CN212160223U

CN212160223U - Replaceable lens device of endoscope

Info

Publication number: CN212160223U
Application number: CN202021289026.XU
Authority: CN
Inventors: 谢民政; 谢梦蕾; 张进
Original assignee: Changzhou Yanshun Optoelectronics Technology Co ltd
Current assignee: Changzhou Yanshun Optoelectronics Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-12-15
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a removable camera lens device of endoscope, including endoscope head end subassembly, endoscope head end subassembly includes head end seat and snake bone connecting seat, head end seat and snake bone connecting seat fixed connection, its innovation point lies in: the replaceable objective lens assembly comprises a replaceable objective lens base and a nut sleeve, the replaceable objective lens base is fixedly connected with the nut sleeve, the nut sleeve is matched with the head end base through a limiting rotation stopping mechanism, and the nut sleeve is detachably connected with the head end base. The utility model discloses the camera lens that not only can satisfy multiple angle of vision, multiple visual angle direction camera lens pass through the interchange device of camera lens and use on same platform endoscope, have effectively enlarged the application range and the function of endoscope, the follow-up maintenance of being convenient for moreover.

Description

Replaceable lens device of endoscope

Technical Field

The utility model relates to a lens device, concretely relates to interchangeable lens device of endoscope.

Background

At present, if a pipeline endoscope is used for inserting a pipeline to detect whether the pipeline is damaged or has bad hidden trouble, the front part of the endoscope inserting part is a bendable part, so that the lens can change the direction in the pipeline or equipment, and the inside of the equipment can be better detected. Since the invention of the endoscope, the lens of the endoscope and the snake bone at the front part of the insertion part are connected into a whole. At present, the endoscope probe technology is developed with a plurality of probes, and from the view direction of an endoscope, the probes are divided into a direct-view probe (0 degree view direction), a 45 degree probe, a 75 degree probe and a 90 degree probe (also called side-view probe); the field angles of the objective lens are 130 degrees, 120 degrees, 110 degrees, 105 degrees, 100 degrees, 95 degrees, 90 degrees, 75 degrees, 50 degrees, 45 degrees and other different field angles. So as to detect the human body cavity or the inside of mechanical equipment in an all-round way.

If the lens of each field angle and the lens with different viewing directions are all produced into one endoscope, the production cost is high, the resource is greatly wasted, if the lens is damaged, the subsequent maintenance is not facilitated, and even the whole endoscope is scrapped. Therefore, there is a need to design a lens-replaceable device for an endoscope, which can meet the requirements of different angles of view and different directions of view through the replacement of different lenses, and is convenient for subsequent maintenance.

Disclosure of Invention

The utility model aims at: provided is an interchangeable lens device for an endoscope, which can be used in the same endoscope through an interchangeable device for lenses satisfying various angles of view and various directions of view, and which is convenient for subsequent maintenance.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a removable lens device of endoscope, includes endoscope head end subassembly, endoscope head end subassembly includes head end seat and snake bone connecting seat, head end seat and snake bone connecting seat fixed connection, its innovation point lies in: also comprises a replaceable object lens component which is provided with a lens holder,

the replaceable objective lens assembly comprises a replaceable lens base and a nut sleeve, the replaceable lens base is fixedly connected with the nut sleeve, the nut sleeve is matched with the head end base through a limiting rotation stopping mechanism, and the nut sleeve is detachably connected with the head end base.

In the above technical scheme, the limiting rotation stopping mechanism comprises a limiting boss arranged in the inner cavity of the replacement lens mount and a rotation stopping bayonet arranged on the head end mount, and the limiting boss on the replacement lens mount is clamped in the rotation stopping bayonet on the head end mount.

In the above technical scheme, the limiting rotation stopping mechanism comprises a positioning pin arranged in the inner cavity of the replaceable lens mount and a positioning pin hole arranged on the head end mount, and the positioning pin is inserted in the positioning pin hole.

In the technical scheme, the inner wall of the nut sleeve is provided with two sections of connecting internal threads which are separately arranged, and the threads of the outer wall of the head end seat are in threaded connection with the connecting internal threads on the inner side of the nut sleeve.

In the technical scheme, a sensor is arranged in the snake bone connecting seat and is a CCD sensor or a CMOS sensor.

In the above technical solution, an object lens is arranged in the head end base, an object lens replacement is arranged in the object lens replacement base, and the object lens of the head end base is optically coaxial with the object lens replacement in the object lens replacement base.

In the above technical scheme, a light guide bundle is arranged in the head end base, light guide glass is arranged in the replacement lens base, and the end part of the light guide bundle is attached to the light guide glass.

In the above technical scheme, a rubber sealing ring is further arranged in the replacement lens mount, and the rubber sealing ring is located on the outer side of the replacement objective lens.

In the above technical solution, the outer wall of the nut sleeve is provided with a plurality of axially arranged anti-slip grooves along the circumferential direction thereof.

