CN202600555U - Rotary limit device - Google Patents
Rotary limit device Download PDFInfo
- Publication number
- CN202600555U CN202600555U CN2012202727619U CN201220272761U CN202600555U CN 202600555 U CN202600555 U CN 202600555U CN 2012202727619 U CN2012202727619 U CN 2012202727619U CN 201220272761 U CN201220272761 U CN 201220272761U CN 202600555 U CN202600555 U CN 202600555U
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- CN
- China
- Prior art keywords
- lower disc
- disc
- spring
- mount pin
- spring mount
- 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 relates to a rotary limit device which comprises a lower disc, an upper disc and springs. Inserted pins are arranged on the lower disc, the upper disc fixedly connected with a rotary shaft is arranged above the lower disc, and inserted pin holes with sizes slightly larger than those of the inserted pins are arranged at positions corresponding to the positions of the inserted pins. Spring installation pins are arranged inside the springs in a penetrating mode, one ends of the spring installation pins penetrate through lower portions of bearing bodies to be connected with the lower disc through fasteners, the other ends of the springs are free ends which can penetrate through upper portions of the bearing bodies, and external pressure is exerted on the free ends. The springs are arranged in the bearing bodies in a penetrating mode, one ends are fixedly connected with the lower portions of the bearing bodies, and the other ends are fixedly connected with free ends of the spring installation pins. When the pressure is exerted at the free ends, the stressed spring installation pins move downwards to drive the lower disc and the inserted pins on the lower disc to move downwards, the upper disc and the lower disc are separated, and the upper disc can rotate freely; when the external pressure is reduced or removed, the spring installation pins move upwards to drive the lower disc and the inserted pins on the lower disc to move upwards, the upper disc and the lower disc are meshed, and the upper disc is fixed, accordingly, the purpose of rotation or fixation along with differences of pressure conditions is achieved.
Description
Technical field
The utility model relates to a kind of stop means, especially a kind of rotary limit device.
Background technology
In the prior art; To circular motion mechanism mainly is through on spacing runner, limited block being installed, and is 201010532400.9 patent documentation like application number, perhaps through jump ring is installed on rotation axis; Like application number is 200920003746.2 patent documentation, realizes the rotary stopper function.Though these prior aries have all solved the problem to the restriction of circular motion mechanism that will be converted into the restriction of straight-line motion mechanism, all can not realize with turning axle move up and down and to the circumferential spacing function of whirligig.
Summary of the invention
The technical matters that the utility model will solve provides a kind of rotary limit device of under pressure-bearing or passive state, realizing rotation or stationary state.
For addressing the above problem, the utility model rotary limit device comprises lower disc, goes up disk and spring, and described lower disc is provided with latch; The described disk of going up is fixedly connected with rotation axis, is arranged at the top of lower disc, and is being provided with the pin hole more bigger than latch size with the corresponding position of described latch; Described spring inner is equipped with the spring mount pin, and an end of spring mount pin passes from the bottom of support body, links to each other through securing member with lower disc; Mounting hole on the lower disc is used to cooperate the connection of this securing member; The free end of the other end for passing from support body top is used to bear external pressure, and described spring is arranged in the support body; The one of which end is fixedly connected with the bottom of support body, and the free end of the other end and described spring mount pin is fixedly linked.
When pressure acted on free end, the spring mount pin that pressurized moves downward drove lower disc and moves downward, and the latch that is positioned on the lower disc is in released state with the pin hole that is positioned on the disk, and last disk can rotate freely; When external pressure reduces or cancels; Spring drives the spring mount pin because of resetting and the lower disc that is fixedly connected with the spring mount pin moves upward; The latch that is positioned on the lower disc is meshed with pin hole on being positioned at disk, and last disk can not rotate freely, and is in stationary state.Such rotary limit device has played external device (ED) is in rotation or stationary state with the difference of pressure condition effect.
As a kind of preferred structure of the present invention, the latch on the lower disc is along circumferentially evenly distributing.Adopt such structure can make the conversion between rotation status and the positioning states more smooth and easy.
As a kind of preferred structure of the present invention, the pin hole on the last disk has a plurality of and the circumferential tight distribution in edge.Adopt such structure be for better with lower disc on latch match and reach engagement.
