CN219183638U

CN219183638U - Novel endoscope control and damping mechanism

Info

Publication number: CN219183638U
Application number: CN202223226500.6U
Authority: CN
Inventors: 曾志刚; 张刚文
Original assignee: Avanline Digital Tech Co ltd
Current assignee: Avanline Digital Tech Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-16
Anticipated expiration: 2032-12-01

Abstract

The utility model provides a novel endoscope operation and damping mechanism which comprises an operation handle, a base plate, a rotating shaft, a steel cable wheel, a guide block, a locking disc, a rotating gear and a transmission gear, wherein the rotating shaft penetrates through the base and is connected with the operation handle, the steel cable wheel is connected with the tail end of the rotating shaft, the guide block is sleeved in the middle of the rotating shaft, the locking disc is sleeved in the middle of the guide block, the rotating gear is sleeved on one side of the guide block close to the base plate, the transmission gear is meshed with the rotating gear, the locking handle is connected with the transmission gear, a first wedge-shaped block is arranged at one end of the rotating gear close to the locking disc, a second wedge-shaped block is arranged at the position, corresponding to the first wedge-shaped block, of the locking disc, the outer side of the rotating shaft is connected with the operation handle, and one end of the locking handle is connected with the transmission gear through a middle shaft. Above-mentioned novel endoscope is controlled and damping mechanism realizes the regulation of damping, and then realizes adjusting the control range of control handle, has improved man-machine relation, can lock the front end bending angle, and then realizes accurate control.

Description

Novel endoscope control and damping mechanism

Technical Field

The utility model relates to the technical field of endoscopes, in particular to a novel endoscope operation and damping mechanism.

Background

Endoscopes are detection instruments that integrate traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, and the like. An optical lens, light source illumination, mechanical device, etc. with an image sensor, it can be passed into the stomach through the mouth or into the body through other natural tunnels.

The prior endoscope comprises a display component, a machine body shell connected with the display component, an operating mechanism arranged in the machine body shell, an operating handle arranged on the outer side of the machine body shell, a steel cable connected with the operating mechanism, a front end bending part arranged at the tail end of the steel cable, and a camera arranged on the front end bending part, wherein the front end bending part can be bent by manually stirring the operating handle, and the swing amplitude of the operating handle can change the bending angle. This requires the addition of an adjustable damping device, however, endoscopes often incorporate a number of components therein, which are very demanding in terms of space requirements, and it is important how to construct a reliable, compact-sized damping device.

Disclosure of Invention

The utility model aims to provide a novel endoscope operation and damping mechanism to solve the problems of endoscope operation handfeel and accurate operation of a front end bending part.

The utility model provides a novel endoscope operation and damping mechanism which comprises an operation handle, a base plate, a rotating shaft penetrating through the base plate and connected with the operation handle, a steel rope pulley connected with the tail end of the rotating shaft, a guide block sleeved in the middle of the rotating shaft, a locking disc sleeved in the middle of the guide block, a rotating gear sleeved on one side of the guide block close to the base plate, a transmission gear meshed with the rotating gear, and a locking handle connected with the transmission gear, wherein a first wedge-shaped block is arranged at one end of the rotating gear close to the locking disc, a second wedge-shaped block is arranged at a position, corresponding to the first wedge-shaped block, of the locking disc, the outer side of the rotating shaft is connected with the operation handle, and one end of the locking handle is fastened with the transmission gear through an intermediate shaft. The intermediate shaft passes through the base plate, and the transmission gear can be driven to rotate by swinging the locking handle.

