Side-view observation head and side-view endoscope

Abstract

The utility model relates to a side view observation head and a side view endoscope, and relates to the field of intracavitary observation devices.The side view observation head comprises a side view sleeve and a sleeve fastening structure, the side view sleeve can be arranged on the outer side of a direct view observation head of the direct view endoscope in a sleeving mode and can rotate on the direct view observation head, a lateral lens is arranged at the end of the side view sleeve, and the lateral lens is arranged on the side view sleeve. The sleeve fastening structure is arranged between the direct-view observation head and the side-view sleeve and can lock or unlock the rotating position of the side-view sleeve on the direct-view observation head, so that positions at different angles on the side can be conveniently observed. The side-view observation head is used in the side-view endoscope, and the side-view observation head can be installed on a direct-view endoscope to achieve the side-view function.

Description

Technical Field

[0001] The present application relates to the field of intracavitary observation devices, and in particular to a side-viewing observation head. In addition, the present application also relates to a side-viewing endoscope. Background Art

[0002] With the development of modern industrial technology, various industrial equipment are becoming more and more popular, and the scope of use of industrial equipment is becoming more and more extensive. There are usually various pipelines inside industrial equipment, and it is often necessary to observe the conditions inside the pipelines when performing equipment maintenance. In the medical field, it is also often necessary to observe and inspect the inside of the patient's hollow organs to detect lesions inside the human body. For this reason, people have designed endoscopes that can be inserted into the inside of pipelines or cavities from the opening outside the equipment or the human body to observe the internal conditions of pipelines and cavities.

[0003] An endoscope usually includes an illumination component and an imaging component. The illumination component introduces a light source into a pipe or cavity to illuminate the observation area; the imaging component is used to form an image in the pipe or cavity and transmit the image to the outside for observation from the outside or storage using an external storage device. The illumination component and the imaging component are usually arranged in a flexible sheath. By setting sheaths of different diameters and lengths, the endoscope can be used to observe deep locations in pipes of different diameters and at different distances, which greatly enriches the means of examining the internal conditions of the equipment and the internal conditions of the human body.

[0004] The imaging components of existing endoscopes usually guide the illumination light out from the end of the distal end of the endoscope, and the imaging components usually also guide the image in front of the endoscope from the end of the distal end of the endoscope, so it is more suitable for observing the image in front of the endoscope. The image of the side wall of the pipeline can only be observed at a certain distance from the endoscope through an oblique perspective, and it is difficult to form a clear front image of the side wall of the pipeline at a close distance. Although some endoscopes capable of side observation have recently appeared, existing side observation endoscopes can usually only observe a fixed side perspective, which affects the convenience of use. Utility Model Content

[0005] In order to improve the convenience of lateral observation of the endoscope, the present application provides a side-viewing observation head and a side-viewing endoscope.

[0006] The side-view observation head provided in this application adopts the following technical solution:

[0007] A side-view observation head comprises a side-view sleeve and a sleeve fastening structure, wherein the side-view sleeve can be sleeved on the outside of a direct-view observation head of a direct-view endoscope and can rotate on the direct-view observation head, a side lens is arranged at the end of the side-view sleeve, and the sleeve fastening structure is arranged between the direct-view observation head and the side-view sleeve to lock or unlock the rotational position of the side-view sleeve on the direct-view observation head.

[0008] By adopting the above technical solution, the lateral lens arranged at the end of the side-view sleeve can guide the illumination light emitted from the end of the direct-view observation head to the side of the side-view sleeve, and guide the image light on the side of the side-view sleeve to the imaging component at the end of the direct-view observation head, so that the side of the side-view sleeve can be imaged and observed. By rotating the side-view sleeve on the direct-view observation head, the side wall of the pipeline at different angles to the side of the side-view sleeve can be imaged and observed, thereby improving the all-round observation effect of the side wall of the pipeline. By using the sleeve fastening structure arranged between the direct-view observation head and the side-view sleeve, the angle of lateral observation can be conveniently adjusted, and the viewing angle can be fixed at the required viewing angle.

[0009] In a specific possible implementation scheme, the side wall of the side viewing sleeve is provided with a side window hole, and the side lens is arranged between the side window hole and the direct viewing head, so as to be able to guide the illumination light emitted by the direct viewing head to be emitted through the side window hole, and to be able to guide the image light from the side window hole to the direct viewing head.

