A rotating wheel mounting structure, an endoscope handle, and an endoscope
By setting installation channels and through holes on the endoscope handle and using the pivot and lever for fixing, the problem of complex rotary wheel assembly is solved, realizing a fast and simple assembly process and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN VATHIN MEDICAL INSTR CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-02
AI Technical Summary
In the existing technology, the rotating wheel fixing structure of the endoscope is complex, which leads to a cumbersome assembly process and low assembly efficiency.
The rotary mounting structure simplifies the assembly process by using a rotary shaft that passes directly through the channel and through hole on the handle housing and is fixed to the lever.
The assembly process of the rotating wheel is simplified, the assembly efficiency is improved, the operation is simple, the rotating wheel can be fixed quickly, and there is no need to use screws or other structural fixing methods.
Smart Images
Figure CN224307307U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of endoscope technology, specifically relating to a rotary mounting structure, an endoscope handle, and an endoscope. Background Technology
[0002] Endoscopes, as medical devices, are increasingly widely used in the medical field. An endoscope generally consists of a handle and an insertion section. One end of the insertion section is fixed to the handle, and the other end is equipped with a camera module. The insertion section is inserted into the human body, and the camera module captures images of internal structures and lesions.
[0003] The handle has a rotating wheel inside and a lever outside, which is connected to the rotating wheel. The rotation of the rotating wheel is controlled by moving the lever. A traction rope is connected between the rotating wheel and the insertion part. The traction rope is pulled by controlling the rotation of the rotating wheel, thereby controlling the bending of the insertion part and the forward direction of the insertion part, so as to facilitate the insertion of the insertion part into the human body cavity.
[0004] In the existing technology, the fixing structure of the wheel inside the handle is relatively complicated, which makes the assembly process of the wheel complicated and the assembly efficiency low. Utility Model Content
[0005] The purpose of this application is to provide a rotary mounting structure, an endoscope handle, and an endoscope to solve the aforementioned technical problems existing in the prior art.
[0006] This application is implemented as follows:
[0007] In a first aspect, embodiments of this application provide a rotary wheel mounting structure, including a rotary wheel, a rotary shaft, a handle housing, and a lever. The rotary wheel is located inside the handle housing and has a mounting channel. The handle housing has two mounting through holes located on both sides of the mounting channel along its axial direction. The rotary shaft passes through one of the mounting through holes, the mounting channel, and the other mounting through hole in sequence. Both ends of the rotary shaft are located outside the handle housing and are inserted and fixed to the lever. The rotary shaft is in a limiting fit with the rotary wheel in its circumferential direction and is in a limiting fit with the lever in its circumferential direction.
[0008] Secondly, embodiments of this application provide an endoscope handle, including the rotary mounting structure provided in the first aspect embodiment.
[0009] Thirdly, embodiments of this application provide an endoscope, including the endoscope handle provided in the second aspect embodiment.
[0010] The technical solution provided in this application can achieve the following beneficial effects:
[0011] In this application, an installation channel is provided on the rotating wheel, and installation through holes are provided on the handle housing at both ends of the installation channel. The handle housing and the rotating wheel can be connected together by directly passing the rotating shaft through one of the installation through holes, the installation channel, and the other installation through hole in sequence. Subsequently, the position of the rotating shaft is fixed by inserting the lever into the two ends of the rotating shaft outside the handle housing, thus completing the assembly of the rotating wheel. In the entire assembly process, there is no need to use screws or other structures to fix the rotating shaft and the lever, and there is no need to repeatedly adjust the position of the rotating shaft, which simplifies the assembly process of the rotating wheel and improves the assembly efficiency of the rotating wheel. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of the installation structure provided in some embodiments of this application. Figure 1 ;
[0014] Figure 2 This application is about Figure 1 Detailed view of point A;
[0015] Figure 3 This is a disassembled schematic diagram of the installation structure provided in some embodiments of this application;
[0016] Figure 4 This is a split schematic diagram of the wheel, shaft, and connector provided in some embodiments of this application;
[0017] Figure 5 This is a schematic diagram of the handle shell structure provided in some embodiments of this application;
[0018] Figure 6 This is a schematic diagram of the structure of the rotary wheel provided in some embodiments of this application;
[0019] Figure 7 This is a schematic diagram of the structure of the rotating shaft provided in some embodiments of this application;
[0020] Figure 8 This is a schematic diagram of the structure of the lever provided in some embodiments of this application;
[0021] Figure 9 This is a schematic diagram of the overall structure of the installation structure provided in some embodiments of this application. Figure 2 ;
[0022] Figure 10 This application is aboutFigure 9 CC section view;
[0023] Figure 11 This application is about Figure 10 Detailed view of point B;
[0024] Figure 12 This is a schematic diagram of the overall structure of an endoscope provided in some embodiments of this application.
