Visual equipment with dustproof device

Abstract

The utility model relates to the technical field of visual equipment, and discloses visual equipment with a dustproof device, which comprises a visual equipment body provided with an opening for mounting a lens; the dustproof plate is slidably connected to the opening of the visual equipment body, and the opening of the visual equipment body is covered by the dustproof plate; the elastic piece is connected with the dustproof plate and has elastic force used for driving the dustproof plate to cover the open hole. The lens is installed at the opening of the visual device body, the dustproof plate is provided with a driven part, and the lens makes contact with the driven part in the installation process so that the dustproof plate can overcome the elastic force of the elastic piece to leave the opening. According to the visual equipment provided by the utility model, when the lens needs to be installed, the dustproof plate overcomes the elastic force of the elastic piece to leave the opening by virtue of external force applied by the lens, so that the installation operation of the lens is smoothly completed, and after the lens is disassembled, the elastic piece drives the dustproof plate to slide by virtue of the elastic force of the elastic piece, so that the dustproof plate quickly covers the opening of the visual equipment body. And dust is effectively blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual equipment technical field, concretely relates to a visual equipment with dustproof device. BACKGROUND

[0002] In today's era of rapid development of science and technology, visual equipment occupies a crucial position in many fields. As a kind of technical device that collects visual information with optical devices, and achieves target recognition, image measurement, scene monitoring and other functions through image sensor and special signal processing and analysis system, visual equipment has been widely penetrated into many key industries such as security monitoring, industrial manufacturing, intelligent transportation, medical imaging and so on.

[0003] At present, the dustproof way of most visual equipment lenses is relatively conventional, usually a dust cover is set, and when the lens is disassembled and maintained, the dust cover matched with the lens is disassembled together with the lens. Although this design is convenient for replacing and repairing the lens to a certain extent, it has obvious defects in dust prevention. When the lens is disassembled, the inside of the equipment is directly communicated with the outside environment, and there is no additional protective structure or measure to prevent the entry of dust, particulate matter and other impurities from the outside.

[0004] This defect brings many problems. Once the dust, particulate matter and other impurities invade the inside of the visual equipment and adhere to the surface of the optical element, they will interfere with the normal propagation and focusing of light, causing blurring, distortion and other situations, which seriously affects the accuracy and reliability of the visual equipment to obtain information. Moreover, the long-term accumulation of dust may cause damage to electronic components, resulting in short circuit, poor contact and other faults, which not only shortens the service life of the equipment, but also increases the maintenance cost and equipment downtime, bringing many inconveniences and economic losses to the stable operation of related industries. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a visual equipment with dustproof device to solve the problem that the existing visual equipment lacks effective dustproof protection after disassembling the lens.

[0006] The utility model provides a visual equipment with dustproof device, include: visual equipment body has the opening for installing lens, dustproof board, sliding connection in the opening of visual equipment body, through the dustproof board is used for covering the opening of visual equipment body, elastic piece is connected with the dustproof board, the elastic piece has the elastic force for driving the dustproof board covers the opening, lens, install in the opening of visual equipment body, the dustproof board has the driven part, the lens installation process with the driven part contact, to make the dustproof board overcome the elastic force of elastic piece and leave the opening.

[0007] By the above arrangement, when the lens needs to be installed, the lens contacts the driven part of the dustproof plate during installation, and the dustproof plate is driven away from the opening by the external force of the lens to overcome the elastic force of the elastic member, thereby smoothly completing the installation operation of the lens. At this time, the visual equipment can work normally, and image information can be collected by the lens. When the lens is disassembled, the elastic member is no longer affected by the external force of the lens, and the dustproof plate is driven to slide by the elastic force of the elastic member, so that the dustproof plate quickly covers the opening of the visual equipment body. After the lens is disassembled, the inside of the visual equipment is no longer directly exposed to the outside environment, effectively preventing dust, particulate matter and other impurities from entering the inside of the equipment, avoiding pollution and damage of the impurities to the internal precise optical elements and electronic components of the visual equipment. During the maintenance period of the lens, the inside of the visual equipment is reliably protected from dust, solving the problem of continuous dust prevention after the lens is disassembled.

[0008] Optionally, the dustproof plate has at least two symmetrically arranged plates.

