CN103032658A - Locking mechanism for rear projection screen frame - Google Patents
Locking mechanism for rear projection screen frame Download PDFInfo
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- CN103032658A CN103032658A CN2012105654120A CN201210565412A CN103032658A CN 103032658 A CN103032658 A CN 103032658A CN 2012105654120 A CN2012105654120 A CN 2012105654120A CN 201210565412 A CN201210565412 A CN 201210565412A CN 103032658 A CN103032658 A CN 103032658A
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- locking
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- rear projection
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Abstract
The invention relates to the field of rear projection screen mounting, in particular to a locking mechanism for a rear projection screen frame. The locking mechanism comprises a supporting structure and a screen-hanging structure, the supporting structure is fixed on a rear projection screen case by a screen-sliding structure on the rear projection screen case, and the screen-hanging structure can be fixed on the screen frame; the supporting structure comprises a supporting part, a locking structure, hangers and a through hole, the supporting part can be fixed on the screen-sliding structure, the locking structure is mounted on the supporting part, the hangers are arranged on the supporting part, and the through hole is arranged on the supporting part and located over the hangers; the screen-hanging structure is provided with hanging holes which can be fastened with the hangers, and the supporting structure can be fixedly connected with the screen-hanging structure through the hangers and the hanging holes; one end of the locking structure is heavier than the other end of the locking structure, and when the heavy end of the locking structure is pushed, the light end of the locking structure can run through or get out of the through hole. The structure of the screen frame is simple, locking and unlocking steps are simple, the difficulty of operation is decreased, and operators can be liberated from complex unlocking and locking operations.
Description
Technical field
The present invention relates to the rear projection screen installing area, more specifically, relate to a kind of locking framework for the rear projection screen framework.
Background technique
The screen of front maintenance type large screen back projection unit generally is to be affiliated on mechanism's part of casing at present, and by a series of locking and system for unlocking screen is fixed on mechanism's part.But also there are some shortcomings in existing locking and system for unlocking:
The one, locking framework is too complicated, and is very difficult when causing the screen dismounting;
The 2nd, existing large screen back projection unit screen generally all is that multi-layer spliced gets up, so that for the screen system more than two layers, operator need that two people are above to be cooperated, and utilize scaffold or other instruments, reach two layers height dismounting screen again, because screen frame is heavier, operator's center of gravity is higher during operation, and release mechanism is too complicated, and it is very inconvenient to operate, need expend a large amount of muscle power, also reduce safety coefficient simultaneously.
The 3rd, the locking framework design is too complicated, also brings more man-hour for screen assembling and dismounting, and operator need to spend more time and carry out disassemble and assemble work, and efficient is not high, and cost of labor is high.
The 4th, because locking framework is too complicated, part is many, and cost is high.
Summary of the invention
Technical problem to be solved by this invention is that the screen frame locking framework is too complicated, and screen frame dismounting difficulty provides a kind of simple in structure, and the screen frame dismounting simply is used for the locking framework of rear projection screen framework.
For solving the problems of the technologies described above, technological scheme of the present invention is as follows:
A kind of locking framework for the rear projection screen framework comprises by the screen sliding motion structure on the back projection box body and is fixed in the supporting structure on the back projection box body and is used for being fixed on screen suspension structures on the screen frame;
Described supporting structure comprises be used to being fixed on supporting element on the screen sliding motion structure, being installed in locking structure on the supporting element, being arranged on the hook on the supporting element and being arranged on the supporting element and being positioned at the through hole of hook top;
Described screen suspension structures is provided with the suppending hole that is stuck on the described hook, and described supporting structure and screen suspension structures realize being connected and fixed by hook and suppending hole;
The weight of described locking structure one end is greater than the other end, the little end of its weight is passed or breaks away from described through hole by stirring the large end of its weight.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
(1) the present invention is fixed on supporting element on the screen sliding motion structure, the screen suspension structures is fixed on the screen frame, by at supporting element hook being set, on the screen suspension structures suppending hole is set, the suppending hole button hung with hook is upper realize being connected of supporting element and screen suspension structures, thus being connected of realization back projection box body and screen frame.Thisly be affiliated to convenience simple in structure, as long as suppending hole is aimed at hook, operate very simply, work difficulty is low.
