Fixing structure of optical lens

Abstract

The utility model relates to the technical field of optical lenses, in particular to a fixing structure of an optical lens, which comprises a fixing seat, the fixing seat is connected with an optical lens part, the optical lens part comprises an upper fixing ring and a lower fixing ring, the sides, close to each other, of the upper fixing ring and the lower fixing ring are respectively provided with an annular recess, and the upper fixing ring and the lower fixing ring are respectively provided with a through hole. Optical lenses are arranged at the annular concave positions of the upper fixing ring and the lower fixing ring, the bottom of the lower fixing ring is fixedly connected with an installation sleeve, the fixing base is in a tubular design, and threads are arranged on the inner surface of the fixing base and the outer surface of the installation sleeve. According to the utility model, the optical lens part is divided into the upper fixing ring, the lower fixing ring and the optical lens which can be assembled and separated, so that the optical lens can be independently disassembled for cleaning and maintenance, meanwhile, the mounting between the fixing seat and the optical lens part can be completed only through a threaded connection mode, the operation is simple, and the cost is low. The use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to a fixing structure of an optical lens. Background Technique

[0002] An optical lens is an essential component in a machine vision system, which can control the depth of field, image distortion, improve clarity and details, and directly affect the quality of imaging.

[0003] In the prior art, such as a lens module and a camera device proposed in the patent application number "CN201922157959.7", the lens module includes: a lens optical part; a locking cover sleeved outside the lens optical part; and a base for fixing the lens optical part.

[0004] However, in the above patent application, the lens optical part is an integral whole and is fixed to the base together. When the optical lens inside is damaged or soiled, it is not convenient to replace and maintain the lens part inside or disassemble it for independent cleaning. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing structure of an optical lens to solve the problems raised in the above background technique.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A fixing structure of an optical lens includes a fixing base, an optical lens part is connected to the fixing base, the optical lens part includes an upper fixing ring and a lower fixing ring, annular recesses are formed on the sides of the upper fixing ring and the lower fixing ring close to each other, and optical lenses are arranged at the annular recesses of the upper fixing ring and the lower fixing ring.

[0008] The bottom of the lower fixing ring is fixedly connected with an installation sleeve, the fixing base is designed in a tubular shape, threads are arranged on the inner surface of the fixing base and the outer surface of the installation sleeve, the installation sleeve is threadedly connected with the fixing base, two symmetrically arranged clamping protrusions are fixedly connected to the top of the lower fixing ring, and two symmetrically arranged clamping grooves are formed at the bottom of the upper fixing ring, and the clamping protrusions and the clamping grooves are adapted to each other.

[0009] Preferably, a first protective washer is fixedly connected to the annular recess of the upper fixing ring, a second protective washer is fixedly connected to the annular recess of the lower fixing ring, and both the first protective washer and the second protective washer are adapted to the optical lens.

[0010] Preferably, an adjustment groove is formed inside the upper fixing ring, a return spring is fixedly connected to the adjustment groove, one end of the return spring is fixedly connected to a positioning block, and one end of the positioning block penetrates through the clamping protrusion and extends to the outside of the clamping protrusion.

[0011] Preferably, a ring-shaped clamping member is fixedly connected to the top of the fixed seat, and a ring-shaped clamping groove for cooperating with the ring-shaped clamping member is formed at the bottom of the lower fixing ring.

[0012] Preferably, a vertical cavity is formed in the upper fixing ring, a movable ring is arranged in the vertical cavity, a guiding shaft is fixedly connected to the movable ring, and the bottom of the guiding shaft penetrates through the lower fixing ring and extends into the interior of the ring-shaped clamping groove.

[0013] Preferably, an inclined groove is formed at the bottom of the positioning block, the top of the guiding shaft extends into the interior of the inclined groove and abuts against the positioning block.

[0014] Advantages of the utility model:

[0015] By dividing the optical lens part into three parts, namely an upper fixing ring, a lower fixing ring and an optical lens, which can be assembled and separated, the optical lens can be independently disassembled for cleaning and maintenance. At the same time, only by means of threaded connection, the installation between the fixed seat and the optical lens part can be completed. The operation is simple and convenient to use. When installing the fixed seat and the optical lens part, the ring-shaped clamping member will push the guiding shaft upward, and the positioning block passes through the clamping convex block, making the installation between the fixing ring and the lower fixing ring more stable. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the present utility model Figure 1 The cross-sectional view of the middle fixed seat;

[0019] Figure 3 is the present utility model Figure 2 The structural schematic diagram of the middle optical lens part;

[0020] Figure 4 is the present utility model Figure 3 The enlarged structural view of part A in the present utility model.