[0009] By the above arrangement, the at least two symmetrically arranged dustproof plates can more comprehensively cover the opening of the visual equipment body. When covering the opening, the dustproof effect is enhanced, and the situation that dust enters due to insufficient local shielding is effectively reduced. Moreover, the symmetric structure makes the force more balanced when the dustproof plate is driven by the elastic force of the elastic member and the external force during lens installation, which helps to ensure the stability of the dustproof plate during sliding and enables it to smoothly open and close.

[0010] Optionally, it further comprises a fixed plate fixedly connected to the visual equipment body, and the dustproof plate is clamped and slid between the fixed plate and the visual equipment body.

[0011] By the above arrangement, the fixed plate provides a stable sliding track and support structure for the dustproof plate. On the one hand, clamping and sliding the dustproof plate between the fixed plate and the dustproof equipment can accurately limit the sliding direction of the dustproof plate, ensuring that the dustproof plate can only move along a specific path, avoiding shaking or deviation during sliding, improving the accuracy and stability of dust prevention, and facilitating the installation and maintenance of the dustproof plate. When the dustproof plate needs to be repaired or replaced, the fixed plate can be removed to easily take out the dustproof plate for related operations, improving the convenience of equipment maintenance.

[0012] Optionally, the fixed plate has a clearance hole for exposing the driven part.

[0013] By the above arrangement, the clearance hole provides space for the interaction between the lens and the driven part of the dustproof plate. It ensures that the lens can smoothly contact the driven part during installation without being hindered by the fixed plate, so that the lens can smoothly push the dustproof plate away from the opening to overcome the elastic force of the elastic member. It ensures the smooth installation of the lens and makes the movement of the dustproof plate more flexible and efficient.

[0014] Optionally, the lens has a driving part, and the driven part of the dustproof plate has an inclined surface for sliding contact with the driving part.

[0015] Through the above arrangement, when the lens is installed, the lens is pushed forward, the driving part slides along the inclined surface, converts the linear motion of the lens into a force to promote the lateral sliding of the dustproof plate, and pushes the dustproof plate to overcome the elastic force of the elastic member with smaller installation force, so that the dustproof plate stably leaves the opening, and the difficulty of lens installation is reduced. The inclined surface matching mode also plays a certain guiding role, so that the dustproof plate is more accurate and stable during movement, and the jamming or deviation is avoided.

[0016] Optionally, the lens has a driving part, and the driven part of the dustproof plate has an inclined surface for sliding contact with the driving part.

[0017] Through the above arrangement, the stability of the lens and the visual equipment body connection is increased. When installing the lens, the lug can be used as a reliable force point, so that the installation of the lens is more accurate and convenient. The driving part can more effectively contact and interact with the driven part of the dustproof plate. Since the lug protrudes outward, the contact angle and position of the driving part and the dustproof plate are more conducive to pushing the dustproof plate to overcome the elastic force of the elastic member, and realizing the stable movement of the dustproof plate.

[0018] Optionally, the lens is detachably connected with the visual equipment body through the lug.

[0019] Through the above arrangement, during daily use, when the lens fails, needs to be cleaned or needs to be upgraded, the user can easily detach the lens from the visual equipment body without complex tools and operation procedures.

[0020] Optionally, the lug is connected with a fastener for connecting with the visual equipment body.

[0021] Through the above arrangement, when the lens is installed, the lens can be tightly fixed on the visual equipment body by tightening the fastener, effectively preventing the lens from loosening and shaking during use, ensuring the position accuracy of the lens, and further improving the stability and accuracy of image acquisition of the visual equipment. Good detachability, when the lens needs to be replaced or maintained, the lens can be easily detached by loosening the fastener, which is simple and convenient to operate, improves the maintenance efficiency of the equipment, and is convenient for subsequent maintenance and upgrading.

[0022] Optionally, the opening of the visual equipment body has a convex ring extending outward along the center line direction of the opening and protruding outward, and the convex ring is adapted to extend into the lens.

[0023] Through the above arrangement, when the lens is installed, the convex ring can provide accurate positioning guidance for the lens, so that the lens is more accurately installed at the opening of the visual equipment body, and the installation efficiency and accuracy are improved. Secondly, the convex ring is closely matched with the inside of the lens, forming an additional dustproof barrier. It further blocks the dust from the opening edge into the inside of the visual equipment, enhances the dustproof effect of the equipment, and protects the internal optical and electronic elements from dust.

[0024] Optionally, the end of the lens has a clamping groove structure for inserting the convex ring.

