CN201953812U - Rotating position limiter - Google Patents
Rotating position limiter Download PDFInfo
- Publication number
- CN201953812U CN201953812U CN2010206260442U CN201020626044U CN201953812U CN 201953812 U CN201953812 U CN 201953812U CN 2010206260442 U CN2010206260442 U CN 2010206260442U CN 201020626044 U CN201020626044 U CN 201020626044U CN 201953812 U CN201953812 U CN 201953812U
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- Prior art keywords
- main shaft
- limit device
- rotating limit
- fixing frame
- cross
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Abstract
The utility model discloses a rotating position limiter, which comprises a fixing frame and at least one main sleeve, wherein the main sleeve is provided with an axial through accommodating cavity, the cross section of the accommodating cavity is in a square shape, elastic rods are respectively arranged at each edge corner part of the accommodating cavity in the axial direction, a main shaft penetrates through the accommodating cavity, both ends of the main shaft are fixed on the fixing frame, the cross section of the main shaft is in a square shape, an included angle is formed between the diagonal line of the cross section of the accommodating cavity and the diagonal line of the cross section of the main shaft, and the elastic rods are clamped between the main shaft and the side wall of the side corner part of the accommodating cavity. The rotating position limiter has the advantages that the service life is prolonged, the use cost is reduced, and the safety of an instrument is improved.
Description
Technical field
The utility model relates to a kind of rotating limit device, relates in particular to a kind of being used for come and go to rotate or swing spacing rotating limit device under various indoor and outdoor surroundingses, is particularly suitable for the indoor and outdoor fitness equipments and uses.
Background technique
Along with the raising of people's living standard, people more and more receive publicity to the health problem of self, and increasing people utilizes the fitness equipments of indoor and outdoor to take exercises.Therefore, no matter be, still at outdoor park, the community various fitness equipments that all are seen everywhere in indoor gymnasium.
At present, all kinds of fitness equipments are all realized back and forth rotating or the swing function by bearing or axle sleeve.But said structure has the some shortcomings part:
1, existing bearing or axle sleeve in use wear and tear easily, therefore necessary periodic maintenance and replacing, and its working life is shorter, and only be 2 to 4 years working life usually, expire and just need change equipment again, cause increasing considerably of user cost, cause great economic loss.
2, existing bearing or axle sleeve do not possess spacing function usually, Security in order to guarantee to use, the rotation or the pendulum angle that need match with other parts (as collision block etc.) to equipment carry out spacing, the wearing and tearing of parts have so just been increased, and, in use, limit position part lost efficacy because of wearing and tearing or colliding easily, and this has just brought bigger potential safety hazard.
This shows that above-mentioned existing structure all exists certain deficiency, demand urgently further being improved.How can increase the service life, to reduce user cost, the Security that can improve equipment has again become damping device and has made one of the difficult point in field.
Because the shortcoming that above-mentioned existing structure exists, the design people is based on being engaged in fitness equipments design for many years and field experience and professional knowledge, actively improved and innovated, in the hope of realizing a kind of user cost that can increase the service life, reduce, can improve the rotating limit device of the Security of equipment again.
The model utility content
The purpose of this utility model provides a kind of user cost that can increase the service life, reduce, and can improve the rotating limit device of the Security of equipment again.
For achieving the above object, a kind of rotating limit device that the utility model proposes, comprise fixing frame and at least one main cover, described main cover offers the holding cavity of axial perforation, the cross section of this holding cavity is square, each edge at described holding cavity is equiped with flexible rod vertically respectively, one main shaft is through described holding cavity, the two ends of described main shaft are fixed on the described fixing frame, the cross section of described main shaft is square, have angle between the diagonal of described holding cavity cross section and the diagonal of described main axis cross section, described flexible rod is clamped between the sidewall and described main shaft of described holding cavity edge.
