Endoscope key structure and endoscope

Abstract

The invention provides an endoscope key structure and an endoscope, the endoscope key structure comprises a key support, a key base and a switch assembly, the key support and the key base are used for installing the switch assembly, a shell key hole of an endoscope operation part is provided with an installation nut, and the installation nut is used for installing the switch assembly. The mounting nut, the key support and the key base are sequentially arranged from outside to inside, the mounting nut is in threaded connection with the key support, and the key base is in threaded connection with the key support. According to the endoscope key structure and the endoscope provided by the invention, the endoscope key structure is in threaded connection with the key hole of the shell, the key support and the key base are in threaded connection with each other and do not need to extend into the operation part, the internal space of the operation part is not occupied, and the endoscope key structure and the endoscope are relatively convenient to mount; installation of the endoscope key structure can be completed directly in a threaded locking mode.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and more specifically, relates to an endoscope button structure and an endoscope. Background Art

[0002] In the medical field, endoscopes are widely used for diagnosis or treatment within the patient's body cavity, wherein the operating part of the endoscope is mainly used to realize the operator's functional requirements for the endoscope, and the button device on the operating part mainly realizes the various functions assigned by the supporting device.

[0003] The operating part of the endoscope is small in size and integrates multiple functions, so its internal space is tight. The base of the current button structure generally extends into the interior of the operating part, hindering the compact and lightweight design of the buttons and the operating part, and the assembly and assembly of the button base is more difficult. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an endoscope button structure and an endoscope to solve the technical problems in the prior art that the button base occupies a large internal space of the operating part and the button base is difficult to assemble.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an endoscope button structure, which is used to be installed at the button hole of the shell of the operating part of the endoscope, and the button hole has a mounting nut. The endoscope button structure includes a button support, a button base and a switch assembly. The button support and the button base are used to install the switch assembly. The button hole has a mounting nut. The mounting nut, the button support and the button base are arranged in sequence from the outside to the inside. The mounting nut is threadedly connected to the button support, and the button base is threadedly connected to the button support.

[0006] In the above scheme, the endoscope button structure includes a button support, a button base and a switch assembly. The button support and the button base are both used to install the switch assembly. The button support is threadedly connected to the mounting nut at the button hole. The button base is located in the button support and is threadedly connected to the button support. In this way, the endoscope button structure is connected to the button hole of the shell by threaded connection. The button support and the button base are threadedly connected to each other, and neither of them needs to extend into the interior of the operating part, so they will not occupy the space inside the operating part. Moreover, the installation is relatively convenient, and the installation of the endoscope button structure can be completed directly by thread locking.

[0007] Optionally, the button support and the button base do not protrude from the inner wall of the shell near the button hole.

[0008] In the above solution, by making the key support and the key base not extend into the accommodation space in the housing, the accommodation space in the housing can be completely released, and it is more likely to achieve miniaturization of the operating part.

[0009] Optionally, the inner wall of the shell adjacent to the button hole, the mounting nut facing the inner side of the shell, the button support facing the inner side of the shell, and the button base facing the inner side of the shell are arranged flush.

[0010] In the above scheme, the inner wall of the shell adjacent to the button hole, the mounting nut, the button support and the button base facing the inside of the shell are all arranged flush and will not extend into the accommodating space. Under the premise of completely releasing the internal space of the operating part, the space inside the button hole is utilized as much as possible.

[0011] Optionally, the button support includes a mounting seat and a first bracket, the mounting nut, the mounting seat, the first bracket and the button base are arranged in sequence from the outside to the inside, and the mounting seat and the first bracket are threadedly connected; the mounting nut has a first internal thread, the mounting seat has a first external thread matching the first internal thread, the mounting seat also has a second internal thread, the first bracket has a second external thread matching the second internal thread, the first bracket also has a third internal thread, and the button base has a third external thread matching the third internal thread.

[0012] In the above scheme, the button support needs to be threadedly connected with the mounting nut and the button base, and also has the function of installing the switch assembly. Therefore, the structure of the button support is relatively complex and not easy to process. Setting the button support as a threaded mounting base and a first bracket can reduce the processing difficulty without increasing the assembly difficulty of the button structure.

[0013] Optionally, the endoscope button structure further includes a deformable button shell and a second bracket arranged inside the button shell.

[0014] The button housing is fixedly connected to the mounting seat.

[0015] The switch assembly includes a switch body fixed to the key base, a lever, and a trigger sheet in contact with the switch body.

[0016] One end of the lever abuts against the trigger sheet, and the end of the lever is located in the first bracket.

[0017] The other end of the lever extends into the second bracket and is moved by the second bracket.

[0018] The second bracket has a second bracket cavity, and the second bracket cavity has a cavity opening for the lever to extend into.

[0019] One end of the shifting rod extending into the second bracket cavity has a first radial protrusion, and the first radial protrusion is located at the opening of the cavity and is used to abut against the inner wall of the opening of the cavity.

[0020] In the above scheme, by pushing the key shell to deform the key shell, the second bracket can be pushed to drive the lever to swing, and the second bracket can be driven to return to the initial state under the action of the restoring force of the key shell. By setting the first radial protrusion, the minimum distance between the inner wall of the opening of the peripheral cavity of the lever can be reduced, so that when the stroke of the second bracket is small, the lever can still be pushed to swing.

[0021] Optionally, an isolation member for separating the second bracket and the shifting rod is fixed inside the second bracket cavity, and the isolation member includes a circumferential isolation wall circumferentially arranged on the inner wall of the second bracket cavity, and the shifting rod contacts the circumferential isolation wall when swinging.

[0022] In the above solution, by providing a spacer between the second bracket and the lever, direct contact between the second bracket and the lever can be avoided. When the second bracket and the lever are both metal parts, friction between the two metal parts can be avoided, thereby reducing abnormal noise when the lever is moved. In addition, by providing a circumferential spacer wall, the movement stroke of the lever in the first direction can be reduced, so that the lever can be moved more quickly.

[0023] Optionally, the isolation member further includes an isolation end wall, which blocks an end of the circumferential isolation wall away from the cavity opening, and the isolation end wall and the circumferential isolation wall enclose a swing space, and one end of the shifting rod is located in the swing space.

[0024] In the above scheme, by setting the isolating end wall, the isolating member is a tubular structure with one end closed, which facilitates the installation of the isolating member and prevents the end of the lever from passing through the top of the isolating member and contacting the bracket tube.

[0025] Optionally, the first bracket has a first bracket cavity that is arranged along both axial ends thereof, and the first bracket cavity includes a first aperture section, a second aperture section, a third aperture section and a fourth aperture section that are connected in sequence and have gradually increasing inner diameters; one end of the shift rod has a second radial protrusion formed by the center of the shift rod protruding radially outward, the shift rod passes through the first aperture section, and the second radial protrusion is located in the second aperture section, a limiting step between the first aperture section and the second aperture section is used to axially limit the second radial protrusion, the trigger plate is located in the third aperture section, and the limiting step between the second aperture section and the third aperture section is used to axially limit the trigger plate, and the third internal thread is located on the inner circumferential wall of the fourth aperture section.

[0026] In the above solution, by designing the first bracket cavity in the first bracket as a cavity with a variable inner diameter, the first bracket can axially limit the trigger piece, the lever, etc. of the switch assembly, thereby realizing the positioning of the switch assembly.

[0027] The present invention also provides an endoscope button structure, which is used to be installed at the button hole of the housing of the operating part of the endoscope.

[0028] The key housing comprises a deformable key housing, a key support fixedly connected to the key housing, a key base arranged in the key support, a second support arranged inside the key housing, and a switch assembly.

[0029] The button support is used to be installed at the button hole.

[0030] The switch assembly includes a switch body fixed to the key base, a trigger sheet in contact with the switch body, and a lever pushed by the second bracket.

[0031] One end of the lever away from the second bracket abuts against the trigger sheet, and the end of the lever is located in the button support.

[0032] The other end of the lever extends into the second bracket and is moved by the second bracket.

[0033] The second bracket has a second bracket cavity, an isolating member for isolating the second bracket and the shifting rod is fixed inside the second bracket cavity, and the shifting rod extends into the interior of the isolating member.

[0034] One end of the lever extending into the interior of the isolating member has a first radial protrusion, and the first radial protrusion is located at the opening of the isolating member and is used to abut against the inner wall of the opening of the isolating member.

[0035] The present invention also provides an endoscope, including an operating part, a shell of the operating part having a plurality of button holes, the button holes having mounting nuts, at least one of the button holes having the above-mentioned endoscope button structure installed therein, the endoscope button structure being threadedly connected to the mounting nut.

[0036] In the above scheme, the endoscope button structure is connected to the button hole of the shell by means of a threaded connection, the button support and the button base are threadedly connected to each other, and both do not need to extend into the interior of the operating part, will not occupy the space inside the operating part, and the installation is also relatively convenient, and the installation of the endoscope button structure can be completed directly by means of thread locking.

[0037] Optionally, the shell and the mounting nut are integrally formed; or, the shell and the mounting nut are separately formed and fixed to each other.

[0038] In the above solution, the mounting nut and the housing can be formed separately or integrally, as long as the button hole of the housing has a first internal thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 these drawings without paying creative work.

[0040] Figure 1 A cross-sectional view of the endoscope button structure provided by an embodiment of the present invention in an initial state;

[0041] Figure 2 A cross-sectional view of the endoscope button structure provided by an embodiment of the present invention in a triggered state;

[0042] Figure 3 An exploded structural diagram of an endoscope button structure provided by an embodiment of the present invention;

[0043] Figure 4 A cross-sectional view of a key housing and a mounting base provided in an embodiment of the present invention;

[0044] Figure 5 A three-dimensional structural diagram of a lever provided in an embodiment of the present invention;

[0045] Figure 6 A three-dimensional cross-sectional view of a first bracket provided in an embodiment of the present invention;

[0046] Figure 7 A partial structural cross-sectional view of an endoscope operating unit provided by an embodiment of the present invention;

[0047] Figure 8 A three-dimensional structural diagram of an endoscope operating unit provided by an embodiment of the present invention;

[0048] Fig. 9 A schematic diagram of the structure of an endoscope provided in an embodiment of the present invention.

[0049] Among them, the reference numerals in the figure are:

[0050] 100-endoscope button structure; 10-button support; 11-mounting seat; 111-first external thread; 112-second internal thread; 12-first bracket; 121-second external thread; 122-third internal thread; 123-first bracket cavity; 1231-first aperture section; 1232-second aperture section; 1233-third aperture section; 1234-fourth aperture section; 124-assembly hole; 20-button base; 21-third external thread; 30-button housing; 40-switch assembly; 41-shift lever; 411-first radial protrusion; 412-second radial protrusion; 42-trigger sheet; 43-switch body; 50-second bracket; 51-pushing part; 52-bracket tube; 520-second bracket cavity; 60-isolating member; 61-circumferential isolating wall; 610-swinging space; 62-isolating end wall;

[0051] 200 - operating part; 201 - housing; 202 - mounting nut; 203 - key hole; 204 - first internal thread. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0054] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] In the medical field, endoscopes are widely used for diagnosis or treatment within the patient's body cavity, wherein the operating part of the endoscope is mainly used to realize the operator's functional requirements for the endoscope, and the button device on the operating part mainly realizes various functions assigned by the peripheral devices.

