Endoscope objective centering device

Abstract

This application discloses an endoscope objective lens centering device, relating to the technical field of endoscope equipment. It includes a mounting stage with a slidingly connected objective lens base. One end of the objective lens base has an inclined surface, and the other end has a sliding groove. The inclined surface has a first fixing groove, the central axis of which is perpendicular to the plane of the inclined surface. The objective lens base has a second fixing groove connecting the first fixing groove and the sliding groove. The mounting stage is equipped with a limiting component for restricting the sliding of the objective lens base, a light-emitting component for emitting light, and a detection component for receiving and detecting whether the light is deviated. This application solves the problem of reduced endoscope installation efficiency, offering high efficiency and convenience. It eliminates the need for multiple disassemblies and reassemblies of the endoscope, and its operation is simple and convenient, thus improving the installation efficiency of the endoscope.

Description

Technical Field

[0001] This application relates to the technical field of endoscopic equipment, and in particular to an endoscopic objective lens centering device. Background Technology

[0002] Rigid endoscopes are endoscopes with a rigid design. They consist of numerous optical components and are commonly used for medical diagnosis and treatment. The optical system of a rigid endoscope is a coaxial optical system, meaning that theoretically all optical components within the endoscope must be coaxial.

[0003] A non-zero-degree rigid endoscope refers to a rigid endoscope whose working angle is not zero degrees, but rather has a certain angle. Non-zero-degree rigid endoscopes offer a different viewing angle than zero-degree rigid endoscopes, providing a more comprehensive field of view and facilitating better observation of specific areas inside the body. The internal optical components of a non-zero-degree rigid endoscope mainly consist of a first objective lens, a first prism, and a second objective lens. The prism deflects light to achieve a specific viewing angle. The coaxiality of the optical components in a non-zero-degree rigid endoscope means that light entering the second objective lens at an angle parallel to its central axis, being reflected by the first prism, and then exiting the first objective lens at an angle parallel to its central axis.

[0004] Currently, the coaxial adjustment of the internal optical components of non-zero-degree rigid endoscopes is mainly done manually. This involves assembly workers first gluing and installing the first objective lens, first prism, and second objective lens based on their experience. Then, the endoscope with its internal structure assembled is used for observation; the clarity of the image is checked visually. If the image is unclear, the internal optical components need to be disassembled, reassembled, and then reinstalled until a clear image is obtained. This coaxial adjustment method heavily relies on the assembly worker's experience, requiring multiple disassemblies and reassemblies of the endoscope, which is time-consuming and labor-intensive, reducing the efficiency of endoscope installation. Therefore, it needs improvement. Summary of the Invention

[0005] The purpose of this application is to provide an endoscope objective lens centering device to solve the problem of reduced endoscope installation efficiency.

[0006] The endoscope objective lens centering device provided in this application adopts the following technical solution: An endoscope objective lens centering device includes a mounting stage, on which an integrated object prism seat is slidably connected. One end of the integrated object prism seat has an inclined surface and the other end has a sliding groove. The inclined surface has a first fixing groove, the central axis of which is perpendicular to the plane of the inclined surface. The integrated object prism seat has a second fixing groove connecting the first fixing groove and the sliding groove. The mounting stage is provided with a limiting component for restricting the sliding of the integrated object prism seat, a light-emitting component for emitting light, and a detection component for receiving and detecting whether the light is deviated.

[0007] By adopting the above technical solution, when the device is used to make coaxial adjustment of the optical components inside the endoscope, the second objective lens is installed in the first fixed groove and the first prism is installed in the second fixed groove. The second objective lens and the first prism are fixed in the corresponding positions with glue. That is, after the light enters from the central axis of the second objective lens, it can be reflected by the first prism and enter the sliding groove. The cross section of the first fixed groove is parallel to the cross section of the second objective lens.

[0008] The object prism is then fixed to its corresponding position on the mounting platform using a limiting assembly. The cross-section of the sliding groove is larger than the cross-section of the first objective lens. UV adhesive is placed inside the sliding groove, and the first objective lens is slidably connected within it. The light-emitting component then emits light, directing it into the first fixing groove at an angle perpendicular to the plane of the inclined surface of the object prism. The central axis of the first fixing groove is perpendicular to the plane of the inclined surface, and the cross-section of the first fixing groove is parallel to the cross-section of the second objective lens. Therefore, the light rays travel at an angle parallel to the central axis of the second objective lens. The light enters the second objective lens at an angle, then is reflected by the first prism and enters the first objective lens, finally exiting onto the detection component. The detection component detects whether the light has deviated, i.e. whether it has entered along the prescribed path. The prescribed path refers to whether it enters at an angle parallel to the central axis of the first objective lens. If the light path deviates, the first objective lens slides within the sliding groove until the light enters along the prescribed path. If the light has not deviated, the optical components are coaxial, thereby achieving coaxial adjustment of the optical components within the integrated object-prism mount.

[0009] After achieving coaxial adjustment of the optical components within the integrated object prism mount, an ultraviolet lamp is used to irradiate the ultraviolet adhesive in the sliding groove, thereby fixing the first objective lens. This completes the installation and fixing of the optical components within the integrated object prism mount. The integrated object prism mount is then installed inside the endoscope, and it can then be used, thus achieving coaxial adjustment of the optical components within the endoscope.

