CN102374373B - Lifting module - Google Patents
Lifting module Download PDFInfo
- Publication number
- CN102374373B CN102374373B CN 201010255824 CN201010255824A CN102374373B CN 102374373 B CN102374373 B CN 102374373B CN 201010255824 CN201010255824 CN 201010255824 CN 201010255824 A CN201010255824 A CN 201010255824A CN 102374373 B CN102374373 B CN 102374373B
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- China
- Prior art keywords
- rod member
- lifting module
- sleeve
- internal thread
- thread
- 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.)
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Abstract
The invention discloses a lifting module, which comprises a first rod piece, a second rod piece and a sleeve, wherein the first rod piece is provided with a limit bolt and a first external thread. The second rod piece is provided with a limit slot and a second external thread. The limit bolt slides in the limit slot along the first axis, so that the first rod piece and the second rod piece relatively translate along the first axis. Both ends of the sleeve are respectively provided with a first internal thread and a second internal thread which are respectively occluded to the first external thread and the second external thread. In the lifting module disclosed by the invention, stepless adjustment can be performed on the distance of a projector relative to a fixed end, and moreover, the lifting module has higher safety.
Description
[technical field]
The invention relates to a kind of lifting module, and particularly relevant for a kind of lifting module for projector.
[background technology]
Projector is a kind of in order to produce the display device of large scale picture.The image-forming principle of projector is to convert the illuminating bundle that the light source module produces to image strip by light valve, image strip is projected on screen or the metope by camera lens again.Along with the progress of shadow casting technique and the reduction of manufacturing cost, the use of projector is expanded to domestic use gradually from commercial use.
With suspension type projector, the lifting module can be set, to adjust projector with respect to the distance of ceiling between ceiling and projector.For instance, the lifting module can comprise the first mutually sheathed rod member and the second rod member, the first rod member and the second rod member all have spaced a plurality of hole, and insert a hole of the hole of the first rod member of phase contraposition and the second rod member with pilot pin and be fixed.When user's wish adjust projector with respect to ceiling apart from the time, need first pilot pin to be pulled down, then adjust the relative position of the first rod member and the second rod member, and then insert another hole of another hole of the first rod member of phase contraposition and the second rod member with pilot pin and be fixed.In above-mentioned adjustment process, if the user does not hold projector really when pilot pin is removed, then projector has the danger that falls.In addition, the distance that this lifting module can be adjusted is decided by the spacing between the hole, and projector is restricted with respect to the adjustment of the distance of ceiling.
TaiWan, China bulletin patent number TWM358063 discloses a kind of lift adjustment mechanism for projector, utilizes the distance between screw rod adjustment projector and the ceiling.In addition, Chinese patent numbering CN1122504 discloses a kind of device that utilizes the threaded adjustment distance.
[summary of the invention]
The present invention proposes a kind of elevating mechanism, can carry out the stepless adjustment and have better security with respect to the distance of stiff end projector.
Other purposes of the present invention and advantage can be further understood from the disclosed technical characterictic of the present invention.
For reaching one of above-mentioned or part or all purposes or other purposes, one of the present invention embodiment provides a kind of lifting module, is used for projector is connected to stiff end, and adjusts projector with respect to the distance of stiff end.The lifting module comprises the first rod member, the second rod member and sleeve.The first rod member has limited bolt and the first external thread.The second rod member has stopper slot and the second external thread, and wherein limited bolt slides in this stopper slot along first axle, and the first rod member and the second rod member are suitable for along the first axle relative translation.The two ends of sleeve have respectively the first internal thread and the second internal thread, and the first external thread is snapped at the first internal thread, and the second external thread is snapped at the second internal thread.When along the first axle turnbarrel, sleeve drives the first rod member by the first internal thread and moves relative to sleeve along the first direction of parallel first axle, and drives the second rod member by the second internal thread and move relative to sleeve along the second direction in contrast to first direction.The lifting module more comprise holder be fixed in the first rod member and the second rod member one of them, and in order to be fixed to stiff end.Mount pad is fixed in wherein another of the first rod member and the second rod member, and in order to fixing projector.
Described lifting module is characterized in that: this first internal thread be right-hand thread and left-hand thread (LHT) one of them, this second internal thread is wherein another of right-hand thread and left-hand thread (LHT).
Described lifting module is characterized in that: this first rod member has a passage that extends along this first axle, and an end of this second rod member is slidedly arranged in this passage.
Described lifting module is characterized in that: this stopper slot is positioned at this passage, and this limited bolt edge is passed this passage and relatively is slidedly arranged on this stopper slot perpendicular to one second axis of this first axle in fact.
Described lifting module is characterized in that: an external diameter of this second rod member equals in fact an internal diameter of this passage.
