Adjusting assembly, ray machine mechanism and projector
By designing an adjustment component in the projector that includes a bracket, damping block and adjusting parts, the wear and noise problems during the focus process of the projector is solved, and a stable and clear focus effect is achieved.
Patent Information
- Application Number
- CN202420943695.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the focus process, the projector is prone to cause large wear and scratch noise, and it is easy to hook other fittings to cause rebound noise.
An adjustment component is designed, including a bracket, a damping block and a adjustment member. The damping block is sleeved on the rotating shaft, and the adjustment part is sleeved on the damping block and can rotate about the rotation axis relative to the damping block. The rotation angle of the adjustment member is fixed through the damping effect of the damping block to avoid wear and noise.
This adjustment component can avoid wear and scratch noise during the focus process, reduce rebound noise, and ensure stability and clarity of the focus position.
Smart Images
Figure CN222653237U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present disclosure relate to but are not limited to projection technology, and in particular to an adjustment component, an optical-mechanical mechanism, and a projector. Background Art
[0002] In projector design, in order to ensure smooth focusing and compatibility with the optical machine, the assembly design of the optical machine lens usually adopts a low (no) damping design. In order for the lens to be able to stably stop at a clear focusing position, a manual focus projector usually needs to design a damping structure in the focusing device, and the damping structure cannot affect the focusing feel due to excessive resistance; these damping structures will occupy a certain layout space, resulting in an increase in the spatial structure of the entire machine.
[0003] Similar projector structures on the market currently produce large wear and scratching noises during the focusing process, and are prone to hooking other mating parts and producing abnormal rebound noises. Utility Model Content
[0004] The embodiments of the present disclosure provide an adjustment component, an optical-mechanical mechanism, and a projector, which are intended to solve the technical problems that the projector generates large wear and scraping noises during the focusing process, and is prone to hooking other matching parts and producing abnormal rebound noises.
[0005] The present disclosure provides a regulating component, including:
[0006] The bracket comprises a body and a rotating shaft arranged on the body;
[0007] A damping block is sleeved on the rotating shaft; and
[0008] The adjusting member is at least partially sleeved on the damping block and can rotate around the rotating shaft relative to the damping block.
[0009] In some embodiments of the adjustment assembly, the damping block is interference fit with the rotating shaft, and the interference amount is 0.09 mm to 0.11 mm.
[0010] In some embodiments of the adjustment assembly, the outer wall of the damping block has a matte frosted structure.
[0011] In some embodiments of the adjustment assembly, the damping block is made of rubber, and the hardness of the damping block is 45° to 55°.
[0012] In some embodiments of the adjustment assembly, a lubricating medium is provided between the damping block and the adjustment member.
[0013] In some embodiments of the adjustment assembly, the adjustment member has an inner wall, the inner wall has a sleeve portion on at least one side along the axial direction of the rotating shaft, the sleeve portion is arranged on the adjustment member, the inner wall and the sleeve portion together enclose an installation space, and the damping block is located in the installation space;
[0014] The inner wall and the damping block are in clearance fit;
[0015] The sleeve portion is sleeved on the rotating shaft and is loosely matched with the rotating shaft.
[0016] In some embodiments of the adjustment assembly, a gap between the sleeve portion and the rotating shaft is larger than a gap between the inner wall and the damping block.
[0017] In some embodiments of the adjustment assembly, the gap between the inner wall and the damping block is 0.04 mm to 0.06 mm.
[0018] In some embodiments of the adjustment assembly, a single-sided clearance fit is formed between the inner wall and the damping block.
[0019] In some embodiments of the adjustment assembly, a gap between the sleeve portion and the rotating shaft is 0.14 mm to 0.16 mm.
[0020] In some embodiments of the adjustment assembly, the damping block and the sleeve portion are clearance-matched, and the clearance between the damping block and the sleeve portion is 0.14 mm to 0.16 mm.
[0021] In some embodiments of the adjustment assembly, the rotating shaft is disposed on one side of the body, and a side of the installation space facing the body passes through the adjustment member;
[0022] The damping block is partially exposed on a side of the installation space facing the main body and abuts against the main body. The adjusting member is loosely matched with the main body, and the gap between the adjusting member and the main body is 0.2 mm to 0.4 mm.
[0023] The present disclosure also provides an optical-mechanical mechanism, including:
[0024] Lens assembly;
[0025] A focus wheel, disposed on the lens assembly; and
[0026] As described above, the adjusting member of the adjusting member is in transmission connection with the focusing wheel, and the adjusting member is configured to drive the focusing wheel to change the distance between the lens assembly and the imaging surface.
[0027] In some embodiments of the optical-mechanical mechanism, the focusing wheel has a first gear ring on its circumferential outer side, and the adjusting member has a second gear ring on its circumferential outer side meshing with the first gear ring.
[0028] The present disclosure also provides a projector, including:
[0029] A host, comprising a housing and an image projection unit disposed on the housing; and
[0030] In the above-mentioned optomechanical mechanism, the image projection unit and the lens assembly of the optomechanical mechanism are arranged in sequence along the optical path, and the adjustment assembly of the optomechanical mechanism is arranged on the housing.
[0031] Implementing the embodiments of the present disclosure will have the following beneficial effects:
[0032] The adjustment component of the above scheme is applied to the optical mechanism and the projector. In addition to having better focusing performance, it can also avoid large wear and scratching noise during the focusing process, and avoid hooking other matching parts to produce abnormal rebound noise. Specifically, the adjustment component includes a bracket, a damping block and an adjustment member. Among them, the bracket includes a main body and a rotating shaft arranged on the main body. The damping block is mounted on the rotating shaft. The adjustment member is at least partially mounted on the damping block, and can rotate around the rotating shaft relative to the damping block. The focusing of the optical mechanism and the projector is achieved by rotating relative to the rotating shaft, and the damping effect of the damping block can fix the adjustment member at a certain rotation angle when the external force stops driving, thereby fixing the focusing position at a clear image position. Compared with the damping structure of metal springs or plastic springs, the damping block can use its own elastic deformation ability to form surface contact with the adjusting part, increasing the connection area between the damping block and the adjusting part, making the force between the damping block and the adjusting part more evenly distributed, thereby avoiding excessive concentration of force on a small area, and thus avoiding large wear and scratching noise during the focusing process, and avoiding abnormal rebound noise caused by hooking other mating parts.
[0033] Other aspects will be apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure.
[0035] Figure 1 is a partial schematic diagram of a projector in an embodiment of the present disclosure;
[0036] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0037] Figure 3 A schematic diagram of the structure of an adjusting component in an adjusting component in a disclosed embodiment;
[0038] Figure 4 is a cross-sectional schematic diagram of an adjustment component in the adjustment component of the disclosed embodiment;
[0039] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B in the middle.
[0040] Description of Figure Numbers:
[0041] 10. Housing; 20. Image projection unit; 30. Lens assembly; 40. Focus wheel; 41. First gear ring; 50. Adjustment assembly; 51. Bracket; 511. Main body; 5111. Abutment platform; 5112. Support wall; 512. Rotating shaft; 5121. First circumferential wall; 5122. Second circumferential wall; 5123. Fourth circumferential wall; 52. Damping block; 53. Adjustment member; 531. Inner wall; 532. Sleeve portion; 5321. Third circumferential wall; 533. Second gear ring; 60. Screw; 100. Accommodation groove; 200. Through hole; 300. Through hole; 400. Installation space.
[0042] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0043] The present disclosure describes multiple embodiments, but the description is exemplary rather than restrictive, and it is apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.
[0044] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in the present disclosure may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present disclosure may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the attached claims.
[0045] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described in the present disclosure, the method or process should not be limited to the steps in the specific order described. As will be understood by those of ordinary skill in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation on the claims. In addition, the claims for the method and / or process should not be limited to the steps performed in the order written, and those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present disclosure.
[0046] In projector design, in order to ensure smooth focusing and compatibility with the optical machine, the assembly design of the optical machine lens usually adopts a low (no) damping design. In order for the lens to be able to stably stop at a clear focusing position, a manual focus projector usually needs to design a damping structure in the focusing device, and the damping structure cannot affect the focusing feel due to excessive resistance; these damping structures will occupy a certain layout space, resulting in an increase in the spatial structure of the entire machine.
[0047] The inventors of the present disclosure have discovered that similar projector structures on the market currently generally use metal springs or plastic springs as damping structures. During the focusing process, the force is concentrated on a smaller area, which will cause greater wear and scratching noise to matching parts such as adjustment parts, brackets and damping structures, and the spring structure is prone to hooking other matching parts and producing abnormal rebound noise.
[0048] Please combine Figures 1 to 3, the projector provided by the embodiment of the present disclosure is now described. The projector includes a host and an optical-mechanical mechanism. Among them, the host includes a housing 10 and an image projection unit 20 arranged on the housing 10. The optical-mechanical mechanism includes a lens assembly 30, a focus wheel 40 and an adjustment assembly 50. The image projection unit 20 and the lens assembly 30 are arranged in sequence along the optical path. The focus wheel 40 is arranged on the lens assembly 30. In the embodiment of the present disclosure, the focus wheel 40 is annular and is arranged on the circumferential outer side of the lens assembly 30. The focus wheel 40 can be connected between the lens assembly 30 and the housing 10, and the lens assembly 30 is driven to move relative to the housing 10 by rotating relative to the housing 10 and using the threaded connection structure between the focus wheel 40 and the lens assembly 30 to adjust the image on the imaging surface to be clear. The focus wheel 40 can be connected between adjacent lenses in the lens assembly 30, and the adjacent lenses are driven to move relative to each other by rotating relative to one of the adjacent lenses and using the threaded connection structure between the focus wheel 40 and the other of the adjacent lenses to adjust the image on the imaging surface to be clear. The imaging surface may be located on the side of the diffuse reflection screen, the regression screen, the anti-glare screen or the rear projection screen facing the lens assembly 30 .
[0049] The adjustment component 50 is disposed on the housing 10. Please combine Figures 3 to 5 The adjustment assembly 50 includes a bracket 51, a damping block 52 and an adjustment member 53. The bracket 51 includes a body 511 and a rotating shaft 512 disposed on the body 511. The body 511 can be disposed on the housing 10 to fix the adjustment assembly 50 to the housing 10. The body 511 and the housing 10 can be interconnected by means of snap connection, plug connection, welding or threaded connection.
[0050] In the embodiment of the present disclosure, the main body 511 and the housing 10 can be connected by a screw 60. The main body 511 is provided with a receiving groove 100 and a through hole 200, and the receiving groove 100 is connected with the through hole 200. The screw 60 can pass through the receiving groove 100 and be inserted into the through hole 200 to connect the main body 511 and the housing 10. The receiving groove 100 is configured to accommodate the head of the screw 60 to prevent the head from scratching other structures of the projector. The through hole 200 has a certain taper, and the small end of the through hole 200 is connected with the receiving groove 100, so as to facilitate the slight deformation of the main body 511 under the action of the screw 60, thereby increasing the gap between the main body 511 and the housing 10 and improving the connection stability.
[0051] The damping block 52 is sleeved on the rotating shaft 512. The adjusting member 53 is at least partially sleeved on the damping block 52 and can rotate around the rotating shaft 512 relative to the damping block 52. The adjusting assembly 50 is arranged on the housing 10 so that the adjusting member 53 is partially exposed on the housing 10 to facilitate manual drive. In the embodiment of the present disclosure, the housing 10 is provided with a through hole 300, and the bracket 51 and the damping block 52 are accommodated in the housing 10. The adjusting member 53 is accommodated in the housing 10 and partially exposed to the housing 10 through the through hole 300, so that the housing 10 can shield and protect the matching position of the rotating shaft 512, the damping block 52 and the adjusting member 53 to prevent external interference with the matching between the rotating shaft 512, the damping block 52 and the adjusting member 53. The hole walls of the through hole 300 on both sides of the axial direction of the rotating shaft 512 can limit the adjusting member 53 to avoid excessive axial displacement of the adjusting member 53 along the rotating shaft 512.
[0052] like Figure 1 and Figure 2 As shown, the adjusting member 53 is in driving connection with the focus wheel 40, and the adjusting member 53 is configured to drive the focus wheel 40 to change the distance between the lens assembly 30 and the imaging plane. The image projection unit 20 can form a projection image, and the projection image can be focused on the imaging plane located on the optical path through the lens assembly 30. The projector can be used as a wide-screen TV by adding a well-known electronic circuit (such as a tuner circuit, a video / sound signal reproduction circuit) to the host.
