CN215344744U

CN215344744U - Endoscope camera assembly and endoscope

Info

Publication number: CN215344744U
Application number: CN202121216474.1U
Authority: CN
Inventors: 方志芳; 邓波; 辛远军; 李翔; 王昭
Original assignee: Shenzhen Topband Co Ltd
Current assignee: Shenzhen Topband Co Ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-28
Anticipated expiration: 2031-06-01

Abstract

The utility model is suitable for the field of nondestructive testing tools, and provides an endoscope camera assembly and an endoscope. The endoscope camera assembly includes: the shell is provided with a first channel for light passing; the lens is fixedly arranged at the end part of the first channel; the lens is arranged in the first channel and is abutted against the lens; the light supplementing element is arranged in the first channel and arranged around the circumference of the lens; the light absorbing piece is arranged between the light supplementing element and the lens and along the circumferential direction of the lens, and the light absorbing piece is attached to the lens. The endoscope camera assembly provided by the embodiment of the utility model can simplify the structure, reduce the installation difficulty and reduce the production cost.

Description

Endoscope camera assembly and endoscope

Technical Field

The utility model belongs to the field of nondestructive testing tools, and particularly relates to an endoscope camera assembly and an endoscope.

Background

The endoscope is a multi-disciplinary universal tool, and has the functions of probing the deep part of a bent pipeline, observing the part which cannot be directly observed, observing the structure and the state of an internal space in a sealed cavity, and realizing remote observation and operation, such as but not limited to detection of the interior of an automobile engine or a sewer. The endoscope is owing to need not light or the extremely insufficient occasion work of light, need pass the image of overhauing the position back computer in order assisting maintainer work when using, consequently, is equipped with the light filling component that is used for supplementing light to the environment on the endoscope so that the camera lens can catch the image, and leads to image quality not good in getting into the camera lens in order to avoid the light that light filling component produced, consequently need set up and prevent scurrying light structure in order to prevent to scurrying light. The existing endoscope generally adopts a lens to be eccentrically arranged, the lens is independently covered on the lens to form a light fleeing prevention structure, the light supplementing element is arranged beside the lens, and then the light supplementing element is subjected to sealing treatment. The endoscope with the structure needs to independently install the lens and the light supplementing element, so that the structure of the endoscope is complex, and the lens and the lamp post are small and need to be installed in a waterproof mode, so that the assembly difficulty is high, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides an endoscope camera assembly, and aims to solve the problems that in the prior art, an endoscope is complex in structure due to the fact that a lens and a light supplement element need to be independently installed, assembly difficulty is high due to the fact that lenses and lamp posts are very small and waterproof installation is needed, and production cost is increased.

The present invention is thus achieved, an endoscopic camera assembly comprising:

the shell is provided with a first channel for light passing;

the lens is fixedly arranged at the end part of the first channel;

the lens is arranged in the first channel and is abutted against the lens;

the light supplementing element is arranged in the first channel and arranged around the circumference of the lens;

the light absorbing piece is arranged between the light supplementing element and the lens and along the circumferential direction of the lens, and the light absorbing piece is attached to the lens.

Furthermore, the light absorbing member is made of black materials.

Further, the inner wall of the first channel is provided with a step, the lens is clamped on the step and fixed, and the lens is flush with the surface of the shell or lower than the surface of the shell.

Further, the endoscopic camera assembly further comprises:

the inner sleeve is arranged in the first channel and sleeved outside the lens, and the light supplementing element and the light absorbing piece are fixed at the end part of the inner sleeve facing the lens;

and the lens seat is arranged in the inner sleeve and is fixed with one end of the lens, which is far away from the lens.

Furthermore, a first annular flange is arranged on the outer wall of the lens, and a second annular flange which is abutted against the first annular flange is arranged on the inner wall of the inner sleeve.

Further, the lens mount is in threaded connection with the lens, and when the lens mount is screwed in towards the lens direction, the lens mount can be abutted against one side of the first annular flange, which is far away from the second annular flange.

Furthermore, the end part of the inner sleeve is provided with a boss for placing the light absorbing piece.

Further, the endoscope camera assembly still includes the PCB board, the PCB board including arrange in the endotheca and with the first PCB board of lens mount butt, be equipped with photosensitive element on the first PCB board, the lens mount is the hollow circular cylinder structure, photosensitive element arranges in the lens mount.

