Tilt angle adjustment structure, lens assembly and photographic equipment

Abstract

The present invention discloses a tilt angle adjustment structure, a lens assembly and a photographic device, wherein the tilt angle adjustment structure comprises a fixed part, a floating part, a plurality of rolling support bodies, a magnetic structure and a height adjustment structure; the floating part and the fixed part are arranged relative to each other, and one of the floating part and the fixed part is a load-bearing mounting part; a plurality of rolling support bodies are arranged on the load-bearing mounting part and are located between the fixed part and the floating part, and are used to support the floating part on the fixed part, and at least part of the plurality of rolling support bodies are arranged as height-adjusting rolling support bodies; the magnetic structure is arranged between the fixed part and the floating part; the height adjustment structure is arranged between the load-bearing mounting part and the height-adjusting rolling support body, and is used to adjust the height of the height-adjusting rolling support body protruding from the load-bearing mounting part; one or more height-adjusting rolling support bodies are adjusted by the height adjustment structure to correct the tilt of the lens, and the correction operation is simple and easy to implement, thereby improving the correction efficiency and thus improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of photographic equipment, and in particular to a tilt angle adjustment structure, a lens assembly and photographic equipment. Background Art

[0002] Lenses are used in existing photographic equipment. Taking zoom lenses as an example, zoom lenses have a fixed lens group and a movable lens group. The lens focusing is achieved by moving the movable lens group. During the lens assembly process, due to the dimensional errors in the production of parts and the assembly errors, the fixed lenses and the movable lenses will be tilted at different angles, which reduces the focusing accuracy of the zoom lens. Summary of the invention

[0003] The present invention mainly provides a tilt angle adjustment structure, a lens assembly and a photographic device, aiming to solve the problem that the existing lens is tilted due to part size error or assembly error.

[0004] The main purpose of the present invention is to provide a tilt angle adjustment structure, comprising:

[0005] Fixings;

[0006] A floating member, arranged opposite to the fixing member, wherein one of the floating member and the fixing member is a load-bearing mounting member;

[0007] A plurality of rolling support bodies are arranged on the bearing mounting member and between the fixing member and the floating member, and are used to support the floating member on the fixing member, and at least part of the plurality of rolling support bodies are arranged to be height-adjusting rolling support bodies;

[0008] A magnetic attraction structure is provided between the fixing member and the floating member; and

[0009] The height adjustment structure is arranged between the bearing mounting member and the height-adjusting rolling support body, and is used for adjusting the height of the height-adjusting rolling support body protruding from the bearing mounting member.

[0010] Optionally, the magnetic attraction structure includes a first magnet and a magnetic attraction portion that are magnetically attracted to each other, and the first magnet is arranged on a side of the floating member facing away from the fixed member;

[0011] Correspondingly, the magnetic attraction portion is arranged on a side of the fixing member facing away from the floating member.

[0012] Optionally, the tilt angle adjustment structure includes a plurality of adjustment sheets, and at least some of the adjustment sheets have different thickness settings;

[0013] The height adjustment structure includes the adjustment pieces of different thicknesses and / or quantities.

[0014] Optionally, the fixing member is configured as the load-bearing mounting member;

[0015] The fixing member is provided with a plurality of mounting holes at intervals;

[0016] The adjustment sheet in the height adjustment structure is at least partially located in the mounting hole;

[0017] Each of the rolling support bodies is arranged in the corresponding mounting hole and abuts against the end surface of the adjustment sheet in the height adjustment structure.

[0018] Optionally, a clamping portion is convexly provided on the inner wall of the mounting hole;

[0019] The adjustment sheet includes a sheet body and a plurality of fixing claws protruding outward from the periphery of the sheet body, wherein the sheet body is at least partially disposed in the mounting hole and is engaged with the engaging portion, and the plurality of fixing claws are arranged at intervals and are buckled on the periphery of the mounting hole;

[0020] Each of the rolling support bodies is in contact with the end surface of the sheet body.

[0021] Optionally, a plurality of abutment portions are provided on a side of the floating member facing the fixed member, and the plurality of abutment portions correspond one-to-one to the plurality of mounting holes to jointly limit the corresponding rolling support bodies.

[0022] Optionally, on the side facing the floating member, an annular limiting protrusion is protruded from the periphery of each mounting hole to limit the rolling support body.

