CN105641779B - Infusion flow speed regulator - Google Patents

Abstract

The invention discloses an infusion flow rate regulator. The infusion flow rate regulator conducts liquid guidance through a fixed base or a fixed base and a regulating rod, and the regulating rod moves along the regulating rod channel to adjust the liquid used for infusion at the speed regulating position. The cross-sectional area of the flow channel can change the infusion flow rate in the infusion device. The device can fix the adjustment rod through the adjustment rod channel in the fixed base, so that the flow rate can be better positioned after the flow rate setting is completed. The flow rate will not drift and the operation process Simple, more accurate flow rate control, in line with current clinical usage habits and various application environments, ensuring the safety of infusion, can be used in routine infusion, in blood products, intravenous nutrition, mannitol and other high-viscosity or high-precipitation liquid infusion During injection, it can reduce the chance of blockage. This invention is used in the field of medical devices.

Description

An infusion flow rate regulator

technical field

The invention relates to the field of medical devices, in particular to an infusion flow rate regulator.

Background technique

Infusion therapy is an important clinical treatment method. Infusion therapy will be applied to infusion sets or infusion pumps of various types of infusion regulators to suit different occasions.

The basic principle of the existing ordinary infusion regulator is roughly the same. Basically, there is a pulley outside the infusion catheter. Change the cross-sectional area of the fluid flow channel of the infusion catheter to adjust the infusion flow rate.

The ordinary infusion regulator can be operated with one hand and can realize the stepless adjustment of the infusion flow rate. However, since the infusion catheter is a flexible tube with a smooth surface, during the infusion process, the pulley will be moved from the set position, or even pushed away to Complete slippage will cause the infusion flow rate to be out of control. The infusion flow rate exceeding the predetermined rate will clinically lead to serious medical accidents such as heart failure and death of patients, forming a major safety hazard. Clinically, the method of increasing the number of inspections and proofreading of nursing staff can detect the drift of infusion flow rate and correct it in time to avoid the harm when the above situation occurs, but this method obviously increases the workload of nursing staff.

At the same time, due to the elasticity of the infusion catheter and the deformation of the infusion catheter after being squeezed for a long time, it cannot be restored to its original state. In clinical practice, the cross-sectional area of the liquid flow channel of the infusion catheter is unpredictable. The position of the infusion catheter can be used to judge the cross-sectional area of the infusion catheter after being squeezed, and then the infusion flow rate cannot be judged. Each adjustment requires the operator to cooperate with the timer to manually check the expected value for many times, which is time-consuming and labor-intensive without large errors. , increase the workload of nursing staff, especially when the workload of clinical infusion is large, increase the waiting time of patients and delay treatment. The flow adjustment depends more on the operator's experience than the flow regulator itself, and cannot be used when precise control of the infusion flow rate is required.

The existing common flow setting type infusion set in clinical use adopts a liquid flow channel with a preset cross-sectional area that continuously changes and a fixed shape. The cross-sectional area of the corresponding liquid flow channel is different, so as to achieve the purpose of adjusting the flow rate of the infusion.

The flow setting type infusion regulator can realize the stepless adjustment of the infusion flow rate and can solve the infusion flow rate drift, but the process is complex, requires two-hand operation, and the production cost is high, and the flow rate scale is designed with a circular surface, and the flow rate can only be observed by manual rotation. The scale is not convenient for nurses to inspect the infusion situation. When infusion of blood products, intravenous nutrition, mannitol and other high-viscosity or high-precipitation liquids, the preset liquid flow channel has a small cross-sectional area and a long stroke, which is easy to block, so it is difficult to popularize clinically.

In clinical practice, the volume of a single drop of different liquid medicines will be different, generally between 0.043 and 0.05ml, and special medicines exceed this range. The existing flow setting regulator cannot meet the change of the volume of a single drop of liquid medicine, so during clinical infusion, it will be more accurate to operate according to "drop". adjust.

When it is necessary to precisely control the infusion flow rate, the infusion pump is generally used, but the infusion pump needs to be used when there is a power supply, which is inconvenient to carry, expensive, unfavorable for promotion, and the operation is too complicated and not intuitive and simple.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an infusion flow rate regulator which is easy to operate and can more accurately control the infusion flow rate.

