CN220529984U - Locking assembly and endoscope - Google Patents

Abstract

The utility model discloses a locking assembly and an endoscope, wherein the locking assembly is suitable for locking a hand wheel assembly and can lock bending deflection of the end part of a distal insertion tube of the endoscope, and the locking assembly comprises a shell, an adjusting piece, a damping module and a displacement locking wheel module. The locking assembly enables the displacement locking wheel module to move under the drive of the adjusting piece through rotating the acting adjusting piece and contact the extrusion damping module to enable the displacement locking wheel module to move towards the hand wheel assembly, and therefore the friction resistance of the damping module is utilized to lock the limiting hand wheel assembly. The utility model can effectively position focus in surgery, and has convenient operation and good stability when the endoscope adopting the locking component is used and works.

Description

Locking assembly and endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a locking assembly and an endoscope.

Background

Endoscopes are widely used in the field of medical diagnostics. When in clinical use, a doctor can extend the lens of the endoscope into the body by utilizing the natural holes of the human body or making a tiny wound on the body, and then can perform the airtight operation in the body in vitro through other surgical instruments and a camera shooting display system.

At present, deflection of the distal end of an insertion tube of an endoscope is basically realized by rotating a hand wheel on a handle of the endoscope to drive an angle control assembly inside the handle to rotate, so that a traction mechanism on the assembly moves or rotates to drive the distal end of the insertion tube. During surgery, a physician sometimes needs to operate a locking mechanism to secure the bent configuration of the insertion tube bend to maintain a proper surgical field and view or treat. After the existing locking mechanism is locked, the hand wheel is rotated to unlock the device by mistake, so that the focus is difficult to position during operation, and the operation is easy to be inconvenient.

Disclosure of Invention

The technical problem to be solved by the utility model is that in the related art, after the distal end of the endoscope is locked by the locking mechanism, the hand wheel is rotated to be unlocked by mistake easily, and the defect that the focus is difficult to position during operation and the operation is inconvenient exists.

The utility model provides a locking assembly, which is suitable for locking a hand wheel assembly, and comprises:

a housing;

the adjusting piece is configured to be rotationally connected with the shell;

the damping module is arranged in the shell and is suitable for being in abutting connection with the hand wheel assembly;

the displacement lock wheel module is arranged at the adjusting end of the adjusting piece;

under the action of external force, the adjusting piece rotates along a first direction to enable the displacement lock wheel module to drive the damping module to approach towards the hand wheel assembly, so that the damping module is suitable for locking a first adjusting state of the hand wheel assembly; and having a second adjustment state for rotating the displacement lock wheel module in a second direction away from the damping module to reset the damping module for unlocking the hand wheel assembly; the first direction and the second direction are opposite.

Optionally, the displacement lock wheel module comprises a first lock wheel and a second lock wheel, the first lock wheel and the second lock wheel are configured to be movably connected, the second lock wheel is installed in the casing, and a guide structure is arranged between the first lock wheel and the second lock wheel; the first lock wheel is in transmission connection with the adjusting piece and is used for driving the damping module to move along the rotation axis direction of the adjusting piece so as to enable the damping module to lock the hand wheel assembly; and/or

The damping module comprises at least one damping piece, one side of the damping piece and the displacement lock wheel module are directly or indirectly abutted in the direction along the rotation axis of the adjusting piece, and the other side of the damping piece is suitable for being directly or indirectly abutted with the hand wheel assembly.

Optionally, the guiding structure comprises a first guiding part and a second guiding part which are arranged in a sliding way, one of the first guiding part and the second guiding part is formed on the first lock wheel, and the other is formed on the second lock wheel; in any adjusting state, the first guide part and the second guide part are in conformal sliding configuration, the first guide part is arranged to be of a protruding structure, and the second guide part is arranged to be of a thread groove structure.

Optionally, a positioning part is arranged on the casing, a first lock wheel is rotatably arranged in the positioning part, and a second lock wheel is sleeved and mounted on the first lock wheel; and/or

The adjusting piece is provided with an adjusting part, and the adjusting part is arranged at one end of the adjusting piece far away from the displacement lock wheel module in an extending mode.

Optionally, an elastic limit structure is arranged between the shell and the adjusting piece; the elastic limiting structure is used for locking the displacement lock wheel module to move away from the hand wheel assembly along the rotation axis direction of the adjusting piece; and/or

The shell comprises a first shell body and a second shell body which are detachably connected.

