CN2153859Y - Cylindrical shape multidigit keyswitch - Google Patents

Abstract

The utility model relates to a cylindrical shape multidigit keyswitch, comprising a base, an inner cylinder which is fixedly connected with the base, an outer cylinder out of the inner cylinder, which is concentric with the inner cylinder and is driven to rotate by a stepper motor which is installed on the base, a slide disk in the inner cylinder, which is supported by a spring and can move up and down and a handle which is used to control the slide disk to move up and down. The through hole on the inner cylinder and the through hole on the outer cylinder are respectively provided with a key; a push rod which is controlled by the handle and can move in radial direction is arranged in the slide disk; the push rod passes through the hole on the inner cylinder and contacts the key on the outer cylinder. The switch of the utility model is provided with a column shaped spatial structure; the utility model has the advantages of small size and easy installation.

Description

Cylindrical shape multidigit keyswitch

The utility model relates to a kind of multidigit key switch.

At present, the multi-position switch of large scale circuit and complicated circuit is floor plan usually, and this generally needs sizable arrangement areas, and under some specified conditions, the big planar configuration of switch will be very difficult or unallowed, and it brings great inconvenience for the design of circuit.

The purpose of this utility model is exactly in order to overcome above-mentioned deficiency, and a kind of multidigit key switch of cylindricality is provided.

Multidigit key switch of the present utility model comprises button, handle and a base, has an inner cylinder that is fixedly linked with it and one on the base outside inner cylinder and concentric with it rotating outer cylinder, a micro-step motor is contained on the base, being used for driving outer cylinder by the tooth on the outer cylinder that is contained in the gear on the step motor shaft and is meshed with it rotates, at the radial direction through hole that has on the inner cylinder mutually more than across a certain distance two-layer, this through hole is a plurality of uniform for every layer, and the through hole of each layer longitudinally aligns, have on the outer cylinder along the two-layer above radial direction through hole that laterally aligns with each layer of inner cylinder through hole respectively, its every layer through hole also is a plurality of uniform and alignment longitudinally, button is contained in the through hole of outer cylinder, sliding plate with middle circular hole can slide up and down in inner cylinder but setting with one heart with it un-rotatably, the bottom of sliding plate is supported by helical spring, in sliding plate, has the through hole that a plurality of through holes with on the inner cylinder radially radially align, the push rod that is resetted by spring control wherein is housed, the outer end of push rod is close its excircle in sliding plate, the inner of push rod is stretched in the middle circular hole of sliding plate, inner cylinder also has the top cover of a band centre bore that becomes one with it, above-mentioned handle stretches along the central axis of sliding plate, a flange that becomes one with it on the handle be pressed in sliding plate above, stretch into downwards from this flange handle in the middle of each push rod in the middle circular hole of sliding plate inner, upwards then pass a slide plate and a sliding sleeve that has flange, this sliding sleeve and handle are slidingly matched, the centre bore that sliding sleeve passes top cover is fixedlyed connected with slide plate, the flange of sliding sleeve and slide plate are clamped above-mentioned top cover slidably, so that handle can move by laterally steering, be provided with in the sliding sleeve inboard and hit pearl, have on the handle that in sliding sleeve, slides with inner cylinder on the corresponding pearl groove that hits of hole interlamellar spacing, the four-way self-resetting switch is equipped with in the upper end that handle stretches out sliding sleeve, have the thread switching control road in the handle, be used for guiding thread switching control into stepping motor downwards.During operation, by four-way self-resetting switch control step motor, make outer cylinder turn over an angle forward or backward, press down handle again and laterally move handle, make push rod protruding and the button on the selected outer cylinder is implemented control, move handle then to the centre position, push rod is resetted, again the button of other selection is controlled.

Multidigit key switch of the present utility model is the cylindricality stereochemical structure, and volume is little, is easy to install, and the configuration that it has overcome existing multi-position switch needs the shortcoming on plane greatly.

With reference to the accompanying drawings the utility model is further described

Fig. 1 is the phantom of multidigit key switch of the present utility model;

Fig. 2 is the half sectional view of multidigit key switch of the present utility model along A-A line among Fig. 1;

Fig. 3 is the schematic diagram of sliding plate in the utility model multidigit key switch shown in Figure 1;

Fig. 4 is the cutaway view of sliding plate along B-B line among Fig. 3.

