CN105974726A - F-shaped portable support screen - Google Patents
F-shaped portable support screen Download PDFInfo
- Publication number
- CN105974726A CN105974726A CN201610513585.6A CN201610513585A CN105974726A CN 105974726 A CN105974726 A CN 105974726A CN 201610513585 A CN201610513585 A CN 201610513585A CN 105974726 A CN105974726 A CN 105974726A
- Authority
- CN
- China
- Prior art keywords
- curtain
- fixed sleeving
- lock sleeve
- rotation set
- stay
- 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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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Abstract
The invention discloses an F-shaped portable support screen, comprising a curtain support and a curtain box, wherein a clasp is arranged at the outer end of a projection curtain; the curtain support comprises a support pipe, a support frame is arranged at the bottom of the support pipe, a fixed sleeve is arranged on the support pipe, the fixed sleeve is fixed with the support pipe via a first fixing device, an adjusting rod penetrates through the support pipe, a second fixing device capable of fixing the adjusting rod and the support pipe is arranged at the top of the support pipe, a hook is arranged at the top of the adjusting rod, and a positioning boss is arranged at the lower part of the hook; the curtain box comprises a box body, a fixed strut is arranged on the box body, and a positioning groove is formed in at least one end face of the box body; and a locking device capable of locking the fixed strut is arranged on the fixed sleeve. The support curtain is convenient to carry, and the first and second fixing devices are simple in structure, high in fixing reliability and convenient to operate; and the curtain box can be installed and supported more stably.
Description
Technical field
The present invention relates to audio-visual equipment field, be specifically related to portable rack curtain.
Background technology
nullProjection screen is the scialyscope instrument for projection picture，Existing a kind of portable rack curtain，Its structure includes: curtain support and rolling have the curtain kit of projection screen，The outer end of projection screen is provided with pulling buckle，Pulling buckle is positioned at outside curtain kit，The structure of curtain support includes: the stay tube vertically placed，The bottom of a stay tube is provided with bracing frame，A stay tube is provided with the fixed sleeving that can install curtain kit，Fixed sleeving horizontal positioned，Fixed sleeving is fixed with a stay tube by the first fixing device，Fixed sleeving height on a stay tube can be manually regulated by the first fixing device，It is equipped with an adjusting rod in a stay tube，The bottom of adjusting rod is inserted in a stay tube，A stay tube is stretched out at the top of adjusting rod，The second fixing device that adjusting rod can be fixed it is additionally provided with a stay tube at the top of a stay tube，Can manually regulate adjusting rod by the second fixing device and stretch out the length of a stay tube，It is additionally provided with hook at the top of adjusting rod.The structure of curtain kit includes: the box body of energy rolling projection screen, is provided with the fixing pillar for fixed bin body on the sidewall at box body axially middle part；Curtain kit can be made after being inserted in fixed sleeving by fixing pillar on box body to be installed on a stay tube, then make box body horizontal positioned and upwards pull out projection screen, making the pulling buckle of projection screen outer end be hung on hook, projection screen so can be made to be unfolded suspension；When projection screen leaves unused and do not uses, need, by projection screen rolling in curtain kit, to be taken off from curtain support by curtain kit the most again.Above-mentioned portable rack curtain has a disadvantage in that the one, first fixing device and the complicated structure of the second fixing device, and fixing poor reliability and operate comparatively laborious；Two, the fixing pillar on curtain kit easily skids off from fixed sleeving so that curtain kit is not reliably fixed on a stay tube；Three, when not in use, this portable rack curtain needs to take off curtain kit from curtain support, so can be not readily portable.