[0053] In summary, the implementation of the disclosed embodiment will have the following beneficial effects: the adjustment component 50 of the above scheme is applied to the optical mechanism and the projector. In addition to having better focusing performance, it can also avoid large wear and scratching noise during the focusing process, and avoid hooking other matching parts to produce abnormal rebound noise. Specifically, the adjustment component 50 includes a bracket 51, a damping block 52 and an adjustment member 53. Among them, the bracket 51 includes a main body 511 and a rotating shaft 512 arranged on the main body 511. The damping block 52 is sleeved on the rotating shaft 512. The adjustment member 53 is at least partially sleeved on the damping block 52, and can rotate around the rotating shaft 512 relative to the damping block 52. The focusing of the optical mechanism and the projector is achieved by rotating relative to the rotating shaft 512, and the damping effect of the damping block 52 can fix the adjustment member 53 at a certain rotation angle when the external force stops driving, thereby fixing the focusing position at a clear image position. Compared with the damping structure of metal springs or plastic springs, the damping block 52 can use its own elastic deformation ability to form surface contact with the adjusting part 53, thereby increasing the connection area between the damping block 52 and the adjusting part 53, and making the force between the damping block 52 and the adjusting part 53 more evenly distributed, thereby avoiding excessive concentration of force on a small area, and further avoiding large wear and scratching noise during the focusing process, and avoiding abnormal rebound noise caused by hooking other matching parts.
[0054] In the exemplary embodiment, please combine Figure 4 and Figure 5 , the damping block 52 and the rotating shaft 512 are interference fit, and the interference amount can be about 0.09mm to 0.11mm. For example, the interference amount can be about 0.1mm. In this way, the damping block 52 can use its own elastic deformation to tightly wrap the rotating shaft 512, so that it can be more stably assembled on the rotating shaft 512. During the process of the adjustment member 53 rotating around the rotating shaft 512 relative to the damping block 52, the position of the damping block 52 relative to the rotating shaft 512 is fixed, and it does not rotate relative to the rotating shaft 512 with the rotation of the adjustment member 53, thereby ensuring the stability of the damping effect, and further ensuring that the focusing position can be stably fixed at the image clear position.
[0055] In an exemplary embodiment, the orthographic projection of the rotating shaft 512 on the body 511 is coaxially arranged with the orthographic projection of the damping block 52 on the body 511. The distance from the edge of the orthographic projection of the rotating shaft 512 on the body 511 to the edge of the orthographic projection of the damping block 52 on the body 511 is less than the radial dimension of the orthographic projection of the rotating shaft 512 on the body 511. The radial dimension is the maximum radial dimension of the rotating shaft 512.
[0056] In an exemplary embodiment, the rotating shaft 512 includes a first circumferential wall 5121 connected to the damping block 52. The shape of the orthographic projection of the first circumferential wall 5121 on the body 511 includes but is not limited to regular shapes such as triangle, square, rectangle, circle or ellipse, and can also be an irregular shape.
[0057] In an exemplary embodiment, the axial dimension of the rotating shaft 512 is greater than the axial dimension of the damping block 52 , wherein the axial dimension refers to the dimension in a direction perpendicular to the body 511 .
[0058] In an exemplary embodiment, the outer wall of the damping block 52 has a matte frosted structure, and the outer wall is in contact with the adjusting member 53, so that the damping effect between the damping block 52 and the adjusting member 53 can be improved, ensuring that the focusing position can be stably fixed at a clear image position. The matte frosted structure can be formed by a matte frosting process. It can be understood that in other embodiments, the outer wall can also be formed by other methods to improve the damping effect between the damping block 52 and the adjusting member 53. Other methods include but are not limited to corona treatment process, plasma treatment process, ozone treatment process, flame treatment process, high voltage electric shock treatment process, ionized radiation treatment process, acid treatment process, etc.
[0059] In an exemplary embodiment, the material of the damping block 52 is rubber, for example, chloroprene rubber or silicone rubber, etc. It can be understood that in other embodiments, the material of the damping block 52 can also be other viscoelastic materials, for example, polyvinyl chloride, epoxy resin glue or foam plastics, etc. The material of the damping block 52 can be a single material listed above, or a mixed material of the multiple materials listed above. The material of the damping block 52 can also be arranged layer by layer in a stacked manner to form a damping block 52 with a multi-layer structure. The stacking direction of the multi-layer structure can be distributed radially of the damping block 52, or it can be distributed axially of the damping block 52. The material of each layer structure can be a single material listed above, or it can be a mixed material of the multiple materials listed above, and the mixing ratio of the mixed material of the multiple materials listed above in each layer structure is not exactly the same.
