Protective components and projection equipment

Abstract

The embodiment of the present invention provides a protective component and a projection device. The protective component includes a snap-fitting part, a connecting part and a first adsorption part. The snap-fitting part has a receiving hole. The snap-fitting part is used to snap-fit ​​on the support of the lens of the projection light machine so that the lens of the projection light machine is received in the receiving hole. The snap-fitting part has a side wall. The side wall has an installation groove. The connecting part is located in the installation groove. The first adsorption part is attached to the connecting part, and the first adsorption part covers the opening of the receiving hole of the snap-fitting part. The connecting part is used to seal and connect the first adsorption part and the snap-fitting part. The first adsorption part is used to adsorb foreign matter on the lens of the projection light machine to protect the lens of the projection light machine. The protective component provided in the embodiment of the present application can provide waterproof, fog-proof and dust-proof protection for the lens of the projection light machine, which helps to improve the projection quality of the projection light machine.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and in particular to a protective component and a projection device. Background Art

[0002] A projector is generally composed of a projection imaging system and an optical magnification system. The projection signal is processed by the imaging technology of the projector to become an image signal, and then it can be projected and displayed on the screen through the amplification of the optical system. The optical machine is the core display module of the projector, which is used to generate images and project the images onto the display screen through its own optical imaging system. The current projection optical machine dustproof device uses foam to press the optical machine lens and the transparent glass panel to achieve a dustproof effect. Some use a cylindrical or other shaped straight optical machine lens and the transparent glass panel to achieve a dustproof effect. However, these designs are not easy to get out of water vapor after sealing, and it is easy to cause fogging on the lens, affecting the optical machine projection effect. Summary of the invention

[0003] The embodiments of the present invention provide a protective component and a projection device. The protective component can provide waterproof, fog-proof and dust-proof protection for the lens of a projection optical machine, thereby improving the projection effect of the projection optical machine.

[0004] An embodiment of the present invention provides a protective component for protecting the lens of a projection light machine, the protective component includes a snap-fitting portion, a connecting portion and a first adsorption portion, the snap-fitting portion has a receiving hole, the snap-fitting portion is used to snap-fit ​​on the support of the lens of the projection light machine so that the lens of the projection light machine is received in the receiving hole, the snap-fitting portion has a side wall, the side wall has an installation groove, the connecting portion is located in the installation groove, the first adsorption portion is attached to the connecting portion, and the first adsorption portion covers the opening of the receiving hole of the snap-fitting portion, the connecting portion is used to seal and connect the first adsorption portion and the snap-fitting portion, the first adsorption portion is used to adsorb foreign matter on the lens of the projection light machine to protect the lens of the projection light machine.

[0005] The protective component provided by the embodiment of the present invention seals and connects the first adsorption portion and the snap-fit ​​portion through the connecting portion. When the snap-fit ​​portion is snapped onto the support of the lens of the projection light machine, the lens of the projection light machine is accommodated in the accommodation hole of the snap-fit ​​portion. At this time, the first adsorption portion is arranged adjacent to the lens of the projection light machine. The first adsorption portion can adsorb foreign matter on the lens of the projection light machine, thereby providing waterproof, fog-proof and dust-proof protection for the lens of the projection light machine, which helps to improve the projection quality of the projection light machine.

[0006] An embodiment of the present invention also provides a projection device, which includes a projection light machine and a protective component provided in any of the above embodiments, wherein the protective component is installed on the projection light machine, the projection light machine has a support and a lens installed on the support, and the protective component is mounted on the support to protect the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 It is a schematic diagram of the assembly structure of the protection component provided by an embodiment of the present invention installed on a projection optical machine.

[0009] Figure 2 It is a schematic diagram of the explosion structure in which the protection component provided by an embodiment of the present invention is installed on a projection optical machine.

[0010] Figure 3 The structure diagram of the cross-sectional view of the protective assembly provided by the embodiment of the present invention installed on the projection optical machine is shown in FIG. Figure 1 .

[0011] Figure 4 The structure diagram of the cross-sectional view of the protective assembly provided by the embodiment of the present invention installed on the projection optical machine is shown in FIG. Figure 2 .

[0012] Figure 5 The structure diagram of the cross-sectional view of the protective assembly provided by the embodiment of the present invention installed on the projection optical machine is shown in FIG. Figure 3 .

[0013] Figure 6 is a schematic diagram of a cross-sectional view of a protective component provided by an embodiment of the present invention Figure 1 .

[0014] Figure 7 yes Figure 6 A schematic structural diagram of a partial enlarged view corresponding to area M of the protective component is provided.

[0015] Figure 8 is a schematic diagram of a cross-sectional view of a protective component provided by an embodiment of the present invention Figure 2 .

[0016] Fig. 9 yes Figure 8 A structural schematic diagram of a local enlarged view corresponding to area N of the protective component is provided.

[0017] Fig.10Schematic diagram of a cross-sectional view of a buckling portion of a protective assembly provided by an embodiment of the present invention Figure 1 .

[0018] Fig.11 Schematic diagram of a cross-sectional view of a buckling portion of a protective assembly provided by an embodiment of the present invention Figure 2 .

[0019] Fig.12 is a schematic diagram of a cross-sectional view of a protective component provided by an embodiment of the present invention Figure 3 .

[0020] Fig.13 yes Fig.12 A schematic structural diagram of a partial enlarged view corresponding to area P of the protective component is provided.

[0021] Fig.14 The structure diagram of the cross-sectional view of the protective assembly provided by the embodiment of the present invention installed on the projection optical machine is shown in FIG. Figure 4 .

[0022] Fig.15 It is a schematic diagram of the structure of a projection device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The description of the illustrative embodiments according to the principles of the present invention is intended to be read in conjunction with the accompanying drawings, which will be considered as part of the entire written specification. In the description of the disclosed embodiments of the present invention, any reference to direction or orientation is intended only for ease of description and is not intended to limit the scope of the present invention in any way. Related terms (such as "front", "back", "upper", "lower", "side", "outer", "inner", "middle", "inner", "external", "lower", "upper", "horizontal", "vertical", "above", "below", "upward", "downward", "top" and "bottom") and their derivatives (for example, "horizontally", "downward", "upward", etc.) should be interpreted as the orientation described below or shown in the drawings under discussion. These related terms are only for convenience of description and cannot require that the device be constructed or operated in a specific orientation unless explicitly stated. Therefore, the present invention should not be strictly limited to exemplary embodiments that illustrate some possible non-limiting combinations of features that may exist alone or in other combinations of features; the scope of protection of the present invention is defined by the attached claims.

[0025] As currently contemplated, this disclosure describes the best mode or practice of the invention. The invention is not intended to be understood in a limiting sense, but rather to provide examples of the invention for illustrative purposes only in conjunction with the accompanying drawings to inform those skilled in the art of the advantages and configurations of the invention. In the various views of the drawings, the same reference numerals refer to the same or similar parts.

[0026] Please also read Figure 1 , Figure 2 and Figure 3 The protective assembly 10 provided in the embodiment of the present application is used to protect the lens 21 of the projection light machine 20. The protective assembly 10 includes a buckling portion 100, a connecting portion 200 and a first adsorption portion 300. The buckling portion 100 has a receiving hole 100a. The buckling portion 100 is used to buckle on the support 22 of the lens 21 of the projection light machine 20 so that the lens 21 of the projection light machine 20 is received in the receiving hole 100a. The buckling portion 100 has a side wall 100b. The side wall 100b A mounting groove 100c is provided on the top, the connecting part 200 is located in the mounting groove 100c, the first adsorption part 300 is attached to the connecting part 200, and the first adsorption part 300 covers the opening of the receiving hole 100a of the buckling part 100, the connecting part 200 is used to seal the first adsorption part 300 and the buckling part 100, and the first adsorption part 300 is used to adsorb foreign matter on the lens 21 of the projection light engine 20 to protect the lens 21 of the projection light engine 20.

[0027] The optical projection machine 20 is an instrument that can project an optical image. The optical image generated by the optical device inside the optical projection machine 20 is projected onto the screen via the lens 21 of the optical projection machine 20, thereby displaying the optical image. Dust is easily accumulated on the lens 21 of the optical projection machine 20, and the water vapor and mist on the lens 21 will affect the projection effect of the optical projection machine 20. Therefore, it is necessary to clean the foreign matter (including water vapor, mist and dust, etc.) on the lens 21 of the optical projection machine 20 to improve the projection quality of the optical projection machine 20.

[0028] The buckle part 100 is a cylindrical structure with a receiving hole 100a. The buckle part 100 has a first end 101 and a second end 102 opposite to each other. The first end 101 is used to buckle on the lens 21 of the projection optical machine 20, and the second end 102 is used to install the connection part 200 and the first adsorption part 300. The side wall 100b of the second end 102 has a mounting groove 100c. The connection part 200 is located in the mounting groove 100c. The connection part 200 has an adhesive function and can bond the first adsorption part 300 to the buckle part 100. The first adsorption part 300 covers the opening of the receiving hole 100a of the buckle part 100 and forms a sealed connection with the buckle part 100. The connection part 200 can be waterproof silica gel or a sealing ring with adhesive properties, and can connect the first adsorption part 300 to the buckle part 100. The first adsorption part 300 is a dense film anti-fog lens, specifically, a water and fog absorbent sheet. When the lens 21 of the projection light machine 20 is installed on the protection component 10, the lens 21 is close to the first adsorption part 300, and the first adsorption part 300 can absorb foreign matter on the lens 21, including water vapor, fog, and dust, etc., which helps to improve the projection quality of the projection light machine 20. The first adsorption part 300 can be a transparent lens or a non-transparent lens.

[0029] The protective assembly 10 provided in the embodiment of the present invention is used to protect the lens 21 of the projection light machine 20. The protective assembly 10 includes a buckling portion 100, a connecting portion 200 and a first adsorption portion 300. The buckling portion 100 has a receiving hole 100a. The buckling portion 100 is used to buckle on the support 22 of the lens 21 of the projection light machine 20 so that the lens 21 of the projection light machine 20 is received in the receiving hole 100a. The buckling portion 100 has a side wall 100b. It has an installation groove 100c, the connecting part 200 is located in the installation groove 100c, the first adsorption part 300 is attached to the connecting part 200, and the first adsorption part 300 covers the opening of the receiving hole 100a of the buckling part 100, the connecting part 200 is used to seal the first adsorption part 300 and the buckling part 100, and the first adsorption part 300 is used to adsorb foreign matter on the lens 21 of the projection light engine 20 to protect the lens 21 of the projection light engine 20. The first adsorption portion 300 and the snap-fit ​​portion 100 are sealed and connected via the connecting portion 200. When the snap-fit ​​portion 100 is snap-fitted onto the support 22 of the lens 21 of the projector 20, the lens 21 of the projector 20 is received in the receiving hole 100a of the snap-fit ​​portion 100. At this time, the first adsorption portion 300 is disposed adjacent to the lens 21 of the projector 20. The first adsorption portion 300 can adsorb foreign matter on the lens 21 of the projector 20, thereby providing waterproof, fog-proof and dust-proof protection for the lens 21 of the projector 20, which helps to improve the projection quality of the projector 20.

[0030] Please continue reading Figure 4 The buckling portion 100 includes a first part 110 and a second part 120 connected to each other, the first part 110 has a first through hole 110a, the second part 120 has a second through hole 120a, the first through hole 110a and the second through hole 120a are at least partially arranged opposite to each other, the first through hole 110a and the second through hole 120a constitute the receiving hole 100a, the first through hole 110a is used to receive the support 22 of the lens 21 of the projection light machine 20, and the second part 120 has the mounting groove 100c on the side wall 100b away from the first part 110.

[0031] In one embodiment, the sizes of the first through hole 110a and the second through hole 120a are consistent, and the first through hole 110a and the second through hole 120a are arranged opposite to each other. The first through hole 110a and the second through hole 120a constitute the receiving hole 100a. The first through hole 110a is used to receive the lens 21 of the projection light machine 20. The side wall 100b of the second part 120 away from the first part 110 has a mounting groove 100c, and the mounting groove 100c is used to install the connecting part 200. The connecting part 200 has an adhesive property, and the connecting part 200 is connected between the buckling part 100 and the first adsorption part 300 to fix the first adsorption part 300 on the buckling part 100. The first adsorption part 300 and the buckling part 100 are sealed, so as to prevent external water vapor, fog and dust from entering the receiving hole 100a, and avoid contamination of the lens 21 of the projection light machine 20.

[0032] In one embodiment, the first part 110 and the second part 120 are integrated into one structure. That is, the first part 110 and the second part 120 are formed together in the same processing step, which helps to increase the structural strength of the buckle part 100 and helps to improve the sealing performance of the protection component 10. In addition, it also helps to improve the appearance consistency of the protection component 10.

[0033] In another embodiment, the first part 110 and the second part 120 are formed independently, that is, the first part 110 and the second part 120 are independent structures, and the first part 110 and the second part 120 are sealed together. The first part 110 and the second part 120 can be connected by colloid, welding, or other sealing connection methods.

[0034] Please continue reading Figure 5 The second part 120 also has a limiting groove 120b on the side wall 100b away from the first part 110, and the limiting groove 120b is used to accommodate the first adsorption part 300, and the radial dimension of the first adsorption part 300 is greater than the radial dimension of the connecting part 200.

[0035] Specifically, the position of the limiting groove 120b is set adjacent to the edge of the snap-fitting portion 100 relative to the position of the installation groove 100c, the limiting groove 120b is used to accommodate the first adsorption portion 300, the installation groove 100c is used to accommodate the connecting portion 200, the first adsorption portion 300 is snap-fitted on the snap-fitting portion 100, and the radial dimension of the first adsorption portion 300 is greater than the radial dimension of the connecting portion 200.

[0036] Further, the connecting portion 200 is annular, and has an inner ring and an outer ring, the inner ring and the outer ring are held against the side wall 100b of the mounting groove 100c, and the first adsorption portion 300 is attached to the connecting portion 200 and the buckling portion 100. The first adsorption portion 300 is also annular, and the first adsorption portion 300 and the limiting groove 120b are interference fit, so that the first adsorption portion 300 and the buckling portion 100 are sealed.

[0037] Please continue reading Figure 6 and Figure 7 A protective foam 350 is arranged between the first adsorption part 300 and the second part 120, and the protective foam 350 is at least partially located in the limiting groove 120b. The protective component 10 also includes a sealing colloid 360, and the sealing colloid 360 is at least partially located in the limiting groove 120b, and the sealing colloid 360 covers the protective foam 350. The sealing colloid 360 is used to fix the protective foam 350 between the first adsorption part 300 and the second part 120. The protective foam 350 is used to absorb water vapor, and the protective foam 350 is used to provide shock-absorbing protection for the protective component 10.

[0038] Specifically, the protective foam 350 is arranged at the matching position of the first adsorption part 300 and the second part 120, the sealing colloid 360 covers the protective foam 350, the sealing colloid 360 is located on the side of the second part 120 away from the first part 110, and the sealing colloid 360 is partially located in the limiting groove 120b. The sealing colloid 360 is used to form a sealed connection between the first adsorption part 300 and the second part 120. When the lens 21 of the projection optical machine 20 is accommodated in the first part 110, the protective foam 350 is used to absorb the water vapor on the lens 21 to dry the lens 21. The protective foam 350 also has a certain elasticity, which can absorb the vibration on the protective component 10, so as to form a shock-absorbing protection for the protective component 10.

[0039] Please continue reading Figure 8 and Fig. 9In another embodiment, a plurality of adsorption particles 370 are arranged in the sealing colloid 360, and the arrangement density of the adsorption particles 370 gradually decreases from the side of the first part 110 toward the side of the second part 120, that is, the adsorption particles 370 in the sealing colloid 360 are arranged more densely on the side close to the first part 110, and the adsorption particles 370 in the sealing colloid 360 are arranged more sparsely on the side close to the second part 120. The adsorption particles 370 have the function of absorbing water vapor, fog and dust, and are arranged more densely on the side close to the first part 110. When the lens 21 of the projection light machine 20 is accommodated in the first part 110, foreign matter on the lens 21 can be better adsorbed, thereby improving the projection quality of the projection light machine 20.

[0040] Please continue reading Fig.10 The radial dimension of the second part 120 is greater than the radial dimension of the first part 110. The second part 120 has a first connecting surface 121 and a second connecting surface 122 connected to each other. The first connecting surface 121 is connected to the first part 110, and the second connecting surface 122 is located on the circumferential side of the first part 110. The second connecting surface 122 is a conical surface, and the radial dimension of the second connecting surface 122 gradually increases from one side of the first part 110 toward the side adjacent to the second part 120.

[0041] Specifically, the second part 120 is protruded from the peripheral side of the first part 110, and the second part 120 has a first connecting surface 121 and a second connecting surface 122 connected to each other, the first connecting surface 121 is connected to the first part 110, and the second connecting surface 122 is relative to the first connecting surface 121 toward the side away from the first part 110, that is, the second connecting surface 122 and the first connecting surface 121 are not located on the same plane, the second connecting surface 122 is a conical surface, and the radial dimension of the second connecting surface 122 gradually increases from one side of the first part 110 toward one side of the second part 120. At this time, the stress distribution when the first part 110 and the second part 120 are connected can be reduced, so that the stress distribution when the first part 110 and the second part 120 are connected is more uniform, thereby increasing the structural strength of the buckle 100.

[0042] Please continue reading Fig.11The second part 120 has an inner wall 120c, and the inner wall 120c is arranged to form the second through hole 120a. The inner wall 120c has a receiving groove 120d. The protective component 10 also includes a second adsorption portion 400, and the second adsorption portion 400 includes a plurality of adsorption members 410 arranged in a circular array. The adsorption members 410 are located in the receiving groove 120d. The second adsorption portion 400 and the first adsorption portion 300 cooperate with each other to adsorb foreign matter on the lens 21 of the projection light machine 20.

[0043] Specifically, the receiving groove 120d is an annular groove, and a plurality of adsorbents 410 are arranged in an annular array in the receiving groove 120d. The sizes of the plurality of adsorbents 410 are all consistent, and the spacing between two adjacent adsorbents 410 is consistent, so that foreign matter on the lens 21 can be adsorbed more evenly, improving the projection quality of the projection light machine 20. Among them, the adsorbent 410 can be a desiccant, which is used to absorb water vapor, mist, etc. on the lens 21, and also helps to remove dust on the lens 21.

[0044] Furthermore, a sealing colloid 360 is provided between two adjacent adsorbents 410, and the sealing colloid 360 is used to fix the adjacent adsorbents 410 to prevent the adsorbents 410 from falling off the snap-fitting portion 100. On the other hand, the sealing colloid 360 is also used to form a sealed connection between the adsorbent 410 and the snap-fitting portion 100, thereby preventing external water vapor, mist, dust, etc. from entering the snap-fitting portion 100 and interfering with the lens 21 of the projection optical machine 20.

[0045] Please continue reading Fig.12 and Fig.13 The second part 120 has a first surface 120d facing away from the first part 110, and the first adsorption portion 300 has a second surface 300a facing away from the first part 110. The second surface 300a is arranged adjacent to the first part 110 relative to the first surface 120d.

[0046] Specifically, the second portion 120 partially protrudes from the surface of the first adsorption portion 300, so as to protect the first adsorption portion 300 and prevent the first adsorption portion 300 from being worn. The second portion 120 has a first surface 120d away from the first portion 110, and the first adsorption portion 300 has a second surface 300a away from the first portion 110. The second surface 300a is arranged adjacent to the first portion 110 relative to the first surface 120d, that is, the distance between the second surface 300a and the first portion 110 is closer, and the distance between the first surface 120d and the first portion 110 is farther. At this time, the first adsorption portion 300 is partially accommodated in the second portion 120, and the second portion 120 can form physical protection for the first adsorption portion 300 and prevent the first adsorption portion 300 from being worn.

[0047] In one embodiment, the second surface 300a is a plane, which prevents the second surface 300a from protruding from one side of the second portion 120, thereby helping to protect the second surface 300a. In another embodiment, the second surface 300a is an arc-shaped surface, and the center of curvature of the second surface 300a faces the side adjacent to the first portion 110. In this case, the second surface 300a can be better accommodated in the second portion 120 to prevent the second surface 300a from being worn.

[0048] Please continue reading Fig.14 The first adsorption portion 300 has a third surface 300b and a fourth surface 300c relative to each other, the third surface 300b is arranged adjacent to the first part 110 relative to the fourth surface 300c, the third surface 300b is arc-shaped, and the center of curvature of the third surface 300b is toward the side away from the fourth surface 300c, and the third surface 300b forms an avoidance space 111 on the side adjacent to the first part 110.

[0049] Specifically, the third surface 300b is recessed toward a side adjacent to the fourth surface 300c, so that an avoidance space 111 can be formed on a side adjacent to the first part 110. When the lens 21 of the projection light engine 20 is accommodated in the first part 110, the avoidance space 111 is used to form an avoidance for the lens 21 of the projection light engine 20. On the one hand, it can prevent the first adsorption portion 300 from causing wear to the lens 21 of the projection light engine 20. On the other hand, it can increase the area of ​​the first adsorption portion 300 adjacent to the lens 21 of the projection light engine 20, so that there can be a larger adsorption area for adsorbing foreign matter on the lens 21, thereby improving the effect of handling foreign matter on the lens 21.

[0050] Please continue reading Fig.15The embodiment of the present application also provides a projection device 1, which includes a projection light machine 20 and a protective component 10 provided in any of the above embodiments, wherein the protective component 10 is installed on the projection light machine 20, and the projection light machine 20 has a support 22 and a lens 21 installed on the support 22, and the protective component 10 is sleeved on the support 22 to protect the lens 21.

[0051] The protective component 10 and the projection light machine 20 are detachably connected. The protective component 10 covers the lens 21 of the projection light machine 20 to protect the lens 21 of the projection light machine 20 from foreign matter. The foreign matter may be water vapor, mist, dust, etc.

[0052] Specifically, in one embodiment, the outer side of the support 22 has an external thread, and the inner side of the buckle portion 100 has an internal thread, and the external thread and the internal thread are matched to sleeve the buckle portion 100 on the support 22. It can be understood that in other embodiments, the support 22 and the buckle portion 100 can also be detachably connected in other ways, such as snap connection, latch connection, screw connection, etc.

[0053] The projection device 1 provided in the embodiment of the present invention comprises a protection component 10 and a projection light machine 20, wherein the protection component 10 is used to protect the lens 21 of the projection light machine 20, and the protection component 10 comprises a buckling portion 100, a connecting portion 200 and a first adsorption portion 300, wherein the buckling portion 100 has a receiving hole 100a, and the buckling portion 100 is used to buckle on the support 22 of the lens 21 of the projection light machine 20 so that the lens 21 of the projection light machine 20 is received in the receiving hole 100a, and the buckling portion 100 has a side wall 100 b, the side wall 100b has an installation groove 100c, the connecting part 200 is located in the installation groove 100c, the first adsorption part 300 is attached to the connecting part 200, and the first adsorption part 300 covers the opening of the receiving hole 100a of the buckling part 100, the connecting part 200 is used to seal the first adsorption part 300 and the buckling part 100, and the first adsorption part 300 is used to adsorb foreign matter on the lens 21 of the projection light engine 20 to protect the lens 21 of the projection light engine 20. The first adsorption portion 300 and the snap-fit ​​portion 100 are sealed and connected via the connecting portion 200. When the snap-fit ​​portion 100 is snap-fitted onto the support 22 of the lens 21 of the projection light engine 20, the lens 21 of the projection light engine 20 is received in the receiving hole 100a of the snap-fit ​​portion 100. At this time, the first adsorption portion 300 is disposed adjacent to the lens 21 of the projection light engine 20. The first adsorption portion 300 can adsorb foreign matter on the lens 21 of the projection light engine 20, thereby providing waterproof, fog-proof and dust-proof protection for the lens 21 of the projection light engine 20, which helps to improve the projection quality of the projection device 1.

[0054] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A protective component for protecting the lens of a projection optical machine, characterized in that: The protection component includes a buckling part, a connecting part and a first adsorption part, the buckling part has a receiving hole, the buckling part is used to buckle on the support of the lens of the projection light machine so that the lens of the projection light machine is received in the receiving hole, the buckling part has a side wall, the side wall has a mounting groove, the connecting part is located in the mounting groove, the first adsorption part is attached to the connecting part, and the first adsorption part covers the opening of the receiving hole of the buckling part, the connecting part is used to seal the first adsorption part and the buckling part, and the first adsorption part is used to adsorb foreign matter on the lens of the projection light machine to protect the lens of the projection light machine; The snap-fitting portion includes a first part and a second part that are connected, the first part having a first through hole, the second part having a second through hole, the first through hole and the second through hole being at least partially arranged opposite to each other, the first through hole and the second through hole constituting the receiving hole, the first through hole being used to receive the support of the lens of the projection optical machine, the second part having the mounting groove on the side wall facing away from the first part; the second part also having a limiting groove on the side wall facing away from the first part, the limiting groove being used to receive the first adsorption portion, the radial dimension of the first adsorption portion being greater than the radial dimension of the connecting portion, and the first adsorption portion being a dense film-coated anti-fog lens.

2. The protection assembly according to claim 1, characterized in that: A protective foam is arranged between the first adsorption part and the second part, and the protective foam is at least partially located in the limiting groove. The protective component also includes a sealing colloid, and the sealing colloid is at least partially located in the limiting groove. The sealing colloid covers the protective foam, and the sealing colloid is used to fix the protective foam between the first adsorption part and the second part. The protective foam is used to absorb water vapor, and the protective foam is used to provide shock-absorbing protection for the protective component.

3. The protection assembly according to claim 1 or 2, characterized in that: The radial dimension of the second part is greater than the radial dimension of the first part. The second part has a first connecting surface and a second connecting surface that are connected. The first connecting surface is connected to the first part, and the second connecting surface is located on the circumferential side of the first part. The second connecting surface is a conical surface, and the radial dimension of the second connecting surface gradually increases from one side of the first part toward a side adjacent to the second part.

4. The protection assembly according to claim 1, characterized in that: The second part has an inner wall, which is arranged to form the second through hole, and the inner wall has a receiving groove. The protective component also includes a second adsorption portion, and the second adsorption portion includes a plurality of adsorption parts arranged in a circular array. The adsorption parts are located in the receiving groove. The second adsorption portion and the first adsorption portion cooperate with each other to adsorb foreign matter on the lens of the projection light machine.

5. The protection assembly according to claim 1, characterized in that: The second portion has a first surface facing away from the first portion, the first adsorption portion has a second surface facing away from the first portion, and the second surface is disposed adjacent to the first portion relative to the first surface.

6. The protection assembly according to claim 1, characterized in that: The first adsorption portion has a third surface and a fourth surface relative to each other, the third surface is arranged adjacent to the first part relative to the fourth surface, the third surface is arc-shaped, the center of curvature of the third surface is toward the side away from the fourth surface, and the third surface forms an avoidance space on the side adjacent to the first part.

7. A projection device, characterized in that: The projection device includes a projection light machine and a protective component as described in any one of claims 1 to 6, wherein the protective component is installed on the projection light machine, the projection light machine has a support and a lens installed on the support, and the protective component is mounted on the support to protect the lens.

8. The projection device according to claim 7, characterized in that: The outer side of the support is provided with an external thread, and the inner side of the buckling portion is provided with an internal thread. The external thread and the internal thread are matched to form a sleeve of the buckling portion on the support.

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