Bayonet assembly, endoscope lens and endoscope

Abstract

The utility model relates to a bayonet assembly, an endoscope lens and an endoscope, the bayonet assembly comprises a base, the base is provided with a containing groove, the bottom wall of the containing groove is provided with a light hole, and the light hole extends from the inner bottom wall of the containing groove to the outer bottom wall of the containing groove and penetrates through the outer bottom wall of the containing groove; the rotating ring is rotationally connected to the base; a bent guide channel is arranged on the rotating ring; the sliding block is slidably arranged on the side wall of the containing groove in a penetrating mode so as to enter and exit from the containing groove, and the sliding block and the bottom wall of the containing groove are arranged in a spaced mode; the sliding block is provided with a stress part, and at least part of the stress part is located in the guide channel. One end of the elastic piece is connected to the base, and the other end of the elastic piece is connected to the rotating ring; the wall of the guide channel can push the stress part to enable the sliding block to enter and exit from the containing groove in the process that the rotating ring rotates relative to the base, and the elastic piece is always in a stretching state in the process that the sliding block enters and exits from the containing groove. The size of the sliding block can be small, and the requirements of the bayonet assembly for the machining precision and the assembling precision can be lowered.

Description

Technical Field

[0001] This application relates to the field of bayonet assembly technology, and in particular to bayonet assemblies, endoscope lenses, and endoscopes. Background Technology

[0002] An endoscope consists of a rigid endoscope, an endoscope lens, and a handpiece. The rigid endoscope is the core component of the endoscope, containing an objective lens, a cylindrical lens group, and an eyepiece. The rigid endoscope is inserted into the target area to acquire images. The endoscope tube, located near the eyepiece, is mounted within the endoscope lens. The endoscope lens converts the optical images acquired by the rigid endoscope into electronic signals, which are then transmitted to an external display device via a data cable.

[0003] Chinese utility model patent CN217181341U discloses a bayonet mount assembly for connecting an optical bayonet mount to a rigid endoscope and an endoscope optical lens. The bayonet mount assembly includes a latching base, a bayonet cap, a retaining ring, and a reset elastic component. The retaining ring has a mounting end and a working end, with the mounting end pivotally connected to the bayonet cap. During rotation of the retaining ring relative to the bayonet cap, the working end moves radially. When the working end moves radially outward, the eyecup of the rigid endoscope can be inserted into the corresponding mating hole of the bayonet mount, fitting snugly against the bottom of the hole; when the working end moves radially inward to the inclined surface of the eyecup, it achieves axial compression and locking of the eyecup. In short, this bayonet mount assembly utilizes the rotation of the retaining ring to achieve radial movement of the working end, thereby enabling the mounting and dismounting of the rigid endoscope. The card interface assembly has the following problems: In order to ensure that the working end has sufficient stroke to press the goggles firmly, there needs to be a sufficiently large distance between the pivot point of the mounting end and the bayonet cap (i.e., the pivot of the retaining ring relative to the bayonet cap) and the working end. This results in an increased size of the retaining ring. If the machining or assembly errors of the card interface assembly are large, the axial positional error of the working end will be large, which is not conducive to pressing the goggles firmly. In other words, this card interface assembly has high requirements for machining and assembly precision. Utility Model Content

[0004] Therefore, it is necessary to provide a bayonet component to address the above problems.

[0005] To address the above problems, this application provides the following technical solution:

[0006] A bayonet assembly includes: a base, the base having a receiving groove, the bottom wall of the receiving groove having a light-transmitting hole, the light-transmitting hole extending from the inner bottom wall of the receiving groove toward the outer bottom wall of the receiving groove and penetrating the outer bottom wall of the receiving groove;

[0007] A rotating ring is rotatably connected to the base; the rotating ring is provided with a curved guide channel;

[0008] A slider, slidably disposed through the side wall of the receiving groove to enter and exit the receiving groove, the slider being spaced apart from the bottom wall of the receiving groove; the slider having a force-receiving portion, the force-receiving portion being at least partially located within the guide channel; and

[0009] An elastic element, one end of which is connected to the base and the other end of which is connected to the rotating ring;

[0010] The wall of the guide channel can push the force-bearing part to move the slider in and out of the receiving groove during the rotation of the rotating ring relative to the base. During the process of the slider moving in and out of the receiving groove, the elastic element is always in a stretched state.

[0011] This bayonet assembly has at least the following beneficial effects:

[0012] This bayonet assembly assembles and disassembles the rigid lens by moving a slider, rather than by rotating it. This allows for a smaller slider size, which helps reduce the impact of machining and assembly errors on the slider's grip on the eyepiece and lowers the requirements for machining and assembly precision.

[0013] In one embodiment, there are two sliders and two elastic elements, with the two sliders facing each other; the rotating ring has two guide channels that bend in the same direction, and the guide channels, the elastic elements and the sliders are arranged in a one-to-one correspondence.

[0014] With this configuration, the two sliders and the bottom wall of the receiving groove work together to abut against and fix the eye mask. The two sliders work together to provide a greater force on the eye mask, which is beneficial for fixing the rigid lens.

[0015] In one embodiment, the receiving groove is a circular groove, the rotating ring is coaxially arranged with the receiving groove, the rotation axis of the rotating ring relative to the base is collinear with the axis of the rotating ring, the two sliders are symmetrically arranged about the axis of the rotating ring, the two guide channels are rotationally symmetrically arranged about the axis of the rotating ring, and the two elastic elements are rotationally symmetrically arranged about the axis of the rotating ring.

[0016] With this configuration, when fixing the goggles, the two sliders extend into the receiving groove for the same length, which makes the goggles bear force evenly and helps to stably fix the rigid lenses.

[0017] In one embodiment, the elastic element is arc-shaped and is fitted to the outer peripheral surface of the rotating ring.

[0018] With this configuration, the elastic element can adapt well to the outer circumference of the rotating ring, and the deformation direction of the elastic element is approximately the same as the rotation direction of the rotating ring, which is beneficial for the elastic element to drive the rotating ring to rotate during the rebound process.

[0019] In one embodiment, the elastic element is an arc-shaped spring.

[0020] With this configuration, the natural state of the arc spring is arc-shaped, and the arc spring has good elasticity, which helps the elastic element adapt to the outer circumference of the rotating ring and helps the elastic element drive the rotating ring to rotate during the rebound process.

[0021] In one embodiment, a sliding groove is provided on the side wall of the receiving groove, the sliding groove passing through the outer side of the receiving groove, the inner side wall of the receiving groove and the side of the base facing the rotating ring, the two opposite side walls of the sliding groove are parallel to each other, and the slider is at least partially located in the sliding groove and conforms to the shape of the sliding groove.

[0022] With this design, the two opposite sidewalls of the slide can effectively guide the sliding of the slider.

[0023] In one embodiment, the force-receiving part is cylindrical, and the diameter of the force-receiving part is adapted to the width of the guide channel.

[0024] This design facilitates the rapid application of force to the stressed parts by the two opposing side walls on the guide channel, thereby increasing the speed of assembly and disassembly.

[0025] In one embodiment, the bayonet assembly further includes a force-applying member fixed to the rotating ring and extending radially outward along the rotating ring.

[0026] With this configuration, the user can rotate the rotating ring by pushing or pulling the force-applying component along the circumference of the rotating ring.

[0027] This application also provides an endoscope lens, the endoscope lens comprising:

[0028] A microscope tube, the inner side of which encloses a receiving cavity; and

[0029] The aforementioned bayonet assembly is fixed to the front end of the lens barrel along its axial direction, and the light-transmitting hole communicates with the receiving cavity.

[0030] This endoscope lens has at least the following beneficial effects:

[0031] In this endoscope lens, the bayonet assembly is used to assemble and disassemble the rigid endoscope by moving the slider, rather than by rotating the slider. This allows the slider to be smaller, which helps to reduce the impact of machining and assembly errors of the bayonet assembly on the slider's pressure on the eyecup, and reduces the requirements for machining and assembly precision of the bayonet assembly.