[0010] This application employs an integrated object prism base and a sliding connection between the first objective lens and the sliding groove. The light-emitting component and the detection component work together to detect whether the optical components are coaxial. The integrated object prism base eliminates the need to place the optical components inside the endoscope for support, allowing adjustment of the optical components before installation. This enables the coaxial adjustment of the optical components within the endoscope by adjusting the position of the first objective lens, eliminating the need for multiple disassemblies and reassemblies of the endoscope. The operation is simple and convenient, improving the installation efficiency of the endoscope.

[0011] Meanwhile, the tilt angle of the inclined surface is set according to the viewing angle of the endoscope. The central axis of the first fixing groove is perpendicular to the plane where the inclined surface is located, which facilitates the installation of the second objective lens and allows light to enter the second objective lens at an angle parallel to the central axis of the second objective lens, thus improving the ease of installation of the device.

[0012] Optionally, the mounting platform is slidably connected to a mounting block, the mounting block is provided with a mounting groove corresponding to the light-emitting component, the object prism is slidably connected to the mounting groove, the mounting block is provided with a sliding block, the sliding block is provided with a reflective groove corresponding to the mounting groove and a reflective component for changing the light illumination angle, and the mounting platform is provided with a clamping member for limiting the sliding of the mounting block.

[0013] By adopting the above technical solution, when it is necessary to adjust the optical components on the object prism integrated base, the object prism integrated base is placed in the mounting slot, and the sliding of the object prism integrated base is restricted by the limiting component. Then, the mounting block with the object prism integrated base is installed on the mounting table, and the sliding of the mounting block is restricted by the clamping component to fix it.

[0014] The light-emitting component then emits light, which enters the reflective component through the reflective groove. The reflective component reflects the light multiple times, causing the light to enter the second objective lens perpendicularly. This allows for coaxial adjustment of the optical components of the endoscope at different viewing angles simply by changing the angle of the incident light through reflection, without needing to adjust the emission angle or position of the light-emitting component. This makes the mounting stage suitable for coaxial adjustment of the optical components inside the endoscope at different viewing angles, improving the practicality of the mounting stage.

[0015] Optionally, the circumferential sidewall of the mounting block is provided with a plug-in groove communicating with the mounting slot, the plug-in groove cooperating with the sliding block, and the reflective component includes a second prism disposed on the sliding block and corresponding to the reflective groove.

[0016] By adopting the above technical solution, when it is necessary to change the angle of light through the reflective component, the light emitted by the light-emitting component enters the second prism through the reflective groove. Since the second prism is polygonal, the light is continuously reflected in the second prism until it can enter the second objective lens perpendicularly and then exit from the second prism. This achieves the goal of making the light emitted by the light-emitting component enter the second objective lens perpendicularly, and then the first objective lens can be adjusted and the light can be detected.

[0017] The insertion slot and the sliding block are inserted and engaged. The second prism is mounted on the sliding block, so the second prism is detachable. When it is necessary to make coaxial adjustment of endoscopes with different viewing angles, simply install the second prism, which allows light to enter the second objective lens perpendicularly, onto the sliding block, and then engage the sliding block with the insertion slot. That is, by replacing the sliding block with different sizes of second prisms, coaxial adjustment of endoscopes with different viewing angles can be achieved, making the device suitable for endoscopes of different sizes and improving the practicality of the device.

[0018] Optionally, the limiting component includes a placement groove disposed on the circumferential sidewall of the mounting block and a baffle disposed on the mounting block and cooperating with the placement groove. The placement groove is connected to the mounting groove, and the baffle is provided with a light-transmitting groove corresponding to the first fixing groove.

[0019] By adopting the above technical solution, when it is necessary to restrict the sliding of the object prism integrated seat, it is only necessary to insert the baffle into the placement groove. The side of the baffle close to the object prism integrated seat is in contact with the inclined surface. The baffle supports the object prism integrated seat and restricts its sliding in the mounting groove. The baffle has a light-transmitting groove corresponding to the first fixing groove. Therefore, the first baffle will not obstruct the light from entering. When the light needs to enter the second objective lens in the first fixing groove, the light can enter through the light-transmitting groove.

[0020] The baffle and the placement slot are inserted into each other, which restricts the sliding of the integrated base without affecting the use of the device. The operation is simple and convenient, and it is easy to replace and disassemble the baffle, thus improving the ease of use of the device.

[0021] Optionally, the wall of the placement slot is provided with a rotating groove, the baffle is rotatably connected to the rotating groove, and a driving component for driving the baffle to rotate is provided in the rotating groove.

[0022] By adopting the above technical solution, the tilt angle of the inclined surface is set according to the viewing angle of the endoscope. The drive component drives the baffle to rotate in the rotating groove, so that the angle of the side of the baffle close to the object prism is adjustable. When it is necessary to support the object prism, the baffle is rotated so that the side of the baffle close to the object prism is parallel to the inclined surface of the object prism. This allows the baffle to fit with the inclined surface of different prisms by rotating, thereby better supporting the object prism and restricting its slippage, and improving the stability of the device.

