Flow velocity control structure of drainage tube

Abstract

The invention relates to the technical field of drainage tubes, in particular to a drainage tube flow speed control structure which comprises a tube connecting inlet, a medicament output tube is arranged on the outer wall of the tube connecting inlet, and a backflow prevention assembly is arranged on the outer wall of the medicament output tube and comprises a containing box located on the outer wall of the medicament output tube. According to the flow velocity control structure for the drainage tube, the front end of the displayer is connected with the protruding block, the protruding block stretches out to effectively slow down the speed of a medicament flowing into the medicament output pipe from the medicament inlet, when the flow velocity of the medicament is too low, the medicament can gradually fill an arc-shaped filling cavity, and therefore the flow velocity of the medicament is controlled. And the arc-shaped filling cavity is pushed to move rightwards, the moved arc-shaped filling cavity drives the convex block to move leftwards, the situation that the flow speed is too low due to blocking of the convex block is reduced, the constant-speed drainage tube is convenient for medical staff to more accurately record the drainage amount and the drainage time, and the medical staff can conveniently judge disease development according to actual drainage conditions.

Description

Technical Field

[0001] The invention relates to the technical field of drainage tubes, in particular to a drainage tube flow rate control structure. Background Art

[0002] Drainage tubes have a wide range of applications and play an important role in the medical field. They are important tools for doctors to treat diseases and monitor conditions. When using drainage tubes, doctors need to select appropriate drainage tubes and drainage methods based on the patient's specific conditions, and closely observe changes in the patient's condition and adjust the treatment plan in a timely manner; at the same time, patients should also follow the doctor's advice and properly protect the drainage tube to ensure its patency and effective drainage.

[0003] The existing drainage tube flow rate controller is prone to accidental touch or failure, and the tube wall is easily damaged or bent after the wheel is squeezed. For example, in abdominal drainage, the viscosity of the liquid will cause the set flow rate to be inconsistent with the actual flow rate due to individual differences and changes in the disease condition. Medical staff cannot discover and adjust it in time, and the exposed controller is prone to accidental touch. Therefore, a drainage tube flow rate control structure is proposed. Summary of the invention

[0004] The present invention provides the following technical solution: a drainage tube flow rate control structure, comprising a pipe inlet, an outer wall of the pipe inlet is provided with a medicine output pipe, and an outer wall of the medicine output pipe is provided with an anti-backflow component; The anti-backflow assembly includes a placement box located on the outer wall of the medicine output tube, the inner wall of the placement box is provided with a backflow outlet, the outer wall of the backflow outlet is provided with a backflow pipe, a rotating shaft is provided inside the placement box, a circular baffle is rotated on the rotating shaft, a second gear is installed at one end of the rotating shaft, a fixing plate passes through the placement box, a second rack meshing with the second gear is provided inside the fixing plate, and an L-shaped connecting plate is provided at the bottom of the second rack; The outer wall of the medicine output tube is provided with a speed limiting component on a side close to the placement box, the speed limiting component includes a first connecting plate located on the outer wall of the medicine output tube, the outer wall of the first connecting plate is fixedly connected to a control plate, the outer wall of the control plate is provided with an adjusting box, a fixing block is provided at the bottom of the control plate, the outer wall of the fixing block is fixedly connected to a connecting long rod, the bottom of the connecting long rod is provided with an inclined plate, a connecting column is provided at the other end of the outer wall of the connecting long rod, the outer wall of the connecting column is fixedly connected to a first rack, fixedly connected to a first gear, the outer wall of the first rack is fixedly connected to a moving column, the outer wall of the moving column is sleeved with a cylinder, the inner wall of the cylinder is fixedly connected to the first gear on a side close to the first rack, the outer wall of the first gear is provided with a third rack meshing therewith, the outer wall of the moving column is provided with a connecting rod, the outer wall of the connecting rod is fixedly connected to a protrusion, and the surface of the control plate is provided with a sensing block Preferably: the speed limiting component also includes a medicine inlet, the outer wall of the first connecting plate is provided with a display, the outer wall of the first connecting plate is provided with a control button on the side close to the display, the outer wall of the inclined plate is fixedly connected with a pull rod, the outer wall of the regulating box is fixedly connected with an arc-shaped filling cavity, and the outer wall of the medicine inlet is provided with a cylinder on the side away from the arc-shaped filling cavity.