Optionally, the elastic limiting structure includes a first limiting portion and a second limiting portion, where the first limiting portion and the second limiting portion are configured as a clamping structure that is arranged in a conformal manner, the first limiting portion is formed on a side of the casing facing the adjusting member, and the second limiting portion is formed on a side of the adjusting member facing the casing; and in the first adjusting state, the first limiting part and the second limiting part are close to each other so as to limit and lock the displacement lock wheel module from moving along the rotating axis direction of the adjusting piece.

Optionally, a guiding wall surface is arranged on the adjusting piece or the casing, and the guiding wall surface is suitable for guiding the elastic limiting structure to enter or exit from the clamping position; and/or

Two clamping grooves are symmetrically formed, and the clamping grooves are arc-shaped grooves.

An endoscope comprises a hand wheel assembly and the locking assembly.

Optionally, the hand wheel assembly includes a first hand wheel, a second hand wheel, a first rotating wheel and a second rotating wheel which are coaxially arranged, the first hand wheel is fixedly connected with the first rotating wheel, and the second hand wheel is fixedly connected with the second rotating wheel; any rotating wheel and the shell are configured to be arranged in a relative rotation way, and the first rotating wheel and the second rotating wheel are arranged at intervals; any hand wheel is arranged on the outer side of the shell, and the first hand wheel and the second hand wheel are adjacently arranged at intervals;

the damping module comprises a first damping piece and a second damping piece;

the first damping piece is arranged between the displacement lock wheel module and the second rotating wheel;

the second damping piece is arranged between the first rotating wheel and the shell;

any damping member is provided in a ring-like elastic structure.

Optionally, the damping module further comprises a first spacer and a second spacer;

the first isolation piece is arranged between the displacement lock wheel module and the first damping piece in an abutting mode, a mounting cavity is formed by enclosing the displacement lock wheel module and the second rotating wheel, and the first isolation piece and the first damping piece are arranged in the mounting cavity;

the second separator is arranged between the first rotating wheel and the second rotating wheel in an abutting mode;

any spacer is provided in a ring-like structure.

The technical scheme provided by the utility model has the following advantages:

1. the locking assembly provided by the utility model is suitable for locking a hand wheel assembly and comprises a shell, an adjusting piece, a damping module and a displacement locking wheel module; the adjusting piece is rotatably connected with the shell; the damping module is arranged in the shell and is suitable for being in abutting connection with the hand wheel assembly; the displacement lock wheel module is arranged at the adjusting end of the adjusting piece; under the action of external force, the adjusting piece rotates along a first direction to enable the displacement lock wheel module to drive the damping module to approach the hand wheel assembly, so that the damping module is suitable for locking a first adjusting state of the hand wheel assembly; and having a second adjustment state for rotating the displacement lock wheel module in a second direction away from the damping module to reset the damping module for unlocking the hand wheel assembly; the first direction and the second direction are opposite.

The locking assembly of this structure makes displacement lock wheel module remove under the regulating part drives through rotating the effect regulating part, and contact extrusion damping module, makes it towards the hand wheel subassembly motion to utilize damping module's frictional resistance locking limit hand wheel subassembly, thereby can reliably keep the motion gesture of endoscope distal end inserted tube, effectively fix a position the focus when the surgery, its simple operation is favorable to strengthening the stability of endoscope during operation.

2. The utility model provides a locking assembly, a displacement lock wheel module comprises a first lock wheel and a second lock wheel, wherein the second lock wheel is arranged in a machine shell, the first lock wheel and the second lock wheel are movably connected, and a guide structure is arranged between the first lock wheel and the second lock wheel; the first lock wheel is connected with the adjusting piece in a transmission way, and the second lock wheel is used for driving the damping module to move along the rotation axis direction of the adjusting piece so as to enable the damping module to lock the hand wheel assembly.

The locking assembly of this structure, when external force drive regulating part and second lock wheel take place to rotate along first direction, through the rotation of sliding fit effect first lock wheel between the guide structure to when first lock wheel rotary motion, first lock wheel still has the displacement of following the axis of rotation direction motion of regulating part, with drive damping module locking hand wheel subassembly, realize keeping the purpose of endoscope distal end insert tube motion gesture, can make damping module slide locking hand wheel subassembly through rotating the regulating part, its regulation simple operation.

