Multi-light-path fixing device and endoscope

Abstract

The utility model relates to the technical field of endoscope equipment, and discloses a multi-light-path fixing device and an endoscope, the multi-light-path fixing device comprises a box shell, the box shell is constructed to be of an integrated frame structure, the box shell comprises a surrounding wall arranged in a circumferential surrounding mode and a bottom wall connected to the relative lower portion of the surrounding wall; a plurality of mounting notches are formed in the enclosure bulkhead, and the mounting notches are used for mounting the convergence interface module and at least one lamp bank module; a light combining sheet mounting position is formed on the bottom wall and is used for mounting a light combining sheet. According to the multi-light-path fixing device, the box shell is of the integrated frame structure, the box shell can form a whole, the structure is more stable, the multiple installation notches are formed in the surrounding wall of the box shell and used for installing the convergence interface module and the at least one lamp set module, and therefore the light-path fixing device is more convenient to use. Therefore, integral assembly can be formed by means of the box shell after assembly, a single-module fixing mode is replaced, the coaxial overlap ratio of multiple light spots can be improved, and the lighting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscope equipment, in particular to a multi-light path fixing device and an endoscope. Background Art

[0002] Endoscope cold light sources usually include light sources composed of R, G, B, and UV lamps. A multi-light path light source structure is composed of a series of optical components such as light combiners, collimating lenses, and converging lens groups. At the same time, according to usage needs, optical components of other bands such as narrow band are also equipped.

[0003] To ensure the effectiveness of endoscopes, it is necessary to ensure the accuracy of the paths of the multi-path light source and the overlap of the multiple light spots. However, the fixing method of the multi-path light source structure in related technologies has many parts, a complex structure, and many factors affecting dimensional tolerance control, which requires adjustment of the light spot, makes assembly cumbersome and inefficient, and is prone to large deviations in light spot overlap, light leakage, and dust absorption, resulting in poor light efficiency and other adverse effects. Utility Model Content

[0004] In view of this, the present invention provides a multi-light path fixing device and an endoscope to solve the problem that the multi-light path light source structure has a large deviation in light spot overlap due to the numerous fixing structure parts.

[0005] In a first aspect, the present invention provides a multi-light path fixing device, comprising:

[0006] The box shell is constructed as an integrated frame structure, and the box shell includes a surrounding wall arranged circumferentially and a bottom wall connected to the lower side of the surrounding wall;

[0007] The surrounding wall is provided with a plurality of installation slots for installing the convergence interface module and at least one light group module;

[0008] The bottom wall is formed with a light combining plate installation position, which is used to install the light combining plate.

[0009] Beneficial effects: The multi-light path fixing device provided by the embodiment of the present invention constructs the box shell into an integrated frame structure, which can make the box shell form an integral body and a more stable structure. A plurality of mounting slots are provided on the surrounding wall of the box shell. The mounting slots are used to install the convergence interface module and at least one light group module. Thus, after assembly, the convergence interface module and at least one light group module can form an integral assembly with the help of the box shell, replacing the fixing method of a single module, which is beneficial to improving the coaxial overlap of multiple light spots and improving the light efficiency. Constructing the box shell into an integrated frame structure can replace the fixing method of a single module, reduce the number of parts, reduce the complexity of the structure, and at the same time help to ensure the control of dimensional tolerances. The assembly efficiency of the convergence interface module and the light group module is improved, and there is no need to adjust the light spot after assembly, which improves the assembly efficiency.

[0010] In some embodiments, an opening is formed on the top of the box shell, and the multi-light path fixture further includes a cover plate, which is arranged to cover the opening of the box shell.

[0011] Beneficial Effects: The opening formed at the top of the housing facilitates the installation of the internal light combiner. A cover is provided at the opening of the housing to seal the opening of the housing, thereby improving the sealing of the housing, preventing light leakage from the multi-optical fixture, and reducing the problem of serious dust absorption on the lenses, which is beneficial to maintenance.

[0012] In some embodiments, the multi-light path fixture further includes: a base connecting plate, which is disposed relatively below the box shell, and the box shell is mounted on the base connecting plate.

[0013] Beneficial effects: Installing the box shell on the base connecting plate can ensure the structural stability of the box shell and facilitate the fixation of the box shell to the external structure. The independent dark box fixing device composed of the cover plate, the base connecting plate and the box shell can be assembled independently, thereby improving assembly efficiency, improving the sealing of the box shell, avoiding light leakage in the multi-light path fixing device, and reducing the serious problem of lens dust absorption.

[0014] In some embodiments, one of the installation slots of the surrounding wall is used to install the convergence interface module, and the installation slot is defined as a convergence limit slot. The circumferential edge of the convergence limit slot is provided with a module fixing hole, and the installation hole of the convergence interface module and the module fixing hole are installed via a fixing part.

[0015] In some embodiments, at least one of the mounting slots of the surrounding wall is used to mount the lamp assembly module, and a fixed lamp hole is provided at the circumferential edge of the corresponding mounting slot. The mounting hole of the lamp assembly module and the fixed lamp hole are mounted via a fixing member.

[0016] In some embodiments, a box shell top fixing hole is opened on the top of the surrounding wall, and a cover plate fixing hole is opened on the cover plate corresponding to the box shell top fixing hole. The box shell top fixing hole and the cover plate fixing hole are aligned and installed via fixing parts to connect the box shell and the cover plate.

[0017] In some embodiments, the bottom wall is provided with a box shell bottom fixing hole, and the base connecting plate is provided with a base fixing hole corresponding to the box shell bottom fixing hole. The box shell bottom fixing hole is aligned with the base fixing hole and is installed via a fixing piece to connect the box shell and the base connecting plate.

[0018] In some embodiments, the light assembly module includes at least one of a green light module, a red light module, a blue light module, and an ultraviolet light module, and at least one of the green light module, the red light module, the blue light module, and the ultraviolet light module is installed in the box shell.

[0019] In some embodiments, the multi-light path fixing device further includes: a narrowband motor module for screening narrowband light of a target band, the narrowband motor module including a motor and a narrowband light combiner, and the narrowband motor module is fixed to the surrounding wall.

[0020] Beneficial effect: The narrowband motor module is fixed to the surrounding wall, and an integral assembly is formed with the help of the box shell, replacing the fixing method of a single module, which is beneficial to improving the coaxial overlap of multiple light spots, ensuring the accuracy of the optical path, and improving the light efficiency.

[0021] In a second aspect, the present invention further provides an endoscope comprising the multi-light path fixing device as described above.

[0022] Because the endoscope includes a multi-light path fixing device, it has the same effect as the multi-light path fixing device and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the assembly of the multi-light path fixing device and the light group module of the utility model;

[0025] Figure 2 This is a schematic diagram of the multi-light path fixing device of the utility model with the cover removed;

[0026] Figure 3 This is an exploded schematic diagram of the multi-light path fixing device and the light assembly module of the utility model;

[0027] Figure 4 This is an exploded schematic diagram of the multi-light path fixing device of the utility model;

[0028] Figure 5 This is a top view of the endoscope of the present invention;

[0029] Figure 6 for Figure 5 Schematic cross-section of the endoscope under viewing angle;

[0030] Figure 7 It is a cross-sectional schematic diagram of the multi-light path fixing device and the red light module of the utility model.

[0031] Description of reference numerals:

[0032] 1. Cover plate; 11. Cover plate fixing hole; 2. Base connecting plate; 21. Base fixing hole;

[0033] 3. Box shell; 301. Enclosure wall; 302. Bottom wall; 31. Converging limit slot; 311. Module fixing hole; 32. Green light limit slot; 33. Red light limit slot; 34. Blue light limit slot; 35. UV lamp limit slot; 351. Fixing hole for lamp; 36. Box shell top fixing hole; 37. Box shell bottom fixing hole;

[0034] 4. Converging interface module; 41. Converging light outlet; 42. Converging lens group; 43. Converging heat sink;

[0035] 6. Narrowband motor module; 61. Motor; 62. Narrowband light combiner;

[0036] 5. Green light module; 51. Green light lens; 52. Blue-green light combining piece; 53. Green light radiator;

[0037] 7. Red light module; 71. Red light lens; 72. Green and red light combining piece; 73. Red light radiator;

[0038] 8. Blue light module; 81. Blue light lens; 82. Blue-purple light combining piece; 83. Blue light radiator;

[0039] 9. UV lamp module; 91. UV radiator. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] In the related art, the convergence interface module 4, green light module 5, narrowband motor module 6, red light module 7, blue light module 8, and ultraviolet light module 9 are all independent modules, each of which needs to be assembled to the same base plate using screws. Each module has many parts and large assembly clearances and tolerances, which can easily cause large deviations in the converged light spot. The embodiments of the present utility model, by rationally designing the structure of the multi-light path fixture, can reduce the number of parts while reducing the deviation of the light spot overlap, thereby improving assembly efficiency and ensuring high light efficiency.

