Water delivery pipe anti-reflux connector for water delivery of endoscope

Abstract

A water delivery pipe anti-reflux connector for endoscope water delivery relates to the field of endoscope water delivery and comprises an L-shaped connector body, an input flow channel and an output flow channel are respectively arranged in the L-shaped connector body, a sliding ball cavity is arranged at the communication position of the input flow channel and the output flow channel, and a ball body is slidably connected in the sliding ball cavity. A sliding ball cavity is formed in the outer end of the L-shaped connector body, a spring cover plate is detachably connected to the position, at the sliding ball cavity, of the outer end of the L-shaped connector body, a spring is connected between the end face of the inner side of the spring cover plate and the ball body, and inserting opening parts are arranged on the right side and the lower side of the L-shaped connector body. Water does not flow into the endoscope any more, meanwhile, water does not flow back into the kettle, water at the far end of the water conveying pipe cannot flow out of the pipe, flushing water is prevented from flowing back into the kettle, the situation that water is cut off when water is used again is avoided, and the safety and effectiveness of a doctor during use are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of endoscope water supply, in particular to a water pipe backflow prevention joint for endoscope water supply. Background Art

[0002] Endoscope flushers are mainly used clinically to support digestive ultrasound endoscopic diagnosis and treatment, as well as debridement and decontamination during endoscopic treatment. However, when the equipment stops working after the existing endoscope is flushed, the water remaining in the water pipeline may be sucked back into the kettle or the water in the pipeline may flow out along the pipeline, and each time the water pipeline is started, a certain recoil force will be generated, causing the water pipeline connection to loosen. Utility Model Content

[0003] The purpose of the utility model is to provide an anti-backflow joint for a water pipe used for supplying water to an endoscope, by adding an anti-backflow structure to the water pipe assembly so that the water in the water pipe does not flow back into the kettle or out, and no empty section phenomenon occurs when it is used again, so as to solve the main problems raised in the above-mentioned background technology.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A backflow prevention joint for a water supply pipe for an endoscope comprises an L-shaped joint body, wherein an input flow channel and an output flow channel are respectively arranged inside the L-shaped joint body, a sliding ball cavity is arranged at the connection point between the input flow channel and the output flow channel, a ball is slidably connected in the sliding ball cavity, the outer end of the L-shaped joint body is detachably connected to a spring cover plate at the position of the sliding ball cavity, a spring is connected between the inner end surface of the spring cover plate and the ball, the apertures of the input flow channel and the output flow channel are both smaller than the diameter of the ball, and a socket portion is arranged on the right side and the bottom side of the L-shaped joint body.

[0006] Preferably, a locking assembly is respectively provided on each of the socket parts, and the locking assembly includes a bottom ring part fixedly connected to the socket part, a locking ring is slidably connected to the bottom ring part, an inner ring groove is provided on the inner ring end face of the locking ring, an elastic rubber is installed in the inner cavity of the inner ring groove, and a ring plate part is fixedly connected to the opening edge of the inner ring groove.

[0007] Preferably, the bottom ring portion is provided with a rounded corner portion, and spherical bodies are installed on the bottom ring portion at equal intervals at the position of the rounded corner portion.

[0008] Preferably, the annular plate portion is provided with circular holes distributed at equal intervals, and two spherical bodies are slidably installed in the circular holes, and each of the two spherical bodies abuts against the elastic rubber respectively.

[0009] Preferably, the socket portion is configured in a truncated cone shape at the port portion.

[0010] The advantages and positive effects of the utility model are:

[0011] 1. The utility model is installed at the water delivery pipe. When the water delivery stops, the water flows without pressure. The elastic force of the spring pushes the ball to the input flow channel port to seal. When the endoscope flusher completes flushing, water will no longer flow into the endoscope, and the water will not flow back into the kettle. The water at the far end of the water delivery pipe cannot flow out of the pipe, blocking the flushing water from flowing back into the kettle. Moreover, the water will not be cut off when it is used again, ensuring the safety and effectiveness of the doctor's use.

[0012] 2. The water pipe is completely clamped at the joint of the joint using a locking assembly, which can effectively prevent the recoil force generated each time the peristaltic pump is started to deliver water, causing the joint to loosen and fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the full-section front view of the structure of an anti-backflow joint of a water delivery pipe for an endoscope according to the utility model;

[0015] Figure 2 This is a schematic structural diagram of an anti-backflow joint for an endoscope water supply pipe in a working state according to the utility model;

[0016] Figure 3 This is a structural schematic diagram of an anti-backflow joint for a water pipe used for water supply to an endoscope according to the utility model.

[0017] Figure 4 It is a partial structural schematic diagram of a second embodiment of a water supply pipe anti-backflow joint for endoscope water supply according to the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the locking assembly in Example 2 of an anti-backflow joint for a water pipe used for supplying water to an endoscope according to the utility model.

[0019] The symbols in the accompanying drawings are described as follows: L-shaped joint body 10; spring cover plate 11; spring 12; ball 13; input flow channel 14; output flow channel 15; sliding ball cavity 16; socket portion 17; water pipe 18; locking assembly 20; bottom ring portion 21; fillet portion 22; spherical body 1 23; locking ring 24; inner ring groove 25; elastic rubber 26; ring plate portion 27; spherical body 2 28. DETAILED DESCRIPTION

[0020] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0021] Combine the following Figure 1-5 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The view direction is consistent in front, back, left, right, up and down. Figure 1 The direction shown is consistent with the front, back, left, right, up and down directions of the device of the utility model when viewed from the front.

[0022] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like 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, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0024] See also Figure 1-3 , Embodiment 1 provided by the utility model: a water pipe anti-backflow joint for endoscope water supply, comprising an L-shaped joint body 10, wherein a socket portion 17 is respectively arranged on the transverse portion and the vertical portion of the L-shaped joint body 10, and a truncated cone shape is arranged at the port portion so as to facilitate the insertion and connection of a water pipe 18 of a water supply device, and an input flow channel 14 is arranged in the transverse portion of the L-shaped joint body 10, and an output flow channel 15 is arranged in the vertical portion, and a sliding ball cavity 16 is arranged at the intersection of the input flow channel 14 and the output flow channel 15, and a ball body 13 is slidably installed in the sliding ball cavity 16, and a spring 12 is connected between the ball body 13 and the spring cover plate 11, and the spring cover plate 11 is detachably installed on the outer end surface of the L-shaped joint body 10, so as to facilitate the removal and replacement of the ball body 13, and the diameter of the ball body 13 is larger than the aperture of the input flow channel 14 and the output flow channel 15;

[0025] When in use, the connector is connected to the water pipe of the water delivery device, and the socket portion 17 is connected and inserted into the water pipe for connection. At this time, the power switch of the water delivery device has not been turned on. Figure 1It can be seen that the peristaltic pump has not yet sucked the water from the kettle into the water pipe 18. At this time, the ball 13 is pushed against the port of the input channel 14 by the elastic force of the spring 12, thereby blocking the water. Once the power of the equipment is started to deliver water, the water is sucked from the kettle into the water pipe 18 by the suction force of the peristaltic pump, and the water pushes the ball 13 backward. The part of the water pushed up by the ball 13 flows into the output channel 15 and is discharged. When the water delivery is stopped, the flowing water has no pressure, and the elastic force of the spring 12 pushes the ball 13 to the port of the input channel 14, so that it is sealed, resulting in that the water cannot flow, and the water at the far end of the water pipe 18 cannot flow out of the pipe, thereby blocking the flushing water from flowing back into the kettle. When used again, the water output will not be cut off, thereby ensuring the safety and effectiveness of the doctor's use.

[0026] refer to Figure 4 , Figure 5 In addition, since each time the water is started, a certain recoil force will be generated on the connection with the water pipe, causing the joint to loosen. In order to ensure the stability of the joint when connected to the water pipe, in this embodiment 2, the difference from the embodiment 1 is that each of the socket parts 17 is respectively provided with a locking assembly 20, and the locking assembly 20 includes a bottom ring part 21 fixedly connected to the socket part 17, and the bottom ring part 21 is provided with a rounded corner part 22. A spherical body 23 is installed at an equal distance at the position of the fillet portion 22, a locking ring 24 is slidably connected to the bottom ring portion 21, an inner ring groove 25 is provided on the inner ring end surface of the locking ring 24, an elastic rubber 26 is installed in the inner cavity of the inner ring groove 25, a ring plate portion 27 is fixedly connected to the opening edge of the inner ring groove 25, circular holes are equidistantly distributed in the ring plate portion 27, and a spherical body 28 is slidably installed in the circular hole, and each of the spherical bodies 28 abuts against the elastic rubber 26 respectively;

[0027] When the joint is not yet connected to the water pipe, the locking ring 24 abuts against the bottom of the bottom ring portion 21, and the spherical body 28 abuts against the fillet portion 22, so that the inner ring groove 25 is squeezed and contracted by the spherical body 28. Once connected to the water pipe, the socket portion 17 is inserted into the water pipe, and the edge of the water pipe is inserted into the inner ring cavity of the locking ring 24. At the same time, the spherical body 1 23 is embedded in the water pipe. At this time, the locking ring 24 is slid toward one end of the socket portion 17, so that the spherical body 28 is squeezed along the inner ring groove 25. As the fillet 22 slides to the upper side of the spherical body 1 23, the water pipe is located between the spherical body 1 23 and the spherical body 2 28, and the elastic force of the elastic rubber 26 is released to clamp the port of the water pipe between the spherical body 1 23 and the spherical body 28. The spherical body 1 23 and the spherical body 28 are both spherical, and the spherical body 28 and the spherical body 1 23 are misaligned with each other, so that the water pipe is completely clamped, thereby effectively preventing the recoil force generated each time the peristaltic pump is started to deliver water, causing the connection to loosen and fall off.

[0028] In specific implementation, when in use, the joint is connected to the water pipe of the water delivery equipment, and the socket parts 17 are connected and inserted into the water pipe for communication, the edge of the water pipe is inserted into the inner ring cavity of the locking ring 24, and the spherical body 1 23 is embedded in the water pipe. At this time, the locking ring 24 is slid toward one end of the socket part 17, so that the spherical body 28 slides along the fillet part 22 to the upper side of the spherical body 1 23. At this time, the water pipe is located between the spherical body 1 23 and the spherical body 28, and the elastic force of the elastic rubber 26 is released to clamp the port of the water pipe between the spherical body 1 23 and the spherical body 28, and the spherical body 1 23 and the spherical body 28 are both spherical, and the spherical body 28 and the spherical body 28 are connected to each other. The spheres 23 are offset from each other, thereby completely clamping the water pipe, which can effectively prevent the recoil force generated each time the peristaltic pump is started to deliver water, causing the connection to loosen and fall off. When the device power is started to deliver water, the water is sucked from the kettle into the water pipe 18 by the suction force of the peristaltic pump, and the water pushes the sphere 13 backwards. The part of the water pushed up by the sphere 13 flows into the output channel 15 and is discharged. When the water delivery is stopped, the flowing water has no pressure, and the elastic force of the spring 12 pushes the sphere 13 to the port of the input channel 14, so that it is sealed, resulting in water being unable to circulate, and the water at the far end of the water pipe 18 cannot flow out of the pipe, thereby blocking the flushing water from flowing back into the kettle. When it is used again, the water output will not be cut off, thereby ensuring the safety and effectiveness of the doctor's use.

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A backflow prevention joint for a water pipe used for supplying water to an endoscope, comprising an L-shaped joint body (10), characterized in that: An input flow channel (14) and an output flow channel (15) are respectively arranged inside the L-shaped joint body (10); a sliding ball cavity (16) is arranged at the connection point between the input flow channel (14) and the output flow channel (15); a ball (13) is slidably connected in the sliding ball cavity (16); a spring cover plate (11) is detachably connected to the outer end of the L-shaped joint body (10) at the position of the sliding ball cavity (16); a spring (12) is connected between the inner end surface of the spring cover plate (11) and the ball (13); the apertures of the input flow channel (14) and the output flow channel (15) are both smaller than the diameter of the ball (13); and a socket portion (17) is arranged on the right side and the lower side of the L-shaped joint body (10).

2. The anti-backflow joint for water pipe for endoscope water supply according to claim 1, characterized in that: A locking assembly (20) is respectively arranged on each of the socket parts (17), and the locking assembly (20) comprises a bottom ring part (21) fixedly connected to the socket part (17), a locking ring (24) is slidably connected to the bottom ring part (21), an inner ring groove (25) is arranged on the inner ring end face of the locking ring (24), an elastic rubber (26) is installed in the inner cavity of the inner ring groove (25), and a ring plate part (27) is fixedly connected to the opening edge of the inner ring groove (25).

3. The anti-backflow joint for the water pipe for endoscope water supply according to claim 2, characterized in that: The bottom ring portion (21) is provided with a rounded corner portion (22), and spherical bodies (23) are installed on the bottom ring portion (21) at equal intervals at the position of the rounded corner portion (22).

4. The anti-backflow joint for water pipe for endoscope water supply according to claim 3, characterized in that: The ring plate portion (27) is provided with circular holes at equal intervals, and a second spherical body (28) is slidably installed in the circular hole, and each of the second spherical bodies (28) abuts against the elastic rubber (26) respectively.

5. The anti-backflow joint for the water pipe for endoscope water supply according to claim 4, characterized in that: The socket part (17) is arranged in a truncated cone shape at the end part.

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