CN221046759U

CN221046759U - Cleaning equipment capable of controlling gas and liquid and endoscope

Info

Publication number: CN221046759U
Application number: CN202322248221.8U
Authority: CN
Inventors: 陈深旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-05-31
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses a controllable gas-liquid cleaning device and an endoscope, comprising a shell, a liquid pipeline, a gas pipeline, a control valve and a liquid storage bottle; the liquid pipeline is arranged in the shell, two ends of the liquid pipeline are respectively provided with a liquid inlet and a liquid outlet, and the liquid outlet is connected with a spray head; the gas pipeline is arranged in the shell, and the two ends of the gas pipeline respectively form a gas inlet and a gas outlet; the liquid storage bottle is detachably connected to the shell, and a liquid inlet of the liquid pipeline is arranged in the liquid storage bottle. According to the utility model, the liquid pipeline and the gas pipeline are arranged in the shell, so that the positions between the liquid pipeline and the gas pipeline are relatively fixed, and no winding occurs any more; simultaneously, because the liquid storage bottle can be dismantled and connect on the casing, consequently can not appear the unable stable condition of carrying away the cleaner of liquid pipeline, the user of being convenient for uses, has also improved clean efficiency simultaneously.

Description

Cleaning equipment capable of controlling gas and liquid and endoscope

Technical Field

The utility model relates to the technical field of industrial endoscopes, in particular to a controllable gas-liquid cleaning device and an endoscope.

Background

With the development of social industrialization, electronic endoscopes having imaging elements mounted thereon have been widely used not only in the medical field but also in industrial equipment cleaning, metal inspection and industrial equipment repair, such as turbine cleaning, detecting corrosion conditions inside and outside a pipe, pipe blockage inspection, and the like.

The existing endoscope is generally provided with cleaning equipment, industrial equipment is cleaned by the aid of the cleaning equipment, in the process of using the cleaning equipment, after the cleaning equipment is found to be closed, cleaning liquid residues are found to exist in the cleaning equipment, internal devices of the cleaning equipment are easy to damage, protection of the cleaning equipment is not facilitated, meanwhile, the problem of liquid dripping is easy to occur after the existing cleaning equipment is closed, and meanwhile, the problem of abrasion of a sealing structure is easy to occur in the use process of the cleaning equipment.

Chinese patent CN202022115493.7 discloses a controllable gas-liquid cleaning device and endoscope which solves the above problems by using the cooperation of a deformable coil assembly, a gas path elastic needle valve assembly and a liquid path elastic needle valve assembly. However, in use, the parts are not fixed relatively, so that the gas pipe and the liquid pipe are wound, and the use and the storage are inconvenient; meanwhile, because the liquid storage bottle and the valve mounting seat are not relatively fixed, when the valve mounting seat is moved, the liquid storage bottle is easy to topple over under the pulling of the liquid pipe, so that the liquid pipe positioned in the liquid storage bottle is not contacted with the cleaning agent, the cleaning agent cannot be stably conveyed out, and the use is inconvenient.

Disclosure of utility model

The embodiment of the utility model provides a brush head and cleaning equipment, which are used for solving the problem that the cleaning equipment is inconvenient to use.

The utility model provides a controllable gas-liquid cleaning device, which comprises a shell, a liquid pipeline, a gas pipeline, a control valve and a liquid storage bottle, wherein the liquid pipeline is arranged on the shell; the liquid pipeline is arranged in the shell, two ends of the liquid pipeline are respectively provided with a liquid inlet and a liquid outlet, and the liquid outlet is connected with a spray head; the gas pipeline is arranged in the shell, and the two ends of the gas pipeline respectively form a gas inlet and a gas outlet; the gas pipeline at least partially extends in the liquid pipeline, and a liquid circulation cavity is reserved between the outer wall of the gas pipeline and the inner wall of the liquid pipeline; the control valve is arranged in the shell and is used for controlling the opening and blocking of the liquid pipeline and/or the gas pipeline; the liquid storage bottle is detachably connected to the shell, and a liquid inlet of the liquid pipeline is arranged in the liquid storage bottle.

Optionally, the cleaning apparatus further comprises an adapter mounted on the housing and extending out of the housing; the adapter communicates with the gas inlet of the gas conduit.

