Projector

Abstract

The utility model relates to the technical field of projection equipment, in particular to a projector which comprises a body and an adjusting lens assembly arranged on the body, and the adjusting lens assembly comprises an adjusting cover, a movable lens and a matching support. The adjusting cover rotatably covers the working end of the body, the adjusting cover is further provided with a control cylinder, the control cylinder extends into the body, the matching support is fixed in the body, the outer surface of the movable lens comprises a limiting section and a control section, the limiting section is clamped with the control cylinder and is in sliding fit with the control cylinder, and the control section is connected with the control cylinder. The control end is in threaded fit with the matching bracket; when the adjusting cover is rotated, the movable lens is driven to rotate along with the adjusting cover through the clamping relation, the movable lens rotates relative to the matching support, and the movable lens is driven to slide relative to the adjusting cover through screw-thread fit. The projector provided by the utility model can conveniently realize focusing and / or zooming adjustment of the lens.

Description

Technical Field

[0001] The utility model relates to the technical field of projection devices, and particularly to a projector.

Background Art

[0002] In the process of the technological evolution of projection devices, users have put forward higher requirements for the operation convenience of projectors and the precise adjustment of projection effects. Traditional projector designs often have deficiencies in the lens adjustment mechanism. For example, the adjustment mechanism is complex, and professional tools or cumbersome steps are required to achieve focusing and zooming. This not only increases the operation difficulty for users but also limits the flexibility of immediately adjusting the picture clarity and size. Especially in scenarios where the projection distance needs to be frequently changed or the picture details need to be adjusted, such as business meetings, teaching demonstrations, or home theater applications, these limitations are particularly prominent.

[0003] To address the above problems, some projectors with simple focusing mechanisms are provided in the market. However, the adjustment components of projectors are usually made relatively small and located in positions that are not easily accessible. When users perform adjustments, they often need to operate repeatedly or go around to the side or back of the projector, making the usage process very inconvenient.

Content of the Utility Model

[0004] To solve the technical problem of the inconvenient use of the existing projector adjustment mechanism, the utility model provides a projector.

[0005] The solution of the utility model to solve the technical problem is to provide a projector, which includes a body and an adjustment lens assembly provided on the body. The adjustment lens assembly includes an adjustment cover, a movable lens, and a matching bracket. The adjustment cover is rotatably covered on the working end of the body. A control cylinder is also provided on the adjustment cover, and the control cylinder extends into the body. The matching bracket is fixed in the body. The outer surface of the movable lens includes a limiting section and a control section. The limiting section is clamped and slidably matched with the control cylinder, and the control end is threadedly matched with the matching bracket. When the adjustment cover is rotated, the movable lens is driven to rotate together with the adjustment cover through the clamping relationship, and the movable lens rotates relative to the matching bracket. Through the threaded cooperation, the movable lens is driven to slide relative to the adjustment cover.

[0006] Preferably, on the inner surface of the control cylinder and the limiting section, one is provided with a slide rail and the other is provided with a slider, and the slider is slidably clamped in the slide rail.

[0007] Preferably, the body includes a housing, and the housing includes a connected main body section and a matching section. The matching section is provided corresponding to the projection end of the projector, and the adjustment cover is rotatably sleeved on the matching section.

[0008] Preferably, a limiting ring is provided on the end face of the mating section, the control cylinder passes through the limiting ring and enters into the shell, a limiting piece is provided on the control cylinder, and an elastic buckle is provided on the limiting ring corresponding to the limiting piece; when installing the adjusting cover, the limiting piece is aligned with the elastic buckle and the control cylinder is pushed into the shell, and the elastic buckle is reset after the installation is completed, and the limiting ring limits the freedom of movement of the adjusting cover in the projection direction.

[0009] Preferably, a first through hole is further provided on the end face of the mating section, the first through hole is spaced apart from the limiting ring, a second through hole is provided on the adjusting cover corresponding to the first through hole, and the interior of the shell is connected to the outside world through the first through hole and the second through hole in sequence.

[0010] Preferably, a decorative cover is further provided on the side of the adjustment cover away from the second through hole, a gap connected to the second through hole is provided between the decorative cover and the adjustment cover, and the interior of the shell is connected to the outside through the first through hole, the second through hole and the gap in sequence.

[0011] Preferably, the main body and the adjusting cover are both cylindrical, and the outer diameter of the adjusting cover is matched with the outer diameter of the main body.

[0012] Preferably, the housing further comprises a projection module, the projection module is arranged in the housing, the projection module comprises a light source and an optical path component, and the light source, the optical path component and the adjustment lens component are arranged in sequence.

[0013] Preferably, a heat dissipation module is also provided in the shell, and the heat dissipation module includes a heat dissipation fan and a heat conduction member, the heat dissipation fan is provided corresponding to the optical path component, the heat conduction member is provided corresponding to the light source, and the shell is provided with an opening corresponding to the heat conduction member, and the heat conduction member is exposed through the opening.