[0010] By adopting the above technical solution, by utilizing the lateral window hole arranged on the side wall of the side viewing sleeve, the lateral lens can be arranged inside the side viewing sleeve while forming a lateral observation channel, thereby reducing the interference of the side viewing observation head when it is pushed forward in the pipeline and improving the structural stability of the lateral lens.

[0011] In a specific possible implementation manner, a side-view mirror mounting structure is formed at the end of the side-view sleeve, and the side-view lens is arranged on the side-view mirror mounting structure and is arranged toward the direct-view observation head.

[0012] By adopting the above technical solution and arranging the lateral lens on the side mirror mounting structure at the end of the test sleeve, it is possible to reduce the blocking of light by the side view sleeve and improve the viewing angle of lateral observation.

[0013] In a specific possible implementation scheme, the sleeve fastening structure includes an adapter and a fastening nut, the adapter is fixed to the direct viewing head, and the fastening nut is rotatably connected to the side viewing sleeve and threadedly connected to the adapter.

[0014] By adopting the above technical solution, the axial position between the fastening nut and the adapter can be easily adjusted by utilizing the threaded connection between the fastening nut and the adapter, so that the side viewing sleeve and the adapter are pressed and loosened against each other, and the mutual rotation between the side viewing sleeve and the fastening nut is restricted when pressed, thereby locking the rotational position of the side viewing sleeve on the direct viewing head, that is, limiting the lateral viewing angle of the side viewing sleeve; and when loosened, the side viewing sleeve and the fastening nut can rotate freely, so that the side viewing sleeve can rotate freely on the direct viewing head, thereby conveniently adjusting the lateral viewing angle of the side viewing sleeve.

[0015] In a specific possible implementation manner, the outer wall of the end of the side-view sleeve is provided with two fastening retaining rings, and the fastening nut is arranged between the two fastening retaining rings.

[0016] By adopting the above technical solution, the fastening nut is arranged between the two fastening retaining rings, so that the fastening nut can be restricted between the two fastening retaining rings on the side viewing sleeve, forming a rotational connection of the fastening nut on the side viewing sleeve, and pushing the fastening retaining ring when the fastening nut is tightened on the adapter, so that the side viewing sleeve is pressed on the adapter, thereby restricting the rotation between the side viewing sleeve and the fastening nut and the adapter.

[0017] In a specific feasible implementation scheme, one end of the adapter is provided with a direct-view component connection port, and the other end is provided with a sleeve accommodating groove, the interior of the adapter is provided with a connecting hole that passes through the direct-view component connection port and the sleeve accommodating groove, and the adapter is fixed to the direct-view observation head through the connecting hole, and the end of the side-view sleeve can be accommodated in the sleeve accommodating groove.

[0018] By adopting the above technical solution, the direct-view component connection port provided at one end of the adapter can be used to form a reliable connection with the optical fiber hose or relay system of the direct-view endoscope, thereby forming a reliable connection between the direct-view observation head and the optical fiber hose or relay system. The sleeve receiving groove provided at the other end of the adapter can better define the position of the side-view sleeve end, thereby improving the position stability of the side-view sleeve.

[0019] In a specific possible implementation manner, the side lens is a reflector that is tilted relative to the direct viewing head.

[0020] By adopting the above technical solution, using a reflector that is tilted relative to the direct-viewing head, the illumination light and image light can be conveniently reflected between the side of the end of the side-viewing sleeve and the direct-viewing head. The structure is simple and the illumination and imaging effects are good.

[0021] The side-view endoscope provided in this application adopts the following technical solution:

[0022] A side-view endoscope comprises the direct-view endoscope and the side-view observation head provided in the present application, the direct-view endoscope also comprising an imaging unit and a endoscope pipeline, one end of the direct-view observation head is connected to the endoscope pipeline, the end of the endoscope pipeline is connected to the imaging unit, and the other end of the direct-view observation head is provided with an image acquisition device and a light output device, the image acquisition device is connected to the imaging unit via an image transmission device provided in the direct-view observation head and the endoscope pipeline, and the light output device is connected to the imaging unit via a light transmission device provided in the direct-view observation head and the endoscope pipeline.

