CN207305162U - A kind of rotation-limited structure - Google Patents
A kind of rotation-limited structure Download PDFInfo
- Publication number
- CN207305162U CN207305162U CN201721041483.5U CN201721041483U CN207305162U CN 207305162 U CN207305162 U CN 207305162U CN 201721041483 U CN201721041483 U CN 201721041483U CN 207305162 U CN207305162 U CN 207305162U
- Authority
- CN
- China
- Prior art keywords
- mounting blocks
- directive wheel
- mounting
- spring
- tooth bar
- 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 kind of rotation-limited structure, first mounting blocks are fixed on the second mounting blocks and close the installation cavity of the second mounting blocks, shaft is rotatably connected on the second mounting blocks, gear is fixed in shaft, and gear is placed in installation cavity, positioning tooth bar is plugged on the first mounting blocks, and positioning tooth bar is meshed with gear, pull rod is plugged on the first mounting blocks and is fixedly connected with positioning tooth bar, and the first spring pocket is arranged on pull rod；Directive wheel installing plate is articulated with spacing rack, and directive wheel is rotatably connected on directive wheel installing plate, and spacing rack is slidably connected on the second mounting blocks, and directive wheel is contacted on the second mounting blocks, and spacing rack and pinion is meshed.After switch board turns to a certain position, it can be positioned at the position, will not shift phenomenon, simple in structure, easy to manufacture；The rotational angle of switch board is limited, avoids switch board from excessively rotating and causes the part circuit on switch board to twist together, using effect is good.
Description
Technical field：
It the utility model is related to a kind of rotation-limited structure.
Background technology：
Existing switch board is behind operating position needed for turning to, it is impossible to the operating position is fixed on, in use, position is inclined
Need to be readjusted to the operating position after shifting, using there are certain inconvenience, and the rotation of existing switch board is generally logical
Axis is crossed with bearing to realize, the rotational angle of switch board is 360 °, since the control line of switch board needs to draw from cable-through hole, because
When this switch board rotates, if not limiting the rotational angle of switch board, it is easy to cause switch board to turn along a direction
It is dynamic control line to be intertwined, control line can be caused the phenomenon broken occur, therefore, it is necessory to the prior art into
Row is improved to solve the deficiency of the prior art.
Utility model content：
The utility model is to provide a kind of rotation-limited structure to solve the above-mentioned problems of the prior art.
There is technical solution used by the utility model：A kind of rotation-limited structure, including the first mounting blocks, the second installation
Block, bearing, shaft, end cap, gear, positioning tooth bar, the first spring, pull rod, spacing rack, directive wheel, directive wheel installing plate and
Second spring, second mounting blocks are equipped with installation cavity, and the first mounting blocks are fixedly connected on the second mounting blocks and by second
The installation cavity closing of mounting blocks, shaft are rotatably connected on the second mounting blocks by two bearings, and two end cap is fixedly connected on second
On mounting blocks, and two bearings are positioned on the second mounting blocks by two end cap, and gear is fixedly connected in shaft, and gear is placed in peace
In behaveing affectedly, positioning tooth bar is plugged on the first mounting blocks, and positioning tooth bar is meshed with gear, and pull rod is plugged in the first mounting blocks
Above and with positioning tooth bar it is fixedly connected, the first spring pocket is arranged on pull rod, and one end of the first spring is connected to the first mounting blocks
On, the other end is connected on pull rod；The directive wheel installing plate is articulated with spacing rack, and directive wheel is rotatably connected on directive wheel
On installing plate, one end of second spring is connected on spacing rack, and the other end is connected on directive wheel installing plate, and spacing rack is slided
It is dynamic to be connected on the second mounting blocks, and directive wheel is contacted on the second mounting blocks, spacing rack and pinion is meshed.
Further, first mounting blocks are equipped with mounting hole and mounting groove, and the mounting hole and mounting groove connect,
Pull rod is plugged in mounting hole, and positioning tooth bar is plugged in mounting groove.
Further, the mounting groove is rectangular-shaped positioning convex platform to be equipped with the side wall of mounting groove, in positioning tooth bar
Side wall is equipped with the locating slot being adapted with the positioning convex platform.
