CN213367995U - Rear projection projector with pull rod sound box - Google Patents
Rear projection projector with pull rod sound box Download PDFInfo
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- CN213367995U CN213367995U CN202022395869.4U CN202022395869U CN213367995U CN 213367995 U CN213367995 U CN 213367995U CN 202022395869 U CN202022395869 U CN 202022395869U CN 213367995 U CN213367995 U CN 213367995U
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- pull rod
- projector
- rear projector
- projection
- projection screen
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Abstract
The utility model discloses a take rear-projection projector of pull rod stereo set, which comprises a housin, imaging device, the speaker, the pull rod, rechargeable battery and mainboard, wherein, form the projection curtain through the casing at rear-projection projector, set up imaging device in the casing, form the picture with the video projection curtain, and still set up the speaker in the casing, make this rear-projection projector can broadcast video and sound and attract the customer, through the pull rod that sets up sliding connection at the casing back, make this rear-projection projector conveniently remove, be convenient for use at the stall night.
Description
Technical Field
The utility model relates to a projector technical field, in particular to rear-projection projector of electrified rod stereo set.
Background
With the rise of the economy of the stall at night, it is very important to draw the attention of the coming and going guests in the fierce competition. The excellent video and audio playing equipment is an effective method for inviting guests. If the products to be spread are played in a video and audio introduction mode, the attraction force can be greatly increased.
In the night market, people come and go fast, so the device needs a large screen (more than 20 inches) and large sound to attract the attention of guests. Also, due to the flexibility of the stall, the device needs to be easily movable and relatively light. Since it may be rainy at night, the device needs a certain waterproof function. Since it is not easy to have power near the stall, the device needs to be disconnected from the power supply to continuously play for more than 5 hours.
Among the existing similar products: the mode of television and sound equipment cannot meet the functions of moving and playing without a power supply; in the mode of tablet personal computer and sound equipment, the screen is too small to attract customers to watch; the square dance sound equipment screen is less, and the time of endurance is not enough, can not satisfy the requirement. Therefore, the development of a product that can satisfy the above needs is imminent.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a take rear-projection type projector of pull rod stereo set aims at satisfying the equipment needs large screen, the big sound attracts the customer at stall at night to it is convenient to remove, can break away from the long requirement of duration of power use.
In order to achieve the above object, the utility model provides a rear projection projector with pull rod stereo set, include:
the projection screen comprises a shell, a front cover, a back cover and a projection screen, wherein the shell is provided with a front surface, a back surface, a bottom surface and a top surface, the bottom surface is connected with the bottom ends of the front surface and the back surface, the top surface is arranged opposite to the bottom surface, an inclined surface is formed between the top surface and the front surface, and the inclined surface is a projection screen;
the imaging device projects an optical path to the projection screen to form a picture;
a speaker disposed inside the front face;
the pull rod is arranged on the back surface in a sliding mode so as to have a hidden state and a pulled-up state;
a rechargeable battery disposed within the housing;
a main board controlling the operation of the rear projector.
Optionally, the rear projector further comprises a mirror disposed inside the rear surface.
Optionally, the rear projector further comprises a display stand foldably connected to the top surface.
Optionally, the rear projector further includes a roller disposed on the bottom surface near the back surface.
Optionally, the rear projector further includes a support frame disposed on the bottom surface near the front surface.
Optionally, the front surface of the housing is further provided with a sound outlet, and the sound outlet is opposite to the speaker.
Optionally, the housing is provided with an interface.
Optionally, a waterproof cover is provided at the interface.
The utility model discloses technical scheme forms the projection curtain through the casing at rear-projection type projector, sets up imaging device in the casing, forms the picture with video projection to the projection curtain to still set up the speaker in the casing, make this rear-projection type projector can broadcast video and sound and attract the customer, through set up sliding connection's pull rod at the casing back, make this rear-projection type projector conveniently remove, be convenient for use at the stall at night.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of an internal structure of a rear projector according to the present invention;
fig. 2 is a schematic view of an external structure of the rear projector according to the present invention;
fig. 3 is a schematic diagram of the rear projector of the present invention attracting customers.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
9 | Reflecting |
| 2 | |
10 | Pull rod (hidden state) |
| 3 | |
11 | Display table |
| 4 | |
12 | Pull rod (pulling state) |
| 5 | |
13 | Projection picture |
| 6 | |
14 | |
| 7 | |
15 | |
| 8 | Rechargeable battery |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a rear-projection projector of electrified rod stereo set.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram of an internal structure of a rear projector according to the present invention; fig. 2 is a schematic view of an external structure of the rear projector according to the present invention; fig. 3 is a schematic diagram of the rear projector of the present invention attracting customers.