[0060] In an exemplary embodiment, the stiffness of the damping mass 52 may be approximately 45° to 55°. For example, the stiffness of the damping mass 52 may be approximately 50°.
[0061] In an exemplary embodiment, a lubricating medium is provided between the damping block 52 and the adjusting member 53, so as to ensure the damping effect and ensure that the adjusting member 53 can smoothly rotate relative to the damping block 52, so as to avoid the static friction resistance between the damping block 52 and the adjusting member 53 being too large, resulting in an unstable connection between the damping block 52 and the rotating shaft 512, and reduce the risk of the damping block 52 rotating relative to the rotating shaft 512. The lubricating medium can be selected from a stable grease that is less affected by temperature changes and is resistant to oxidation.
[0062] In an exemplary embodiment, Figure 5 As shown, the adjusting member 53 has an inner wall 531. The inner wall 531 has a sleeve portion 532 on at least one side along the axial direction of the rotating shaft 512. The sleeve portion 532 is arranged on the adjusting member 53, and the inner wall 531 and the sleeve portion 532 together enclose an installation space 400. The damping block 52 is located in the installation space 400. In this way, the damping block 52 can be restricted along the axial direction of the damping block 52 by the arrangement of the sleeve portion 532, thereby ensuring the connection stability between the damping block 52 and the adjusting member 53.
[0063] In an exemplary embodiment, the orthographic projection of the damping block 52 on the body 511 is in the shape of a circle. The orthographic projection of the inner wall 531 on the body 511 is in the shape of a circle.
[0064] In an exemplary embodiment, the rotating shaft 512 further includes a second circumferential wall 5122 facing the sleeve portion 532. The orthographic projection of the second circumferential wall 5122 on the body 511 is circular. The orthographic projection of the second circumferential wall 5122 on the body 511 and the orthographic projection of the second circumferential wall 5122 on the body 511 at least partially overlap.
[0065] In an exemplary embodiment, the sleeve portion 532 includes a third circumferential wall 5321 facing the second circumferential wall 5122. The shape of the orthographic projection of the third circumferential wall 5321 on the body 511 is circular.
[0066] In an exemplary embodiment, the rotating shaft 512 further includes a fourth circumferential wall 5123. The fourth circumferential wall 5123 may be a circumferential outer wall portion of the rotating shaft 512 other than the first circumferential wall 5121 and the second circumferential wall 5122. The shape of the orthographic projection of the fourth circumferential wall 5123 on the body 511 includes, but is not limited to, regular shapes such as a triangle, a square, a rectangle, a circle, or an ellipse, and may also be an irregular shape. The orthographic projection of the fourth circumferential wall 5123 on the body 511 overlaps at least partially with at least one of the orthographic projection of the second circumferential wall 5122 on the body 511 and the orthographic projection of the second circumferential wall 5122 on the body 511.
[0067] In an exemplary embodiment, the axial dimension of the first circumferential wall 5121 is greater than the axial dimension of the second circumferential wall 5122. The axial dimension of the fourth circumferential wall 5123 is greater than the axial dimension of the second circumferential wall 5122. The axial dimension refers to the dimension in a direction perpendicular to the body 511.
[0068] In an exemplary embodiment, the inner wall 531 is loosely matched with the damping block 52. The sleeve portion 532 is sleeved on the rotating shaft 512 and loosely matched with the rotating shaft 512.
[0069] In an exemplary embodiment, the gap between the sleeve portion 532 and the rotating shaft 512 is larger than the gap between the inner wall 531 and the damping block 52. That is, the gap between the second circumferential wall 5122 and the third circumferential wall 5321 is larger than the gap between the inner wall 531 and the damping block 52. In this way, when the adjusting member 53 moves along the non-axial direction of the rotating shaft 512 under the action of the adjusting driving force or gravity, the gap between the sleeve portion 532 and the rotating shaft 512 allows the damping block 52 to have a certain deformation space, thereby being able to produce a certain amount of deformation and improving the damping effect. Moreover, under the restriction of the sleeve portion 532 and the rotating shaft 512, it is possible to avoid excessive deformation of the damping block 52, avoid excessive static friction resistance between the damping block 52 and the inner wall 531, and prevent the connection between the damping block 52 and the rotating shaft 512 from being unstable, thereby reducing the risk of the damping block 52 rotating relative to the rotating shaft 512.