Further, the mounting hole internal thread is connected with location nut, and one end of the first spring is connected to the first installation
In the location nut of block.
Further, first mounting blocks are equipped with spacing groove portion, are equipped with and spacing groove portion phase on the second mounting blocks
The stage portion of adaptation.
Further, second mounting blocks are equipped with sliding slot, and guide groove is equipped with the side wall of sliding slot, and spacing rack is slided
It is dynamic to be arranged in sliding slot, and directive wheel is contacted in guide groove.
Further, the spacing rack is equipped with rectangular channel, and accommodating groove, the directive wheel installation are equipped with rectangular channel
Plate is articulated with rectangular channel, and when compressing second spring, directive wheel is accommodated in accommodating groove.
The utility model has the advantages that：
1) after switch board turns to a certain position, can be positioned at the position, will not shift phenomenon, structure
Simply, easy to manufacturing；
2) rotational angle of switch board is limited, avoids switch board from excessively rotating and cause the partial line on switch board
Road twists together, and using effect is good.
Brief description of the drawings：
Fig. 1 is the utility model structure chart.
The internal sectional structure schematic diagram of first mounting blocks and the second mounting blocks in Fig. 2 and the utility model.
Fig. 3 is the structure chart of the first mounting blocks in the utility model.
Fig. 4 is structure chart of the positioning tooth bar in the first mounting blocks in the utility model.
Fig. 5 is structure chart of the spacing rack in the second mounting blocks in the utility model.
Fig. 6 is scheme of installation of the directive wheel on spacing rack in the utility model.
Fig. 7 is the structure chart of spacing rack in the utility model.
Embodiment：
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figures 1 to 7, a kind of rotation-limited structure of the utility model, including the first mounting blocks 81, the second mounting blocks
82nd, bearing 83, shaft 84, end cap 85, gear 86, positioning tooth bar 87, the first spring 88, pull rod 89, spacing rack 91, directive wheel
92nd, directive wheel installing plate 93 and second spring 94, are equipped with installation cavity 820 on the second mounting blocks 82, and the first mounting blocks 81 pass through
Screw is fixedly connected on the second mounting blocks 82, and the first mounting blocks 81 close the installation cavity 820 of the second mounting blocks 82.Shaft
84 are rotatably connected on the second mounting blocks 82 by two bearings 83, and two end cap 85 is fixedly connected on the second mounting blocks 82, and two
End cap 85, which corresponds to, is positioned at two bearings 83 on second mounting blocks 82.Gear 86 is fixedly connected in shaft 84, and gear 86 in
In installation cavity 820, positioning tooth bar 87 is plugged on the first mounting blocks 81, and positioning tooth bar 87 is meshed with gear 86.Pull rod 89
It is plugged on the first mounting blocks 81, the first spring 88 is sheathed on pull rod 89, and one end of the first spring 88 is connected to the first peace
Fill on block 81, the other end is connected on pull rod 89.Directive wheel installing plate 93 is articulated with spacing rack 91, and directive wheel 92, which rotates, to be connected
It is connected on directive wheel installing plate 93, one end of second spring 94 is connected on spacing rack 91, and the other end is connected to directive wheel peace
In loading board 93, spacing rack 91 is slidably connected on the second mounting blocks 82, and directive wheel 92 is contacted on the second mounting blocks 82, limit
Position rack 91 is meshed with gear 86.
Mounting hole 811 and mounting groove 812 are equipped with the first mounting blocks 81, mounting hole 811 and mounting groove 812 connect,
Pull rod 89 is plugged in mounting hole 811, and positioning tooth bar 87 is plugged in mounting groove 812.Mounting groove 812 to be rectangular-shaped, for ease of
Preferably positioning tooth bar 87 is positioned in mounting groove 812, positioning convex platform 813 is equipped with the side wall of mounting groove 812, is being positioned
The side wall of rack 87 is equipped with the locating slot (not marked in figure) being adapted with positioning convex platform 813.
