WO2018201766A1

WO2018201766A1 - Projector

Info

Publication number: WO2018201766A1
Application number: PCT/CN2018/074748
Authority: WO
Inventors: 陈波; 李屹
Original assignee: 深圳市光峰光电技术有限公司
Priority date: 2017-05-04
Filing date: 2018-01-31
Publication date: 2018-11-08
Also published as: CN207067640U

Abstract

A projector, comprising a projector body (10), a support part (30) and a screwing mechanism. The support part (30) comprises a support member (50); a plug-in terminal (42) is arranged on the support part (30) and the screwing mechanism rotatably and fixedly connects the projector body (10) and the support part (30). The projector body (10) may rotate to fit with the support member (50) and may rotate to form an angle with the support member (50) so that the support member (50) supports the projector. The structure for adjusting the pitch angle of the projector is simple and low in cost, and the plug-in terminal (42) may always be in a good working position without being affect by adjustment of the pitch angle of the projector.

Description

projector

Technical field

The utility model relates to the field of optical technology, in particular to a projector.

Background technique

In the prior art, a projector such as a pico projector is more portable because of its small size and portability, and can be used for projection of graphic images in various occasions.

technical problem

In general, the pitch angle of the pico projector needs to be adjusted to project the projected content to the desired projection surface and to obtain excellent projection quality. There is a pitch angle adjusting mechanism, which comprises a foot disposed at the bottom of the pico projector and capable of rotating and adjusting the height. The projector is supported by the supporting surface by means of the supporting foot, and the pitch angle adjustment is realized by adjusting the telescopic length of the leg relative to the projector. Mechanism, but the pitch angle adjustment mechanism has a complicated structure and a high cost. There is another pitch angle adjusting mechanism that includes a rectangular plate-shaped support member disposed at a substantially intermediate position of the bottom of the projector body, the support member rotating parallel to a straight line of the bottom surface of the projector body, The support member is rotated about the axis to different positions to support the projector body on the support surface and to adjust the pitch angle of the projector. However, when the support member rotates around the axis, the relative motion of the projector body is also integrally Rotating around the above-mentioned axis, but the projector body is provided with a power supply terminal, a data terminal, etc., which are electrically connected to the projector body via a cable, with respect to the rear side portion of the front side portion of the projection lens. When the projector body rotates, the extension direction of the plug terminal will form an angle with the support surface, and even the plug terminal faces the support surface, thereby making it difficult to plug the power cable, such as a USB flash disk data memory. In the plug-in terminal, the projector receives the power or data signal transmitted by the plug-in terminal via the cable, which adversely affects. .

Therefore, in view of the deficiencies of the prior art, it is urgent to propose a structure for adjusting the pitch angle of the projector, which is simple, and the adjustment of the pitch angle does not adversely affect the use of the plug terminal. .

Technical solution

In view of this, the present invention provides a projector to solve the technical problem that the structure of the conventional projector adjusting the pitch angle is complicated, and the adjustment of the pitch angle is likely to adversely affect the use of the plug terminal.

In order to achieve the above object, the utility model provides the following technical solutions:

The projector includes: a projector body, a support portion, and a rotation and fastening mechanism, wherein the support portion includes a support member, and the insertion portion is disposed on the support portion, and the rotation fixing mechanism rotatably and fixedly connects the projector body and the support portion. The projector body can be rotated to fit the support and can be rotated to an angle with the support to support the support to the projector.

Further, the support portion further includes an adapter, the support member has a plate shape, the support member is fixedly connected to the adapter member, the plug terminal is disposed on the conversion member, and the projector body and the conversion member are rotatably and fixedly connected.

Further, the projector body includes a first side portion for projecting a light beam from the lens and a second side portion opposite to the first side portion, the adapter is disposed adjacent to the second side portion, and the adapter includes an adapter And a plug terminal disposed on the adapter body, the support member extending from the adapter toward the first side portion.

