Projection sheet support and projection device
By designing a limit cover for the slide holder and an elastic connection with the mounting bracket, the problem of inconvenient slide replacement in traditional projection devices is solved, thereby improving replacement efficiency and enhancing component stability.
Patent Information
- Application Number
- CN202520317698.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Traditional projection devices have many support components and complex connections, making it inconvenient to replace the projection sheet.
Design a slide holder, including a mounting bracket and a limiting cover. The limiting cover is elastically connected to the mounting bracket. The slide replacement process is simplified by the detachable connection between the limiting part and the mating part.
It improves the efficiency of projector replacement, simplifies the disassembly process, reduces component wear, and enhances the stability and ease of replacement of projectors.
Smart Images
Figure CN223796818U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of projection device technology, and in particular to a slide holder and a projection device. Background Technology
[0002] With societal progress, projection devices are finding increasingly wider applications, commonly used in teaching, conferences, advertising, and other fields. Some existing projection devices allow users to change the projected content by replacing the slide. These devices include a bracket for mounting the slide, and the slide and bracket are detachably connected to allow for the replacement of slides with different content.
[0003] However, in traditional projection devices, the support has many components, and the connection between the components is relatively complex, making it inconvenient to replace the projection sheet. Utility Model Content
[0004] This application provides a slide holder and a projection device.
[0005] In a first aspect, this application provides a slide holder, which includes a mounting bracket, a slide, and a limiting cover. The mounting bracket has a mating portion. The slide is disposed on the mounting bracket, with one side of the slide exposed through the mounting bracket. The limiting cover is connected to the mounting bracket and together with the mounting bracket clamps the slide, with the other side of the slide exposed through the limiting cover. The limiting cover includes a fixing portion and a limiting portion, which are elastically connected to the fixing portion. The limiting portion is detachably connected to the mating portion and presses against a portion of the slide.
[0006] In some optional embodiments, the limiting cover includes two limiting parts, each of which is elastically connected to a fixing part, and the two limiting parts are spaced apart; the mounting bracket is provided with two mating parts, and the two mating parts are provided in a one-to-one correspondence with the two limiting parts.
[0007] In some optional embodiments, the mounting bracket is provided with a first light-transmitting channel, through which part of the structure of the slide is exposed; the limiting cover includes two fixing parts, which are spaced apart, and each limiting part is located between the two fixing parts. The spaced-apart limiting parts and the spaced-apart fixing parts together define a second light-transmitting channel, and the axial direction of the second light-transmitting channel is consistent with the axial direction of the first light-transmitting channel.
[0008] In some optional embodiments, the limiting part and the fixing part are flush with each other on one side of the projection sheet. Under the push of the projection sheet, the limiting part is displaced in a direction parallel to the axis of the second light-transmitting channel to disengage from the mating part.
[0009] In some optional embodiments, the limiting part includes a connecting body and a limiting buckle that are connected to each other. The connecting body is elastically connected to the fixing part, and the limiting buckle is engaged with the mating part.
[0010] In some optional embodiments, the limiting part further includes an abutting protrusion, which is connected to the end of the connecting body away from the limiting buckle. The abutting protrusion protrudes relative to the connecting body and abuts against the projection sheet.
[0011] In some optional embodiments, the limiting cover further includes an elastic part, which is connected between the fixed part and the limiting part. The elastic part undergoes elastic deformation under the action of external force so that the limiting part is elastically connected to the fixed part.
[0012] In some optional embodiments, the limiting part, the elastic part, and the fixing part are connected in sequence and jointly define a first buffer groove, and the limiting part and the fixing part jointly define the opening of the first buffer groove; and / or the limiting part, the elastic part, and the fixing part are connected in sequence, the elastic part has a bent structure, the limiting part and the elastic part jointly define a second buffer groove, and the fixing part and the elastic part jointly define a third buffer groove.
[0013] In some optional embodiments, the slide holder further includes a transmission component, which is arranged around the slide and has a third light-transmitting channel through which at least a portion of the slide's structure is exposed.
[0014] Secondly, this application provides a projection device, which includes a housing, a light source module and a projection sheet holder as described above. The housing is provided with a light emission window; the light source module is located inside the housing and is used to emit projection light; the projection sheet holder is detachably connected to the housing, and when the projection sheet holder is installed in the housing, the projection sheet holder is located between the light emission window and the light source module.
[0015] This application provides a slide holder, which includes a mounting bracket, a slide, and a limiting cover. The limiting cover and the mounting bracket are connected to each other and are located on opposite sides of the slide, respectively, together clamping the slide. The mounting bracket has a mating part, and the limiting cover includes a fixing part and a limiting part elastically connected to the fixing part. The limiting part and the mating part are mated to connect the limiting cover to the mounting bracket, and the limiting part holds the slide against the mounting bracket. The limiting part abuts against a portion of the slide structure to press against the portion of the slide structure. One side of the slide has a portion exposed relative to the limiting cover, and the other side has a portion exposed relative to the mounting bracket. That is, the two sides of the slide with partial structures are exposed relative to the mounting bracket and the limiting cover, respectively, so that projection light can be transmitted to the slide, and at least part of the projection light passes through the slide to form a projection pattern.
