A leak-proof water outlet device

Abstract

This invention provides a leak-proof water outlet device, comprising a water supply pipe, a limiting ring, a sealing bead, a spring, and an adjusting mechanism. The water supply pipe has an inlet end and an outlet end, the inlet end of which is connected to the water supply pipe of an automatic water supply device. A limiting plate is connected to the outlet end of the water supply pipe, and an outlet hole is formed on the limiting plate. The sealing bead is disposed inside the water supply pipe and can move along the centerline of the water supply pipe to block the outlet hole. The spring is disposed inside the water supply pipe, with one end abutting against the sealing bead. The adjusting mechanism of this invention adjusts the thrust applied to the spring in real time according to changes in external air pressure, thereby changing the thrust exerted by the spring on the sealing bead. This change counteracts the thrust exerted on the sealing bead by external air pressure, allowing the sealing bead to remain at the outlet hole of the limiting plate, blocking the outlet hole and preventing water leakage, thus maintaining the simulated chamber environment, even when not licked by experimental animals.

Description

Technical Field

[0001] This invention relates to the field of animal water feeding technology, and more specifically to a leak-proof water outlet device. Background Technology

[0002] In high-altitude medicine research, using a simulation chamber to mimic the low-pressure environment of high altitudes and studying the pathogenesis of altitude sickness in animals under such conditions is a routine experimental method. Experimental animals are placed in the simulation chamber, isolating them from the outside environment. Automatic water and food feeding devices are used to provide them with water. The conventional automatic water feeding device uses a suction head with a channel containing a spring and a sealing bead. The tip of the suction head contracts inward to prevent the sealing bead from slipping out. One end of the spring presses against the sealing bead, leaving part of it protruding from the tip. When the animal drinks, it licks the sealing bead, pushing it back and allowing water to flow out of the channel.

[0003] In practice, it has been found that the spring installed in the channel of the suction head needs to press the sealing bead against the end of the suction head so that the sealing bead can block the end of the suction head and prevent water from flowing out. At the same time, the elastic force of the spring should not be too large, so that the experimental animals will not be unable to open the channel by licking the sealing bead when they need to drink water. This makes the elastic force of the spring acting on the sealing bead at this point relatively small. As the experiment progressed, the water feeding device was placed in a simulation chamber. The chamber simulated the transition between low-pressure conditions at high altitudes and high-pressure conditions at plains. The air pressure acted on the sealing bead at the end of the suction head. When the water feeding device was in a low-pressure environment at high altitudes, the spring pressed the sealing bead against the end of the suction head, and the spring's thrust on the sealing bead was moderate, allowing the suction head to function normally. However, when the environment switched to high-pressure conditions at plains, the spring's internal thrust on the sealing bead remained unchanged, but the high pressure acted on the sealing bead from the outside, causing the sealing bead to retract into the suction head channel. This resulted in water leaking from the suction head of the automatic water feeding device, wetting the experimental chamber mat. Furthermore, the water leak caused dehydration in the experimental animals, making the experiment impossible to continue smoothly. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a water outlet device that prevents leakage, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] This invention provides a leak-proof water outlet device, comprising: The water supply pipe has an inlet and an outlet. A limiting plate is connected to the water outlet end of the water supply pipe, and a water outlet hole is provided on it; A sealing bead is installed inside the water supply pipe and can move along the center line of the water supply pipe to block the water outlet. A spring, disposed inside the water supply pipe, with one end abutting against the sealing bead; and An adjustment mechanism is connected to the other end of the spring, which applies different degrees of thrust to the spring according to different external air pressures.

[0006] Preferably, the water supply pipe has two or more sensing holes; The adjustment mechanism includes: The mounting block can slide into the water supply pipe along the center line direction. The mounting block can remain stationary inside the water supply pipe. The mounting block has a reaction channel corresponding to the sensing hole. The end of the reaction channel away from the sensing hole is opposite to the end of the spring. A first airbag, one end of which is connected to one end of the reaction channel and can be located within the corresponding sensing hole; and The second airbag has one end connected to the end of the reaction channel away from the first airbag and to the end of the spring away from the sealing bead.

[0007] Preferably, the reaction channel includes: A first reaction hole extends radially along the water supply pipe, with one end opposite the sensing hole; and The second reaction hole extends along the centerline of the water supply pipe. One end of the second reaction hole is opposite to the spring, and the end of the second reaction hole away from the spring is connected to the first reaction hole. The adjustment mechanism also includes: An annular sliding plate is coaxially disposed in the corresponding first reaction hole, and the annular sliding plate is clearance-fitted with the first reaction hole; A sealing ring is connected to the end of the annular sliding plate opposite to the second reaction hole, and the sealing ring can abut against the inner wall of the water supply pipe; and A positioning sleeve, one end of which is fixedly connected to the inner ring of the annular sliding plate, and the other end of which can be inserted into the corresponding sensing hole.

[0008] Preferably, the adjusting mechanism further includes: The third tubular capsule is fixedly connected at one end to the bottom of the first reaction hole and at the other end to the outer ring of the annular sliding plate.

[0009] One end of the first airbag is open and is fixedly connected to the inner wall of the positioning sleeve.

[0010] Preferably, the adjusting mechanism further includes: The guide block is clearance-fitted with the inner wall of the second reaction hole and is fixedly connected to the second airbag; The connecting rod is fixedly connected to the end of the guide block opposite to the second airbag; and A connecting ring is fixedly connected to the end of the spring away from the sealing bead, and the connecting ring is connected to the end of the connecting rod away from the guide block.

[0011] Preferably, both the second airbag and the third tubular airbag are cylindrical foldable airbags.

[0012] Preferably, the water supply pipe includes: The first pipe body, one end of which is the water outlet, has a square cross-section for its inner cavity; and The second tube is connected to the first tube along the same centerline, and its inner cross-section is square. The mounting block has a square cross-section; the mounting block slides against the inner wall of the second tube; the mounting block can abut against the first tube; the sensing hole is opened on the second tube.

[0013] Preferably, the mounting block has a cuboid structure; the mounting block has a first water passage hole and a second mounting hole along the center line of the water supply pipe; the first water passage hole communicates with the second mounting hole; one end of the spring abuts against the sealing bead, and the other end of the spring is located in the second mounting hole.

[0014] Preferably, a strip-shaped stop is connected to the end of the positioning sleeve away from the third tubular bladder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the adjustment mechanism adjusts the thrust applied to the spring in real time according to changes in external air pressure. This causes the thrust of the spring on the sealing bead to change, thereby canceling out the thrust applied to the sealing bead by external air pressure. This allows the sealing bead to remain at the water outlet of the limiting plate and block the water outlet when there is no experimental animal licking it, thus preventing water leakage and maintaining the environment inside the simulated chamber. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the installation of a leak-proof water outlet device according to one embodiment of the present invention; Figure 2 This is a perspective view of a water outlet device for preventing leakage according to an embodiment of the present invention; Figure 3 for Figure 1 Cross-sectional view of the water outlet device; Figure 4 for Figure 3 Enlarged diagram of point S in the middle; Figure 5 for Figure 2 Exploded view of the water outlet device; Figure 6 for Figure 5 Partial sectional view.

[0018] Figure label: 10. Water supply pipe; 11. Water inlet; 12. Water outlet; 13. Sensor hole; 14. First pipe body; 15. Second pipe body; 20. Limiting plate; 21. Water outlet; 30. Sealing beads; 40. Spring; 50. Adjustment mechanism; 51. Mounting block; 511. Reaction channel; 512. First reaction hole; 513. Second reaction hole; 514. First water passage hole; 515. Second mounting hole; 52. First airbag; 53. Second airbag; 54. Annular sliding plate; 55. Sealing ring; 56. Positioning sleeve; 57. Third tubular bladder; 58. Guide block; 59. Connecting rod; 60. Connecting ring; 61. Strip-shaped stop block. Detailed Implementation

[0019] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] See Figures 1 to 6 This embodiment provides a water outlet device to prevent leakage, including a water supply pipe 10, a limiting ring, a sealing bead 30, a spring 40, and an adjusting mechanism 50.

[0026] The water supply pipe 10 has an inlet end 11 and an outlet end 12. The inlet end 11 of the water supply pipe 10 is connected to the water supply pipe of the automatic water supply device. A limiting plate 20 is connected to the outlet end 12 of the water supply pipe 10. The limiting plate 20 has an outlet hole 21, which is concentric with the center line of the water supply pipe 10. A sealing bead 30 is disposed inside the water supply pipe 10. The sealing bead 30 can move along the center line of the water supply pipe 10 to block the outlet hole 21. When the sealing bead 30 does not block the outlet hole 21, water in the water supply pipe 10 can flow out from the outer periphery of the sealing bead 30 through the sealing bead 30 and out of the outlet hole 21. A spring 40 is disposed inside the water supply pipe 10, with one end abutting against the sealing bead 30. An adjusting mechanism 50 is connected to the other end of the spring 40. The adjusting mechanism 50 applies different degrees of thrust to the spring 40 according to different external air pressures. When the external air pressure increases, the thrust applied by the regulating mechanism 50 to the spring 40 increases, thereby compressing the spring 40 between the regulating mechanism 50 and the sealing bead 30, and increasing the elastic force of the spring 40 acting on the sealing bead 30.