Furthermore, the PCB board is still including locating the second PCB board of one side that deviates from the lens mount of first PCB board, fill glue in the part of the casing from first PCB board to second PCB board direction.

The utility model also provides an endoscope which comprises the endoscope camera assembly, wherein a shell of the endoscope camera assembly is connected with a sizing tube at the opposite end of a lens.

The lens has the advantages that the whole first channel is sealed through the lens so as to completely seal components in the first channel, the structure can be simplified, the installation difficulty is reduced, the light supplementing element is arranged around the circumference of the lens, the light supplementing can be more uniform, the light absorbing piece is arranged between the light supplementing element and the lens and arranged along the circumference of the lens, the lens and the light supplementing element can be separated into two spaces, the light absorbing piece is further attached to the lens, the two spaces can be separated into the sealed space, meanwhile, the light absorbing piece can absorb light emitted by the light supplementing element towards the direction of the lens, the problem of light channeling is solved, the light absorbing piece is adopted to absorb the light, and the cost can be reduced compared with the structure adopting a sealing structure.

Drawings

FIG. 1 is a schematic structural view of an endoscope provided by the present invention;

FIG. 2 is a partially exploded schematic view of an endoscope provided by the present invention;

FIG. 3 is an enlarged view at B in FIG. 2;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 1;

fig. 5 is an enlarged view at C in fig. 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The whole first channel is sealed through the lens so as to completely seal components in the first channel, the structure can be simplified, the installation difficulty is reduced, the light supplementing element is arranged around the circumference of the lens, the light supplementing can be more uniform, the light absorbing piece is arranged between the light supplementing element and the lens and arranged along the circumference of the lens, the lens and the light supplementing element can be separated into two spaces, the light absorbing piece is further attached to the lens, the two spaces can be separated into a closed space, meanwhile, the light absorbing piece can absorb light emitted by the light supplementing element towards the direction of the lens, the problem of light channeling is solved, the light absorbing piece is adopted to absorb the light, and the cost can be reduced compared with a sealing structure.

Example one

Referring to fig. 1 to 5, an embodiment of the present invention provides an endoscope camera assembly, which includes a housing 1, a lens 2, a lens 3, a light supplement element 4, and a light absorption element 5. Wherein, casing 1 is equipped with the first passageway 11 that is used for leading to light, and lens 2 sets firmly in the tip of first passageway 11, and camera lens 3 locate in first passageway 11 and with lens 2 butt, and light filling component 4 is located in first passageway 11 and around 3 circumference settings of camera lens, and light absorbing member 5 is located between light filling component 4 and the camera lens 3 and sets up along 3 circumference settings of camera lens, and light absorbing member 5 sets up with the laminating of lens 2.

Seal in order to seal the part in first passageway 11 through lens 2, can simplify the structure, reduce the installation degree of difficulty, light filling component 4 sets up around 3 circumference of camera lens, can make the light filling more even, light absorbing part 5 is located between light filling component 4 and the camera lens 3 and sets up along 3 circumference of camera lens, can separate camera lens 3 and light filling component 4 for two spaces, light absorbing part 5 further sets up with 2 laminating of lens, can become the enclosure space with two space divisions, and simultaneously, light absorbing part 5 can absorb the light of light filling component 4 toward 3 direction launches of camera lens, thereby solve the problem of scurrying light, and adopt light absorbing part 5 to absorb light, compare and adopt seal structure ability reduce cost.

The endoscope camera assembly provided by the embodiment of the utility model can simplify the structure, reduce the installation difficulty and reduce the production cost.

Referring to fig. 3, in this embodiment, the light supplement element 4 may adopt but is not limited to a plurality of LED lamp beads, and the plurality of LED lamp beads may be circumferentially spaced or continuously disposed along the lens 3. Further, LED lamp pearl can be fixed in on the lamp plate 9, and lamp plate 9 passes through wire 20 and is connected in order to realize circuit installation with the following PCB board 8 electricity.

Further, the light absorbing member 5 is made of a flexible black material, which can protect the lens 2 from scratches. In this embodiment, the flexible black material may be black foam, which makes the cost low.

