Self-locking handle and endoscope system

Abstract

The invention discloses a self-locking handle and an endoscope system, and relates to the technical field of endoscopes. The self-locking handle comprises a shell assembly, a rotating wheel and a clutch assembly. The shell assembly is provided with an assembling cavity; the runner comprises a runner body and a handle which are connected, the runner body is rotationally mounted in the assembly cavity, and one end, away from the runner body, of the handle protrudes relative to one side, away from the assembly cavity, of the shell assembly; the clutch assembly is connected between the shell assembly and the rotating wheel, the clutch assembly is provided with an operation part, the operation part is installed in the handle and is exposed relative to the side, away from the rotating wheel body, of the handle, and the clutch assembly has a first state and a second state; when the clutch assembly is in the first state, the rotating wheel is locked relative to the shell assembly; and when the clutch assembly is in the second state, the rotating wheel is unlocked relative to the shell assembly. By means of the self-locking handle, the operation convenience can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and in particular to a self-locking handle and an endoscope system. Background Art

[0002] During the use of the endoscope, the handle needs to be used to drive the pull wire to move in order to adjust the bending direction and angle of the endoscope body. After the adjustment is completed, the handle is used to lock it.

[0003] However, the handle of the existing endoscope requires the operator to use both hands to respectively realize the rotation adjustment and self-locking control of the rotating wheel, which brings inconvenience to the user's operation. Summary of the invention

[0004] The present application provides a self-locking handle and endoscope system, which can facilitate the user to turn and self-lock the rotating wheel with one hand, thereby improving the convenience of operation.

[0005] The present application provides a self-locking handle, which is applied to an endoscope system. The self-locking handle includes:

[0006] A housing assembly having an assembly cavity;

[0007] A rotating wheel, comprising a rotating wheel body and a handle connected to each other, wherein the rotating wheel body is rotatably mounted in the assembly cavity, and an end of the handle away from the rotating wheel body protrudes relative to a side of the housing assembly away from the assembly cavity;

[0008] A clutch assembly connected between the housing assembly and the rotating wheel, the clutch assembly having an operating portion, the operating portion being installed in the handle and exposed relative to a side of the handle away from the rotating wheel body, the clutch assembly having a first state and a second state;

[0009] When the clutch assembly is in the first state, the rotating wheel is locked relative to the housing assembly;

[0010] When the clutch assembly is in the second state, the rotating wheel is unlocked relative to the housing assembly.

[0011] In some possible implementations, the clutch assembly includes a first clutch member and a second clutch member, the first clutch member is fixedly connected to the housing assembly, the second clutch member is slidably arranged relative to the rotating wheel, and in the rotation direction of the rotating wheel, the second clutch member is limitedly connected to the rotating wheel;

[0012] When the clutch assembly is in the first state, the first clutch member is connected to the second clutch member;

[0013] When the clutch assembly is in the second state, the first clutch member is separated from the second clutch member;

[0014] The second clutch member includes the operating portion, and the operating portion is located at an end of the second clutch member away from the first clutch member.

[0015] In some possible implementations, the first clutch member includes a gear, and the second clutch member further includes a transmission rod and a clutch ring, the transmission rod is connected between the clutch ring and the operating portion, the clutch ring is disposed around the circumference of the gear, and a side of the clutch ring facing the gear is provided with meshing teeth adapted to the gear;

[0016] When the clutch assembly is in the first state, the meshing teeth are meshed and connected with the gear;

[0017] When the clutch assembly is in the second state, the meshing teeth are disengaged from the gear.

[0018] In some possible implementations, the meshing teeth are located at an end of the clutch ring away from the transmission rod.

[0019] In some possible implementations, the first clutch member includes a sleeve, and the second clutch member further includes a transmission rod and a clutch ring, the transmission rod is connected between the clutch ring and the operating portion, the clutch ring is disposed around the sleeve, and a rough surface is configured on a side of the clutch ring facing the sleeve;

[0020] When the clutch assembly is in the first state, the rough surface is frictionally engaged with the sleeve;

[0021] When the clutch assembly is in the second state, the rough surface is separated from the sleeve.