[0023] By adopting the above technical solution, the image transmission device and the light transmission device connected between the direct-viewing observation head and the imaging unit can transmit the illumination light emitted by the light source in the imaging unit to the end of the direct-viewing observation head for emission, so as to illuminate the observation environment, and guide the image light in front of the direct-viewing observation head to the imaging unit for imaging and observation of the image in front of the direct-viewing observation head, so that the side image can be observed by guiding the illumination light and the image light through the side-viewing observation head. And by removing the side-viewing observation head, the front image can be observed with the direct-viewing endoscope, and it can be used as a normal direct-viewing endoscope, thereby improving the applicability of the side-viewing endoscope of the present application.

[0024] In a specific possible implementation scheme, the sleeve fastening structure includes an adapter, the direct view observation head passes through the adapter and is fixedly connected to the adapter, and the endoscope pipeline includes a fiber optic hose, which is fixedly connected to one end of the adapter and is fixedly connected to the direct view observation head through the adapter.

[0025] By adopting the above-mentioned technical solution and utilizing an adapter which is respectively fixedly connected to the optical fiber hose and the direct-view observation head, the adapter which serves as a sleeve fastening structure can also serve as a connecting structure between the optical fiber hose and the direct-view observation head, thereby improving the reliability of the connection between the optical fiber hose and the direct-view observation head and simplifying the structure of the side-view endoscope of the present application.

[0026] In a specific possible implementation scheme, the sleeve fastening structure includes an adapter, the direct view observation head passes through the adapter and is fixedly connected to the adapter, the endoscope pipeline includes a relay system and a cable conduit, the relay system is fixedly connected to one end of the adapter, and is fixedly connected to the direct view observation head through the adapter; the image transmission device includes an image transmission optical fiber and an image transmission cable, the light transmission device includes an illumination optical fiber and an illumination cable, the relay system includes an image sensor and an illumination light source, the image transmission optical fiber is connected between the image acquisition device and the image sensor, the illumination optical fiber is connected between the illumination light source and the light output device, and the image transmission cable and the illumination cable are respectively connected between the image sensor and the illumination light source and the imaging unit.

[0027] By adopting the above-mentioned technical scheme and utilizing the structure in which the relay system and the adapter are fixedly connected, a hard connection can be formed between the relay system, the adapter and the direct-view observation head, thereby improving the manipulability of the direct-view observation head and the side-view sleeve installed on the direct-view observation head; the relay system can be utilized to convert image light into image electrical signals for further transmission, thereby improving the image clarity and transmission distance of the side-view endoscope of the present application.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] By utilizing the lateral lens arranged at the end of the side-view sleeve, the illumination light emitted through the end of the direct-view observation head can be guided to the side of the side-view sleeve to illuminate the side environment; and the image light from the side of the side-view sleeve can be guided to the end of the direct-view observation head, and the imaging observation is performed through the direct-view observation head, so that the front image of the pipe wall on the side of the side-view sleeve can be observed, thereby improving the observation effect and convenience of the pipe side wall.

[0030] By utilizing the rotating connection of the side viewing sleeve on the direct viewing observation head, the rotation position of the side viewing sleeve on the direct viewing observation head can be easily adjusted, so that images at different angles around the side viewing sleeve can be observed, and the wall portions at different angles in the pipeline can be observed frontally, thereby conveniently improving the observation range of the side image.

[0031] By utilizing the sleeve fastening structure arranged between the direct-viewing observation head and the side-viewing sleeve, the rotation angle of the side-viewing sleeve on the direct-viewing observation head can be conveniently adjusted, and the side-viewing sleeve can be fixed at any rotation position on the direct-viewing observation head, thereby improving the stability of the observed side image.

[0032] By utilizing the sleeve fastening structure composed of an adapter and a fastening nut, the fastening nut can be unscrewed from the fastener, and the side-view sleeve and the fastening nut can be separated from the direct-view observation head, so that the direct-view observation head can be used to image and observe the front image, thereby realizing the function of a normal indicating endoscope and further improving the applicability of the side-view observation head and the side-view endoscope of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of an embodiment of a side view observation head of the present application.

[0034] Figure 2 This is a top view of an embodiment of the present application when viewed from the side.

[0035] Figure 3 for Figure 2 Sectional view in the middle AA direction.