The technical scheme adopted by the present invention is:

An infusion flow rate regulator, comprising a fixed base provided with a fixed base liquid inlet and a fixed base liquid outlet, and an adjustment rod installed on the fixed base; the adjustment rod is provided with a liquid inlet connected to the fixed base The liquid flow channel between the fixed base and the liquid outlet of the fixed base; the fixed base is provided with a regulating rod channel; the regulating rod channel is provided with a movable regulating rod, and the regulating rod and the regulating rod channel are watertightly sealed ; Adjust the cross-sectional area of the liquid flow channel for the liquid to pass through by adjusting the area of the overlapping portion of the bottom shape on the fixed base and the cross-sectional shape of the liquid flow channel on the adjustment rod.

An infusion flow rate regulator, comprising a fixed base provided with a fixed base liquid inlet and a fixed base liquid outlet, and an adjustment rod installed on the fixed base; the adjustment rod is provided with a liquid outlet connected to the fixed base The liquid flow channel between the regulating rod and the liquid inlet of the regulating rod; the regulating rod channel is provided on the fixed base; the regulating rod channel is provided with a movable regulating rod, and the regulating rod and the regulating rod channel are watertightly sealed ; The regulating rod is provided with a regulating rod liquid inlet and a regulating rod liquid outlet which communicate with the liquid outlet of the fixed base; by adjusting the overlapping part of the shape of the bottom on the fixed base and the cross-sectional shape of the liquid flow channel on the regulating rod The area adjusts the cross-sectional area of the liquid flow channel for the liquid to pass through.

As a further improvement of the technical solution of the present invention, the fixed base is provided with an adjusting rod channel that communicates with the liquid pipeline of the fixed base.

As a further improvement of the technical solution of the present invention, the adjusting rod channel is arranged perpendicular to the liquid flow channel.

As a further improvement of the technical solution of the present invention, at least one liquid flow channel is provided.

As a further improvement of the technical solution of the present invention, the liquid flow channels are grooves distributed at intervals, or grooves with continuously changing cross-sectional areas.

As a further improvement of the technical solution of the present invention, the minimum cross-sectional area of the liquid pipeline on the fixed base is greater than or equal to the maximum cross-sectional area of the liquid flow channel.

As a further improvement of the technical solution of the present invention, the regulating rod is intercepted by changing the length and/or angle of the bottom embedded regulating rod channel, and the cross-sectional shape of the liquid flow channel on the regulating rod fits the shape of the bottom on the fixed base, The liquid flow channel can be completely shut off. When the cross-sectional shape of the liquid flow channel on the adjusting rod and the bottom shape on the fixed base are zero, the liquid flow channel can pass through the liquid to present the maximum liquid flow.

As a further improvement of the technical solution of the present invention, the adjustment rod is provided with at least one liquid flow channel with a structure of a through hole, and the adjustment rod changes the area of the intersection between the cross section of the through hole on the adjustment rod and the shape of the bottom on the fixed base through vertical movement. to adjust the flow rate.

As a further improvement of the technical solution of the present invention, the regulating rod is provided with a liquid flow channel with a continuously changing cross-sectional area, and the regulating rod changes the liquid flow channel on the regulating rod by performing vertical movement or horizontal rotation or spiral motion along the regulating rod channel. The size of the intersection between the cross-sectional shape and the bottom shape on the fixed base can adjust the flow rate.

As a further improvement of the technical solution of the present invention, the regulating rod is provided with an inner hollow cavity, the regulating rod is provided with a liquid outlet channel communicating with the hollow cavity, and the liquid outlet channel and the regulating rod are made integrally.

As a further improvement of the technical solution of the present invention, the outer wall of the adjusting rod is provided with a liquid flow channel connecting the liquid outlet of the fixed base and the liquid inlet of the adjusting rod, the adjusting rod is provided with a hollow cavity inside, and the adjusting rod is provided with a The liquid outlet channel communicated with the hollow cavity is made in one piece with the adjustment rod.

As a further improvement of the technical solution of the present invention, the liquid outlet channel is perpendicular to the adjustment rod.

As a further improvement of the technical solution of the present invention, the liquid outlet of the fixed base and the channel of the adjusting rod are set as the same channel.

As a further improvement of the technical solution of the present invention, at least one closed ring is provided on the adjustment rod, and the closed ring protrudes between the surface of the adjustment rod and the passage of the adjustment rod to achieve sealing.

As a further improvement of the technical solution of the present invention, the cross section of the closed ring is semicircular or trapezoidal.

