CN213517850U

CN213517850U - Projection system and projection screen

Info

Publication number: CN213517850U
Application number: CN202022580188.5U
Authority: CN
Inventors: 廖承亮; 罗盛取; 刘艳洁
Original assignee: Hainan Boshi Intelligent System Engineering Co ltd
Current assignee: Hainan Boshi Intelligent System Engineering Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-22
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a projection system and projection screen belongs to electron product technology field, and it includes projection equipment, projection equipment's left surface passes through bearing swing joint with the right-hand member that a section of thick bamboo was adjusted in the protection, projection equipment's right flank and the left end fixed connection that the inner tube was adjusted in the protection, the inner wall that a section of thick bamboo was adjusted in the protection has a plurality of to connect the hinge bar through round pin axle swing joint. This projection system and projection screen, through being provided with the wind spring and connecting the hinge bar, when needs remove dust-proof enclosure to this projection equipment's projection lens, adjust a section of thick bamboo through rotatory protection and drive the guard plate that corresponds to outside slip through utilizing to connect the hinge bar, can remove dust-proof enclosure, when removing the spacing to a protection regulation section of thick bamboo, reaction force through the wind spring makes protection regulation section of thick bamboo reverse rotation, it can carry out dust-proof enclosure to promote the guard plate through connecting the hinge bar and slide, prevent that the dust from adsorbing at the surface of camera lens, thereby guarantee the definition of this projection equipment picture.

Description

Projection system and projection screen

Technical Field

The utility model belongs to the technical field of the electronic product, specifically be a projection system and projection screen.

Background

The projector is a device capable of projecting images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, a game machine, a DV and the like through different interfaces to play corresponding video signals, and is widely applied to families, offices, schools and entertainment places.

The basic principle of a projector is to enlarge the outline or contour of a workpiece using optical elements and then project it onto a screen. It can be used for profile measurement by transmitted light, and also can be used for measuring the surface shape of a blind hole by reflected light. Besides being used for viewing, projectors are also often used for measurement of complex contours and small workpieces.

Traditional projection equipment's projection lens does not have dustproof construction, can influence the purge degree of projection equipment projection picture after a large amount of dusts are piled up in projection lens, and it is very troublesome to clear up to influence projection equipment's normal use, traditional projection equipment's mounting structure is comparatively complicated, need adjust a plurality of bolts when installing projection equipment, and the staff of being not convenient for installs and dismantles, thereby has improved the loaded down with trivial details degree of installation work.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a projection system and projection screen, the projection lens who has solved traditional projection equipment does not have dustproof construction, can influence the degree of washing of projection equipment projection picture after a large amount of dusts are piled up in projection lens, it is very troublesome to clear up, thereby influence projection equipment's normal use, traditional projection equipment's mounting structure is comparatively complicated, need adjust a plurality of bolts when installing projection equipment, the staff of being not convenient for installs and dismantles, thereby the problem of the loaded down with trivial details degree of installation work has been improved.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a projection system and projection screen, includes projection equipment, projection equipment's left surface passes through bearing swing joint with the right-hand member that a section of thick bamboo was adjusted in the protection, projection equipment's right flank and the left end fixed connection that the inner tube was adjusted in the protection, the inner wall that a section of thick bamboo was adjusted in the protection has a plurality of to connect the hinge bar through round pin axle swing joint, the one end that the section of thick bamboo was adjusted in the protection is kept away from to connecting the hinge bar has the guard plate through round pin axle swing joint, the arc spout has been seted up to the left surface of guard plate, the guard plate passes through arc spout sliding connection and adjusts the inner wall of inner tube in the protection, the same wind spring of inner wall fixedly connected with that the.

The left side of projection equipment and the right-hand member fixed connection of mounting panel, the last surface sliding connection of mounting panel has the slide bar, reset spring has been cup jointed to the surface of slide bar, reset spring's upper and lower both ends fixed connection respectively is at the surface of slide bar and the upper surface of mounting panel, the bottom of slide bar and the upper surface looks joint of limiting plate, the upper surface of projection equipment and the bottom fixed connection of installation piece, electric telescopic handle's left end and the right-hand member fixed connection of projection screen main part.