[0023] The present invention also provides a lens assembly, including a tilt angle adjustment structure, wherein the tilt angle adjustment structure includes:

[0024] Fixings;

[0025] A floating member, arranged opposite to the fixing member, wherein one of the floating member and the fixing member is a load-bearing mounting member;

[0026] A plurality of rolling support bodies are arranged on the bearing mounting member and between the fixing member and the floating member, and are used to support the floating member on the fixing member, and at least part of the plurality of rolling support bodies are arranged to be height-adjusting rolling support bodies;

[0027] A magnetic attraction structure is provided between the fixing member and the floating member; and

[0028] The height adjustment structure is arranged between the bearing mounting member and the height-adjusting rolling support body, and is used for adjusting the height of the height-adjusting rolling support body protruding from the bearing mounting member.

[0029] The present invention also provides a photographing device, comprising a lens assembly, wherein the lens assembly comprises a tilt angle adjustment structure, and the tilt angle adjustment structure comprises:

[0030] Fixings;

[0031] A floating member, arranged opposite to the fixing member, wherein one of the floating member and the fixing member is a load-bearing mounting member;

[0032] A plurality of rolling support bodies are arranged on the bearing mounting member and between the fixing member and the floating member, and are used to support the floating member on the fixing member, and at least part of the plurality of rolling support bodies are arranged to be height-adjusting rolling support bodies;

[0033] A magnetic attraction structure is provided between the fixing member and the floating member; and

[0034] The height adjustment structure is arranged between the bearing mounting member and the height-adjusting rolling support body, and is used for adjusting the height of the height-adjusting rolling support body protruding from the bearing mounting member.

[0035] Optionally, the photographic equipment includes a security camera.

[0036] In the technical solution of the present invention, the floating part and the fixed part are arranged opposite to each other, and one of them is a load-bearing mounting part, and a lens is mounted on the floating part; a plurality of rolling support bodies are used to support the floating part on the fixed part; a magnetic attraction structure is arranged between the fixed part and the floating part to form a suspension structure together with the plurality of rolling support bodies, so that the floating part and the fixed part are relatively fixed. Since the height adjustment structure is arranged between the load-bearing mounting part and the height-adjusting rolling support body, the height of the height-adjusting rolling support body protruding from the load-bearing mounting part can be adjusted; during assembly, when the lens is tilted due to part size error or assembly error, one or more height-adjusting rolling support bodies on the opposite side of the tilt are adjusted through the height adjustment structure to correct the tilt of the lens. In this way, not only can the lens be corrected and the photographic accuracy of the photographic equipment be improved, but the correction operation is also simple and easy to implement, thereby improving the correction efficiency of the lens and thus improving the production efficiency of the photographic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0038] Figure 1 A schematic structural diagram of an embodiment of a tilt angle adjustment structure provided by the present invention;

[0039] Figure 2 for Figure 1 A structural schematic diagram of another perspective of the fixing member;

[0040] Figure 3 for Figure 1 A schematic diagram of the structure of the floating part in FIG.

[0041] Figure 4 for Figure 1 A schematic diagram of the structure of the adjustment piece in FIG.

[0042] Figure 5 for Figure 1 Schematic diagram of the assembly structure of the tilt angle adjustment structure.

[0043] Description of the accompanying drawings of the embodiments provided by the present invention:

[0044] Label name Label name 100 Tilt angle adjustment structure 41 First magnet 1 Fixings 42 Magnetic suction part 11 Mounting holes 5 Height adjustment structure 12 Annular limit protrusion 51 Adjustment piece 2 Floating parts 6 Flexible circuit board 21 Butt part 7 Limiting structure 3 Rolling support 71 Limit boss 31 Raise the rolling support 72 Cover 4 Magnetic structure 8 lens

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] Lenses are used in existing photographic equipment. Taking zoom lenses as an example, zoom lenses have a fixed lens group and a movable lens group. The lens focusing is achieved by moving the movable lens group. During the lens assembly process, due to the dimensional errors in the production of parts and the assembly errors, the fixed lenses and the movable lenses will be tilted at different angles, which reduces the focusing accuracy of the zoom lens.

[0050] In view of this, the present invention provides a tilt angle adjustment structure, a lens assembly and a photographic device. Figures 1 to 5 This is a specific embodiment of the tilt angle adjustment structure provided by the present invention.

