Slide fit structure for lens cone assembly of integrated sleeve body
By designing the T-shaped sliding groove and symmetric sliding positioning structure on the integrated sleeve body, the stability and positioning accuracy problems caused by excessive gap between the sleeve and the lens are solved, the precise coordination of the lens is achieved, and the clarity and production efficiency of the projected image are improved.
Patent Information
- Application Number
- CN202422341934.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing integrated sleeve design has a large depth-to-draft ratio and lacks draft slope, which leads to difficulty in demoulding, low yield, and excessive gap between the sleeve and the lens, which affects the lens stability and axial positioning accuracy, resulting in dummy focus on the projector screen.
The sliding groove is designed with a T-shaped structure, and symmetrical sliding positioning structures are provided on both sides of the lens barrel, including T-shaped and L-shaped bumps, a gap is provided between the lens barrel and the sleeve, and the adjustment rod can be embedded in the through groove to ensure the precise fit between the lens barrel and the sleeve.
Achieve accurate coordination between the lens barrel and the sleeve, improve axial positioning accuracy, ensure the clarity of the projected picture, and improve the quality and production efficiency of the finished product.
Smart Images
Figure CN223065583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lens barrel assemblies, and particularly to a sliding fit structure of a lens barrel assembly for an integrated sleeve body. Background Art
[0002] In the design of an integrated sleeve, due to the large aspect ratio of the sleeve and the lack of an appropriate draft angle, it will cause difficulties in demolding, thereby reducing the yield rate and increasing the production cost. In addition, the lack of a draft angle may result in an excessive gap between the sleeve and the lens. This gap makes the commonly used concentric circle positioning method in the industry ineffective, and then causes the magnifying lens to shake radially. This shaking not only affects the stability of the lens, but also reduces the accuracy of axial positioning, and finally causes the image of the projection optical machine to be defocused.
[0003] Therefore, it is necessary to design a new structure to achieve precise fit between the lens barrel and the sleeve, ensure the accuracy of the lens, guarantee the clarity of the projection image, and thus improve the quality and production efficiency of the finished product. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a sliding fit structure of a lens barrel assembly for an integrated sleeve body.
[0005] To solve the above technical problems, the purpose of the utility model is achieved by the following technical solutions: A sliding fit structure of a lens barrel assembly for an integrated sleeve body is provided, including: a sliding groove provided on the integrated sleeve body and a sliding fit positioning structure provided on the lens barrel. The lens barrel is sleeved inside the integrated sleeve body, and the sliding fit positioning structure is embedded in the sliding groove, and a clearance space is provided between the outer side wall of the lens barrel and the inner side wall of the integrated sleeve body.
[0006] Its further technical solution is: The sliding groove includes a longitudinally arranged T-shaped groove; the T-shaped groove includes a transverse groove and a longitudinal groove, and the longitudinal groove communicates with the transverse groove.
[0007] Its further technical solution is: The sliding grooves are respectively provided on both sides of the integrated sleeve body; and the two sliding grooves are symmetrically arranged along the longitudinal axis of the integrated sleeve body.
[0008] Its further technical solution is: The sliding fit positioning structures are respectively provided on both sides of the lens barrel, and the two sliding fit positioning structures are symmetrically arranged along the longitudinal axis of the lens barrel.
[0009] Its further technical solution is as follows: The sliding and positioning structure includes a longitudinally arranged T-shaped convex block and several L-shaped convex blocks; the T-shaped convex block includes a longitudinal convex block and a transverse convex block, the longitudinal convex block is connected to the lens barrel; the transverse convex block is connected to the longitudinal convex block; several L-shaped convex blocks are respectively arranged on the upper end surface and the lower end surface of the longitudinal convex block, and the L-shaped convex blocks on the upper end surface of the longitudinal convex block and the L-shaped convex blocks on the lower end surface of the longitudinal convex block are symmetrically arranged along the transverse axis of the lens barrel.
