thereon 5 to move up and down, and positioning stage clip 24 is to gearshift Cross bar 23 applies downward active force so as to produce the frictional resistance of horizontal direction with guiding ring gear 22, and this frictional resistance exists Gearshift cross bar 23 is made to keep stable, so that centre shaft is in self-locking poised state on forcing fluctuating orbit 25 under normality； Described driving gear 5 reversion drives central shaft 2 to rotate, and gearshift cross bar 23 is different along forcing fluctuating orbit 25 up and down action to proceed to There are Three models in the different working face of work surface, central shaft 2 and driving gear 5 correspondence, during low level work surface, driving gear 5 are in transmission connection with sub- wheel assembly 4, self-locking device 6 and clutch lowering or hoisting gear 21 realize respectively bus wheel 31 and sub- wheel assembly 4 from Lock balance；During high-order work surface, stroke reed 29 drives self-locking device 6 to open locking, so that bus wheel 31 can be freely inverted, simultaneously Sub- wheel assembly 4 is in state free to rotate；During middle position work surface, stroke reed 29 fall after rise then self-locking device 6 by bus wheel 31 Locking one links, and driving gear 5 drives bus wheel 31 to rotate forward and realizes lifting, and driving gear 5 stops operating then self-locking device 6 The reversion to bus wheel 31 is kept to limit, thus realizing the parked purpose of veiling support.

Described linkage disk 44 can horizontally rotate between base plate and driving gear 5, driving gear 5 be provided with respectively with Lower tray 64, the transmission component 7 of linkage disk 44 cooperation；Described transmission component 7 with driving gear 5 up and down action respectively with subiculum Disk 64 and linkage disk 44 are in transmission connection, and are to be linked by being driven chain formation one between linkage disk 4 and sub- wheel assembly 4, thus Driving gear 5 can rotate with it when rotating forward makes mosquito net open.

Described transmission component 7 includes some driving levers 71 along the setting of same circumference equi-angularly space, and some driving levers 71 are vertically worn In driving gear 5；The bottom surface of described lower tray 64 is provided with the female basin transmission tip 35, the upper end of some driving levers 71 be equipped with Female basin is driven the one-way driving mechanism of the tip 35 cooperation, and the upper surface of described linkage disk 44 is provided with the connection with the cooperation of driving lever 71 lower end The dynamic tip 45；Described driving gear 5 is in low level work surface, the linkage tip on driving lever 71 lower end and linkage disk 44 in an initial condition 45 are in the state of being in transmission connection, and now driving gear 5 rotates forward, and mover wheel assembly 4 can be carried to rotate forward, and driving lever 71 upper end is unidirectional It is between drive mechanism and female basin transmission tip 35 and be connected off-state；When driving gear 5 is in the drive of clutch lowering or hoisting gear 21 During lower rising, driving lever 71 is passed through one-way driving mechanism and is in transmission connection with female basin transmission tip 35, thus driving gear 5 drives self-locking shape Bus wheel 31 under state rotates forward, and the then one-way driving mechanism inefficacy of driving gear 5 reversion switch operating face, bus wheel 31 holding is certainly Lock status will not invert with driving gear 5.

Described one-way driving mechanism includes mainshaft gear linkage basin 52, and mainshaft gear linkage basin 52 is fixing with driving gear 5 Connect, between mainshaft gear linkage basin 52 and central shaft 2, be provided with the second fixing bearing 53；Described mainshaft gear linkage basin 52 can turn It is arranged in female basin transmission tip 35, the second fixing bearing 53 is two-way bearing, mainshaft gear linkage basin 52 and second is fixing dynamicly Bearing 53 will not change the transmission direction of the first unilateral bearing 51, therefore can improve the company between driving gear 5 and central shaft 2 Connect intensity and transmission stability.