[0051] See also Figures 1 to 5 The tilt angle adjustment structure 100 includes a fixed part 1, a floating part 2, a plurality of rolling support bodies 3, a magnetic structure 4 and a height adjustment structure 5; the floating part 2 is arranged opposite to the fixed part 1, and one of the floating part 2 and the fixed part 1 is a load-bearing mounting part; the plurality of rolling support bodies 3 are arranged on the load-bearing mounting part and are located between the fixed part 1 and the floating part 2, so as to support the floating part 2 on the fixed part 1, and at least part of the plurality of rolling support bodies 3 are arranged as height-adjusting rolling support bodies 31; the magnetic structure 4 is arranged between the fixed part 1 and the floating part 2; the height adjustment structure 5 is arranged between the load-bearing mounting part and the height-adjusting rolling support body 31, so as to adjust the height of the height-adjusting rolling support body 31 protruding from the load-bearing mounting part.

[0052] In the technical solution of the present invention, the floating member 2 is arranged opposite to the fixed member 1, and one of them is a load-bearing mounting member, and a lens 8 is installed on the floating member 2; a plurality of rolling support bodies 3 are used to support the floating member 2 on the fixed member 1; a magnetic attraction structure 4 is arranged between the fixed member 1 and the floating member 2 to form a suspension structure together with the plurality of rolling support bodies 3, so that the floating member 2 and the fixed member 1 are relatively fixed, and since the height adjustment structure 5 is arranged between the load-bearing mounting member and the height-adjusting rolling support body 31, the height of the height-adjusting rolling support body 31 protruding from the load-bearing mounting member can be adjusted; during assembly, when the lens 8 is tilted due to part size error or assembly error, one or more of the height-adjusting rolling support bodies 31 on the opposite side of the tilt are adjusted through the height adjustment structure 5 to correct the tilt of the lens 8. In this way, not only can the lens 8 be corrected and the photographic accuracy of the photographic equipment be improved, but the correction operation is also simple and easy to implement, thereby improving the correction efficiency of the lens 8 and thus improving the production efficiency of the photographic equipment.

[0053] In this embodiment, the lens 8 is mounted on the floating member 2, and a flexible circuit board 6 is provided on the side of the fixed member 1 facing the floating member 2. The flexible circuit board 6 is electrically connected to the floating member 2 and a power source to realize the photographic function of the photographic device.

[0054] Specifically, the magnetic attraction structure 4 includes a first magnet 41 and a magnetic attraction portion 42 that are magnetically attracted to each other. It should be noted that the present invention does not limit the specific installation positions of the first magnet 41 and the magnetic attraction portion 42. The first magnet 41 may be arranged on the fixing member 1, and the magnetic attraction portion 42 may be arranged on the floating member 2. In this embodiment, please refer to Figure 2 , the first magnet 41 is arranged on the side of the floating part 2 facing away from the fixed part 1; correspondingly, the magnetic attraction part 42 is arranged on the side of the fixed part 1 facing away from the floating part 2; since the flexible circuit board 6 is arranged on the side of the fixed part 1 facing the floating part 2, in order not to interfere with the flexible circuit board 6, the magnetic attraction part 42 is arranged on the side of the fixed part 1 facing away from the floating part 2. In this way, the magnetic attraction structure 4 is arranged without changing the original structure of the lens assembly, which has a simple structure and is easy to operate.

[0055] The present invention does not limit the specific form of the magnetic attraction part 42. The magnetic attraction part 42 can be a second magnet. In the present embodiment, the magnetic attraction part 42 is configured as a metal sheet. Since the magnetic attraction part 42 is provided on the fixing member 1, the magnetic attraction part 42 is configured as a metal sheet, which can not only realize the adsorption function of the first magnet 41, but also will not interfere with the function of the flexible circuit board 6.

[0056] The present invention does not limit the specific shapes of the first magnet 41 and the magnetic attraction portion 42, which can be circular or polygonal. Specifically, in this embodiment, the first magnet 41 and the magnetic attraction portion 42 are both configured as quadrilaterals, which can better adapt to the structural characteristics of the fixing member 1 and the floating member 2 and are more convenient to configure.

[0057] It should be noted that the tilt angle adjustment structure 100 includes a plurality of adjustment plates 51, and at least some of the adjustment plates 51 have different thickness settings; the height adjustment structure 5 includes a plurality of adjustment plates 51; by setting a plurality of adjustment plates 51 between the load-bearing mounting member and the height-adjusting rolling support body 31, the height of the height-adjusting rolling support body 31 protruding from the load-bearing mounting member can be adjusted, which not only has a simple structure and low cost, but also is easy to operate and has high adjustment efficiency.

