CN213982605U

CN213982605U - Novel digital film projection device

Info

Publication number: CN213982605U
Application number: CN202022699378.9U
Authority: CN
Inventors: 丛苡潇; 王婧宇; 程凯阳
Original assignee: Beijing Yunduan Culture And Media Co ltd
Current assignee: Beijing Yunduan Culture And Media Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-17
Anticipated expiration: 2030-11-19

Abstract

The application relates to the technical field of film projection equipment, in particular to a novel digital film projection device which comprises an equipment box, wherein a supporting rod is connected in the equipment box in a sliding manner, the top end of the supporting rod is fixedly connected with a mounting plate, a supporting plate for placing a projector is hinged on the mounting plate, and an adjusting component for adjusting the angle of the supporting plate is arranged between the mounting plate and the supporting plate; fixed cover is equipped with the ring gear on the bracing piece, and fixedly connected with installation pole in the equipment box rotates on the installation pole and is connected with the connecting rod, fixedly connected with and ring gear meshing's gear on the connecting rod, and the equipment box is equipped with and is used for drive gear pivoted drive assembly. The projector angle adjusting device has the advantage that the angle adjusting range of the projector is expanded.

Description

Novel digital film projection device

Technical Field

The application relates to the technical field of film projection equipment, in particular to a novel digital film projection device.

Background

A digital cinema projector is a device used to play digital cinema. In a mobile digital film projector used in rural areas or other places, before a film is played, a projection rack is firstly placed on a support frame to be erected, and the film is projected on a film screen.

The existing chinese patent with publication number CN208076913U discloses a novel digital film projection device, which comprises a projector, a support plate and an adjusting device, which are arranged in sequence from top to bottom, wherein the projector is placed on the support plate, and the adjusting device is used for adjusting the inclination angle of the support plate; the adjusting device comprises a box body, four lifting devices are arranged in the box body, each lifting device comprises a plurality of fixed plates, a fixed sleeve, a movable rod, a linkage rod and a first adjusting rod, the fixed sleeves and the fixed plates are fixed at the bottom of the box body, a lifting rack is arranged in the middle of each movable rod, a lifting gear meshed with the lifting rack is arranged on each linkage rod, each first adjusting rod is rotatably connected with the fixed plates and the box body, a coarse adjusting gear is arranged on each first adjusting rod, and a first gear meshed with the coarse adjusting gear is arranged on each linkage rod.

In view of the above-described related art, the inventors have considered that there is a drawback that the circumferential angle of the projector cannot be adjusted, resulting in a small adjustment range.

SUMMERY OF THE UTILITY MODEL

In order to expand the range of projector angle adjustment, the application provides a novel digital cinema projection device.

The novel digital film projection device provided by the application adopts the following technical scheme.

A novel digital film projection device comprises an equipment box, wherein a supporting rod is connected in the equipment box in a sliding manner, an installation plate is fixedly connected to the top end of the supporting rod, a supporting plate for placing a projector is hinged to the installation plate, and an adjusting assembly for adjusting the angle of the supporting plate is arranged between the installation plate and the supporting plate; the fixed cover is equipped with the ring gear on the bracing piece, fixedly connected with installation pole in the equipment box, it is connected with the connecting rod to rotate on the installation pole, fixedly connected with and ring gear meshing's gear on the connecting rod, the equipment box is equipped with and is used for drive gear pivoted drive assembly.

By adopting the technical scheme, the angle of the supporting plate can be adjusted by utilizing the adjusting component, so that the angle of the projector positioned on the supporting plate is adjusted; in addition, the driving component can drive the gear to rotate, and the gear is meshed with the gear ring, so that the gear ring can be driven to rotate; the gear ring is fixedly sleeved on the supporting rod, so that the supporting rod rotates along with the gear ring; thereby driving the rotation of the projector on the supporting plate, and further facilitating the angle adjustment of the projector.