Summary of the invention
The technical problem to be solved is: install that regulation is the most very convenient, can be fixedly supported curtain kit and portable F type portable rack curtain by a kind of for offer.
nullIn order to solve the problems referred to above the technical solution adopted in the present invention it is: F type portable rack curtain，Including: curtain support and rolling have the curtain kit of projection screen，The outer end of projection screen is provided with pulling buckle，Pulling buckle is positioned at outside curtain kit，It is characterized in: the structure of curtain support includes: the stay tube vertically placed，The bottom of a stay tube is provided with bracing frame，A stay tube is provided with the fixed sleeving that can install curtain kit，Fixed sleeving horizontal positioned，Fixed sleeving is fixed with a stay tube by the first fixing device，The structure of the first fixing device includes: the movable set the first lock sleeve outside a stay tube，The first stay it is provided with in the sidewall of the first lock sleeve，The lower end of the first stay and the first lock sleeve are fixedly connected into one，The upper end of the first stay can slope inwardly and protrude from the inner surface of the first lock sleeve sidewall，The sidewall of the first lock sleeve is also hinged with can on the first lock sleeve the first cam of rotation，First cam is positioned at the outside of the first stay，And the first stay can be pressed after rotating by the first cam，The upper end making the first stay can tilt in the inner chamber of the first lock sleeve and lean locking with stay tube，So that the first lock sleeve fixes with a stay tube，Fixed sleeving and the first lock sleeve fix；nullIt is equipped with an adjusting rod in a stay tube，The bottom of adjusting rod is inserted in a stay tube，A stay tube is stretched out at the top of adjusting rod，The second fixing device that adjusting rod can be fixed it is additionally provided with a stay tube at the top of a stay tube，It is additionally provided with hook at the top of adjusting rod，It is additionally provided with positioning boss in the bottom of hook，The structure of the second fixing device includes: the second lock sleeve，The bottom fixed cover of the second lock sleeve is loaded on the outside at a stay tube top，The top of the second lock sleeve is placed in the outside of adjusting rod，The second stay it is provided with in the sidewall of the second lock sleeve，The lower end of the second stay and the second lock sleeve are fixedly connected into one，The upper end of the second stay can slope inwardly and protrude from the inner surface of the second lock sleeve sidewall，The sidewall of the second lock sleeve is also hinged with can on the second lock sleeve the second cam of rotation，Second cam is positioned at the outside of the second stay，And the second stay can be pressed after rotating by the second cam，The upper end making the second stay can tilt in the inner chamber of the second lock sleeve and lean locking with adjusting rod，So that adjusting rod fixes with a stay tube；The structure of curtain kit includes: the box body of energy rolling projection screen, is provided with the fixing pillar for fixed bin body on the sidewall at box body axially middle part, is provided with the detent of the plug that can match with positioning boss at least end face of box body；Curtain kit can be made after being inserted in fixed sleeving by fixing pillar on box body to be installed on a stay tube, fixed sleeving is additionally provided with the buckling and locking device that can lock in fixed sleeving by the fixing pillar card inserted in fixed sleeving, if now making box body horizontal positioned and upwards pulling out projection screen, the pulling buckle making projection screen outer end is hung on hook, and projection screen just can be made to be unfolded suspension；If making box body vertically place, then unclamping the second fixing device and manually regulating the height of hook and make the positioning boss on hook be inserted in the detent of box body one end, curtain kit just can be made vertically to be fixed on curtain support.
Further, aforesaid F type portable rack curtain, wherein: the structure of buckling and locking device is: on the sidewall of fixed sleeving, be at least evenly arranged with two open-works arranged around fixed sleeving, each open-work is on the same circumference centered by the axial line of fixed sleeving, it is provided with ball in each open-work, ball can be resisted against the bottom of open-work and stretch in the inner chamber of fixed sleeving but cannot pass through open-work and fall in fixed sleeving, it is additionally provided with in the outside of fixed sleeving and can press each ball and make each ball stretch into the hold-down mechanism in fixed sleeving inner chamber, the sidewall of fixing pillar is provided with annular groove；When the fixing pillar on curtain kit inserts fixed sleeving, manipulation hold-down mechanism can make hold-down mechanism not press each ball, each ball can outwards be pushed open and insert in fixed sleeving by the front end making fixing pillar, then manipulation hold-down mechanism can make hold-down mechanism press each ball, each ball is made to stretch in the inner chamber of fixed sleeving, stretch in the annular groove on fixing pillar sidewall, so that each ball can carry out kayser to fixing pillar simultaneously.
