CN203595889U - Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction - Google Patents
Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction Download PDFInfo
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- CN203595889U CN203595889U CN201320799274.2U CN201320799274U CN203595889U CN 203595889 U CN203595889 U CN 203595889U CN 201320799274 U CN201320799274 U CN 201320799274U CN 203595889 U CN203595889 U CN 203595889U
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- projection screen
- chute
- bolt
- base body
- cold
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Abstract
The utility model discloses an installation device preventing a projection screen against deformation caused by heat-expansion and cold-contraction. The installation device is characterized in that the installation device comprises a L-shaped sliding groove base composed of a horizontal main base body and a vertical support wall, one or more sliding grooves are arranged in the main base body, one or more installation bolts higher than the upper surface of the main base body are fixed in the sliding grooves, an installation space for accommodating the projection screen is formed among the installation bolts and the support wall, and a pressure spring sleeves the installation bolt to buffer the deformation of the projection screen caused by heat-expansion and cold-contraction, thereby enabling the projection screen to stay flat. According to the utility model, a fixed piece adjustable in position and the pressure spring are arranged to buffer the deformation of the projection screen caused by heat-expansion and cold-contraction, so that the deformation of the projection screen is effectively resisted, and the problem caused by the deformation of the projection screen is solved; in addition, the position of the fixed piece can be adjusted by hand, so that the installation requirements of different projection screens are met, and the application range of the installation device is wider.
Description
[technical field]
The utility model relates to projection screen to be installed, particularly a kind of solve problem on deformation that projection screen produces because expanding with heat and contract with cold prevent the erecting device of projection screen because expanding with heat and contract with cold and being out of shape.
[background technology]
Projection screen is point soft curtain and hard curtain generally.Soft curtain is generally film material class, its thinner thickness, and material softness, and collapsible, due to soft curtain material softness, when it is installed and used, generally need to tighten screen by foreign object and make it open and flat and come.Hard curtain is generally to process with sheet material one series products, and its thickness is thicker, and material is harder, and has larger tension force and elasticity, is all to flatten or roll transportation substantially.No matter be soft curtain or hard curtain, in actual use, it is all installed by hard-wired mode, can not effectively solve the problem of projection screen distortion: (1) is in the time that the environment temperature of use occasion is too high, projection screen is heated and expands, just there will be ripple, bubbling phenomenon, i.e. projection screen distortion, directly affects drop shadow effect and its serviceable life.(2) in the time that the environment temperature of use occasion is too low, fixing because of screen surrounding, projection screen is caught a cold and is shunk, and may projection screen tears or broken, directly affects drop shadow effect and its serviceable life.
[summary of the invention]
The utility model is intended to address the above problem, and provide one can automatically regulate installation site, and can effectively cushion and regulate the deflection of projection screen, thereby can solve problem that projection screen produces because of distortion prevent the erecting device of projection screen because expanding with heat and contract with cold and being out of shape.
For achieving the above object, the utility model provides a kind of erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent, it is characterized in that, this erecting device comprises L-type chute pedestal, this L-type chute pedestal is made up of the Base body of level and vertical supporting walls, in described Base body, be provided with one or more chute, in described chute, be fixed with one or more erection bolts higher than described Base body upper surface, between described erection bolt and supporting walls, form the installing space of laying projection screen, on described erection bolt, be arranged with stage clip, thereby make can cushion this deflection by described stage clip in the time that projection screen produces distortion because expanding with heat and contract with cold, and then make projection screen keep smooth.
In described Base body, be provided with fixture, described fixture is located at the upside of described Base body by machine-processed rice bolt, the lower end of described machine-processed rice bolt is threaded ends, it is threadedly connected in the chute of described Base body by it, the upper end of this machine-processed rice bolt is for being fixedly connected with end, it is connected with fixture, thereby makes by the relative distance of dextrorotation or the derotation adjustable fixture of this machine-processed rice bolt and Base body.
On the fixture corresponding with chute, be provided with bolt hole, the lower end of described erection bolt is connected with chute through this bolt hole, and described compression spring sleeve is located on the erection bolt between this erection bolt top and fixture.
The Base body of described L-type chute pedestal is provided with two the first chutes that parallel with supporting walls and the second chute, described the first chute is between the second chute and described supporting walls, described erection bolt is connected with the first chute, and described machine-processed rice bolt is connected with the second chute.
