CN221356827U - Colposcope - Google Patents

Abstract

The utility model relates to a colposcope, comprising: the device comprises a vaginal speculum and an inspection mirror body, wherein the inspection mirror body comprises a shell, a camera and a swinging mechanism, the shell is detachably connected with the vaginal speculum, the swinging mechanism and the camera are both installed inside the shell, and the swinging mechanism is connected with the camera and is used for driving the camera to swing. According to the utility model, the swing mechanism is arranged to be connected with the camera, so that the shooting angle of the camera can be adjusted according to the requirement of a user, and the visual field blind area during inspection is greatly reduced; because the vaginal speculum is detachably connected with the inspection mirror body, the vaginal speculum can be replaced after each use, and the disposable vaginal speculum is more sanitary and healthy during inspection, so that secondary pollution is avoided.

Description

Colposcope

Technical Field

The application relates to the field of medical instruments, in particular to a colposcope.

Background

At present, the clinical gynecological examination is commonly used to a colposcope, and is mainly used for gynecological routine examination and operation treatment, the colposcope can be used for expanding a colposcope, and then auxiliary lighting equipment and camera equipment can be used for diagnosing the colposcope, but a camera on the colposcope in the prior art is fixed and cannot be adjusted, and a visual field blind area exists during examination.

Disclosure of utility model

The embodiment of the application provides a colposcope, which aims to solve the problems that a camera on the colposcope is fixed and cannot be adjusted in the related art, and a visual field blind area exists during examination.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a colposcope, comprising: the device comprises a vaginal speculum and an inspection mirror body, wherein the inspection mirror body comprises a shell, a camera and a swinging mechanism, the shell is detachably connected with the vaginal speculum, the swinging mechanism and the camera are both installed inside the shell, and the swinging mechanism is connected with the camera and is used for driving the camera to swing.

In some embodiments, the swing mechanism includes: the camera comprises an up-down swinging unit and a left-right swinging unit, wherein the up-down swinging unit is connected with the camera and is used for driving the camera to swing up and down; the left-right swinging unit is connected with the camera and used for driving the camera to swing left and right.

In some embodiments, the camera is mounted on a left-right swinging unit, and the left-right swinging unit is movably connected with the up-down swinging unit through a connecting unit.

In some embodiments, the up-down swing unit includes: the first motor is connected with the inner wall of the shell; the support is movably connected with the inner wall of the shell, and a left-right swinging unit is arranged on the support; one end of the first eccentric wheel is connected with the output shaft of the first motor, and the other end of the first eccentric wheel is connected with the support.

In some embodiments, the inner wall of the shell is fixedly connected with a bearing seat through a fixing piece, and the bearing seat is rotationally connected with the bearing seat.

In some embodiments, the left and right swing unit includes: the swinging block is arranged on the up-down swinging unit and is movably connected with the up-down swinging unit through a connecting unit, and a camera is arranged on the swinging block; one end of the second eccentric wheel is connected with the output shaft of the second motor, and the other end of the second eccentric wheel is connected with the swinging block.

In some embodiments, the swing block is provided with a limiting groove, and the camera is clamped in the limiting groove.

In some embodiments, the connection unit includes: the connecting bearing, the connecting cylinder and the shoulder screw are arranged on the left-right swinging unit; the connecting cylinder is arranged on the up-down swinging unit; one end of the shaft shoulder screw is fixed with the inner ring of the connecting bearing, and the other end is fixed with the connecting cylinder.

In some embodiments, the vaginal speculum comprises: the upper support plate and the lower support plate are fixedly connected with a connecting piece at one side of the upper support plate, and the connecting piece is detachably connected with the shell; the lower support plate is movably connected with the upper support plate through an adjusting unit, and an expansion space is formed between the lower support plate and the upper support plate; wherein, the adjusting unit is used for adjusting the size of the expansion space.

In some embodiments, the adjustment unit comprises: the adjusting piece is rotationally connected with the connecting piece; the limiting part comprises a supporting rod and a tooth-shaped structure, the supporting rod is arranged at the top end of the connecting part, the tooth-shaped structure is fixed on one side of the supporting rod, the tooth-shaped structure is movably connected with the adjusting part, and when the top end of the adjusting part moves from one side of the tooth-shaped structure away from the supporting rod to one side close to the supporting rod, the expansion space is gradually increased.

The technical scheme provided by the application has the beneficial effects that:

The embodiment of the application provides a colposcope, which is connected with a camera through a swinging mechanism, so that the shooting angle of the camera can be adjusted according to the requirement of a user, and the blind area of a visual field during examination is greatly reduced; because the vaginal speculum is detachably connected with the inspection mirror body, the vaginal speculum can be replaced after each use, and the disposable vaginal speculum is more sanitary and healthy during inspection, so that secondary pollution is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present application;

FIG. 2 is a schematic view of an embodiment of an inspection scope body (first view angle);

FIG. 3 is a schematic view of an embodiment of an inspection scope body (second view);

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a top view of a swing mechanism according to an embodiment of the present application;

FIG. 6 is a cross-sectional view taken at B-B in FIG. 5;

FIG. 7 is an exploded view of a swing mechanism according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a swing mechanism according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a swing mechanism according to an embodiment of the present application.

In the figure: 1. a vaginal dilator; 10. an upper support plate; 11. a connecting piece; 12. a lower support plate; 13. an adjusting member; 14. a limiting piece; 140. a support rod; 141. a tooth-shaped structure;

2. An inspection mirror body; 20. a housing; 21. a camera; 22. a swinging mechanism; 220. an up-and-down swinging unit; 2200. a first motor; 2201. a first eccentric; 2202. a support; 2203. a bearing seat; 2204. a fixing member; 221. a left-right swinging unit; 2210. a second motor; 2211. a second eccentric; 2212. a swinging block; 2213. a motor pressing plate; 2214. a limit groove; 222. a connection unit; 2220. shoulder screws; 2221. connecting a bearing; 2222. a connecting cylinder; 23. an electronic module; 24. checking the lamp;

3. control buttons.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 to 9, an embodiment of the present application provides a colposcope, which can solve the problem that in the related art, a camera on the colposcope is fixed and cannot be adjusted, and a field of vision blind area exists during inspection.

An embodiment of the present application provides a colposcope, comprising: the vaginal speculum comprises a vaginal speculum 1 and an inspection mirror body 2, wherein the inspection mirror body 2 comprises a shell 20, a camera 21 and a swinging mechanism 22, the shell 20 is detachably connected with the vaginal speculum 1, the swinging mechanism 22 and the camera 21 are both arranged inside the shell 20, and the swinging mechanism 22 is connected with the camera 21 and is used for driving the camera 21 to swing.

According to the application, the swing mechanism 22 is arranged to be connected with the camera 21, so that the shooting angle of the camera 21 can be adjusted according to the requirement of a user, and the blind area of the visual field during inspection is greatly reduced.

Because the vaginal speculum 1 is detachably connected with the inspection scope body 2, the vaginal speculum 1 can be replaced after each use, and the disposable vaginal speculum 1 is more sanitary and healthy during inspection, and avoids secondary pollution.

The swing mechanism 22 can adjust the shooting angle of the camera 21, so that the visual field is wider. Wherein, the inspection mirror body 2 also comprises an electronic module 23, and the electronic module 23 comprises a battery and a circuit board, and provides circuit control and power supply for the device; a control button 3 is also provided on the surface of the housing 20, the control button 3 being electrically connected to the swing mechanism 22 via an electronic module 23. The appearance of the shell 20 adopts streamline design, so that the holding feeling is more comfortable and more beautiful; the shell 20 includes the arc cover, and the arc cover sets up in shell 20 is close to the vaginal speculum 1 one side, and the arc cover is made for transparent material, and camera 21 is located the arc cover inside, conveniently shoots.

Further, the swing mechanism 22 includes: an up-and-down swinging unit 220 and a left-and-right swinging unit 221, wherein the up-and-down swinging unit 220 is connected with the camera 21 and is used for driving the camera 21 to swing up and down; the left-right swinging unit 221 is connected to the camera 21, and is used to drive the camera 21 to swing left and right.

The control buttons 3 include a left swing button, a right swing button, an up swing button, and a down swing button. When the left swing button and the right swing button are pressed, the camera 21 is controlled to swing left and right by the left and right swing unit 221; when the up-swing button and the down-swing button are pressed, the camera 21 is controlled to swing up and down by the up-and-down swing unit 220.

On the basis of the above embodiment, in the present embodiment, the camera 21 is mounted on the left-right swinging unit 221, and the left-right swinging unit 221 is movably connected with the up-down swinging unit 220 through the connection unit 222.

In the present embodiment, when the horizontal swinging unit 221 is operated, the camera 21 is controlled to swing horizontally, and when the vertical swinging unit 220 is operated, the horizontal swinging unit 221 is driven to swing vertically, so as to control the camera 21 to swing vertically.

Specifically, the up-and-down swing unit 220 includes: first motor 2200, support 2202 and first eccentric 2201, first motor 2200 being connected to the inner wall of housing 20; the support 2202 is movably connected with the inner wall of the shell 20, and the support 2202 is provided with a left-right swinging unit 221; first eccentric 2201 has one end connected to the output shaft of first motor 2200 and the other end connected to support 2202.

The two sides of the support 2202 are convexly provided with rotating shafts, the inner wall of the shell 20 is fixedly connected with a bearing seat 2203 through a fixing piece 2204, the rotating shafts on the support 2202 are rotationally connected with the bearing seat 2203, and the fixing piece 2204 can be a hexagon socket head cap screw. A bearing seat 2203 is arranged on two sides of the inner wall of the shell 20, the bearing seat 2203 is fixed with the shell 20 through a hexagon socket head cap screw, and a rotating shaft penetrates through the bearing seat 2203 and is in rotary connection with the bearing seat 2203; fixing the first motor 2200 on the inner wall of the housing 20, the first motor 2200 being connected with the upper swing button and the lower swing button through the electronic module 23; meanwhile, a movable groove is formed in the support 2202, and one end of the first eccentric wheel 2201 penetrates through the movable groove. Therefore, the up-and-down swing unit 220 operates on the following principle:

when the up-swing button is pressed, the first motor 2200 drives the first eccentric wheel 2201 to rotate, and then the first eccentric wheel 2201 drives the support 2202 to swing upwards, so that the left-right swinging unit 221 and the camera 21 are driven to swing upwards; when the lower swing button is pressed, the first motor 2200 drives the first eccentric wheel 2201 to rotate, and then the first eccentric wheel 2201 drives the support 2202 to swing downwards, so that the left-right swing unit 221 and the camera 21 are driven to swing downwards.

Specifically, the left-right swing unit 221 includes: the second motor 2210, the swinging block 2212 and the second eccentric wheel 2211, the swinging block 2212 is arranged on the up-and-down swinging unit 220 and is movably connected with the up-and-down swinging unit 220 through a connecting unit 222, and the camera 21 is arranged on the swinging block 2212; one end of the second eccentric wheel 2211 is connected with an output shaft of the second motor 2210, and the other end is connected with the swing block 2212.

Wherein, the second motor 2210 is installed on the support 2202, and the motor pressing plate 2213 is installed on the support 2202, so that the motor pressing plate 2213 is located at the top of the second motor 2210, and screws are installed between the motor pressing plate 2213 and the support 2202, so that the motor pressing plate 2213 is matched with the support 2202 to lock the second motor 2210.

The swing-left unit 221 is connected to the swing-up unit 220 through a connection unit 222 so that the swing-left unit 221 can rotate with respect to the swing-up unit 220. The connection unit 222 includes a connection bearing 2221, a connection cylinder 2222, and a shoulder screw 2220, where the connection bearing 2221 is disposed on the left-right swing unit 221; the connection cylinder 2222 is provided on the up-down swing unit 220; one end of the shoulder screw 2220 is fixed with the inner ring of the connecting bearing 2221, and the other end is fixed with the connecting cylinder 2222.

The swing block 2212 is arranged at the top end of the support 2202, a mounting hole can be formed in the swing block 2212, the connecting bearing 2221 is fixed in the mounting hole, the connecting cylinder 2222 is fixed at the top end of the support 2202, one end of the shaft shoulder screw 2220 penetrates through the connecting bearing 2221 to be fixed with the inner ring, one end of the shaft shoulder screw 2220 penetrates through the connecting cylinder 2222 to be fixed with the connecting cylinder 2222, and when the second motor 2210 works, the inner ring and the outer ring of the connecting bearing 2221 rotate relatively to enable the swing block 2212 to rotate relative to the support 2202; a movable groove is also arranged on the swing block 2212, and one end of the second eccentric wheel 2211 penetrates through the movable groove on the swing block 2212. Therefore, the left-right swing unit 221 operates on the principle that:

When the left swing button is pressed, the second motor 2210 drives the second eccentric wheel 2211 to rotate, and then the second eccentric wheel 2211 drives the swing block 2212 to swing leftwards relative to the support 2202, so that the camera 21 is driven to swing leftwards; when the right swing button is pressed, the second motor 2210 drives the second eccentric 2211 to rotate, and then the second eccentric 2211 drives the support 2202 to swing rightwards relative to the support 2202.

The swing block 2212 is provided with the limit groove 2214, the camera 21 is clamped in the limit groove 2214, and in order to enable the camera 21 to be connected with the swing block 2212 more stably, the camera 21 is coated with high-temperature-resistant glue and then is adhered in the limit groove 2214, so that the assembly is more stable, and the camera 21 is not easy to fall off.

Note that the up-down swing unit 220 and the left-right swing unit 221 are installed: after the second eccentric wheel 2211 is connected with the second motor 2210, the second motor 2210 is installed on the support 2202, then the motor pressing plate 2213 is installed, the motor pressing plate 2213 and the second motor 2210 are locked through screws, then the swinging block 2212 is connected with the support 2202 through the connecting unit 222, and then the camera 21 is installed on the swinging block 2212; after the support 2202 is connected to the bearing mount 2203, the bearing mount 2203 mounts the up-and-down swing unit 220 and the left-and-right swing unit 221 on the housing 20 by means of hexagon socket head cap screws.

An inspection lamp 24 is also mounted on the surface of the arc-shaped cover to provide a light source for the photographing of the camera 21.

The swing of the camera 21 by the up-down swing unit 220 and the left-right swing unit 221 has several advantages as follows:

when the first eccentric wheel 2201 and the second eccentric wheel 2211 rotate, reciprocating swing motion can be realized, no mechanical dead point exists, the device is more stable to use by the application of a pure mechanism, the electrical failure rate is reduced, and the electronic cost and the energy are saved;

The swing angle can be adjusted, increased or reduced according to the user demand, and the swing angle of the mechanism is designed only for meeting the current user demand. In this embodiment, with the central axis of the arc-shaped cover as a reference, when the camera 21 is at the initial position, the center of the camera 21 coincides with the central axis of the arc-shaped cover; when the camera 21 swings up and down, the mechanism can realize that the up and down swinging angle of the center of the camera 21 relative to the central shaft of the arc-shaped cover is 4 degrees; when the camera 21 swings left and right, the mechanism can realize that the left and right swinging angle of the center of the camera 21 relative to the central shaft of the arc-shaped cover is 6 degrees;

the camera 21 swings left and right and swings up and down as independent motor control, namely the first motor 2200 controls the camera 21 to swing up and down, the second motor 2210 controls the camera 21 to swing left and right, the camera 21 does not interfere with movement when swinging left and right and swinging up and down, positioning of any point position can be achieved within the swinging angle range, and vision dead zones are avoided greatly;

The device has the advantages of small structure, light weight, strong practicability and good universality; easy to disassemble and maintain and low in processing cost.

On the basis of the above-described embodiment, in the present embodiment, the vaginal dilator 1 includes: the upper support plate 10 and the lower support plate 12, wherein one side of the upper support plate 10 is fixedly connected with a connecting piece 11, and the connecting piece 11 is detachably connected with the shell 20; the lower support plate 12 is movably connected with the upper support plate 10 through an adjusting unit, and an expansion space is formed between the lower support plate 12 and the upper support plate 10; wherein, the adjusting unit is used for adjusting the size of the expansion space.

The upper support plate 10 is connected with the outer shell 20 through a connecting piece 11:

In some possible embodiments, the connecting piece 11 is provided with a first thread groove, and the housing 20 is provided with a second thread groove, so that the connecting piece 11 is in threaded connection with the housing 20;

in other possible embodiments, the housing 20 is provided with a locking structure, the connecting member 11 is provided with a mating structure, and the connecting member 11 is connected to the housing 20 when the locking structure is locked with the mating structure.

The above embodiments are merely a plurality of possible implementations of the embodiment of the present application, and the embodiment of the present application is not limited thereto.

Specifically, the adjusting unit includes: the adjusting piece 13 and the limiting piece 14, the adjusting piece 13 is rotationally connected with the connecting piece 11; the limiting part 14 comprises a supporting rod 140 and a tooth-shaped structure 141, the supporting rod 140 is arranged at the top end of the connecting part 11, the tooth-shaped structure 141 is fixed on one side of the supporting rod 140, the tooth-shaped structure 141 is movably connected with the adjusting part 13, and when the top end of the adjusting part 13 moves from one side of the tooth-shaped structure 141 away from the supporting rod 140 to one side of the adjusting part close to the supporting rod 140, the expansion space is gradually increased.

Wherein, all offered the connecting hole on regulating part 13 and the connecting piece 11, when regulating part 13 and connecting piece 11 are connected, the connecting hole on regulating part 13 corresponds with the connecting hole on the connecting piece 11, wears to establish the connecting axle in the connecting hole to make regulating part 13 and connecting piece 11 rotate to be connected, cooperation locating part 14 can adjust the size in expansion space.

Tooth form structure 141 includes connecting rod and a plurality of connection tooth, and the connecting rod is fixed with branch 140, and the connection tooth is fixed in the connecting rod bottom, and every connection tooth is to keeping away from inspection glass body 2 one end slope, when regulating part 13 and the laminating of different connection teeth, the size of expansion space is different:

For example, five connection teeth are provided, and the five connection teeth are named as a connection tooth, a connection tooth No. two, a connection tooth No. three, a connection tooth No. four, and a connection tooth No. five from the side of the vaginal speculum 1 to the side of the inspection scope body 2, respectively. When the top end of the adjusting piece 13 is attached to the fifth connecting tooth, the adjusting piece is positioned between the fourth connecting tooth and the fifth connecting tooth, and the opening gear of the upper support plate 10 and the lower support plate 12 is five gears; when the top end of the adjusting piece 13 is attached to the fourth connecting tooth, the adjusting piece is located between the fourth connecting tooth and the third connecting tooth, the opening gear of the upper support plate 10 and the lower support plate 12 is four gears … …, and when the top end of the adjusting piece 13 is attached to the first connecting tooth, the opening gear of the upper support plate 10 and the lower support plate 12 is one gear. Wherein, the expansion space is the largest in first gear and the expansion space is the smallest in fifth gear.

When the device is used, firstly, the vaginal dilator 1 and the inspection mirror body 2 are assembled, after entering a human body channel, the toothed structure 141 is arranged on the vaginal dilator 1, the opening angles of the upper support plate 10 and the lower support plate 12 can be adjusted according to different gears, and the internal pressure is not retracted after the adjustment; the left and right and up and down 360-degree rotation of the camera 21 can be controlled through the control button 3, and dead angle free shooting is realized; when photographing, video recording and the like are completed, the vaginal dilator 1 is adjusted to an original entering state through the tooth-shaped structure 141 and is pulled out of the body.

In summary, the device has the advantages that:

The inspection lamp 24 is arranged on the outer surface of the arc-shaped cover, so that the shot image is clearer and more real;

Through an electric mode, the camera can be controlled to rotate by 21360 degrees, and the visual field is wider;

The control button 3 is arranged, so that the personal operation is more convenient;

The appearance of the inspection mirror body 2 adopts streamline design, so that the holding feeling is more comfortable and more beautiful.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A colposcope, comprising:

A vaginal dilator (1);

the inspection mirror comprises an inspection mirror body (2), wherein the inspection mirror body (2) comprises a shell (20), a camera (21) and a swinging mechanism (22), the shell (20) is detachably connected with the vaginal speculum (1), the swinging mechanism (22) and the camera (21) are both arranged in the shell (20), and the swinging mechanism (22) is connected with the camera (21) and is used for driving the camera (21) to swing;

The swing mechanism (22) includes:

The up-and-down swinging unit (220) is connected with the camera (21) and is used for driving the camera (21) to swing up and down;

And the left-right swinging unit (221) is connected with the camera (21) and is used for driving the camera (21) to swing left and right.

2. The colposcope as defined in claim 1, wherein:

The camera (21) is arranged on a left-right swinging unit (221), and the left-right swinging unit (221) is movably connected with the up-down swinging unit (220) through a connecting unit (222).

3. The colposcope according to claim 2, wherein the up-down swinging unit (220) comprises:

A first motor (2200), the first motor (2200) being connected to an inner wall of the housing (20);

The support (2202) is movably connected with the inner wall of the shell (20), and the support (2202) is provided with a left-right swinging unit (221);

and one end of the first eccentric wheel (2201) is connected with the output shaft of the first motor (2200), and the other end of the first eccentric wheel (2201) is connected with the support (2202).

4. A colposcope as defined in claim 3, wherein: the bearing seat (2203) is fixedly connected to the inner wall of the shell (20) through a fixing piece (2204), and the support (2202) is rotationally connected with the bearing seat (2203).

5. The colposcope according to claim 2, wherein the left and right swinging unit (221) comprises:

A second motor (2210);

The swing block (2212) is arranged on the up-down swing unit (220) and is movably connected with the up-down swing unit (220) through the connecting unit (222), and the camera (21) is arranged on the swing block (2212);

And one end of the second eccentric wheel (2211) is connected with an output shaft of the second motor (2210), and the other end of the second eccentric wheel is connected with the swing block (2212).

6. The colposcope as defined in claim 5, wherein:

And the swing block (2212) is provided with a limiting groove (2214), and the camera (21) is clamped in the limiting groove (2214).

7. The colposcope as set forth in claim 2, wherein the connection unit (222) includes:

a connection bearing (2221), wherein the connection bearing (2221) is arranged on the left-right swing unit (221);

a connection cylinder (2222), the connection cylinder (2222) being provided on the up-and-down swing unit (220);

and one end of the shoulder screw (2220) is fixed with the inner ring of the connecting bearing (2221), and the other end of the shoulder screw (2220) is fixed with the connecting cylinder (2222).

8. Colposcope according to claim 1, characterized in that the vaginal dilator (1) comprises:

an upper support plate (10), wherein one side of the upper support plate (10) is fixedly connected with a connecting piece (11), and the connecting piece (11) is detachably connected with the shell (20);

The lower support plate (12) is movably connected with the upper support plate (10) through an adjusting unit, and an expansion space is formed between the lower support plate (12) and the upper support plate (10);

wherein, the adjusting unit is used for adjusting the size of the expansion space.

9. The colposcope of claim 8, wherein the adjustment unit comprises:

The adjusting piece (13), the said adjusting piece (13) is connected with the connecting piece (11) rotatably;

The limiting part (14), limiting part (14) includes branch (140) and profile of tooth structure (141), branch (140) set up in connecting piece (11) top, profile of tooth structure (141) are fixed in branch (140) one side, profile of tooth structure (141) and regulating part (13) swing joint, when regulating part (13) top is kept away from branch (140) one side by profile of tooth structure (141) and is moved to being close to branch (140) one side, the expansion space increases gradually.