CN203204237U - Steering structure of endoscope - Google Patents

Abstract

A turning structure of an endoscope, comprising: the flexible sleeve comprises a photographic lens group, a front pivot piece, a traction steel wire, a front joint ring, a plurality of middle joint rings, an elastic element, a flexible sleeve, a rear joint ring, a rear pivot piece and a flexible coil pipe element; wherein: when any drawing steel wire is tensioned, the opposite drawing steel wire is simultaneously loosened, so that the elastic element and the flexible sleeve can bend towards the tensioning direction, the maximum bending angle can enable the image taking direction of the photographic lens group to be parallel to the signal transmission line, and the angle of the viewing angle of the photographic lens group is determined according to the tensioning amplitude of the drawing steel wire, thereby being capable of thoroughly and reliably carrying out internal vision inspection. The utility model discloses but photographic lens group's rotation quadriversal is turned to the structure wantonly, borrows several middle part joint ring and elastic element constitution by simple structure, can provide the steering structure of low in cost's endoscope, effective reduce cost improves economic benefits.

Description

Steering structure of endoscope

technical field

The utility model relates to a steering structure of an endoscope. Specifically, it refers to an improved flexible structure in which a photographic lens group can rotate in four directions, thereby achieving a low-cost design.

Background technique

Due to the rapid development of optical imaging and electronic related technologies, the structure of the current endoscope device is mostly composed of a camera module, a light-emitting element and a hollow tube connected, and then connected to a display screen to display the image inside the target object , can be widely used in various fields, such as national defense, medicine, industry and commerce, fish and animal husbandry, agriculture, education, etc., and the application in medical treatment is also quite common, such as the use of endoscopic devices for medical purposes to observe living bodies The internal organization, or use the endoscope device for industrial purposes to observe the internal structure of machinery and automobile engines, so that the operator can detect whether there is any abnormality in the target object.

But, the endoscope of prior art turns to bending structure a lot, such as: Chinese Taiwan No. M384635, M414932 and M417129 patent etc. disclose three kinds of different bending pipe steering structures, but these patents need to be just by turning the holding part. The endoscope can be controlled to make a 360-degree turn, so an experienced operator is required to operate the endoscope flexibly.

Another example is Taiwan's new patent No. M400299, which discloses the structure of controlling the endoscope to move 360 degrees by pulling the control line, so as to improve the above-mentioned shortcomings of needing to rotate the grip part, and can provide the operator with intuition based on the bending angle to adjust the angle.

However, the above-mentioned endoscope steering mechanisms in the prior art all have many complex precision structures and components. In order to maintain the metal structure to be able to steer, it must have a very high precision, which will inevitably lead to a substantial increase in production costs and a more complex processing procedure. Hemp complicated, trivial.

In view of the various problems of the above-mentioned prior art, in order to be able to solve both problems, the inventor, based on many years of research and development and practical experience, and after many repeated tests and researches on ways to improve, has confirmed that he has developed a steering structure for endoscopes , can fully meet the expected purpose and efficacy, as the basis for the realization of the improvement of the above problems.

Utility model content

The main technical problem to be solved by the utility model is to overcome the existing problems of the prior art

In view of the aforementioned defects, a steering structure of an endoscope is provided, which can rotate the photographic lens group by pulling a certain traction wire, and the photographic lens group can be rotated to a specific direction arbitrarily, so that the photographic lens group can be rotated in the Unrestricted turning in the pipeline can obtain more detailed and accurate internal inspection; the four-way steering structure of the camera lens group of the utility model is composed of several middle joint rings and elastic elements with simple structure. A low-cost endoscope steering structure can be provided to effectively reduce costs and improve economic benefits.