As a further aspect of the present invention: the upper surface of projection equipment and the lower fixed surface of connecting plate are connected, the upper surface of connecting plate and the bottom fixed connection of screw thread post, the top of screw thread post and the lower fixed surface of diaphragm are connected.

As a further aspect of the present invention: the surface of screw thread post and the surface threaded connection who adjusts the screw thread section of thick bamboo, the top of adjusting the screw thread section of thick bamboo has articulated piece through bearing swing joint, both ends all have first articulated arm through round pin axle swing joint about articulated piece.

As a further aspect of the present invention: the equal sliding connection in the left and right sides of diaphragm inner wall has the fixed plate, the bottom of second hinge bar is through round pin axle swing joint with the top that corresponds first hinge bar.

As a further aspect of the present invention: the equal sliding connection in the left and right sides of mounting panel inner wall has the fixed plate, corresponds the one side that two fixed plates kept away from each other and has all seted up spacing spout, the inner wall sliding connection of spacing spout has spacing slider.

As a further aspect of the present invention: one end of the second hinge rod, which is far away from the first hinge rod, is movably connected to the outer surface of the corresponding limiting slide block through a pin shaft, and rubber pads are arranged on the surfaces, close to each other, of the two fixing plates.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. this projection system and projection screen, adjust a section of thick bamboo through being provided with the protection, the inner tube is adjusted in the protection, the guard plate, the arc spout, wind spring and connection hinge bar, when needs are relieved dustproof sealing to this projection equipment's projection lens, adjust a section of thick bamboo through rotatory protection and drive the guard plate that corresponds to outside slip through utilizing the connection hinge bar, can relieve dustproof sealing, when relieving spacing to a protection regulation section of thick bamboo, the reaction force through the wind spring makes protection regulation section of thick bamboo reverse rotation, promote the guard plate through connecting the hinge bar and slide and can carry out dustproof sealing, prevent that the dust from adsorbing the surface at the camera lens, thereby guarantee the definition of this projection equipment picture.

2. This projection system and projection screen, through being provided with the screw thread post, the connecting plate, adjust a screw thread section of thick bamboo, first articulated arm and articulated piece, it rises to drive articulated piece through rotatory regulation screw thread section of thick bamboo, the second articulated arm that utilizes the first articulated arm of both sides to drive both sides is rotatory, make the spacing slider of both sides remove to the middle part, the fixed plate that the extrusion corresponds, the fixed plate through both sides is installed this projection equipment at treating the installation position, be convenient for install this projection equipment, reduce the loaded down with trivial details degree of installation work.

3. This projection system and projection screen through being provided with mounting panel, slide bar, reset spring and spacing rib, makes the limiting plate joint of slide bar below carry on spacingly in the surface of spacing rib to the protection regulation section of thick bamboo through reset spring's reaction force, only needs can remove spacingly with the slide bar lifting when removing the spacing to the protection regulation section of thick bamboo, is convenient for carry on spacingly and remove spacingly to the protection regulation section of thick bamboo, makes things convenient for the staff to adjust a protection regulation section of thick bamboo.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of a left side section of the protective adjustment cylinder of the present invention;

FIG. 3 is a schematic structural view of a front view section of the threaded post of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

