CN219720628U - Steering control assembly and endoscope - Google Patents

Abstract

The utility model discloses a steering control assembly and an endoscope, comprising: the first control wheel is positioned on the control handle and used for controlling the first steering operation of the head end module; the first limiting piece is adjacent to the first control wheel, enters a first braking state from a first releasing state when being pressed and is used for limiting the first steering operation, and when the first control wheel is further stressed to rotate, the first limiting piece returns to the first releasing state; the second control wheel is arranged on the first control wheel and used for controlling the second steering operation of the head end module; and the second limiting piece is adjacent to the second control wheel, enters a second braking state from a second release state when being pressed and is used for limiting the second steering operation, and when the second control wheel is further stressed to rotate, the second limiting piece returns to the second release state. Through the restriction piece in release state and braking state switching, can reach the technical effect of convenient adjustment head end module angle, promote convenient operation to have simple structure, low cost's advantage.

Description

Steering control assembly and endoscope

Technical Field

The present utility model relates to a steering control assembly, and more particularly to a steering control assembly suitable for use in an endoscope.

Background

There are many different kinds of viewing devices on the market, such as medical endoscopes, industrial endoscopes, police endoscopes, etc. The endoscope generally comprises a lens, a light source and the like arranged at the front end, and then is connected with a bending section, and the bending deformation of the bending section is utilized to enable the head end module (such as the lens and the light source) to generate angle change, so that a narrow space or the inside of a pipeline can be conveniently seen from different visual angles.

In the prior art, because the endoscope needs to be communicated with electric power and signals, and is additionally provided with a steering control component for controlling the angle of the head end module and functional pipelines and other elements for communicating gas or liquid and the like, the structure is quite complex, the manufacturing and assembling processes are complicated, the labor intensity of personnel is greatly increased, and meanwhile, the cost is high.

Another problem is that, in the known operation handle of the endoscope, a mechanism for locking the angle of the head end module is provided, so that the angle of the lens or the light source can be fixed, but generally, such a locking mechanism still has the problems of large volume, inconvenient operation, high operation complexity and the like, and is very inconvenient for one-hand or precise operation of the endoscope.

Therefore, in order to solve the above-mentioned problems, it is necessary to design a new steering control assembly and an endoscope to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model provides a steering control assembly and an endoscope, which are used for limiting steering operation by utilizing a limiting piece to enter a braking state from a releasing state when being pressed, and the limiting piece is separated from the braking state to return to the releasing state when a control wheel is further stressed to rotate.

One aspect of the present utility model proposes a steering control assembly for an endoscope, comprising: the first control wheel is arranged on one side of the control handle of the endoscope and used for controlling the first steering operation of the head end module of the endoscope on a first direction plane; the first limiting piece is arranged at a position adjacent to the first control wheel, enters a first braking state from a first releasing state when being pressed and is used for limiting the first steering operation, and when the first control wheel is further forced to rotate, the first limiting piece is separated from the first braking state and returns to the first releasing state; the second control wheel is overlapped on the first control wheel and used for controlling the second steering operation of the head end module on a second direction plane; and the second limiting piece is arranged at a position adjacent to the second control wheel, enters a second braking state from a second releasing state when being pressed and is used for limiting the second steering operation, and when the second control wheel is further stressed to rotate, the second limiting piece is separated from the second braking state and returns to the second releasing state.

Another aspect of the present utility model provides an endoscope comprising the foregoing rotation control assembly.

The steering control assembly and the endoscope have the following beneficial effects:

according to the steering control assembly and the endoscope, the rotation of the control wheel is limited by the mode that the limiting piece is pressed to enter the braking state, so that the angle of the head end module can be well fixed, and when the angle of the head end module needs to be adjusted next, the control wheel is further forced to rotate, the limiting piece is separated from the braking state and returns to the releasing state, so that the technical effect of conveniently adjusting the angle of the head end module can be achieved by the mode that the limiting piece is switched between the releasing state and the braking state, the convenience of operating the endoscope is improved, and the endoscope has the advantages of being simple in structure and low in cost.

Drawings

Fig. 1 is a perspective view of an endoscope according to an embodiment of the present utility model.

Fig. 2 is an exploded view of the control handle and steering control assembly.

Fig. 3 is an exploded view of the control handle and another view of the steering control assembly.

Fig. 4 is a cross-sectional view of the endoscope of fig. 1 corresponding to the position of the steering control assembly.

Fig. 5 is a schematic view of the first restriction member in the first braking state.

Fig. 6 is a schematic view of the first restriction member in a first released state.

Fig. 7 is a schematic view of the second restriction member in the second braking state.

Fig. 8 is a schematic view of the second restriction in the second released state.

Description of the reference numerals

Endoscope 1 control handle 10

Upper case 11 and lower case 12

First control wheel 21 of steering control assembly 20

First friction joint 21a first limiter 22

First brake end 221 pivot point 222

First compression end 223 first elastic member 23

First rubber ring 24 and second control wheel 25

Second stopper 26 second brake end … 261

The second pressed end 262 and the second elastic member 27

Second friction interface 28a of inner shaft member 28

Annular recess 281 second glue ring 29

First rotating disk 31 second rotating disk 32

Axial X-axis Y

Axial Z

Detailed Description

The technical means adopted by the utility model to achieve the preset aim are further described below by combining the drawings and the specific embodiments of the utility model. It will be appreciated by those skilled in the art that directional terms such as up, down, left, right, front or back, etc., provided by the specific embodiments of the utility model are used merely for convenience of description and are not intended to limit the utility model with reference to the orientation of the accompanying drawings. In addition, many alterations and modifications may be made by those having ordinary skill in the art without departing from the spirit and scope of the utility model, and such derived implementation examples fall within the scope of the utility model.

The embodiment of the utility model provides a steering control assembly and an endoscope, which limit the rotation of a control wheel by using a mode that a limiting piece is pressed into a braking state, so that the angle of a head end module can be well fixed. When the angle of the head end module needs to be adjusted next, the control wheel is operated to further rotate under the force of the control wheel, and the limiting piece can be returned to the release state after being separated from the braking state. By means of the mode that the limiting piece is switched between the release state and the braking state, the effects of single-hand operation and adjustment of the angle of the head end module can be achieved, the convenience of operating the endoscope is improved, and meanwhile the endoscope has the advantages of being simple in structure and low in cost.

Referring first to fig. 1 to 4 simultaneously, fig. 1 is a perspective view of an endoscope according to an embodiment of the present utility model, fig. 2 is an exploded view of a control handle and a steering control assembly, fig. 3 is an exploded view of the control handle and the steering control assembly from another perspective, and fig. 4 is a cross-sectional view of the endoscope of fig. 1 corresponding to a position of the steering control assembly. The endoscope 1 of the present embodiment includes a control handle 10, a steering control assembly 20, a tube 50, and a head end module 70. The steering control assembly 20 is disposed on the control handle 10, and the tube body 50 has one end connected to the control handle 10 and the other end connected to the head end module 70. Steering control assembly 20 controls the steering angle of head end module 70 using one or more wires (e.g., steel wires) that pass through tube 50. The technical solution and content adopted by the pipe body 50 and the head end module 70 in the embodiment of the present utility model are not limited, and all that is required is to control the steering angle of the head end module 70 by the steering control assembly 20 in the embodiment of the present utility model is the scope of the present utility model.

The steering control assembly 20 for the endoscope 1 in the present embodiment includes: a first control wheel 21, a first limiter 22, a second control wheel 25, and a second limiter 26. The first control wheel 21 is provided on one side of the control handle 10 of the endoscope 1 for controlling a first steering operation of the head end module 70 of the endoscope 1 in a first direction plane (for example, an XZ plane formed by the X axis and the Z axis of fig. 1). The first limiting member 22 is disposed adjacent to the first control wheel 21, and enters the first braking state from the first releasing state when pressed, so as to limit the first steering operation, and when the first control wheel 21 is further forced to rotate, the first limiting member 22 is disengaged from the first braking state, and returns to the first releasing state. The second control wheel 25 is stacked on the first control wheel 21, and is used to control a second steering operation of the head end module 70 on a second direction plane (for example, a YZ plane formed by the Y axis and the Z axis in fig. 1). The second limiting member 26 is disposed adjacent to the second control wheel 25, and when pressed, enters the second braking state from the second releasing state to limit the second steering operation, and when the second control wheel 25 is further forced to rotate, the second limiting member 26 is disengaged from the second braking state and returns to the second releasing state.

With continued reference to fig. 2 and 4, the control handle 10 includes at least an upper housing 11 and a lower housing 12 assembled to each other, and the steering control assembly 20 is disposed on the upper housing 11. In this embodiment, the steering control assembly 20 further includes a first turntable 31 and a second turntable 32 disposed up and down. The first rotary disk 31 rotates together with the first control wheel 21. One end of the first thin wire is connected to the first turntable 31, and the other end is connected to the head module 70. The first control wheel 21 rotates to drive the first thin wire to move through the first turntable 31, so as to control the first steering operation of the head end module 70 on, for example, the first direction plane XZ. Taking the direction of fig. 1 as an example, the head end module 70 is driven to swing in the left-right direction.

The second turntable 32 rotates together with the second control wheel 25. One end of the second thread is connected to the second turntable 32 and the other end is connected to the head module 70. The second control wheel 25 rotates to drive the second thin wire to move through the second turntable 32, so as to control the second steering operation of the head end module 70 on, for example, the second direction plane YZ. Taking the direction of fig. 1 as an example, the head end module 70 is driven to swing up and down.

The content of the first restriction 22 restricting the first steering operation is further described below. Referring to fig. 2, 4, 5 and 6, fig. 5 is a schematic view of the first limiter in the first braking state, and fig. 6 is a schematic view of the first limiter in the first releasing state. It should be noted that, in fig. 5 and 6, some elements of the endoscope 1 are omitted, so that those skilled in the art can well understand the features of the embodiments of the present utility model.

In this embodiment, the first control wheel 21 has a first friction interface 21a, and the first limiter 22 has a first brake end 221, and when the first brake state is entered (i.e., the state of fig. 5), the first brake end 221 abuts against the first friction interface 21a, thereby limiting the first steering operation. The steering control assembly 20 of the present embodiment further includes a first elastic member 23 disposed on one side of the first restriction member 22, and when the first braking state is entered, the first elastic member 23 is in an elastically compressed state. In the first braking state of fig. 5, the first braking end 221 of the first limiter 22 abuts against the first friction abutment surface 21a by static friction force, and limits the rotation of the first control wheel 21. In this case, as long as the biasing force applied to the first control wheel 21 is smaller than the aforementioned static friction force, the first brake end 221 can be maintained in abutment against the first friction abutment surface 21a in such a manner that the first control wheel 21 does not rotate at will, thereby achieving the effect of restricting the first steering operation.

When the force applied to the first control wheel 21 is greater than the aforementioned static friction force, the first control wheel 21 is further rotated. When the first control wheel 21 is further forced to rotate, the first elastic member 23 applies a force to the first limiting member 22 to disengage the first braking end 221 from the first friction interface 21a, so that the first limiting member 22 is disengaged from the first braking state, and returns to the first release state, as shown in fig. 6.

The first limiting member 22 is described in more detail below. In the present embodiment, the first limiting member 22 has a first braking end 221, a pivot 222, and a first pressing end 223. The first limiting member 22 is a lever actuating member and is connected to the control handle 10 via a pivot point 222, and the first pressed end 223 and the first brake end 221 are respectively located at two opposite sides of the pivot point 222. The first elastic member 23 is disposed between the first pressure receiving end 223 and the control handle 10 so as to apply a force to the first restriction member 22 via the first pressure receiving end 223. When the first pressure receiving end 223 is pressed downward, the first brake end 221 moves upward and contacts the first friction joint 21a, and enters the first brake state. When the first control wheel 21 further rotates, the first braking end 221 and the first friction interface 21a enter a dynamic friction state, and at this time, the first elastic member 23 elastically applies force to the first pressed end 223 to move the first pressed end 223 upwards, so that the first braking end 221 is relatively separated from contact with the first friction interface 21a downwards.