[0016] In this embodiment, the limiting part of the limiting portion and the mating part of the mounting bracket are detachably connected. With the limiting cover connected to the mounting bracket, an external force can be applied to the limiting portion via the projector to release the connection between the limiting portion and the mating part during the movement of the limiting portion, thus completing the disassembly of the limiting cover and the mounting bracket. Subsequently, the projector can be removed from the mounting bracket for replacement of the entire or partial components. In this application, the limiting portion and the fixing portion are elastically connected. Under external force, the limiting portion can undergo elastic deformation, allowing the user to easily release the connection between the limiting cover and the mounting bracket by moving the limiting portion, thereby releasing the clamping effect of the mounting bracket and the limiting cover on the projector. The entire disassembly process is relatively simple and improves the efficiency of replacing the projector. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the projection device provided in the embodiments of this application.
[0019] Figure 2 yes Figure 1 A schematic diagram showing the positional relationships between the various components of the projection device.
[0020] Figure 3 This is a schematic diagram of the structure of the slide holder provided in the embodiment of this application.
[0021] Figure 4 yes Figure 3 The diagram shows the assembled structure of the various components of the slide holder.
[0022] Figure 5 yes Figure 3 The diagram shows a first structural schematic of the limiting cover for the slide holder.
[0023] Figure 6 yes Figure 5 The diagram shows the structure of the limiting buckle of the limiting cover.
[0024] Figure 7 yes Figure 3 The diagram shows a second structural design of the limiting cover for the slide holder.
[0025] Figure 8 yes Figure 3 The diagram shows a slide holder equipped with a transmission component.
[0026] Figure 9 yes Figure 8 The diagram shows the structural schematic of the stepped surface of the transmission component.
[0027] Figure 10 yes Figure 8 The diagram shows the structure of the transmission component and mounting bracket after assembly.
[0028] Figure 11 yes Figure 8 The diagram shows the structure of the notch on the mounting bracket.
[0029] Reference numerals: 1000, Projection device; 900, Housing; 910, Through-passage; 920, Light-emitting window; 800, Light source module; 700, Projection lens; 600, Converging assembly; 610, First convex lens; 620, Second convex lens; 100, Slide holder; 10, Mounting bracket; 11, First light-transmitting channel; 12, Notch; 13, Mating part; 20, Slide; 22, Film; 23, Protective sheet; 30, Limiting cover; 31, Fixing part; 311, First... 312. Fixed part, 32. Second fixed part, 32. Limiting part, 321. Connecting end, 322. Force-bearing end, 323. Connecting body, 324. Limiting buckle, 325. Abutting protrusion, 328. First limiting part, 329. Second limiting part, 33. Second light-transmitting channel, 34. Deformation space, 35. First buffer groove, 36. Second buffer groove, 37. Third buffer groove, 38. Elastic part, 40. Transmission component, 41. Third light-transmitting channel, 42. Tooth, 43. Step surface. Detailed Implementation
[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.
[0031] Please see Figure 1 and Figure 2This application provides a slide holder 100 and a projection device 1000 configured with the slide holder 100. The projection device 1000 is used to form a projection pattern on a projection surface such as a screen, wall, or floor for conveying information or attracting crowds. The projection device 1000 can also use goods or exhibits as projection targets to improve the display effect. The projection pattern formed by the projection device 1000 can remain unchanged on the projection surface or other projection objects. The projection pattern can also be in motion. As an example, the projection device 1000 is mounted on an application platform via a drive device (such as a swing arm or robotic arm). When the projection device 1000 is in operation, it can be driven by the drive device to move, thereby changing the position of the projection pattern on the projection surface or moving the projection pattern between multiple projection surfaces. As another example, when the projection device 1000 is in operation, the projection device 1000 is stationary relative to the application environment, and the projection light source inside the projection device 1000 is in motion so that the projection pattern is in a state of continuous motion on the projection surface. In this example, the projection device 1000 may include a starry sky lamp, and the projection content in the projection pattern formed by it may be a small light spot, such as a snowflake shape or a polka dot shape, to form a dynamic starry sky effect.
[0032] In this embodiment, the projection device 1000 further includes a housing 900, a slide holder 100, and a light source module 800. The housing 900 has a hollow structure and a through-channel 910 that connects the interior of the housing 900 to the outside. The slide holder 100 is independent of the housing 900 and may include a slide 20, which serves as a carrier for the projected content. The slide holder 100 can pass through the through-channel 910 and be installed in the housing 900, so that most of the structure of the slide holder 100 (such as the slide 20) is located inside the housing 900. The light source module 800 is located inside the housing 900 and is used to emit projection light. The housing 900 is provided with a light emission window 920, which connects the inside of the housing 900 with the outside. When the projection sheet holder 100 is installed on the housing 900, the projection sheet holder 100 is approximately located between the light emission window 920 and the light source module 800. The projection sheet 20 on the projection sheet holder 100 and the light emission window 920 are located sequentially on the optical path of the projection light.