Aforesaid rotating limit device, wherein, two ends at described main cover are arranged with closure assemblies respectively, described closure assemblies comprises that fixed cover is loaded on the loop bracket of described main sleeve end portion, be provided with annular ball support in the outside of described carriage, circumferentially offer a plurality of circular holes in described ball support upper edge, on described circular hole, be equiped with ball respectively; The outside at described ball support is provided with end cap, the central authorities of described end cap offer the installation through hole, described main shaft is arranged in described carriage, ball support and end cap, and fixedly connected with described end cap, described carriage and described end cap offer ring track respectively towards the surface of described ball support, and described ring track engages with described ball.
Aforesaid rotating limit device wherein, is respectively equipped with Anti-theft cap at the two ends of described main shaft, and described Anti-theft cap is fixedlyed connected with described main shaft by screw.
Aforesaid rotating limit device, wherein, the outer surface of described main cover is cylindric.
Aforesaid rotating limit device, wherein, described flexible rod is a rubber rod.
Aforesaid rotating limit device, wherein, fixed cover is equipped with collar bush on the outer wall of described main shaft, and the outer wall of described collar bush contacts with described flexible rod.
Aforesaid rotating limit device, wherein, described fixing frame is the U-shaped fixing frame, offers corresponding through hole on the two side of described U-shaped fixing frame, described main shaft is arranged in the described through hole.
Aforesaid rotating limit device, wherein, described fixing frame is two stacked U-shaped fixing frames, and the bottom of described two U-shaped fixing frames is connected, and the main shaft on the described two U-shaped fixing frames is vertical mutually and is provided with.
Aforesaid rotating limit device, wherein, described fixing frame is made of two connecting sheets that are arranged side by side, and correspondence offers at least two through holes on each described connecting sheet, and described main shaft is arranged in the described through hole.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model adopts the structure that flexible rod is set between main cover and main shaft, main cover can either relatively rotate with main shaft, be subjected to the restriction of flexible rod again, bearing of the prior art or axle sleeve slewing gear have been substituted, overcome the shortcoming that under various indoor and outdoor surroundingses, needs bearing or axle sleeve periodic maintenance or replacing, poor stability, had wear-resistant, long service life, safe advantage;
2, therefore the utility model has saved manufacturing cost and use cost because to compare working life longer with existing bearing or axle sleeve slewing gear.
3, the utility model is applicable to the various indoor and outdoor surroundingses in ± 70 ° of scopes, has advantage applied widely.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Figure 1A is the utility model rotating limit device embodiment one a structural representation;
Figure 1B is the utility model rotating limit device embodiment one a cross-sectional view;
Fig. 1 C is that the A-A of Figure 1B is to cross-sectional view;
Fig. 1 D is the utility model rotating limit device embodiment one a part decomposition texture schematic representation;
Fig. 2 A is the utility model rotating limit device embodiment two a structural representation;
Fig. 2 B is the utility model rotating limit device embodiment two a cross-sectional view;
Fig. 3 A is the utility model rotating limit device embodiment three a structural representation;
Fig. 3 B is the utility model rotating limit device embodiment three a cross-sectional view;
Fig. 3 C is that the B-B of Fig. 3 B is to cross-sectional view;
Fig. 3 D is the structural representation of the utility model rotating limit device embodiment three connecting sheet.
Description of reference numerals:
1-master's cover; The 11-holding cavity; The 2-main shaft; The 21-screw; The 22-collar bush; The 3-fixing frame; The 31-through hole; The 32-connecting sheet; The 4-flexible rod; The 5-carriage; 6-ball support; The 61-circular hole; The 7-ball; The 8-end cap; 81-installs through hole; The 9-ring track; The 10-Anti-theft cap.
Embodiment
Understand for technical characteristics of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
Embodiment one:
Please refer to Figure 1A to Fig. 1 D, be respectively the utility model rotating limit device embodiment one structural representation; Cross-sectional view; The A-A of Figure 1B is to cross-sectional view; And part decomposition texture schematic representation.