Referring to fig. 3 and 5, further, the inner wall of the first channel 11 is provided with a step 111, the lens 2 is clamped on the step 111 and fixed, and the lens 2 is flush with the surface of the housing 1 or lower than the surface of the housing 1, so that the surface structure consistency of the endoscope camera assembly can be maintained, and the lens 2 can be protected from being easily hit by foreign objects, thereby protecting the lens 2. Specifically, the lens 2 can be fixed on the step 111 by glue, so that the lens is fixed stably and has a waterproof effect.

Referring to fig. 1 and 4, in particular, the casing 1 includes an upper casing 1a and a lower casing 1b connected to the upper casing 1a to fix the upper casing 1a, the upper casing 1a and the lower casing 1b may be connected by threads, and after the casing 1 is installed, when glue is filled into the inner tube of the casing 1 in the following embodiments, the glue can seal the joint between the upper casing 1a and the lower casing 1 b. The lens 2, the lens 3, the light compensating element 4, the light absorbing member 5, and the inner sleeve 7 described below are all disposed in the upper case 1a, and the second PCB 82 described below extends into the lower case 1b, so that the components of the camera assembly can be conveniently mounted.

Example two

Referring to fig. 5, on the basis of the first embodiment, further, the endoscope camera head assembly further includes an inner sleeve 7 and a lens mount 6. The inner sleeve 7 is arranged in the first channel 11, the inner sleeve 7 is in clearance fit with the first channel 11, a lead 20 connected with the lamp panel 9 is connected with a PCB (printed circuit board) 8 described below from between the inner sleeve 7 and the first channel 11, the inner sleeve 7 is sleeved outside the lens 3, the light supplementing element 4 and the light absorbing element 5 are both fixed at the end part, facing the lens 2, of the inner sleeve 7, the lens seat 6 is arranged in the inner sleeve 7 and fixed with one end, facing away from the lens 2, of the lens 3, and the lens seat 6 is provided with a second channel 61 which is in the same direction as the first channel 11 and used for light passing of the photosensitive element 10.

In the conventional lens 3 and the lens holder 6, the first PCB 81 described below is used as a reference of a horizontal plane, while the thickness of the first PCB 81 in a normal case is relatively thin, and the inclination of the first PCB 81 in the horizontal plane cannot be easily detected by using the first PCB 81 as the reference, so that the coaxiality of the first PCB 81 and the second PCB cannot be ensured, and the lens 3 is easily inclined, but in the design scheme, the inner sleeve 7 is arranged in the first channel 11, the lens 3 and the lens holder 6 are both arranged in the inner sleeve 7, the inner sleeve 7 is used as an assembly reference of the lens 3 and the lens holder 6, and the coaxiality of the lens 3 and the lens holder 6 can be ensured as much as possible.

Referring to fig. 5, further, the outer wall of the lens 3 is provided with a first annular flange 31, and the inner wall of the inner sleeve 7 is provided with a second annular flange 72 abutting against the first annular flange 31. In this way, the levelness of the first annular flange 31 on the lens 3 can be ensured under the condition that the lens 3 is abutted against the lens 2, at this time, the second annular flange 72 abutted against the first annular flange 31 is arranged on the inner sleeve 7, the coaxiality between the inner sleeve 7 and the lens 3 can be ensured, and when the lens holder 6 and the lens 3 are installed, the coaxiality between the lens holder 6 and the lens 3 can be further corrected by the inner sleeve 7.

Further, in order to fix the inner sleeve 7 and the lens holder 6 after assembly, a glue-filling sealing arrangement may be provided between the inner sleeve 7 and the lens holder 3.

Referring to fig. 5, further, the lens holder 6 is screwed to the lens 3, and when the lens holder 6 is screwed toward the lens 3, the lens holder 6 can abut against a side of the first annular flange 31 facing away from the second annular flange 72. Thus, the lens holder 6 can be axially limited.

Referring to fig. 3, further, the end of the inner sleeve 7 is provided with a boss 71 for placing the light absorbing member 5. Thus, the bosses 71 can improve the close fit between the light absorbing member 5 and the lens 2 to prevent light from entering the lens 3 between the light absorbing member 5 and the lens 2.

EXAMPLE III

Referring to fig. 5, on the basis of the second embodiment, the endoscope camera assembly further includes a PCB board 8, the PCB board 8 includes a first PCB board 81 disposed in the inner sleeve 7 and abutted to the lens holder 6, a photosensitive element 10 is disposed on the first PCB board 81, the lens holder 6 is a hollow cylindrical structure, and the photosensitive element 10 is disposed in the lens holder 6.