[0058] In the present invention, the height adjustment structure 5 includes adjustment plates 51 of different thicknesses. During assembly, when the lens 8 is tilted due to part size error or assembly error, the adjustment plates 51 of different thicknesses are arranged between one or more height-adjusting rolling supports 31 on the opposite side of the tilt and the load-bearing mounting member to correspondingly correct the lens 8. In this way, the tilt angle of the lens 8 can be corrected by only changing the thickness of the adjustment plate 51. The correction operation is simple and easy to implement, thereby improving the correction efficiency of the lens 8 and thus improving the production efficiency of the photographic equipment.

[0059] In the present invention, the height adjustment structure 5 includes different numbers of adjustment plates 51; during assembly, when the lens 8 is tilted due to part size error or assembly error, different numbers of adjustment plates 51 are set between one or more height adjustment rolling support bodies 31 on the opposite side of the tilt and the load-bearing mounting member to correspondingly correct the lens 8. In this way, the tilt angle of the lens 8 can be corrected by only changing the number of the adjustment plates 51. The correction operation is simple and easy to implement, which improves the correction efficiency of the lens 8 and thereby improves the production efficiency of the photographic equipment.

[0060] It should be noted that the above two technical features can be set selectively or simultaneously. Specifically, in the present embodiment, the above two technical features are set simultaneously, that is, the height adjustment structure 5 includes adjustment plates 51 of different thicknesses and different numbers. During assembly, when the lens 8 is tilted due to part size error or assembly error, the adjustment plates 51 of different thicknesses and numbers are set between one or more of the height adjustment rolling supports 31 on the opposite side of the tilt and the load-bearing mounting member to correspondingly correct the lens 8. In this way, the tilt angle of the lens 8 can be corrected by matching the adjustment plates 51 of different thicknesses and different numbers. The correction operation is simple and easy to implement, which improves the correction efficiency of the lens 8 and thus improves the production efficiency of the photographic equipment.

[0061] The present invention does not limit the specific form of the load-bearing mounting member, and the floating member 2 may be set as the load-bearing mounting member; in this embodiment, the fixing member 1 is set as the load-bearing mounting member; a plurality of mounting holes 11 are spaced apart on the fixing member 1; the adjustment sheet 51 in the height adjustment structure 5 is at least partially located in the mounting hole 11; each of the rolling support bodies 3 is arranged in the corresponding mounting hole 11 and abuts against the end face of the adjustment sheet 51 in the height adjustment structure 5; by opening the mounting hole 11 on the fixing member 1, at least part of the adjustment sheet 51 is located in the mounting hole 11 to form a mounting groove together with the mounting hole 11, each of the rolling support bodies 3 is arranged in the corresponding mounting hole 11 and abuts against the end face of the adjustment sheet 51 in the height adjustment structure 5, so that the rolling support body 3 will not fall out of the mounting hole 11, thereby improving the stability of the rolling support body 3 and thereby improving the correction accuracy of the inclination angle adjustment structure 100.

[0062] Specifically, see Figure 3 , a clamping portion is protruding on the inner wall of the mounting hole 11; the adjustment sheet 51 includes a sheet body and a plurality of fixing claws protruding outward from its periphery, the sheet body is at least partially arranged in the mounting hole 11 and clamped with the clamping portion, and the plurality of fixing claws are arranged at intervals and buckled on the periphery of the mounting hole 11; each of the rolling support bodies 3 abuts against the end face of the sheet body; the clamping portion is provided to clamp with the sheet body to further ensure the stability of the installation of the adjustment sheet 51, and the plurality of fixing claws provided on the periphery of the sheet body are buckled on the periphery of the mounting hole 11 to ensure that the sheet body is firmly installed in the mounting hole 11 and will not fall off; thereby further improving the stability of the rolling support body 3, and then improving the correction accuracy of the inclination angle adjustment structure 100.

[0063] It should be noted that the sheet body is arranged on the side of the fixing member 1 facing away from the floating member 2, and is at least partially arranged in the mounting hole 11 to form a mounting groove with an opening facing the floating member 2 together with the mounting hole 11. The plurality of fixing claws are arranged corresponding to the side of the fixing member 1 facing away from the floating member 2, and are buckled on the periphery of the mounting hole 11. In this way, when it is necessary to adjust the thickness or quantity of the adjustment sheet 51 according to actual detection conditions, there is no need to remove the accessory. The original adjustment sheet 51 can be removed from the side of the fixing member 1 facing away from the floating member 2, and a suitable adjustment sheet 51 can be replaced. In this way, the operation is simple and easy to implement, and the correction efficiency of the lens 8 is further improved, thereby further improving the production efficiency of the photographic equipment.

