CN211831139U - Double-direction adjusting hanging device for film projection stereo sound reproduction medium plastic shell - Google Patents
Double-direction adjusting hanging device for film projection stereo sound reproduction medium plastic shell Download PDFInfo
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- CN211831139U CN211831139U CN202020301787.6U CN202020301787U CN211831139U CN 211831139 U CN211831139 U CN 211831139U CN 202020301787 U CN202020301787 U CN 202020301787U CN 211831139 U CN211831139 U CN 211831139U
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Abstract
The utility model discloses a film projection stereo sound reproduction medium-sized plastic shell double-tone is to cable suspension device, include: the top end of the hanging screw assembly is fixedly arranged on the base beam at the hanging side and comprises a hanging side mounting piece, a connecting rod piece and a first connecting piece from top to bottom; the loudspeaker box suspension assembly comprises two support arms which semi-encircle the loudspeaker box, the upper end parts of the support arms are integrally formed, and a vertical surface for connecting the suspension screw rod assembly is arranged, and the vertical surface is rotatably connected with the lower end of the first connecting piece, so that the loudspeaker box suspension assembly rotates along the left and right direction relative to the first connecting piece; and the sound box connecting parts are arranged on two sides of the sound box and are rotationally connected with the tail ends of the supporting arms, so that the sound box rotates along the pitching direction relative to the supporting arms. The utility model discloses sound construction is reliable, connects simple and direct convenience, and application effect and prospect are good.
Description
Technical Field
The utility model relates to a cinema's sound equipment configuration device especially relates to a film projection stereo sound is returned medium-sized shell bitonic to cable suspension device.
Background
With the rapid development of the film technology at home and abroad, 3D films are increasingly put into the market, and the film stereo sound reproduction technology also spans the initial 5.1 sound channel and 7.1 sound channel and expands towards multi-azimuth and three-dimensional directions. The film industry at home and abroad has many companies to successively launch a new generation of three-dimensional space-based sound format, and the current film market is popular with panoramic sound, ambient sound, Chinese multidimensional sound … and the like. In order to make the audience feel vivid and personally-on-the-scene sound and image effects when sitting in a movie theater movie room, the new generation of movie stereo sound reproduction technology provides corresponding technical specifications for sound reproduction equipment configuration, wherein the sound reproduction equipment configuration comprises the hanging quantity, the hanging point position, the hanging height and the hanging directivity of a surround sound speaker of the movie theater, and strict requirements are met.
The construction of the cinema is a complex system project, and all the constructed movie halls have the same size, length, width and height. Under the constraint of a certain space-time condition, the situation that a plurality of point-position (8-18) surround sound speakers are configured and hung is often a headache. Whether in the process of decoration in a photo hall or after finishing decoration, the work is generally operated by only one person independently due to condition limitation. The loudspeaker box is hung at a height of 3-8 m, after the pitch angle and the left and right directions (namely directivity) are preliminarily adjusted, the loudspeaker box is further matched with sound returning debugging to carry out secondary and tertiary fine adjustment of the azimuth, so that the technical specification requirement is met.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problem that exists among the prior art, the utility model aims at providing a film projection stereo returns sound medium-sized mould shell bitonic to cable suspension device that certain mould shell audio amplifier arranged as the location that the cinema top encircleed among the stereo sound equipment of being applicable to cinema to realize accurate, repeated positioning, make things convenient for the aerial work, improve the construction security.
The technical scheme is as follows: a film projection stereo sound reproduction medium-sized plastic shell double-direction hanging device comprises:
the top end of the hanging screw assembly is fixedly arranged on the base beam at the hanging side and comprises a hanging side mounting piece, a connecting rod piece and a first connecting piece from top to bottom;
the loudspeaker box suspension assembly comprises two support arms which semi-encircle the loudspeaker box, the upper end parts of the support arms are integrally formed, and a vertical surface for connecting the suspension screw rod assembly is arranged, and the vertical surface is rotatably connected with the lower end of the first connecting piece, so that the loudspeaker box suspension assembly rotates along the left and right direction relative to the first connecting piece;
and the sound box connecting parts are arranged on two sides of the sound box and are rotationally connected with the tail ends of the supporting arms, so that the sound box rotates along the pitching direction relative to the supporting arms.
Further, hang side installed part including installing first pendant and the second pendant in the base roof beam left and right sides, the size looks adaptation of first pendant and second pendant is connected by the fastener, and the bolt hole has been seted up to the bottom of first pendant or second pendant for connect the member.
Furthermore, the connecting rod piece adopts an M8 hanging bar screw, and two ends of the connecting rod piece are respectively connected with the hanging side mounting piece and the first connecting piece through an M8 locking nut.
Furthermore, the first connecting piece is of a panel structure, a first bolt mounting hole is formed in the position of a rotating connecting point of the first connecting piece and the vertical surface 88.06 of the loudspeaker box suspension assembly, and the first connecting piece and the vertical surface are connected through a fastener bolt pair.
Furthermore, be equipped with first arc wall on the perpendicular, the centre of a circle that the circular arc of this first arc wall corresponds overlaps with first bolt mounting hole, and the position department corresponding with first arc wall on first connecting piece has seted up first arc wall bolt hole, and fastener bolt pair passes first arc wall and first arc wall bolt hole, fixes the relative rotation of first connecting piece and audio amplifier suspension unit. Preferably, the groove edge of the first arc-shaped groove is engraved with an angle mark.
Furthermore, the sound box connecting part is of a plate-shaped structure, a second bolt mounting hole is formed in the position of the rotating connecting point of the supporting arm and the sound box connecting part, and the supporting arm and the sound box connecting part are connected through a fastener bolt pair.
Furthermore, a second arc-shaped groove is formed in the sound box connecting part, the circle center corresponding to the arc of the second arc-shaped groove is overlapped with the second bolt mounting hole, a second arc-shaped groove bolt hole is formed in the position, corresponding to the second arc-shaped groove, of the supporting arm, the fastener bolt pair penetrates through the second arc-shaped groove and the second arc-shaped groove bolt hole, and the sound box connecting part and the sound box suspension assembly are fixed to rotate relative to each other. Preferably, the groove edge of the second arc-shaped groove is engraved with an angle mark.
Preferably, the bolt and the nut of the fastener bolt pair are fixed by spot welding when being prefabricated in a factory.
Has the advantages that: the utility model discloses follow strictly at present to the requirement principle and the purpose of encircleing audio amplifier linkage and carry out the manufacturing design, compare with prior art, have following advantage:
1) the top is hung around the hanging, the requirement of fixed firmness between the device and the video hall roof and the sound box is met, the randomness of the height of the decoration ceiling layer of each video hall can be considered, the height-adjustable function is realized, the high-altitude double-hand installation operation action (the gravity center is removed in a volatile mode when the device is not supported) is avoided to the maximum extent, and the safety is improved.
2) Aiming at the modeling characteristics of the ring-wound sound box (plastic shell, 4288 type), two handles are removed from the original configuration, mounting holes on two sides of the original fixed handle of the box body are used as connecting force points of a suspension bracket, and an arm which is close to and semi-encircles the sound box is adopted to support the sound box, so that the difficult problems that the sound box is heavier (20 kg) and has no suspension function in the original modeling are solved.
3) The audio amplifier possesses the dual direction function, promptly: the pitch angle is adjustable, and the left and right directions are adjustable (even if the sound box has directivity in any direction).
4) Considering that the installation of the surrounding sound box is in the working condition of high-altitude operation, and the subsequent secondary and tertiary fine adjustment needs are needed when an instrument is adopted to carry out sound field debugging after the sound box is suspended and fixed for the first time, the operations are generally independently completed by an operator on the herringbone ladder, the device design avoids the operation without supporting two hands of the operator to the maximum extent, the possibility of losing the center of gravity is reduced, and the safety of the high-altitude operation is considered.