According to the novel endoscope control and damping mechanism, the base plate is fixed relative to the machine body shell, the rotating shaft penetrates through the middle hole of the base plate and is sleeved in the inner hole of the guide block, the control handle is fixed at the right end of the rotating shaft, the control handle is swung, the rotating shaft can rotate relative to the guide block, the steel rope wheel is fixed at the left end of the rotating shaft, the steel rope wheel is fixed with a steel rope, the steel rope is limited in a circumferential groove of the steel rope wheel, two ends of the steel rope are led out along the circumferential tangential direction, when the control handle is swung, the steel rope wheel rotates by an angle, and the steel rope pulls the front end bending part to perform bending action; the left end face of the guide block is close to the end face of the steel rope wheel, the outer circle of the right part is provided with an axial guide surface, the locking disc is sleeved on the guide block, the inner hole of the locking disc is provided with a guide surface matched with the guide block, and the guide surface can axially slide relatively and cannot rotate relatively; the right end of the guide block is inserted into the base plate and is relatively fixed; the rotary gear is sleeved on the guide block and can rotate relatively. The jackshaft passes the base plate, and fixed locking handle of one end, and fixed drive gear of one end, swing locking handle, drive gear correspondingly rotate certain angle, because drive gear and rotary gear meshing, therefore drive gear can drive rotary gear and pass an angle, when locking handle is from loosening the attitude of turning to locking direction swing, rotary gear rotates an angle, under the effect of first wedge type piece and second wedge type piece, promote the locking dish and remove left, oppression cable wheel terminal surface, because the locking dish can not rotate relative steel cable wheel, both produce frictional force, make cable wheel rotate the difficulty to make the control handle dynamics increase, realize damped regulation.

Further, the cable holding cover is arranged outside the cable wheel. The pull cable retention cap prevents the cable from tripping out of the circumferential groove,

further, the left side of the guide block is provided with a convex edge, and an elastic gasket is arranged between the convex edge and the locking disc.

Further, the elastic gasket comprises a connecting ring and elastic bulges which are arranged around the connecting ring at intervals.

Drawings

FIG. 1 is a state diagram of the application of the novel endoscope steering and damping mechanism in a first embodiment of the present utility model;

FIG. 2 is a perspective view of the novel endoscope steering and damping mechanism of FIG. 1;

FIG. 3 is an exploded view of the novel endoscope steering and damping mechanism of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the novel endoscope steering and damping mechanism of FIG. 2;

FIG. 5 is a schematic view of the structure of the locking disc and rotary gear of the novel endoscope steering and damping mechanism of FIG. 2;

fig. 6 is a schematic view of the structure of the locking plate of fig. 5.

Description of main reference numerals:

control handle	10	Second wedge block	61	Transmission gear	80
						Substrate board	20	Elastic pad	62	Locking handle	90
Steel rope retaining cover	21	Connecting ring	621	Fuselage shell	100
						Rotating shaft	30	Elastic bulge	622	Steel rope	200
Steel rope wheel	40	Rotary gear	70	Tip bending portion	300
						Guide block	50	Intermediate shaft	81
Locking disc	60	First wedge block	71

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, a novel endoscope operation and damping mechanism according to a first embodiment of the present utility model includes an operation handle 10, a base plate 20, a rotating shaft 30 penetrating through the base plate 20 and connected to the operation handle 10, a wire rope wheel 40 connected to a distal end of the rotating shaft 30, a guide block 50 sleeved in a middle portion of the rotating shaft 30, a locking disc 60 sleeved in a middle portion of the guide block 50, a rotating gear 70 sleeved on a side of the guide block 50 near the base plate 20, a transmission gear 80 connected to the rotating gear 70, and an intermediate shaft 81 fixed to the transmission gear 80, wherein the intermediate shaft penetrates through the base plate 20 and is connected to a locking handle 90 of the intermediate shaft, a first wedge 71 is provided at one end of the rotating gear 70 near the locking disc 60, a second wedge 61 is provided at a position of the locking disc 60 corresponding to the first wedge 71, and an outer side of the rotating shaft 30 is connected to the operation handle 10.

In the novel endoscope operation and damping mechanism, a base plate 20 is fixed relative to a machine body shell 100, a rotating shaft 30 penetrates through a middle hole of the base plate 20 and is sleeved in an inner hole of a guide block 50, an operation handle 10 is fixed at the right end of the rotating shaft 30, the operation handle 10 is swung, the rotating shaft 30 can rotate relative to the guide block 50, a steel rope wheel 40 is fixed at the left end of the rotating shaft 30, a steel rope 200 is fixed on the steel rope wheel 40, the steel rope 200 is limited in a circumferential groove of the steel rope wheel 40, two ends of the steel rope 200 are led out along the circumferential tangential direction, when the operation handle 10 is swung, the steel rope wheel 40 rotates by an angle, and the steel rope 200 pulls a front end bending part 300 to perform bending action; the left end face of the guide block 50 is close to the end face of the steel rope wheel 40, the outer circle of the right part is provided with an axial guide surface, the locking disc 60 is sleeved on the guide block 50, the inner hole of the locking disc 60 is provided with a guide surface matched with the guide block 50, and the guide surface can axially slide relatively and cannot rotate relatively; the right end of the guide block 50 is inserted into the base plate 20 and is relatively fixed; the rotating gear 70 is sleeved on the guide block 50 and can rotate relatively, the intermediate shaft 81 passes through the base plate 20, one end of the intermediate shaft is fixedly provided with the locking handle 90, the other end of the intermediate shaft is fixedly provided with the transmission gear 80, the locking handle 90 is swung, and the transmission gear 80 rotates correspondingly by a certain angle, because the transmission gear 80 is meshed with the rotating gear 70, the transmission gear 80 can drive the rotating gear 70 to rotate by an angle, when the locking handle 90 swings from a release rotation state to a locking direction, the rotating gear 70 rotates by an angle, under the action of the first wedge-shaped block 71 and the second wedge-shaped block 61, the locking disc 60 is pushed to move leftwards to press the end face of the steel cable wheel 40, and friction force is generated between the locking disc 60 and the steel cable wheel 40 because the locking disc 60 cannot rotate relative to the steel cable wheel 40, so that the steel cable wheel 40 is difficult to rotate, the strength of the operating handle 10 is increased, the damping adjustment is realized, the operation amplitude of the operating handle 10 is adjusted, and the accurate operation of the front end bending part 300 is realized.

In the embodiment of the present utility model, the steel cable holding cover 21 is further provided on the outer side of the base plate 20 to prevent the steel cable 200 from being separated from the circumferential groove.

In the embodiment of the present utility model, the left side of the guide block 50 is provided with a protruding edge, and an elastic spacer 62 is provided between the protruding edge and the locking disc 60. During locking, the locking disc 60 compresses the resilient washer 62 against the spring force towards the cable pulley 40. When the locking handle 90 is released to swing in the opposite direction, the locking disc 60 moves rightward away from the cable pulley 40 by the elastic force, and the first wedge 71 and the second wedge 61 slide relatively to the initial position, and the locking handle 90 is in the released rotation state. The front end bending part 300 can be bent by manually stirring the control handle 10, the swing amplitude of the control handle 10 can change the bending angle, the locking handle 90 is arranged at the side edge of the control handle 10, the locking handle 90 is rotated, and the internal gear (the rotating gear 70 and the transmission gear 80) and the wedge lifting mechanism (the first wedge-shaped block 71 and the second wedge-shaped block 61) are converted into a mode of generating pressure on the end face of the steel cable pulley 40, so that the damping is changed, the force of the control handle 10 is adjusted, and the accurate control of the front end bending part 300 is realized

Specifically, the elastic pad 62 includes a connection ring 621 and elastic protrusions 622 spaced around the connection ring 621, so that the elastic pad 62 is easily restored.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a novel endoscope is manipulated and damping mechanism, its characterized in that, including control handle, base plate, pass the base plate and with the pivot of control handle connection, with the steel cable wheel of the terminal connection of pivot, cover are located the guide block at pivot middle part, cover are located the locking dish at guide block middle part, cover are located the guide block is close to the rotation gear of base plate one side, with rotation gear meshing's drive gear, and with the locking handle that drive gear connects, rotation gear is close to locking dish one end is equipped with first wedge, locking dish with the position that first wedge corresponds is equipped with the second wedge, the outside of pivot with control handle connects, locking handle one end pass through the jackshaft with drive gear fastening connection.

2. The novel endoscope steering and damping mechanism of claim 1, further comprising a cable retaining cover disposed outside of said cable wheel.

3. The novel endoscope operation and damping mechanism according to claim 1, wherein the left side of the guide block is provided with a convex edge, and an elastic gasket is arranged between the convex edge and the locking disc.

4. The novel endoscope steering and damping mechanism of claim 3, wherein said resilient spacer comprises a connecting ring and resilient protrusions spaced around said connecting ring.