[0014] Preferably, it also includes an adjustment base, which includes a chassis and an adjustable support rod. A storage groove is provided on the main body, and an adjustment structure is provided in the storage groove. One end of the adjustable support rod is connected to the adjustment base, and the other end is rotatably connected to the adjustment structure; the main body is rotated relative to the adjustable support rod through the adjustment structure so that the adjustable support rod enters or leaves the storage groove.

[0015] Compared with the prior art, the utility model provides a projector with the following advantages:

[0016] 1. An embodiment of the present utility model provides an innovative adjustable lens assembly, which is composed of an adjustment cover, a movable lens, and a matching bracket. The adjustment cover is designed to be rotatable and cover the working end of the projector body. A control cylinder is built-in, and through the interaction between the control cylinder and the movable lens, the rotation and sliding adjustment of the lens are realized. Specifically, the adjustment cover covering the working end of the body is used as an operating component, and a part of the structure, namely the control cylinder on the adjustment cover, is used as the actual structure for driving the movable lens. This is equivalent to magnifying the actual operating structure of the user, making it more convenient to operate. The outer surface of the movable lens is divided into a limiting section and a control section, which are respectively in snap-fit sliding with the control cylinder and in threaded cooperation with the matching bracket, realizing the dual adjustment of the rotation and sliding of the lens. This not only ensures the flexibility of the adjustment but also improves the stability of the lens positioning. This design simplifies the lens adjustment process, enabling the user to simultaneously achieve the focusing and / or zoom adjustment of the lens by simply rotating the adjustment cover. Such a design improves the operation convenience, eliminates the need for additional tools, enhances the ability to instantaneously adjust the picture clarity and size, and is particularly suitable for occasions that require quickly adapting to different projection distances and adjusting picture details, such as business, education, and home entertainment environments.

[0017] 2. In the projector of the embodiment of the present utility model, the combination of the slide rail and the slider ensures the stable and smooth movement track of the movable lens during the adjustment process. Through the automatic guiding action of the slide rail, the slider, and the threaded cooperation, the user only needs to rotate the adjustment cover to drive the slider to move along the slide rail, thereby indirectly controlling the lens position. This design avoids the user directly operating small and complex mechanical components, simplifies the adjustment steps, and improves the user experience.

[0018] 3. The main body section and the matching section of the embodiment of the present utility model are specifically set corresponding to the projection end, and the adjustment cover is rotatably sleeved on the matching section. This design enables the user to easily access the adjustment cover and perform the focusing and zoom adjustment of the lens without complex operations, greatly improving the use convenience. The adjustment cover being rotatably sleeved on the matching section can avoid interference between the adjustment cover and the matching section.

[0019] 4. In the projector of the embodiment of the present utility model, by providing a limiting ring and an elastic buckle on the end face of the matching section, when installing the adjustment cover, the elastic deformation of the elastic buckle is used to avoid the position of the limiting member, so that the limiting member will not interfere with the limiting ring; the elastic buckle that returns to its original position after installation will not affect the position limitation of the limiting ring on the limiting member. This design strengthens the installation stability of the adjustment cover and the positioning accuracy during adjustment, avoids accidental movement that may occur during the adjustment process, and improves the reliability of the device.

[0020] 5. The through holes provided on the end face of the mating section and the adjustment cover, as well as the design of the communication between the inside and outside of the housing in the embodiments of the present utility model, not only provide necessary ventilation paths, but also help reduce the internal temperature accumulation, effectively assist in heat dissipation, and extend the service life of the projector.

[0021] 6. The decorative cover in the embodiments of the present utility model not only beautifies the product appearance, but also cleverly maintains the air circulation between the inside of the housing and the outside. This design takes into account both aesthetics and functionality, and improves the market competitiveness of the product.

[0022] 7. The cylindrical design of the main body and the adjustment cover in the embodiments of the present utility model, and the precise adaptation of their outer diameters, not only enhance the aesthetics and consistency of the overall structure, but also facilitate production and assembly, and reduce the manufacturing cost.

[0023] 8. The integrated design of the projection module in the embodiments of the present utility model, especially the optimized arrangement of the light source and the optical path components, not only ensures the projection quality, but also realizes a compact and efficient internal layout, and can well adapt to the cylindrical structure of the main body.