Optionally, the shell comprises a handheld part and a cleaning part, the handheld part is connected with the cleaning part, the air inlet is arranged at one end of the handheld part far away from the cleaning part, and the control valve is arranged in the handheld part; the liquid storage bottle is detachably connected with the cleaning part, and the spray head is connected with one end, far away from the handheld part, of the cleaning part.

Optionally, the controllable gas-liquid cleaning device further comprises a three-way valve, wherein the three-way valve comprises a first joint, a second joint and a third joint which are communicated with each other;

The liquid pipeline comprises a liquid inlet pipe and a liquid spraying pipe, the liquid inlet is arranged at one end of the liquid inlet pipe, and the liquid outlet is arranged at one end of the liquid spraying pipe; one end of the liquid inlet pipe, which is far away from the liquid inlet, is communicated with the liquid inlet end, and one end of the liquid spraying pipe, which is far away from the liquid outlet, is communicated with the liquid outlet end;

The air pipeline comprises an air inlet pipe and an air jet pipe, the air inlet is arranged at one end of the air inlet pipe, and the air outlet is arranged at one end of the air jet pipe; one end of the air inlet pipe, which is far away from the air inlet, is communicated with the air inlet end, and one end of the air ejector pipe, which is far away from the air outlet, is communicated with the air outlet end; the liquid spraying pipe is sleeved on the periphery of the air spraying pipe;

The liquid inlet pipe is connected with the first connector, the air inlet pipe is connected with the second connector, and the liquid spraying pipe and the air spraying pipe are respectively connected with the third connector.

Optionally, the control valve comprises a valve mounting seat, an air path elastic needle valve assembly, a liquid path elastic needle valve assembly, a three-way valve and a pressing piece, wherein the valve mounting seat is provided with an air inlet end, an air outlet end, a liquid inlet end and a liquid outlet end;

The air passage elastic needle valve assembly is arranged between the air inlet end and the air outlet end; the liquid path elastic needle valve assembly is arranged between the liquid inlet end and the liquid outlet end;

One end of the pressing piece is rotationally connected with the shell, and the pressing piece is arranged on the shell in a reciprocating manner among a first position, a second position and a third position; when the pressing piece is positioned at the first position, the air channel elastic needle valve assembly seals the air inlet end and the air outlet end; the liquid path elastic needle valve assembly seals the liquid inlet end and the liquid outlet end;

When the pressing piece is positioned at the second position, the air passage elastic needle valve assembly conducts the air inlet end and the air outlet end; the liquid path elastic needle valve assembly seals the liquid inlet end and the liquid outlet end;

When the pressing piece is positioned at the third position, the air passage elastic needle valve assembly conducts the air inlet end and the air outlet end; the liquid path elastic needle valve assembly conducts the liquid inlet end and the liquid outlet end.

Optionally, the valve mounting seat is provided with an air passage needle valve guide cavity and a liquid passage needle valve guide cavity which are not coaxial and are opened at the same side; the air inlet end and the air outlet end are respectively communicated with the guide cavity of the air path needle valve; the liquid inlet end and the liquid outlet end are respectively communicated with the liquid path needle valve guide cavity.

Optionally, the air passage elastic needle valve assembly is slidably assembled in the air passage needle valve guiding cavity, and the pressing piece controls the air passage elastic needle valve assembly to slide along the air passage needle valve guiding cavity so as to close or communicate the air inlet end and the air outlet end;

The liquid path elastic needle valve assembly is slidably assembled in the liquid path needle valve guide cavity, and the pressing piece controls the liquid path elastic needle valve assembly to slide along the liquid path needle valve guide cavity so as to close or communicate the liquid inlet end with the liquid outlet end.

Optionally, the air passage needle valve guiding cavity comprises a first air passage guiding cavity with an opening at one side and a second air passage guiding cavity extending from the tail end of the first air passage guiding cavity to the vertical direction, the air outlet end is communicated with the first air passage guiding cavity, and the air inlet end is communicated with the second air passage guiding cavity; the air passage elastic needle valve assembly comprises an air passage needle valve, an air passage elastic member which is in butt joint with the air passage needle valve, and an air passage sealing part which extends outwards from the air passage needle valve, wherein the air passage elastic member is arranged on one side of the second air passage guide cavity, which is far away from the first air passage guide cavity, the head end of the air passage needle valve extends out of an opening of the first air passage guide cavity to be in butt joint with the pressing member, and the tail end of the air passage needle valve is in butt joint with the air passage elastic member; the gas path sealing part is positioned in the second gas path guiding cavity, and the outer edge of the gas path sealing part is abutted with the cavity wall of the second gas path guiding cavity; when the pressing piece is positioned at the first position, the air inlet end and the air outlet end are closed, the air passage sealing part is positioned between the air inlet end and the air outlet end, and the air passage sealing part is abutted with the cavity wall, close to the first air passage guiding cavity, of the second air passage guiding cavity; when the pressing piece is positioned at the second position, the air inlet end is communicated with the air outlet end, and the air path sealing part is positioned outside the air inlet end and the air outlet end.

