Background technique
Electronic linkage mechanism is the motion of using always, and itself and drive unit (for example motor, gear-box etc.) are used, and have wide range of applications, and may be used in all kinds of machinery such as power door operation, transmission device.In the daily life, may move the occasion that impacts to drive unit at some, need be with drive unit and control unit isolation or sealing; Also have some products that decorative appearance is had relatively high expectations, also need drive unit and each connecting rod are isolated with casing.But existing electronic linkage mechanism, its range of movement is bigger, with casing electronic linkage mechanism is being isolated or during sealing, need offer bigger space or emptiness avoiding hole on casing, causes and isolates or sealing difficulty comparatively, isolate or sealing effect relatively poor.With reference to shown in Figure 1, owing to not have fixing point of intersection during electronic linkage mechanism A motion, electronic linkage mechanism A range of movement is bigger, utilizes casing B that electronic linkage mechanism A is isolated or during sealing, need offer macropore C on casing B, isolate or sealing relatively more difficult.
The model utility content
Main purpose of the present utility model provides a kind of electronic linkage mechanism, is intended to reduce the range of movement of electronic connecting rod mechanism movement point, makes casing can isolate better or the sealing electric linkage mechanism, improves and isolates or sealing effect.
The electronic linkage mechanism of the utility model comprises fixing rod, driving lever, follower lever and take-off lever, described fixing rod and drive unit are fixed, the head end of described driving lever and the head end of fixing rod articulate, and the tail end of driving lever and the head end of described take-off lever articulate, the driving lever middle part is provided with first arc section, and the center of circle is the center that driving lever is connected with fixing rod; The head end of described follower lever and fixing rod tail end articulate, and the tail end of follower lever and the tail end of described take-off lever articulate, the follower lever middle part is provided with second arc section, and the center of circle is the center that follower lever is connected with fixing rod, and the projection of described first arc section and second arc section is intersected.
Preferably, also comprise at least a with in the lower levelling plate: metal sliding shim, oil-containing pad or plastic cement pad are positioned at and respectively articulate the position.
Driving lever in the electronic linkage mechanism of the utility model and follower lever are provided with cross one another first arc section and second arc end, and two arc section projections are intersected.During electronic connecting rod mechanism movement; driving lever is along rotating with the center that is connected of fixing rod; follower lever is along rotating with the center that is connected of fixing rod; its movement locus is all by the projection intersection point; during with the electronic linkage mechanism of box sealing; can be better to fixing rod and driving mechanism sealing or isolation, the protection power mechanism is isolated the noise that power mechanism produces.
Description of drawings
Fig. 1 isolates with casing in the prior art or the schematic representation of sealing electric linkage mechanism;
Fig. 2 is the structural representation of electronic linkage mechanism in the mode of execution of the present utility model;
Fig. 3 is the view before linkage mechanism is opened among Fig. 2;
Fig. 4 is the view when connecting rod mechanism movement stops among Fig. 3;
Fig. 5 is the perspective view of electronic linkage mechanism among Fig. 2;
Fig. 6 is the structural representation of electronic linkage mechanism in another mode of execution of the present utility model.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 2 and Fig. 3, the electronic linkage mechanism of the utility model comprises linkage mechanism 100, drive unit 200 and control gear 300, and drive unit 200 is used for drive link mechanism 100 under the control of control gear 300, makes its motion.Linkage mechanism 100 comprises fixing rod 10, driving lever 20, follower lever 30 and take-off lever 40, fixing rod 10 is fixed with drive unit, the head end of the head end of driving lever 20 and fixing rod 10 articulates, and the head end of the tail end of driving lever 20 and described take-off lever 40 articulates, driving lever 20 middle parts are provided with first arc section 21, and the center of circle is the center that driving lever 20 is connected with fixing rod 10; The head end of follower lever 30 and fixing rod 10 tail ends articulate, and the pivot joint of the tail end of the tail end of follower lever 30 and take-off lever 40, and follower lever 30 middle parts are provided with second arc section 31, and the center of circle is the center that follower lever 30 is connected with fixing rod 10; The projection of first arc section 21 and second arc section 31 is intersected, and intersection point is K.In one embodiment, the plane parallel at the plane at driving lever 20 places and follower lever 30 places, the projection of first arc section 21 and second arc section 31 intersects at the K point.
