Magnifier assembly and projection picture amplification system

Abstract

The utility model discloses a magnifying lens assembly and a projection picture magnifying system, the magnifying lens assembly comprises a magnifying lens and a mounting plate, the magnifying lens is arranged on the mounting plate, one side edge of the mounting plate is provided with an elastic pressing type buckle assembly, and the elastic pressing type buckle assembly comprises a pressing mechanism, a buckle mechanism and an elastic supporting mechanism; the buckling mechanism is rotationally connected to the mounting plate, the pressing mechanism and the elastic supporting mechanism abut against the buckling mechanism from the two opposite sides of the buckling mechanism respectively, and the pressing mechanism is used for abutting against the buckling mechanism under the pressing effect of external force so as to overcome the elastic force effect of the elastic supporting mechanism to rotate. The projection picture magnifying system comprises a projector and a magnifying lens assembly, a crack is formed in the edge of a front cover of the projector, the buckle mechanism is buckled into the crack and is fixed to the front cover in a buckled mode under the elastic force effect of the elastic supporting mechanism so that the magnifying lens assembly can be fixed to the front cover in a covering mode, and the magnifying lens right faces a projection lens of the projector.

Description

Technical Field

[0001] The utility model relates to projector accessories, in particular to a magnifying glass assembly and a projection picture magnification system using the magnifying glass assembly. Background Art

[0002] The features of convenient use and large screen of projection devices are deeply loved by users. With the increase of usage scenarios, users pursue a larger projection picture size to achieve a better viewing experience or atmosphere rendering. However, due to the hardware parameters of the projection optical machine restricting the size of the projection picture, it is difficult to further expand, and the further expansion of its usability is restricted. As a projection device expansion accessory, the panoramic mirror can be used for projectors to cooperate to magnify projection pictures such as starry sky projections so as to cover a large ceiling area.

[0003] The panoramic mirror can be fixed to the projector by using a manual flip tab to achieve the clamping connection between the panoramic mirror and the projector. However, when installing and disassembling the panoramic mirror, it is necessary to flip and pick out the tab with fingers, and the operation is relatively inconvenient. Summary of the Utility Model

[0004] In view of this, the utility model provides a magnifying glass assembly for magnifying a projector picture and a related projection picture magnification system, and the fixing method of the magnifying glass assembly and the projector is simple and easy to operate.

[0005] According to one aspect of the utility model, a magnifying glass assembly is provided, which includes a magnifying glass and a mounting plate. The magnifying glass is arranged on the mounting plate. An elastic pressing type snap component is arranged on one side edge of the mounting plate. The elastic pressing type snap component includes a pressing mechanism, a snap mechanism and an elastic supporting mechanism. The snap mechanism is rotatably connected to the mounting plate. The pressing mechanism and the elastic supporting mechanism respectively abut against the snap mechanism from opposite sides of the snap mechanism. The pressing mechanism is used for pressing the snap mechanism under the action of an external pressing force to rotate against the elastic force of the elastic supporting mechanism.

[0006] Further, a fixing seat protrudes from the one side edge of the mounting plate. The pressing mechanism is movably assembled in the fixing seat. The snap mechanism is rotatably connected to the fixing seat. The pressing mechanism presses the snap mechanism under the action of an external pressing force, so that the snap mechanism rotates.

[0007] Further, the snap mechanism includes a snap and a rotating shaft. The two ends of the rotating shaft are respectively fixedly connected to the fixing seat. The snap is rotatably connected to the rotating shaft. The snap includes a force receiving end and a snap end connected to each other. The rotating shaft and the snap are rotatably connected between the force receiving end and the snap end. The pressing mechanism and the elastic supporting mechanism respectively abut against opposite sides of the force receiving end.

[0008] Further, the fixing base is provided with a clamping hole; the pressing mechanism includes a button and a first spring. The button extends into and latches the clamping hole from the outer edge of the fixing base. The first spring is sleeved on a section of the button extending into the clamping hole and is in a compressed state. One end of the button passing through the clamping hole abuts against the stress-bearing end of the buckle.

[0009] Further, the section of the button extending into the clamping hole has a rivet structure, so as to extend into the clamping hole from one side of the clamping hole and latch the clamping hole from the other side of the clamping hole.

[0010] Further, the axial direction of the clamping hole is perpendicular to the axial direction of the magnifying glass.

[0011] Further, the elastic support mechanism includes a fixing block, a fixing post arranged on the back surface of the mounting plate, and a second spring sleeved on the fixing post; one end of the fixing post is connected to the fixing block, and the other end faces the stress-bearing end; the second spring is in a compressed state and one end abuts against the fixing block and the other end abuts against the stress-bearing end; the other end of the fixing post is aligned with the stress-bearing end of the buckle and there is a gap between them.

[0012] Further, the mounting plate includes opposite first side and second side. The magnifying glass is arranged between the first side and the second side. The elastic pressing buckle assembly is arranged on the first side of the mounting plate, and a fixing buckle is arranged at the second side on the back surface of the mounting plate; or, the elastic pressing buckle assemblies are arranged on both the first side and the second side of the mounting plate, and the pressing axes of the pressing mechanisms on both sides are on the same straight line.

[0013] Further, a plurality of limiting posts are arranged on the back surface of the mounting plate. The extending direction of the limiting posts is parallel to the axial direction of the magnifying glass; a ventilation opening corresponding to the air inlet of the front cover is formed on the mounting plate, and the limiting posts are located at both ends in the length direction of the ventilation opening.

[0014] According to another aspect of the present invention, a projection image magnifying system is provided, including a projector and the aforementioned magnifying glass assembly. A slit is formed at the edge of the front cover of the projector. The buckle mechanism is buckled into the slit and is kept buckled and fixed with the front cover under the elastic force of the elastic support mechanism, so as to cover and fix the magnifying glass assembly on the front cover, and the magnifying glass faces the projection lens of the projector.

[0015] The beneficial effects of the present utility model are reflected in that: the magnifying glass component of the present utility model is adapted to a projector with a slit provided at the edge of the front cover. The installation and connection between it and the projector are realized through an elastic pressing type snap component. During installation, only need to press the magnifying glass component towards the front cover, and the snap mechanism can automatically snap into the slit at the edge of the front cover to achieve fixation; during disassembly, only need to press the pressing mechanism at one side edge of the mounting plate, then the snap mechanism can be rotated against the elastic force of the elastic support mechanism to release the snap fixation with the front cover, and then directly pull it out. In short, the magnifying glass component of the present utility model can be installed by directly aligning and pressing it against the front cover of the projector, and can be disassembled by pressing the pressing mechanism at one side edge and gently pulling it out at the same time. It can be said that the operation is simple, convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic diagram of the magnifying glass component of the embodiment of the present utility model assembled to the projector.

[0017] Figure 2 FIG. is a schematic structural diagram of the magnifying glass component and the projector of the embodiment of the present utility model.

[0018] Figure 3 FIG. is a schematic structural diagram of the back view of the magnifying glass component of the embodiment of the present utility model.

[0019] Figure 4 FIG. Figure 3 is an enlarged view of the elastic pressing type snap component A in FIG..

[0020] Figure 5 FIG. is a disassembled schematic diagram of the elastic pressing type snap component of the embodiment of the present utility model.

[0021] Figure 6 FIG. Figure 5 is an enlarged view of the partial B in FIG..

[0022] DESCRIPTION OF THE REFERENCE NUMERALS: 1 - magnifying glass component, 10 - magnifying glass, 11 - mounting plate, 111 - limiting post, 112 - ventilation opening, 12 - fixing seat, 121 - card hole, 13 - button, 131 - rivet structure, 14 - first spring, 15 - snap, 151 - stress end, 152 - snap end, 16 - rotating shaft, 17 - fixing block, 18 - fixing post, 19 - second spring, 2 - projector, 21 - slit, 22 - front cover, 221 - air inlet, 23 - projection lens, A - elastic pressing type snap component, A1 - fixing snap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with the drawings, specific embodiments and examples. The purpose of providing the examples is only for illustration and not for any limitation.

[0024] Please refer toFigure 1 and Figure 2 , an embodiment of the present utility model provides a magnifying glass assembly 1, which can be used as an additional accessory for a projector 2 and is used to adapt to the front cover 22 of the projector with a slit 21. The magnifying glass assembly 1 is configured to be covered and fixed on the front cover 22 of the projector, aligning its magnifying glass with the projection lens 23. The overall magnifying glass 10 has a negative refractive power and can expand the light beam, thereby achieving the magnification of the projection screen. More importantly, the magnifying glass assembly is fixed to the front cover of the projector in a more convenient and labor-saving manner.

[0025] Please refer to Figures 3 to 6 , the magnifying glass assembly 1 provided by the embodiment of the present invention includes a magnifying glass 10 and a mounting plate 11, and the magnifying glass 10 is arranged on the mounting plate 11. An elastic pressing buckle assembly A is provided at the first side edge of the mounting plate 11. The elastic pressing buckle assembly A includes a fixed seat 12, a button 13, a first spring 14, a buckle 15, a rotating shaft 16, a fixed block 17, a fixed column 18 and a second spring 19; the fixed seat 12 protrudes from the first side edge of the mounting plate 11, both ends of the rotating shaft 16 are fixedly connected to the fixed seat 12, the buckle 15 is rotatably connected to the rotating shaft 16, the buckle 15 includes a connected force receiving end 151 and a buckle end 152, and the part where the buckle 15 is rotatably connected to the rotating shaft 16 is located between the force receiving end 151 and the buckle end 152; the fixed seat 12 is provided with a card hole 121, the axial direction of the card hole 121 is perpendicular to the axial direction of the magnifying glass 10, the button 13 extends into and buckles the card hole 121 from the outer edge of the fixed seat 12 to prevent it from coming out, and the button 13 protrudes and is exposed on the edge of the mounting plate 11 for easy pressing. The first spring 14 is sleeved on a section of the button 13 extending into the card hole 121 and is in a compressed state. The first spring 14 is, for example, a compression spring. One end of the first spring abuts against the wall surface of the card hole 121 facing the button 13, and the other end abuts against the button 13. The end of the button 13 passing through the card hole 121 abuts against the first side of the force receiving end 151 of the buckle 15; the fixed block 17 is arranged on the back of the mounting plate 11, one end of the fixed column 18 is connected to the fixed block 17 and the other end faces the force receiving end 151 of the buckle 15, and there is a gap between the other end of the fixed column 18 and the force receiving end 151 which is aligned with the force receiving end 151. The second spring 19 is sleeved on the fixed column 18 and is in a compressed state. The second spring 19 is, for example, a compression spring. One end of the second spring 19 abuts against the fixed block 17 and the other end abuts against the second side of the force receiving end 151 of the buckle 15, where the first side and the second side of the force receiving end 151 are opposite sides. The axis of the first spring 14 and the card hole 121 may be on the same straight line.

[0026] In this way, when the magnifying glass component 1 is pressed against the front cover 22 of the projector, the latching end 152 of the latch 15 can automatically rotate when it touches the edge of the slit 21, and automatically reset after entering the slit 21 to be latched into the slit 21 to fix the magnifying glass component. When the button 13 is pressed by an external force, the pressing force overcomes the elastic force of the second spring 19 on the second side of the force-receiving end 151, causing the latch 15 to rotate. This rotation releases the latching between the latching end 152 and the slit 21. That is to say, when disassembling, only need to press the button 13 to disengage the latch 15 from the slit, and then the magnifying glass component 1 can be removed from the front cover 22. When the button 13 is released, the elastic force of the first spring 14 causes the button 13 to pop back to its original position.

[0027] In some specific embodiments, a section of the button 13 extending into the card hole 121 has a rivet structure 131. This section of the rivet structure 131 extends into the card hole 121 from the outside and latches the card hole from the inside of the card hole to prevent the button 13 from disengaging from the card hole 121.

[0028] In some specific embodiments, the mounting plate 11 includes opposite first and second side edges. The magnifying glass is disposed between the first side edge and the second side edge. The elastic pressing type latch assembly A is disposed on the first side edge of the mounting plate 11, and a fixed latch A1 is provided at the second side edge on the back surface of the mounting plate 11; or, elastic pressing type latch assemblies A are provided on both the first side edge and the second side edge of the mounting plate 11, and the pressing shafts of the pressing mechanisms on both sides are located on the same straight line. A fixed latch A1 is provided on the back surface of the mounting plate 11 on the other side opposite to the side where the elastic pressing type latch assembly A is provided. The fixed latch A1 is also used to be latched into the slit 21 of the front cover 22 of the projector. The latches on both sides of the mounting plate cooperate to fix the mounting plate on the front cover without disengaging. During installation, the user can first latch the fixed latch A1 into the slit of the front cover, and then press the latch 15 of the elastic pressing type latch assembly A on the other side into the slit on the other side of the front cover.

[0029] Or, in some other embodiments, the above-mentioned fixed latch A1 can also be replaced with a latch assembly identical to the elastic pressing type latch assembly A. That is, the elastic pressing type latch assemblies are symmetrically provided on both sides of the mounting plate 11. Preferably, the pressing shafts of the buttons on both sides are located on the same straight line, enabling the user to more easily latch the mounting plate into the front cover.

[0030] In some preferred embodiments, a plurality of limiting posts 111 are provided on the back surface of the mounting plate 11. The extending direction of the limiting posts 111 is parallel to the axial direction of the magnifying glass 10 and perpendicular to the back surface of the mounting plate. In addition, a ventilation opening 112 corresponding to the air inlet 221 of the front cover is formed on the mounting plate 11, and the limiting posts 111 are located at both ends in the length direction of the ventilation opening 112. In this way, on the one hand, it prevents the mounting plate from blocking the air inlet of the front cover and affecting ventilation and heat dissipation; on the other hand, the limiting posts 111 can extend into and be stuck at both ends of the air inlet 221 of the front cover to prevent the mounting plate 11 from rotating relative to the front cover 22.

[0031] Another embodiment of the present invention provides a projection image magnifying system, which includes the magnifying glass assembly 1 of the previous embodiment and a projector 2. A slit 21 is formed at the edge of the front cover 22 of the projector 2. The buckle 15 of the magnifying glass assembly 1 can be buckled into the slit 21 and is kept buckled and fixed with the front cover 22 under the elastic force of the second spring 19 to cover and fix the magnifying glass assembly 1 on the front cover 22, and at the same time, the magnifying glass 10 is directly opposite to the projection lens 23 of the projector 2.

[0032] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those skilled in the technical field to which the present invention belongs, without departing from the concept of the present invention, several equivalent substitutions or obvious modifications can be made, and as long as the performance or use is the same, they should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A magnifying glass component, characterized in that: It includes a magnifying glass and a mounting plate. The magnifying glass is provided on the mounting plate. An elastic pressing buckle assembly is provided on one side edge of the mounting plate. The elastic pressing buckle assembly includes a pressing mechanism, a buckle mechanism, and an elastic support mechanism; the buckle mechanism is rotatably connected to the mounting plate, and the pressing mechanism and the elastic support mechanism respectively abut against the buckle mechanism from opposite sides of the buckle mechanism, and the pressing mechanism is used to press against the buckle mechanism under the action of an external pressing force to rotate against the elastic force of the elastic support mechanism.

2. The magnifying glass assembly according to claim 1, wherein: A fixing seat protrudes from the one side edge of the mounting plate. The pressing mechanism is movably assembled in the fixing seat, and the buckle mechanism is rotatably connected to the fixing seat; the pressing mechanism presses against the buckle mechanism under the action of an external pressing force, causing the buckle mechanism to rotate.

3. The magnifying glass assembly according to claim 2, wherein: The buckle mechanism includes a buckle and a rotating shaft. Both ends of the rotating shaft are fixedly connected to the fixing seat respectively, and the buckle is rotatably connected to the rotating shaft; the buckle includes a connected force-receiving end and a buckling end. The rotating shaft and the buckle are rotatably connected between the force-receiving end and the buckling end, and the pressing mechanism and the elastic support mechanism respectively abut against opposite sides of the force-receiving end.

4. The magnifying glass assembly according to claim 3, characterized in that: The fixing seat is provided with a clamping hole; the pressing mechanism includes a button and a first spring. The button extends into and latches the clamping hole from the outer edge of the fixing seat. The first spring is sleeved on a section of the button extending into the clamping hole and is in a compressed state. One end of the button passing through the clamping hole abuts against the force-receiving end of the buckle.

5. The magnifying glass component according to claim 4, wherein: The section of the button extending into the clamping hole has a rivet structure to extend into the clamping hole from one side of the clamping hole and latch the clamping hole from the other side.

6. The magnifying glass assembly according to claim 4, characterized in that: The axial direction of the clamping hole is perpendicular to the axial direction of the magnifying glass.

7. The magnifying glass assembly according to claim 3, wherein: The elastic support mechanism includes a fixing block, a fixing column provided on the back surface of the mounting plate, and a second spring sleeved on the fixing column; one end of the fixing column is connected to the fixing block and the other end faces the force-receiving end; the second spring is in a compressed state and one end abuts against the fixing block and the other end abuts against the force-receiving end; the other end of the fixing column is aligned with the force-receiving end of the buckle and there is a gap between them.

8. The magnifying glass component according to any one of claims 1 to 7, characterized in that: The mounting plate includes opposite first side and second side. The magnifying glass is provided between the first side and the second side. The elastic pressing buckle assembly is provided on the first side of the mounting plate, and a fixing buckle is provided on the back surface of the mounting plate at the second side; or, the elastic pressing buckle assemblies are provided on both the first side and the second side of the mounting plate, and the pressing axes of the pressing mechanisms on both sides are on the same straight line.

9. The magnifying glass component according to claim 1, characterized in that: A plurality of limiting columns are provided on the back surface of the mounting plate. The extending direction of the limiting columns is parallel to the axial direction of the magnifying glass; a ventilation opening is provided on the mounting plate, and the limiting columns are located at both ends in the length direction of the ventilation opening.

10. A projection screen magnification system, characterized in that: Comprising a projector and a magnifying glass assembly according to any one of claims 1-9, a slit is provided at the edge of the front cover of the projector, the buckle mechanism is buckled into the slit, and is kept buckled and fixed with the front cover under the elastic force of the elastic support mechanism, so as to cover and fix the magnifying glass assembly on the front cover, and the magnifying glass faces the projection lens of the projector.

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