Described lifting module is characterized in that: a width of this stopper slot equals in fact an external diameter of this limited bolt.
Described lifting module is characterized in that: this sleeve comprises one first intercept and one second intercept, and this first internal thread is positioned at this first intercept, and this second internal thread is positioned at this second intercept, and this first intercept and this second intercept have different internal diameters.
Described lifting module is characterized in that: an outside surface of this sleeve has a decorative pattern, in order to increase the coarse of this outside surface.
Described lifting module is characterized in that: more comprise: a holder, be fixed in this first rod member and this second rod member one of them, and in order to be fixed to this stiff end; And
One mount pad is fixed in wherein another of this first rod member and this second rod member, and in order to fix this projector.
Based on above-mentioned, in the above embodiment of the present invention, the first rod member and the second rod member are used for along the first axle relative translation by the cooperation of limited bolt and stopper slot, and be used for by screw thread is driven by sleeve along first axle mutually near or mutually away from, so that projector is carried out the stepless adjustment with respect to the distance of stiff end.In addition, owing to be in course of adjustment, screw thread is always interlocking pattern, so projector do not have the danger that falls, and has better security.
For above-mentioned feature and advantage of the present invention can be become apparent, a plurality of embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
[description of drawings]
Fig. 1 is the lifting module of one embodiment of the invention and the stereographic map of the projector that is suitable for thereof.
Fig. 2 is the explosive view of the lifting module of Fig. 1.
Fig. 3 is the lifting module of Fig. 1 and the partial sectional view of projector.
Fig. 4 A and Fig. 4 B are the illustrative view of the lifting module of Fig. 3.
50: projector
55: angular adjustment apparatus
60: stiff end
100: the lifting module
110: the first rod members
110a: passage
112: limited bolt
114: the first external threads
120: the second rod members
122: stopper slot
124: the second external threads
130: sleeve
130a: the first intercept
130b: the second intercept
132: the first internal threads
134: the second internal threads
140: holder
150: mount pad
A1, A2: axis
D1, D2: direction
[embodiment]
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to graphic a plurality of embodiment, can clearly present.The direction term of mentioning in following examples, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., only be the direction with reference to annexed drawings.Therefore, the direction term of use is explanation, but not is used for limiting the present invention.
Fig. 1 is the lifting module of one embodiment of the invention and the stereographic map of the projector that is suitable for thereof.Fig. 2 is the explosive view of the lifting module of Fig. 1.Fig. 3 is the lifting module of Fig. 1 and the partial sectional view of projector.Please refer to Fig. 1 to Fig. 3, the lifting module 100 of present embodiment is used for projector 50 is connected to stiff end 60 (such as ceiling), and adjusts projector 50 with respect to the distance of stiff end 60.Lifting module 100 comprises the first rod member 110, the second rod member 120 and sleeve 130, and lifting module 100 more comprises holder 140 and mount pad 150.
The first rod member 110 has limited bolt 112 and the first external thread 114.The second rod member 120 has stopper slot 122 and the second external thread 124, wherein limited bolt 112 along first axle A1 in stopper slot 122 interior slips, and the first rod member 110 and the second rod member 120 are used for along first axle A1 relative translation, and can't relatively rotate along first axle A1.The two ends of sleeve 130 have respectively the first internal thread 132 and the second internal thread 134, the first external threads 114 and are snapped at the first internal thread 132, the second external threads 124 and are snapped at the second internal thread 134.
The mount pad 150 of present embodiment for example is to see through to be connected in projector 50 in order to the angular adjustment apparatus 55 of adjusting projector's 50 angles.Right the present invention is not as limit, and in other embodiments, mount pad 150 also can directly be connected with projector 50.
Fig. 4 A and Fig. 4 B are the illustrative view of the lifting module of Fig. 3.Specifically, when user's wish is adjusted into projector 50 near holder 140, rotatable sleeve 130, making sleeve 130 drive the first rod member 110 by the first internal thread 132 moves relative to sleeve 130 along the direction D2 that is parallel to first axle A1, and drive the second rod member 120 by the second internal thread 134 and move relative to sleeve 130 along the direction D1 in contrast to direction D2, making one-piece construction is state shown in Fig. 4 A by state-transition shown in Figure 3, to shorten the distance between projector 50 and the holder 140.
On the other hand, when user's wish is adjusted into projector 50 away from holder 140, rotatable sleeve 130, making sleeve 130 drive the first rod member 110 by the first internal thread 132 moves relative to sleeve 130 along direction D1, and drive the second rod member 120 by the second internal thread 134 and move relative to sleeve 130 along direction D2, making one-piece construction is state shown in Figure 3 by state-transition shown in Fig. 4 A, to increase the distance between projector 50 and the holder 140.
