Accurate quantitative infusion device

Abstract

The invention relates to the technical field of medical devices, in particular to an accurate quantitative infusion device which comprises an upper-stage cylinder, a lower-stage cylinder is connected to the bottom of the upper-stage cylinder in a buckled mode, a rotary clamping plate is rotatably connected to the top of the upper-stage cylinder, a supporting plate is connected to the interior of the upper-stage cylinder in a buckled mode, and a speed adjusting device is connected to the bottom of the supporting plate. A speed adjusting device is arranged in the upper-stage barrel, a stirring mechanism is connected to one side of the speed adjusting device in a meshed mode, a speed-measuring water level descending mechanism is arranged in the lower-stage barrel, a water dripping hole is formed in the bottom of the upper-stage barrel, a water conveying hole is formed in the bottom of the lower-stage barrel, and the water dripping hole is completely communicated with the water conveying hole. The water outlet of the water dripping hole is reduced and increased by utilizing the conical speed regulating block to gradually go deep into or away from the water dripping hole, so that the water outlet flow is reduced or increased, the liquid outlet speed of the water dripping hole is reduced or increased, and the speed regulation of the water dripping hole is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a precise quantitative infusion device. Background Art

[0002] In traditional infusion methods, the infusion speed may be affected by multiple factors such as pressure, gravity and inner diameter of the pipeline, resulting in unstable infusion speed and easy to produce errors. When infusing chemotherapy, blood products or other special drugs, the control of infusion speed and dosage is extremely demanding. Precision quantitative infusion devices can meet these complex treatment needs and ensure that the drugs can be delivered to the patient safely and accurately. For patients who require long-term infusion, precision quantitative infusion devices can maintain a stable infusion speed and avoid treatment errors caused by dose accumulation, thereby improving treatment effects. The use of precision quantitative infusion devices can reduce infusion errors and adverse reactions caused by improper manual operation, thereby improving nursing quality and patient satisfaction.

[0003] A precise quantitative infusion device is generally composed of a drug liquid inlet part, a drip rate regulator and a drug liquid outlet part. The drug liquid inlet part is located above the drip rate regulator. The drip rate regulator is connected between the inlet part and the outlet part and is the core component of the device. The drug liquid outlet part is located below the drip rate regulator. In scenarios such as intravenous chemotherapy that require precise control of drug dosage, this device also has significant advantages.

[0004] At present, the existing flow rate regulator is mainly achieved by squeezing the infusion hose and changing the cross-sectional area of ​​the infusion hose, such as using a clamp to squeeze the hose. However, when this method adjusts the infusion rate, the hose is easy to deform and stick, and it is easy to stick together after being squeezed flat, and it cannot be adjusted in a timely and accurate manner. At the same time, for some suspension drugs, such as suspension insulin, they may contain insoluble solid drug particles, which may precipitate or stratify after being stationary for a long time. In order to ensure that the drug components are evenly mixed and achieve the expected therapeutic effect, such drugs need to be shaken before use or during infusion, which cannot be done by the existing flow rate regulator. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a precise quantitative infusion device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: a precise quantitative infusion device, comprising an upper tube, the bottom buckle of the upper tube is connected to the lower tube, the bottom of the lower tube is connected to the lower water pipe, the upper part of the lower tube is connected to the upper water pipe, the top of the upper tube is rotatably connected to a rotating card plate, the inner buckle of the upper tube is connected to a support plate, the bottom of the support plate is connected to a speed regulating device, the speed regulating device controls the dripping speed of liquid, one side of the speed regulating device is meshedly connected to a stirring mechanism, the stirring mechanism stirs the liquid inside the upper tube evenly, the lower tube is provided with a speed measuring water level drop mechanism, the bottom of the upper tube is provided with a drip hole, the bottom of the lower tube is provided with a water delivery hole, the drip hole and the water delivery hole are completely connected;

[0007] The speed regulating device comprises a motor, the rotating shaft of the motor is rotatably connected to the support plate, the bottom of the rotating shaft of the motor is movably connected to a coupling, the bottom of the coupling is movably connected to a screw, the screw is spirally connected to one end of the slide plate, the other end of the slide plate is slidably connected to the guide rod, the bottom of the slide plate is fixedly connected to a conical speed regulating block, and the conical speed regulating block is directly opposite to the drip hole;

[0008] The stirring mechanism comprises a driving wheel, the driving wheel is key-connected with the rotating shaft of the motor, one side of the driving wheel is meshedly connected with a driven wheel, the driven wheel is key-connected with a rotating shaft, the rotating shaft is rotatably connected with the support plate, and the bottom of the rotating shaft is key-connected with a stirring fan;

[0009] Furthermore, the speed measuring water level drop mechanism includes a fixed cylinder, a movable block is slidably connected to the top of the fixed cylinder, a spring is connected between the movable block and the fixed cylinder, the fixed cylinder is barrel-shaped, a vibration sensor is fixedly connected to the bottom of the fixed cylinder, a floating block is slidably connected to the outside of the fixed cylinder, and a displacement sensor is fixedly connected to the bottom of the lower cylinder, and the displacement sensor is located directly below the floating block.

[0010] Furthermore, the upper cylinder includes an upper cylinder body, the outer side wall of the upper cylinder body is provided with a plurality of outer vertical grooves, the bottom of the outer vertical grooves is provided with outer transverse grooves, the width of the outer transverse grooves is greater than the outer vertical grooves, the outer vertical grooves and the outer transverse grooves are interconnected, the bottom of the upper cylinder body is provided with a penetrating drip hole, the inner side wall of the upper cylinder body is provided with a plurality of inner vertical grooves, the bottom of the inner vertical grooves is provided with inner transverse grooves, the width of the inner transverse grooves is greater than the inner vertical grooves, and the inner transverse grooves and the inner vertical grooves are interconnected.

[0011] Furthermore, the lower cylinder includes a lower cylinder body, which is annular, and the side wall of the lower cylinder body has a plurality of mounting blocks in an annular array, and the bottom of the lower cylinder body is detachably connected to a bottom plate, and the bottom of the bottom plate is provided with a water delivery hole, and the water delivery hole is connected to the lower water delivery pipe.

[0012] Furthermore, the floating block includes a floating ring, which is in a ring shape. One end of an inner connecting rod of a ring array is fixedly connected to the inside of the floating ring, and the other end of the inner connecting rod is fixedly connected to a vertical block.

[0013] Furthermore, the support plate includes a plate body, the interior of the plate body is provided with a motor hole and an infusion hole, the motor hole is rotatably connected to the motor, the infusion hole is connected to an upper water pipe, and a plurality of blocks are arranged in a ring array around the plate body.

[0014] Furthermore, the fixed cylinder includes a cylindrical body, a side wall of the cylindrical body is provided with a plurality of drainage holes, a side wall of the cylindrical body is provided with a T-shaped groove, a bottom of the cylindrical body is provided with a support column, and a through hole is opened at the bottom of the cylindrical body.

[0015] Furthermore, the stirring fan comprises a fan shaft, a plurality of fan blades are arranged around the fan shaft, and a protruding block is arranged on the inner side of the fan blades.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention is provided with a speed regulating device, which is conducive to using the conical speed regulating block to gradually go deeper into or away from the drip hole to cause the water outlet of the drip hole to decrease or increase, so that the flow rate of the water outlet becomes smaller or larger, thereby making the speed of the liquid out of the drip hole smaller or larger, thereby realizing the regulation of the drip hole speed.

[0018] 2. The present invention is provided with a stirring mechanism, which is conducive to utilizing the torque generated by the rotation of the stirring fan to drive the medicine liquid to rotate. The generated rotational force mixes certain suspension-type drugs with the medicine liquid more evenly, reduces the possibility of precipitation, and greatly improves the infusion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is an overall structural diagram of the upper tube after half-sectioning of the present invention.

[0021] Figure 3 It is a schematic diagram of the overall structure of the present invention after the upper tube is half-cut and the support plate is removed.

[0022] Figure 4 It is a cross-sectional view of the overall structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the upper tube of the present invention.

[0024] Figure 6 It is a schematic diagram of the internal structure assembly of the lower tube of the present invention.