Optionally, the liquid path needle valve guiding cavity comprises a first liquid path guiding cavity with an opening at one side and a second liquid path guiding cavity extending from the tail end of the first liquid path guiding cavity to the vertical direction, the liquid inlet end is communicated with the first liquid path guiding cavity, and the liquid outlet end is communicated with the second liquid path guiding cavity; the liquid path elastic needle valve assembly comprises a liquid path needle valve, a liquid path elastic member which is in butt joint with the liquid path needle valve, and a liquid path sealing part which extends outwards from the liquid path needle valve, wherein the liquid path elastic member is arranged on one side of the second liquid path guide cavity, which is far away from the first liquid path guide cavity, the head end of the liquid path needle valve extends out of the opening of the first liquid path guide cavity, and the tail end of the liquid path needle valve is in butt joint with the liquid path elastic member; the liquid path sealing part is positioned in the second liquid path guiding cavity, and the outer edge of the liquid path sealing part is abutted with the cavity wall of the second liquid path guiding cavity; when the pressing piece is positioned at the first position, the liquid inlet end and the liquid outlet end are closed, the liquid path sealing part is positioned between the liquid inlet end and the liquid outlet end, and the liquid path sealing part is abutted against the cavity wall of the second liquid path guiding cavity, which is close to the first liquid path guiding cavity; when the pressing piece is positioned at the second position, the liquid inlet end is communicated with the liquid outlet end, and the liquid path sealing part is positioned outside the liquid inlet end and the liquid outlet end.

In another aspect, the utility model also provides an endoscope comprising a cleaning apparatus as claimed in any one of the preceding claims.

In the utility model, the liquid pipeline and the gas pipeline are arranged in the shell, so that the positions between the liquid pipeline and the gas pipeline are relatively fixed, and no winding occurs any more; simultaneously, because the liquid storage bottle can be dismantled and connect on the casing, consequently can not appear the unable stable condition of carrying away the cleaner of liquid pipeline, the user of being convenient for uses, has also improved clean efficiency simultaneously.

Drawings

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

FIG. 1 is a schematic structural view of a cleaning apparatus in an embodiment of the present utility model;

FIG. 2 is a schematic partial block diagram of a cleaning apparatus in an embodiment of the utility model;

FIG. 3 is a schematic partial block diagram of a cleaning apparatus in an embodiment of the utility model;

FIG. 4 is a schematic partial block diagram of a cleaning apparatus in an embodiment of the utility model;

FIG. 5 is a schematic block diagram of a control valve in a cleaning apparatus in accordance with an embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view in the direction A-A of FIG. 5;

fig. 7 is a schematic cross-sectional view in the direction B-B in fig. 5.

Wherein: 100. the device comprises a shell, 110, a hand-held part, 120, a cleaning part, 200, a liquid pipeline, 201, a liquid inlet, 202, a liquid outlet, 210, a liquid inlet pipe, 220, a liquid spraying pipe, 300, a gas pipeline, 301, a gas inlet, 302, a gas outlet, 310, a gas inlet pipe, 320, a gas spraying pipe, 400, a control valve, 410, a valve mounting seat, 411, a gas inlet end, 412, a gas outlet end, 413, a liquid inlet end, 414, a liquid outlet end, 415, a gas passage needle valve guiding cavity, 4151, a first gas passage guiding cavity, 4152, a second gas passage guiding cavity, 416, a liquid passage needle valve guiding cavity, 4161, a first liquid passage guiding cavity, 4162, a second liquid passage guiding cavity, 420, a gas passage elastic needle valve assembly, 421, a gas passage, 422, a gas passage elastic member, 423, a gas passage sealing part, 430, a liquid passage elastic needle valve assembly, 431, a liquid passage needle valve, 432, a liquid passage elastic member, 433, a liquid passage sealing part, 440, a pressing member, 500, a bottle, 510, a bottle body, 520, a bottle cap, 600, a spray head, 700, a liquid passage needle valve guiding cavity, a connecting head, 800, a three-way joint, and a three-way joint.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 7, a controllable gas-liquid cleaning apparatus according to an embodiment of the present utility model includes a housing 100, a liquid pipe 200, a gas pipe 300, a control valve 400, and a liquid storage bottle 500; the liquid pipeline 200 is arranged in the shell 100, two ends of the liquid pipeline 200 are respectively provided with a liquid inlet 201 and a liquid outlet 202, and the liquid outlet 202 is connected with a spray head 600; the gas pipe 300 is arranged in the shell 100, and two ends of the gas pipe 300 respectively form a gas inlet 301 and a gas outlet 302; at least a portion of the gas conduit 300 extends within the liquid conduit 200, with a liquid flow lumen 700 left between the outer wall of the gas conduit 300 and the inner wall of the liquid conduit 200; the control valve 400 is disposed in the housing 100 and is used for controlling the opening and blocking of the liquid pipeline 200 and/or the gas pipeline 300; the liquid storage bottle 500 is detachably connected to the housing 100, and the liquid inlet 201 of the liquid pipeline 200 is disposed in the liquid storage bottle 500.

In the present embodiment, by disposing the liquid pipe 200 and the gas pipe 300 inside the housing 100, the positions therebetween are relatively fixed, and no more entanglement occurs; meanwhile, since the liquid storage bottle 500 is detachably connected to the housing 100, the situation that the liquid pipeline 200 cannot stably convey the cleaning agent is avoided, the use by a user is facilitated, and meanwhile, the cleaning efficiency is improved.

When the liquid storage device is applied, high-pressure gas is sprayed into the liquid pipeline 200 through the gas pipeline 300, the pressure in the liquid pipeline 200 is reduced through the circulation of the high-pressure gas, so that liquid in the liquid storage bottle 500 is sucked out through the liquid circulation cavity 700 and the liquid pipeline 200, mixed and atomized with the high-pressure gas at the gas outlet 302 of the gas pipeline 300, and sprayed out from the nozzle 600 connected with the liquid pipeline 200, the atomization degree of the liquid is effectively improved, and meanwhile, the problem of backflow of residual liquid in the liquid pipeline 200 is avoided due to the mutual isolation of the gas pipeline 300 and the liquid pipeline 200 through the liquid circulation cavity 700. It should be noted that the liquid in the embodiment of the present utility model may be a cleaning liquid.

As shown in fig. 1, 3 and 4, in some embodiments of the utility model, the cleaning apparatus further comprises an adaptor 800, the adaptor 800 being mounted on the housing 100 and extending outside the housing 100; the adaptor 800 communicates with the gas inlet 301 of the gas conduit 300. By arranging the adaptor 800, the gas pipeline 300 can be detachably connected with a gas source through the adaptor 800 and an external pipeline, so that the overhaul and the maintenance are convenient.

In some embodiments of the present utility model, the housing 100 includes a hand-held portion 110 and a cleaning portion 120, the hand-held portion 110 is connected to the cleaning portion 120, the air inlet 301 is disposed at an end of the hand-held portion 110 away from the cleaning portion 120, and the control valve 400 is disposed in the hand-held portion 110; the liquid storage bottle 500 is detachably connected with the cleaning part 120, and the spray head 600 is connected with one end of the cleaning part 120 away from the hand-held part 110.

As shown in fig. 2, in some embodiments of the utility model, the air outlet 302 is located upstream of the liquid outlet 202 in the direction of flow of the liquid within the liquid flow-through chamber 700. So arranged, it is possible to ensure that the gas pipe 300 sprays high-pressure gas into the liquid pipe 200, thereby reducing the pressure in the liquid pipe 200; meanwhile, a mixed atomizing space can be provided for gas and liquid, so that the liquid is ensured to be fully atomized.

As shown in fig. 3 and 4, in some embodiments of the present utility model, the liquid storage bottle 500 includes a bottle body 510 and a bottle cap 520, the bottle cap 520 is disposed on the housing 100, the bottle body 510 is screwed with the bottle cap 520, and one end of the liquid pipe extends into the bottle body 510 through the bottle cap 520. When the bottle body 510 is connected with the bottle cap 520, the bottle body 510 and the shell 100 are integrated, so that the bottle is convenient to use; after the liquid in the liquid storage bottle 500 is used, the bottle body 510 can be unscrewed and the liquid can be added.

In some embodiments of the present utility model, the controllable gas-liquid cleaning apparatus further comprises a three-way valve 900, the three-way valve 900 comprising a first joint, a second joint, and a third joint in communication with each other; the liquid pipeline 200 comprises a liquid inlet pipe 210 and a liquid spraying pipe 220, wherein a liquid inlet 201 is formed at one end of the liquid inlet pipe 210, and a liquid outlet 202 is formed at one end of the liquid spraying pipe 220;

One end of the liquid inlet pipe 210, which is far away from the liquid inlet, is communicated with a liquid inlet end 413, and one end of the liquid spraying pipe 220, which is far away from the liquid outlet, is communicated with a liquid outlet end 414; the gas duct 300 includes a gas inlet pipe 310 and a gas injection pipe 320, a gas inlet 301 is formed at one end of the gas inlet pipe 310, and a gas outlet 302 is formed at one end of the gas injection pipe 320; one end of the air inlet pipe 310, which is far away from the air inlet, is communicated with an air inlet end 411, and one end of the air ejector pipe 320, which is far away from the air outlet, is communicated with an air outlet end 412; the liquid inlet pipe is connected with the first joint, the air inlet pipe is connected with the second joint, and the liquid spraying pipe and the air spraying pipe are respectively connected with the third joint.

As shown in fig. 3 and 4, in some embodiments of the present utility model, the control valve 400 includes a valve mounting seat 410, an air path elastic needle valve assembly 420, a liquid path elastic needle valve assembly 430, a three-way valve 900 and a pressing member 440, and an air inlet end 411, an air outlet end 412, an air inlet end 413 and an air outlet end 414 are disposed on the valve mounting seat 410; the air path elastic needle valve assembly 420 is arranged between the air inlet end 411 and the air outlet end 412; the liquid path elastic needle valve assembly 430 is arranged between the liquid inlet end 413 and the liquid outlet end 414; one end of the pressing member 440 is rotatably connected with the housing 100, and the pressing member 440 is reciprocally disposed on the housing 100 between a first position, a second position and a third position; when the pressing member 440 is at the first position, the air path elastic needle valve assembly 420 seals the air inlet end 411 and the air outlet end 412; the liquid inlet end 413 and the liquid outlet end 414 are blocked by the liquid path elastic needle valve assembly 430; when the pressing member 440 is at the second position, the air path elastic needle valve assembly 420 conducts the air inlet 411 and the air outlet 412; the liquid inlet end 413 and the liquid outlet end 414 are blocked by the liquid path elastic needle valve assembly 430; when the pressing member 440 is at the third position, the air path elastic needle valve assembly 420 conducts the air inlet 411 and the air outlet 412; the liquid path elastic needle valve assembly 430 conducts the liquid inlet end 413 and the liquid outlet end 414.

In this embodiment, when the pressing member 440 moves from the first position to the second position, the air path elastic needle valve assembly 420 communicates the air inlet 411 with the air outlet 412, and high pressure air is input into the air inlet 411; when the pressing member 440 moves from the second position to the third position, the liquid path elastic needle valve assembly 430 communicates the liquid inlet 413 with the liquid outlet 414, and since the liquid inlet 201 and the air inlet 301 are communicated with the spray head 600 via the gas-liquid mixing portion, a negative pressure exists between the liquid circulation cavity 700 and the spray head 600, so that according to the siphon principle, it can be known that the negative pressure can make the cleaning liquid gush into the liquid inlet 413, the liquid outlet 414 and the liquid inlet 201 to enter the liquid circulation cavity 700 and flow to the spray head 600, and the cleaning liquid and the high-pressure gas are mixed between the air outlet 302 and the liquid outlet 202, and the industrial equipment is cleaned by the spray head 600.