[0057] The operating part of the endoscope is small in size and integrates multiple functions, so its internal space is tight. The base of the current button structure generally extends into the interior of the operating part, hindering the compact and lightweight design of the buttons and the operating part, and the assembly and assembly of the button base is more difficult.

[0058] In order to solve the above technical problems, the present invention proposes an endoscope button structure 100 and an endoscope. The endoscope button structure 100 includes a button support 10, a button base 20 and a switch assembly 40. The housing 201 of the endoscope has a button hole 203. The button support 10 is threadedly connected to the mounting nut 202 in the button hole 203. The button base 20 is arranged in the button support 10 and the two are also threadedly connected to each other. The switch assembly 40 is installed on the button support 10 and the button base 20. The main components of the endoscope button structure 100 can be fixed by threaded connection, and the endoscope button structure 100 can also be fixed to the button hole 203 as a whole by threaded connection. Therefore, the assembly of the button structure is simple, and the threaded connection structure will not occupy the structural space inside the housing 201 (inside the operating part 200) after the installation is completed, which is conducive to the miniaturization and lightweight of the operating part 200.

[0059] The endoscope button structure 100 provided in an embodiment of the present invention is now described. The endoscope button structure 100 is used to be installed at a button hole 203 of a shell 201 of an operating part 200 of an endoscope, and a mounting nut 202 is provided at the button hole 203. When the endoscope button structure 100 is applied to the operating part 200, the shell 201 is the outer shell of the operating part 200. When the button structure is triggered, the position or angle of the endoscope can be controlled.

[0060] Please also read Figures 1 to 3 The endoscope button structure 100 includes a button support 10, a button base 20 and a switch assembly 40. The button support 10 and the button base 20 are used to install the switch assembly 40. The mounting nut 202, the button support 10 and the button base 20 are sequentially arranged from the outside to the inside. The mounting nut 202 is threadedly connected to the button support 10, and the button base 20 is threadedly connected to the button support 10. The mounting nut 202 is away from its central axis to close to its central axis, which can be understood as "from the outside to the inside".

[0061] A mounting nut 202 is disposed at the button hole 203 of the housing 201 . The mounting nut 202 has a first internal thread 204 to achieve a threaded connection between the endoscope button structure 100 and the housing 201 .

[0062] The button support 10 is threadedly connected to the button hole 203 of the housing 201 to achieve the threaded connection between the endoscope button structure 100 and the housing 201. The button support 10 can also be used to install the switch assembly 40. The button support 10 is located inside the button hole 203 to facilitate the threaded connection between the button support 10 and the button hole 203.

[0063] The key base 20 is disposed inside the key support 10 , and the key base 20 is threadedly connected to the key support 10 . The key base 20 can also be used for installing the switch assembly 40 .

[0064] When installing the endoscope button structure 100, the switch assembly 40 can be first installed on the button support 10 and the button base 20 respectively, and then the button support 10 and the button base 20 are threadedly connected, and finally the endoscope button structure 100 is threadedly connected to the button hole 203 of the housing 201. Therefore, the assembly structure of the endoscope button structure 100 is simple and can be easily installed at the button hole 203 of the housing 201. At the same time, the mounting nut 202 on the housing 201 is threadedly connected to the button support 10, and the button support 10 is threadedly connected to the button base 20, so that the button support 10 and the button base 20 can only occupy the space inside the button hole 203, and do not need to extend into the interior of the housing 201, and will not occupy or occupy too much of the accommodation space inside the housing 201.

[0065] The endoscope button structure 100 in the above embodiment includes a button support 10, a button base 20 and a switch assembly 40. The button support 10 and the button base 20 are both used to install the switch assembly 40. The button support 10 is threadedly connected to the mounting nut 202 at the button hole 203. The button base 20 is located in the button support 10 and is threadedly connected to the button support 10. In this way, the endoscope button structure 100 is connected to the button hole 203 of the housing 201 by threaded connection. The button support 10 and the button base 20 are threadedly connected to each other, and both do not need to extend into the interior of the operating part 200, and will not occupy the space inside the operating part 200. Moreover, the installation is also relatively convenient, and the installation of the endoscope button structure 100 can be completed directly by thread locking.

[0066] In some embodiments of the present invention, see Figure 1 and Figure 2, the button support 10 and the button base 20 do not protrude from the inner wall of the housing 201 near the button hole 203. The housing 201 can enclose a storage space, the button hole 203 is connected to the storage space, the side of the housing 201 facing the storage space is the inner wall of the housing 201, and the side of the housing 201 facing away from the storage space is the outer wall of the housing 201. When the endoscope button structure 100 is installed at the button hole 203, the button support 10 and the button base 20 are adjacent to the inner wall of the housing 201 at the button hole 203. The button support 10 and the button base 20 do not protrude from the inner wall of the housing 201 at the button hole 203, which can be understood as the button support 10 and the button base 20 do not exceed the axial end of the button hole 203 near the storage space, and do not extend into the storage space, thereby releasing the internal space of the operating part 200, which is conducive to the miniaturization of the operating part 200.

[0067] By making the key support 10 and the key base 20 not extend into the accommodation space in the housing 201 , the accommodation space in the housing 201 can be completely released, and it is more likely to achieve miniaturization of the operating unit 200 .

[0068] In some embodiments, see Figure 1 and Figure 2 The inner wall of the housing 201 adjacent to the key hole 203, the side of the mounting nut 202 facing the inside of the housing 201, the side of the key support 10 facing the inside of the housing 201, and the side of the key base 20 facing the inside of the housing 201 are arranged flush. The side facing the inside of the housing 201 is the side facing the accommodation space of the housing 201. The flush arrangement means that each wall surface is on the same plane, neither protruding from the plane nor sunken into the plane.

[0069] The inner wall of the shell 201 adjacent to the button hole 203, the mounting nut 202, the button support 10 and the button base 20 on the side facing the interior of the shell 201 are all arranged flush and will not extend into the accommodating space. On the premise of completely releasing the internal space of the operating part 200, the space inside the button hole 203 is utilized as much as possible.

[0070] In some embodiments, the inner wall of the housing 201 adjacent to the button hole 203 can be called a reference plane, and at least one of the side of the mounting nut 202 facing the inside of the housing 201, the side of the button support 10 facing the inside of the housing 201, and the side of the button base 20 facing the inside of the housing 201 is sunken into the reference plane, that is, at least one of the above three side surfaces is farther away from the accommodation space than the reference plane. In this way, the button support 10, the button base 20, the mounting nut 202, etc., will not occupy the accommodation space.

[0071] In other embodiments of the present invention, one of the key support 10 and the key base 20 extends into the accommodation space, occupying part of the accommodation space in the housing 201 .

[0072] In some embodiments of the present invention, see Figures 1 to 3 The key support 10 includes a mounting seat 11 and a first bracket 12. The mounting nut 202, the mounting seat 11, the first bracket 12 and the key base 20 are arranged in sequence from outside to inside. The mounting seat 11 and the first bracket 12 are threadedly connected; the mounting nut 202 has a first internal thread 204, the mounting seat 11 has a first external thread 111 that matches the first internal thread 204, the mounting seat 11 also has a second internal thread 112, the first bracket 12 has a second external thread 121 that matches the second internal thread 112, the first bracket 12 also has a third internal thread 122, and the key base 20 has a third external thread 21 that matches the third internal thread 122. The mounting seat 11 is threadedly connected to the mounting nut 202, the first bracket 12 is used to install the switch assembly 40, and at the same time, the first bracket 12 is arranged inside the mounting seat 11 and is threadedly connected to the first bracket 12. When assembling the endoscope button structure 100, first install the switch assembly 40 on the button base 20 and the first bracket 12 respectively, then thread the button base 20 to the first bracket 12, and then thread the formed assembly to the mounting seat 11 to form the endoscope button structure 100, and finally thread the endoscope button structure 100 to the button hole 203.

[0073] The button support 10 needs to be threadedly connected with the mounting nut 202 and the button base 20, and also has the function of installing the switch assembly 40. Therefore, the structure of the button support 10 is relatively complex and not easy to process. Setting the button support 10 as a threaded mounting base 11 and a first bracket 12 can reduce the processing difficulty without increasing the assembly difficulty of the button structure.

[0074] In some embodiments, the first internal thread 204 and the first external thread 111 are right-hand threads, which are the same as the general thread direction, so as to facilitate the overall installation of the endoscope button structure 100.

[0075] Optionally, the second internal thread 112 and the second external thread 121 are left-hand threads, which can prevent the first bracket 12 and the mounting seat 11 from being loosened from each other during the threaded connection assembly step.

[0076] Optionally, the third internal thread 122 and the third external thread 21 are right-hand threads, which are the same as the general thread direction, so as to facilitate the mutual assembly of the button base 20 and the first bracket 12 .

[0077] In other embodiments, the first internal thread 204 and the first external thread 111 are left-handed threads, the second internal thread 112 and the second external thread 121 are right-handed threads, and the third internal thread 122 and the third external thread 21 may also both be left-handed threads.

[0078] In some embodiments of the present invention, the mounting nut 202, the mounting seat 11, the first bracket 12 and the button base 20 are all made of metal. The threaded connection structure between the metal materials is relatively stable and is not prone to thread slippage.

[0079] In some embodiments of the present invention, see Figures 1 to 5 The endoscope button structure 100 also includes a deformable button shell 30 and a second bracket 50 arranged inside the button shell 30. The button shell 30 is fixedly connected to the mounting seat 11. The switch assembly 40 includes a switch body 43 fixed to the button base 20, a lever 41, and a trigger sheet 42 in contact with the switch body 43. One end of the lever 41 abuts against the trigger sheet 42, and the end of the lever 41 is located in the first bracket 12. The other end of the lever 41 extends into the second bracket 50 and is toggled by the second bracket 50. The second bracket 50 has a second bracket cavity 520. The second bracket cavity 520 has a cavity opening for the lever 41 to extend into. One end of the lever 41 extending into the second bracket cavity 520 has a first radial protrusion 411. The first radial protrusion 411 is located at the cavity opening and is used to abut against the inner wall of the cavity opening.

[0080] The button housing 30 and the mounting seat 11 are fixedly connected to form the exposed part of the endoscope button structure 100. When an external force acts on the button housing 30, it can be deformed, and accordingly, the second bracket 50 can be pushed through the button housing 30, and the second bracket 50 correspondingly pushes the lever 41 to swing. The end of the lever 41 that is moved by the second bracket 50 is the first end of the lever 41, and the end of the lever 41 that abuts against the trigger sheet 42 is the second end of the lever 41. When the lever 41 moves, it can cause the trigger sheet 42 to move accordingly, thereby triggering the switch body 43.

[0081] When the external force pushes the key housing 30 in the first direction, the key housing 30 is deformed, and the second bracket 50 inside the key housing 30 moves in the first direction, thereby driving the first end of the lever 41 to swing in the first direction. When the lever 41 swings in the first direction, it can push the trigger sheet 42, thereby triggering the switch body 43 ( Figure 2 When the external force in the first direction disappears, the key housing 30 can recover by itself, and accordingly drives the second bracket 50 and the lever 41 to recover to the initial position ( Figure 1 When the external force pushes the key housing 30 in the second direction, the key housing 30 is deformed, and the second bracket 50 inside the key housing 30 moves in the second direction, thereby driving the lever 41 to move in the second direction, thereby pushing the trigger sheet 42 and triggering the switch body 43.

[0082] By pushing the key housing 30 to deform the key housing 30 , the second bracket 50 can be pushed to drive the lever 41 to swing, and the second bracket 50 can be driven to return to the initial state under the action of the restoring force of the key housing 30 .

[0083] The first radial protrusion 411 is formed by the center of the lever 41 protruding outward in the radial direction thereof. The center of the lever 41 can be understood as the central axis of the lever 41, that is, the center of the lever 41 in the radial direction thereof. In view of the fact that the first radial protrusion 411 in this embodiment is located in the second bracket cavity 520, the center of the lever 41 is the central axis at the first end of the lever 41. The outer diameter of the first radial protrusion 411 is greater than the outer diameter of the vicinity of the lever 41, so that it is a protruding structure.

[0084] The first radial protrusion 411 can be provided to reduce the minimum distance between the outer periphery of the lever 41 and the inner wall of the opening of the second bracket cavity 520 , so that the lever 41 can still be pushed to swing when the stroke of the second bracket 50 is small.

[0085] In some embodiments, the first direction is a horizontal direction, and the second direction is a vertical direction. The endoscope button structure 100 realizes the same function or different functions when triggered in the first direction and the second direction.

[0086] In some embodiments, the button housing 30 is made of a deformable material such as silicone or rubber, and has a certain self-recovery ability, and can drive the lever 41 and the second bracket 50 to return to their original state after the second bracket 50 pushes the lever 41 to the trigger state.

[0087] In some embodiments, the key housing 30 and the mounting seat 11 are fixed to each other by means of rubber coating. Specifically, the key housing 30 is made of soft material, and the mounting seat 11 is made of hard material. After the mounting seat 11 is formed, the mounting seat 11 is placed in the mold cavity, and the key housing 30 is formed by in-mold injection molding and rubber coating, which not only enables the key housing 30 and the mounting seat 11 to be stably connected, but also has better sealing performance.

[0088] In some embodiments, the lever 41 and the trigger sheet 42 abut against each other. When the lever 41 swings, the angle of the lever 41 changes, and the lever 41 squeezes the trigger sheet 42 so that the trigger sheet 42 triggers the switch body 43 .

[0089] In some embodiments, both axial ends of the first radial protrusion 411 are chamfered so that both axial ends of the first radial protrusion 411 are conical and both axial ends of the first radial protrusion 411 are smoothly arranged to prevent it from being stuck in the second bracket cavity 520.

[0090] In some embodiments of the present invention, see Figure 2, when the endoscope button structure 100 is converted from the initial state to the trigger state, the stroke of the second bracket 50 in the first direction is S, the rotation angle of the lever 41 is a, and the distance between the contact point between the lever 41 and the second bracket 50 and the rotation center of the lever 41 is L, then S=sina·L, the minimum angle of the lever 41 required when the switch body 43 is triggered is determined, that is, the rotation angle a of the lever 41 is determined. If it is necessary to reduce the stroke S of the second bracket 50 in the first direction so that the user can trigger the switch body 43 more quickly and in a short distance, the distance L needs to be reduced. In the embodiment of the present invention, the thickness of the button base 20 can be easily increased, thereby reducing the distance L and reducing the push stroke of the button structure in the first direction. In the related art, it is difficult to reduce the push stroke by increasing the thickness of the button base 20.

[0091] In some embodiments of the present invention, see Figure 4 The second bracket 50 includes a push portion 51 and a bracket tube 52 that are fixedly connected to each other. The push portion 51 is connected to the key housing 30. The bracket tube 52 has the second bracket cavity 520 mentioned above. One end of the lever 41 extends into the second bracket cavity 520. The key housing 30 and the push portion 51 move synchronously. When an external force pushes the key housing 30 in a first direction, the push portion 51 is also acted upon by the external force and moves in the first direction. The bracket tube 52 also moves synchronously and drives the lever 41 to swing.

[0092] By providing the second bracket cavity 520 , one end of the lever 41 is extended into the interior of the second bracket 50 , and the lever 41 is pushed during the movement of the second bracket 50 .

[0093] In some embodiments, the pushing portion 51 is in the shape of a plate or a block and can be pushed by an external force.

[0094] In some embodiments, the key housing 30 is coated with rubber and fixed to the pushing portion 51 to achieve a fixed connection between the key housing 30 and the second bracket 50 .

[0095] In some embodiments, the support tube 52 is cylindrical, which can allow the lever 41 to extend into and is easy to process.

[0096] In some embodiments, the second bracket 50 is made of metal, which has high strength, can withstand more pushes, and has a longer service life.

[0097] In some embodiments of the present invention, see Figure 1 and Figure 2An isolating member 60 for isolating the second bracket 50 and the lever 41 is fixed inside the bracket tube 52. The isolating member 60 includes a circumferential isolating wall 61 circumferentially arranged on the inner wall of the second bracket cavity 520. The lever 41 contacts the circumferential isolating wall 61 when swinging. The isolating member 60 is fixed inside the second bracket 50, and one end of the lever 41 is located inside the isolating member 60, so as to isolate the lever 41 from the second bracket 50. The circumferential isolating wall 61 of the isolating member 60 is circumferentially arranged on the inner wall of the second bracket cavity 520, that is, the circumferential isolating wall 61 is a cylindrical structure. When the second bracket 50 moves in the first direction, the isolating member 60 contacts the lever 41, pushing the lever 41 to swing in the first direction.

[0098] By providing the isolation member 60 between the second bracket 50 and the lever 41, direct contact between the second bracket 50 and the lever 41 can be avoided. When both the second bracket 50 and the lever 41 are metal parts, friction between the two metal parts can be avoided, thereby reducing abnormal noise when the lever 41 is moved. In addition, by providing the circumferential isolation wall 61, the movement stroke of the lever 41 in the first direction can be reduced, so that the lever 41 can be moved more quickly.

[0099] In some embodiments, the second bracket 50 and the lever 41 are both metal parts, and the isolation member 60 is a plastic part. The setting of the isolation member 60 can eliminate abnormal noise when the lever 41 is moved.

[0100] In some embodiments, the isolation member 60 may be interference-fitted on the inner wall of the bracket tube 52 , so that the isolation member 60 is fixedly connected to the bracket tube 52 .

[0101] In some embodiments of the present invention, see Figure 1 and Figure 2 The isolating member 60 further includes an isolating end wall 62, which blocks the end of the circumferential isolating wall 61 away from the cavity opening. The isolating end wall 62 and the circumferential isolating wall 61 enclose a swinging space 610, and one end of the lever 41 is located in the swinging space 610. The circumferential isolating wall 61 is a cylindrical structure with openings at both ends. The isolating end wall 62 blocks the opening at one end of the circumferential isolating wall 61, so that a relatively closed swinging space 610 can be formed inside the isolating member 60. Figure 1 and Figure 2 The swing space 610 has a downward opening, so that the first end of the lever 41 extends from the opening into the swing space 610 .

[0102] By setting the isolation end wall 62, the isolation member 60 is a tubular structure with one end closed, which facilitates the installation of the isolation member 60 and prevents the end of the lever 41 from passing through the top of the isolation member 60 and contacting the bracket tube 52.

[0103] In some embodiments of the present invention, see Figure 1 , Figure 2 and Figure 6 The first bracket 12 has a first bracket cavity 123 that is arranged along both ends of its axial direction. The first bracket cavity 123 includes a first aperture section 1231, a second aperture section 1232, a third aperture section 1233 and a fourth aperture section 1234 that are connected in sequence and have gradually increasing inner diameters; one end of the shift rod 41 has a second radial protrusion 412 formed by the center of the shift rod 41 protruding outward along its radial direction. The shift rod 41 passes through the first aperture section 1231, and the second radial protrusion 412 is located in the second aperture section 1232. The limiting step between the first aperture section 1231 and the second aperture section 1232 is used to axially limit the second radial protrusion 412. The trigger plate 42 is located in the third aperture section 1233, and the limiting step between the second aperture section 1232 and the third aperture section 1233 is used to axially limit the trigger plate 42. The third internal thread 122 is located on the inner circumferential wall of the fourth aperture section 1234.

[0104] The first bracket cavity 123 penetrates through both ends of the first bracket 12 along the axial direction of the first bracket 12, so that the first bracket 12 is a hollow structure, and the first bracket cavity 123 is a cavity with a variable inner diameter. In this embodiment, the center of the lever 41 is the position of the center line of the lever 41 at the second aperture section 1232, so that the second radial protrusion 412 is located at the second aperture section 1232. Among them, the outer diameter of the second radial protrusion 412 is greater than the outer diameter of the lever 41 adjacent to it, so that the second radial protrusion 412 can be limited by the limiting step between the first aperture section 1231 and the second aperture section 1232. When installing the endoscope button structure 100, first pass the lever 41 through the first bracket cavity 123 from the bottom of the first bracket cavity 123, then fix the switch body 43 to the button base 20, then thread the button base 20 to the fourth aperture section 1234 of the first bracket 12, then thread the first bracket 12 to the mounting base 11, and finally thread the mounting base 11 to the button hole 203.

[0105] By designing the first bracket cavity 123 in the first bracket 12 as a cavity with a variable inner diameter, the first bracket 12 can axially limit the trigger piece 42, the lever 41, etc. of the switch assembly 40 to achieve positioning of the switch assembly 40.

[0106] In some embodiments, see Figure 5 The side of the second radial protrusion 412 facing the trigger piece 42 is an arc surface, and when the lever 41 rotates, the trigger piece 42 is pressed by the arc surface. The second radial protrusion 412 and the trigger piece 42 are in surface contact.

[0107] In some embodiments, see Figure 5The side of the second radial protrusion 412 facing the trigger plate 42 is a spherical surface, and when the lever 41 rotates, the trigger plate 42 is pressed by the spherical surface. The second radial protrusion 412 and the trigger plate 42 are in point contact.