Described the first chute and the second chute are that xsect is T-shaped T-shaped groove, the lower end of described erection bolt and machine-processed rice bolt is arranged with respectively T-shaped nut, this T-shaped nut is located at respectively in the first chute and the second chute, its shape and T-shaped groove match, described erection bolt and machine-processed rice bolt are connected and are vertically connected with chute with described T-shaped nut thread respectively, and adjustable erection bolt and machine-processed rice bolt are with respect to the distance of Base body.
Described fixture is formed by connecting by fixed pedestal and fixed sidewall mutual vertically, and described fixed pedestal is parallel with Base body, and described fixed sidewall is parallel with supporting walls, and this fixed sidewall removably connects by screw and described supporting walls.
The top of described supporting walls is provided with the convex edge, the width of this convex edge and the consistency of thickness of described fixed sidewall that extend to installing space.
Useful contribution of the present utility model is, it efficiently solves the problems referred to above.The utility model by arrange can adjusting position fixture and stage clip, cushion by fixture and stage clip the distortion that projection screen produces because expanding with heat and contract with cold, thereby can effectively resist the deflection of projection screen, solve the problem that projection screen produces because of distortion.In addition, the position that the utility model also can manual adjustments fixture, thereby can meet the installation requirements of different projection screens, its scope of application is wider.The utlity model has the features such as simple in structure, economical and practical, easy to implement, should widely popularize.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model.
Fig. 2 is STRUCTURE DECOMPOSITION schematic diagram of the present utility model.
Fig. 3 is longitudinal sectional view of the present utility model.
Wherein, 10 is L-type chute pedestal, 11 is the Base body of L-type chute pedestal, 12 is the supporting walls of L-type chute pedestal, 121 is the convex edge on supporting walls, 13 is chute, 13A is the upper vallecular cavity of chute, 13B is the lower vallecular cavity of chute, 131 is the first chute, 132 is the second chute, 133 is the convex edge on chute, 20 is erection bolt, 30 is stage clip, 40 is projection screen, 50 is fixture, 51 is the bolt hole on fixture, 52 is the fixed pedestal of fixture, 53 is the fixed sidewall of fixture, 54 is the connecting hole on fixture, 60 is machine-processed rice bolt, 61 is the threaded ends of machine-processed rice bolt, 62 is the oriented sliding link of machine-processed rice bolt, 70 is T-shaped nut, 80 is bolt.
[embodiment]
The following example is to further explanation of the present utility model and supplements, the utility model is not constituted any limitation.
As shown in FIG. 1 to 3, of the present utility model prevent projection screen because of expand with heat and contract with cold distortion erecting device comprise L-type chute pedestal 10, fixture 50, erection bolt 20, machine-processed rice bolt 60 and stage clip 30.Described machine-processed rice bolt 60 is connected on L-type chute pedestal 10 vertically with erection bolt 20, and described fixture 50 is set on machine-processed rice bolt 60, and can regulate its distance up and down with respect to L-type chute pedestal 10 along machine-processed rice bolt 60 oriented slidings; Described stage clip 30 is set on erection bolt 20, and the supporting walls 12 of itself and L-type chute pedestal 10 forms the installing space of laying projection screen 40.In the time that the mounting portion, edge of projection screen 40 (for the part of location and installation, it is the frame of projection screen both, can be also a certain side of projection screen) is loaded in this installing space, stage clip 30 contacts with projection screen 40.When projection screen 40 produces when distortion because expanding with heat and contract with cold, described stage clip 30 can regulate automatically according to the actual state of projection screen 40 relative position relation of itself and projection screen 40, to cushion the deflection of this projection screen 40.If projection screen 40 shrinks distortion, just described stage clip 30 can compress the mounting portion, edge of projection screen 40, make projection screen 40 exceptionally straight; If projection screen 40 expands distortion, just described stage clip 30 can move because of stressed, installing space and projection screen 40 are adapted outward.In addition, can also be according to deformation and installation requirements, the installation site of manual adjustments fixture 50, so that projection screen 40 is more open and more flat.