[0036] Figure 4 It is a schematic diagram of another embodiment of the side-view observation head of the present application.

[0037] Figure 5 This is a top view of another embodiment of the side-view observation head of the present application.

[0038] Figure 6 for Figure 5 Cross-sectional view along the middle BB.

[0039] Figure 7 This is a schematic structural diagram of an embodiment of a side-view endoscope of the present application.

[0040] Figure 8 It is a structural schematic diagram of another embodiment of the side-view endoscope of the present application.

[0041] Explanation of the reference numerals: 1. side-view sleeve; 11. side lens; 12. side window hole; 13. window piece; 14. side-view mirror mounting structure; 15. fastening retaining ring; 2. sleeve fastening structure; 21. adapter; 211. direct-view component connection port; 212. sleeve accommodating groove; 22. fastening nut; 3. direct-view endoscope; 31. direct-view observation head; 311. image acquisition device; 312. light output device; 32. imaging unit; 33. optical fiber hose; 331. image transmission optical fiber; 332. illumination optical fiber; 34. relay system; 341. image sensor; 342. illumination light source; 35. cable duct; 351. image transmission cable; 352. illumination cable. DETAILED DESCRIPTION

[0042] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] An embodiment of the side-viewing head of the present application, such as Figures 1 to 6 As shown, it includes a side-view sleeve 1 and a sleeve fastening structure 2. The side-view observation head of the present application is used to be installed on an existing direct-view endoscope 3, so that the existing direct-view endoscope 3 has a side-viewing function, that is, it is assembled on the existing direct-view endoscope 3 to form a side-view endoscope.

[0045] Specifically, a direct-viewing observation head 31 is provided at the end of the existing direct-viewing endoscope 3, and an image transmitting device and a light transmitting device are provided inside the direct-viewing observation head 31. An image importing device and an illumination light exporting device are provided at the end of the direct-viewing observation head 31. The illumination light transmitted by the light transmitting device is irradiated to the front of the direct-viewing observation head 31 via the illumination light exporting device to illuminate the front environment; the image importing device imports the image light in front of the direct-viewing observation head 31 into the image transmitting device, and transmits it to the imaging device of the direct-viewing endoscope 3 to observe and / or display the image in front of the direct-viewing observation head 31, thereby realizing the function of an ordinary direct-viewing endoscope.

[0046] The side-viewing sleeve 1 is a hard hollow tube, usually a thin-walled metal tube, whose inner diameter is slightly larger than the outer diameter of the direct-viewing head 31. The side-viewing sleeve 1 is sleeved on the outside of the direct-viewing head 31 and can rotate relative to the direct-viewing head 31. A side lens 11 is provided at the end of the side-viewing sleeve 1. The side lens 11 can be a variety of refractive and / or reflective lenses that can transmit light between the end of the direct-viewing head 31 and one side of the side-viewing sleeve 1. Through the side lens 11, the illumination light emitted from the illumination light emitting device at the end of the direct-viewing head 31 and irradiated along the axial direction of the side-viewing sleeve 1 can be guided to one side of the side-viewing sleeve 1 to illuminate the environment on one side of the side-viewing sleeve 1; at the same time, the image light on one side of the side-viewing sleeve 1 can be guided to the image introducing device at the end of the direct-viewing head 31 and transmitted through the image transmission device, so that the side image can be observed and / or displayed through the direct-viewing endoscope 3. Moreover, by adjusting the rotation angle of the side view sleeve 1 on the direct view observation head 31, the side lens 11 can guide the light to different angles on the side of the direct view observation head 31, so as to observe the lateral positions at different angles around the direct view observation head 31, thereby improving the flexibility and convenience of observing the environment at different angles on the side.

[0047] The sleeve fastening structure 2 can be various mechanisms with locking and unlocking functions, such as a nut locking mechanism, an elastic locking mechanism, a wedge locking mechanism or a snap-on locking mechanism, etc. The sleeve fastening structure 2 is arranged between the direct-viewing head 31 and the side-viewing sleeve 1. When the sleeve fastening structure 2 is locked, the side-viewing sleeve 1 can be fixed at any position on the direct-viewing head 31, so that the direct-viewing head 31 can observe a side image at a fixed position; when the sleeve fastening structure 2 is unlocked, the side-viewing sleeve 1 can rotate freely on the direct-viewing head 31, so that the angle of the side image observed by the direct-viewing head 31 can be conveniently adjusted.