[0025] Through the above arrangement, the clamping groove can be accurately aligned and inserted into the convex ring, play a good positioning role, ensure that the lens is perfectly connected with the opening of the visual equipment body, and avoid installation deviation. The clamping groove is closely combined with the convex ring, increases the contact area and friction force between the two, so that the lens is firmly fixed on the visual equipment body, effectively prevents the lens from loosening, shaking and other situations during use, and guarantees the stability and reliability of the visual equipment imaging. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiment of the present application or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0027] Figure 1 An explosion diagram of a specific embodiment of the visual equipment with the dustproof device provided by the embodiment of the present application;

[0028] Figure 2 A front view of a specific embodiment of part of the structure of the visual equipment with the dustproof device provided by the embodiment of the present application;

[0029] Figure 3 A perspective view of a specific embodiment of the dustproof plate in the visual equipment with the dustproof device provided by the embodiment of the present application;

[0030] Figure 4 A perspective view of a specific embodiment of the visual equipment with the dustproof device provided by the embodiment of the present application;

[0031] Figure 5 A perspective view of a specific embodiment of the lens in the visual equipment with the dustproof device provided by the embodiment of the present application.

[0032] Explanation of reference signs:

[0033] 1, visual equipment body; 2, dustproof plate; 3, elastic piece; 4, lens; 5, opening; 6, driven part; 7, fixed plate; 8, guide column; 9, avoiding hole; 10, driving part; 11, inclined surface; 12, lug; 13, positioning through hole; 14, fixed block; 15, positioning rod; 16, pull rod; 17, reset elastic piece; 18, convex ring; 19, clamping groove structure. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 5

[0036] As shown in Figure 1 , Figure 2 , a specific embodiment of the visual equipment with a dustproof device provided by the present embodiment includes a visual equipment body 1, a dustproof plate 2, an elastic piece 3 and a lens 4.

[0037] Specifically, the equipment body has an opening 5 for mounting the lens 4; the dustproof plate 2 is slidingly connected at the opening 5 of the visual equipment body 1, and covers the opening 5 of the visual equipment body 1 through the dustproof plate 2; the elastic piece 3 is connected with the dustproof plate 2, and has an elastic force for driving the dustproof plate 2 to cover the opening 5; the lens 4 is mounted at the opening 5 of the visual equipment body 1, and the dustproof plate 2 has a driven part 6, which is in contact with the lens 4 during mounting, so that the dustproof plate 2 overcomes the elastic force of the elastic piece 3 and leaves the opening 5.

[0038] ​In the embodiment, the lens 4 will contact the driven part 6 of the dustproof plate 2 in the process of gradually approaching and being installed to the opening 5 of the visual equipment body 1. As the lens 4 continues to advance, the external force applied by the lens 4 drives the dustproof plate 2 to slide away from the opening 5 position stably and smoothly, and the lens 4 completes the installation operation, and the visual equipment can quickly restore to the normal working state. When the lens 4 needs to be disassembled and maintained, as the lens 4 is gradually removed from the visual equipment body 1, the elastic member 3 no longer bears the external force applied by the lens 4. At this time, the elastic member 3 drives the dustproof plate 2 to slide quickly by the elastic force of the elastic member 3, so that the dustproof plate 2 accurately covers the opening 5 of the visual equipment body 1 in a short time. After the lens 4 is disassembled, the inside of the equipment is no longer directly exposed to the environment full of dust and particulate matter outside. The dust, particulate matter and other impurities outside are effectively blocked outside the equipment, thereby avoiding pollution and damage of the impurities to the internal precise optical elements and electronic components of the visual equipment. Even during the disassembly and maintenance of the lens 4, the inside of the visual equipment can be reliably and durably protected from dust, thereby fundamentally solving the problem that the lens 4 cannot be continuously dustproofed after being disassembled in the prior art.

[0039] As shown in Figure 2 , a specific embodiment of the visual equipment provided with a dustproof device in the embodiment has at least two symmetrically arranged dustproof plates 2.

[0040] Specifically, the two dustproof plates 2 are symmetrically distributed on both sides of the opening 5, and when the lens 4 contacts the driven part 6 of the dustproof plate 2 and pushes the dustproof plate 2 to move, the two symmetrically arranged dustproof plates 2 can bear force uniformly, avoiding the situation that the dustproof plate 2 is stuck or deviated due to uneven force, thereby ensuring that the lens 4 can be smoothly installed at the opening 5 of the visual equipment body 1.

[0041] As shown in Figure 2 , Figure 3 , a specific embodiment of the visual equipment provided with a dustproof device in the embodiment further includes a fixed plate 7.

[0042] Specifically, the fixed plate 7 is fixedly connected to the visual equipment body 1 and forms a containing space with the visual equipment body 1, and the dustproof plate 2 is clamped and arranged to slide between the containing space formed by the fixed plate 7 and the visual equipment body 1. The dustproof plate 2 is clamped and arranged to slide between the fixed plate 7 and the visual equipment body 1, which can accurately limit the sliding direction of the dustproof plate 2, ensure that the dustproof plate 2 can only move along a specific path, avoid shaking or deviation of the dustproof plate 2 during sliding, improve the accuracy and stability of dustproof, facilitate installation and maintenance of the dustproof plate 2, and improve the convenience of equipment maintenance.

[0043] Further, a guide column 8 is vertically arranged on the side wall of the accommodating space, and the guide column 8 is inserted into the side wall of the dustproof plate 2 through the elastic member 3, thereby providing accurate guidance for the movement of the dustproof plate 2. When the lens 4 is installed or dismounted, the dustproof plate 2 moves under the driving of the elastic member 3, and the guide column 8 can ensure that the dustproof plate 2 smoothly slides along the predetermined straight track, thereby avoiding shaking, deviation or jamming of the dustproof plate 2 during the movement, and ensuring that the dustproof plate 2 reliably opens or closes the opening 5, thereby effectively improving the stability and reliability of the dustproof device.

[0044] As shown in Figure 1 , a specific embodiment of the visual equipment provided with the dustproof device in the embodiment has an avoiding hole 9 for exposing the driven part 6 of the dustproof plate 2.

[0045] Specifically, the avoiding hole 9 is a strip-shaped through hole, which provides a smooth contact path for the driving part 10 of the lens 4 and the driven part 6 of the dustproof plate 2. When the lens 4 is installed, the driving part 10 can smoothly contact and interact with the driven part 6 along the strip-shaped through hole, thereby promoting the dustproof plate 2 to move against the elastic force of the elastic member 3, and ensuring that the installation process of the lens 4 can be smoothly performed without jamming or interference due to the obstruction of the fixed plate 7.

[0046] It should be noted that the shape of the avoiding hole 9 is not limited in the embodiment, and the design of the avoiding hole 9 also has certain universality and flexibility. In different specifications and models of visual equipment, as long as the size and position of the strip-shaped through hole are reasonably adjusted, the driving part 10 of the lens 4 and the driven part 6 of the dustproof plate 2 of different shapes and sizes can be adapted, thereby facilitating the series design and production of products.

[0047] As shown in Figure 4 , a specific embodiment of the visual equipment provided with the dustproof device in the embodiment has a driving part 10 of the lens 4, and the driven part 6 of the dustproof plate 2 has an inclined surface 11 for sliding contact with the driving part 10.

[0048] Specifically, the inclined surface 11 optimizes the cooperative performance of the lens 4 and the dustproof plate 2. When the lens 4 is installed, the axial thrust is efficiently converted into a transverse sliding force of the dustproof plate 2, so that the dustproof plate 2 stably and quickly leaves the opening 5 with smaller installation force. Meanwhile, the inclined surface 11 plays a guiding role to ensure the stable movement of the dustproof plate 2 and avoid shaking and jamming. In addition, the inclined surface 11 makes the force distribution more uniform, reduces local stress concentration and wear, and prolongs the service life of the components. When the lens 4 is dismounted, the inclined surface 11 can also guide the dustproof plate 2 to accurately reset, thereby improving the use performance and protection ability of the equipment.

[0049] As shown in Figure 5As shown, this is a specific embodiment of the vision device with a dustproof device provided in this embodiment. The lens 4 has a lug 12 protruding outward in the radial direction in the circumferential direction, and the driving part 10 is formed at the extension end of the lug 12.

[0050] Specifically, when installing lens 4, the lug 12 facilitates operator positioning, making installation more precise and convenient. Furthermore, the lug 12 disperses stress, reducing the risk of lens 4 damage due to uneven stress and extending its service life. With the drive unit 10 located at the extended end of the lug 12, it can effectively contact the driven part 6 of the dustproof plate 2 during installation. Thanks to the reasonable contact angle and position, it is easier to push the dustproof plate 2 to overcome elastic force, achieving smooth movement and ensuring successful installation of lens 4 and proper avoidance of the opening 5 by the dustproof plate 2, thus improving equipment assembly efficiency and the reliability of the dustproof function.

[0051] Furthermore, the positioning through hole 13 on the lug 12 plays a crucial role in the installation process of the lens 4. During installation, the operator can use a positioning pin or other positioning tool to pass through the positioning through hole 13 to accurately determine the installation position of the lens 4 on the vision device body 1, ensuring that the lens 4 is placed in the most reasonable position, effectively avoiding installation deviations, and ensuring that the lens 4 can work stably and efficiently afterwards.

[0052] Alternatively, in other embodiments, an integrated snap-fit ​​can be used instead of the lug 12. A flexible snap-fit ​​structure is designed around the lens 4. During installation, the snap-fit ​​is aligned with the corresponding slot on the vision device body 1, and the lens 4 is pressed to engage the snap-fit ​​into the slot, thus achieving fixation.

[0053] like Figure 1 As shown, this is a specific embodiment of the vision device with a dustproof device provided in this embodiment. The lens 4 is detachably connected to the vision device body 1 through the lug 12.

[0054] Specifically, the lug 12 evenly distributes various external forces acting on the lens 4 during operation, preventing displacement or shaking of the lens 4 due to uneven force distribution, thereby ensuring the stability and accuracy of image acquisition by the vision device. Furthermore, the detachable lug 12 connection method provides great convenience when the lens 4 needs to be replaced, cleaned, or repaired. The lens 4 can be easily removed simply by loosening the fasteners connecting the lug 12 to the device body, without complicated operations or additional tools.

[0055] like Figure 1 As shown, this is a specific embodiment of the vision device with a dustproof device provided in this embodiment. The lug 12 is connected to a fastener for connecting to the vision device body 1.

[0056] Specifically, the fastener consists of a fixing block 14, a positioning rod 15, a pull rod 16, and a reset elastic element 17. The fixing blocks 14 are symmetrically arranged on both sides of the opening 5 in the visual device body 1. One end of the positioning rod 15 can movably pass through a pre-drilled through hole in the fixing block 14. Both ends of the pull rod 16 are securely connected to the other ends of the two positioning rods 15, respectively. One end of the reset elastic element 17 is tightly connected to the pull rod 16, while the other end is firmly fixed to the fixing block 14, thus forming a complete and stable connection structure.

[0057] Furthermore, during use, when it is necessary to disassemble the lens 4, first pull the lever 16. Under the action of the lever 16, the reset elastic element 17 connected to the lever 16 is elastically stretched, generating a spring force that allows the reset elastic element 17 to rebound. At the same time, the positioning rod 15, which is fixedly connected to the lever 16, will also move accordingly, and finally be pulled out from the positioning through hole 13 pre-set on the lug 12. At this time, the lens 4 can be taken out. After taking out the lens 4, release the lever 16, and under the elastic action of the reset elastic element 17, the positioning rod 15 will be reinserted into the positioning through hole 13. Correspondingly, when installing the lens 4, first pull the lever 16 to pull the positioning rod 15 out of the positioning through hole 13, and then accurately align the lens 4 with the opening 5 of the vision device body 1, so that the positioning hole on the lug 12 and the positioning rod 15 are in a coaxial position. Then, release the lever 16. Due to its own elastic restoring force, the reset elastic element 17 will drive the positioning rod 15 to move in the opposite direction, so that it is accurately inserted into the positioning through hole 13 of the lug 12, thereby firmly connecting the lens 4 to the vision device body 1, ensuring that the lens 4 remains stable during operation, and providing a reliable guarantee for the normal operation of the vision device.

[0058] like Figure 1 As shown, this is a specific embodiment of the vision device with a dustproof device provided in this embodiment. The opening 5 of the vision device body 1 has a protruding ring 18 extending outward from the center line of the opening 5. The protruding ring 18 is adapted to extend into the lens 4.

[0059] Specifically, during lens 4 installation, the convex ring 18 serves as a positioning structure, guiding the lens 4 to be accurately installed at the opening 5 of the vision device body 1, thus improving installation efficiency and accuracy. In terms of protection, after the convex ring 18 extends into the lens 4, the two fit tightly together, effectively preventing external dust and impurities from entering the vision device through the connection gap between the lens 4 and the opening 5. This protects the optical components and electronic parts inside the device, reduces the risk of damage due to contamination, extends the device's lifespan, and improves operational stability and reliability.

