CN221285811U - Two-purpose vaginal speculum for smoking and drinking - Google Patents

Abstract

The utility model discloses a two-suction vaginal dilator for tobacco juice, which comprises a vaginal dilator nozzle, an adjusting pressing handle and a handle, wherein the vaginal dilator nozzle comprises an upper wing and a lower wing, an observation port is arranged at the rear end of the vaginal dilator nozzle, and the observation port is positioned above the adjusting pressing handle and the handle. The handle lateral surface is equipped with the diverter valve, and the diverter valve is connected with smoke tube, drainage pipe and negative pressure pipe respectively, and the smoke tube is fixed in the upper wing and extends to and expand the negative mouth open end, and the drainage pipe is fixed in the lower wing and extends to and expand the negative mouth open end, and the negative pressure pipe is fixed in the handle and extends to the handle lower extreme, and the negative pressure pipe tip is equipped with the negative pressure joint that is used for connecting the negative pressure source, and the diverter valve makes smoke tube and negative pressure pipe intercommunication, or drainage pipe and negative pressure pipe intercommunication, or smoke tube, drainage pipe and negative pressure pipe are not linked together each other. The utility model can prevent the liquid in the vagina of the patient from overflowing to pollute the room, and prevent the toxic smog generated during electric ironing from damaging the patient, and can not prevent medical staff from observing the vagina of the patient and operating instruments at the observation port.

Description

Two-purpose vaginal speculum for smoking and drinking

Technical Field

The utility model relates to medical equipment, in particular to a smoke liquid two-suction vaginal dilator.

Background

In the field of gynecopathy treatment, cervical conization, electric ironing, cervical polypectomy and the like are relatively common medical methods for treating females through vagina, bleeding can be generated in the treatment process, and blood generated in the treatment process flows outside the body along a vaginal dilator, so that the blood cannot be effectively collected due to the fact that a special blood collecting device is not provided, the environment of an operating room is polluted by the blood, the labor intensity of postoperative cleaning of medical staff is increased, toxic smoke can be generated during electric ironing, and the smoke can cause harm to the medical staff and patients.

The Chinese patent of CN210749333U announced by 16 months 06 in 2020 discloses a vaginal dilator for female vaginal operation and sampling, which comprises an upper expansion plate, a lower expansion plate, a blood collecting device and a pathological sample collecting device, wherein the upper expansion plate is hinged on the lower expansion plate, the blood collecting device is arranged at the handle of the lower expansion plate, and the pathological sample collecting device is arranged on the blood collecting device. Although the utility model can draw liquid and smoke, the utility model still has the defects: the discharge flue joint is arranged at the rear end of the vaginal dilation nozzle, which easily prevents medical staff from observing the vagina of a patient and performing instrument operation at the observation port.

Disclosure of utility model

The utility model aims to provide a smoke liquid two-suction vaginal dilator, wherein a negative pressure joint is connected with a negative pressure source at the lower end of a handle to realize smoking and liquid suction of a patient vagina, prevent the liquid in the patient vagina from overflowing to pollute the room, and prevent toxic smoke generated during electric ironing from damaging the patient, and meanwhile, medical staff can not be prevented from observing the patient vagina at an observation port and performing instrument operation.

In order to achieve the above object, the present utility model adopts the following technical scheme:

the utility model provides a two drawing of tobacco juice are with expanding yin ware, includes expands the yin mouth, adjusts presses handle and handle, expands the yin mouth and includes upper wing and lower wing, and upper wing and lower wing are articulated mutually at the rear end, adjusts to press the handle to be fixed in upper wing rear end and integrated into one piece, and the handle is fixed in lower wing rear end and integrated into one piece, expands the yin mouth rear end and is equipped with the viewing aperture, and the viewing aperture is located the top of adjusting to press handle and handle. The handle lateral surface is equipped with the diverter valve, and the diverter valve is connected with smoke tube, drainage pipe and negative pressure pipe respectively, and the smoke tube is fixed in the upper wing and extends to and expand the negative mouth open end, and the drainage pipe is fixed in the lower wing and extends to and expand the negative mouth open end, and the negative pressure pipe is fixed in the handle and extends to the handle lower extreme, and the negative pressure pipe tip is equipped with the negative pressure joint that is used for connecting the negative pressure source, and the diverter valve makes smoke tube and negative pressure pipe intercommunication, or drainage pipe and negative pressure pipe intercommunication, or smoke tube, drainage pipe and negative pressure pipe are not linked together each other.

Compared with the prior art, the smoke liquid two-suction vaginal dilator adopting the technical scheme has the following beneficial effects:

By adopting the smoke liquid two-suction vaginal dilator, medical staff connects the negative pressure joint at the lower end of the handle with the negative pressure source, then uses the switching valve to selectively open the smoke suction pipe and the liquid suction pipe according to the requirements, and the negative pressure generated by the negative pressure source is used for realizing smoke suction and liquid suction in the vagina of a patient, preventing the liquid in the vagina of the patient from overflowing to pollute the room, preventing toxic smoke generated during electric ironing from damaging the patient, and simultaneously preventing the medical staff from observing the vagina of the patient at the observation port and performing instrument operation.

Preferably, the switching valve is equipped with income cigarette mouth, income liquid mouth and exit port, and the tobacco pipe is taken out in the connection of income cigarette mouth, and the suction pipe is connected to income liquid mouth, and the negative pressure pipe is connected to the exit port, and income cigarette mouth, income liquid mouth and exit port intersect in one department and intersection department is equipped with rotatable core, and the core is equipped with the drainage channel in the switching valve, and the core is equipped with the knob outside the switching valve: when the knob rotates to the two ends of the drainage channel to be respectively connected with the smoke inlet and the drainage outlet, the smoke suction pipe is communicated with the negative pressure pipe; when the knob rotates to the drainage channel, the two ends of the drainage channel are respectively connected with the liquid inlet and the liquid outlet, and the liquid suction pipe is communicated with the negative pressure pipe; when the knob rotates to the drainage channel to be disconnected, the smoke suction pipe, the liquid suction pipe and the negative pressure pipe are not communicated with each other. Medical staff makes the switching valve open smoke tube, open the drawing liquid pipe and close drawing liquid pipe and drawing liquid pipe through turning to different positions with the knob respectively, convenient operation.

Preferably, the end face of the exposed end of the knob is marked with a pointer, the end face of the exposed end of the switching valve is marked with a smoking word, an off word and a liquid pumping word, and the smoking word and the liquid pumping word are respectively arranged on two sides of the off word: when the knob rotates to the point to the fume exhausting character, the fume exhausting pipe is communicated with the negative pressure pipe; when the knob rotates to the point to the character of 'liquid pumping', the liquid pumping pipe is communicated with the negative pressure pipe; when the knob rotates to the point to the off character, the smoke suction pipe, the liquid suction pipe and the negative pressure pipe are not communicated with each other. The "smoke drawing" word, the "off" word and the "liquid drawing" word can direct medical staff to rotate the knob.

Preferably, the core stretches out and draws back in the diverter valve to set up, and the core contracts into the end and is equipped with the spring, and the flexible direction of spring is the same with the flexible direction of core, and the core is equipped with a locking piece at the outer peripheral face that meets with the diverter valve, and the diverter valve is equipped with the channel groove of changing in the inner peripheral face that meets with the core, and the channel groove of changing is equipped with smoking locked groove, the locking locked groove of stopping taking out and drawing liquid locked groove near the inside wall of knob, smoking locked groove, locking locked groove of stopping taking out and drawing liquid locked groove respectively with the locking piece lock: when the locking piece moves into the channel changing groove, the spring is compressed and the core body can rotate; when the locking piece moves into the smoking locking groove, the spring is reset and the core body cannot rotate, and at the moment, two ends of the drainage channel are respectively connected with the smoke inlet and the outlet; when the locking piece moves into the liquid-pumping locking groove, the spring is reset and the core body cannot rotate, and at the moment, the two ends of the drainage channel are respectively connected with the liquid inlet and the liquid outlet; when the locking piece moves into the anti-extraction locking groove, the spring is reset, the core body cannot rotate, and the guide channel is not connected. The smoking locking groove, the anti-smoking locking groove and the liquid-drawing locking groove respectively play a role in positioning the locking block and enable the switching valve to be in different states, so that the core body is prevented from rotating accidentally; when the switching valve needs to switch states, medical staff needs to press the core into the switching valve first to rotate the knob to change the states of the switching valve.

Preferably, the upper wing is provided with a plurality of smoke extraction holes at the opening end of the female expansion nozzle, and smoke enters the smoke extraction pipe through the smoke extraction holes and the female expansion nozzle opening. The smoke suction holes enable the smoke in the vagina of the patient to be sucked into the smoke suction pipe more easily.

Preferably, the lower wing is provided with a plurality of liquid suction holes at the opening end of the female expansion nozzle, and liquid enters the liquid suction pipe through the liquid suction holes and the female expansion nozzle opening. The liquid suction hole makes the liquid in the vagina of the patient be sucked into the liquid suction pipe more easily.

Preferably, the end part of the smoke extraction pipe is provided with a smoke extraction joint, and a communicating pipe is connected between the smoke extraction joint and the switching valve. Medical staff opens the liquid suction pipe through the switching valve and breaks the connection of the smoke suction connector and the communicating pipe, and then the smoke suction connector and the negative pressure connector are respectively connected with a negative pressure source, so that liquid and smoke in the vagina of a patient can be separated and simultaneously extracted, and the communicating pipe is used according to the demands of the medical staff.

Preferably, the slot opening edge of the smoking locking slot, the slot opening edge of the anti-smoking locking slot and the slot opening edge of the liquid drawing locking slot are all provided with inclined planes, so that the inner diameters of the slot opening of the smoking locking slot, the inner diameters of the slot opening of the anti-smoking locking slot and the slot opening of the liquid drawing locking slot are gradually reduced from outside to inside. The inner diameter of the notch of the smoking locking groove, the inner diameter of the notch of the anti-smoking locking groove and the inner diameter of the notch of the liquid-drawing locking groove are larger, and the inclined planes of the notch edge of the smoking locking groove, the notch edge of the anti-smoking locking groove and the notch edge of the liquid-drawing locking groove play a transitional role, so that the locking piece can slide into the smoking locking groove, the anti-smoking locking groove and the liquid-drawing locking groove more easily.

Drawings

FIG. 1 is a schematic view showing the structure of a vaginal dilator in example 1.

Fig. 2 is a cross-sectional view of the switching valve and the cartridge in example 1.

Fig. 3 is a schematic structural view of the core in example 1.

Fig. 4 is a bottom view of the core in embodiment 1.

Fig. 5 is a cross-sectional view of the switching valve in embodiment 1.

Fig. 6 is a schematic structural diagram of the channel changing groove in embodiment 1.

FIG. 7 is a schematic diagram showing the use of the vaginal dilator of example 1.

Fig. 8 is a schematic view of the structure of the knob in embodiment 2.

Fig. 9 is a cross-sectional view of the switching valve in embodiment 2.

Reference numerals: 1. a vaginal dilation nozzle; 10. an observation port; 11. an upper wing; 12. a lower wing; 13. adjusting the pressing handle; 14. a handle; 15. a limit rod; 2. a smoke extraction pipe; 20. a smoke extraction connector; 21. a liquid suction pipe; 22. a communicating pipe; 23. a negative pressure pipe; 24. a negative pressure joint; 3. a switching valve; 31. a smoke inlet; 32. a liquid inlet; 33. an outlet port; 34. a core; 35. a flow guiding channel; 4. a knob; 40. a locking groove for locking and unlocking; 41. a smoking locking groove; 42. a liquid pumping locking groove; 43. a locking piece; 44. a spring; 45. a channel changing groove; 46. an indicator needle; 47. an inclined plane; 51. a smoke extraction hole; 52. and a liquid suction hole.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Example 1

The two-suction vaginal speculum for tobacco juice shown in fig. 1 to 7 comprises a vaginal speculum 1, an adjusting pressing handle 13 and a handle 14, wherein the vaginal speculum 1 comprises an upper wing 11 and a lower wing 12, the upper wing 11 and the lower wing 12 are hinged at the rear end, the adjusting pressing handle 13 is fixed at the rear end of the upper wing 11 and is integrally formed, the handle 14 is fixed at the rear end of the lower wing 12 and is integrally formed, an observation opening 10 is arranged at the rear end of the vaginal speculum 1, and the observation opening 10 is positioned above the adjusting pressing handle 13 and the handle 14. The lateral surface of handle 14 is equipped with diverter valve 3, diverter valve 3 is connected with smoke tube 2, suction tube 21 and negative pressure pipe 23 respectively, smoke tube 2 is fixed in upper wing 11 and extends to and expands female mouth 1 open end, suction tube 21 is fixed in lower wing 12 and extends to and expands female mouth 1 open end, negative pressure pipe 23 is fixed in handle 14 and extends to the handle 14 lower extreme, negative pressure pipe 23 tip is equipped with the negative pressure joint 24 that is used for connecting the negative pressure source, diverter valve 3 makes smoke tube 2 and negative pressure pipe 23 intercommunication, or suction tube 21 and negative pressure pipe 23 intercommunication, or smoke tube 2, suction tube 21 and negative pressure pipe 23 are not mutually communicated. Medical staff connects negative pressure source with the negative pressure joint 24 of handle 14 lower extreme, then uses switching valve 3 to select to open smoke tube 2 and drawing liquid pipe 21 according to the demand to through the negative pressure that the negative pressure source produced, realize smoking and drawing liquid in the patient's vagina, prevent that the liquid overflows in the patient's vagina and causes the pollution to indoor, and prevent that the poisonous smog that produces when pressing electrically from causing the injury to the patient, can not hinder medical staff observe patient's vagina and carry out the apparatus operation in viewing aperture 10 department simultaneously.

Referring to fig. 2 and 7, the switching valve 3 is provided with a smoke inlet 31, a liquid inlet 32 and an outlet 33, the smoke inlet 31 is connected with the smoke tube 2, the liquid inlet 32 is connected with the smoke tube 21, the outlet 33 is connected with the negative pressure tube 23, the smoke inlet 31, the liquid inlet 32 and the outlet 33 are intersected at one place and are provided with rotatable cores 34, the cores 34 are provided with a drainage channel 35 in the switching valve 3, and the cores 34 are provided with knobs 4 outside the switching valve 3: when the knob 4 rotates to the two ends of the drainage channel 35 to be respectively connected with the smoke inlet 31 and the smoke outlet 33, the smoke suction pipe 2 is communicated with the negative pressure pipe 23; when the knob 4 rotates to the drainage channel 35, the two ends of the drainage channel are respectively connected with the liquid inlet 32 and the liquid outlet 33, and the liquid suction pipe 21 is communicated with the negative pressure pipe 23; when the knob 4 is turned to the drainage channel 35, the smoke suction pipe 2, the liquid suction pipe 21 and the negative pressure pipe 23 are not communicated with each other. Medical staff makes the switching valve 3 open smoke tube 2, open the drawing liquid pipe 21 and close drawing liquid pipe 21 and drawing liquid pipe 21 respectively through turning to different positions with knob 4, convenient operation.

Wherein, the knob 4 outer peripheral face is equipped with anti-skidding line, and anti-skidding line is used for increasing frictional force, makes medical staff rotate knob 4 more easily.

Referring to fig. 3 to 6, the core 34 is telescopically disposed in the switching valve 3, a spring 44 is disposed at a retracted end of the core 34, a telescopic direction of the spring 44 is the same as that of the core 34, a locking piece 43 is disposed on an outer circumferential surface of the core 34, which is connected with the switching valve 3, a channel changing groove 45 is disposed on an inner circumferential surface, which is connected with the core 34, of the switching valve 3, a smoke extraction locking groove 41, a smoke extraction locking groove 40 and a liquid extraction locking groove 42 are disposed on an inner side wall, which is close to the knob 4, of the channel changing groove 45, and the smoke extraction locking groove 41, the smoke extraction locking groove 40 and the liquid extraction locking groove 42 are respectively buckled with the locking piece 43: when the lock block 43 moves into the lane change groove 45, the spring 44 is compressed and the core 34 is rotatable; when the locking piece 43 moves into the smoking locking groove 41, the spring 44 is reset and the core 34 cannot rotate, and at the moment, the two ends of the drainage channel 35 are respectively connected with the smoke inlet 31 and the drainage outlet 33; when the locking piece 43 moves into the liquid-pumping locking groove 42, the spring 44 is reset and the core 34 cannot rotate, and at the moment, the two ends of the drainage channel 35 are respectively connected with the liquid inlet 32 and the drainage outlet 33; when the locking piece 43 moves into the anti-extraction locking groove 40, the spring 44 is reset and the core 34 cannot rotate, and at the moment, the guide channel 35 is not connected. The smoking locking groove 41, the anti-smoking locking groove 40 and the liquid-drawing locking groove 42 respectively play a role in positioning the locking piece 43 and enable the switching valve 3 to be in different states, so that the core 34 is prevented from rotating accidentally; when the switching valve 3 needs to switch states, medical staff needs to press the core 34 into the switching valve 3 first to rotate the knob 4 to change the state of the switching valve 3.

Referring to fig. 1, the upper wing 11 is provided with a plurality of smoke extraction holes 51 at the opening end of the female expansion nozzle 1, and smoke passes through the smoke extraction holes 51 and the opening of the female expansion nozzle 1 and enters the smoke extraction pipe 2. The smoke evacuation holes 51 allow smoke in the vagina of the patient to be more easily drawn into the smoke evacuation tube 2.

Wherein, the lower wing 12 is provided with a plurality of liquid suction holes 52 at the opening end of the female expansion nozzle 1, and liquid enters the liquid suction pipe 21 through the liquid suction holes 52 and the opening of the female expansion nozzle 1. The access opening 52 allows fluid from the patient's vagina to be more easily drawn into the access tube 21.

Wherein, the end of the smoke tube 2 is provided with a smoke connector 20, and a communicating pipe 22 is connected between the smoke connector 20 and the switching valve 3. Medical staff opens the liquid suction pipe 21 through the switching valve 3 and disconnects the connection of the smoke suction connector 20 and the communicating pipe 22, and then the smoke suction connector 20 and the negative pressure connector 24 are respectively connected with a negative pressure source, so that liquid and smoke in the vagina of a patient can be extracted separately and simultaneously, and the communicating pipe 22 is used according to the requirements of the medical staff.

Wherein, be equipped with gag lever post 15 between regulation press handle 13 and the handle 14, gag lever post 15 can refer to patent CN211213289U, is convenient for control the expansion of expanding the vagina ware, and structural setting is reasonable.

Example 2

As shown in fig. 8 to 9, the two-suction smoke expander is based on embodiment 1, and the difference between this embodiment and embodiment 1 is that:

Referring to fig. 8, the exposed end face of the knob 4 is marked with a pointer, the exposed end face of the switching valve 3 is marked with a "smoking" character, an "off" character and a "liquid-drawing" character, and the "smoking" character and the "liquid-drawing" character are respectively arranged on two sides of the "off" character: when the knob 4 is turned to the point to the word of 'smoking', the smoking pipe 2 is communicated with the negative pressure pipe 23; when the knob 4 rotates to the point of the pointer to the character of 'liquid pumping', the liquid pumping pipe 21 is communicated with the negative pressure pipe 23; when the knob 4 is turned to the point to the "off" character, the smoke evacuation tube 2, the liquid evacuation tube 21 and the negative pressure tube 23 are not communicated with each other. The "smoke evacuation" and "off" words and "liquid evacuation" words can direct the medical personnel to turn the knob 4.