[0032] This application also provides an endoscope comprising:

[0033] A rigid endoscope, comprising a tube and an eyepiece, wherein one end of the tube along its length is an eyepiece end, and the eyepiece is fixedly attached to the eyepiece end of the tube; and

[0034] In the aforementioned endoscope lens, the eye mask is located within the receiving groove, and the slider can press the eye mask into the receiving groove after entering the receiving groove.

[0035] This endoscope has at least the following beneficial effects:

[0036] In this endoscope, the rigid endoscope is mounted and dismounted by moving a slider, rather than by rotating the slider. This allows the slider to be smaller, which helps to reduce the impact of machining and assembly errors of the bayonet assembly on the slider's pressure on the eyecup, and reduces the requirements for machining and assembly precision of the bayonet assembly. Attached Figure Description

[0037] Figure 1 This is a perspective view of a handle according to one embodiment of this application;

[0038] Figure 2 for Figure 1 An exploded view of the handle shown;

[0039] Figure 3 for Figure 2 An exploded view of the mid-mounted bayonet assembly.

[0040] Figure label:

[0041] 1. Bayonet assembly; 11. Base; 111. Receiving groove; 112. Light-transmitting hole; 113. First upright; 114. Sliding groove; 115. Limiting groove; 12. Rotating ring; 121. Guide channel; 1211. First end; 1212. Second end; 122. Second upright; 13. Slider; 131. Force-bearing part; 14. Elastic element; 15. Force-applying element; 16. Rotating mating part; 161. Rotating mating part; 17. Outer sleeve; 171. Circumferential side; 172. Limiting side; 1721. Clearance hole; 2. Lens barrel. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0048] See Figures 1 to 3 This application first provides a bayonet assembly 1, which includes a base 11, a rotating ring 12, a slider 13, and an elastic member 14. The base 11 has a receiving groove 111, and the bottom wall of the receiving groove 111 has a light-transmitting hole 112. The light-transmitting hole 112 extends from the inner bottom wall of the receiving groove 111 toward the outer bottom wall of the receiving groove 111 and penetrates through the outer bottom wall of the receiving groove 111. The rotating ring 12 is rotatably connected to the base 11, and the rotating ring 12 has a curved guide channel 121. The slider 13 is slidably disposed through the side wall of the receiving groove 111 to enter and exit the receiving groove 111. The slider 13 is spaced apart from the bottom wall of the receiving groove 111 to leave space for accommodating the goggles. The slider 13 has a force-receiving part 131, which is at least partially located within the guide channel 121. One end of the elastic member 14 is connected to the base 11, and the other end is connected to the rotating ring 12. The wall of the guide channel 121 can push the slider 13 into and out of the receiving groove 111 by pushing the force-bearing part 131 during the rotation of the rotating ring 12 relative to the base 11. Furthermore, the elastic element 14 is always in a stretched state during the process of the slider 13 entering and exiting the receiving groove 111.

[0049] The bayonet assembly 1 serves as a structure for securing a rigid endoscope to the endoscope lens, with the eyepiece of the rigid endoscope housed within the receiving groove 111. (See also...) Figure 3When rigid lenses need to be installed, the user first rotates the rotating ring 12 clockwise, causing the guide channel 121 to rotate clockwise as well. The side of the guide channel 121 closest to the receiving groove 111 pushes the force-bearing part 131 away from the receiving groove 111, thereby causing the slider 13 to exit the receiving groove 111. During this process, the elastic element 14 is stretched more. After the slider 13 exits the receiving groove 111, the rigid lens eyecup is inserted into the receiving groove 111 until the eyecup rests against the bottom wall of the receiving groove 111. Afterwards, the user releases the rotating ring 12, and the elastic element 14 rebounds. Under the action of the elastic element 14, the rotating ring 12 rotates counterclockwise, and the guide channel 121 rotates counterclockwise as well. The side of the guide channel 121 away from the receiving groove 111 pushes the force-bearing part 131 towards the receiving groove 111, thereby causing the slider 13 to partially enter the receiving groove 111 and press against the side of the eye mask away from the bottom wall of the receiving groove 111. In this way, the slider 13 presses the eye mask into the receiving groove 111, thus fixing the rigid lens and completing the installation of the rigid lens. When it is necessary to remove the rigid lens, the user rotates the rotating ring 12 clockwise until the slider 13 exits the receiving groove 111, thereby releasing the constraint of the slider 13 on the eye mask, and moving the rigid lens out of the receiving groove 111 to remove the rigid lens.

[0050] The bayonet assembly 1 achieves the installation and removal of the rigid lens by moving the slider 13, rather than by rotating the slider 13. This allows the slider 13 to be smaller, which helps to reduce the impact of the machining and assembly errors of the bayonet assembly 1 on the slider 13 pressing the eye mask, and reduces the requirements of the bayonet assembly 1 for machining and assembly accuracy.

[0051] In some embodiments, only one slider 13 and one elastic member 14 are provided. The bottom wall of the slider 13, the side wall of the receiving groove 111 and the side wall of the receiving groove 111 together abut against and fix the goggles (that is, the slider 13 presses the goggles against the bottom wall and the side wall of the receiving groove 111).

[0052] See Figure 2 and Figure 3 Each component has two sliders 13 and two elastic elements 14, with the two sliders 13 facing each other. The rotating ring 12 has two guide channels 121 that curve in the same direction, and the guide channels 121, elastic elements 14, and sliders 13 are arranged in a one-to-one correspondence. (See reference...) Figure 3 During the counterclockwise rotation of the rotating ring 12, the two sliders 13 move closer to each other. The two sliders 13 and the bottom wall of the receiving groove 111 together abut against and fix the eye mask (that is, the two sliders 13 together press the eye mask against the bottom of the receiving groove 111). The two sliders 13 cooperate with each other and can provide a greater force to the eye mask, which is beneficial for fixing the rigid lens.

[0053] See Figure 2 and Figure 3The receiving groove 111 is a circular groove, and the rotating ring 12 is coaxially arranged with the receiving groove 111. The rotation axis of the rotating ring 12 relative to the base 11 is collinear with the axis of the rotating ring 12. The two sliders 13 are symmetrically arranged about the axis of the rotating ring 12, the two guide channels 121 are rotationally symmetrically arranged about the axis of the rotating ring 12, and the two elastic elements 14 are rotationally symmetrically arranged about the axis of the rotating ring 12. In this way, when fixing the eye patch, the two sliders 13 extend into the receiving groove 111 for the same length, which makes the force on the eye patch uniform and helps to stably fix the rigid lens.

[0054] See Figure 3 The guide channel 121 is arc-shaped, and its center is located outside the rotation axis of the rotating ring 12 relative to the base 11. In other embodiments, the guide channel 121 may also be elliptical, parabolic, or involute.

[0055] See Figure 3 The guide channel 121 has a first end 1211 and a second end 1212. The first end 1211 is relatively close to the axis of the rotating ring 12. When the rotating ring moves counterclockwise, the first end 1211 gradually approaches the force-bearing part 131; when the rotating ring moves clockwise, the second end 1212 gradually approaches the force-bearing part 131.

[0056] See Figure 3 The guide channel 121 is a through hole. In other embodiments, the guide channel 121 may also be a groove.

[0057] In some embodiments, at least three sliders 13 and at least three elastic elements 14 are provided. The rotating ring 12 has at least three guide channels 121 that curve in the same direction. The guide channels 121, elastic elements 14, and sliders 13 are arranged in a one-to-one correspondence. In these embodiments, preferably, the rotating ring 12 is coaxially arranged with the receiving groove 111, the rotation axis of the rotating ring 12 relative to the base 11 is collinear with the axis of the rotating ring 12, the sliders 13 are evenly distributed along the circumferential direction of the receiving groove 111, the guide channels 121 are evenly distributed along the circumferential direction of the rotating ring 12, and the elastic elements 14 are evenly distributed along the circumferential direction of the receiving groove 111. (See also...) Figure 3 During the counterclockwise rotation of the rotating ring 12, each slider 13 moves closer to the axis of the receiving groove 111. Each slider 13 and the bottom wall of the receiving groove 111 together abut against and fix the goggles (i.e., each slider 13 together presses the goggles against the bottom of the receiving groove 111). Exemplarily, the guide channel 121, the elastic element 14, and the sliders 13 are provided in three / four / five configurations.

[0058] See Figure 3The elastic element 14 is arc-shaped and fits snugly against the outer peripheral surface of the rotating ring 12. In this way, the elastic element 14 can adapt well to the outer peripheral surface of the rotating ring 12, and the deformation direction of the elastic element 14 is approximately the same as the rotation direction of the rotating ring 12, which is beneficial for the elastic element 14 to drive the rotating ring 12 to rotate during the rebound process. In other embodiments, the elastic element 14 may also be linear.

[0059] See Figure 3 The elastic element 14 is an arc-shaped spring. The natural state of an arc-shaped spring is arc-shaped, and the arc-shaped spring has good elasticity, which is conducive to the elastic element 14 adapting to the outer circumference of the rotating ring 12, and conducive to the elastic element 14 driving the rotating ring 12 to rotate during the rebound process.

[0060] See Figure 3 The base 11 is provided with a first upright 113, and the rotating ring 12 is provided with a second upright 122. One end of the elastic element 14 is sleeved on the first upright 113, and the other end is sleeved on the second upright 122. In other embodiments, the two ends of the elastic element 14 are welded to / bonded to the base 11 and the rotating ring 12, respectively.

[0061] In some embodiments, the elastic element 14 may also be an arc-shaped or straight rubber element.

[0062] See Figure 3 The receiving groove 111 has a sliding groove 114 on its side wall, which penetrates the outer side wall, the inner side wall and the side of the base 11 facing the rotating ring 12. The slider 13 is at least partially located in the sliding groove 114.

[0063] See Figure 3 The two opposite sidewalls of the slide groove 114 are parallel to each other, and the slider 13 is adapted to fit the slide groove 114. In this way, the two opposite sidewalls of the slide groove 114 can effectively guide the sliding of the slider 13.

[0064] See Figure 3 The bottom wall of the slide groove 114 is provided with a limiting groove 115, and the side walls of the limiting groove 115 are connected end to end; in other words, the side walls of the limiting groove 115 are a closed structure. A limiting post protrudes from the bottom side of the slider 13, and the limiting post is located within the limiting groove 115. This helps prevent the slider 13 from completely disengaging from the slide groove 114. A gap exists between the limiting post and the limiting groove 115 along the sliding direction of the slider 13 to allow the slider 13 to slide.

[0065] Preferably, the size of the limiting post is adapted to the width of the limiting groove 115. In this way, the sliding of the slider 13 can be effectively guided through the cooperation between the limiting groove 115 and the limiting post. For example, the limiting post is a cylinder, and its diameter is adapted to the width of the limiting groove 115; or, the limiting post is a square post, and the side length of its base is adapted to the width of the limiting groove 115.

[0066] More preferably, see Figure 3 The bottom wall of the slide groove 114 is provided with at least two limiting grooves 115, which are parallel to each other. The bottom side of the slider 13 is provided with multiple limiting posts, which are correspondingly arranged with the limiting grooves 115. Each limiting post is located in the corresponding limiting groove 115. For example, there are 2 / 3 / 4 limiting grooves 115.

[0067] See Figure 3 The force-receiving part 131 is cylindrical, and its diameter is adapted to the width of the guide channel 121. This facilitates the rapid application of force to the force-receiving part 131 by the two opposing sidewalls on the guide channel 121, thereby improving the assembly and disassembly speed.

[0068] See Figures 1 to 3 The bayonet assembly 1 also includes a force-applying member 15, which is fixed to the rotating ring 12 and extends outward along the radial direction of the rotating ring 12. In this way, the user can rotate the rotating ring 12 by pushing or pulling the force-applying member 15 along the circumferential direction of the rotating ring 12.

[0069] See Figure 3 The outer walls of the receiving groove 111 are within the same cylindrical surface. A rotating fitting 16 is fixedly provided on the rotating ring 12. The rotating fitting 16 is sleeved on the outer wall of the receiving groove 111 and conforms to the outer wall of the receiving groove 111. The rotating ring 12 and the base 11 are rotatably connected through the rotating fitting 16 and the outer wall of the receiving groove 111. Figure 3 In the embodiment shown, the rotating mating member 16 includes two oppositely arranged rotating mating parts 161.

[0070] Preferably, see Figure 3 To facilitate the application of force by the user, each of the two rotating mating parts 161 is fixed with a force-applying component 15.

[0071] See Figures 1 to 3The bayonet assembly 1 further includes an outer sleeve 17, which has a circumferential side 171 and a limiting side 172 fixed to the circumferential side 171. The circumferential side 171 is sleeved on the outside of the rotating ring 12 and screwed / welded / bonded to the base 11. The limiting side 172 is opposite to the base 11 along the axial direction of the rotating ring 12, and the rotating ring 12 is located between the limiting side 172 and the base 11. Along the axial direction of the rotating ring 12, the distance between the limiting side 172 and the base 11 is slightly greater than the thickness of the rotating ring 12. The limiting side 172 is provided with a clearance hole 1721, which communicates with the receiving groove 111. When the rigid lens is fixed with the bayonet assembly 1, the rigid lens passes through the clearance hole 1721 and extends into the receiving groove 111.

[0072] Preferably, the clearance hole 1721, the receiving groove 111, and the light-transmitting hole 112 are arranged coaxially.

[0073] In other embodiments, an annular groove may be formed on the outer wall of the receiving groove 111. The annular groove is coaxial with the receiving groove 111, and the rotating fitting 16 is partially located in the annular groove, and the portion of the rotating fitting 16 located in the annular groove is adapted to the annular groove.

[0074] In other embodiments, the rotating ring 12 and the base 11 can also be rotatably connected by a bearing, with the rotating ring 12 fixedly sleeved on the outer ring of the bearing and the inner ring of the bearing fixed to the base 11.

[0075] This application further provides an endoscope lens, which includes a barrel 2 and the aforementioned bayonet assembly 1. A receiving cavity is formed inside the barrel 2. The bayonet assembly 1 is fixed to the front end of the barrel 2 along its axial direction. A light-transmitting aperture 112 communicates with the receiving cavity to transmit the optical image acquired by the rigid endoscope to the endoscope lens. In this endoscope lens, the rigid endoscope is mounted and dismounted by moving a slider 13, rather than by rotating the slider 13. This allows for a smaller slider 13, reducing the impact of machining and assembly errors on the slider 13's pressure on the eyepiece, and lowering the requirements for machining and assembly precision of the bayonet assembly 1.

[0076] It should be noted that the objective lens, focusing lens and zoom lens are installed inside the lens barrel 2, and the front end of the lens barrel 2 in the axial direction is the end of the lens barrel 2 that is relatively close to the objective lens.

[0077] For example, the base 11 is screwed to / welded to / adhere to the front end of the lens barrel 2 along the axial direction.

