CN205173213U - Change -over mechanism - Google Patents
Change -over mechanism Download PDFInfo
- Publication number
- CN205173213U CN205173213U CN201520853317.XU CN201520853317U CN205173213U CN 205173213 U CN205173213 U CN 205173213U CN 201520853317 U CN201520853317 U CN 201520853317U CN 205173213 U CN205173213 U CN 205173213U
- Authority
- CN
- China
- Prior art keywords
- pivotal axis
- otic placode
- parallel
- plates
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a movable connecting mechanism, concretely relates to is used for rotating the change -over mechanism who connects for one kind. Change -over mechanism, including first otic placode and second otic placode, staggered parallel -plate about the second otic placode includes two still includes a pivotal axis, the pivotal axis penetrates in mounting hole and the locating hole, its one end of pivotal axis is inflated top, and the other end of pivotal axis is equipped with the metal shrapnel of two parallels and interval setting, and metal shrapnel's length direction keeps unanimous with the axial of pivotal axis, the top of pivotal axis lies in the top of two parallel -plates, and the below of two parallel -plates is equipped with the abrupt piece of fixing on metal shrapnel, wherein with on the neighbouring parallel -plate of abrupt piece is equipped with the heavy platform that is used for holding abrupt piece, and the external diameter at top and the length distance that two abrupt pieces occupied all are greater than the aperture of locating hole. This patent has overcome the technical defect that the pivot that exists easily drops among the prior art, provide to avoid the change -over mechanism that drops.
Description
Technical field
The utility model relates to a kind of moving connecting mechanism, is specifically related to a kind of changeover mechanism for being rotationally connected.
Background technique
The wide variety of current rotational coupling mechanism, a kind of rotating mechanism disclosed in Chinese patent CN2844541, comprises two rotating connectors be connected by rotating shaft; One rotating connector is provided with projection, and locating piece is provided with the locating slot and rotation slot that match with this projection, is provided with stop part between locating slot and rotation slot, and at least one of them is made up of elastic material for stop part or projection.Locating piece is provided with locating slot and rotation slot, and time folding, projection first rotates in rotation slot, when bump contact stop part, due to stop part or projection, at least one of them is made up of elastic material, strengthens folding exerting oneself, projection just can overcome the resistance of stop part, enters locating slot, completes folding.
There is following technological deficiency in above-mentioned patent: rotating shaft is located in rotation slot and is rotated, but be subject to mechanical vibration impact and the phenomenon of loose or dislocation occurs.
Model utility content
The utility model is intended to provide a kind of changeover mechanism, can prevent the loose or dislocation of rotating shaft.
Changeover mechanism in this programme, comprise the first otic placode and the second otic placode, described second otic placode comprises about two parallel-plates staggered, two parallel-plates are respectively equipped with the positioning hole that position is corresponding, described first otic placode is provided with mounting hole, first otic placode is located between two parallel-plates, and the axes coincide of described mounting hole and positioning hole; Also comprise a pivotal axis, described pivotal axis penetrates in described mounting hole and positioning hole; Its one end of described pivotal axis is the top of expanding, and the other end of described pivotal axis is provided with the metal clips of two parallel, spaced-apart settings, and the length direction of described metal clips and the axis of pivotal axis are consistent; The top of described pivotal axis is positioned at the top of two parallel-plates, the lower end that metal clips passes two parallel-plates is provided with projection, wherein contiguous with described projection parallel-plate is provided with the heavy stand for holding described projection, and the external diameter at described top and the length distance occupied by two projections are all greater than the aperture of described positioning hole.
" length distance occupied by two projections " alleged by the utility model, on the line direction namely between two projections, the distance value between the outermost end of two projections.
Adopt the technical solution of the utility model, there is following technique effect:
Before installation, first and second otic placode described and pivotal axis are all without annexation.During installation, between two parallel-plates of first the first otic placode being inserted the second otic placode, require the axes coincide of the positioning hole of the second otic placode and the mounting hole of the first otic placode; Then described pivotal axis is penetrated in described mounting hole and positioning hole.
Length distance occupied by the external diameter at described top and two projections is all greater than the aperture of described positioning hole, so the top of two parallel-plates can be stayed in described top; Although the size in the gap that two projections add between two projections is greater than described positioning hole, but described projection is provided on metal clips, gap between described projection and diminishing with adaptive, makes two projections be enough to enter into through described positioning hole the below of two parallel-plates.
The parallel-plate contiguous with described projection is provided with the heavy stand for holding described projection, and described projection can directly be placed in described heavy stand.If now draw described top with portable again, described projection is understood directly and heavy stand compresses to stop pivotal axis to be transferred to.
From the above mentioned, if there are certain mechanical vibration, pivotal axis is jumped up and down, be also difficult to described pivotal axis is come off.
If described pivotal axis must be changed, then need projection described in Manual press, make gap shrinks between two projections, and then lift described top, so just described pivotal axis can be taken out between two otic placodes.
Further, the pivotal axis between described metal clips and described top is provided with the axial teeth of a circle, is provided with the teeth groove with described axial tooth tooth form fit in the mounting hole of described first otic placode.
If (between projection and top) is too small in the middle part of described pivotal axis, pivotal axis can by mechanical vibration affect in described positioning hole or mounting hole inner circumferential vibration (as rotation), although described pivotal axis can not be made to come off, the using effect of pivotal axis can be affected like this.Special axial teeth and the teeth groove arranging form fit in described pivotal axis and mounting hole for this reason, carries out circumference to described pivotal axis spacing, avoids the insignificant rotation of pivotal axis.