[0025] Figure 7It is a schematic diagram of the support plate structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the fixed cylinder structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of the stirring fan structure of the present invention.

[0028] The accompanying drawings are marked as follows: 1. upper cylinder; 101. upper cylinder body; 102. outer vertical groove; 103. outer horizontal groove; 104. drip hole; 105. inner vertical groove; 106. inner horizontal groove; 2. lower cylinder; 201. lower cylinder body; 202. mounting block; 203. water delivery hole; 204. bottom plate; 3. lower water delivery pipe; 4. upper water delivery pipe; 5. rotating clamping plate; 6. support plate; 601. plate body; 602. motor hole; 603. clamping block; 604. infusion hole; 7. speed regulating device; 701. motor; 702. coupling; 703. screw; 704. slide plate; 705. conical speed regulating block ;706, guide rod;8, stirring mechanism;801, driving wheel;802, driven wheel;803, rotating shaft;804, stirring fan;8041, fan shaft;8042, fan blade;8043, protruding block;9, speed measuring water level drop mechanism;901, fixed cylinder;9011, cylinder body;9012, drain hole;9013, T-slot;9014, supporting column;9015, through hole;902, moving block;903, spring;904, vibration sensor;905, floating block;9051, floating ring;9052, inner connecting rod;9053, vertical block;906, displacement sensor. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The precise quantitative infusion device involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 3 The present invention provides a precise quantitative infusion device, comprising an upper tube 1, the bottom of the upper tube 1 is snap-connected with a lower tube 2, the bottom of the lower tube 2 is connected with a lower water pipe 3, the upper part of the lower tube 2 is connected with an upper water pipe 4, the top of the upper tube 1 is rotatably connected with a rotating clamping plate 5, the inner snap-connected with a support plate 6 of the upper tube 1, the bottom of the support plate 6 is connected with a speed regulating device 7, one side of the speed regulating device 7 is meshedly connected with a stirring mechanism 8, the lower tube 2 is provided with a speed measuring water level lowering mechanism 9, the bottom of the upper tube 1 is provided with a drip hole 104, the bottom of the lower tube 2 is provided with a water delivery hole 203, and the drip hole 104 is completely connected with the water delivery hole 203;

[0031] The speed regulating device 7 includes a motor 701, the rotating shaft of the motor 701 is rotatably connected to the support plate 6, the bottom of the rotating shaft of the motor 701 is movably connected to a coupling 702, the bottom of the coupling 702 is movably connected to a screw 703, the screw 703 is spirally connected to one end of a slide plate 704, the other end of the slide plate 704 is slidably connected to a guide rod 706, the bottom of the slide plate 704 is fixedly connected to a conical speed regulating block 705, and the conical speed regulating block 705 is directly opposite to the drip hole 104;

[0032] The stirring mechanism 8 includes a driving wheel 801, which is keyed to the rotating shaft of the motor 701, a driven wheel 802 is meshedly connected to one side of the driving wheel 801, the driven wheel 802 is keyed to a rotating shaft 803, the rotating shaft 803 is rotatably connected to the support plate 6, and a stirring fan 804 is keyed to the bottom of the rotating shaft 803;

[0033] In this embodiment, it should be specifically explained that the liquid medicine inside the lower tube 2 cannot submerge the speed measuring water level drop mechanism 9 , thereby hindering the speed measuring water level drop mechanism 9 from measuring the speed.

[0034] The main difference between this embodiment and the prior art is that in this embodiment, the initiative of the motor 701 and the meshing transmission of the screw 703 and the slide plate 704 and the guidance of the guide rod 706 are used to realize the linear motion of the slide plate 704, and the conical speed regulating block 705 is continuously penetrated or extended into the drip hole 104 to realize the opening becoming smaller or larger, so as to realize the flow rate adjustment, which is specifically in the speed regulating device 7 and the stirring mechanism 8;

[0035] The above structure is the main structure of this embodiment, which solves the problem that some drugs need to be mixed during infusion. The motor 701 is an existing structure, and the specific structure and connection method of the motor 701 are not described in detail in this embodiment.