Further, the rotation mechanism includes a first screw disposed on the adapter body and a second screw disposed on the projector body, and the projector body is rotated and fixed relative to the first screw about the second fastener.

Further, the adapter body is a hollow cylinder, and a first screw is disposed inside the cylinder, and the plug terminal extends from the opening of the surface of the cylinder toward the inside of the cylinder.

Further, the extending direction of the plug terminal is parallel to the extending direction of the support member.

Further, the second side portion of the projector body is provided with a preset notch relative to the first side portion, the adapter is disposed in the preset notch, and the first rotating device and the second rotating device are respectively disposed in the opposite second The side and the free end of the adapter body.

Further, the support member is a rectangular plate having a width in a direction parallel to the extending direction of the second side portion being greater than or equal to one third of the extending length of the second side portion, and a length of the support member in a direction perpendicular to the extending direction of the second side portion It is greater than or equal to one-half of the distance between the first side portion and the second side portion.

Further, the bottom surface of the projector body is provided with a groove, the shape of the groove is adapted to the shape of the support member, and the groove can accommodate the support member therein.

Further, the projector further includes a cable electrically connecting the projector body and the plug terminal, the cable being disposed inside the projector body and the adapter.

Further, the first rotating device includes a rotating shaft, and the second rotating device includes a hollow connecting sleeve, the rotating shaft is inserted into the connecting sleeve, and a plurality of engaging teeth are formed on the outer wall of the rotating shaft, the engaging teeth extend axially along the rotating shaft, and the surface thereof In the shape of an arc, a plurality of limiting protrusions extending along the axial direction of the connecting sleeve are distributed on the inner wall of the connecting sleeve, and the surface of the limiting protrusion is curved, and the adjacent two limiting protrusions are formed to cooperate with the teeth of the connecting teeth. The card slot and the rotation of the rotating shaft in the connecting sleeve can engage the latches on the rotating shaft in different card slots on the inner wall of the connecting sleeve.

Beneficial effect

Compared with the prior art, the technical solution provided by the utility model has the following advantages:

For the adjustment of the pitch angle of the projector, the projector body rotates relative to the support of the support portion, and the plug terminal provided on the support portion is fixed in position relative to the support member, so that the support member remains in pairs regardless of the change in the pitch angle While the projector is being supported, the plug-in terminal is also kept in a well-received working position, ensuring the normal use of the projector, and the structure in which the projector achieves the pitch angle adjustment is simple and low in cost.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

1 is a schematic structural view showing a rear side direction of a projector and a support member forming a certain angle with a bottom surface of a projector body according to an embodiment of the present invention;

2 is a schematic structural view showing a rear side direction of a projector, a support member and a bottom surface of the projector body, and a data memory for being inserted into the plug terminal according to an embodiment of the present invention;

3 is a schematic structural view showing a data memory inserted into a plug terminal of the projector shown in FIG. 1;

4 is a schematic structural view of a bottom surface of a projector according to an embodiment of the present invention;

5 is a schematic structural view of a front side direction of a projector (the marker has been hidden) according to an embodiment of the present invention;

Description of the reference signs:

10--projector body; 11--first side; 12--second side; 13-- bottom surface; 14--groove; 15--preset notch; 20--lens; 30--support 40--Adapter; 41--Adapter body; 42--Plug terminal; 43--opening; 50--support member; 60-U disk; 70--marker.

Embodiments of the invention

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to FIGS. 1 to 5 and the embodiments. It is to be understood that the embodiments described below are merely illustrative of the invention and are not intended to limit the invention.