Described mainshaft gear linkage basin 52 outer edge surface is provided with some open slots 54, and some open slots 54 join along mainshaft gear The periphery equi-spaced apart setting of dynamic basin 52, is provided with the movable blocking arm 72 of eccentric rotation in open slot 54, some driving levers 71 upper End one-to-one corresponding is arranged in open slot 54, and driving lever 71 is hinged with the turning end of movable blocking arm 72, the bias of movable blocking arm 72 End and the female basin transmission tip 35 cooperation transmission, and it is provided with reduction torsion spring 73 between the eccentric end of movable blocking arm 72 and driving gear 5；Institute State driving gear 5 in middle position work surface, mainshaft gear linkage basin 52, the movable blocking arm 72 of driving lever 71 upper end are in female basin transmission In the tip 35, movable blocking arm 72 can centered on driving lever 71 eccentric rotary counterclockwise, the eccentric end of movable blocking arm 72 is in open slot 54 Outside when, the movable diameter that the eccentric end of movable blocking arm 72 links on basin 52 in mainshaft gear is maximum and is driven the tip more than female basin 35, driving gear 5 rotates, and movable blocking arm 72 is conflicted therewith and promotes female basin transmission tip 35 to rotate, thus drive lower tray 64 with And the bus wheel 31 being linked with it is rotated forward；During driving gear 5 is transitioned into middle position work surface from low level work surface, activity There are two kinds between blocking arm 72 and female basin transmission tip 35 and contact situation, first, the eccentric end upper surface of movable blocking arm 72 is rotating Touching female basin transmission tip 35, the reduction torsion spring 73 on movable blocking arm 72 is compressed so that female basin transmission tip 35 is in movable blocking arm 72 Upper surface slips over；Second, movable blocking arm 72 is driven in the rotational plane of the tip 35 in female basin and rotates, movable blocking arm 72 is driven in female basin Proceed to clockwise under the stop of the tip 35 in open slot 54, now driving gear 5 reversion and no drive connection on female wheel assembly 3, from And drive clutch lowering or hoisting gear 21 switching working mode.

Embodiments of the invention 1, described sub- wheel assembly 4 includes circle bobbin shaft 42 and some sub-line wheels 43, some sub-line wheels 43 are sleeved on round bobbin shaft 42 successively, and are provided with overload separation device between sub-line wheel 43 and circle bobbin shaft 42；Described center Axle 2 is rotationally arranged in round bobbin shaft 42, and the lower end of circle bobbin shaft 42 is provided with fixed disk 14, and circle bobbin shaft 42 upper end is provided with Linkage disk 44, fixed disk 14 is fixedly connected with the vertical rod 13 of surrounding, and is connected between the lower end of circle bobbin shaft 42 and fixed disk 14 There is the first fixing bearing 41；Described first fixing bearing 41 is two-way bearing, and sub-line wheel 43 is rotating with central shaft 2, Therefore sub-line wheel 43 and circle bobbin shaft 42 one can on fixed disk 14 Double-directional rotary, driving gear 5 dials in low level work surface Bar 71 lower end is in transmission connection with sub- wheel assembly 4, and driving gear 5 rotates forward, and drives some sub-line wheels 43 rotation lifting mosquito nets each Junction point, and some sub-line wheels 43 are connected on round bobbin shaft 42 by overload separation device, when arbitrary connection of mosquito net is pointed out Existing card line problem or when reaching the limit of height, overload separation device disconnects the connection of corresponding sub-line wheel 43 and circle bobbin shaft 42, from And realize the corrdinated adjustment function between some sub-line wheels 43；When mosquito net integrally rises to desired height, some sub-line wheels 43 Gravity forces pass through driving gear 5, central shaft 2 and pass to clutch lowering or hoisting gear 21, by turning of positioning that stage clip 24 provides Kinetic frictional resistances realize the locking of sub- wheel assembly 4, thus realizing parked function on arbitrary height for the mosquito net 81.

Operation principle:

Under normal conditions, gearshift cross bar 23 is on the low level work surface forcing fluctuating orbit 25, and positioning stage clip 24 is to gearshift cross bar 23 apply pressure so that it produces pivoting friction resistance, and gearshift cross bar 23 is stably in pressure fluctuating orbit 25 Nei Shi center Axle 22 can not rotate, and now the driving lever 71 in driving gear 5 is in the state of being in transmission connection, because first is unidirectional with sub- wheel assembly 4 Bearing 51 makes driving gear 55 can not invert on central shaft 2, and the gravity reversal effect power of some sub-line wheels 43 is via cylinder Axle 42, linkage disk 44, the linkage tip 45, driving lever 71, driving gear 5, the first unilateral bearing 51 are conducted to central shaft 2, and central shaft 2 Being limited by the frictional resistance of cross bar 23 of shifting gears makes said mechanism be in self-locking poised state, makes mosquito net be parked at residing height On.

Meanwhile, described support spring 63 applies downward pressure to clutch discs 62, and upper platen 33 cooperation lower tray 64 clamps Bus wheel 31, now bus wheel 31 and upper platen 33, lower tray 64, circle bobbin shaft 42 shape all-in-one-piece linkage structure, due to circle There is between bobbin shaft 42 and clutch discs 62 second unilateral bearing 61 of one-directional rotation, above-mentioned linkage structure is in clutch discs 62 Can not invert, so that the veiling support that bus wheel 31 connects is parked on residing height.