[0060] like Figure 5As shown, the end of the lens 4 has a clamping groove structure 19 for inserting the convex ring 18, which is a specific embodiment of the visual equipment provided in the present embodiment.

[0061] Specifically, the clamping groove structure 19 at the end of the lens 4 is well adapted to the convex ring 18 of the visual equipment body 1, and plays a key role in the installation process of the lens 4. The clamping groove can be precisely inserted into the convex ring 18, and plays a positioning role, so that the lens 4 is accurately connected with the opening 5 of the visual equipment body 1, and installation deviation is avoided.

[0062] Working principle:

[0063] The lens 4 is circumferentially provided with a lug 12, the lug 12 extends to form a driving portion 10, the visual equipment body 1 is provided with a convex ring 18 at the opening 5, the opening 5 is provided with a fixing block 14 with a fastener on both sides, and a dustproof plate 2. When installing the lens 4, the driving portion 10 of the lens 4 is in sliding contact with the inclined surface 11 of the driving portion 6, so as to convert the axial thrust into a transverse force, so that the dustproof plate 2 leaves the opening 5 by overcoming the elastic force of the elastic element 3. At the same time, the clamping groove structure 19 of the lens 4 is inserted into the body convex ring 18, so as to realize precise positioning and close connection; the operator holds the lug 12, and the lens 4 and the body are stably connected through the fastener (an integral structure composed of the fixing block 14, the positioning rod 15, the pull rod 16 and the elastic element 3) on the lug 12. When the equipment works, the close connection ensures the stability of the lens 4, and the image information is collected through the lens 4. When disassembling the lens 4, pulling the pull rod 16 makes the elastic element 3 drive the positioning rod 15 to pull out from the positioning hole of the lug 12, so that the lens 4 can be removed. After the lens 4 is removed, the elastic element 3 drives the dustproof plate 2 to reset and cover the opening 5, so as to block the dust and impurities from entering the interior of the equipment, and protect the precision components.

[0064] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope of the present application.

Claims

1. A visual equipment having a dustproof device, characterized by, The application relates to a visual equipment body (1) with an opening (5) for mounting a lens (4), a dustproof plate (2) slidably connected to the opening (5) of the visual equipment body (1) and used for covering the opening (5) of the visual equipment body (1), an elastic member (3) connected to the dustproof plate (2) and having an elastic force for driving the dustproof plate (2) to cover the opening (5), and the lens (4) mounted at the opening (5) of the visual equipment body (1) and having a driven part (6) in contact with the lens (4) during mounting to make the dustproof plate (2) leave the opening (5) against the elastic force of the elastic member (3). The dustproof plate (2) has at least two symmetrically arranged plates. The application further relates to a fixed plate (7) fixedly connected to the visual equipment body (1) and having a gap (9) for exposing the driven part (6), and the lens (4) has a driving part (10) and the driven part (6) of the dustproof plate (2) has an inclined surface (11) for slidably contacting the driving part (10). The lens (4) has a lug (12) outwardly protruding in a radial direction, and the driving part (10) is formed at an extension end of the lug (12). The lens (4) is detachably connected to the visual equipment body (1) through the lug (12).

2. The visual equipment with dustproof device according to claim 1, characterized in that, The lug (12) is connected with a fastener for connecting with the visual equipment body (1).

3. Visual equipment with dust protection according to claim 2, characterized in that The opening (5) of the visual equipment body (1) has a convex ring (18) extending and protruding towards the outside of the opening (5) along the center line direction of the opening (5), and the convex ring (18) is adapted to extend into the lens (4). The end of the lens (4) has a clamping groove structure (19) for inserting the convex ring (18).

4. The visual equipment with dustproof device according to claim 3, characterized in that, ​ 5. The visual equipment with dustproof device according to claim 1, characterized in that, ​ 6. The visual equipment with dustproof device according to claim 5, characterized in that, ​ 7. The visual equipment with dust protection device according to claim 6, characterized in that, ​ 8. Visual equipment with dust protection according to claim 7, characterized in that ​ 9. Visual equipment with dust protection according to any of claims 1-8, characterized in that, ​ 10. The visual equipment with dustproof device according to claim 9, characterized in that, ​

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