[0021] The reference numerals in the drawings are as follows:

[0022] 1. Fixed seat, 2. Optical lens part, 201. Upper fixing ring, 202. Lower fixing ring, 203. Optical lens, 3. Mounting sleeve, 4. Clamping protrusion, 5. Clamping groove, 6. First protective washer, 7. Second protective washer, 8. Adjusting groove, 9. Return spring, 10. Positioning block, 11. Ring-shaped clamping part, 12. Ring-shaped clamping groove, 13. Vertical cavity, 14. Movable ring, 15. Guide shaft, 16. Oblique groove. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0024] A fixing structure for an optical lens, including a fixed seat 1, an optical lens part 2 is connected to the fixed seat 1. The optical lens part 2 includes an upper fixing ring 201 and a lower fixing ring 202. Annular recesses are provided on the sides of the upper fixing ring 201 and the lower fixing ring 202 close to each other. Optical lenses 203 are provided at the annular recesses of the upper fixing ring 201 and the lower fixing ring 202.

[0025] The bottom of the lower fixing ring 202 is fixedly connected with a mounting sleeve 3. The fixed seat 1 is designed in a tubular shape. Threads are provided on the inner surface of the fixed seat 1 and the outer surface of the mounting sleeve 3. The mounting sleeve 3 is threadedly connected to the fixed seat 1. Two symmetrically arranged clamping protrusions 4 are fixedly connected to the top of the lower fixing ring 202. Two symmetrically arranged clamping grooves 5 are provided at the bottom of the upper fixing ring 201. The clamping protrusions 4 and the clamping grooves 5 are adapted to each other.

[0026] Such as Figure 1 , Figure 2 and Figure 3 , the optical lens 203 is a prior art and is one of the component structures of the optical lens part 2. The annular recesses on the upper fixing ring 201 and the lower fixing ring 202 are connected together. The optical lens 203 is located at the annular recess, positioning the optical lens 203 between the upper fixing ring 201 and the lower fixing ring 202. The fixed seat 1 is sleeved outside the mounting sleeve 3 and is threadedly connected to the mounting sleeve 3.

[0027] A first protective washer 6 is fixedly connected to the annular recess of the upper fixing ring 201, and a second protective washer 7 is fixedly connected to the annular recess of the lower fixing ring 202. The first protective washer 6 and the second protective washer 7 are both adapted to the optical lens 203.

[0028] Such as Figure 2And Figure 3 The first protective washer 6 fits on the top and around the optical lens 203, and the second protective washer 7 fits on the bottom and around the optical lens 203, which can provide flexible anti-pressure protection for the optical lens 203.

[0029] An adjustment groove 8 is formed inside the upper fixing ring 201. A return spring 9 is fixedly connected inside the adjustment groove 8. One end of the return spring 9 is fixedly connected with a positioning block 10, and one end of the positioning block 10 penetrates through the clamping projection 4 and extends to the outside of the clamping projection 4.

[0030] As Figure 3 And Figure 4 There is an opening on the clamping projection 4 to facilitate the positioning block 10 to pass through. The return spring 9 has a pulling force on the positioning block 10 in a direction away from the clamping projection 4.

[0031] The top of the fixed seat 1 is fixedly connected with an annular clamping member 11, and an annular clamping groove 12 for cooperating with the annular clamping member 11 is formed at the bottom of the lower fixing ring 202.

[0032] As Figure 2 、 Figure 3 And Figure 4 When the fixed seat 1 is threadedly connected to the mounting sleeve 3, the annular clamping member 11 can be clamped into the inside of the annular clamping groove 12.

[0033] A vertical cavity 13 is formed inside the upper fixing ring 201. A movable ring 14 is arranged inside the vertical cavity 13. A guide shaft 15 is fixedly connected to the movable ring 14. The bottom of the guide shaft 15 penetrates through the lower fixing ring 202 and extends to the inside of the annular clamping groove 12.

[0034] As Figure 2 、 Figure 3 And Figure 4 The bottom of the guide shaft 15 abuts against the annular clamping member 11, so that the guide shaft 15 cannot move downward. The movable ring 14 is located inside the vertical cavity 13, so that the guide shaft 15 fixed to the movable ring 14 cannot be separated from the inside of the upper fixing ring 201.

[0035] An inclined groove 16 is arranged at the bottom of the positioning block 10. The top of the guide shaft 15 extends into the inclined groove 16 and abuts against the positioning block 10.

[0036] As Figure 3 And Figure 4 The top of the guide shaft 15 abuts against the inclined groove 16 of the positioning block 10, which can prevent the positioning block 10 from moving.

