Sliding structure for electric focusing of short lens cone

Abstract

The embodiment of the utility model discloses a sliding structure for electric focusing of a short lens barrel. The sliding structure comprises a lens barrel, a sleeve, a guide structure, a push-pull rod structure and a motor push-pull structure, the motor push-pull structure is connected with the push-pull rod structure; the push-pull rod structure and the guide structure are respectively connected with the lens barrel; the lens barrel is arranged in the sleeve, and the push-pull rod structure penetrates through the sleeve; two limiting guide grooves are formed in the sleeve, and the push-pull rod structure and the guide structure are arranged in the two limiting guide grooves respectively. By implementing the structure of the embodiment of the utility model, the limitation on the length size in the prior art can be overcome, and meanwhile, the requirements on assembly accuracy and processing accuracy are reduced, so that the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of short lens barrels, in particular to a sliding structure used for electric focusing of a short lens barrel. Background Art

[0002] The sliding structure of the existing electric focusing of the lens barrel is a structure that helps the lens to move forward and backward relative to the overall position. It usually includes three independent parts: a guide structure, a limit structure and a push-pull structure. Either the limit and guide structures are integrated into one and are independent of the push-pull structure, or the guide structure is a structure with a left-right symmetrical design.

[0003] For a relatively short lens barrel, the corresponding sliding sleeve structure will also be relatively small. If the existing sliding structure is still used, the length limitation may lead to structural assembly limitations. Secondly, for a lens barrel of relatively conventional size, the limit holes, guide holes and push-pull rod holes on the sliding sleeve are affected by the processing technology. The guide structure, limit structure and push-pull structure need to achieve normal function realization, which requires a relatively high assembly accuracy and processing accuracy, which will also increase the manufacturing cost.

[0004] Therefore, it is necessary to design a new structure to overcome the length size limitation in the prior art while reducing the assembly accuracy and processing accuracy requirements, thereby reducing the manufacturing cost. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a sliding structure for electric focusing of a short lens barrel.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing a sliding structure for electric focusing of a short lens barrel, comprising a lens barrel, a sleeve, a guide structure, a push-pull rod structure and a motor push-pull structure; the motor push-pull structure is connected to the push-pull rod structure; the push-pull rod structure and the guide structure are respectively connected to the lens barrel; the lens barrel is built in the sleeve, and the push-pull rod structure passes through the sleeve;

[0007] Two limiting guide grooves are arranged in the sleeve, and the push-pull rod structure and the guide structure are respectively placed in the two limiting guide grooves.

[0008] Its further technical solution is: the motor push-pull structure includes a motor, an output shaft and a mounting frame, the mounting frame is connected to the sleeve, the motor is mounted on the mounting frame, the motor is connected to the output shaft; the output shaft is connected to the push-pull rod structure.

[0009] A further technical solution is: the push-pull rod structure is connected to the output shaft via a sliding block.

[0010] A further technical solution is as follows: a gear is provided on the sliding block, a gear is provided on the output shaft, and the gear of the sliding block is meshed with the gear of the output shaft.

[0011] A further technical solution is as follows: the push-pull rod structure comprises a push-pull rod, and the push-pull rod is connected to the sliding block.

[0012] Its further technical solution is: the push-pull rod includes a connecting rod and a connecting block, one end of the connecting rod is connected to the sliding block; the other end of the connecting rod passes through the connecting block and is connected to the lens barrel; the connecting block is placed in the limiting guide groove.

[0013] A further technical solution is as follows: the guide structure comprises a guide block and a guide rod, the guide block is placed in the limit guide groove, the guide rod is connected to the guide block; and the other end of the guide rod is connected to the lens barrel.

[0014] A further technical solution is that the push-pull rod structure and the guide structure are arranged symmetrically relative to the plane where the longitudinal axis of the lens barrel is located.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a lens barrel, a sleeve, a guide structure, a push-pull rod structure and a motor push-pull structure; the motor push-pull structure is connected to the push-pull rod structure; the push-pull rod structure and the guide structure are respectively connected to the lens barrel; the motor push-pull structure, while realizing the function of pushing and pulling the lens barrel, combines with the guide structure and the limiting guide groove to play the role of guiding and the sliding groove limiting, and for a short lens barrel, realizes the three functions of pushing and pulling, guiding and limiting in the minimum space; it overcomes the length size limitation in the prior art, and at the same time reduces the assembly accuracy and processing accuracy requirements, thereby reducing the manufacturing cost.