The technical scheme that the utility model solves its technical problem adopts is:

A steering structure of an endoscope, which consists of a photographic lens group, a front pivot joint, a traction wire, a front joint ring, several middle joint rings, an elastic element, a flexible sleeve, a rear joint ring, a rear pivot joint and The composition of the flexible snake tube is characterized in that:

The center of the front pivot member is provided with a first joint hole and a second joint hole connected to pass through the signal transmission line of the camera lens group. ring tight combination;

The center of the anterior joint ring has a through hole, and a number of control wire holes are distributed equidistantly on the ring edge, and several side holes are arranged in the radial direction. line, and inserted into the second joint hole of the front pivot joint for tight connection, and the through hole is passed through by the elastic element;

Each of the several middle joint rings has the same shape, and a through hole is provided in the center, and a number of control line holes are equally distributed on the ring edge, and several side holes are arranged in the radial direction. The component is positioned, and the control line hole shuttles and pulls the steel wire, and is positioned at the periphery of the elastic component at equal intervals through the through hole;

The elastic element is set in the state of a coil spring, and its rear end is inserted into the first hole section of the rear joint ring, and is resisted by the shoulder ring surface of the rear joint ring. is the through hole passing through the anterior articular ring;

The flexible sleeve is inserted between the front joint ring and the rear joint ring, and simultaneously wraps several middle joint rings and elastic elements;

The center of the rear joint ring is provided with a first hole segment with a larger diameter and a second hole segment with a smaller diameter, and the first hole segment is bounded by the second hole segment to form a drop shoulder ring surface, and the first hole segment is for insertion The elastic element is stopped by the shoulder ring surface at the same time, and a number of control wire holes are distributed equidistantly on the ring edge, and the control wire holes are used for shuttle pulling steel wires, and several side holes are arranged in the radial direction. The side holes are Used for positioning with the elastic element, which is inserted into the first engaging hole of the rear pivot member and resisted by the shoulder ring surface of the rear pivot member;

The center of the rear pivot member is provided with a first joint hole with a larger diameter, a second hole section with a middle diameter, and a third hole section with a small diameter, and the first joint hole is bounded by the second hole section to form a drop shoulder ring. On the surface, the first joint hole is used for inserting the rear joint ring, and then the rear joint ring is stopped by the shoulder ring surface, and the corner of the second hole section and the third hole section is set as an arc edge, which is conducive to pulling the steel wire Sliding smoothly, and the signal transmission line of the camera lens group moves smoothly, and its outer circumference is set as a first pipe section with a larger diameter and a second pipe section with a small diameter, and the second pipe section is used for inserting a flexible coil with a considerable length;

According to the foregoing, when any traction steel wire is tightened, the facing traction steel wire is simultaneously relaxed, so that the elastic element and the flexible sleeve will bend in the direction of tension, and the maximum bending angle can almost make The imaging direction of the photographic lens group is parallel to the signal transmission line.

The steering structure of the endoscope of the utility model includes: a photographic lens group, a front pivot joint, a traction wire, a front joint ring, several middle joint rings, an elastic element, a flexible sleeve, a rear joint ring, and a rear pivot joint. Parts and flexible snake tube components; wherein: when any traction steel wire is tightened, the facing traction steel wire is simultaneously relaxed, so that the elastic element and the flexible sleeve will bend in the direction of tension, and its The maximum bending angle can make the imaging direction of the photographic lens group parallel to the signal transmission line, and the viewing angle of the photographic lens group depends on the tension of the traction wire, so that the internal inspection can be carried out in detail and reliably.

The beneficial effect of the utility model is that it achieves the rotation of the photographic lens group by pulling a certain traction wire, and the photographic lens group can be rotated to a specific direction arbitrarily, so that the photographic lens group can not be affected in the pipeline. Restricted turning to obtain more detailed and accurate internal inspection; the four-way steering structure of the photographic lens group of the utility model is composed of several middle joint rings and elastic elements with simple structure, which can provide low-cost inner The steering structure of the mirror can effectively reduce the cost and improve the economic benefit.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a combined sectional view of the utility model.

Fig. 4 is a schematic diagram of the steering action of the present invention.

Fig. 5 is a schematic diagram of the second steering action of the utility model.

Fig. 6 is a schematic diagram of three steering actions of the utility model.

Explanation of symbols in the figure:

10 Photographic lens group 11 Signal transmission line

21 Front pivot piece 211 First joint hole 212 Second joint hole

22 traction wire

23 Front joint ring 231 Through hole 232 Control wire hole

                                                                           

24 Central joint ring 241 Through hole 242 Control wire hole

                                                                             

25 elastic elements 251 rear end 252 front end

                                                                                       

26 flexible sleeve

27 rear joint ring 271 first hole section 272 second hole section

273 Shoulder Ring surface 274 control wire hole

275 side hole

28 Rear pivoting piece 281 First joint hole 282 Second hole section

283 Third Hole Section 284 Shoulder Ring surface

                                                                                                                                                               

                                                                                   

30 flexible coil

Detailed ways

Before presenting a detailed description of the present invention, it should be noted that in the following description, similar elements are denoted by the same numerals.

First of all, please refer to Figures 1 to 3 together, the utility model is a "turning structure of an endoscope", which mainly includes: a photographic lens group 10, a front pivot joint 21, a traction wire 22, a front Joint ring 23, several middle joint rings 24, elastic element 25, flexible sleeve 26, rear joint ring 27, rear pivot joint 28, flexible coil 30 and other components, wherein:

The photographic lens group 10 transmits the image signal to the display through the signal transmission line 11,

Since there are many types of existing displays, and they are not within the scope of the patent application of this case, they are omitted;

The front pivotal member 21 is a pipe section, and the center is provided with a first connecting hole 211 and a second connecting hole 212, which pass through the signal transmission line 11 of the photographic lens group 10, wherein the first joint hole 211 can be inserted into the photographic lens group 10 engagement, and the second engagement hole 212 is tightly combined with the front joint ring 23;

The front joint ring 23 is a pipe segment, and its center has a through hole 231, and a number of control wire holes 232 are distributed equidistantly on the ring edge, and several side holes 233 are arranged in the radial direction, and the control wire holes 232 are used for shuttling and pulling steel wires 22. , and inserted into the second engaging hole 212 of the front pivot member 21 for tight contact, and the through hole 231 is for the elastic element 25 to pass through, and the side hole 233 is used for positioning with the elastic element 25;

Each of the several middle joint rings 24 has exactly the same shape, the center has a through hole 241, and a number of control wire holes 242 are distributed equidistantly from the ring edge, and several side holes 243 are arranged in the radial direction, and the control wire holes 242 is used for shuttling and pulling the steel wire 22, which is positioned on the periphery of the elastic element 25 at equal intervals through the through holes 241, and the side hole 243 is used for positioning with the elastic element 25;

The elastic element 25 is set in the shape of a coil spring, the rear end 251 is inserted into the first hole section 271 of the rear joint ring 27, and is resisted by the shoulder ring surface 273 of the rear joint ring 27, and its central through hole 253 is for photography. The signal transmission line 11 of the lens group 10 passes through, and the front end 252 passes through the through hole 231 of the front joint ring 23;

The flexible sleeve 26 is inserted between the front articulated ring 23 and the rear articulated ring 27, and simultaneously wraps several middle articulated rings 24 and elastic elements 25;

A number of control wire holes 242 are also equidistantly distributed on the ring edge, and several side holes 243 are arranged in the radial direction. Periphery of element 25;

The rear joint ring 27 is a pipe section, and the center is provided with a first hole section 271 with a larger diameter and a second hole section 272 with a smaller diameter, and the first hole section 271 is bounded by the second hole section 272 to form a drop shoulder ring. surface 273, the first hole segment 271 is used for inserting the elastic element 25, and at the same time, the elastic element 25 is stopped by the shoulder ring surface 273, and a number of control line holes 274 are distributed equidistantly on the ring edge, and the control line holes 274 are used for shuttle traction Steel wire 22, and several side holes 275 are arranged in the radial direction. 28 shoulder annulus 284 resist;

The center of the rear pivot member 28 is provided with a first joint hole 281 with a larger diameter, a second hole section 282 with a middle diameter, and a third hole section 283 with a small diameter, and the first joint hole 281 is bounded by the second hole section. 282 position then forms drop shoulder annulus 284, and this first joint hole 281 is for inserting rear knuckle 27, stops rear knuckle 27 with shoulder annulus 284 simultaneously, and the second hole section 282 and the third hole section 283 The junction is set as an arc 285, which is conducive to the smooth sliding of the traction wire 22, and the smooth movement of the signal transmission line 11 of the photographic lens group 10, and its outer circumference is set as the first pipe section 286 with a larger diameter and the first pipe section 286 with a small diameter. Two pipe sections 287, wherein the second pipe section 287 is used for inserting the flexible flexible pipe 30 with a considerable length.

The above-mentioned signal transmission line 11, traction steel wire 22 and flexible snake tube 30 of the utility model have considerable lengths, which are shown in a cut-off manner in the figure.