[0023] Optionally, the mounting block is provided with a receiving groove and a connecting groove connecting the receiving groove and the rotating groove. The driving assembly includes a rotating shaft disposed on the baffle, a first worm gear axially disposed on the rotating shaft, and a first worm meshing with the first worm gear. The rotating shaft is rotatably connected in the connecting groove, and the first worm gear and the first worm are both rotatably connected in the receiving groove. The mounting block is provided with a driving member for driving the first worm to rotate.

[0024] By adopting the above technical solution, when the drive component needs to drive the baffle to rotate in the rotating groove, the drive component drives the first worm to rotate. The first worm meshes with the first worm wheel, and the first worm wheel is axially fixedly connected to the rotating shaft, so that the rotating shaft rotates. The rotating shaft is installed on the baffle, thereby realizing the rotation of the baffle in the rotating groove. When the baffle rotates to a suitable angle, the drive component stops driving the first worm to rotate, thereby fixing the position of the baffle.

[0025] The baffle is rotated and its position is fixed by a drive component, making operation simple and convenient and improving the ease of use of the device.

[0026] Optionally, the reflective assembly includes a first reflector rotatably connected to the sliding block and a second reflector disposed on the sliding block. The first reflector and the second reflector are respectively located on opposite sides of the reflective groove opening. The mounting block is provided with a transmission assembly for driving the second reflector to rotate.

[0027] By adopting the above technical solution, when the illumination angle of light is changed by using the reflective component, the light-emitting component emits light. The light enters the first reflective mirror through the reflective groove. The first reflective mirror reflects the light and then reflects it through the second reflective mirror, so that the light enters the second objective lens perpendicularly. After that, the first objective lens can be adjusted and the light can be detected.

[0028] Meanwhile, when it is necessary to make coaxial adjustment of endoscopes with different viewing angles, the first reflecting mirror can be driven to rotate through the transmission component until the light enters the second objective lens perpendicularly again, that is, the first reflecting mirror rotates to the appropriate angle. Then, the transmission component makes the first reflecting mirror stop rotating, thereby fixing the position of the first reflecting mirror.

[0029] The rotation of the first reflecting mirror enables the device to be coaxially adjusted for endoscopes at different viewing angles, improving the device's practicality.

[0030] Optionally, the mounting block is provided with a connecting groove that connects the receiving groove and the mounting groove. The transmission assembly includes a second worm axially disposed on the first worm, a rotating rod disposed on the first reflector, and a second worm wheel axially disposed on the rotating rod. The rotating rod is rotatably connected in the connecting groove, and the second worm wheel and the second worm mesh and are both rotatably connected in the receiving groove.

[0031] By adopting the above technical solution, when coaxial adjustment of endoscopes with different viewing angles is required, the driving component drives the first worm gear to rotate, causing the baffle to rotate within the rotating groove. Simultaneously, the first worm gear drives the second worm gear to rotate together. The second worm gear meshes with the second worm wheel, which is axially fixedly connected to the rotating rod. As the rotating rod rotates, the first reflector is mounted on the rotating rod, thus realizing the rotation of the first reflector. The angle that the baffle needs to rotate is proportional to the angle that the first reflector needs to rotate. The diameters of the first and second worm wheels are set according to this ratio, so that when the baffle rotates a certain angle, the first reflector will rotate at the appropriate angle according to the corresponding ratio. Therefore, the baffle and the first reflector will rotate synchronously to the appropriate angle. Then, the driving component stops the first worm gear from rotating, thereby fixing the positions of the baffle and the first reflector.

[0032] The first worm and the second worm are axially fixedly connected. At the same time, the diameters and lengths of the first worm wheel and the second worm wheel are set in a corresponding ratio, which realizes the synchronous rotation and adjustment of the baffle and the first reflector without the need for separate control, thus improving the ease of use of the device.

[0033] Optionally, a connecting rod is slidably connected to one end of the first worm near the second worm. The second worm is provided with a locking groove that cooperates with the connecting rod. An elastic block is provided on the groove wall of the locking groove. A plurality of limiting grooves that cooperate with the elastic block are provided on the circumferential side wall of the connecting rod. The first worm is provided with a pushing component for driving the connecting rod to slide, and the second worm is provided with a fixing component for limiting its own rotation.

[0034] By adopting the above technical solution, when the baffle and the first reflector need to be adjusted synchronously, the pushing component drives the connecting rod to slide, causing the connecting rod to engage with the locking groove. During this process, the circumferential sidewall of the connecting rod abuts against the elastic block, applying pressure to the elastic block. The elastic block, made of elastic material, undergoes elastic deformation under force and maintains a tendency to return to its original position until the connecting rod slides to the corresponding position, i.e., the elastic block aligns with the corresponding limiting groove on the connecting rod. The elastic block then returns to its original position and engages with the limiting groove. At this point, the pushing component no longer causes the connecting rod to slide. When the first worm gear rotates, the groove wall of the limiting groove applies a thrust to the elastic block, causing the elastic block to rotate along with the second worm gear, thereby achieving the synchronous adjustment of the baffle and the first reflector.

[0035] Because optical components require highly precise data, to prevent errors in the rotation of the baffle and the first reflector, after the first reflector is rotated to the precise angle, the push assembly drives the connecting rod to slide towards the first worm gear. The groove wall of the limiting slot applies pressure to the elastic block, causing the elastic block to undergo elastic deformation. The sliding of the connecting rod cancels the insertion and engagement between the elastic block and the connecting rod. Furthermore, the rotation of the second worm gear is restricted by the fixing assembly, thereby fixing the angle of the first reflector. Then, the first worm gear is driven to rotate by the drive component. At this time, the first worm gear will not rotate with the second worm gear, thus realizing the individual adjustment of the baffle angle. That is, after ensuring that the first reflector rotates to the precise angle, the angle of the baffle can be finely adjusted, making the device more precise. This reduces the risk that the use of the device will be affected by the inaccurate angle of the baffle and the first reflector, and improves the accuracy and stability of the device.

[0036] Optionally, the locking groove connects the two ends of the second worm gear, and the fixing component includes a limiting groove disposed on the groove wall of the receiving groove and a limiting rod slidably connected in the limiting groove. The circumferential side wall of the limiting rod is provided with a plurality of limiting grooves that cooperate with the elastic block, and a reset member for driving the limiting rod to reset and slide is disposed in the limiting groove.

[0037] By adopting the above technical solution, when the first worm rotates with the second worm, the elastic block is engaged with the corresponding limiting groove on the connecting rod. At the same time, the connecting rod applies pressure to the limiting rod, and the limiting rod applies pressure to the reset component. The reset component undergoes elastic deformation under force and maintains the tendency to reset.

[0038] When it is necessary to prevent the first worm from rotating the second worm, a fixing component is needed to restrict the rotation of the second worm. A pushing component causes the connecting rod to slide closer to the first worm, and the insertion of the elastic block into the limiting groove is released. The connecting rod gradually releases pressure on the limiting rod, and the limiting rod also gradually reduces its pressure. The resetting component resets and applies a pushing force to the limiting rod, causing it to slide back to its original position. During this process, the limiting rod applies pressure to the elastic block, causing it to undergo elastic deformation. This continues until the limiting rod slides to the appropriate position, where the elastic block aligns with the limiting groove on the limiting rod. The elastic block resets and engages with the limiting groove, and the groove wall restricts the rotation of the elastic block, thus restricting the rotation of the second worm.

[0039] The setting of several limiting grooves on the reset component and the limiting rod allows the fixing component to limit and cancel the rotation of the second worm gear without separate control, thus improving the ease of use of the device.

[0040] In summary, this application includes at least one of the following beneficial technical effects: 1. Adjusting the position of the first objective lens enables coaxial adjustment of the optical components inside the endoscope, eliminating the need for multiple disassembly and assembly of the endoscope. The operation is simple and convenient, improving the installation efficiency of the endoscope. 2. This allows the device to be used with endoscopes of different sizes, improving its practicality; 3. It achieves synchronous rotation and adjustment of the baffle and the first reflector without the need for separate control, thus improving the ease of use of the device; 1. It reduces the risk of the device being affected by the inaccurate angle of the baffle and the first reflector, and improves the accuracy and stability of the device. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall cross-sectional structure of Embodiment 1 of this application; Figure 3 This is a schematic diagram of the integrated support structure of the object prism in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the mounting block structure of Embodiment 1 of this application; Figure 5 This is a schematic diagram of the sliding block structure of Embodiment 1 of this application; Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 7 This is a schematic diagram of the mounting block structure of Embodiment 2 of this application; Figure 8 This is a schematic diagram of the reflective component structure of Embodiment 2 of this application; Figure 9 This is a schematic diagram of the baffle structure in Embodiment 2 of this application; Figure 10 This is a schematic diagram of the driving component structure of Embodiment 2 of this application; Figure 11 This is a schematic diagram of the transmission component structure of Embodiment 2 of this application; Figure 12 This is a schematic diagram of the pushing component structure of Embodiment 2 of this application; Figure 13 This is a schematic diagram of the fixed component structure of Embodiment 2 of this application.

[0042] Explanation of reference numerals in the attached drawings: 1. Mounting platform; 2. Mounting block; 3. Integrated prism base; 4. Limiting component; 5. Reflecting component; 6. Driving component; 7. Transmission component; 8. Connecting rod; 9. Pushing component; 10. Fixing component; 11. Clamping component; 12. Light-emitting component; 13. Detection component; 21. Mounting slot; 22. Sliding block; 23. Insertion slot; 24. Receiving slot; 25. Connecting slot; 26. Communicating slot; 27. Driving component; 28. Sliding groove; 31. Inclined surface; 32. Sliding groove; 33. First fixing slot; 34. Second fixing slot; 41. Placement slot; 42. Baffle; 51. Second prism; 52. First reflector; 53. Second reflector; 61. Rotating shaft; 62. 63. First worm gear; 74. Second worm gear; 75. Rotating rod; 76. Second worm gear; 87. Limiting groove; 98. Moving groove; 99. Moving block; 90. Push rod; 101. Limiting groove; 102. Limiting rod; 111. Three-jaw chuck; 131. Optical magnifying lens; 132. CCD photoelectric system device; 133. Display screen; 221. Reflecting groove; 321. First objective lens; 331. Second objective lens; 341. First prism; 411. Rotating groove; 421. Light transmission groove; 631. Sliding groove; 711. Locking groove; 1021. Limiting groove; 1022. Reset component; 1111. Light entry groove; 6311. Tension spring; 7111. Elastic block. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1 - Appendix Figure 13 This application will be described in further detail.

[0044] Example 1: Embodiment 1 of this application discloses an endoscope objective lens centering device.

[0045] Reference Figure 1An endoscope objective lens centering device includes a mounting stage 1, a mounting block 2 slidably connected to the mounting stage 1, an object prism integrated seat 3 provided on the mounting block 2, and a clamping member 11 for limiting the sliding of the mounting block 2, a light-emitting component 12 for emitting light, and a detection component 13 for receiving and detecting whether the light is deviated.

[0046] Reference Figure 1 and Figure 2 The detection component 13 includes an optical magnifying lens 131 mounted on the mounting platform 1 and corresponding to the object prism integrated base 3, a CCD photoelectric system device 132 mounted on the mounting platform 1 and corresponding to the optical magnifying lens 131, and a display screen 133 electrically connected to the CCD photoelectric system device 132.

[0047] Reference Figure 1 and Figure 2 The clamping component 11 is a three-jaw chuck 111, which is rotatably connected to the mounting platform 1. The three-jaw chuck 111 has a light-entry slot 1111 corresponding to the light-emitting component 12.

[0048] Reference Figure 2 and Figure 3 The mounting block 2 has a mounting groove 21 corresponding to the light-emitting component 12, and the integrated base 3 is slidably connected in the mounting groove 21.

[0049] Reference Figure 2 and Figure 3 One end of the object lens 3 is integrally formed with an inclined surface 31, and the other end is provided with a sliding groove 32. The inclined surface 31 is provided with a first fixing groove 33. The object lens 3 is provided with a second fixing groove 34 that connects the first fixing groove 33 and the sliding groove 32. The groove opening cross section of the sliding groove 32 is larger than the cross section of the first objective lens 321. The central axis of the first fixing groove 33 is perpendicular to the plane where the inclined surface 31 is located.

[0050] Reference Figure 4 and Figure 5 The mounting block 2 is equipped with a limiting component 4 for limiting the sliding of the integrated base 3. The limiting component 4 includes a placement groove 41 opened on the circumferential side wall of the mounting block 2 and a baffle 42 installed on the mounting block 2 and inserted into the placement groove 41. The baffle 42 has a light-transmitting groove 421 corresponding to the first fixing groove 33.

[0051] Refer to 4 and Figure 5 Mounting block 2 is equipped with sliding block 22. The circumferential side wall of mounting block 2 is provided with insertion groove 23 that connects to mounting groove 21. Sliding block 22 is inserted into insertion groove 23.

[0052] Reference Figure 4 and Figure 5The sliding block 22 has a reflective groove 221 corresponding to the mounting groove 21 and a reflective component 5 for changing the angle of light illumination. The reflective component 5 includes a second prism 51 fixedly connected to the sliding block 22 and corresponding to the reflective groove 221.

[0053] The implementation principle of the endoscope objective lens centering device in Embodiment 1 of this application is as follows: When it is necessary to perform coaxial adjustment of the optical components inside the endoscope, the second objective lens 331 is installed in the first fixed groove 33 and the first prism 341 is installed in the second fixed groove 34. The second objective lens 331 and the first prism 341 are fixed in the corresponding positions. The cross section of the second objective lens 331 is parallel to the cross section of the first fixed groove, and the light entering from the second objective lens 331 can be reflected by the first prism 341 and enter the sliding groove 32.

[0054] Next, insert the baffle 42 into the placement groove 41, so that the baffle 42 and the placement groove 41 are engaged. Place the object prism integrated seat 3 into the mounting groove 21. The side of the baffle 42 near the object prism integrated seat 3 is in contact with the inclined surface 31. The baffle 42 supports the object prism integrated seat 3 and restricts the sliding of the object prism integrated seat 3 in the mounting groove 21. Then, select a suitable second prism 51 according to the viewing angle of the endoscope, and fix the second prism 51 to the sliding block 22, so that the second prism 51 corresponds to the reflection groove 221. After the second prism 51 is fixed, insert the sliding block 22 into the insertion groove 23, so that the sliding block 22 and the insertion groove 23 are engaged. After the installation is completed, install the mounting block 2 onto the three-jaw chuck 111 and fix the mounting block 2 with the three-jaw chuck 111.

[0055] Next, UV adhesive is placed in the sliding groove 32, and the first objective lens 321 is placed in the sliding groove 32, so that the first objective lens 321 is slidably connected in the sliding groove 32, causing the light-emitting component 12 to emit light. The light enters the mounting groove 21 through the light inlet groove 1111, and then enters the second prism 51 through the reflection groove 221. The light undergoes two reflections after passing through the second prism 51, and finally enters the second objective lens 331 through the light transmission groove 421 at an angle perpendicular to the cross-section of the second objective lens 331. After that, the light is reflected by the first prism 341 and enters the first objective lens 321. After exiting the first objective lens 321, the light enters the optical magnifying lens 131. After being magnified by the optical magnifying lens 131, the light enters the CCD photoelectric system device 132. The CCD photoelectric system device 132 converts the light incident point into an electrical signal and displays it on the display screen 133.

[0056] Then, the light path is calibrated by rotating the three-jaw chuck 111. If the light does not enter along the specified path, the display screen 133 will show a crosshair spot jumping around the crosshair reference point. The crosshair spot indicates the light entry point. Then, the first objective lens 321 is slid in the sliding groove 32 until the crosshair spot stops jumping around the crosshair reference point. At this time, the light enters the CCD photoelectric system device 132 along the specified path. That is, the light enters the optical magnifying lens 131 at an angle parallel to the central axis of the first objective lens 321, so that the optical components in the object prism integrated base 3 are coaxial. Then, the ultraviolet lamp is used to irradiate the ultraviolet adhesive in the sliding groove 32 to solidify the ultraviolet adhesive, thereby fixing the first objective lens 321. This completes the installation and fixing of the optical components in the object prism integrated base 3. Then, the object prism integrated base 3 is installed in the endoscope and can be used. This achieves the coaxial adjustment of the optical components in the endoscope.

[0057] The endoscope employs an integrated prism mount 3 and slides the first objective lens 321 within the sliding groove 32. The light-emitting component 12 and the detection component 13 work together to detect whether the optical components are coaxial. This allows the coaxial adjustment of the optical components within the endoscope to be achieved by adjusting the position of the first objective lens 321, eliminating the need for multiple disassemblies and reassemblies of the endoscope. The operation is simple and convenient, improving the installation efficiency of the endoscope.

[0058] Example 2: The difference between Embodiment 2 and Embodiment 1 of this application is that: Reference Figure 6 and Figure 7 The wall of the placement groove 41 is provided with a rotating groove 411, and the baffle 42 is rotatably connected in the rotating groove 411. A drive assembly 6 for driving the baffle 42 to rotate is installed in the rotating groove 411.

[0059] Reference Figure 8 The reflective assembly 5 includes a first reflector 52 rotatably connected to the sliding block 22 and a second reflector 53 fixedly connected to the sliding block 22. The first reflector 52 and the second reflector 53 are located on opposite sides of the opening of the reflective groove 221, and the mounting block 2 is equipped with a transmission assembly 7 for driving the second reflector 53 to rotate.

[0060] Reference Figure 9 The mounting block 2 has a receiving groove 24, a connecting groove 25 connecting the receiving groove 24 and the rotating groove 411, and a connecting groove 26 connecting the receiving groove 24 and the mounting groove 21.

[0061] Reference Figure 10The drive assembly 6 includes a rotating shaft 61 fixedly connected to the baffle 42, a first worm gear 62 axially fixedly connected to the rotating shaft 61, and a first worm 63 meshing with the first worm gear 62. The rotating shaft 61 is rotatably connected in the connecting groove 25, and the first worm gear 62 and the first worm 63 are both rotatably connected in the receiving groove 24. The mounting block 2 is equipped with a drive component 27 for driving the first worm 63 to rotate. The drive component 27 adopts a conventional drive motor, and one end of the drive component 27 is connected to the first worm 63.

[0062] Reference Figure 11 The transmission assembly 7 includes a second worm 71 axially fixedly connected to the first worm 63, a rotating rod 72 fixedly connected to the first reflector 52, and a second worm wheel 73 axially fixedly connected to the rotating rod 72. The rotating rod 72 is rotatably connected in the communicating groove 26, and the second worm wheel 73 and the second worm 71 mesh with each other and are both rotatably connected in the receiving groove 24.

[0063] Reference Figure 12 and Figure 13 The first worm 63 has a sliding groove 631 at one end near the second worm 71. A connecting rod 8 is slidably connected in the sliding groove 631. The second worm 71 has a locking groove 711 that is inserted and engaged with the connecting rod 8. The locking groove 711 connects the two ends of the second worm 71. An elastic block 7111 is fixedly connected to the groove wall of the locking groove 711. The circumferential side wall of the connecting rod 8 has multiple limiting grooves 81 that are inserted and engaged with the elastic block 7111. The elastic block 7111 is made of elastic material such as rubber.

[0064] Reference Figure 12 and Figure 13 The first worm gear 63 is equipped with a push assembly 9 for driving the connecting rod 8 to slide. The push assembly 9 includes two moving slots 91 formed on the wall of the sliding slot 631, a moving block 92 fixedly connected to the circumferential side wall of the connecting rod 8, and a push rod 93 axially fixedly connected to the circumferential side wall of the connecting rod 8. The moving block 92 slides in cooperation with the corresponding moving slot 91.

[0065] Reference Figure 12 and Figure 13 The mounting block 2 has a sliding groove 28 that connects to the receiving groove 24, and the push rod 93 is slidably connected in the sliding groove 28. The sliding groove 631 is equipped with a tension spring 6311 for driving the connecting rod 8 to return to its original position and slide. One end of the tension spring 6311 is fixedly connected to the groove wall of the sliding groove 631, and the other end is fixedly connected to the connecting rod 8.

[0066] Reference Figure 13 The second worm gear 71 is equipped with a fixing component 10 for limiting its own rotation. The fixing component 10 includes a limiting groove 101 formed in the groove wall of the receiving groove 24 and a limiting rod 102 slidably connected in the limiting groove 101.

[0067] Reference Figure 13 The circumferential sidewall of the limiting rod 102 is provided with a plurality of limiting grooves 1021 that are inserted and engaged with the elastic block 7111. A reset member 1022 for driving the limiting rod 102 to reset and slide is installed in the limiting groove 101. The reset member 1022 adopts a conventional compression spring. One end of the reset member 1022 is fixedly connected to the limiting rod 102, and the other end is fixedly connected to the groove wall of the receiving groove 24.

[0068] The implementation principle of the endoscope objective lens centering device in Embodiment 2 of this application is as follows: When the reflective component 5 is used to change the incident angle of light, the first reflector 52 is placed at a suitable angle. Light enters the first reflector 52 through the reflective groove 221, and is reflected by the first reflector 52 to the second reflector 53. After being reflected by the second reflector 53, the light enters the second objective lens 331 through the light transmission groove 421 at an angle perpendicular to the cross-section of the second objective lens 331.

[0069] When coaxial adjustment of optical components of endoscopes at different viewing angles is required, the first worm gear 63 is driven to rotate by the drive component 27. The first worm gear 63 meshes with the first worm wheel 62, which is axially fixed to the rotating shaft 61, causing the rotating shaft 61 to rotate. The rotating shaft 61 is mounted on the baffle 42, thereby enabling the baffle 42 to rotate within the rotating groove 411. Simultaneously, during adjustment, the elastic block 7111 on the locking groove 711 engages with the corresponding limiting groove 81 on the connecting rod 8. When the first worm gear 63 rotates, the groove wall of the moving groove 91 applies a pushing force to the moving block 92 of the connecting rod 8, causing the connecting rod 8 to rotate with the first worm gear 63. The groove wall of the limiting groove 81 on the connecting rod 8 applies a pushing force to the elastic block 7111. The locking groove 711 is located on the second worm gear 71, causing the second worm gear 71 to rotate with the first worm gear 63.

[0070] The second worm 71 meshes with the second worm wheel 73, which is axially fixed to the rotating rod 72. Rotation of the rotating rod 72 causes the first reflector 52 to rotate. The angle at which the baffle 42 needs to rotate is proportional to the angle at which the first reflector 52 needs to rotate. The diameters of the first worm wheel 62 and the second worm wheel 73 are set according to this proportion. Therefore, the baffle 42 and the first reflector 52 will rotate synchronously to a suitable angle. Then, the driving component 27 stops the first worm 63 from rotating, thus fixing the positions of the baffle 42 and the first reflector 52.

[0071] At this time, the tension spring 6311 undergoes elastic deformation and is in a stretched state. The connecting rod 8 applies pressure to the limiting rod 102, and the limiting rod 102 applies pressure to the reset member 1022. The reset member 1022 undergoes elastic deformation under force and maintains the tendency to reset.

[0072] Simultaneously, to ensure more precise rotation angles of the baffle 42 and the first reflector 52, the first worm gear 63 first rotates the second worm gear 71, causing the first reflector 52 to rotate. Once the first reflector 52 reaches the precise angle, an upward thrust is applied to the push rod 93, causing the connecting rod 8 to slide closer to the first worm gear 63. The groove wall of the limiting groove 81 applies pressure to the elastic block 7111, causing the elastic block 7111 to undergo elastic deformation. The sliding of the connecting rod 8 thus cancels the insertion and engagement between the elastic block 7111 and the connecting rod 8. At the same time, the connecting rod 8 gradually releases pressure on the limiting rod 102, and the limiting rod 102 also gradually reduces its pressure on the limiting rod 102. The pressure of the limiting rod 102 causes the resetting member 1022 to reset. The resetting member 1022 applies a pushing force to the limiting rod 102, causing the limiting rod 102 to slide back to its original position. During this process, the limiting rod 102 applies pressure to the elastic block 7111, causing the elastic block 7111 to undergo elastic deformation under the force. This continues until the limiting rod 102 slides to the appropriate position, that is, the elastic block 7111 corresponds to the limiting groove 1021 on the limiting rod 102. The elastic block 7111 resets and engages with the limiting groove 1021. The groove wall of the limiting groove 1021 restricts the rotation of the elastic block 7111, that is, restricts the rotation of the second worm gear 71, thereby fixing the angle of the first reflector 52. Then, the first worm gear 63 is driven to rotate by the drive component 27. At this time, the first worm gear 63 will not rotate with the second worm gear 71, thereby realizing the individual adjustment of the angle of the baffle 42. That is, after ensuring that the first reflector 52 rotates to the precise angle, the angle of the baffle 42 can be finely adjusted, making the device more accurate.

[0073] The first worm 63 and the second worm 71 are axially fixedly connected. At the same time, the diameters and lengths of the first worm wheel 62 and the second worm wheel 73 are set in a corresponding ratio, realizing the synchronous rotation and adjustment of the baffle 42 and the first reflector 52 without separate control, which improves the convenience of the device. At the same time, it allows the angle of the baffle 42 to be adjusted independently, thus enabling precise adjustment of the first reflector 52 and the baffle 42. This reduces the risk of the device being affected by the inaccurate angle of the baffle 42 and the first reflector 52, and improves the accuracy and stability of the device.

