CN209880519U - Special-shaped hole limiting shaft rotation angle structure - Google Patents
Special-shaped hole limiting shaft rotation angle structure Download PDFInfo
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- CN209880519U CN209880519U CN201920830165.XU CN201920830165U CN209880519U CN 209880519 U CN209880519 U CN 209880519U CN 201920830165 U CN201920830165 U CN 201920830165U CN 209880519 U CN209880519 U CN 209880519U
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- shaped hole
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Abstract
The utility model discloses a special-shaped hole limiting shaft rotating angle structure, which comprises a flat end shaft and a special-shaped hole, wherein the flat end shaft consists of a straight shaft section and a flat shaft section, the two width side surfaces of the flat shaft section are set as planes, and the two length side surfaces of the flat shaft section are set as cambered surfaces; the cross section of the special-shaped hole is of a structure with large two heads and small middle waist, and the two heads of the special-shaped hole are both provided with convex arc structures; the flat shaft section of flat end shaft and dysmorphism hole grafting cooperation, and the length both sides of flat shaft section and the both ends partial normal contact cooperation in dysmorphism hole respectively. The utility model discloses utilize mutual interference and the angle limit function who forms when rotatory between flat end shaft and the dysmorphism hole, realize directly spacing, not only reduced unnecessary part, have the mechanism moreover simple, be convenient for processing, fix a position advantages such as accurate, practice thrift the cost, can apply to any mechanism and rotate spacingly.
Description
Technical Field
The utility model relates to an electrical switching equipment technical field especially relates to a heterotypic hole spacing axle rotation angle structure.
Background
The power switch mechanism has clear requirements on the rotation limit of a manual opening and closing shaft, and is generally realized by matching parts such as bolt heads, pin caps and the like at present, but the power switch mechanism has more parts and is inaccurate in positioning due to size limitation.
The utility model discloses a shafting and three-station electrical switch like bulletin No. CN105047469B, pivot rotation limiting mechanism includes the support, be equipped with clockwise pin and anticlockwise pin on the support, clockwise pin and anticlockwise pin have on its reciprocating motion stroke to keep off the position and dodge the position, pivot rotation limiting mechanism includes actuating mechanism and the elastic force that resets, actuating mechanism's actuating force is greater than when the elastic force that resets, corresponding pin is kept away the position by corresponding under the actuating mechanism actuating force and is moved to corresponding fender position, when the elastic force that resets is greater than actuating mechanism's actuating force, corresponding pin is kept away the position by corresponding under the effect of the elastic force that resets and is moved to corresponding the position of keeping away. The clockwise stop lever and the anticlockwise stop lever are switched between the stop position and the avoidance position through the matching of the driving mechanism and the reset elastic acting force, the rotation limit of the to-be-limited rotating shaft is effectively realized through a mechanical transmission mode, and the operation is accurate and reliable.
For example, the utility model patent with publication number CN205781762U discloses a rotational shaft limiting mechanism of a pan/tilt head, which is used for limiting the rotational shaft of a motor and controlling the rotational angle of the rotational shaft, and the limiting device comprises a limiting mechanism and a stop mechanism, wherein the stop mechanism is arranged on the pan/tilt head, the limiting mechanism is fixedly arranged on the rotational shaft of the motor, and the stop mechanism is positioned below the limiting mechanism; when the motor rotates, the limiting mechanism rotates along with the rotating shaft, and the limiting mechanism can be in contact with the stop mechanism and abut against the stop mechanism to prevent the rotating shaft from rotating continuously. This county is that the spacing precision of device is high, can confirm backstop mechanism mounted position according to the settlement turned angle of axis of rotation, and this stop device can use with the motor cooperation of difference, and the commonality is strong.
Above-mentioned scheme still exists the spacing cooperation part of realization and is more, fixes a position also inaccurate problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a heterotypic hole spacing axle rotation angle structure.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a rotation angle structure of a special-shaped hole limiting shaft comprises a flat end shaft and a special-shaped hole, wherein the flat end shaft consists of a straight shaft section and a flat shaft section, two width side surfaces of the flat shaft section are set to be planes, and two length side surfaces of the flat shaft section are set to be cambered surfaces;
the cross section of the special-shaped hole is of a structure with large two heads and small middle waist, and the two heads of the special-shaped hole are both provided with convex arc structures;
the flat shaft section of flat end shaft and dysmorphism hole grafting cooperation, and the length both sides of flat shaft section and the both ends partial normal contact cooperation in dysmorphism hole respectively.
Two heads of the section of the special-shaped hole are symmetrically arranged by taking the middle waist part as a symmetrical line.
The connecting parts of the two heads of the special-shaped hole and the middle waist part are of oblique plane structures.
The length two side surfaces of the flat shaft section are aligned with the outer peripheral surface of the straight shaft section.