Based on the above, please refer to Fig. 4, Fig. 5 and Fig. 6. When one of the traction steel wires 22 of the utility model is tightened, the direction shown in the figure is pulled to the right, and the traction steel wires facing each other 22 will be relaxed at the same time, so that the elastic element 25 and the flexible sleeve 26 will bend towards the tensioned direction, and the maximum bending angle can make the imaging direction of the photographic lens group 10 parallel to the signal transmission line 11, that is, Said that the photographic lens group 10 can rotate 180 degrees in four directions, as shown in Figure 5, the bending angle of the photographic lens group 10 depends on the tension of the traction steel wire 22, thereby making the internal inspection work More thoroughly.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

To sum up, the utility model provides a "steering structure of an endoscope". The elastic element pierced in the middle part of the joint ring supports without affecting the bending function. The service life is longer than the previous technology and is more stable. Not only is the structure simple and the cost is low, it can effectively reduce the production process and reduce the cost of materials and labor. The utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the requirements of the relevant new patent requirements stipulations, so the application is filed in accordance with the law.

Claims (1)

1. An introscope turn to structure, formed by phtographic lens group, preceding articulated part, traction steel wire line, preceding joint ring, several joint, middle part rings, flexible member, coiled casing, posterior joint ring, back articulated part and flexible coiled pipe, it is characterized in that:

   Should be provided with first conjugate foramen and second conjugate foramen that communicates in preceding articulated part center, to pass through the signal transmission line of phtographic lens group, its first conjugate foramen and phtographic lens group plug closes, and second conjugate foramen and preceding joint ring connect airtight combination;

   This ring center, preceding joint has through hole, and Yu Huanyuan equidistantly distributes some control lines hole, and radially laying several side openings, be with flexible member location as for this side opening, the traction steel wire line shuttles back and forth in its control line hole, and insert group connects airtight in second conjugate foramen of articulated part before going into, and this through hole passes through for elasticity element;

   It is all identical that each shape is encircled in these several joint, middle part, its center is provided with through hole, equidistantly distribute some control lines hole at the ring edge equally, and radially laying several side openings, be with flexible member location as for this side opening, the traction steel wire line and shuttle back and forth in this control line hole, by through hole uniformly-spaced to be positioned the flexible member periphery;

   This flexible member is established spring state in the shape of a spiral, and its rear end insert group and is resisted by the shoulder anchor ring of posterior joint ring in the first hole section of posterior joint ring, and central open-work passes through for the signal transmission line of phtographic lens group, and front end is the through hole that passes preceding joint ring;

   This coiled casing is set between preceding joint ring and the posterior joint ring, is wrapped in several joint, middle part ring and flexible members simultaneously;

   The communicate first hole section in big footpath and the second hole section of path are established in this posterior joint ring center, and this first hole segment limit forms drop shoulder anchor ring in the second hole fragment position, this first hole section is for the plant flexible member, simultaneously with shoulder anchor ring backstop flexible member, also equidistantly distribute some control lines hole in the ring edge, and this control line hole is for shuttling back and forth the traction steel wire line, and radially laying several side openings, this side opening is to locate with flexible member, its insert group is in first conjugate foramen of back articulated part, and the shoulder anchor ring of articulated part resists after being subjected to;

   First conjugate foramen and the second hole section in middle footpath and the 3rd hole section of path in the big footpath that communicates established at this articulated part center, back, this first conjugate foramen circle then forms drop shoulder anchor ring in the second hole fragment position, this first conjugate foramen is for plant posterior joint ring, again with shoulder anchor ring backstop posterior joint ring, and section handing-over corner, the second hole Duan Yudi, three hole is made as the arc edge, this arc edge is beneficial to the traction steel wire line and slides swimmingly, and the signal transmission line activity of phtographic lens group is smooth and easy, its periphery is made as first pipeline section in big footpath and second pipeline section of path,, and this second pipeline section has the flexible coiled pipe of equivalent length for pegging graft;

   According to preceding described, when arbitrary traction steel wire line is tightened up, the traction steel wire line of facing is relaxed simultaneously, so that this flexible member and coiled casing can be towards the direction bendings of tension, several capture directions of phtographic lens group that make of its crooked maximum angle are parallel with signal transmission line.

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