As a further improvement of the technical solution of the present invention, the upper surface of the fixed base is provided with a blocking outer ring that surrounds the periphery of the adjusting rod channel, and the auxiliary pressing plate is provided with a blocking outer ring that surrounds the periphery of the adjusting rod and can be embedded in the blocking outer ring to closely adhere to the inner wall of the blocking outer ring. The barrier inner ring is provided with a barrier gasket between the barrier outer ring and the barrier inner ring.

As a further improvement of the technical solution of the present invention, the top end of the adjustment rod is provided with an auxiliary pressure plate, the adjustment rod channel protrudes from the upper surface of the fixed base, and a return spring is arranged between the auxiliary pressure plate and the fixed base.

As a further improvement of the technical solution of the present invention, an adjustment fixing seat and a moving pressure plate are arranged above the auxiliary pressure plate, one end of the moving pressure plate is placed above the auxiliary pressure plate, and the other end of the moving pressure plate is hinged and fixed on the adjustment fixing seat, and the adjustment fixing seat is There is a chute, a pulley that can move horizontally along the chute is arranged in the chute, the bottom of the pulley is pressed against the moving pressure plate, and the driving pressure plate gradually presses down the auxiliary pressure plate during the sliding process of the pulley.

As a further improvement of the technical solution of the present invention, the pulley is fixed with a limit wheel arranged coaxially with the pulley, and there are several cut-off positions above or below the chute. During the sliding process of the pulley, the limit wheel is embedded in the cut-off position to fix it. pulley.

As a further improvement of the technical solution of the present invention, pulley stops are provided at both ends of the chute.

As a further improvement of the technical solution of the present invention, the adjusting fixed seat is provided with a flow velocity scale line arranged along the axial direction of the chute.

As a further improvement of the technical solution of the present invention, the top of the adjustment rod is provided with an adjustment wheel, and the fixed base is provided with a limit stopper protruding from the surface of the fixed base and placed on the top of the adjustment wheel. Adjust the length and/or angle at which the adjustment rod extends into the adjustment rod channel.

As a further improvement of the technical solution of the present invention, the adjusting rod extends outward with an adjusting wheel, the adjusting wheel extends upward and is provided with an adjusting wheel fixing shaft, the bottom of the adjusting rod is close to the bottom of the adjusting rod channel, and the The fixing base is provided with a holder for accommodating the fixing shaft hole of the adjusting wheel, the adjusting wheel can be axially rotated along the adjusting rod channel, and the angle of the adjusting rod in the adjusting rod channel is adjusted by rotating the adjusting wheel.

As a further improvement of the technical solution of the present invention, the top of the adjustment rod is provided with an adjustment wheel, the adjustment rod and the adjustment rod channel are connected by threads, and the fixed base is provided with an adjustment wheel that protrudes from the surface of the fixed base and is placed on the adjustment wheel. The limit stopper at the top can adjust the length and angle of the adjusting rod extending into the adjusting rod channel by rotating the adjusting wheel.

As a further improvement of the technical solution of the present invention, a circle of positioning chassis is arranged on the fixed base, a circle of positioning grooves is arranged along the upper surface of the positioning chassis, at least one positioning protrusion is arranged below the adjustment wheel, and the adjustment wheel is embedded through the positioning protrusion. Position in the positioning groove.

As a further improvement of the technical solution of the present invention, the positioning chassis is provided with a circle of positioning grooves whose heights change sequentially, and the positioning protrusions are embedded in each positioning groove for positioning while adjusting the length of the adjustment rod extending into the liquid flow channel.

As a further improvement of the technical solution of the present invention, the adjusting rod and the adjusting rod channel are connected by threads.

As a further improvement of the technical solution of the present invention, the adjustment wheel is provided with a flow rate scale line arranged around the adjustment wheel.

As a further improvement of the technical solution of the present invention, the two sides of the fixed base are provided with regulating valve grooves, and the top of the regulating rod is connected with a pawl which is covered outside the fixed base and moves against the groove wall.

As a further improvement of the technical solution of the present invention, the top end of the adjusting rod is provided with an adjusting ring.

As a further improvement of the technical solution of the present invention, a number of adjustment teeth are arranged on the two opposite adjustment valve grooves from top to bottom, and the top of the adjustment rod extends downward with adjustment teeth wrapped on the outside of the fixed base and clamped on both sides. Two pawls set opposite each other.