When the pressing member 440 returns from the third position to the second position, the liquid path elastic needle valve assembly 430 closes the liquid inlet 413 and the liquid outlet 414; when the pressing member 440 returns from the second position to the first position, the air inlet end 411 and the air outlet end 412 are closed after the air path elastic needle valve assembly 420, it can be understood that when the liquid inlet end 413 and the liquid outlet end 414 are closed, the cleaning liquid immediately stops to flow into the cleaning device, and then the high-pressure gas is closed, so that the cleaning liquid remained in the cleaning device is brought out of the cleaning device by the high-pressure gas to protect the devices in the cleaning device, the service life is prolonged, the practicability is high, and the cleaning liquid cannot flow into the cleaning device due to the fact that the liquid inlet end 413 and the liquid outlet end 414 are closed, so that the problem that the existing cleaning device has liquid drops can be solved.

As shown in fig. 5 to 7, in some embodiments of the present utility model, the valve mounting seat 410 is provided with an air passage needle valve guide cavity 415 and a liquid passage needle valve guide cavity 416 which are not coaxial and are opened on the same side; the air inlet end 411 and the air outlet end 412 are communicated with the air path needle valve guide cavity 415; the liquid inlet 413 and the liquid outlet 414 are communicated with the liquid path needle valve guide cavity 416. The air passage elastic needle valve assembly 420 is slidably assembled in the air passage needle valve guide cavity 415, and the pressing piece 440 controls the air passage elastic needle valve assembly 420 to slide along the air passage needle valve guide cavity 415 so as to close or communicate the air inlet end 411 and the air outlet end 412; the hydraulic needle spring assembly 430 is slidably mounted within the hydraulic needle guide chamber 416, and the presser 440 controls the sliding movement of the hydraulic needle spring assembly 430 along the hydraulic needle guide chamber 416 to close or communicate the fluid inlet 413 and outlet 414 ends.

As shown in fig. 5 to 7, in some embodiments of the present utility model, the air passage needle valve guide chamber 415 includes a first air passage guide chamber 4151 having one side opened and a second air passage guide chamber 4152 extending in a vertical direction from a rear end of the first air passage guide chamber 4151, the air outlet end 412 communicates with the first air passage guide chamber 4151, and the air inlet end 411 communicates with the second air passage guide chamber 4152; the air passage elastic needle valve assembly 420 comprises an air passage needle valve 421, an air passage elastic member 422 which is abutted with the air passage needle valve 421, and an air passage sealing part 423 which extends outwards from the air passage needle valve 421, wherein the air passage elastic member 422 is arranged on one side of the second air passage guide cavity 4152 away from the first air passage guide cavity 4151, the head end of the air passage needle valve 421 extends out of the opening of the first air passage guide cavity 4151 to be abutted with the pressing member 440, and the tail end of the air passage needle valve 421 is abutted with the air passage elastic member 422; the air passage sealing part 423 is positioned in the second air passage guiding cavity 4152, and the outer edge of the air passage sealing part 423 is abutted with the cavity wall of the second air passage guiding cavity 4152; when the pressing member 440 is at the first position, the air inlet end 411 and the air outlet end 412 are closed, the air path sealing portion 423 is located between the air inlet end 411 and the air outlet end 412, and the air path sealing portion 423 abuts against the second air path guiding cavity 4152 near the cavity wall of the first air path guiding cavity 4151; when the pressing member 440 is in the second position, the air inlet 411 and the air outlet 412 communicate, and the air path sealing portion 423 is located outside the air inlet 411 and the air outlet 412.

Specifically, the second air channel guiding chamber 4152 is formed by extending from the tail end of the first air channel guiding chamber 4151 towards the vertical direction, the air outlet end 412 is communicated with the first air channel guiding chamber 4151, and the air inlet end 411 is communicated with the second air channel guiding chamber 4152; when the pressing member 440 is at the first position, the air path sealing portion 423 is located between the air inlet end 411 and the air outlet end 412, and the air path sealing portion 423 abuts against the second air path guiding chamber 4152 near the chamber wall of the first air path guiding chamber 4151, so that the air tightness between the air inlet end 411 and the air outlet end 412 is good, so as to better close the air inlet end 411 and the air outlet end 412, and avoid air leakage.

As an example, to ensure that the air tightness of the guide cavity 415 of the air path needle 421 is good, an air path head end sealing ring is sleeved at the head end of the air path needle 421, and the outer edge of the air path head end sealing ring abuts against the cavity wall of the first air path guide cavity 4151.

As shown in fig. 5 to 7, in some embodiments of the present utility model, the liquid path needle valve guide chamber 416 includes a first liquid path guide chamber 4161 having one side opened and a second liquid path guide chamber 4162 extending in a vertical direction from the rear end of the first liquid path guide chamber 4161, the liquid inlet end 413 communicates with the first liquid path guide chamber 4161, and the liquid outlet end 414 communicates with the second liquid path guide chamber 4162; the liquid path elastic needle valve assembly 430 comprises a liquid path needle valve 431, a liquid path elastic member 432 abutted with the liquid path needle valve 431, and a liquid path sealing part 433 extending outwards from the liquid path needle valve 431, wherein the liquid path elastic member 432 is arranged on one side of the second liquid path guiding cavity 4162 away from the first liquid path guiding cavity 4161, the head end of the liquid path needle valve 431 extends out of the opening of the first liquid path guiding cavity 4161, and the tail end of the liquid path needle valve 431 is abutted with the liquid path elastic member 432; the liquid path sealing part 433 is positioned in the second liquid path guiding cavity 4162, and the outer edge of the liquid path sealing part 433 is abutted against the cavity wall of the second liquid path guiding cavity 4162; when the pressing member 440 is at the first position, the liquid inlet 413 and the liquid outlet 414 are closed, the liquid path sealing part 433 is positioned between the liquid inlet 413 and the liquid outlet 414, and the liquid path sealing part 433 is abutted against the cavity wall of the second liquid path guiding cavity 4162, which is close to the first liquid path guiding cavity 4161; when the pressing member 440 is in the second position, the liquid inlet 413 and the liquid outlet 414 are in communication, and the liquid path sealing portion 433 is located outside the liquid inlet 413 and the liquid outlet 414.

Specifically, the second liquid path guiding chamber 4162 is formed by extending from the tail end of the first liquid path guiding chamber 4161 in the vertical direction, the liquid inlet end 413 is communicated with the first liquid path guiding chamber 4161, and the liquid outlet end 414 is communicated with the second liquid path guiding chamber 4162; when the pressing member 440 is in the first position, the liquid path sealing portion 433 is located between the liquid inlet 413 and the liquid outlet 414, and the liquid path sealing portion 433 abuts against the wall of the second liquid path guiding chamber 4162 near the first liquid path guiding chamber 4161, so that the tightness between the liquid inlet 413 and the liquid outlet 414 is good, so as to better close the liquid inlet 413 and the liquid outlet 414, and avoid liquid leakage.

As an example, in order to ensure good liquid tightness of the liquid path needle 431 and the liquid path needle 431 guide chamber 416, a liquid path head end seal ring is sleeved on the head end of the liquid path needle 431, and the outer edge of the liquid path head end seal ring abuts against the chamber wall of the first liquid path guide chamber 4161.

In another aspect, an embodiment of the present utility model further provides an endoscope (not shown) including the cleaning apparatus as in any of the above embodiments, so as to have all the effects of the cleaning apparatus. The endoscope also includes a signal interface located above the spray head 600.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims

1. The controllable gas-liquid cleaning device is characterized by comprising a shell, a liquid pipeline, a gas pipeline, a control valve and a liquid storage bottle; the liquid pipeline is arranged in the shell, two ends of the liquid pipeline are respectively provided with a liquid inlet and a liquid outlet, and the liquid outlet is connected with a spray head; the gas pipeline is arranged in the shell, and the two ends of the gas pipeline respectively form a gas inlet and a gas outlet; the gas pipeline at least partially extends in the liquid pipeline, and a liquid circulation cavity is reserved between the outer wall of the gas pipeline and the inner wall of the liquid pipeline; the control valve is arranged in the shell and is used for controlling the opening and blocking of the liquid pipeline and/or the gas pipeline; the liquid storage bottle is detachably connected to the shell, and a liquid inlet of the liquid pipeline is arranged in the liquid storage bottle.

2. The controllable gas-liquid cleaning apparatus of claim 1, further comprising an adapter mounted on the housing and extending out of the housing; the adapter communicates with the gas inlet of the gas conduit.

3. The controllable gas-liquid cleaning apparatus according to claim 1, wherein the housing comprises a hand-held portion and a cleaning portion, the hand-held portion being connected to the cleaning portion, the gas inlet being provided at an end of the hand-held portion remote from the cleaning portion, the control valve being provided in the hand-held portion; the liquid storage bottle is detachably connected with the cleaning part, and the spray head is connected with one end, far away from the handheld part, of the cleaning part.

4. The controllable gas-liquid cleaning device according to claim 1, wherein the control valve comprises a valve mounting seat, a gas path elastic needle valve assembly, a liquid path elastic needle valve assembly, a three-way valve and a pressing piece, and the valve mounting seat is provided with a gas inlet end, a gas outlet end, a liquid inlet end and a liquid outlet end;

5. The controllable gas-liquid cleaning apparatus of claim 4, further comprising a three-way valve comprising a first joint, a second joint, and a third joint in communication with one another;

6. The controllable gas-liquid cleaning device according to claim 4, wherein the valve mounting seat is provided with a gas passage needle valve guide cavity and a liquid passage needle valve guide cavity which are not coaxial and are open on the same side; the air inlet end and the air outlet end are respectively communicated with the guide cavity of the air path needle valve; the liquid inlet end and the liquid outlet end are respectively communicated with the liquid path needle valve guide cavity.

7. The controllable gas-liquid cleaning apparatus according to claim 6, wherein the gas path elastic needle valve assembly is slidably fitted in the gas path needle valve guide chamber, and the pressing member controls the gas path elastic needle valve assembly to slide along the gas path needle valve guide chamber to close or communicate the gas inlet end and the gas outlet end;

8. The controllable gas-liquid cleaning apparatus according to claim 7, wherein the gas path needle valve guide chamber comprises a first gas path guide chamber having an opening at one side and a second gas path guide chamber extending in a vertical direction from a rear end of the first gas path guide chamber, the gas outlet end being in communication with the first gas path guide chamber, the gas inlet end being in communication with the second gas path guide chamber; the air passage elastic needle valve assembly comprises an air passage needle valve, an air passage elastic member which is in butt joint with the air passage needle valve, and an air passage sealing part which extends outwards from the air passage needle valve, wherein the air passage elastic member is arranged on one side of the second air passage guide cavity, which is far away from the first air passage guide cavity, the head end of the air passage needle valve extends out of an opening of the first air passage guide cavity to be in butt joint with the pressing member, and the tail end of the air passage needle valve is in butt joint with the air passage elastic member; the gas path sealing part is positioned in the second gas path guiding cavity, and the outer edge of the gas path sealing part is abutted with the cavity wall of the second gas path guiding cavity; when the pressing piece is positioned at the first position, the air inlet end and the air outlet end are closed, the air passage sealing part is positioned between the air inlet end and the air outlet end, and the air passage sealing part is abutted with the cavity wall, close to the first air passage guiding cavity, of the second air passage guiding cavity; when the pressing piece is positioned at the second position, the air inlet end is communicated with the air outlet end, and the air path sealing part is positioned outside the air inlet end and the air outlet end.

9. The controllable gas-liquid cleaning apparatus according to claim 7, wherein the liquid path needle valve guide chamber includes a first liquid path guide chamber having one side opened and a second liquid path guide chamber extending in a vertical direction from a rear end of the first liquid path guide chamber, the liquid inlet end is communicated with the first liquid path guide chamber, and the liquid outlet end is communicated with the second liquid path guide chamber; the liquid path elastic needle valve assembly comprises a liquid path needle valve, a liquid path elastic member which is in butt joint with the liquid path needle valve, and a liquid path sealing part which extends outwards from the liquid path needle valve, wherein the liquid path elastic member is arranged on one side of the second liquid path guide cavity, which is far away from the first liquid path guide cavity, the head end of the liquid path needle valve extends out of the opening of the first liquid path guide cavity, and the tail end of the liquid path needle valve is in butt joint with the liquid path elastic member; the liquid path sealing part is positioned in the second liquid path guiding cavity, and the outer edge of the liquid path sealing part is abutted with the cavity wall of the second liquid path guiding cavity; when the pressing piece is positioned at the first position, the liquid inlet end and the liquid outlet end are closed, the liquid path sealing part is positioned between the liquid inlet end and the liquid outlet end, and the liquid path sealing part is abutted against the cavity wall of the second liquid path guiding cavity, which is close to the first liquid path guiding cavity; when the pressing piece is positioned at the second position, the liquid inlet end is communicated with the liquid outlet end, and the liquid path sealing part is positioned outside the liquid inlet end and the liquid outlet end.

10. An endoscope comprising a controllable gas-liquid cleaning apparatus according to any one of claims 1 to 9.