In an embodiment of the present invention, please refer to fig. 1, which provides a rear projector with a pull rod sound box, including: the projection screen comprises a shell 2, wherein the shell 2 is provided with a front surface, a back surface, a bottom surface and a top surface, the bottom surface is connected with the bottom ends of the front surface and the back surface, the top surface is arranged opposite to the bottom surface, an inclined surface is formed between the top surface and the front surface, and the inclined surface is a projection screen 1; the imaging device 5 projects an optical path to the projection screen 1 to form a picture; the loudspeaker 3 is arranged on the inner side of the front surface; the pull rod 10 is arranged on the back surface in a sliding mode, and has a hidden state and a pulled-up state; a rechargeable battery 8, wherein the rechargeable battery 8 is arranged in the shell 2; and the main board 4 controls the operation of the rear projection type projector.
Specifically, the rear projection projector is that spectators and the projector are positioned at two sides of a projection screen, the projector is arranged at the bottom in a machine body, when light projected from the projector irradiates to the semitransparent projection screen, part of the light is transmitted, and spectators see a projected picture through the transmitted light. The rear projector has a larger body, so that the rear projector can be transformed into a stall with a stall.
Specifically, referring to fig. 1, the housing 2 forms a body of the rear projector, and the front surface, the back surface, the bottom surface, and the top surface of the housing 2 are relative to the position of the client. The inner side refers to a side located inside the housing 2, and the outer side refers to a side located outside the housing 2.
Specifically, the inclined projection screen 1 is arranged between the top surface and the front surface, so that a user can watch videos conveniently. The projection screen 1 is made of semitransparent materials, light can conveniently penetrate through the projection screen 1, and the projection screen can be made of semitransparent plastic plates or ground glass sheets and the like.
Specifically, the imaging device 5 is a projector, and the imaging device 5 arranges optical elements according to an imaging principle and projects light rays to the projection screen 1 to form a picture. If the imaging device 5 is an ultra-short focus projection, the imaging device 5 directly projects light to the projection screen 1. If the optical path length projected to the projection screen 1 by the imaging device 5 is not long enough, a longer optical path length can be obtained by arranging the reflecting mirror 9 to obtain a larger projection picture.
Specifically, the imaging device 5 is further provided with a support structure, and the support structure is used for adjusting the angle of the imaging device 5, so that the projection screen 1 can be conveniently projected.
Specifically, referring to fig. 1, the pull rod 10 in fig. 1 is hidden and is accommodated integrally with the rear surface of the rear projector. The pull rod 10 is connected with the back side in a sliding mode, the sliding connection can be a sliding rail connection or a clamping connection through a buckle, the pull rod 10 slides out and is a pull rod 12 in a pulled-up state, please refer to fig. 2, and the pull rod 12 is convenient for moving the rear projection type projector.
Specifically, the rechargeable battery 8 supplies power to the whole projector, the image played by the imaging device 5 and the audio played by the loudspeaker 3 are both controlled by the main board 4, and the main board 4 also manages the charging and discharging performance of the rear projector.
The utility model discloses technical scheme forms projection screen 1 through casing 2 at rear-projection type projector, sets up imaging device 5 in casing 2, forms the picture with video projection screen 1 to still set up speaker 3 in casing 2, make this rear-projection type projector can play video and sound and attract the customer, through the pull rod 10 that sets up sliding connection at the 2 backs of casing, make this rear-projection type projector conveniently remove, be convenient for use at the stall at night.
Optionally, referring to fig. 1, the reflector 9 is disposed inside the back surface. By disposing the reflecting mirror 9 on the inner side of the rear surface, the optical path length of the imaging device 5 can be increased to the maximum extent, and the projection screen can be enlarged.