nullFurther，Aforesaid F type portable rack curtain，Wherein: the structure of hold-down mechanism includes: be fixed on the installing plate on the first lock sleeve sidewall，The inner of fixed sleeving fixes with the outer surface of installing plate，At the outer sheath of fixed sleeving equipped with rotation set，Each ball is pressed by the inner side wall energy of rotation set，Each ball is stretched in fixed sleeving inner chamber，Rotation set medial wall is circumferentially gone back uniform intervals be provided with several can with each ball one_to_one corresponding and ball will not be pressed dodge breach，When each ball is pressed by the medial wall of rotation set，Rotation set is in pressed state，When each on rotation set dodge breach move make ball not be pressed to each self-corresponding ball time，Rotation set is in decompressed state，Rotation set can be made to change between pressed state and decompressed state by rotating rotation set，Rotation set is additionally provided with the resilient retention mechanism that rotation set can be made to keep pressed state.
nullFurther，Aforesaid F type portable rack curtain，Wherein: the structure of resilient retention mechanism is: be provided with spring fixed column on the installing plate outer surface of rotation set side，The lateral wall of rotation set is provided with spring dead plate，The lateral wall of rotation set is additionally provided with a gag lever post，The outer end of gag lever post is provided with the positive stop lug boss towards installing plate projection，Positive stop lug boss is positioned at the side of installing plate，Positive stop lug boss can lean with the installing plate sidewall of respective side after rotating along with rotation set，Stretching spring it is arranged with outside rotation set between spring fixed column and spring dead plate，One end of stretching spring fixes with spring dead plate，The other end of stretching spring fixes with spring fixed column，The position that the installing plate sidewall that stretching spring can make rotation set rotate forward to positive stop lug boss Yu respective side leans，And positive stop lug boss can be made to keep the state leant with installing plate sidewall，And now rotation set is in pressed state，Only after overcoming the elastic force stretching spring and manually reversely rotating rotation set，Rotation set just can be made to change to decompressed state.
Further, aforesaid F type portable rack curtain, wherein: on the lateral wall of rotation set, be additionally provided with the shutter that can shelter from stretching spring.
Further, aforesaid F type portable rack curtain, wherein: bracing frame is the collapsible tripod closed up.
Further, aforesaid F type portable rack curtain, wherein: be provided with the handle that can conveniently move up and down the first lock sleeve in the outside of the first lock sleeve.
Further, aforesaid F type portable rack curtain, wherein: on the first cam and the second cam, be provided with the handle that can conveniently rotate cam.
Further, aforesaid F type portable rack curtain, wherein: on the lateral wall of fixed sleeving, be additionally provided with the jump ring that rotation set can be prevented from the landing of fixed sleeving outer end.
Advantages of the present invention is: the first fixing device in F type portable rack curtain of the present invention and the simple in construction of the second fixing device, fixing reliability are high, easy to operate；And the fixed sleeving on this screen support frame can carry out kayser to fixing pillar such that it is able to more securely install and support curtain kit.Idle do not use time, curtain kit can vertically be fixed on curtain support, consequently facilitating carry.
Accompanying drawing explanation
Fig. 1 is the structural representation of F type portable rack curtain of the present invention.
Fig. 2 is zoomed-in view at A in Fig. 1.
Fig. 3 is the detonation configuration schematic diagram of Fig. 2.
Fig. 4 is zoomed-in view at B in Fig. 1.