The utility model discloses the positive effect who has is: adopt the utility model discloses an after the interchangeable lens device of endoscope, because the utility model discloses still include interchangeable object lens subassembly, interchangeable object lens subassembly is including changing lens mount and nut cover, change lens mount and nut cover fixed connection, the nut cover cooperates with the head end seat through spacing mechanism of stopping rotating to the nut cover can be dismantled with the head end seat and be connected, during the use, can according to actual technical requirement, in advance separate nut cover and head end seat to the change lens mount that will accord with angle of field lens and visual angle direction camera lens of requirement uses with the head end seat is supporting, like this the utility model discloses can realize using the camera lens of multiple angle of field, multiple visual angle direction camera lens to pass through the interchange device of camera lens on same endoscope, produce an endoscope promptly and can replace many endoscopes to use, not only satisfy the inside detection of various equipment, and various complex structure, The use cost of a plurality of endoscopes required to be purchased by a user is greatly reduced, and 1 endoscope is used instead of a plurality of endoscopes, so that a lot of raw materials are saved. If the lens is damaged in the inner cavity of the equipment, the operator can immediately continue the examination work of the endoscope only by replacing one lens, thereby not only improving the working efficiency, but also replacing a plurality of endoscopes with one endoscope; and unnecessary giving fee is reduced, and the production and use cost is saved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention;

fig. 2 is a schematic structural view of the endoscopic end assembly of fig. 1;

FIG. 3 is a schematic diagram of the interchangeable object lens assembly of FIG. 1;

fig. 4 is a schematic perspective view of the present invention;

FIG. 5 is a perspective view of the head mount of FIG. 2;

FIG. 6 is a perspective view of the snake bone connecting seat in FIG. 2;

FIG. 7 is a perspective view of the interchangeable lens mount of FIG. 2;

FIG. 8 is a perspective view of the nut shell of FIG. 2;

FIG. 9 is a schematic perspective view of an alternative head end mount of FIG. 2;

fig. 10 is another perspective view of the replaceable lens holder of fig. 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but is not limited thereto.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, an interchangeable lens device of an endoscope comprises an endoscope head end assembly 1, the endoscope head end assembly 1 comprises a head end seat 11 and a snake bone connecting seat 12, the head end seat 11 is fixedly connected with the snake bone connecting seat 12, and an interchangeable object lens assembly 2,

the replaceable objective lens assembly 2 comprises a replaceable lens seat 21 and a nut sleeve 22, the replaceable lens seat 21 is fixedly connected with the nut sleeve 22, the nut sleeve 22 is matched with the head end seat 11 through a limiting rotation stopping mechanism 3, and the nut sleeve 22 is detachably connected with the head end seat 11.

As shown in fig. 1, a stepped inner hole is formed at the rear hole of the nut sleeve 22, an annular groove is formed on the outer wall of the replacement lens holder 21, and the annular groove of the replacement lens holder 21 is clamped in the stepped inner hole of the nut sleeve 22, so that the replacement lens holder 21 is prevented from falling off, and the nut sleeve 22 can be screwed with respect to the head end holder 11.

As shown in fig. 1, 5 and 7, in order to achieve the quick positioning and assembling of the head mount and the replacement lens mount and to prevent the rotation of the replacement lens mount, the limiting and rotation stopping mechanism 3 includes a limiting boss 31 disposed in the inner cavity of the replacement lens mount 21 and a rotation stopping bayonet 32 disposed on the head mount 11, and the limiting boss 31 on the replacement lens mount 21 is clamped in the rotation stopping bayonet 111 on the head mount 11.

Of course, the rotation limiting and stopping mechanism 3 of the nut sleeve 22 and the head end seat 11 are not limited to this, and as shown in fig. 1, 9 and 10, the rotation limiting and stopping mechanism 3 may include a positioning pin 33 disposed in the inner cavity of the replacement lens seat 21, and a positioning pin hole 34 disposed on the head end seat 11, and the positioning pin 33 is inserted into the positioning pin hole 34.

As shown in fig. 1, 3 and 8, in order to prevent the nut sleeve from falling off from the head seat and play a double protection role for the nut sleeve, the inner wall of the nut sleeve 22 has two sections of separately arranged connecting internal threads 221, and the threads of the outer wall of the head seat 11 are in threaded connection with the connecting internal threads 221 inside the nut sleeve 22.

As shown in fig. 1 and 2, in order to ensure the accuracy of image transmission, a sensor 13 is arranged in the snake bone connecting seat 12, and the sensor 13 is a CCD sensor or a CMOS sensor.

As shown in fig. 1, in order to ensure stability of image transmission, the objective lens 14 is disposed in the head end mount 11, the interchangeable objective lens 23 is disposed in the interchangeable lens mount 21, and the objective lens 14 of the head end mount 11 is optically coaxial with the interchangeable objective lens 23 in the interchangeable lens mount 21.