[0025] In the diagram: 100-Rotating wheel, 110-Installation channel, 111-Limiting protrusion, 120-Assembly hole, 200-Rotating shaft, 210-Limiting groove, 220-Installation groove, 230-First sub-segment, 240-Second sub-segment, 250-Snap-fit protrusion, 300-Handle housing, 310-Installation through hole, 400-Connector, 500-Lever, 510-Snap-fit groove, 600-Installation part. Detailed Implementation
[0026] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0029] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".
[0030] This application provides a rotary mounting structure, referring to... Figures 1 to 3 As shown, the assembled structure of this installation structure can be referenced. Figure 1 and Figure 2 As shown, the disassembled structure of this installation structure can be referenced. Figure 3 As shown.
[0031] The mounting structure of the rotary wheel 100 includes a rotary wheel 100, a rotating shaft 200, a handle housing 300, and a lever 500. The rotary wheel 100 is located inside the handle housing 300. The rotary wheel 100 is provided with a mounting channel 110, see reference. Figure 4 and Figure 6 As shown. The handle housing 300 has two mounting through holes 310, see reference. Figure 5 As shown. The two mounting through holes 310 are located on both sides of the axial direction of the mounting channel 110. The mounting channel 110 and the two mounting through holes 310 are on the same straight line.
[0032] The rotating shaft 200 passes sequentially through one mounting through hole 310, the mounting channel 110, and the other mounting through hole 310, with both ends of the rotating shaft 200 located outside the handle housing 300. The rotating shaft 200 passes directly along the same straight line through the mounting channel 110 and the two mounting through holes 310, completing the initial connection between the rotating wheel 100 and the handle housing 300. After the rotating shaft 200 passes through the mounting channel 110, the rotating shaft 200 is in a limiting fit with the rotating wheel 100 in its circumferential direction. When the rotating shaft 200 rotates, it can drive the rotating wheel 100 to rotate synchronously.
[0033] The two ends of the rotating shaft 200 located outside the handle housing 300 are inserted and fixed to the lever 500. The positions of the lever 500 and the rotating shaft 200 are fixed, and the rotating shaft 200 is limited to the lever 500 in its circumferential direction. When the lever 500 rotates along the circumferential direction of the rotating shaft 200, it can drive the rotating shaft 200 to rotate together. The operator can control the rotation of the rotating wheel 100 by moving the lever 500.
[0034] In the embodiments provided in this application, when assembling the rotating wheel 100, the rotating wheel 100 is first placed in the handle housing 300, the mounting channel 110 is aligned with the mounting through hole 310, and then the rotating shaft 200 is sequentially inserted into the mounting through hole 310, the mounting channel 110, and the mounting through hole 310, connecting the rotating wheel 100 and the handle housing 300 together, completing the initial docking of the rotating wheel 100 and the handle housing 300. Both ends of the rotating shaft 200 are located outside the handle housing 300, and the lever 500 is directly inserted and fixed to both ends of the rotating shaft 200 to complete the fixation of the rotating shaft 200. Both ends of the rotating shaft 200 are fixed to the lever 500, preventing it from moving axially and detaching from the handle housing 300 and the rotating wheel 100, thus completing the assembly of the rotating wheel 100.
[0035] Throughout the assembly process of the rotary wheel 100, the assembly steps are simple, the conversion operation is easy to perform, and it is easy to learn, allowing for quick assembly of the rotary wheel 100. Furthermore, during the assembly process, the rotating shaft 200 can be directly inserted into the handle housing 300 along a straight line to connect the rotating shaft 200 and the rotary wheel 100 together. There is no need to repeatedly adjust the position of the rotating shaft 200 afterward; the axial position of the rotating shaft 200 can be fixed by using the lever 500 to fix it. Moreover, there is no need to use screws or other structures to fix the rotating shaft 200 to the lever 500, simplifying the assembly process of the rotary wheel 100 and improving its assembly efficiency.
[0036] In the embodiments provided in this application, the lever 500 is generally U-shaped, as can be referred to... Figure 3 As shown, its two ends are on the same straight line and facing each other, so that the lever 500 can be fixed to both ends of the rotating shaft 200 at the same time.
[0037] The lever 500 and the rotating shaft 200 can be fixed directly by plugging them together. The assembly structure and assembly process are very simple, which can effectively improve the overall assembly efficiency of the rotating wheel 100 and quickly assemble the rotating wheel 100.
[0038] Additionally, it should be noted that since the rotating shaft 200 needs to pass through the mounting through hole 310, the mounting channel 110 and the mounting through hole 310 in sequence along its axial direction, attention should be paid to the size matching of the rotating shaft 200, the mounting through hole 310 and the mounting channel 110 to avoid the situation where the rotating shaft 200 cannot pass through the three in sequence along its axial direction.
[0039] There are multiple ways to achieve the following: the rotating shaft 200 is limited to the rotating wheel 100 in its circumferential direction, and the rotating shaft 200 is limited to the lever 500 in its circumferential direction.
[0040] In some embodiments of this application, reference is made to Figure 4 As shown, it also includes a connector 400, and the rotating shaft 200 is further provided with an assembly hole 120 communicating with the mounting channel 110 and the external environment. The connector 400 is inserted and fixed into the assembly hole 120 and abuts against the rotating shaft 200 in the mounting channel 110, as shown in the reference. Figure 11 As shown, the rotating shaft 200 is fixed to the mounting channel 110 so that the rotating shaft 200 is limited to the rotating wheel 100 in its circumferential direction.
[0041] The connector 400 is fixed in the mounting hole 120 and abuts against the rotating shaft 200, which enhances the friction between the rotating shaft 200 and the connector 400. When the rotating shaft 200 rotates, the friction between the rotating shaft 200 and the connector 400 is sufficient to drive the connector 400 to rotate synchronously with the rotating shaft 200. At the same time, since the connector 400 is fixed to the mounting hole 120, which is located on the rotating wheel 100, the rotating shaft 200 can also drive the rotating wheel 100 to rotate through the connector 400 when it rotates, so as to achieve the purpose of limiting the fit between the rotating shaft 200 and the rotating wheel 100 in its circumferential direction. The rotating shaft 200 can smoothly drive the rotating wheel 100 to rotate.
[0042] Preferably, the inner wall of the mounting hole 120 is threaded, and the connector 400 is threadedly connected to the mounting hole 120, improving the installation stability of the connector 400 in the mounting hole 120. The connector 400 can be selected from bolts, screws, or other connection structures. The threaded connection also facilitates disassembly. In other embodiments, the fixing between the connector 400 and the mounting hole 120 can also be achieved directly using an interference fit.
[0043] The connecting piece 400 is used to press against the rotating shaft 200, thereby achieving the purpose of limiting the engagement between the rotating shaft 200 and the rotating wheel 100 in its circumferential direction. In a further embodiment of this application, one of a limiting groove 210 and a limiting protrusion 111 can be provided on the circumferential sidewall of the rotating shaft 200, as can be referred to. Figure 7 As shown in Figure 6, the inner wall of the mounting channel 110 is provided with either a limiting protrusion 111 or a limiting groove 210. When the rotating shaft 200 passes through the mounting channel 110, the limiting protrusion 111 is located in the limiting groove 210, and the rotating shaft 200 is limited and engaged with the mounting channel 110 in its circumferential direction.
[0044] The engagement of the limiting groove 210 and the limiting protrusion 111, as well as the abutting action of the connecting piece 400 against the rotating shaft 200, can fix the positions of the rotating shaft 200 and the rotating wheel 100 in the circumferential direction of the rotating shaft 200, so that the rotating shaft 200 and the rotating wheel 100 can rotate synchronously.
[0045] With the limiting groove 210 located in the mounting channel 110, the limiting protrusion 111 is located on the rotating shaft 200. The rotating shaft 200 needs to pass through two mounting through holes 310. The rotating shaft 200 and the handle housing 300 are in a rotatable fit. The inner wall of the mounting through hole 310 cannot interfere with the rotation of the rotating shaft 200. Therefore, the inner diameter of the mounting through hole 310 needs to be set to be larger to ensure that the rotating shaft 200 with the limiting protrusion 111 can also rotate normally in the mounting through hole 310.
[0046] When the limiting groove 210 is provided on the rotating shaft 200 and the limiting protrusion 111 is provided on the installation channel 110, please refer to Figure 6 andFigure 7 As shown, the limiting groove 210 is provided on the circumferential sidewall of the rotating shaft 200, and the limiting groove 210 extends along the axial direction of the rotating shaft 200 to one end face of the rotating shaft 200, so as to ensure that the end of the rotating shaft 200 can pass smoothly through the mounting channel 110. If the limiting groove 210 is only provided at the part of the rotating shaft 200 corresponding to the mounting channel 110, and the limiting groove 210 does not extend to either end of the rotating shaft 200, then the rotating shaft 200 will not be able to pass into the mounting channel 110.
[0047] In some preferred embodiments, the bottom of the limiting groove 210 is a planar structure, as shown in the reference. Figure 7 As shown, the end face of the connector 400 abuts against the bottom of the limiting groove 210, and there is a surface contact fit between the end face of the connector 400 and the bottom of the limiting groove 210. This increases the contact area between the connector 400 and the rotating shaft 200, thereby improving the clamping and fixing effect of the connector 400 on the rotating shaft 200.
[0048] Furthermore, preferably, an installation groove 220 is also provided at the bottom of the limiting groove 210, for reference. Figure 7 As shown, the end of the connector 400 is inserted into the mounting groove 220. The connector 400 is limited and matched with the groove wall of the mounting groove 220 in the axial direction of the rotating shaft 200. The matching between the connector 400 and the mounting groove 220 determines the mounting position of the rotating shaft 200 in the axial direction and positions the rotating shaft 200.
[0049] In some preferred embodiments, the limiting groove 210 extends through the circumferential sidewall of the rotating shaft 200 along its width direction, as shown in the reference. Figure 7 As shown. The length direction of the limiting groove 210 is the axial direction of the rotating shaft 200, and its width direction is perpendicular to the length direction. Since the limiting groove 210 penetrates the circumferential sidewall of the rotating shaft 200 along its width direction, and the limiting groove 210 also extends to one end face of the rotating shaft 200, the limiting groove 210 can only have one groove wall, which also makes the space of the limiting groove 210 as large as possible. The limiting protrusion 111 set on the inner wall of the corresponding installation channel 110 can also be as large as possible. The limiting effect of the limiting protrusion 111 and the limiting groove 210 is better. Moreover, the rotating shaft 200 is relatively small, so this setting makes it easier to process the rotating shaft 200.
[0050] In some embodiments of this application, reference is made to Figure 7As shown, the rotating shaft 200 includes a first segment 230 and a second segment 240 distributed along its axial direction. A limiting groove 210 is provided in the first segment 230 and extends from one end of the second segment 240 to the other end. The first segment 230 passes through one of the mounting through holes 310, and the second segment 240 passes through the mounting channel 110 and another mounting through hole 310 in sequence. The first segment 230 does not have a limiting groove 210, and its radial dimension is larger than that of the second segment 240. After the rotating shaft 200 passes through the handle housing 300 and the rotating wheel 100, due to the larger radial dimension of the first segment 230, the limiting protrusion 111 provided on the inner wall of the mounting channel 110 engages with the first segment 230 in the axial direction of the rotating shaft 200 to prevent the first segment 230 from extending into the mounting channel 110. The first segment 230 cannot be inserted into the installation channel 110. When the rotating shaft 200 is inserted, the positioning of the rotating shaft 200 is completed at the same time, so that when the connector 400 is inserted into the assembly hole 120 later, the end of the connector 400 can be directly inserted into the installation groove 220.
[0051] Furthermore, the first segment 230 passes through the mounting through hole 310. Since the first segment 230 does not have a limiting groove 210, its circumferential sidewall can contact and cooperate with the inner wall of the mounting through hole 310, supporting each other and stabilizing the relative position between the rotating shaft 200 and the handle housing 300, thus preventing the rotating shaft 200 from changing its position relative to the handle housing 300 in the radial direction of the mounting through hole 310.
[0052] The limiting engagement between the rotating shaft 200 and the lever 500 can be directly achieved through the connection structure between the lever 500 and the rotating shaft 200. (Reference) Figure 7 As shown, both ends of the rotating shaft 200 have snap-fit protrusions 250. (Reference) Figure 8 As shown, the lever 500 has locking grooves 510 at both ends corresponding to the locking protrusions 250. The locking protrusions 250 engage with the locking grooves 510 corresponding to the lever 500, and the locking protrusions 250 can cooperate with the locking grooves 510 to prevent the locking protrusions 250 from rotating in the circumferential direction of the rotating shaft 200 within the locking grooves 510, thereby achieving a limiting engagement between the rotating shaft 200 and the lever 500.
[0053] In some specific embodiments, the snap-fit groove 510 has a groove bottom, and the end face of the snap-fit protrusion 250 abuts against the groove bottom. The lever 500 is used to fix the position of the rotating shaft 200 in the axial direction. A gasket may be provided at the groove bottom of the snap-fit groove 510 to improve the connection stability between the rotating shaft 200 and the lever 500.
[0054] In some other embodiments, the snap-fit groove 510 may be a through groove without a bottom. The radial dimension of the portion of the shaft 200 adjacent to the snap-fit protrusion 250 is larger than that of the snap-fit protrusion 250. This portion of the shaft 200 cannot be inserted into the snap-fit groove 510. The axial installation position of the shaft 200 is limited by the limiting cooperation between this portion of the shaft 200 and the lever 500 around the snap-fit groove 510.
[0055] Furthermore, the size of the snap-fit protrusion 250 must not affect the passage of the shaft 200 through the mounting through hole 310 and the mounting channel 110. Generally, the radial dimension of the snap-fit protrusion 250 needs to be smaller than the radial dimension of the shaft 200 after the limit groove 210 is provided. The portion of the shaft 200 adjacent to the snap-fit protrusion 250 can abut against the end face of the lever 500, further restricting the axial installation position of the shaft 200.
[0056] In some embodiments, along the axial direction of the mounting channel 110, both ends of the rotating wheel 100 abut against the inner wall of the handle housing 300, for reference. Figures 9 to 11 As shown, the axial installation position of the wheel 100 within the handle housing 300 is stable and not easily moved, which facilitates the alignment of the mounting through hole 310 and the mounting channel 110, and also facilitates the subsequent adjustment of the bending angle of the insertion part 600 by pulling the traction rope.
[0057] This application also provides an endoscope handle, including the rotary mounting structure provided in any of the above embodiments. The handle housing 300 also includes other components, such as a suction valve.
[0058] This application also provides an endoscope, including the endoscope handle provided in any of the above embodiments. One end of the insertion part 600 is fixed to the handle housing 300. One end of the traction rope is connected to the distal end of the insertion part 600, and the other end is fixed to the rotating wheel 100. By moving the lever 500, the rotating shaft 200 and the rotating wheel 100 are driven to rotate, thereby pulling the traction rope and driving the distal end of the insertion part 600 to bend.
[0059] The endoscopes involved in the embodiments of this application may be bronchoscopes, pyeloscopes, esophagoscopes, gastroscopes, colonoscopes, otoscopes, rhinoscopes, oral endoscopes, laryngoscopes, colposcopes, laparoscopes, arthroscopes, etc. The embodiments of this application do not specifically limit the types of endoscopes.