As a kind of preferred structure of the present invention, in the bottom of said support body, the spring mount pin passes the support body place and is provided with sleeve, and the internal diameter of sleeve is more bigger than the external diameter of spring mount pin.Adopt such structure to carry out spacing and the location to the spring mount pin, it is smooth and easy to guarantee that simultaneously the spring mount pin moves up and down.
As a kind of preferred structure of the present invention, be provided with shaft block ring at the free end of said spring mount pin.Shaft block ring mainly plays secure free end, also position-limiting action is played in the upper end of spring simultaneously.
Description of drawings
Fig. 1 is the longitudinal sectional view of rotary limit device of the present invention under engagement.
Fig. 2 is the longitudinal sectional view of rotary limit device of the present invention under released state.
Fig. 3 is the vertical view of lower disc.
Fig. 4 is the cut-open view of lower disc along the M-M direction.
Fig. 5 is the vertical view of last disk.
Fig. 6 is the cut-open view of last disk along the A-A direction.
Fig. 7 is the synoptic diagram of spring.
Among the figure: 1, support body; 2, spring mount pin; 3, spring; 4, securing member; 5, go up disk; 6, lower disc; 7, latch; 8, rotation axis mounting hole; 9, sleeve; 10, shaft block ring; 11, latch slotted eye; 12, mounting hole.
Embodiment
Rotary limit device comprises lower disc 6, goes up disk 5 and spring 3.
The structure of lower disc such as Fig. 3 and shown in Figure 4, Fig. 3 are the vertical view of lower disc, and Fig. 4 is the cut-open view of lower disc along the M-M direction.Lower disc 6 is provided with mounting hole 12 for be provided with the ring texture of two relative outstanding ears of position along the M-M direction in the ear, the purpose that this circular hole is set is: when spring mount pin 2 is fixedly linked with lower disc 6, be convenient to the installation of securing member 4.Along also being provided with two latches 7 that the position is relative on the annulus of M-M direction.
The structure of last disk 5 such as Fig. 5 and shown in Figure 6, Fig. 5 are the vertical view of last disk, and Fig. 6 is the cut-open view of last disk along the A-A direction.Last disk 5 is fixedly connected with the rotation axis that is arranged in rotation axis mounting hole 8; Be circular ring structure, be arranged at the top of lower disc 6, its size matches with lower disc; Be provided with pin hole or latch groove 11 more bigger than latch 7 sizes and that circumferentially evenly gather in the edge in latch 7 corresponding radius with lower disc; The quantity of latch slotted eye 11 is more, arrangement is close more, and the function of realization rotary stopper is unreasonable to be thought, promptly goes up when the disk edge rotates in a circumferential direction to the optional position and can both successfully mesh with the realization of lower disc.The side of last disk 5 is not to be the plane, but is provided with a flat bottomed recess in the position bigger slightly than middle circle pore radius.
The structure of spring 3 is as shown in Figure 7, and Fig. 7 is the synoptic diagram of spring structure.Along the bearing axle 1 of horizontally set, for example square tube is the limiting component of spring among Fig. 1, Fig. 2 and Fig. 7.Spring 3 is arranged in the upper wall of square tube, and its lower end is fixedly connected with the bottom of square tube.Spring 3 inside are equipped with the spring mount pin 2 that can vertically move up and down along square tube; The lower end of spring mount pin 2 passes from the square tube bottom, passes through securing member 4 with lower disc 6, and for example screw links to each other; The free end of upper end for passing from square tube top; Shaft block ring 10 is installed on the free end, and external pressure acts on this free end, and the free end of the upper end of spring 3 and spring mount pin 2 is fixedly linked.Be provided with a sleeve 9 between spring 3 and the spring mount pin 2, the lower end of sleeve 9 is fixedly connected with the lower wall of square tube.
When no external pressure acted on the free end of spring mount pin 2 or puts on spring mount pin 2 free-ended external pressures and cancel gradually, rotary limit device of the present invention was in engagement as shown in Figure 1.At this moment, spring is that former length perhaps returns to former length because of discharging the elastic potential energy that stores under the pressured state gradually.Because the spring upper end is fixedly connected with the upper end of spring mount pin 2; Spring drives spring mount pin 2 because of resetting and the lower disc that is fixedly connected with spring mount pin 2 lower ends moves upward; And then latch slotted eye 11 is meshed on latch 7 on the realization lower disc 6 and the last disk; Last disk 5 is in stationary state, thereby the rotation axis that is fixedly linked with last disk and can not rotate freely with external device (ED) that rotation axis is fixedly linked, also is in stationary state.