[0033] In practical applications, the light source module 800 emits projection light and transmits it to the projection sheet 20. After passing through the projection sheet 20, the projection light forms a projection beam, which is then transmitted out of the housing 900 via the light-emitting window 920 to form a projection pattern on the projection surface. In some embodiments, the projection device 1000 further includes a projection lens 700, which is mounted on the light-emitting window 920. The projection beam is transmitted through the projection lens 700 to the projection surface. The projection lens 700 can shape and converge the projection beam to improve the projection effect of the projection device 1000. In this embodiment, the projection sheet holder 100 is detachably mounted on the housing 900. When it is necessary to change the projection content, the projection sheet holder 100 can be pulled out of the housing 900 through the through-channel 910 and gradually removed from the housing 900, allowing for the replacement of different projection sheets 20.
[0034] In this embodiment, the projection device 1000 may further include a converging component 600. The converging component 600 is disposed in the optical path of the projection light emitted from the light source module 800 and the projection sheet 20. The converging component 600 is used to converge the projection light emitted from the light source module 800, so that the projection light is more concentrated, the loss of projection light is reduced, and the brightness of the projection pattern is improved, so that the projection device 1000 has a better projection effect. In this embodiment, the converging component 600 includes at least two convex lenses, which are arranged sequentially and spaced apart in the optical path of the projection light between the light source module 800 and the projection sheet 20. The two convex lenses include a first convex lens 610 and a second convex lens 620. The first convex lens 610 is located between the second convex lens 620 and the light source module 800. The first convex lens 610 has a strong converging ability. The first convex lens 610 is closer to the light source module 800 than the second convex lens 620. The first convex lens 610 can converge the projection light with a short optical path, which can reduce the scattering of the projection light. The second convex lens 620, building upon the significant converging effect of the first convex lens 610, further converges the projected light. In this embodiment, the two convex lenses converge the projected light twice, maximizing its utilization and minimizing light loss. In other embodiments, the converging assembly 600 may include three or more convex lenses, and may also include other optical elements with light-convexity functions, such as reflectors or curved mirrors. In this embodiment, the light source module 800 may include LED beads or laser lights. The LED beads may be multi-color LED beads so that the projected light emitted by the light source module 800 has multiple colors that can be switched, enriching the visual effect of the projected pattern.
[0035] Please see Figure 3In this embodiment, the slide holder 100 includes not only the slide 20 mentioned above, but also a mounting bracket 10 and a limiting cover 30. The mounting bracket 10 roughly forms the structural outline of the slide holder 100, and the slide holder 100 is mounted on the mounting bracket 10. The limiting cover 30 is also mounted on the mounting bracket 10, and the limiting cover 30 and the slide 20 are roughly located on the same side of the mounting bracket 10. The limiting cover 30 is connected to the mounting bracket 10, and the limiting cover 30 and the mounting bracket 10 can jointly clamp the slide 20, so that the slide 20 is stable relative to the mounting bracket 10, ensuring the projection effect. In this embodiment, the mounting bracket 10 and the limiting cover 30 can directly abut against the opposite sides of the slide 20 to clamp the slide 20. The mounting bracket 10 (or the limiting cover 30) can also indirectly abut against the slide 20, for example, by setting other components between the mounting bracket 10 and the slide 20, and the mounting bracket 10 indirectly abuts against the side of the slide 20 away from the limiting cover 30 through other components.
[0036] In this embodiment, the mounting bracket 10 is provided with a first light-transmitting channel 11. When the projection sheet 20 is mounted on the mounting bracket 10, at least a portion of the structure of the projection sheet 20 is exposed through the first light-transmitting channel 11. The first light-transmitting channel 11 is a hole-like or groove-like structure with a certain space to allow light to pass through. The projection sheet 20 can be located inside or outside the first light-transmitting channel 11, depending on other components of the projection sheet bracket 100 and projection requirements in this embodiment.
[0037] Please see Figure 4 In this embodiment, the mounting bracket 10 is provided with a mating part 13, and the limiting cover 30 includes a fixing part 31 and a limiting part 32 connected to each other. The limiting part 32 is mated and connected with the mating part 13 to realize the connection between the mounting bracket 10 and the limiting cover 30. In this embodiment, the limiting part 32 is elastically connected to the fixing part 31, and the limiting part 32 can move relative to the fixing part 31 under the action of external force to change the relative position state of the two. Specifically, when the limiting cover 30 is connected to the mounting bracket 10, one end of the limiting part 32 is connected to the mating part 13 to install the limiting cover 30 on the mounting bracket 10, and the other end abuts against a part of the structure of the projection sheet 20 to restrict the movement of the projection sheet 20, so that the projection sheet 20 can contact the limiting part 32 and push against the limiting part 32.