The existing photosensitive element 10 is usually a square structure, and in order to make the lens mount 6 can adapt to the photosensitive element 10, the lens mount 6 is adopted to adopt the square structure, but the length and width of the lens mount 6 of the square structure must be greater than the outline of the photosensitive element 10 and just can cover the photosensitive element 10, and the lens mount 6 of the cylindrical structure is adopted in the design scheme, when in use, the hollow cylindrical structure can be reduced to the circumscribed circle of the photosensitive element 10, so, in the limited space, the cylindrical structure is smaller than the square structure, and the occupied space is smaller. On the basis of the design scheme, in order to avoid the corner of the lens mount 6 and the photosensitive element 10 from interfering and damaging the photosensitive element 10, a clearance position can be arranged at the position of the lens mount 6 corresponding to the corner of the photosensitive element 10, and after the installation is finished, black glue can be arranged at the clearance position to prevent light leakage.

Example four

Referring to fig. 5, on the basis of the third embodiment, the PCB 8 further includes a second PCB 82 disposed on a side of the first PCB 81 facing away from the lens holder 6, the second PCB 82 is used for mounting electronic components other than the photosensitive component 10, and a portion of the housing 1 in a direction from the first PCB 81 to the second PCB 82 is filled with glue. So, not only can improve the bulk strength of casing 1, can also make first PCB board 81 and second PCB board 82 have antistatic function to protection PCB board 8.

EXAMPLE five

Referring to fig. 1, 2 and 4, the embodiment of the utility model also provides an endoscope, which comprises the endoscope camera assembly, wherein a shell 1 of the endoscope camera assembly is connected with a sizing tube 30 at the opposite end (namely, a lower shell 1b) of the lens 2. Specifically, be equipped with plastic part 40 on casing 1, set up on the plastic part 40 and communicate with casing 1 in and be used for supplying the first wire hole 401 of crossing that the wire 20 of PCB board 8 passes through, be equipped with on the sizing pipe 30 and cross the corresponding second wire hole 301 of wire hole 401 with first wire hole 401, sizing pipe 30 is fixed in on the first wire hole 401 of crossing.

The endoscope provided by the embodiment of the utility model can simplify the structure, reduce the installation difficulty and reduce the production cost.

It should be noted that, when glue is filled into the housing 1 after installation, the glue also enters the first wire passing hole 401 to seal the first wire passing hole 401.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An endoscopic camera assembly, comprising:

the shell is provided with a first channel for light passing;

the lens is fixedly arranged at the end part of the first channel;

the lens is arranged in the first channel and is abutted against the lens;

2. An endoscopic camera assembly according to claim 1, wherein said light absorbing member is made of a black material.

3. An endoscope camera assembly according to claim 1 and wherein said inner wall of said first channel is provided with a step, said lens is snapped onto said step and secured, said lens is disposed flush with or below the surface of said housing.

4. The endoscopic camera assembly according to claim 1, further comprising:

5. An endoscope camera assembly according to claim 4 and wherein said outer lens wall is provided with a first annular flange and said inner sleeve wall is provided with a second annular flange abutting said first annular flange.

6. An endoscope camera assembly according to claim 5 and wherein said lens mount is threadably connected to said lens, said lens mount being adapted to abut a side of said first annular flange facing away from said second annular flange when said lens mount is rotated in a direction toward said lens.

7. An endoscope camera assembly according to claim 4 and wherein said inner sleeve is provided at an end thereof with a boss for receiving said light absorbing member.

8. An endoscope camera assembly according to any of claims 4-7 and also comprising a PCB board including a first PCB board disposed within said inner sleeve and abutting said lens mount, said first PCB board having a light sensing element disposed thereon, said lens mount being of hollow cylindrical configuration, said light sensing element being disposed within said lens mount.

9. The assembly of claim 8, wherein the PCB further comprises a second PCB disposed on a side of the first PCB facing away from the lens mount, and a portion of the housing extending from the first PCB to the second PCB is filled with glue.

10. An endoscope comprising an endoscope camera assembly according to any of claims 1-9, the housing of which has a sizing tube attached to an opposite end of the lens.