[0108] In some embodiments, see Figure 5 The first bracket 12 has an assembly hole 124 on the side facing the inside of the housing 201, and the assembly hole 124 can be inserted into the assembly tool, so that the assembly tool can rotate the first bracket 12 to complete the rotational assembly action. In other embodiments, the mounting seat 11 and the button base 20 are both provided with assembly holes 124 on the side facing the inside of the housing 201, so that the assembly tool can be inserted into the rotation mounting seat 11 and the button base 20.

[0109] See also Figures 1 to 6 The present invention further provides an endoscope button structure 100, which is used to be installed at the button hole 203 of the shell 201 of the operating part 200 of the endoscope. The endoscope button structure includes a deformable button shell 30, a button support 10 fixedly connected to the button shell 30, a button base 20 disposed in the button support 10, a second bracket 50 disposed inside the button shell 30, and a switch assembly 40. The button support 10 is used to be installed at the button hole 203. The switch assembly 40 includes a switch body 43 fixed to the button base 20, a trigger sheet 42 in contact with the switch body 43, and a lever 41 pushed by the second bracket 50, and the end of the lever 41 away from the second bracket 50 abuts against the trigger sheet 42. , and this end of the lever 41 is located in the button support 10, the other end of the lever 41 extends into the second bracket 50 and is moved by the second bracket 50, the second bracket 50 has a second bracket cavity 520, and an isolation member 60 for separating the second bracket 50 and the lever 41 is fixed inside the second bracket cavity 520, the lever 41 extends into the interior of the isolation member 60, and one end of the lever 41 extending into the interior of the isolation member 60 has a first radial protrusion 411, the first radial protrusion 411 is located at the opening of the isolation member 60, and is used to abut against the inner wall of the opening of the isolation member 60.

[0110] By providing the isolating member 60 between the second bracket 50 and the lever 41, direct contact between the second bracket 50 and the lever 41 can be avoided. When the second bracket 50 and the lever 41 are both metal parts, friction between the two metal parts can be avoided, and abnormal noise when the lever 41 is moved can be reduced. In addition, by providing the circumferential isolating wall 61, the movement stroke of the lever 41 in the first direction can be reduced, so that the lever 41 can be moved more quickly. By providing the first radial protrusion 411, the contact position between the lever 41 and the isolating member 60 can be moved downward, and the minimum distance between the outer periphery of the lever 41 and the inner wall of the opening of the second bracket cavity 520 can be reduced, so that when the second bracket 50 has a small stroke, the lever 41 can still be pushed to swing.

[0111] See also Figure 7 The present invention further provides an endoscope, the endoscope comprising an operating unit 200, a housing 201 of the operating unit 200 having a plurality of button holes 203, the button holes 203 having mounting nuts 202, wherein at least one of the button holes 203 is installed with an endoscope button structure 100 in any of the above embodiments, and the endoscope button structure 100 is threadedly connected to the mounting nut 202 at the button hole 203. Specifically, the button support 10 of the endoscope button structure 100 is threadedly connected to the mounting nut 202. The number of the endoscope button structures 100 may be one or more, and the number of the button holes 203 on the housing 201 is the same as the number of the endoscope button structures 100 and is arranged in a one-to-one correspondence.

[0112] The endoscope provided by the present invention adopts the above-mentioned endoscope button structure 100, which includes a button support 10, a button base 20 and a switch assembly 40. The button support 10 and the button base 20 are both used to install the switch assembly 40. The button support 10 is threadedly connected to the mounting nut 202 at the button hole 203. The button base 20 is located in the button support 10 and is threadedly connected to the button support 10. In this way, the endoscope button structure 100 is connected to the button hole 203 of the housing 201 by threaded connection. The button support 10 and the button base 20 are threadedly connected to each other, and both do not need to extend into the interior of the operating part 200, and will not occupy the space inside the operating part 200. Moreover, the installation is also relatively convenient, and the installation of the endoscope button structure 100 can be completed directly by thread locking.

[0113] In some embodiments of the present invention, the housing 201 and the mounting nut 202 are integrally formed. The mounting nut 202 does not need to be assembled to the housing 201, and the first internal thread 204 is directly formed on the inner periphery of the key hole 203, which can be regarded as the mounting nut 202. For example, the housing 201 is a plastic part, and the housing 201 and the mounting nut 202 are both injection molded.

[0114] In some embodiments of the present invention, see Figure 7 The housing 201 and the mounting nut 202 are formed separately and fixed to each other. The housing 201 and the mounting nut 202 can be set to structures with different materials. For example, the mounting nut 202 is a metal structure to ensure the connection strength between it and the key support 10. For example, the housing 201 is a plastic part, and the mounting nut 202 is a metal part. After the housing 201 is injection molded, the mounting nut 202 can be fixed in the key hole 203 of the housing 201 by hot melting.

[0115] The mounting nut 202 and the housing 201 can be formed separately or integrally, as long as the button hole 203 of the housing 201 has a first internal thread 204 .

[0116] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscope button structure, used for being installed at a button hole (203) of a housing (201) of an operating unit (200) of an endoscope, wherein the button hole (203) has a mounting nut (202), characterized in that: It comprises a key support (10), a key base (20) and a switch assembly (40), The key support (10) and the key base (20) are used to install the switch assembly (40). The mounting nut (202), the key support (10) and the key base (20) are arranged in sequence from outside to inside. The mounting nut (202) is threadedly connected to the key support (10), and the key base (20) and the key support (10) are threadedly connected.

2. The endoscope button structure according to claim 1, characterized in that: The key support (10) and the key base (20) do not protrude from the inner wall of the housing (201) near the key hole (203).