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional schematic diagram of a sliding structure for electric focusing of a short lens barrel provided in an embodiment of the utility model Figure 1 ;

[0019] Figure 2A three-dimensional schematic diagram of a sliding structure for electric focusing of a short lens barrel provided in an embodiment of the utility model Figure 2 ;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of the lens barrel, sleeve and push-pull rod structure provided by an embodiment of the utility model;

[0021] Figure 4 A schematic cross-sectional view of a sliding structure for electric focusing of a short lens barrel provided by an embodiment of the utility model;

[0022] Description of the symbols in the figure:

[0023] 10. Sleeve; 20. Lens barrel; 30. Mounting frame; 31. Motor; 32. Output shaft; 40. Push-pull rod; 41. Sliding block; 42. Connecting block; 43. Connecting rod; 50. Guide structure; 51. Guide block; 52. Guide rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0026] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0027] It should be further understood that the term “and / or” used in the present specification 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.

[0028] See also Figure 1 , Figure 1 A three-dimensional schematic diagram of a sliding structure for electric focusing of a short lens barrel provided in an embodiment of the utility model Figure 1 , can be used in the electric focusing process of the lens barrel 20. Due to the use of a motor push-pull structure, while realizing the push-pull function of the lens barrel 20, it can also play a guiding and sliding groove limiting role. For a short lens barrel 20, the three functions of push-pull, guiding and limiting are realized in the smallest space, and the control accuracy is better than that of a conventional structure.

[0029] See also Figure 1 The above-mentioned sliding structure for electric focusing of a short lens barrel includes a lens barrel 20, a sleeve 10, a guide structure 50, a push-pull rod structure and a motor push-pull structure; the motor push-pull structure is connected to the push-pull rod structure; the push-pull rod structure and the guide structure 50 are respectively connected to the lens barrel 20; the lens barrel 20 is built into the sleeve 10, and the push-pull rod structure passes through the sleeve 10.

[0030] In this embodiment, the motor push-pull structure is connected to the push-pull rod structure, and the push-pull rod structure is pushed back and forth in the sleeve 10 through the push-pull action of the electric motor 31; the push-pull rod structure and the guide structure 50 are respectively connected to the lens barrel 20 to ensure the stability and accurate positioning of the lens barrel 20; the lens barrel 20 is built into the sleeve 10, and the push-pull rod structure passes through the sleeve 10, so that the entire structure is compact and occupies less space.

[0031] While realizing the function of pushing and pulling the lens barrel 20, the motor push-pull structure can also play the role of guiding and sliding groove limiting, so that the three functions of pushing and pulling, guiding and limiting are realized in the smallest space.

[0032] Compared with conventional structures, this sliding structure has higher control accuracy and can more accurately control the position of the lens, thereby improving imaging quality.

[0033] Due to its compact structure, it can achieve multi-functions in a relatively small space and is suitable for short-barrel 20 lenses, which improves the flexibility and applicability of the product.

[0034] In summary, the use of this sliding structure can effectively solve the problems of length size limitation and high assembly precision requirement in the prior art, while improving the performance and reliability of the electric focusing system of the lens barrel 20.

[0035] In one embodiment, see Figure 1 and Figure 3 The sleeve 10 is provided with two limiting guide grooves, and the push-pull rod structure and the guide structure 50 are respectively placed in the two limiting guide grooves.

[0036] By providing two limiting guide grooves in the sleeve 10, dual limiting guide of the lens barrel 20 can be achieved, ensuring the stability and precise positioning of the lens during the push-pull process. The two limiting guide grooves can effectively fix the push-pull rod structure and the guide structure 50 to prevent them from swinging or deflecting during the push-pull process, thereby improving the stability of the entire sliding structure.

[0037] Through the design of the double limit guide groove, the position of the push-pull rod structure and the guide structure 50 can be accurately controlled, thereby improving the accuracy and stability of the lens during the push-pull process, which is conducive to ensuring the imaging quality. The design of the double limit guide groove can effectively reduce the friction and wear of the structure, extend the service life of the system, reduce maintenance costs and the frequency of replacing parts. The stable structure and precise sliding mechanism help reduce the risk of failure caused by component displacement or damage, and improve the reliability and performance stability of the product.

[0038] In summary, the design of providing two limiting guide grooves in the sleeve 10 and placing the push-pull rod structure and the guide structure 50 therein improves the stability, accuracy and durability of the system while also enhancing the reliability and performance of the product.

[0039] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The motor push-pull structure includes a motor 31, an output shaft 32 and a mounting frame 30. The mounting frame 30 is connected to the sleeve 10. The motor 31 is installed on the mounting frame 30. The motor 31 is connected to the output shaft 32; the output shaft 32 is connected to the push-pull rod structure.

[0040] In one embodiment, see Figure 2 and Figure 4 The push-pull rod structure is connected to the output shaft 32 via a sliding block 41 .

[0041] The motor 31 is connected to the push-pull rod structure through the output shaft 32. The power of the motor 31 can be transmitted to the push-pull rod structure to drive it to perform push-pull movements; the push-pull rod structure is connected to the output shaft 32 through the sliding block 41; the movement of the output shaft 32 will be transmitted to the push-pull rod structure, thereby realizing the movement of the push-pull rod structure.