[0048] The side-view observation head of the present application can be installed on a direct-view endoscope, so that the direct-view endoscope has a side-viewing function, and can be easily removed from the direct-view endoscope to restore its direct-view endoscope function, greatly expanding the scope of use of the direct-view endoscope.

[0049] In some embodiments of the side-viewing head of the present application, Figures 1 to 3 As shown, the end of the side-viewing sleeve 1 is closed, and a side window hole 12 is provided on the side wall of the side-viewing sleeve 1 adjacent to the closed end, through which light can be transmitted inside and outside the side-viewing sleeve 1. The side lens 11 is provided between the side window hole 12 and the end of the direct-viewing head 31, and the side lens 11 can guide the illumination light emitted from the illumination light emitting device at the end of the direct-viewing head 31 to the side window hole 12, and emit it through the side window hole 12 to illuminate the side of the side-viewing sleeve 1; and can guide the image light emitted from the side of the side-viewing sleeve 1 through the side window hole (12) to the end of the direct-viewing head 31, and enter the side-viewing sleeve 1 through the image introducing device, and transmit it out through the image transmitting device, so as to observe and / or display the image of the side of the side-viewing sleeve 1.

[0050] In some embodiments of the side-viewing head of the present application, Figures 4 to 6As shown, most of the tube wall on one side of the proximal end of the side-viewing sleeve 1 is cut off to form a side-view mirror mounting structure 14 connected to the end of the side-viewing sleeve 1 by a small part of the tube wall on the other side. A side-view mirror mounting structure 14 including a fixing strip connected to one side of the side-viewing sleeve 1 and an end block arranged opposite to the end of the side-viewing sleeve 1 can also be attached to the end of the side-viewing sleeve 1. In this case, the distal end of the fixing strip is fixed to one side of the end block, and the size of the end block is equivalent to the cross-sectional size of the side-viewing sleeve 1. The end of the side-viewing mirror mounting structure 14 protrudes outward and is formed into a spherical crown or a cone to ensure its smooth advancement in a narrow pipe. The side mirror 11 is fixed on the side-viewing mirror mounting structure 14 and is arranged toward the direct-viewing observation head 31, and is used to guide the illumination light emitted by the illumination light emitting device at the end of the direct-viewing observation head 31 to the side of the end of the side-viewing sleeve 1 for illumination; and guide the image light on the side of the side of the side-viewing sleeve 1 to the end of the direct-viewing observation head 31, and enter the side-viewing sleeve 1 through the image introducing device for output.

[0051] In some embodiments of the side-viewing head of the present application, Figures 1 to 6 As shown, the sleeve fastening structure 2 includes an adapter 21 and a fastening nut 22. The adapter 21 is fixed on the direct-viewing head 31, and one end of the outer side thereof is provided with an external thread; the fastening nut 22 is sleeved on the end of the side-viewing sleeve 1, one end of the fastening nut 22 is rotatably connected to the side-viewing sleeve 1, and the other end is provided with a threaded hole, the inner wall of the threaded hole is provided with an internal thread, and is threadedly connected to the external thread on the adapter 21 through the internal thread. When the fastening nut 22 is tightened on the adapter 21, it can drive the end of the side-viewing sleeve 1 rotatably connected to the fastening nut 22 to be pressed against the end of the adapter 21, thereby locking the side-viewing sleeve 1, so that the side-viewing sleeve 1 is in a fixed position on the direct-viewing head 31. When the fastening nut 22 is loosened on the adapter 21, the locking of the side viewing sleeve 1 can be released, so that the side viewing sleeve 1 can be rotated to any desired angle on the direct viewing head 31, so that the side viewing head of the present application can be used to observe the lateral position at any angle.

[0052] In a preferred embodiment of the side-viewing head of the present application, as Figure 3 and Figure 6 As shown, two fastening retaining rings 15 are provided on the outer wall of the end of the side-view sleeve 1, and one end of the fastening nut 22 is sleeved on the side-view sleeve 1 and located between the two fastening retaining rings 15, so that the fastening nut 22 can rotate on the side-view sleeve 1 and can push the fastening retaining ring 15 to make the side-view sleeve 1 move axially, forming a compression lock between the side-view sleeve 1 and the adapter 21.