Specifically, as shown in Figure 1 and Figure 2, described L-type chute pedestal 10 is used to other installing components that mounting platform is provided, and makes miscellaneous part can carry out activity thereon and installs, to adapt to the installation requirement of different projection screens 40.This L-type chute pedestal 10 is made up of the Base body 11 of level and vertical supporting walls 12, is provided with one or more chute 13 in described Base body 11.In the present embodiment, in this Base body 11, be provided with 13: the first chutes 131 of two chutes that are parallel to each other and the second chute 132.Described chute 13 bearing of trends are parallel with the installation direction of projection screen 40, parallel with described supporting walls 12.The length of described chute 13 and Base body 11, can determine according to the length of projection screen 40 or width.For example, when this L-type chute 13 is when being arranged on projection screen 40 downside, the length of this Base body 11 and chute 13 just can be arranged to consistent with the width of projection screen 40.Described the first chute 131 is positioned at the inner side of the second chute 132 and near supporting walls 12, the first chute 131 is between the second chute 132 and supporting walls 12.This first chute 131 and the second chute 132 are xsect is T-shaped or class is T-shaped T-shaped groove.This T-shaped groove is made up of the upper vallecular cavity 13A mutually connecting and lower vallecular cavity 13B.The width of described lower vallecular cavity 13B matches with the diameter of machine-processed rice bolt 60 and erection bolt 20 respectively, so that the lower end of machine-processed rice bolt 60 and erection bolt 20 is plugged in respectively in T-shaped groove.On described the upper end open place of vallecular cavity 13A be respectively equipped with extend internally and with the straight convex edge 133 of Base body 11 upper surfaces, this convex edge 133 makes to form in Base body 11 connector that an opening is less than T-shaped groove upper end open, thereby be convenient to T-shaped nut 70 is set in upper vallecular cavity 13A, and T-shaped nut 70 is limited in this T-shaped groove.On the supporting walls 12 of described L-type chute 13, be provided with several bolt connecting hole (not shown)s, for fixing described fixture 50.The position of described bolt connecting hole can be determined according to the installation site of fixture 50.When concrete enforcement, can be on supporting walls 12 interval the bolt connecting hole of several spaces is set, fixture 50 needs select the wherein bolt connecting hole of certain position to be fixed connection according to installing.In addition, also be provided with the convex edge 121 of extending to installing space at the top of described supporting walls 12, the consistency of thickness of the width of this convex edge 121 and described fixed sidewall 53, thereby make the outer wall of this convex edge 121 mutually concordant with described fixed sidewall 53, so that support described projection screen 40, make projection screen 40 many places supported and more open and more flat.
As shown in Figure 1 and Figure 2, described machine-processed rice bolt 60 is for regulating the position height of fixture 50, and it is connected in the second chute 132.Described machine-processed rice bolt 60 can be selected known machine-processed rice bolt, and its upper end is oriented sliding link 62, and its lower end is threaded ends 61.The oriented sliding link 62 of this machine-processed rice bolt 60 is connected with fixture 50, and its threaded ends 61 is inserted in the lower vallecular cavity 13B of the second chute 132.Stablize and be connected with the second chute 132 for ease of this machine-processed rice bolt 60, and the position height of adjustable described fixture 50, be arranged with a T-shaped nut 70 at the threaded ends 61 of this machine-processed rice bolt 60, this T-shaped nut 70 is positioned at the upper vallecular cavity 13A of the second chute 132, and the shape of cross section of its shape of cross section and upper vallecular cavity 13A matches.Described T-shaped nut 70 is threaded connection with the threaded ends 61 of machine-processed rice bolt 60, thereby machine-processed rice bolt 60 can be connected in the second chute 132 vertically, and can make fixture 50 along its oriented sliding and distance between fixture 50 and Base body 11 upper surfaces.
As shown in Figure 1 and Figure 2, described fixture 50 is formed by connecting by orthogonal fixed pedestal 52 and fixed sidewall 53, and described fixed pedestal 52 is parallel with Base body 11, and described fixed sidewall 53 is parallel with supporting walls 12.The length of described fixture 50 is less than the length of L-type chute pedestal 10.This fixture 50 is mainly used in support projection screen 40, and therefore, it can arrange multiple fixtures 50 as required on L-type chute pedestal 10, to be supported on the diverse location place of projection screen 40.On the fixed pedestal 52 corresponding with machine-processed rice bolt 60 ends, be provided with a connecting hole 54, the diameter of the oriented sliding link 62 of the size of this connecting hole 54 and described machine-processed rice bolt 60 matches, thereby makes this fixture 50 can be socketed in by this connecting hole 54 upper end of machine-processed rice bolt 60.In addition, on the fixed pedestal 52 corresponding with the first chute 131, be provided with a bolt hole 51, for wearing erection bolt 20.On the fixed sidewall 53 of this fixture 50, be provided with bolt connecting hole, for fixture 50 is further fixed and is connected with the supporting walls 12 of L-type chute pedestal 10.In the present embodiment, be provided with two bolt connecting holes on the fixed sidewall 53 of this fixture 50, the distance at these two bolt connecting hole intervals, should be consistent with the distance at the bolt connecting hole interval on supporting walls 12, thereby be convenient to be fixed by bolt 80.