Optionally, referring to fig. 1, the rear projector further includes a display stand 11 connected to the top surface in a foldable manner.
Specifically, the top surface of the shell 2 is a simple product display space, so that the sold products can be conveniently displayed. The product display stand is provided with a backward-turning display stand 11 at the back, so that a larger display space can be obtained. The display stand 11 is arranged to be foldable to facilitate its use for unfolding display products and for housing a mobile rear projector.
Optionally, referring to fig. 1, the rear projector further includes a roller 7 disposed on the bottom surface near the back surface. The arrangement of the roller 7 is convenient for moving the rear projection projector.
Optionally, referring to fig. 1, the rear projector further includes a support frame 6 disposed on the bottom surface near the front surface. The arrangement of the support frame 6 enables the rear projection type projector to be placed more stably, and is convenient for spreading and displaying products at night.
Optionally, referring to fig. 2, a sound outlet 14 is further formed in the front surface of the housing 2, and the sound outlet 14 is opposite to the speaker 3. The sound outlet 14 facilitates the sound of the loudspeaker 3 to be emitted outwards, and the sound production effect of the loudspeaker 3 is increased.
Optionally, the housing 2 is provided with an interface (not shown in the figure).
Specifically, the interface can be used for charging, reading the content of a storage device, the content of a mobile phone on the same screen or accessing the content of a remote server through a wireless network, and can also be accessed with microphone audio, so that a shop owner can introduce products on site.
Optionally, referring to fig. 2, a waterproof cover 15 is disposed at the interface.
Specifically, the waterproof cover 15 may prevent splash water from damaging the internal circuit of the projector, and the waterproof cover 15 may be a silica gel waterproof cover 15.
The utility model discloses take rear-projection projector of pull rod stereo set to attract customer's schematic diagram refers to fig. 3, and the customer can see material object and video when the stand, hears the audio frequency introduction simultaneously for the product show is more comprehensive, makes this rear-projection projector be big as the competitiveness of stand equipment at night.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (8)
1. A rear projector with a pull rod sound box is characterized by comprising:
the projection screen comprises a shell, a front cover, a back cover and a projection screen, wherein the shell is provided with a front surface, a back surface, a bottom surface and a top surface, the bottom surface is connected with the bottom ends of the front surface and the back surface, the top surface is arranged opposite to the bottom surface, an inclined surface is formed between the top surface and the front surface, and the inclined surface is a projection screen;
the imaging device projects an optical path to the projection screen to form a picture;
a speaker disposed inside the front face;
the pull rod is arranged on the back surface in a sliding mode so as to have a hidden state and a pulled-up state;
a rechargeable battery disposed within the housing;
a main board controlling the operation of the rear projector.
2. The rear projector with a pullrod audio as claimed in claim 1, further comprising a mirror disposed inside the rear face.
3. A rear projector with a pullrod audio as claimed in claim 2, further comprising a display stand foldably connected to the top surface.
4. A rear projector with a pullrod audio as claimed in claim 3, further comprising rollers disposed on the bottom surface adjacent the back surface.
5. The rear projector with a pop-up speaker as claimed in claim 4, wherein the rear projector further comprises a support frame disposed on the bottom surface adjacent to the front surface.
6. The rear projector with a sound box having a pull rod as claimed in claim 5, wherein the front surface of the housing further has a sound outlet, and the sound outlet is opposite to the speaker.
7. The rear projector with a sound system having a pull rod of claim 6, wherein the housing has an interface.
8. A rear projector with a pullrod audio as claimed in claim 7, wherein a waterproof cover is provided at the interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395869.4U CN213367995U (en) | 2020-10-23 | 2020-10-23 | Rear projection projector with pull rod sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395869.4U CN213367995U (en) | 2020-10-23 | 2020-10-23 | Rear projection projector with pull rod sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213367995U true CN213367995U (en) | 2021-06-04 |
Family
ID=76132184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022395869.4U Active CN213367995U (en) | 2020-10-23 | 2020-10-23 | Rear projection projector with pull rod sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213367995U (en) |
-
2020
- 2020-10-23 CN CN202022395869.4U patent/CN213367995U/en active Active
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