[0045] The following combination Figures 1 to 7 , describing the embodiments of the present utility model.

[0046] According to an embodiment of the present invention, on the one hand, a multi-light path fixing device is provided, comprising:

[0047] The box shell 3 is constructed as an integrated frame structure, and includes a circumferentially arranged surrounding wall 301 and a bottom wall 302 connected to the relatively lower side of the surrounding wall 301;

[0048] The surrounding wall 301 is provided with a plurality of installation slots for installing the convergence interface module 4 and at least one light group module;

[0049] The bottom wall 302 is formed with a light combining plate installation position, which is used to install a light combining plate.

[0050] The multi-light path fixing device provided by the embodiment of the present invention constructs the box shell 3 into an integrated frame structure, which can make the box shell 3 form a whole and the structure more stable. A plurality of installation slots are opened on the surrounding wall 301 of the box shell 3, and the installation slots are used to install the convergence interface module 4 and at least one lamp group module, so that the convergence interface module 4 and at least one lamp group module can form an integral assembly with the help of the box shell 3 after assembly, replacing the fixing method of a single module, which is beneficial to improving the coaxial overlap of multiple light spots and improving the lighting efficiency.

[0051] Furthermore, by reasonably setting the angle and position of the installation slot opened in the surrounding wall 301 and providing a positioning structure near the installation slot, it is possible to ensure that the convergence interface module 4 and the light group module do not need to be repeatedly adjusted after assembly, thereby ensuring the accuracy of the optical path and improving the coaxial overlap of multiple light spots.

[0052] The bottom wall 302 is formed with a light combining plate installation position, which is used to install light combining plates. The light combining plates can specifically include a blue-green light combining plate 52, a green-red light combining plate 72, a blue-purple light combining plate 82 and a narrow-band light combining plate 62. Fixing each light combining plate at a preset position on the bottom wall 302 can ensure the accuracy of the installation position of each light combining plate, improve the matching accuracy with the collimating lens of each lamp group module, and help to improve the coaxial overlap of multiple light spots.

[0053] The multi-optical path fixture provided by the present invention utilizes a housing 3 constructed as an integrated frame structure, replacing a single-module fixture. This reduces the number of parts and structural complexity, while also facilitating dimensional tolerance control. This improves assembly efficiency for the convergence interface module 4 and the light assembly module, and eliminates the need for spot adjustment after assembly, further enhancing assembly efficiency.

[0054] The multi-light path fixing device provided by the embodiment of the present invention has a box shell 3 constituting an independent box structure, and the independent box structure is used to fix the convergence interface module 4 and the light group module, which can be easily assembled independently, thereby realizing the modular assembly of the multi-light path fixing device. Moreover, after the fixed convergence interface module 4 and the light group module are independently assembled with the box shell 3, the structure is more stable, thereby improving the light spot convergence overlap and the light effect, and improving the assembly efficiency.

[0055] In some embodiments, combined Figure 4 As shown, the surrounding wall 301 and the bottom wall 302 of the box shell 3 are formed in one piece.

[0056] In this embodiment, the surrounding wall 301 and the bottom wall 302 are integrally formed, which can ensure the forming accuracy of the box shell 3 and improve product consistency.

[0057] In some embodiments, combined Figure 4 As shown, an opening is formed on the top of the box shell 3 , and the multi-light path fixing device further includes a cover plate 1 , which is arranged to cover the opening of the box shell 3 .

[0058] This embodiment forms an opening at the top of the housing 3 to facilitate the installation of the internal light combiner. This embodiment provides a cover plate 1 that covers the opening of the housing 3, allowing the cover plate 1 to seal the opening of the housing 3, thereby improving the sealing of the housing 3, preventing light leakage from the multi-optical fixture, and reducing the problem of severe dust accumulation on the lenses, which is beneficial for maintenance.

[0059] In some embodiments, combined Figure 4As shown, the multi-light path fixing device further includes: a base connecting plate 2 , which is arranged relatively below the box shell 3 , and the box shell 3 is installed on the base connecting plate 2 .