[0005] Preferably: the backflow prevention assembly further comprises a rubber ring, the size of the rubber ring is equal to that of the circular baffle, the outer wall of the circular baffle is fixedly connected with a second connecting plate, and the inner wall of the placement box is provided with a backflow outlet on a side close to the rubber ring.

[0006] Preferably, a plastic connecting pipe is provided on the outer wall of the connecting pipe inlet, a connecting head is fixedly connected to the bottom of the medicine output pipe, and a medicine placement box is provided at the bottom of the connecting head.

[0007] Preferably: a liquid storage box is fixedly connected to the bottom of the reflux pipe, and a visual panel is provided on the inner wall of the liquid storage box.

[0008] Preferably, the diameter of the medicine inlet is equal to the diameter of the medicine output tube.

[0009] Preferably, the rubber ring and the return pipe are located on the same horizontal line.

[0010] Preferably: a magnetic strip is provided on the top of the inclined plate, and a magnet is provided at one end of the connecting long rod close to the inclined plate.

[0011] Preferably, the position of the sensing block corresponds to the position of the L-shaped connecting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The flow rate control structure of this drainage tube is as follows: when the flow rate is too fast, the wall pressure decreases. Since the bottom of the inclined plate fits the arc-shaped filling cavity, the pressure in the sealed state pushes the inclined plate to move leftward. Because the excessive flow rate prevents too much medicine from flowing into the arc-shaped filling cavity, a connecting long rod is connected to the outer wall of the inclined plate, and the other end of the outer wall of the connecting long rod is connected to a connecting column. A first rack is fixedly connected to the outer wall of the connecting column. A cylinder is sleeved on the outer wall of the moving column, and a first gear is fixed to the inner wall of the cylinder. A third rack meshing with it is provided on the outer wall of the moving column near the first gear. Since the first gear meshes with both the first rack and the third rack, when the inclined plate pushes the connecting long rod to move inward, the first rack moves to drive the first gear to rotate. After the gear rotates, it drives the third rack to move, and the third rack and the connecting column move in the opposite direction. The third rack fixed on the moving column pushes the moving column to move rightward. Since a convex block is connected to the front end of the moving column and the convex block extends out, the speed of the medicine flowing from the medicine inlet into the medicine outlet pipe is effectively slowed down. The uniform drainage tube facilitates medical staff to more accurately record the drainage volume and drainage time, and helps them judge the development of the disease according to the actual situation of the drainage.

[0013] The flow rate control structure of this drainage tube is also as follows: after the uniform medicine flows from the return pipe into the placement box, the circular baffle is driven to move by the impact force of the water flow. The circular baffle drives the rotation of the rotating shaft fixedly connected to the outer wall. Since a second gear is provided at the position corresponding to the other side of the circular baffle and the second rack meshing with it is provided on the outer wall of the second gear, when the circular baffle is pushed by the flowing medicine, it drives the second gear to rotate. An L-shaped connecting plate is provided at the bottom of the second rack. Since the position of the L-shaped connecting plate corresponds to that of the induction block, the flow rate of the medicine is reflected on the display, which is convenient for medical staff to observe and perform subsequent operations in a timely manner, preventing the abnormal flow rate in the tube caused by the abnormal parts in the speed limit component, resulting in the inability of medical staff to make timely adjustments and delaying the condition.