As a further improvement of the technical solution of the present invention, the width of the grooves of the two regulating valves is greater than the width between the two pawls.

As a further improvement of the technical solution of the present invention, a locking position is provided between the fixed base and the adjusting rod.

As a further improvement of the technical solution of the present invention, the fixed base and the adjusting rod are made in one piece, or the fixed base and the adjusting rod are arranged independently of each other.

As a further improvement of the technical solution of the present invention, the fixed base and the adjusting rod are connected into one body by the connecting belt of the bendable part.

Beneficial effects of the present invention: the infusion flow rate regulator conducts liquid conduction through a fixed base or a fixed base and a regulating rod, and adjusts the cross-sectional area of the liquid flow channel for infusion at the speed regulating position by moving the regulating rod along the regulating rod channel , so as to change the infusion flow rate in the infusion device. This device realizes the fixation of the adjustment rod through the adjustment rod channel in the fixed base, so that the flow rate can be better positioned after the flow rate setting is completed, the flow rate will not drift, the operation process is simple, and the flow rate control is more Accurate, in line with current clinical usage habits and various application environments, ensuring the safety of infusion, it can be used in routine infusion, and can be used in the infusion of blood products, intravenous nutrition, mannitol and other high-viscosity or high-precipitation liquids. Blocking opportunities.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings:

1 is a front view of the internal structure when the liquid flow channel is in a full flow state in the first embodiment of the present invention;

2 is a front view of the internal structure when the liquid flow channel is in a fully closed state in the first embodiment of the present invention;

Fig. 3 is the front view of the fixed base structure in the first embodiment of the present invention;

4 is a schematic diagram of the external structure of the first embodiment of the present invention marked with a scale;

5 is a schematic diagram of the overall structure of the chute using parallel guide rails in the first embodiment of the present invention;

6 is a schematic diagram of the overall structure of the second embodiment of the present invention after the cut-off position is set in the chute;

7 is a schematic diagram of the structure state of the liquid flow channel in the full circulation state when the inside of the adjusting rod is set as a hollow cavity in the third embodiment of the present invention;

8 is a schematic diagram of the structure state of the fully closed state of the liquid flow channel when the inside of the adjusting rod is set as a hollow cavity in the third embodiment of the present invention;

9 is a schematic diagram of the structure of the fixed base when the liquid outlet of the fixed base and the channel of the adjusting rod are set as the same channel in the third embodiment of the present invention;

10 is a schematic diagram of the overall structure of the adjusting rod in the third embodiment of the present invention;

11 is a schematic diagram of the overall structure of the liquid flow channel in the fourth embodiment of the present invention when it is in a full flow state;

12 is a schematic diagram of the overall structure when the liquid flow channel is in a fully closed state in the fourth embodiment of the present invention;

13 is a top view of the structure of the adjusting rod in the fourth embodiment of the present invention;

Figure 14 is a front view of the structure of the adjusting rod in the fourth embodiment of the present invention;

15 is a front view of the structure of the fixed base in the fourth embodiment of the present invention;

16 is a top view of the structure of the fixed base according to the fourth embodiment of the present invention;

17 is a top view of the overall structure of the fourth embodiment of the present invention where the scale lines are provided;

18 is a schematic diagram of the overall structure of the liquid flow channel in the open state in the fifth embodiment of the present invention;

19 is a schematic diagram of the overall structure when the liquid flow channel is in a fully closed state in the fifth embodiment of the present invention;

20 is a front view of the structure of the fixed base in the fifth embodiment of the present invention;

Figure 21 is a front view of the structure of the adjusting rod in the fifth embodiment of the present invention;

Figure 22 is a front view of the overall structure of the liquid flow channel in the full flow state in the sixth embodiment of the present invention;

23 is a side view of the overall structure of the liquid flow channel in the circulation state in the sixth embodiment of the present invention;

24 is a side view of the overall structure of the seventh embodiment of the present invention;

Figure 25 is a side view of the overall structure of the eighth embodiment of the present invention;

26 is a front view of the fixed base structure in the sixth, seventh and eighth embodiments of the present invention;

27 is a front view of the overall structure when the liquid flow channel is in a fully closed state in the sixth, seventh and eighth embodiments of the present invention;

28 is a schematic diagram of the overall structure of the adjusting rod and the pawl in the eighth embodiment of the present invention;

Figure 29 is a schematic diagram before the integrated assembly of the embodiment of the present invention;

30 is a schematic diagram of an integrated assembly process according to an embodiment of the present invention.