[0042] In one embodiment, see Figure 2 and Figure 4 The sliding block 41 is provided with a gear, and the output shaft 32 is provided with a gear. The gear of the sliding block 41 is meshed with the gear of the output shaft 32.

[0043] In this embodiment, the sliding block 41 is provided with a gear, and the output shaft 32 is also provided with a gear, and these gears are meshed together; when the output shaft 32 rotates, its gear drives the gear on the sliding block 41, thereby driving the sliding block 41 to move.

[0044] In one embodiment, see Figure 2 and Figure 4 The mounting frame 30 is connected to a supporting frame, and the sliding block 41 is slidably connected to the supporting frame.

[0045] In this embodiment, a support frame is connected to the mounting frame 30, and the sliding block 41 is slidably connected to the support frame; the function of the support frame is to ensure that the sliding block 41 remains stable during the pushing and pulling process and to provide additional support.

[0046] Through the motor 31 and the gear transmission mechanism, the power of the motor 31 can be effectively transmitted to the push-pull rod structure, thereby realizing the push-pull function, and the gear transmission usually has a high transmission efficiency. The design of the mounting frame 30 and the support frame can ensure that the push-pull rod structure remains stable during the movement, reducing problems caused by vibration or instability, and improving the reliability and stability of the system. Through the motor 31 and the gear transmission mechanism, the push-pull rod structure can be accurately controlled, thereby realizing accurate positioning and adjustment of the lens or other equipment, and improving the accuracy and controllability of the system. The connection method of the sliding block 41 and the output shaft 32 can reduce the wear caused by friction, extend the service life of the system, and reduce the maintenance cost and the frequency of replacing parts.

[0047] In summary, the motor push-pull structure design can effectively realize the push-pull function, and has the characteristics of high efficiency, stability, precision and durability, and is suitable for application scenarios that require precise positioning and adjustment.

[0048] In one embodiment, see Figure 3 and Figure 4 The above-mentioned push-pull rod structure includes a push-pull rod 40, and the push-pull rod 40 is connected to a sliding block 41.

[0049] In one embodiment, see Figure 3 and Figure 4 The push-pull rod 40 includes a connecting rod 43 and a connecting block 42. One end of the connecting rod 43 is connected to the sliding block 41; the other end of the connecting rod 43 passes through the connecting block 42 and is connected to the lens barrel 20; the connecting block 42 is placed in the limiting guide groove.

[0050] In this embodiment, the sliding block 41 of the push-pull rod 40 is connected to the connecting rod 43 , and the sliding block 41 can move on the push-pull rod 40 .

[0051] One end of the connecting rod 43 of the push-pull rod 40 is connected to the sliding block 41, and the other end passes through the connecting block 42 to be connected to the lens barrel 20; the connecting block 42 is placed in the limiting guide groove to limit the movement range of the push-pull rod 40 or provide additional stability.

[0052] Since the sliding block 41 can move freely on the push-pull rod 40, the length of the push-pull rod 40 can be adjusted as needed, thereby changing the overall size or shape of the structure; by placing the connecting block 42 in the limiting guide groove, additional stability can be provided to ensure that the push-pull rod 40 will not lose control or shift during use; the connecting rod 43 passes through the connecting block 42 and is connected to the lens barrel 20, providing a strong connection strength to ensure the stability and reliability of the structure.

[0053] In one embodiment, see Figure 4 The guide structure 50 includes a guide block 51 and a guide rod 52 . The guide block 51 is placed in the limiting guide groove, and the guide rod 52 is connected to the guide block 51 . The other end of the guide rod 52 is connected to the lens barrel 20 .

[0054] In one embodiment, see Figure 4 The push-pull rod structure and the guide structure 50 are symmetrically arranged relative to the plane where the longitudinal axis of the lens barrel 20 is located.

[0055] The guide block 51 is placed in the limiting guide groove, and may be used to limit or guide the movement range of the push-pull rod 40 to provide additional stability.

[0056] The guide rod 52 is connected to the guide block 51, and the other end of the guide rod 52 is connected to the lens barrel 20. This guide structure 50 may help ensure that the push-pull rod 40 keeps moving along the expected trajectory during use, and the connection with the lens barrel 20 may provide additional support and stability.

[0057] The design and arrangement of the guide structure 50 provide additional stability, ensuring that the motion trajectory of the push-pull rod 40 during use is stable and controllable. The arrangement of the guide structure 50 provides additional support and guidance for the push-pull rod 40, which helps to reduce the swing or offset of the structure during movement. The planar symmetrical arrangement with the longitudinal axis of the lens barrel 20 may help achieve the balance and symmetry of the structure, and improve the aesthetics and stability of the overall design.