(2) the present invention also arranges simple locking structure on supporting element, arrange at supporting element and to match with locking structure and place through hole above the hook, utilize the characteristic of locking structure two ends weight inequality to make it under nature, pass through hole the screen suspension structures is locked in the hook, prevent that the screen suspension structures from deviating from; When needing the dismounting screen frame, only need upwards to stir simply the large end of locking structure weight and make its lightweight end detach through hole, form released state, easily the screen suspension structures is taken out from hook, realize the dismounting of screen frame.Locking structure of the present invention is simple, release and lock operation are simple, greatly simplified operating procedure, reduced the difficulty of screen frame dismounting, operator are freed from loaded down with trivial details release and lock operation, particularly for the system more than two layers, simpler locking structure can reduce operator's work difficulty greatly, improved the safety coefficient of operator's work, reduced because screen frame is overweight dismounting screen time course and cause the tired and potential safety hazard that causes of operator.
Description of drawings
Fig. 1 is the structural representation of a kind of locking framework specific embodiment for the rear projection screen framework of the present invention.
Fig. 2 is the partial enlarged drawing of the A part of Fig. 1.
Fig. 3 is a kind of schematic representation that is in released state for the locking framework specific embodiment locking structure of rear projection screen framework of the present invention.
Fig. 4 is a kind of schematic representation that is in released state for the locking framework specific embodiment locking structure of rear projection screen framework of the present invention.
Fig. 5 is that a kind of locking framework specific embodiment suppending hole for the rear projection screen framework of the present invention is hung on the schematic representation in the hook.
Fig. 6 is that a kind of locking framework specific embodiment locking structure for the rear projection screen framework of the present invention is with the schematic representation of screen frame locking.
Fig. 7 is the explosive view of a kind of locking framework specific embodiment supporting structure for the rear projection screen framework of the present invention.
Fig. 8 is the erection drawing of a kind of locking framework specific embodiment supporting structure for the rear projection screen framework of the present invention.
Fig. 9 is the erection drawing of a kind of locking framework specific embodiment supporting structure for the rear projection screen framework of the present invention.
Embodiment
Below in conjunction with drawings and Examples technological scheme of the present invention is described further.
Embodiment 1
Referring to Fig. 1, be the structural representation of a kind of locking framework specific embodiment for the rear projection screen framework of the present invention, Fig. 2 is its partial enlarged drawing.As shown in Figure 1, existing rear projection screen framework generally comprises back projection box body 10 and screen frame 20, and screen is installed on the screen frame 20; In order to realize the front housekeeping operation of screen, screen sliding motion structure 11 also is set on the existing rear projection screen framework realizes being connected of back projection box body 10 and screen frame 20, screen frame 20 is realized pulling out and resetting by the slip of screen sliding motion structure 11 on back projection box body 10, thereby can carry out the front housekeeping operation of screen.
As shown in Figure 1, a kind of locking structure for the rear projection screen framework of the specific embodiment of the invention, comprise supporting structure 30 and screen suspension structures 40, supporting structure 30 is fixed on the back projection box body 10 by the screen sliding motion structure 11 on the back projection box body 10, and screen suspension structures 40 directly is fixed on the screen frame 20.As shown in Figure 2, this supporting structure 30 comprises be used to being fixed on supporting element 31 on the screen sliding motion structure 11, being installed in locking structure 32 on the supporting element 31, being arranged on the hook 33 on the supporting element 31 and being arranged on the supporting element 31 and being positioned at the through hole 34 of hook 33 tops.
As shown in Figure 2, this screen suspension structures 40 is provided with and is stuck in the suppending hole 41 of hook on 33, supporting structure 30 and screen suspension structures 40 by link up with 33 and suppending hole 41 realize being connected and fixed.
As shown in Figure 2, the weight of locking structure 32 1 ends is greater than the other end, the little end of its weight is passed or breaks away from through hole 41 on the supporting structure 30 by stirring the large end of its weight.