Fig. 5 is the detonation configuration schematic diagram of Fig. 4.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, F type portable rack curtain, including: curtain support 7 and rolling have the curtain kit 8 of projection screen 63, the outer end of projection screen 63 is provided with pulling buckle 62, pulling buckle 62 is positioned at outside curtain kit 8, and the structure of curtain support 7 includes: the stay tube 1 vertically placed, and the bottom of a stay tube 1 is provided with bracing frame 11, in the present embodiment, bracing frame 11 is the collapsible tripod closed up.nullA stay tube 1 is provided with the fixed sleeving 2 that can install curtain kit 8，Fixed sleeving 2 horizontal positioned，Fixed sleeving 2 is fixed with a stay tube 1 by the first fixing device 3，The structure of the first fixing device 3 includes: the movable set the first lock sleeve 31 outside a stay tube 1，The first stay 32 it is provided with in the sidewall of the first lock sleeve 31，The lower end of the first stay 32 and the first lock sleeve 31 are fixedly connected into one，The upper end of the first stay 32 can slope inwardly and protrude from the inner surface of the first lock sleeve 31 sidewall，The sidewall of the first lock sleeve 31 is also hinged with can on the first lock sleeve 31 first cam 33 of rotation，First cam 33 is positioned at the outside of the first stay 32，And the first stay 32 can be pressed after rotating by the first cam 33，The upper end making the first stay 32 can tilt in the inner chamber of the first lock sleeve 31 and lean locking with stay tube 1，So that the first lock sleeve 31 fixes with a stay tube 1，Fixed sleeving 2 fixes with the first lock sleeve 31；nullIt is equipped with an adjusting rod 4 in a stay tube 1，The bottom of adjusting rod 4 is inserted in a stay tube 1，A stay tube 1 is stretched out at the top of adjusting rod 4，The second fixing device 5 that adjusting rod 4 can be fixed it is additionally provided with a stay tube 1 at the top of a stay tube 1，It is additionally provided with hook 41 at the top of adjusting rod 4，It is additionally provided with positioning boss 411 in the bottom of hook 41，The structure of the second fixing device 5 includes: the second lock sleeve 51，The bottom fixed cover of the second lock sleeve 51 is loaded on the outside at stay tube 1 top，The top of the second lock sleeve 51 is placed in the outside of adjusting rod 4，The second stay 52 it is provided with in the sidewall of the second lock sleeve 51，The lower end of the second stay 52 and the second lock sleeve 51 are fixedly connected into one，The upper end of the second stay 52 can slope inwardly and protrude from the inner surface of the second lock sleeve 51 sidewall，The sidewall of the second lock sleeve 51 is also hinged with can on the second lock sleeve 51 second cam 53 of rotation，Second cam 53 is positioned at the outside of the second stay 52，And the second stay 52 can be pressed after rotating by the second cam 53，The upper end making the second stay 52 can tilt in the inner chamber of the second lock sleeve 51 and lean locking with adjusting rod 4，So that adjusting rod 4 fixes with a stay tube 1；The structure of curtain kit 8 includes: the box body 6 of energy rolling projection screen 63, the sidewall at box body 6 axially middle part is provided with the fixing pillar 61 for fixed bin body 6, at least end face of box body 6 is provided with the detent 64 of the plug that can match with positioning boss 411；Curtain kit 8 can be made after being inserted in fixed sleeving 2 by fixing pillar 61 on box body 6 to be installed on a stay tube 1, fixed sleeving 2 is additionally provided with and the fixing pillar 61 inserted in fixed sleeving 2 card can be locked in the buckling and locking device in fixed sleeving 2；If now making box body 6 horizontal positioned and upwards pulling out projection screen 63, make the pulling buckle 62 of projection screen 63 outer end be hung on hook 41, projection screen 63 just can be made to be unfolded suspension；If making box body 6 vertically place, then unclamp the second fixing device 5 and manually regulation hook 41 height make the positioning boss 411 on hook 41 be inserted in the detent 64 of box body 6 one end, curtain kit 8 just can be made vertically to be fixed on curtain support 7.
In the present embodiment, the structure of buckling and locking device is: be evenly arranged with three open-works 21 arranged around fixed sleeving 2 on the sidewall of fixed sleeving 2, on each open-work 21 same circumference centered by the axial line by fixed sleeving 2, it is provided with ball 22 in each open-work 21, ball 22 can be resisted against the bottom of open-work 21 and stretch in the inner chamber of fixed sleeving 2 but cannot pass through open-work 21 and fall in fixed sleeving 2, it is additionally provided with in the outside of fixed sleeving 2 and can press each ball 22 and make each ball 22 stretch into the hold-down mechanism in fixed sleeving 2 inner chamber, the sidewall of fixing pillar 61 is provided with annular groove 611；When the fixing pillar 61 on curtain kit 8 inserts fixed sleeving 2, manipulation hold-down mechanism can make hold-down mechanism not press each ball 22, each ball 22 can outwards be pushed open and insert in fixed sleeving 2 by the front end making fixing pillar 61, then manipulation hold-down mechanism can make hold-down mechanism press each ball 22, each ball 22 is made to stretch in the inner chamber of fixed sleeving 2, stretch in the annular groove 611 on fixing pillar 61 sidewall, so that each ball 22 can carry out kayser to fixing pillar 61 simultaneously.
