Cable winding module and endoscope with adjustable locking degree

Abstract

The present invention discloses a winding module with adjustable locking degree and an endoscope. The winding module with adjustable locking degree includes a winding device and an interference member. The winding device includes a winding drum, and the winding drum defines a matching portion. The interference member is arranged on one radial side of the winding drum and is provided with an interference portion. The matching portion and / or the interference portion are provided with at least two in the axial direction of the winding drum. The winding drum and the interference member have a relative movable stroke in the axial direction of the winding drum, so that in the relative movable stroke, different interference portions and matching portions are adjusted to have a locking state in which they are close to and abut against each other, and an unlocking state in which they are separated. In the locking state, different interference portions and matching portions have different amounts of interference. In the present invention, the switching adjustment between different interference portions and matching portions is directly realized by operating the interference member and / or the winding drum to move along the axial direction. It has the characteristics of simple structure and convenient operation, which helps to improve the operation quality of the operator during the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a winding module with adjustable locking degree and an endoscope. Background Art

[0002] Endoscopes include, for example, oral choledochoscopes. Oral choledochoscopes are used in gastroenterology surgeries to treat diseases of the bile and pancreatic ducts. Currently, choledochoscopes on the market come in various forms and have various functions so that doctors can perform ERCP (Endoscopic Retrograde Cholangiopancreatography) surgery. Among the various functions of choledochoscopes, one is very important, namely the locking mode. Currently, the choledochoscopes on the market generally have only a locked state and an unlocked state for locking, and do not have a semi-locked state function. The semi-locked state can be understood as the suspension of the curved portion in the insertion portion at the current bending angle. In the semi-locked state, the operator can still adjust the bending angle of the curved portion without having to unlock it before adjusting the angle, which increases the surgical steps and greatly increases the operator's hand fatigue. Summary of the invention

[0003] The main purpose of the present invention is to provide a winding module and an endoscope with adjustable locking degree, aiming to solve the problem that the locking method in traditional endoscopes is single and a semi-locked state cannot be achieved.

[0004] To achieve the above object, the present invention provides a winding module with adjustable locking degree, comprising:

[0005] A wire winding device, comprising a wire winding reel rotatably arranged around its own axis, wherein a radial outer wall of the wire winding reel defines a mating portion; and

[0006] An interference member is disposed on one radial side of the winding drum and has an interference portion facing the matching portion;

[0007] Among them, at least two matching parts and / or interference parts are provided in the axial direction of the winding reel, and the winding reel and the interference part have a relative movable stroke in the axial direction of the winding reel, so as to adjust different interference parts and matching parts to have a locked state in which they are close to and abut against each other, and an unlocked state in which they are separated during their relative movable stroke, and in the locked state, different interference parts and matching parts have different amounts of interference.

[0008] Optionally, the winding module with adjustable locking degree further comprises a driving mechanism, wherein the driving mechanism drives and connects the interference member and / or the winding reel to drive the interference member and / or the winding reel to perform the relative movable stroke.

[0009] Optionally, two matching parts are provided at intervals in the axial direction of the winding drum, and are respectively a first matching part and a second matching part, and one interference part is provided;

[0010] The cable reel is fixed in its axial position, and the interference member is movable in translation along the axial direction of the cable reel.

[0011] Optionally, the cable reel comprises:

[0012] The disc body is rotatably arranged around its own axis under the driving force of an external force; and

[0013] An elastic member, convexly disposed on the radial outer wall of the disc body, the elastic member constituting the first matching portion;

[0014] Wherein, when in the locked state, the elastic member is squeezed and deformed by the interference portion to limit the disk body from continuing to rotate around its own axis under the driving force of the original external force.

[0015] Optionally, the radial outer wall of the disc body is provided with an annular groove along its circumference;

[0016] The elastic member is annularly sleeved on the annular groove.

[0017] Optionally, the cable reel comprises a reel body, and the reel body is rotatable around its own axis;

[0018] One of the radial outer wall of the disc body and the side wall of the interference member is provided with a limiting protrusion, and the other is provided with a limiting groove. When in the locked state, the limiting protrusion and the limiting groove are connected in a concave-convex manner to limit the rotation of the disc body around its own axis;

[0019] The limiting protrusion and the limiting groove respectively constitute the second matching portion and the interference portion.