in the figure: the projection screen comprises a projection device 1, a protective adjusting cylinder 2, a protective adjusting inner cylinder 3, a protective plate 4, an arc-shaped sliding groove 5, a coil spring 6, a connecting hinge rod 7, an installation plate 8, a sliding rod 9, a return spring 10, a limiting plate 11, a limiting rib 12, a threaded column 13, a connecting plate 14, a threaded adjusting cylinder 15, a first hinge rod 16, a hinge block 17, a transverse plate 18, a fixing plate 19, a limiting sliding groove 20, a limiting sliding block 21, a second hinge rod 22, an installation block 23, an electric telescopic rod 24 and a projection screen main body 25.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-4, the utility model provides a technical solution: a projection system and a projection screen comprise a projection device 1, the left side surface of the projection device 1 is movably connected with the right end of a protection adjusting cylinder 2 through a bearing, the right side surface of the projection device 1 is fixedly connected with the left end of a protection adjusting inner cylinder 3, the inner wall of the protection adjusting cylinder 2 is movably connected with a plurality of connecting hinged rods 7 through pin shafts, one end of each connecting hinged rod 7, far away from the protection adjusting cylinder 2, is movably connected with a protection plate 4 through a pin shaft, the left side surface of the protection plate 4 is provided with an arc-shaped chute 5, the protection plate 4 is slidably connected with the inner wall of the protection adjusting inner cylinder 3 through the arc-shaped chute 5, the outer surface of the protection adjusting inner cylinder 3 and the inner wall of the protection adjusting cylinder 2 are fixedly connected with a same coil spring 6, the outer surface of the protection adjusting cylinder 2 is provided with a plurality of limiting, the contact area between the protective adjusting cylinder 2 and the hand can be increased by utilizing the limiting ribs 12, so that the protective adjusting cylinder is convenient for workers to rotate.

Left surface and mounting panel 8's right-hand member fixed connection of projection equipment 1, mounting panel 8's last sliding surface connection has slide bar 9, reset spring 10 has been cup jointed to slide bar 9's surface, through being provided with reset spring 10, limiting plate 11 joint that makes slide bar 9 below through reset spring 10's reaction force is spacing to protection regulation section of thick bamboo 2 at the surface of spacing rib 12, be convenient for carry on spacingly to protection regulation section of thick bamboo 2, reset spring 10's upper and lower both ends are fixed connection respectively at slide bar 9's surface and mounting panel 8's upper surface, the bottom of slide bar 9 and limiting plate 11's upper surface looks joint, projection equipment 1's upper surface and the bottom fixed connection of installation piece 23, the inner wall of installation piece 23 passes through bolt and electric telescopic handle 24 fixed connection, the left end of electric telescopic handle 24 and the right-hand member fixed connection of projection screen.

Specifically, as shown in fig. 1 and 3, the upper surface of the projection device 1 is fixedly connected with the lower surface of a connecting plate 14, the upper surface of the connecting plate 14 is fixedly connected with the bottom end of a threaded column 13, the top end of the threaded column 13 is fixedly connected with the lower surface of a transverse plate 18, the outer surface of the threaded column 13 is in threaded connection with the outer surface of an adjusting threaded cylinder 15, the top end of the adjusting threaded cylinder 15 is movably connected with a hinge block 17 through a bearing, the left end and the right end of the hinge block 17 are movably connected with a first hinge rod 16 through a pin shaft, the left side and the right side of the inner wall of the transverse plate 18 are movably connected with a second hinge rod 22 through a pin shaft, the bottom end of the second hinge rod 22 is movably connected with the top end of the corresponding first hinge rod 16 through a pin shaft, the left side and the right side of the inner wall of the transverse plate 18 are both slidably connected with fixing plates, through being provided with spacing spout 20 and spacing slider 21 and spacing spout 20 and spacing slider 21's shape for trapezoidal, through with spacing slider 21 sliding connection at spacing spout 20, when spacing slider 21 slided to both sides, spacing slider 21 can drive the fixed plate 19 removal of both sides, is convenient for dismantle projection equipment 1.

Specifically, as shown in fig. 3, one end of the second hinge rod 22, which is far away from the first hinge rod 16, is movably connected to the outer surface of the corresponding limiting slide block 21 through a pin, a rubber pad is arranged on one side, which is close to each other, of the two fixing plates 19, and the contact area between the rubber pads and the installation position is increased, so that the installation stability of the projection device 1 is improved.