Because the lifting module 100 of present embodiment is to adjust by the mode of threaded engagement, therefore can reach the effect that stepless is adjusted.In addition, owing to be in course of adjustment, screw thread is always interlocking pattern, so projector 50 do not have the danger that falls, and has better security.The relative position of the first rod member 110 and the second rod member 120 more can be adjusted to the state (shown in Fig. 4 B) between Fig. 3 and Fig. 4 A except being adjusted to shown in Fig. 3 and Fig. 4 A the state.
In the present embodiment, be to be connected in holder 140 with the first screw rod 110, and be connected in mount pad 150 with the second screw rod 120, so in other embodiments, can also be connected in holder 140 by the second screw rod 120, and be connected in mount pad 150 with the first screw rod 110, the present invention is not limited this.
In the present embodiment, the first internal thread 132 of sleeve 130 for example is right-hand thread (Right-hand thread), and the second internal thread 134 for example is left-hand thread (LHT) (Left-hand thread), moves relative to sleeve 130 with the second rod member 120 past opposite directions so that can drive the first rod member 110 during sleeve 130 rotation.Right the present invention is not as limit, in other embodiments, the first internal thread 132 also can be left-hand thread (LHT), and the second internal thread 134 is right-hand thread, moves relative to sleeve 130 with the second rod member 120 past opposite directions and drive the first rod member 110 can make equally sleeve 130 rotation the time.Above-mentioned right-hand thread is defined as, and from axially, when rotating in a clockwise direction, its working direction is away from people person.Above-mentioned left-hand thread (LHT) is defined as, and from axially, as with counter rotation the time, its working direction is away from people person.
Please refer to Fig. 3 and Fig. 4 A, Fig. 4 B, the first rod member 110 of present embodiment has the passage 110a that extends along first axle A1, and an end of the second rod member 120 is slidedly arranged in the passage 110a.The stopper slot 122 (being shown in Fig. 2) of the second rod member 120 is positioned at passage 110a, and limited bolt 112 passes passage 110a and relatively is slidedly arranged in the stopper slot 122 along the second axis A2 perpendicular to first axle A1.Specifically, the external diameter of at least part of structure of the second rod member 120 can be designed to equal the internal diameter of passage 110a, so that the second rod member 120 can stably slide along passage 110a.In addition, the width of stopper slot 122 (being shown in Fig. 2) can be designed to equal in fact the external diameter of limited bolt 112, so that limited bolt 112 can stably and relatively slide along stopper slot 122.
The sleeve 130 of present embodiment comprises the first intercept 130a and the second intercept 130b, and the first internal thread 132 is positioned at the first intercept 130a, and the second internal thread 134 is positioned at the second intercept 130b.The first intercept 130a and the second intercept 130b have different internal diameters, have the first rod member 110 and second rod member 120 of various outer diameter with cooperation.In addition, the outside surface of sleeve 130 can have decorative pattern, makes the outside surface of sleeve 130 more coarse, rotates sleeve 130 by hand in order to the user.Described decorative pattern for example is to get by annular knurl (knurling) processing, and right the present invention can also form described decorative pattern by other appropriate ways not as limit.
In sum, in the above embodiment of the present invention, the first rod member and the second rod member are used for along the first axle relative translation by the cooperation of limited bolt and stopper slot, and by the screw thread of sleeve drives along first axle mutually near or mutually away from, so that projector is carried out the stepless adjustment with respect to the distance of stiff end.In addition, owing to be in course of adjustment, screw thread is always interlocking pattern, so projector do not have the danger that falls, and has better security.In addition, can form decorative pattern in the outside surface of sleeve, make the outside surface of sleeve more coarse, rotate sleeve by hand in order to the user.
The above, only for the present invention's preferred embodiment, when the scope that can not limit with this invention process, the simple equivalence of namely generally being done according to the present patent application claim and invention description content changes and modifies, and all still belongs in the scope that patent of the present invention contains.In addition, arbitrary embodiment of the present invention or claim must not reached whole purposes or advantage or the characteristics that the present invention discloses.
Claims (9)
1. lifting module in order to a projector is connected to a stiff end, and is adjusted this projector with respect to the distance of this stiff end, and this lifting module comprises:
One first rod member has a limited bolt and one first external thread;
One second rod member has a stopper slot and one second external thread, and wherein this limited bolt slides in this stopper slot and with respect to this stopper slot along a first axle, and makes this first rod member and this second rod member along this first axle relative translation; And
One sleeve, the two ends of this sleeve have respectively one first internal thread and one second internal thread, this first external thread is snapped at this first internal thread, this second external thread is snapped at this second internal thread, when rotating this sleeve along this first axle, this sleeve drives this first rod member by this first internal thread and moves with respect to this sleeve along a first direction that is parallel to this first axle, and drives this second rod member by this second internal thread and move relative to this sleeve along the second direction in contrast to this first direction.