Preferably, the drive assembly includes bevel gear one, dwang one, bevel gear two and hand wheel, bevel gear one is fixed on the connecting rod, a dwang rotates the lateral wall of wearing to establish the equipment box, bevel gear two is fixed on the tip that dwang one is located the equipment box, bevel gear one with bevel gear two meshes, hand wheel fixed connection is on the tip that dwang one is located the equipment box outside.

Through adopting above-mentioned technical scheme, can make dwang one rotate through rotating the hand wheel, because bevel gear two is fixed on dwang one, and bevel gear two meshes with bevel gear one to this can make the connecting rod rotate thereupon, thereby has driven the rotation of gear, gear and ring gear meshing in addition, and then can make the ring gear rotate thereupon, finally driven the rotation of bracing piece, accomplished the regulation of projector position.

Preferably, be equipped with on the equipment box and be used for restricting a pivoted spacing subassembly one of dwang, spacing subassembly one includes sawtooth dish and clip, sawtooth dish fixed cover is established on the dwang that is located the equipment box outside one, the clip is fixed on the outer wall of equipment box, just when the clip is in initial condition, its tip and sawtooth dish block.

By adopting the technical scheme, when the support rod needs to be rotated to adjust the position of the projector, the clamp is firstly pressed to separate the support rod from the sawtooth disc, so that the first rotating rod can normally rotate; after the position adjustment of the projector is completed, the clamp is loosened to enable the clamp to be clamped with the sawtooth disc, so that the rotation of the first rotating rod is limited, and the stability of the projector is further ensured.

Preferably, a longitudinal moving assembly used for driving the supporting plate to slide up and down is arranged in the equipment box, and the tooth width of the gear ring is larger than that of the gear.

By adopting the technical scheme, the longitudinal moving assembly can enable the supporting plate to slide up and down, so that the height position of the projector is adjusted, and the position adjustment of the projector is further facilitated; meanwhile, the tooth width of the gear ring is larger than that of the gear, so that the gear ring can be always kept in a meshed state with the gear while the height position of the gear ring rotates along with the supporting plate, and the gear can be always used for driving the supporting rod to rotate.

Preferably, indulge and move the subassembly and include dwang two, fixed cover, link and uide bushing, dwang two rotates the lateral wall of wearing to establish the equipment box, fixed cover is established on the bracing piece, a tip of link and dwang are two in the tip fixed connection of equipment box, another tip and fixed cover of link are articulated, the uide bushing is fixed and is slided with the bracing piece in the equipment box and be connected.

By adopting the technical scheme, when the height position of the supporting rod is adjusted by utilizing the longitudinal moving component, the second rotating rod is rotated, so that the connecting frame fixed on the second rotating rod can rotate along with the second rotating rod; because the connecting frame is hinged with the fixed sleeve, the supporting rod can slide up and down along the guide sleeve under the guide action of the guide sleeve, thereby adjusting the height position of the projector.

Preferably, the adjusting component comprises a first screw rod, a second screw rod and a threaded sleeve, one end of the first screw rod is hinged to the supporting plate, one end of the second screw rod is hinged to the mounting plate, one end of the threaded sleeve is in threaded connection with the end of the first screw rod, which is far away from the supporting plate, and the other end of the threaded sleeve is in threaded connection with the end of the second screw rod, which is far away from the mounting plate.

By adopting the technical scheme, when the hinge angle between the mounting plate and the support plate needs to be adjusted, the screw sleeve can be rotated by the aid of the screw to enable the screw I and the screw II to move oppositely or back to back, so that the effective length of the adjusting assembly is changed, the hinge angle between the mounting plate and the support plate is changed, and the angle of the projector is changed accordingly.

Preferably, the supporting plate is provided with a clamping mechanism for clamping the projector, and the clamping mechanism comprises a plurality of groups of clamping components which are uniformly distributed on the supporting plate.

Through adopting above-mentioned technical scheme, utilize multiunit centre gripping subassembly can be with the projector centre gripping to this stability that has promoted the projector has reduced when adjusting the backup pad position, and the projector probably drops from the backup pad problem.