Detailed ways

1 to 30, the present invention is an infusion flow rate regulator, comprising a fixed base 1 provided with a fixed base liquid inlet and a fixed base liquid outlet, and an adjusting rod 2 installed on the fixed base 1; The adjustment rod 2 is provided with a liquid flow channel 11 connected between the liquid inlet of the fixed base and the liquid outlet of the fixed base; the fixed base 1 is provided with an adjustment rod channel 12; the adjustment rod channel 12 is provided with The movable adjusting rod 2, the water-tight seal between the adjusting rod 2 and the adjusting rod channel 12; adjust the liquid by adjusting the area of the overlapping portion of the bottom shape on the fixed base 1 and the cross-sectional shape of the liquid flow channel 11 on the adjusting rod 2 The cross-sectional area of the flow channel 11 for the passage of liquid.

An infusion flow rate regulator, comprising a fixed base 1 provided with a fixed base liquid inlet and a fixed base liquid outlet, and an adjustment rod 2 installed on the fixed base 1; The liquid flow channel 11 between the base liquid outlet and the adjustment rod liquid inlet; the fixed base 1 is provided with an adjustment rod channel 12; the adjustment rod channel 12 is provided with a movable adjustment rod 2, and the adjustment rod The rod 2 and the regulating rod channel 11 are watertightly sealed; the regulating rod 2 is provided with the regulating rod liquid inlet and the regulating rod liquid outlet which communicate with the liquid outlet of the fixed base; by adjusting the shape of the bottom of the fixed base 1 The area of the overlapping portion with the cross-sectional shape of the liquid flow channel 11 on the adjustment rod 2 adjusts the cross-sectional area of the liquid flow channel 11 through which the liquid passes.

The infusion flow rate regulator conducts liquid through the fixed base 1 or the fixed base 1 and the adjustment rod 2, and the adjustment rod 2 moves along the adjustment rod channel 11 to adjust the cross-section of the liquid flow channel 11 for infusion at the speed control position area, thereby changing the infusion flow rate in the infusion device. This device realizes the fixation of the adjustment rod 2 through the adjustment rod channel in the fixed base, so that the flow rate setting can be better positioned after the completion of the flow rate setting. The flow rate will not drift and the operation process is simple. The flow rate control It is more accurate, conforms to the current clinical usage habits and various application environments, and ensures the safety of infusion. It can be used in routine infusion, and is used in the infusion of blood products, intravenous nutrition, mannitol and other high-viscosity or high-precipitation liquids. Can reduce the chance of clogging.

As a preferred embodiment of the present invention, the fixed base is provided with an adjusting rod channel that communicates with the liquid pipeline of the fixed base. A movable adjusting rod 2 is arranged in the adjusting rod channel 12 .

As a preferred embodiment of the present invention, the adjusting rod channel 12 is arranged perpendicular to the liquid flow channel 11 .

As a preferred embodiment of the present invention, at least one liquid flow channel 11 is provided.

As a preferred embodiment of the present invention, the liquid flow channels 11 are grooves distributed at intervals, or grooves with continuously changing cross-sectional areas. The cross-section of the grooves may be triangular, semicircular, rectangular, tubular or other shapes.

As a preferred embodiment of the present invention, the minimum cross-sectional area of the liquid pipeline on the fixed base 1 is greater than or equal to the maximum cross-sectional area of the liquid flow channel 11 .

As a preferred embodiment of the present invention, the regulating rod 2 is cut off by changing the length and/or angle of the bottom embedded in the regulating rod channel 12 , and the cross-sectional shape of the liquid flow channel 11 on the regulating rod 2 is the same as the bottom shape of the fixed base 1 Fitting, the liquid flow channel 11 can be completely blocked; when the cross-sectional shape of the liquid flow channel 11 on the adjustment rod 2 and the bottom shape of the fixed base 1 are zero, the liquid flow channel 11 can pass through the liquid to present the maximum liquid flow.

As a preferred embodiment of the present invention, the adjusting rod 2 is provided with at least one liquid flow channel 11 structured as a through hole, and the adjusting rod 2 changes the distance between the cross section of the through hole on the adjusting rod 2 and the shape of the bottom of the fixed base 1 through vertical movement. The size of the intersection area is used to adjust the flow rate.