With reference to Fig. 4, first arc section 21 in the driving lever 20 intersects at the K point with second arc section 31 in the follower lever 30, initiatively electronic linkage mechanism is when the direction of arrow is rotated when drive unit, and first arc section 21 is all the time by the K point, and second arc section 31 is also all the time by the K point.When utilizing casing A that drive unit is isolated or sealing, only need on the corresponding position of casing, to offer an emptiness avoiding hole C who is a bit larger tham intersection and get final product.Even after the assembling, also this emptiness avoiding hole C shutoff with the raising sealability, thereby can be protected drive unit, electronic linkage mechanism 100 and electric elements better.In addition, but the noise that sent of isolation drive device, electronic linkage mechanism 100 also.Another benefit of the electronic linkage mechanism 100 of the utility model is: in the occasion that outward appearance is had relatively high expectations, movement parts can be hidden into a box house better, thereby improve the total quality of product.
Above-mentioned electronic linkage mechanism also can be provided with pad, this pad can be at least a with in the lower levelling plate: metal sliding shim, oil-containing pad or plastic cement pad, be positioned at and respectively articulate the position, the pivot joint position of driving lever 20 and take-off lever 40 for example, the pivot joint position of fixing rod 10 and follower lever 30 etc.Above-mentioned pad has self-lubricating property, with the friction process of other parts in, can separate out lubricator, for example graphite, lubricant oil or plastic cement particle etc.
Take-off lever 40 be driven object and fixedly connected, it can produce the curvilinear motion track under the drive of driving lever 20 and follower lever 30, drive to be driven object up-down.
With reference to Fig. 2 and Fig. 5, in one embodiment, drive unit 200 is provided with motor 201 and the gear-box 202 that links to each other with motor output shaft.This gear-box 202 is provided with the housing of planetray reducer group and ccontaining planetray reducer group, and fixing rod 10 is fixed on the housing.The input end of gear-box 202 links to each other with motor output shaft, and output terminal is fixedlyed connected with driving lever 20.The selection mode of motor 201 has multiple, can select dissimilar motors according to different applications, for example, and synchronous machine, stepper motor etc.Gear-box 202 usefulness output shafts 203 output powers, this output shaft 203 links to each other with above-mentioned driving lever 20, and it can drive driving lever 20 and rotates together when motor 201 work.
The operating angle of linkage mechanism 100 can be controlled by control unit 300.As shown in Figure 6, in one embodiment, control unit 300 is provided with little process chip 301, this little process chip 301 can be by calculating the rotation angle of gearbox output shaft, thereby the slewing area of the driving lever 20 that control is connected with output shaft, the purpose of the operating angle of realization control link mechanism 100.In another embodiment, also can contact switch be set respectively on the both sides of driving lever 20 and follower lever 30, obtain the motor message of driving lever 20 and follower lever 30 by contact switch, so that little process chip 301 is controlled the forward or reverse of motors 201, thereby reaches the purpose of the operating angle of control link mechanism 100.For example, in a concrete example, first contact switch 302 and second contact switch 303 can be set in control unit 300, wherein first contact switch 302 is positioned at a side of described driving shaft 20, its contact and the 21 corresponding settings of first arc section, be used to obtain the activation signal of first arc section 21 and contact and feed back to little process chip 301, so that motor 201 is just changeing in the accessory drive 200, thereby it is up to make take-off lever 40 drives be driven object; Second contact switch 303 is positioned at a side of described follower lever 30, its contact and the 31 corresponding settings of second arc section, be used to obtain the activation signal of second arc section 31 and contact and feed back to little process chip 301, so that motor 201 counter-rotatings in the accessory drive 200, thereby it is descending to make take-off lever 40 drives be driven object.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.