Working principle below in conjunction with Fig. 3-6 pair this specific embodiment describes: before the screen frame 20 carry back projection box bodies 10, as shown in Figure 3, upwards stirring the large end of locking structure 32 weight spins off its lightweight end from the through hole 34 of supporting structure 30, link up with 33 and be in released state this moment, as shown in Figure 4.To just screen suspension structures 40 can be hung on the hook 33 of supporting structure 30 by the suppending hole 41 on it after locking structure 32 releases, thereby realize with being connected and fixed of screen frame 20 and back projection box body 10, as shown in Figure 5.After screen frame 20 hung up properly, locking structure 33 stirred downwards make it get back to original state, its lightweight end passes through hole 34, as shown in Figure 6.Because locking structure 32 two ends weight are uneven, can form self-locking state under action of gravitation, this state keeps always, and therefore screen suspension structures 40 is locked on the hook 33, be subject to External Force Acting and also can not deviate from, thereby screen frame 20 firmly is locked on the back projection box body 10.When needs are pulled down screen frame 20, need manually-operable locking structure 32, with its release, screen frame 20 could be taken out from linking up with 33.Screen frame hang of the present invention and lock mode are all very simple, and can realize fully that screen reliably is affiliated on mechanism's part, maintenance back projection shows reliable the installation and disassembled simply of screen of product before realizing, greatly simplified operating procedure, reduced operation easier, operator are freed from loaded down with trivial details release and lock operation, particularly for the system more than two layers, simpler locking structure can reduce operator's work difficulty greatly, improved the safety coefficient of operator's work, reduced because screen frame is overweight dismounting screen time course and cause the tired and potential safety hazard that causes of operator.
In order to make locking structure 32 can realize auto-lock function under nature, in an embodiment, locking structure 32 adopts link 321 and locking plate 322 to realize.Particularly, as shown in Figure 7, this locking structure 32 comprises the weight of link 321 and an end greater than the locking plate 322 of the other end, and these locking plate 322 medium positions are provided with tapped hole 3221, and locking plate 322 is installed on the supporting element 31 by link 321 and tapped hole 3221.One preferred embodiment in, in order to realize the characteristic of locking plate 322 two ends weight inequalities, the structure of locking plate 322 can realize in the following way: locking plate 322 1 ends are boss 3222, the other end is boss extension 3223, these boss extension 3223 weight are less than boss 3222, and tapped hole 3221 is arranged on the jointing place of boss 3222 and boss extension 3223.Therefore, after locking plate 322 is fixed on the supporting element 31, because the weight of boss 3222 is greater than the weight of boss extension 3223, be subject to action of gravitation, boss 3222 is sagging, lifts the nature of the spacing maintenance of top shown in Fig. 8 and 9 of passing through hole 34 and utilizing through hole 34 on the boss extension 3223.In a preferred mode of execution, for the self-locking state that guarantees locking structure can firmly be realized lock function to screen suspension structures 40, it is not skidded off downwards from linking up with 33, the length that boss extension 3223 is set makes it greater than the thickness of supporting element 31, firmly with 40 lockings of screen suspension structures.
In an embodiment, the supporting element 31 on the supporting structure 30 can adopt the L-type member to realize.Particularly, as shown in Figure 7, supporting element 31 is the first L-type member, hook 33 and through hole 34 are set on the one end 311, locking mounting hole 313 is set on the other end 312, and locking structure 32 is installed in the formed semi-open space of two end faces of the first L-type member by its link 321 and locking mounting hole 313.One preferred embodiment in, in order to make locking structure 32 under nature, can utilize the property preservation level of its two ends weight inequality, can realize more securely lock function, when this locking mounting hole 313 is set, its position is corresponding with through hole 34 topmost position on the supporting element 31, so that locking structure 32 1 ends when passing through hole 34 its upper side near the through hole top, thereby utilize the position-limiting action of through hole 34 tops to keep level.