[0024] 9. By providing a heat dissipation module inside the housing in the embodiments of the present utility model, the temperature inside the projector can be effectively controlled and reduced. Specifically, the cooling fan is directly arranged facing the optical path component, which can quickly take away the heat generated during the operation of the optical path, while the heat conduction member is arranged adjacent to the light source, which can quickly conduct and dissipate the high temperature generated by the light source. The two work together to ensure efficient heat dissipation near the heat source and extend the service life of the light source and the optical path component; an opening is provided on the housing for the heat conduction member, so that the heat conduction member can directly contact the external environment, which helps to improve the heat exchange efficiency. The exposed heat conduction member can transfer the internal heat to the external air faster, and can maintain a good heat dissipation effect even in a closed or limited ventilation environment, ensuring the stable operation of the projector during long-term continuous use; by providing a dust removal window in the area of the housing corresponding to the optical path component and configuring a detachable baffle, when the user needs to clean the accumulated dust, there is no need to disassemble the complex internal structure of the projector, and only need to simply remove the baffle to directly access the optical path component for cleaning. This design greatly simplifies the maintenance operation and reduces the maintenance difficulty and cost; when the baffle is removed, the cooling fan can communicate with the outside, and through the airflow generated by its operation, it can effectively drive the air circulation and assist in removing the dust around the optical path component.

[0025] 10. In the embodiment of the present utility model, an adjustable base is provided, especially the design of an adjustable support rod, which enables the projector to quickly adjust the height and angle according to the actual use environment to meet different projection requirements. This is particularly important in diverse scenarios such as homes, offices, and classrooms, enhancing the flexibility and convenience of use; the storage groove provided on the body and the internal adjustment structure allow users to completely store the support rod inside the projector when not in use, greatly saving storage space, protecting the support rod from accidental damage, and increasing the portability and storage safety of the device. The design of the chassis provides a stable base for the entire projector, ensuring stability during the adjustment process and in use. Users can easily control the telescoping and angle adjustment of the support rod through the adjustment structure without the need for any tools, with simple and quick operation, reducing the time and difficulty of setting up the projector and enhancing the user experience.

Description of the Drawings

[0026] Figure 1 is an exploded view of a projector provided by an embodiment of the present utility model Figure 1 .

[0027] Figure 2 is an exploded view of a projector provided by an embodiment of the present utility model Figure 2 .

[0028] Figure 3 is Figure 2 an enlarged view of A in

[0029] Figure 4 is a schematic structural view of the housing of a projector provided by an embodiment of the present utility model.

[0030] Figure 5 is a schematic structural view of the adjustment cover of a projector provided by an embodiment of the present utility model.

[0031] Figure 6 is a cross-sectional view of a part of the structure of a projector provided by an embodiment of the present utility model Figure 1 .

[0032] Figure 7 is a cross-sectional view of a part of the structure of a projector provided by an embodiment of the present utility model Figure 2 .

[0033] Figure 8 is a working state display diagram of a projector provided by an embodiment of the present utility model.

[0034] Figure 9 is a folded state display diagram of a projector provided by an embodiment of the present utility model.

[0035] Figure 10 is an exploded view of a projector provided by an embodiment of the present utility modelFigure 3 。

[0036] Description of the drawing reference numerals:

[0037] 100, projector; 10, main body; 20, adjustment lens assembly;

[0038] 1, adjustment cover; 11, rotating cover body; 111, second through hole; 12, control cylinder; 121, slide rail; 122, limiting member; 2, movable lens; 21, limiting section; 211, slider; 22, control section; 3, matching bracket; 4, decorative cover; 41, gap;

[0039] 5, housing; 51, main body section; 52, matching section; 521, limiting ring; 5211, elastic buckle; 522, first through hole; 53, receiving groove; 54, dust removal window; 55, baffle; 551, handle position; 6, projection module; 61, light source; 621, front Fresnel lens; 622, liquid crystal screen; 623, rear Fresnel lens; 624, light condensing structure; 71, cooling fan; 72, heat conduction member; 8, adjustment base; 81, chassis; 82, adjustable support rod.

Detailed implementation manners

[0040] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the attached drawings and implementation examples. It should be understood that the specific implementation examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0041] It should be noted that the terms "first" and "second" etc. in the description and claims of the present invention are used to distinguish different objects and are not used to describe a specific order.

[0042] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0043] In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the attached drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0044] Moreover, in addition to being used to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0045] In addition, the terms "installed", "set up", "provided with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] Please refer to Figures 1 to 3 , the first embodiment of this utility model provides a projector 100, which includes a main body 10 and an adjustable lens assembly provided on the main body 10. The adjustable lens assembly 20 includes an adjustment cover 1, a movable lens 2, and a mating bracket 3; the adjustment cover 1 is rotatably covered on the working end of the main body 10, and a control cylinder 12 is also provided on the adjustment cover 1. The control cylinder 12 extends into the main body 10. The mating bracket 3 is fixed in the main body 10. The outer surface of the movable lens 2 includes a limiting section 21 and a control section 22. The limiting section 21 is snap-fitted and slidably engaged with the control cylinder 12, and the control end is threadedly engaged with the mating bracket 3; when the adjustment cover 1 is rotated, the movable lens 2 is driven to rotate together with the adjustment cover 1 through the snap-fit relationship. The movable lens 2 rotates relative to the mating bracket 3, and the movable lens 2 is driven to slide relative to the adjustment cover 1 through the threaded engagement.

[0047] It can be understood that the embodiment of this utility model provides an innovative adjustable lens assembly. This assembly is composed of an adjustment cover 1, a movable lens 2, and a mating bracket 3. Among them, the adjustment cover 1 is designed to be rotatable and cover the working end of the main body 10 of the projector 100, and a control cylinder 12 is built-in. Through the interaction between the control cylinder 12 and the movable lens 2, the rotation and sliding adjustment of the lens are realized. It should be noted that the working end refers to the end where the light projection outlet of the projector 100 is located.

[0048] Specifically, in this embodiment, the adjustment cover 1 covering the working end of the main body 10 is used as the operating component, and a part of the structure of the control cylinder 12 on the adjustment cover 1 is used as the actual structure for actually driving the movable lens 2. This is equivalent to magnifying the actual operating structure of the user, making it more convenient to operate. The outer surface of the movable lens 2 is divided into a limiting section 21 and a control section 22, which are respectively in snap-fit sliding with the control cylinder 12 and in threaded fit with the matching bracket 3, realizing the dual adjustment of the rotation and sliding of the lens. This not only ensures the flexibility of the adjustment but also improves the stability of the lens positioning. This design simplifies the lens adjustment process, enabling the user to only rotate the adjustment cover 1 to simultaneously achieve the focusing and / or zoom adjustment of the lens. Such a design improves the operation convenience, eliminates the need for additional tools, enhances the ability to instantaneously adjust the picture clarity and size, and is especially suitable for occasions that require quickly adapting to different projection distances and picture detail adjustments, such as business, education, and home entertainment environments.

[0049] As a feasible implementation manner, please combine Figure 2 and Figure 3 , the control cylinder 12, the movable lens 2, and the matching bracket 3 are all cylindrical. The limiting section 21 of the movable lens 2 is sleeved inside the control cylinder 12 and the two are in sliding fit, and the control section 22 of the movable lens 2 is sleeved inside the matching bracket 3 and the two are in threaded fit.

[0050] As a feasible implementation manner, on the inner surface of the control cylinder 12 and the limiting section 21, one is provided with a slide rail 121, and the other is provided with a slider 211, and the slider 211 is slidably snap-fitted inside the slide rail 121.

[0051] It can be understood that in the projector 100 of the embodiment of the present utility model, the combination use of the slide rail 121 and the slider 211 ensures that the movement trajectory of the movable lens 2 is stable and smooth during the adjustment process. Through the automatic guiding action of the slide rail 121, the slider 211, and the threaded fit, the user only needs to rotate the adjustment cover 1 to drive the slider 211 to move along the slide rail 121, thereby indirectly controlling the lens position. This design avoids the user directly operating small and complex mechanical components, simplifies the adjustment steps, and improves the user experience.

[0052] As a feasible implementation manner, the slide rail 121 is arranged along the projection direction of the projector 100.

[0053] Optionally, the number of the slide rails 121 is at least one, and the number of the sliders 211 corresponds to that of the slide rails 121.

[0054] As a feasible implementation manner, the number of the slide rails 121 is at least two, and the slide rails 121 are symmetrically distributed on the inner surface of the control cylinder 12 with the center of symmetry being the central axis of the control cylinder 12.

[0055] Understandably, through the design of the symmetrically distributed slide rails 121, the movable lens 2 can achieve better balance and stability during rotation and sliding, reducing the possibility of deviation or shaking, thereby improving the accuracy of lens adjustment and ensuring the clarity and stability of the projection screen. Moreover, the symmetrically arranged slide rails 121 can more evenly distribute the pressure borne by the movable lens 2 during adjustment, reduce the wear rate of a single slide rail 121, extend the service life, and improve the durability of the overall structure.

[0056] As a feasible implementation manner, please refer to Figure 2 and Figure 3 , the adjustment cover 1 includes a rotating cover body 11, and the control cylinder 12 is vertically arranged in the middle area of the rotating cover body 11; the rotating cover body 11 covers the main body 10, and the control cylinder 12 penetrates into the main body 10.

[0057] Furthermore, please refer to Figure 1 and Figure 4 , the main body 10 includes a housing 5, the housing 5 includes a connected main body section 51 and a mating section 52, the mating section 52 is arranged corresponding to the projection end of the projector 100, and the adjustment cover 1 is rotatably sleeved on the mating section 52.

[0058] Understandably, the main body section 51 and the mating section 52 of the embodiment of the present utility model are specifically arranged corresponding to the projection end, and the adjustment cover 1 is rotatably sleeved on the mating section 52. This design enables users to easily access the adjustment cover 1 and perform focus and zoom adjustments of the lens without complex operations, greatly improving the convenience of use. The adjustment cover 1 being rotatably sleeved on the mating section 52 can avoid interference between the adjustment cover 1 and the mating section 52.

[0059] As a feasible implementation manner, both the main body section 51 and the mating section 52 are generally cylindrical, the outer diameter of the mating section 52 is smaller than the outer diameter of the main body section 51, the mating section 52 and the main body section 51 are coaxially arranged, and an annular mounting step is formed between the end face of the main body section 51 close to the mating section 52 and the circumferential outer surface of the mating section 52. The adjustment cover 1 is rotatably sleeved on the annular mounting step.

[0060] Understandably, the size difference between the main body section 51 and the mating section 52 forms an annular mounting step. Such a design increases the contact area between the adjustment cover 1 and the main body 10, improves the stability of the adjustment cover 1, ensures that the entire adjustment lens assembly can work stably when rotating the adjustment cover 1, reduces vibration and unnecessary movement, thereby improving the stability of the projection screen; and the annular mounting step, as a clear positioning and supporting structure, makes the installation of the adjustment cover 1 simple and intuitive, and users or technicians can easily disassemble and assemble the adjustment cover 1.

[0061] Furthermore, please refer to Figure 4 andFigure 5 A limiting ring 521 is provided at the end face of the mating section 52. The control cylinder 12 passes through the limiting ring 521 and enters the housing 5. A limiting member 122 is provided on the control cylinder 12, and an elastic buckle 5211 corresponding to the limiting member 122 is provided on the limiting ring 521. When installing the adjustment cover 1, after aligning the limiting member 122 with the elastic buckle 5211, the control cylinder 12 is pushed into the housing 5. After installation, the elastic buckle 5211 resets, and the limiting ring 521 restricts the freedom of movement of the adjustment cover 1 in the projection direction.

[0062] It can be understood that the projector 100 of the embodiment of the present invention is provided with a limiting ring 521 and an elastic buckle 5211 at the end face of the mating section 52, so that when installing the adjustment cover 1, the elastic deformation of the elastic buckle 5211 is used to avoid the position of the limiting member 122, so that the limiting member 122 will not interfere with the limiting ring 521; the elastic buckle 5211 that resets after installation will not affect the position limitation of the limiting ring 521 on the limiting member 122. This design strengthens the installation stability of the adjustment cover 1 and the positioning accuracy during adjustment, avoids accidental movement that may occur during the adjustment process, and improves the reliability of the device.

[0063] As a feasible implementation manner, the elastic buckle 5211 and the limiting ring 521 are located in the same plane. The elastic buckle 5211 has a fixed end and a movable end. The fixed end is connected to the side of the limiting ring 521 close to the adjustment cover 1, and the movable end is located on the side of the limiting ring 521 away from the adjustment cover 1. During the process of pushing the adjustment cover 1 into the housing 5 from the limiting ring 521, the limiting member 122 of the adjustment cover 1 abuts against the elastic buckle 5211, and the elastic buckle 5211 deforms in the direction away from the middle region of the annular member to release the abutment. After the limiting member 122 passes through the limiting ring 521, the elastic buckle 5211 resets; after installation, the end face of the limiting ring 521 close to the inside of the housing 5 abuts against the limiting member 122 to realize the limitation of the freedom of movement of the adjustment cover 1 in the axial direction.

[0064] Furthermore, please refer to Figure 4 and Figure 5 A first through hole 522 is further provided on the end face of the mating section 52. The first through hole 522 and the limiting ring 521 are arranged at intervals. A second through hole 111 corresponding to the first through hole 522 is provided on the adjustment cover 1. The inside of the housing 5 communicates with the outside through the first through hole 522 and the second through hole 111 in sequence.

[0065] It can be understood that the through holes provided on the end face of the mating section 52 and the adjustment cover 1 of the projector 100 of the embodiment of the present invention, as well as the communication design between the inside and outside of the housing 5, not only provide a necessary ventilation path, but also help to reduce the internal temperature accumulation, effectively assist in heat dissipation, and extend the service life of the projector 100.

[0066] Optionally, the number of the first through holes 522 is at least one.

[0067] As a feasible implementation, there are multiple first through holes 522, and the multiple first through holes 522 are arranged around the limiting ring 521. The multiple first through holes 522 are arranged at intervals.

[0068] Furthermore, a decorative cover 4 is provided on the side of the adjustment cover 1 away from the second through hole 111, and a gap 41 connected to the second through hole 111 is provided between the decorative cover 4 and the adjustment cover 1. The interior of the shell 5 is connected to the outside through the first through hole 522, the second through hole 111 and the gap 41 in sequence.

[0069] It can be understood that the decorative cover 4 of the embodiment of the utility model not only beautifies the appearance of the product, but also cleverly maintains air circulation between the inside of the shell 5 and the outside. This design takes into account both aesthetics and functionality, and enhances the market competitiveness of the product.

[0070] Specifically, the decorative cover 4 is mainly used to cover the first through hole 522 and the second through hole 111 .

[0071] Furthermore, the main body and the adjusting cover 1 are both cylindrical, and the outer diameter of the adjusting cover 1 matches the outer diameter of the main body.

[0072] It can be understood that the cylindrical design of the main body and the adjustment cover 1 of the embodiment of the utility model, and the precise matching of their outer diameters, not only enhance the aesthetics and consistency of the overall structure, but also facilitate production and assembly, thereby reducing manufacturing costs.

[0073] For further information, see Figure 7 The shell 5 also includes a projection module 6, which is arranged in the shell 5. The projection module 6 includes a light source 61 and an optical path component. The light source 61, the optical path component and the adjustment lens component are arranged in sequence.

[0074] It can be understood that the integrated design of the projection module 6 of the embodiment of the utility model, especially the optimized arrangement of the light source 61 and the optical path components, not only ensures the projection quality, but also realizes a compact and efficient internal layout, which can be well adapted to the cylindrical structure of the main body.

[0075] As a feasible implementation, the optical path assembly includes a front mirror 621 , a liquid crystal screen 622 , a rear mirror 623 and a focusing structure 624 which are sequentially arranged in a direction close to the light source 61 .

[0076] Understandably, the light condensing structure 624 is arranged adjacent to the light source 61. Its primary function is to converge the light emitted by the light source 61, improve the utilization efficiency of the light, and ensure that more light can be effectively utilized, which is crucial for enhancing the overall brightness of the projector 100. Especially in low-light environments, it can significantly improve the visibility and brightness of the image. The rear Fresnel lens 623 is arranged immediately after the light condensing structure. It plays the role of light guiding and preliminary correction. By precisely controlling the direction and distribution of the light, it ensures that the light is transmitted to the subsequent liquid crystal screen assembly in an optimized manner, reducing stray light and light loss, thereby enhancing the clarity of the image. The liquid crystal screen 622 is the central link for image formation. The light is irradiated onto it after precise regulation, and an image is formed by controlling the light transmittance of each pixel point. This setting ensures that the optical path has been fully optimized before reaching the imaging unit, resulting in a richly colored, high-contrast, and detailed image. The front Fresnel lens 621 is located at the end of the optical path. It further converges and corrects the image light that has been processed by the liquid crystal screen 622, eliminates possible aberrations, and ensures that the light output to the screen is uniform and accurate, enhancing the uniformity and edge sharpness of the picture, which is crucial for obtaining a high-quality projection effect.

[0077] Furthermore, a heat dissipation module is also provided inside the housing 5. The heat dissipation module includes a heat dissipation fan 71 and a heat conduction member 72. The heat dissipation fan 71 is arranged corresponding to the optical path component, and the heat conduction member 72 is arranged corresponding to the light source 61. The housing 5 is provided with an opening corresponding to the heat conduction member 72, and the heat conduction member 72 is exposed through the opening.

[0078] Understandably, in the embodiment of the present utility model, by providing a heat dissipation module inside the housing 5, the temperature inside the projector 100 can be effectively controlled and reduced. Specifically, the heat dissipation fan 71 is directly arranged facing the optical path component, which can quickly take away the heat generated during the operation of the optical path. The heat conduction member 72 is arranged adjacent to the light source 61, which can quickly conduct and dissipate the high temperature generated by the light source 61. The two work together to ensure efficient heat dissipation near the heat source, extending the service life of the light source 61 and the optical path component. The housing 5 is provided with an opening for the heat conduction member 72, enabling the heat conduction member 72 to directly contact the external environment, which helps to improve the heat exchange efficiency. The exposed heat conduction member 72 can transfer the internal heat to the external air faster, maintaining a good heat dissipation effect even in a closed or limited ventilation environment, ensuring the stable operation of the projector 100 during long-term continuous use.

[0079] As a feasible implementation, a part of the heat conduction member 72 is in contact with the light source 61, and the other part is arranged corresponding to the cooling fan 71. It can be understood that the design of directly attaching the heat conduction member 72 to the light source 61 can quickly absorb a large amount of heat generated when the light source 61 works. Since the heat conduction member made of metal or other highly heat-conductive materials can quickly conduct heat energy from the heat source, this significantly shortens the heat response time, improves the heat dissipation efficiency, helps to maintain the light source within a safe operating temperature range, and extends the service life of the light source 61; the heat is effectively transferred to the vicinity of the cooling fan 71 through the heat conduction member 72, and the cooling fan 71 can then forcibly discharge this part of the heat outside the machine. In this way, not only the light source 61 itself is cooled, but also the temperature rise inside the entire projector 100 is effectively controlled, avoiding performance degradation or system failures caused by high temperatures, and improving the stability and reliability of the projector during operation.