As shown in Figure 1, Figure 2, Figure 3 shows, described erection bolt 20 can be the bolt of any known, and its upper end is bolt head, and its lower end is provided with connection screw thread, and in the present embodiment, it is hexagon socket head cap screw.The lower end of this erection bolt 20 is connected with the first chute 131 through the bolt hole 51 on fixture 50.Stablize and be connected with the first chute 131 for ease of it, be arranged with a T-shaped nut 70 in the lower end of this erection bolt 20, this T-shaped nut 70 is positioned at the upper vallecular cavity 13A of the first chute 131, and the shape of cross section of its shape of cross section and upper vallecular cavity 13A matches.This T-shaped nut 70 is threaded with the lower end of erection bolt 20, thereby erection bolt 20 can be stably vertically connected in the first chute 131, and exceeds and the upper surface of fixed pedestal 52.This erection bolt 20 exceeds the part of fixed pedestal 52, and keeps at a certain distance away between the fixed sidewall 53 of fixture 50, thereby forms the installing space that projection screen 40 can be installed.Because the thickness of the mounting portion, edge of different projection screens 40 is different, thereby distance between erection bolt 20 and fixed sidewall 53 can arrange according to projection screen 40 actual (real) thickness under normal circumstances.When concrete enforcement, the thickness should not be out of shape according to projection screen 40 time sets the distance of the first chute 131 apart from supporting walls 12.
As shown in Figure 1 and Figure 2, described stage clip 30 can be the stage clip 30 of any known, and it is set on the erection bolt 20 between erection bolt 20 and fixed pedestal 52.Because the distance between erection bolt 20 and fixed sidewall 53 is to set according to the actual (real) thickness of projection screen 40, in the time that projection screen 40 is vertically put into installing space, described stage clip 30 just contacts with projection screen 40 under normal circumstances.If projection screen 40 is because excess Temperature etc. is former thereby while expanding distortion, just projection screen 40 can be oppressed stage clip 30, just this pressure of available buffer of stage clip 30, is not clipped between stage clip 30 and fixed sidewall 53 tightly by not loose projection screen 40; In addition, the position of adjusting fixture 50 that can also be manual, by making fixture 50 regulate the upper-lower position of fixture along machine-processed rice bolt 60 oriented slidings, makes the projection screen 40 of dilatational strain keep smooth, so that improve drop shadow effect.And if projection screen 40 is too low etc. former thereby while shrinking distortion because of temperature, just described stage clip 30 can compress the mounting portion, edge of projection screen 40, make projection screen 40 keep smooth.Equally, can also carry out manual adjustments according to actual conditions.
When the utility model is installed, as shown in Figure 1, Figure 3, first determine projection screen 40 according to the size of projection screen 40 and need the position of supporting, then utilize machine-processed rice bolt 60 that fixture 50 is fixed on to suitable height on L-type chute pedestal 10, and make suitably distance of interval between fixture 50 and fixture 50, then further by affixed with supporting walls 12 fixture 50 use bolts 80.Again the edge mounting portion of projection screen 40 be put in fixture 50 on thereafter, being affixed with fixed sidewall 53 of its, then packing cover into has the erection bolt 20 of stage clip 30, by erection bolt 20 and stage clip 30, the mounting portion, edge of projection screen 40 is fixed in installing space, thereby the installation that makes plurality of positions can make projection screen 40 tighten, and the deflection that produces because expanding with heat and contract with cold of automatic buffer projection screen 40, and then solve the problem on deformation that existing projection screen 40 produces because expanding with heat and contract with cold, improve drop shadow effect and serviceable life.
By this, the utility model cushions by fixture 50 and stage clip 30 that adjustable position is set the distortion that projection screen 40 produces because expanding with heat and contract with cold, thereby can effectively resist the deflection of projection screen 40, solves the problem that projection screen 40 produces because of distortion.
Claims (7)
1. one kind prevents the erecting device of projection screen because of the distortion of expanding with heat and contract with cold, it is characterized in that, this erecting device comprises L-type chute pedestal (10), this L-type chute pedestal (10) is made up of the Base body (11) of level and vertical supporting walls (12), in described Base body (11), be provided with one or more chute (13), in described chute (13), be fixed with one or more erection bolts (20) higher than described Base body (11) upper surface, between described erection bolt (20) and supporting walls (12), form the installing space of laying projection screen (40), on described erection bolt (20), be arranged with stage clip (30), thereby make can adjust this deflection by described stage clip (30) buffering in the time that projection screen (40) produces distortion because expanding with heat and contract with cold, and then make projection screen (40) keep smooth.
2. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 1, it is characterized in that, in described Base body (11), be provided with fixture (50), described fixture (50) is located at the upside of described Base body (11) by machine-processed rice bolt (60), the lower end of described machine-processed rice bolt (60) is threaded ends (61), it is threadedly connected in the chute (13) of described Base body (11) by it, the upper end of this machine-processed rice bolt (60) is oriented sliding link (62), it is connected with fixture (50), thereby make fixture (50) oriented sliding and regulate the relative distance of fixture (50) and Base body (11).
3. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 2, it is characterized in that, on the fixture (50) corresponding with chute (13), be provided with bolt hole (51), the lower end of described erection bolt (20) is connected with chute (13) through this bolt hole (51), and described stage clip (30) is sheathed on the erection bolt (20) between this erection bolt (20) top and fixture (50).
4. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 3, it is characterized in that, the Base body (11) of described L-type chute pedestal (10) is provided with two the first chutes (131) that parallel with supporting walls (12) and the second chute (132), described the first chute (131) is positioned between the second chute (132) and described supporting walls (12), described erection bolt (20) is connected with the first chute (131), and described machine-processed rice bolt (60) is connected with the second chute (132).
5. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 4, it is characterized in that, described the first chute (131) and the second chute (132) are T-shaped T-shaped groove for xsect, described erection bolt (20) is arranged with respectively T-shaped nut (70) with the lower end of machine-processed rice bolt (60), this T-shaped nut (70) is located at respectively in the first chute (131) and the second chute (132), its shape and T-shaped groove match, described erection bolt (20) and machine-processed rice bolt (60) are threaded and are vertically connected with chute (13) with described T-shaped nut (70) respectively, and adjustable erection bolt (20) and machine-processed rice bolt (60) are with respect to the distance of Base body (11).
6. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 5, it is characterized in that, described fixture (50) is by fixed pedestal (52) and fixed sidewall (53) are formed by connecting mutual vertically, described fixed pedestal (52) is parallel with Base body (11), described fixed sidewall (53) is parallel with supporting walls (12), and this fixed sidewall (53) removably connects by bolt (80) and described supporting walls (12).
7. the erecting device of projection screen because of the distortion of expanding with heat and contract with cold that prevent as claimed in claim 6, it is characterized in that, the top of described supporting walls (12) is provided with the convex edge (121) of extending to installing space, the consistency of thickness of the width of this convex edge (121) and described fixed sidewall (53) and make front side or the rear side surface butt of this convex edge (121) and projection screen (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799274.2U CN203595889U (en) | 2013-12-06 | 2013-12-06 | Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799274.2U CN203595889U (en) | 2013-12-06 | 2013-12-06 | Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595889U true CN203595889U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320799274.2U Expired - Fee Related CN203595889U (en) | 2013-12-06 | 2013-12-06 | Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595889U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101449A1 (en) * | 2014-12-26 | 2016-06-30 | 海信集团有限公司 | Soft screen supporting and adjusting device and projection display device |
| WO2019136833A1 (en) * | 2018-01-10 | 2019-07-18 | 深圳光峰科技股份有限公司 | Screen device and projection system |
| WO2021129500A1 (en) * | 2019-12-24 | 2021-07-01 | 深圳光峰科技股份有限公司 | Projection screen, flatness adjusting devices, and supporting and limiting device |
| WO2021159887A1 (en) * | 2020-02-12 | 2021-08-19 | 深圳光峰科技股份有限公司 | Projection screen device |
-
2013
- 2013-12-06 CN CN201320799274.2U patent/CN203595889U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101449A1 (en) * | 2014-12-26 | 2016-06-30 | 海信集团有限公司 | Soft screen supporting and adjusting device and projection display device |
| WO2019136833A1 (en) * | 2018-01-10 | 2019-07-18 | 深圳光峰科技股份有限公司 | Screen device and projection system |
| WO2021129500A1 (en) * | 2019-12-24 | 2021-07-01 | 深圳光峰科技股份有限公司 | Projection screen, flatness adjusting devices, and supporting and limiting device |
| WO2021159887A1 (en) * | 2020-02-12 | 2021-08-19 | 深圳光峰科技股份有限公司 | Projection screen device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20171206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |