Medical clinical drainage device for preventing drainage pipeline from being blocked

Abstract

The invention relates to the technical field of medical clinical drainage, and discloses a medical clinical drainage device for preventing a drainage pipeline from being blocked, which comprises a negative pressure bottle, a hose arranged at the top of the negative pressure bottle, a pushing mechanism arranged at the bottom of the hose, and an adjusting mechanism arranged in the pushing mechanism, the pushing mechanism comprises a driving unit, a speed limiting unit arranged on the side, away from the hose, of the driving unit, and an execution unit arranged on the side, close to the hose, of the driving unit. The driving unit comprises a shell arranged at the bottom of the hose, a partition plate arranged on the inner wall of the shell and a supporting plate arranged on the side, away from the hose, of the inner wall of the shell. By arranging the pushing mechanism, manual extrusion operation can be replaced, the problem of uneven force or unstable frequency possibly occurring in manual operation is avoided, and the extrusion amplitude and frequency of the hose can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of medical clinical drainage, and particularly to a medical clinical drainage device for preventing drainage pipe blockage. Background Art

[0002] Clinical drainage devices are key equipment used in the medical process to drain accumulated fluid, gas, or secretions from the body. They are widely used in postoperative care, trauma treatment, infection control, etc. Their core function is to physically drain abnormal accumulations of fluid or gas in the body to the outside, so as to promote tissue healing, prevent infection, and maintain normal physiological functions. The drainage device usually consists of a drainage tube, a connecting tube, and a drainage container. According to different uses, the drainage tube has different materials and designs. Commonly, it is made of silicone or rubber, which is soft and has high biocompatibility to reduce irritation to tissues. The drainage container is used to collect the drainage, usually made of transparent plastic, which is convenient for medical staff to observe the volume, color, and nature of the drainage fluid, so as to evaluate the patient's recovery situation.

[0003] Traditional clinical drainage devices are widely used in the engineering field. However, due to the limitations of their structure and working principle, there are often some problems that cannot be ignored. For example, during the dredging process of traditional clinical drainage devices, medical staff usually need to manually squeeze the drainage tube to remove blockages and ensure smooth drainage. However, this operation method has many limitations. First of all, the amplitude and frequency of squeezing completely depend on the operator's experience and technique, and it is difficult to maintain uniformity, which may lead to unstable drainage effects. Secondly, manual squeezing has high technical requirements for the operator. If the force is improper, it may cause the liquid in the drainage tube to flow back, increasing the risk of infection, especially in postoperative or trauma care with high aseptic environment requirements, this risk is particularly prominent. In addition, the pulling amplitude of the drainage tube during manual squeezing is relatively large, which is likely to cause discomfort or even injury to the patient. Especially for patients with postoperative wounds or sensitive parts, this pulling may delay the healing process or cause new complications. These defects of traditional drainage devices not only increase the workload of medical staff but also may affect the patient's rehabilitation effect. Summary of the Invention

[0004] In view of the problems in the prior art that manual squeezing is prone to uneven force causing infection and is likely to pull the patient's wound, a medical clinical drainage device for preventing drainage pipe blockage is proposed.

[0005] Its purpose is to replace manual squeezing with a mechanical device to ensure uniform squeezing force and reduce interference with the patient's wound.

[0006] The technical solution of the present invention is a medical clinical drainage device for preventing drainage pipeline blockage, including a negative pressure bottle, a hose arranged at the top of the negative pressure bottle, a pushing mechanism arranged at the bottom of the hose, and an adjusting mechanism arranged inside the pushing mechanism;

[0007] The pushing mechanism includes a driving unit, a speed limiting unit arranged on the side of the driving unit away from the hose, and an execution unit arranged on the side of the driving unit close to the hose;

[0008] The driving unit includes a housing arranged at the bottom of the hose, a partition arranged on the inner wall of the housing, a support plate arranged on the side of the inner wall of the housing away from the hose, a through hole opened at the top of the support plate, a rotating shaft arranged inside the through hole, two eccentric wheels linearly arranged at the top and bottom of the rotating shaft, a ratchet wheel arranged at the top of the rotating shaft, a pawl arranged on the side of the ratchet wheel away from the hose, a support shaft arranged inside the pawl, the top of the support shaft is fixedly connected to the inner wall of the housing, a torsion spring sleeved outside the support shaft, both ends of the torsion spring are fixedly connected to the support shaft and the pawl respectively, a round hole opened at the bottom of the housing on the side away from the hose, a handwheel arranged on the inner wall of the round hole, a plug arranged at the bottom of the handwheel, and a winding spring arranged at the top of the handwheel, both ends of the winding spring are fixedly connected to the top of the handwheel and the bottom end of the rotating shaft respectively.

[0009] Further, one side of the top of the housing close to the hose is provided with an inclined block, and the side of the inclined block close to the hose is an arc surface.

[0010] Further, the speed limiting unit includes two guiding holes opened on the front side of the housing, a clamping block arranged inside the guiding holes, and a bolt arranged on the front side of the clamping block, and the rear side of the clamping block is slidably connected to the middle part of the rotating shaft.

[0011] Further, a threaded hole is opened on the front side of the clamping block, and the outer shape of the clamping block is U-shaped.

[0012] Further, the execution unit includes two push rods symmetrically arranged at the top and bottom of the partition, one side of the push rod close to the rotating shaft abuts against the eccentric wheel, a spring sleeved outside the push rod, both ends of the spring are fixedly connected to the push rod and the partition respectively, and a moving block jointly arranged on the side of the two push rods away from the eccentric wheel.

[0013] Further, the height of the moving block matches the height of the inner wall of the housing, and a cavity is opened on the side of the moving block close to the hose.

[0014] Further, the adjusting mechanism includes a bidirectional lead screw arranged inside the moving block, two sliders symmetrically arranged at the top and bottom of the bidirectional lead screw, a connecting rod hinged to the side of the slider away from the bidirectional lead screw, a pressing block hinged to the end of the connecting rod away from the slider, a knob arranged at the bottom of the bidirectional lead screw, and a long hole opened on the side of the bottom of the housing close to the hose, and the bottom of the knob is slidably connected to the inner wall of the long hole.

[0015] Furthermore, the width of the long hole matches the diameter of the top of the knob, and the length of the long hole is greater than the movable distance of the movable block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a pushing mechanism, it can replace manual extrusion operation, and perform standardized and uniform extrusion on the drainage tube. Through preset mechanical actions, this mechanism ensures that the force and frequency of each extrusion remain consistent, avoiding problems such as uneven force or unstable frequency that may occur in manual operations. The use of this mechanism reduces the interference of human factors, avoids the backflow of liquid in the tube caused by improper force, reduces the risk of operation errors, and at the same time reduces the physical burden of medical staff, making the entire extrusion process more efficient and controllable, ensuring the patency of the drainage tube, and improving the standardization and safety of the overall medical operation.

[0018] 2. By setting up an adjustment mechanism, the drainage device can adjust the extrusion amplitude of the hose, so as to meet the extrusion and dredging requirements in different scenarios, ensuring that the extrusion process can effectively dredge the drainage tube without damaging the hose or affecting the drainage effect due to excessive extrusion, and adapting to different medical needs or patient conditions.

[0019] 3. By setting up a speed-limiting unit, the drainage device can flexibly adjust the extrusion frequency when extruding and dredging the drainage tube, so as to better meet the specific needs of different patients. The core function of the speed-limiting unit is to control the speed and rhythm of the extrusion action, ensuring that the operation is both efficient and safe. For situations that require rapid dredging, the speed-limiting unit can increase the frequency and speed up the extrusion to quickly solve the problem of drainage tube blockage. For sensitive or patients with complex conditions, the speed-limiting unit can reduce the frequency to make the extrusion action gentler, avoiding unnecessary stimulation or discomfort to the patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention;

[0021] Figure 2 is an enlarged view of the pushing mechanism of the present invention;

[0022] Figure 3 is a schematic diagram of the internal structure of the housing of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the driving unit of the present invention;

[0024] Figure 5 is a schematic diagram of the connection between the ratchet and the pawl of the present invention;

[0025] Figure 6Schematic diagram of the connection between the bolt and the handwheel of the present invention;

[0026] Figure 7 Enlarged view of the long hole of the present invention;

[0027] Figure 8 Schematic diagram of the connection between the support plate and the outer shell of the present invention;

[0028] Figure 9 Schematic diagram of the clamping block structure of the present invention;

[0029] Figure 10 Schematic diagram of the overall structure of the adjusting mechanism of the present invention;

[0030] Figure 11 Schematic diagram of the moving block structure of the present invention;

[0031] Figure 12 Schematic diagram of the connection between the bidirectional lead screw and the outer shell of the present invention.

[0032] In the figure:

[0033] 1, negative pressure bottle; 2, hose; 3, pushing mechanism; 4, adjusting mechanism; 31, outer shell; 32, partition board; 33, support plate; 34, through hole; 35, rotating shaft; 36, eccentric wheel; 37, ratchet wheel; 38, ratchet pawl; 39, support shaft; 310, torsion spring; 311, round hole; 312, handwheel; 313, clockwork spring; 314, inclined block; 315, guiding hole; 316, clamping block; 317, bolt; 318, push rod; 319, spring; 320, moving block; 321, bolt; 41, bidirectional lead screw; 42, slider; 43, connecting rod; 44, pressing block; 45, knob; 46, long hole. Detailed implementation manners

[0034] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0035] Example 1, refer to Figures 1-12, which is the first embodiment of the present invention, provides a medical clinical drainage device for preventing drainage pipe blockage, including a negative pressure bottle 1, a hose 2 fixedly connected to the top of the negative pressure bottle 1, a pushing mechanism 3 fixedly connected to the bottom of the hose 2, and an adjusting mechanism 4 fixedly connected inside the pushing mechanism 3; the pushing mechanism 3 includes a driving unit, a speed limiting unit slidably connected to the side of the driving unit away from the hose 2, and an execution unit abutted against the side of the driving unit close to the hose 2; the driving unit includes a housing 31 fixedly connected to the bottom of the hose 2, a partition 32 fixedly connected to the inner wall of the housing 31, a support plate 33 fixedly connected to the inner wall of the housing 31 away from the hose 2, a through hole 34 opened at the top of the support plate 33, a rotating shaft 35 rotatably connected to the inside of the through hole 34, two eccentric wheels 36 fixedly connected to the top and bottom of the rotating shaft 35 in a linear array, a ratchet wheel 37 fixedly connected to the top of the rotating shaft 35, a pawl 38 meshingly connected to the side of the ratchet wheel 37 away from the hose 2, a support shaft 39 rotatably connected to the inside of the pawl 38, the top of the support shaft 39 being fixedly connected to the inner wall of the housing 31, a torsion spring 310 sleeved on the outside of the support shaft 39, both ends of the torsion spring 310 being fixedly connected to the support shaft 39 and the pawl 38 respectively, a circular hole 311 opened at the bottom of the housing 31 away from the hose 2, a hand wheel 312 rotatably connected to the inner wall of the circular hole elligible, a plug 321 slidably connected to the bottom of the hand wheel 312, and a clock spring 313 fixedly connected to the top of the hand wheel 312, both ends of the clock spring 313 being fixedly connected to the top of the hand wheel 312 and the bottom end of the rotating shaft 35 respectively.

[0036] Specifically, pull down the bolt 321 to release its connection with the housing 31. Wind up the spring 313 by rotating the handwheel 312. The spring 313 transmits the acting force to the rotating shaft 35. Since the rotating shaft 35 is restricted by the ratchet 37 and the pawl 38, it will remain stationary. After rotating the handwheel 312 by any number of turns, insert the bolt 321 into the bottom of the housing 31 to limit the handwheel 312. Then push the pawl 38. After the pawl 38 is stressed, it will rotate around the pivot shaft 39 and wind up the torsion spring 310 at the same time. After the pawl 38 rotates, it disengages from the ratchet 37, thus releasing the restriction on the rotating shaft 35. At this time, the rotating shaft 35 will rotate under the action of the spring 313, and the eccentric wheel 36 will rotate at the same time. The rotating shaft 35 will not stop rotating until the spring 313 releases all its energy. At this time, the near and far sides of the eccentric wheel 36 from the axis of the rotating shaft 35 will remain in contact with the push rod 318. Then release the pawl 38, and the pawl 38 will return to engage with the ratchet 37 under the action of the torsion spring 310. The setting of the extrusion mechanism 3 can replace the manual extrusion operation and perform a standardized and uniform extrusion on the drainage tube. Through the preset mechanical actions, the force and frequency of each extrusion are ensured to be consistent, avoiding the problems of uneven force or unstable frequency that may occur in manual operations. The use of this mechanism reduces the interference of human factors, avoids the backflow of the liquid in the tube caused by improper force, reduces the risk of operation errors, and also reduces the physical burden of medical staff, making the whole extrusion process more efficient and controllable, ensuring the patency of the drainage tube, and improving the standardization and safety of the overall medical operation.

[0037] Refer to Figure 2 and Figure 3 As shown in FIGS.

[0038] Specifically, by pressing the hose 2 against the arc surface of the inclined block 314, the hose 2 can be blocked, disconnecting the connection between the end of the hose 2 inside the patient's body and the negative pressure bottle 1, so that the pressure fluctuation generated during the extrusion of the hose 2 will not be affected by the internal pressure difference of the negative pressure bottle 1, ensuring that the extrusion of the hose 2 can achieve the expected effect of dredging and preventing blockage.

[0039] Refer to Figure 2 and Figure 9 As shown in FIGS.

[0040] Specifically, the two guiding holes 315 can control the fitting force and frictional force between the extrusion control clamping block 316 and the rotating shaft 35, thereby regulating the rotation speed of the rotating shaft 35. The setting of the speed limiting unit enables the drainage device to flexibly adjust the extrusion frequency when dredging the drainage tube, so as to better meet the specific needs of different patients. The core function of the speed limiting unit is to control the speed and rhythm of the extrusion action, ensuring that the operation is both efficient and safe. For situations that require rapid dredging, the speed limiting unit can increase the frequency and accelerate the extrusion speed to quickly solve the problem of drainage tube blockage. For sensitive or patients with complex conditions, the speed limiting unit can reduce the frequency to make the extrusion action gentler and avoid causing unnecessary irritation or discomfort to the patients.

[0041] Referring to Figure 9 , a screw hole is provided on the front side of the clamping block 316, and the outer shape of the clamping block 316 is U-shaped.

[0042] Specifically, the end of the bolt 317 passes through the screw hole and abuts against the outer shell 31, thereby positioning the clamping block 316. The rear end of the clamping block 316 can be connected to the middle part of the rotating shaft 35 by clamping. By changing the frictional force between the clamping block 316 and the rotating shaft 35, the rotation speed of the rotating shaft 35 can be controlled. The faster the rotation speed of the rotating shaft 35, the faster the extrusion frequency of the eccentric wheel 36 on the push rod 318, and the faster the extrusion frequency of the pressing block 44 on the hose 2. If the rotation speed of the rotating shaft 35 is slow, the extrusion frequency of the pressing block 44 on the hose 2 is slow.

[0043] Referring to Figure 3 and Figure 10 , the execution unit includes two push rods 318 that are symmetrically and slidably connected to the top and bottom of the partition 32. One side of the push rod 318 close to the rotating shaft 35 abuts against the eccentric wheel 36. A spring 319 sleeved on the outer side of the push rod 318, with both ends of the spring 319 fixedly connected to the push rod 318 and the partition 32 respectively, and a moving block 320 that is fixedly connected to the sides of the two push rods 318 away from the eccentric wheel 36.

[0044] Specifically, while the eccentric wheel 36 rotates, it squeezes the push rod 318. The push rod 318 stores energy in the spring 319 and pushes the moving block 320 to move. The moving block 320 transmits the acting force to the connecting rod 43 through the bidirectional lead screw 41 and the slider 42, and the connecting rod 43 pushes the pressing block 44 to squeeze the hose 2. The spring 319 can make the push rod 318 move towards the direction close to the eccentric wheel 36, so that the push rod 318 always maintains the connection with the eccentric wheel 36.

[0045] Referring to Figure 3 and Figure 11 , the height of the moving block 320 matches the height of the inner wall of the outer shell 31, and a cavity is provided on one side of the moving block 320 close to the hose 2.

[0046] Specifically, the cavity of the moving block 320 can accommodate the bidirectional lead screw 41 and the slider 42 to move inside. The top and bottom of the moving block 320 are in contact with the inner wall of the outer shell 31, reducing the shaking when the moving block 320 displaces. Constrained by the inner wall of the outer shell 31, the outside of the moving block 320 can only move synchronously along the moving direction of the push rod 318. By constraining the moving block 320 through the outer shell 31, the vibration generated when the moving block 320 moves can be reduced.

[0047] Embodiment 2, referring to Figure 10 and Figure 12 , is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the adjusting mechanism 4 includes a bidirectional lead screw 41 rotatably connected to the inside of the moving block 320, two sliders 42 symmetrically meshed and connected to the top and bottom of the bidirectional lead screw 41, a connecting rod 43 hinged to the side of the slider 42 away from the bidirectional lead screw 41, a pressing block 44 hinged to the end of the connecting rod 43 away from the slider 42, a knob 45 fixedly connected to the bottom of the bidirectional lead screw 41, and a long hole 46 opened at the bottom of the outer shell 31 near the hose 2. The bottom of the knob 45 is slidably connected to the inner wall of the long hole 46.

[0048] Specifically, the bidirectional lead screw 41 is driven to rotate by the knob 45. While the bidirectional lead screw 41 rotates, it drives the two sliders 42 to approach or move away from each other. When the two sliders 42 approach each other, the pressing block 44 will be pushed towards the direction close to the hose 2 through the two connecting rods 43, thereby increasing the extrusion amplitude of the hose 2, enabling the extruded part of the hose 2 to discharge more liquid and increasing the intensity of flushing impurities. When the two sliders 42 move away from each other, the pressing block 44 moves away from the hose 2, reducing the extrusion amplitude of the pressing block 44 on the hose 2 and the liquid discharge volume of the extruded part of the hose 2, reducing the discomfort caused by the pressure and liquid flow changes in the hose 2. By the way of squeezing the hose 2 with the pressing block 44, it is possible to avoid causing severe pulling on the hose 2 during the squeezing process, preventing secondary trauma to the patient's wound and possible discomfort. At the same time, the requirements for the experience and technology of the operator are reduced, improving work efficiency. The setting of the adjusting mechanism 4 enables the drainage device to adjust the extrusion amplitude of the hose 2, thereby meeting the extrusion and dredging requirements in different scenarios, ensuring that the extrusion process can effectively dredge the drainage tube without damaging the hose 2 or affecting the drainage effect due to excessive extrusion, and adapting to different medical needs or patient conditions.

[0049] Referring to Figure 2 and Figure 7 , the width of the long hole 46 matches the diameter of the top of the knob 45, and the length of the long hole 46 is greater than the movable distance of the moving block 320.

[0050] Specifically, the long hole 46 can accommodate the knob 45 to move inside. When the knob 45 moves to the maximum stroke along with the moving block 320 and the bidirectional lead screw 41, it is still within the range of the long hole 46. The long hole 46 enables the interior of the housing 31 to communicate with the outside world, keeps the air pressure inside and outside the housing 31 balanced, and prevents difficult exhaust of the sealed environment from affecting the extrusion effect of the pressing block 44 on the hose 2. The remaining structures are the same as those in Embodiment 1.