[0053] As a specific implementation of the side-viewing observation head of the present application, Figure 3As shown, a direct-view component connection port 211 is provided at one end of the adapter 21, and a sleeve receiving groove 212 is provided at the other end. A connection hole penetrating both ends is provided between the direct-view component connection port 211 and the sleeve receiving groove 212 inside the adapter 21, and the adapter 21 is fixed to the end of the direct-view observation head 31 through the connection hole, forming a fixed connection between the adapter 21 and the direct-view observation head 31. When the fastening nut 22 is screwed on the adapter 21, the end of the side-view sleeve 1 and the fastening retaining ring 15 fixed to the end of the side-view sleeve 1 are located in the sleeve receiving groove 212, and are locked in the sleeve receiving groove 212 as the fastening nut 22 is tightened. Through the direct-view component connection port 211, a reliable connection can be formed with the optical fiber hose 33 of the direct-view endoscope 3, and a reliable connection can be formed between the optical fiber hose 33 and the direct-view observation head 31, ensuring the stable operation of the image transmission device and the light transmission device inside the direct-view observation head 31 and the optical fiber hose 33.

[0054] In a preferred embodiment of the side-viewing head of the present application, as Figures 1 to 3 As shown, the side mirror 11 is a reflector that is tilted relative to the direct viewing head 31. The reflector can be a glass reflector with a metal coating or a polished metal reflector. The reflective surface of the reflector intersects the axis of the direct viewing head 31 at an angle of 45°, so that the reflector can reflect light between the axial direction of the side viewing sleeve 1 and the side perpendicular to the axis of the side viewing sleeve 1.

[0055] like Figure 3 , Figure 6 and Figure 7 As shown, an embodiment of the side-view endoscope of the present application includes a direct-view endoscope 3 and a side-view observation head of any embodiment of the present application. The direct-view endoscope 3 is also provided with an imaging unit 32 and a scope pipeline, one end of the direct-view observation head 31 is connected to the scope pipeline, and the other end of the scope pipeline is connected to the imaging unit 32. An image acquisition device 311 and a light output device 312 are provided at the end of the direct-view observation head 31, and an image transmission device and a light transmission device are provided inside the direct-view observation head 31 and the optical fiber hose 33. The image transmission device is connected between the image acquisition device 311 and the imaging unit 32, and is used to transmit the image light and / or image signal acquired by the image acquisition device 311 to the imaging unit 32, and observe or display through the imaging unit 32; the light transmission device is connected between the light output device 312 and the illumination light source provided inside the imaging unit 32, or is connected between the light output device 312 and the illumination light source introduction interface provided on the imaging unit 32, and is used to transmit the illumination light, or the illumination power supply and the illumination light formed by the illumination light, to the light output device 312, and emit it through the light output device 312 to illuminate the external environment.

[0056] The image acquisition device 311 can be any existing optical device capable of introducing external image light into the image transmission optical fiber 331. The image transmission optical fiber 331 is usually provided with multiple pieces, and a high-resolution image can be transmitted through the multiple image transmission optical fibers 331. The imaging unit 32 can be an observation lens capable of observing the image transmitted in the image transmission optical fiber 331, or it can be an electronic device capable of displaying the graphic signal obtained by converting the image transmitted in the image transmission optical fiber 331 through a display screen. The endoscope pipeline can be any flexible and bendable catheter, or it can be provided with auxiliary structures such as conversion structures. The propulsion direction of the direct viewing head 31 can also be changed through the endoscope pipeline, so that the inside of the pipeline at different positions and different curvatures can be observed. Through the sleeve fastening structure 2, the rotation angle of the side-view sleeve 1 on the direct viewing head 31 can be adjusted, so that the positions at different angles to the side of the direct viewing head 31 can be conveniently observed.

[0057] The side-view endoscope of the present application can be inserted into the pipes or cavities of the human body or equipment to observe and inspect the internal conditions of the pipes and cavities, including various structural parts in various industries and types of industrial equipment, such as fuel assemblies in nuclear power plants, inner walls of fuel rod tubes, guide tubes, spring grids, etc.

