A valve structure for an endoscope water supply pipeline

Abstract

The present invention provides a valve structure for an endoscope water supply pipeline, belonging to the technical field of endoscopes. It solves the problem that the existing one-way valve of an endoscope cannot realize the dual functions of one-way and straight-through. The valve structure of the endoscope water supply pipeline includes a valve body and a valve cover, a valve cavity is provided between the valve body and the valve cover, a water inlet connected to the valve cavity is provided on the valve cover, a water outlet connected to the valve cavity is provided on the valve body, a partition is provided in the valve cavity for dividing the valve cavity into a water inlet cavity and a water outlet cavity, the water inlet is connected to the water inlet cavity, the water outlet is connected to the water outlet cavity, a channel 1 and a channel 2 for connecting the water inlet cavity and the water outlet cavity are provided on the partition, a one-way check component is provided at the first channel, and an adjustable component for controlling the opening and closing of the second channel is provided at the second channel. The present invention can realize the functions of one-way and straight-through, and has the advantages of convenient operation, easy implementation and promotion, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of endoscopes and relates to a valve structure of an endoscope water supply pipeline. Background Art

[0002] An electronic endoscope is a device with a slender flexible insertion portion and a camera device at its front end that can be inserted into the body cavity to obtain images of the intracavitary scene. It can realize real-time output and display of the intracavitary scene image by connecting with other devices in the endoscope system. In the process of using an electronic endoscope to diagnose and operate on patients, gas or liquid will be delivered to the patient's body to assist in the diagnosis and operation. When medical water is delivered to the patient's body to assist in the operation, the medical water is contained in an external water bottle and enters the surgical environment after passing through the water supply pipeline and the electronic endoscope in sequence under the action of a peristaltic pump. A one-way valve is usually set on the water supply pipeline to prevent liquid reflux. Due to the existing structural design, the one-way valve only has a one-way check function. When a straight-through effect is required, another channel can only be set on the device in use, which increases the size of the device and the complexity of the design. Summary of the invention

[0003] The purpose of the present invention is to address the above-mentioned problems in the prior art and to propose a valve structure for an endoscope water supply pipeline that can realize one-way and straight-through operation.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A valve structure for an endoscope water supply pipeline comprises a valve body and a valve cover, a valve cavity is provided between the valve body and the valve cover, a water inlet connected to the valve cavity is provided on the valve cover, a water outlet connected to the valve cavity is provided on the valve body, a partition is provided in the valve cavity for dividing the valve cavity into a water inlet cavity and a water outlet cavity, the water inlet is connected to the water inlet cavity, the water outlet is connected to the water outlet cavity, a channel 1 and a channel 2 for connecting the water inlet cavity and the water outlet cavity are provided on the partition, a one-way check component is provided at the channel 1, and an adjustable component for controlling the on and off of the channel 2 is provided at the channel 2.

[0006] The valve structure of the water supply pipeline of the endoscope has two states: when the adjustable component controls channel two to be disconnected, the water entering from the water inlet enters the water inlet chamber, enters the water outlet chamber through the one-way check component, and is finally discharged through the water outlet. The water in the water outlet chamber cannot enter the water inlet chamber; when the adjustable component controls channel two to be turned on, the water in the water outlet chamber can directly enter the water inlet chamber through channel two.

[0007] In the above-mentioned valve structure of the endoscope water supply pipeline, the one-way check assembly includes a one-way check gasket made of soft material for blocking channel one and a positioning protrusion resting on the one-way check gasket. The one-way check gasket rests on one side of the partition located in the water outlet chamber, and the positioning protrusion is located in the water outlet chamber.

[0008] The one-way check gasket is circular, and in order to achieve a better blocking effect, the outer diameter of the one-way check gasket is larger than the aperture of channel 1. When the adjustable component controls channel 2 to be disconnected, water flows into channel 1 from the water inlet chamber, and the water squeezes the one-way check gasket, causing the one-way check gasket to deform, and a gap is generated between the one-way check gasket and the partition to connect the water outlet chamber and channel 1, and the water flows into the water outlet chamber through the gap; when the water pressure in the water outlet chamber is higher than the water pressure in the water inlet chamber, the water in the water outlet chamber squeezes the one-way check gasket, causing the one-way check gasket to fit tightly against the partition, achieving the purpose of one-way check.

[0009] In the above-mentioned valve structure of the endoscope water supply pipeline, the adjustable component includes an adjusting plate 1 abutting against the partition located on one side of the water inlet chamber, the adjusting plate 1 is provided with a channel 3 for connecting channel 1 with the water inlet chamber, the adjusting plate 1 is provided with a channel 4 and a blocking portion 1, and the valve cover is provided with a driving unit 1 for driving the adjusting plate 1 to rotate / translate, and under the action of the driving unit 1, the channel 4 is connected with the channel 2 or the blocking portion blocks the channel 2.

[0010] The thickness of the regulating plate 1 is smaller than the length of the water inlet chamber, so that water can flow through it easily. Under the action of the driving unit 1, the regulating plate 1 has two states: the channel 2 is connected with the channel 4, and the water in the water outlet chamber can enter the water inlet chamber through the channel 2 and the channel 4 in sequence; the blocking part blocks the channel 2, and the water in the water outlet chamber cannot enter the water inlet chamber.

[0011] In the above-mentioned valve structure of the endoscope water supply pipeline, the adjustment plate 1 is circular and its outer diameter is equal to the inner diameter of the water inlet chamber, the driving unit 1 includes an adjustment column 1 vertically arranged on the adjustment plate 1 and a guide groove 1 arranged on the valve cover, the adjustment column 1 passes through the guide groove 1, when the adjustment column 1 moves to one end of the guide groove 1, the channel 4 is connected with the channel 2, when the adjustment column 1 moves to the other end of the guide groove 1, the blocking part blocks the channel 2, the adjustment plate 1 is provided with a leak-proof part 1 abutting against the valve cover for always blocking the guide groove 1, and the adjustment column 1 is arranged on the leak-proof part 1.

[0012] The guide groove 1 is arc-shaped. When the adjustment column 1 is moved in the guide groove 1, the adjustment plate 1 will be driven to rotate along its own central axis in the water inlet chamber, so that the channel 4 is connected with the channel 2 or the blocking part blocks the channel 2. Due to the provision of the leak-proof part 1, the water in the water inlet chamber will not leak out through the guide groove 1. At the same time, the leak-proof part 1 can axially position the adjustment plate 1 to ensure that the adjustment plate 1 is always set close to the partition.

[0013] In the valve structure of the endoscope water supply pipeline, the adjustment plate 1 has an extension extending into the channel 1, and the channel 3 is arranged in the extension. The outer diameter of the extension is equal to the aperture of the channel 1, and when the adjustment plate 1 rotates under the action of the adjustment column 1, the extension can serve as the rotation axis of the adjustment plate 1.

[0014] In the valve structure of the endoscope water supply pipeline, the one-way check washer has a channel 5 connected to the channel 2, the side wall of the water outlet cavity is provided with a rotation-stop column extending along the axial direction of the water outlet cavity, and the one-way check washer has a slot that is inserted into the rotation-stop column. The slot and the rotation-stop column cooperate to limit the rotation of the one-way check washer.

[0015] In the above-mentioned valve structure of the endoscope water supply pipeline, the one-way check gasket is circular and the outer diameter is equal to or slightly smaller than the inner diameter of the valve cavity. The adjustable component includes a channel six, a blocking part two and a driving unit two provided on the one-way check gasket. Under the action of the driving unit two, the channel six is ​​connected with the channel two or the blocking part two blocks the channel two.

[0016] In the valve structure of the above-mentioned endoscope water supply pipeline, a clearance port is provided on the partition, and the second driving unit includes an adjusting column 2 vertically arranged on the one-way check gasket and a guide groove 2 arranged on the valve cover. The second adjusting column passes through the clearance port and enters the guide groove 2. When the adjusting column 2 moves to one end of the guide groove 2, the channel 6 is connected with the channel 2. When the adjusting column 2 moves to the other end of the guide groove 2, the blocking part 2 blocks the channel 2. The one-way check gasket is provided with a leak-proof part 2 abutting against the valve cover for always blocking the guide groove 2, and the adjusting column 2 is arranged on the leak-proof part 2.

