CN218974682U

CN218974682U - Replaceable endoscope lens

Info

Publication number: CN218974682U
Application number: CN202320085769.2U
Authority: CN
Inventors: 曾志刚; 张刚文
Original assignee: Avanline Digital Tech Co ltd
Current assignee: Avanline Digital Tech Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-05-05
Anticipated expiration: 2033-01-30

Abstract

The utility model provides an interchangeable endoscope lens, which comprises a mounting base, an image sensor, a shell, a first combining seat, an optical lens, two light guide columns arranged on two sides of the upper end of the first combining seat, and a second combining seat arranged on the two sides of the upper end of the first combining seat, wherein a positioning boss is arranged at the position of the first combining seat corresponding to the mounting base, a positioning groove is arranged at the position of the mounting base corresponding to the positioning boss, a light guide optical fiber is arranged at the position of the mounting base corresponding to the light guide column, a light guide hole is arranged at the position of the second combining seat corresponding to the light guide column, the upper end of the second combining seat is propped against the shell, a threaded hole is arranged at the position of the first combining seat corresponding to the optical lens, and a avoidance through hole is arranged at the position of the second combining seat corresponding to the optical lens. The replaceable endoscope lens can be taken down, and can be independently replaced or maintained, so that the replaceable endoscope lens is convenient to assemble and disassemble and low in maintenance cost.

Description

Replaceable endoscope lens

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an interchangeable endoscope lens.

Background

The electronic endoscope is used for acquiring image signals, transmitting the image signals to a rear-end image processing system and then outputting the image signals to a terminal display device for display. The lens end is provided with a light guide device, and light generated by the rear-end light source is guided out from the lens end and projected to a target object for light supplementing. The image acquisition is at the front end of the endoscope insertion tube, and the optical lens focuses light to the image sensor, which converts the optical signal into an electrical signal for transmission to the rear end. The lens component is exposed in the working environment and is easy to be worn or disabled by external force. The image sensor is positioned in the base of the end of the insertion tube and is generally not easily damaged.

Above-mentioned endoscope, when the lens takes place wearing and tearing or inefficacy, need demolish image sensor or whole inserted tube, maintenance efficiency is low, and the material cost is big.

Disclosure of Invention

The utility model aims to provide an interchangeable endoscope lens so as to solve the problems of low maintenance efficiency and high material cost of the existing endoscope lens.

The utility model provides an interchangeable endoscope lens, which comprises a mounting base, an image sensor arranged in the middle of the mounting base, a shell detachably connected with a side wall of the mounting base, a first combination seat arranged in the shell and connected with the mounting base, an optical lens arranged in the middle of the upper end of the first combination seat, two light guide columns arranged on two sides of the upper end of the first combination seat, and a second combination seat connected with the light guide columns, wherein a positioning boss is arranged at the position of the first combination seat corresponding to the mounting base, a positioning groove is arranged at the position of the mounting base corresponding to the positioning boss, a light guide fiber is arranged at the position of the mounting base corresponding to the light guide column, a light guide hole is arranged at the position of the second combination seat corresponding to the light guide column, the upper end of the second combination seat is propped against the shell, a threaded hole is arranged at the position of the first combination seat corresponding to the optical lens, and a through hole is arranged at the position of the second combination seat corresponding to the optical lens.

Above-mentioned removable endoscope camera lens, first combination seat is through the positioning boss with install the positioning groove butt joint of base, the second combination seat is through the leaded light hole with first combination seat on leaded light post butt joint to make the optical lens be located image sensor's middle part, rethread shell is with first combination seat and second combination seat detachable fix on the installation base, when maintenance or change optical lens need, only need open the shell, take off first combination seat and second combination seat and change or maintain alone, easy dismounting, cost of maintenance is low.

Further, an external thread is arranged on the side wall of the mounting base, and an internal thread is arranged at the position of the outer shell corresponding to the external thread.

Further, a positioning pin is arranged on one side of the first combining seat, which is positioned on the optical lens, and a positioning hole is arranged at a position of the second combining seat, which corresponds to the positioning pin.

Drawings

FIG. 1 is an application scenario diagram of an interchangeable endoscope lens in a first embodiment of the present utility model;

FIG. 2 is a perspective view of the interchangeable endoscope lens of FIG. 1 in a first disassembled state;

FIG. 3 is a perspective view of the interchangeable endoscope lens of FIG. 2 in a first disassembled state;

FIG. 4 is a perspective view of a mounting base in the interchangeable endoscope lens of FIG. 2;

fig. 5 is a schematic cross-sectional view of the interchangeable endoscope lens of fig. 2.