[0014] 3. The flow rate control structure of this drainage tube also has a rubber ring provided on the inner wall of the placement box. When the medicine flows into the patient's body, the establishment of the circular baffle effectively prevents the occurrence of the backflow phenomenon. When the water flow rate controls the opening and closing of the circular baffle, when the backflow phenomenon occurs, the circular baffle is driven to move onto the rubber ring by the liquid impact force. Since the size of the rubber ring is equal to that of the circular baffle, the backflow liquid cannot flow out from the rubber ring, and the backflow liquid can only flow out from the backflow outlet into the return pipe. The return pipe transports the backflow liquid to the liquid storage box, which is convenient for medical staff to observe the patient's condition in real time, effectively avoiding the pollution of the drainage tube by the backflow liquid and the entry of bacteria. The discharge of the backflow liquid from another discharge pipe outside reduces the harm to the patient's health, improves the safety of the equipment, and prevents the patient from being infected. If the drainage fluid backflows, such as the liquid containing pollutants such as bacteria returns to the original tissue or body cavity in the body, it will cause infection. The anti-backflow component not only effectively reduces the risk of infection but also ensures the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a drainage tube flow rate control structure; Figure 2 The second schematic diagram of the cross-sectional structure of a drainage tube flow rate control structure; Figure 3 The third is a schematic diagram of a cross-sectional structure of a drainage tube flow rate control structure; Figure 4 A schematic diagram of the structure of an anti-backflow component of a drainage tube flow rate control structure; Figure 5 This is a schematic diagram of a speed limiting component structure of a drainage tube flow rate control structure; Figure 6 The second schematic diagram of the speed limiting component structure of a drainage tube flow rate control structure; Figure 7 The third schematic diagram of the speed limiting component structure of a drainage tube flow rate control structure; Figure 8 A drainage tube flow rate control structure Figure 7 Enlarged view of point A in the middle.

[0016] In the figure: 1, pipe inlet; 2, plastic connecting pipe; 3, medicine output pipe; 4, connector; 5, medicine storage box; 6, anti-backflow component; 61, storage box; 62, rubber ring; 63, shaft; 64, second connecting plate; 65, circular baffle; 66, backflow outlet; 67, fixing plate; 68, second rack; 69, second gear; 610, L-shaped connecting plate; 7, backflow pipe; 8, liquid storage box; 9, visual plate; 10, speed limit component; 101, first connecting plate; 1 02. Medicine inlet; 103. Display; 104. Control button; 105. Control panel; 106. Adjustment box; 107. Arc-shaped filling cavity; 108. Inclined plate; 109. Connecting long rod; 1010. Connecting column; 1011. First gear; 1012. Third rack; 1013. Moving column; 1014. Connecting rod; 1015. Bump; 1016. Cylinder; 1017. Fixed block; 1018. Induction block; 1019. Pull rod; 1020. First rack. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1-8, a drainage tube flow rate control structure, comprising a pipe inlet 1, a medicine output pipe 3 is arranged on the outer wall of the pipe inlet 1, and a backflow prevention component 6 is arranged on the outer wall of the medicine output pipe 3; The backflow prevention assembly 6 includes a placement box 61 located on the outer wall of the medicine output tube 3, a backflow outlet 66 is provided on the inner wall of the placement box 61, a backflow pipe 7 is provided on the outer wall of the backflow outlet 66, a rotating shaft 63 is provided inside the placement box 61, a circular baffle 65 is rotated on the rotating shaft 63, a second gear 69 is installed on the other end of the rotating shaft 63, a fixing plate 67 passes through the placement box 61, a second rack 68 meshing with the second gear 69 is provided inside the fixing plate 67, and an L-shaped connecting plate 610 is provided at the bottom of the second rack 68; The outer wall of the medicine output pipe 3 is provided with a speed limiting component 10 on the side close to the placement box 61. The speed limiting component 10 includes a first connecting plate 101 located on the outer wall of the medicine output pipe 3. The outer wall of the first connecting plate 101 is fixedly connected to a control board 105. The outer wall of the control board 105 is provided with an adjustment box 106. The bottom of the control board 105 is provided with a fixing block 1017. The outer wall of the fixing block 1017 is fixedly connected to a connecting long rod 109. The bottom of the connecting long rod 109 is provided with an inclined plate 108. The other end of the outer wall of the connecting long rod 109 is provided with a connecting column 1010. The outer wall of the connecting column 1010 is fixedly connected to It is connected to a first rack 1020, fixedly connected to a first gear 1011, the outer wall of the first rack 1020 is fixedly connected to a moving column 1013, the outer wall of the moving column 1013 is sleeved with a cylinder 1016, the inner wall of the cylinder 1016 is fixedly connected to the first gear 1011 on the side close to the first rack 1020, the outer wall of the first gear 1011 is provided with a third rack 1012 meshing therewith, the outer wall of the moving column 1013 is provided with a connecting rod 1014, the outer wall of the connecting rod 1014 is fixedly connected with a protrusion 1015, and the surface of the control panel 105 is provided with a sensing block 1018.

