Bending operation device and endoscope

Abstract

The utility model discloses a bending operation device and an endoscope, which relate to the field of endoscopes. The bending operation device includes a shell, a bending component and a positioning component. The bending component includes a winding wheel and an operating line that are fixedly connected; the positioning component includes a button component, a hook component and a first elastic element. The button component and the shell are slidably configured, one end of the hook component is movably connected in the shell, and the other end of the hook component is connected to the button component. The user only needs to use the tip of the index finger to lightly press the button component to achieve the locking and unlocking operations of the bending knob. Compared with the traditional technology that requires the use of the index finger to turn the locking knob from the side, this embodiment uses the tip of the index finger to apply force, which is more ergonomic, simpler and more convenient to operate, and brings a more comfortable experience to the user.

Description

Technical Field

[0001] The utility model relates to the field of endoscopes, in particular to a bending adjustment operation device and an endoscope. Background Art

[0002] The endoscope penetrates deep into the human body through a high-definition camera system to provide medical staff with lesion observation. In practical applications, it is crucial to ensure the flexibility and stability of the endoscope in the human body. Medical staff use the bending knob of the operating part to pull the operating wire to control the bending of the bending part to meet observation and treatment needs. However, the bending part has the force to return to a straight state due to the material properties. When the medical staff releases the bending knob, the bending part will gradually return to a straight state from the bent state. In the prior art, a locking mechanism and a locking knob for the winding wheel are usually added. Medical staff lock or unlock the winding wheel by rotating the locking knob.

[0003] In the prior art, the locking knob is usually locked and unlocked by the index finger of the hand. When the user holds the operating part, he wraps his index finger around the operating part and operates the locking knob by touching it. However, in this operating posture, the user can only rotate the locking knob by applying thrust with the side contact of the thumb. It is difficult for the finger to effectively exert force, resulting in an unsatisfactory operating experience, which reduces the reliability and stability of the control operation. Utility Model Content

[0004] In order to solve the technical problems raised by the above background technology, the utility model provides a bending adjustment operation device, comprising:

[0005] case;

[0006] The bending adjustment component comprises a winding wheel and an operating wire which are fixedly connected to each other, wherein the winding wheel is suitable for driving the operating wire to move so as to implement the bending adjustment control;

[0007] The positioning component comprises a button member, a hook member and a first elastic element, wherein the button member and the housing are slidably arranged, one end of the hook member is movably connected in the housing, the other end of the hook member is connected to the button member, one end of the first elastic element is elastically abutted against the button member, and the other end of the first elastic element is elastically abutted against the housing; during the relative sliding stroke of the button member and the housing, the hook member can move between a first stable position and a second stable position of the button member;

[0008] The button member is configured to be able to slide relative to the shell in a first direction to approach the limiting winding wheel, and to allow the hook member to be hooked at the first stable position to lock the operating line, and to be able to slide relative to the shell in a second direction to release the winding wheel, and to allow the hook member to be hooked at the second stable position to unlock the operating line. The first direction and the second direction are set opposite to each other.

[0009] Optionally, a connecting portion is provided on the button member, and a hanging portion is provided on a side of the hook member close to the button member, and the hanging portion is slidably arranged in the connecting portion.

[0010] Optionally, the connecting portion is provided with a slide groove structure, the slide groove structure includes a first guide section and a second guide section, either guide section is suitable for slidingly setting with the hanging portion, the first guide section is arranged in the direction of the hanging portion switching from the second stable position to the first stable position, and the second guide section is arranged in the direction of the hanging portion switching from the first stable position to the second stable position.

[0011] Optionally, a positioning block is provided in the slide groove structure, and a positioning groove for forming the first stable position is constructed on the positioning block;

[0012] The slide groove structure also includes an inner convex structure arranged toward the positioning groove, the inner convex structure and the positioning block are arranged at intervals, and a track for the hanging part to slide is provided between the inner wall surface of the slide groove structure and the outer wall surface of the positioning block;

[0013] The slide groove structure is configured to form a connecting groove for the second stable position, and the second stable position is arranged on a side of the first stable position close to the winding wheel.

[0014] Optionally, the positioning component also includes a first guide rod, at least one of which is provided, and the first elastic element and the first guide rod are provided correspondingly; one end of the first guide rod is fixedly connected to the button member, and the other end of the first guide rod is slidably inserted into the shell, and the first elastic element is sleeved and installed on the first guide rod.

[0015] Optionally, the winding wheel is provided with an abutment portion, and the abutment portion is arranged on a path along which the button member moves in the first direction;

[0016] The positioning component also includes a friction block, which is connected to the side of the button member moving toward the abutment portion. A friction surface is provided on the friction block, and the friction surface is conformally arranged to the outer wall surface of the abutment portion.

[0017] Optionally, the positioning component also includes a second elastic element and a second guide rod, one end of the second guide rod is fixedly connected to the button member, the other end of the second guide rod is slidably connected to the friction block, the second elastic element is sleeved on the second guide rod, and the second elastic element is connected between the button member and the friction block.

[0018] Optionally, a limiting portion is provided on the second guide rod, and the limiting portion is arranged on a path where the friction block moves toward the winding wheel, and the limiting portion is used to stop the friction block.

[0019] Optionally, the bending adjustment component further includes a bending adjustment knob, the bending adjustment knob is rotatably arranged on the outside of the shell, and the bending adjustment knob is fixedly connected to the winding wheel; and / or

[0020] The housing is provided with a receiving cavity, the winding wheel and the hook member are arranged in the receiving cavity, and at least a part of the button member extends into the receiving cavity to connect with the hook member; and / or

[0021] A sleeve is fixedly provided in the shell, and the operation wire is slidably arranged in the sleeve.

[0022] An endoscope includes the above-mentioned bending adjustment operation device. The endoscope is configured as an electronic endoscope, an ultrasonic endoscope, an ultrasonic bronchoscope, etc.

[0023] The technical solution provided by the utility model has the following advantages:

[0024] The bending adjustment operating device provided by the utility model includes a shell, a bending adjustment component and a positioning component. The bending adjustment component includes a winding wheel and an operating wire that are fixedly connected to each other. The winding wheel is suitable for driving the operating wire to move to implement bending control; the positioning component includes a button component, a hook component and a first elastic element. The button component and the shell are slidably configured, one end of the hook component is movably connected in the shell, and the other end of the hook component is connected to the button component; in the relative sliding stroke of the button component and the shell, the hook component can move between a first stable position and a second stable position of the button component.

[0025] In the bending operation device of this structure, after adjusting the position of the operating wire, the user can press the button member to overcome the elastic force of the first elastic element, so that the button member slides relative to the housing in the first direction close to and limits the winding wheel. At the same time, the first elastic element acts on the button member to displace, so that the second stable position is close to the hook member, so that the hook member moves relatively to the second stable position connected to the button member, to ensure the locking of the operating wire, and then maintain the bending angle determined at the distal end of the endoscope. When the user needs to adjust the position of the operating wire, the user can continue to press the button member to overcome the elastic force of the first elastic element, so that the button member slides relative to the housing in the second direction away from the release winding wheel. At the same time, the first elastic element acts on the button member to displace, so that the first stable position is close to the hook member, and the hook member moves relatively to the first stable position connected to the button member, so as to release the locking of the operating wire and then implement the bending control. The utility model can realize the locking and unlocking of the operating wire by pressing the button member, so as to achieve the purpose of correspondingly implementing the locking and bending angle control. The pressing method is convenient for the user's finger to exert force, and can improve the reliability and stability of the control operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a front view of the bending adjustment operating device provided by the utility model;

[0028] Figure 2 This is an external schematic diagram of the bending adjustment operating device provided by the utility model;

[0029] Figure 3 A three-dimensional schematic diagram of the bending adjustment operating device provided by the utility model;

[0030] Figure 4 A schematic diagram of the structure of the bending adjustment operating device provided by the utility model;

[0031] Figure 5 A schematic diagram of the connection between the connecting part and the hanging part in the bending operation device provided by the utility model;

[0032] Figure 6 This is a schematic structural diagram of the connection part of the bending adjustment operating device provided by the utility model;

[0033] Figure 7 A cross-sectional schematic diagram of the bending adjustment operating device provided by the utility model in an unlocked state;

[0034] Figure 8 A cross-sectional schematic diagram of the bending adjustment operating device provided by the utility model in a locked state;

[0035] Fig. 9 A partial cross-sectional schematic diagram of the bending adjustment operating device provided by the utility model;

[0036] Description of reference numerals:

[0037] 1-housing; 11-accommodating chamber; 12-sleeve;

[0038] 2-bending component; 21-bending knob; 22-winding wheel; 221-contact part; 23-operating wire;

[0039] 3-positioning component; 31-button member; 311-connecting portion; 3111-first stable position; 3112-first intermediate position; 3113-second stable position; 3114-second intermediate position; 3115-first guide surface; 3116-second guide surface; 3117-third guide surface; 3118-fourth guide surface; 3119-positioning block; 31110-inner convex structure; 32-hook member; 321-hook portion; 33-first guide rod; 34-first elastic element; 35-friction block; 351-friction surface; 36-second elastic element; 37-second guide rod; 371-limiting portion. DETAILED DESCRIPTION

[0040] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Example 1

[0045] This embodiment provides a bending operation device, such as Figures 1 to 9 As shown, the bending operating device includes a housing 1 , a bending adjusting component 2 and a positioning component 3 .

[0046] See also Figure 1 and Figure 2 The bending adjustment component 2 includes a bending adjustment knob 21, a winding wheel 22 and an operating wire 23. The bending adjustment knob 21 is rotatably arranged on the outside of the shell 1. The bending adjustment knob 21 and the winding wheel 22 are fixedly connected, and the operating wire 23 is partially fixed on the winding wheel 22; wherein, the distal end of the operating wire 23 is suitable for connecting with the bending portion at the distal end of the insertion portion of the endoscope. The user can operate the bending adjustment knob 21 to rotate, so that the winding wheel 22 can drive the operating wire 23 to be wound on the winding wheel 22, so as to implement the bending control of the bending portion.

[0047] In a specific embodiment, the bending knob 21 and the winding wheel 22 have the same rotation center.

[0048] In a specific embodiment, see Figure 1 A sleeve 12 is fixedly disposed in the housing 1, and the operating wire 23 is slidably disposed in the sleeve 12. The sleeve 12 guides the path of the operating wire 23 in a sliding manner.

[0049] See also Figure 1 and Figure 3 The positioning component 3 includes a button member 31, a hook member 32 and a first elastic element 34. The button member 31 and the shell 1 are slidably configured, one end of the hook member 32 is movably connected in the shell 1, and the other end of the hook member 32 is connected to the button member 31; one end of the first elastic element 34 is elastically abutted against the button member 31, and the other end of the first elastic element 34 is elastically abutted against the shell 1; in the relative sliding stroke of the button member 31 and the shell 1, the hook member 32 can move between the first stable position 3111 and the second stable position 3113 of the button member 31.

[0050] In this embodiment, see Figure 1 The housing 1 is provided with a receiving chamber 11 , the winding wheel 22 and the hook member 32 are arranged in the receiving chamber 11 , and at least a portion of the button member 31 extends into the receiving chamber 11 to connect with the hook member 32 .

[0051] In this embodiment, the button member 31 is configured to be able to slide relative to the shell 1 along a first direction close to the limit winding wheel 22, and the hook member 32 is hooked at the second stable position 3113 to lock the operating line 23, and the button member 31 is configured to be able to slide relative to the shell 1 along a second direction away from the release winding wheel 22, and the hook member 32 is hooked at the first stable position 3111 to unlock the operating line 23. The first direction and the second direction are set opposite to each other.

[0052] In this embodiment, the first elastic element 34 is configured to act on the button member 31 to slide toward the outer end of the housing 1, so that the hook member 32 can be hooked at the first stable position 3111 or the second stable position 3113. The elastic force direction of the first elastic element 34 acting on the button member 31 is parallel to the second direction.

[0053] In some embodiments, see Figure 4 and Figure 5 The button member 31 is provided with a connecting portion 311, and the hook member 32 is provided with a hanging portion 321 at one end close to the button member 31, and the hanging portion 321 is slidably arranged in the connecting portion 311. The hanging portion 321 can move perpendicularly or substantially perpendicularly to the first direction or the second direction relative to the housing 1, wherein the other end of the hook member 32 can be connected to the housing 1 in a hinged manner or in a sliding manner.

[0054] As an exemplary embodiment, see Figure 6 The connecting portion 311 is provided with a slide groove structure, and the slide groove structure includes a first guide segment and a second guide segment. Either guide segment is suitable for slidingly setting with the hanging portion 321. The first guide segment is set in the direction in which the hanging portion 321 switches from the first stable position 3111 to the second stable position 3113, and the second guide segment is set in the direction in which the hanging portion 321 switches from the second stable position 3113 to the first stable position 3111.

[0055] Furthermore, a positioning block 3119 is provided in the slide groove structure, and a positioning groove of the second stable position 3113 is constructed on the positioning block 3119; the slide groove structure also includes an inner convex structure 31110 arranged toward the positioning groove, and the inner convex structure 31110 and the positioning block 3119 are arranged at intervals. The inner convex structure 31110 can facilitate the guide hanging part 321 to enter and exit the second stable position 3113.

[0056] A track for the hanging part 321 to slide is arranged between the inner wall surface of the slide groove structure and the outer wall surface of the positioning block 3119. A connecting groove for forming the first stable position 3111 is constructed on the slide groove structure.

[0057] The first guide section includes a first guide surface 3115, a first intermediate position 3112 and a second guide surface 3116, and the second guide surface 3116 is structured and arranged on the positioning block 3119; the first guide surface 3115, the first intermediate position 3112, and the second guide surface 3116 are sequentially arranged in the path direction of the hanging part 321 switching from the first stable position 3111 to the second stable position 3113.

[0058] The second guide section includes a third guide surface 3117 , a second intermediate position 3114 , and a fourth guide surface 3118 , which are sequentially arranged in the path direction of the hanging portion 321 switching from the second stable position 3113 to the first stable position 3111 .

[0059] The bending operation device provided in this embodiment, after adjusting the position of the operating wire 23, the user can press the button member 31 to overcome the elastic force of the first elastic element 34, so that the button member 31 slides relative to the housing 1 along the first direction to approach and limit the winding wheel 22. At the same time, the first elastic element 34 acts on the button member 31 to move, so that the second stable position 3113 approaches the hook member 32, so that the hook member 32 moves relatively to the second stable position 3113 connected to the button member 31, thereby ensuring the locking of the operating wire 23, that is, the button member 31 conflicts with the winding wheel 22 to maintain the inner The bending angle determined at the far end of the endoscope, when the user needs to adjust the position of the operating wire 23, the user can continue to press the button member 31 to overcome the elastic force of the first elastic element 34, so that the button member 31 slides relative to the housing 1 along the second direction away from the release winding wheel 22. At the same time, the first elastic element 34 acts on the button member 31 to move, so that the first stable position 3111 is close to the hook member 32, and the hook member 32 moves relatively to the first stable position 3111 on the button member 31 to release the lock of the operating wire 23, that is, the button member 31 is separated from the winding wheel 22, and then the bending control is implemented. The locking and unlocking of the operating wire 23 can be achieved by pressing the button member 31, so as to achieve the purpose of locking the bending angle and the bending control. The pressing method is convenient for the user's finger to exert force, which can improve the reliability and stability of the control operation.