[0064] In order to ensure the stability of the floating member 2, in the present invention, a plurality of abutment portions 21 are provided on the side of the floating member 2 facing the fixed member 1, and the plurality of abutment portions 21 correspond one-to-one to the plurality of mounting holes 11 to jointly limit the corresponding rolling support bodies 3; by correspondingly providing the mounting holes 11 and the abutment portions 21 on the fixed member 1 and the floating member 2 respectively to jointly limit the rolling support body 3, the rolling support body 3 can better support the floating member 2, thereby improving the stability of the floating member 2.

[0065] The present invention does not limit the specific form of the rolling support body 3. In the present embodiment, the rolling support body 3 is configured as a ball bearing, which is disposed in the corresponding mounting hole 11 and partially protrudes from the fixing member 1 to one side of the floating member 2 to support the floating member 2. By providing the ball bearing, the adjustment of the rolling support body 3 is more flexible and free.

[0066] In order to ensure the stability of the rolling support body 3, in the present invention, on the side facing the floating member 2, the periphery of each mounting hole 11 is provided with an annular limiting protrusion 12 to limit the rolling support body 3; the annular limiting protrusion 12 is provided to prevent the rolling support body 3 from falling from the side facing the floating member 2 from the fixing member 1, thereby improving the stability of the rolling support body 3, and further improving the stability of the inclination angle adjustment structure 100, and improving the correction accuracy of the inclination angle adjustment structure 100.

[0067] In the present invention, please refer to Figure 1 and Figure 4 A limiting structure 7 is provided on the fixing member 1 on a side facing the floating member 2. The limiting structure 7 includes a plurality of limiting bosses 71 spaced apart along the circumference of the fixing member 1. Each of the limiting bosses 71 extends toward one side of the floating member 2 to limit the floating member 2, thereby further ensuring the stability of the floating member 2.

[0068] Specifically, each of the limiting bosses 71 protrudes out of the floating member 2, and the limiting structure 7 also includes a cover plate 72, which is arranged on the multiple limiting bosses 71 to cover the floating member 2, and a receiving hole 721 is opened on the cover plate 72 to allow the lens 8 on the floating member 2 to be exposed from the receiving hole 721; in this way, the cover plate 72 further limits the floating member 2, thereby further ensuring the stability of the floating member 2.

[0069] The present invention also provides a lens assembly, which includes a tilt angle adjustment structure 100. It should be noted that the tilt angle adjustment structure 100 is the above-mentioned tilt angle adjustment structure 100, that is, the lens assembly includes all the technical features of the above-mentioned tilt angle adjustment structure 100, and the lens assembly also includes all the beneficial effects brought about by all the technical features of the above-mentioned tilt angle adjustment structure 100, which will not be repeated here one by one.

[0070] The present invention does not limit the specific form of the lens assembly. The lens assembly can be a common photographic lens or a zoom lens. Specifically, in this embodiment, the lens assembly is configured as a zoom lens, and the tilt angle adjustment structure 100 is provided on the zoom lens to make the position of the lens more precise, thereby making the focusing of the zoom lens more precise.

[0071] Specifically, the lens assembly includes a lens barrel, a fixed lens group and a movable lens group. The lens barrel has a cavity, and a through hole connected to the cavity is opened at one end along its length direction; the fixed lens group includes a fixed lens arranged on the inner wall of the through hole; the movable lens group is arranged in the cavity, including a movable lens that can move along the length direction of the lens barrel so as to be able to approach and move away from the fixed lens; wherein the tilt angle adjustment structure 100 is arranged in the lens assembly to correct the tilt angle of the lens.

[0072] In the present invention, the tilt angle adjustment structure 100 is arranged on the fixed lens group to adjust the tilt angle of the fixed lens in the width direction of the lens barrel; through the tilt angle adjustment structure 100, not only can the fixed lens be corrected to improve the shooting accuracy of the lens assembly, but the correction operation is simple and easy to implement, thereby improving the correction efficiency of the lens 8, thereby improving the production efficiency of the lens assembly.