The first friction interface 21a may be formed by two-material molding or surface treatment at a corresponding position on the first control wheel 21 to form a surface with high friction force for the first brake end 221 to abut. In one embodiment, the first control wheel 21 includes a first rubber ring 24 (e.g. rubber sealing ring) sleeved on the shaft portion of the first control wheel 21, and the surface of the first rubber ring 24 facing the shaft portion is used as the first friction interface 21a.

The content of the second restriction 26 restricting the second steering operation is further described below. Referring to fig. 2, 4, 7 and 8, fig. 7 is a schematic view of the second limiter in the second braking state, and fig. 8 is a schematic view of the second limiter in the second releasing state. Similarly, some of the elements of the endoscope 1 are omitted from fig. 7 and 8, so that those skilled in the art can well understand the features of the embodiments of the present utility model.

The steering control assembly 20 of the present embodiment further includes an inner shaft member 28 disposed inside the shaft portion of the second control wheel 25 for axially fixing the second control wheel 25, and the inner shaft member 28 has a second friction interface 28a. The second restriction member 26 rotates together with the second control wheel 25, and the second restriction member 26 has a second brake end 261, and when the second brake state (i.e., the state of fig. 7) is entered, the second brake end 261 abuts against the second friction engagement surface 28a, thereby restricting the second steering operation. The steering control assembly 20 of the present embodiment further includes a second elastic member 27 disposed between the second restriction member 26 and the inner shaft member 28, and the second elastic member 27 is in an elastically compressed state when entering the second braking state. In the second braking state of fig. 7, the second braking end 261 of the second limiter 26 abuts against the second friction abutment surface 28a by static friction force, and limits the rotation of the second control wheel 25. In this case, as long as the biasing force applied to the second control wheel 25 is smaller than the aforementioned static friction force, the second brake end 261 can be maintained in abutment against the second friction abutment surface 28a in such a manner that the second control wheel 25 does not rotate at will, thereby achieving the effect of restricting the second steering operation.

When the force applied to the second control wheel 25 is greater than the aforementioned static friction force, the second control wheel 25 is further rotated. When the second control wheel 25 is further forced to rotate, the second elastic member 27 applies force to the second limiting member 26 to disengage the second braking end 261 from the second friction interface 28a, so that the second limiting member 26 is disengaged from the second braking state, and returns to the second release state as shown in fig. 8.

The second limiter 26 is described in more detail below. In this embodiment, the second limiting member 26 has a second braking end 261 and a second pressed end 262 protruding from the surface of the second control wheel 25, and the second braking end 261 and the second pressed end 261 are respectively located at two opposite sides of the second limiting member 26. The second elastic member 27 is disposed between the second pressure receiving end 262 and the inner shaft 28, so as to apply a force to the second limiting member 26 through the second pressure receiving end 262. When the second pressing end 262 is pressed downward, the second limiting member 26 moves downward, and the second braking end 261 is pressed by the shaft portion of the second control wheel 25 to bend inward, and finally contacts the second friction joint 28a, so as to enter the first braking state. When the second control wheel 25 further rotates, the second braking end 261 and the second friction joint 28a enter a dynamic friction state, and at this time, the second elastic member 27 elastically applies force to the second pressed end 262 to move the second limiting member 26 upwards, so that the second braking end 261 is separated from contact with the second friction joint 28a.

The second friction interface 28a may be formed by two-shot molding or surface treatment at a corresponding location on the inner shaft member 28 to form a surface with a high friction force for the second brake end 261 to abut. In one embodiment, the inner shaft 28 includes a second rubber ring 29 (e.g., rubber sealing ring) sleeved in an annular groove 281 on a surface of the inner shaft 28, and a surface of the second rubber ring 29 facing the outer surface of the inner shaft 28 is used as a second friction interface 28a.

In the steering control assembly 20 of the foregoing embodiment, when the first restriction member 22 or the second restriction member 26 is pressed, the first brake end 221 or the second brake end 261 abuts against the first friction interface 21a of the first control wheel 21 or the second friction interface 28a of the inner shaft 28, and the rotation of the first control wheel 21 or the second control wheel 25 is restricted, so that the technical effect of restricting the first steering operation or the second steering operation is achieved. As long as the first control wheel 21 or the second control wheel 25 is further forced to rotate, the first limiting piece 22 or the second limiting piece 26 is separated from the first braking state or the second braking state and returns to the first releasing state or the second releasing state, and at this time, the control wheel can be freely operated, so that the technical effect of quickly releasing the braking state is achieved. In this way, it is possible to enhance the convenience of operation, achieve the effect of one-handed operation and adjustment of the angle of the head end module 70, and enhance the convenience of operating the endoscope 1.

A steering control assembly for an endoscope according to an embodiment of the present utility model includes: the first control wheel is arranged on one side of the control handle of the endoscope and used for controlling the first steering operation of the head end module of the endoscope on a first direction plane; the first limiting piece is arranged at a position adjacent to the first control wheel, enters a first braking state from a first releasing state when being pressed and is used for limiting the first steering operation, and when the first control wheel is further forced to rotate, the first limiting piece is separated from the first braking state and returns to the first releasing state; the second control wheel is overlapped on the first control wheel and used for controlling the second steering operation of the head end module on a second direction plane; and the second limiting piece is arranged at a position adjacent to the second control wheel, enters a second braking state from a second releasing state when being pressed and is used for limiting the second steering operation, and when the second control wheel is further stressed to rotate, the second limiting piece is separated from the second braking state and returns to the second releasing state. Therefore, the effect of quickly and conveniently adjusting the angle of the head end module can be achieved, and the convenience of operating the endoscope is improved.

In one embodiment of the present utility model, the first control wheel has a first friction interface, and the first limiting member has a first braking end, and when the first braking state is entered, the first braking end abuts against the first friction interface, so as to limit the first steering operation. The static friction force is utilized to maintain the abutting connection with the first friction joint, and the device has the advantages of simple structure and low cost.

In an embodiment of the present utility model, the steering control assembly further includes a first elastic member disposed at one side of the first limiting member, wherein the first elastic member is in an elastic compression state when entering the first braking state, and when the first control wheel is further forced to rotate, the first elastic member applies a force to the first limiting member to disengage the first braking end from the contact with the first friction interface, so that the first limiting member is disengaged from the first braking state. The brake state can be separated only by further rotating the control wheel, and the brake device has the advantage of convenience in operation.

In an embodiment of the utility model, the first limiting piece is a lever actuating piece and is connected to the control handle through a pivot point, the first limiting piece is further provided with a first compression end and a first braking end which are respectively positioned at two opposite sides of the pivot point, and the first elastic piece is arranged between the first compression end and the control handle. The first limiting piece has the advantage of simple structure.

In an embodiment of the utility model, the first control wheel includes a first rubber ring sleeved on a shaft portion of the first control wheel, and a surface of the first rubber ring facing the shaft portion is used as the first friction joint. The rubber ring is used as a friction joint, and the friction joint has the advantages of simple structure and low cost.

In one embodiment of the present utility model, the steering control assembly further includes an inner shaft member disposed inside the shaft portion of the second control wheel for axially fixing the second control wheel. The inner shaft member has a second friction interface, and the second limiter rotates with the second control wheel and has a second brake end that abuts the second friction interface when the second brake state is entered, thereby limiting the second steering operation. The inner shaft member is utilized to achieve the effects of fixing the control wheel and enabling the brake end to be abutted, so that the number of parts can be reduced, and the steering control assembly has the advantages of being simple in structure and low in cost.

In an embodiment of the utility model, the steering control assembly further includes a second elastic member disposed between the second limiting member and the inner shaft member, wherein the second elastic member is in an elastic compression state when entering the second braking state, and the second elastic member applies a force to the second limiting member when the second control wheel is further rotated under force, so that the second braking end is separated from contact with the second friction joint, and the second limiting member is separated from the second braking state. The brake state can be separated only by further rotating the control wheel, and the brake device has the advantage of convenience in operation.

In an embodiment of the present utility model, the inner shaft member includes a second rubber ring sleeved in the annular groove on the surface of the inner shaft member, and a surface of the second rubber ring facing the outer surface of the inner shaft member is used as the second friction interface. The rubber ring is used as a friction joint, and the friction joint has the advantages of simple structure and low cost.

An endoscope in accordance with an embodiment of the present utility model includes the steering control assembly of the previous embodiments, as well as the advantages described above.

The above detailed description of the embodiments of the present utility model provides a steering control assembly and an endoscope, in which a control wheel is braked by a limiting member, and when the control wheel is further forced to rotate, the limiting member returns to a release state, so that the operation is convenient, the angle of a head end module is locked or adjusted, the technical effect of improving the convenience of operating the endoscope is achieved, and the endoscope has the advantages of simple structure, low cost and the like.

The foregoing description is only a preferred embodiment of the present utility model and is not intended to limit the utility model in any way, but the preferred embodiment is disclosed above, but is not intended to limit the utility model, and any person skilled in the art should make some changes or modifications to the equivalent embodiment without departing from the scope of the utility model, and any simple modification, equivalent change and modification made to the above embodiment according to the essential core technology of the utility model falls within the scope of the utility model.

Claims (10)

1. A steering control assembly for an endoscope, comprising:

the first control wheel is arranged on one side of the control handle of the endoscope and used for controlling first steering operation of the head end module of the endoscope on a first direction plane;

the first limiting piece is arranged at a position adjacent to the first control wheel, enters a first braking state from a first releasing state when being pressed and is used for limiting the first steering operation, and when the first control wheel is further stressed to rotate, the first limiting piece is separated from the first braking state and returns to the first releasing state;

the second control wheel is overlapped on the first control wheel and is used for controlling the second steering operation of the head end module on a second direction plane; and

the second limiting piece is arranged at a position adjacent to the second control wheel, enters a second braking state from a second releasing state when being pressed and is used for limiting the second steering operation, and when the second control wheel is further stressed to rotate, the second limiting piece is separated from the second braking state and returns to the second releasing state.

2. The steering control assembly as set forth in claim 1, wherein: the first control wheel has a first friction interface, and the first limiting member has a first brake end that abuts the first friction interface when entering the first braking state, thereby limiting the first steering operation.

3. The steering control assembly as set forth in claim 2, wherein: the brake device further comprises a first elastic piece, wherein the first elastic piece is arranged on one side of the first limiting piece, when the brake device enters the first braking state, the first elastic piece is in an elastic compression state, and when the first control wheel is further stressed to rotate, the first elastic piece applies force to the first limiting piece, so that the first braking end is separated from contact with the first friction joint surface, and the first limiting piece is separated from the first braking state.

4. A steering control assembly as in claim 3, wherein: the first limiting piece is a lever actuating piece and is connected with the control handle through a pivot fulcrum, the first limiting piece is further provided with a first pressure end, the first pressure end and the first braking end are respectively positioned on two opposite sides of the pivot fulcrum, and the first elastic piece is arranged between the first pressure end and the control handle.

5. The steering control assembly as set forth in claim 2, wherein: the first control wheel comprises a first rubber ring which is sleeved on the shaft part of the first control wheel, and the surface of the first rubber ring, which faces to the outer side of the shaft part, is used as the first friction joint.

6. The steering control assembly as set forth in claim 1, wherein: the inner shaft piece is arranged on the inner side of the shaft part of the second control wheel and is used for axially fixing the second control wheel.

7. The steering control assembly as set forth in claim 6, wherein: the inner shaft member has a second friction interface, and the second limiter rotates with the second control wheel and has a second brake end that abuts the second friction interface when entering the second brake state, thereby limiting the second steering operation.

8. The steering control assembly as set forth in claim 7, wherein: the second elastic piece is arranged between the second limiting piece and the inner shaft piece, when the second braking state is entered, the second elastic piece is in an elastic compression state, and when the second control wheel is further stressed to rotate, the second elastic piece applies force to the second limiting piece, so that the second braking end is separated from contact with the second friction joint, and the second limiting piece is separated from the second braking state.

9. The steering control assembly as set forth in claim 7, wherein: the inner shaft piece comprises a second rubber ring which is sleeved in an annular groove on the surface of the inner shaft piece, and the surface of the second rubber ring, which faces to the outer side of the inner shaft piece, is used as the second friction joint.

10. An endoscope comprising the steering control assembly of any one of claims 1 to 9.