CN116138707A - Locking device for endoscope adjustment and locking device - Google Patents

Abstract

The present application provides a locking device for endoscope adjustment, a first pulley of the locking device being connected to a first end of the first shaft; a first traction disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first traction disc and the first rotating shaft; the braking part is provided with a first braking head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a braking handle connected with the first braking head; the rotation angle of the first brake head can be controlled through a brake handle; a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and the tensioning force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and the different tensioning forces are applied, so that the desired damping is provided for the rotation of the first rotating shaft. The method and the device can improve the angle flexibility and stability of the operation endoscope lens.

Description

Locking device for endoscope adjustment and locking device

Technical Field

The present application relates to the field of medical devices, and more particularly to a locking device for endoscopic adjustment and a locking device.

Background

With the development of modern medical technology, the development of medical technology and the popularization of advanced medical equipment, endoscope equipment is increasingly and widely applied to daily medical operations.

The endoscope apparatus is a commonly used medical apparatus, and the main components are a traction wire, a bendable part, a light source, a lens and the like. In practical application, the front end lens of the endoscope enters the human body through the minimally invasive incision, and after the front end lens of the endoscope is usually adjusted to a proper position, the lens of the endoscope is fixed at a certain angle, a locking device is assembled on the endoscope for facilitating the observation of a lesion part, the movement control of a bendable part is realized through the locking device at the rear end of the endoscope, the adjustment of the observation angle of the front end lens of the endoscope is further realized, and the lesion condition of the relevant part is directly peeped. The endoscope locking device is used as an important component in actual operation and plays a vital role in realizing the observation of a lesion.

In the existing endoscope locking device, the locking hand wheel is generally used for realizing adjustment of the lens, and the problems of insufficient stability, low precision, inflexible bending angle and the like exist when the endoscope locking device manipulates the lens in the operation process, so how to provide the locking device for endoscope adjustment so as to improve the angle flexibility and stability of the endoscope lens in the operation process, and the problem becomes a technical problem to be solved by a person skilled in the art.

Disclosure of Invention

The application provides a locking device for endoscope adjustment to solve current endoscope locking structure operation stability inadequately, precision is not high, the inflexible problem of bending angle. The application also provides a locking device.

According to an embodiment of the present application, there is provided a locking device for endoscope adjustment, including: the device comprises a first rotating wheel, a first rotating shaft and a braking part;

the first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first traction disc and the first rotating shaft;

the brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending out radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle;

a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and different tension forces are applied, so that expected damping is provided for the rotation of the first rotating shaft; rotation of the first traction disk is used to adjust the first traction wire, thereby adjusting the viewing angle of the endoscope in a first dimension.

In one implementation, the braking clutch mechanism is a spacer fixed to the housing of the locking device, and the spacer is disposed opposite to the end face of the first braking groove on the first traction disc; the utility model discloses a tensioning device for a bicycle, including a spacer, a first traction disc, a tensioning piece, a spring plate, a tensioning piece, a spring plate and a spring plate, wherein the spacer is provided with at least one cantilever structure that stretches out from the spacer end face on the end face opposite to the first traction disc as the tensioning piece, the tensioning piece stretches into the first braking groove, the outer peripheral surface of the tensioning piece is made to be close to the inner diameter face of the first braking groove, the tensioning piece can be made to radially expand through radial extrusion of the tensioning piece, thereby the outer diameter face of the tensioning piece is made to be attached to the inner diameter face of the first braking groove, tensioning force is applied to the inner diameter face of the first braking groove, the degree of tightness of the attaching of the tensioning piece to the inner diameter face of the first braking groove can be adjusted through different extrusion degrees, and different tensioning forces are applied to the inner diameter face of the first braking groove.

In one implementation, the outer circumferential surface of the first brake head is provided with an extrusion boss matched with the tensioning piece, the first brake head rotates to different angles on the first rotating shaft, so that the extrusion boss is located at different angle positions on the circumference, is located at a joint or separation position between the extrusion boss and the tensioning piece, and is located at different joint degrees, and therefore the radial extrusion of the tensioning piece is achieved, and the different extrusion degrees are obtained.

In one embodiment, the tensioning sheet has different inner diameter dimensions along the circumferential direction, so that different degrees of compression can be achieved at different positions of engagement when the compression boss engages the tensioning sheet.

In one implementation, the tensioning sheet is provided with a plurality of positions and is arranged around the circumferential surface of the first brake head corresponding to the first brake head; the plurality of tension sheets are uniformly arranged on the circumference or unevenly arranged.

In one implementation manner, the spacer is sleeved on the first rotating shaft, a set gap is reserved between the spacer and the first rotating shaft, an arc-shaped through hole extending upwards in a set radian is further formed in the peripheral surface of the spacer, a brake handle of the brake part penetrates through the arc-shaped through hole of the brake clutch mechanism and extends out in the radial direction, the arc-shaped through hole provides space for the swing of the brake handle and limits the moving range, and the swing of the brake handle drives the first brake head to rotate, so that the first brake head rotates to different angles on the first rotating shaft.

In one implementation, the locking device further includes: the second rotating wheel and the second rotating shaft;

The second rotating wheel is connected to the first end of the second rotating shaft, the first rotating shaft and the second rotating shaft are coaxial, and the second rotating shaft is sleeved on the peripheral surface of the first rotating shaft; a second traction disc is arranged at the position, close to the second end, of the second rotating shaft; a second braking groove is formed in the joint part of the second traction disc and the first rotating shaft; when the braking clutch mechanism applies tensioning force to the inner diameter surface of the first braking groove, the tensioning force can be applied to the inner diameter surface of the second braking groove, so that expected damping is provided for the rotation of the second rotating shaft; rotation of the second traction disk is used to adjust a second traction wire, thereby adjusting an observation angle of the endoscope in a second dimension, the second dimension being in a different directional dimension than the first dimension.

In one implementation, the first braking groove and the second braking groove are respectively arranged on opposite end surfaces of the first traction disc and the second traction disc.

The application also provides a locking device which comprises a first rotating wheel, a first rotating shaft and a braking part;

the first rotating wheel is connected to the first end of the first rotating shaft; a first functional disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first functional disc and the first rotating shaft;

The brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending out radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle;

a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and different tension forces are applied, so that expected damping is provided for the rotation of the first rotating shaft.

The invention provides a locking device for endoscope adjustment, which comprises a first rotating wheel, a first rotating shaft and a braking part, wherein the first rotating wheel is provided with a first rotating shaft; the first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first traction disc and the first rotating shaft; the brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle; a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and different tension forces are applied, so that expected damping is provided for the rotation of the first rotating shaft; because the brake part can provide controllable damping to the rotation of first pivot, and then realize the bending and the fixed of endoscope distal end flexion under any angle when locking device work, finally realize the angular flexibility and the stability of endoscope camera lens in the endoscope operation process, improved the efficiency of operation.

Drawings

The foregoing and other objects, features and advantages of embodiments of the present application will become more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Various embodiments of the application will now be described, by way of example and not limitation, in the figures of the accompanying drawings, in which:

FIG. 1 is a schematic cross-sectional view of a locking device for endoscope adjustment according to a first embodiment of the present application;

FIG. 2 is a schematic view of the locking device of FIG. 1 from another perspective;

FIG. 3 is a schematic view showing the locking device of FIG. 1 in a non-locked state;

FIG. 4 is a schematic view of a brake clutch mechanism in the locking device of FIG. 1;

FIG. 5 is a schematic view of a brake assembly of the locking device of FIG. 1;

FIG. 6 is a schematic view of a first traction disk of the locking device of FIG. 1;

reference numerals:

first embodiment part reference numerals:

10-locking device;

100-a runner assembly; 110-a first wheel assembly; 111-a first wheel; 113-a first spindle; 115-a first traction disk; 1151-a first traction disk groove; 1153-a first traction wire; 1155-a first traction aperture; 1157-a first traction disk central aperture; 1159-a first detent recess; 11591-first detent groove inner diameter face;

130-a second wheel assembly; 131-a second wheel; 133-a second spindle; 135-a second traction disk; 1351-second traction disk groove; 1359-second detent; 13591-second detent groove inner diameter face;

300-a brake part; 310-a first brake head; 311-extruding the boss; 3111-extruding a boss portion; 3113-squeezing the boss two; 313-brake head central hole; 330-brake handle;

350-a brake clutch mechanism; 351—brake clutch mechanism body (spacer); 353-tensioning piece; 3531-tensioning piece part; 3533-tensioning tab two; 355—brake clutch mechanism center hole; 357-locating holes; 359-arc-shaped through holes;

second embodiment part reference numerals:

115' -first function disk; 135' -second function disk; reference numerals are otherwise made to the first embodiment.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the related art endoscope locking structure, a locking hand wheel is generally used for realizing adjustment of a lens, and the problems of insufficient stability, low precision, inflexible bending angle and the like exist when a plurality of endoscope locking structures operate the lens in the operation process. In view of the above, the present application provides a locking device for endoscope adjustment, which includes a first rotating wheel, a first rotating shaft, and a brake portion; the first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first traction disc and the first rotating shaft; the brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle; a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and different tension forces are applied, so that expected damping is provided for the rotation of the first rotating shaft; rotation of the first traction disk is used for adjusting the first traction wire, so that the observation angle of the endoscope in the first dimension is adjusted; through adjusting the rotation damping size of the first traction disk, the first traction disk realizes the retraction control of the first traction disk on the first traction wire under the action of friction forces of different sizes, and further realizes the adjustment of the first traction wire on the angle and the position of the endoscope lens in a first dimension, thereby being beneficial to the bending and the fixation of the bending part at the distal end of the endoscope under any angle, finally realizing the angle flexibility and the stability of the endoscope lens in the operation process of the endoscope and improving the operation efficiency.

While several alternative implementations of the present disclosure are described below in connection with the accompanying drawings, it should be understood by those skilled in the art that the following implementations are merely illustrative and not an exhaustive list, and that certain features or certain examples may be substituted, combined, or combined by those skilled in the art on the basis of these implementations, which are still to be regarded as the disclosure of the present disclosure.

A first embodiment of the present application will be described in detail with reference to fig. 1 to 6.

As shown in fig. 1, a schematic cross-sectional structure of a locking device 10 for endoscope adjustment is provided in this embodiment; the left side of fig. 1 is a first end of the locking device 10, i.e. an end provided with a runner assembly 100; the right side of fig. 1 shows the second end of the locking device 10, i.e. the end of the braking portion 300; in the view of the figure, the brake 300 is not shown, since the brake 300 blocking the view is not shown in all the components, and the schematic view of fig. 3 is also referred to for the sake of easy understanding. Fig. 2 and 3 are schematic views of the locking device 10 of fig. 1 in an unlocked state. Fig. 2 and 3 are schematic structural views of the locking device 10 in fig. 1 from the perspective of making the second end of the locking device 10, i.e. the end of the braking portion 300, face out of the paper after clockwise rotation; the locking device 10 in fig. 3 does not show a first traction disk blocking the view.

As shown in fig. 1, the locking device 10 includes the following components or parts: a rotor assembly 100; a braking portion 300.

The arrangement of the above-described individual components can be described generally as follows: the wheel assembly 100 is located at a first end (left side in fig. 1) of the locking device 10, the brake part 300 is located at a second end (right side in fig. 1) of the locking device 10, the wheel assembly 100 and the brake part 300 are connected through a brake clutch mechanism 350, and the brake clutch mechanism 350 is arranged between a brake groove inner diameter surface arranged on a traction disc (see a detailed description of the wheel assembly 100 later) of the wheel assembly 100 and a circumferential surface of a brake head of the brake part 300; by the engagement of the brake heads in the brake section 300 with the brake clutch mechanism 350, tension may or may not be applied to the inner diameter surface of the brake grooves of the traction disk of the wheel assembly 100, as well as different tension, to provide desired damping of the rotation of the wheel assembly 100.

In this embodiment, the locking device 10 further comprises the following components: a handle; the assembly is not shown in the drawings of the present application, but as an essential component during operation of the endoscope, the use of the assembly can be easily understood by those skilled in the art; the handle is actually the housing of the locking device 10, providing a locating basis for the other various components; the endoscope is characterized in that the endoscope is called a handle, and actually, the whole structure of the endoscope is used as the handle, and is generally designed into two mutually buckled cover bodies which can be disassembled according to the assembly and repair requirements; in this embodiment, the handle is a hollow circular housing made of plastic, and is used to provide an installation position for the wheel assembly 100 and the brake 300.

Turning now to the wheel assembly 100, the wheel assembly 100 includes: a first wheel assembly 110; a second wheel assembly 130.

The individual components are described in detail below.

The wheel assembly 100 includes a first wheel assembly 110; a second wheel assembly 130. The first wheel assembly 110 includes a first wheel 111, a first shaft 113, a first traction disk 115; the second rotating wheel assembly 130 includes a second rotating wheel 131, a second rotating shaft 133, and a second traction disk 135.

The first rotating wheel 111 is connected to the first end of the first rotating shaft 113, and is used as an operation handle arranged on the first rotating shaft 113, and in this embodiment, the first rotating wheel 111 is fixedly and detachably connected to the first end of the first rotating shaft 113; the first traction disk 115 is fixedly disposed at the other end of the first rotating shaft 113, i.e., the second end (right side of fig. 1) of the first rotating shaft 113; the second rotating wheel 131 is connected to the first end of the second rotating shaft 133, and the second rotating shaft 133 and the first rotating shaft 113 are coaxial, in this embodiment, as a most possible arrangement, the second rotating shaft 133 is sleeved on the outer peripheral surface of the first rotating shaft 113 to achieve the above-mentioned coaxial arrangement; the second traction disk 135 is fixedly disposed at a second end position of the second rotating shaft 133. As can be seen, the second traction disk 135 is disposed further to the first end (to the right in fig. 1) than the first traction disk 115. In addition, the first rotating wheel 111 is located at a position closer to the first end of the second rotating wheel 131, a boss protruding toward the second end direction is arranged on the first rotating wheel 111, and a corresponding groove is arranged on the second rotating wheel 131, so that the boss is embedded in the groove, and the installation size of the first rotating wheel 111 and the second rotating wheel 131 in the axial direction is shortened. Of course, the coaxial arrangement of the first shaft 113 and the second shaft 133 may also take other different forms, for example, an arrangement in which the two ends are opposite to each other, and if such an arrangement is adopted, the layout of the whole locking device is obviously different from the present embodiment, but the principle thereof is not substantially different.

After the structure and connection relation between the rotating shafts and the rotating wheels are described, the structure of the traction disc is described next, and the second traction disc 135 and the first traction disc 115 have the same structure, so the description of the structure of the second traction disc 135 is referred to the first traction disc 115, and is not repeated here.

Referring to fig. 6, fig. 6 is a schematic structural view of the first traction disk 115 in the locking device 10. Also shown in this figure is a first spindle 113 connected to the first traction disk 115. The specific structure of the first traction disk 115 is described in detail below in conjunction with fig. 6, and reference is also made to fig. 1.

The first traction disk 115 is disposed at the second end of the first rotating shaft 113; the first traction disk 115 has a position for fixing the first traction wire 1153, and by rotating the first traction disk 115, the extending distance of the first traction wire 1153 can be adjusted, and the first traction wire 1153 can draw the lens of the endoscope, so that the endoscope is at a proper angle in the dimension controlled by the first traction wire 1153.

As shown in fig. 6, the first traction disk 115 includes: a first traction disk recess 1151; a first pull wire 1153; a first pulling eye 1155; a first traction disk central bore 1157; a first braking recess 1159; first detent groove inner diameter 11591.

The first traction disc 115 is of a hollow disc structure, the first traction disc groove 1151 is located on the outer peripheral surface of the first traction disc 115, the first traction wire 1153 enters the first traction disc 115 through the first traction disc groove 1151, a symmetrical bidirectional first traction hole 1155 is formed in the peripheral surface of the first traction disc 115, the symmetrical first traction hole 1155 is used for receiving and releasing the first traction wire 1153, the first traction disc center position of the first traction disc 115 is provided with the first traction disc center hole 1157, the first traction disc 115 is fixedly embedded with the first rotating shaft 113, the first traction disc 115 is installed at the second end of the first rotating shaft 113 through the structure, the first braking groove 1159 is arranged on the end surface of the first traction disc 115, the inner diameter surface 11591 of the first braking groove 1159 is used for being attached to the outer diameter surface of a part of the tensioning piece of the assembly of the braking clutch mechanism 350, and the first braking groove inner diameter surface 11591 or the different tensioning forces are applied, so that the first rotating shafts 113 are applied in accordance with the desired rotation force; one end of a first traction wire 1153 is fixed on the first traction disc 115 and can be immersed in the first traction disc groove 1151, and the retraction and the extension of the first traction wire 1153 can be adjusted by rotating the first traction disc 115, so that the observation angle of the endoscope in a first dimension is adjusted; specifically, the rotation of the first traction disk 115 can control the winding and unwinding of the first traction wire 1153 in the first dimension, so as to adjust the extending distance thereof; as a possible arrangement, in this embodiment, the first traction wire 1153 is composed of two traction wires, the observation angle of the first dimension is in the up-down direction, and the two traction wires of the first traction wire 1153 individually control the observation angle of the endoscope in the up-down direction; in the present embodiment, the composition and control dimensions of the first traction wire 1153 are only one illustration, and other possible compositions and control manners for the first traction wire 1153 are not excluded.

Like the first traction disk 115, the second traction disk 135 has a similar structure, except that it is disposed at a second end position of the second rotating shaft 133; in this embodiment, the second braking grooves 1359 are provided on the end surface of the second traction disc 135, and as a specific embodiment, the first braking grooves 1159 and the second braking grooves 1359 are respectively provided on opposite end surfaces (on the right side in fig. 1) of the first traction disc 115 and the second traction disc 135; the brake clutch mechanism 350 is capable of simultaneously applying a tensioning force to the inner diameter surface of the second brake groove 1359 when applying a tensioning force to the inner diameter surface of the first brake groove 1159, thereby providing a desired damping of the rotation of the second shaft 133. The second traction disc 135 is used for fixing a second traction wire, and the second traction wire is similar to the first traction wire 1153 in composition, and the retraction of the second traction wire can be adjusted by rotating the second traction disc 135, so as to adjust the observation angle of the endoscope in a second dimension, for example, the observation angle of the endoscope in the left-right direction; specifically, the rotation of the second traction disk 135 can control the winding and unwinding of the second traction wire, so as to adjust the extending distance thereof, and the second dimension is in a different direction dimension from the first dimension.

In this embodiment, the first traction wire and the second traction wire are both buried in the catheter of the endoscope, two ends of each traction wire are respectively positioned at the bending end and the traction disk end of the catheter of the endoscope, one end of each traction wire is connected with the corresponding traction disk, the other end of each traction wire is fixed in the catheter, and generally, after one end of one traction wire is pulled by the corresponding traction disk, when the traction disk rotates, the rotation of the bendable part at the far end of the catheter is driven by the traction wire due to the flexibility of the catheter, so that the endoscope lens is driven to rotate in a certain dimension (first or second), so that the endoscope lens can deflect towards a certain angle, and the observation view angle is changed.

With the foregoing description of the wheel assembly 100, the brake 300 is described next.

The braking part 300 includes: a first brake head 310; a brake handle 330; the clutch mechanism 350 is braked. Because the three are closely related, the introduction process is crossed.

The first brake head 310 of the brake part 300 is sleeved on the outer circumferential surface of the first rotating shaft 113 and can rotate around the first rotating shaft 113; the brake handle 330 is fixedly connected to the outer circumferential surface of the first brake head 310, the brake handle 330 extends along the radial direction of the first rotating shaft 113, and the rotation angle of the first brake head 310 on the first rotating shaft 113 can be controlled through the brake handle 330; the brake clutch mechanism 350 is disposed between the first brake head 310 and a first brake recess 1159 in the wheel assembly 100; in this embodiment, as a specific implementation manner, the brake clutch mechanism 350 is disposed opposite to the first brake groove 1159 and the second brake groove 1359.

The first brake head 310 includes: the pressing boss 311; pressing the boss portion 3111; extruding the boss two 3113; brake head center hole 313.

The brake clutch mechanism 350 includes: a brake clutch mechanism body 351; tension sheet 353; tension sheet one portion 3531; tensioning tab two portion 3533; a brake clutch mechanism center hole 355; a positioning hole 357; arcuate through holes 359.

Fig. 4 is a schematic structural view of the brake clutch mechanism 350; fig. 5 is a schematic structural view of the first brake head 310 and the brake handle 330 in the locking device 10; due to the close fit of the components, there is a crossover in the introduction process; the structure of each component in the brake portion 300 will be described in detail below with reference to fig. 4 and 5, and reference may also be made to fig. 1 and 3.