[0058] In some embodiments of the side-view endoscope of the present application, as Figure 3 As shown, the sleeve fastening structure 2 includes an adapter 21 and a fastening nut 22. One end of the direct-viewing head 31 passes through the central axis of the adapter 21 and is fixedly connected to the adapter 21. A direct-viewing component connection port 211 is provided at the other end of the adapter 21, and the endoscope pipeline includes an optical fiber hose 33. Specifically, the endoscope pipeline can be composed of only the optical fiber hose 33, which is connected between the direct-viewing head 31 and the imaging unit 32; the endoscope pipeline can also be composed of the optical fiber hose 33, the intermediate transition structure and other pipelines, which are interconnected by the optical fiber hose 33, the intermediate transition structure and other pipelines, and connected between the direct-viewing head 31 and the imaging unit 32.

[0059] The optical fiber hose 33 is inserted into the direct-view component connection port 211 and fixedly connected to the adapter 21. The fastening nut 22 is rotatably connected to the side-view sleeve 1. An external thread is provided on the outer side of one end of the adapter 21. The fastening nut 22 is threadedly connected to the adapter 21 through the external thread. The side-view sleeve 1 can be locked and unlocked on the direct-view observation head 31 through the fastening nut 22. In this way, the adapter 21 is not only a component of the sleeve fastening structure 2, but also a fixed connection of the adapter structure between the optical fiber hose 33 and the direct-view observation head 31, which simplifies the structure of the side-view endoscope of the present application. The optical fiber hose 33 and the direct-view observation head 31 can be directly connected, or they can be indirectly connected through the sleeve fastening structure 2.

[0060] In some embodiments of the side-view endoscope of the present application, as Figure 8 As shown, the sleeve fastening structure 2 includes an adapter 21 and a fastening nut 22. One end of the direct viewing head 31 passes through the central axis of the adapter 21 and is fixedly connected to the adapter 21. The other end of the adapter 21 is provided with a direct viewing component connection port 211. The endoscope pipeline includes a relay system 34 and a cable conduit 35.

[0061] The relay system 34 is fixedly connected to the direct-view component connection port 211, and is fixedly connected to the direct-view observation head 31 through the adapter 21. The image transmission device includes an image transmission optical fiber 331 and an image transmission cable 351, and the light transmission device includes an illumination optical fiber 332 and an illumination cable 352. An image sensor 341 and an illumination light source 342 are provided in the relay system 34.

[0062] The image transmission optical fiber 331 passes through the direct-view observation head 31 and enters the relay system 34, and is connected between the image acquisition device 311 and the image sensor 341. The graphic light introduced by the image acquisition device 311 reaches the image sensor 341 after being transmitted by the image transmission optical fiber 331, and is converted into an image electrical signal by the image sensor 341; the image transmission cable 351 is arranged in the cable duct 35, and its two ends enter the relay system 34 and the imaging unit 32 respectively, and are connected between the image sensor 341 and the imaging unit 32. The image transmission cable 351 transmits the image electrical signal converted by the image sensor 341 to the imaging unit 32, and the imaging unit 32 restores it into an image, displays it through a display, and can be recorded and saved at the same time.

[0063] The lighting cable 352 is arranged in the cable duct 35, and its two ends respectively enter the relay system 34 and the imaging unit 32, and are connected between the lighting light source 342 and the imaging unit 32, and are used to transmit the driving current generated by the lighting power supply inside the imaging unit 32 to the lighting light source 342, and drive the lighting power supply 342 to emit lighting light; the lighting optical fiber 332 passes through the relay system 34 and enters the direct-view observation head 31, and is connected between the lighting light source 342 and the light-emitting device 312, and is used to transmit the lighting light emitted by the lighting light source 342 to the light-emitting device 312, and irradiate it out through the light-emitting device 312 to illuminate the surrounding environment.

[0064] In the description of the present application, the description with reference to the terms "one embodiment", "specific embodiment", "preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A side-view observation head, characterized in that: The invention comprises a side-view sleeve (1) and a sleeve fastening structure (2); the side-view sleeve (1) can be sleeved on the outside of a direct-view observation head (31) of a direct-view endoscope (3) and can be rotated on the direct-view observation head (31); a side lens (11) is provided at the end of the side-view sleeve (1); and the sleeve fastening structure (2) is provided between the direct-view observation head (31) and the side-view sleeve (1) so as to lock or unlock the rotational position of the side-view sleeve (1) on the direct-view observation head (31).