[0058] In one embodiment, during the machining process, the limiting guide groove of the sleeve 10 is formed at one time. When cooperating with the motor push-pull structure, the push-pull rod structure can simultaneously play the role of guiding and sliding groove limiting while realizing the function of pushing and pulling the lens barrel 20.

[0059] Specifically, the push-pull rod structure and the guide structure 50 are symmetrically arranged relative to the longitudinal axis of the lens barrel 20, and are connected through a guide block 51 and a guide rod 52; the guide block 51 is placed in the limit guide groove to ensure that the push-pull rod 40 moves along the expected trajectory during the push-pull process; the guide rod 52 is connected to the guide block 51, and the other end is connected to the lens barrel 20 to provide additional support and stability;

[0060] The guide structure 50 designed in this way can ensure that the push-pull rod 40 maintains a stable movement trajectory during use and avoids swinging or deviation.

[0061] Two limiting guide grooves are provided in the sleeve 10, and the push-pull rod structure and the guide structure 50 are respectively placed in the two limiting guide grooves; this design enables the push-pull rod structure to be subject to double limiting guidance during the pushing and pulling process, ensuring the stability and precise positioning of the lens during the pushing and pulling process; the existence of the limiting guide grooves limits the movement range of the push-pull rod structure, while providing additional support and stability to prevent the push-pull rod structure from swinging or deflecting during use.

[0062] To sum up, when the push-pull rod structure cooperates with the motor push-pull structure, the guidance and stability control of the push-pull process are achieved through the design and arrangement of the guide structure 50, and the limiting guide groove in the sleeve 10 plays the role of sliding groove limitation, thereby ensuring the accuracy and stability of the push-pull rod structure in the process of realizing the function of pushing and pulling the lens barrel 20.

[0063] The above-mentioned sliding structure for electric focusing of a short lens barrel is through the lens barrel 20, the sleeve 10, the guide structure 50, the push-pull rod structure and the motor push-pull structure; the motor push-pull structure is connected to the push-pull rod structure; the push-pull rod structure and the guide structure 50 are respectively connected to the lens barrel 20; the motor push-pull structure, while realizing the function of pushing and pulling the lens barrel 20, combines with the guide structure 50 and the limiting guide groove to play a guiding and sliding groove limiting role, and for the short lens barrel 20, the three functions of pushing and pulling, guiding and limiting are realized in the minimum space; the length size limitation in the prior art is overcome, and the assembly accuracy and processing accuracy requirements are reduced, thereby reducing the manufacturing cost.

[0064] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A sliding structure for electric focusing of a short lens barrel, characterized in that: It includes a lens barrel, a sleeve, a guide structure, a push-pull rod structure and a motor push-pull structure; the motor push-pull structure is connected to the push-pull rod structure; the push-pull rod structure and the guide structure are respectively connected to the lens barrel; the lens barrel is built in the sleeve, and the push-pull rod structure passes through the sleeve; Two limiting guide grooves are arranged in the sleeve, and the push-pull rod structure and the guide structure are respectively placed in the two limiting guide grooves.

2. A sliding structure for electric focusing of a short lens barrel according to claim 1, characterized in that: The motor push-pull structure includes a motor, an output shaft and a mounting frame, wherein the mounting frame is connected to the sleeve, the motor is mounted on the mounting frame, the motor is connected to the output shaft; and the output shaft is connected to the push-pull rod structure.

3. A sliding structure for electric focusing of a short lens barrel according to claim 2, characterized in that: The push-pull rod structure is connected to the output shaft via a sliding block.

4. A sliding structure for electric focusing of a short lens barrel according to claim 3, characterized in that: The sliding block is provided with a gear, the output shaft is provided with a gear, and the gear of the sliding block is meshed with the gear of the output shaft.

5. A sliding structure for electric focusing of a short lens barrel according to claim 4, characterized in that: The push-pull rod structure comprises a push-pull rod, and the push-pull rod is connected to the sliding block.

6. A sliding structure for electric focusing of a short lens barrel according to claim 5, characterized in that: The push-pull rod comprises a connecting rod and a connecting block, one end of the connecting rod is connected to the sliding block; the other end of the connecting rod passes through the connecting block and is connected to the lens barrel; the connecting block is placed in the limiting guide groove.

7. A sliding structure for electric focusing of a short lens barrel according to claim 6, characterized in that: The guide structure comprises a guide block and a guide rod, wherein the guide block is placed in the position-limiting guide groove, and the guide rod is connected to the guide block; the other end of the guide rod is connected to the lens barrel.

8. The sliding structure for electric focusing of a short lens barrel according to claim 1, characterized in that: The push-pull rod structure and the guide structure are arranged symmetrically relative to the plane where the longitudinal axis of the lens barrel is located.

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