As shown in the figure, the rotating limit device that the utility model proposes, comprise fixing frame 3 and main cover 1, described main cover 1 offers the holding cavity 11 of axial perforation, the cross section of this holding cavity 11 is square, each edge at described holding cavity 11 is equiped with flexible rod 4 vertically respectively, and flexible rod 4 can be compressed at the effect lower edge of external force radial elastic.Cross section is foursquare main shaft 2 and can be inserted in vertically just in the regional space that is surrounded by four flexible rod 4 in the described holding cavity 11, and the two ends of described main shaft 2 are fixed on the described fixing frame 3.Wherein, shown in Fig. 1 C, cornerwise angle β of the diagonal of described holding cavity 11 cross sections and described main shaft 2 cross sections is 45 degree, and promptly holding cavity 11 is 45 degree with the phase difference of main shaft 2 projection on cross section.Thereby described flexible rod 4 is clamped between the sidewall and described main shaft 2 outer walls of described holding cavity 11 edges, promptly the outer wall of the non-edges and corners of the two side of flexible rod 4 and holding cavity 11 edges and main shaft 2 connects.When external force acted on main cover 1 or main shaft 2, flexible rod 4 was squeezed and radially shrinks, and external force drives main cover 1 and relatively rotates with main shaft 2, and 4 pairs of main covers 1 of flexible rod have reaction force with main shaft 2 simultaneously, thus the damping function of playing.When turning an angle, main cover 1 and main shaft 2 are in following the stopping operating of flexible rod 4 damping forces, and 4 pairs of main covers 1 of flexible rod play the effect of restriction rotation angle with main shaft 2, so have improved the Security when using.Because the utility model adopts the structure that flexible rod 4 is set between main cover 1 and main shaft 2, main cover 1 can either relatively rotate with main shaft 2, can be subjected to the restriction of flexible rod again, bearing of the prior art or axle sleeve slewing gear have been substituted, overcome the shortcoming that under various indoor and outdoor surroundingses, needs bearing or axle sleeve periodic maintenance or replacing, poor stability, had wear-resistant, long service life, safe advantage; And the utility model has been saved manufacturing cost and use cost.But the shape of cross section of main cover 1 of the present utility model and main shaft 2 also is not limited to square, also can adopt regular pentagon, regular hexagon or other regular polygons, as long as the diagonal of described holding cavity 11 cross sections of assurance has certain angle with the diagonal of described main shaft 2 cross sections and does not overlap, thereby flexible rod 4 is clamped between holding cavity 11 and the main shaft 2, main shaft 2 can relatively rotate with main cover 1, flexible rod 4 plays the effect of damping when rotating, and the rotation angle between restriction main shaft 2 and the main cover 1 gets final product.
Further, shown in Figure 1B, 1D, two ends at described main cover 1 are arranged with closure assemblies respectively, described closure assemblies comprises that fixed cover is loaded on the loop bracket 5 of described main cover 1 end, be provided with annular ball support 6 in the outside of described carriage 5, circumferentially offer a plurality of circular holes 61 in described ball support 6 upper edges, on described circular hole 61, be equiped with ball 7 respectively; Be provided with end cap 8 in the outside of described ball support 6, the central authorities of described end cap 8 offer installs through hole 81, through hole 81 is installed is square hole and suitable with square main shaft 2; Described main shaft 2 is arranged in described carriage 5, ball support 6 and end cap 8, and, through hole 81 is connected with described end cap 8 by being installed, described carriage 5 and described end cap 8 offer ring track 9 respectively towards the surface of described ball support 6, and described ring track 9 matches with described ball 7.When main cover 1 relatively rotated with main shaft 2, ball 7 slided with the ring track 9 of ball support along carriage 5 and end cap 8, thereby had reduced the wearing and tearing between the parts, had prolonged working life.
Further, shown in Fig. 1 D, in the present embodiment, the outer surface of described main cover 1 is cylindric, so that connect other parts of fitness equipments.But the utility model also is not limited thereto, and the outer surface of main cover 1 can also adopt polygon prism shape or other suitable shape according to actual needs.