[0019] It should be noted that, after the medicine flows from the medicine placement box 5 into the medicine output tube 3, since the outer wall of the medicine output tube 3 is provided with a first connecting plate 101, when the medical staff pulls the pull rod 1019 to set the medicine flow rate at a specified value, since the outer wall of the control panel 105 is provided with a contact of the medicine flow rate value at one end close to the fixed block 1017, after pulling the pull rod 1019, the fixed block 1017 drives the connecting long rod 109 to move, and since the bottom of the connecting long rod 109 is provided with an inclined plate 108, and a magnetic strip is provided on the top of the inclined plate 108 close to the side of the connecting long rod 109, when the connecting long rod 109 moves, the inclined plate 108 is driven to move at the same time; When the flow rate is too fast, the pressure on the pipe wall decreases. Since the bottom of the inclined plate 108 fits against the arc-shaped filling cavity 107, the pressure in the sealed state pushes the inclined plate 108 to move leftward. Because the flow rate is too fast to allow too much medicament to flow into the arc-shaped filling cavity 107, a connecting long rod 109 is connected to the outer wall of the inclined plate 108. The other end of the outer wall of the connecting long rod 109 is connected to a connecting column 1010. A first rack 1020 is fixedly connected to the outer wall of the connecting column 1010. A cylinder 1016 is sleeved on the outer wall of the moving column 1013. A first gear 1011 is fixed to the inner wall of the cylinder 1016. A third rack 1012 that meshes with the first gear 1011 is provided on the outer wall of the moving column 1013 on the side close to the first gear 1011. Since the first gear 1011 meshes with the first rack 1020 and the third rack 1012, When the inclined plate 108 pushes the connecting long rod 109 to move inward, the first rack 1020 moves to drive the first gear 1011 to rotate. After the gear 1011 rotates, it drives the third rack 1012 to move. The third rack 1012 and the connecting column 1010 move in the opposite direction; The third rack 1012 fixed to the moving column 1013 pushes the moving column 1013 to move rightward. Since a convex block 1015 is connected to the front end of the moving column 1013, the protrusion of the convex block 1015 effectively slows down the speed of the medicament flowing from the medicament inlet 102 into the medicament output pipe 3. Since the sizes of the moving column 1013 and the cylinder 1016 are mutually adapted, air or dust entering the adjustment box 106 is reduced, effectively reducing the growth of bacteria during the output of the medicament, making the speed-limiting component 10 in a sealed state. When the flow rate of the medicament is too slow, the medicament will gradually fill the arc-shaped filling cavity 107 and push the arc-shaped filling cavity 107 to move rightward. The moved arc-shaped filling cavity 107 drives the convex block 1015 to move leftward, reducing the situation of too slow flow rate caused by the blockage of the convex block 1015. The establishment of the speed-limiting component 10 ensures that the flow rate in the drainage pipe remains uniform after setting the flow rate. The uniform drainage pipe is convenient for medical staff to more accurately record the drainage volume and drainage time, and facilitates them to judge the development of the disease according to the actual situation of the drainage; When the uniform medicament flows into the placement box 61 from the return pipe 7, due to the impact of the water flow, the circular baffle 65 moves, and the circular baffle 65 drives the rotation shaft 63 fixedly connected to the outer wall to rotate. Since a second gear 69 is provided at the position corresponding to the rotation shaft 63 on the other side of the circular baffle 65, and a second rack 68 that meshes with the second gear 69 is provided on the outer wall of the second gear 69. When the circular baffle 65 is pushed by the flowing medicament, it drives the second gear 69 to rotate. An L-shaped connecting plate 610 is provided at the bottom of the second rack 68. Since the L-shaped connecting plate 610 corresponds to the position of the induction block 1018, the flow rate of the medicament is reflected on the display 103, which is convenient for medical staff to observe and perform subsequent operations in a timely manner, preventing the abnormal flow rate in the pipe caused by the abnormality of the parts in the speed-limiting component 10, resulting in the inability of medical staff to make timely adjustments and delaying the condition.