[0022] In some possible implementations, the second clutch member is slidably mounted in the rotating wheel, and a mounting cavity for accommodating the second clutch member is provided in the rotating wheel;

[0023] The clutch ring comprises two oppositely arranged straight structure segments, the straight structure segments are parallel to the sliding direction of the second clutch member, and the sides of the two straight structure segments facing away from each other are both slidably fitted with the inner wall of the installation cavity.

[0024] In some possible implementations, the housing assembly includes a first housing and a second housing, and the first housing and the second housing cooperate to form the assembly cavity;

[0025] A connecting shaft is protruded from one side of the first housing toward the second housing, and the first clutch member is sleeved on the connecting shaft and has an interference fit with the connecting shaft;

[0026] The friction resistance between the first clutch member and the connecting shaft is greater than the force applied to the rotating wheel by the pull wire in the endoscope system.

[0027] In some possible embodiments, the clutch assembly further includes an elastic reset member, which is connected between the rotating wheel and the second clutch member, and is used to drive the clutch assembly to maintain the first state and drive the clutch assembly to switch from the second state to the first state.

[0028] In some possible implementations, a receiving groove is provided at one end of the handle away from the rotating wheel body, and a step surface opposite to the operating portion is provided at one end of the receiving groove close to the rotating wheel body;

[0029] The elastic reset member is arranged in the accommodating groove, one end of the elastic reset member abuts against the operating portion, and the other end of the elastic reset member abuts against the step surface;

[0030] When the clutch assembly is in the first state, the elastic reset member is in a natural extension state or a compression state.

[0031] In addition, the present application also provides an endoscope system, including the self-locking handle provided in the above embodiments.

[0032] Beneficial effects of the present application: In the self-locking handle provided by the present application, a clutch assembly is arranged between the rotating wheel and the housing assembly to realize the control of locking and unlocking the rotating wheel. The operating part of the clutch assembly is installed in the handle of the rotating wheel, and the user can respectively operate the clutch assembly and the rotating wheel with one hand to realize unlocking and locking of the rotating wheel, and to turn the rotating wheel to rotate, thereby reducing the user's operation steps and improving the convenience of user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the exploded structure of the self-locking handle in some embodiments is shown;

[0035] Figure 2 Shows a schematic cross-sectional structure diagram of a self-locking handle in some embodiments;

[0036] Figure 3A schematic cross-sectional structure diagram of a self-locking handle when the clutch assembly is in a first state in some embodiments is shown;

[0037] Figure 4 A schematic cross-sectional structure diagram of a self-locking handle when the clutch assembly is in the second state in some embodiments is shown;

[0038] Figure 5 A schematic cross-sectional structure diagram of a self-locking handle when the clutch assembly is in a first state in other embodiments is shown;

[0039] Figure 6 A schematic cross-sectional structure diagram of a self-locking handle when the clutch assembly is in a first state in some other embodiments is shown;

[0040] Figure 7 A schematic cross-sectional structure diagram of the self-locking handle when the clutch assembly is in the second state in some other embodiments is shown.

[0041] Description of main component symbols:

[0042] 1000-Self-locking handle;

[0043] 100-housing assembly; 101-assembly cavity; 102-travel groove; 110-first housing; 111-connecting shaft; 120-second housing;

[0044] 200-rotor; 201-installation cavity; 202-accommodation groove; 203-step surface; 204-embedded groove; 205-opening structure; 210-rotor body; 211-wire groove; 220-handle; 221-connecting rod; 222-executing part;

[0045] 300-clutch assembly; 301-first state; 302-second state; 310-first clutch member; 311-gear; 312-sleeve; 320-second clutch member; 321-clutch ring; 3211-straight structure segment; 3212-meshing teeth; 3213-rough surface; 322-transmission rod; 323-operating part; 330-elastic reset member. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] like Figure 1 As shown, a self-locking handle 1000 is provided in the embodiment and can be applied to an endoscope system to realize unlocking and locking of a pull line in the endoscope system, and further realize locking and unlocking of a bending angle and a bending direction of the endoscope body.

[0052] like Figures 1 to 4 As shown, the self-locking handle 1000 includes a housing assembly 100 , a rotating wheel 200 and a clutch assembly 300 .

[0053] The housing assembly 100 includes an assembly cavity 101. The rotating wheel 200 includes a rotating wheel body 210 and a handle 220 connected to each other. The rotating wheel body 210 is disposed in the assembly cavity 101 and is rotatably connected to the housing assembly 100, that is, the rotating wheel body 210 is rotatably installed in the assembly cavity 101. In an embodiment, the pull wire in the endoscope system can be wound around the circumference of the rotating wheel body 210.

[0054] One end of the handle 220 may be connected to the wheel body 210, and the end of the handle 220 away from the wheel body 210 may be inserted into the housing assembly 100 and exposed relative to the side of the housing assembly 100 away from the assembly cavity 101, that is, the end of the handle 220 away from the wheel body 210 is exposed outside the housing assembly 100, so that the operator can touch it to turn the wheel 200. In some embodiments, the wheel body 210 and the handle 220 may be an integrated structure.

[0055] In other embodiments, the rotating wheel body 210 and the handle 220 may be fixedly connected by bonding, hot-melt connection or snap connection.

[0056] The clutch assembly 300 is connected between the housing assembly 100 and the rotating wheel 200. The clutch assembly 300 can have a first state 301 and a second state 302. When the clutch assembly 300 is in the first state 301, the rotating wheel 200 can be locked relative to the housing assembly 100, that is, the clutch assembly 300 can prevent the rotating wheel 200 from rotating relative to the housing assembly 100. When the clutch assembly 300 is in the second state 302, the rotating wheel 200 can be unlocked relative to the housing assembly 100, and the rotating wheel 200 can rotate relative to the housing assembly 100.

[0057] In addition, the clutch assembly 300 further includes an operating portion 323, which can be installed in the handle 220 and exposed on a side of the handle 220 away from the rotating wheel body 210. Therefore, the user can easily touch the operating portion 323 to operate the clutch assembly 300, that is, the user can switch the clutch assembly 300 between the first state 301 and the second state 302 through the operating portion 323.

[0058] When it is necessary to rotate the rotating wheel 200 to adjust the bending angle and bending direction of the mirror body in the endoscope system, the user can act on the operating part 323 to switch the clutch assembly 300 from the first state 301 to the second state 302 to unlock the rotating wheel 200 and the housing assembly 100, and at the same time push the handle 220 to rotate the rotating wheel 200. During the rotation of the rotating wheel 200, the rotating wheel body 210 can drive the pull line to move to adjust the bending angle and bending direction of the mirror body. When the adjustment is in place, the clutch assembly 300 can be switched from the second state 302 to the first state 301 to lock the rotating wheel 200 relative to the housing assembly 100, thereby locking the bending angle and bending direction of the mirror body.

[0059] In the embodiment of the present application, the operating part 323 of the clutch assembly 300 is installed in the handle 220 of the rotating wheel 200. The user can operate the clutch assembly 300 and the rotating wheel 200 with one hand to unlock and lock the rotating wheel 200, and to rotate the rotating wheel 200, thereby reducing the user's operating steps and improving the convenience of user operation.

[0060] like Figure 1 and Figure 2 As shown, the housing assembly 100 includes a first housing 110 and a second housing 120, which can cooperate to form an assembly cavity 101. The first housing 110 and the second housing 120 can be fixedly connected by means of a snap connection or a screw connection.

[0061] In some embodiments, a connecting shaft 111 is protruded from one side of the first housing 110 toward the second housing 120. The rotating wheel body 210 is rotatably sleeved on the connecting shaft 111, and the rotating wheel body 210 is coaxial with the connecting shaft 111, that is, the rotation axis of the rotating wheel body 210 coincides with the axis of the connecting shaft 111. When the rotating wheel 200 is rotated, the rotating wheel body 210 can rotate around the connecting shaft 111.

[0062] like Figure 1 As shown, in some embodiments, the rotating wheel body 210 may be roughly in a disc-shaped structure. A wire groove 211 may be provided on the circumference of the rotating wheel body 210, and the wire groove 211 may be extended around the circumference of the rotating wheel body 210. When the self-locking handle 1000 is applied to an endoscope system, the pull wire may be passed through the housing assembly 100 and wound around the circumference of the rotating wheel body 210, and the part of the pull wire located on the circumference of the rotating wheel body 210 may be accommodated in the wire groove 211, and the wire groove 211 may provide a limiting function for the pull wire to prevent the pull wire from arbitrarily detaching from the rotating wheel body 210.

[0063] like Figures 2 to 4As shown, in some embodiments, the handle 220 may include an integrated connecting rod portion 221 and an execution portion 222. The connecting rod portion 221 may be arranged to extend radially along the wheel body 210. One end of the connecting rod portion 221 may be connected to the wheel body 210, and one end of the connecting rod portion 221 away from the wheel body 210 may be inserted into the housing assembly 100, and may protrude relative to the side of the housing assembly 100 away from the assembly cavity 101.

[0064] The actuator 222 may be connected to one end of the connecting rod 221 away from the rotating wheel body 210. Accordingly, the actuator 222 may be located outside the housing assembly 100, which is convenient for the user to reach in order to turn the rotating wheel 200. In some embodiments, the actuator 222 may also be a rod-shaped structure, and the actuator 222 may be perpendicular to the connecting rod 221. Further, the actuator 222 may be parallel to the rotation axis of the rotating wheel body 210. Thus, a larger operating surface may be provided for the user, which is convenient for the user to push the actuator 222, and drive the connecting rod 221 and the rotating wheel body 210 to rotate through the actuator 222.

[0065] like Figure 1 and Figure 3 As shown, a travel groove 102 is provided on the circumference of the housing assembly 100 for the connecting rod 221 to pass through. The travel groove 102 may have a certain extension length along the circumference of the housing assembly 100, and may provide a rotation travel limit for the rotating wheel 200, thereby preventing damage to the mirror body caused by excessive rotation of the rotating wheel 200, and protecting the mirror body. In some embodiments, the travel groove 102 may be provided at the connection between the first housing 110 and the second housing 120.

[0066] like Figures 1 to 4 As shown, in some embodiments, the clutch assembly 300 can be installed in the rotating wheel 200. The rotating wheel 200 can be provided with a mounting cavity 201 for accommodating the clutch assembly 300. The mounting cavity 201 can extend to the handle 220 and communicate with the external environment. Accordingly, the side of the execution part 222 away from the connecting rod part 221 can be provided with an opening structure 205 communicating with the mounting cavity 201.

[0067] In some embodiments, the clutch assembly 300 may include a first clutch member 310 and a second clutch member 320. The first clutch member 310 may be sleeved on the peripheral side of the connecting shaft 111 and may be fixedly arranged relative to the housing assembly 100. The second clutch member 320 may be slidably installed in the rotating wheel 200 and connected to the rotating wheel 200. The sliding direction of the second clutch member 320 may be parallel to the radial direction of the rotating wheel body 210. In the embodiment, the first clutch member 310 may be clutched and matched with the second clutch member 320.

[0068] When the clutch assembly 300 is in the first state 301, the second clutch member 320 can be connected to the first clutch member 310, so that the rotating wheel 200 can be locked relative to the housing assembly 100 to prevent the rotating wheel 200 from rotating relative to the housing assembly 100. When the clutch assembly 300 is in the second state 302, the second clutch member 320 is separated from the first clutch member 310, so that the rotating wheel 200 and the housing assembly 100 can be unlocked, and the rotating wheel 200 can rotate relative to the housing assembly 100, so that the bending angle and bending direction of the mirror body can be adjusted.

[0069] In some embodiments, the first clutch 310 can be fixedly connected to the connecting shaft 111 by interference fit. And the interference fit between the first clutch 310 and the connecting shaft 111 can make the friction resistance between the first clutch 310 and the connecting shaft 111 greater than the force applied by the pull line to the rotating wheel 200. Therefore, when the second clutch 320 is connected to the first clutch 310, under the action of the friction resistance between the first clutch 310 and the rotating wheel 200, the pull line can be prevented from driving the rotating wheel 200 to rotate, thereby achieving the locking of the rotating wheel 200 and preventing the bending angle and bending direction of the mirror body from changing at will.

[0070] In other embodiments, the first clutch member 310 and the connecting shaft 111 may also be fixedly connected by bonding, hot-melt connection, or the like.

[0071] like Figures 1 to 4 As shown, in some embodiments, the first clutch member 310 may be a gear 311. The gear 311 may be fixedly connected to the connecting shaft 111 and coaxially arranged with the connecting shaft 111.

[0072] In some embodiments, the second clutch member 320 may include a clutch ring 321 , a transmission rod 322 , and an operating portion 323 . The clutch ring 321 may be an annular structure, and the clutch ring 321 may be disposed around the circumference of the gear 311 .

[0073] In some embodiments, the cross section of the clutch ring 321 perpendicular to the axial direction of the connecting shaft 111 may be a U-shaped structure, and accordingly, the clutch ring 321 may include two oppositely arranged straight structure segments 3211. The portion of the assembly cavity 101 located in the rotor body 210 may be roughly rectangular. The two straight structure segments 3211 in the clutch ring 321 that are away from each other are both in contact with the inner wall of the installation cavity 201. Thus, the clutch ring 321 can be restricted from rotating relative to the rotor body 210, that is, the relative rotation between the second clutch member 320 and the rotor 200 can be restricted.

[0074] In an embodiment, the transmission rod 322 may extend in the radial direction of the rotating wheel body 210. One end of the transmission rod 322 may be connected to the clutch ring 321, and the end of the transmission rod 322 away from the clutch ring 321 may be inserted into the handle 220. The side wall of the transmission rod 322 may also fit with the inner wall of the mounting cavity 201 located at the handle 220 section, which may further limit the relative rotation between the second clutch member 320 and the rotating wheel 200. In some embodiments, the transmission rod 322 may be an integral structure with the clutch ring 321.

[0075] In other embodiments, the transmission rod 322 may also be fixedly connected to the clutch ring 321 by means of threaded connection, interference fit, or gluing.

[0076] In an embodiment, an embedding groove 204 connecting the opening structure 205 and the installation cavity 201 may be provided in the execution part 222. The operating part 323 may be a rod-shaped structure parallel to the execution part 222, and the operating part 323 may be embedded in the embedding groove 204 of the execution part 222. One side of the operating part 323 may be connected to an end of the transmission rod 322 away from the clutch ring 321, and the other side of the operating part 323 may protrude relative to the opening structure 205 and be exposed to the external environment. In the process of operating the second clutch 320, the embedding groove 204 may also provide a corresponding guiding function for the operating part 323, thereby reducing the probability of the second clutch 320 being stuck or stuck. In some embodiments, the operating part 323 may be fixedly connected to the transmission rod 322 by means of gluing or threaded connection.

[0077] like Figures 1 to 4 As shown, in some embodiments, one end of the clutch ring 321 away from the transmission rod 322 may be configured with a meshing tooth 3212 , which may be located on the side of the clutch ring 321 facing the gear 311 , and the meshing tooth 3212 may be matched with the gear 311 .

[0078] When the clutch assembly 300 is in the first state 301, the meshing teeth 3212 of the clutch ring 321 can be meshed with the gear 311, thereby preventing the second clutch member 320 from rotating relative to the first clutch member 310, and further preventing the rotating wheel 200 from rotating relative to the housing assembly 100. When the clutch assembly 300 is in the second state 302, the meshing teeth 3212 of the clutch ring 321 can be separated from the gear 311, and the locking of the second clutch member 320 by the first clutch member 310 can be released, so that the rotating wheel 200 can drive the second clutch member 320 to rotate relative to the housing assembly 100, so as to adjust the bending angle and bending direction of the mirror body.

[0079] In some embodiments, the clutch assembly 300 further includes an elastic reset member 330, and the elastic reset member 330 can be connected between the second clutch member 320 and the rotating wheel 200. In the embodiment, the elastic reset member 330 can be used to drive the second clutch member 320 to maintain a state of being connected to the first clutch member 310, and the elastic reset member 330 can be used to drive the second clutch member 320 to connect with the first clutch member 310. That is, under the action of the elastic reset member 330, the clutch assembly 300 can be maintained in the second state 302, and the clutch assembly 300 can be driven to switch from the second state 302 to the first state 301.

[0080] In some embodiments, a receiving groove 202 is further provided at one end of the handle 220 away from the rotating wheel body 210, and the receiving groove 202 can be connected between the installation cavity 201 and the embedding groove 204. In addition, the inner diameter of the receiving groove 202 can be larger than the inner diameter of the installation cavity 201 at a section of the handle 220, so that a step surface 203 facing the opening structure 205 can be formed at the connection between the receiving groove 202 and the installation cavity 201.

[0081] In some embodiments, a spring may be used as the elastic reset member 330. The elastic reset member 330 may be disposed in the receiving groove 202 and sleeved on the peripheral side of the transmission rod 322. In an embodiment, one end of the elastic reset member 330 may abut against the step surface 203, and the other end of the elastic reset member 330 may abut against a side of the operating portion 323 facing the clutch ring 321. When the clutch assembly 300 is in the first state 301, the elastic reset member 330 may be in a naturally extended state or a compressed state.

[0082] In other embodiments, the elastic reset member 330 may also be an elastic structure such as a spring sheet or a flexible column.

[0083] In other embodiments, one end of the elastic reset member 330 may be fixedly connected to one end of the clutch ring 321 away from the transmission rod 322, and the other end of the elastic reset member 330 may be fixedly connected to one end of the rotating wheel body 210 away from the handle 220. When the clutch assembly 300 is in the first state 301, the elastic reset member 330 may be in a naturally extended state or a compressed state.

[0084] In other embodiments, one end of the elastic reset member 330 may be fixedly connected to one end of the clutch ring 321 close to the transmission rod 322, and the other end of the elastic reset member 330 may be fixedly connected to one end of the rotating wheel body 210 close to the handle 220. When the clutch assembly 300 is in the first state 301, the elastic reset member 330 may be in a naturally extended state or a stretched state.

[0085] When the bending angle and bending direction of the mirror body need to be adjusted, the user can hold the actuator 222 of the rotating wheel 200 and press the operating part 323 of the second clutch 320 to overcome the force of the elastic reset member 330, so that the meshing teeth 3212 of the second clutch 320 are separated from the gear 311, that is, the clutch assembly 300 is switched from the first state 301 to the second state 302. After that, the user can turn the rotating wheel 200 to rotate, and can drive the mirror body to adjust the bending angle and bending direction through the pull line. When the adjustment is in place, the user can release the operating part 323 of the second clutch 320 and the actuator 222 of the rotating wheel 200. The second clutch 320 can be reset under the elastic force of the elastic reset member 330, so that the meshing teeth 3212 of the clutch ring 321 are meshed and connected with the gear 311, so that the rotating wheel 200 is locked relative to the housing assembly 100, and the rotating wheel 200 can be maintained in the adjusted position under the action of the clutch assembly 300. During this process, the user can operate the clutch assembly 300 and the rotating wheel 200 at the same time. When the user releases the actuator 222, the rotating wheel 200 can also be locked by the clutch assembly 300. On the one hand, the user's operation steps can be reduced, and on the other hand, the user can also realize one-handed operation, which greatly improves the convenience of user operation.

[0086] In the embodiment, the gear 311 cooperates with the meshing teeth 3212 to realize multi-gear adjustment of the rotating wheel 200, that is, to realize multi-gear adjustment of the self-locking handle 1000, so as to meet different needs of users.

[0087] like Figure 5 As shown, in other embodiments, the meshing teeth 3212 may also be disposed at one end of the clutch ring 321 close to the transmission rod 322. One end of the elastic reset member 330 may be fixedly connected to the operating portion 323, and the other end of the elastic reset member 330 may be fixedly connected to the step surface 203. When the clutch assembly 300 is in the first state 301, the elastic reset member 330 may be in a naturally extended or stretched state.

[0088] like Figure 6 and Figure 7As shown, in other embodiments, the first clutch member 310 may include a sleeve 312, and the sleeve 312 may be fixedly sleeved on the connecting shaft 111 by interference fit, bonding or hot melt connection. Among them, the side of the sleeve 312 away from the connecting shaft 111 may be a cylindrical surface structure. The side of the clutch ring 321 facing the sleeve 312 may be configured with a rough surface 3213, and the rough surface 3213 may be located at an end of the clutch ring 321 away from the transmission rod 322. When the clutch assembly 300 is in the first state 301, the rough surface 3213 may be in frictional contact with the surface of the side of the sleeve 312 away from the connecting shaft 111, and the friction resistance between the rough surface 3213 and the sleeve 312 may be greater than the force applied by the pull line on the rotating wheel 200, thereby preventing the second clutch member 320 and the rotating wheel 200 from rotating freely relative to the housing assembly 100. When the user presses the second clutch 320, the rough surface 3213 can be separated from the sleeve 312, thereby unlocking the rotating wheel 200. The user can turn the rotating wheel 200 to adjust the bending angle and bending direction of the mirror body, and can achieve stepless adjustment of the rotation angle of the rotating wheel 200, that is, stepless adjustment of the bending angle of the mirror body.

[0089] In other embodiments, the clutch assembly 300 may also be disposed on the side of the rotating wheel 200 facing the first housing 110. A mounting groove may be provided on the side of the rotating wheel 200 facing the first housing 110. Along the axial direction of the connecting shaft 111, at least a portion of the clutch assembly 300 is inserted into the mounting groove.

[0090] In summary, the self-locking handle 1000 provided by the present application can simplify the user's operating steps, facilitate the user to achieve one-handed operation, and improve the convenience of user operation. At the same time, in the self-locking handle 1000 provided by the present application, the rotating wheel body 210 and the handle are integrated into an integrated structure (that is, the rotating wheel and the adjustment handle in the prior art are integrated into one), which reduces the number of parts of the self-locking handle 1000, simplifies the structure of the self-locking handle 1000, and at the same time, it can also simplify the assembly steps of the self-locking handle 1000, improve the assembly efficiency of the self-locking handle 1000, and facilitate the industrial production of the self-locking handle and improve production capacity.

[0091] The embodiment also provides an endoscope system, which may include a pull wire, a mirror body, and a self-locking handle 1000 provided in the embodiment. One end of the pull wire may be connected to the mirror body, and the other end of the pull wire may be wound around the circumference of the rotating wheel body 210. During use, the user can adjust and lock the bending angle and bending direction of the mirror body through the self-locking handle 1000.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A self-locking handle, characterized in that: Applied to an endoscope system, the self-locking handle comprises: A housing assembly having an assembly cavity; A rotating wheel, comprising a rotating wheel body and a handle connected to each other, wherein the rotating wheel body is rotatably mounted in the assembly cavity, and an end of the handle away from the rotating wheel body protrudes relative to a side of the housing assembly away from the assembly cavity; A clutch assembly connected between the housing assembly and the rotating wheel, the clutch assembly having an operating portion, the operating portion being installed in the handle and exposed relative to a side of the handle away from the rotating wheel body, the clutch assembly having a first state and a second state; When the clutch assembly is in the first state, the rotating wheel is locked relative to the housing assembly; When the clutch assembly is in the second state, the rotating wheel is unlocked relative to the housing assembly.

2. The self-locking handle according to claim 1, characterized in that: The clutch assembly comprises a first clutch member and a second clutch member, wherein the first clutch member is fixedly connected to the housing assembly, and the second clutch member is slidably arranged relative to the rotating wheel, and in the rotation direction of the rotating wheel, the second clutch member is limitedly connected to the rotating wheel; When the clutch assembly is in the first state, the first clutch member is connected to the second clutch member; When the clutch assembly is in the second state, the first clutch member is separated from the second clutch member; The second clutch member includes the operating portion, and the operating portion is located at an end of the second clutch member away from the first clutch member.

3. The self-locking handle according to claim 2, characterized in that: The first clutch member includes a gear, and the second clutch member also includes a transmission rod and a clutch ring, wherein the transmission rod is connected between the clutch ring and the operating portion, the clutch ring is arranged around the circumference of the gear, and a side of the clutch ring facing the gear is provided with meshing teeth adapted to the gear; When the clutch assembly is in the first state, the meshing teeth are meshed and connected with the gear; When the clutch assembly is in the second state, the meshing teeth are disengaged from the gear.

4. The self-locking handle according to claim 3, characterized in that: The meshing teeth are located at an end of the clutch ring away from the transmission rod.

5. The self-locking handle according to claim 2, characterized in that: The first clutch member includes a sleeve, and the second clutch member also includes a transmission rod and a clutch ring, wherein the transmission rod is connected between the clutch ring and the operating portion, and the clutch ring is disposed around the sleeve, and a rough surface is disposed on a side of the clutch ring facing the sleeve; When the clutch assembly is in the first state, the rough surface is frictionally engaged with the sleeve; When the clutch assembly is in the second state, the rough surface is separated from the sleeve.

6. The self-locking handle according to any one of claims 3 to 5, characterized in that: The second clutch member is slidably mounted in the rotating wheel, and a mounting cavity for accommodating the second clutch member is provided in the rotating wheel; The clutch ring comprises two oppositely arranged straight structure segments, the straight structure segments are parallel to the sliding direction of the second clutch member, and the sides of the two straight structure segments facing away from each other are both slidably fitted with the inner wall of the installation cavity.

7. The self-locking handle according to any one of claims 2 to 5, characterized in that: The housing assembly comprises a first housing and a second housing, wherein the first housing and the second housing cooperate to form the assembly cavity; A connecting shaft is protruded from one side of the first housing toward the second housing, and the first clutch member is sleeved on the connecting shaft and has an interference fit with the connecting shaft; The friction resistance between the first clutch member and the connecting shaft is greater than the force applied to the rotating wheel by the pull wire in the endoscope system.

8. The self-locking handle according to claim 2, characterized in that: The clutch assembly further includes an elastic reset member, which is connected between the rotating wheel and the second clutch member, and is used to drive the clutch assembly to maintain the first state and drive the clutch assembly to switch from the second state to the first state.

9. The self-locking handle according to claim 8, characterized in that: The handle is provided with a receiving groove at one end away from the rotating wheel body, and the receiving groove is provided with a step surface opposite to the operating part at one end close to the rotating wheel body; The elastic reset member is arranged in the accommodating groove, one end of the elastic reset member abuts against the operating portion, and the other end of the elastic reset member abuts against the step surface; When the clutch assembly is in the first state, the elastic reset member is in a natural extension state or a compression state.

10. An endoscope system, characterized in that: Comprising a self-locking handle as described in any one of claims 1 to 9.

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