Preferably, the clamping assembly comprises a connecting block, an abutting rod and an elastic fixing piece, the connecting block is fixed on the supporting plate, the abutting rod is in threaded connection with the top end of the connecting block, and the elastic fixing piece is fixed on the side face, close to the projector, of the abutting rod.

Through adopting above-mentioned technical scheme, adjust the position of elastic fixing piece through rotating the butt pole, until elastic fixing piece and projector support tightly to can support the projector tightly in order to grasp, and then guarantee the stability of projector, reduce the problem that the projector probably dropped from the backup pad.

In summary, the present application includes at least one of the following beneficial technical effects:

the gear can be driven to rotate by the driving component, and the gear is meshed with the gear ring, so that the gear ring can be driven to rotate; the gear ring is fixedly sleeved on the supporting rod, so that the supporting rod rotates along with the gear ring; thereby driving the rotation of the projector on the supporting plate, and further facilitating the angle adjustment of the projector;

the first rotating rod can rotate by rotating the hand wheel, the second bevel gear is fixed on the first rotating rod and meshed with the first bevel gear, so that the connecting rod can rotate along with the first bevel gear, the gear is driven to rotate, the gear is meshed with the gear ring, the gear ring can rotate along with the gear ring, the support rod is driven to rotate finally, and the position of the projector is adjusted;

when the support rod needs to be rotated to adjust the position of the projector, the clamp is firstly pressed to separate the support rod from the sawtooth disc, so that the first rotating rod can normally rotate; after the position adjustment of the projector is completed, the clamp is loosened to enable the clamp to be clamped with the sawtooth disc, so that the rotation of the first rotating rod is limited, and the stability of the projector is further ensured.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Description of reference numerals: 1. an equipment box; 2. a support bar; 21. mounting a plate; 22. a support plate; 23. an adjustment assembly; 231. a first screw rod; 232. a second screw; 233. a threaded sleeve; 3. a clamping assembly; 31. connecting blocks; 32. a butting rod; 33. an elastic fixing sheet; 4. a ring gear; 5. mounting a rod; 51. a connecting rod; 511. a gear; 6. a drive assembly; 61. a first bevel gear; 62. rotating the first rod; 63. a second bevel gear; 64. a hand wheel; 7. a first limiting component; 71. a saw tooth disc; 72. a clip; 8. a longitudinal movement component; 81. rotating the second rod; 82. fixing a sleeve; 83. a connecting frame; 84. a guide sleeve; 9. and a second limiting component.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a novel digital film projection device. Referring to fig. 1, the equipment box 1 is a rectangular box structure, and the equipment box 1 is vertically placed on the ground. Sliding on equipment box 1 is connected with bracing piece 2, and bracing piece 2 is round rod-shaped structure, and the length direction of bracing piece 2 is unanimous with equipment box 1's length direction, and bracing piece 2 slides and wears to establish equipment box 1 and keep away from a lateral wall on ground to one end of this bracing piece 2 is located equipment box 1, and another tip of bracing piece 2 is located outside equipment box 1, and bracing piece 2 can rotate along equipment box 1. The end part of the support rod 2 outside the equipment box 1 is fixedly connected with an installation plate 21, the installation plate 21 is of a rectangular plate-shaped structure, and the length direction of the installation plate 21 is consistent with the length direction of the equipment box 1. A support plate 22 is rotatably connected to one of the widthwise lateral edges of the mounting plate 21, the support plate 22 has a rectangular plate-like structure, and the support plate 22 is used for placing a projector. An adjusting component 23 is arranged on the side edge of the mounting plate 21 in the other width direction, and the adjusting component 23 is located between the mounting plate 21 and the supporting plate 22 and used for adjusting the angle of the supporting plate 22.