[0020] Please refer to Figures 3-5 : The speed limit component 10 further includes a medicament inlet 102. A display 103 is provided on the outer wall of the first connecting plate 101. A control button 104 is provided on the outer wall of the first connecting plate 101 on the side close to the display 103. A pull rod 1019 is fixedly connected to the outer wall of the inclined plate 108. An arc-shaped filling cavity 107 is fixedly connected to the outer wall of the adjustment box 106. A cylinder 1016 is provided on the outer wall of the medicament inlet 102 on the side away from the arc-shaped filling cavity 107.

[0021] It should be noted that a cylinder 1016 is provided on the left side of the adjustment box 106, and an arc-shaped filling cavity 107 is provided on the right side. When the liquid medicine flows into the adjustment box 106 through the medicament inlet 102, the convex block 1015 on the inner wall of the cylinder 1016 cooperates with the inclined plate 108 on the inner wall of the arc-shaped filling cavity 107 to effectively control the flow rate of the medicament liquid. The display 103 provided on the outer wall of the first connecting plate 101 is conducive to the patient and medical staff to conveniently check the flow rate of the medicament in the drainage tube. The pull rod 1019 under the display 103 effectively assists the medical staff to control the flow rate, preventing the phenomenon of component failure in the speed limit component 10, increasing the rigor of the equipment, reducing the occurrence of safety accidents, preventing irreversible accidents caused by the inconsistent flow rate in the drainage tube with the actual flow rate, and increasing the safety.

[0022] Please refer to Figures 7-8 : The anti-backflow component 6 further includes a rubber ring 62. The size of the rubber ring 62 is equal to that of the circular baffle 65. A second connecting plate 64 is fixedly connected to the outer wall of the circular baffle 65. A backflow outlet 66 is opened on the inner wall of the placement box 61 on the side close to the rubber ring 62.

[0023] It should be noted that a rubber ring 62 is provided on the inner wall of the placement box 61. When the medicament flows into the patient's body, the establishment of the circular baffle 65 effectively prevents the occurrence of backflow. When the water flow rate controls the opening and closing of the circular baffle 65, when backflow occurs, due to the liquid impact force, the circular baffle 65 moves to the rubber ring 62. Since the size of the rubber ring 62 is equal to that of the circular baffle 65, the backflow liquid cannot flow out from the rubber ring 62. The backflow liquid can only flow out through the backflow outlet 66 into the backflow tube 7, and the backflow tube 7 transports the backflow liquid to the liquid storage box 8, facilitating the medical staff to observe the patient's condition in real time, effectively avoiding the pollution of the drainage tube by the backflow liquid and the entry of bacteria. The discharge of the backflow liquid from another place outside the tube reduces the damage to the patient's health, improves the safety of the equipment, and prevents patient infection. If the drainage fluid backflows, like the liquid containing pollutants such as bacteria returns to the original tissue or body cavity in the body, it will cause infection. The anti-backflow component 6 not only effectively reduces the risk of infection but also ensures the drainage effect.

[0024] Please refer to Figures 1-2:The outer wall of the connection inlet 1 is provided with a plastic connecting pipe 2. The bottom of the medicine output pipe 3 is fixedly connected with a connector 4, and the bottom of the connector 4 is provided with a medicine placement box 5.

[0025] It should be noted that one end of the connection inlet 1 is connected with a plastic connecting pipe 2. The plastic connecting pipe 2 is a plastic flexible pipe. One end of the plastic connecting pipe 2 is connected to the connection inlet 1, and the other end is connected to the medicine output pipe 3. When the patient is in a position with a tricky angle, the material of the plastic connecting pipe 2 effectively prevents the drainage pipe from bending, ensuring the smoothness of drainage. Under normal circumstances, the drainage pipe drains the accumulated fluid and gas in the body out of the body. Once bent, the drainage channel is blocked and it is impossible to continuously and effectively remove the excess fluid and gas in the body, and maintain the normal pressure and environment of the relevant chambers in the body. The plastic connecting pipe 2 connected between the connection inlet 1 and the medicine output pipe 3 effectively increases the stability of the device, preventing the pipe body from bending caused by the drainage pipe being difficult to change the angle when the patient lies on the side or lies flat. The bottom of the medicine output pipe 3 is fixed with a medicine placement box 5, which facilitates the medicine to flow from the medicine placement box 5 into the connector 4. It is not only more convenient for storage, but also because the medicine placement box 5 is a vacuum storage device, reducing the entry of bacteria caused by special medicines being unable to be stored for a long time or being in contact with external air for too long.