nullIn the present embodiment，The structure of hold-down mechanism includes: be fixed on the installing plate 23 on the first lock sleeve 31 sidewall，The inner of fixed sleeving 2 fixes with the outer surface of installing plate 23，At the outer sheath of fixed sleeving 2 equipped with rotation set 24，Each ball 22 can be pressed by the medial wall 241 of rotation set 24，Each ball 22 is stretched in fixed sleeving 2 inner chamber，Rotation set 24 medial wall 241 is circumferentially gone back uniform intervals be provided with three can with each ball 22 one_to_one corresponding and ball 22 will not be pressed dodge breach 242，When each ball 22 is pressed by the medial wall 241 of rotation set 24，Rotation set 24 is in pressed state，When each on rotation set 24 dodge breach 242 move make ball 22 not be pressed to each self-corresponding ball 22 time，Rotation set 24 is in decompressed state，Rotation set 24 can be made to change between pressed state and decompressed state by rotating rotation set 24，Rotation set 24 is additionally provided with the resilient retention mechanism that rotation set 24 can be made to keep pressed state.
nullIn the present embodiment，The structure of resilient retention mechanism is: be provided with spring fixed column 25 on installing plate 23 outer surface of rotation set 24 side，The lateral wall of rotation set 24 is provided with spring dead plate 26，The lateral wall of rotation set 24 is additionally provided with a gag lever post 27，The outer end of gag lever post 27 is provided with the positive stop lug boss 271 towards installing plate 23 projection，Positive stop lug boss 271 is positioned at the side of installing plate 23，Positive stop lug boss 271 can lean with installing plate 23 sidewall of respective side after rotating along with rotation set 24，It is arranged with stretching spring outside rotation set 24 between spring fixed column 25 and spring dead plate 26，One end of stretching spring fixes with spring dead plate 26，The other end of stretching spring fixes with spring fixed column 25，The position that installing plate 23 sidewall that stretching spring can make rotation set 24 rotate forward to positive stop lug boss 271 with respective side leans，And positive stop lug boss 271 can be made to keep the state leant with installing plate 23 sidewall，And now rotation set 24 is in pressed state，Only after overcoming the elastic force stretching spring and manually reversely rotating rotation set 24，Rotation set 24 just can be made to change to decompressed state.
During use, when needing the fixing pillar 61 on curtain kit 8 is inserted fixed sleeving 2, manually reversely rotate rotation set 24, rotation set 24 is made to change to decompressed state, now each ball 22 will not be pressed by hold-down mechanism, each ball 22 just can outwards be pushed open and insert fixed sleeving 2 by the front end of so fixing pillar 61, then rotation set 24 is decontroled, rotation set 24 is made to be reset to pressed state under the effect of stretching spring, now each ball 22 can be pressed by hold-down mechanism, make each ball 22 can stretch in the inner chamber of fixed sleeving 2, stretch in the annular groove 611 outside fixing pillar 61 simultaneously, so that each ball 22 can carry out kayser to fixing pillar 61.
In the present embodiment, the lateral wall of rotation set 24 is additionally provided with can shelter from stretching spring shutter 29.The handle 34 that can conveniently move up and down the first lock sleeve 31 it is provided with in the outside of the first lock sleeve 31.
First cam 33 and the second cam 53 are provided with the handle that can conveniently rotate cam, respectively first handle 331 and second handle 531.The lateral wall of fixed sleeving 2 is additionally provided with the jump ring 291 that rotation set 24 can be prevented from fixed sleeving 2 outer end landing.
Claims (10)
- null1.F type portable rack curtain，Including: curtain support and rolling have the curtain kit of projection screen，The outer end of projection screen is provided with pulling buckle，Pulling buckle is positioned at outside curtain kit，It is characterized in that: the structure of curtain support includes: the stay tube vertically placed，The bottom of a stay tube is provided with bracing frame，A stay tube is provided with the fixed sleeving that can install curtain kit，Fixed sleeving horizontal positioned，Fixed sleeving is fixed with a stay tube by the first fixing device，The structure of the first fixing device includes: the movable set the first lock sleeve outside a stay tube，The first stay it is provided with in the sidewall of the first lock sleeve，The lower end of the first stay and the first lock sleeve are fixedly connected into one，The upper end of the first stay can slope inwardly and protrude from the inner surface of the first lock sleeve sidewall，The sidewall of the first lock sleeve is also hinged with can on the first lock sleeve the first cam of rotation，First cam is positioned at the outside of the first stay，And the first stay can be pressed after rotating by the first cam，The upper end making the first stay can tilt in the inner chamber of the first lock sleeve and lean locking with stay tube，So that the first lock sleeve fixes with a stay tube，Fixed sleeving and the first lock sleeve fix；nullIt is equipped with an adjusting rod in a stay tube，The bottom of adjusting rod is inserted in a stay tube，A stay tube is stretched out at the top of adjusting rod，The second fixing device that adjusting rod can be fixed it is additionally provided with a stay tube at the top of a stay tube，It is additionally provided with hook at the top of adjusting rod，It is additionally provided with positioning boss in the bottom of hook，The structure of the second fixing device includes: the second lock sleeve，The bottom fixed cover of the second lock sleeve is loaded on the outside at a stay tube top，The top of the second lock sleeve is placed in the outside of adjusting rod，The second stay it is provided with in the sidewall of the second lock sleeve，The lower end of the second stay and the second lock sleeve are fixedly connected into one，The upper end of the second stay can slope inwardly and protrude from the inner surface of the second lock sleeve sidewall，The sidewall of the second lock sleeve is also hinged with can on the second lock sleeve the second cam of rotation，Second cam is positioned at the outside of the second stay，And the second stay can be pressed after rotating by the second cam，The upper end making the second stay can tilt in the inner chamber of the second lock sleeve and lean locking with adjusting rod，So that adjusting rod fixes with a stay tube；The structure of curtain kit includes: the box body of energy rolling projection screen, is provided with the fixing pillar for fixed bin body on the sidewall at box body axially middle part, is provided with the detent of the plug that can match with positioning boss at least end face of box body；Curtain kit can be made after being inserted in fixed sleeving by fixing pillar on box body to be installed on a stay tube, fixed sleeving is additionally provided with the buckling and locking device that can lock in fixed sleeving by the fixing pillar card inserted in fixed sleeving, if now making box body horizontal positioned and upwards pulling out projection screen, the pulling buckle making projection screen outer end is hung on hook, and projection screen just can be made to be unfolded suspension；If making box body vertically place, then unclamping the second fixing device and manually regulating the height of hook and make the positioning boss on hook be inserted in the detent of box body one end, curtain kit just can be made vertically to be fixed on curtain support.
- F type portable rack curtain the most according to claim 1, it is characterized in that: the structure of buckling and locking device is: on the sidewall of fixed sleeving, be at least evenly arranged with two open-works arranged around fixed sleeving, each open-work is on the same circumference centered by the axial line of fixed sleeving, it is provided with ball in each open-work, ball can be resisted against the bottom of open-work and stretch in the inner chamber of fixed sleeving but cannot pass through open-work and fall in fixed sleeving, it is additionally provided with in the outside of fixed sleeving and can press each ball and make each ball stretch into the hold-down mechanism in fixed sleeving inner chamber, the sidewall of fixing pillar is provided with annular groove；When the fixing pillar on curtain kit inserts fixed sleeving, manipulation hold-down mechanism can make hold-down mechanism not press each ball, each ball can outwards be pushed open and insert in fixed sleeving by the front end making fixing pillar, then manipulation hold-down mechanism can make hold-down mechanism press each ball, each ball is made to stretch in the inner chamber of fixed sleeving, stretch in the annular groove on fixing pillar sidewall, so that each ball can carry out kayser to fixing pillar simultaneously.
- nullF type portable rack curtain the most according to claim 2，It is characterized in that: the structure of hold-down mechanism includes: be fixed on the installing plate on the first lock sleeve sidewall，The inner of fixed sleeving fixes with the outer surface of installing plate，At the outer sheath of fixed sleeving equipped with rotation set，Each ball is pressed by the inner side wall energy of rotation set，Each ball is stretched in fixed sleeving inner chamber，Rotation set medial wall is circumferentially gone back uniform intervals be provided with several can with each ball one_to_one corresponding and ball will not be pressed dodge breach，When each ball is pressed by the medial wall of rotation set，Rotation set is in pressed state，When each on rotation set dodge breach move make ball not be pressed to each self-corresponding ball time，Rotation set is in decompressed state，Rotation set can be made to change between pressed state and decompressed state by rotating rotation set，Rotation set is additionally provided with the resilient retention mechanism that rotation set can be made to keep pressed state.