[0051] Combined with Embodiments 1-2, the working principle of the present invention is as follows: The operator places the pulp of the thumb on the arc surface of the inclined block 314 and holds the outer shell 31 with the palm. When the drainage tube needs to be dredged, the operator presses the hose 2 against the arc surface of the inclined block 314 with the thumb, so that the top of the hose 2 is separated from the negative pressure bottle 1. Then, the bolt 321 is pulled out from the bottom of the outer shell 31, and the handwheel 312 is rotated. While the handwheel 312 rotates, the clockwork spring 313 is wound up. The clockwork spring 313 transmits the acting force to the rotating shaft 35. Since the rotating shaft 35 is restricted by the ratchet wheel 37 and the pawl 38, it will remain stationary. After the handwheel 312 rotates a certain number of turns, the bolt 321 is inserted into the bottom of the outer shell 31, or the handwheel 312 is fixed by hand. Then, the index finger of the hand holding the outer shell 31 is used to push the pawl 38. After being stressed, the pawl 38 will rotate around the support shaft 39 and wind up the torsion spring 310 while rotating. After the pawl 38 rotates, its engagement with the ratchet wheel 37 is released. At this time, since the rotating shaft 35 loses the restraint formed by the ratchet wheel 37 and the pawl 38, the rotating shaft 35 will start to rotate under the action of the clockwork spring 313. While the rotating shaft 35 rotates, it drives the eccentric wheel 36 to rotate. While the eccentric wheel 36 rotates, it presses the push rod 318 to make it move. While the push rod 318 moves, it squeezes the spring 319 and pushes the moving block 320 to move synchronously. The moving block 320 pushes the connecting rod 43 through the bidirectional lead screw 41 and the slider 42, and the connecting rod 43 pushes the pressing block 44 to squeeze the hose 2. After the hose 2 is squeezed, the pressure and liquid flow inside it change, so as to impact the foreign matter blocking the pipeline and prevent the foreign matter from accumulating and blocking the pipeline. After the extrusion is completed, it is confirmed that the top of the bolt 321 has been inserted into the bottom of the outer shell 31, and then the pawl 38 is released. The pawl 38 will resume its engagement with the ratchet wheel 37 under the action of the torsion spring 310, so that the rotating shaft 35 is fixed. At this time, the clockwork spring 313 is not wound up, and the side of the eccentric wheel 36 closer to the axis of the rotating shaft 35 faces the push rod 318. The push rod 318 also returns to its original position under the action of the spring 319, so as to maintain contact with the eccentric wheel 36. By rotating the bolt 317, the bolt 317 is no longer in contact with the outer shell 31, and the fixation of the clamping block 316 by the bolt 317 can be released. By pushing the clamping block 316 upward, the clamping block 316 will expand under the action of the guiding hole 315, so as to reduce the friction force between the contact position of the clamping block 316 and the rotating shaft 35, making the rotating speed of the rotating shaft 35 faster than when the clamping block 316 is at the bottom of the guiding hole 315. Then, the bolt 317 is rotated so that the bolt 317 abuts against the outer shell 31, thereby fixing the clamping block 316. By adjusting the position of the clamping block 316, the rotating speed of the rotating shaft 35 can be controlled. When it is necessary to control the amplitude of the pressing block 44 squeezing the hose 2, the bidirectional lead screw 41 is rotated by rotating the knob 45. While the bidirectional lead screw 41 rotates, it drives the two sliders 42 to approach or move away from each other. When the two sliders 42 approach each other, they will push the pressing blockThus, when squeezing the hose 2, a greater elastic deformation of the hose 2 can be caused, resulting in greater internal pressure fluctuations of the hose 2. When the two sliders 42 move away from each other, the pressing block 44 will be pulled by the two connecting rods 43, causing the pressing block 44 to move away from the hose 2. When squeezing the hose 2, the internal pressure fluctuations of the hose 2 will be smaller, thus adapting to different squeezing requirements.