The utility model has the advantages that:
the utility model discloses utilize mutual interference and the angle limit function who forms when rotatory between flat end shaft and the dysmorphism hole, realize directly spacing, not only reduced unnecessary part, have the mechanism moreover simple, be convenient for processing, fix a position advantages such as accurate, practice thrift the cost, can apply to any mechanism and rotate spacingly. Meanwhile, the rotation limit can change the size of the rotation angle according to the shape of the special-shaped hole.
Drawings
FIG. 1 is a schematic view of a flat-ended shaft component;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a part with a profiled bore;
FIG. 4 is an exploded view of the flat end shaft after mating with the shaped hole;
fig. 5 is a working schematic diagram of the flat-end shaft and the special-shaped hole.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 5, the utility model discloses a heterotypic hole spacing axle rotation angle structure, including flat end axle 1 and special-shaped hole 2, flat end axle 1 comprises straight axle section 11 and flat axle section 12, and the width both sides face of flat axle section 12 is established to the plane, and the length both sides face of flat axle section 12 is established to the cambered surface that aligns with the outer peripheral face of straight axle section 11.
The section of the special-shaped hole 2 is of a structure with two large ends and a small middle waist, and the two ends of the special-shaped hole are both designed to be convex arc structures. In this embodiment, the special-shaped hole 2 is disposed on the mounting plate, two ends of the cross section of the special-shaped hole 2 are symmetrically arranged with the middle waist portion as a symmetry line, and a connection portion between the two ends and the middle waist portion is an oblique plane structure.
Flat axle section 12 and the cooperation of pegging graft in dysmorphism hole 2 of flat end axle 1, and the length both sides of flat axle section 12 do not rotate contact cooperation with the both ends part in dysmorphism hole.
The utility model discloses at the during operation, insert special-shaped hole 2 with flat axle section 12 of flat axle 1 in, in the same time or the rotatory flat axle of reverse time, flat axle section 12 of flat axle 1 is rotatory to certain angle (X)。) Then it will interfere with the inner wall of the shaped hole 2 (i.e. the connection between the two heads of the shaped hole 2 and the middle waist), as shown in fig. 5. At this time, the flat end shaft 1 cannot rotate, and the purpose of limiting the rotation angle of the flat end shaft is achieved.
The utility model discloses when being applied to manual divide-shut brake, the divide-shut pivot is direct as spacing at axle head and splint dysmorphism locating hole, realizes direct spacing to the divide-shut pivot, has not only reduced unnecessary part, has advantages such as the mechanism is simple moreover, the processing of being convenient for, the location is accurate, practice thrift the cost.
The utility model discloses utilize mutual interference and the angle limit function who forms between flat end shaft and the dysmorphism hole when rotatory, realize directly spacing, reduce unnecessary spare part, reduce cost can apply to any mechanism and rotate spacingly. Meanwhile, the rotation limit can change the size of the rotation angle according to the shape of the special-shaped hole.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (4)
1. The utility model provides a heterotypic hole spacing axle rotation angle structure which characterized in that: the special-shaped shaft comprises a flat end shaft and a special-shaped hole, wherein the flat end shaft consists of a straight shaft section and a flat shaft section, two width side surfaces of the flat shaft section are provided with planes, and two length side surfaces of the flat shaft section are provided with cambered surfaces;
the cross section of the special-shaped hole is of a structure with large two heads and small middle waist, and the two heads of the special-shaped hole are both provided with convex arc structures;
the flat shaft section of flat end shaft and dysmorphism hole grafting cooperation, and the length both sides of flat shaft section and the both ends partial normal contact cooperation in dysmorphism hole respectively.
2. The profiled bore limiting shaft rotation angle structure of claim 1, wherein: two heads of the section of the special-shaped hole are symmetrically arranged by taking the middle waist part as a symmetrical line.
3. The special-shaped hole limiting shaft rotation angle structure according to claim 2, wherein: the connecting parts of the two heads of the special-shaped hole and the middle waist part are of oblique plane structures.
4. The profiled bore limiting shaft rotation angle structure of claim 1, wherein: the length two side surfaces of the flat shaft section are aligned with the outer peripheral surface of the straight shaft section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830165.XU CN209880519U (en) | 2019-06-04 | 2019-06-04 | Special-shaped hole limiting shaft rotation angle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830165.XU CN209880519U (en) | 2019-06-04 | 2019-06-04 | Special-shaped hole limiting shaft rotation angle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209880519U true CN209880519U (en) | 2019-12-31 |
Family
ID=68948310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920830165.XU Active CN209880519U (en) | 2019-06-04 | 2019-06-04 | Special-shaped hole limiting shaft rotation angle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209880519U (en) |
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2019
- 2019-06-04 CN CN201920830165.XU patent/CN209880519U/en active Active
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