Endoscope salvage inlet structure

Abstract

The utility model discloses an endoscope salvage inlet structure, which relates to the technical field of endoscope salvage and comprises an insertion tube connected with a traction structure; the sleeve is arranged on the outer side of the insertion tube in a sleeving manner; the clamp channel inlet is positioned on one side of the sleeve; the first end of the close-wound spring is connected to the inner side of the pincer channel inlet corresponding to the pincer channel inlet, and the second end penetrates through the side wall of the insertion tube and extends into the insertion tube; the sleeve with the clamp channel inlet is arranged outside the insertion tube, so that the insertion tube can be protected, and the influence on the structure of the insertion tube is small; the densely-wound spring is connected with the clamp channel inlet and extends into the insertion pipe, an independent channel for the fishing clamp to penetrate through is formed in the densely-wound spring, the fishing clamp can penetrate through the densely-wound spring easily, and mutual interference between the fishing clamp and other structures in the insertion pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to endoscope fishing technical field, especially endoscope fishing entrance structure. BACKGROUND

[0002] Industrial endoscope is a kind of nondestructive testing equipment for industrial field, can be intuitively checked inside mechanical parts, pipeline, container etc., plays an important role in aerospace, automobile manufacturing, petrochemical industry, electric power and many other industries.

[0003] Industrial endoscope fishing forceps is used in narrow space or difficult to reach area with industrial endoscope, is used for the tool of fetching and fishing object, fishing forceps is inserted into the area needing fishing through the insertion tube of industrial endoscope, under the visualization guidance of industrial endoscope, operating handle controls the opening of the jaw, makes the jaw close to fishing target, then tightens the jaw, firmly holds target object, finally takes out endoscope and fishing forceps together, completes fishing operation.

[0004] In prior art, the patent with fishing forceps endoscope with publication number CN203930091U is an industrial endoscope, at least has the following deficiencies in the use process of endoscope: because there is pull wire and cable structure in support tube, in the process of passing fishing forceps into support tube, fishing forceps head end is easily blocked by internal structure of support tube, increases the difficulty of fishing forceps installation. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art, provides an endoscope fishing entrance structure.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] An endoscope fishing entrance structure, comprising:

[0008] Insertion tube, connected with pull structure;

[0009] Sleeve, sleeved outside the insertion tube;

[0010] Jaw entrance, located on one side of the sleeve;

[0011] The tightly wound spring is connected to the inside of the jaw entrance with the first end corresponding to the jaw entrance, and the second end extends to the insertion tube through the side wall of the insertion tube.

[0012] Further, the side wall of the insertion tube is provided with a perforation for the tightly wound spring to pass through.

[0013] Further, the jaw entrance is inclinedly arranged on one side of the sleeve.

[0014] Further, the pincer channel entrance is provided with an entrance assembly, and the first end of the tightly wound spring is connected with a spring pipe welding piece, and the spring pipe welding piece is connected with the entrance assembly through screw threads.

[0015] Further, the entrance assembly comprises a tubular entrance piece and a nut, the entrance piece is connected with the nut through the outside of the outer end of the pincer channel entrance, and the outside of the entrance piece is provided with a step which abuts against the inside of the pincer channel entrance.

[0016] Further, one side of the sleeve is connected with a side cover through a bolt, and the pincer channel entrance is located on the side cover.

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] The sleeve with the pincer channel entrance is arranged outside the insertion pipe, the tightly wound spring is connected inside the sleeve, only passes through the insertion pipe, and has little influence on and change to the structure of the insertion pipe; the tightly wound spring is connected with the pincer channel entrance and extends into the insertion pipe, an independent tubular channel for the fishing pincers is formed in the tightly wound spring, the fishing pincers can be easily threaded through the tightly wound spring, and the fishing pincers are prevented from interfering with other structures in the insertion pipe; the tubular channel formed by the tightly wound spring has good flexibility and can be bent and deformed and exist in the insertion pipe adaptively. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an internal schematic view of the utility model and the connecting structure thereof.

[0020] Figure 2 It is an internal schematic view of the utility model.

[0021] Figure 3 It is an external schematic view of the utility model and the connecting structure thereof.

[0022] Figure 4 It is a schematic view of the utility model and the connecting structure thereof in a state of removing the side cover.

[0023] In the drawing: 1, insertion pipe; 2, sleeve; 3, pincer channel entrance; 4, entrance assembly; 5, tightly wound spring; 6, perforation; 7, spring pipe welding piece; 8, side cover; 9, bolt;

[0024] 41, entrance piece; 42, nut; 411, step. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described examples are only a part of the examples of the utility model, but not all the examples. The components of the utility model embodiments described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] In the description of the utility model, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" that may appear should be understood broadly, for example, it can be fixedly connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the description of the utility model, it should be noted that, unless explicitly defined and limited, the term "provided with" that may appear should be understood broadly, for example, the object of "provided with" can be part of the body, or it can be arranged separately from the body and connected to the body, and the connection can be detachable connection, or it can be non-detachable connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] The utility model will be further described in detail below in combination with examples.

[0029] The specific embodiment of the endoscope fishing entrance structure provided by the utility model is as follows:

[0030] Please refer to Figures 1-4 , the endoscope fishing entrance structure comprises an insertion tube 1, a sleeve 2, a channel entrance 3, an entrance assembly 4 and a tightly wound spring 5.

[0031] One end of the insertion tube 1 is connected with a pulling structure, and the pulling structure of the embodiment is a novel variable-diameter pulling structure disclosed in the patent CN216479766U applied by the applicant. The other end of the insertion tube 1 is connected with an extension tube.

[0032] The sleeve 2 is sleeved on the outer side of the insertion tube 1, and the inner annular side wall of the sleeve 2 and the outer annular side wall of the insertion tube 1 have an annular gap therebetween.

[0033] The clamp channel entrance 3 is located on one side of the sleeve 2; the sleeve 2 is connected with the side cover 8 on one side through the bolt 9, the clamp channel entrance 3 is located on the side cover 8, the side cover 8 is an arc-shaped plate structure, and the side cover 8 is connected and fixed as a part of the side wall of the sleeve 2. The bolt 9 is arranged at the four corners of the side cover 8, and the sleeve 2 is provided with a threaded hole matched with the bolt 9.

[0034] The clamp channel entrance 3 is obliquely arranged on one side of the sleeve 2, and the outer end of the clamp channel entrance 3 is inclined to one side of the pulling structure. Specifically, the straight line where the center line of the clamp channel entrance 3 is located and the straight line where the center line of the sleeve 2 is located have an included angle, and the included angle is not greater than sixty degrees.

[0035] The entrance assembly 4 is arranged at the clamp channel entrance 3, the entrance assembly 4 comprises a tubular entrance piece 41 and a nut 42, the entrance piece 41 is connected with the nut 42 through the outer side of the outer end of the clamp channel entrance 3, and the outer side of the entrance piece 41 is provided with a step 411 abutting against the inner side of the clamp channel entrance 3. The outer side of the outer end of the entrance piece 41 is provided with an external thread matched with the nut 42, the entrance piece 41 is arranged from the inner side of the side cover 8 through the clamp channel entrance 3 in the installation process, the step 411 abuts against the inner side of the clamp channel entrance 3, then the nut 42 is screwed on the outer side of the outer end of the entrance piece 41, and the nut 42 and the step 411 fix the entrance piece 41 at the clamp channel entrance 3.

[0036] The first end of the tightly wound spring 5 is connected to the inner side of the clamp channel entrance 3 and the second end extends into the insertion tube 1 through the side wall of the insertion tube 1.

[0037] The first end of the tightly wound spring 5 is connected with the tubular spring pipe welding piece 7, the material of the tightly wound spring 5 is 304 stainless steel, the connection mode of the tightly wound spring 5 and the spring pipe welding piece 7 is welding, and the end of the tightly wound spring 5 extends into the inner side of the spring pipe welding piece 7; the material of the spring pipe welding piece 7 is brass, the brass is easy to be welded with the stainless steel, and the welding is firm and stable.

[0038] The spring pipe welding piece 7 is connected with the entrance assembly 4 through threads. The outer side of the spring pipe welding piece 7 is provided with an external thread, the inner end of the entrance piece 41 of the entrance assembly 4 is provided with an internal thread matched with the external thread, the spring pipe welding piece 7 can be connected with the entrance piece 41 through threads, and then the detachable connection of the tightly wound spring 5 and the entrance assembly 4 and the correspondence of the tightly wound spring 5 and the clamp channel entrance 3 are realized.

[0039] Due to the inclination of the clamp channel entrance 3 and the entrance assembly 4, the outer end of the tightly wound spring 5 is inclined and bent to enter the insertion tube 1, and the side wall of the insertion tube 1 is provided with a vertical strip-shaped perforation 6 for the tightly wound spring 5 to pass through. The vertical strip-shaped perforation 6 is used for the smoothly bending of the tightly wound spring 5 to enter the insertion tube 1, and then the fishing tool is smoothly passed through in the tightly wound spring 5.

[0040] The installation process: the side cover 8 is in an uninstalled state; the tightly wound spring 5 is welded with the spring pipe welding piece 7;

[0041] The tightly wound spring 5 is inserted through the insertion tube 1 and its extension tube, one end corresponding to the fishing forceps outlet at the end of the endoscope lens, and the other end is exposed outside through the perforation 6 and the spring tube welding piece 7;

[0042] The inlet assembly 4 is installed at the forceps channel inlet 3 of the side cover 8;

[0043] The spring tube welding piece 7 corresponds to the internal thread at the inner end of the inlet piece 41, the inlet piece 41 is rotated, and the spring tube welding piece 7 is connected with the inlet piece 41;

[0044] The inlet piece 41 passes through the forceps channel inlet 3, and the nut 42 is screwed at the outer end of the inlet piece 41 to fix the inlet piece 41;

[0045] The side cover 8 is connected with the sleeve 2 through the bolt 9, and the installation is completed.

[0046] When the fishing forceps is inserted, the head end of the fishing forceps enters from the inner side of the inlet piece 41, passes through the spring tube welding piece 7, and enters the inner side of the tightly wound spring 5; when the fishing forceps is inserted, the fishing forceps advances along the inner side of the tightly wound spring 5, and the tightly wound spring 5 does not interfere with other structures inserted into the tube 1.

[0047] Finally, it should be noted that the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified without the need for the technical solutions recorded in the foregoing embodiments to pay creative labor, or equivalent replacement for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An endoscopic retrieval inlet structure, characterized in that, include: Insert tube (1), connected to the traction structure; The sleeve (2) is fitted over the outside of the insertion tube (1); The clamp inlet (3) is located on one side of the sleeve (2); The tightly wound spring (5) has its first end connected to the inside of the clamping channel inlet (3) corresponding to the clamping channel inlet (3), and its second end extends through the side wall of the insertion tube (1) into the insertion tube (1).

2. The endoscope retrieval inlet structure according to claim 1, characterized in that, The side wall of the insertion tube (1) is provided with a perforation (6) for the tightly wound spring (5) to pass through.

3. The endoscope retrieval inlet structure according to claim 1, characterized in that, The jackway inlet (3) is inclined and located on one side of the sleeve (2).

4. The endoscope retrieval inlet structure according to claim 1, characterized in that, An inlet assembly (4) is provided at the inlet (3) of the clamp channel, and a spring tube welded part (7) is connected to the first end of the tightly wound spring (5). The spring tube welded part (7) and the inlet assembly (4) are connected by threads.

5. The endoscope retrieval inlet structure according to claim 4, characterized in that, The inlet assembly (4) includes a tubular inlet piece (41) and a nut (42). The inlet piece (41) passes through the outer side of the outer end of the clamping channel inlet (3) and is connected to the nut (42). The outer side of the inlet piece (41) is provided with a step (411) that abuts against the inner side of the clamping channel inlet (3).

6. The endoscope retrieval inlet structure according to any one of claims 3-5, characterized in that, The sleeve (2) is connected to a side cover (8) by bolts (9) on one side, and the jack entrance (3) is located on the side cover (8).

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