5) Due to the symmetrical characteristic of the movie stereo sound reproduction equipment to the arrangement of the surrounding sound boxes and the requirement of sound box maintenance, disassembly and re-restoration, the device has a position memory function.
6) The composition of the constituting device and the materials used are considered: the selected material is light and thin, but has enough strength and rigidity; the components are prefabricated by factories to the maximum extent, must be prepared on site, and are universal, common and easily purchased materials in urban and rural building material stores.
Drawings
FIG. 1 is an assembled front view of a dual orientation hanger;
FIG. 2 is an assembled side view of the dual orientation hanger;
fig. 3 is a schematic structural view of the hanger-side mounting member, in which (a) is a front view, (b) is a side view, and (c) is a plan view of the first hanger and the second hanger when they are mounted.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, 2 and 3, the medium-sized plastic shell dual-direction hanging device for stereophonic sound reproduction of film projection comprises a hanging screw assembly, a sound box hanging assembly and a sound box connecting component.
The hanging screw assembly comprises hanging side installation pieces (HD 01.1-HD 01.4), a connecting rod piece HD02 and a first connecting piece 88.07.
The auditorium with ceiling surround is equipped with 2 rows of square tubes (50 x 50 or 50 x 80) fixed in the space above the suspended ceiling surround (typically above the finished ceiling floor structure) as base beams for the suspended side surround, rear surround enclosures. The base beam is transversely welded with a certain number of lug plates with the thickness of 5mm, and the lug plates are firmly fixed on a building structure floor plate by expansion nails through pre-drilling holes in the lug plates, so that a gap of 5mm exists between a square pipe and the floor plate.
The first pendant HD01.1 and the second pendant HD01.2 are respectively inserted from the two sides of the section of the square tube and the clearance above the square tube in a staggered manner, then the first pendant and the second pendant move axially and oppositely to enable the S lines at the tops of the two pendants to be matched, the first bolt HD01.3 and the second bolt HD01.4 are screwed, and the pendants (HD01.2 and HD01.2) can firmly hold the square tube. And selecting a screw rod with a proper length according to the height requirement of the top surrounding design, wherein in the embodiment, an M8 hanging bar screw rod for a general decoration hanging top is adopted as a connecting rod HD02, and after M8 locking nuts are screwed at two ends respectively, a first connecting piece 88.07 is connected to form a complete hanging screw rod assembly.
The loudspeaker suspension assembly comprises two support arms 88.04 which semi-surround the loudspeaker, the ends of the support arms are integrally formed, and a vertical surface 88.06 for connecting the suspension screw assembly is arranged, and preferably, the vertical surface 88.06 and the support arms 88.04 are integrally formed. The vertical surface 88.06 is pivotally connected to the lower end of the first link 88.07 such that the speaker suspension assembly pivots in a side-to-side direction relative to the first link.
And the sound box connecting parts are arranged on two sides of the 4288 type plastic shell sound box and are in rotary connection with the tail ends of the supporting arms 88.04, so that the sound box rotates along the pitch direction relative to the supporting arms 88.04.
In this embodiment, the first connecting member 88.07 is a panel structure, and a first bolt mounting hole 1 is formed at a position of a rotational connection point of the first connecting member 88.07 and the vertical surface 88.06 of the speaker suspension assembly, and the first connecting member 88.07 and the vertical surface 88.06 are connected by a fastener-bolt pair. First arc wall 2 has been seted up on perpendicular 88.06, and the centre of a circle that the circular arc of this first arc wall 2 corresponds overlaps with first bolt mounting hole 1, and on first connecting piece 88.07 with the position department that first arc wall 2 corresponds, has seted up first arc wall bolt hole 3, and fastener bolt is vice to pass first arc wall 2 and first arc wall bolt hole 3, fixed first connecting piece 88.07 and the relative rotation of audio amplifier suspension unit. Preferably, the groove edge of the first arc-shaped groove 2 is engraved with an angle mark.
