TWM655071U - Adjustment mechanism and spherical curved surface projection device having the same - Google Patents

Abstract

An adjustment mechanism and a spherical curved surface projection device having the adjustment mechanism, the spherical curved surface projection device comprising four pillars erected on the ground and extending in the up-down direction, four adjustment mechanisms respectively arranged on the pillars, an outer ring frame arranged on the adjustment mechanisms and in the shape of a rectangular frame, and a spherical curved surface structure connected to the outer ring frame and in the shape of a hemisphere. Each adjustment mechanism comprises a bearing plate, and two sliding sleeves arranged at intervals along an adjustment axis on opposite sides of the bearing plate, one of the sliding sleeves can be slidably sleeved on the corresponding pillar up and down. Any sliding sleeve can rotate relative to another sliding sleeve along the adjustment axis. The outer ring frame passes through the sliding sleeves of the adjustment mechanisms that are not connected to the pillars. The adjustment mechanisms can be used to adjust the inclination angle between the spherical curved surface structure and the ground during installation.

Description

Adjustment mechanism and spherical curved surface projection device having the same

The invention relates to an adjustment mechanism and an immersive theater equipment with the adjustment mechanism, in particular to an adjustment mechanism and a spherical curved surface projection device with the adjustment mechanism.

Generally, a large theater-grade spherical curved projection device is composed of a steel frame frame, which usually uses radial and circumferential steel frames to form the longitude and latitude of the spherical screen. Some spherical curved projection devices also use a truss reinforcement structure that cross-connects the steel frames to form a hemispherical steel frame structure. However, the aforementioned spherical curved projection device cannot adjust the angle between the spherical screen and the ground, that is, the central axis of the spherical screen must be perpendicular to the ground. As a result, the spherical curved projection device is limited in practical application and it is difficult to achieve the best viewing effect for different visual effects or entertainment content.

Therefore, the object of the present invention is to provide an adjustment mechanism for adjusting the angle of a spherical surface in a spherical surface projection device.

Therefore, the novel adjustment mechanism includes a bearing plate and two sliding sleeves spaced apart along an adjustment axis on opposite sides of the bearing plate. The central axes of the sliding sleeves are mutually skewed, and any sliding sleeve can rotate relative to the other sliding sleeve along the adjustment axis.

Another object of the present invention is to provide a spherical curved surface projection device having the adjustment mechanism.

Therefore, the new spherical curved surface projection device includes four pillars erected on the ground and extending in the vertical direction, four adjustment mechanisms respectively arranged on the pillars, an outer ring frame arranged on the adjustment mechanisms and in the shape of a rectangular frame, and a spherical curved surface structure connected to the outer ring frame and in the shape of a hemisphere. Each adjustment mechanism includes a bearing plate, and two sliding sleeves arranged at intervals along an adjustment axis on opposite sides of the bearing plate, one of the sliding sleeves can be slidably sleeved on the corresponding pillar up and down, the central axes of the sliding sleeves are mutually skewed, any sliding sleeve can rotate along the adjustment axis relative to another sliding sleeve, and the adjustment axes of the adjustment mechanisms are coplanar. The outer ring frame passes through the sliding sleeves of the adjustment mechanisms that are not connected to the pillars.

The utility model has the following effects: when installing the spherical curved surface projection device, the relative angles of the two sliding sleeves of each adjustment mechanism can be adjusted as required, and then the outer ring frame is arranged on the corresponding sliding sleeves. Since the adjustment axes are coplanar and the outer ring frame is in the shape of a rectangular frame, after the outer ring frame is installed, the two sliding sleeves of each adjustment mechanism can no longer rotate relative to each other through the freedom restriction of the mechanism, thereby making the outer ring frame present a fixed tilt angle, thereby making the spherical curved surface structure arranged on the outer ring frame able to clamp the ground to form a required tilt angle, thereby increasing the variability in installation, and when the tilt angle needs to be changed, it is only necessary to reinstall and adjust the angle without using other components, and it is highly versatile and conducive to modularization.

Referring to Fig. 1, Fig. 2, and Fig. 3, an embodiment of the novel spherical curved surface projection device comprises four pillars 1 erected on the ground at intervals from each other horizontally and extending in the vertical direction, four adjustment mechanisms 2 respectively arranged on the pillars 1, an outer ring frame 3 arranged on the adjustment mechanisms 2, and a spherical curved surface structure 4 arranged on the outer ring frame 3. Each pillar 1 comprises a support part 11 erected on the ground, a base part 12 connected to the top end of the support part 11, a plurality of column frame parts 13 stacked up and down, and a plurality of joint parts 14 inserted between two adjacent column frame parts 13 to connect the column frame parts 13. The maximum outer diameter of the base part 12 in the horizontal direction is larger than the maximum outer diameter of each column frame part 13 in the horizontal direction, and is connected to the column frame part 13 located at the bottom. Each joint portion 14 is in the shape of a latch, and two ends thereof are respectively inserted into the top surface and the bottom surface of the two adjacent column frames 13 .

Referring to Fig. 2, Fig. 4, and Fig. 5, each adjustment mechanism 2 includes a bearing plate 21, and two sliding sleeves 22 spaced apart on opposite sides of the bearing plate 21 along an adjustment axis A. The bearing plate 21 has a first seat plate 211, a rotation shaft 212 connected to the first seat plate 211 and having a central axis extending along the adjustment axis A, and a second seat plate 213 pivotally connected to the rotation shaft 212. The first seat plate 211 has an annular plate portion 214 parallel to the second seat plate 213 and coaxially connected to the rotation shaft 212, and a bearing plate portion 215 disposed at the top end of the annular plate portion 214 and extending in the horizontal direction. The sliding sleeves 22 are locked on the support plate 215 and the second seat plate 213, respectively. The sliding sleeve 22 locked on the support plate 215 is sleeved on the outer ring frame 3 (please refer to FIG. 1), and the sliding sleeve 22 locked on the second seat plate 213 is sleeved on one of the pillars 1. The central axes of the sliding sleeves 22 are mutually skewed. Since the second seat plate 213 is pivoted on the rotation axis 212, the sliding sleeves 22 can be operated to rotate relatively with the adjustment axis A as the rotation axis 212, and the adjustment axes A of the adjustment mechanisms 2 will be located on the same plane.

Referring to FIG. 1 , FIG. 2 , and FIG. 6 , each sliding sleeve 22 has four mutually parallel and equally spaced side frames 221, four mounting plates 222 each locked on two adjacent side frames 221, eight end seats 223 locked on the side frames 221 in pairs, and a plurality of pulleys 224 pivotally mounted on the end seats 223. Each end seat 223 is connected to two adjacent side frames 221. Two end seats 223 in each group are connected to the same two side frames 221 and a corresponding mounting plate 222. The rotation axis of each pulley 224 is perpendicular to the two adjacent side frames 221. The side frames 221, the mounting plates 222, and the end seats 223 define a sleeve space 225, and the pulleys 224 are partially exposed in the sleeve space 225. The sliding sleeve 22 arranged on the pillar 1 is sleeved on one of the column frame parts 13, and the pulleys 224 are in rolling contact with the column frame part 13. The column frame parts 13 can pass through the sleeve space 225, so that the sliding sleeve 22 can move up and down along the column frame parts 13 by the pulleys 224 without other restrictions, while the outer diameter of the base part 12 is larger than the sleeve space 225 and cannot pass through, so that the sliding sleeve 22 is placed on the base part 12 without force.

Referring to Fig. 7, Fig. 8, and Fig. 9, the outer ring frame 3 includes four extension frames 31 respectively passing through the sleeve spaces 225 (see Fig. 6) of the corresponding four sliding sleeves 22 of the adjustment mechanisms 2, four corner seats 32 each connected to two adjacent extension frames 31, and a plurality of connection components 33 erected on the extension frames 31. Each extension frame 31 has a plurality of base frame portions 311 adjacent to each other in the horizontal direction, and a plurality of tenon portions 312 inserted between two adjacent base frame portions 311 to connect the base frame portions 311. One of the base frame portions 311 is sleeved by the corresponding sliding sleeve 22, and the pulleys 224 (see Fig. 6) are in rolling contact with the base frame portion 311. The base frame parts 311 can pass through the sleeve space 225, so that the sliding sleeve 22 can move horizontally along the base frame parts 311 through the pulleys 224 without other restrictions. Each mortise and tenon part 312 is in the shape of a latch, and the two ends are respectively inserted into the end surfaces of two adjacent base frame parts 311. The angle seats 32 are respectively located at four corners to connect the extension frames 31 to form a square frame shape. Each connecting assembly 33 has a seat plate 331 placed on the corresponding base frame part 311, two fixing clamps 332 that are detachably connected to the bottom surface of the seat plate 331 and cooperate with the seat plate 331 to clamp the base frame part 311, a directional seat 333 locked on the seat plate 331, and a connecting arm 334 that is telescopically arranged on the directional seat 333 and extends radially inward. The locking points of the directional seat 333 and the seat plate 331 are arranged in a circular direction with respect to the central axis of the seat plate 331 , so the directional seat 333 can rotate with the central axis of the seat plate 331 as the rotation axis 212 to adjust the deflection angle of the assembly arm 334 and then be locked and fixed on the seat plate 331 .

Referring to Fig. 1, Fig. 7, and Fig. 10, the spherical curved surface structure 4 includes a bottom ring frame 41 surrounded by the outer ring frame 3 and connected to the assembly arms 334, and a hemispherical frame seat 42 fixed to the bottom ring frame 41. The bottom ring frame 41 has a plurality of engagement seats 411 arranged in a ring shape and spaced apart from each other, a plurality of cross-frame portions 412 each connected to two adjacent engagement seats 411, and a plurality of connecting portions 413 extending upwardly and radially inwardly from the engagement seats 411 and connected to the hemispherical frame seat 42. Several of the engagement seats 411 are locked to the assembly arms 334, respectively.

Referring to Fig. 1, Fig. 11, and Fig. 12, the hemispherical frame seat 42 has a plurality of flap frames 421 arranged in an annular manner adjacent to each other and each in a spherical triangle shape, a top seat 422 connected to the top ends of the flap frames 421, a plurality of connecting seats 423 arranged on the flap frames 421, and a plurality of trusses 424 connecting the flap frames 421 and the connecting seats 423. As shown in Fig. 11, each flap frame 421 has three segment structures 425 arranged in an adjacent manner in a radial direction. Each connecting seat 423 has a fixing plate 426, and two seat tenons 427 arranged on the fixing plate 426 in an angle-adjustable manner and extending in an annular direction. The fixing plate 426 is provided with two turning arc grooves 428 and two auxiliary arc grooves 429. Each turning arc groove 428 is adjacent to one of the auxiliary arc grooves 429 and has the same center of curvature. Each seat tenon 427 is slidably locked in one of the turning arc grooves 428 and the auxiliary arc groove 429 adjacent to the turning arc groove 428. Through this design, the seat tenon 427 can slide along the turning arc groove 428 when the bolt is not inserted into the auxiliary arc groove 429, thereby rotating the angle. After two bolts are inserted into the auxiliary arc grooves 429 and locked, the seat tenon 427 is limited to a fixed angle. Each connecting seat 423 can be connected to two or four adjacent segment structures 425 depending on the setting position. When the connecting seat 423 is connected to two segment structures 425, the design shown in Figure 12 can be adopted, wherein each seat tenon 427 clamps and fixes two adjacent segment structures 425 in the radial direction. The design of the seat tenons 427 with adjustable angles can adapt to segment structures 425 of different shapes, achieving high versatility.

Referring to FIG. 1 , FIG. 11 , and FIG. 13 , when the connection seat 423 is connected to four segment structures 425 , the design shown in FIG. 13 can be adopted, and the seat tenons 427 are used to fix two different adjacent petal frames 421 , respectively, and each seat tenon 427 clamps two segment structures 425 of the same petal frame 421 . In addition, the connection seat 423 is also provided with two fixing seats 420 fixed on the fixing plate 426 without adjusting the angle, and each fixing seat 420 clamps and fixes two segment structures 425 of different petal frames 421 in the circumferential direction so that they are close together in the circumferential direction. Through the connection seats 423 , the segment structures 425 can be close together and fixed into a spherical triangle, and the petal frames 421 can be close together and fixed into a hemispherical shape. One end of each truss 424 is connected to one of the segment structures 425 , and the other end is locked on the connecting seat 423 connecting the two segment structures 425 .

Referring again to FIG. 1, FIG. 2, and FIG. 7, the method of adjusting and installing the present embodiment is described below. First, the pillars 1 are set at four positions. At this time, each pillar 1 has only one pillar frame portion 13 connected to the base portion 12. Then, the sliding sleeve 22 of each adjustment mechanism 2 set on the second seat plate 213 is sleeved on the pillar frame portion 13 of the corresponding pillar 1, and the other pillar frame portions 13 and the tenon portions 14 are overlapped on the pillar frame portion 13, so that the pillars 1 reach a predetermined height. In addition, the four base frame parts 311 are respectively inserted into the remaining four sliding sleeves 22, and then the two sliding sleeves 22 are relatively rotated along the adjustment axis A for each adjustment mechanism 2 so that the sliding sleeves 22 present the required angles. At this time, the sliding sleeves 22 mounted on the pillars 1 are pressed against the base part 12 due to their own weight.

Referring to FIG. 1 , FIG. 7 , and FIG. 14 , a plurality of lifting rings are locked on the sliding sleeves 22 disposed on the pillars 1 , and force is applied to the lifting rings through a tool to lift the sliding sleeves 22 to the desired height position. At this time, the adjustment mechanisms 2 can be divided into groups of two, and the same group of adjustment mechanisms 2 is located at the same height position. After positioning, the base frame parts 311 and the tenon parts 312 (see FIG. 8 ) are combined into the extension frames 31, and the extension frames 31 are connected with the angle seats 32 so that the whole is in a square frame shape. When the hanging rings are no longer suspended, the lower adjustment mechanism 2 of the same group will descend until the sliding sleeves 22 are against the base parts 12 again. Since the length of the extension frames 31 connecting different groups of adjustment mechanisms 2 and the distance between the two corresponding pillars 1 are fixed, the sliding sleeves 22 of the other group of adjustment mechanisms 2 at a higher position will be positioned at a higher position due to the limitation of the degree of freedom, so that the outer ring frame 3 is tilted as shown in FIG. 14 .

Referring to FIG. 1 , FIG. 9 , and FIG. 15 , after adjusting the directions of the directional seats 333 and the extension lengths of the assembly arms 334 according to the degree of inclination, the bottom ring frame 41 is first coupled to the assembly arms 334 , and then the hemispherical frame seat 42 is coupled to the bottom ring frame 41 , thereby allowing the central axis of the spherical curved surface structure 4 to be clamped at a desired angle with the ground (of course, it can also be parallel to the ground), and at the same time, the horizontal deviation of the spherical curved surface structure 4 can be fine-tuned. When the tilt angle needs to be changed, it is only necessary to readjust the angle between the sliding sleeves 22 of each adjustment mechanism 2 and increase or decrease the number of the base frame parts 311 or the column frame parts 13. This modular design is conducive to the user to freely adjust according to their needs, avoiding the situation where the spherical curved surface projection device needs to be completely replaced, greatly reducing costs and construction time.

In summary, each adjustment mechanism 2 can adjust the relative angle between the sliding sleeves 22 along the adjustment axis A, so that the spherical curved surface structure 4 of the assembled spherical curved surface projection device is tilted at a specific angle relative to the ground, and the adjustable design of the connecting components 33 can further fine-tune the position of the spherical curved surface structure 4. This design that is easy to adjust and modular can greatly improve the versatility of the new model, so it can indeed achieve the purpose of the new model.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.

1: Pillar 11: Scaffold 12: Base 13: Column frame 14: Joint 2: Adjustment mechanism 21: Bearing plate 211: First seat plate 212: Rotating shaft 213: Second seat plate 214: Ring plate 215: Bearing plate 22: Sliding sleeve 221: Side frame 222: Mounting plate 223: End seat 224: Pulley 225: Sleeve space 3: Outer ring frame 31: Extension frame 311: Base frame 312: Tenon 32: Angle seat 33: Connection assembly 331: Seat plate 332: Fixed clamp 333: Orientation seat 334: Assembly arm 4: Spherical curved surface structure 41: Bottom ring frame 411: Joint seat 412: Cross frame 413: Anchor 42: Hemispherical frame seat 420: Fixed seat 421: Petal frame 422: Top seat 423: Connecting seat 424: Truss 425: Segment structure 426: Fixed plate 427: Seat tenon 428: Turning arc groove 429: Auxiliary arc groove A: Adjust axis

Other features and functions of the present invention will be clearly presented in the implementation method of the reference drawings, in which: Figure 1 is a three-dimensional diagram illustrating an implementation example of the spherical curved surface projection device of the present invention; Figure 2 is a three-dimensional diagram illustrating a support and an adjustment mechanism in the implementation example; Figure 3 is an incomplete three-dimensional diagram further illustrating the assembly method of the support; Figure 4 is a three-dimensional diagram illustrating a bearing plate in the implementation example; Figure 5 is a side view cross-sectional diagram illustrating the side view cross-sectional state of Figure 4; Figure 6 is a three-dimensional diagram illustrating one of the sliding sleeves in the adjustment mechanism; Figure 7 is a top view illustrating an outer ring frame in the implementation example; Figure 8 is an incomplete three-dimensional diagram illustrating the assembly method of the outer ring frame; Figure 9 is a three-dimensional diagram illustrating a connecting component in the implementation example; FIG. 10 is a three-dimensional diagram illustrating a bottom ring frame in the embodiment; FIG. 11 is a three-dimensional diagram illustrating a petal frame in the embodiment; FIG. 12 is a three-dimensional diagram illustrating a connecting seat in the embodiment; FIG. 13 is a three-dimensional diagram illustrating another aspect of the connecting seat; FIG. 14 is a side view illustrating the aspect of the embodiment after adjusting the tilt angle; and FIG. 15 is a top view illustrating the top view of FIG. 14.

1: Pillar

2: Adjustment mechanism

22: Sliding sleeve

3: Outer ring frame

4: Spherical surface structure

41: Bottom ring frame

42: Hemispherical frame seat

422: Top connector

423: Connector

424: Truss

Claims (10)

An adjustment mechanism comprises: a bearing plate; and two sliding sleeves, which are arranged at intervals on opposite sides of the bearing plate along an adjustment axis, wherein the central axes of the sliding sleeves are mutually skewed, and any sliding sleeve can rotate relative to the other sliding sleeve along the adjustment axis. An adjustment mechanism as described in claim 1, wherein the bearing plate includes a first seat plate for setting one of the sliding sleeves, a rotating shaft connected to the first seat plate and having a center axis extending along the adjustment axis, and a second seat plate pivotally connected to the rotating shaft and for setting another sliding sleeve. An adjustment mechanism as described in claim 1, wherein each sliding sleeve includes four mutually parallel and spaced-apart side frames, four mounting plates each fixed on two adjacent side frames, eight end seats arranged in groups of two on the side frames, and a plurality of pulleys pivotally mounted on the end seats, each end seat is connected to two mutually adjacent side frames, each group of two end seats is connected to the same two side frames and a corresponding mounting plate, the rotation axis of each pulley is perpendicular to the two adjacent side frames, the side frames, the mounting plates, and the end seats define a set space around which the pulleys are partially exposed. A spherical curved surface projection device comprises: Four pillars erected on the ground and extending in the vertical direction; Four adjustment mechanisms respectively arranged on the pillars, each adjustment mechanism comprising a bearing plate and two sliding sleeves arranged at intervals along an adjustment axis on opposite sides of the bearing plate, one of the sliding sleeves can be slidably sleeved on the corresponding pillar up and down, the central axes of the sliding sleeves are mutually skewed, any sliding sleeve can rotate along the adjustment axis relative to another sliding sleeve, and the adjustment axes of the adjustment mechanisms are coplanar; An outer ring frame, passing through the sliding sleeves of the adjustment mechanisms not connected to the pillars and in the shape of a rectangular frame; and A spherical curved surface structure assembled on the outer ring frame and in the shape of a hemisphere. A spherical curved surface projection device as described in claim 4, wherein the rotating plate of each adjustment mechanism includes a first seat plate for setting one of the sliding sleeves, a rotating shaft connected to the first seat plate and with the center axis extending along the adjustment axis, and a second seat plate pivotally connected to the rotating shaft and for setting another sliding sleeve. A spherical curved surface projection device as described in claim 5, wherein each sliding sleeve includes four mutually parallel and spaced-apart frames, four mounting plates each fixed on two adjacent frames, eight end seats arranged in groups of two on the frames, and a plurality of pulleys pivotally mounted on the end seats, each end seat is connected to two mutually adjacent frames, each group of two end seats is connected to the same two frames and a corresponding mounting plate, the rotation axis of each pulley is perpendicular to the two adjacent frames, the frames, the mounting plates, and the end seats surround and define a sleeve space for one of the pillars or the outer ring frame to pass through, and the pulleys are partially exposed in the sleeve space to roll in contact with the pillar or the outer ring frame. A spherical curved surface projection device as described in claim 6, wherein the outer ring frame includes four extension frames that respectively pass through the sleeve spaces of the corresponding four sliding sleeves of the adjustment mechanisms, four corner seats each connected to two adjacent extension frames, and a plurality of connecting components erected on the extension frames, each connecting component having a seat plate placed on the corresponding extension frame, at least one fixing clamp that is detachably disposed on the seat plate and cooperates with the seat plate to clamp the extension frame, an oriented seat that can be locked on the seat plate after adjusting the angle, and a connecting arm that is telescopically disposed on the oriented seat and extends radially inward to connect to the spherical curved surface structure. A spherical curved surface projection device as described in claim 7, wherein the spherical curved surface structure includes a bottom ring frame surrounded by the outer ring frame and connected to the assembly arms, and a hemispherical frame seat fixed to the bottom ring frame, the bottom ring frame having a plurality of coupling seat portions arranged in a ring shape and spaced apart from each other, a plurality of cross frame portions each connected to two adjacent coupling seat portions, and a plurality of connecting portions extending upward along the radial direction inwardly and obliquely from the coupling seat portions and connected to the hemispherical frame seat. A spherical curved surface projection device as described in claim 8, wherein the hemispherical frame seat of the spherical curved surface structure has a plurality of petal frames which are arranged in an annular manner adjacent to each other on the connecting parts and each of which is in the shape of a spherical triangle, a top connecting seat connected to the top ends of the petal frames, a plurality of connecting seats arranged on the petal frames, and a plurality of trusses connecting the petal frames and the connecting seats, wherein the two ends of each truss are respectively connected to one of the petal frames and one of the connecting seats. A spherical curved surface projection device as described in claim 9, wherein each petal frame of the hemispherical frame seat has a plurality of segment structures arranged adjacent to each other in a radial direction, each connecting seat connects two or four adjacent segment structures, the connecting seat has a fixed plate with two turning arc grooves and two auxiliary arc grooves, and two seat tenons which are arranged on the fixed plate at adjustable angles and extend circumferentially, each turning arc groove is adjacent to one of the auxiliary arc grooves and has the same center of curvature, each seat tenon is locked in one of the turning arc grooves and the auxiliary arc groove adjacent to the turning arc groove, and the seat tenon clamps two of the adjacent segment structures.