[0026] Please refer to Figures 1-2 :The bottom of the reflux pipe 7 is fixedly connected with a liquid storage box 8, and a visual plate 9 is provided on the inner wall of the liquid storage box 8.

[0027] It should be noted that setting the liquid storage box 8 at the bottom of the reflux pipe 7 facilitates the storage of the refluxed liquid. The internal visual plate 9 in the liquid storage box 8 facilitates medical staff to timely check the patient's condition, whether the refluxed liquid is normal and other series of emergencies, avoiding the delay in treatment caused by the failure to timely understand the patient's condition for a long time.

[0028] Please refer to Figures 3-5 :The diameter of the medicine inlet 102 is equal to the diameter of the medicine output pipe 3.

[0029] It should be noted that since the diameter of the medicine inlet 102 is equal to that of the medicine output pipe 3, it effectively avoids the phenomenon of liquid leakage when the liquid in the medicine output pipe 3 enters the adjustment box 106. The inconsistent size at the interface is likely to cause the entry of dust and air.

[0030] Please refer to Figure 1 :The rubber ring 62 is on the same horizontal line as the reflux pipe 7.

[0031] It should be noted that the rubber ring 62 and the reflux pipe 7 are on the same horizontal line, which effectively avoids the phenomenon of liquid leakage when the liquid in the reflux pipe 7 enters the rubber ring 62, and avoids the situation that the water flow enters the inner wall of the placement box 61 but cannot push the circular baffle 65 to move due to inconsistent positions, so that the anti-reflux component 6 cannot assist the speed-limiting component 10 to accurately control the speed.

[0032] Please refer to Figure 1 : A magnetic strip is provided at the top of the inclined plate 108, and a magnet is provided at one end of the connecting long rod 109 close to the inclined plate 108.

[0033] It should be noted that a magnetic strip is provided on one side of the top of the inclined plate 108 close to the connecting long rod 109. When the connecting long rod 109 moves, the inclined plate 108 is driven to move simultaneously.

[0034] Please refer to Figure 1 : The position of the induction block 1018 corresponds to the position of the L-shaped connecting plate 610.

[0035] It should be noted that when the second rack 68 moves to drive the L-shaped connecting plate 610 to move, since the position of the induction block 1018 corresponds to the L-shaped connecting plate 610, the flow rate of the medicament when passing through the circular baffle 65 is reflected on the induction block 1018. The data of the induction block 1018 effectively assists the speed-limiting component 10 to control the speed, and accurately reflects the flow rate controlled by the speed-limiting component 10 on the display 103, which is convenient for medical staff to observe in time, reduces the situation that the flow rate of the medicament cannot be guaranteed due to errors in the speed-limiting component 10 or internal damage of the speed-limiting component 10, and increases the safety and accuracy of the equipment.