Referring to fig. 2, the adjusting assembly 23 includes a first screw 231, a second screw 232, and a threaded sleeve 233, the first screw 231, the second screw 232, and the threaded sleeve 233 are identical in length direction, and the first screw 231, the threaded sleeve 233, and the second screw 232 are sequentially disposed, one end of the first screw 231 is hinged to the side of the support plate 22 close to the mounting plate 21, the other end of the first screw 231 is connected with the threaded sleeve 233 in a threaded manner, one end of the second screw 232 is hinged to the side of the mounting plate 21 close to the support plate 22, and the end of the second screw 232 far from the mounting plate 21 is matched with the threaded sleeve 233 in a threaded manner. When the hinge angle between the mounting plate 21 and the support plate 22 needs to be adjusted, the first screw 231 and the second screw 232 can be moved relatively or oppositely by rotating the threaded sleeve 233, so that the effective length of the adjusting assembly 23 is changed, the hinge angle between the mounting plate 21 and the support plate 22 is changed, and the angle of the projector is changed accordingly.

Referring to fig. 1, a holding mechanism is disposed on the supporting plate 22, the holding mechanism is used for holding the projector, the holding mechanism includes four sets of holding assemblies 3, and the four sets of holding assemblies 3 are uniformly distributed on the side surface of the supporting plate 22 away from the mounting plate 21. The clamping assembly 3 comprises a connecting block 31, an abutment lever 32 and an elastic fixing plate 33. The connecting block 31 is a rectangular block structure, the connecting block 31 is fixed on the upper surface of the supporting plate 22, and the length direction of the connecting block 31 is perpendicular to the side surface of the supporting plate 22 far away from the mounting plate 21. The abutting rod 32 is screwed on the end part of the connecting block 31 far away from the supporting plate 22, and an external thread is arranged on the outer peripheral surface of the abutting rod 32, so that the connecting block 31 is screwed. The flexible fixing plate 33 is made of PVC material and is deformable, the flexible fixing plate 33 is fixed on the end of the abutting rod 32, the end of the flexible fixing plate 33 far away from the abutting rod abuts against the projector, and the projector can be clamped by the combined action of the plurality of groups of clamping components 3.

Referring to fig. 1, a gear ring 4 is fixedly sleeved on the circumferential surface of the support plate 22 located in the equipment cabinet 1, and the gear ring 4 and the support plate 22 are coaxial. Fixedly connected with installation pole 5 in equipment box 1, the length direction of installation pole 5 is unanimous with the width direction of equipment box 1, and installation pole 5 rotates on keeping away from the tip of equipment box 1 inner wall and is connected with connecting rod 51, and connecting rod 51 is cylindrical structure, and the length direction of connecting rod 51 is unanimous with the length direction of bracing piece 2. The end part of the connecting rod 51 is fixedly connected with a gear 511, the gear 511 and the connecting rod 51 are coaxial, the gear 511 is meshed with the gear ring 4, and the tooth width of the gear 511 is smaller than that of the gear ring 4.

Referring to fig. 1, a driving assembly 6 is disposed in the equipment box 1, the driving assembly 6 is used for driving the gear 511 to rotate, and the driving assembly 6 includes a first bevel gear 61, a first rotating rod 62, a second bevel gear 63 and a hand wheel 64. Bevel gear one 61 is coaxial with the connecting rod 51, and bevel gear one 61 is fixed to the end of the connecting rod 51 remote from the gear 511. The first rotating rod 62 is of a cylindrical structure, the length direction of the first rotating rod 62 is consistent with that of the installation rod 5, the first rotating rod 62 rotates to penetrate through the side wall of the equipment box 1, one end portion of the first rotating rod 62 is located in the equipment box 1, and the other end portion of the first rotating rod 62 is located outside the equipment box 1. The second bevel gear 63 and the first rotating rod 62 are coaxial, the second bevel gear 63 is fixed on the end part of the first rotating rod 62 in the equipment box 1, and the second bevel gear 63 is meshed with the first bevel gear 61. The hand wheel 64 is fixed on the end part of the rotating rod 62 outside the equipment box 1, the rotating rod 62 can be rotated by rotating the hand wheel 64, the bevel gear II 63 is fixed on the rotating rod 62, and the bevel gear II 63 is meshed with the bevel gear I61, so that the connecting rod 51 can be rotated along with the rotating rod, the gear 511 is driven to rotate, in addition, the gear 511 is meshed with the gear ring 4, the gear ring 4 can be rotated along with the gear ring, the supporting rod 2 is finally driven to rotate, and the adjustment of the position of the projector is completed.