Further, shown in Figure 1A, 1B, be covered with Anti-theft cap 10 respectively at the two ends of described main shaft 2, described Anti-theft cap 10 is fixedlyed connected with described main shaft 2 by screw 21, thereby plays antitheft and prevent that main shaft 2 is by the effect of deviating from the holding cavity 11.The concrete structure of Anti-theft cap 10 is a known technology, is not described in detail at this.
Further, in the present embodiment, described flexible rod 4 is a rubber rod.But the utility model also is not limited thereto, and also can adopt the barred body of other elastic material, as long as guarantee that flexible rod can produce elastic compression when pressurized.The elastic performance of flexible rod 4 can require to select according to different damping forces, as long as guarantee that when main cover 1 relatively rotated with main shaft 2, the effect of playing the restriction rotation angle got final product.
Further, shown in Fig. 1 D, be set with collar bush 22 on the outer wall of described main shaft 2, collar bush 22 is suitable with the shape of main shaft 2; After installation, the inwall of described collar bush 22 engages with the outer wall of described main shaft 2, make collar bush 22 and main shaft 2 be combined as a whole, the outer wall of described collar bush 22 contacts with described flexible rod 4, collar bush 22 can rotate with respect to main cover 1 with main shaft 2, play and be convenient to install, and further reduced the wearing and tearing of main shaft 2, prolonged working life.
In the present embodiment, described fixing frame 3 is the U-shaped fixing frame, offers corresponding through hole 31 on the two side of described U-shaped fixing frame, and through hole 31 is a square hole, its size matches with the size of the cross section of main shaft, makes described main shaft 2 can be arranged in the described through hole 31.
Embodiment two:
Please refer to Fig. 2 A, 2B, be the utility model embodiment two structural representation and cross-sectional view.Identical with embodiment one in the present embodiment parts adopt identical label.
As shown in the figure, in the present embodiment, described fixing frame 3 is two stacked U-shaped fixing frames, and the bottom of described two U-shaped fixing frames is connected, and the main shaft 2 on the described two U-shaped fixing frames is vertical mutually and is provided with.Make the utility model rotating limit device to rotate like this, play the effect of universal joint to a plurality of directions.
Other structures, working principle and the beneficial effect of present embodiment are identical with embodiment one, do not repeat them here.
Embodiment three:
Please refer to Fig. 3 A to 3D, be the utility model embodiment three structural representation; Cross-sectional view; The B-B of Fig. 3 B is to cross-sectional view; The structural representation of connecting sheet.Identical with embodiment one in the present embodiment parts adopt identical label.
As shown in the figure, in the present embodiment, described fixing frame 3 is made of two connecting sheets that are arranged side by side 32, correspondence offers two through holes 31 on each described connecting sheet 32, described main shaft 2 is arranged in the described through hole 31, thereby two groups of master's covers and main shaft structure are cascaded, play the effect that increases the rotating limit device rotation angle.Between two connecting sheets 32 of the present utility model, also can be arranged side by side 3 groups, 4 groups or more groups of masters cover and main shaft structure, thereby realize to organize the effect of main cover and main shaft structure series connection use more.
Other structures, working principle and the beneficial effect of present embodiment are identical with embodiment one, do not repeat them here.
The utility model adopts following steps when assembling:
Step 1: 4 flexible rod are inserted in the main cover;
Step 2: collar bush is mounted in the main cover, and collar bush is enclosed within the angles that projected phase on the cross section has 45 degree with main, between the outer wall that flexible rod is held on collar bush and the main sidewall that overlaps edge;
Step 3: carriage is placed main stepped part of overlapping two ends, ball is assembled on the ball support, and places on the ring track of carriage, end cap is fastened on the carriage again, the ring track of end cap cooperates installation with ball;
Step 4: the main cover after will assembling, place on the fixing frame and cooperates with through hole contraposition on the fixing frame, again main shaft is threaded onto in the interior collar bush of through hole and main cover; Then put on the two ends that Anti-theft cap is screwed into main shaft, last fastening Anti-theft cap with screw.