[0020] Optionally, the limiting protrusion constitutes the interference portion, and the outer surface of the limiting protrusion is arranged in a convex arc shape; and / or,

[0021] One of the radial outer wall of the disk body and the side wall of the interference member is provided with a first gear tooth, and the other one is provided with a second gear tooth. A plurality of the first gear teeth and the second gear teeth are arranged at intervals along the circumference of the disk body respectively. The first gear teeth constitute the limiting protrusion, and the limiting groove is defined between every two adjacent second gear teeth.

[0022] Optionally, the winding module with adjustable locking degree further includes a driving mechanism, and the driving mechanism includes:

[0023] a rotating shaft, rotatably disposed about its own axis on one radial side of the cable reel, wherein the rotating axis of the rotating shaft is parallel to the rotating axis of the cable reel; and

[0024] An operating member extending along the radial direction of the rotating shaft, and having one end fixedly connected to the rotating shaft, so as to drive the rotating shaft to rotate when the other end of the operating member is driven to swing by an external force;

[0025] Among them, the interference member is provided with a rolling groove on the side wall facing the rotating shaft, the shape of the rolling groove is adapted to the shape of the radial outer wall of the rotating shaft, one of the rolling groove and the radial outer wall of the rotating shaft is provided with a guide protrusion, and the other is provided with a guide groove, and the guide groove extends obliquely along the axial and circumferential directions of the rotating shaft respectively.

[0026] Optionally, the cable reel is coaxially provided with at least two of them along its axial direction;

[0027] At least one interference member is correspondingly provided.

[0028] In addition, to achieve the above-mentioned purpose, the present invention also provides an endoscope, comprising an operating body and an insertion body convexly disposed at one end of the operating body;

[0029] The operating body includes the winding module with adjustable locking degree as described above.

[0030] In the technical solution provided by the present invention, the cable reel can achieve cable winding and unwinding by rotating forward and reverse around itself, thereby achieving the bending adjustment of the insertion body; and by operating the interference part and the matching part to be close and abut against each other, an interference effect can be generated between the interference part and the cable reel, and the interference effect hinders the continued rotation of the cable reel; because different interference parts and matching parts generate different interference amounts when they abut against each other, different degrees of interference effect can be generated between the interference part and the cable reel, and different degrees of locking are generated on the rotation of the cable reel, so that the cable reel has at least a completely locked state, a semi-locked state and an unlocked state; and because the switching adjustment between different interference parts and matching parts in the present invention is directly achieved by operating the interference part and / or the cable reel to move axially, it has the characteristics of simple structure and convenient operation, which helps to improve the operator's operation quality during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 A three-dimensional schematic diagram of an embodiment of an endoscope provided by the present invention at an operating body;

[0033] Figure 2 for Figure 1 A three-dimensional schematic diagram of a winding module with adjustable locking degree;

[0034] Figure 3 for Figure 2 Schematic diagram of the main structure of the winding module with adjustable locking degree;

[0035] Figure 4 for Figure 2 A schematic diagram of the top view of the winding module with adjustable locking degree;

[0036] Figure 5 for Figure 4 The cross-sectional structure diagram of the middle AA is in the unlocked state;

[0037] Figure 6 for Figure 4 The cross-sectional structure diagram of the middle AA in a semi-locked state;

[0038] Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure of AA in the fully locked state.

[0039] Description of Figure Numbers:

[0040] 100 housing; 200 winding device; 210 first winding drum; 211 first disk body; 212 first cam; 220 second winding drum; 221 second disk body; 222 second cam; 231 first rotating wheel; 232 second rotating wheel; 241 elastic member; 242 first gear tooth; 242a limiting groove; 250 blocking piece; 300 interference member; 310 interference section; 311 second gear tooth; 311a limiting protrusion; 320 driving section; 321 rolling groove; 322 guide slide groove; 400 driving mechanism; 410 rotating shaft; 411 guide protrusion; 420 connecting shaft; 430 operating member.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] See also Figures 1 to 7 The present invention provides a winding module with adjustable locking degree and an endoscope used therein. The specific type of the endoscope is not limited, for example, it can be a choledochoscope as described above.

[0046] Specifically, the winding module with adjustable locking degree includes a winding device 200 and an interference member 300. The winding device 200 includes a winding reel rotatably arranged around its own axis, and the radial outer wall of the winding reel defines a matching portion; the interference member 300 is arranged on one radial side of the winding reel, and an interference portion is arranged toward the matching portion; at least two matching portions and / or interference portions are arranged in the axial direction of the winding reel, and the winding reel and the interference member 300 have a relative movable stroke in the axial direction of the winding reel, so that in the relative movable stroke, different interference portions and matching portions are adjusted to have a locking state in which they are close to and abut against each other, and an unlocking state in which they are separated, and in the locked state, different interference portions and matching portions have different amounts of interference generated between them.

[0047] In the technical solution provided by the present invention, the cable reel can realize cable winding and unwinding by rotating forward and reverse around itself, thereby realizing the bending adjustment of the insertion body; and by operating the interference part and the matching part to be close and abut against each other, an interference effect can be generated between the interference member 300 and the cable reel, and the interference effect hinders the continued rotation of the cable reel; because different interference parts and matching parts generate different interference amounts when abutting against each other, different degrees of interference effect can be generated between the interference part 300 and the cable reel, and different degrees of locking are generated on the rotation of the cable reel, so that the cable reel device 200 has at least a completely locked state, a semi-locked state and an unlocked state; and because the switching adjustment between different interference parts and matching parts in the present invention is directly realized by operating the interference part 300 and / or the cable reel to move axially, it has the characteristics of simple structure and convenient operation, which helps to improve the operator's operation quality during the operation.

[0048] It can be understood that an endoscope generally includes an operating body and an insertion body connected to each other.

[0049] The operating body generally refers to a main structure that does not intervene in the patient's body during the medical operation and can be held by the operator to operate the insertion body and the external instruments inserted therein. Based on this, the operating body is generally designed to be easy for the user to hold and operate, such as a handle, a gun, a grip, etc. Generally, the operating body includes a housing 100 and various functional components provided at the housing 100. For example, the above-mentioned winding module with adjustable locking degree can be one of the functional components.

[0050] The insertion body refers to a long tubular structure that at least partially intervenes in the patient's body to reach the diseased part during the medical operation. Generally, the insertion body is plugged and fixed at one end of the operating body, and extends in a long shape in the direction away from the operating body. The end of the insertion body away from the operating body generally forms the head end. The insertion body is generally provided with a working channel and a mounting channel along its axial direction. Among them, the mounting channel can be used for installation of imaging devices and / or lighting devices, for example. The imaging device is a device used to capture images of the diseased part during medical operations, which can be but not limited to a CMO (Complementary Metal-Oxide-Semiconducto) image sensor. The lighting device is a device used to illuminate the diseased part during medical operations, which can assist the imaging device in capturing images, which can be but not limited to a built-in light source device such as an LED, or a device such as an optical fiber that guides the light of an external light source device to the head end. The working channel is generally provided for the insertion of external diagnostic and treatment instruments, or for suction, liquid delivery and other operations through the working channel.

[0051] In view of the above, in order to make the orientation of the head end adjustable, at least a partial section of the insertion body constitutes a curved section. The curved section can bend sideways toward at least one side of its radial direction, thereby driving the distal section thereof to bend, and finally achieving the purpose of adjusting the orientation of the imaging device and / or lighting device at the head end.

[0052] At this time, the wire winding device 200 generally includes a traction wire in addition to the above-mentioned wire winding drum. One end of the traction wire extends distally along the axial direction of the insertion body to be connected and fixed to a radial side wall of the curved section; the other end of the traction wire is wound around the winding groove at the radial outer peripheral side wall of the wire winding drum. In this way, when the wire winding drum rotates in the positive direction around its own axis, the traction wire can be wound up, and then the side wall of the curved section is pulled by the traction wire to drive the curved section to bend sideways; conversely, when the wire winding drum rotates in the reverse direction around its own axis, the traction wire can be released, and then the pulling force on the traction wire is cancelled, so that the curved section is restored to a naturally straightened state.

[0053] Of course, the rotation of the above-mentioned winding reel can be achieved by automatic drive with the help of specially designed power components; or the rotation of the above-mentioned winding reel can be directly achieved by manual operation of the operator. Taking manual operation as an example, the winding reel generally includes a disc body, which is roughly a disc structure with a certain thickness, and the outer peripheral side wall is provided with the above-mentioned winding groove. In addition, the winding reel generally also includes a convex shaft protruding at one axial end of the disc body, and the central axis of the convex shaft is colinear with the rotating shaft 410 of the winding reel. At this time, the winding device 200 may also include a rotating wheel, which is connected and fixed to the free section of the convex shaft. And generally, one section of the disc body and the convex shaft is accommodated in the shell 100; the other section of the convex shaft passes out of the shell 100 and is connected and fixed to the rotating wheel arranged outside the shell 100. In this way, the operator can drive the disc body to rotate by manually rotating the rotating wheel to achieve the above-mentioned winding and releasing operations.

[0054] It should be noted that, in actual application, the above-mentioned bending section can be set to one or at least two; the same bending section can be bent in one direction, radially on both sides, or in multiple radial directions. Therefore, correspondingly, one traction line or two traction lines can be wound on the same winding drum. Or the same winding module with adjustable locking degree can include at least two winding devices 200. Figures 1 to 7Taking the structure shown as an example, the winding module with adjustable locking degree includes two winding devices 200. One of the winding devices 200 includes a first winding drum 210 and a first rotating wheel 231; the first winding drum 210 includes a first drum body 211 and a first protruding shaft 212. The other winding device 200 includes a second winding drum 220 and a second rotating wheel 232; the second winding drum 220 includes a second drum body 221 and a second protruding shaft 222. Specifically, the first drum body 211 and the first protruding shaft 212 are provided with a plug hole along their axial direction; the second drum body 221 is stacked on the end of the first drum body 211 facing away from the first protruding shaft 212, and the second protruding shaft 222 passes through the above-mentioned plug hole and is connected to the second rotating wheel 232, so that the second rotating wheel 232 is stacked on the end of the first rotating wheel 231 facing away from the first drum body 211. A blocking piece 250 can be provided between the first drum body 211 and the second drum body 221. In this way, a more compact structural design of the two winding devices 200 is achieved.

[0055] In view of the above-mentioned embodiment of the winding device 200, the interference member 300 is arranged on the radial side of the winding reel, and the interference member 300 includes an interference section 310, and the interference section 310 has an interference surface facing the winding reel. The interference surface is generally along the circumference of the winding reel and is suitable for the shape of the winding reel at the location and is a concave arc surface. The radial outer wall of the winding reel defines a matching portion, and correspondingly, the interference surface defines an interference portion.

[0056] The cable reel and the interference member 300 have a relative movable stroke in the axial direction of the cable reel. Specifically, the cable reel may be fixed relative to the housing 100, and the interference member 300 may be movable relative to the housing 100 along the axial direction of the cable reel; or the interference member 300 may be fixed relative to the housing 100, and the cable reel may be movable relative to the housing 100 along its axial direction; or both the cable reel and the interference member 300 may be movable relative to the housing 100 along the axial direction of the cable reel, and the two may be movable in opposite directions or in the same direction at differential speeds. For ease of understanding, in the following embodiments, the cable reel is fixed relative to the housing 100, and the interference member 300 is movable relative to the housing 100 along the axial direction of the cable reel as an example. In this way, mutual interference between the locking degree adjustment process and the cable reel rotation operation process can be avoided as much as possible.

[0057] Next, during the relative movement of the cable reel and the interference member 300, if the interference portion and the matching portion are not in contact and separated from each other, there is basically no mutual interference between the two, that is, the interference member 300 will not have any effect on the winding and releasing process of the cable reel, and is in an unlocked state. The operator can operate the cable reel to rotate without hindrance to achieve the bending adjustment of the bending section of the insertion body. If the interference portion and the matching portion are in contact and press against each other, there will be mutual interference between the two, that is, the interference member 300 will have a certain obstruction on the winding and releasing process of the cable reel, and is in a locked state.