Referring to fig. 1, a first limiting assembly 7 is disposed on the equipment box 1, the first limiting assembly 7 is used for limiting the rotation of the rotating rod 62, and the first limiting assembly 7 comprises a saw disc 71 and a clamp 72. The sawtooth disc 71 is coaxial with the rotating rod 62, and the sawtooth disc 71 is fixed on the peripheral surface of the rotating rod 62 outside the equipment box 1. The clip 72 is fixed to the outer surface of the equipment box 1, and when the clip 72 is in the initial state, the end thereof engages with the serration plate 71. When the support rod 2 needs to be rotated to adjust the position of the projector, the clamp 72 is firstly pressed to be separated from the sawtooth disc 71, so that the rotating rod 62 can normally rotate; when the position adjustment of the projector is completed, the clip 72 is released to be engaged with the serrated disk 71, so that the rotation of the rotating lever 62 is restricted, and the stability of the projector is ensured.

Referring to fig. 1, a longitudinal moving assembly 8 is arranged in the equipment box 1, the longitudinal moving assembly 8 is used for driving the support rod 2 to move upwards and slide, and the longitudinal moving assembly 8 comprises a second rotating rod 81, a fixed sleeve 82, a connecting frame 83 and a guide sleeve 84. The second rotating rod 81 is of a round rod-shaped structure, the second rotating rod 81 rotates to penetrate through the side wall of the equipment box 1, and the length direction of the second rotating rod 81 is consistent with that of the first rotating rod 62. The outer side surface of the equipment box 1 is provided with a second limiting assembly 9, the second limiting assembly 9 and the first limiting assembly 7 are identical in structure, and the difference from the first limiting assembly 7 is that a sawtooth disc 71 on the second limiting assembly 9 is fixedly sleeved on the second rotating rod 81, and a clamp 72 on the second limiting assembly 9 is clamped with the sawtooth disc 71 on the second limiting assembly 9, so that the second limiting assembly 9 can limit the position of the second rotating rod 81. The fixing sleeve 82 is coaxial with the support rod 2, and the fixing sleeve 82 is fixedly sleeved on the end of the support rod 2 located in the equipment box 1. The connecting frame 83 is of a Y-shaped structure, one end part of the connecting frame 83 is fixed on the end part of the second rotating rod 81 located in the equipment box 1, and the other two end parts of the connecting frame 83 are hinged to the fixing sleeve 82. The guide sleeve 84 is a round tubular structure, the length direction of the guide sleeve 84 is consistent with the length direction of the support rod 2, the inner diameter of the guide sleeve 84 is slightly larger than the diameter of the support rod 2, the guide sleeve 84 is fixed on the inner bottom surface of the equipment box 1, and the guide sleeve 84 is sleeved on the bottom end peripheral side of the support rod 2. The second rotating rod 81 is rotated, so that the connecting frame 83 fixed on the second rotating rod 81 can rotate along with the second rotating rod 81; due to the hinge joint of the connecting frame 83 and the fixing sleeve 82, the support rod 2 can slide up and down along the guide sleeve 84 under the guiding action of the guide sleeve 84, so that the height position of the projector can be adjusted.