The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (9)
1. rotating limit device, it is characterized in that, described rotating limit device comprises fixing frame and at least one main cover, described main cover offers the holding cavity of axial perforation, the cross section of this holding cavity is square, each edge at described holding cavity is equiped with flexible rod vertically respectively, one main shaft is through described holding cavity, the two ends of described main shaft are fixed on the described fixing frame, the cross section of described main shaft is square, have angle between the diagonal of described holding cavity cross section and the diagonal of described main axis cross section, described flexible rod is clamped between the sidewall and described main shaft of described holding cavity edge.
2. rotating limit device as claimed in claim 1, it is characterized in that, two ends at described main cover are arranged with closure assemblies respectively, described closure assemblies comprises that fixed cover is loaded on the loop bracket of described main sleeve end portion, be provided with annular ball support in the outside of described carriage, circumferentially offer a plurality of circular holes in described ball support upper edge, on described circular hole, be equiped with ball respectively; The outside at described ball support is provided with end cap, the central authorities of described end cap offer the installation through hole, described main shaft is arranged in described carriage, ball support and end cap, and fixedly connected with described end cap, described carriage and described end cap offer ring track respectively towards the surface of described ball support, and described ring track engages with described ball.
3. rotating limit device as claimed in claim 2 is characterized in that, is respectively equipped with Anti-theft cap at the two ends of described main shaft, and described Anti-theft cap is fixedlyed connected with described main shaft by screw.
4. rotating limit device as claimed in claim 1 is characterized in that, the outer surface of described main cover is cylindric.
5. rotating limit device as claimed in claim 1 is characterized in that, described flexible rod is a rubber rod.
6. rotating limit device as claimed in claim 1 is characterized in that fixed cover is equipped with collar bush on the outer wall of described main shaft, and the outer wall of described collar bush contacts with described flexible rod.
7. as each described rotating limit device in the claim 1 to 6, it is characterized in that described fixing frame is the U-shaped fixing frame, offer corresponding through hole on the two side of described U-shaped fixing frame, described main shaft is arranged in the described through hole.
8. as each described rotating limit device in the claim 1 to 6, it is characterized in that described fixing frame is two stacked U-shaped fixing frames, the bottom of described two U-shaped fixing frames is connected, and the main shaft on the described two U-shaped fixing frames is vertical mutually and is provided with.
9. as each described rotating limit device in the claim 1 to 6, it is characterized in that described fixing frame is made of two connecting sheets that are arranged side by side, correspondence offers at least two through holes on each described connecting sheet, and described main shaft is arranged in the described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206260442U CN201953812U (en) | 2010-11-24 | 2010-11-24 | Rotating position limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206260442U CN201953812U (en) | 2010-11-24 | 2010-11-24 | Rotating position limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953812U true CN201953812U (en) | 2011-08-31 |
Family
ID=44497922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206260442U Expired - Fee Related CN201953812U (en) | 2010-11-24 | 2010-11-24 | Rotating position limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573807A (en) * | 2012-07-31 | 2014-02-12 | 常州工学院 | Radial array type elastic torsion bearing |
| CN110667483A (en) * | 2019-09-29 | 2020-01-10 | 闻泰通讯股份有限公司 | Camera mechanism and vehicle event data recorder |
-
2010
- 2010-11-24 CN CN2010206260442U patent/CN201953812U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573807A (en) * | 2012-07-31 | 2014-02-12 | 常州工学院 | Radial array type elastic torsion bearing |
| CN103573807B (en) * | 2012-07-31 | 2016-05-25 | 常州工学院 | The supporting of radial arrays formula elastic torsion |
| CN110667483A (en) * | 2019-09-29 | 2020-01-10 | 闻泰通讯股份有限公司 | Camera mechanism and vehicle event data recorder |
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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: 20110831 Termination date: 20171124 |