[0010] Its further technical solution is as follows: The L-shaped convex block includes a longitudinal plate and a transverse plate, the longitudinal plate is connected to the longitudinal convex block, the transverse plate is connected to the transverse convex block, and the lower end of the longitudinal plate is connected to the transverse plate. One side of the longitudinal plate away from the longitudinal convex block contacts the bottom of the longitudinal groove; one side of the transverse plate away from the transverse convex block contacts the side wall of the transverse groove.
[0011] Its further technical solution is as follows: There are gaps between the upper end surface and the lower end surface of the longitudinal convex block and the side walls of the longitudinal groove respectively; there is a gap between one side of the transverse convex block away from the longitudinal convex block and the bottom of the transverse groove.
[0012] Its further technical solution is as follows: A through groove is provided on one side of the integral sleeve body, and the through groove communicates with the T-shaped groove.
[0013] Its further technical solution is as follows: An adjusting rod is provided on one side of the lens barrel, and the adjusting rod is embedded in the through groove.
[0014] Its further technical solution is as follows: One side of the adjusting rod is connected to the transverse convex block on one side of the lens barrel.
[0015] The beneficial effects of the present utility model compared with the prior art are as follows: By setting a sliding groove and a sliding and positioning structure, the sliding groove is set as a T-shaped structure and is symmetrically arranged; the sliding and positioning structure is provided with a T-shaped convex block and several L-shaped convex blocks, and the T-shaped convex block and several L-shaped convex blocks are symmetrically arranged, realizing the precise fit between the lens barrel and the sleeve, ensuring the accuracy of the lens, guaranteeing the clarity of the projection screen, and thus improving the quality and production efficiency of the finished product.
[0016] The following further describes the present utility model in conjunction with the drawings and specific embodiments. Description of the Drawings
[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic side view structure diagram of a sliding fit structure of a lens barrel assembly for an integrated sleeve body provided by an embodiment of the present utility model;
[0019] Figure 2 It is a schematic sectional view structure diagram of a sliding fit structure of a lens barrel assembly for an integrated sleeve body provided by an embodiment of the present utility model;
[0020] Figure 3 It is a schematic three - dimensional structure diagram of an integrated sleeve body provided by an embodiment of the present utility model Figure 1 ;
[0021] Figure 4 It is a schematic three - dimensional structure diagram of an integrated sleeve body provided by an embodiment of the present utility model Figure 2 ;
[0022] Figure 5 It is a schematic three - dimensional structure diagram of a lens barrel provided by an embodiment of the present utility model;
[0023] Explanation of the markings in the figure:
[0024] 1. Integrated sleeve body; 2. Lens barrel; 3. Adjusting rod; 4. Gap; 5. Avoidance gap; 6. Through groove; 7. T - shaped groove; 71. Longitudinal groove; 8. Transverse groove; 8. T - shaped protrusion; 81. Longitudinal protrusion; 82. Transverse protrusion; 9. L - shaped protrusion; 91. Longitudinal plate; 92. Transverse plate. Specific embodiments
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0026] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.
[0027] It should also be understood that the terms used in the description of the present utility model herein are merely for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the description of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.
[0028] It should be further understood that the term "and / or" used in the description of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0029] In the existing one-piece sleeve design, the depth-width ratio is large and there is a lack of draft angle, resulting in difficult demolding, low product yield and increased cost. In addition, the missing draft angle causes too large a gap 4 between the sleeve and the lens, making the concentric circle positioning fail, resulting in radial shaking of the magnifying lens, affecting stability and axial positioning accuracy, and ultimately causing the projection light machine picture to be defocused.