The speaker connecting member 88.05 has a plate-like structure, and as shown in fig. 2, is mounted on the speaker by two cross-thread screws, and at the rotational connection point of the supporting arm 88.04 and the speaker connecting member 88.05, a second bolt mounting hole 4 is formed, and the supporting arm 88.04 and the speaker connecting member 88.05 are connected by a fastener-bolt pair. The second arc-shaped groove 5 is formed in the loudspeaker box connecting part 88.05, the circle center corresponding to the arc of the second arc-shaped groove 5 is overlapped with the second bolt mounting hole 4, the second arc-shaped groove bolt hole 6 is formed in the position, corresponding to the second arc-shaped groove 5, on the supporting arm 88.04, the fastener bolt pair penetrates through the second arc-shaped groove 5 and the second arc-shaped groove bolt hole 6, and the loudspeaker box connecting part 88.05 and the loudspeaker box suspension assembly are fixed to rotate relatively. Preferably, the groove edge of the second arc-shaped groove is engraved with an angle mark. It should be noted that in fig. 1, the two fastener bolt pairs in the second arc-shaped slot are located on the same horizontal line, and are overlapped in the view, so that only one of the bolt pairs is shown.
Preferably, in order to ensure simple, convenient and quick initial suspension, one of the fastener bolt pairs is welded and fixed when being prefabricated in a factory, the bolt or the cap only needs to be screwed by one hand on the spot, and the other hand can hold a firm object around the body to avoid losing the center of gravity.
Installation process and theory of operation:
when the loudspeaker box is installed, the vertical plane 88.06/supporting arm 88.04 integrated piece and the two loudspeaker box connecting parts 88.05 are firstly connected by 2 groups (3M 8) of screw caps, and the two loudspeaker box connecting parts and the loudspeaker box are assembled into an assembly.
Then 88.06 of the assembly is sleeved and hung on 88.07 of a hanging screw component and is pre-tightened by a 3-M8 screw cap, and the primary hanging of the top ring around the sound box is completed.
The M8 rebar hanging screw is adjusted to a proper accurate height position, and the first nut HD03 is screwed.
At the joint of the supporting arm 88.04 and the loudspeaker box connecting part 88.05, an M8 bolt passing through a phi 9mm hole where the supporting arm 88.04 and the loudspeaker box connecting part 88.05 are overlapped is taken as an axis, so that 2M 8 bolts slide along the second arc-shaped groove, and when the position is adjusted to an ideal position, the M8 bolt and the cap are fastened to complete the adjustment of the pitch angle of the loudspeaker box. Similarly, at the joint of the vertical plane 88.06 and the first connecting piece 88.07, the M8 bolt passing through the phi 9mm hole of the vertical plane 88.06 and the first connecting piece 88.07 is used as an axis, so that 1M 8 bolt slides along the first arc-shaped groove, and the M8 bolt and the cap are fastened when the position is adjusted to an ideal position, thereby completing the adjustment of the left and right directions of the sound box.
The utility model adds a rotatable joint between the hanging screw component and the loudspeaker box hanging component which are fixed on the top of the video hall and between the loudspeaker box hanging component and the loudspeaker box connecting component which is connected with the loudspeaker box, and the two rotating structures respectively realize the adjustment of left and right directions and pitch angles in two dimensions; and point position scale marks are arranged in the adjustable range, and the determined positions of a certain sound box in the video hall in two directions are memorized so as to implement the symmetrical configuration of the sound boxes on the other side of the video hall.
The utility model discloses the device follows principle and purpose above and carries out the manufacturing of designing, is suitable for certain type of big, well movie hall to choose for use and winds audio amplifier (4288 type, 20kg), through about 200 various movie halls' practicality, proves the device has realized the design philosophy, has reached each item functional target, has satisfied actual requirement, has gained good application effect.