As shown in fig. 2 and 4, in order to ensure the light guiding requirement, the light guiding bundle 15 is arranged in the head mount 11, the light guiding glass 24 is arranged in the replacement lens mount 21, and the end of the light guiding bundle 15 is attached to the light guiding glass 24.

As shown in fig. 1 and 3, in order to achieve the sealing effect, a rubber seal 25 is further disposed in the interchangeable lens mount 21, and the rubber seal 25 is located outside the interchangeable objective lens 23.

As shown in fig. 4 and 8, in order to facilitate the screwing of the nut sleeve on the head end seat, the nut sleeve 22 is provided with a plurality of anti-slip grooves 223 axially arranged along the circumferential direction on the outer wall thereof.

The utility model discloses during the use, can be according to actual technical requirement, separation nut cover 22 and head end seat 11 in advance to the change lens mount 21 and the head end seat 11 of the angle of vision camera lens that will accord with the requirement are supporting to be used, nut cover 22 cooperatees with head end seat 11 through spacing rotation stopping mechanism 3 to nut cover 22 and the 11 threaded connection of head end seat, like this the utility model discloses can realize using the camera lens of multiple angle of vision, the interchange device that multiple angle of vision direction camera lens passed through the camera lens on same endoscope, produce an endoscope promptly and can replace many endoscopes to use, not only satisfy various equipment, and the inside detection of various complex structures, use, reduced the use cost that the user needs purchase many endoscopes moreover widely, 1 replaces many endoscopes to use, has practiced thrift a lot of raw and other materials. If the lens is damaged in the inner cavity of the equipment, the operator can immediately continue the examination work of the endoscope only by replacing one lens, thereby not only improving the working efficiency, but also replacing a plurality of endoscopes with one endoscope; and unnecessary giving fee is reduced, and the production and use cost is saved.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An interchangeable lens device for an endoscope, comprising an endoscopic lens end assembly (1), said endoscopic lens end assembly (1) comprising a head end mount (11) and a snake bone connecting mount (12), said head end mount (11) being fixedly connected to said snake bone connecting mount (12), characterized in that: also comprises an interchangeable object lens component (2),

the replaceable objective lens assembly (2) comprises a replaceable lens seat (21) and a nut sleeve (22), the replaceable lens seat (21) is fixedly connected with the nut sleeve (22), the nut sleeve (22) is matched with the head end seat (11) through a limiting rotation stopping mechanism (3), and the nut sleeve (22) is detachably connected with the head end seat (11).

2. The interchangeable lens device for an endoscope according to claim 1, characterized in that: the limiting rotation stopping mechanism (3) comprises a limiting boss (31) arranged in an inner cavity of the replaceable lens seat (21) and a rotation stopping bayonet (32) arranged on the head end seat (11), and the limiting boss (31) on the replaceable lens seat (21) is clamped in the rotation stopping bayonet (32) on the head end seat (11).

3. The interchangeable lens device for an endoscope according to claim 1, characterized in that: the limiting rotation stopping mechanism (3) comprises a positioning pin (33) arranged in an inner cavity of the replaceable lens seat (21) and a positioning pin hole (34) arranged on the head end seat (11), and the positioning pin (33) is inserted in the positioning pin hole (34).

4. The interchangeable lens device for an endoscope according to claim 1, characterized in that: the inner wall of the nut sleeve (22) is provided with two sections of separately arranged connecting internal threads (221), and the threads of the outer wall of the head end seat (11) are in threaded connection with the connecting internal threads (221) on the inner side of the nut sleeve (22).

5. The interchangeable lens device for an endoscope according to claim 1, characterized in that: a sensor (13) is arranged in the snake bone connecting seat (12), and the sensor (13) is a CCD sensor or a CMOS sensor.

6. The interchangeable lens device for an endoscope according to claim 1, characterized in that: the novel lens holder is characterized in that an object lens (14) is arranged in the head end seat (11), an object lens replacing (23) is arranged in the object lens replacing seat (21), and the object lens (14) of the head end seat (11) is coaxial with the object lens replacing (23) in the object lens replacing seat (21).

7. The interchangeable lens device for an endoscope according to claim 1, characterized in that: be equipped with leaded light bundle (15) in head end seat (11), be equipped with leaded light glass (24) in changing lens seat (21), the tip and the laminating of leaded light glass (24) of leaded light bundle (15) mutually.

8. The interchangeable lens device for an endoscope according to claim 4, wherein: a rubber sealing ring (25) is further arranged in the replacement lens seat (21), and the rubber sealing ring (25) is located on the outer side of the replacement object lens (23).

9. The interchangeable lens device for an endoscope according to claim 1, characterized in that: the outer wall of the nut sleeve (22) is provided with a plurality of axially arranged anti-slip grooves (223) along the circumferential direction.