As an object of the present invention, the projector embodiment provided by the present invention is described in detail below. Referring specifically to FIGS. 1 to 5, the projector includes a projector body 10 that implements a projection function and performs a projector body 10. The support portion 30 supports the support portion 30 at different pitch angles. The support portion 30 includes a support member 50. The support portion 30 is provided with a plug-in terminal 42. The plug-in terminal 42 can be a power supply terminal for plugging the power cord or for inserting a data memory. The number of connected data terminals and the number of plug-in terminals can be set according to actual needs. In the present embodiment, a USB flash drive (hereinafter simply referred to as a USB flash drive) is used as a data memory and a USB interface as the plug-in terminal 42 as an example. The projector further includes a screwing mechanism (not shown), and the projector body 10 and the support portion 30 are rotatably and fixedly connected by a screwing mechanism. It should be noted that the screwing mechanism can be used, for example, to keep the notebook cover differently open. The angle and the opening maintaining force can be realized according to the actual need to adjust the rotating structure or the rotating structure for adjusting and fixing the display angle of the desktop display, that is, the rotating mechanism that connects the two components rotatably and fixedly It belongs to the commonly used technology in the field. The rotation of the projector body 10 relative to the support portion 30 allows the bottom surface 13 of the projector body 10 to be attached to the support member 50, and the projector body 10 can be angled with the support member 50, such as the bottom surface 13 of the projector body 10. Forming an angle with the entire support member 50, the size of the certain angle satisfies the requirement of the pitch angle adjustment range of the projector, so that the support member 50 supports the projector body 10, and therefore, the projector body 10 is adjusted in the pitch angle range. When the inner rotation is performed to obtain a desired projector pitch angle, the position of the plug terminal 42 is always fixed with respect to the support member 50, so that the projector is tilted regardless of the pitch angle of the projector obtained after the projector body 10 is rotated. The position of the terminal 42 is not affected by the change of the pitch angle, so that the position of the plug terminal 42 with respect to the support surface for supporting the support does not change, and the insertion and extraction operation of the U disk 60 to the plug terminal 42 is ensured. Not affected. It can be understood that the plug terminal 42 can be regarded as an interface plug terminal, and the USB flash drive 60 is provided with a socket plug terminal, and the two terminals are plugged and coupled to realize communication of data signals of the two.

As a specific embodiment, the support portion 30 includes an adapter 40. The support member 50 has a substantially rigid plate shape and is supported by the plate-shaped support member 50. The plate-shaped support member 50 is in surface contact with the support surface. The projector body 10 is supported, and therefore, the projector body 10 can obtain a highly stable support. It can be understood that in order to achieve the same function, the support member 50 can adopt other shapes and structures, and only needs to function as a rigid support. In order to realize the rigid support function, the support member 50 is a rigid body, and the rigid body is a rigid material having a certain rigidity. Preferably, the material of the support member 50 can be a conventional hard plastic or metal. The support member 50 is fixedly coupled to the adapter member 40. For example, the support member 50 and the adapter member 40 may be integrally formed or the support member 50 may be fixed to the adapter member 40 by welding, snapping, or the like. The plug-in terminal 42 is disposed on the adapter 40, and the projector body 10 and the conversion member 40 are rotatably and fixedly connected by a screwing mechanism.

Further, the projector body 10 includes a first side portion 11 for projecting a light beam by the lens 20 and a second side portion 12 opposite to the first side portion 11. It is known that the projection surface of the projector is opposite to the projection surface of the projector. The side portion 11 is located on the front side of the projector, and the second side portion 12 is located on the rear side of the projector. The adapter 40 is adjacent to and connected to the second side portion 12, and the adapter 40 includes an adapter body 41 and a plug terminal 42 disposed on the adapter body 41. The support member 50 is oriented by the adapter 40 It extends in a direction close to the first side portion 11. In this case, when the projector body 10 is rotated about the adapter 40 to adjust the pitch angle of the lens 20, the position of the plug terminal 42 is always kept constant, and therefore, the use of the U disk is not affected.

Preferably, the above-mentioned rotating mechanism comprises a first rotating device disposed on the adapter body 41 and a second rotating device disposed on the projector body 10, and the projector body 10 is wound around the second rotating body relative to the first The rotating fastener is rotated and fixed, and the first rotating screw and the second rotating fastener can adopt the rotating shaft and the shaft hole which cooperate with each other, and the rotating position of the rotating shaft in the axial hole can be realized by adding a damping coefficient or a damping component between the two. The rotation is fixed.