[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0061] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A rotating wheel mounting structure, characterized in that, It includes a rotating wheel (100), a rotating shaft (200), a handle housing (300), and a lever (500). The rotating wheel (100) is located inside the handle housing (300). The rotating wheel (100) is provided with an installation channel (110). The handle housing (300) is provided with two installation through holes (310) located on both sides of the installation channel (110) in the axial direction. The rotating shaft (200) passes through one of the mounting through holes (310), the mounting channel (110) and the other mounting through hole (310) in sequence. Both ends of the rotating shaft (200) are located outside the handle housing (300) and are inserted and fixed to the lever (500). The rotating shaft (200) is in a limiting engagement with the rotating wheel (100) in its circumferential direction and the lever (500) in its circumferential direction.
2. The wheel mounting structure according to claim 1, characterized in that, The rotating wheel mounting structure also includes a connector (400). The rotating wheel (100) is also provided with an assembly hole (120) that connects the mounting channel (110) and the external environment. The connector (400) is inserted and fixed into the assembly hole (120) and abuts against the rotating shaft (200) in the mounting channel (110) to fix the rotating shaft (200) in the mounting channel (110), so that the rotating shaft (200) is in a limiting fit with the rotating wheel (100) in its circumferential direction.
3. The wheel mounting structure according to claim 2, characterized in that, The inner wall of the assembly hole (120) is provided with threads, and the connector (400) is threadedly connected to the assembly hole (120).
4. The wheel mounting structure according to claim 2, characterized in that, The circumferential sidewall of the rotating shaft (200) is provided with one of a limiting groove (210) and a limiting protrusion (111), and the inner wall of the mounting channel (110) is provided with the other of the limiting protrusion (111) and the limiting groove (210). When the rotating shaft (200) passes through the mounting channel (110), the limiting protrusion (111) is located in the limiting groove (210), and the rotating shaft (200) is limited and engaged with the mounting channel (110) in its circumferential direction.
5. The wheel mounting structure according to claim 4, characterized in that, The limiting groove (210) is disposed on the circumferential sidewall of the rotating shaft (200), and the limiting groove (210) extends along the axial direction of the rotating shaft (200) to one end face of the rotating shaft (200). The bottom of the limiting groove (210) is a planar structure. The end face of the connector (400) abuts against the bottom of the limiting groove (210), and the end face of the connector (400) and the bottom of the limiting groove (210) are in surface contact fit.
6. The wheel mounting structure according to claim 5, characterized in that, The bottom of the limiting groove (210) is provided with an installation groove (220), and the end of the connector (400) is inserted into the installation groove (220). The connector (400) is in a limiting fit with the groove wall of the installation groove (220) in the axial direction of the rotating shaft (200). And / or, the limiting groove (210) extends through the circumferential sidewall of the rotating shaft (200) along its width direction.
7. The wheel mounting structure according to claim 4, characterized in that, The rotating shaft (200) includes a first sub-segment (230) and a second sub-segment (240) distributed along its axial direction. The limiting groove (210) is disposed in the second sub-segment (240) and extends from one end of the second sub-segment (240) to the other end. The first sub-segment (230) passes through one of the mounting through holes (310), and the second sub-segment (240) passes through the mounting channel (110) and the other mounting through hole (310) in sequence. The first sub-segment (230) and the limiting protrusion (111) on the inner wall of the mounting channel (110) are engaged in a limiting fit in the axial direction of the rotating shaft (200) to prevent the first sub-segment (230) from extending into the mounting channel (110).
8. The wheel mounting structure according to claim 1, characterized in that, Both ends of the rotating shaft (200) have snap-fit protrusions (250), which snap into the corresponding snap-fit grooves (510) of the lever (500). The snap-fit protrusions (250) can cooperate with the snap-fit grooves (510) to prevent the snap-fit protrusions (250) from rotating in the snap-fit grooves (510) along the circumference of the rotating shaft (200). And / or, along the axial direction of the mounting channel (110), both ends of the wheel (100) abut against the inner wall of the handle housing (300).
9. An endoscope handle, characterized in that, Includes the wheel mounting structure as described in any one of claims 1-8.
10. An endoscope, characterized in that, Includes the endoscope handle as described in claim 9.