[0078] This application also provides an endoscope, which includes a rigid endoscope and the aforementioned endoscope lens. The rigid endoscope includes a tube and an eyepiece, with one end of the tube along its length serving as the eyepiece end, and the eyepiece fixed to the eyepiece end of the tube. The eyepiece is located within a receiving groove 111, and the slider 13 can press the eyepiece into the receiving groove 111 after entering it. In this endoscope, the bayonet assembly 1 achieves the installation and removal of the rigid endoscope by moving the slider 13, rather than by rotating the slider 13. This allows for a smaller slider 13, which helps to reduce the impact of machining and assembly errors of the bayonet assembly 1 on the slider 13 pressing the eyepiece, and reduces the requirements for machining and assembly precision of the bayonet assembly 1.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A bayonet assembly, characterized in that, include: A base (11) is provided with a receiving groove (111), and a light-transmitting hole (112) is provided on the bottom wall of the receiving groove (111). The light-transmitting hole (112) extends from the inner bottom wall of the receiving groove (111) toward the outer bottom wall of the receiving groove (111) and penetrates the outer bottom wall of the receiving groove (111). A rotating ring (12) is rotatably connected to the base (11); the rotating ring (12) is provided with a curved guide channel (121); A slider (13) is slidably disposed through the side wall of the receiving groove (111) to enter and exit the receiving groove (111), the slider (13) being spaced apart from the bottom wall of the receiving groove (111); the slider (13) has a force-receiving part (131), the force-receiving part (131) being at least partially located within the guide channel (121); and An elastic element (14) is provided, one end of which is connected to the base (11) and the other end of which is connected to the rotating ring (12). The wall of the guide channel (121) can push the force-receiving part (131) to move the slider (13) into and out of the receiving groove (111) during the rotation of the rotating ring (12) relative to the base (11). During the process of the slider (13) moving into and out of the receiving groove (111), the elastic element (14) is always in a stretched state.

2. The bayonet assembly according to claim 1, characterized in that, Two sliders (13) and two elastic elements (14) are provided, and the two sliders (13) are arranged opposite each other; two guide channels (121) with the same direction of curvature are provided on the rotating ring (12), and the guide channels (121), the elastic elements (14) and the sliders (13) are arranged in a one-to-one correspondence.

3. The bayonet assembly according to claim 2, characterized in that, The receiving groove (111) is a circular groove. The rotating ring (12) is coaxially arranged with the receiving groove (111). The rotation axis of the rotating ring (12) relative to the base (11) is collinear with the axis of the rotating ring (12). The two sliders (13) are symmetrically arranged about the axis of the rotating ring (12). The two guide channels (121) are rotationally symmetrically arranged about the axis of the rotating ring (12). The two elastic elements (14) are rotationally symmetrically arranged about the axis of the rotating ring (12).

4. The bayonet assembly according to claim 1, characterized in that, The elastic element (14) is arc-shaped and is fitted to the outer circumferential surface of the rotating ring (12).

5. The bayonet assembly according to claim 4, characterized in that, The elastic element (14) is an arc-shaped spring.

6. The bayonet assembly according to claim 1, characterized in that, The receiving groove (111) has a sliding groove (114) on its side wall. The sliding groove (114) passes through the outer side of the receiving groove (111), the inner side wall of the receiving groove (111), and the side of the base (11) facing the rotating ring (12). The two opposite side walls of the sliding groove (114) are parallel to each other. The slider (13) is at least partially located in the sliding groove (114) and conforms to the shape of the sliding groove (114).

7. The bayonet assembly according to claim 1, characterized in that, The force-receiving part (131) is cylindrical, and the diameter of the force-receiving part (131) is adapted to the width of the guide channel (121).

8. The bayonet assembly according to claim 1, characterized in that, The bayonet assembly also includes a force-applying component (15), which is fixed to the rotating ring (12) and extends radially outward along the rotating ring (12).

9. An endoscope lens, characterized in that, include: The inner side of the lens tube (2) forms a receiving cavity; and The bayonet assembly according to any one of claims 1 to 8, wherein the bayonet assembly is fixed to the front end of the lens barrel (2) in the axial direction, and the light-transmitting hole (112) communicates with the receiving cavity.

10. An endoscope, characterized in that, include: A rigid endoscope includes a tube and an eyepiece, wherein one end of the tube along its length is the eyepiece end, and the eyepiece is fixed to the eyepiece end of the tube. and The endoscope lens of claim 9, wherein the eye mask is located in the receiving groove (111), and the slider (13) is capable of pressing the eye mask into the receiving groove (111) after entering the receiving groove (111).

Images