Claims (10)
1. The utility model provides a two accent of medium-sized mould shell are to cable suspension device of stereo repayment of film projection which characterized in that includes:
the top end of the hanging screw assembly is fixedly arranged on the base beam at the hanging side and comprises a hanging side mounting piece, a connecting rod piece and a first connecting piece from top to bottom;
the loudspeaker box suspension assembly comprises two support arms which semi-encircle the loudspeaker box, the upper end parts of the support arms are integrally formed, and a vertical surface for connecting the suspension screw rod assembly is arranged, and the vertical surface is rotatably connected with the lower end of the first connecting piece, so that the loudspeaker box suspension assembly rotates along the left and right direction relative to the first connecting piece;
and the sound box connecting parts are arranged on two sides of the sound box and are rotationally connected with the tail ends of the supporting arms, so that the sound box rotates along the pitching direction relative to the supporting arms.
2. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 1, wherein: hang side installed part including installing first pendant and the second pendant in the base roof beam left and right sides, the size looks adaptation of first pendant and second pendant is connected by the fastener, and the bolt hole has been seted up to the bottom of first pendant or second pendant for connect the member.
3. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 1, wherein: the connecting rod piece adopts an M8 hanging bar screw, and two ends of the connecting rod piece are respectively connected with the hanging side mounting piece and the first connecting piece through an M8 locking nut.
4. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 1, wherein: the first connecting piece is of a panel structure, a first bolt mounting hole is formed in the position of a rotating connecting point of the first connecting piece and a vertical surface 88.06 of the loudspeaker box suspension assembly, and the first connecting piece and the vertical surface are connected through a fastener bolt pair.
5. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 4, wherein: the first arc-shaped groove is arranged on the vertical surface, the circle center corresponding to the arc of the first arc-shaped groove is overlapped with the first bolt mounting hole, a first arc-shaped groove bolt hole is formed in the position, corresponding to the first arc-shaped groove, of the first connecting piece, and the fastener bolt pair penetrates through the first arc-shaped groove bolt hole and the first arc-shaped groove bolt hole to fix the first connecting piece and the voice box suspension assembly to rotate relatively.
6. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 5, wherein: an angle mark is carved on the groove edge of the first arc-shaped groove.
7. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 1, wherein: the sound box connecting part is of a plate-shaped structure, a second bolt mounting hole is formed in the position of a rotating connecting point of the supporting arm and the sound box connecting part, and the supporting arm and the sound box connecting part are connected through a fastener bolt pair.
8. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 7, wherein: the loudspeaker box connecting part is provided with a second arc-shaped groove, the circle center corresponding to the arc of the second arc-shaped groove is overlapped with the second bolt mounting hole, a second arc-shaped groove bolt hole is formed in the position, corresponding to the second arc-shaped groove, of the supporting arm, the fastener bolt pair penetrates through the second arc-shaped groove and the second arc-shaped groove bolt hole, and the loudspeaker box connecting part and the loudspeaker box hanging assembly are fixed to rotate relatively.
9. The device for hanging a plastic case with two adjustable directions for playing stereo movie and playing back according to claim 8, wherein: and angle marks are carved on the groove edges of the second arc-shaped grooves.
10. The plastic case double-direction hanging device for film projection stereo sound reproduction according to claim 4 or 7, wherein: and one of the bolt and the nut of the fastener bolt pair is fixed by spot welding when prefabricated in a factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301787.6U CN211831139U (en) | 2020-03-12 | 2020-03-12 | Double-direction adjusting hanging device for film projection stereo sound reproduction medium plastic shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301787.6U CN211831139U (en) | 2020-03-12 | 2020-03-12 | Double-direction adjusting hanging device for film projection stereo sound reproduction medium plastic shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211831139U true CN211831139U (en) | 2020-10-30 |
Family
ID=73008838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020301787.6U Expired - Fee Related CN211831139U (en) | 2020-03-12 | 2020-03-12 | Double-direction adjusting hanging device for film projection stereo sound reproduction medium plastic shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211831139U (en) |
-
2020
- 2020-03-12 CN CN202020301787.6U patent/CN211831139U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 Termination date: 20210312 |