[0073] In the present invention, the tilt angle adjustment structure 100 is arranged on the movable lens group to adjust the tilt angle of the movable lens in the width direction of the lens barrel; the tilt angle adjustment structure 100 can not only realize the correction of the movable lens and improve the shooting accuracy of the lens assembly, but also the correction operation is simple and easy to implement, thereby improving the correction efficiency of the lens, thereby improving the production efficiency of the lens assembly.

[0074] It should be noted that the above two technical features can be set selectively or simultaneously. Specifically, in the present embodiment, the above two technical features are set simultaneously, that is, the tilt angle adjustment structure 100 is provided on the fixed lens group and the movable lens group; through the tilt angle adjustment structure 100, not only the fixed lens and the movable lens can be corrected, thereby improving the shooting accuracy of the lens assembly, but also the correction operation is simple and easy to implement, thereby improving the correction efficiency of the lens, thereby improving the production efficiency of the lens assembly.

[0075] The present invention also provides a photographic device, which includes a lens assembly, and the lens assembly is the above-mentioned lens assembly, that is, the photographic device includes all the technical features of the above-mentioned lens assembly, and the photographic device also includes all the beneficial effects brought about by all the technical features of the above-mentioned lens assembly, which will not be described one by one here.

[0076] In this embodiment, the photographic equipment includes a security camera, and the security camera includes a zoom lens. The fixed lens group and the movable lens group of the zoom lens are both provided with the tilt angle adjustment structure 100. The tilt angle adjustment structure 100 can not only realize the correction of the fixed lens and the movable lens, and improve the zoom accuracy of the zoom lens, thereby improving the shooting accuracy of the security camera; but also the correction operation is simple and easy to implement, thereby improving the correction efficiency of the lens, thereby improving the production efficiency of the photographic equipment.

[0077] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tilt angle adjustment structure, characterized in that: include: Fixings; A floating member, arranged opposite to the fixing member, wherein one of the floating member and the fixing member is a load-bearing mounting member; A plurality of rolling support bodies are arranged on the bearing mounting member and between the fixing member and the floating member, and are used to support the floating member on the fixing member, and at least part of the plurality of rolling support bodies are arranged to be height-adjusting rolling support bodies; A magnetic attraction structure is provided between the fixing member and the floating member; and A height adjustment structure, disposed between the load-bearing mounting member and the height-adjusting rolling support body, for adjusting the height of the height-adjusting rolling support body protruding from the load-bearing mounting member; The tilt angle adjustment structure comprises a plurality of adjustment plates, at least some of which have different thickness settings; The height adjustment structure includes the adjustment pieces of different thickness and / or quantity; The fixing member is configured as the load-bearing mounting member; The fixing member is provided with a plurality of mounting holes at intervals; The adjustment sheet in the height adjustment structure is at least partially located in the mounting hole; Each of the rolling support bodies is disposed in the corresponding mounting hole and abuts against the end surface of the adjustment sheet in the height adjustment structure; A plurality of abutment portions are arranged on one side of the floating member facing the fixed member, and the plurality of abutment portions correspond to the plurality of mounting holes one by one to jointly limit the corresponding rolling support bodies.

2. The tilt angle adjustment structure according to claim 1, characterized in that: The magnetic attraction structure comprises a first magnet and a magnetic attraction portion that are magnetically attracted to each other, wherein the first magnet is arranged on a side of the floating member facing away from the fixed member; Correspondingly, the magnetic attraction portion is arranged on a side of the fixing member facing away from the floating member.

3. The tilt angle adjustment structure according to claim 1, characterized in that: A clamping portion is convexly provided on the inner wall of the mounting hole; The adjustment sheet includes a sheet body and a plurality of fixing claws protruding outward from the periphery of the sheet body, wherein the sheet body is at least partially disposed in the mounting hole and is engaged with the engaging portion, and the plurality of fixing claws are arranged at intervals and are buckled on the periphery of the mounting hole; Each of the rolling support bodies is in contact with the end surface of the sheet body.

4. The tilt angle adjustment structure according to claim 1, characterized in that: On the side facing the floating member, an annular limiting protrusion is protruded from the periphery of each mounting hole to limit the rolling support body.

5. A lens assembly, characterized in that: It comprises the tilt angle adjustment structure as described in any one of claims 1 to 4.

6. A photographic device, characterized in that: Comprising the lens assembly as claimed in claim 5.

7. The photographing device according to claim 6, characterized in that: The photographic equipment includes a security camera.

Images