[0058] In order to form at least two locking degrees in the locked state, the present invention is designed to have at least two interference parts and / or matching parts arranged along the axial direction of the cable reel, that is, on the relative displacement path of the cable reel and the interference member 300. Specifically, at least two interference parts may be arranged in sequence along the axial direction of the cable reel; or at least two matching parts may be arranged in sequence along the axial direction of the cable reel; of course, at least two interference parts and matching parts may be arranged in sequence along the axial direction of the cable reel, respectively. For ease of understanding, in the following embodiments, two matching parts are arranged along the axial direction of the cable reel, and they are the first matching part and the second matching part, respectively. In this case, one interference part is provided.

[0059] It should be noted that the above arrangement is for the quantitative relationship between the matching parts and the interference parts between the same winding device 200 and the interference member 300. For example, when there are at least two winding reels as described above, the matching parts defined on each winding reel may be one or at least two; and / or the interference parts on the interference member 300 corresponding to each winding reel may be one or at least two. Wherein, when the first matching part and the second matching part are defined on each winding reel, if the adjustment requirements of the locking state of the two winding reels can be achieved at the same time, the interference member 300 is set to two corresponding to the two winding reels; or the interference surface of the interference member 300 extends along the axial direction of the winding reel to sufficiently cover the first winding reel 210 and the second winding reel 220, and two interference parts are provided on the interference surface along the axial direction of the winding reel, one of which is respectively matched with the first matching part and the second matching part at the first winding reel 210 during its activity; and the other interference part is respectively matched with the first matching part and the second matching part at the second winding reel 220 during its activity. Alternatively, if the locking state of the two winding reels is not required to be adjusted simultaneously, and generally only one of them is required, only one interference portion may be provided on the interference member 300. In this case, during the relative motion, the interference member 300 may be respectively engaged with the first and second engagement portions of the first winding reel 210 and the first and second engagement portions of the second winding reel 220.

[0060] Based on one or more of the above embodiments, it can be understood that a first interference amount is formed between the interference portion and the first matching portion, and a second interference amount is formed between the interference portion and the second matching portion, then the first interference amount is set to be different from the second interference amount, and specifically, the first interference amount can be set to be smaller than the second interference amount. In this way, when the interference portion moves to abut against the first matching portion, it is in a semi-locked state. At this time, when no external force is applied, or the original external force is continued to be applied, the first cable reel 210 / the second cable reel 220 remains non-rotating, which is equivalent to hovering; when another external force greater than the original external force is applied, the first cable reel 210 / the second cable reel 220 can be driven to rotate, and the bending degree of the curved section of the insertion body is continuously adjusted. When the interference portion moves to abut against the second matching portion, it is in a completely locked state. At this time, under almost any external force (any external force that does not cause structural damage), the first cable reel 210 / the second cable reel 220 remains non-rotating, which is equivalent to stopping.

[0061] It should be noted that the above-mentioned semi-locked state does not constitute a limitation on the locking degree, that is, the semi-locked state is not strictly limited to a state of 50% of the fully locked state, and can be any suitable locking degree state between the unlocked state and the fully locked state.

[0062] There are many specific schemes for realizing the above-mentioned first matching part. In one embodiment, if the cable reel includes a reel body as described above, and the reel body is rotatable around its own axis when driven by an external force, the cable reel may further include an elastic member 241, which is protruding from the radial outer wall of the reel body. The elastic member 241 constitutes the first matching part; wherein, when in a locked state, the elastic member 241 is squeezed and deformed by the interference part to limit the reel body from continuing to rotate around its own axis when driven by the original external force.

[0063] It can be understood that the elastic member 241 can be arranged only in a local area of ​​the circumference of the disc body, or the elastic member 241 can be arranged along the entire circumference of the disc body. Specifically, the elastic member 241 can extend in a ring shape along the circumference of the disc body. In this case, the radial outer wall of the disc body is provided with an annular groove along its circumference; the elastic member 241 is annularly sleeved in the annular groove.

[0064] The elastic member 241 has the ability to be stretched and deformed in the radial direction of the disk body at least. Since the elastic member 241 protrudes radially from the radial outer wall of the disk body in the natural state, when the interference portion is driven to face the radial outer wall of the disk body, the interference portion and the radial outer wall are kept at a distance (the distance between the distance between the elastic member 241 and the radial outer wall is not greater than the protruding height of the elastic member 241 protruding from the radial outer wall of the disk body), or they are just in contact, and there is no mutual interference between the two, and they are in an unlocked state. When the interference portion is driven to the elastic member 241, a radial extrusion force is generated on the elastic member 241, causing the elastic member 241 to be extruded and deformed, and then a reverse force is applied to the interference member 300. That is, friction damping is generated between the interference portion and the elastic member 241 to prevent the disk body from continuing to rotate.

[0065] There are many specific schemes for realizing the second matching part. In one embodiment, if the cable reel includes a reel body as described above, and the reel body is rotatably arranged around its own axis under the drive of an external force, one of the radial outer wall of the reel body and the side wall of the interference member 300 is provided with a limiting protrusion 311a, and the other is provided with a limiting groove 242a. When in a locked state, the limiting protrusion 311a and the limiting groove 242a are connected in a concave-convex manner to limit the rotation of the reel body around its own axis; the limiting protrusion 311a and the limiting groove 242a respectively constitute the second matching part and the interference part. It can be understood that the limiting protrusion 311a and the limiting groove 242a mainly refer to the limiting in the radial direction of the reel body, and no limiting occurs in the axial direction of the reel body. That is, at least the limiting groove 242a is through in the axial direction of the reel body, which facilitates the cable reel and the interference member 300 to perform a relative movable stroke along the axial direction. Through the concave-convex connection between the limiting protrusion 311a and the limiting groove 242a, unless the external force is so large that the structure of the limiting protrusion 311a and / or the limiting groove 242a is damaged, the winding reel cannot continue to rotate within a certain external force range and reaches a completely locked state.

[0066] Similarly to the above, the interference member 300 may be provided with a limiting protrusion 311a, which constitutes the interference portion; the radial outer wall of the disk body may be provided with a limiting groove 242a, which constitutes the second matching portion. Alternatively, the interference member 300 may be provided with a limiting groove 242a, which constitutes the interference portion; the radial outer wall of the disk body may be provided with a limiting protrusion 311a, which constitutes the second matching portion. Of course, the interference member 300 may be provided with both a limiting protrusion 311a and a limiting groove 242a, which constitute the interference portion; the radial outer wall of the disk body may be provided with a limiting groove 242a and a limiting protrusion 311a, which constitute the second matching portion.

[0067] Specific as Figures 1 to 7In the structure shown, the interference member 300 is provided with a limiting protrusion 311a, and the outer surface of the limiting protrusion 311a is arranged in a convex arc shape. Through the convex arc shape, when the interference member 300 moves along the axial direction of the winding reel, it can switch and transfer more smoothly between the first matching portion, the second matching portion, and the remaining radial outer wall of the reel body under the smooth guidance of the convex arc shape. In particular, when the first matching portion is defined by the elastic member 241 as described above, the limiting protrusion 311a arranged in a convex arc shape can increase the contact area with the elastic member 241 as much as possible, reduce stress concentration, and then help to increase the service life of the elastic member 241.

[0068] And / or, one of the radial outer wall of the disc body and the side wall of the interference member 300 is provided with a first gear tooth 242, and the other is provided with a second gear tooth 311, and a plurality of the first gear teeth 242 and the second gear teeth 311 are arranged at intervals along the circumference of the disc body, respectively, and the first gear teeth 242 constitute a limiting protrusion 311a, and a limiting groove 242a is defined between every two adjacent second gear teeth 311. For example, the radial outer wall of the disc body is provided with a second gear tooth 311, and the second gear teeth 311 can be arranged along a local area of ​​the circumference of the disc body, or can be arranged along the entire circumference of the disc body. The above-mentioned limiting groove 242a is defined at the interval between every two adjacent second gear teeth 311. In this way, at any position during the rotation of the disc body, at least one limiting groove 242a is connected with at least one limiting protrusion 311a in a concave-convex manner to achieve a complete locking effect.

[0069] Based on the above, the relative movable stroke between the cable reel and the interference member 300 in the axial direction of the cable reel can be directly realized by the user manually operating the cable reel (or rotating wheel) and driving the interference member 300, or in one embodiment, the cable reel module with adjustable locking degree also includes a driving mechanism 400, and the driving mechanism 400 drives the connected interference member 300 and / or the cable reel to drive the interference member 300 and / or the cable reel to perform the said relative movable stroke. Similarly, taking the above-mentioned interference member 300 as an example and the cable reel being relatively fixed, the driving mechanism 400 can be connected to the interference member 300. Based on the above-mentioned Figures 1 to 7The structure shown, specifically, the driving mechanism 400 includes a rotating shaft 410 and an operating member 430, wherein the rotating shaft 410 is rotatably arranged on the radial side of the winding reel around its own axis, and the rotating axis 410 line of the rotating shaft 410 is parallel to the rotating axis 410 line of the winding reel; the operating member 430 extends along the radial direction of the rotating shaft 410, and one end is fixedly connected to the rotating shaft 410, so as to drive the rotating shaft 410 to rotate when the other end of the operating member 430 is driven by an external force to swing; wherein, the interference member 300 is provided with a rolling groove 321 on the side wall facing the rotating shaft 410, and the shape of the rolling groove 321 is adapted to the shape of the radial outer wall of the rotating shaft 410, and one of the rolling groove 321 and the radial outer wall of the rotating shaft 410 is provided with a guide protrusion 411, and the other is provided with a guide slide groove 322, and the guide slide groove 322 extends obliquely along the axial direction and circumferential direction of the rotating shaft 410 respectively.

[0070] Specifically, the operating member 430 has a connecting section and an operating section. The connecting section can be directly connected to the rotating shaft 410, or the connecting section can be connected to the rotating shaft 410 through, for example, a connecting shaft 420, and the connecting shaft 420 and the rotating shaft 410 are coaxially installed. The connecting section extends roughly along the radial direction of the rotating shaft 410, and the operating section can be bent and extended from one end of the connecting section away from the rotating shaft 410 toward the axial direction of the rotating shaft 410, so as to be more convenient for the operator to hold the operation. After the winding module with adjustable locking degree is installed to the housing 100, at least the operating section can pass out of the housing 100 and appear outside the housing 100.

[0071] The interference member 300 further includes a driving section 320, which is connected to the interference section 310 and is disposed toward the rotating shaft 410. Since the radial outer wall of the rotating shaft 410 is in the shape of a convex arc surface, in order to shorten the matching distance between the driving section 320 and the rotating shaft 410, the driving section 320 may be provided with a rolling groove 321, which is in the shape of a concave arc surface and is adapted to the shape of the radial outer wall of the rotating shaft 410 at the location.

[0072] Similarly to the above, the rolling groove 321 may be provided with a guide protrusion 411, and the radial outer wall of the rotating shaft 410 may be provided with a guide groove 322. Alternatively, the rolling groove 321 may be provided with a guide groove 322, and the radial outer wall of the rotating shaft 410 may be provided with a guide protrusion 411. Of course, the rolling groove 321 may be provided with both a guide protrusion 411 and a guide groove 322, and the radial outer wall of the rotating shaft 410 may be provided with a guide groove 322 and a guide protrusion 411. Figures 1 to 7 As shown, specifically, the radial outer wall of the rotating shaft 410 may be provided with a guide protrusion 411 and the rolling groove 321 may be provided with a guide groove.

[0073] When the operator holds the operating section and swings the connecting section, the connecting shaft 420 drives the rotating shaft 410 to rotate around its own axis, and then the guide protrusion 411 slides along the guide slot 322. Since the guide slot 322 extends obliquely along the circumference and axial direction of the rotating shaft 410, the circumferential rotation of the rotating shaft 410 can be converted into the axial translation of the interference member 300 as a whole along the rotating shaft 410. The axial direction of the rotating shaft 410 is parallel to the axial direction of the winding reel, which means that the interference member 300 can be driven to translate along the axial direction of the winding reel as a whole, which has the characteristics of simple structure and convenient operation.

