CN210626864U - Large-arc-angle screen frame capable of easily flattening soft screen - Google Patents
Large-arc-angle screen frame capable of easily flattening soft screen Download PDFInfo
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- CN210626864U CN210626864U CN201921701228.8U CN201921701228U CN210626864U CN 210626864 U CN210626864 U CN 210626864U CN 201921701228 U CN201921701228 U CN 201921701228U CN 210626864 U CN210626864 U CN 210626864U
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Abstract
The utility model relates to a screen frame field specifically is an easily put out big circular arc angle screen frame of flat soft screen in exhibition, set up the footing pole that is used for as theoretical circular arc benchmark subaerial including a plurality of groups, still include: the fixing structure is arranged on the bottom foot rod, so that the screen frame body is connected into a latticed integral structure; the enhancement structure, the setting is on fixed knot constructs, an intensity for increasing fixed knot constructs, the screen that stretches tight the screen pipe truss through lower circular arc stretches tight screen position circular arc radius and is less than the circular arc radius that the screen position was stretched tight to last circular arc pipe truss screen, make soft screen be hopper-shaped mesa on stretching tight the screen frame, can let the screen central zone that screen installation side pulling force is difficult to reach, with the help of self action of gravity, it produces perpendicular fold under the effect of self action of gravity to have solved the soft screen of ordinary orthodrome angle screen truss, and the side pulling force of soft screen installation is difficult to reach screen central zone, solve screen central zone perpendicular fold in step and be difficult to the smooth problem of exhibition.
Description
Technical Field
The utility model relates to a screen frame field specifically is a big circular arc angle screen frame of soft screen of easy exhibition flat.
Background
Generally, a soft screen needs to be hung and mounted through a screen stretching frame of a screen frame, namely, the periphery of the screen is fixed on the screen stretching frame, and the screen is tightened to the periphery, so that the screen surface of the screen is flattened, and the requirement of picture projection is met.
The arc screen is usually adopted in a common cinema, the arc angle of the screen is usually between 15 degrees and 30 degrees, therefore, the chord height ratio of the arc of the screen is usually below 10 percent, the side tension installed in the horizontal direction of the screen is easily transmitted to the central area of the screen, and the fold in the vertical direction of the screen is flattened, but because the side tension installed in the horizontal direction of the screen exists, the central area of the arc screen can bulge out towards the screen surface direction under the action of the tension of the screen surface, and the bulging distance of the general screen surface relative to the theoretical arc limit of the screen is not more than 1/50 of the theoretical arc chord height of the screen.
In order to increase the viewing field width of audiences, the arc angle of the screen of a common large-scale amusement and projection facility can reach 90 degrees, 180 degrees or even 360 degrees, but when the arc angle of the screen exceeds 90 degrees, the chord height ratio of the arc of the screen can exceed 20 percent, and the lateral tension installed in the horizontal direction of the screen is difficult to flatten the folds in the vertical direction of the screen under the condition of limiting the bulging degree of the central screen surface. Generally, when the arc angle of the screen exceeds 90 degrees, the projection distance of the central area of the screen exceeds 1/50 of the theoretical arc chord height of the screen when the screen is pulled flat, so that the projection distance of a projector changes, the picture is distorted, the projection quality is affected and the fusion of multiple projector pictures is affected, the radius of the upper arc stretched screen pipe and the lower arc stretched screen pipe are the same, and the vertical projection of the upper arc stretched screen pipe and the lower arc stretched screen pipe on the ground is coincident
Disclosure of Invention
In order to solve the problem, the utility model provides an easily open out big circular arc angle screen frame of soft screen of flat.
The utility model provides an easily open up big circular arc angle screen frame of soft screen of exhibition, includes that a plurality of groups set up and are used for the footing pole as theoretical circular arc benchmark subaerial, still includes:
the fixing structure is arranged on the bottom foot rod, so that the screen frame body is connected into a latticed integral structure;
and the reinforcing structure is arranged on the fixing structure and used for increasing the strength of the fixing structure.
The fixed structure comprises a left stretched screen pipe truss and a right stretched screen pipe truss which are arranged at the left and right boundaries of the screen picture, and a plurality of groups of stand pieces which are distributed on the screen stand frame body in an arc shape at equal intervals.
The plurality of groups of the stand pieces are distributed on the screen frame body in a ladder-shaped manner, and the stand pieces are vertically arranged on the ground.
The corner of the left stretched curtain pipe truss and the right stretched curtain pipe truss is provided with a stretched curtain pipe corner joint for connection, and the left stretched curtain pipe truss and the right stretched curtain pipe truss are provided with an upper arc stretched curtain pipe truss and a lower arc stretched curtain pipe truss which are used for communicating and supporting a curtain frame body and are parallel to the ground.
The extension lines of the lower ends of the left stretched screen pipe truss and the right stretched screen pipe truss are intersected on a ground projection point at the theoretical arc center of the screen, and the space angles formed between the normal lines of the left stretched screen pipe truss and the right stretched screen pipe truss and the normal line of the horizontal ground are not more than 5 degrees.
The screen is hung on the upper arc stretched screen pipe truss of the screen frame, the left side and the right side of the screen are respectively stretched and fixed on the left stretched screen pipe truss and the right stretched screen pipe truss by using stretched screen ropes, the lower edge of the screen is stretched and fixed by using the stretched screen ropes, and the stretched screen ropes at the lower edge of the screen are tightened on the lower arc stretched screen pipe truss by using the rope collecting device.
The upper ends of the left stretched curtain pipe truss and the right stretched curtain pipe truss are respectively pointed to arc extension lines at two ends of the upper arc stretched curtain pipe truss, and the lower ends of the left stretched curtain pipe truss and the right stretched curtain pipe truss are respectively pointed to arc extension lines at two ends of the lower arc stretched curtain pipe truss.
The upper arc-shaped stretched screen pipe truss is inclined towards the theoretical arc center direction of the screen frame body, and the inclination angle is not more than 45 degrees; the arc radius of the screen stretching position of the lower arc stretched screen pipe truss is smaller than that of the screen stretching position of the upper arc stretched screen pipe truss.
The enhancement structure including set up on the screen frame support body and respectively with a left side stretch tight screen pipe truss and right side stretch tight a plurality of groups waistband of screen pipe truss connection, arrange in between two grudging post pieces and both ends are fixed in the bridging on two grudging post pieces respectively, use the footing pole as the base, the grudging post piece is the vertical edge, the straight tube is hypotenuse formation's bearing diagonal, with the screen frame support body and the back support of installing the building body coupling fixation of back wall.
One end of the rear support can be fixed on the screen frame installation rear wall, the other end of the rear support can be fixed on the screen frame vertical frame piece or the waistband, the upper end of each vertical frame piece is provided with the waistband, and the waistband and all the vertical frame pieces are fixed in a cross mode to enable the screen frame body to be connected into a latticed integral structure.
The utility model has the advantages that: the screen that stretches tight screen pipe truss through lower circular arc stretches tight screen position circular arc radius and is less than the circular arc radius that the screen position was stretched tight to last circular arc and stretches tight screen pipe truss screen, make soft screen be hopper-shaped mesa on stretching tight the screen frame, can let the screen central zone that screen installation side tension is difficult to reach, with the help of the effect of self gravity, slow exhibition flat, it produces perpendicular fold under the effect of self gravity to have solved ordinary orthodrome angle screen frame soft screen, and the side tension of soft screen installation is difficult to reach screen central zone, solve screen central zone perpendicular fold in step and be difficult to the smooth problem of taking down to expand.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic side view of the present invention.
Detailed Description
In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.
As shown in fig. 1 to 3, a large arc angle screen frame for easily flattening a soft screen comprises a plurality of groups of bottom rods 1 arranged on a ground a and used as theoretical arc reference, and further comprises:
the fixing structure is arranged on the base foot rod 1, so that the screen frame body is connected into a latticed integral structure;
and the reinforcing structure is arranged on the fixing structure and used for increasing the strength of the fixing structure.
The fixed structure comprises a left stretched screen pipe truss 2 and a right stretched screen pipe truss 3 which are arranged at the left and right boundaries of the screen picture, and a plurality of groups of stand pieces 4 which are distributed in an arc shape at equal intervals on the screen frame body.
The plurality of groups of stand pieces 4 are distributed on the screen frame body in a ladder-shaped manner, and the stand pieces 4 are vertically arranged on the ground.
As shown in fig. 2, reference b is the radius of the lower arc stretched curtain pipe truss 7, and reference c is the radius of the lower arc stretched curtain pipe truss 6.
The screen that stretches tight screen pipe truss 7 through lower circular arc stretches tight screen position circular arc radius and is less than the circular arc radius that the screen position was stretched tight to last circular arc stretches tight screen pipe truss 6 screen, make soft screen be hopper-shaped mesa on stretching tight the screen frame, can let the screen central zone that screen installation side tension is difficult to reach, with the help of the effect of self gravity, slow exhibition flat, it produces perpendicular fold to have solved the soft screen of ordinary orthodrome angle screen frame under the effect of self gravity, and the side tension of soft screen installation is difficult to reach the screen central zone, solve screen central zone perpendicular fold in step and be difficult to the smooth problem of exhibition.
The corner of the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 is provided with a stretched curtain pipe corner joint 5 for connection, the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 are provided with an upper arc stretched curtain pipe truss 6 and a lower arc stretched curtain pipe truss 7 which are used for communicating and supporting a curtain frame body and are parallel to the ground a.
Because the central area of the screen is stretched without applying larger lateral stretching tension, the screen surface of the central area of the screen does not bulge obviously, and the screen surface can keep relatively flat under the combined action of the tension and gravity of the whole screen surface, so that the projected picture is not distorted as much as possible.
The four stretched curtain pipe angle joints 5 connect the left stretched curtain pipe truss 2, the right stretched curtain pipe truss 3, the upper arc stretched curtain pipe truss 6 and the lower arc stretched curtain pipe truss 7 into an integral stretched curtain frame.
The extension lines of the lower ends of the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 are intersected on a ground projection point at the theoretical arc center of the screen, and the space angle formed between the normal lines of the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 and the normal line of the horizontal ground a is not more than 5 degrees.
The screen is hung on the upper arc stretched screen pipe truss 6 of the screen frame, the left side and the right side of the screen are respectively stretched and fixed on the left stretched screen pipe truss 2 and the right stretched screen pipe truss 3 by using stretched screen ropes, the lower edge of the screen is stretched and fixed by using the stretched screen ropes, and the stretched screen ropes at the lower edge of the screen are tightened on the lower arc stretched screen pipe truss 7 by using the rope collecting device.
The upper ends of the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 point to the arc extension lines at the two ends of the upper arc stretched curtain pipe truss 6 respectively, and the lower ends of the left stretched curtain pipe truss 2 and the right stretched curtain pipe truss 3 point to the arc extension lines at the two ends of the lower arc stretched curtain pipe truss 7 respectively.
The upper arc stretched screen pipe truss 6 inclines towards the theoretical arc center direction of the screen frame body, and the inclination angle is not more than 45 degrees; the arc radius of the screen stretching position of the lower arc stretched screen pipe truss 7 is smaller than that of the screen stretching position of the upper arc stretched screen pipe truss 6.
The upper arc stretched screen pipe truss 6 is arranged at the top end of the screen frame vertical frame piece, namely the upper edge end of the picture.
The lower arc stretched curtain pipe truss 7 is arranged on the vertical frame piece 4 at the lower edge end of the picture.
Reinforcing structure including set up on the screen frame support body and respectively with a plurality of groups waistband 8 that left side is stretched taut curtain pipe truss 2 and right side and is stretched taut curtain pipe truss 3 and be connected, arrange in between two founding piece 4 and both ends are fixed in respectively the bridging 9 on two founding piece 4, use footing pole 1 as the base, founding piece 4 is the vertical edge, the straight tube is hypotenuse formation's bearing diagonal 11, with screen frame support body and the back support 10 of installing the building body coupling fixation of back wall.
The straight pipe is a steel pipe on the screen frame body.
The cross brace 9 ensures the stability of the curtain frame vertical frame pieces 4 in the horizontal direction, and the X-shaped cross brace 9 structure is arranged between every two vertical frame pieces 4 so as to enhance the strength of the whole structure.
The inclined support 11 is formed by connecting and fixing all the bottom foot rods 1 and the middle parts of the corresponding stand pieces 4 by using a straight pipe.
One end of the rear support 10 can be fixed on the screen frame mounting rear wall, the other end can be fixed on the screen frame vertical frame piece or the waistband 8, the upper end of each vertical frame piece 4 is provided with the waistband 8, and the waistband 8 and all the vertical frame pieces 4 are fixed in a cross mode to enable the screen frame body to be connected into a latticed integral structure.
Reinforcing structure with the screen frame support body with install the building body coupling of back wall fixed to the screen frame structure that the formation was based on footing pole 1, bearing diagonal 11 and back support 10 strengthens, with the antidumping performance of reinforcing screen frame.
The utility model discloses a use method: expand the screen and hang on the last circular arc of screen frame stretches tight on screen pipe truss 6, stretch tight the screen rope with the left and right sides of screen respectively again and fix on left side stretches tight screen pipe truss 2 and right side stretches tight screen pipe truss 3, finally, stretch tight the screen rope with stretching tight below the screen and fix on circular arc stretches tight screen pipe truss 7 down, and tighten up the screen rope that stretches tight at border under the screen with receiving the rope ware, with appropriate screen tension, the gravity of balanced screen self, make the screen face can not form the sunken form under the influence of dead weight, finally accomplish the screen installation.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an easily open out big circular arc angle screen frame of soft screen of flat, includes that a plurality of groups set up footing pole (1) that are used for as theoretical circular arc benchmark on ground (a), its characterized in that: further comprising:
the fixing structure is arranged on the base foot rod (1) to connect the screen frame bodies into a latticed integral structure;
and the reinforcing structure is arranged on the fixing structure and used for increasing the strength of the fixing structure.
2. The screen frame of claim 1, wherein the screen frame is adapted to facilitate flattening of the soft screen, and comprises: the fixed structure comprises a left stretched screen pipe truss (2) and a right stretched screen pipe truss (3) which are arranged at the left and right boundaries of the screen picture, and a plurality of groups of stand pieces (4) which are distributed in an arc shape at equal intervals on the screen frame body.
3. The screen frame of claim 2, wherein the screen frame is adapted to facilitate flattening of the soft screen, and comprises: the plurality of groups of the vertical frame pieces (4) are distributed on the screen frame body in a ladder-shaped manner, and the vertical frame pieces (4) are vertically arranged on the ground.
4. The screen frame of claim 2, wherein the screen frame is adapted to facilitate flattening of the soft screen, and comprises: the corner of the left stretched curtain pipe truss (2) and the right stretched curtain pipe truss (3) is provided with a stretched curtain pipe corner joint (5) for connection, and the left stretched curtain pipe truss (2) and the right stretched curtain pipe truss (3) are provided with an upper arc stretched curtain pipe truss (6) and a lower arc stretched curtain pipe truss (7) which are used for communicating and supporting a curtain frame body and are parallel to the ground (a) between.
5. The screen frame of claim 2, wherein the screen frame is adapted to facilitate flattening of the soft screen, and comprises: the extension lines of the lower ends of the left stretched screen pipe truss (2) and the right stretched screen pipe truss (3) are intersected on a ground projection point at the theoretical arc center of the screen, and the space angles formed between the normal lines of the left stretched screen pipe truss (2), the right stretched screen pipe truss (3) and the horizontal ground (a) are not more than 5 degrees.
6. The screen frame of claim 4, wherein the screen frame is capable of easily flattening the soft screen, and comprises: the screen is hung on an upper arc stretched screen pipe truss (6) of the screen frame, the left side and the right side of the screen are respectively stretched and fixed on a left stretched screen pipe truss (2) and a right stretched screen pipe truss (3) by using stretched screen ropes, the lower edge of the screen is stretched and fixed by using the stretched screen ropes, and the stretched screen ropes at the lower edge of the screen are tightened on a lower arc stretched screen pipe truss (7) by using a rope winder.
7. The screen frame of claim 4, wherein the screen frame is capable of easily flattening the soft screen, and comprises: the upper ends of the left stretched curtain pipe truss (2) and the right stretched curtain pipe truss (3) respectively point to arc extension lines at two ends of an upper arc stretched curtain pipe truss (6), and the lower ends of the left stretched curtain pipe truss (2) and the right stretched curtain pipe truss (3) respectively point to arc extension lines at two ends of a lower arc stretched curtain pipe truss (7).
8. The screen frame of claim 4, wherein the screen frame is capable of easily flattening the soft screen, and comprises: the upper arc stretched screen pipe truss (6) inclines towards the theoretical arc center direction of the screen frame body, and the inclination angle is not more than 45 degrees; the arc radius of the screen stretching position of the lower arc stretched screen pipe truss (7) is smaller than that of the screen stretching position of the upper arc stretched screen pipe truss (6).
9. The screen frame of claim 2, wherein the screen frame is adapted to facilitate flattening of the soft screen, and comprises: reinforcing structure including set up on the screen frame support body and respectively with a plurality of groups waistband (8) that the screen pipe truss (2) and the right side are stretched taut and the screen pipe truss (3) is connected, arrange in between two founding pieces (4) and both ends are fixed in respectively scissor support (9) on two founding pieces (4), use footing pole (1) as the base, founding piece (4) is the vertical edge, the straight tube is right angled triangle's that the hypotenuse formed bearing (11), support (10) after the building body coupling of screen frame support body and installation back wall is fixed.
10. The screen frame of claim 9, wherein the screen frame is adapted to facilitate flattening of the soft screen by: one end of the rear support (10) can be fixed on a screen frame installation rear wall, the other end of the rear support can be fixed on a screen frame vertical frame sheet or a waistband (8) and the upper end of each vertical frame sheet (4) is provided, and the waistband (8) and all the vertical frame sheets (4) are fixed in a crossed mode to enable the screen frame body to be connected into a latticed integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921701228.8U CN210626864U (en) | 2019-10-11 | 2019-10-11 | Large-arc-angle screen frame capable of easily flattening soft screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921701228.8U CN210626864U (en) | 2019-10-11 | 2019-10-11 | Large-arc-angle screen frame capable of easily flattening soft screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210626864U true CN210626864U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921701228.8U Active CN210626864U (en) | 2019-10-11 | 2019-10-11 | Large-arc-angle screen frame capable of easily flattening soft screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210626864U (en) |
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2019
- 2019-10-11 CN CN201921701228.8U patent/CN210626864U/en active Active
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