[0036] Working principle: During use, the medicine placement box 5 is fixed at the bottom of the medicine output pipe 3, which is convenient for the medicine to flow from the medicine placement box 5 into the connector 4. It is not only more convenient for storage, but also because the medicine placement box 5 is a vacuum storage device, which reduces the entry of bacteria caused by the inability of special medicines to be stored for a long time or contact with external air for too long. When the medicine flows from the medicine placement box 5 into the medicine output pipe 3, the pull rod 1019 under the display 103 effectively assists medical staff to control the flow rate, prevents the phenomenon of parts failure in the speed-limiting component 10, increases the rigor of the equipment, and reduces the occurrence of safety accidents. When medical staff pull the pull rod 1019 and set the medicine flow rate to the specified value, since there are contacts with medicine flow rate values at one end of the outer wall of the control board 105 close to the fixed block 1017, after pulling the pull rod 1019, the fixed block 1017 drives the connecting long rod 109 to move. A magnetic strip is provided on one side of the top of the inclined plate 108 close to the connecting long rod 109. When the connecting long rod 109 moves, the inclined plate 108 is driven to move simultaneously; When the flow rate is too fast, the pressure on the pipe wall decreases. Since the bottom of the inclined plate 108 fits against the arc-shaped filling cavity 107, the pressure in the sealed state pushes the inclined plate 108 to move leftward. Because the flow rate is too fast to allow too much medicament to flow into the arc-shaped filling cavity 107, a connecting long rod 109 is connected to the outer wall of the inclined plate 108, and the other end of the outer wall of the connecting long rod 109 is connected to a connecting column 1010. A first rack 1020 is fixedly connected to the outer wall of the connecting column 1010. A cylinder 1016 is sleeved on the outer wall of the moving column 1013, and a first gear 1011 is fixed to the inner wall of the cylinder 1016. A third rack 1012 meshing with it is provided on the outer wall of the moving column 1013 near the first gear 1011. Since the first gear 1011 meshes with the first rack 1020 and the third rack 1012, When the inclined plate 108 pushes the connecting long rod 109 to move inward, the first rack 1020 moves to drive the first gear 1011 to rotate. After the gear 1011 rotates, it drives the third rack 1012 to move. The third rack 1012 and the connecting column 1010 move in the opposite direction; the third rack 1012 fixed on the moving column 1013 pushes the moving column 1013 to move rightward. Since the convex block 1015 at the front end of the moving column 1013 extends out, the speed of the medicament flowing from the medicament inlet 102 into the medicament output pipe 3 is effectively slowed down. Since the sizes of the moving column 1013 and the cylinder 1016 are mutually adapted, the entry of air or dust into the adjustment box 106 is reduced, effectively reducing the growth of bacteria during the output of the medicament, making the speed-limiting component 10 in a sealed state. When the flow rate of the medicament is too slow, the medicament will gradually fill the arc-shaped filling cavity 107 and push the arc-shaped filling cavity 107 to move rightward. The moved arc-shaped filling cavity 107 drives the convex block 1015 to move leftward, reducing the situation of too slow flow rate caused by the blockage of the convex block 1015. The establishment of the speed-limiting component 10 ensures that a uniform state is always maintained in the drainage tube after setting the flow rate. The uniform drainage tube is convenient for medical staff to more accurately record the drainage volume and drainage time, and is convenient for them to judge the development of the disease according to the actual situation of the drainage; When the uniform medicament flows into the placement box 61 from the reflux pipe 7, when the medicament flows into the patient's body, since the size of the rubber ring 62 is equal to that of the circular baffle 65, the reflux liquid cannot flow out from the rubber ring 62. The reflux liquid can only flow out from the reflux outlet 66 into the reflux pipe 7. The reflux pipe 7 transports the reflux liquid to the liquid storage box 8, effectively avoiding the pollution of the drainage pipe by the reflux liquid and preventing bacteria from entering. The discharge of the reflux liquid from another place outside the pipe reduces the damage to the patient's health. Due to the impact of the water flow driving the circular baffle 65 to move, the circular baffle 65 drives the rotation of the rotating shaft 63 fixedly connected to the outer wall. Since a second gear 69 is provided at a position corresponding to the rotating shaft 63 on the other side of the circular baffle 65, when the circular baffle 65 is pushed by the flowing-in medicament, it drives the second gear 69 to rotate. Since the position of the L-shaped connecting plate 610 corresponds to that of the induction block 1018, the rate of the second gear 69 driven by the water flow velocity causes the flow rate of the medicament to be reflected on the display 103 by the L-shaped connecting plate 610, which is convenient for medical staff to observe and perform subsequent operations in a timely manner, preventing the abnormal flow rate in the pipe caused by the abnormality of the parts in the speed limit component 10, resulting in the inability of medical staff to make timely adjustments; The liquid storage box 8 is arranged at the bottom of the reflux pipe 7 for storing the reflux liquid. A visual plate 9 is provided inside the liquid storage box 8 to facilitate medical staff to timely check the patient's condition, such as whether the reflux liquid is normal and a series of emergency situations, and avoid delaying treatment due to the failure to timely understand the patient's condition for a long time.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage tube flow rate control structure, including a connecting pipe inlet (1), characterized in that: The outer wall of the pipe inlet (1) is provided with a medicine output pipe (3), and the outer wall of the medicine output pipe (3) is provided with a backflow prevention component (6); The anti-backflow assembly (6) comprises a placement box (61) located on the outer wall of the medicine output pipe (3), the inner wall of the placement box (61) is provided with a backflow outlet (66), the outer wall of the backflow outlet (66) is provided with a backflow pipe (7), a rotating shaft (63) is provided inside the placement box (61), a circular baffle (65) is rotatably provided on the rotating shaft (63), a second gear (69) is installed at one end of the rotating shaft (63), a fixing plate (67) passes through the placement box (61), a second rack (68) meshing with the second gear (69) is provided inside the fixing plate (67), and an L-shaped connecting plate (610) is provided at the bottom of the second rack (68); The outer wall of the medicine output tube (3) is provided with a speed limiting assembly (10) on a side close to the placement box (61), the speed limiting assembly (100) comprising a first connecting plate (101) located on the outer wall of the medicine output tube (3), the outer wall of the first connecting plate (101) being fixedly connected to a control panel (105), the outer wall of the control panel (105) being provided with an adjustment box (106), the bottom of the control panel (105) being provided with a fixing block (1017), the outer wall of the fixing block (1017) being fixedly connected to a connecting long rod (109), the bottom of the connecting long rod (109) being provided with an inclined plate (108), the other end of the outer wall of the connecting long rod (109) being provided with a connecting column (1010), the outer wall of the connecting column (1010) A first rack (1020) is fixedly connected, and a first gear (1011) is fixedly connected. The outer wall of the first rack (1020) is fixedly connected to a moving column (1013). The outer wall of the moving column (1013) is sleeved with a cylinder (1016). The inner wall of the cylinder (1016) is fixedly connected to the first gear (1011) on a side close to the first rack (1020). The outer wall of the first gear (1011) is provided with a third rack (1012) meshing therewith. The outer wall of the moving column (1013) is provided with a connecting rod (1014). The outer wall of the connecting rod (1014) is fixedly connected to a protrusion (1015). The surface of the control panel (105) is provided with a sensing block (1018).