Described central shaft 22 and driving gear thereon 55, mainshaft gear linkage basin 52, driving lever 71, the first unilateral bearing 51 and the second fixing bearing 53 constitute the centre shaft of the present invention, gearshift cross bar 23 and guiding ring gear 22 during driving gear 5 reversion The up and down action of centre shaft is realized in cooperation, thus switching driving gear 5 and the work surface of driving lever 71；Gearshift cross bar 23 is being forced In the low level work surface of fluctuating orbit 25, high-order work surface, middle position work surface and excessive plane parked when, driving gear 5 exists Four kinds of co-rotating mode are had on central shaft 2:

First, the driving gear 5 under normality is in low level work surface, and driving lever 71 lower end is connected with the linkage tip 45 transmission of linkage disk 44 Connect, driving gear 5 just can drive driving lever 71, the linkage tip 45, linkage disk 44, circle bobbin shaft 42 and some sub-line wheels 43 successively Turn, make each junction point of mosquito net 81 rise to desired height simultaneously.

Second, when low level work is towards high-order work surface transition, driving gear 5 and driving lever 71 rise gearshift cross bar 23, During this, driving lever 71 is separated with the linkage tip 45, and sub-line wheel 43 loses restraining forceies, rotates, mosquito-net body is with leading under gravity pulls Messenger declines；When active force is cancelled, gearshift cross bar 23 is returned to by the automatic landing of pressure of positioning stage clip 24 on intermediate incline Low level work surface, sub-line wheel 43 is locked again.

3rd, when driving gear 5 is switched to high-order work surface, the stroke reed 29 on central shaft 2 promotes cylinder mother's axle 32 Rise, make platen 33 climb away lower tray 64 with clutch discs 62 along vertical rod 13, bus wheel 31 free to rotate thus weight Veiling support is made to fall under power effect.

4th, when gearshift cross bar 23 is in middle position work surface, stroke reed 29 downward actuation makes cylinder mother's axle 32 fall back to Elemental height, upper platen 33 and lower tray 64 cooperation clamping bus wheel 31, driving lever 71 passes through in movable blocking arm 72 and lower tray 64 The female basin transmission tip 35 be in transmission connection, driving gear 5 rotates forward and drives bus wheel 31 and then lift veiling support to desired height；Remove After the pulling force to driving gear 5 for the pin, cylinder mother's axle 32 passes through the one-directional rotation of the second unilateral bearing 61, makes female wheel assembly 3 times To self-locking state.

The lift adjustment of the combination by said structure for the present invention, achievable mosquito net and veiling support and arbitrary height Parked, facilitate the flexible use to mosquito net for the user, improve disassembly, cleaning convenience and safety in utilization, terminal with compact integral structure is steady Fixed, applied range.

Embodiment 2, described frame 1 is provided with bead back-up ring 57, and bead back-up ring 57 is corresponding to be connected to driving gear 5 surrounding Vertical rod 13 on, bead back-up ring 57 is arranged for open ring structure, and the vertical rod 13 at bead back-up ring 57 opening is provided with tooth sector 55, it is connected dynamic pelletron 56 between tooth sector 55 and driving gear 5, described power pelletron 56 is used for manual pulling sliding tooth Take turns 5 forward or reverse, realize mosquito net, the descending operation of veiling support.

Embodiment 3, is provided with safety plug 26 in described guiding ring gear 22, base plate 12 is provided with parked pedestal 27, safety plug 26 Vertically it is arranged on parked pedestal 27 and be equipped with gearshift cross bar 23；The upper end of described safety plug 26 is provided with positioning pressuring plate 28, it is provided with back-moving spring 15 between positioning pressuring plate 28 and base plate 12；Described safety plug 26 is used for limiting the excessive of gearshift cross bar 23 Rotate, especially when cross bar 23 of shifting gears switches towards high-order work surface from low level work, limit gearshift cross bar 23 and be directly entered High-order work surface causes the transmission mode mistake of driving gear 5.

The above is only the better embodiment of the present invention, therefore the construction described in all scopes according to present patent application, Equivalence changes or modification that feature and principle are done, are all included in the range of present patent application.

Claims (10)

1. a kind of mosquito net lowering or hoisting gear hovering, including frame (1) and sub- wheel assembly (4), described frame (1) includes top board (11) and base plate (12), it is fixedly connected by some vertical rods (13) between top board (11) and base plate (12)；It is characterized in that: described It is provided with bus wheel (31), some vertical rods (13) are provided with the positioning bearing that supporting bus wheel (31) horizontally rotates in frame (1) (34), it is provided with clutch discs (62) between bus wheel (31) and top board (11), clutch discs (62) can along the vertical rod (13) of surrounding up and down Move and between clutch discs (62) and top board (11), be provided with some support springs (63)；Described clutch discs (62) are provided with and bus The upper platen (33) that wheel (31) coordinates, is connected with the second unilateral bearing (61) between upper platen (33) and clutch discs (62)；Described It is provided with frame (1) and bus wheel (31) can be driven to rotate forward, the centre shaft that clutch discs (62) move up and down can be driven, and center shafting System is provided with the linkage disk (44) being in transmission connection with sub- wheel assembly (4).