[0036] Reference Figure 4 The speed measuring water level drop mechanism 9 includes a fixed cylinder 901, a movable block 902 is slidably connected to the top of the fixed cylinder 901, a spring 903 is connected between the movable block 902 and the fixed cylinder 901, the fixed cylinder 901 is barrel-shaped, a vibration sensor 904 is fixedly connected to the bottom of the fixed cylinder 901, a floating block 905 is slidably connected to the outside of the fixed cylinder 901, and a displacement sensor 906 is fixedly connected to the bottom of the lower cylinder 2, and the displacement sensor 906 is located directly below the floating block 905.

[0037] In this embodiment, it is necessary to specifically explain that: the medicine liquid continuously drips onto the movable block 902 through the drip hole 104, and the impact force generated by the medicine liquid causes the movable block 902 to continuously move downward. During the downward movement of the movable block 902, the movable block 902 compresses the spring 903 to deform, and the vibration sensor 904 senses that the movable block 902 has been displaced. After the impact force generated by the medicine liquid disappears, the rebound force of the spring 903 restores the movable block 902 to its original position. When the next drop of medicine liquid drips onto the movable block 902, the vibration sensor 904 senses that the movable block 902 has been displaced again. In this way, by sensing the number of times the displacement occurs, the nurse can know the specific situation of the liquid dripping speed. When the patient is dripping, if an abnormality occurs, the liquid level inside the lower tube 2 will automatically drop without external interference, and the floating block 905 originally floated inside the lower tube 2 will also drop at this time. The displacement sensor 906 senses the drop of the floating block 905 and sends a signal to the alarm, and the alarm sounds an alarm. At this time, the medical staff hears the alarm and comes to check the situation.

[0038] Reference Figure 5 The upper cylinder 1 includes an upper cylinder 101, the outer side wall of the upper cylinder 101 is provided with a plurality of outer vertical grooves 102, the bottom of the outer vertical grooves 102 is provided with outer transverse grooves 103, the width of the outer transverse grooves 103 is greater than the outer vertical grooves 102, the outer vertical grooves 102 and the outer transverse grooves 103 are interconnected, a penetrating drip hole 104 is provided at the bottom of the upper cylinder 101, a plurality of inner vertical grooves 105 are provided on the inner side wall of the upper cylinder 101, the bottom of the inner vertical grooves 105 is provided with inner transverse grooves 106, the width of the inner transverse grooves 106 is greater than the inner vertical grooves 105, and the inner transverse grooves 106 and the inner vertical grooves 105 are interconnected.

[0039] In this embodiment, it is necessary to specifically explain that: after the outer vertical groove 102 is slidably connected to the lower tube 2, the lower tube 2 is rotated to fit with the outer horizontal groove 103, ensuring that the lower tube 2 and the upper tube 1 do not fall off during the dripping process; after the inner vertical groove 105 is slidably connected to the support plate 6, the support plate 6 is rotated to fit with the inner horizontal groove 106, ensuring that the support plate 6 and the upper tube 1 do not fall off during the dripping process.

[0040] Reference Figure 6 The lower cylinder 2 includes a lower cylinder body 201, which is annular. The side wall of the lower cylinder body 201 has a plurality of mounting blocks 202 in an annular array. The bottom of the lower cylinder body 201 is detachably connected to a bottom plate 204. The bottom of the bottom plate 204 is provided with a water delivery hole 203, which is connected to the lower water delivery pipe 3. The floating block 905 includes a floating ring 9051, which is annular. One end of an inner connecting rod 9052 of an annular array is fixedly connected to the inside of the floating ring 9051, and the other end of the inner connecting rod 9052 is fixedly connected to a vertical block 9053.

[0041] In this embodiment, it is necessary to specifically explain that: after the mounting block 202 is slidably mounted with the outer vertical groove 102, the lower cylinder 2 begins to rotate toward the outer horizontal groove 103, and finally the mounting block 202 fits against the side wall of the outer horizontal groove 103, and then the bottom plate 204 is connected to the lower cylinder body 201. When the liquid level inside the lower cylinder 2 drops due to abnormal reasons, the float 9051 also drops along the trajectory of the sliding connection between the vertical block 9053 and the fixed cylinder 901.

