CN112965235B

CN112965235B - Endoscope probe

Info

Publication number: CN112965235B
Application number: CN202110156940.XA
Authority: CN
Inventors: 钟泉; 高志斌
Original assignee: Shenzhen Weishi Photoelectric Technology Co ltd
Current assignee: Shenzhen Weishi Photoelectric Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-09-30
Anticipated expiration: 2041-02-04
Also published as: CN112965235A

Abstract

The invention relates to an endoscope probe, which comprises an inner cylinder and an outer sleeve, wherein a light source is arranged in the inner cylinder, a camera is arranged at the upper end of the inner cylinder, the outer sleeve is arranged on the inner cylinder through a threaded connecting sleeve on the outer surface of the upper part of the inner cylinder, a limit ring which is wound by a circle along the circumferential direction of the outer sleeve extends inwards along the radial direction of the upper end of the outer sleeve, a sliding part which can slide up and down is arranged between the bottom end of the limit ring and the upper end of the inner cylinder in a matching and limiting mode, the sliding part is reversely buckled on the camera in a barrel-shaped structure, the top end of the sliding part penetrates out of the limit ring, and a camera window is arranged on the side wall of the sliding part. The sliding part is simple in structure and stable in connection, the sliding part can slide up and down to buffer the force applied to the probe when the force is applied to the sliding part, and meanwhile, the sliding part is prevented from falling off through the limiting structure formed between the limiting ring on the outer sleeve and the sliding part, so that the camera is protected.

Description

Endoscope probe

Technical Field

The invention relates to an endoscope, in particular to an industrial endoscope probe.

Background

The endoscope is designed according to the detection requirements of the inner surfaces of straight pipelines in petrochemical industry, industrial machinery, electronic and electrical industry, aerospace and the like, and the suspicious points and the flaw detection parts which are observed are frozen, amplified, analyzed, measured and reported by a unique software processing system, so that the accuracy of judging the flaw detection parts on the inner wall of the pipeline is greatly improved. The device has the unique advantages that the visual range of people can be prolonged, the visual direction can be changed at will, and the real condition of the inner surface of an object can be accurately observed without decomposing equipment or parts for destructive inspection, which cannot be replaced by other detection instruments. However, in the existing industrial endoscope, the probe part and the probe shell are fixedly connected to the sleeve of the installation camera through welding, so that the welding structure is unstable due to the fact that the probe is small and not easy to weld, and the welding part can be subjected to the action of reaction force when touching the inner wall of the pipeline in the detection process, the welding part is cracked, so that the probe shell falls off, and the use is influenced.

Disclosure of Invention

Aiming at the existing defects, the invention provides an endoscope probe.

The technical scheme adopted by the invention for solving the technical problems is as follows: an endoscope probe comprises an inner barrel and an outer sleeve, wherein a light source is arranged in the inner barrel, a camera is arranged at the upper end of the inner barrel, the outer sleeve is sleeved on the inner barrel on the outer surface of the upper part of the inner barrel through threaded connection, a limit ring which surrounds the outer sleeve in a circle is extended inwards along the radial direction of the outer sleeve at the upper end of the outer sleeve, a sliding part which can slide up and down is arranged between the bottom end of the limit ring and the upper end of the inner barrel in a matching and limiting manner, the sliding part is reversely buckled on the camera in a barrel-shaped structure, the top end of the sliding part penetrates out of the limit ring, and a transparent camera window corresponding to the camera is arranged on the side wall of the sliding part; the sliding part comprises an inner fixed cylinder fixedly connected to the upper end of the inner cylinder, an outer sliding cylinder which is arranged in the limiting ring in a matching manner and slides up and down on the outer surface of the inner fixed cylinder, and a barrel cover fixedly connected to the top end of the outer sliding cylinder; the camera is arranged in the inner fixed cylinder, the outer sliding cylinder extends upwards from a position corresponding to the top end of the inner fixed cylinder to form a window side wall for light-transmitting camera shooting, and the camera window is arranged on the window side wall; the lower end of the outer sliding cylinder extends outwards along the radial direction of the outer sliding cylinder to form a limiting step around the circumferential direction of the outer sliding cylinder, and the limiting step is abutted against the bottom end of the limiting ring for limiting in the process that the outer sliding cylinder slides upwards; the lower end of the inner fixed cylinder extends outwards along the radial direction of the inner fixed cylinder to form a positioning step around the circumferential direction of the inner fixed cylinder; the limiting step is provided with a notch along the circumferential direction, the outer wall of the inner fixing cylinder extends outwards along the radial direction of the outer wall of the inner fixing cylinder to form an extension platform which can be clamped into the notch, and the width of the extension platform is not larger than that of the notch.

Preferably, the camera window and the notch are radially and symmetrically arranged on the side wall of the outer sliding cylinder.

Preferably, the extension platform is provided with a through hole perpendicular to a bottom surface thereof.

Preferably, a positioning block is arranged in the outer sliding cylinder, the bottom end of the positioning block can be abutted against the top end of the inner fixing cylinder, and two ends of the positioning block are correspondingly connected to two opposite sides of the inner wall of the outer sliding cylinder.

Preferably, the distance from the bottom end of the positioning block to the upper surface of the extension platform is not greater than the distance from the bottom end of the barrel cover to the top of the limiting ring.

Preferably, the inner fixed cylinder and the outer sliding cylinder are provided with reflection slopes for reflecting light rays, which are inclined radially outward and downward, at positions corresponding to the lower end of the camera window.

Preferably, a prism is arranged between the camera and the camera window.

Preferably, a light-transmitting window is arranged on the side wall of the sliding part at a position close to the camera window, and a light guide part with one end corresponding to the light-transmitting window and the other end corresponding to the light source in the inner barrel is arranged in the sliding part.

The invention has the beneficial effects that: the sliding part is positioned between the inner cylinder and the outer sleeve, the sliding part can slide up and down under stress to buffer the force applied to the probe, and meanwhile, the sliding part is prevented from falling off through the limiting structure formed between the limiting ring on the outer sleeve and the sliding part, so that the camera is protected.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic exploded view of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sliding barrel according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of an inner fixed cylinder according to an embodiment of the present invention;

part names and serial numbers in the figure: 1-inner cylinder 2-outer sleeve 20-spacing ring 3-light source 4-camera 5-sliding part 50-inner fixed cylinder 51-outer sliding cylinder 52-barrel cover 500-positioning step 501-extension platform 510-window side wall 511-spacing step 512-positioning block 5010-through hole 5110-notch 6-camera window 7-reflection inclined plane 8-prism 9-light transmission window 90-light guide part.

Detailed Description

For the purpose of more clearly illustrating the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, for clear and complete description, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention. In addition, directional terms used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer to directions only as shown in the attached drawings, and are used for better and clearer explanation and understanding of the present invention, and do not indicate or imply orientation which the present invention must have, and thus, should not be construed as limiting the present invention.

The embodiment of the invention is shown in figures 1 to 5, an endoscope probe comprises an inner cylinder 1 and an outer sleeve 2, wherein a light source 3 is arranged in the inner cylinder 1, a camera 4 is arranged at the upper end of the inner cylinder 1, the outer sleeve 2 is sleeved on the inner cylinder 1 at the outer surface of the upper part of the inner cylinder 1 through threaded connection, the inner cylinder 1 is used as the front end of an insertion tube for arranging the camera 4 and the light source 3 in the inner cylinder, the camera 4 is directly arranged in the inner cylinder 1, the light source 3 can be directly arranged in the inner cylinder 1 or can be arranged at the far end and then is guided through an optical fiber, the light emitted by the light source 3 is emitted from the upper end of the inner cylinder 1 to illuminate the position to be detected, the camera 4 is used for shooting the image of the irradiated part, the outer sleeve 2 is sleeved on the outer part of the inner cylinder 1 and then is connected through the matching thread between the external thread on the outer wall of the inner cylinder 1 and the internal thread on the inner wall of the outer sleeve 2, the outer sleeve 2 is convenient to assemble and disassemble on the inner cylinder 1, the upper end of the outer sleeve 2 extends inwards along the radial direction to form a circle of limiting ring 20 around the circumference of the outer sleeve 2, namely the diameter of the sleeve is reduced at the end part of the outer sleeve 2 through the limiting ring 20, at the moment, the limiting ring 20 forms a limiting structure, a part of the inner width of the outer sleeve 2, which is larger than the inner diameter of the limiting ring 20, cannot fall off from the outer sleeve 2, the limiting ring 20 extends out of the outer sleeve 2 and is integrally formed with the outer sleeve 2, the processing is convenient, the processing technology is reduced, a sliding part 5 capable of sliding up and down is matched and limited between the bottom end of the limiting ring 20 and the upper end of the inner cylinder 1, namely, the sliding part 5 is movably connected in the outer sleeve 2 and slides between the bottom end of the limiting ring 20 and the upper end of the inner cylinder 1, slides up and abuts against the bottom end of the limiting ring 20, and slides down and abuts against the end part of the inner cylinder 1, the sliding distance can be set according to different use requirements, the sliding limit of the endoscope does not affect the normal use of the camera 4 in sliding, as the probe of the endoscope is of a miniaturized structure, the sliding distance is not too large, only the endoscope can slide and unload force when being stressed, and correspondingly buffer the force, the sliding part 5 is reversely buckled on the camera 4 in a barrel-shaped structure, the top end of the sliding part penetrates out of the limit ring 20, the side wall of the sliding part 5 is provided with a transparent camera window 6 corresponding to the camera 4, the camera window 6 is the same as the existing structure, one piece of glass is covered or embedded in a through hole to form a window, preferably, the glass is sapphire glass, the scratching in use is avoided, the use is influenced, and thus the sliding part 5 is movably connected in the outer sleeve 2 and penetrates out of the limit ring 20, the top with the probe is given the closing cap and is got up, and camera window 6 on the 5 lateral walls of slider just makes this probe form the endoscope that looks sideways, camera 4 detects through camera window 6 and shoots, the light that the light source in the inner tube 1 sent transmits away through camera window 6, the light filling of throwing light on when shooing camera 4, such simple structure, the workable production, and it is firm to connect, slider 5 department is between inner tube 1 and outer sleeve 2, the atress can slide from top to bottom and cushion the power that the probe received, simultaneously through the limit structure who forms between spacing ring 20 on the outer sleeve 2 and the slider 5, just, the droing of slider 5 has been prevented, protect camera 4.

In a further improvement, as shown in fig. 1, the sliding member 5 includes an inner fixed cylinder 50 fixedly connected to the upper end of the inner cylinder 1, an outer sliding cylinder 51 arranged in the limiting ring 20 in a matching manner and sliding up and down on the outer surface of the inner fixed cylinder 50, and a cylinder cover 52 fixedly connected to the top end of the outer sliding cylinder 51, i.e. the inner fixed cylinder 50 and the outer sliding cylinder 51 are both located between the inner cylinder 1 and the outer sleeve 2 and both penetrate out of the limiting ring 20, the cylinder cover 52 is arranged at the end of the outer sliding cylinder 51 as a bottom cover of a barrel-shaped structure, the ends of the outer sliding cylinder 51 and the inner fixed cylinder 50 are covered to form a containing cavity, the cylinder cover 52 is located outside the outer sleeve 2, when the probe is used, the cylinder cover 52 touches the inner wall of the object to be detected, at this time, the inner fixed cylinder 50 and the inner cylinder 1 are fixedly connected and cannot move, a fixed rigid protection structure is formed for the camera 4 arranged in the inner cylinder 1, the outer diameter of the outer sliding cylinder 51 is matched with the inner diameter of the limiting ring 20, after the outer sliding cylinder 51 is arranged in the limiting ring 20, an overlarge gap cannot be generated between the outer sliding cylinder 51 and the limiting ring, at the moment, the outer sliding cylinder 51 drives the barrel cover 52 to slide relative to the outer sleeve 2 and the inner fixing cylinder 50, the barrel cover 52 is fixedly connected to the top end of the outer sliding cylinder 51, the outer sliding cylinder 51 and the barrel cover are combined into a whole, the reaction force applied when the barrel cover 52 touches the inner wall of an object to be detected can act on the outer sliding cylinder 51, the outer sliding cylinder 51 can slide and release force, the acting force is buffered, and the stability of structural connection of the probe is ensured; the camera 4 is arranged in the inner fixed cylinder 50, the outer sliding cylinder 51 extends upwards from a position corresponding to the top end of the inner fixed cylinder 50 to form a window side wall 510 for light-transmitting camera shooting, the camera window 6 is arranged on the window side wall 510, namely the height of the outer sliding cylinder 51 is greater than that of the inner fixed cylinder 50, the raised part forms the window side wall 510, the camera window 6 is arranged on the window side wall 510, a corresponding structure does not need to be arranged on the inner fixed cylinder 50, and the strength of the inner fixed cylinder 50 and the smoothness of the outer sliding cylinder 51 during sliding are kept; as shown in fig. 4, the lower end of the outer sliding tube 51 extends outward along the radial direction thereof with a limit step 511 around the circumference thereof, the limit step 511 abuts against the bottom end of the limit ring 20 during the upward sliding of the outer sliding tube 51 for limiting, at this time, when the outer sliding tube 51 slides upward, the upper surface of the limit step 511 abuts against the bottom end of the limit ring 20, preventing the outer sliding tube 51 from sliding upward, and also preventing the outer sliding tube 51 from sliding off from the outer sleeve 2, the limit structure between the two is simple and practical, the limit ring 20 and the outer sleeve 2 are integrated, the limit step 511 and the outer sliding tube 51 are integrated, the structure is firm, during the production, the inner fixed tube 50 is firstly fixed at the end of the inner fixed tube 1, then the outer sliding tube 51 is sleeved on the inner fixed tube 50, then the outer sleeve 2 is sleeved on the outer sliding tube 51, and then is connected and fixed with the inner tube 1 through a screw thread, the production and assembly are easier, welding is not needed, and the problem that the inside of the cylindrical structure is not easy to weld is solved; the lower end of the inner fixed cylinder 50 extends radially outward with a positioning step 500 around the circumference thereof, so as to prevent the outer sliding cylinder 51 from falling into the outer sleeve 2 when sliding downward, and to enable the outer sliding cylinder to slide within a certain range. At this moment spacing step 511 is equipped with a breach 5110 along circumference, the outer wall of interior fixed cylinder 50 has the extension platform 501 that can block into breach 5110 along its radial outside extension, the width that extends platform 501 is not more than breach 5110, and spacing step 511 just forms a crisscross structure with extension platform 501 like this, and extension platform 501 blocks just to have prevented outer slip section of thick bamboo 51's rotation in going into breach 5110 for it can only slide from top to bottom, has guaranteed that camera 4 can shoot through camera window 6 and has detected. At this time, the camera window 6 and the notch 5110 are radially and symmetrically arranged on the side wall of the outer sliding cylinder 51, so that the structure of the outer sliding cylinder 51 is uniform, the structural strength is further ensured, the stress can be well dispersed, and the camera window and the notch 5110 cannot be excessively concentrated on a certain position. The same extension platform 501 is provided with through holes 5010 perpendicular to its bottom surface, which through holes 5010 are not affected by the camera 4 and can be used to channel other components, such as light from a light source, better to direct the light out of the probe.

In a further improvement, as shown in fig. 4, a positioning block 512 is disposed in the outer sliding cylinder 51, the bottom end of which can abut against the top end of the inner fixed cylinder 50, two ends of the positioning block 512 are correspondingly connected to two opposite sides of the inner wall of the outer sliding cylinder 51, that is, the positioning block 512 is disposed between any two points in the inner radial direction of the outer sliding cylinder 51, similar to a chord on a circle, and is integrally formed with the outer sliding cylinder 51, the inner portion of the outer sliding cylinder 51 is divided into two parts by the positioning block 512, one part can be used for corresponding to the position of the camera 4, and the other part can be used as a channel for light emitted by the light source 3, which do not affect each other, and can better perform light supplement and camera detection. The distance from the bottom end of the positioning block 512 to the upper surface of the extending platform 501 is not greater than the distance from the bottom end of the barrel cover 52 to the top of the limiting ring 20, so that when the outer sliding barrel 51 is forced to slide downwards, the positioning block 512 abuts against the top end of the inner fixed barrel 50, then the outer sliding barrel 51 stops sliding downwards continuously, the barrel cover 52 cannot be in contact with the limiting ring 20, and the connection stability and firmness of the barrel cover 52 cannot be influenced.

In a further modification, as shown in fig. 2, the inner fixed cylinder 50 and the outer sliding cylinder 51 are provided with a reflection inclined plane 7 which is inclined radially outward and downward at a position corresponding to the lower end of the camera window 6 for reflecting light, so that light can be better collected and reflected to a part to be detected.

Further improvement, as shown in fig. 1, a prism 8 is arranged between the camera 4 and the camera window 6, the condition of the detected part is better shot by the camera 4 through the reflection of the prism 8 to light, and meanwhile, the shooting direction of the camera 4 can be changed by replacing the prisms 8 with different structures, so that the shooting detection at different visual angles is realized.

Further improvement, as shown in fig. 1 to 4, a light transmission window 9 is arranged at a position, adjacent to the camera window 6, of the side wall of the sliding member 5, a light guide member 90 is arranged in the sliding member 5, wherein one end of the light guide member corresponds to the light transmission window 9, and the other end of the light guide member corresponds to the light source 3 in the inner barrel 1, so that the light guide member 90 and the camera 4 are mutually spaced, the installation of each other is convenient, the light guide member 90 conducts light emitted by the light source 3 in the inner barrel 1 to the light transmission window 9, and then the light is transmitted out through the light transmission window 9 to supplement light for shooting the camera 4.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. An endoscopic probe, characterized by: the camera comprises an inner cylinder and an outer sleeve, wherein a light source is arranged in the inner cylinder, a camera is arranged at the upper end of the inner cylinder, the outer sleeve is sleeved on the inner cylinder through a threaded connection on the outer surface of the upper part of the inner cylinder, a limit ring which surrounds the inner cylinder in a circle in the circumferential direction extends inwards in the radial direction of the upper end of the outer sleeve, a sliding part which can slide up and down is arranged between the bottom end of the limit ring and the upper end of the inner cylinder in a matching and limiting sliding mode, the sliding part is reversely buckled on the camera in a barrel-shaped structure, the top end of the sliding part penetrates out of the limit ring, a light-transmitting camera window corresponding to the camera is arranged on the side wall of the sliding part, the sliding part comprises an inner fixed cylinder fixedly connected at the upper end of the inner cylinder, an outer sliding cylinder which is arranged in the limit ring in a matching mode and slides up and down on the outer surface of the inner fixed cylinder, and a barrel cover fixedly connected at the top end of the outer sliding cylinder; the camera is arranged in the inner fixed cylinder, the outer sliding cylinder extends upwards from a position corresponding to the top end of the inner fixed cylinder to form a window side wall for light-transmitting shooting, and the camera window is arranged on the window side wall; the lower end of the outer sliding cylinder extends outwards along the radial direction of the outer sliding cylinder to form a limiting step around the circumferential direction of the outer sliding cylinder, and the limiting step is abutted against the bottom end of the limiting ring for limiting in the process that the outer sliding cylinder slides upwards; the lower end of the inner fixed cylinder extends outwards along the radial direction of the inner fixed cylinder to form a positioning step around the circumferential direction of the inner fixed cylinder; the limiting step is provided with a notch along the circumferential direction, the outer wall of the inner fixing cylinder extends outwards along the radial direction of the outer wall of the inner fixing cylinder to form an extension platform which can be clamped into the notch, and the width of the extension platform is not larger than that of the notch.

2. The endoscope probe of claim 1, wherein the camera window and the notch are disposed radially and symmetrically on a side wall of the outer sliding cylinder.

3. The endoscope probe of claim 1, wherein the extension platform is provided with a through hole perpendicular to a bottom surface thereof.

4. The endoscope probe according to claim 1, wherein a positioning block is disposed in the outer sliding cylinder, the bottom end of the positioning block can abut against the top end of the inner fixed cylinder, and two ends of the positioning block are correspondingly connected to two opposite sides of the inner wall of the outer sliding cylinder.

5. The endoscope probe of claim 4, wherein the distance from the bottom end of the positioning block to the upper surface of the extension platform is not greater than the distance from the bottom end of the barrel cover to the top of the limiting ring.

6. The endoscope probe of claim 1, wherein the inner fixed cylinder and the outer sliding cylinder are provided with a reflection slope for reflecting light rays which is inclined radially outward and downward at a position corresponding to the lower end of the viewing window of the camera.

7. The endoscope probe of claim 1, wherein a prism is disposed between the camera head and the camera head window.

8. The endoscope probe of claim 1, wherein the side wall of the sliding member is provided with a light transmissive window at a position adjacent to the camera window, and a light guide member having one end corresponding to the light transmissive window and the other end corresponding to the light source in the inner barrel is provided in the sliding member.