[0060] See also Figure 1 , Figure 7 and Figure 8The positioning component 3 also includes a first guide rod 33, one end of which is fixedly connected to the button member 31, and the other end of which is slidably inserted into the housing 1; the button member 31 is provided with one or more first guide rods 33, and the housing 1 is provided with first guide holes that match the shape and number of the first guide rods 33, so that the button member 31 can move along a specified path relative to the housing 1. Of course, the button member 31 can be provided with one or more guide holes, and the housing 1 is provided with guide rods that match the shape and number thereof, so that the button member 31 can move along a specified path relative to the housing 1. One end of the first elastic element 34 acts on the button member 31, and the other end acts on the housing 1, and the first elastic element 34 provides elastic force along the second direction to the button member 31.

[0061] The first elastic element 34 may be a compression spring, or may be a tension spring, a torsion spring, a constant force spring, a gas spring, a spring sheet, or other element capable of providing elastic force to the button member 31 .

[0062] In some embodiments, see Figure 7 and Figure 8 The winding wheel 22 is provided with an abutment portion 221, which is arranged on the path of the button member 31 moving along its first direction; the positioning component 3 also includes a friction block 35, which is connected to the side of the button member 31 moving toward the abutment portion 221.

[0063] See also Figure 7 and Figure 8 The friction block 35 is movably disposed on the button member 31 , and the friction block 35 can be moved closer to or farther from the abutment portion 221 of the winding wheel 22 relative to the button member 31 .

[0064] See also Fig. 9 The friction block 35 has a friction surface 351 on the outer wall facing the winding wheel 22. The shape of the friction surface 351 can be the same as or similar to the shape of the abutting portion 221. Of course, it can also be other curved or flat shapes that can provide friction.

[0065] Further, see Figure 7 and Figure 8 The positioning component 3 also includes a second elastic element 36 and a second guide rod 37. One end of the second guide rod 37 is fixedly connected to the button member 31, and the other end of the second guide rod 37 is slidably connected to the friction block 35. The second elastic element 36 is sleeved on the second guide rod 37, and the second elastic element 36 is connected between the button member 31 and the friction block 35.

[0066] In a specific embodiment, one or more second guide rods 37 are provided on the button member 31 , and the friction block 35 is provided with second guide holes matching the number and shape of the second guide rods 37 , so that the friction block 35 can move relative to the button member 31 .

[0067] The second elastic element 36 is used to press the friction block 35 when the friction block 35 contacts the abutment portion 221 ; the second elastic element 36 can be a compression spring, or a tension spring, a torsion spring, a constant force spring, a gas spring, a spring sheet, or the like that can provide elastic force to the button member 31 .

[0068] In a specific embodiment, see Figure 7 and Figure 8 The second guide rod 37 is provided with a limiting portion 371, which is arranged on the path of the friction block 35 moving toward the winding wheel 22. A limiting block is arranged in the slideway where the friction block 35 slides corresponding to the end of the second guide rod 37. The limiting portion 371 and the limiting block are close to each other, so that the friction block 35 and the second guide rod 37 are relatively stopped. Specifically, the limiting portion 371 is arranged at one end of the friction block 35 stroke close to the abutting portion 221, so as to limit the friction block 35. This arrangement can enhance the stability of the structure operation and help to avoid failure of the connection between the second guide rod 37 and the friction block 35.

[0069] In this embodiment, the bending adjustment operating device can be in a locked state or an unlocked state under the action of the button member 31; in the locked state, the hook member 32 is hooked at the second stable position 3113 of the button member 31 to limit and lock the winding wheel 22 on the friction block 35, thereby corresponding to the locking operation line 23 to maintain the bending angle; in the unlocked state, the hook member 32 is hooked at the first stable position 3111 of the button member 31, and the friction block 35 is disengaged from the limit lock on the winding wheel 22, so that the bending adjustment component 2 can implement the bending adjustment.