3. The endoscope button structure according to claim 2, characterized in that: The inner wall of the shell (201) adjacent to the button hole (203), the mounting nut (202) facing the inner side of the shell (201), the button support (10) facing the inner side of the shell (201), and the button base (20) facing the inner side of the shell (201) are arranged flush.

4. The endoscope button structure according to claim 1, characterized in that: The key support (10) comprises a mounting seat (11) and a first bracket (12). The mounting nut (202), the mounting seat (11), the first bracket (12) and the button base (20) are arranged in sequence from the outside to the inside, and the mounting seat (11) and the first bracket (12) are threadedly connected; the mounting nut (202) has a first internal thread (204), the mounting seat (11) has a first external thread (111) matched with the first internal thread (204), the mounting seat (11) also has a second internal thread (112), the first bracket (12) has a second external thread (121) matched with the second internal thread (112), the first bracket (12) also has a third internal thread (122), and the button base (20) has a third external thread (21) matched with the third internal thread (122).

5. The endoscope button structure according to claim 4, characterized in that: The endoscope button structure (100) further includes A deformable key housing (30) and a second bracket (50) arranged inside the key housing (30), The button housing (30) is fixedly connected to the mounting seat (11). The switch assembly (40) comprises a switch body (43) fixed to the key base (20), a lever (41), and a trigger sheet (42) in contact with the switch body (43). One end of the lever (41) abuts against the trigger plate (42), and the end of the lever (41) is located inside the first bracket (12). The other end of the lever (41) extends into the second bracket (50) and is moved by the second bracket (50). The second bracket (50) has a second bracket cavity (520), and the second bracket cavity (520) has a cavity opening for the lever (41) to extend into. One end of the lever (41) extending into the second bracket cavity (520) has a first radial protrusion (411), and the first radial protrusion (411) is located at the opening of the cavity and is used to abut against the inner wall of the cavity opening.

6. The endoscope button structure according to claim 5, characterized in that: An isolation member (60) for isolating the second bracket (50) and the shifting rod (41) is fixed inside the second bracket cavity (520). The isolation member (60) comprises a circumferential isolation wall (61) circumferentially arranged on the inner wall of the second bracket cavity (520), and the shifting rod (41) contacts the circumferential isolation wall (61) when swinging.

7. The endoscope button structure according to claim 6, characterized in that: The isolation member (60) further comprises an isolation end wall (62), wherein the isolation end wall (62) blocks an end of the circumferential isolation wall (61) away from the cavity opening, and the isolation end wall (62) and the circumferential isolation wall (61) enclose a swinging space (610), and one end of the shifting rod (41) is located in the swinging space (610).

8. The endoscope button structure according to claim 5, characterized in that: The first bracket (12) has a first bracket cavity (123) penetrating along both ends of the first bracket cavity (123), and the first bracket cavity (123) includes a first aperture section (1231), a second aperture section (1232), a third aperture section (1233) and a fourth aperture section (1234) which are connected in sequence and have gradually increasing inner diameters; one end of the shifting rod (41) has a second radial protrusion (412) formed by the center of the shifting rod (41) protruding outward in the radial direction thereof, and the shifting rod (41) passes through the first aperture section (1231), and the second aperture section (1234) is connected to the first bracket cavity (1231) ... The radial protrusion (412) is located in the second aperture section (1232), the limiting step between the first aperture section (1231) and the second aperture section (1232) is used to axially limit the second radial protrusion (412), the trigger plate (42) is located in the third aperture section (1233), and the limiting step between the second aperture section (1232) and the third aperture section (1233) is used to axially limit the trigger plate (42), and the third internal thread (122) is located on the inner circumferential wall of the fourth aperture section (1234).

9. An endoscope button structure, used for being installed at a button hole (203) of a housing (201) of an operating unit (200) of the endoscope, characterized in that: The key housing (30) comprises a deformable key housing (30), a key support (10) fixedly connected to the key housing (30), a key base (20) arranged in the key support (10), a second bracket (50) arranged inside the key housing (30), and a switch assembly (40). The button support (10) is used to be installed at the button hole (203). The switch assembly (40) comprises a switch body (43) fixed to the key base (20), a trigger sheet (42) in contact with the switch body (43), and a lever (41) pushed by the second bracket (50). One end of the lever (41) away from the second bracket (50) abuts against the trigger sheet (42), and the end of the lever (41) is located inside the key support (10). The other end of the lever (41) extends into the second bracket (50) and is moved by the second bracket (50). The second bracket (50) has a second bracket cavity (520), an isolating member (60) for isolating the second bracket (50) and the shifting rod (41) is fixed inside the second bracket cavity (520), and the shifting rod (41) extends into the interior of the isolating member (60). One end of the lever (41) extending into the interior of the isolating member (60) has a first radial protrusion (411), and the first radial protrusion (411) is located at the opening of the isolating member (60) and is used to abut against the inner wall of the opening of the isolating member (60).

10. An endoscope, characterized in that: The invention comprises an operating part (200), wherein a shell (201) of the operating part (200) has a plurality of button holes (203), and each button hole (203) has a mounting nut (202), wherein at least one of the button holes (203) has an endoscope button structure (100) according to any one of claims 1 to 8 installed therein, or at least one of the button holes (203) has an endoscope button structure (100) according to claim 9 installed therein, and the endoscope button structure (100) is threadedly connected to the mounting nut (202).

11. The endoscope according to claim 10, characterized in that: The housing (201) and the mounting nut (202) are integrally formed; or, the housing (201) and the mounting nut (202) are separately formed and fixed to each other.

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