[0030] For this reason, the embodiment of the present utility model provides a sliding fit structure for a lens barrel assembly of a one-piece sleeve body, including a sliding groove provided on the sleeve body and a sliding fit positioning structure on the lens barrel 2. The sliding groove is of a T-shaped design, including a longitudinal and a transverse groove 8, and is symmetrically arranged on both sides of the sleeve body. Symmetric sliding fit positioning structures are also provided on both sides of the lens barrel 2, including T-shaped and L-shaped protrusions 9. A gap 4 is provided between the structures to ensure smooth sliding, and a through groove 6 is provided on one side of the sleeve and connected to the sliding groove. The adjusting rod 3 can be embedded in the through groove 6 to further enhance the flexibility of the structure; it can eliminate the large-size gap 4 caused by the draft angle, ensure the precise fit between the lens barrel 2 and the sleeve, improve the axial positioning accuracy, and thus ensure the clarity of the projection picture. At the same time, the multi-piece sliding fit plane design helps to accurately control the sliding fit accuracy, reduce the sliding fit movement resistance, and avoid the jamming phenomenon caused by the structural deformation during the molding process. This can improve the overall performance and reliability.
[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific embodiments.
[0032] Please refer to Figures 1 to 5 , a sliding fit structure for a lens barrel assembly of a one-piece sleeve body includes: a sliding groove provided on the one-piece sleeve body 1 and a sliding fit positioning structure provided on the lens barrel 2. The lens barrel 2 is sleeved inside the one-piece sleeve body 1, and the sliding fit positioning structure is embedded in the sliding groove, and a clearance space 5 is provided between the outer side wall of the lens barrel 2 and the inner side wall of the one-piece sleeve body 1.
[0033] In this embodiment, the combination of the sliding and positioning structure and the sliding groove ensures the stable positioning of the lens barrel 2 within the integral sleeve body 1, improving the accuracy of axial positioning; the design of the space gap 4 between the outer wall and the inner wall helps to eliminate the large-size gap 4 caused by the draft angle, ensuring the concentricity of the lens barrel 2; the cooperation of the sliding groove and the positioning structure makes the sliding movement smoother, reducing the movement resistance and enhancing the user experience; the design takes into account the avoidance space gap 5, which can effectively avoid the jamming phenomenon caused by the structural deformation during the molding process; by ensuring the precise fit between the lens barrel 2 and the sleeve, the clarity and overall performance of the projection image are improved.
[0034] In one embodiment, refer to Figures 1 to 4 , the above-mentioned sliding groove includes a longitudinally arranged T-shaped groove 7; the T-shaped groove 7 includes a transverse groove 8 and a longitudinal groove 71, and the longitudinal groove 71 communicates with the transverse groove 8.
[0035] In one embodiment, refer to Figures 1 to 4 , both sides of the above-mentioned integral sleeve body 1 are respectively provided with sliding grooves; and the two sliding grooves are symmetrically arranged along the longitudinal axis of the integral sleeve body 1.
[0036] The design of the T-shaped groove 7 allows the lens barrel 2 to slide freely in the longitudinal and transverse directions, enhancing the flexibility and adaptability of the structure; the symmetrical arrangement of the two sliding grooves along the longitudinal axis helps to evenly distribute the acting force, reduce the eccentric load, and improve the stability of the overall structure; the communication design of the longitudinal groove 71 and the transverse groove 8 provides a more precise guide, ensuring more accurate positioning of the lens barrel 2 during movement; the structure of the T-shaped groove 7 makes the installation and disassembly of the lens barrel 2 more convenient, simplifying the maintenance process; the sliding groove design optimizes the contact surface, reduces friction and wear, and extends the service life of the components.
[0037] In one embodiment, refer to Figures 1 to 2 、 Figure 5 , both sides of the lens barrel 2 are respectively provided with sliding and positioning structures, and the two sliding and positioning structures are symmetrically arranged along the longitudinal axis of the lens barrel 2.
[0038] In one embodiment, refer to Figure 1 Figure 5 , the sliding and positioning structure includes a longitudinally arranged T-shaped protrusion 8 and several L-shaped protrusions 9; the T-shaped protrusion 8 includes a longitudinal protrusion 81 and a transverse protrusion 82, and the longitudinal protrusion 81 is connected to the lens barrel 2; the transverse protrusion 82 is connected to the longitudinal protrusion 81; several L-shaped protrusions 9 are respectively provided on the upper end surface and the lower end surface of the longitudinal protrusion 81, and the L-shaped protrusions 9 on the upper end surface of the longitudinal protrusion 81 and the L-shaped protrusions 9 on the lower end surface of the longitudinal protrusion 81 are symmetrically arranged along the transverse axis of the lens barrel 2.
[0039] In one embodiment, refer to Figures 1 to 2 、Figure 5 The L-shaped bump 9 includes a longitudinal plate 91 and a transverse plate 92. The longitudinal plate 91 is connected to the longitudinal bump 81, and the transverse plate 92 is connected to the transverse bump 82. The lower end of the longitudinal plate 91 is connected to the transverse plate 92. One side of the longitudinal plate 91 away from the longitudinal bump 81 contacts the bottom of the longitudinal groove 71; one side of the transverse plate 92 away from the transverse bump 82 contacts the side wall of the transverse groove 8.
[0040] In one embodiment, please refer to Figures 1 to 2 、 Figure 5 There are gaps 4 provided between the upper end face and the lower end face of the longitudinal bump 81 and the side walls of the longitudinal groove 71 respectively; there is a gap 4 provided between one side of the transverse bump 82 away from the longitudinal bump 81 and the bottom of the transverse groove 8.
[0041] In one embodiment, please refer to Figure 5 One side of the integral sleeve body 1 is provided with a through groove 6, and the through groove 6 communicates with the T-shaped groove 7.
[0042] In one embodiment, please refer to Figure 5 One side of the lens barrel 2 is provided with an adjusting rod 3, and the adjusting rod 3 is embedded in the through groove 6.
[0043] In one embodiment, please refer to Figure 5 One side of the adjusting rod 3 is connected to the transverse bump 82 on one side of the lens barrel 2.
[0044] The transverse plate 92 is responsible for the sliding and positioning in the X direction, and the longitudinal plate 91 is responsible for the sliding and positioning in the Y direction. A plurality of L-shaped bumps 9 are slidably limited in the groove to respectively limit the lens barrel 2 in the X direction and the Y direction. The design of multiple sliding planes is beneficial to the control of sliding accuracy, reduces the resistance of sliding movement, and also avoids the sliding jamming caused by the structural deformation during the forming process. It gets rid of the influence of the dimensional gap 4 formed by the draft angle of the integral body sleeve on the clarity of the projected image, eliminates the radial shaking of the lens barrel 2 assembly of the integral sleeve body 1, improves the axial positioning accuracy, and there is no increase in the cost of the optical engine.
[0045] Specifically, the sliding and positioning structures on both sides of the lens barrel 2 adopt T-shaped bumps 8 and L-shaped bumps 9, which are symmetrically arranged along the longitudinal axis. This L-shaped bump 9 allows the lens barrel 2 to accurately slide and position in the X and Y directions.
[0046] The T-shaped bump 8 provides the main support. The longitudinal bump 81 is connected to the lens barrel 2, and the transverse bump 82 is connected to it. The design of the L-shaped bump 9 allows for a certain degree of sliding freedom on both the horizontal and vertical axes.
[0047] The gap 4 between several L-shaped bumps 9 and the T-shaped groove 7 is designed to ensure that there is no jamming during sliding, allowing smooth movement. At the same time, such a design can accommodate the minor errors that may occur during the manufacturing process.
[0048] Through the setting of the adjusting rod 3, the user can conveniently adjust the position of the lens barrel 2 to achieve the best optical effect.
[0049] The design of using multiple sliding and mating planes, that is, the multiple sliding and mating contact surfaces formed by the contact between several L-shaped bumps 9 and the T-shaped groove 7, can precisely control the movement of the sliding and mating, thereby improving the positioning accuracy of the lens barrel 2, ensuring the quality of optical imaging; effectively reducing the movement resistance, making the adjustment and movement smoother, and reducing the operation burden of the user. This structure can reduce the risk of deformation during the forming process, avoid the phenomenon of jamming in the sliding and mating, and ensure the stability and reliability of the lens barrel 2 during use.
[0050] The design of the adjusting rod 3 enables the user to quickly and conveniently adjust the position of the lens barrel 2 to meet different usage requirements.
[0051] In summary, this sliding and mating positioning structure achieves high precision, low resistance, and good stability through ingenious design, and is suitable for high-precision optical devices.
[0052] The above-mentioned sliding and mating structure of a lens barrel assembly for an integrated sleeve body, by setting a sliding groove and a sliding and mating positioning structure, the sliding groove is set as a T-shaped structure and is symmetrically arranged; the sliding and mating positioning structure is provided with a T-shaped bump 8 and several L-shaped bumps 9, and the T-shaped bump 8 and several L-shaped bumps 9 are symmetrically arranged, realizing the precise fit between the lens barrel 2 and the sleeve, ensuring the accuracy of the lens, guaranteeing the clarity of the projection screen, and further improving the quality and production efficiency of the finished product.
[0053] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. A sliding fit structure for a lens barrel assembly of an integrated sleeve body, characterized in that Comprising: A sliding groove provided on an integrated sleeve body and a sliding and positioning structure provided on the lens barrel, the lens barrel being sleeved inside the integrated sleeve body, and the sliding and positioning structure being embedded in the sliding groove, and a clearance space being provided between the outer sidewall of the lens barrel and the inner sidewall of the integrated sleeve body.
2. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 1, wherein, The sliding groove includes a longitudinally arranged T-shaped groove; the T-shaped groove includes a transverse groove and a longitudinal groove, and the longitudinal groove communicates with the transverse groove.
3. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 2, characterized in that, The sliding grooves are respectively provided on both sides of the integrated sleeve body; and the two sliding grooves are symmetrically arranged along the longitudinal axis of the integrated sleeve body.
4. A sliding fit structure of a lens barrel assembly for an integrated sleeve body according to any one of claims 2 to 3, characterized in that, The sliding and positioning structures are respectively provided on both sides of the lens barrel, and the two sliding and positioning structures are symmetrically arranged along the longitudinal axis of the lens barrel.
5. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 4, characterized in that, The sliding and positioning structure includes a longitudinally arranged T-shaped protrusion and a plurality of L-shaped protrusions; the T-shaped protrusion includes a longitudinal protrusion and a transverse protrusion, the longitudinal protrusion is connected to the lens barrel; the transverse protrusion is connected to the longitudinal protrusion; a plurality of L-shaped protrusions are respectively provided on the upper end surface and the lower end surface of the longitudinal protrusion, and the L-shaped protrusions on the upper end surface of the longitudinal protrusion and the L-shaped protrusions on the lower end surface of the longitudinal protrusion are symmetrically arranged along the transverse axis of the lens barrel.
6. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 5, characterized in that, The L-shaped protrusion includes a longitudinal plate and a transverse plate, the longitudinal plate is connected to the longitudinal protrusion, the transverse plate is connected to the transverse protrusion, and the lower end of the longitudinal plate is connected to the transverse plate, and one side surface of the longitudinal plate away from the longitudinal protrusion contacts the bottom of the longitudinal groove; one side surface of the transverse plate away from the transverse protrusion contacts the sidewall of the transverse groove.
7. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 6, characterized in that, Clearances are respectively provided between the upper end surface of the longitudinal protrusion and the sidewall of the longitudinal groove and between the lower end surface of the longitudinal protrusion and the sidewall of the longitudinal groove; a clearance is provided between one side of the transverse protrusion away from the longitudinal protrusion and the bottom of the transverse groove.
8. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 7, characterized in that, A through groove is provided on one side of the integrated sleeve body, and the through groove communicates with the T-shaped groove.
9. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 8, characterized in that, An adjusting rod is provided on one side of the lens barrel, and the adjusting rod is embedded in the through groove.
10. The sliding fit structure of a lens barrel assembly for an integrated sleeve body according to claim 9, characterized in that, One side of the adjusting rod is connected to the transverse protrusion on one side of the lens barrel.