Description of main reference numerals:

mounting base	10	First combining seat	40	Light guide hole	71
						Positioning groove	11	Positioning boss	41	Avoidance through hole	72
External screw thread	12	Threaded hole	42	Positioning hole	73
						Image sensor	20	Optical lens	50	Light-guiding optical fiber	80
Outer casing	30	Light guide column	60	Positioning pin	90
						Internal thread	31	Second combined seat	70

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an interchangeable endoscope lens provided by the embodiment of the utility model includes a mounting base 10, an image sensor 20 disposed in the middle of the mounting base 10, a housing 30 detachably connected to a side wall of the mounting base 10, a first combining seat 40 disposed in the housing 30 and connected to the mounting base 10, an optical lens 50 disposed in the middle of the upper end of the first combining seat 40, two light guide columns 60 disposed on two sides of the upper end of the first combining seat 40, and a second combining seat 70 disposed on the light guide columns 60, wherein a positioning boss 41 is disposed at a position of the first combining seat 40 corresponding to the mounting base 10, a positioning groove 11 is disposed at a position of the mounting base 10 corresponding to the positioning boss 41, a light guide fiber 80 is disposed at a position of the mounting base 10 corresponding to the light guide columns 60, a light guide hole 71 is disposed at a position of the second combining seat 70 corresponding to the light guide columns, an upper end of the second combining seat 70 abuts against the housing 30, and a through hole 72 is disposed at a position of the second combining seat 50 corresponding to the first combining seat 40.

The above-mentioned removable endoscope lens, first combination seat 40 is through the butt joint of location boss 41 with the positioning groove 11 of installation base 10, play the effect of circumference location to first combination seat 40, second combination seat 70 is through the light guide hole 71 with the last leaded light post 60 butt joint of first combination seat 40, and make optical lens 50 be located the middle part of image sensor 20, rethread shell 30 is with first combination seat 40 and second combination seat 70 detachable fixed on installation base 10, when needing maintenance or change optical lens 50, only need open shell 30, again take off the change or maintenance with first combination seat 40 and second combination seat 70, easy dismounting, cost of maintenance is low.

Specifically, in the embodiment of the present utility model, the upper portion of the optical lens 50 and the second coupling seat 70 are in clearance fit. The light guide column 60 passes through the first combining seat 40 and the second combining seat 70, the lower end face is tightly attached to and aligned with the optical fiber outlet of the mounting base 10, the upper end face is exposed from the upper end face of the second combining seat 70, so that the light emitted by the rear end light source is emitted from the side of the lens through the light guide optical fiber 80 and the light guide column 60 to supplement the light for the lens.

Specifically, in the embodiment of the present utility model, the side wall of the mounting base 10 is provided with an external thread 12, and the position of the housing 30 corresponding to the external thread 12 is provided with an internal thread 31, so as to realize detachable connection of the mounting base 10 and the housing 30. Specifically, the distance between the lens and the image sensor can be calibrated by screwing in or screwing out the screw thread, and in other embodiments of the present utility model, the mounting base 10 and the housing 30 can be connected in other ways to change the distance between the optical lens 50 and the image sensor 20.

Specifically, in the embodiment of the present utility model, the positioning pin 90 is disposed on the side of the first coupling seat 40 located on the optical lens 50, the positioning hole 73 is disposed at the position of the second coupling seat 70 corresponding to the positioning pin 90, so as to perform a circumferential positioning function on the first coupling seat 40 and the second coupling seat 70, in other embodiments of the present utility model, the number of positioning pairs formed by the positioning pin 90 and the positioning hole 73 is 0 or several, if the number of positioning pairs is 0, the rough circumferential positioning function can also be performed by the light guiding column 60 and the light guiding hole 71 without disposing the positioning pairs.

It should be noted that, in one embodiment of the present utility model, when the first coupling seat 40 and the second coupling seat 70 are engaged together, the light guiding post 60 passes through the through hole of the second coupling seat 70, and the upper portion of the optical lens 50 enters the avoiding through hole 72 in the middle of the second coupling seat 70. At this time, the first coupling seat 40 and the second coupling seat 70 are permanently fastened together by glue or welding. The first and

second coupling holders

40 and 70 fastened together and the inner optical lens 50, the light guide post 60 and the housing 30 constitute an exchangeable portion. Since the optical lens 50 in the first combining seat 40 is calibrated with respect to the image sensor 20 before the first combining seat 40 and the second combining seat 70 are combined together, the housing 30 is rotated to be pressed on the mounting base 10 under the guidance of the positioning boss 41 of the first combining seat 40 and the positioning groove 11 of the mounting base 10, so that the correct image quality can be obtained.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides an interchangeable endoscope camera lens, its characterized in that, include the installation base, locate the image sensor at installation base middle part, with the shell that installation base side wall can be dismantled and be connected, locate in the shell and with the first combination seat that the installation base is connected, locate the optical lens at first combination seat upper end middle part, locate two leaded light posts of first combination seat upper end both sides, and locate the second combination seat that the leaded light post is connected, first combination seat with the position that the installation base corresponds is equipped with the location boss, the installation base with the position that the location boss corresponds is equipped with the positioning groove, the installation base with the position that the leaded light post corresponds is equipped with light optic fibre, the second combination seat with the position that the leaded light post corresponds is equipped with the leaded light hole, the upper end of second combination seat support in the shell, the first combination seat with the position that the optical lens corresponds is equipped with the screw hole, the second combination seat with the position that the optical lens corresponds is equipped with the through-hole dodges.

2. The interchangeable endoscope lens of claim 1 wherein the side wall of the mounting base is provided with external threads and the housing is provided with internal threads at a location corresponding to the external threads.

3. The interchangeable endoscope lens according to claim 1, wherein the first coupling seat is provided with a positioning pin on one side of the optical lens, and the second coupling seat is provided with a positioning hole at a position corresponding to the positioning pin.