Referring to Fig. 1, Fig. 2, multidigit key switch of the present utility model has a base 1, has an inner cylinder that is fixedly linked with it 6 and one on the base 1 outside inner cylinder 6 and concentric with it rotating outer cylinder 4, a micro-step motor 2 is contained on the base 1, is used for driving outer cylinder 4 by the tooth on the outer cylinder 4 that is contained in the gear 3 on 2 of the stepping motors and is engaged with and rotates.Is three layers at the two-layer above radial direction through hole 8(that has on the inner cylinder 6 mutually across a certain distance at this), every layer of through hole 8 is uniform for a plurality of (they are 8 at this), and the through hole 8 of each layer longitudinally (be inner cylinder 6 axially) align.Have the horizontal two-layer above radial direction through hole 22(that aligns with each layer through hole 8 respectively in edge on the outer cylinder 4 at this, through hole 22 is three layers), every layer of through hole 22 is uniform for a plurality of (they are 40 at this), and alignment longitudinally.Button 23 is contained in the through hole 22 of outer cylinder.Sliding plate 10 with middle circular hole can move up and down in inner cylinder 6 but setting with one heart with it un-rotatably, the bottom of sliding plate 10 is by helical spring 9 supportings, having the through hole 25(that a plurality of through holes 8 with on the inner cylinder 6 radially radially align in sliding plate 10 is 8 at this), the push rod 13 that is resetted by spring control wherein is housed, the outer end of push rod 13 is close its excircle in sliding plate 10, inner then stretch in the middle circular hole of sliding plate 10, inner cylinder 6 also has a top cover that has centre bore 21 that becomes one with it, handle 16 stretches along the central axis of sliding plate 10, on the handle 16 with it flange 14 of all-in-one-piece be pressed on the sliding plate 10, stretch into downwards from flange 14 handles 16 in the middle of each push rod 13 in the center hole of sliding plate 10 inner, upwards then pass a slide plate 12 and a sliding sleeve 15 that has flange, sliding sleeve 15 is slidingly matched with handle 16, the centre bore that sliding sleeve 15 passes top cover 21 is fixedlyed connected with slide plate 12, the flange of sliding sleeve 15 and slide plate 12 are clamped top cover 21 slidably, so that handle 16 can move by laterally steering, be provided with in sliding sleeve 15 inboards and hit pearl 20, and have on the handle 16 that in sliding sleeve 15, slides with inner cylinder 6 on the corresponding pearl groove 19(that hits of hole interlamellar spacing be three at this, corresponding to three layers of hole on the inner cylinder 6), four-way self-resetting switch 17 is equipped with in the upper end that handle 16 stretches out sliding sleeve 15, have thread switching control road 18 in the handle 16, be used for guiding thread switching control into stepping motor 2 downwards.

During operation, at first by four-way self-resetting switch 17 control step motors 2, make selected button 23 forward through hole 8 positions aligning on the inner cylinder 6 with a vicinity to, by handle 16 sliding plate 10 is pressed onto the layer position at the button place of selection then, move handle 16 to selected button direction, make the button 23 that push rod 13 is radially protruding and shake-up is selected, then handle is pushed into the centre position, push rod resets, make after outer cylinder 4 resets by switch 17 control step motors 2 again, can touch other button by said process.

Fig. 3 and Fig. 4 clearly show that the structure of sliding plate 10.

Gag lever post 11 can be set, with spacing to laterally moving of handle 16 on top cover 21.Guide rod 7 also can be set on the base and longitudinal hole 26 is set on sliding plate 10, guide rod 7 upwards passes spring 9 and through hole 26 slidably by base 1, so that sliding plate 10 slides up and down guiding along guide rod 7.

Claims (4)

1, a kind of multidigit key switch, comprise button (23) and handle (16), it is characterized in that, this switch has a base (1), has an inner cylinder that is fixedly linked with it (6) and one on the base (1) outside inner cylinder (6) and concentric with it rotating outer cylinder (4), a micro-step motor (2) is contained on the base (1), being used for driving outer cylinder (4) by the tooth on the outer cylinder (4) that is contained in the gear (3) on micromachine (2) axle and is meshed with it rotates, at the radial direction through hole (8) that has on the inner cylinder (6) mutually more than across a certain distance two-layer, this through hole (8) is a plurality of uniform for every layer, and the through hole of each layer (8) longitudinally aligns, have on the outer cylinder (4) along laterally with align with each layer through hole (8) respectively two-layer more than radial direction through hole (22), every layer of through hole (22) is a plurality of uniform, and alignment longitudinally, button (23) is contained in the through hole (22), sliding plate (10) with middle circular hole can slide up and down in inner cylinder (6) but setting with one heart with it un-rotatably, the bottom of sliding plate (10) is supported by helical spring (9), in sliding plate (10), has the through hole (25) that a plurality of through holes (8) with on the inner cylinder (6) radially radially align, the push rod (13) that is resetted by spring control wherein is housed, the outer end of push rod (13) is close its excircle in sliding plate (10), the inner of push rod (13) is stretched in the middle circular hole of sliding plate, inner cylinder (6) also has the top cover (21) of a band centre bore that becomes one with it, handle (16) stretches along the central axis of sliding plate (10), a flange (14) that becomes one with it on the handle (16) be pressed in sliding plate (10) above, stretch into the inner centre of interior each push rod (13) of middle circular hole of sliding plate (10) downwards from flange (14) handle (16), upwards then pass a slide plate (12) and a sliding sleeve (15) that has flange, sliding sleeve (15) is slidingly matched with handle (16), the centre bore that sliding sleeve (15) passes top cover (21) is fixedlyed connected with slide plate (12), the flange of sliding sleeve (15) and slide plate (12) are clamped top cover (21) slidably, so that handle (16) can move by laterally steering, be provided with in sliding sleeve (15) inboard and hit pearl (20), have on the handle (16) that in sliding sleeve (15), slides with inner cylinder (6) on the corresponding pearl groove (19) that hits of hole interlamellar spacing, four-way self-resetting switch (17) is equipped with in the upper end that handle (16) stretches out sliding sleeve (15), have thread switching control road (18) in the handle (16), be used for guiding thread switching control into stepping motor (2) downwards.

2, according to the multidigit key switch of claim 1, it is characterized in that on top cover (21), having gag lever post (11).

3, according to the multidigit key switch of claim 1, it is characterized in that, guide rod (7) more than two is housed on base (1), has longitudinal hole (26) on the sliding plate (10), guide rod upwards passes spring (9) and through hole (26) slidably by base (1).

4, according to the multidigit key switch of claim 1, it is characterized in that having three layers of through hole (8) on the inner cylinder (6), 8 every layer, have three layers of through hole (22) on the outer cylinder (4), 40 every layer.

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