For ease of the first spring 88 is connected on the first mounting blocks 81, positioning spiral shell is connected with 811 internal thread of mounting hole
Mother 815, one end of the first spring 88 is connected in the location nut 815 of the first mounting blocks 81.
It is fixedly connected between the first mounting blocks 81 and the second mounting blocks 82 in the utility model by screw, to ensure the
Locating effect between one mounting blocks 81 and the second mounting blocks 82, is equipped with spacing groove portion 818, therewith phase on the first mounting blocks 81
Accordingly, the stage portion being adapted with spacing groove portion 818 is equipped with the second mounting blocks 82.
Sliding slot 821 is equipped with the second mounting blocks 82, guide groove is equipped with the side wall of sliding slot 821, spacing rack 91 is slided
It is dynamic to be arranged in sliding slot 821, and the directive wheel 92 on spacing rack 91 is contacted in guide groove.
Rectangular channel 911 is equipped with spacing rack 91, accommodating groove 912, directive wheel installing plate 93 are equipped with rectangular channel 911
It is articulated with rectangular channel 911, when compressing second spring 94, directive wheel 92 is accommodated in accommodating groove 912.
Second spring 94 is carried out for preferably spacing, circular bosses are equipped with the lower face of directive wheel installing plate 93,
Circular hole is equipped with rectangular channel 911, one end of second spring 94 is placed in circular hole, and the other end is set on circular bosses.
In the sliding slot 821 being placed in spacing rack 91 on second mounting blocks 82, pressure directive wheel installing plate 93, and cause
Directive wheel 92 is accommodated in accommodating groove 912, and then spacing rack 91 is placed in sliding slot 821, unclamps directive wheel installing plate 93,
Under the action of 94 spring force of second spring, directive wheel installing plate 93 is sprung back and so that directive wheel 92 is contacted on 821 inner wall of sliding slot
Guide groove in.
When in use, switch board is installed in shaft 84, when needing to rotate switch board, pulls pull rod 89 so that fixed
Position rack 87 departs from gear 86, and switch board can rotate at this time, and in switch board rotation process, gear 86 drives spacing rack 91
Slide in sliding slot 821 in the second mounting blocks 82, due to the limited length of sliding slot 821, be connected in spacing rack 91
On second mounting blocks 82, switch board cannot be rotated further.After switch board rotates suitable position, releasing lever 89, in the first bullet
Under the action of spring force, positioning tooth bar 87 is closely against on gear 86, is rotated further by switch board at this time, due to positioning tooth bar 87 and gear 86
Intermeshing, and the both ends of positioning tooth bar 87 are contacted in the first mounting blocks 81 on the side wall of mounting groove 812, therefore switch board quilt
Needed for being positioned at position.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, some improvement can also be made on the premise of the utility model principle is not departed from, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (7)
- A kind of 1. rotation-limited structure, it is characterised in that：Including the first mounting blocks (81), the second mounting blocks (82), bearing (83), Shaft (84), end cap (85), gear (86), positioning tooth bar (87), the first spring (88), pull rod (89), spacing rack (91), lead Installation cavity (820) is equipped with to wheel (92), directive wheel installing plate (93) and second spring (94), second mounting blocks (82), First mounting blocks (81) are fixedly connected on the second mounting blocks (82) and close the installation cavity (820) of the second mounting blocks, shaft (84) it is rotatably connected on by two bearings (83) on the second mounting blocks (82), two end cap (85) is fixedly connected on the second mounting blocks (82) on, and two bearings (83) are positioned on the second mounting blocks (82) by two end cap (85), and gear (86) is fixedly connected on shaft (84) on, and gear (86) is placed in installation cavity (820)；Positioning tooth bar (87) is plugged on the first mounting blocks (81), and is positioned Rack (87) is meshed with gear (86), and pull rod (89), which is plugged on the first mounting blocks (81) and is fixed with positioning tooth bar (87), to be connected Connect, the first spring (88) is sheathed on pull rod (89), and one end of the first spring (88) is connected on the first mounting blocks (81), separately One end is connected on pull rod (89)；The directive wheel installing plate (93) is articulated with spacing rack (91), and directive wheel (92) rotates It is connected on directive wheel installing plate (93), one end of second spring (94) is connected on spacing rack (91), and the other end is connected to On directive wheel installing plate (93), spacing rack (91) is slidably connected on the second mounting blocks (82), and directive wheel (92) contacts at On second mounting blocks (82), spacing rack (91) is meshed with gear (86).