2. The side-view observation head according to claim 1, characterized in that: The side wall of the side-view sleeve (1) is provided with a side window (12), and the side lens (11) is arranged between the side window (12) and the direct-viewing observation head (31) so as to be able to guide the illumination light emitted by the direct-viewing observation head (31) to be emitted through the side window (12), and to be able to guide the image light from the side window (12) to the direct-viewing observation head (31).

3. The side-view observation head according to claim 1, characterized in that: A side-view mirror mounting structure (14) is formed at the end of the side-view sleeve (1), and the side-view lens (11) is arranged on the side-view mirror mounting structure (14) and is arranged toward the direct-view observation head (31).

4. The side-view observation head according to any one of claims 1 to 3, characterized in that: The sleeve fastening structure (2) comprises an adapter (21) and a fastening nut (22); the adapter (21) is fixed on the direct-viewing observation head (31); the fastening nut (22) is rotatably connected to the side-view sleeve (1) and is threadedly connected to the adapter (21).

5. The side viewing head according to claim 4, characterized in that: Two fastening retaining rings (15) are arranged on the outer wall of the end of the side-view sleeve (1), and the fastening nut (22) is arranged between the two fastening retaining rings (15).

6. The side-view observation head according to claim 4, characterized in that: One end of the adapter (21) is provided with a direct-view component connection port (211), and the other end is provided with a sleeve receiving groove (212); a connection hole penetrating the direct-view component connection port (211) and the sleeve receiving groove (212) is provided inside the adapter (21), and the adapter (21) is fixed to the direct-view observation head (31) through the connection hole, and an end of the side-view sleeve (1) can be received in the sleeve receiving groove (212).

7. The side viewing head according to any one of claims 1 to 3, characterized in that: The side mirror (11) is a reflector that is arranged tilted relative to the direct-viewing observation head (31).

8. A side-view endoscope, characterized in that: The invention comprises the direct-view endoscope (3) and the side-view observation head according to any one of claims 1 to 7, wherein the direct-view endoscope (3) further comprises an imaging unit (32) and a side-view endoscope pipeline, wherein one end of the direct-view observation head (31) is connected to the side-view endoscope pipeline, and the side-view endoscope pipeline is connected to the imaging unit (32), and an image acquisition device (311) and a light output device (312) are provided at the end of the other end of the direct-view observation head (31), wherein the image acquisition device (311) is connected to the imaging unit (32) via an image transmission device provided in the direct-view observation head (31) and the side-view endoscope pipeline, and the light output device (312) is connected to the imaging unit (32) via a light transmission device provided in the direct-view observation head (31) and the side-view endoscope pipeline.

9. The side-view endoscope according to claim 8, characterized in that: The sleeve fastening structure (2) comprises an adapter (21), the direct-viewing observation head (31) passes through the adapter (21) and is fixedly connected to the adapter (21), and the endoscope pipeline comprises an optical fiber hose (33), the optical fiber hose (33) is fixedly connected to one end of the adapter (21), and is fixedly connected to the direct-viewing observation head (31) via the adapter (21).

10. The side-view endoscope according to claim 8, characterized in that: The sleeve fastening structure (2) comprises an adapter (21), the direct-viewing observation head (31) passes through the adapter (21) and is fixedly connected to the adapter (21), the endoscope pipeline comprises a relay system (34) and a cable conduit (35), the relay system (34) is fixedly connected to one end of the adapter (21) and is fixedly connected to the direct-viewing observation head (31) through the adapter (21); the image transmission device comprises an image transmission optical fiber (331) and an image transmission cable (351), and the light transmission device comprises an illumination optical fiber (332) and a light transmission cable (351). The relay system (34) comprises an image sensor (341) and an illumination light source (342); the image transmission optical fiber (331) is connected between the image acquisition device (311) and the image sensor (341); the illumination optical fiber (332) is connected between the illumination light source (342) and the light emitting device (312); the image transmission cable (351) and the illumination cable (352) are respectively connected between the image sensor (341) and the illumination light source (342) and the imaging unit (32).

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