2. The flow rate control structure of a drainage tube according to claim 1, wherein: The speed limiting component (10) also includes a medicine inlet (102), the outer wall of the first connecting plate (101) is provided with a display (103), the outer wall of the first connecting plate (101) is provided with a control button (104) on a side close to the display (103), the outer wall of the inclined plate (108) is fixedly connected to a pull rod (1019), the outer wall of the regulating box (106) is fixedly connected to an arc-shaped filling cavity (107), and the outer wall of the medicine inlet (102) is provided with a cylinder (1016) on a side away from the arc-shaped filling cavity (107).

3. The flow rate control structure of a drainage tube according to claim 1, wherein: The backflow prevention assembly (6) further comprises a rubber ring (62) having a size equal to that of the circular baffle (65); a second connecting plate (64) is fixedly connected to the outer wall of the circular baffle (65); and a backflow outlet (66) is provided on the inner wall of the placement box (61) at a side close to the rubber ring (62).

4. The flow rate control structure of a drainage tube according to claim 1, characterized in that: The outer wall of the pipe inlet (1) is provided with a plastic connecting pipe (2), the bottom of the medicine output pipe (3) is fixedly connected with a connecting head (4), and the bottom of the connecting head (4) is provided with a medicine placement box (5).

5. The flow rate control structure of a drainage tube according to claim 1, characterized in that: The bottom of the reflux pipe (7) is fixedly connected to a liquid storage box (8), and the inner wall of the liquid storage box (8) is provided with a visual panel (9).

6. The flow rate control structure of a drainage tube according to claim 2, wherein: The diameter of the medicine inlet (102) is equal to the diameter of the medicine output tube (3).

7. The flow rate control structure of a drainage tube according to claim 3, characterized in that: The rubber ring (62) and the return pipe (7) are located on the same horizontal line.

8. A flow rate control structure for a drainage tube according to claim 1, characterized in that: A magnetic strip is provided on the top of the inclined plate (108), and a magnet is provided on one end of the connecting long rod (109) close to the inclined plate (108).

9. The flow rate control structure of a drainage tube according to claim 3, characterized in that: The position of the sensing block (1018) corresponds to the position of the L-shaped connecting plate (610).

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