CN206818971U - Eyepiece adjustment structure of endoscope and endoscope - Google Patents

Abstract

The utility model provides an eyepiece adjustment structure of an endoscope and the endoscope, comprising a mounting base, an eyepiece barrel and an eyepiece installed in the eyepiece barrel, the eyepiece barrel is installed in the mounting seat, and the outer wall of the eyepiece barrel is in contact with the eyepiece barrel. The inner wall of the mounting seat is threaded. The utility model connects the eyepiece tube and the mounting seat through threads, adopts the way of rotating feed to reduce the difficulty of assembly, has low requirements on the precision of the tool, and is convenient to operate; on the other hand, it can realize continuous adjustment of the axial position with high adjustment accuracy.

Description

Eyepiece adjustment structure of endoscope and endoscope

technical field

The utility model belongs to the technical field of medical instruments, in particular to an eyepiece adjustment structure of an endoscope and the endoscope.

Background technique

Medical endoscope is a commonly used medical device, which enters the human body through the natural orifice of the human body or through a small incision made by surgery to achieve observation. The assembly and debugging of medical endoscopes are fine work, especially the adjustment of the eyepiece end. At present, the eyepiece tubes of some endoscopes are installed in the way of hole shaft matching and screw locking. The debugging method is to use tools to clamp the eyepiece tubes and move axially in the mounting seat. The adjustment accuracy depends entirely on the tools. The accuracy of the tools and the operation The operator's proficiency is required to be high, and the operation is difficult.

Contents of the invention

In view of the deficiencies of the prior art described above, the purpose of this utility model is to provide an eyepiece adjustment structure of an endoscope, which facilitates the installation and adjustment of the eyepiece barrel.

In order to achieve the above purpose and other related purposes, the technical solution of the utility model is as follows:

An eyepiece adjustment structure of an endoscope, comprising a mounting seat, an eyepiece barrel and an eyepiece installed in the eyepiece barrel, the eyepiece barrel is installed in the mounting seat, and the outer wall of the eyepiece barrel is threadedly matched with the inner wall of the mounting seat.

The upper structure is used, the eyepiece tube is threaded with the mounting seat, and the method of rotating feed reduces the difficulty of assembly, has low requirements on the precision of the tool, and is easy to operate; on the other hand, it can realize continuous adjustment of the axial position with high adjustment accuracy.

Further, it also includes a locking mechanism arranged on the mounting base for locking the mounting base and the eyepiece barrel. After the installation or adjustment is completed, the eyepiece tube and the mounting seat are locked by the locking mechanism to prevent relative axial movement.

Further, the locking mechanism includes a clasp and a fastening screw passing through the clasp, the clasp is covered on the mounting base, and the fastening screw passes through the clasp and is supported on the mounting base.

Further, the mounting base is made of elastic material or a deformation opening is provided on the mounting base, so that the mounting base can be deformed to a certain extent, and the mounting base and the eyepiece barrel are compressed and fixed.

Further, the locking mechanism is a hoop structure.

Further, it also includes an outer pipe seat, the mounting seat is installed in the outer pipe seat, a plurality of adjustment holes are arranged on the outer pipe seat along the circumference, and adjustment screws are installed in the adjustment holes, and the adjustment screws are pushed against the outer wall of the installation seat Fix the mounting bracket.

This structure, on the one hand, supports and fixes the mounting seat through the adjusting screw, and on the other hand realizes the adjustment of the radial position of the mounting seat through the adjusting screw, so as to ensure that the optical axis of the eyepiece coincides with the optical axis of the objective lens.

Further, the outer wall of the mounting seat is provided with a groove corresponding to the adjusting screw, and the adjusting screw is pushed into the groove to limit the axial position of the mounting seat.

Further, the mounting base is provided with a stopper for positioning when being installed with the outer tube base.

Further, it also includes an eyepiece base, the outer tube base is installed in the eyepiece base and fixed by fixing screws provided on the eyepiece base.

The utility model also provides an endoscope, including the eyepiece adjustment structure of the endoscope according to any one of the above technical solutions.

As mentioned above, the beneficial effects of the utility model are: the eyepiece tube and the mounting seat are connected by threads, and the difficulty of assembly is reduced by adopting the way of rotating feed, the precision requirement of the tool is low, and the operation is convenient; on the other hand, the axial position can be realized Continuous adjustment, high adjustment accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model eyepiece adjustment structure;

Fig. 2 is a schematic structural view of the endoscope of the present invention.

Part number description

1 eyepiece tube

2 eyepieces

3 mounts

31 grooves

32 Boss

41 snap ring

42 fastening screw

5 eyepiece mount

6 outer socket

7 Adjusting screw

8 set screws

9 Eyepiece Outer Mount

10 housing

11 Objective Lens Structure

detailed description

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

Example

As shown in Figure 1, an eyepiece adjustment structure of an endoscope includes an outer tube base 6, a mounting base 3 and an eyepiece tube 1, the eyepiece tube 1 is equipped with an eyepiece 2, and the mounting base 3 is installed in the outer tube base 6 , The eyepiece tube 1 is installed in the mounting seat 3, and the outer wall of the eyepiece tube 1 is threadedly matched with the inner wall of the mounting seat 3 to realize axial movement adjustment. The method of rotary feed is convenient for assembly and debugging, has low requirements on tool precision, and is easy to operate; on the other hand, it can also realize continuous adjustment of axial position with high adjustment accuracy.