[0037] The working principle of a fixing structure of an optical lens provided by the present utility model is as follows:

[0038] By snapping the clamping bump 4 into the clamping groove 5, the fixing ring 201 and the lower fixing ring 202 can be clamped together, and the optical lens 203 is clamped between the fixing ring 201 and the lower fixing ring 202 to complete the assembly of the optical lens part 2. At the same time, the optical lens part 2 is fixed by the threaded connection between the mounting sleeve 3 and the fixing base 1;

[0039] When the fixing base 1 is threadedly connected to the mounting sleeve 3, the annular clamping member 11 snaps into the annular clamping groove 12 and pushes the guide shaft 15 upward. The guide shaft 15 presses against the inner wall of the inclined slot 16, causing the positioning block 10 to pass through the clamping bump 4 and positioning the clamping bump 4 inside the clamping groove 5;

[0040] Conversely, when separating the fixing base 1 and the mounting sleeve 3, the annular clamping member 11 disengages from the annular clamping groove 12 and no longer presses against the guide shaft 15. At this time, the return spring 9 pulls the positioning block 10 away from the clamping bump 4, and the positioning block 10 and the clamping bump 4 are separated. Then, the fixing ring 201 and the lower fixing ring 202 can be separated up and down to remove the optical lens 203;

[0041] While the positioning block 10 is moving, the inner wall of the inclined slot 16 presses against the guide shaft 15, causing the guide shaft 15 to move downward and not obstruct the movement of the positioning block 10.

[0042] Compared with the related art, a fixing structure of an optical lens provided by the present utility model has the following

[0043] Beneficial effects:

[0044] In the present utility model, the optical lens part 2 is divided into three parts: an upper fixing ring 201, a lower fixing ring 202, and an optical lens 203 that can be assembled and separated. This enables the optical lens 203 to be independently disassembled for cleaning and maintenance. At the same time, only by means of threaded connection, the installation between the fixing base 1 and the optical lens part 2 can be completed. The operation is simple and convenient to use. When installing the fixing base 1 and the optical lens part 2, the annular clamping member 11 will push the guide shaft 15 upward, and the positioning block 10 passes through the clamping bump 4, making the installation between the fixing ring 201 and the lower fixing ring 202 more stable.

[0045] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A fixing structure for an optical lens, comprising a fixing base (1), characterized in that, An optical lens part (2) is connected to the fixed seat (1). The optical lens part (2) includes an upper fixing ring (201) and a lower fixing ring (202). Annular recesses are provided on one side of the upper fixing ring (201) and the lower fixing ring (202) close to each other. An optical lens (203) is provided at the annular recess of the upper fixing ring (201) and the lower fixing ring (202). An installation sleeve (3) is fixedly connected to the bottom of the lower fixing ring (202). The fixed seat (1) is designed in a tubular shape. Threads are provided on the inner surface of the fixed seat (1) and the outer surface of the installation sleeve (3). The installation sleeve (3) is threadedly connected to the fixed seat (1). Two symmetrically arranged clamping protrusions (4) are fixedly connected to the top of the lower fixing ring (202). Two symmetrically arranged clamping grooves (5) are provided at the bottom of the upper fixing ring (201). The clamping protrusions (4) and the clamping grooves (5) are adapted to each other.

2. The fixed structure of an optical lens according to claim 1, characterized in that, A first protective washer (6) is fixedly connected to the annular recess of the upper fixing ring (201). A second protective washer (7) is fixedly connected to the annular recess of the lower fixing ring (202). The first protective washer (6) and the second protective washer (7) are both adapted to the optical lens (203).

3. The fixed structure of an optical lens according to claim 1, characterized in that, An adjustment groove (8) is provided inside the upper fixing ring (201). A return spring (9) is fixedly connected inside the adjustment groove (8). One end of the return spring (9) is fixedly connected to a positioning block (10). One end of the positioning block (10) penetrates through the clamping protrusion (4) and extends to the outside of the clamping protrusion (4).

4. The fixed structure of an optical lens according to claim 3, characterized in that, An annular clamping member (11) is fixedly connected to the top of the fixed seat (1). An annular clamping groove (12) for cooperating with the annular clamping member (11) is provided at the bottom of the lower fixing ring (202).

5. The fixed structure of an optical lens according to claim 4, characterized in that, A vertical cavity (13) is provided inside the upper fixing ring (201). A movable ring (14) is provided inside the vertical cavity (13). A guide shaft (15) is fixedly connected to the movable ring (14). The bottom of the guide shaft (15) penetrates through the lower fixing ring (202) and extends to the inside of the annular clamping groove (12).

6. The fixed structure of an optical lens according to claim 5, characterized in that, An inclined groove (16) is provided at the bottom of the positioning block (10). The top of the guide shaft (15) extends to the inside of the inclined groove (16) and abuts against the positioning block (10).

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