Further, described first otic placode is provided with for the horizontal opening slot penetrated in mounting hole of described pivotal axis.
First otic placode arranges described opening slot, just described first otic placode can be taken off under the prerequisite of not taking off described pivotal axis like this, be convenient to the replacing of the first otic placode, cleaning and maintenance.
Further, described heavy stand is provided with the limiting stopper corresponding with described projection.
In many applied environments, the angle of swing between two pieces of otic placodes is all conditional, can not immoderate rotation some weeks.Described limiting stopper is spacing to described projection, also relative limit between described pivotal axis and the second otic placode is just achieved, owing to also cannot relatively rotate between pivotal axis with the first otic placode, first and second otic placode described also just achieves relative limit, cannot rotate at any angle between two otic placodes.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the utility model changeover mechanism embodiment one.
Fig. 2 is the modified node method schematic diagram of the utility model changeover mechanism embodiment two.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: the second otic placode 10, parallel-plate 11, positioning hole 11a, the first otic placode 21, mounting hole 21a, teeth groove 21a-a, top 32, side 32a, pivotal axis 30, axial teeth 31, projection 33.
Embodiment one
As shown in Figure 1, changeover mechanism, comprises the first otic placode 21 and the second otic placode 10, and described second otic placode 10 comprises on about two parallel-plates staggered 11, two parallel-plate 11 and is respectively equipped with positioning hole 11a corresponding to position.First otic placode 21 and the second otic placode 10 are fixedly connected with needing the mechanism be rotationally connected respectively.
Described first otic placode 21 is provided with mounting hole 21a, and the first otic placode 21 is located between above-mentioned two parallel-plates 11, and the axes coincide of described mounting hole 21a and positioning hole 11a.
As shown in Figure 1, the present embodiment changeover mechanism also comprises a pivotal axis 30, and described pivotal axis 30 penetrates in described mounting hole 21a and positioning hole 11a; Described its one end of pivotal axis 30 is the top 32 of expanding.Described top 32 is in regular hexagon, and top 32, with corresponding side 32a, is convenient to finger and is lifted.
The other end of described pivotal axis 30 is provided with the metal clips of two parallel, spaced-apart settings, and the length direction of described metal clips and the axis of pivotal axis 30 are consistent; The top 32 of described pivotal axis 30 is positioned at the top of two parallel-plates 11, and the lower end that metal clips passes two parallel-plates 11 is provided with projection 33.As shown in Figure 1, the transverse section semicircular in shape of described projection 33, and also from the bottom to top, radius increases gradually.
Pivotal axis 30 between described metal clips and described top 32 is provided with the axial teeth 31 of a circle, is provided with the teeth groove 21a-a with described axial teeth 31 form fit in the mounting hole 21a of described first otic placode 21.
Wherein contiguous with described projection 33 parallel-plate 11 is provided with the heavy stand for holding described projection 33, and the both sides of heavy stand are provided with and longer lead straight edge, perpendicular distance between two edges is less than the distance between two projections 33, and two edges of described like this heavy stand just can as the limiting stopper to described projection 33.
The external diameter at described top 32 is greater than the aperture 0.2 ~ 0.3cm of described positioning hole 11a.Length distance occupied by two projections 33 is greater than the aperture 0.3 ~ 0.4cm of described positioning hole 11a.
Embodiment two
As shown in Figure 2, the difference of the present embodiment and embodiment one is, described first otic placode 21 is provided with for the horizontal opening slot penetrated in mounting hole 21a of described pivotal axis 30.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. changeover mechanism, comprise the first otic placode and the second otic placode, described second otic placode comprises about two parallel-plates staggered, two parallel-plates are respectively equipped with the positioning hole that position is corresponding, described first otic placode is provided with mounting hole, first otic placode is located between two parallel-plates, and the axes coincide of described mounting hole and positioning hole; Also comprise a pivotal axis, described pivotal axis penetrates in described mounting hole and positioning hole; It is characterized in that: its one end of described pivotal axis is the top of expanding, the other end of described pivotal axis is provided with the metal clips of two parallel, spaced-apart settings, and the length direction of described metal clips and the axis of pivotal axis are consistent; The top of described pivotal axis is positioned at the top of two parallel-plates, the lower end that metal clips passes two parallel-plates is provided with projection, wherein contiguous with described projection parallel-plate is provided with the heavy stand for holding described projection, and the external diameter at described top and the length distance occupied by two projections are all greater than the aperture of described positioning hole.
2. changeover mechanism according to claim 1, is characterized in that: the pivotal axis between described metal clips and described top is provided with the axial teeth of a circle, is provided with the teeth groove with described axial tooth tooth form fit in the mounting hole of described first otic placode.
3. changeover mechanism according to claim 2, is characterized in that: described first otic placode is provided with for the horizontal opening slot penetrated in mounting hole of described pivotal axis.
4. changeover mechanism according to claim 2, is characterized in that: described heavy stand is provided with the limiting stopper corresponding with described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853317.XU CN205173213U (en) | 2015-10-30 | 2015-10-30 | Change -over mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853317.XU CN205173213U (en) | 2015-10-30 | 2015-10-30 | Change -over mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173213U true CN205173213U (en) | 2016-04-20 |
Family
ID=55737213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853317.XU Expired - Fee Related CN205173213U (en) | 2015-10-30 | 2015-10-30 | Change -over mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173213U (en) |
-
2015
- 2015-10-30 CN CN201520853317.XU patent/CN205173213U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161030 |