Cleaning equipment and endoscope

Abstract

The present invention discloses a cleaning device and an endoscope. The cleaning device comprises a deformable coil assembly and a valve assembly. A nozzle is arranged at one end of the deformable coil assembly, a liquid inlet and an air inlet are arranged at the other end of the deformable coil assembly, a gas-liquid mixing part is arranged in the deformable coil assembly, the liquid inlet and the air inlet are connected to the nozzle via the gas-liquid mixing part, the valve assembly comprises a liquid inlet end, an air inlet end, a liquid outlet end and an air outlet end, the liquid outlet end is connected to the liquid inlet of the deformable coil assembly, the air outlet end is connected to the air inlet of the deformable coil assembly, and the valve assembly can be switched between an initial state and a working state. When the valve assembly is in the initial state, the liquid inlet end and the air inlet end are closed; when the valve assembly is in the working state, the liquid inlet end is connected to the liquid outlet end, and the air inlet end is connected to the air outlet end. The cleaning device provided by the present invention can solve the problem of dripping in the existing cleaning equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial endoscopes, and in particular to a cleaning device and an endoscope. Background Art

[0002] With the development of social industrialization, electronic endoscopes equipped with camera elements are not only widely used in the medical field, but also used in industrial equipment cleaning, metal flaw detection and industrial equipment maintenance, such as turbine cleaning, detection of internal and external corrosion conditions of pipelines, pipeline blockage inspection, etc.

[0003] Existing endoscopes are usually equipped with a deformable coil and a cleaning device. A camera is provided at the front end of the deformable coil. The camera is sent into the interior of the industrial equipment to be cleaned by using the deformable coil to determine the part of the equipment that needs to be cleaned. However, after using the endoscope to clean the industrial equipment, the cleaning liquid flow channel is prone to dripping. Summary of the invention

[0004] In view of the problem that liquid dripping occurs during use of existing endoscope cleaning equipment, the present invention provides a cleaning equipment and an endoscope.

[0005] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0006] On the one hand, the present invention provides a cleaning device, including a deformable coiled tube assembly and a valve assembly, wherein a nozzle is provided at one end of the deformable coiled tube assembly, and a liquid inlet and an air inlet are provided at the other end of the deformable coiled tube assembly, and a gas-liquid mixing part is provided in the deformable coiled tube assembly, and the liquid inlet and the air inlet are connected to the nozzle via the gas-liquid mixing part, and the valve assembly includes a liquid inlet end, an air inlet end, a liquid outlet end and an air outlet end, the liquid outlet end is connected to the liquid inlet of the deformable coiled tube assembly, and the air outlet end is connected to the air inlet of the deformable coiled tube assembly, and the valve assembly can be switched between an initial state and a working state, and when the valve assembly is in the initial state, the liquid inlet end and the air inlet end are closed; when the valve assembly is in the working state, the liquid inlet end is connected to the liquid outlet end, and the air inlet end is connected to the air outlet end.

[0007] Optionally, the valve assembly includes a mounting shell, a needle valve assembly and a pressing piece, the needle valve assembly is mounted in the mounting shell, the pressing piece is rotatably connected to the mounting shell and is connected to the needle valve assembly, and is used to move the needle valve assembly so that the liquid inlet end is connected to the liquid outlet end, and the air inlet end is connected to the air outlet end.

[0008] Optionally, the needle valve assembly includes a needle valve, a needle valve seat, a first sealing ring, a second sealing ring and a third sealing ring, a guide cavity with an opening on one side is provided in the mounting shell, the needle valve seat is connected to the opening position of the guide cavity, the needle valve seat is provided with a through hole, the needle valve can be slidably arranged in the guide cavity between a first position and a second position, and the head end of the needle valve passes through the through hole and abuts against the pressing member, the first sealing ring, the second sealing ring and the third sealing ring are sequentially sleeved on the needle valve at intervals, the outer edges of the first sealing ring and the second sealing ring abut against the inner wall of the guide cavity, the liquid inlet end, the liquid outlet end, the air outlet end and the air inlet end are arranged along one side of the needle valve The sliding direction is arranged on the outer wall of the guide cavity at intervals in sequence. When the valve assembly is in an initial state, the needle valve is located in a first position, the first sealing ring is located between the liquid inlet end and the liquid outlet end so that the liquid inlet end and the liquid outlet end are closed to each other, the third sealing ring is located between the gas outlet end and the gas inlet end, and the outer edge of the third sealing ring abuts against the needle valve seat so that the gas outlet end and the gas inlet end are closed to each other. When the valve assembly is in a working state, the needle valve is located in a second position, the second sealing ring is located between the liquid outlet end and the gas outlet end so that the liquid outlet end and the gas outlet end are closed to each other, the liquid inlet end is connected to the liquid outlet end, and the gas inlet end is connected to the gas outlet end.