Referring to fig. 9, the notch side of the smoking locking groove 41, the notch side of the anti-extraction locking groove 40 and the notch side of the liquid extraction locking groove 42 are provided with inclined surfaces 47, so that the notch inner diameter of the smoking locking groove 41, the notch inner diameter of the anti-extraction locking groove 40 and the notch inner diameter of the liquid extraction locking groove 42 are gradually reduced from outside to inside. The inner diameters of the notch of the smoking locking groove 41, the inner diameters of the notch of the anti-smoking locking groove 40 and the inner diameters of the notch of the liquid-drawing locking groove 42 are larger, and the inclined planes 47 of the notch side of the smoking locking groove 41, the notch side of the anti-smoking locking groove 40 and the notch side of the liquid-drawing locking groove 42 play a transitional role, so that the locking piece 43 can slide into the smoking locking groove 41, the anti-smoking locking groove 40 and the liquid-drawing locking groove 42 more easily.

While the foregoing is directed to the preferred embodiment of the present utility model, other and further modifications and improvements may be made by those skilled in the art without departing from the principles of the utility model, and such are intended to be considered within the scope of the utility model.

Claims (8)

1. The utility model provides a two suction of tobacco juice are with expanding yin ware which characterized in that: comprises a vaginal dilation nozzle (1), an adjusting pressing handle (13) and a handle (14), wherein the vaginal dilation nozzle (1) comprises an upper wing (11) and a lower wing (12), the upper wing (11) and the lower wing (12) are hinged at the rear end, the adjusting pressing handle (13) is fixed at the rear end of the upper wing (11) and is integrally formed, the handle (14) is fixed at the rear end of the lower wing (12) and is integrally formed, the rear end of the vaginal dilation nozzle (1) is provided with an observation opening (10), the observation opening (10) is positioned above the adjusting pressing handle (13) and the handle (14),

The utility model provides a handle (14) lateral surface is equipped with diverter valve (3), diverter valve (3) are connected with smoke tube (2), drawing liquid pipe (21) and negative pressure pipe (23) respectively, smoke tube (2) are fixed in upper wing (11) and extend to expand negative mouth (1) open end, drawing liquid pipe (21) are fixed in lower wing (12) and extend to expand negative mouth (1) open end, negative pressure pipe (23) are fixed in handle (14) and extend to handle (14) lower extreme, negative pressure pipe (23) tip is equipped with negative pressure joint (24) that are used for connecting the negative pressure source, diverter valve (3) make smoke tube (2) and negative pressure pipe (23) intercommunication, or drawing liquid pipe (21) and negative pressure pipe (23) intercommunication, or smoke tube (2), drawing liquid pipe (21) and negative pressure pipe (23) are not linked together.

2. The smoke two-pump vaginal speculum of claim 1, wherein: the switching valve (3) is provided with a smoke inlet (31), a liquid inlet (32) and an outlet (33), the smoke inlet (31) is connected with the smoke suction pipe (2), the liquid inlet (32) is connected with the liquid suction pipe (21), the outlet (33) is connected with the negative pressure pipe (23), the smoke inlet (31), the liquid inlet (32) and the outlet (33) are intersected at one place and are provided with rotatable cores (34), the cores (34) are provided with guide channels (35) in the switching valve (3), and the cores (34) are provided with knobs (4) outside the switching valve (3): when the knob (4) rotates to the two ends of the drainage channel (35) to be respectively connected with the smoke inlet (31) and the smoke outlet (33), the smoke suction pipe (2) is communicated with the negative pressure pipe (23); when the knob (4) rotates to the drainage channel (35), two ends of the drainage channel are respectively connected with the liquid inlet (32) and the liquid outlet (33), and the liquid suction pipe (21) is communicated with the negative pressure pipe (23); when the knob (4) is turned to the drainage channel (35) to be disconnected, the smoke suction pipe (2), the liquid suction pipe (21) and the negative pressure pipe (23) are not communicated with each other.

3. The smoke two-pump vaginal speculum of claim 2, wherein: the end face of the exposed end of the knob (4) is marked with a pointer, the end face of the exposed end of the switching valve (3) is marked with a smoking character, a closing character and a liquid pumping character, and the smoking character and the liquid pumping character are respectively arranged on two sides of the closing character: when the knob (4) rotates to the point to the word of smoking, the smoking pipe (2) is communicated with the negative pressure pipe (23); when the knob (4) rotates to the point of the pointer to the character of 'liquid pumping', the liquid pumping pipe (21) is communicated with the negative pressure pipe (23); when the knob (4) rotates to the point of the pointer to the off word, the smoke suction pipe (2), the liquid suction pipe (21) and the negative pressure pipe (23) are not communicated with each other.

4. The smoke two-pump vaginal speculum of claim 2, wherein: the utility model discloses a smoke extraction lock comprises a switch valve (3), a core body (34), a locking piece (43), a smoke extraction lock groove (41), a locking lock groove (40) and a liquid extraction lock groove (42) are arranged at the inner side wall close to a knob (4) of the switch valve (45), the spring (44) is arranged at the retracting end of the core body (34), the extending direction of the spring (44) is the same as that of the core body (34), the core body (34) is provided with the locking piece (43) on the outer peripheral surface connected with the switch valve (3), the switch valve (3) is provided with the channel changing groove (45) on the inner peripheral surface connected with the core body (34), and the smoke extraction lock groove (41), the locking lock groove (40) and the liquid extraction lock groove (42) are buckled with the locking piece (43) respectively. When the locking piece (43) moves into the channel changing groove (45), the spring (44) is compressed and the core (34) can rotate; when the locking piece (43) moves into the smoking locking groove (41), the spring (44) is reset and the core body (34) cannot rotate, and at the moment, two ends of the drainage channel (35) are respectively connected with the smoke inlet (31) and the drainage outlet (33); when the locking piece (43) moves into the liquid-pumping locking groove (42), the spring (44) is reset and the core body (34) cannot rotate, and at the moment, two ends of the drainage channel (35) are respectively connected with the liquid inlet (32) and the drainage outlet (33); when the locking piece (43) moves into the anti-pulling locking groove (40), the spring (44) is reset, the core (34) cannot rotate, and the guide channel (35) is not connected.

5. The smoke two-pump vaginal speculum of claim 1, wherein: the upper wing (11) is provided with a plurality of smoke extraction holes (51) at the opening end of the female expansion nozzle (1), and smoke passes through the smoke extraction holes (51) and the opening of the female expansion nozzle (1) and enters the smoke extraction pipe (2).

6. The smoke two-pump vaginal speculum of claim 1, wherein: the lower wing (12) is provided with a plurality of liquid suction holes (52) at the opening end of the female expansion nozzle (1), and liquid enters the liquid suction pipe (21) through the liquid suction holes (52) and the opening of the female expansion nozzle (1).

7. The smoke two-pump vaginal speculum of claim 1, wherein: the end part of the smoke extraction pipe (2) is provided with a smoke extraction joint (20) for connecting a negative pressure source, and a communicating pipe (22) is connected between the smoke extraction joint (20) and the switching valve (3).

8. The smoke two-pump vaginal speculum of claim 4, wherein: the notch edge of the smoking locking groove (41), the notch edge of the anti-smoking locking groove (40) and the notch edge of the liquid-drawing locking groove (42) are respectively provided with an inclined plane (47), so that the notch inner diameter of the smoking locking groove (41), the notch inner diameter of the anti-smoking locking groove (40) and the notch inner diameter of the liquid-drawing locking groove (42) are gradually reduced from outside to inside.