[0070] In the embodiment of the present disclosure, the outer circumferential side of the focus wheel 40 has a first gear ring 41, and the outer circumferential side of the adjustment member 53 has a second gear ring 533 meshing with the first gear ring 41. In this way, the meshing of the first gear ring 41 and the second gear ring 533 can prevent the focus wheel 40 from moving relative to the adjustment member 53 during the adjustment process, improve the stability of the transmission coordination, and thus ensure the adjustment accuracy of the adjustment member 53.
[0071] In an exemplary embodiment, both the first gear ring 41 and the second gear ring 533 are spur gear rings. The tooth groove depth of the second gear ring 533 is less than the minimum radial dimension of the rotating shaft 512. The distance from the edge of the orthographic projection of the tooth groove on the body 511 to the edge of the orthographic projection of the damping block 52 on the body 511 is greater than the maximum radial dimension of the orthographic projection of the damping block 52 on the body 511.
[0072] In an exemplary embodiment, the gap between the inner wall 531 and the damping block 52 may be approximately 0.04 mm to 0.06 mm. For example, the gap between the inner wall 531 and the damping block 52 may be approximately 0.05 mm. The inner wall 531 and the damping block 52 are matched with a single-sided gap. In this way, the damping block 52 can play a damping role without excessively interfering with the rotation of the adjustment member 53, thereby improving the driving feel. In this way, the damping block 52 also has a certain amount of deformation, thereby improving the damping effect. In addition, there is a certain relative displacement space between the adjustment member 53 and the damping block 52, so that the adjustment member 53 can move slightly radially, thereby avoiding the phenomenon of heavy meshing and jamming during the rotation of the adjustment member 53 and the focusing wheel 40.
[0073] The adjustment member 53 is deflected by the adjustment driving force and can squeeze the damping block 52 to generate friction, thereby realizing the damping effect. After the adjustment driving force is withdrawn, the adjustment member 53 starts to rotate and generates damping due to static friction, thereby being stably fixed at a certain rotation angle, ensuring that the focusing position can be stably fixed at a clear image position.
[0074] In an exemplary embodiment, the gap between the sleeve portion 532 and the rotating shaft 512 may be approximately 0.14 mm to 0.16 mm. For example, the gap between the sleeve portion 532 and the rotating shaft 512 may be approximately 0.15 mm.
[0075] The adjustment assembly 50 disclosed in the embodiment of the present disclosure has a moderate damping effect through the above-mentioned gap range between the inner wall 531 and the damping block 52, the above-mentioned gap range between the sleeve portion 532 and the rotating shaft 512, the damping block 52 made of rubber material, and the hardness range of the damping block 52, so as not to generate excessive resistance and affect the feel of focusing; compared with the previous scheme, it can avoid the debris and noise caused by hooking and wear. In addition, the manufacturing cost of the damping block 52 made of rubber material is lower.
[0076] In an exemplary embodiment, Figure 5 As shown, the damping block 52 and the sleeve portion 532 are clearance-matched, and the clearance between the damping block 52 and the sleeve portion 532 may be approximately 0.14 mm to 0.16 mm. For example, the clearance between the damping block 52 and the sleeve portion 532 may be approximately 0.15 mm.
[0077] In the exemplary embodiment, please combine Figures 3 to 5, the rotating shaft 512 is arranged on one side of the body 511. The side of the installation space 400 facing the body 511 penetrates the adjusting member 53, so that the installation space 400 is a slot structure, which facilitates the adjusting member 53 to be sleeved on the damping block 52 through the slot of the installation space 400, and the slot position is also chamfered, which further facilitates the adjusting member 53 to be sleeved on the damping block 52.
[0078] The damping block 52 is partially exposed on the side of the installation space 400 facing the body 511 and abuts against the body 511. The adjusting member 53 is clearance-matched with the body 511. The clearance between the adjusting member 53 and the body 511 may be about 0.2 mm to 0.4 mm. For example, the clearance between the adjusting member 53 and the body 511 may be about 0.3 mm.