The utility model discloses a theory of operation does:

s1, when the dustproof sealing of the projection lens of the projection equipment needs to be removed, the dustproof sealing can be removed by rotating the protective adjusting cylinder 2 and driving the corresponding protective plate 4 to slide outwards through the connecting hinge rod 7, when the limiting on the protective adjusting cylinder 2 is removed, the protective adjusting cylinder 2 rotates reversely through the reactive force of the coil spring 6, and the dustproof sealing can be performed by pushing the protective plate 4 to slide through the connecting hinge rod 7;

s2, limiting the protection adjusting cylinder 2 by clamping the limiting plate 11 below the sliding rod 9 on the outer surface of the limiting rib 12 through the counterforce of the return spring 10, and when the limitation on the protection adjusting cylinder 2 is relieved, the limitation can be relieved by only lifting the sliding rod 9;

s3, the hinge block 17 is driven to ascend by rotating the adjusting threaded cylinder 15, the second hinge rods 22 on two sides are driven to rotate by the first hinge rods 16 on two sides, the limiting slide blocks 21 on two sides move towards the middle part, the corresponding fixing plates 19 are extruded, and the projection equipment is installed at a position to be installed through the fixing plates 19 on two sides.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A projection system and a projection screen, comprising a projection device (1), characterized in that: the left side surface of the projection equipment (1) is movably connected with the right end of the protective adjusting cylinder (2) through a bearing, the right side surface of the projection equipment (1) is fixedly connected with the left end of the protective adjusting inner cylinder (3), the inner wall of the protective adjusting cylinder (2) is movably connected with a plurality of connecting hinge rods (7) through pin shafts, one end of the connecting hinge rod (7) far away from the protective adjusting cylinder (2) is movably connected with a protective plate (4) through a pin shaft, the left side surface of the protection plate (4) is provided with an arc-shaped sliding chute (5), the protection plate (4) is connected with the inner wall of the protection adjusting inner cylinder (3) in a sliding way through the arc-shaped sliding chute (5), the outer surface of the protective adjusting inner cylinder (3) and the inner wall of the protective adjusting cylinder (2) are fixedly connected with the same coil spring (6), the outer surface of the protective adjusting cylinder (2) is provided with a plurality of limiting ribs (12);

the left side of projection equipment (1) and the right-hand member fixed connection of mounting panel (8), the upper surface sliding connection of mounting panel (8) has slide bar (9), reset spring (10) have been cup jointed to the surface of slide bar (9), the upper and lower both ends difference fixed connection of reset spring (10) is at the surface of slide bar (9) and the upper surface of mounting panel (8), the bottom of slide bar (9) and the upper surface looks joint of limiting plate (11), the upper surface of projection equipment (1) and the bottom fixed connection of installation piece (23), the inner wall of installation piece (23) passes through bolt and electric telescopic handle (24) fixed connection, the left end of electric telescopic handle (24) and the right-hand member fixed connection of projection screen main part (25).

2. A projection system and projection screen as claimed in claim 1, wherein: the upper surface of projection equipment (1) and the lower surface fixed connection of connecting plate (14), the upper surface of connecting plate (14) and the bottom fixed connection of screw thread post (13), the top of screw thread post (13) and the lower surface fixed connection of diaphragm (18).

3. A projection system and projection screen as claimed in claim 2, wherein: the surface of screw thread post (13) and the surface threaded connection who adjusts a screw thread section of thick bamboo (15), the top of adjusting a screw thread section of thick bamboo (15) has articulated piece (17) through bearing swing joint, both ends all have first hinge bar (16) through round pin axle swing joint about articulated piece (17).

4. A projection system and projection screen as claimed in claim 3, wherein: the left side face and the right side face of the inner wall of the transverse plate (18) are both movably connected with second hinge rods (22) through hinge pins, and the bottom ends of the second hinge rods (22) are movably connected with the top ends of the corresponding first hinge rods (16) through hinge pins.

5. The projection system and projection screen of claim 4, wherein: the equal sliding connection in the left and right sides of diaphragm (18) inner wall has fixed plate (19), corresponds two fixed plate (19) one side of keeping away from each other and has all seted up spacing spout (20), the inner wall sliding connection of spacing spout (20) has spacing slider (21).

6. A projection system and a projection screen according to claim 5, wherein: one end, far away from the first hinged rod (16), of the second hinged rod (22) is movably connected to the outer surface of the corresponding limiting sliding block (21) through a pin shaft, and rubber pads are arranged on the surfaces, close to each other, of the two fixing plates (19).