[0027] In this embodiment, the adjustment mechanism 50 adjusts the thrust applied to the spring 40 in real time according to the change of external air pressure, thereby changing the thrust of the spring 40 on the sealing bead 30, which in turn cancels out the thrust applied to the sealing bead 30 by the external air pressure. This allows the sealing bead 30 to remain at the water outlet 21 of the limiting plate 20 without being licked by experimental animals, thus sealing the water outlet 21, preventing water leakage, and maintaining the environment inside the simulated chamber.

[0028] In one embodiment, the water supply pipe 10 has two or more sensing holes 13.

[0029] The adjustment mechanism 50 includes a mounting block 51, a first airbag 52, and a second airbag 53.

[0030] The mounting block 51 can slide into the water supply pipe 10 along the centerline and remain stationary within it. The mounting block 51 has reaction channels 511 corresponding to the sensing holes 13 (i.e., the number of reaction channels 511 on the mounting block 51 is the same as the number of sensing holes 13). The end of the reaction channel 511 furthest from the sensing hole 13 is opposite to the end of the spring 40. One end of the first airbag 52 is connected to one end of the reaction channel 511 and can be located within the corresponding sensing hole 13. One end of the second airbag 53 is connected to the end of the reaction channel 511 furthest from the first airbag 52 and is connected to the end of the spring 40 furthest from the sealing bead 30. The first airbag 52 is connected to the second airbag 53 through the reaction channel 511. The number of first airbags 52, second airbags 53, and reaction channels 511 corresponds one-to-one.

[0031] In this embodiment, the first airbag 52, which is connected to one end of the reaction channel 511, is placed at the sensing hole 13. When the external air pressure increases, the first airbag 52 is compressed and transmitted through the reaction channel 511, thereby increasing the volume of the second airbag 53. This compresses the spring 40, and the compressed spring 40 applies greater pressure to the sealing bead 30, which roughly cancels out the air pressure on the sealing bead 30, thus preventing the sealing bead 30 from shrinking back and causing water leakage.

[0032] In one embodiment, the reaction channel 511 includes a first reaction port 512 and a second reaction port 513.

[0033] The first reaction hole 512 extends radially along the water supply pipe 10, with one end of the first reaction hole 512 opposite to the sensing hole 13. The second reaction hole 513 extends along the centerline of the water supply pipe 10, with one end of the second reaction hole 513 opposite to the spring 40, and the end of the second reaction hole 513 away from the spring 40 communicating with the first reaction hole 512. The first reaction hole 512 and the second reaction hole 513 are connected by a transition hole.

[0034] The adjusting mechanism 50 also includes an annular sliding plate 54, a sealing ring 55, and a positioning sleeve 56.

[0035] An annular sliding plate 54 is coaxially disposed within the corresponding first reaction hole 512, with a clearance fit between the annular sliding plate 54 and the first reaction hole 512. A sealing ring 55 is connected to the end of the annular sliding plate 54 facing away from the second reaction hole 513, and the sealing ring 55 can abut against the inner wall of the water supply pipe 10. One end of the outer wall of the positioning sleeve 56 is fixedly connected to the inner ring of the annular sliding plate, and the other end of the positioning sleeve 56 can be inserted into the corresponding sensing hole 13.

[0036] In this embodiment, the mounting block 51 slides into the water supply pipe 10, causing the annular sliding plate 54 to move out of the first reaction hole 512. At this time, the positioning sleeve 56 is inserted into the corresponding sensing hole 13, thereby keeping the mounting block 51 stationary inside the water supply pipe 10 and achieving fixation. Meanwhile, the sealing ring 55 abuts against the inner wall of the water supply pipe 10, and the sensing hole 13 is located in the middle of the sealing ring 55, thereby preventing water leakage from the sensing hole 13.

[0037] In one embodiment, the adjustment mechanism 50 further includes a third tubular sac 57.

[0038] One end of the third tubular bladder 57 is fixedly connected to the bottom of the first reaction hole 512, and the other end of the third tubular bladder 57 is fixedly connected to the outer ring of the annular sliding plate 54. One end of the first airbag 52 is open and fixedly connected to the inner wall of the positioning sleeve 56.

[0039] In this embodiment, during installation, the positioning sleeve 56 is first pressed back into the first reaction hole 512. Then, the mounting block 51 is slid into the water supply pipe 10. At this time, the gas in the first reaction hole 512 moves towards the second airbag 53, compressing the spring 40. The annular sliding plate 54, due to its wider width, is affected by the air pressure within the reaction channel 511 and tends to move outward from the first reaction hole 512. This continues until the positioning sleeve 56 moves with the mounting block 51 to the sensing hole 13. The annular sliding plate 54 and the positioning sleeve 56 then move towards the reaction hole, and the positioning sleeve 56 is inserted into the sensing hole 13. When the external air pressure of the first airbag 52 increases, and the first airbag 52 is pressed into the first reaction hole 512, the air pressure within the reaction channel 511 increases, pressing the annular sliding plate 54 closer to the inner wall of the water supply pipe 10. This results in a better seal between the sealing ring 55 and the inner wall of the water supply pipe 10.

[0040] In one embodiment, the adjusting mechanism 50 further includes a guide block 58, a connecting rod 59, and a connecting ring 60.

[0041] The guide block 58 is clearance-fitted with the inner wall of the second reaction hole 513, and the guide block 58 is fixedly connected to the second airbag 53. The connecting rod 59 is fixedly connected to the end of the guide block 58 away from the second airbag 53. The connecting ring 60 is fixedly connected to the end of the spring 40 away from the sealing bead 30, and the connecting ring 60 is connected to the end of the connecting rod 59 away from the guide block 58.

[0042] In this embodiment, the spring 40 applies force evenly to the sealing bead 30 by two or more connecting rods 59 to the connecting ring 60.

[0043] In one embodiment, both the second airbag 53 and the third tubular airbag 57 are cylindrical foldable airbags with a structure similar to a corrugated pipe. When folded, the second airbag 53 and the third tubular airbag 57 have a guiding effect, i.e., they fold in a fixed direction. Therefore, the gaps between the annular sliding plate 54 and the inner wall of the first reaction hole 512, and between the guide block 58 and the inner wall of the second reaction hole 513, can be set relatively large to avoid direct contact, thereby reducing friction and allowing the pressure to be transmitted to the spring 40 more quickly through the second airbag 53 when the first airbag 52 is compressed.

[0044] In one embodiment, the water supply pipe 10 includes a first pipe body 14 and a second pipe body 15.

[0045] One end of the first pipe body 14 is the water outlet 12, and its inner cavity has a square cross-section. The second pipe body 15 is connected to the first pipe body 14 along the same center line, and its inner cavity has a square cross-section. The mounting block 51 has a square cross-section; the mounting block 51 slides with the inner wall of the second pipe body 15, and the mounting block 51 can abut against the first pipe body 14. The sensing hole 13 is opened on the second pipe body 15.

[0046] In this embodiment, the sealing bead 30 is not inside the first pipe body 14. Since the inner cavity of the first pipe body 14 is oriented in a certain direction, the sealing bead 30 can be restricted, allowing it to move only along the centerline of the first pipe body 14. Once the sealing bead 30 moves towards the second pipe body 15, water can flow out from the four corners of the first pipe body 14 after passing through the sealing bead 30. When the mounting block 51 abuts against the first pipe body 14, the positioning sleeve 56 pops out from the corresponding sensing hole 13.

[0047] In one embodiment, the mounting block 51 is a cuboid structure; the mounting block 51 has a first water passage hole 514 and a second mounting hole 515 along the center line of the water supply pipe 10; the first water passage hole 514 is connected to the second mounting hole 515; one end of the spring 40 abuts against the sealing bead 30, and the other end of the spring 40 is located in the second mounting hole 515.

[0048] In this embodiment, the cuboid structure of the mounting block 51 facilitates installation. When it mates with the second tube 15, the mounting block 51 abuts against the first tube 14, and the positioning sleeve 56 can pop out from the corresponding sensing hole 13 to form a fixed position. Installation is convenient.

[0049] In one embodiment, a strip-shaped stop 61 is connected to the end of the positioning sleeve 56 away from the third tubular bladder 57. The strip-shaped stop 61 limits the first air bladder 52 to prevent it from expanding outward. This allows the gas in the reaction channel 511 to act on the annular sliding plate 54 when it is pressurized, ensuring the sealing of the sealing ring 55 and the inner wall of the water supply pipe 10.

[0050] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A leak-proof water outlet device, characterized in that, include: The water supply pipe (10) has an inlet end (11) and an outlet end (12). The limiting plate (20) is connected to the water outlet (12) of the water supply pipe (10), and a water outlet hole (21) is provided on it. The sealing bead (30) is installed inside the water supply pipe (10) and can move along the center line of the water supply pipe (10) to block the water outlet (21); A spring (40) is disposed inside the water supply pipe (10), one end of which abuts against the sealing bead (30); and The adjustment mechanism (50) is connected to the other end of the spring (40) and applies different degrees of thrust to the spring (40) according to different external air pressures; The water supply pipe (10) has two or more sensor holes (13). The adjustment mechanism (50) includes: The mounting block (51) can slide into the water supply pipe (10) along the center line direction. The mounting block (51) can remain stationary inside the water supply pipe (10). The mounting block (51) has a reaction channel (511) corresponding to the sensing hole (13). The end of the reaction channel (511) away from the sensing hole (13) is opposite to the end of the spring (40). A first airbag (52), one end of which is connected to one end of the reaction channel (511) and can be located within the corresponding sensing hole (13); and The second airbag (53) has one end connected to the end of the reaction channel (511) away from the first airbag (52) and to the end of the spring (40) away from the sealing bead (30).

2. The water outlet device for preventing leakage as described in claim 1, characterized in that, The reaction channel (511) includes: The first reaction hole (512) extends radially along the water supply pipe (10), with one end opposite to the sensing hole (13); and The second reaction hole (513) extends along the center line of the water supply pipe (10). One end of the second reaction hole (513) is opposite to the spring (40), and the end of the second reaction hole (513) away from the spring (40) is connected to the first reaction hole (512). The adjustment mechanism (50) further includes: An annular sliding plate (54) is coaxially disposed in the corresponding first reaction hole (512), and the annular sliding plate (54) is clearance-fitted with the first reaction hole (512); A sealing ring (55) is connected to one end of the annular sliding plate (54) away from the second reaction hole (513), and the sealing ring (55) can abut against the inner wall of the water supply pipe (10); and Positioning sleeve (56), one end of the outer wall of the positioning sleeve (56) is fixedly connected to the inner ring of the annular sliding plate (54), and the other end of the positioning sleeve (56) can be inserted into the corresponding sensing hole (13).

3. The leak-proof water outlet device as described in claim 2, characterized in that, The adjustment mechanism (50) further includes: The third tubular capsule (57) is fixedly connected at one end to the bottom of the first reaction hole (512) and at the other end to the outer ring of the annular sliding plate (54); One end of the first airbag (52) is open and fixedly connected to the inner wall of the positioning sleeve (56).

4. The water outlet device for preventing leakage as described in claim 3, characterized in that, The adjustment mechanism (50) further includes: The guide block (58) is clearance-fitted with the inner wall of the second reaction hole (513) and fixedly connected to the second airbag (53); The connecting rod (59) is fixedly connected to the end of the guide block (58) opposite to the second airbag (53); and The connecting ring (60) is fixedly connected to the end of the spring (40) away from the sealing bead (30), and the connecting ring (60) is connected to the end of the connecting rod (59) away from the guide block (58).

5. A leak-proof water outlet device as described in claim 4, characterized in that, The second airbag (53) and the third tubular airbag (57) are both cylindrical foldable airbags.

6. The water outlet device for preventing leakage as described in claim 5, characterized in that, The water supply pipe (10) includes: The first pipe (14), one end of which is the water outlet (12), has a square cross-section in its inner cavity; and The second tube (15) is connected to the first tube (14) along the same center line, and its inner cavity cross section is square; The mounting block (51) has a square cross section; the mounting block (51) slides with the inner wall of the second tube (15); the mounting block (51) can abut against the first tube (14); the sensing hole (13) is opened on the second tube (15).

7. A leak-proof water outlet device as described in claim 6, characterized in that, The mounting block (51) has a cuboid structure; the mounting block (51) has a first water passage hole (514) and a second mounting hole (515) along the center line of the water supply pipe (10); the first water passage hole (514) is connected to the second mounting hole (515); one end of the spring (40) abuts against the sealing bead (30), and the other end of the spring (40) is located in the second mounting hole (515).

8. A leak-proof water outlet device as described in claim 7, characterized in that, The positioning sleeve (56) is connected to a strip-shaped stop (61) at the end away from the third tubular sac (57).

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