[0042] Reference Figure 7 The support plate 6 includes a plate body 601, and a motor hole 602 and a liquid infusion hole 604 are provided inside the plate body 601. The motor hole 602 is rotatably connected to the motor 701, and the liquid infusion hole 604 is connected to the upper water delivery pipe 4. There are a number of blocks 603 in a ring array around the plate body 601.

[0043] In this embodiment, it should be specifically explained that: after the block 603 is slidably installed with the inner vertical groove 105 , the support plate 6 starts to rotate toward the inner vertical groove 105 , and finally the block 603 fits with the side wall of the inner horizontal groove 106 .

[0044] Reference Figure 8 The fixed cylinder 901 includes a cylindrical body 9011, a plurality of drainage holes 9012 are provided on the side wall of the cylindrical body 9011, a T-shaped groove 9013 is provided on the side wall of the cylindrical body 9011, a support column 9014 is provided on the bottom of the cylindrical body 9011, and a through hole 9015 is opened on the bottom of the cylindrical body 9011.

[0045] In this embodiment, it should be specifically explained that: when the medicine liquid continuously drips onto the movable block 902 through the drip hole 104, the medicine liquid will not stay on the movable block 902, but will fall along the movable block 902 and leak out from the drain hole 9012, so that the medicine liquid will not be wasted. The T-slot 9013 is slidably connected with the vertical block 9053, and the medicine liquid will not accumulate inside the fixed cylinder 901, but will flow out from the through hole 9015.

[0046] Reference Fig. 9 The stirring fan 804 includes a fan shaft 8041 , a plurality of fan blades 8042 are arranged around the fan shaft 8041 , and a protruding block 8043 is arranged on the inner side of the fan blade 8042 .

[0047] In this embodiment, it should be specifically explained that when the stirring fan 804 rotates, the protruding block 8043 collides with the liquid medicine to generate eddy currents, thereby accelerating the mixing of the liquid medicine.

[0048] Working principle of the present invention:

[0049] The main problem solved by this embodiment is: utilizing the initiative of the motor 701 and the meshing transmission between the screw 703 and the slide plate 704 and the guidance of the guide rod 706 to realize the linear motion of the slide plate 704, and by continuously penetrating or extending the conical speed regulating block 705 into or out of the drip hole 104 to realize the smaller or larger opening, realize the flow adjustment, and utilize the transmission between the driving wheel 801 and the driven wheel 802 to realize the rotation of the stirring fan 804, thereby solving the problem of mixing required during the infusion process of certain drugs.

[0050] The specific steps are as follows:

[0051] First, the preparation before infusion is to assemble the device. First, fix the guide rod 706 and the screw rod 703 to the bottom of the upper tube 1, respectively sleeve the slide plate 704 and the conical speed regulating block 705 on the guide rod 706 and the screw rod 703, sleeve the coupling 702 on the top of the screw rod 703, sleeve the stirring fan 804 and the driven wheel 802 on the rotating shaft 803, rotate and connect the top of the rotating shaft 803 below the support plate 6, pass the rotating shaft of the motor 701 through the motor hole 602, sleeve the driving wheel 801 on the transmission shaft of the motor 701, then, unfold the rotating card plate 5, move the card block 603 of the support plate 6 along the inner vertical groove 105 to the bottom of the inner horizontal groove 106, and then rotate the card block 603 to fit tightly During the rotation of the side wall of the inner horizontal groove 106, the motor 701 is lifted upward. After the rotation is completed, the rotating shaft of the motor 701 is inserted into the coupling 702, and then the lower tube 2 and the speed measuring water level drop mechanism 9 fixed inside the lower tube 2 are slid on the outer vertical groove 102 through the mounting block 202 until the mounting block 202 slides to the bottom of the outer vertical groove 102, and then the lower tube 2 is rotated to be close to the side wall of the outer horizontal groove 103, the bottom plate 204 is connected to the lower cylinder body 201, and then the lower water pipe 3 is connected to the infusion pipe, and the upper water pipe 4 is connected to the inside of the upper tube 1 through the infusion hole 604, and the liquid medicine is poured into the bottom of the support plate 6, and then the rotating card plate 5 is buckled, and the nurse adjusts the liquid medicine at the bottom of the support plate 6 to a suitable height;

[0052] When the liquid medicine gradually stabilizes, the liquid medicine continuously drips onto the movable block 902 through the drip hole 104. The impact force generated by the liquid medicine causes the movable block 902 to continuously move downward. During the downward movement of the movable block 902, the movable block 902 compresses the spring 903 to deform, and the vibration sensor 904 senses that the movable block 902 has moved. After the impact force generated by the liquid medicine disappears, the rebound force of the spring 903 restores the movable block 902 to its original position. When the next drop of liquid medicine drips onto the movable block 902, the vibration sensor 904 senses that the movable block 902 has moved again. In this way, by sensing the number of times the displacement occurs, the nurse can know the specific situation of the liquid dripping speed.

[0053] When the liquid dripping speed is too fast, the motor 701 rotates forward, and drives the slide plate 704 to rotate through the coupling 702, and drives the slide plate 704 connected with the screw rod 703 to move linearly downward under the guidance of the guide rod 706, and the conical speed regulating block 705 gradually sinks into the drip hole 104 to change the opening size of the drip hole 104, the flow rate of the liquid is reduced, and the dripping speed is reduced. At the same time, the rotation shaft of the motor 701 rotates to drive the driving wheel 801 to rotate, and the driving wheel 801 drives the meshing driven wheel 802 to rotate, and the driven wheel 802 drives the rotating shaft 803 connected with the key to rotate, and drives the stirring fan 804 connected with the rotating shaft 803 to rotate, so as to stir the liquid medicine to prevent some insoluble solid drug particles from precipitating or stratifying. When the liquid dripping speed is too slow, the motor 701 reverses, and the conical speed regulating block 705 gradually moves away from the slide plate 704, the flow rate of the liquid increases, and the dripping speed increases.

[0054] When the patient is dripping liquid, if an abnormality occurs, the liquid level inside the lower tube 2 will drop automatically without external interference, and the floating block 905, which originally floats inside the lower tube 2, will also drop. The displacement sensor 906 senses the drop of the floating block 905 and sends a signal to the alarm. The alarm sounds an alarm, and at this time, the medical staff hears the alarm and comes to check the situation.

[0055] When the infusion is completed, remove the device, unfold the rotating card plate 5, lift the motor 701, rotate the card block 603 to the vertical direction of the inner vertical groove 105, pull up the support plate 6, take out the support plate 6 and the parts thereon, remove the bottom plate 204, rotate the mounting block 202 of the lower tube 2 toward the outer vertical groove 102, pull up the lower tube 2, separate the lower tube 2 from the upper tube 1, clean each part, and use it next time.

[0056] 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 precise quantitative infusion device, comprising an upper cylinder (1), characterized in that: The bottom of the upper tube (1) is snap-connected to the lower tube (2), the bottom of the lower tube (2) is connected to the lower water pipe (3), the upper part of the lower tube (2) is connected to the upper water pipe (4), the top of the upper tube (1) is rotatably connected to a rotating clamping plate (5), the inner snap-connected of the upper tube (1) is connected to a support plate (6), the bottom of the support plate (6) is connected to a speed regulating device (7), the speed regulating device (7) controls the dripping speed of the liquid, one side of the speed regulating device (7) is meshingly connected to a stirring mechanism (8), the stirring mechanism (8) stirs the liquid inside the upper tube (1) uniformly, the lower tube (2) is provided with a speed measuring water level lowering mechanism (9), the bottom of the upper tube (1) is provided with a dripping hole (104), the bottom of the lower tube (2) is provided with a water delivery hole (203), the dripping hole (104) and the water delivery hole (203) are completely connected; The speed regulating device (7) comprises a motor (701), the rotating shaft of the motor (701) is rotatably connected to the support plate (6), the bottom of the rotating shaft of the motor (701) is movably connected to a coupling (702), the bottom of the coupling (702) is movably connected to a screw rod (703), the screw rod (703) is spirally connected to one end of a slide plate (704), the other end of the slide plate (704) is slidably connected to a guide rod (706), the bottom of the slide plate (704) is fixedly connected to a conical speed regulating block (705), and the conical speed regulating block (705) is directly opposite to the drip hole (104); The stirring mechanism (8) comprises a driving wheel (801), the driving wheel (801) is keyed to the rotating shaft of the motor (701), one side of the driving wheel (801) is meshedly connected to a driven wheel (802), the driven wheel (802) is keyed to a rotating shaft (803), the rotating shaft (803) is rotatably connected to the support plate (6), and the bottom of the rotating shaft (803) is keyed to a stirring fan (804).