In an embodiment, screen suspension structures 40 can realize in the following way: as shown in Figure 2, screen suspension structures 40 comprises the second L-type member, and an end face of described the second L-type member is fixed on the screen frame 20, and suppending hole 41 is set on its other end.Certainly, in the function situation that can realize screen frame 20 hung on the hook 33, the implementation of screen suspension structures 40 should not be limited to this structure.
In addition, according to the weight of application needs and screen frame and the screen of reality, the hook 33 on the supporting element 31 can arrange one or more.Similarly, the quantity of locking structure 32 and the through hole 34 that matches with locking structure 32 also can be according to the actual conditions setting.And can firmly realize that to screen frame 20 in the situation of lock function, the quantity of locking structure 32 and through hole 34 can be less than according to the application needs setting of reality the quantity of hook 33.
Embodiment 2
A preferred embodiment is realized on basis in embodiment 1.As shown in Figure 2, a kind of locking structure for the rear projection screen framework of this specific embodiment comprises supporting structure 30 and screen suspension structures 40;
Shown in Fig. 2 and 7, supporting structure 30 comprises supporting element 31, locking structure 32, hook 33 and through hole 34, and supporting element 31 is fixed on the back projection box body 10 by the screen sliding motion structure 11 on the back projection box body 10; Wherein supporting element 31 is the first L-type member, this through hole 34 is set on the one end 311, this hook 33 is set above through hole 34, locking mounting hole 313 is set on its other end 312, position of this locking mounting hole 313 is corresponding with through hole 34 topmost position on the supporting element 31, so that locking structure 32 1 ends close through hole top of its upper side when passing through hole 34; Wherein locking structure 32 comprises link 321 and locking plate 322, locking plate 322 1 ends are boss 3222, the other end is boss extension 3223, these boss extension 3223 weight are less than boss 3222, the length of boss extension 3223 is greater than the thickness of supporting element 31, boss 3222 is provided with tapped hole 3221 with the jointing place of boss extension 3223, in the locking mounting hole 313 of locking plate 322 by link 321 and tapped hole 3221 installations and supporting element 31.
As shown in Figure 2, this screen suspension structures 40 comprises the second L-type member, an end face of the second L-type member is fixed on the screen frame 20, is provided with suppending hole 41 on its other end, supporting structure 30 and screen suspension structures 40 by link up with 33 and suppending hole 41 realize being connected and fixed.
Accordingly, the working principle of present embodiment is: will be fixed on the screen sliding motion structure 11 as the first L-type member of supporting element 31 first, achieve and being connected and fixed of back projection box body 10, then will be fixed on the screen frame 20 as an end face of the second L-type member of screen suspension structures 40, the position of hook 33 should be corresponding with the position of suppending hole 41 on the second L-type member on this moment the first L-type member.Be installed on the locking plate 322 in the locking framework 32 in the locking mounting hole 313 of the first L-type member by link 321, make it under natural state of rest can pass through hole 34 and be in self-locking state because the boss 3222 of locking plate 322 overweights boss extension 3223 this moment.When needs are installed screen frame 20, the boss 3222 of locking plate 322 is upwards stirred, this moment, locking plate 322 was in released state, just the suppending hole 41 in the screen suspension structures 40 can be hung on after locking plate 322 releases on the hook 33, thereby realize being fixedly connected with of screen frame 20 and back projection box body 10.Then the boss 3222 of locking plate 322 being stirred downwards makes it get back to initial nature, because Action of Gravity Field forms the self-locking effect, this state keeps always, therefore screen frame is locked on the hook 33, be subject to External Force Acting and also can not deviate from, need in case of necessity manually-operable locking plate 322 screen frame 20 can be taken off.Locking structure design of the present invention is ingenious, utilizes the characteristic of its two ends weight inequality to realize the self-locking effect, and is simple and reliable, easy to operate, thoroughly solved the structure of existing locking framework complexity and the technical problem of the operating procedure of complexity.