[0009] Optionally, the needle valve is provided with a first annular groove and a second annular groove, the first sealing ring, the first annular groove, the second sealing ring and the second annular groove are arranged in sequence, the third sealing ring is located in the second annular groove, and when the valve assembly is in a working state, the first annular groove is located between the liquid inlet end and the liquid outlet end and connects the liquid inlet end and the liquid outlet end at the same time, and the second annular groove is located between the gas outlet end and the gas inlet end and connects the gas outlet end and the gas inlet end at the same time.

[0010] Optionally, the needle valve assembly further comprises an elastic member, one end of the elastic member abuts against the needle valve, and the other end of the elastic member abuts against the inner wall of the guide cavity.

[0011] Optionally, the pressing member is a wrench.

[0012] Optionally, the cleaning device also includes a three-way valve assembly, a first air pipe and a first liquid pipe, the deformable coil assembly includes a second air pipe and a second liquid pipe, one end of the first air pipe is connected to the air outlet end, the other end of the first air pipe is connected to the first end of the three-way valve assembly, one end of the first liquid pipe is connected to the liquid outlet end, the other end of the first liquid pipe is connected to the second end of the three-way valve assembly, one end of the second liquid pipe is connected to the nozzle, and the other end of the second liquid pipe is connected to the third end of the three-way valve assembly, the second air pipe is located inside the second liquid pipe, and one end of the second air pipe extends into the three-way valve assembly and connects to the first air pipe, the first air pipe and the second air pipe are connected to each other to form a gas flow channel, a liquid guide cavity is formed between the outer wall of the second liquid pipe and the inner wall of the second air pipe, the first liquid pipe, the inner cavity of the three-way valve assembly and the liquid guide cavity are connected to each other to form a liquid flow channel, the other end of the second air pipe is located in the second liquid pipe, and the gas flow channel and the liquid flow channel are connected at the other end of the second air pipe to form the gas-liquid mixing part.

[0013] Optionally, the three-way valve assembly includes a three-way pipe, a first air pipe joint, a first liquid pipe joint and a second air pipe joint, the first end of the three-way pipe is connected to the first air pipe joint, the second end of the three-way pipe is connected to the first liquid pipe joint, the first end of the three-way pipe is connected to the second liquid pipe joint, and the first air pipe joint is connected to the first air pipe, the first liquid pipe joint is connected to the first liquid pipe, the second liquid pipe joint is connected to the second liquid pipe, the second air pipe is located inside the second liquid pipe, and the second air pipe extends into the second liquid pipe joint, the three-way pipe and the first air pipe joint are connected to the first air pipe.

[0014] Optionally, the cleaning equipment also includes a liquid storage bottle and a high-pressure air pipe, the liquid storage bottle includes a bottle body and a bottle cap, the bottle cap is provided with a liquid suction tube extending into the bottle body, the liquid suction tube is connected to the liquid inlet end, and the high-pressure air pipe is connected to the air inlet end.

[0015] In another aspect, the present invention provides an endoscope comprising the cleaning device as described above.

[0016] In a cleaning device provided by the present invention, a nozzle is arranged at one end of a deformable coiled tube assembly, a liquid inlet and an air inlet are arranged at the other end of the deformable coiled tube assembly, a gas-liquid mixing portion is arranged in the deformable coiled tube assembly, the liquid inlet and the air inlet are connected to the nozzle via the gas-liquid mixing portion, the valve assembly comprises a liquid inlet end, an air inlet end, a liquid outlet end and an air outlet end, the liquid outlet end is connected to the liquid inlet of the deformable coiled tube assembly, the air outlet end is connected to the air inlet of the deformable coiled tube assembly, and the valve assembly can be switched between an initial state and a working state, so that when the valve assembly is in a working state, the liquid inlet end is connected to the liquid outlet end, and the air inlet end is connected to the air outlet end, at this time, high-pressure gas is input into the air inlet end, and the high-pressure gas enters the deformable coiled tube assembly through the air inlet end, the air outlet end and the air inlet. The deformable coil assembly, since the liquid inlet and the air inlet are connected to the nozzle via the gas-liquid mixing part, there is a negative pressure in the gas-liquid mixing part of the deformable coil assembly relative to the liquid inlet end. Therefore, according to the siphon principle, it can be known that the negative pressure in the gas-liquid mixing part causes the cleaning liquid to flow into the liquid inlet end and the liquid outlet end, enter the deformable coil assembly, flow to the gas-liquid mixing part, and the cleaning liquid is mixed with the high-pressure gas in the gas-liquid mixing part, and cleans the industrial equipment through the nozzle; when the valve assembly is in the initial state, the liquid inlet end and the air inlet end are closed, then the high-pressure gas is stopped from entering the valve assembly, and the cleaning liquid is stopped from entering the liquid inlet end. At this time, since the liquid inlet end and the air inlet end are closed, the cleaning liquid will not automatically enter the liquid inlet end to cause dripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 is a schematic diagram of an initial state of a valve assembly 20 in one embodiment of the present invention;

[0019] Figure 2 yes Figure 1 An enlarged view of the middle needle valve assembly 26;

[0020] Figure 3 is a schematic diagram of the working state of the valve assembly 20 in one embodiment of the present invention;

[0021] Figure 4 yes Figure 3 An enlarged view of the middle needle valve assembly 26;

[0022] Figure 5 yes Figure 3 an enlarged view of the middle three-way valve assembly 70;

[0023] Figure 6 yes Figure 3 Enlarged view of part A.

[0024] The reference numerals in the drawings of the specification are as follows:

[0025] 10. Deformable coil assembly; 11. Nozzle; 12. Liquid inlet; 13. Air inlet; 14. Gas-liquid mixing part; 15. Second air pipe; 16. Second liquid pipe; 17. Gas flow channel; 18. Liquid flow channel; 19. Liquid guide cavity;

[0026] 20. Valve assembly; 21. Liquid inlet end; 22. Air inlet end; 23. Liquid outlet end; 24. Air outlet end; 25. Mounting housing; 250. Guide cavity; 26. Needle valve assembly; 260. Needle valve; 2601. First annular groove; 2602. Second annular groove; 2603. Accommodating cavity; 261. First sealing ring; 262. Second sealing ring; 263. Third sealing ring; 264. Needle valve seat; 2641. Through hole; 27. Pressing member; 28. Elastic member;

[0027] 30. First trachea;

[0028] 40. First liquid pipe;

[0029] 50. Liquid storage bottle; 51. Bottle body; 52. Bottle cap; 53. Pipette;

[0030] 60. High pressure air pipe;

[0031] 70. Three-way valve assembly; 71. First air pipe joint; 72. Second air pipe joint; 73. First liquid pipe joint; 74. Three-way pipe. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1-Figure 6 As shown, the present invention provides a cleaning device, including a deformable coil assembly 10 and a valve assembly 20. A nozzle 11 is provided at one end of the deformable coil assembly 10, and a liquid inlet 12 and an air inlet 13 are provided at the other end of the deformable coil assembly 10. A gas-liquid mixing part 14 is provided in the deformable coil assembly 10. The liquid inlet 12 and the air inlet 13 are connected to the nozzle 11 via the gas-liquid mixing part 14. The valve assembly 20 includes a liquid inlet end 21, an air inlet end 22, a liquid outlet end 23 and an air outlet end 24. The liquid outlet end 23 is connected to the liquid inlet 12 of the deformable coil assembly 10, and the air outlet end 24 is connected to the air inlet 13 of the deformable coil assembly 10. The valve assembly 20 can be switched between an initial state and a working state. When the valve assembly 20 is in the initial state, the liquid inlet end 21 and the air inlet end 22 are closed; when the valve assembly 20 is in the working state, the liquid inlet end 21 is connected to the liquid outlet end 23, and the air inlet end 22 is connected to the air outlet end 24.

[0036] like Figure 1-Figure 6 As shown, in this example, the liquid inlet end 21 is used to receive input cleaning liquid, and the gas inlet end 22 is used to receive input high-pressure gas.

[0037] A nozzle 11 is provided at one end of the deformable coil assembly 10, and a liquid inlet 12 and an air inlet 13 are provided at the other end of the deformable coil assembly 10. A gas-liquid mixing portion 14 is provided in the deformable coil assembly 10, and the liquid inlet 12 and the air inlet 13 are connected to the nozzle 11 via the gas-liquid mixing portion 14. The valve assembly 20 includes a liquid inlet end 21, an air inlet end 22, a liquid outlet end 23 and an air outlet end 24. The liquid outlet end 23 is connected to the liquid inlet 12 of the deformable coil assembly 10, and the air outlet end 24 is connected to the air inlet 13 of the deformable coil assembly 10. The valve assembly 20 can be switched between an initial state and a working state. Therefore, when the valve assembly 20 is in a working state, the liquid inlet end 21 is connected to the liquid outlet end 23, and the air inlet end 22 is connected to the air outlet end 24. At this time, high-pressure gas is input into the air inlet end 22, and the high-pressure gas enters through the air inlet end 22, the air outlet end 24 and the air inlet 13 The deformable coil assembly 10, since the liquid inlet 12 and the air inlet 13 are connected to the nozzle 11 via the gas-liquid mixing section 14, there is a negative pressure in the gas-liquid mixing section 14 of the deformable coil assembly 10 relative to the liquid inlet end 21. Therefore, according to the siphon principle, it can be known that the negative pressure in the gas-liquid mixing section 14 causes the cleaning liquid to flow into the liquid inlet end 21, the liquid outlet end 23 and the liquid inlet 12 into the deformable coil assembly 10, flow to the gas-liquid mixing section 14, and the cleaning liquid is mixed with the high-pressure gas in the gas-liquid mixing section 14, and the industrial equipment is cleaned through the nozzle 11; when the valve assembly 20 is in the initial state, the liquid inlet end 21 and the air inlet end 22 are closed, then the high-pressure gas is stopped from entering the valve assembly 20, and the cleaning liquid is stopped from entering the liquid inlet end 21. At this time, since the liquid inlet end 21 and the air inlet end 22 are closed, the cleaning liquid will not automatically enter the liquid inlet end 21 to cause dripping.

[0038] In one embodiment, if Figure 1 and Figure 3 As shown, the valve assembly 20 includes a mounting shell 25, a needle valve assembly 26 and a pressing piece 27. The needle valve assembly 26 is mounted in the mounting shell 25. The pressing piece 27 is rotatably connected to the mounting shell 25 and is connected to the needle valve assembly 26 for moving the needle valve assembly 26 so that the liquid inlet end 21 is connected to the liquid outlet end 23 and the air inlet end 22 is connected to the air outlet end 24.

[0039] As an example, the pressing member 27 is rotatably connected to the mounting housing 25 and is connected to the needle valve assembly 26, so that the pressing member 27 is used to control the valve assembly 20 to switch between the initial state and the working state. Specifically, by pressing the pressing member 27, the valve assembly 20 enters the working state, and the needle valve assembly 26 moves to connect the liquid inlet end 21 to the liquid outlet end 23, and connect the gas inlet end 22 to the gas outlet end 24. When the pressing member 27 is released, the valve assembly 20 enters the initial state, the needle valve assembly 26 is reset, and the liquid inlet end 21 and the gas inlet end 22 are closed. The needle valve assembly 26 is used to control the closing of the liquid inlet end 21 and the gas inlet end 22, which has a simple structure and strong feasibility, and can effectively solve the problem of dripping at the liquid inlet end 21.

[0040] In one embodiment, if Figure 2 and Figure 4 As shown, the needle valve assembly 26 includes a needle valve 260, a needle valve seat 264, a first sealing ring 261, a second sealing ring 262 and a third sealing ring 263. A guide cavity 250 with an opening on one side is provided in the mounting housing 25. The needle valve seat 264 is connected to the opening position of the guide cavity 250. The needle valve seat 264 is provided with a through hole 2641. The needle valve 260 can be slidably arranged in the guide cavity 250 between the first position and the second position. The head end of the needle valve 260 passes through the through hole 2641 and abuts against the pressing member 27. The first sealing ring 261, the second sealing ring 262 and the third sealing ring 263 are sequentially sleeved on the needle valve 260 at intervals. The outer edges of the first sealing ring 261 and the second sealing ring 262 abut against the inner wall of the guide cavity 250. The liquid inlet end 21, the liquid outlet end 23 and the gas outlet end 24 The needle valve 260 and the air inlet end 22 are arranged on the outer wall of the guide cavity 250 in sequence and at intervals along a sliding direction of the needle valve 260. When the valve assembly 20 is in an initial state, the needle valve 260 is located in a first position, the first sealing ring 261 is located between the liquid inlet end 21 and the liquid outlet end 23 to seal the liquid inlet end 21 and the liquid outlet end 23 to each other, the third sealing ring 263 is located between the air outlet end 24 and the air inlet end 22, and the outer edge of the third sealing ring 263 abuts the needle valve seat 264 to seal the air outlet end 24 and the air inlet end 22 to each other. When the valve assembly 20 is in a working state, the needle valve 260 is located in a second position, the second sealing ring 262 is located between the liquid outlet end 23 and the air outlet end 24 to seal the liquid outlet end 23 and the air outlet end 24 to each other, the liquid inlet end 21 is connected to the liquid outlet end 23, and the air inlet end 22 is connected to the air outlet end 24.

[0041] As an example, when the valve assembly 20 is in the initial state, the needle valve 260 is located in the first position, and the first sealing ring 261 is used to seal the liquid inlet 21 and the liquid outlet 23, and the third sealing ring 263 is used to seal the gas outlet 24 and the gas inlet 22, so as to ensure good sealing performance and avoid dripping at the liquid inlet 21. When the valve assembly 20 is in the working state, the needle valve 260 is located in the second position, and the second sealing ring 262 is used to seal the liquid outlet 23 and the gas outlet 24. It can be understood that in order to ensure good sealing performance between the liquid outlet 23 and the gas outlet 24 and avoid communication between the liquid outlet 23 and the gas outlet 24, the second sealing ring 262 is provided to ensure that the liquid outlet 23 and the gas outlet 24 are sealed to each other in the working state, and to ensure that negative pressure occurs in the gas-liquid mixing part 14, so that the cleaning liquid can enter the liquid inlet 21 by using the siphon principle, and ensure that the cleaning equipment can work normally.

[0042] In one embodiment, if Figure 2 and Figure 4As shown, the needle valve 260 is provided with a first annular groove 2601 and a second annular groove 2602, the first sealing ring 261, the first annular groove 2601, the second sealing ring 262 and the second annular groove 2602 are arranged in sequence, and the third sealing ring 263 is located in the second annular groove 2602. When the valve assembly 20 is in a working state, the first annular groove 2601 is located between the liquid inlet end 21 and the liquid outlet end 23 and simultaneously connects the liquid inlet end 21 and the liquid outlet end 23, and the second annular groove 2602 is located between the air outlet end 24 and the air inlet end 22 and simultaneously connects the air outlet end 24 and the air inlet end 22.

[0043] Specifically, when the valve assembly 20 is in a working state, the second annular groove 2602 is used to connect the gas outlet end 24 and the gas inlet end 22, and the first annular groove 2601 is used to connect the liquid outlet end 23 and the liquid inlet end 21. The second annular groove 2602 is used to allow high-pressure gas to be output from the gas inlet end 22 to the gas outlet end 24, and then enter the gas inlet 13 and the gas-liquid mixing part 14 of the deformable coil assembly 10. Since the liquid inlet 12 and the gas inlet 13 are connected to the nozzle 11 via the gas-liquid mixing part 14, there is a negative pressure in the gas-liquid mixing part 14 of the deformable coil assembly 10 relative to the liquid inlet end 21. The siphon principle is used to allow the cleaning liquid to flow into the liquid inlet end 21 and enter the liquid outlet end 23 and the liquid inlet 12 through the first annular groove 2601, thereby entering the deformable coil assembly 10 and flowing to the gas-liquid mixing part 14. The cleaning liquid is mixed with the high-pressure gas in the gas-liquid mixing part 14 and cleans the industrial equipment through the nozzle 11.

[0044] In one embodiment, if Figure 2 and Figure 4 As shown, the needle valve assembly 26 further includes an elastic member 28 , one end of the elastic member 28 abuts against the needle valve 260 , and the other end of the elastic member 28 abuts against the inner wall of the guide cavity 250 .

[0045] Specifically, the tail end of the needle valve 260 away from the needle valve seat 264 is provided with a receiving chamber 2603 with one side open, and the receiving chamber 2603 is used to receive the elastic member 28, one end of the elastic member 28 abuts against the needle valve 260, and the other end of the elastic member 28 abuts against the inner wall of the guide chamber 250. When the pressing member 27 is pressed, the elastic member 28 is compressed, and the needle valve assembly 26 moves from the first position to the second position. At this time, the liquid inlet end 21 is connected to the liquid outlet end 23 through the first annular groove 2601, and the gas inlet end 22 is connected to the gas outlet end 24 through the second annular groove 2602, so that the high-pressure gas enters the gas-liquid mixing part 14, and then drives the cleaning liquid gas-liquid mixing part 14, so as to clean the industrial equipment. When the pressing member 27 is released, the elastic member 28 is reset, and the second position of the needle valve assembly 26 moves to the first position, and the liquid inlet end 21 and the gas inlet end 22 are closed to prevent the liquid inlet end 21 from dripping.

[0046] In one embodiment, the pressing member 27 is a wrench.

[0047] Specifically, a first mounting hole is provided on the mounting shell 25 , a second mounting hole is provided on the wrench, and a pin passes through the first mounting hole and the second mounting hole to connect the mounting shell 25 and the wrench, so that the wrench is rotatably connected to the mounting shell 25 .

[0048] In one embodiment, if Figure 6 As shown, the cleaning device also includes a three-way valve assembly 70, a first air pipe 30 and a first liquid pipe 40, the deformable coil assembly 10 includes a second air pipe 15 and a second liquid pipe 16, one end of the first air pipe 30 is connected to the air outlet end 24, the other end of the first air pipe 30 is connected to the first end of the three-way valve assembly 70 and the second end of the three-way valve assembly 70, one end of the second liquid pipe 16 is connected to the nozzle 11, the other end of the second liquid pipe 16 is connected to the third end of the three-way valve assembly 70, the second air pipe 15 is located inside the second liquid pipe 16, and the second One end of the air pipe 15 extends into the three-way valve assembly 70 and is connected to the first air pipe 30. The first air pipe 30 and the second air pipe 15 are connected to each other to form a gas flow channel 17. A liquid guide cavity 19 is formed between the outer wall of the second liquid pipe 16 and the inner wall of the second air pipe 15. The first liquid pipe 40, the inner cavity of the three-way valve assembly 70 and the liquid guide cavity 19 are connected to each other to form a liquid flow channel 18. The other end of the second air pipe 15 is located in the second liquid pipe 16. The gas flow channel 17 and the liquid flow channel 18 are connected at the other end of the second air pipe 15 to form a gas-liquid mixing part 14.

[0049] Specifically, the gas flow channel 17 and the liquid flow channel 18 are connected at the other end of the second gas pipe 15 to form a gas-liquid mixing section 14, so that high-pressure gas flows into the gas-liquid mixing section 14 through the gas flow channel 17, so that there is a negative pressure in the gas-liquid mixing section 14, and the cleaning liquid flows into the gas-liquid mixing section 14, so that the industrial equipment can be cleaned by the nozzle 11, and because the deformable coiled tube assembly 10 includes the second gas pipe 15 and the second liquid pipe 16, the length of the deformable coiled tube assembly 10 can be changed, so that different industrial equipment can be cleaned.

[0050] In one embodiment, if Figure 5 As shown, the three-way valve assembly 70 includes a three-way pipe 74, a first air pipe joint 71, a first liquid pipe joint 73 and a second air pipe joint 72, the first end of the three-way pipe 74 is connected to the first air pipe joint 71, the second end of the three-way pipe 74 is connected to the first liquid pipe joint 73, the first end of the three-way pipe 74 is connected to the second liquid pipe 16 joint, and the first air pipe joint 71 is connected to the first air pipe 30, the first liquid pipe joint 73 is connected to the first liquid pipe 40, the second liquid pipe 16 joint is connected to the second liquid pipe 16, the second air pipe 15 is located inside the second liquid pipe 16, and the second air pipe 15 extends into the second liquid pipe 16 joint, the three-way pipe 74 and the first air pipe joint 71 to communicate with the first air pipe 30.

[0051] The three-way valve assembly 70 is used to connect the first air pipe 30 and the second air pipe 15, that is, the first liquid pipe 40 and the second liquid pipe 16, so that the cleaning device has a high degree of integration.

[0052] In one embodiment, if Figure 1 and Figure 3 As shown, the cleaning device also includes a liquid storage bottle 50 and a high-pressure air pipe 60. The liquid storage bottle 50 includes a bottle body 51 and a bottle cap 52. The bottle cap 52 is provided with a liquid suction pipe 53 extending into the bottle body 51. The liquid suction pipe 53 is connected to the liquid inlet end 21, and the high-pressure air pipe 60 is connected to the air inlet end 22.

[0053] Specifically, the cleaning device further includes a first liquid guide tube, a second liquid guide tube and an adapter, one end of the liquid pipette 53 extends into the liquid storage bottle 50 and contacts the cleaning liquid in the liquid storage bottle 50, the other end of the liquid pipette 53 is connected to the first liquid guide tube, the first liquid guide tube and the second liquid guide tube are connected through the adapter, and the other end of the second liquid guide tube is connected to the liquid inlet end 21. When it is necessary to clean the industrial equipment, high-pressure gas is input into the gas inlet end 22, and negative pressure is formed in the gas-liquid mixing part 14, so that the cleaning liquid in the liquid storage bottle 50 flows into the liquid inlet end 21 and flows to the gas-liquid mixing part 14, so as to clean the industrial equipment through the nozzle 11.

[0054] In another aspect, the present invention provides an endoscope comprising the cleaning device as described above.

[0055] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A cleaning device, characterized in that: The condenser valve assembly comprises a deformable coiled tube assembly and a valve assembly, wherein a nozzle is arranged at one end of the deformable coiled tube assembly, a liquid inlet and an air inlet are arranged at the other end of the deformable coiled tube assembly, a gas-liquid mixing portion is arranged in the deformable coiled tube assembly, the liquid inlet and the air inlet are connected to the nozzle via the gas-liquid mixing portion, the valve assembly comprises a liquid inlet end, an air inlet end, a liquid outlet end, an air outlet end, a mounting shell, a needle valve assembly and a pressing piece; the cleaning device also comprises a three-way valve assembly, a first air pipe and a first liquid pipe, the deformable coiled tube assembly comprises a second air pipe and a second liquid pipe, one end of the first air pipe is connected to the air outlet end, the other end of the first air pipe is connected to the first end of the three-way valve assembly, one end of the first liquid pipe is connected to the liquid outlet end, the other end of the first liquid pipe is connected to the second end of the three-way valve assembly, one end of the second liquid pipe is connected to the nozzle, the other end of the second liquid pipe is connected to the third end of the three-way valve assembly, and the second air pipe is located at the The second air pipe is inside the second liquid pipe, and one end of the second air pipe extends into the three-way valve assembly and is connected to the first air pipe, the first air pipe and the second air pipe are connected to each other to form a gas flow channel, a liquid guide cavity is formed between the outer wall of the second liquid pipe and the inner wall of the second air pipe, the first liquid pipe, the inner cavity of the three-way valve assembly and the liquid guide cavity are connected to each other to form a liquid flow channel, the other end of the second air pipe is located in the second liquid pipe, and the gas flow channel and the liquid flow channel are connected at the other end of the second air pipe to form the gas-liquid mixing part; the valve assembly can be switched between an initial state and a working state, when the valve assembly is in the initial state, the liquid inlet end and the air inlet end are closed; when the valve assembly is in the working state, the needle valve assembly is installed in the mounting shell, the pressing member is rotatably connected to the mounting shell, and is connected to the needle valve assembly, which is used to move the needle valve assembly so that the liquid inlet end is connected to the liquid outlet end, and the air inlet end is connected to the air outlet end.