2. The precise quantitative infusion device according to claim 1, characterized in that: The speed measuring water level drop mechanism (9) comprises a fixed cylinder (901), the top of the fixed cylinder (901) is slidably connected to a moving block (902), a spring (903) is connected between the moving block (902) and the fixed cylinder (901), the fixed cylinder (901) is barrel-shaped, the bottom of the fixed cylinder (901) is fixedly connected to a vibration sensor (904), the outer side of the fixed cylinder (901) is slidably connected to a floating block (905), the bottom of the lower cylinder (2) is fixedly connected to a displacement sensor (906), and the displacement sensor (906) is located directly below the floating block (905).

3. The precise quantitative infusion device according to claim 1, characterized in that: The upper cylinder (1) comprises an upper cylinder (101), the outer side wall of the upper cylinder (101) is provided with a plurality of outer vertical grooves (102), the bottom of the outer vertical grooves (102) is provided with outer transverse grooves (103), the width of the outer transverse grooves (103) is greater than the outer vertical grooves (102), the outer vertical grooves (102) and the outer transverse grooves (103) are interconnected, the bottom of the upper cylinder (101) is provided with a through-going water dripping hole (104), the inner side wall of the upper cylinder (101) is provided with a plurality of inner vertical grooves (105), the bottom of the inner vertical grooves (105) is provided with inner transverse grooves (106), the width of the inner transverse grooves (106) is greater than the inner vertical grooves (105), and the inner transverse grooves (106) and the inner vertical grooves (105) are interconnected.

4. The precise quantitative infusion device according to claim 1, characterized in that: The lower cylinder (2) comprises a lower cylinder (201), the lower cylinder (201) is annular, the side wall of the lower cylinder (201) has a plurality of mounting blocks (202) in an annular array, the bottom of the lower cylinder (201) is detachably connected to a bottom plate (204), the bottom of the bottom plate (204) is provided with a water delivery hole (203), and the water delivery hole (203) is connected to a lower water delivery pipe (3).

5. The precise quantitative infusion device according to claim 2, characterized in that: The floating block (905) comprises a floating ring (9051) which is ring-shaped, one end of an inner connecting rod (9052) of a ring-shaped array is fixedly connected inside the floating ring (9051), and the other end of the inner connecting rod (9052) is fixedly connected to a vertical block (9053).

6. The precise quantitative infusion device according to claim 1, characterized in that: The support plate (6) comprises a plate body (601), the plate body (601) is provided with a motor hole (602) and a liquid infusion hole (604) inside, the motor hole (602) is rotatably connected to a motor (701), the liquid infusion hole (604) is connected to an upper water delivery pipe (4), and a plurality of blocks (603) are provided in a ring-shaped array around the plate body (601).

7. The precise quantitative infusion device according to claim 2, characterized in that: The fixed cylinder (901) comprises a cylindrical body (9011), a side wall of the cylindrical body (9011) is provided with a plurality of drainage holes (9012), a side wall of the cylindrical body (9011) is provided with a T-shaped groove (9013), a bottom of the cylindrical body (9011) is provided with a support column (9014), and a through hole (9015) is opened at the bottom of the cylindrical body (9011).

8. The precise quantitative infusion device according to claim 1, characterized in that: The stirring fan (804) comprises a fan shaft (8041), a plurality of fan blades (8042) are arranged around the fan shaft (8041), and a protruding block (8043) is arranged on the inner side of the fan blade (8042).

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