The implementation principle of the novel digital film projection device in the embodiment of the application is as follows: when the hinge angle between the mounting plate 21 and the support plate 22 needs to be adjusted, the first screw 231 and the second screw 232 can be moved relatively or reversely by rotating the threaded sleeve 233, so that the effective length of the adjusting assembly 23 is changed, the hinge angle between the mounting plate 21 and the support plate 22 is changed, and the angle of the projector is changed; the rotating rod 62 can be rotated by rotating the hand wheel 64, the connecting rod 51 can be rotated along with the rotating of the bevel gear 63 fixed on the rotating rod 62, and the bevel gear 63 is meshed with the bevel gear 61, so that the gear 511 is driven to rotate, in addition, the gear 511 is meshed with the gear ring 4, the gear ring 4 can be driven to rotate along with the gear, and finally, the rotation of the supporting rod 2 is driven, and the adjustment of the position of the projector is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A novel digital film projection device is characterized in that: the device comprises an equipment box (1), wherein a supporting rod (2) is connected in the equipment box (1) in a sliding manner, an installation plate (21) is fixedly connected to the top end of the supporting rod (2), a supporting plate (22) for placing a projector is hinged to the installation plate (21), and an adjusting assembly (23) for adjusting the angle of the supporting plate (22) is arranged between the installation plate (21) and the supporting plate (22); fixed cover is equipped with ring gear (4) on bracing piece (2), fixedly connected with installation pole (5) in equipment box (1), it is connected with connecting rod (51) to rotate on installation pole (5), fixedly connected with and ring gear (4) meshed gear (511) are gone up in connecting rod (51), be equipped with in equipment box (1) and be used for drive gear (511) pivoted drive assembly (6).

2. The novel digital cinema projection device according to claim 1, characterized in that: drive assembly (6) include bevel gear (61), dwang (62), bevel gear two (63) and hand wheel (64), bevel gear (61) are fixed on connecting rod (51), dwang (62) rotate the lateral wall of wearing to establish equipment box (1), bevel gear two (63) are fixed and are located the tip of equipment box (1) at dwang (62), bevel gear one (61) with bevel gear two (63) meshing, hand wheel (64) fixed connection is located the tip outside equipment box (1) at dwang (62).

3. A novel digital cinema projection presentation apparatus according to claim 2, characterized in that: be equipped with on equipment box (1) and be used for restricting dwang one (62) pivoted spacing subassembly (7), spacing subassembly (7) are including sawtooth dish (71) and clip (72), sawtooth dish (71) fixed cover is established on being located equipment box (1) outer dwang one (62), clip (72) are fixed on the outer wall of equipment box (1), just when clip (72) are in initial condition, its tip and sawtooth dish (71) block.

4. The novel digital cinema projection device according to claim 1, characterized in that: the equipment box (1) is internally provided with a longitudinal moving component (8) for driving the supporting plate (22) to slide up and down, and the tooth width of the gear ring (4) is larger than that of the gear (511).

5. The novel digital cinema projection device according to claim 4, characterized in that: indulge and move subassembly (8) including dwang two (81), fixed cover (82), link (83) and uide bushing (84), dwang two (81) rotate the lateral wall of wearing to establish equipment box (1), fixed cover (82) fixed cover is established on bracing piece (2), the tip fixed connection that one end and dwang two (81) of link (83) are located equipment box (1), another tip and fixed cover (82) of link (83) are articulated, uide bushing (84) are fixed and are slided in equipment box (1) and with bracing piece (2) and be connected.

6. The novel digital cinema projection device according to claim 1, characterized in that: adjusting part (23) includes screw rod (231), screw rod two (232) and thread bush (233), the tip and the backup pad (22) of screw rod (231) are articulated, the tip and mounting panel (21) of screw rod two (232) are articulated, the tip threaded connection of backup pad (22) is kept away from with screw rod (231) to the tip of thread bush (233), the tip threaded connection of mounting panel (21) is kept away from with screw rod two (232) to the other tip of thread bush (233).

7. The novel digital cinema projection device according to claim 1, characterized in that: the projector clamping device is characterized in that a clamping mechanism for clamping a projector is arranged on the supporting plate (22), and the clamping mechanism comprises a plurality of groups of clamping components (3) which are uniformly distributed on the supporting plate (22).

8. The novel digital cinema projection device according to claim 7, characterized in that: the clamping assembly (3) comprises a connecting block (31), a butt joint rod (32) and an elastic fixing piece (33), the connecting block (31) is fixed on the supporting plate (22), the butt joint rod (32) is in threaded connection with the top end of the connecting block (31), and the elastic fixing piece (33) is fixed on the side face, close to the projector, of the butt joint rod (32).