[0038] In possible application scenarios, the slide 20 can push against the limiting part 32 under the action of external force. For example, the user can use a tool or finger to apply external force to the part of the slide 20 exposed to the mounting bracket 10. The slide 20 will be displaced and push against the limiting part 32. The limiting part 32 is elastically connected to the fixing part 31. Under the action of external force, the limiting part 32 can undergo elastic deformation. Thus, the limiting part 32 can move relative to the fixing part 31 and the mounting bracket 10 under the action of external force, so that the limiting part 32 can separate from the mating part 13 and the connection relationship can be released. This will release the connection relationship between the limiting cover 30 and the mounting bracket 10, and then the limiting cover 30 can be removed to release the limiting effect of the limiting cover 30 on the slide 20. The slide 20 or the component in the slide 20 used to record the projected content can be replaced, so that the updated slide 20 forms a different projection pattern under the projection of the projection light.
[0039] Please see Figure 3 In this embodiment, the projection sheet 20 includes a film 22 and two protective sheets 23. The two protective sheets 23 are located on opposite sides of the film 22 and clamp the film 22 to protect it. The size of the protective sheets 23 is larger than the size of the film 22 so that the two protective sheets 23 can encapsulate the film 22. Therefore, in this embodiment, the size of the projection sheet 20 should be understood as the size of the protective sheet 23. In this embodiment, the protective sheet 23 is a light-transmitting structure, such as transparent glass. The protective sheet 23 can be selected from optical elements with optical functions, such as diffraction gratings, according to the requirements of the projection effect. In this embodiment, the protective sheet 23 has a certain degree of rigidity so that the projection sheet 20 can withstand a certain external force and can push against the limiting part 32, causing the limiting part 32 to move.
[0040] In summary, the slide holder 100 provided in this embodiment includes a mounting bracket 10, a slide 20, and a limiting cover 30. The limiting cover 30 and the mounting bracket 10 are connected to each other, and the limiting cover 30 and the mounting bracket 10 are located on opposite sides of the slide 20, respectively. The limiting cover 30 and the mounting bracket 10 together hold the slide 20. The mounting bracket 10 is provided with a mating part 13, and the limiting cover 30 includes a fixing part 31 and a limiting part 32 movably connected to the fixing part 31. In this embodiment, one end of the limiting part 32 is mated and connected to the mating part 13 to connect the limiting cover 30 to the mounting bracket 10, and the other end of the limiting part 32 holds the slide 20 against the mounting bracket 10. The mounting bracket 10 is provided with a first light-transmitting channel 11. At least a portion of the structure of the projection sheet 20 is exposed through the first light-transmitting channel 11. One end of the limiting part 32 abuts against a portion of the structure of the projection sheet 20 to cover a portion of the structure of the projection sheet 20. The projection sheet 20 has a portion exposed relative to the limiting cover 30, and the front and back sides of the projection sheet 20 with a portion of the structure are exposed relative to the mounting bracket 10 and the limiting cover 30, respectively, so that the projection light is transmitted to the projection sheet 20, and at least a portion of the projection light is transmitted through the projection sheet 20 to form a projection beam. The projection beam can be transmitted out through the first light-transmitting channel 11.
[0041] In this embodiment, the limiting part 32 and the fixing part 31 are elastically connected. When the limiting cover 30 is connected to the mounting bracket 10, an external force can be applied to the limiting part 32 by the projection sheet 20 to make the limiting part 32 move relative to the fixing part 31. The connection between the limiting part 32 and the mating part 13 is released during the movement of the limiting part 32, thereby completing the disassembly of the limiting cover 30 and the mounting bracket 10. Subsequently, the projection sheet 20 can be removed from the mounting bracket 10 for replacement of the whole or part of the components. In this embodiment, the limiting part 32 is a movable and adjustable structure. The user can release the connection between the limiting cover 30 and the mounting bracket 10 by moving the limiting part 32, thereby releasing the clamping effect of the mounting bracket 10 and the limiting cover 30 on the projection sheet 20. The entire disassembly process is relatively simple and can improve the efficiency of replacing the projection sheet 20.
[0042] Please see Figure 4In this embodiment, the limiting cover 30 includes two limiting parts 32, which are respectively connected to the fixing part 31. The two limiting parts 32 are arranged at a distance from each other, and each limiting part 32 can cooperate with the projection sheet 20 and move relative to the fixing part 31 under the action of the external force applied by the projection sheet 20. Correspondingly, the mounting bracket 10 is provided with two mating parts 13, which are arranged at a distance from each other on the mounting bracket 10. The two mating parts 13 are arranged and connected to the two limiting parts 32 one-to-one to connect the limiting cover 30 and the mounting bracket 10. In this embodiment, the two limiting parts 32 are located on both sides of the limiting cover 30, so that the limiting cover 30 is more stably connected to the mounting bracket 10. Therefore, the relative position between the limiting cover 30 and the mounting bracket 10 is not easily changed, improving the limiting effect of the limiting cover 30 on the projection sheet 20. With the slide 20 restricted to the mounting bracket 10 by the limiting cover 30, the two mating parts 13 are approximately located on both sides of the slide 20 in the circumferential direction, so that the limiting cover 30 spans the slide 20. The limiting cover 30 restricts the slide 20 to a high degree, thereby improving the stability of the position of the slide 20.