As shown in fig. 5, the first brake head 310 is an annular dial (illustrated in the lower part of fig. 5), a brake head center hole 313 is provided at the center of the annular first brake head 310, the first brake head 310 is provided on the outer circumferential surface of the first rotating shaft 113 through the brake head center hole 313, and the first brake head 310 can be rotated to different angles on the first rotating shaft 113; in this embodiment, specifically, the first brake head 310 is sleeved on the first rotating shaft 113; the outer circumferential surface of the first brake head 310 is provided with an extrusion boss 311, the extrusion boss 311 is used for cooperating with a tensioning piece 353 on the brake clutch mechanism 350, the first brake head 310 rotates on the first rotating shaft 113 to different angles, so that the extrusion boss 311 is located at different angular positions on the circumference, and the extrusion boss 311 and the tensioning piece 353 in the brake clutch mechanism 350 are located at positions of attaching or detaching and at different attaching degrees, thereby realizing radial extrusion of the tensioning piece 353 and obtaining different extruding degrees.

In this embodiment, as a specific embodiment, the outer circumferential surface of the first brake head 310 is provided with a plum blossom-shaped extrusion boss 311, and the extrusion boss 311 is composed of two symmetrically arranged extrusion boss first portions 3111 and extrusion boss second portions 3113; wherein, the extrusion boss portion 3111 is disposed between the first brake groove inner diameter surface 11591 and the outer peripheral surface of the tension plate portion 3531; the second extrusion boss 3113 is disposed between the second braking groove inner diameter surface 13591 and the second tension disc portion 3533 being an outer circumferential surface; the brake handle 330 is fixedly arranged on one side of the outer peripheral surface of the first brake head 310 (above in fig. 5), and the brake handle 330 is provided with a connecting rod which is set to be significantly longer than the radius length of the first rotating wheel 111, and the connecting rod extends out along the radial direction of the first rotating shaft 113 and provides an operation surface convenient for pulling; by stirring the brake handle 330, the first brake head 310 is driven to rotate on the first rotating shaft 113 to different angles, so that the first extrusion boss part 3111 and the second extrusion boss part 3113 are synchronously transformed to the angular position at the circumference, and further, the adjustment of the fitting degree between the first extrusion boss part 3111 and the first tensioning piece part 3531, and the adjustment of the fitting degree between the second extrusion boss part 3113 and the second tensioning piece part 3533 are realized, thereby realizing radial extrusion of the first tensioning piece part 3531 and the second tensioning piece part 3533.

The brake clutch mechanism body 351 is a spacer fixed on the housing of the locking device 10, and the brake clutch mechanism body 351 is disposed opposite to the end face of the first brake groove 1159 on the first traction disc 115; at least one spring plate of a cantilever structure extending from the end surface of the brake clutch mechanism body 351 is arranged on the end surface of the brake clutch mechanism body 351 opposite to the first traction disk 115 as a tensioning plate 353, and the tensioning plate 353 extends into the first brake groove 1159, so that the outer circumferential surface of the tensioning plate 353 is close to the inner diameter surface 11591 of the first brake groove; the tensioning piece 353 is provided at a plurality of positions on the end surface of the brake clutch mechanism body 351, and is provided around the circumferential surface of the first brake head 310 in correspondence with the first brake head 310; the plurality of tension plates 353 may be uniformly arranged on the circumference or unevenly arranged. By radially pressing the tension plate 353, the tension plate 353 can be radially expanded, so that the outer diameter surface of the tension plate 353 is attached to the first brake groove inner diameter surface 11591, the application of the tension force to the first brake groove inner diameter surface 11591 is realized, and the tension plate 353 has different inner diameter dimensions along the circumferential direction, so that when the pressing boss 311 is attached to the tension plate 353, different pressing degrees can be obtained at different attaching positions; by varying the degree of compression, the degree of tightness of the abutment of the tension plate 353 with the first detent recess inner diameter 11591 can be adjusted to achieve the different tensioning forces applied to the first detent recess inner diameter 11591.

The brake clutch mechanism body 351 is sleeved on the first rotating shaft 113, a set gap is reserved between the brake clutch mechanism body 351 and the first rotating shaft 113, an arc-shaped through hole 359 extending in a circumferential direction for setting radian is further formed in the outer circumferential surface of the brake clutch mechanism body 351, the brake handle 330 of the brake part 300 penetrates through the arc-shaped through hole 359 of the brake clutch mechanism 350 and extends out in a radial direction, the arc-shaped through hole 359 provides space for swinging of the brake handle 330 and limits a moving range, and swinging of the brake handle 330 drives the first brake head 310 to rotate, so that the first brake head 310 rotates on the first rotating shaft 113 to different angles. Referring to the illustrations in fig. 3 and 4, a brake clutch mechanism center hole 355 is provided at the center of the brake clutch mechanism body 351, and the brake clutch mechanism body 351 is disposed on the outer circumferential surface of the first brake head 310 and is sleeved on the first rotary shaft 113 through the brake clutch mechanism center hole 355.

In this embodiment, as a specific embodiment, the brake clutch mechanism body 351 is disposed at a gap between the first traction disk 115 and the second traction disk 135 and is disposed opposite to the end face of the first brake groove 1159 and the end face of the second brake groove 1359; the braking clutch mechanism body 351 is fixed in the shell of the locking device 10 through a positioning hole 357 on the braking clutch mechanism body 351; the whole brake clutch mechanism body 351 is of a circular arc triangle structure, and the structure is convenient for the stability of the whole brake clutch mechanism body 351; an arc-shaped tensioning piece 353 is arranged on the end face of the brake clutch mechanism body 351 (namely, the isolating piece), the arc-shaped tensioning piece 353 is of a cantilever structure, one end of the root of the arc-shaped tensioning piece 353 is fixedly connected with the brake clutch mechanism body 351, the other end of the root of the arc-shaped tensioning piece 353 extends in a suspending manner, and the radial thickness of the tensioning piece 353 is gradually changed along with the arc radian of the tensioning piece 353; in this embodiment, the tension sheet 353 is made of an elastic material, which may be a soft rubber or a rubber block; as shown in fig. 4, the tensioning piece 353 is composed of a tensioning piece first portion 3531 and a tensioning piece second portion 3533, the tensioning piece first portion 3531 and the tensioning piece second portion 3533 are symmetrically disposed on two sides of the end face of the brake clutch mechanism body 351, the tensioning piece first portion 3531 is composed of a group of arc tensioning pieces, in this embodiment, the tensioning piece first portion 3531 is composed of 3 arc tensioning pieces together, the 3 tensioning pieces are disposed at annular intervals and surround the edge of the brake clutch mechanism center hole 355, and the tensioning piece second portion 3533 and the tensioning piece first portion 3531 have the same structure; by radial expansion of the tension plate portion 3531, the outer diameter surface of the tension plate portion 3531 is made to fit the inner diameter surface 113591 of the first detent; the radial expansion of the second tensioning piece part 3533 enables the outer diameter surface of the second tensioning piece part 3533 to be attached to the inner diameter surface 13591 of the second braking groove, and the degree of tightness of the abutting attachment can be adjusted through different degrees of extrusion, so that different tensioning forces can be applied to the inner diameter surface 11591 of the first braking groove and the inner diameter surface 13591 of the second braking groove; thereby providing desired damping for the rotation of the first and second shafts 113, 133.

When the endoscope works, the brake handle 330 is swung to drive the extrusion boss 311 on the first brake head 310 to synchronously rotate, so that the extrusion boss 311 is positioned at different angle positions on the circumference, and then the extrusion boss 311 and the tensioning sheet 353 are positioned at attaching or detaching positions and at different attaching degrees, thereby realizing radial extrusion of the tensioning sheet 353 and obtaining different extruding degrees; by radially extruding the tensioning sheet 353, the tensioning sheet 353 can be radially expanded, so that the outer diameter surface of the tensioning sheet 353 is attached to the annular first braking groove inner diameter surface 11591 and the annular second braking groove inner diameter surface 13591, the tensioning force is applied to the first braking groove inner diameter surface 11591 and the second braking groove inner diameter surface 13591, the tightness degree of the abutting of the tensioning sheet 353 and the first braking groove inner diameter surface 11591 and the second braking groove inner diameter surface 13591 can be adjusted through different extrusion degrees, and the different tensioning force is applied to the first braking groove inner diameter surface 11591 and the second braking groove inner diameter surface 13591, so that the first rotating shaft 113 and the second rotating shaft 133 can be rotated to provide expected damping; in general, the locking device 10 may have an unlocked state and a locked state and may provide varying degrees of damping in the intermediate positions thereof.

The operation of the locking device 10 will be described in detail with particular reference to fig. 3;

fig. 3 shows a schematic view of the locking device 10 of fig. 1 in an unlocked state. The operation of the locking device 10 will be briefly described with reference to fig. 1 to 3, with an emphasis on the operation of switching between the locked and unlocked states. For ease of viewing, the locking device 10 of fig. 3 does not show the first traction disk 115 blocking the view.

When the endoscope locking device 10 needs to be locked, the brake handle 330 rotates anticlockwise around the first rotation shaft 113 by a certain angle (from the position B to the position a as shown in fig. 3), the brake handle 330 drives the extrusion boss 311 to synchronously rotate around the first rotation shaft 113 by a certain angle, in the rotation process of the extrusion boss 311, the extrusion boss 311 and the tensioning piece 353 are converted into a fitting state from a separation state, and as the rotation angle increases, the fitting of the extrusion boss 311 and the tensioning piece 353 is tighter, and the extrusion degree of the extrusion boss 311 to the tensioning piece 353 is greater; since the tension sheet 353 has a cantilever beam structure and different inner diameter sizes along the circumferential direction, during the process of extruding the tension sheet 353 by the extrusion boss 311, the tension sheet 353 starts to expand along the radial direction of the first rotating shaft 113, so that the outer diameter surface of the tension sheet 353 is abutted against the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359, and further, the tension force is applied to the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359, and when the extrusion boss 311 is positioned at a different abutted position with the tension sheet 353, the tension force with different magnitudes can be applied. Under the action of the tension force, the rotation of the first traction disk 115 and the second traction disk 135 is blocked until the first traction disk 115 and the second traction disk 135 cannot rotate, so that the first traction disk 115 and the second traction disk 135 are locked at the rotating positions, the locking device 10 enters a locking state, and the traction length of the traction wire related to the traction disk in the up-down direction and the left-right direction in the endoscope catheter is fixed, namely, the angle locking of the endoscope lens is realized. Referring to fig. 3 for illustration, it can be seen that the pressing boss 311 comes into contact with the tension plate 353 when in the position of fig. 3, since the tension plate 353 does not expand and deform in the radial direction to a lesser extent, the first traction disk 115 is not shown in this figure for ease of viewing, and the abutting and attaching process of the outer diameter surface of the tension plate 353 to the inner diameter surface of the first brake groove 1159 can be easily understood according to the principle description.

When the endoscope locking device 10 needs to be unlocked, the brake handle 330 rotates clockwise around the first rotating shaft 113 by a certain angle (from the position a to the position B as shown in fig. 3), the brake handle 330 drives the extrusion boss 311 to synchronously rotate around the first rotating shaft 113 by a certain angle, and in the rotation process of the extrusion boss 311, as the rotation angle increases, the extrusion degree of the extrusion boss 311 on the tensioning piece 353 is reduced, the expansion of the tensioning piece 353 along the radial direction of the first rotating shaft 113 is reduced, and the fitting degree of the outer diameter surface of the tensioning piece 353 with the inner diameter surface of the first brake groove 1159 and the inner diameter surface of the second brake groove 1359 is reduced; so that the tension applied to the first and second rotating shafts 113 and 133 gradually decreases until it disappears; (the outer diameter surface of the tensioning piece 353 and the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359 are in contact with each other, and the tensioning force is removed when the inner diameter surfaces of the tensioning pieces are shifted from the contact state to the separation state), the locking device 10 is released from the locking state, and is brought into the unlocking state, and the first traction disc 115 and the second traction disc 135 can flexibly rotate along with the operation of the first rotating wheel 111 and the second rotating wheel 131 by an operator; the traction wire related to the traction disc can be flexibly wound and unwound under the traction of the corresponding rotating wheel, so that the angle of the endoscope lens can be flexibly adjusted.

In the middle of the locking and unlocking positions, the brake handle 330 can be positioned in the middle of A, B by operating the brake handle, so that the locking device 10 is in different damping states, and different tightness of the adjustment rotating wheel can be obtained according to the requirement of rotating the rotating wheel; the locking device 10 can set the endoscope in a proper state according to the requirement when the endoscope is adjusted, can freely adjust the lens angle of the endoscope through the rotating wheel when the endoscope is unlocked, and can enable the endoscope to be in a fixed state when the endoscope is locked, so that the lens angle cannot be changed; if the damping state is in the middle of the two, the hand feeling of the rotating wheel is provided for operators, so that the operators can conveniently operate the rotating wheel.

In the following, the principle of the above embodiment is briefly described, the combination of the brake handle 330 and the first brake head 310 forms a lever mechanism, and since the brake handle 330 is long and corresponds to the long arm end of the lever, the first brake head 310 can be easily moved, but on the contrary, the first brake head 310 is difficult to swing to drive the brake handle 330.

The first embodiment described above is a preferred embodiment, and it is obvious that other variations are possible in its basic principle. For example, the runner assembly 100 includes a first runner assembly 110, i.e., the locking device can only adjust the angle of the endoscope in one dimension. Of course, there are other possible variations. For example, the first runner 111 and the second runner 131 that have been mentioned above are in opposite positions, not at the same end as in the present embodiment.

In the above embodiment, it is further preferable that the locking device for endoscope adjustment further includes two sets of braking portions: the first braking part and the second braking part respectively provide damping for the first rotating shaft and the second rotating shaft, so that the independent control and adjustment of the observation angles of the endoscope in the first dimension and the second dimension are realized. The second dimension is in a different directional dimension than the first dimension.

The first braking part is provided with a first braking head which is sleeved on the first rotating shaft and can rotate around the first rotating shaft, and the second braking part is provided with a second braking head which is sleeved on the second rotating shaft and can rotate around the second rotating shaft; the first and second braking parts are constructed similarly to the braking parts in the first embodiment described above; the preferred embodiment enables independent adjustment of the viewing angle of one dimension by the endoscope while ensuring that the viewing angle of the other dimension is determined.

The second embodiment of the application also provides a locking device; the structure and operation thereof are described below with reference to fig. 1 to 6. In this embodiment, the elements having the same functions as those of the first embodiment described above are given the same designations as much as possible for easy understanding; however, the second embodiment has significant differences from the first embodiment despite the common innovation, and therefore, the description of the present embodiment is based on the nomenclature provided by the present embodiment, and does not forcibly correspond to the first embodiment.

The locking device 10' is generally used in a testing scenario, and the first traction disk 115 and the second traction disk 135 in the wheel assembly 100 are replaced with a first function disk 115' and a second function disk 135' for implementing various possible adjustment functions in connection with the procedure described in connection with the first embodiment. It should be understood that the structures of the first functional disk 115' and the second functional disk 135' may be structurally adjusted according to the function and the application of the locking device 10 '. The present embodiment is not particularly limited.

The locking device 10' comprises: a first rotating wheel 111, a first rotating shaft 113, and a braking part 300;

the first rotating wheel 111 is connected to a first end of the first rotating shaft 113; the first rotating shaft 113 is provided with a first functional disc 115' near the second end position; a first braking groove 1159 is provided at a coupling portion with the first rotary shaft 113 on the first functional disk 115';

the brake part 300 has a first brake head 310 which is sleeved on the first rotating shaft 113 and can rotate around the first rotating shaft 113, and a brake handle 330 which is connected with the first brake head 310 and radially extends out; the rotation angle of the first brake head 310 on the first rotary shaft 113 can be controlled through the brake handle 330;

A brake clutch mechanism 350 is disposed between the first brake head 310 and the first brake recess 1159; the first brake head 310 is rotated to various angles on the first shaft 113, and tension may be applied or not to the inner diameter surface of the first brake recess 1159 and various tension may be applied by the brake clutch mechanism 350, thereby providing desired damping of the rotation of the first shaft 113.

The locking device 10 provided by the second embodiment may also include other necessary structures, such as a detection device, a display device, etc. for cooperating with the locking device.

It should be understood that the locking device of this embodiment works in a similar manner to the first embodiment, and the description of this embodiment is omitted.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A locking device for endoscope adjustment, which is characterized by comprising a first rotating wheel, a first rotating shaft and a braking part;

the first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first traction disc and the first rotating shaft;

the brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending out radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle;

A brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove and tension force with different magnitudes can be applied through the brake clutch mechanism, so that expected damping is provided for the rotation of the first rotating shaft; rotation of the first traction disk is used to adjust the first traction wire, thereby adjusting the viewing angle of the endoscope in a first dimension.

2. The locking device for endoscope adjustment according to claim 1, wherein the brake clutch mechanism is a spacer fixed to a housing of the locking device, the spacer being disposed opposite an end face of the first brake groove on the first traction disk; the utility model discloses a tensioning device for a bicycle, including a spacer, a first traction disc, a tensioning piece, a spring plate, a tensioning piece, a spring plate and a spring plate, wherein the spacer is provided with at least one cantilever structure that stretches out from the spacer end face on the end face opposite to the first traction disc as the tensioning piece, the tensioning piece stretches into the first braking groove, the outer peripheral surface of the tensioning piece is made to be close to the inner diameter face of the first braking groove, the tensioning piece can be made to radially expand through radial extrusion of the tensioning piece, thereby the outer diameter face of the tensioning piece is made to be attached to the inner diameter face of the first braking groove, tensioning force is applied to the inner diameter face of the first braking groove, the degree of tightness of the attaching of the tensioning piece to the inner diameter face of the first braking groove can be adjusted through different extrusion degrees, and different tensioning forces are applied to the inner diameter face of the first braking groove.

3. The locking device for endoscope adjustment according to claim 2, wherein an extrusion boss that mates with the tension sheet is provided on an outer peripheral surface of the first brake head, and the first brake head is rotated to different angles on the first rotation shaft, so that the extrusion boss can be positioned at different angle positions on the circumference, so that the extrusion boss is positioned at a position of attaching or detaching from the tension sheet, and at different attaching degrees, thereby realizing the radial extrusion of the tension sheet, and obtaining the different extruding degrees.

4. A locking device for endoscope adjustment according to claim 3 and wherein said tensioning sheet has different inner diameter dimensions along the circumferential direction so that different degrees of compression can be obtained at different positions of engagement when said compression boss is engaged with the tensioning sheet.

5. A locking device for endoscope adjustment according to claim 3, wherein the tension sheet is provided in a plurality of places and is provided around the first brake head circumferential surface in correspondence with the first brake head; the plurality of tension sheets are uniformly arranged on the circumference or unevenly arranged.

6. The locking device for endoscope adjustment according to claim 2, wherein the spacer is sleeved on the first rotating shaft with a set gap therebetween, and an arc-shaped through hole extending in a circumferential direction for a set arc is further provided on an outer circumferential surface of the spacer, a brake handle of the brake part passes through the arc-shaped through hole of the brake clutch mechanism and protrudes in a radial direction, the arc-shaped through hole provides a space for swinging of the brake handle and defines a movable range, and swinging of the brake handle drives the first brake head to rotate, so that the first brake head rotates to different angles on the first rotating shaft.

7. The locking device for endoscope adjustment of claim 2, further comprising: the second rotating wheel and the second rotating shaft;

the second rotating wheel is connected to the first end of the second rotating shaft, the first rotating shaft and the second rotating shaft are coaxial, and the second rotating shaft is sleeved on the peripheral surface of the first rotating shaft; a second traction disc is arranged at the position, close to the second end, of the second rotating shaft; a second braking groove is formed in the joint part of the second traction disc and the second rotating shaft; when the braking clutch mechanism applies tensioning force to the inner diameter surface of the first braking groove, the tensioning force can be applied to the inner diameter surface of the second braking groove, so that expected damping is provided for the rotation of the second rotating shaft; rotation of the second traction disk is used to adjust a second traction wire, thereby adjusting an observation angle of the endoscope in a second dimension, the second dimension being in a different directional dimension than the first dimension.

8. The locking device for endoscope adjustment of claim 7, wherein the first and second detent recesses are provided on opposite end surfaces of the first and second traction discs, respectively.

9. A locking device, comprising: the device comprises a first rotating wheel, a first rotating shaft and a braking part;

the first rotating wheel is connected to the first end of the first rotating shaft; a first functional disc is arranged at the position, close to the second end, of the first rotating shaft; a first braking groove is formed in the joint part of the first functional disc and the first rotating shaft;

the brake part is provided with a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected with the first brake head and extending out radially; the rotation angle of the first brake head on the first rotating shaft can be controlled through the brake handle;

a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head rotates on the first rotating shaft to different angles, and tension force can be applied or not applied to the inner diameter surface of the first brake groove through the brake clutch mechanism, and different tension forces are applied, so that expected damping is provided for the rotation of the first rotating shaft.

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