[0079] The body 511 has an abutment platform 5111 on one side facing the adjusting member 53 , and the rotating shaft is disposed on the abutment platform 5111 . The damping block 52 abuts against the abutment platform 5111 . The orthographic projection of the damping block 52 on the body 511 is located within the range of the abutment platform 5111 .
[0080] The body 511 also has a plurality of support walls 5112 located on the circumferential outer side of the abutment platform 5111, and the orthographic projections of the plurality of support walls 5112 on the body 511 are located within the range of the orthographic projections of the adjustment member 53 on the body 511. The plurality of support walls 5112 are evenly distributed relative to the axial direction of the abutment platform 5111, and extend along the radial direction of the abutment platform 5111.
[0081] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.
[0082] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0083] Although the embodiments disclosed in the present disclosure are as above, the contents described are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. It should be noted that the above embodiments or embodiments are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of the implementation without departing from the scope of the present disclosure.
Claims
1. An adjustment component, characterized in that: include: The bracket comprises a body and a rotating shaft arranged on the body; A damping block, sleeved on the rotating shaft; and The adjusting member is at least partially sleeved on the damping block and can rotate around the rotating shaft relative to the damping block.
2. The adjustment assembly according to claim 1, characterized in that: The damping block is interference-fitted with the rotating shaft, and the interference amount is 0.09 mm to 0.11 mm.
3. The adjustment assembly according to claim 1, characterized in that: The outer wall of the damping block has a matte frosted structure.
4. The adjustment assembly according to claim 1, characterized in that: The material of the damping block is rubber, and the hardness of the damping block is 45° to 55°.
5. The adjustment assembly according to claim 1, characterized in that: A lubricating medium is arranged between the damping block and the adjusting member.
6. The adjustment assembly according to any one of claims 1 to 5, characterized in that The adjusting member has an inner wall, and the inner wall has a sleeve portion on at least one side along the axial direction of the rotating shaft, the sleeve portion is arranged on the adjusting member, the inner wall and the sleeve portion together enclose an installation space, and the damping block is located in the installation space; The inner wall and the damping block are in clearance fit; The sleeve portion is sleeved on the rotating shaft and is loosely matched with the rotating shaft.
7. The adjustment assembly according to claim 6, characterized in that The gap between the sleeve portion and the rotating shaft is larger than the gap between the inner wall and the damping block.
8. The adjustment assembly according to claim 7, characterized in that The gap between the inner wall and the damping block is 0.04 mm to 0.06 mm.
9. The adjustment assembly according to claim 8, characterized in that The inner wall and the damping block are matched with a single-side clearance.
10. The adjustment assembly according to claim 7, characterized in that The gap between the sleeve portion and the rotating shaft is 0.14 mm to 0.16 mm.
11. The adjustment assembly according to claim 6, characterized in that The damping block and the sleeve portion are clearance-matched, and the clearance between the damping block and the sleeve portion is 0.14 mm to 0.16 mm.
12. The adjustment assembly according to claim 6, characterized in that The rotating shaft is arranged on one side of the body, and the side of the installation space facing the body passes through the adjusting member; The damping block is partially exposed on a side of the installation space facing the main body and abuts against the main body. The adjusting member is loosely matched with the main body, and the gap between the adjusting member and the main body is 0.2 mm to 0.4 mm.
13. An optical mechanical mechanism, characterized in that: include: Lens assembly; A focusing wheel, arranged on the lens assembly; and The adjustment assembly according to any one of claims 1 to 12, wherein the adjustment member of the adjustment assembly is transmission-connected to the focusing wheel, and the adjustment member is configured to drive the focusing wheel to change the distance between the lens assembly and the imaging plane.
14. The optical-mechanical mechanism according to claim 13, characterized in that: The focusing wheel has a first gear ring on its circumferential outer side, and the adjusting member has a second gear ring on its circumferential outer side meshing with the first gear ring.
15. A projector, characterized in that: include: A host, comprising a housing and an image projection unit arranged on the housing; and According to the optomechanical mechanism as described in claims 13 and 14, the image projection unit and the lens assembly of the optomechanical mechanism are arranged in sequence along the optical path, and the adjustment assembly of the optomechanical mechanism is arranged on the housing.