[0043] Please see Figure 5 In this embodiment, the limiting cover 30 includes two fixing parts 31, which are spaced apart. Each limiting part 32 is located between the two fixing parts 31, and each limiting part 32 is elastically connected to both fixing parts 31. The two limiting parts 32 are spaced apart relative to each other. When the limiting cover 30 is mounted on the mounting bracket 10, the projection sheet 20 pushes against the limiting part 32, causing the limiting part 32 to move relative to the fixing parts 31 on both sides and separate from the corresponding mating part 13 to disengage the connection. In other embodiments, the number of fixing parts 31 may be one or more. As an example, the limiting cover 30 includes one fixing part 31, and two limiting parts 32 are respectively connected to both sides of the fixing part 31.
[0044] In this embodiment, two fixing parts 31 and two limiting parts 32 are laid flat on the side of the projection sheet 20 away from the mounting bracket 10, so that the limiting cover 30 has a compact structure and a small volume. This avoids the limiting cover 30 increasing the space occupied by the projection sheet bracket 100, reduces the collision between the limiting cover 30 and other components in the housing 900, and facilitates the projection sheet bracket 100 passing through the through-channel 910. In this embodiment, the two fixing parts 31 and the two limiting parts 32, which are arranged at intervals, jointly define the second light-transmitting channel 33. Specifically, in this embodiment, the two fixing parts 31 are defined as the first fixing part 311 and the second fixing part 312, and the two limiting parts 32 are defined as the first limiting part 328 and the second limiting part 329. In the circumferential direction of the second light-transmitting channel 33, the first limiting part 328, the first fixing part 311, the second limiting part 329, and the second fixing part 312 are arranged sequentially at intervals to jointly define the second light-transmitting channel 33. In this embodiment, the axial direction of the second light-transmitting channel 33 is consistent with the axial direction of the first light-transmitting channel 11. After the projected light passes through the second light-transmitting channel 33, it is transmitted to the projection sheet 20. After passing through the projection sheet 20, it forms a projection beam. The projection beam can be transmitted out of the mounting bracket 10 through the first light-transmitting channel 11.
[0045] Please see Figure 3 and Figure 5In this embodiment, the limiting part 32 can move relative to the fixed part 31 under the pushing action of the projection sheet 20. The limiting part 32 can be displaced in a direction parallel to the axis of the second light-transmitting channel 33 to disengage from the mating part 13. Specifically, the two ends of the limiting part 32 are defined as the connecting end 321 and the force-receiving end 322, respectively. The connecting end 321 and the force-receiving end 322 are located at the two ends of the limiting part 32, so the connecting end 321 and the force-receiving end 322 can be understood as the two ends of a lever. The connecting end 321 is located at the end of the limiting part 32 away from the second light-transmitting channel 33, and the connecting end 321 is detachably connected to the mating part 13. The force-receiving end 322 is located at the end of the limiting part 32 close to the second light-transmitting channel 33, and the force-receiving end 322 abuts against the projection sheet 20. During actual disassembly, the user applies an external force to the projection sheet 20 from the side away from the limiting cover 30. The direction of the external force is approximately parallel to the direction defined by the axis of the second light-transmitting channel 33. After being subjected to the force, the projection sheet 20 tends to move towards the limiting cover 30 and pushes against the force-receiving end 322. Under the action of the external force, the force-receiving end 322 moves away from the mounting bracket 10. During the movement, the force-receiving end 322 can generate a displacement parallel to the axis of the second light-transmitting channel 33. Under the "prying" of the force-receiving end 322, the connecting end 321 moves towards the mounting bracket 10. During the movement, the connecting end 321 can generate a displacement parallel to the axis of the second light-transmitting channel 33, thereby separating from the corresponding mating part 13 and disengaging the connection. In this embodiment, there is less hard contact between the limiting part 32 and the mating part 13 during the disassembly of the limiting cover 30, and the disassembly process is relatively gentle. The user does not need to apply a large force, which can reduce the structural wear of the mounting bracket 10 and the limiting cover 30.
[0046] Please see Figure 5 and Figure 6In this embodiment, the limiting part 32 and the mating part 13 are engaged. Specifically, the limiting part 32 includes a connecting body 323 and a limiting buckle 324. The limiting buckle 324 is connected to the connecting body 323 and extends relative to the connecting body 323 toward the mounting bracket 10 so as to engage with the mating part 13 on the mounting bracket 10. The connecting body 323 is elastically mounted on the fixing part 31. In this embodiment, the limiting buckle 324 is located at the connecting end 321 of the limiting part 32, and the limiting buckles 324 of the two limiting parts 32 are respectively located on both sides of the limiting cover 30. Correspondingly, the mating part 13 is a through hole or groove formed on the mounting bracket 10. When the limiting cover 30 is connected to the mounting bracket 10, the limiting buckle 324 of each limiting part 32 is embedded in the corresponding groove-type or through-hole-type mating part 13 to complete a detachable engagement connection, and the engagement method is relatively simple. In some other embodiments, each limiting portion 32 may include two or more limiting latches 324 to improve the stability of the connection between the limiting latches 324 and the mating portion 13. In other embodiments, the limiting portion 32 and the mating portion 13 may be magnetically connected; for example, the mating portion 13 may include a magnetic element, and the limiting latches 324 of the limiting portion 32 may be replaced by a magnetic element.
[0047] In this embodiment, the limiting part 32 further includes an abutment protrusion 325, which is connected to the end of the connecting body 323 away from the limiting buckle 324. The abutment protrusion 325 is located at the force-bearing end 322 of the limiting part 32, and protrudes relative to the connecting body 323 in a direction close to the projection sheet 20, so that the abutment protrusion 325 can abut against the projection sheet 20. With this configuration, the surface of the projection sheet 20 can be prevented from being in contact with the surface of the connecting body 323. The projection sheet 20 can be effectively and easily pushed by the abutment protrusion 325 protruding relative to the connecting body 323 to cause displacement of the force-bearing end 322 and the connecting end 321 in a direction parallel to the axis of the second light-transmitting channel 33, so that the limiting part 32 can move relative to the fixing part 31 and the mounting bracket 10, and separate from the corresponding mating part 13 to disengage the connection.
[0048] Please see Figure 5In this embodiment, the limiting cover 30 further includes an elastic portion 38, which is connected between the limiting portion 32 and the fixing portion 31, so that the limiting portion 32 is elastically connected to the fixing portion 31. Specifically, in this embodiment, each limiting portion 32 is provided with two elastic portions 38. One elastic portion 38 is connected between the first fixing portion 311 and the limiting portion 32, and the other elastic portion 38 is connected between the second fixing portion 312 and the limiting portion 32. In this embodiment, the elastic portion 38 has an elastic deformation capability, that is, the elastic portion 38 can deform under the action of external force to bring the two limiting portions 32 closer to each other, and after the external force is removed, the elastic portion 38 can restore its deformation to move the two limiting portions 32 away from each other. In this embodiment, the fixing part 31 and the limiting part 32 are spaced apart to form a deformation space 34. The elastic part 38 is located in the deformation space 34. When the projection sheet 20 pushes against the limiting part 32, the elastic part 38 deforms in the deformation space 34, so that the limiting part 32 can move more easily relative to the fixing part 31 and the mounting bracket 10.
[0049] In this embodiment, the limiting part 32, the fixing part 31, and the elastic part are integrally formed. The limiting cover 30 is made of plastic or resin. Plastic or resin is lightweight and has sufficient strength to effectively press against the projection sheet 20 and engage with the mounting bracket 10. In this embodiment, the elastic part 38 has elastic deformation capability, which is related to the structural form of the elastic part 38, the fixing part 31, and the limiting part 32, or to the structure of the elastic part 38 itself. As an example, please refer to... Figure 7 The limiting part 32, the elastic part 38, and the fixing part 31 are sequentially connected and together define the first buffer groove 35. The elastic part 38 has a small structure and is connected between the limiting part 32 and the fixing part 31 so that the limiting part 32 and the fixing part 31 form an integral structure. This results in a lower strength at the connection between the limiting part 32 and the fixing part 31, allowing deformation under external force, thus giving the elastic part 38 elastic deformation capability. In this example, the limiting part 32 and the fixing part 31 together define the opening of the first buffer groove 35. The opening can be located at the outer periphery of the limiting cover 30 or can communicate with the second light-transmitting channel 33. As another example, please refer to... Figure 5 and Figure 6The limiting part 32, the elastic part 38, and the fixing part 31 are connected in sequence. The elastic part 38 has a bending structure, so the elastic part 38 itself has great elasticity and can deform. In this example, the limiting part 32 and the elastic part 38 jointly define the second buffer groove 36, and the fixing part 31 and the elastic part 38 jointly define the third buffer groove 37. One of the openings of the second buffer groove 36 and the third buffer groove 37 is located at the outer periphery of the limiting cover 30, and the other communicates with the second light-transmitting channel 33. In this embodiment, the opening of the second buffer groove 36 is located at the outer periphery of the limiting cover 30, and the opening of the third buffer groove 37 communicates with the second light-transmitting channel 33.
[0050] In this embodiment, the elastic part 38 can be configured in the shape of a "C", "S", or "Ω" to make it elastic, so that the limiting part 32 can move relative to the fixing part 31. In other embodiments, the limiting part 32 and the fixing part 31 are provided separately, and the slide holder 100 also includes an elastic element (such as a spring, rubber pad, etc.) connected between the limiting part 32 and the fixing part 31, so that the limiting part 32 can move relative to the fixing part 31.
[0051] Please see Figure 8 In this embodiment, the slide holder 100 includes a transmission member 40, which is rotatably disposed within the first light-transmitting channel 11 of the mounting bracket 10. The slide 20 is mounted on the transmission member 40 and rotates with the transmission member 40. The projection device 1000 in this embodiment also includes a drive mechanism (not shown in the figure), which is disposed inside the housing 900 and is connected to the transmission member 40 to drive the transmission member 40 and the slide 20 to rotate. In this embodiment, the transmission member 40 is provided with a third light-transmitting channel 41, through which at least a portion of the structure of the slide 20 is exposed. In this embodiment, the slide 20 is embedded within the third light-transmitting channel 41 to ensure a stable connection between the transmission member 40 and the slide 20. In practical applications, the slide 20 is mounted on the transmission member 40 and rotates with it. The pattern formed by the projection beam on the projection surface is in a rotating state. When the content of the projection pattern is a small light spot, a dynamic starry sky effect can be formed on the projection surface, increasing the atmosphere of the application environment.