[0017] In the valve structure of the endoscope water supply pipeline, the partition is L-shaped, the one-way check washer is against the horizontal plate of the partition, the channel 2 is arranged on the vertical plate of the partition, the adjustable component includes the adjustment plate 2 against the vertical plate and the adjustment column 3 arranged on the adjustment plate 2, the valve cover is provided with a guide hole, and the adjustment column 3 is inserted into the guide hole. Pulling the adjustment column 3 can make the adjustment plate 2 close the channel 2 or make the channel 2 in a conducting state.

[0018] In the valve structure of the endoscope water supply pipeline, the side wall of the valve cover is provided with a guide groove 1 and a guide groove 2 arranged opposite to the guide groove 1, one end of the regulating plate 2 is arranged in the guide groove 1, and the other end thereof is arranged in the guide groove 2. The guide groove 1 and the guide groove 2 extend along the axial direction of the water inlet cavity to guide and limit the regulating plate 2.

[0019] In the above-mentioned valve structure of the endoscope water supply pipeline, a groove is provided on the horizontal plate of the partition, and when the second regulating plate blocks the second channel, the second regulating plate extends into the groove.

[0020] Compared with the prior art, the valve structure of the endoscope water supply pipeline has the following advantages: the structure of the valve is improved so that it can be switched between a one-way flow and a two-way straight-through state, thereby reducing the number of external pipelines of the equipment; the adjustment is relatively convenient and easy to implement; the structural design is reasonable, easy to promote and apply, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of embodiment 1 provided by the present invention.

[0022] Figure 2 It is a cross-sectional view of the first embodiment provided by the present invention.

[0023] Figure 3 It is a cross-sectional view of a partial structure of the first embodiment provided by the present invention.

[0024] Figure 4 It is a cross-sectional view of another part of the structure of the first embodiment provided by the present invention.

[0025] Figure 5 It is a structural diagram of a part of the structure of the first embodiment provided by the present invention.

[0026] Figure 6 It is a cross-sectional view of the second embodiment provided by the present invention.

[0027] Figure 7 It is a structural diagram of part of the structure of the second embodiment provided by the present invention.

[0028] Figure 8 It is a structural diagram of embodiment 3 provided by the present invention.

[0029] Fig. 9 It is a cross-sectional view of the third embodiment provided by the present invention.

[0030] In the figure, 1. valve body; 2. valve cover; 3. water inlet; 4. water outlet; 5. partition; 6. channel one; 7. channel two; 8. one-way check gasket; 9. positioning protrusion; 10. adjusting plate one; 11. channel three; 12. channel four; 13. blocking part one; 14. adjusting column one; 15. guide groove one; 16. leak-proof part one; 17. extension part; 18. channel five; 19. anti-rotation column; 20. channel six; 21. blocking part two; 22. adjusting column two; 23. guide groove two; 24. leak-proof part two; 25. adjusting plate two; 26. adjusting column three. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] Embodiment 1

[0033] like Figure 1 and Figure 2 The valve structure of the endoscope water supply pipeline shown in the figure includes a valve body 1 and a valve cover 2, the valve body 1 and the valve cover 2 are buckled together, a valve cavity is provided between the valve body 1 and the valve cover 2, a water inlet 3 connected to the valve cavity is provided on the valve cover 2, and a water outlet 4 connected to the valve cavity is provided on the valve body 1. Figure 2 As shown, a partition 5 is provided in the valve cavity for dividing the valve cavity into a water inlet cavity and a water outlet cavity, the water inlet 3 is connected to the water inlet cavity, the water outlet 4 is connected to the water outlet cavity, and a channel 1 6 and a channel 2 7 for connecting the water inlet cavity and the water outlet cavity are provided on the partition 5. Channel 1 6 is located in the middle of the partition 5, and channel 2 7 is located at the edge of the partition 5, and there are multiple channels 2 7 distributed in a ring shape.

[0034] like Figure 3 As shown, the partition plate 5 is composed of a plurality of radial protrusions fixed on the valve cover 2, a channel 2 7 is formed between two adjacent radial protrusions, and a channel 1 6 is formed in the middle of all the radial protrusions.

[0035] In this embodiment, a one-way check component is provided at the channel 1 6, and an adjustable component for controlling the opening and closing of the channel 2 7 is provided at the channel 2 7. It has two states: when the adjustable component controls the channel 2 7 to be disconnected, the water entering from the water inlet 3 enters the water inlet cavity, enters the water outlet cavity through the one-way check component, and finally is discharged through the water outlet 4, and the water in the water outlet cavity cannot enter the water inlet cavity; when the adjustable component controls the channel 2 7 to be turned on, the water in the water outlet cavity can directly enter the water inlet cavity through the channel 2 7.

[0036] In this embodiment, Figure 2As shown, the one-way check assembly includes a one-way check gasket 8 made of rubber or silicone material for blocking the channel 1 6 and a positioning protrusion 9 abutting against the one-way check gasket 8. The one-way check gasket 8 abuts against the side of the partition 5 located at the water outlet cavity, the positioning protrusion 9 is located in the water outlet cavity, and the positioning protrusion 9 abuts against the center of the one-way check gasket 8. The one-way check gasket 8 is circular, and in order to achieve a better blocking effect, the outer diameter of the one-way check gasket 8 is larger than the aperture of the channel 1 6. When the adjustable component control channel 2 7 is disconnected, water flows into channel 1 6 from the water inlet chamber, and the water flows squeeze the one-way check gasket 8, causing the one-way check gasket 8 to deform, and a gap is generated between the one-way check gasket 8 and the partition 5 to connect the water outlet chamber and channel 1 6, and the water flows into the water outlet chamber along the gap; when the water pressure in the water outlet chamber is higher than the water pressure in the water inlet chamber, the water flow in the water outlet chamber squeezes the one-way check gasket 8, causing the one-way check gasket 8 to fit tightly against the partition 5, thereby achieving the purpose of one-way check.

[0037] like Figure 2 As shown, the adjustable component includes an adjustment plate 10 that is attached to the partition 5 on one side of the water inlet chamber. The adjustment plate 10 is circular and its outer diameter is equal to or slightly smaller than the inner diameter of the water inlet chamber. The thickness of the adjustment plate 10 is less than the length of the water inlet chamber to facilitate water flow. The adjustment plate 10 is provided with a channel 3 11 for connecting the channel 1 6 with the water inlet chamber. The channel 3 11 is located in the middle of the adjustment plate 10. Figure 2 As shown, the adjustment plate 10 has an extension portion 17 extending into the channel 1 6, the length of the extension portion 17 is less than or equal to the length of the channel 1 6, and the channel 3 11 is arranged in the extension portion 17. The outer diameter of the extension portion 17 is equal to the aperture of the channel 1 6. When the adjustment plate 10 rotates under the action of the adjustment column 14, the extension portion 17 can serve as the rotation axis of the adjustment plate 10.

[0038] like Figure 5 As shown, the adjusting plate 10 is provided with a channel 12 and a blocking portion 13. Figure 1 and Figure 3 As shown, the valve cover 2 is provided with a driving unit 1 for driving the adjusting plate 10 to rotate. Under the action of the driving unit 1, the channel 4 12 is connected with the channel 2 7 or the blocking part 13 blocks the channel 2 7. Under the action of the driving unit 1, the adjusting plate 10 has two states: the channel 2 7 is connected with the channel 4 12, at which time the water in the water outlet cavity can enter the water inlet cavity through the channel 2 7 and the channel 4 12 in sequence; the blocking part 13 blocks the channel 2 7, at which time the water in the water outlet cavity cannot enter the water inlet cavity.

[0039] like Figure 2 and Figure 5As shown, the driving unit 1 includes an adjusting column 14 vertically arranged on the adjusting plate 10 and a guide groove 15 arranged on the valve cover 2. The adjusting column 14 passes through the guide groove 15. When the adjusting column 14 moves to one end of the guide groove 15, the channel 4 12 is connected with the channel 2 7. When the adjusting column 14 moves to the other end of the guide groove 15, the blocking part 13 blocks the channel 2 7. Figure 5 As shown, the regulating plate 10 is provided with a leak-proof portion 16 which is attached to the valve cover 2 and used for always blocking the guide groove 15 , and the regulating column 14 is arranged on the leak-proof portion 16 .

[0040] The guide groove 15 is arc-shaped. When the adjusting column 14 is moved in the guide groove 15, the adjusting plate 10 will be driven to rotate along its own central axis in the water inlet chamber, so that the channel 4 12 is connected with the channel 2 7 or the blocking part 13 blocks the channel 2 7. Due to the provision of the leak-proof part 16, the water in the water inlet chamber will not leak outward through the guide groove 15. At the same time, the leak-proof part 16 can axially position the adjusting plate 10 to ensure that the adjusting plate 10 is always arranged close to the partition 5.

[0041] like Figure 4 As shown, the one-way check washer 8 has a channel 5 18 connected to the channel 2 7, the number of the channel 5 18 is equal to the number of the channel 2 7 and is arranged one-to-one, the side wall of the water outlet cavity is provided with a stop column 19 extending along the axial direction of the water outlet cavity, and the one-way check washer 8 has a slot that is inserted into the stop column 19. The slot and the stop column 19 cooperate to limit the rotation of the one-way check washer 8.

[0042] When the valve structure is used as a one-way valve, the adjusting column 14 is located at one end of the guide groove 15, at which time the channel 4 12 is staggered with the channel 2 7, and the blocking portion 13 covers the channel 2 7, so that the water in the water outlet chamber will not enter the water inlet chamber through the channel 2 7 and the channel 4 12. When it is necessary to achieve two-way conduction, the adjusting column 14 is moved to the other end of the guide groove 15, and during the movement, the adjusting plate 10 is driven to rotate around the extension portion 17, and at this time the channel 4 12 is connected with the channel 2 7, and the water in the water outlet chamber can enter the water inlet chamber through the channel 2 7 and the channel 4 12 in sequence.

[0043] Embodiment 2

[0044] like Figure 6 The valve structure of the endoscope water supply pipeline shown in the figure includes a valve body 1 and a valve cover 2, the valve body 1 and the valve cover 2 are buckled together, a valve cavity is provided between the valve body 1 and the valve cover 2, a water inlet 3 connected to the valve cavity is provided on the valve cover 2, and a water outlet 4 connected to the valve cavity is provided on the valve body 1. Figure 6As shown, a partition 5 is provided in the valve cavity for dividing the valve cavity into a water inlet cavity and a water outlet cavity, wherein the water inlet 3 is communicated with the water inlet cavity, and the water outlet 4 is communicated with the water outlet cavity. A channel 1 6 and a channel 2 7 for communicating the water inlet cavity and the water outlet cavity are provided on the partition 5, wherein the channel 1 6 is located in the middle of the partition 5, and the channel 2 7 is located at the edge of the partition 5. The partition 5 is composed of a plurality of radial protrusions fixed on the valve cover 2, wherein the channel 2 7 is formed between two adjacent radial protrusions, and the middle of all the radial protrusions forms the channel 1 6.

[0045] In this embodiment, a one-way check component is provided at the channel 1 6, and an adjustable component for controlling the opening and closing of the channel 2 7 is provided at the channel 2 7. It has two states: when the adjustable component controls the channel 2 7 to be disconnected, the water entering from the water inlet 3 enters the water inlet cavity, enters the water outlet cavity through the one-way check component, and finally is discharged through the water outlet 4, and the water in the water outlet cavity cannot enter the water inlet cavity; when the adjustable component controls the channel 2 7 to be turned on, the water in the water outlet cavity can directly enter the water inlet cavity through the channel 2 7.

[0046] In this embodiment, Figure 6 As shown, the one-way check assembly includes a one-way check gasket 8 made of rubber or silicone material for blocking the channel 1 6 and a positioning protrusion 9 abutting against the one-way check gasket 8. The one-way check gasket 8 abuts against the side of the partition 5 located at the water outlet cavity, the positioning protrusion 9 is located in the water outlet cavity, and the positioning protrusion 9 abuts against the center of the one-way check gasket 8. The one-way check gasket 8 is circular, and in order to achieve a better blocking effect, the outer diameter of the one-way check gasket 8 is larger than the aperture of the channel 1 6. When the adjustable component control channel 2 7 is disconnected, water flows into channel 1 6 from the water inlet chamber, and the water flows squeeze the one-way check gasket 8, causing the one-way check gasket 8 to deform, and a gap is generated between the one-way check gasket 8 and the partition 5 to connect the water outlet chamber and channel 1 6, and the water flows into the water outlet chamber along the gap; when the water pressure in the water outlet chamber is higher than the water pressure in the water inlet chamber, the water flow in the water outlet chamber squeezes the one-way check gasket 8, causing the one-way check gasket 8 to fit tightly against the partition 5, thereby achieving the purpose of one-way check.

[0047] like Figure 6 As shown, the one-way check gasket 8 is circular and its outer diameter is equal to the inner diameter of the valve cavity. Figure 7 As shown, the adjustable component includes a channel six 20 provided on the one-way check gasket 8, a blocking portion two 21 and a driving unit two provided on the one-way check gasket 8. Under the action of the driving unit two, the channel six 20 is connected with the channel two 7 or the blocking portion two 21 blocks the channel two 7.

[0048] A clearance opening is provided on the partition 5, that is, there is a large interval between two adjacent radial protrusions. The driving unit 2 includes an adjusting column 22 vertically arranged on the one-way check gasket 8 and a guide groove 23 arranged on the valve cover 2. The adjusting column 22 is passed through the clearance opening and passes through the guide groove 23. When the adjusting column 22 moves to one end of the guide groove 23, the channel 6 20 is connected with the channel 2 7. When the adjusting column 22 moves to the other end of the guide groove 23, the blocking part 21 blocks the channel 2 7. The one-way check gasket 8 is provided with a leak-proof part 24 abutting against the valve cover 2 for always blocking the guide groove 23. The adjusting column 22 is arranged on the leak-proof part 24.

[0049] When the valve structure is used as a one-way valve, the regulating column 22 is located at one end of the guide groove 23. At this time, the channel 6 20 is staggered with the channel 27, and the blocking part 21 covers the channel 27. The water in the water outlet cavity will not enter the water inlet cavity through the channel 27 and the channel 6 20. When it is necessary to achieve two-way conduction, the regulating column 22 is moved to the other end of the guide groove 23. During the movement, the one-way check washer 8 is driven to rotate. At this time, the channel 6 20 is connected with the channel 27, and the water in the water outlet cavity can enter the water inlet cavity through the channel 27 and the channel 6 20 in sequence.

[0050] Embodiment 3

[0051] like Figure 8 The valve structure of the endoscope water supply pipeline shown in the figure includes a valve body 1 and a valve cover 2, the valve body 1 and the valve cover 2 are buckled together, a valve cavity is provided between the valve body 1 and the valve cover 2, a water inlet 3 connected to the valve cavity is provided on the valve cover 2, and a water outlet 4 connected to the valve cavity is provided on the valve body 1. Fig. 9 As shown, a partition 5 for dividing the valve cavity into a water inlet cavity and a water outlet cavity is provided in the valve cavity, the partition 5 is "L"-shaped, a one-way check gasket 8 is abutted against the horizontal plate of the partition 5, a channel 1 6 is provided on the horizontal plate of the partition 5, a channel 2 7 is provided on the vertical plate of the partition 5, the water inlet 3 is connected with the water inlet cavity, and the water outlet 4 is connected with the water outlet cavity. In this embodiment, a one-way check component is provided at channel 1 6, and an adjustable component for controlling the on and off of channel 2 7 is provided at channel 2 7.

[0052] In this embodiment, Fig. 9 As shown, the one-way check assembly includes a one-way check gasket 8 made of rubber or silicone material for blocking channel 1 6 and a positioning protrusion 9 abutting against the one-way check gasket 8. The one-way check gasket 8 abuts on the side of the partition 5 located in the water outlet cavity, and the positioning protrusion 9 is located in the water outlet cavity. The positioning protrusion 9 abuts against the center of the one-way check gasket 8. The one-way check gasket 8 is circular. In order to achieve a better blocking effect, the outer diameter of the one-way check gasket 8 is larger than the aperture of channel 1 6. As shown in FIG. Fig. 9As shown, the one-way check gasket 8 is only provided at the horizontal plate of the partition 5 .

[0053] like Fig. 9 As shown, the adjustable component includes an adjusting plate 25 resting on the vertical plate and an adjusting column 3 26 arranged on the adjusting plate 25. The valve cover 2 is provided with a guide hole, and the adjusting column 3 26 is inserted into the guide hole. Pulling the adjusting column 3 26 can make the adjusting plate 25 close the channel 27 or make the channel 27 in a conducting state. In this embodiment, a guide groove 1 and a guide groove 2 arranged opposite to the guide groove 1 are provided on the side wall of the valve cover 2. One end of the adjusting plate 25 is arranged in the guide groove 1, and the other end thereof is arranged in the guide groove 2. The guide groove 1 and the guide groove 2 extend along the axial direction of the water inlet cavity to guide and limit the adjusting plate 25.

[0054] like Fig. 9 As shown, a groove is provided on the horizontal plate of the partition 5. When the adjusting plate 25 blocks the channel 2 7, the adjusting plate 25 extends into the groove to improve stability.

[0055] When the valve structure is used as a one-way valve, the regulating column 3 26 extends into the innermost part of the guide hole, and the regulating plate 25 is located in the groove, and the regulating plate 25 blocks the channel 2 7, so that the water in the water outlet chamber will not enter the water inlet chamber through the channel 2 7. When two-way conduction is required, the regulating column 3 26 is pulled outward to drive the regulating plate 3 to move in the guide groove 1 and the guide groove 2, so that the channel 2 7 is in an open state. The water in the water outlet chamber can enter the water inlet chamber through the channel 2 7.

[0056] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A valve structure for an endoscope water supply pipeline, comprising a valve body (1) and a valve cover (2), wherein a valve cavity is provided between the valve body (1) and the valve cover (2), the valve cover (2) is provided with a water inlet (3) communicating with the valve cavity, and the valve body (1) is provided with a water outlet (4) communicating with the valve cavity, characterized in that: The valve cavity is provided with a partition (5) for dividing the valve cavity into a water inlet cavity and a water outlet cavity. The water inlet (3) is communicated with the water inlet cavity, and the water outlet (4) is communicated with the water outlet cavity. The partition (5) is provided with a channel 1 (6) and a channel 2 (7) for communicating the water inlet cavity and the water outlet cavity. The channel 1 (6) is located in the middle of the partition (5), and the channel 2 (7) is located at the edge of the partition (5). The channel 2 (7) is distributed in a ring shape. The partition (5) is composed of a plurality of radial protrusions fixed on the valve cover (2). Two adjacent radial protrusions are connected to each other. A second channel (7) is formed between the radial projections, and a channel (6) is formed in the middle of all the radial projections; the channel (6) is provided with a one-way check assembly, and the channel (7) is provided with an adjustable assembly for controlling the on and off of the channel (7); the adjustable assembly comprises an adjusting plate (10) abutting against the partition (5) and located on one side of the water inlet chamber, the adjusting plate (10) being circular, and the adjusting plate (10) being provided with a channel (11) for connecting the channel (6) with the water inlet chamber, and the channel (11) being located in the middle of the adjusting plate (10). The regulating plate 1 (10) has an extension portion (17) extending into the channel 1 (6), the length of the extension portion (17) is less than or equal to the length of the channel 1 (6), and the channel 3 (11) is arranged in the extension portion (17); the outer diameter of the extension portion (17) is equal to the aperture of the channel 1 (6); the regulating plate 1 (10) is provided with a channel 4 (12) and a blocking portion 1 (13), and the valve cover (2) is provided with a driving unit 1 for driving the regulating plate 1 (10) to rotate, and the driving unit 1 includes an adjusting column 1 (14) vertically arranged on the regulating plate 1 (10). When the adjusting plate 1 (10) rotates under the action of the adjusting column 1 (14), the extension portion (17) can serve as the rotation axis of the adjusting plate 1 (10); under the action of the driving unit 1, the channel 4 (12) is connected with the channel 2 (7) or the blocking portion 1 (13) blocks the channel 2 (7); under the action of the driving unit 1, the adjusting plate 1 (10) has two states: the channel 2 (7) is connected with the channel 4 (12), at which time the water in the water outlet chamber can enter the water inlet chamber through the channel 2 (7) and the channel 4 (12) in sequence; the blocking portion 1 (13) blocks the channel 2 (7), at which time the water in the water outlet chamber cannot enter the water inlet chamber.

2. The valve structure of the endoscope water supply pipeline according to claim 1, characterized in that: The one-way check assembly comprises a one-way check gasket (8) made of soft material for blocking channel 1 (6) and a positioning protrusion (9) abutting against the one-way check gasket (8), wherein the one-way check gasket (8) abuts against a side of the partition (5) located at the water outlet chamber, and the positioning protrusion (9) is located in the water outlet chamber.

3. The valve structure of the water supply pipeline of an endoscope according to claim 2, characterized in that: The driving unit 1 further comprises a guide groove 1 (15) provided on the valve cover (2), the adjusting column 1 (14) passes through the guide groove 1 (15), when the adjusting column 1 (14) moves to one end of the guide groove 1 (15), the channel 4 (12) is connected with the channel 2 (7), when the adjusting column 1 (14) moves to the other end of the guide groove 1 (15), the blocking portion 1 (13) blocks the channel 2 (7), the adjusting plate 1 (10) is provided with a leak-proof portion 1 (16) abutting against the valve cover (2) and used for always blocking the guide groove 1 (15), and the adjusting column 1 (14) is provided on the leak-proof portion 1 (16).

4. The valve structure of the water supply pipeline of an endoscope according to claim 3, characterized in that: The one-way non-return gasket (8) is provided with a channel five (18) connected to the channel two (7); the side wall of the water outlet cavity is provided with a rotation-stop column (19) extending along the axial direction of the water outlet cavity; and the one-way non-return gasket (8) is provided with a slot for being inserted into the rotation-stop column (19).

5. The valve structure of the water supply pipeline of an endoscope according to claim 2, characterized in that: The one-way check gasket (8) is circular and has an outer diameter equal to the inner diameter of the valve cavity. The adjustable component comprises a channel six (20) provided on the one-way check gasket (8), a blocking portion two (21) and a driving unit two provided on the one-way check gasket (8). Under the action of the driving unit two, the channel six (20) is connected with the channel two (7) or the blocking portion two (21) blocks the channel two (7).

6. The valve structure of the water supply pipeline of an endoscope according to claim 5, characterized in that: The partition (5) is provided with a clearance opening, and the second driving unit comprises a second adjusting column (22) vertically arranged on the one-way check gasket (8) and a second guide groove (23) arranged on the valve cover (2). The second adjusting column (22) passes through the clearance opening and enters the second guide groove (23). When the second adjusting column (22) moves to one end of the second guide groove (23), the channel six (20) is connected with the second channel (7). When the second adjusting column (22) moves to the other end of the second guide groove (23), the second blocking portion (21) blocks the second channel (7). The one-way check gasket (8) is provided with a second leak-proof portion (24) abutting against the valve cover (2) for always blocking the second guide groove (23). The second adjusting column (22) is arranged on the second leak-proof portion (24).

7. The valve structure of the water supply pipeline of an endoscope according to claim 2, characterized in that: The partition (5) is L-shaped, the one-way check gasket (8) is abutted against the horizontal plate of the partition (5), the second channel (7) is arranged on the vertical plate of the partition (5), the adjustable component includes a second adjustment plate (25) abutting against the vertical plate and a third adjustment column (26) arranged on the second adjustment plate (25), the valve cover (2) is provided with a guide hole, and the third adjustment column (26) is inserted into the guide hole.

8. The valve structure of the water supply pipeline of an endoscope according to claim 7, characterized in that: The side wall of the valve cover (2) is provided with a guide groove 1 and a guide groove 2 arranged opposite to the guide groove 1, one end of the second adjustment plate (25) is arranged in the guide groove 1, and the other end thereof is arranged in the guide groove 2.

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