[0074] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A winding module with adjustable locking degree, characterized in that: include: A wire winding device, comprising a wire winding drum rotatably arranged around its own axis, wherein a radial outer wall of the wire winding drum defines a mating portion; as well as, An interference member is disposed on one radial side of the winding drum and has an interference portion facing the matching portion; Wherein, at least two matching parts are provided at intervals in the axial direction of the cable reel, and include a first matching part and a second matching part, and the cable reel and the interference member have a relative movable stroke in the axial direction of the cable reel, so that in the relative movable stroke, different interference parts and matching parts are adjusted to have a locking state in which they are close to and abut against each other, and an unlocking state in which they are separated, and in the locking state, different interference amounts generated between the interference parts and the matching parts are different; Wherein, the cable reel includes a reel body and an elastic member, and the reel body can be rotatably arranged around its own axis under the drive of an external force; the elastic member is protruding from the radial outer wall of the reel body, and the elastic member constitutes the first matching portion; wherein, when in the locked state, the elastic member is squeezed and deformed by the interference portion to limit the reel body from continuing to rotate around its own axis under the original external force drive.

2. The winding module with adjustable locking degree as claimed in claim 1, characterized in that: The winding module with adjustable locking degree also includes a driving mechanism, which is driven to connect the interference member and / or the winding reel to drive the interference member and / or the winding reel to perform the relative movable stroke.

3. The winding module with adjustable locking degree as claimed in claim 1, characterized in that: The matching parts are provided with two at intervals in the axial direction of the winding drum, and are respectively the first matching part and the second matching part, and the interference part is provided with one; The cable reel is fixed in its axial position, and the interference member is movable in translation along the axial direction of the cable reel.

4. The winding module with adjustable locking degree as claimed in claim 3, characterized in that: The radial outer wall of the disc body is provided with an annular groove along its circumference; The elastic member is annularly sleeved on the annular groove.

5. The winding module with adjustable locking degree as claimed in claim 3, characterized in that: The cable reel comprises a reel body, and the reel body is rotatable around its own axis; One of the radial outer wall of the disc body and the side wall of the interference member is provided with a limiting protrusion, and the other is provided with a limiting groove. When in the locked state, the limiting protrusion and the limiting groove are connected in a concave-convex manner to limit the rotation of the disc body around its own axis; The limiting protrusion and the limiting groove respectively constitute the second matching portion and the interference portion.

6. The winding module with adjustable locking degree as claimed in claim 5, characterized in that: The limiting protrusion constitutes the interference portion, and the outer surface of the limiting protrusion is arranged in a convex arc shape; and / or, One of the radial outer wall of the disk body and the side wall of the interference member is provided with a first gear tooth, and the other one is provided with a second gear tooth. A plurality of the first gear teeth and the second gear teeth are arranged at intervals along the circumference of the disk body respectively. The first gear teeth constitute the limiting protrusion, and the limiting groove is defined between every two adjacent second gear teeth.

7. The winding module with adjustable locking degree according to any one of claims 3 to 6, characterized in that: The winding module with adjustable locking degree also includes a driving mechanism, and the driving mechanism includes: a rotating shaft, rotatably disposed about its own axis on one radial side of the cable reel, wherein the rotating axis of the rotating shaft is parallel to the rotating axis of the cable reel; and An operating member extending along the radial direction of the rotating shaft, and having one end fixedly connected to the rotating shaft, so as to drive the rotating shaft to rotate when the other end of the operating member is driven to swing by an external force; Among them, the interference member is provided with a rolling groove on the side wall facing the rotating shaft, the shape of the rolling groove is adapted to the shape of the radial outer wall of the rotating shaft, one of the rolling groove and the radial outer wall of the rotating shaft is provided with a guide protrusion, and the other is provided with a guide groove, and the guide groove extends obliquely along the axial and circumferential directions of the rotating shaft respectively.

8. The winding module with adjustable locking degree as claimed in claim 1, characterized in that: The cable reel is coaxially provided with at least two cables; At least one interference member is correspondingly provided.

9. An endoscope, characterized in that: It comprises an operating body and an insertion body protruding from one end of the operating body; The operating body comprises a winding module with adjustable locking degree as described in any one of claims 1 to 8.

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