[0052] 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 preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A medical clinical drainage device for preventing drainage pipeline blockage, comprising a negative pressure bottle (1) and a hose (2) arranged at the top of the negative pressure bottle (1), characterized in that: It further includes a pushing mechanism (3) arranged at the bottom of the hose (2), and an adjusting mechanism (4) arranged inside the pushing mechanism (3); The pushing mechanism (3) includes a driving unit, a speed limiting unit arranged on the side of the driving unit away from the hose (2), and an execution unit arranged on the side of the driving unit close to the hose (2); The driving unit includes a housing (31) arranged at the bottom of the hose (2), a partition plate (32) arranged on the inner wall of the housing (31), a support plate (33) arranged on the inner wall of the housing (31) on the side away from the hose (2), a through hole (34) opened at the top of the support plate (33), a rotating shaft (35) arranged inside the through hole (34), two eccentric wheels (36) linearly arrayed at the top and bottom of the rotating shaft (35), a ratchet wheel (37) arranged at the top of the rotating shaft (35), a ratchet pawl (38) arranged on the side of the ratchet wheel (37) away from the hose (2), a support shaft (39) arranged inside the ratchet pawl (38), the top of the support shaft (39) is fixedly connected to the inner wall of the housing (31), a torsion spring (310) sleeved outside the support shaft (39), both ends of the torsion spring (310) are fixedly connected to the support shaft (39) and the ratchet pawl (38) respectively, a round hole (311) opened at the bottom of the housing (31) on the side away from the hose (?) [It should be noted that there may be a typo in the original text, assuming it's "hose (2)" here], a handwheel (312) arranged on the inner wall of the round hole (311), a plug pin (321) arranged at the bottom of the handwheel (312), and a clockwork spring (313) arranged at the top of the handwheel (312), both ends of the clockwork spring (313) are fixedly connected to the top of the handwheel (312) and the bottom end of the rotating shaft (35) respectively.

2. The medical clinical drainage device for preventing blockage of a drainage pipeline according to claim 1, wherein: On the side of the top of the housing (31) close to the hose (2), there is an inclined block (314), and the side of the inclined block (314) close to the hose (2) is an arc surface.

3. The medical clinical drainage device for preventing blockage of a drainage pipeline according to claim 1, wherein: The speed limiting unit includes two guiding holes (315) opened on the front side of the housing (31), a clamping block (316) arranged inside the guiding holes (315), and a bolt (317) arranged on the front side of the clamping block (316), and the rear side of the clamping block (316) is slidably connected to the middle part of the rotating shaft (35).

4. The medical clinical drainage device for preventing drainage pipeline blockage according to claim 3, wherein: On the front side of the clamping block (316), there is a threaded hole, and the outer shape of the clamping block (316) is U-shaped.

5. The medical clinical drainage device for preventing drainage pipeline blockage according to claim 1, wherein: The execution unit includes two push rods (318) symmetrically arranged at the top and bottom of the partition plate (32), the side of the push rod (318) close to the rotating shaft (35) abuts against the eccentric wheel (36), a spring (319) sleeved outside the push rod (318), both ends of the spring (319) are fixedly connected to the push rod (318) and the partition plate (32) respectively, and a moving block (320) jointly arranged on the side of the two push rods (318) away from the eccentric wheel (36).

6. The medical clinical drainage device for preventing drainage pipeline blockage according to claim 5, characterized in that: The height of the moving block (320) matches the height of the inner wall of the housing (31), and a cavity is opened on the side of the moving block (320) close to the hose (2).

7. The medical clinical drainage device for preventing drainage pipeline blockage according to claim 1, characterized in that: The adjusting mechanism (4) includes a bidirectional lead screw (41) disposed inside the moving block (320), two sliders (42) symmetrically arranged at the top and bottom of the bidirectional lead screw (41), a connecting rod (43) hinged to the side of the slider (42) away from the bidirectional lead screw (41), a pressing block (44) hinged to one end of the connecting rod (43) away from the slider (42), a knob (45) disposed at the bottom of the bidirectional lead screw (41), and an elongated hole (46) formed in the bottom of the housing (31) near the hose (2). The bottom of the knob (45) is slidably connected to the inner wall of the elongated hole (46).

8. The medical clinical drainage device for preventing drainage pipeline blockage according to claim 7, characterized in that: The width of the elongated hole (46) matches the diameter of the top of the knob (45), and the length of the elongated hole (46) is greater than the movable distance of the moving block (320).

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