[0074] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An endoscope objective lens centering device, characterized in that: The device includes a mounting platform (1), which is slidably connected to an integrated object prism seat (3). One end of the integrated object prism seat (3) is provided with an inclined surface (31) and the other end is provided with a sliding groove (32). The inclined surface (31) is provided with a first fixing groove (33), the central axis of which is perpendicular to the plane where the inclined surface (31) is located. The integrated object prism seat (3) is provided with a second fixing groove (34) connecting the first fixing groove (33) and the sliding groove (32). The mounting platform (1) is provided with a limiting component (4) for limiting the sliding of the integrated object prism seat (3), a light-emitting component (12) for emitting light, and a detection component (13) for receiving and detecting whether the light is deviated.

2. The endoscope objective lens centering device according to claim 1, characterized in that: The mounting platform (1) is slidably connected to the mounting block (2), the mounting block (2) is provided with a mounting groove (21) corresponding to the light-emitting component (12), the object prism integrated seat (3) is slidably connected in the mounting groove (21), the mounting block (2) is provided with a sliding block (22), the sliding block (22) is provided with a reflective groove (221) corresponding to the mounting groove (21) and a reflective component (5) for changing the light illumination angle, and the mounting platform (1) is provided with a clamping member (11) for restricting the sliding of the mounting block (2).

3. The endoscope objective lens centering device according to claim 2, characterized in that: The circumferential sidewall of the mounting block (2) is provided with a plug groove (23) that communicates with the mounting groove (21). The plug groove (23) cooperates with the sliding block (22). The reflective component (5) includes a second prism (51) disposed on the sliding block (22) and corresponding to the reflective groove (221).

4. The endoscope objective lens centering device according to claim 2, characterized in that: The limiting component (4) includes a placement groove (41) disposed on the circumferential sidewall of the mounting block (2) and a baffle (42) disposed on the mounting block (2) and cooperating with the placement groove (41). The placement groove (41) is connected to the mounting groove (21), and the baffle (42) is provided with a light-transmitting groove (421) corresponding to the first fixing groove (33).

5. The endoscope objective lens centering device according to claim 4, characterized in that: The placement groove (41) has a rotating groove (411) on its wall. The baffle (42) is rotatably connected to the rotating groove (411). The rotating groove (411) is provided with a driving component (6) for driving the baffle (42) to rotate.

6. The endoscope objective lens centering device according to claim 5, characterized in that: The mounting block (2) is provided with a receiving groove (24) and a connecting groove (25) connecting the receiving groove (24) and the rotating groove (411). The driving assembly (6) includes a rotating shaft (61) disposed on the baffle (42), a first worm wheel (62) axially disposed on the rotating shaft (61), and a first worm (63) meshing with the first worm wheel (62). The rotating shaft (61) is rotatably connected in the connecting groove (25). The first worm wheel (62) and the first worm (63) are both rotatably connected in the receiving groove (24). The mounting block (2) is provided with a driving member (27) for driving the first worm (63) to rotate.

7. The endoscope objective lens centering device according to claim 6, characterized in that: The reflective assembly (5) includes a first reflector (52) rotatably connected to the sliding block (22) and a second reflector (53) disposed on the sliding block (22). The first reflector (52) and the second reflector (53) are respectively located on opposite sides of the opening of the reflective groove (221). The mounting block (2) is provided with a transmission assembly (7) for driving the second reflector (53) to rotate.

8. The endoscope objective lens centering device according to claim 7, characterized in that: The mounting block (2) is provided with a connecting groove (26) connecting the receiving groove (24) and the mounting groove (21). The transmission assembly (7) includes a second worm (71) axially arranged on the first worm (63), a rotating rod (72) arranged on the first reflector (52), and a second worm wheel (73) axially arranged on the rotating rod (72). The rotating rod (72) is rotatably connected in the connecting groove (26), and the second worm wheel (73) and the second worm (71) mesh and are both rotatably connected in the receiving groove (24).

9. The endoscope objective lens centering device according to claim 8, characterized in that: The first worm (63) is slidably connected to a connecting rod (8) at one end near the second worm (71). The second worm (71) is provided with a locking groove (711) that cooperates with the connecting rod (8). The groove wall of the locking groove (711) is provided with an elastic block (7111). The circumferential sidewall of the connecting rod (8) is provided with a plurality of limiting grooves (81) that cooperate with the elastic block (7111). The first worm (63) is provided with a pushing component (9) for driving the connecting rod (8) to slide. The second worm (71) is provided with a fixing component (10) for limiting its own rotation.

10. The endoscope objective lens centering device according to claim 9, characterized in that: The locking groove (711) connects the two ends of the second worm gear (71). The fixing assembly (10) includes a limiting groove (101) disposed on the groove wall of the receiving groove (24) and a limiting rod (102) slidably connected in the limiting groove (101). The circumferential sidewall of the limiting rod (102) is provided with a plurality of limiting grooves (1021) that cooperate with the elastic block (7111). The limiting groove (101) is provided with a reset member (1022) for driving the limiting rod (102) to reset and slide.

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