- nullF type portable rack curtain the most according to claim 3，It is characterized in that: the structure of resilient retention mechanism is: be provided with spring fixed column on the installing plate outer surface of rotation set side，The lateral wall of rotation set is provided with spring dead plate，The lateral wall of rotation set is additionally provided with a gag lever post，The outer end of gag lever post is provided with the positive stop lug boss towards installing plate projection，Positive stop lug boss is positioned at the side of installing plate，Positive stop lug boss can lean with the installing plate sidewall of respective side after rotating along with rotation set，Stretching spring it is arranged with outside rotation set between spring fixed column and spring dead plate，One end of stretching spring fixes with spring dead plate，The other end of stretching spring fixes with spring fixed column，The position that the installing plate sidewall that stretching spring can make rotation set rotate forward to positive stop lug boss Yu respective side leans，And positive stop lug boss can be made to keep the state leant with installing plate sidewall，And now rotation set is in pressed state，Only after overcoming the elastic force stretching spring and manually reversely rotating rotation set，Rotation set just can be made to change to decompressed state.
- F type portable rack curtain the most according to claim 4, it is characterised in that: on the lateral wall of rotation set, it is additionally provided with the shutter that can shelter from stretching spring.
- 6. according to the F type portable rack curtain described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that: bracing frame is the collapsible tripod closed up.
- 7. according to the F type portable rack curtain described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that: the handle that can conveniently move up and down the first lock sleeve it is provided with in the outside of the first lock sleeve.
- 8. according to the F type portable rack curtain described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that: on the first cam and the second cam, it is provided with the handle that can conveniently rotate cam.
- F type portable rack curtain the most according to claim 7, it is characterised in that: on the first cam and the second cam, it is provided with the handle that can conveniently rotate cam.
- 10. according to the F type portable rack curtain described in claim 3 or 4 or 5, it is characterised in that: on the lateral wall of fixed sleeving, it is additionally provided with the jump ring that rotation set can be prevented from the landing of fixed sleeving outer end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610513585.6A CN105974726B (en) | 2016-07-04 | 2016-07-04 | F types portable rack curtain |
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|---|---|---|---|
| CN201610513585.6A CN105974726B (en) | 2016-07-04 | 2016-07-04 | F types portable rack curtain |
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| CN105974726A true CN105974726A (en) | 2016-09-28 |
| CN105974726B CN105974726B (en) | 2017-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367896A (en) * | 2017-07-25 | 2017-11-21 | 张家港宝视特影视器材有限公司 | Fast Installation folding portable curtain support |
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| GB2076179A (en) * | 1980-05-20 | 1981-11-25 | Mekania Verken Ab | Projection Screen Assembly |
| CN200959065Y (en) * | 2006-10-21 | 2007-10-10 | 广州美视晶莹银幕有限公司 | Stand-liftable projection screen |
| CN103791210A (en) * | 2014-02-13 | 2014-05-14 | 江苏红叶视听器材股份有限公司 | Positioning device based on projection support |
| CN103791209A (en) * | 2014-02-13 | 2014-05-14 | 江苏红叶视听器材股份有限公司 | Positioning device of projection support |
| CN103791208A (en) * | 2014-02-13 | 2014-05-14 | 江苏红叶视听器材股份有限公司 | Screen board support |
| TWM506304U (en) * | 2014-12-08 | 2015-08-01 | Bright Supply Corp | Expandable stand for display screen |
| CN205910488U (en) * | 2016-07-04 | 2017-01-25 | 张家港宝视特影视器材有限公司 | Portable support curtain of F type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367896A (en) * | 2017-07-25 | 2017-11-21 | 张家港宝视特影视器材有限公司 | Fast Installation folding portable curtain support |
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| Publication number | Publication date |
|---|---|
| CN105974726B (en) | 2017-09-29 |
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