[0060] In this embodiment, the box shell 3 is installed on the base connecting plate 2, which can ensure the structural stability of the box shell 3 and facilitate the fixation of the box shell 3 to the external structure. The independent dark box fixing device composed of the cover plate 1, the base connecting plate 2, and the box shell 3 can be assembled independently, thereby improving the assembly efficiency, improving the sealing of the box shell 3, avoiding light leakage in the multi-light path fixing device, and reducing the serious problem of dust absorption by the lens.

[0061] In some embodiments, combined Figure 3 、 Figure 4 As shown, one of the installation slots of the surrounding wall 301 is used to install the convergence interface module 4, which is defined as a convergence limit slot 31. The circumferential edge of the convergence limit slot 31 is provided with a module fixing hole 311, and the installation hole of the convergence interface module 4 and the module fixing hole 311 are installed via fixing parts.

[0062] A convergence limit groove 31 is provided on the surrounding wall 301, and the convergence limit groove 31 is used to install the convergence interface module 4. A module fixing hole 311 is provided on the circumferential edge of the convergence limit groove 31. In this embodiment, the corresponding installation hole position on the convergence interface module 4 is aligned with the module fixing hole 311, which can ensure the installation accuracy of the convergence interface module 4 and is conducive to improving the coaxial overlap of multiple light spots.

[0063] Combine Figure 6 As shown, the convergence interface module 4 includes a convergence light outlet 41 , a convergence lens group 42 and a convergence heat sink 43 .

[0064] In some embodiments, combined Figure 3 、 Figure 5 As shown, at least one of the mounting slots of the surrounding wall 301 is used to mount the lamp module, and a lamp fixing hole 351 is opened at the circumferential edge of the corresponding mounting slot. The mounting hole of the lamp module and the lamp fixing hole 351 are mounted via a fixing piece.

[0065] In this embodiment, the light assembly module includes at least one of a green light module 5 , a red light module 7 , a blue light module 8 and an ultraviolet light module 9 , and at least one of the green light module 5 , the red light module 7 , the blue light module 8 and the ultraviolet light module 9 is installed on the box shell 3 .

[0066] Correspondingly, a green light limiting groove 32 is provided on the surrounding wall 301 for correspondingly assembling the green light module 5; a red light limiting groove 33 is also provided on the surrounding wall 301 for correspondingly assembling the red light module 7; a blue light limiting groove 34 is also provided on the surrounding wall 301 for correspondingly assembling the blue light module 8; an ultraviolet lamp limiting groove 35 is also provided on the surrounding wall 301 for correspondingly assembling the ultraviolet lamp module 9.

[0067] In this embodiment, the corresponding mounting hole position on each lamp group module is aligned with the fixed lamp hole 351, which can ensure the installation accuracy of each lamp group module and is conducive to improving the coaxial overlap of multiple light spots.

[0068] Combine Figure 6 As shown, the green light module 5 includes a green light lens 51, a blue-green light combining piece 52 and a green light radiator 53; the red light module 7 includes a red light lens 71, a green-red light combining piece 72 and a red light radiator 73; the blue light module 8 includes a blue light lens 81, a blue-purple light combining piece 82 and a blue light radiator 83; the ultraviolet light module 9 includes an ultraviolet radiator 91.

[0069] In this embodiment, the converging light outlet 41 is used to provide a light source, and each collimating lens and light combining piece converges the light spot to the converging lens group 42 so that the light path can be transmitted to the subsequent structural components. The multi-light path fixing device provided by the embodiment of the utility model strictly controls the position of each collimating lens and light combining piece to unify the center of the same light spot. First, the converging lens group 42 is placed on the converging light outlet 41 to ensure coaxiality, and the mounting notches of the housing 3 are ensured to be at the same height. The center position is ensured to ensure the overlap of the light spots of each lens group.

[0070] In some embodiments, combined Figure 4 As shown, a box shell top fixing hole 36 is opened on the top of the surrounding wall 301, and a cover plate fixing hole 11 is opened on the cover plate 1 corresponding to the box shell top fixing hole 36. The box shell top fixing hole 36 is aligned with the cover plate fixing hole 11 and is installed via a fixing piece to connect the box shell 3 and the cover plate 1.

[0071] In some embodiments, combined Figure 4 As shown, the bottom wall 302 is provided with a box shell bottom fixing hole 37, and the base connecting plate 2 is provided with a base fixing hole 21 corresponding to the box shell bottom fixing hole 37. The box shell bottom fixing hole 37 is aligned with the base fixing hole 21 and is installed via a fixing piece to connect the box shell 3 to the base connecting plate 2.