[0070] The bending adjustment operation device provided in this embodiment is used as follows:

[0071] When the hanging portion 321 stays in the first stable position 3111, there is a certain gap between the friction block 35 and the abutting portion 221 of the winding wheel 22, and the bending knob 21 and the winding wheel 22 can be relatively unlocked; when it is necessary to lock the bending angle, the user presses the button member 31 to make the button member 31 move in the first direction, that is, move toward the inner cavity of the shell 1. At this time, the hanging portion 321 moves to the first intermediate position 3112 under the guidance of the first guide surface 3115. Then the user releases the button member 31. Under the action of the first elastic element 34, the button member 31 moves in the second direction, that is, moves away from the inner cavity of the shell 1. The hanging portion 321 moves to the second stable position 3113 under the guidance of the second guide surface 3116, and stays stably in the second stable position 3113 under the action of the first elastic element 34. The friction surface 351 of the friction block 35 abuts against the abutting portion 221 of the winding wheel 22. The connecting portion 221 is subjected to the friction force of the friction surface 351, and the bending knob 21 and the winding wheel 22 are relatively locked, thereby achieving the locking of the bending angle; when the bending angle needs to be operated, the user can press the button member 31 again, and the button member 31 moves in the first direction, that is, moves toward the inner cavity of the shell 1, and the hanging portion 321 moves to the second intermediate position 3114 under the guidance of the third guide surface 3117. Then the user releases the button member 31, and under the action of the first elastic element 34, the button member 31 moves in the second direction, that is, moves away from the inner cavity of the shell 1, and the hanging portion 321 returns to the first stable position 3111 under the guidance of the fourth guide surface 3118, and stays stably in the first stable position 3111 under the action of the first elastic element 34, and the bending knob 21 and the winding wheel 22 are restored to relative unlocking, and then the bending knob 21 is operated to drive the operating wire 23 to implement the bending.

[0072] In the above description, when the user presses the button member 31, the button member 31 moves toward the inner cavity of the shell 1, and the movement direction is set to the first direction; when the user releases the button member 31, the button member 31 moves toward the outside of the shell 1 under the elastic action of the first elastic element 34, and the movement direction is set to the second direction.

[0073] In the bending operation device provided in this embodiment, the user only needs to use the index finger to lightly press the button 31 to achieve the locking and unlocking operation of the bending knob 21. Compared with the method of using the index finger to turn the locking knob in the traditional technology, this embodiment uses the index finger to apply force, which is more ergonomic, simpler and more convenient to operate, and brings a more comfortable experience to the user.

[0074] Compared with the traditional locking knob, the bending operation device provided in this embodiment does not require a large lever arm, thereby greatly reducing the sweeping space during operation and reducing the labor intensity of the user. In addition, the bending operation device has a simple structure, making the entire endoscope operating unit more compact and lightweight.

[0075] Example 2

[0076] This embodiment provides an endoscope, including the bending operation device of embodiment 1. The operating wire 23 of the bending operation device is connected to a bending portion not shown in the figure at the far end, and the endoscope implements the working mode of bending control and locking the bending angle, which reduces the labor intensity of the user and is easy to operate. The endoscope described in this embodiment includes an electronic endoscope, an ultrasonic endoscope or an ultrasonic bronchoscope, etc.; the electronic endoscope may include an upper gastrointestinal endoscope, a lower gastrointestinal endoscope, an animal endoscope, etc.

[0077] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A bending operation device, characterized in that: include: Housing (1); The bending adjustment component (2) comprises a winding wheel (22) and an operating wire (23) which are fixedly connected to each other, wherein the winding wheel (22) is suitable for driving the operating wire (23) to be wound on the winding wheel (22) to implement bending adjustment control; A positioning component (3), comprising a button member (31), a hook member (32) and a first elastic element (34); the button member (31) and the housing (1) are slidably arranged; one end of the hook member (32) is movably connected in the housing (1); the other end of the hook member (32) is connected to the button member (31); one end of the first elastic element (34) is elastically abutted against the button member (31); and the other end of the first elastic element (34) is elastically abutted against the housing (1); during the relative sliding stroke between the button member (31) and the housing (1), the hook member (32) can move between a first stable position (3111) and a second stable position (3113) of the button member (31); The button member (31) is configured to be able to slide relative to the shell (1) in a first direction to approach the limiting winding wheel (22), and to make the hook member (32) hooked at the first stable position (3111) to lock the operating line (23), and to be able to slide relative to the shell (1) in a second direction to release the winding wheel (22), and to make the hook member (32) hooked at the second stable position (3113) to unlock the operating line (23), and the first direction and the second direction are arranged opposite to each other.