3. According to the locking assembly provided by the utility model, an elastic limiting structure is arranged between the shell and the adjusting piece; the elastic limiting structure is used for locking the displacement lock wheel module to move away from the hand wheel assembly along the rotation axis direction of the adjusting piece.

The locking assembly of this structure is fixed locking regulation spare and casing relatively through elasticity limit structure to the displacement locking wheel module is kept away from along regulation spare rotation axis direction the removal of hand wheel subassembly avoids the regulation spare to reset under the external force effect that conventional external force and hand wheel subassembly department produced, and it is favorable to strengthening endoscope operating condition's stable keeping, improves medical diagnosis's quality.

4. The locking component provided by the utility model is characterized in that the adjusting piece or the shell is provided with the guide wall surface, and the guide wall surface is suitable for guiding the elastic limiting structure to enter or exit the clamping position.

The locking component of this structure is led to the rotatory stroke that the joint protruding entering or withdraw from the joint recess through the guide wall, is favorable to promoting rotation process smoothness between regulating part and the casing, and the locking operation of being convenient for locking component to the hand wheel subassembly.

5. The utility model provides an endoscope which comprises a hand wheel assembly and a locking assembly.

The endoscope of this structure makes displacement lock wheel module move under the driving of regulating part through rotating action regulating part, and contacts extrusion damping module, makes it towards the hand wheel subassembly motion to utilize damping module's frictional resistance locking limit hand wheel subassembly, can avoid hand wheel subassembly self to take place to rotate and take place the mistake unblock easily, and then can reliably keep the motion gesture of endoscope distal end inserted tube, and the endoscope can effectively fix a position the focus when the surgical operation, and its simple operation possesses good stability during the use.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a locking assembly and hand wheel assembly provided in an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a locking assembly and a hand wheel assembly provided in an embodiment of the present utility model;

FIG. 3 is an exploded view of a locking assembly and a hand wheel assembly provided in an embodiment of the present utility model;

FIG. 4 is a partial schematic view of a locking assembly and hand wheel assembly provided in an embodiment of the present utility model;

FIG. 5 is a schematic view of a first lock wheel of the locking assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a second lock wheel of the locking assembly according to an embodiment of the present utility model;

FIG. 7 is a partial schematic view of a locking assembly provided in an embodiment of the present utility model;

FIG. 8 is a partial isometric view of a locking assembly provided in an embodiment of the utility model;

FIG. 9 is a schematic perspective view of an adjuster in a locking assembly provided in an embodiment of the present utility model;

FIG. 10 is a schematic view of the structure of an adjuster in a locking assembly provided in an embodiment of the present utility model;

reference numerals illustrate:

1-a shell; 11-a first connection housing; 12-a second connection housing; 13-clamping the bulge; 14-positioning part; 15-a containing groove;

2-an adjusting member; 21-an adjusting part; 22-clamping grooves; 23-guiding wall surface; 24-bending parts;

a 3-damping module; 31-a first damping member; 32-a second damping member; 33-a first spacer; 34-a second spacer;

4-displacement lock wheel module; 41-a first lock wheel; 411-connecting protrusions; 42-a second lock wheel; 421-connecting slot;

5-a hand wheel assembly; 51-a first hand wheel; 52-a second hand wheel; 53-a first wheel; 54-second wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

The present embodiment provides a locking assembly adapted to lock a hand wheel assembly 5 of an endoscope for locking bending deflection of the distal insertion tube end of the endoscope.

Referring to fig. 1 to 10, the locking assembly includes a cabinet 1, an adjusting member 2, a damping module 3, and a displacement lock wheel module 4. The casing 1 comprises a first casing body and a second casing body which are detachably connected, an installation cavity is formed by encircling the first casing body and the second casing body, and the damping module 3 and the displacement lock wheel module 4 are arranged in the installation cavity.

The adjusting piece 2 is configured to be in rotary connection with the shell 1, the damping module 3 is suitable for being in abutting connection with the hand wheel assembly 5, and the displacement lock wheel module 4 is arranged at the adjusting end of the adjusting piece 2; under the action of external force, the adjusting piece 2 rotates along a first direction to enable the displacement lock wheel module 4 to drive the damping module 3 to approach the hand wheel assembly 5, so that the damping module 3 is suitable for locking a first adjusting state of the hand wheel assembly 5; and having a second adjustment state of rotating the displacement lock wheel module 4 in a second direction away from the damping module 3 to reset the damping module 3 for unlocking the hand wheel assembly 5; the first direction and the second direction are opposite. The first direction is set to rotate the adjustment member 2 to cause the damping assembly to lock the rotational direction of the hand wheel assembly 5, e.g., in fig. 5, the first direction is in a counter-clockwise direction in fig. 5.

The locking assembly provided by the embodiment makes the displacement lock wheel module 4 move under the drive of the adjusting piece 2 and contact the extrusion damping module 3 through rotating the adjusting piece 2, so that the displacement lock wheel module moves towards the hand wheel assembly 5, and the friction resistance of the damping module 3 is utilized to lock the limit hand wheel assembly 5, so that the movement posture of the endoscope distal insertion tube can be reliably maintained, the focus is effectively positioned during the surgical operation, the operation is convenient, and the stability of the endoscope during the use and the working is facilitated to be enhanced.

Referring to fig. 2 to 4, the displacement lock wheel module 4 includes a first lock wheel 41 and a second lock wheel 42, the second lock wheel 42 is installed in the casing 1, the first lock wheel 41 and the second lock wheel 42 are configured to be movably connected, and a guide structure is arranged between the first lock wheel 41 and the second lock wheel 42; the first lock wheel 41 is in transmission connection with the adjusting piece 2, and the first lock wheel 41 is used for driving the damping module 3 to move along the rotation axis direction of the adjusting piece 2 so that the damping module 3 locks the hand wheel assembly 5. In this embodiment, the second lock wheel 42 is relatively fixedly mounted in the housing 1, and an end of the first lock wheel 41 remote from the adjusting member 2 is used for abutting against the damping module 3. When the external force drives the adjusting piece 2 and the second lock wheel 42 to rotate along the first direction, the first lock wheel 41 rotates through sliding fit action between the guide structures, and the first lock wheel 41 also has displacement moving along the rotation axis direction of the adjusting piece 2 when the first lock wheel 41 rotates, so as to drive the damping module 3 to lock the hand wheel assembly 5, the purpose of keeping the movement posture of the endoscope distal insertion tube is achieved, the damping module 3 can slide to lock the hand wheel assembly 5 through rotating the adjusting piece 2, and the adjustment operation is convenient.

Referring to fig. 5 and 6, the guide structure includes a first guide part and a second guide part slidably disposed with each other, the first guide part and the second guide part constituting a sliding pair, in which the first guide part is formed on the first lock wheel 41, the first guide part is provided as a connection protrusion 411, the second guide part is formed on the second lock wheel 42, the second guide part is provided as a connection groove 421, and the connection groove 421 is provided as a screw groove; the connection protrusion 411 is conformably slidably disposed within the connection slot 421. The guide direction of the coupling groove 421 and the coupling protrusion 411 is parallel to the rotation axis direction of the regulating member 2. Of course, in other embodiments, the first guide portion is formed on the second lock wheel 42, the first guide portion is provided as the connection protrusion 411, the second guide portion is formed on the first lock wheel 41, the second guide portion is provided as the connection groove 421, and the connection groove 421 is provided as the screw groove.

Referring to fig. 3, the damping module 3 comprises one or more damping members, one side of which is adapted to be disposed in direct or indirect abutment with the hand wheel assembly 5, in the direction of the rotational axis of the adjustment member 2, and in the displacement lock wheel module 4. In some embodiments, the damping member is configured as a damping rubber ring.

In this embodiment, referring to fig. 2 and 3, the hand wheel assembly 5 includes a first hand wheel 51, a second hand wheel 52, a first rotating wheel 53 and a second rotating wheel 54 coaxially disposed, the first hand wheel 51 and the first rotating wheel 53 are fixedly connected, and the second hand wheel 52 and the second rotating wheel 54 are fixedly connected; the damping module 3 comprises a first damping member 31 and a second damping member 32, any of which is provided in a ring-shaped elastic structure; the first damping member 31 is disposed between the first lock gear 41 and the second rotating gear 54; the second damper 32 is disposed between the first rotary wheel 53 and the casing 1. When the locking assembly is needed to lock the hand wheel assembly 5, the adjusting piece 2 rotates along the first direction through the action of external force, the adjusting end of the adjusting piece 2 drives the first lock wheel 41 to rotate, the first lock wheel 41 moves towards the first damping piece 31 along the rotation axis direction of the adjusting piece 2 under the guide of the second lock wheel 42, and the first damping piece 31 is made to approach to the second rotating wheel 54, so that the second rotating wheel 54 is locked through the friction force between the first damping piece 31 and the second rotating wheel 54. When the first damping member 31 approaches to press the second rotating wheel 54, the second rotating wheel 54 moves towards the first rotating wheel 53 and is pressed in an abutting manner, so that the first rotating wheel 53 and the casing 1 press the second damping member 32 between the first rotating wheel 53 and the casing 1, and the first rotating wheel 53 is locked by friction between the second damping member 32 and the first rotating wheel 53; thereby completing the locking operation of the hand wheel assembly 5. The locking assembly provides a force against the locking hand wheel assembly 5 by elastic deformation of the first and second damping members 31, 32.

When the hand wheel assembly 5 can be adjusted by unlocking the hand wheel assembly 5 through the locking assembly; the adjusting piece 2 rotates along the second direction through the action of external force, the adjusting end of the adjusting piece 2 drives the first lock wheel 41 to rotate and reset, the first lock wheel 41 moves away from the first damping piece 31 along the rotation axis direction of the adjusting piece 2 under the guide of the second lock wheel 42, and the first damping piece 31 gradually moves away from the second rotating wheel 54 through self elastic reset so as to unlock the second rotating wheel 54; when the first damping piece 31 unlocks the second rotating wheel 54, the first rotating wheel 53 releases the extrusion of the second damping piece 32, so that the second damping piece 32 elastically resets itself and the first rotating wheel 53 and the second rotating wheel 54 are acted to gradually reset; thereby completing the unlocking operation of the hand wheel assembly 5.

Referring to fig. 3, the damping module 3 further includes a first spacer 33; the first spacer 33 is installed between the first lock wheel 41 and the first damping member 31, the first spacer 33 is arranged in a ring-sheet structure, one side of the first spacer 33 is abutted against the first lock wheel 41, and the other side of the first spacer 33 is abutted against the first damping member 31; the contact area between the first lock wheel 41 and the first damping piece 31 is increased through the first isolating piece 33, so that the second rotating wheel 54 and the first damping piece 31 are strengthened to be stably abutted, the reset rotation of the second rotating wheel 54 is prevented, and the locking capacity of the locking assembly to the hand wheel assembly 5 is improved.

Referring to fig. 3, the damping module 3 further includes a second spacer 34, the second spacer 34 being installed between the first and second pulleys 53 and 54, the second spacer 34 being provided in a ring-sheet structure; one side of the second separator 34 is abutted against the first rotating wheel 53, and the other side of the second separator 34 is abutted against the second rotating wheel 54; the contact area between the first rotating wheel 53 and the second rotating wheel 54 is increased by the first separator 33, so that the first rotating wheel 53 and the second rotating wheel 54 are fully contacted; thus, when the locking component locks the hand wheel component 5, the first rotating wheel 53 and the second rotating wheel 54 are relatively fixed and locked, and the hand wheel component 5 is stabilized.

Referring to fig. 2, a positioning portion 14 is provided on the casing 1, the positioning portion 14 is provided in an annular structure, a first lock wheel 41 is rotatably provided in the positioning portion 14, and a second lock wheel 42 is sleeved on the first lock wheel 41. The first lock wheel 41 is rotatably connected by the positioning part 14, so that the first lock wheel 41 is aligned to move towards the rotation axis direction of the adjusting piece 2, and the movement precision of the first lock wheel 41 is enhanced.

Referring to fig. 1 and 9, the adjusting member 2 is provided with an adjusting portion 21, and the adjusting portion 21 is disposed at an end of the adjusting member 2 away from the displacement lock wheel module 4 in an extending manner. The adjusting part 21 extends out of the space where the hand wheel assembly 5 is located, so that when the adjusting part 21 adjusts the displacement lock wheel module 4 to generate displacement, interference between the adjusting piece 2 and the hand wheel assembly 5 can be avoided.

Referring to fig. 2 and 3, an elastic limit structure is arranged between the casing 1 and the adjusting piece 2; the elastic limiting structure is used for locking the displacement lock wheel module 4 to move away from the hand wheel assembly 5 along the rotation axis direction of the adjusting piece 2 so as to avoid the hand wheel assembly 5 from rotating and being easy to unlock by mistake. The elastic limiting structure comprises a first limiting part and a second limiting part which are detachably connected, the first limiting part is formed on one side of the machine shell 1 facing the regulating piece 2, and the second limiting part is formed on one side of the regulating piece 2 facing the machine shell 1; in the first adjustment state, the first limiting portion and the second limiting portion are close to each other to limit movement of the lock wheel module 4 in the direction of the rotational axis of the adjustment member 2.

Referring to fig. 7 to 10, the first limiting portion is provided as the catching protrusion 13, and the second limiting portion is provided as the catching groove 22. When the clamping protrusion 13 is connected into the clamping groove 22, the clamping feedback is clear, and the operation hand feeling is good. The adjusting piece 2 is firmly clamped with the shell 1 in the working state, can realize free operation of the hand wheel assembly 5 and free control of the distal end of the endoscope in the locking state, is beneficial to reducing unnecessary operation and risk in the using process and is beneficial to ensuring smooth medical diagnosis.

In some embodiments, the clamping protrusion 13 may be designed in a hollow manner, and an avoidance deformation space is provided between the clamping protrusion 13 and the casing 1, so that the clamping protrusion 13 may elastically deform when the clamping protrusion 13 is connected with the clamping groove 22.

The locking subassembly that this embodiment provided is fixed locking relative to regulating part 2 and casing 1 through elasticity limit structure to locking displacement lock wheel module 4 is kept away from along regulating part 2 rotation axis direction the removal of hand wheel subassembly 5 avoids regulating part 2 to reset under the external force effect that conventional external force and hand wheel subassembly 5 department produced, avoids hand wheel subassembly 5 self to take place to rotate and easily takes place the mistake unblock, and it is favorable to strengthening endoscope operating condition's stable maintenance, improves medical diagnosis's quality.

In the present embodiment, referring to fig. 7 to 10, two clamping grooves 22 are symmetrically provided, and the clamping grooves 22 are provided as arc grooves.

Referring to fig. 10, the adjusting member 2 is provided with a guiding wall surface 23, and the guiding wall surface 23 is suitable for guiding the elastic limiting structure to enter or exit the clamping position; in the present embodiment, the guide wall surface 23 and the engaging groove 22 are provided adjacently and transitionally, and the guide wall surface 23 is provided obliquely at a position where the engaging projection 13 enters or exits the engaging groove 22. The rotational travel of the click projection 13 into or out of the click groove 22 is guided by the guide wall surface 23.

The guide wall surface 23 is an arc-shaped wall surface, and the circle center of the arc-shaped wall surface and the rotation axis of the adjusting piece 2 are overlapped, so that the guide wall surface 23 is adapted to the rotation stroke between the casing 1 and the adjusting piece 2.

In some embodiments, the depth of the guiding wall surface 23 is reduced along the first direction, so that when the adjusting member 2 rotates along the first direction, the guiding wall surface 23 reduces the contact resistance when the clamping protrusion 13 moves towards the clamping groove 22, and the smooth rotation process between the adjusting member 2 and the casing 1 is promoted; and when the adjusting piece 2 rotates along the second direction, the guide wall surface 23 is utilized to increase the contact resistance when the clamping protrusion 13 moves away from the clamping groove 22, so that the locking assembly can conveniently lock the hand wheel assembly 5.

As a modification, the first limiting portion is provided as a clamping groove 22, the second limiting portion is provided as a clamping protrusion 13, the casing 1 is provided with a guiding wall surface, and similarly, the clamping protrusion 13 can be guided to enter or exit the clamping groove 22 through the guiding wall surface.

Referring to fig. 8 and 9, a bending portion 24 is provided at an intermediate section of the adjusting member 2, a housing groove 15 is provided on the housing 1, and the bending portion 24 is slidably disposed in the housing groove 15 during a rotation stroke of the adjusting member 2 relative to the housing 1.

Example 2

This embodiment provides an endoscope, see fig. 3, comprising a hand wheel assembly 5 and a locking assembly by which the hand wheel assembly 5 is locked for locking bending deflection of the end of a distal insertion tube (not shown) of the endoscope.

The endoscope provided by the embodiment solves the problem that the first lock wheel 41 rotates along with the rotation of the rotating wheel assembly to return the locking deflector rod when the rotating wheel assembly rotates after locking. Specifically, through rotating action regulating part 2, make displacement lock round module 4 move under regulating part 2 drives, and contact extrusion damping module 3 makes its towards hand wheel subassembly 5 motion to utilize damping module 3's frictional resistance locking limit hand wheel subassembly 5, and then can reliably keep the motion gesture of endoscope distal end inserted tube, endoscope can effectively fix a position the focus when the surgical operation, its simple operation possesses good stability during the use.

Referring to fig. 2 and 3, the hand wheel assembly 5 includes a first hand wheel 51, a second hand wheel 52, a first rotating wheel 53 and a second rotating wheel 54 coaxially arranged, the first hand wheel 51 and the first rotating wheel 53 are fixedly connected, and the second hand wheel 52 and the second rotating wheel 54 are fixedly connected; any rotating wheel and the shell 1 are configured to be arranged in a relative rotation way, and the first rotating wheel 53 and the second rotating wheel 54 are arranged at intervals; any hand wheel is arranged outside the shell 1, and the first hand wheel 51 and the second hand wheel 52 are adjacently arranged at intervals; the damping module 3 includes a first damping member 31 and a second damping member 32; the first damping member 31 is disposed between the displacement lock wheel module 4 and the second rotating wheel 54; the second damping member 32 is provided between the first rotary wheel 53 and the casing 1; any damping member is provided in a ring-like elastic structure.

Referring to fig. 3, the damping module 3 further includes a first spacer 33 and a second spacer 34; the first isolation piece 33 is arranged between the displacement lock wheel module 4 and the first damping piece 31 in an abutting mode, a mounting cavity is formed by enclosing the displacement lock wheel module 4 and the second rotating wheel 54, and the first isolation piece 33 and the first damping piece 31 are arranged in the mounting cavity; the second spacer 34 is disposed in abutment between the first wheel 53 and the second wheel 54; any spacer is provided in a ring-like structure. The spacer may be an elastic resin plate. The spacer is used to provide a friction contact force bearing surface for preventing rotation, which can function to increase the contact area.

The utility model provides an endoscope, which comprises the following using method:

the hand wheel assembly 5 is required to be locked, the adjusting piece 2 is acted by rotation along the first direction, the second lock wheel 42 in the displacement lock wheel module 4 is driven to rotate by the adjusting piece 2, the first lock wheel 41 is guided by sliding of the guiding structure, sliding close to the hand wheel assembly 5 along the axis direction of the adjusting piece 2 is generated under the sliding action of the second lock wheel 42, the first isolation piece 33 in the damping module 3 is contacted, the first isolation piece 33 is enabled to slide, the first isolation piece 33 sequentially extrudes the first damping piece 31, the second rotating wheel 54, the second isolation piece 34, the first rotating wheel 53, the second damping piece 32 and the casing 1, and after the first rotating wheel 53 and the second rotating wheel 54 are locked, the first hand wheel 51 and the second hand wheel 52 are also locked; at the same time, the engaging projection 13 and the engaging recess 22 are engaged with each other.

When the hand wheel assembly 5 needs to be unlocked, the adjusting piece 2 is rotated along the second direction, the second lock wheel 42 in the displacement lock wheel module 4 is driven to rotate by the adjusting piece 2, the first lock wheel 41 is guided in a sliding manner through the guide structure, the first lock wheel 41 slides away from the hand wheel assembly 5 along the axial direction of the adjusting piece 2 under the sliding effect of the second lock wheel 42, and the damping module 3 is reset under the action of self elastic capacity to gradually release the locking of the hand wheel assembly 5.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. A locking assembly adapted to lock a hand wheel assembly (5), comprising:

a housing (1);

an adjusting member (2) configured to be rotatably connected with the housing (1);

the damping module (3) is arranged in the shell (1), and the damping module (3) is suitable for being in abutting connection with the hand wheel assembly (5);

the displacement lock wheel module (4) is arranged at the adjusting end of the adjusting piece (2);

under the action of external force, the adjusting piece (2) rotates along a first direction to enable the displacement lock wheel module (4) to drive the damping module (3) to approach towards the hand wheel assembly (5), so that the damping module (3) is suitable for locking a first adjusting state of the hand wheel assembly (5); and having a second adjustment state for rotating the displacement lock wheel module (4) in a second direction away from the damping module (3) to return the damping module (3) to an unlocking hand wheel assembly (5); the first direction and the second direction are opposite.

2. The locking assembly according to claim 1, wherein the displacement lock wheel module (4) comprises a first lock wheel (41) and a second lock wheel (42), the second lock wheel (42) is mounted in the casing (1), the first lock wheel (41) and the second lock wheel (42) are configured to be movably connected, and a guiding structure is arranged between the first lock wheel (41) and the second lock wheel (42); the first lock wheel (41) is in transmission connection with the adjusting piece (2), and the first lock wheel (41) is used for driving the damping module (3) to move along the rotation axis direction of the adjusting piece (2) so as to enable the damping module (3) to lock the hand wheel assembly (5); and/or

The damping module (3) comprises at least one damping piece, one side of the damping piece and the displacement lock wheel module (4) are directly or indirectly abutted in the direction along the rotation axis of the adjusting piece (2), and the other side of the damping piece is suitable for being directly or indirectly abutted with the hand wheel assembly (5).

3. A locking assembly according to claim 2, wherein the guide structure comprises a first guide portion and a second guide portion, one of which is formed on the first lock wheel (41) and the other of which is formed on the second lock wheel (42); in any adjusting state, the first guide part and the second guide part are in conformal sliding configuration, the first guide part is arranged to be of a protruding structure, and the second guide part is arranged to be of a thread groove structure.

4. The locking assembly according to claim 2, wherein the casing (1) is provided with a positioning part (14), a first locking wheel (41) is rotatably arranged in the positioning part (14), and the second locking wheel (42) is sleeved and mounted on the first locking wheel (41); and/or

The adjusting piece (2) is provided with an adjusting part (21), and the adjusting part (21) is arranged at one end of the adjusting piece (2) far away from the displacement lock wheel module (4) in an extending mode.

5. The locking assembly according to any one of claims 1-4, characterized in that an elastic limit structure is provided between the housing (1) and the adjusting member (2); the elastic limiting structure is used for locking the displacement lock wheel module (4) to move away from the hand wheel assembly (5) along the rotation axis direction of the adjusting piece (2); and/or

The shell (1) comprises a first shell body and a second shell body which are detachably connected.

6. The locking assembly according to claim 5, wherein the elastic limit structure comprises a first limit portion and a second limit portion, the first limit portion and the second limit portion are configured as a clamping structure which is arranged in a conformal manner, the first limit portion is formed on one side of the housing (1) facing the adjusting member (2), and the second limit portion is formed on one side of the adjusting member (2) facing the housing (1); in the first adjusting state, the first limiting part and the second limiting part are close to each other so as to limit and lock the displacement lock wheel module (4) from moving along the rotating axis direction of the adjusting piece (2).

7. Locking assembly according to claim 6, characterized in that the adjusting element (2) or the housing (1) is provided with a guiding wall (23), which guiding wall (23) is adapted to guide the elastic limit structure into or out of the snap-in position.

8. An endoscope comprising a hand wheel assembly (5) and a locking assembly according to any one of claims 1-7.

9. The endoscope according to claim 8, characterized in that the hand wheel assembly (5) comprises a first hand wheel (51), a second hand wheel (52), a first wheel (53) and a second wheel (54) arranged coaxially, the first hand wheel (51) and the first wheel (53) being fixedly connected, the second hand wheel (52) and the second wheel (54) being fixedly connected; any rotating wheel and the shell (1) are configured to be arranged in a relative rotation mode, and the first rotating wheel (53) and the second rotating wheel (54) are arranged at intervals; any hand wheel is arranged outside the shell (1), and the first hand wheel (51) and the second hand wheel (52) are adjacently arranged at intervals;

the damping module (3) comprises a first damping piece (31) and a second damping piece (32);

the first damping piece (31) is arranged between the displacement lock wheel module (4) and the second rotating wheel (54);

the second damping piece (32) is arranged between the first rotating wheel (53) and the machine shell (1);

any damping member is provided in a ring-like elastic structure.

10. The endoscope according to claim 9, characterized in that the damping module (3) further comprises a first spacer (33) and a second spacer (34);

the first isolation piece (33) is arranged between the displacement lock wheel module (4) and the first damping piece (31) in an abutting mode, a mounting cavity is formed by enclosing the displacement lock wheel module (4) and the second rotating wheel (54), and the first isolation piece (33) and the first damping piece (31) are arranged in the mounting cavity;

the second isolation piece (34) is arranged between the first rotating wheel (53) and the second rotating wheel (54) in an abutting mode;

any spacer is provided in a ring-like structure.