[0072] In some embodiments, the multi-optical path fixture further includes a narrowband motor module 6 for filtering narrowband light of a target wavelength. The narrowband motor module 6 includes a motor 61 and a narrowband light combiner 62. The narrowband motor module 6 is fixed to the surrounding wall 301. In this embodiment, the narrowband motor module 6 can be used to filter light of a specific wavelength. For example, it can filter out most of the light in a broad spectrum and retain only the narrowband light of 415 nm and 540 nm.

[0073] In this embodiment, the narrowband motor module 6 is fixed to the surrounding wall 301, and the box shell 3 is used to form an integral assembly, replacing the fixing method of a single module, which is beneficial to improving the coaxial overlap of multiple light spots, ensuring the accuracy of the optical path, and improving the light efficiency.

[0074] According to an embodiment of the present invention, on the other hand, an endoscope is provided, comprising the multi-light path fixing device as described above.

[0075] Obviously, the above embodiments are merely examples for the purpose of clarity of explanation and are not intended to limit the implementation methods. Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A multi-light path fixing device, characterized in that: include: The box shell (3) is constructed as an integrated frame structure, and the box shell (3) includes a surrounding wall (301) arranged circumferentially and a bottom wall (302) connected to the lower side of the surrounding wall (301); The surrounding wall (301) is provided with a plurality of installation slots, and the installation slots are used to install a convergence interface module (4) and at least one light group module; The bottom wall (302) is formed with a light combining plate installation position, and the light combining plate installation position is used for installing the light combining plate.

2. The multi-optical path fixing device according to claim 1, characterized in that: An opening is formed at the top of the box shell (3), and the multi-light path fixing device further comprises a cover plate (1), and the cover plate (1) is arranged to cover the opening of the box shell (3).

3. The multi-light path fixing device according to claim 1, characterized in that: The multi-light path fixing device further comprises: a base connecting plate (2) arranged relatively below the box shell (3); the box shell (3) is mounted on the base connecting plate (2).

4. The multi-light path fixing device according to any one of claims 1 to 3, characterized in that: One of the mounting notches of the surrounding wall (301) is used to mount a convergence interface module (4), and the mounting notch is defined as a convergence limit slot (31). A module fixing hole (311) is provided on the circumferential edge of the convergence limit slot (31), and the mounting hole of the convergence interface module (4) and the module fixing hole (311) are mounted via a fixing piece.

5. The multi-light path fixing device according to any one of claims 1 to 3, characterized in that: At least one of the mounting notches of the surrounding wall (301) is used to mount a lamp assembly module, and a lamp fixing hole (351) is provided at a circumferential edge corresponding to the mounting notch. The mounting hole of the lamp assembly module and the lamp fixing hole (351) are mounted via a fixing member.

6. The multi-light path fixing device according to claim 2, characterized in that: A box shell top fixing hole (36) is provided on the top of the surrounding wall (301), and a cover plate fixing hole (11) is provided on the cover plate (1) corresponding to the box shell top fixing hole (36). The box shell top fixing hole (36) is aligned with the cover plate fixing hole (11) and is installed via a fixing member so that the box shell (3) is connected to the cover plate (1).

7. The multi-light path fixing device according to claim 3, characterized in that: The bottom wall (302) is provided with a box shell bottom fixing hole (37), and the base connecting plate (2) is provided with a base fixing hole (21) corresponding to the box shell bottom fixing hole (37). The box shell bottom fixing hole (37) is aligned with the base fixing hole (21) and is installed via a fixing member, so that the box shell (3) is connected to the base connecting plate (2).

8. The multi-light path fixing device according to any one of claims 1 to 3, characterized in that: The light assembly module comprises at least one of a green light module (5), a red light module (7), a blue light module (8) and an ultraviolet light module (9); and at least one of the green light module (5), the red light module (7), the blue light module (8) and the ultraviolet light module (9) is installed on the box shell (3).

9. The multi-light path fixing device according to any one of claims 1 to 3, characterized in that: The multi-light path fixing device further comprises: a narrowband motor module (6) for screening narrowband light of a target wavelength band, the narrowband motor module (6) comprising a motor (61) and a narrowband light combining plate (62), and the narrowband motor module (6) is fixed to the surrounding wall (301).

10. An endoscope, characterized in that: It comprises the multi-optical path fixing device as described in any one of claims 1 to 9.

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