Further, the adapter body 41 is a hollow cylinder, and a first screw is disposed inside the cylinder. The plug terminal 42 extends from the opening 43 of the surface of the cylinder toward the inside of the cylinder, and the user can pass the USB disc through the opening 43. 60 is inserted into the plug terminal 42 or the U disk 60 is pulled out from the plug terminal 42. Preferably, the adapter body 41 is of the same rigid hard material as the support member 50.

Preferably, the extending direction of the plug terminal 42 is parallel to the extending direction of the support member 50. It is understood that, in general, the support member 50 is integrally supported with the horizontal support surface to support the projector body 10 on the horizontal support surface. Therefore, the extending direction of the plug-in terminal 42 is generally a horizontal direction, so that the user can smoothly apply the force of inserting or extracting the U-disk relative to the plug-in terminal 42, and the overall appearance of the projector is beautiful, and The plug terminal 42 and the horizontal support surface are kept at a certain distance. During the insertion and extraction of the U disk 60 and the use thereof, the U disk 60 does not collide or interfere with the support surface, thereby ensuring good use of the projector. In addition, the plug terminal 42 can also extend in a direction away from the support member 50, so that the user can insert the U disk 60 obliquely with respect to the support surface, and the force is relatively more convenient.

In order to make the overall structure of the projector compact and occupy a small space, further, the second side portion 12 of the projector body 10 is provided with a preset notch 15 relative to the first side portion 11 , and the support portion 30 is disposed in the preset notch 15 . Thereby the combination of the second side portion 12 and the support portion 30 is relatively flush with the first side portion 11, and the first and second fastening members are respectively disposed at the opposite sides of the second side portion 12 and the adapter body 41 At the end.

As a further improvement, in order to improve the support stability of the support member 50 supporting the projector body 10, the support member 50 is set as a rectangular plate, and the width of the support member 50 in the direction parallel to the extension of the second side portion 12 is greater than or equal to the second side portion. One third of the extension length, the length of the support member 50 in the direction perpendicular to the direction in which the second side portion 12 extends is greater than or equal to one-half the distance between the first side portion 11 and the second side portion 12.

Preferably, the bottom surface 13 of the projector body 10 is provided with a recess 14 having a shape adapted to the shape of the support member 50, and the recess 14 can accommodate the support member 50 therein. In this way, when the support member 50 is received in the recess 14, the space occupied by the projector can be reduced, and the projector can be stored and carried.

It should be noted that, for the projector body 10 and the plug-in terminal 42 described above, the two are electrically connected by a cable disposed inside the projector body 10 and the adapter 40, specifically, in the transfer. The body 41 and the projector body 10 are respectively provided with corresponding openings for the cable to pass, and the circuit board disposed in the projector body 10 receives power or/and data signals from the plug terminals 42 to implement the projector. normal work.

Further, the adapter body 41 is disposed away from the free end end face of the second side portion 12 with a marking member 70. When the projector body 10 is rotated to adjust the pitch angle of the projector, the indicator member 70 is opposite to the rotated projector. The position of the body 10 does not change and remains in the desired position for display. Therefore, the identifiability of the projector is improved by providing a marker 70 such as a trademark or a brand on the end face of the adapter body 41 facing the observer which is not affected by the pitch angle adjustment.

The following further describes a specific embodiment of the rotation mechanism. The first screw on the adapter body 41 includes a rotating shaft fixed to a central position inside the cylinder of the adapter body 41. For example, the rotating shaft can be The clip is fixed in a shaft hole inside the cylinder. Preferably, the shaft extends inside the cylinder toward the second side portion 12 and extends beyond the barrel, and the second screw of the projector body 10 includes a hollow connection. The sleeve may be provided with a recessed hole on a side of the second side portion 12 facing the support portion 30, and the connecting sleeve is fixed in the recessed hole, the connecting sleeve is coaxial with the rotating shaft, and the connecting sleeve is used for extending with the rotating shaft The ends are connected so that the shaft is inserted into the sleeve. a plurality of latching teeth are formed on the outer wall of the rotating shaft, and a plurality of latching grooves are formed on the inner wall of the connecting sleeve; preferably, the latching teeth extend axially along the rotating shaft, and the surface thereof is curved; and the inner wall of the connecting sleeve is distributed with a plurality of edges The limiting protrusion of the connecting sleeve extends axially, and the surface of the limiting protrusion is curved; a card slot is formed between the two adjacent limiting protrusions to cooperate with the engaging teeth. A plurality of the limiting protrusions form a plurality of the above-mentioned card slots. The connecting sleeve is disposed at the end of the rotating shaft. The latching fit is disposed in the slot of the connecting sleeve. The card slot limits the teeth of the card, thereby hindering the rotation of the shaft. When the force of driving the connecting sleeve relative to the rotating shaft reaches a certain degree, the arc-shaped engaging teeth can overcome the limiting action of the above-mentioned card slot, slide out from the slot, and move along the curved limiting convex surface to In the adjacent card slot, the relative angle of the support portion 40 and the projector body 10 is adjusted. If further adjustment is needed, it is only necessary to continue to rotate the shaft until it is adjusted to a suitable angle. At this time, the position of the projector body 10 is fixed by the cooperation of the latching and the card slot, thereby achieving the angle adjustment and fixing of the projector body 10 relative to the support member 50. More specifically, when adjusting the pitch angle of the projector, the user's one hand grips the support member 50 or presses the plate plane of the support member 50 against the support surface, and the user's other hand operates the projection. The instrument body 10 rotates the connecting sleeve relative to the rotating shaft and overcomes the damping between the engaging teeth and the card slot until it is rotated to a desired pitch angle. At this time, the damping between the latch and the card slot prevents the projector body 10 from being removed. The rotation prevents the pitch angle from changing. The pitch angle can be understood as the angle between the plane of the support member 50 and the plane of the projector body 10. In addition, the damping coefficient between the latch and the card slot can be obtained by designing the contact surface size of the latch and the card contact surface and the friction coefficient of the contact surface. In addition, the above description is made in which the rotating shaft included in the support portion 30 and the connecting sleeve included in the projector body 10 are rotatably and fixedly coupled. Alternatively, the supporting portion 30 may include a connecting sleeve and the projector body 10 may include a rotating shaft.

In the above projector, the support member 50 for adjusting the projection angle is located below the bottom surface 13 of the projector body 10, and the connecting sleeve provided by the projector body 10 is engaged with the rotating shaft provided by the support portion 30 to which the support member 50 is fixedly connected. Thereby achieving the effect of use. In use, the projector body 10 is rotated relative to the support portion 30 while maintaining the support member 50 in contact with the support surface such that the lens 20 on the projector body 10 forms a desired pitch angle with the support surface, and the plug terminal 42 is inserted. The U disk 60 is always in a substantially horizontal state, at which time the lens 20 projects the projected image to the desired area.

When used, the projector body 10 can be rotated such that the support member 50 is received in the recess 14 provided on the bottom surface 13 of the projector body 10 to facilitate storage and carrying of the projector.

The structure of the projector provided by the embodiment for adjusting the pitch angle is simple, and the pitch angle can be adjusted stably and at a large angle, and the change of the pitch angle does not adversely affect the operation of the plug terminal 42. Ensure the projector works properly.