2. lifting module as claimed in claim 1 is characterized in that: this first internal thread be right-hand thread and left-hand thread (LHT) one of them, this second internal thread is wherein another of right-hand thread and left-hand thread (LHT).
3. lifting module as claimed in claim 1 is characterized in that: this first rod member has a passage that extends along this first axle, and an end of this second rod member is slidedly arranged in this passage.
4. lifting module as claimed in claim 3, it is characterized in that: this stopper slot is positioned at this passage, and this limited bolt passes this passage and relatively is slidedly arranged on this stopper slot along one second axis perpendicular to this first axle in fact.
5. lifting module as claimed in claim 3, it is characterized in that: an external diameter of this second rod member equals in fact an internal diameter of this passage.
6. lifting module as claimed in claim 1, it is characterized in that: a width of this stopper slot equals in fact an external diameter of this limited bolt.
7. lifting module as claimed in claim 1, it is characterized in that: this sleeve comprises one first intercept and one second intercept, this first internal thread is positioned at this first intercept, and this second internal thread is positioned at this second intercept, and this first intercept and this second intercept have different internal diameters.
8. lifting module as claimed in claim 1, it is characterized in that: an outside surface of this sleeve has a decorative pattern, in order to increase the coarse of this outside surface.
9. lifting module as claimed in claim 1 is characterized in that: more comprise: a holder, be fixed in this first rod member and this second rod member one of them, and in order to be fixed to this stiff end; And
One mount pad is fixed in wherein another of this first rod member and this second rod member, and in order to fix this projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255824 CN102374373B (en) | 2010-08-16 | 2010-08-16 | Lifting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255824 CN102374373B (en) | 2010-08-16 | 2010-08-16 | Lifting module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374373A CN102374373A (en) | 2012-03-14 |
| CN102374373B true CN102374373B (en) | 2013-04-10 |
Family
ID=45793407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010255824 Expired - Fee Related CN102374373B (en) | 2010-08-16 | 2010-08-16 | Lifting module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374373B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896630A (en) * | 2017-04-25 | 2017-06-27 | 安徽庆睿实业有限责任公司 | A kind of intelligent multimedia projecting apparatus |
| CN107676593A (en) * | 2017-10-21 | 2018-02-09 | 佛山卓博斯社机械科技有限公司 | A kind of psychological health education teaching aid special |
| CN108612685B (en) * | 2018-04-24 | 2020-05-01 | 嵊州市恒中机器有限公司 | Manual telescopic interior trimming panel top support device |
| CN108843914A (en) * | 2018-08-28 | 2018-11-20 | 安徽信息工程学院 | A kind of adjustable mounting rack for projector |
| CN109270776B (en) * | 2018-12-10 | 2021-11-12 | 郑州航空工业管理学院 | Teaching projector capable of comprehensively adjusting interest added by playing historical contents |
| CN111232429B (en) * | 2020-01-17 | 2021-07-20 | 哈尔滨工业大学 | Flexible arm protection device of deflection mirror |
| CN111536379B (en) * | 2020-05-15 | 2021-06-25 | 山东理工职业学院 | Accounting economy finance report projection arrangement |
| CN114427560B (en) * | 2021-12-10 | 2023-08-08 | 深圳市联建光电有限公司 | Module fine-tuning |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752112A (en) * | 1996-11-06 | 1998-05-12 | George Paddock, Inc. | Mounting system for body mounted camera equipment |
| CN200950358Y (en) * | 2006-04-26 | 2007-09-19 | 苏志光 | Projector hanger convenient for installation and regulation |
| CN101770152A (en) * | 2010-01-08 | 2010-07-07 | 山东理工大学 | Double-projector hanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010078110A (en) * | 2008-09-29 | 2010-04-08 | Seiko Epson Corp | Leg unit, leg adaptor with the same, electronic apparatus, and projector |
-
2010
- 2010-08-16 CN CN 201010255824 patent/CN102374373B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752112A (en) * | 1996-11-06 | 1998-05-12 | George Paddock, Inc. | Mounting system for body mounted camera equipment |
| CN200950358Y (en) * | 2006-04-26 | 2007-09-19 | 苏志光 | Projector hanger convenient for installation and regulation |
| CN101770152A (en) * | 2010-01-08 | 2010-07-07 | 山东理工大学 | Double-projector hanger |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-78110A 2010.04.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102374373A (en) | 2012-03-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130816 |