2. the mosquito net lowering or hoisting gear hovering according to claim 1 it is characterised in that: wear on described bus wheel (31) There is cylinder mother's axle (32), the upper end of cylinder mother's axle (32) is arranged on platen (33) and the second unilateral bearing (63), and cylinder Mother's axle (32) upper end is fixedly connected with the rotor of upper platen (33) and the second unilateral bearing (63) respectively, under cylinder mother's axle (32) End can be moved up and down with it with centre shaft cooperation.

3. the mosquito net lowering or hoisting gear hovering according to claim 2 it is characterised in that: described bus wheel (31) and axis It is provided with the lower tray (64) coordinating with upper platen (33), lower tray (64) can be connected to positioning bearing with horizontally rotating between system (34), on, the center of rotation of described lower tray (64) is provided with through hole, and the lower end of cylinder mother's axle (32) is arranged in lower tray (64) Through hole in.

4. the mosquito net lowering or hoisting gear hovering according to claim 3 it is characterised in that: the through hole of described lower tray (64) It is provided with connecting key (36) and cylinder mother's axle (32) between.

5. the mosquito net lowering or hoisting gear hovering according to claim 3 it is characterised in that: described upper platen (33) and bus Between wheel (31), between lower tray (64) and bus wheel (31), it is equipped with silica gel friction plate (65).

6. the mosquito net lowering or hoisting gear hovering according to claim 1 it is characterised in that: described centre shaft includes center Axle (2), central shaft (2) is vertically rotatably arranged in frame (1), and the upper end of central shaft (2) is provided with and clutch discs (62) cooperation Linkage structure；Described central shaft (2) is provided with the driving gear (5) with bus wheel (31) cooperation transmission, and driving gear (5) It is connected with the first unilateral bearing (51) and central shaft (2) between；Described base plate is provided with and central shaft (2) can be driven to move up and down Clutch lowering or hoisting gear (21).

7. the mosquito net lowering or hoisting gear hovering according to claim 6 it is characterised in that: the upper end of described central shaft (2) It is arranged in cylinder mother's axle (32) and is rotating with it, link gear includes stroke reed (29), and stroke reed (29) sets Between cylinder mother's axle (32) lower surface and driving gear (5), and stroke reed (29) is fixedly connected with central shaft (2).

8. the mosquito net lowering or hoisting gear hovering according to claim 6 it is characterised in that: described linkage disk (44) can level Be rotatably arranged between base plate and driving gear (5), driving gear (5) be provided with respectively with lower tray (64), linkage disk (44) The transmission component (7) of cooperation.

9. the mosquito net lowering or hoisting gear hovering according to claim 8 it is characterised in that: described transmission component (7) includes Some driving levers (71) along the setting of same circumference equi-angularly space, some driving levers (71) are vertically arranged in driving gear (5)；Described The bottom surface of lower tray (64) is provided with the female basin transmission tip (35), and the upper end of some driving levers (71) is equipped with and the female basin transmission tip (35) The one-way driving mechanism of cooperation, the upper surface of described linkage disk (44) is provided with the linkage tip with the cooperation of driving lever (71) lower end (45).

10. the mosquito net lowering or hoisting gear hovering according to claim 9 it is characterised in that: described one-way driving mechanism bag Include mainshaft gear linkage basin (52), mainshaft gear linkage basin (52) is fixedly connected with driving gear (5), mainshaft gear linkage basin (52) it is provided with the second fixing bearing (53) and central shaft (2) between；Described mainshaft gear linkage basin (52) is if outer edge surface is provided with Dry open slot (54), some open slots (54) are along the periphery equi-spaced apart setting of mainshaft gear linkage basin (52), open slot (54) Inside it is provided with the movable blocking arm (72) of eccentric rotation, the upper end of some driving levers (71) corresponds and is arranged in open slot (54), And driving lever (71) is hinged with the turning end of movable blocking arm (72), the eccentric end of movable blocking arm (72) is coordinated with the female basin transmission tip (35) It is provided with reduction torsion spring (73) between transmission, and the eccentric end of movable blocking arm (72) and driving gear (5).