The above is a further detailed description of the present invention in conjunction with the specific embodiments, and the specific implementation of the present invention is not limited to the description. For those skilled in the art to which the present invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

In the present invention, the terms "connected", "fixed" and the like should be understood broadly, unless otherwise clearly defined and limited. For example, "fixed" may be a fixed connection, or may be detachably connected, or integrated; It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. The terms "first", "second", and the like are used for descriptive purposes only and are not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, technical features defining "first", "second", etc., may explicitly or implicitly include one or more of the features. Therefore, the specific meanings of the above terms in the present invention can be understood by those skilled in the art on a case-by-case basis. It should be noted that, in the present invention, each of the support member and the adapter assembly is disposed at one end of the second side of the projector body, but the support member and the adapter assembly are respectively provided. The number and arrangement position may be set according to actual needs, for example, the support member and the adapter assembly are respectively disposed at two ends of the second side portion or the support member and the adapter assembly are disposed at the middle portion of the second side portion, etc. The person can refer to the above description to achieve.

The above description is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structure made by using the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields. All are considered to be included in the scope of patent protection of the present invention.

Claims

1. A projector, characterized in that it comprises:

Projector body;

a support portion, the support portion includes a support member, and a plug-in terminal is disposed on the support portion;

a screwing mechanism that rotatably and fixedly connects the projector body and the support portion;

The projector body is rotatable to conform to the support and rotatable to an angle with the support to support the support to the projector.

2. A projector according to claim 1 wherein:

The support portion further includes an adapter, the support member has a plate shape, the support member is fixedly connected to the adapter member, the plug terminal is disposed on the conversion member, and the projector body is The conversion member is rotatably and fixedly coupled.

3. A projector according to claim 2 wherein:

The projector body includes a first side portion provided with a light beam for projecting a lens and a second side portion opposite to the first side portion, the adapter member being disposed adjacent to the second side portion, The adapter includes an adapter body and a plug terminal disposed on the adapter body, the support member extending from the adapter toward the first side portion.

4. A projector according to claim 3 wherein:

The rotation mechanism includes a first screw disposed on the adapter body and a second fastener disposed on the projector body, the projector body being wrapped around the second fastener relative to the The first rotary firmware is rotated and fixed.

5. A projector according to claim 4 wherein:

The adapter body is a hollow cylinder, and the first screw is disposed inside the cylinder, and the plug terminal extends from the opening of the surface of the cylinder toward the inside of the cylinder.

6. The projector of claim 5 wherein:

The extending direction of the plug terminal is parallel to the extending direction of the support member.

7. A projector according to claim 4 wherein:

The second side of the projector body is provided with a preset notch relative to the first side portion, the adapter is disposed in the preset notch, and the first screw and the second Screws are respectively disposed at opposite second sides and at the free ends of the adapter body.

8. A projector according to claim 3 wherein:

The support member is a rectangular plate having a width in a direction parallel to the extending direction of the second side portion greater than or equal to one third of an extension length of the second side portion, and the support member is perpendicular to the second portion The length in the side extension direction is greater than or equal to one-half the distance between the first side portion and the second side portion.

9. The projector of claim 1 wherein:

The bottom surface of the projector body is provided with a groove, the shape of the groove is adapted to the shape of the support member, and the groove can accommodate the support member therein.

10. A projector according to any one of claims 2 to 9, wherein:

The projector further includes a cable electrically connecting the projector body and the plug terminal, the cable being disposed inside the projector body and the adapter.

The projector according to any one of claims 4 to 9, characterized in that:

The first rotating piece includes a rotating shaft, and the second rotating piece includes a hollow connecting sleeve, the rotating shaft is inserted into the connecting sleeve, and a plurality of engaging teeth are formed on the outer wall of the rotating shaft, and the engaging teeth are Extending axially along the rotating shaft, and having a curved surface, the inner wall of the connecting sleeve is distributed with a plurality of limiting protrusions extending axially along the connecting sleeve, and the limiting convex surface is curved. A card slot is formed between the two adjacent limiting protrusions, and the rotation of the rotating shaft in the connecting sleeve can engage the latch on the rotating shaft to the inner wall of the connecting sleeve. Inside the different card slots.