2. The cleaning device according to claim 1, characterized in that: The needle valve assembly comprises a needle valve, a needle valve seat, a first sealing ring, a second sealing ring and a third sealing ring. A guide cavity with an opening on one side is arranged in the mounting housing. The needle valve seat is connected to the opening position of the guide cavity. The needle valve seat is provided with a through hole. The needle valve can be arranged in the guide cavity to slide back and forth between a first position and a second position, and the head end of the needle valve passes through the through hole and abuts against the pressing member. The first sealing ring, the second sealing ring and the third sealing ring are sleeved on the needle valve in sequence and at intervals. The outer edges of the first sealing ring and the second sealing ring abut against the inner wall of the guide cavity. The liquid inlet end, the liquid outlet end, the gas outlet end and the gas inlet end slide along one side of the needle valve. The needle valve is located at a first position, the first sealing ring is located between the liquid inlet end and the liquid outlet end so that the liquid inlet end and the liquid outlet end are sealed to each other, the third sealing ring is located between the gas outlet end and the gas inlet end, and the outer edge of the third sealing ring abuts against the needle valve seat so that the gas outlet end and the gas inlet end are sealed to each other, and when the valve assembly is in a working state, the needle valve is located at a second position, the second sealing ring is located between the liquid outlet end and the gas outlet end so that the liquid outlet end and the gas outlet end are sealed to each other, the liquid inlet end is connected to the liquid outlet end, and the gas inlet end is connected to the gas outlet end.

3. The cleaning device according to claim 2, characterized in that: The needle valve is provided with a first annular groove and a second annular groove, the first sealing ring, the first annular groove, the second sealing ring and the second annular groove are arranged in sequence, the third sealing ring is located in the second annular groove, and when the valve assembly is in a working state, the first annular groove is located between the liquid inlet end and the liquid outlet end and is connected to the liquid inlet end and the liquid outlet end at the same time, and the second annular groove is located between the gas outlet end and the gas inlet end and is connected to the gas outlet end and the gas inlet end at the same time.

4. The cleaning device according to claim 2, characterized in that: The needle valve assembly further comprises an elastic member, one end of which abuts against the needle valve, and the other end of which abuts against the inner wall of the guide cavity.

5. The cleaning device according to claim 1, characterized in that: The pressing piece is a wrench.

6. The cleaning device according to claim 1, characterized in that: The three-way valve assembly includes a three-way pipe, a first air pipe joint, a first liquid pipe joint and a second air pipe joint. The first end of the three-way pipe is connected to the first air pipe joint, the second end of the three-way pipe is connected to the first liquid pipe joint, the first end of the three-way pipe is connected to the second liquid pipe joint, and the first air pipe joint is connected to the first air pipe, the first liquid pipe joint is connected to the first liquid pipe, the second liquid pipe joint is connected to the second liquid pipe, the second air pipe is located inside the second liquid pipe, and the second air pipe extends into the second liquid pipe joint, the three-way pipe and the first air pipe joint are connected to the first air pipe.

7. The cleaning device according to claim 1, characterized in that: The cleaning device also includes a liquid storage bottle and a high-pressure air pipe. The liquid storage bottle includes a bottle body and a bottle cap. The bottle cap is provided with a liquid suction tube extending into the bottle body. The liquid suction tube is connected to the liquid inlet end, and the high-pressure air pipe is connected to the air inlet end.

8. An endoscope, characterized in that: Comprising the cleaning device as described in any one of claims 1-7.

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