[0052] Please see Figure 9In this embodiment, the inner wall of the third light-transmitting channel 41 is a non-rotating surface. When the projection sheet 20 is embedded in the third light-transmitting channel 41, the projection sheet 20 cannot rotate relative to the transmission member 40. In this embodiment, the third light-transmitting channel 41 is a stepped hole, meaning it includes at least two segments with the same axis and different inner diameters to form a step. This results in a stepped surface 43 inside the third light-transmitting channel 41. The projection sheet 20 is stacked on the stepped surface 43, with its edge structure fitting or contacting the stepped surface 43. The center portion of the projection sheet 20 is exposed through the third light-transmitting channel 41, allowing for stable mounting of the projection sheet 20 to the transmission member 40. In this embodiment, the transmission member 40 can be a metal structure with good thermal conductivity (such as copper, copper alloy, or aluminum alloy). The large contact area between the projection sheet 20 and the transmission member 40 promotes heat dissipation from the projection sheet 20, preventing heat generated by the projection sheet 20 under prolonged illumination from projected light from accumulating inside the projection sheet 20. In this embodiment, when the projection sheet 20 is mounted on the transmission member 40, the transmission member 40 and the limiting cover 30 together clamp the projection sheet 20. That is, in this embodiment, the mounting bracket 10 does not directly abut against the projection sheet 20. The mounting bracket 10 indirectly abuts against the projection sheet 20 through the transmission member 40 and together with the limiting cover 30 clamps the projection sheet 20.
[0053] In this embodiment, the third light-transmitting channel 41 and the first light-transmitting channel 11 have multiple relationships. As an example, if one port of the third light-transmitting channel 41 away from the limiting cover 30 is located inside the first light-transmitting channel 11, then in this example, the projection light passes through the second light-transmitting channel 33 and is conducted into the third light-transmitting channel 41. The projection light is transmitted through the projection sheet 20 to form a projection beam. The projection beam is conducted out of the third light-transmitting channel 41 and enters the first light-transmitting channel 11, and then is conducted out of the first light-transmitting channel 11 to conduct out the projection sheet support 100.
[0054] Please see Figure 10 In this embodiment, the end of the transmission member 40 away from the limiting cover 30 passes through and extends out of the first light-transmitting channel 11. The edge structure of the port of the first light-transmitting channel 11 is arranged around the outer periphery of the end of the transmission member 40. One port of the third light-transmitting channel 41 of the transmission member 40 away from the limiting cover 30 is located outside the first light-transmitting channel 11. In this embodiment, the projection light passes through the second light-transmitting channel 33 and is conducted into the third light-transmitting channel 41. The projection light is transmitted through the projection sheet 20 to form a projection beam. The projection beam is conducted out of the third light-transmitting channel 41 to be directly conducted out of the projection sheet support 100. In this embodiment, the projection beam should be understood as passing through both the third light-transmitting channel 41 and the first light-transmitting channel 11 simultaneously. The difference is that the projection beam directly passes through the third light-transmitting channel 41 and indirectly passes through the first light-transmitting channel 11.
[0055] Please see Figure 11 In this embodiment, the transmission component 40 is a gear structure, with multiple teeth 42 arranged sequentially on its outer periphery to give it a gear-like shape. The driving mechanism may include a motor and a drive gear. In this embodiment, the first light-transmitting channel 11 includes at least two segments, which are coaxial and have different inner diameters to form a limiting step surface (not shown in the figure) within the light-transmitting channel. The teeth 42 of the transmission component 40 abut against the limiting step surface to limit the transmission component 40 within the first light-transmitting channel 11. In this embodiment, the mounting bracket 10 has a notch 12 that communicates with the first light-transmitting channel 11 via its inner wall. A portion of the continuous teeth 42 on the gear-type transmission component 40 extends out of the first light-transmitting channel 11 through the notch 12 and is connected to the driving mechanism. That is, the extended continuous teeth 42 mesh with the drive gear of the driving mechanism. The drive gear rotates under the drive of the motor, causing the transmission component 40 and the projection sheet 20 to rotate.
[0056] This embodiment provides a slide holder 100, which includes a mounting bracket 10, a slide 20, and a limiting cover 30. The limiting cover 30 and the mounting bracket 10 are connected to each other and are located on opposite sides of the slide 20. The limiting cover 30 and the mounting bracket 10 together hold the slide 20. The mounting bracket 10 is provided with a mating part 13. The limiting cover 30 includes a fixing part 31 and a limiting part 32 movably connected to the fixing part 31. One end of the limiting part 32 is mated with the mating part 13 to connect the limiting cover 30 to the mounting bracket 10, and the other end of the limiting part 32 holds the slide 20 against the mounting bracket 10. The mounting bracket 10 is provided with a first light-transmitting channel 11. At least a portion of the structure of the projection sheet 20 is exposed through the first light-transmitting channel 11. One end of the limiting part 32 abuts against a portion of the structure of the projection sheet 20 to cover a portion of the structure of the projection sheet 20. The projection sheet 20 has a portion exposed relative to the limiting cover 30, and the front and back sides of the projection sheet 20 with a portion of the structure are exposed relative to the mounting bracket 10 and the limiting cover 30, respectively, so that: the projection light is transmitted to the projection sheet 20, at least a portion of the projection light is transmitted through the projection sheet 20 to form a projection beam, and the projection beam can be transmitted out through the first light-transmitting channel 11.
[0057] In this embodiment, the limiting part 32 is adjustable. With the limiting cover 30 connected to the mounting bracket 10, an external force can be applied to the limiting part 32 via the projection sheet 20 to make the limiting part 32 move relative to the fixed part 31. The connection between the limiting part 32 and the mating part 13 is released during the movement of the limiting part 32, thereby completing the disassembly of the limiting cover 30 and the mounting bracket 10. Subsequently, the projection sheet 20 can be removed from the mounting bracket 10 for replacement of the entire or part of the components. In this embodiment, the limiting part 32 is a movable and adjustable structure. The user can release the connection between the limiting cover 30 and the mounting bracket 10 by moving the limiting part 32, thereby releasing the clamping effect of the mounting bracket 10 and the limiting cover 30 on the projection sheet 20. The entire disassembly process is relatively simple and can improve the efficiency of replacing the projection sheet 20.
[0058] In this application specification, certain terms are used to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to"; "generally" means that those skilled in the art can solve the technical problem within a certain margin of error and basically achieve the technical effect.
[0059] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0060] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or merely surface contact. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A slide holder, characterized in that, include: Mounting bracket, wherein the mounting bracket is provided with a mating part; A projection sheet, wherein the projection sheet is disposed on the mounting bracket, and one side of the projection sheet is exposed through the mounting bracket; as well as A limiting cover is connected to the mounting bracket and together with the mounting bracket clamps the projection sheet, with the other side of the projection sheet exposed through the limiting cover; the limiting cover includes a fixing part and a limiting part, the limiting part is elastically connected to the fixing part, the limiting part is configured to elastically deform under the action of external force, the limiting part is detachably connected to the mating part, and the limiting part presses against part of the projection sheet.
2. The slide holder as described in claim 1, characterized in that, The limiting cover includes two limiting parts, each of which is elastically connected to a fixing part, and the two limiting parts are spaced apart. The mounting bracket is provided with two mating parts, and the two mating parts are provided in a one-to-one correspondence with the two limiting parts.
3. The slide holder as described in claim 2, characterized in that, The mounting bracket is provided with a first light-transmitting channel, through which part of the structure of the projection sheet is exposed. The limiting cover includes two fixing parts, which are spaced apart. Each limiting part is located between the two fixing parts. The spaced-apart limiting parts and the spaced-apart fixing parts together define a second light-transmitting channel. The axial direction of the second light-transmitting channel is consistent with the axial direction of the first light-transmitting channel.
4. The slide holder as described in claim 3, characterized in that, The limiting part and the fixing part are flush with each other on one side of the projection sheet. Under the push of the projection sheet, the limiting part is displaced in a direction parallel to the axis of the second light-transmitting channel to disengage from the mating part.
5. The slide holder as described in claim 1, characterized in that, The limiting part includes a connecting body and a limiting buckle that are connected to each other. The connecting body is elastically connected to the fixing part, and the limiting buckle is engaged with the mating part.
6. The slide holder as described in claim 5, characterized in that, The limiting part further includes an abutting protrusion, which is connected to the end of the connecting body away from the limiting buckle. The abutting protrusion protrudes relative to the connecting body and abuts against the projection sheet.
7. The slide holder as described in any one of claims 1 to 6, characterized in that, The limiting cover also includes an elastic part, which is connected between the fixed part and the limiting part. The elastic part undergoes elastic deformation under the action of external force so that the limiting part is elastically connected to the fixed part.
8. The slide holder as described in claim 7, characterized in that, The limiting part, the elastic part, and the fixing part are connected in sequence and together define the first buffer groove. The limiting part and the fixing part together define the opening of the first buffer groove. and / or The limiting part, the elastic part, and the fixing part are connected in sequence. The elastic part has a bending structure. The limiting part and the elastic part together define a second buffer groove, and the fixing part and the elastic part together define a third buffer groove.
9. The slide holder as described in any one of claims 1 to 6, characterized in that, The projection sheet support also includes a transmission component, which is arranged around the projection sheet. The transmission component has a third light-transmitting channel through which at least a portion of the structure of the projection sheet is exposed.
10. A projection device, characterized in that, include: The housing is provided with a light-emitting window; A light source module, located inside the housing and used to emit projected light; as well as The slide holder as described in any one of claims 1 to 9, wherein the slide holder is detachably connected to the housing, and when the slide holder is installed in the housing, the slide holder is located between the light-emitting window and the light source module.