[0080] As a feasible implementation, the heat conduction member 72 is a plurality of heat sinks arranged in an array, and the heat sinks are spaced apart. It can be understood that by setting it as an array of multiple heat sinks, compared with a single large-area heat conduction member 72, the total heat dissipation surface area is significantly increased, so that the heat generated by the light source 61 can be more efficiently dispersed and transferred, improving the heat dissipation efficiency. There are intervals between the heat sinks, which can form natural air flow channels. When the cooling fan 71 works, these channels can promote air circulation, enhance the convective heat transfer effect, and accelerate the heat removal from the surface of the heat sinks, making the heat dissipation effect better.

[0081] Furthermore, please refer to Figure 8 and Figure 9 , this projector 100 further includes an adjustment base 8. The adjustment base 8 includes a chassis 81 and an adjustable support rod 82. A storage groove 53 is provided on the main body 10, and an adjustment structure is provided in the storage groove 53. One end of the adjustable support rod 82 is connected to the adjustment base 8, and the other end is rotatably connected to the adjustment structure; the main body 10 rotates relative to the adjustable support rod 82 through the adjustment structure, so that the adjustable support rod 82 enters or exits the storage groove 53.

[0082] Understandably, in the embodiment of the present utility model, an adjustment base 8 is provided, especially the design of the adjustable support rod 82, which enables the projector 100 to quickly adjust its height and angle according to the actual usage environment to meet different projection requirements. This is particularly important in diverse scenarios such as homes, offices, and classrooms, enhancing the flexibility and convenience of use; the storage groove 53 provided on the main body 10 and the internal adjustment structure allow the user to completely store the support rod inside the projector 100 main body 10 when not in use, greatly saving storage space and protecting the support rod from accidental damage, increasing the portability and storage security of the device. The design of the chassis 81 provides a stable base for the entire projector 100, ensuring stability during the adjustment process and in use. The user can easily control the telescoping and angle adjustment of the support rod through the adjustment structure without the need for any tools, with simple and quick operation, reducing the time and difficulty of setting up the projector 100 and enhancing the user experience.

[0083] Please refer to Figure 4 , Figure 9 and Figure 10 , there is also a dust removal window 54 provided on the housing 5. The dust removal window 54 communicates with the optical path component, and a detachable baffle 55 is also provided on the housing 5 corresponding to the dust removal port.

[0084] Understandably, the dust removal window 54 directly communicates with the optical path component, enabling the user to directly access the optical path part without disassembling the entire projector 100, facilitating regular cleaning of accumulated dust and dirt; the detachable baffle 55 design simplifies the cleaning process. The user can quickly open the baffle, simplifying the cleaning process. The baffle 55 remains closed when not in cleaning and maintenance, effectively preventing external dust and foreign objects from entering the optical path component, protecting the internal precision optical components from damage, and extending the service life of the projector.

[0085] As a feasible implementation, when the baffle 55 is removed, the cooling fan 71 can communicate with the outside world through the optical path component and the dust removal window 54 in sequence.

[0086] Understandably, when the baffle 55 is removed, the cooling fan 71 can communicate with the outside world. Through the airflow generated by its operation, it can effectively drive air circulation and assist in removing dust around the optical path component; specifically, this method uses the existing cooling system for dust removal, which not only utilizes existing resources but also improves the cleaning efficiency and effect, avoiding the impact of dust accumulation on the projection quality, such as problems like blurred images and reduced brightness; moreover, the detachable baffle is in a closed state usually, which can effectively prevent external dust and impurities from directly entering the optical path system, reducing the pollution of optical components, extending the service life of the optical path component and the entire projector. At the same time, this also helps to keep the internal environment clean and enhances the stability and reliability of the projector.

[0087] As an optional embodiment, the exposed surface of the baffle 55 is further provided with a gripping position 551. It can be understood that the presence of the gripping position 551 significantly improves the user's ability to easily grasp and remove the baffle 55 without the aid of tools. The user only needs to hold the gripping position with his fingers to open or close the baffle simply and quickly, without having to fumble for a suitable point of force, which greatly improves the convenience and efficiency of the operation.

[0088] Please combine Figures 1 to 10 The process / principle of using the projector in this embodiment is briefly described as follows: the user needs to place the projector 100 on an external placement surface, and adjust the angle and height of the main body by adjusting the structure and the adjustable support rod 82, thereby adjusting the projection position of the projector 100.

[0089] During the projection process, the user can start the lens adjustment process by rotating the adjustment cover 1 installed at the working end of the body 10. Specifically, the adjustment cover 1 has a built-in control cylinder 12, and the control cylinder 12 rotates together with the adjustment cover 1. The control cylinder 12 and the limit section 21 of the movable lens 2 are engaged by snap-fitting and sliding, and the control section 22 and the matching bracket 3 are engaged by threads; when the adjustment cover 1 is rotated, the movable lens 2 rotates and slides accordingly through the snap-fitting and threaded engagement mechanism to achieve precise adjustment of focus and zoom. It should be noted that the control cylinder 12 and the movable lens 2 will rotate together, but there will be no relative rotation between the two. This is due to the position limitation brought by the slide rail 121 and the slide rail 121. At the same time, the design of the slide rail 121 and the slider 211 ensures the smoothness and precision of the adjustment process.

[0090] At the same time, when the projector 100 is working, the cooling fan 71 is directly facing the optical path component to quickly take away the heat generated during operation, and the heat conduction member 72 is close to the light source 61 and is in direct contact with the outside through the opening on the shell 5 to effectively dissipate heat; in addition, the first through hole 522 on the shell 5 and the second through hole 111 on the adjustment cover 1, as well as the gap 41 between the decorative cover 4, and the interval between the optical path components, together constitute a path for internal and external air circulation, assisting heat dissipation and maintaining a suitable internal temperature.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A projector, characterized in that: It comprises a body and an adjustable lens assembly arranged on the body, wherein the adjustable lens assembly comprises an adjustable cover, a movable lens and a matching bracket; The adjusting cover is rotatably covered on the working end of the body, and a control cylinder is also provided on the adjusting cover, and the control cylinder extends into the body, and the matching bracket is fixed in the body, and the outer surface of the movable lens includes a limiting section and a control section, and the limiting section is clamped and slidably matched with the control cylinder, and the control section is threadedly matched with the matching bracket; When the adjusting cover is rotated, the movable lens is driven to rotate together with the adjusting cover through the snap-fit ​​relationship, the movable lens rotates relative to the matching bracket, and the movable lens is driven to slide relative to the adjusting cover through the threaded matching.

2. The projector according to claim 1, wherein: The inner surface of the control cylinder and the limiting section are provided with a slide rail on one side and a slider on the other side. The slider can be slidably engaged in the slide rail.

3. The projector according to claim 1, wherein: The main body comprises a shell, and the shell comprises a main body section and a matching section which are connected to each other. The matching section is arranged corresponding to the projection end of the projector, and the adjustment cover is rotatably sleeved on the matching section.

4. The projector according to claim 3, characterized in that: A limiting ring is provided on the end face of the mating section, the control cylinder passes through the limiting ring and enters into the shell, a limiting piece is provided on the control cylinder, and an elastic buckle is provided on the limiting ring corresponding to the limiting piece; when installing the adjusting cover, the limiting piece is aligned with the elastic buckle and the control cylinder is pushed into the shell, and the elastic buckle is reset after the installation is completed, and the limiting ring limits the freedom of movement of the adjusting cover in the projection direction.

5. The projector according to claim 4, characterized in that: A first through hole is also provided on the end surface of the mating section, the first through hole is spaced apart from the limiting ring, a second through hole is provided on the adjusting cover corresponding to the first through hole, and the interior of the shell is connected to the outside world through the first through hole and the second through hole in sequence.

6. The projector according to claim 5, characterized in that: A decorative cover is further provided on a side of the adjustment cover away from the second through hole, a gap communicating with the second through hole is provided between the decorative cover and the adjustment cover, and the interior of the shell is communicated with the outside world via the first through hole, the second through hole and the gap in sequence.

7. The projector according to claim 1, wherein: The main body and the adjusting cover are both cylindrical, and the outer diameter of the adjusting cover is matched with the outer diameter of the main body.

8. The projector according to claim 3, characterized in that: The housing further comprises a projection module, which is arranged in the housing. The projection module comprises a light source and an optical path component, wherein the light source, the optical path component and the adjustment lens component are arranged in sequence.

9. The projector according to claim 8, characterized in that: A heat dissipation module is also provided in the shell, and the heat dissipation module includes a heat dissipation fan and a heat conduction member. The heat dissipation fan is provided corresponding to the optical path component, and the heat conduction member is provided corresponding to the light source. The shell is provided with an opening corresponding to the heat conduction member, and the heat conduction member is exposed through the opening. A dust removal window is also provided in the area of ​​the shell corresponding to the location of the optical path component, and a detachable baffle is provided on the dust removal window. When the baffle is removed, the heat dissipation fan can be connected to the outside world through the optical path component and the dust removal window in turn.

10. The projector according to claim 1, wherein: It also includes an adjustment base, the adjustment base includes a chassis and an adjustable support rod, the body is provided with a storage slot, an adjustment structure is provided in the storage slot, one end of the adjustable support rod is connected to the adjustment base, and the other end is rotatably connected to the adjustment structure; The main body is rotated relative to the adjustable support rod through the adjustment structure, so that the adjustable support rod enters or leaves the storage groove.

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