- 2. rotation-limited structure as claimed in claim 1, it is characterised in that：First mounting blocks (81) are equipped with mounting hole (811) connect with mounting groove (812), the mounting hole (811) and mounting groove (812), pull rod (89) is plugged in mounting hole (811) in, positioning tooth bar (87) is plugged in mounting groove (812).
- 3. rotation-limited structure as claimed in claim 2, it is characterised in that：The mounting groove (812) is rectangular-shaped, is being installed The side wall of groove (812) is equipped with positioning convex platform (813), is equipped with and the positioning convex platform on the side wall of positioning tooth bar (87) (813) locating slot being adapted.
- 4. rotation-limited structure as claimed in claim 2, it is characterised in that：Mounting hole (811) internal thread is connected with fixed Position nut (815), one end of the first spring (88) is connected in the location nut (815) of the first mounting blocks (81).
- 5. rotation-limited structure as claimed in claim 1, it is characterised in that：First mounting blocks (81) are equipped with limiting slot Portion (818), is equipped with the stage portion being adapted with spacing groove portion (818) on the second mounting blocks (82).
- 6. rotation-limited structure as claimed in claim 1, it is characterised in that：Second mounting blocks (82) are equipped with sliding slot (821), guide groove is equipped with the side wall of sliding slot (821), spacing rack (91), which is slided, to be arranged in sliding slot (821), and directive wheel (92) contact in guide groove.
- 7. rotation-limited structure as claimed in claim 6, it is characterised in that：The spacing rack (91) is equipped with rectangular channel (911), accommodating groove (912) is equipped with rectangular channel (911), the directive wheel installing plate (93) is articulated with rectangular channel (911), When compressing second spring (94), directive wheel (92) is accommodated in accommodating groove (912).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721041483.5U CN207305162U (en) | 2017-08-20 | 2017-08-20 | A kind of rotation-limited structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721041483.5U CN207305162U (en) | 2017-08-20 | 2017-08-20 | A kind of rotation-limited structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207305162U true CN207305162U (en) | 2018-05-01 |
Family
ID=62444857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721041483.5U Expired - Fee Related CN207305162U (en) | 2017-08-20 | 2017-08-20 | A kind of rotation-limited structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207305162U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056620A (en) * | 2019-04-04 | 2019-07-26 | 中国北方车辆研究所 | A kind of fixed device of gear teeth face |
| CN111720498A (en) * | 2020-07-02 | 2020-09-29 | 江苏胜立特机械有限公司 | Small-size planetary gear reducer with large transmission ratio |
| CN112189965A (en) * | 2020-11-11 | 2021-01-08 | 嘉兴皇凯箱包股份有限公司 | Luggage with luggage wheel convenient to turn over |
| CN112793893A (en) * | 2020-12-24 | 2021-05-14 | 唐艳玉 | Agricultural transportation is with carrying stop device with prevent extrudeing damaged function |
-
2017
- 2017-08-20 CN CN201721041483.5U patent/CN207305162U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056620A (en) * | 2019-04-04 | 2019-07-26 | 中国北方车辆研究所 | A kind of fixed device of gear teeth face |
| CN111720498A (en) * | 2020-07-02 | 2020-09-29 | 江苏胜立特机械有限公司 | Small-size planetary gear reducer with large transmission ratio |
| CN112189965A (en) * | 2020-11-11 | 2021-01-08 | 嘉兴皇凯箱包股份有限公司 | Luggage with luggage wheel convenient to turn over |
| CN112793893A (en) * | 2020-12-24 | 2021-05-14 | 唐艳玉 | Agricultural transportation is with carrying stop device with prevent extrudeing damaged function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20180820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |