Drainage device

Abstract

The invention discloses a drainage device which comprises a drainage part used for sucking effusion; the anti-blocking assembly is arranged at the suction end of the drainage part, an inlet of the anti-blocking assembly is formed in the human body liquid containing position, and when the anti-blocking assembly moves, blocking objects accumulated in the anti-blocking assembly can be broken, and the blocked state of the inlet of the anti-blocking assembly can be relieved; the anti-blocking assembly comprises an anti-blocking pipe fitting, and an unblocking assembly is arranged in the anti-blocking pipe fitting in a sliding mode. The output end of the adjusting device communicates with the anti-blocking assembly, and the adjusting device is used for driving the unblocking assembly to slide towards the side close to or away from the inlet of the anti-blocking pipe fitting. The inlet and the interior of the anti-blocking assembly cannot be blocked, and therefore drainage safety can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of negative pressure drainage, and in particular to a drainage device. Background Art

[0002] The statements here only provide background technology related to the present invention and do not necessarily constitute prior art. VSD drainage, namely vacuum sealed drainage technology, is a method for treating drainage fluid after surgical operation. It cooperates with a biological semipermeable membrane to isolate the wound from the outside world to form a closed environment. This seal prevents external bacteria from entering the wound, while ensuring that water vapor in the wound and the skin can penetrate normally, turning the open wound into a closed wound, creating a clean and moist healing environment to avoid cross infection. After breast surgery, the doctor will set a drainage tube and a sealing dressing at the surgical site. The drainage tube is connected to an external vacuum pump. When the vacuum pump continues to work, it maintains a negative pressure state in the drainage tube, thereby absorbing the accumulated fluid at the surgical site.

[0003] However, the drainage device has the following problems when in use: 1. When in use, the drainage tube is easily blocked by blood clots, tissue debris or tissue debris from the surgical site; 2. Due to tissue reaction, inflammation or blood clot formation, or due to wound healing, the surrounding tissue grows and covers the entrance of the drainage tube, resulting in blockage of the entrance of the drainage tube. Blockage of the drainage tube can easily cause accumulation of body fluids and increase the risk of infection, thereby affecting the patient's recovery. Therefore, how to design a drainage device that can prevent blockage in the drainage tube and at the entrance has become a problem that people in this field need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide a drainage device to solve the above-mentioned shortcomings and prevent blockage at the suction point of accumulated fluid and in the tube.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a drainage device, comprising:

[0006] The drainage part is used to drain the accumulated fluid;

[0007] An anti-blocking component is arranged at the suction end of the drainage part, the inlet of the anti-blocking component is arranged at the body where the human body accumulates liquid, and the anti-blocking component can break the blockage accumulated inside it when it moves, and is also used to release the blocked state at its inlet;

[0008] The anti-blocking component includes an anti-blocking pipe, in which a clearing component is slidably arranged, and the clearing component can slide toward or away from the inlet of the anti-blocking pipe. When the clearing component slides toward the side close to the inlet of the anti-blocking pipe, it can scrape off and break the blockage stuck in the anti-blocking pipe, and can also push open the blockage covering the inlet of the anti-blocking pipe;

[0009] The regulating device, whose output end is connected with the anti-blocking component, is used to drive the clearing component to slide toward or away from the inlet of the anti-blocking pipe.

[0010] Further, the anti-blocking pipe fitting comprises an outer tube body, an inner tube body is arranged at the center of the outer tube body, the inner tube body is connected with the suction end of the drainage part, the clearing assembly comprises a crushing tube which is slidably sleeved on the inner tube body and dynamically sealably cooperates with the inner tube body, there is a cavity between the outer tube body and the inner tube body, the crushing tube cross section is T-shaped, and its transverse part dynamically seals with the inner wall of the corresponding cavity of the outer tube body, the crushing tube is in an inverted cone shape at one end close to the entrance of the outer tube body, the outer tube body is provided with an air guide port connected with the cavity, the air guide port is located at the bottom of the transverse part of the crushing tube, and the corresponding outer chamfer of the crushing tube is provided with a crushing needle inclined toward the center thereof;

[0011] The regulating device is used to introduce gas into the air guide port. The gas entering the cavity can push the crushing tube to move to the side close to the inlet of the outer tube body, and make the outer chamfer of the crushing tube scrape off the blockage attached to the inner wall of the outer tube body, and is also used to make the crushing needle crush the center of the blockage.