When the free end of spring mount pin 2 received the power of downward effect, rotary limit device of the present invention was in released state as shown in Figure 2.At this moment; Spring mount pin 2 moves downward; Because the spring upper end is fixedly connected with the upper end of spring mount pin 2; Spring mount pin free end moves downward the lower disc that drives spring 3 and be fixedly connected with spring mount pin 2 lower ends is moved downward, and then latch slotted eye 11 is separated on latch 7 on the realization lower disc 6 and the last disk, and last disk 5 is in rotatable state; Thereby the rotation axis that is fixedly linked with last disk and can rotate freely with external device (ED) that rotation axis is fixedly linked, also be in rotatable state.
If last disk and external device (ED) are connected to a fixed, then can cooperate external device (ED) to realize the function of rotary stopper.For example, last disk is connected to a fixed with auxiliary seat of standing, and then can reach sitting down and prop seat rotation and fixing purpose under the state at seat.
Claims (5)
1. rotary limit device; It is characterized in that: described rotary limit device comprises lower disc (6), goes up disk (5) and spring (3); Described lower disc (6) is provided with latch (7), and said disk (5) stationkeeping vertically that goes up can rotate freely along the axis; Be arranged at the top of lower disc (6); And be provided with the latch slotted eye (11) more bigger than latch (7) size with the corresponding position of described latch (7), described spring (3) inside is equipped with spring mount pin (2), and the lower end of spring mount pin (2) links to each other through securing member (4) with lower disc (6); The free end of upper end for moving up and down; External pressure acts on this free end, and said spring (3) upper end is fixedly linked with the free end of described spring mount pin (2), and the bottom of the support body (1) that the lower end is outer with being nested in spring mount pin (2) is fixedly linked.
2. a kind of rotary limit device according to claim 1 is characterized in that: the said latch slotted eye of going up on the disk (5) (11) evenly distributes along circumferential.
3. a kind of rotary limit device according to claim 1 and 2 is characterized in that: the said latch slotted eye of going up on the disk (5) (11) has a plurality of and the circumferential tight distribution in edge.
4. a kind of rotary limit device according to claim 1; It is characterized in that: bottom in said support body (1); Spring mount pin (2) passes support body (1) and locates to be provided with sleeve (9), and the internal diameter of said sleeve (9) is more bigger than the external diameter of spring mount pin (2).
5. a kind of rotary limit device according to claim 1 is characterized in that: the free end at described spring mount pin (2) is provided with shaft block ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202727619U CN202600555U (en) | 2012-06-11 | 2012-06-11 | Rotary limit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202727619U CN202600555U (en) | 2012-06-11 | 2012-06-11 | Rotary limit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600555U true CN202600555U (en) | 2012-12-12 |
Family
ID=47318084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202727619U Expired - Fee Related CN202600555U (en) | 2012-06-11 | 2012-06-11 | Rotary limit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076862A (en) * | 2014-05-30 | 2014-10-01 | 石家庄北泰电子有限公司 | Rotation limiting device |
| CN104977307A (en) * | 2014-04-10 | 2015-10-14 | 鞍钢股份有限公司 | Detection apparatus and detection method of surface cleaning effect of cold-rolled sheet |
| CN105366031A (en) * | 2015-12-04 | 2016-03-02 | 中国航天空气动力技术研究院 | Winglet device with adjustable angle |
-
2012
- 2012-06-11 CN CN2012202727619U patent/CN202600555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977307A (en) * | 2014-04-10 | 2015-10-14 | 鞍钢股份有限公司 | Detection apparatus and detection method of surface cleaning effect of cold-rolled sheet |
| CN104076862A (en) * | 2014-05-30 | 2014-10-01 | 石家庄北泰电子有限公司 | Rotation limiting device |
| CN105366031A (en) * | 2015-12-04 | 2016-03-02 | 中国航天空气动力技术研究院 | Winglet device with adjustable angle |
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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 |
Granted publication date: 20121212 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |