Dustproof structure of projector lens

Abstract

The utility model relates to the technical field of dust prevention of projector lenses, in particular to a dust prevention structure of a projector lens. The mounting part is arranged on a projector shell, an opening is formed in the mounting part, and the mounting part and the projector shell are encircled to form a clamping groove; and a mirror cover is further included, a clamping piece is arranged on the mirror cover, and the mirror cover rotates relative to the mounting piece, so that the clamping piece is embedded into the clamping groove. In addition, a positioning glass bead and an avoiding channel are arranged in the mounting groove, so that accurate alignment of the mirror cover is ensured. The effects of effectively preventing dust from entering the projector lens area, prolonging the service life of the projector and improving the technical reliability are achieved.

Description

Technical Field

[0001] This application relates to the field of dustproof technology for projector lenses, and in particular to a dustproof structure for a projector lens. Background Technology

[0002] Projectors, as common display devices, are widely used in education, business, and entertainment. To ensure image quality, projector lenses need to be kept clean to avoid the effects of dust and other impurities. However, due to the complexity of the usage environment, projector lenses are prone to dust accumulation, which not only affects image clarity but may also damage the lens surface. Therefore, designing an effective dustproof structure is of great significance for improving the reliability and lifespan of projectors.

[0003] Currently, the industry typically employs various methods to prevent dust from entering projector lenses. One common method is to cover the lens with a transparent protective cover. This method is simple and easy to implement, but with frequent use, the cover is prone to falling off or shifting, resulting in poor dust protection. Another method is to use a rubber sealing ring around the lens, relying on the tight fit of the elastic material to block dust. However, this structure is prone to aging after long-term use, losing its sealing performance. In addition, some projectors use automatic cleaning devices that use motor-driven brushes or airflow to remove dust from the lens, but this increases the complexity and cost of the equipment.

[0004] While the existing dustproof measures mentioned above offer some protection, they also have significant shortcomings. For example, the transparent protective cover is prone to detachment, the rubber sealing ring is susceptible to aging, and automatic cleaning devices increase the complexity and cost of the equipment. These issues not only affect the user experience but also limit the projector's application range in various environments. Therefore, there is an urgent need for a more reliable dustproof structure that can effectively prevent dust from entering the lens area without increasing the complexity of the equipment. Utility Model Content

[0005] The purpose of this application is to provide a dustproof structure for a projector lens.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a dustproof structure for a projector lens, including a mounting member disposed on a projector housing, the mounting member having an opening, the mounting member and the projector housing forming a snap-fit ​​groove; and a lens cover having a snap-fit ​​member disposed on the lens cover, the opening being used to avoid the snap-fit ​​member, and the snap-fit ​​member being fitted into the snap-fit ​​groove by rotating the lens cover relative to the mounting member.

[0007] By adopting the above technical solution, dust and other impurities can be effectively prevented from entering the projector, while ensuring a tight fit between the lens cover and the mounting components, thus improving the dustproof effect. By setting up the mounting components and lens cover, and utilizing the cooperation of the snap-fit ​​groove and snap-fit ​​parts, the lens cover can be rotated relative to the mounting components, allowing the lens cover to be easily opened and closed while ensuring a tight seal.

[0008] Optionally, the projector housing has a recessed mounting groove, and the mounting component is fitted into the mounting groove.

[0009] By adopting the above technical solution, the mounting components can be stably fixed inside the projector housing, preventing them from loosening due to external vibrations or impacts, thus ensuring the reliability and stability of the dustproof structure. At the same time, this design simplifies the installation process and improves production efficiency. The mounting components and lens cover can be fitted into the mounting groove, keeping the projector's appearance flat and significantly improving its aesthetics.

[0010] Optionally, the bottom of the mounting groove is hollow and has a mounting hole, and the mounting component is provided with a positioning pin at the position corresponding to the mounting hole.

[0011] By adopting the above technical solution, a hollow mounting slot is formed at the bottom to create mounting holes. Positioning pins are provided on the mounting component at positions corresponding to these mounting holes, enabling precise positioning between the mounting component and the projector housing. This ensures the mounting component is stably fixed within the mounting slot, improving the overall reliability of the dustproof structure. Simultaneously, the positioning pin design simplifies the assembly process and improves production efficiency.

[0012] Optionally, the mounting holes are provided in multiple locations.

[0013] By adopting the above technical solution, multiple mounting holes are provided, which can effectively improve the connection stability between the mounting component and the projector housing, prevent loosening or falling off due to single-point force, and thus enhance the reliability and service life of the entire dustproof structure.

[0014] Optionally, the mounting groove bottom ring is provided with a guide surface at the mounting hole.

[0015] By adopting the above technical solution, the mounting components can be more smoothly embedded into the mounting holes, improving assembly efficiency and reducing the risk of damage due to improper assembly. The guide surface design also ensures precise alignment between the mounting components and the mounting groove, further enhancing the overall stability and reliability of the dustproof structure.

[0016] Optionally, the mounting groove is provided with a positioning glass bead, the mounting component is provided with a clearance channel for avoiding the positioning glass bead, and the mirror cover is provided with a positioning groove.

[0017] By adopting the above technical solution, positioning glass beads are set in the mounting groove, the mounting component is provided with a clearance channel for avoiding the positioning glass beads, and the lens cover is provided with a positioning groove, which can effectively improve the assembly accuracy between the lens cover and the mounting component, ensure that the lens cover and the mounting component fit tightly, and thus enhance the dustproof effect.

[0018] Optionally, the positioning glass beads are provided in a plurality of units.

[0019] By adopting the above technical solution, a number of positioning glass beads are provided, which further improves the stability between the lens cover and the mounting parts, avoids the lens cover from loosening due to vibration or impact, and ensures the reliability and durability of the dustproof structure.

[0020] Optionally, both the opening and the snap-fit ​​member are provided in multiple ways.

[0021] By adopting the above technical solution, setting multiple openings and multiple snap-fit ​​components can ensure multi-point fixation between the lens cover and the mounting component, improve the stability and sealing of the lens cover, effectively prevent dust and other impurities from entering the projector, thereby extending the projector's service life and maintaining good optical performance.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The snap-fit ​​between the lens cap and the mounting piece ensures a secure connection of the dustproof structure, effectively preventing dust from entering the lens area and improving the dustproof effect;

[0024] 2. The rotatable design of the mirror cover relative to the mounting parts makes the dustproof structure more flexible and convenient during use, less prone to falling off, and improves the user experience;

[0025] 3. The design of the mounting components fitting into the projector housing simplifies the installation process of the dustproof structure, reduces the complexity of the equipment, and lowers manufacturing and maintenance costs. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of a dustproof structure for a projector lens;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a structural diagram of the mounting components;

[0029] Figure 4 This is a structural diagram of the mounting slot;

[0030] Figure 5 This is a schematic diagram of the mirror cover.

[0031] Figure Labels

[0032] 1. Projector housing; 2. Mounting component; 3. Opening; 4. Snap-fit ​​groove; 5. Mirror cover; 6. Snap-fit ​​component; 7. Mounting groove; 8. Mounting hole; 9. Positioning pin; 10. Guide surface; 11. Positioning bead; 12. Clearance channel; 13. Positioning groove. Detailed Implementation

[0033] The present application is further described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] In this embodiment, refer to Figure 1-3 A dustproof structure for a projector lens includes a mounting member 2 disposed on a projector housing 1, the mounting member 2 having an opening 3, and the mounting member 2 and the projector housing 1 forming a snap-fit ​​groove 4; it also includes a lens cover 5, the lens cover 5 having a snap-fit ​​member 6, the opening 3 being used to avoid the snap-fit ​​member 6, and by rotating the lens cover 5 relative to the mounting member 2, the snap-fit ​​member 6 is fitted into the snap-fit ​​groove 4, thereby effectively preventing dust from entering the lens area.

[0036] Specifically, refer to Figure 3-5 The mounting component 2 can be made of metal, such as aluminum alloy or stainless steel, to enhance its corrosion resistance and strength. The mounting component 2 is also provided with multiple openings 3, which are used to avoid the snap-fit ​​parts 6 on the lens cover 5, so that the lens cover 5 can be easily inserted into the snap-fit ​​groove 4 by rotation.

[0037] Reference Figure 3 The snap-fit ​​groove 4 is formed by the mounting part 2 and the projector housing 1, and has a certain depth and width to ensure that the snap-fit ​​part 6 can be fully embedded. The inside of the snap-fit ​​groove 4 can be coated with a lubricant to reduce the friction when the lens cover 5 rotates and extend its service life. The edges of the snap-fit ​​groove 4 can be designed with rounded corners to prevent sharp parts from scratching the lens cover 5 or the snap-fit ​​part 6.

[0038] Reference Figure 5 The lens cover 5 includes a cover plate and snap-fit ​​parts 6. The cover plate can be made of a transparent material, such as acrylic or glass, to ensure light transmittance and aesthetics. The snap-fit ​​parts 6 can be made of plastic or metal, such as nylon or stainless steel, providing good wear resistance and toughness. The number of snap-fit ​​parts 6 can be set according to actual needs, and they are evenly distributed along the edge of the lens cover 5. The snap-fit ​​parts 6 can be designed in a hook or protrusion shape to facilitate engagement with the snap-fit ​​grooves 4.

[0039] Multiple openings 3 and matching snap-fit ​​pieces 6 are provided to ensure that the lens cap 5 can be smoothly inserted into the snap-fit ​​groove 4 at any position. The shapes of the openings 3 and snap-fit ​​pieces 6 can be designed as circles, squares, or other geometric shapes to adapt to different installation requirements. The edges of the openings 3 can be designed as bevels to facilitate quick alignment and insertion of the snap-fit ​​pieces 6.

[0040] The implementation principle of this embodiment is as follows: by setting the mounting part 2 and the snap-fit ​​groove 4 on the projector housing 1, and setting the snap-fit ​​part 6 on the lens cover 5, the quick installation and removal of the lens cover 5 is achieved. The transparent design of the lens cover 5 ensures light transmittance and allows users to easily check the cleanliness of the lens at any time. The cooperative design of the snap-fit ​​part 6 and the snap-fit ​​groove 4 ensures the reliability of the dustproof structure and effectively prevents dust from entering the lens area. The entire structure is simple and compact, requiring no additional power unit, thus reducing the complexity and cost of the equipment.

[0041] Example 2

[0042] Reference Figure 3-4 The difference between this embodiment and the previous embodiment is that: a mounting groove 7 is formed in the recess of the projector housing 1, and the mounting component 2 is fitted into the mounting groove 7. The depth and width of the mounting groove 7 match the mounting component 2 combined with the lens cover 5, ensuring that the mounting component 2 can be firmly fixed to the projector housing 1. The edges of the mounting groove 7 can be designed to be chamfered to facilitate the insertion of the mounting component 2. An adhesive layer can also be applied to the inside of the mounting groove 7 to enhance the fixing effect of the mounting component 2.

[0043] The mounting groove 7 has a hollow bottom forming mounting holes 8. A locating pin 9 is provided on the mounting component 2 at the position corresponding to the mounting hole 8. Multiple mounting holes 8 can be provided, evenly distributed, to ensure the stability of the mounting component 2. The locating pin 9 can be made of metal, such as stainless steel or copper, which has good pressure resistance and durability. The diameter and length of the locating pin 9 can be adjusted according to actual needs to ensure its precise fit with the mounting hole 8.

[0044] The implementation principle of this embodiment is as follows: by setting a mounting groove 7 and a mounting hole 8 inside the projector housing 1, and setting a positioning pin 9 on the mounting component 2, the fixing effect of the mounting component 2 is further enhanced, and the stability of the dustproof structure is improved. The design of the mounting hole 8 and the positioning pin 9 makes the mounting component 2 more precise during installation, reducing the risk of loosening. The entire structure remains simple and compact, requiring no additional power unit, thus reducing the complexity and cost of the equipment.

[0045] Example 3

[0046] Reference Figure 3-5The difference between this embodiment and the previous embodiment is that: a positioning glass bead 11 is provided in the mounting groove 7, a clearance channel 12 for avoiding the positioning glass bead 11 is provided on the mounting component 2, and a positioning groove 13 is provided on the lens cover 5. The positioning glass bead 11 can be made of a high-hardness material, such as ceramic or steel ball, which has good wear resistance and self-lubricating properties. The number of positioning glass beads 11 can be set to multiple, evenly distributed, to ensure that the lens cover 5 can be smoothly embedded into the snap-fit ​​groove 4 during rotation. The shape and size of the positioning groove 13 can also be adjusted according to actual needs to ensure that the lens cover 5 can be firmly fixed in the closed state.

[0047] The number of positioning glass beads 11 can be adjusted according to actual needs, and they are evenly distributed. The diameter and height of the positioning glass beads 11 can be adjusted according to the depth and width of the mounting groove 7 to ensure good fit with the clearance channel 12 and the positioning groove 13.

[0048] The implementation principle of this embodiment is as follows: by setting positioning glass beads 11 in the mounting groove 7, and setting corresponding clearance channels 12 and positioning grooves 13 on the mounting component 2 and the mirror cover 5, the reliability and stability of the dustproof structure are further improved. The design of the positioning glass beads 11 allows the mirror cover 5 to be more stably embedded in the snap-fit ​​groove 4 during rotation. The entire structure remains simple and compact, requiring no additional power unit, thus reducing the complexity and cost of the equipment.

[0049] Example 4

[0050] Reference Figure 4 The difference between this embodiment and the previous embodiment is that a guide surface 10 is provided at the mounting hole 8 of the bottom ring of the mounting groove 7. The guide surface 10 can be designed as conical or arc-shaped to facilitate the accurate insertion of the mounting part 2. The surface of the guide surface 10 can be coated with a lubricant to reduce the friction when the mounting part 2 is inserted and extend its service life. The slope of the guide surface 10 can be adjusted according to actual needs to ensure that the mounting part 2 can be inserted smoothly.

[0051] The implementation principle of this embodiment is as follows: by setting a guide surface 10 at the bottom of the mounting groove 7, the installation accuracy and stability of the mounting component 2 are further improved. The design of the guide surface 10 allows the mounting component 2 to be more accurately aligned with the mounting hole 8 during insertion, reducing the risk of misalignment and tilting. The entire structure remains simple and compact, requiring no additional power unit, thus reducing the complexity and cost of the equipment.

[0052] Example 5

[0053] The difference between this embodiment and the previous embodiment is that an elastic gasket is provided inside the mounting groove 7, and a groove for accommodating the elastic gasket is provided on the mounting component 2. The elastic gasket can be made of rubber or silicone, which has good elasticity and sealing properties. The thickness and width of the elastic gasket can be adjusted according to actual needs to ensure a good fit with the mounting groove 7 and the mounting component 2. The design of the elastic gasket can further improve the sealing effect of the dustproof structure and effectively prevent dust from entering the lens area.

[0054] The implementation principle of this embodiment is as follows: by setting an elastic gasket in the mounting groove 7 and a corresponding groove on the mounting component 2, the sealing effect and stability of the dustproof structure are further improved. The design of the elastic gasket allows the mounting component 2 to fit more tightly against the projector housing 1 during installation, reducing the risk of airflow and dust ingress. The entire structure remains simple and compact, requiring no additional power unit, thus reducing the complexity and cost of the equipment.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dustproof structure for a projector lens, characterized in that, The device includes a mounting component (2) disposed on a projector housing (1), the mounting component (2) having an opening (3), the mounting component (2) and the projector housing (1) together forming a snap-fit ​​groove (4); it also includes a lens cover (5), the lens cover (5) having a snap-fit ​​component (6), the opening (3) being used to avoid the snap-fit ​​component (6), and by rotating the lens cover (5) relative to the mounting component (2), the snap-fit ​​component (6) is fitted into the snap-fit ​​groove (4).

2. The dustproof structure for a projector lens according to claim 1, characterized in that, The projector housing (1) has a recessed mounting groove (7), and the mounting component (2) is fitted into the mounting groove (7).

3. The dustproof structure for a projector lens according to claim 2, characterized in that, The mounting groove (7) has a hollow bottom and a mounting hole (8) is formed therein. The mounting component (2) is provided with a positioning pin (9) corresponding to the mounting hole (8).

4. The dustproof structure for a projector lens according to claim 3, characterized in that, The mounting holes (8) are provided in multiple locations.

5. The dustproof structure for a projector lens according to claim 4, characterized in that, The mounting groove (7) has a guide surface (10) at the mounting hole (8) on the bottom ring of the groove.

6. The dustproof structure for a projector lens according to claim 2, characterized in that, The mounting groove (7) is provided with a positioning glass bead (11), the mounting component (2) is provided with a clearance channel (12) for avoiding the positioning glass bead (11), and the mirror cover (5) is provided with a positioning groove (13).

7. The dustproof structure for a projector lens according to claim 6, characterized in that, The positioning glass beads (11) are provided in several quantities.

8. The dustproof structure for a projector lens according to claim 1, characterized in that, Both the opening (3) and the snap-fit ​​member (6) are provided with multiple openings.

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