2. The bending operation device according to claim 1, characterized in that: The button member (31) is provided with a connecting portion (311), and the hook member (32) is provided with a hanging portion (321) on a side close to the button member (31), and the hanging portion (321) is slidably arranged in the connecting portion (311).

3. The bending operation device according to claim 2, characterized in that: The connecting portion (311) is provided with a slide groove structure, and the slide groove structure includes a first guide section and a second guide section, and either guide section is suitable for slidingly setting with the hanging portion (321), and the first guide section is set in the direction of the hanging portion (321) switching from the second stable position (3113) to the first stable position (3111), and the second guide section is set in the direction of the hanging portion (321) switching from the first stable position (3111) to the second stable position (3113).

4. The bending operation device according to claim 3, characterized in that: A positioning block (3119) is provided in the slide groove structure, and a positioning groove for forming the first stable position (3111) is constructed on the positioning block (3119); The slide groove structure also includes an inner convex structure (31110) arranged toward the positioning groove, the inner convex structure (31110) and the positioning block (3119) are arranged at intervals, and a track for the hanging part (321) to slide is provided between the inner wall surface of the slide groove structure and the outer wall surface of the positioning block (3119); The slide groove structure is constructed to form a connecting groove of the second stable position (3113), and the second stable position (3113) is arranged on a side of the first stable position (3111) close to the winding wheel (22).

5. The bending operation device according to any one of claims 1 to 4, characterized in that: The positioning component (3) also includes a first guide rod (33), at least one of which is provided, and the first elastic element (34) and the first guide rod (33) are provided correspondingly; one end of the first guide rod (33) is fixedly connected to the button member (31), the other end of the first guide rod (33) is slidably inserted into the housing (1), and the first elastic element (34) is sleeved and installed on the first guide rod (33).

6. The bending operation device according to any one of claims 1 to 4, characterized in that: The winding wheel (22) is provided with an abutment portion (221), and the abutment portion (221) is arranged on a path along which the button member (31) moves in a first direction; The positioning component (3) further comprises a friction block (35), the friction block (35) being connected to the side of the button component (31) moving toward the abutment portion (221), the friction block (35) being provided with a friction surface (351), the friction surface (351) being conformally arranged to the outer wall surface of the abutment portion (221).

7. The bending operation device according to claim 6, characterized in that: The positioning component (3) further comprises a second elastic element (36) and a second guide rod (37); one end of the second guide rod (37) is fixedly connected to the button component (31); the other end of the second guide rod (37) is slidably connected to the friction block (35); the second elastic element (36) is sleeved on the second guide rod (37); and the second elastic element (36) is connected between the button component (31) and the friction block (35).

8. The bending operation device according to claim 7, characterized in that: The second guide rod (37) is provided with a limiting portion (371), the limiting portion (371) being arranged on a path where the friction block (35) moves toward the winding wheel (22), and the limiting portion (371) is used to stop the friction block (35).

9. The bending operation device according to any one of claims 1 to 4, characterized in that: The bending adjustment component (2) further comprises a bending adjustment knob (21), wherein the bending adjustment knob (21) is rotatably arranged on the outside of the housing (1), and the bending adjustment knob (21) is fixedly connected to the winding wheel (22); and / or The housing (1) is provided with a receiving chamber (11), the winding wheel (22) and the hook member (32) are arranged in the receiving chamber (11), and at least a portion of the button member (31) extends into the receiving chamber (11) to connect with the hook member (32); and / or A sleeve (12) is fixedly disposed in the housing (1), and the operating wire (23) is slidably disposed in the sleeve (12).

10. An endoscope, characterized in that: It comprises the bending operation device as described in any one of claims 1-9.

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