In order to facilitate the locking of the eyepiece tube 1 after being adjusted in place in the mounting seat 3 and limit the axial movement of the eyepiece tube 1 , a locking mechanism for locking the mounting seat 3 and the eyepiece tube 1 is also provided on the mounting seat 3 . In this example, the locking mechanism is preferably a snap ring 41 and a fastening screw 42. The snap ring 41 is sheathed on the mounting base 3, the fastening screw 42 is set on the snap ring 41, and the fastening screw 42 passes through the snap ring 41 and pushes against it. On the outer wall of the mounting base 3, there can be one or more fastening screws 42 . After the adjustment is in place, the mounting seat 3 is pressed against the fastening screw 42 so that it tightly hugs the eyepiece tube 1 to prevent axial movement. In another embodiment, the locking mechanism may also be a hoop structure.

In one embodiment, the mounting base 3 is made of elastic material, so that the mounting base 3 can be deformed to a certain extent, and the eyepiece barrel 1 can be tightly hugged by the action of the fastening screw 42 . In another embodiment, the mounting seat 3 is provided with a deformation opening so that the mounting seat 3 can produce small deformation. The deformation opening can be a local opening or a slit opened along the axial direction. After the installation is in place, the installation The seat 3 deforms and restores the eyepiece tube 1 tightly. Designing the deformation opening enables the mounting seat 3 to produce elastic deformation within a certain range, thereby facilitating the release and locking of the eyepiece tube 1 .

In order to facilitate the support and adjustment of the mounting base 3, a plurality of adjustment holes are arranged on the outer tube base 6 along the circumference, and adjustment screws 7 are installed in the adjustment holes. On the outer wall, on the one hand, the mounting seat 3 is supported and fixed by the adjusting screw 7, and on the other hand, the radial position of the mounting seat 3 is adjusted by the adjusting screw 7 to ensure that the optical axis of the eyepiece coincides with the optical axis of the objective lens. Adjusting screw 7 can adopt 3 and above.

In order to facilitate the installation of the mounting base 3, a groove 31 corresponding to the adjusting screw 7 is provided on the outer wall of the front part of the mounting base 3. The adjusting screw 7 extends into the groove 31 to press the mounting base 3 tightly and restrict the installation. The axial position of seat 3. The outer wall of the mounting base 3 is provided with a stop portion for positioning when installing with the outer tube base 6. In this example, the stop portion is a circle of bosses 32, and the bosses 32 are against the rear end surface of the outer tube base 6 to limit the extension of the mounting base 3. Enter the length of the outer socket 6.

Further, the eyepiece seat 5 is also included, the eyepiece seat 5 is used to connect with the objective part and support the eyepiece part, the outer tube seat 6 is installed in the eyepiece seat 5 and fixed by the fixing screw 8 provided on the eyepiece seat 5 .

As shown in FIG. 2 , the present invention also provides an endoscope, which includes the above-mentioned eyepiece adjustment structure of the endoscope. It also includes an eyepiece outer seat 9, an optical transfer structure, an objective lens structure 11, a casing 10, and the like.

As mentioned above, the beneficial effects of the utility model are: the eyepiece tube and the mounting seat are connected by threads, and the difficulty of assembly is reduced by adopting the way of rotating feed, the precision requirement of the tool is low, and the operation is convenient; on the other hand, the axial position can be realized Continuous adjustment, high adjustment accuracy.

Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (10)

1. a kind of eyepiece adjustment structure of endoscope, including mounting seat, eyepiece stalk and the eyepiece in eyepiece stalk, its feature It is：The eyepiece stalk is arranged in mounting seat, and the outer wall of the eyepiece stalk and the inner thread of mounting seat coordinate.

2. the eyepiece adjustment structure of endoscope according to claim 1, it is characterised in that：Also include being arranged in mounting seat For locking the retaining mechanism of mounting seat and eyepiece stalk.

3. the eyepiece adjustment structure of endoscope according to claim 2, it is characterised in that：The retaining mechanism includes snap ring With the trip bolt being located on snap ring, the snap ring is enclosed in mounting seat outside, and the trip bolt is through snap ring and withstands on peace Fill on seat.

4. the eyepiece adjustment structure of endoscope according to claim 3, it is characterised in that：The mounting seat is by elastomeric material It is made or mounting seat is provided with deformation opening.

5. the eyepiece adjustment structure of endoscope according to claim 2, it is characterised in that：The retaining mechanism is anchor ear knot Structure.

6. the eyepiece adjustment structure of the endoscope according to claim 1-5 any one, it is characterised in that：Also include outer tube Seat, the mounting seat are arranged in outer pipe seat, and circumferentially arranged with multiple adjustment holes in the outer pipe seat, the adjustment hole is interior to be installed There is adjusting screw, the adjusting screw withstands on mounting seat outer wall and fixes mounting seat.

7. the eyepiece adjustment structure of endoscope according to claim 6, it is characterised in that：Opened up on the mounting seat outer wall There is groove corresponding with adjusting screw, the adjusting screw is withstood in groove.

8. the eyepiece adjustment structure of endoscope according to claim 6, it is characterised in that：Use is provided with the mounting seat The stopper section positioned when being installed with outer pipe seat.

9. the eyepiece adjustment structure of endoscope according to claim 6, it is characterised in that：Also include eyepiece mount, it is described outer Base is arranged in eyepiece mount, and the fixing screws by being set on eyepiece mount are fixed.

A kind of 10. endoscope, it is characterised in that：Eyepiece regulation knot including the endoscope described in claim 1-9 any one Structure.