[0012] Furthermore, a rotating component is provided between the outer tube body and the crushing tube, and the rotating component is used to make the crushing tube rotate while sliding.

[0013] Furthermore, the rotating component includes a thread groove opened on the outer wall of the crushing tube, and a ball corresponding to the thread groove is rotatably provided on the inner wall of the outer tube body. The ball is located in the thread groove. When the crushing tube slides, the ball guides the crushing tube to rotate along the opening direction of the thread groove.

[0014] Furthermore, the crushing tube is rotatably provided with a plurality of groups of guide components at its outer chamfer, and each group of the guide components includes two anti-blocking wheel bodies in contact with each other. The two anti-blocking wheel bodies are rotatably provided on the outer wall and the inner wall of the crushing tube respectively. The anti-blocking wheel body at the outer wall of the crushing tube is in contact with the inner wall of the outer tube body. The guide component is used to guide the blockages gathered at the outer chamfer of the crushing tube into the crushing tube when the crushing tube slides toward the side close to the inlet of the outer tube body.

[0015] Furthermore, the anti-blocking assembly also includes a pushing component, which is used to move to the side away from the anti-blocking pipe fitting and push open the blockage at the entrance of the anti-blocking pipe fitting when the crushing pipe slides and contacts therewith, so that a gap is formed between the blockage and the entrance of the anti-blocking pipe fitting to allow the accumulated liquid to pass through.

[0016] Furthermore, the pushing component includes a pushing portion, and a guide groove with a strip shape and arranged along the length direction of the outer tube body is opened on the inner wall at the entrance of the outer tube body. The pushing portion includes a pushing ring attached to the entrance of the outer tube body, and a limiting frame is arranged on the pushing ring. The limiting frame extends from one end of the pushing ring away from the pushing ring to the corresponding guide groove of the outer tube body, and can slide and displace along the opening direction of the guide groove.

[0017] Furthermore, the regulating device comprises a shell, a piston rod is slidably inserted into one side of the shell, one end of the piston rod extends outside the shell, a push plate is arranged at one end of the piston rod located inside the shell, the push plate is dynamically sealed with the inner wall of the shell, a tension spring surrounding the outside of the piston rod is arranged on the push plate, the side of the tension spring away from the push plate is connected to the inner wall of the shell, a connecting pipe communicating with the inside of the shell is arranged on the side of the shell away from the piston rod, the end of the connecting pipe away from the shell is connected to the air guide port, and the side of the corresponding push plate in the shell away from the piston rod is filled with gas for driving the crushing tube to move;

[0018] Pushing the piston rod can move the push plate in the housing toward the side close to the connecting pipe and push the gas into the cavity. The gas is used to push the crushing tube to slide toward the side close to the inlet of the outer tube body.

[0019] The beneficial effects of the present invention are embodied in:

[0020] In the present invention, if the staff finds that the entrance of the anti-blocking component or its interior is blocked during the negative pressure drainage process, the adjusting device is started to drive the anti-blocking component to move. During this process, the anti-blocking component will slide to the side close to the entrance of the anti-blocking pipe, and it will scrape off and break the blockage accumulated inside the anti-blocking pipe, so that the blockage cooperates with the negative pressure absorption of the drainage part, and finally passes through the anti-blocking component and enters the drainage bag. The anti-blocking component can also release the blocked state at its entrance when working, so that the accumulated fluid in the patient's wound or surgical site can enter the drainage part smoothly, so that there will be no blockage at the entrance and inside of the anti-blocking component, thereby ensuring the safety of drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional view of the present invention;

[0022] Figure 2 It is a structural cross-sectional view of the anti-blocking pipe fitting in the present invention;

[0023] Figure 3 For the present invention Figure 2 A partial view of A shown;

[0024] Figure 4 For the present invention Figure 2 A partial view of B shown;

[0025] Figure 5 It is a partial cross-sectional view of the anti-blocking pipe fitting in the present invention;

[0026] Figure 6 For the present invention Figure 5 A partial view of C shown;

[0027] Figure 7 It is a partial cross-sectional view of the adjusting device in the present invention.

[0028] In the figure:

[0029] 1. Drainage part; 11. Drainage bag; 12. Drainage tube; 13. First one-way valve; 2. Anti-blocking pipe fitting; 21. Outer tube body; 22. Inner tube body; 23. Crushing tube; 24. Cavity; 25. Air guide port; 26. Threaded groove; 27. Rolling ball; 28. Crushing needle; 29. ​​Anti-blocking wheel body; 3. Pushing part; 31. Pushing ring; 32. Limiting frame; 4. Guide groove; 5. Adjusting device; 51. Shell; 52. Piston rod; 53. Push plate; 54. Tension spring; 55. Connecting tube; 6. Flushing part; 61. Flushing tube; 62. Second one-way valve. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-7 The present invention discloses a drainage device, including a drainage part 1, which is used to suck the accumulated fluid, and the drainage part 1 includes a drainage bag 11, a soft drainage tube 12 is installed at the inlet of the drainage bag 11, and a first one-way valve 13 is installed on the drainage tube 12. When in use, the drainage bag 11 is connected to an external negative pressure power device, and the operation of the negative pressure power device will form a negative pressure in the drainage tube 12, so that the accumulated fluid in the patient's wound or surgical site is guided into the drainage bag 11, and the setting of the first one-way valve 13 allows only one-way flow in the drainage tube 12.

[0032] It also includes a flushing part 6, which is composed of a flushing tube 61 and a second one-way valve 62 installed on the flushing tube 61. When in use, the flushing tube 61 can be connected to a medicine bag, and the medicine bag is filled with liquid for flushing. By connecting the flushing part 6 to a flushing device, the liquid can flow through the flushing tube 61 into the part of the patient that needs to be flushed, so as to flush the patient's wound or surgical site. In actual situations, the patient's wound or surgical site is covered with a dressing.

[0033] The drainage part 1, flushing part 6 and dressing mentioned above are all common knowledge in the art, so their specific structural composition and working principle will not be described in detail in this article.

[0034] In one embodiment, an anti-blocking component is provided at the suction end of the drainage tube 12 in the drainage part 1, and the inlet of the anti-blocking component is provided at the body fluid accumulation place. When the anti-blocking component moves, it can break the blockages accumulated inside it, and is also used to release the blocked state at its inlet. The anti-blocking component includes an anti-blocking pipe fitting 2, and a clearing component is slidably provided in the anti-blocking pipe fitting 2. The clearing component can slide toward or away from the inlet of the anti-blocking pipe fitting 2. When the clearing component slides toward the inlet of the anti-blocking pipe fitting 2, the blockages stuck in the anti-blocking pipe fitting 2 can be scraped off and broken, and the blockages covering the inlet of the anti-blocking pipe fitting 2 can be pushed open. The device also includes an adjusting device 5, and the output end of the adjusting device 5 is connected to the anti-blocking component, which is used to drive the clearing component to slide toward or away from the inlet of the anti-blocking pipe fitting 2.

[0035] In specific implementation, if the staff finds that the entrance of the anti-blocking component or its interior is blocked during the negative pressure drainage process, the adjusting device 5 is started to drive the anti-blocking component to move. During this process, the anti-blocking component will slide to the side close to the entrance of the anti-blocking pipe 2, and it will scrape off and break the blockage accumulated inside the anti-blocking pipe 2, so that the blockage cooperates with the negative pressure absorption of the drainage part 1, and finally passes through the anti-blocking component and enters the drainage bag 11. The anti-blocking component can also release the blocked state at its entrance when working, so that the accumulated fluid in the patient's wound or surgical site can enter the drainage part 1 smoothly, so that there will be no blockage at the entrance and inside of the anti-blocking component, thereby ensuring drainage safety.

[0036] It should be noted that in actual circumstances, a pressure sensor and a corresponding alarm component can be installed on the drainage tube 12. The alarm component can be a buzzer or a warning light. When the anti-blocking component is blocked and the internal pressure of the drainage tube 12 changes, the pressure sensor is used for detection. When it is detected that the pressure difference increases to a threshold value (blockage occurs), the alarm component is turned on to sound an alarm to prompt the staff to clear the blockage. The pressure sensor and the alarm component are common knowledge in the field, so they will not be described in detail in this article.

[0037] In one embodiment, the anti-blocking pipe fitting 2 includes an outer tube body 21, an inner tube body 22 is installed at the center of the outer tube body 21, the inner tube body 22 is connected to the suction end of the drainage part 1, and the clearing assembly includes a crushing tube 23 that is slidably sleeved on the inner tube body 22 and dynamically sealed therewith, there is a cavity 24 between the outer tube body 21 and the inner tube body 22, the crushing tube 23 has a T-shaped cross-section, and its transverse portion dynamically seals with the inner wall of the corresponding cavity 24 of the outer tube body 21, and one end of the crushing tube 23 close to the entrance of the outer tube body 21 is inverted cone shape, and an air guide port 25 connected to the cavity 24 is opened on the outer tube body 21, and the air guide port 25 is located at the bottom of the transverse portion of the crushing tube 23, and a crushing needle 28 inclined toward its center is installed at the corresponding outer chamfer of the crushing tube 23.

[0038] In a specific implementation, the regulating device 5 is used to introduce gas into the air guide port 25. When the regulating device 5 is started, the gas enters the cavity 24 and can push the crushing tube 23 to move to the side close to the entrance of the outer tube body 21. In this process, the outer chamfer of the crushing tube 23 scrapes off the blockage attached to the inner wall of the outer tube body 21, and the crushing needle 28 breaks the center of the blockage, so that the edge of the blockage is no longer firmly attached to the outer tube body 21, and the blockage becomes more scattered. With the continuous negative pressure absorption, the blockage can be guided from the outer chamfer of the crushing tube 23 to the inner tube body 22, and finally sucked into the drainage part 1, thereby relieving the blockage inside the anti-blocking pipe 2.

[0039] In one embodiment, a rotating component is provided between the outer tube body 21 and the crushing tube 23 , and the rotating component is used to make the crushing tube 23 rotate while sliding.

[0040] With this design, when the crushing tube 23 is rotated and adjusted while sliding, the outer chamfer of the crushing tube 23 and the crushing needle 28 can rotate synchronously, thereby further improving the processing effect at the edge and center of the blockage.

[0041] In one embodiment, the rotating component includes a thread groove 26 formed on the outer wall of the crushing tube 23 , and a ball 27 corresponding to the thread groove 26 is rotatably mounted on the inner wall of the outer tube body 21 , and the ball 27 is located in the thread groove 26 .

[0042] In a specific implementation, when the crushing tube 23 is sliding, the rolling ball 27 will guide the crushing tube 23 to rotate along the opening direction of the thread groove 26, so as to scrape and crush the blockage by rotation.

[0043] In one embodiment, the crushing tube 23 is rotatably provided with a plurality of guide assemblies at its outer chamfers, each guide assembly includes two anti-blocking wheel bodies 29 contacting each other, and the two anti-blocking wheel bodies 29 are rotatably installed on the outer wall and the inner wall of the crushing tube 23 respectively. The anti-blocking wheel bodies 29 at the outer wall of the crushing tube 23 are in contact with the inner wall of the outer tube body 21, and the guide assembly is used to guide the blockages gathered at the outer chamfer of the crushing tube 23 into the crushing tube 23 when the crushing tube 23 slides toward the side close to the entrance of the outer tube body 21.

[0044] In a specific implementation, when the crushing tube 23 slides toward the side close to the entrance of the outer tube body 21, the anti-blocking wheel body 29 on its outer wall rotates synchronously, and will drive the anti-blocking wheel body 29 on the inner wall of the crushing tube 23 to rotate in the opposite direction, and the anti-blocking wheel body 29 on the inner wall of the crushing tube 23 will rotate toward the side close to the bottom of the crushing tube 23. This design can enable the blockages that are processed by the crushing tube 23 and gathered at the entrance of the crushing tube 23 to be guided into the crushing tube 23 by the anti-blocking wheel body 29 on the inner wall of the crushing tube 23. This method can further increase the transportation efficiency of the blockages, and the crushing tube 23 will not push the blockages out of the outer tube body 21.

[0045] In one embodiment, the anti-blocking assembly further includes a pushing component, which is used to move to a side away from the anti-blocking pipe fitting 2 and push open the blockage at the entrance of the anti-blocking pipe fitting 2 when the crushing tube 23 slides and contacts therewith, so that a gap is formed between the blockage and the entrance of the anti-blocking pipe fitting 2 to allow the accumulated liquid to pass through.

[0046] This design enables the pushing component to push away the obstruction such as human tissue blocking the entrance of the anti-blocking pipe 2, thereby forming a gap between the obstruction and the entrance of the anti-blocking pipe 2, and the accumulated fluid can flow into the outer tube body 21 along the gap.

[0047] In one embodiment, the pushing component includes a pushing portion 3, and a guide groove 4 with a strip shape and arranged along the length direction of the outer tube body 21 is opened on the inner wall at the entrance of the outer tube body 21. The pushing portion 3 includes a pushing ring 31 attached to the entrance of the outer tube body 21, and a limiting frame 32 is installed on the side of the pushing ring 31 close to the outer tube body 21. The limiting frame 32 extends from one end of the pushing ring 31 away from the pushing ring 31 to the corresponding guide groove 4 of the outer tube body 21, and can slide and displace along the opening direction of the guide groove 4.

[0048] In a specific implementation, when the crushing tube 23 slides toward the side close to the outer tube body 21 until it contacts the limiting frame 32 and pushes it up, the pushing ring 31 slides accordingly and pushes open the blockage. The distance between the pushing ring 31 and the entrance of the outer tube body 21 expands as the crushing tube 23 continues to move, and the expansion range corresponds to the length of the guide groove 4. At this time, the accumulated liquid can enter the outer tube body 21 from the gap between the limiting frame 32 and the outer tube body 21.

[0049] In one embodiment, the adjusting device 5 includes a shell 51, a piston rod 52 is slidably inserted into one side of the shell 51, one end of the piston rod 52 extends to the outside of the shell 51, a push plate 53 is installed at one end of the piston rod 52 located inside the shell 51, the push plate 53 is dynamically sealed with the inner wall of the shell 51, a tension spring 54 surrounding the outside of the piston rod 52 is installed on the push plate 53, the side of the tension spring 54 away from the push plate 53 is connected to the inner wall of the shell 51, a connecting pipe 55 communicating with the inside of the shell 51 is installed on the side of the shell 51 away from the piston rod 52, the end of the connecting pipe 55 away from the shell 51 is connected to the air guide port 25, and the side of the corresponding push plate 53 in the shell 51 away from the piston rod 52 is filled with gas for pushing the crushing tube 23 to move;

[0050] In the specific implementation, the staff pushes the piston rod 52, which drives the push plate 53 to move toward the side close to the connecting tube 55. During this process, the push plate 53 pushes the gas inside the shell 51 into the connecting tube 55, and the gas passes through the connecting tube 55 and finally enters the cavity 24, and the gas can push the crushing tube 23 to slide toward the side close to the entrance of the outer tube body 21.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] In addition, "plurality" means two or more.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage device, characterized in that: include: A drainage part (1), used for draining the accumulated fluid; An anti-blocking component is arranged at the suction end of the drainage part (1), the inlet of the anti-blocking component is arranged at the place where the human body accumulates liquid, and the anti-blocking component can break up the blockage accumulated inside it when it moves, and is also used to release the blocked state at its inlet; The anti-blocking component comprises an anti-blocking pipe (2), a clearing component is slidably arranged in the anti-blocking pipe (2), and the clearing component can slide towards or away from the inlet of the anti-blocking pipe (2). When the clearing component slides towards the inlet of the anti-blocking pipe (2), the blockage stuck in the anti-blocking pipe (2) can be scraped off and broken, and the blockage covering the inlet of the anti-blocking pipe (2) can also be pushed open; The regulating device (5) has an output end connected to the anti-blocking component and is used to drive the anti-blocking component to slide towards or away from the inlet of the anti-blocking pipe (2).

2. A drainage device according to claim 1, characterized in that: The anti-blocking pipe (2) comprises an outer pipe body (21), an inner pipe body (22) is arranged at the center of the outer pipe body (21), the inner pipe body (22) is connected to the suction end of the drainage part (1), the clearing assembly comprises a crushing pipe (23) slidably sleeved on the inner pipe body (22) and dynamically sealed therewith, a cavity (24) is provided between the outer pipe body (21) and the inner pipe body (22), and the crushing pipe (23) has a T-shaped cross section. Its transverse portion is dynamically sealed with the inner wall of the corresponding cavity (24) of the outer tube body (21); one end of the crushing tube (23) close to the entrance of the outer tube body (21) is in an inverted cone shape; the outer tube body (21) is provided with an air guide port (25) connected with the cavity (24); the air guide port (25) is located at the bottom of the transverse portion of the crushing tube (23); and a crushing needle (28) inclined toward the center of the crushing tube (23) is provided at the corresponding outer chamfer; The regulating device (5) is used to introduce gas into the air guide port (25). The gas entering the cavity (24) can push the crushing tube (23) to move toward the side close to the entrance of the outer tube body (21), and can cause the outer chamfer of the crushing tube (23) to scrape off the blockage attached to the inner wall of the outer tube body (21), and can also cause the crushing needle (28) to crush the center of the blockage.

3. A drainage device according to claim 2, characterized in that: A rotating component is provided between the outer tube body (21) and the crushing tube (23), and the rotating component is used to make the crushing tube (23) rotate while sliding.

4. A drainage device according to claim 3, characterized in that: The rotating component comprises a thread groove (26) formed on the outer wall of the crushing tube (23); a rolling ball (27) corresponding to the thread groove (26) is rotatably provided on the inner wall of the outer tube body (21); the rolling ball (27) is located in the thread groove (26); when the crushing tube (23) slides, the rolling ball (27) guides the crushing tube (23) to rotate along the direction in which the thread groove (26) is formed.

5. A drainage device according to claim 4, characterized in that: The crushing tube (23) is rotatably provided with a plurality of guide assemblies at its outer chamfer, each guide assembly comprising two anti-blocking wheel bodies (29) in contact with each other, the two anti-blocking wheel bodies (29) being rotatably provided on the outer wall and the inner wall of the crushing tube (23), respectively, the anti-blocking wheel bodies (29) at the outer wall of the crushing tube (23) being in contact with the inner wall of the outer tube body (21), the guide assemblies being used to guide the blockages gathered at the outer chamfer of the crushing tube (23) into the crushing tube (23) when the crushing tube (23) slides toward a side close to an entrance of the outer tube body (21).

6. A drainage device according to claim 4, characterized in that: The anti-blocking assembly further comprises a pushing component, which is used to move to a side away from the anti-blocking pipe member (2) and push open the blockage at the entrance of the anti-blocking pipe member (2) when the crushing pipe (23) slides and contacts the crushing pipe (23), so that a gap is formed between the blockage and the entrance of the anti-blocking pipe member (2) to allow the accumulated liquid to pass through.

7. A drainage device according to claim 6, characterized in that: The push-up component comprises a push-up portion (3), a guide groove (4) having a strip shape and arranged along the length direction of the outer tube body (21) is opened on the inner wall at the entrance of the outer tube body (21), the push-up portion (3) comprises a push-up ring (31) attached to the entrance of the outer tube body (21), a limit frame (32) is arranged on the push-up ring (31), and the limit frame (32) extends from one end of the push-up ring (31) to the corresponding guide groove (4) of the outer tube body (21), and can slide and displace along the opening direction of the guide groove (4).

8. A drainage device according to claim 2, characterized in that: The regulating device (5) comprises a shell (51), a piston rod (52) is slidably inserted into one side of the shell (51), one end of the piston rod (52) extends outside the shell (51), a push plate (53) is provided at one end of the piston rod (52) located inside the shell (51), the push plate (53) is in dynamic sealing cooperation with the inner wall of the shell (51), a tension spring (54) surrounding the outside of the piston rod (52) is provided on the push plate (53), the side of the tension spring (54) away from the push plate (53) is connected to the inner wall of the shell (51), a connecting pipe (55) in communication with the inside of the shell (51) is provided on the side of the shell (51) away from the piston rod (52), the end of the connecting pipe (55) away from the shell (51) is connected to the air guide port (25), and the side of the corresponding push plate (53) in the shell (51) away from the piston rod (52) is filled with gas for pushing the crushing tube (23) to move; Pushing the piston rod (52) can cause the push plate (53) located in the housing (51) to move toward a side close to the connecting pipe (55), and push gas into the cavity (24), and the gas is used to push the crushing tube (23) to slide toward a side close to the entrance of the outer tube body (21).

Images