Claims (9)
1. a locking framework that is used for the rear projection screen framework is characterized in that, comprises by the screen sliding motion structure on the back projection box body being fixed in the supporting structure on the back projection box body and being used for being fixed on screen suspension structures on the screen frame;
Described supporting structure comprises be used to being fixed on supporting element on the screen sliding motion structure, being installed in locking structure on the supporting element, being arranged on the hook on the supporting element and being arranged on the supporting element and being positioned at the through hole of hook top;
Described screen suspension structures is provided with the suppending hole that is stuck on the described hook, and described supporting structure and screen suspension structures realize being connected and fixed by hook and suppending hole;
The weight of described locking structure one end is greater than the other end, the little end of its weight is passed or breaks away from described through hole by stirring the large end of its weight.
2. the locking framework for the rear projection screen framework according to claim 1, it is characterized in that, described locking structure comprises the weight of link and an end greater than the locking plate of the other end, and described locking plate medium position is provided with tapped hole, and it is installed on the described supporting element by link and tapped hole.
3. the locking framework for the rear projection screen framework according to claim 2, it is characterized in that described locking plate one end is boss, the other end is the boss extension, described boss extension weight is less than boss, and described tapped hole is arranged on the jointing place of boss and boss extension.
4. the locking framework for the rear projection screen framework according to claim 3 is characterized in that, the length of described boss extension is greater than the thickness of supporting element.
5. the locking framework for the rear projection screen framework according to claim 1, it is characterized in that, described supporting element is the first L-type member, described hook and through hole are set on the one end, be provided for installing the locking mounting hole of described locking structure on the other end, described locking structure is installed in the formed semi-open space of two end faces of the first L-type member by its link and locking mounting hole.
6. the locking framework for the rear projection screen framework according to claim 5, it is characterized in that, the position of described locking mounting hole is corresponding with the through hole topmost position on the supporting element so that locking structure one end when passing through hole its upper side near the through hole top.
7. the locking framework for the rear projection screen framework according to claim 1 is characterized in that, described screen suspension structures comprises the second L-type member, and an end face of described the second L-type member is fixed on the screen frame, on its other end suppending hole is set.
8. according to claim 1 to 7 each described locking frameworks for the rear projection screen framework, it is characterized in that the hook on the described supporting element comprises one at least.
9. the locking framework for the rear projection screen framework according to claim 7, it is characterized in that, described locking structure comprises one at least, and the through hole on the described supporting element comprises one at least, and wherein the quantity of locking structure and through hole is less than or equal to the quantity of hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565412.0A CN103032658B (en) | 2012-12-24 | 2012-12-24 | Locking mechanism for rear projection screen frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565412.0A CN103032658B (en) | 2012-12-24 | 2012-12-24 | Locking mechanism for rear projection screen frame |
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| Publication Number | Publication Date |
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| CN103032658A true CN103032658A (en) | 2013-04-10 |
| CN103032658B CN103032658B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210565412.0A Active CN103032658B (en) | 2012-12-24 | 2012-12-24 | Locking mechanism for rear projection screen frame |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105068371A (en) * | 2015-08-10 | 2015-11-18 | 宁波奇科威智能科技有限公司 | Pre-maintenance back projection projector box body |
| CN109537721A (en) * | 2018-12-07 | 2019-03-29 | 福建西河卫浴科技有限公司 | A kind of connection structure and frame |
| CN112344142A (en) * | 2020-11-03 | 2021-02-09 | 深圳创维－Rgb电子有限公司 | Suspension structure |
| CN112532948A (en) * | 2020-12-08 | 2021-03-19 | 成都西物信安智能系统有限公司 | Put in formula control station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105068371A (en) * | 2015-08-10 | 2015-11-18 | 宁波奇科威智能科技有限公司 | Pre-maintenance back projection projector box body |
| CN109537721A (en) * | 2018-12-07 | 2019-03-29 | 福建西河卫浴科技有限公司 | A kind of connection structure and frame |
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| CN112532948A (en) * | 2020-12-08 | 2021-03-19 | 成都西物信安智能系统有限公司 | Put in formula control station |
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| Publication number | Publication date |
|---|---|
| CN103032658B (en) | 2014-10-29 |
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