As a preferred embodiment of the present invention, the regulating rod 2 is provided with a liquid flow channel 11 with a continuously changing cross-sectional area, and the regulating rod 2 changes the regulating rod 2 through vertical movement, horizontal rotation or helical motion along the regulating rod channel 12 The size of the intersecting portion between the cross-sectional shape of the upper liquid flow channel 11 and the shape of the upper bottom portion of the fixed base 1 adjusts the flow rate.

As a preferred embodiment of the present invention, the adjusting rod 2 is provided with a hollow cavity 22 with a hollow interior, and the adjusting rod 2 is provided with a liquid outlet channel 23 communicating with the hollow cavity 22 .

As a preferred embodiment of the present invention, the outer wall of the adjustment rod 2 is provided with a liquid flow channel connecting the liquid outlet of the fixed base 1 and the liquid inlet of the adjustment rod 2, and the adjustment rod 2 is provided with a hollow interior Cavity 22 , the regulating rod 2 is provided with a liquid outlet channel 23 communicating with the hollow cavity 22 , and the liquid outlet channel 23 and the regulating rod 2 are integrally made.

As a preferred embodiment of the present invention, the liquid outlet channel 23 is perpendicular to the regulating rod 2 .

As a preferred embodiment of the present invention, the liquid outlet of the fixed base and the adjusting rod channel 12 are set as the same channel.

As a preferred embodiment of the present invention, the adjusting rod 2 is provided with at least one closed ring 24, and the closed ring 24 protrudes from the surface of the adjusting rod 2 and the adjusting rod channel 12 to achieve sealing.

As a preferred embodiment of the present invention, the cross section of the closed ring 24 is a semicircle or a trapezoid.

As a preferred embodiment of the present invention, the upper surface of the fixed base 1 is provided with a blocking outer ring 121 surrounding the periphery of the adjusting rod channel 12 , and the auxiliary pressing plate is provided with a blocking outer ring 121 that surrounds the periphery of the adjusting rod 2 and can be embedded in the blocking outer ring 121 for close contact. The blocking inner ring 122 on the inner wall of the blocking outer ring 121 is provided with a blocking gasket 123 between the blocking outer ring 121 and the blocking inner ring 122 .

As a preferred embodiment of the present invention, the top end of the adjustment rod 2 is provided with an auxiliary pressure plate 3 , the adjustment rod channel 12 protrudes from the upper surface of the fixed base 1 , and a return spring 31 is provided between the auxiliary pressure plate 3 and the fixed base 1 .

As a preferred embodiment of the present invention, an adjusting fixing seat 4 and a moving pressing plate 41 are arranged above the auxiliary pressing plate 3 , one end of the moving pressing plate 41 is placed above the auxiliary pressing plate 3 , and the other end of the moving pressing plate 41 is hingedly fixed on the adjusting fixing seat 4 Above, there is a chute 42 on the adjustment fixing base 4, and a pulley 43 that can move horizontally along the chute 42 is arranged in the chute 42. The bottom of the pulley 43 is pressed on the moving platen 41, and the pulley 43 drives the platen down gradually during the sliding process. Press the auxiliary pressure plate 3.

As a preferred embodiment of the present invention, the pulley 43 is fixed with a limit wheel arranged coaxially with the pulley 43 , a plurality of cut-off positions 44 are arranged above or below the chute 42 , and the limit wheel is embedded in the cut-off position during the sliding of the pulley 43 . The clamping position 44 can fix the pulley 43 .

As a preferred embodiment of the present invention, both ends of the chute 42 are provided with pulley stops 45 .

As a preferred embodiment of the present invention, the adjustment fixing base 4 is provided with a flow velocity scale line arranged along the axial direction of the chute 42 .

As the first embodiment of the present invention, the minimum cross-sectional area of the liquid pipeline on the fixed base 1 is greater than or equal to the maximum cross-sectional area of the liquid flow channel, and the liquid inlet of the fixed base and the liquid outlet of the fixed base are filled with liquid through the adjustment rod 2 The flow channel 11 communicates with each other, and the regulating rod 2 is provided with a liquid flow channel 11 which is connected between the liquid outlet of the fixed base and the liquid inlet of the regulating rod.

At least one liquid flow channel 11 is provided, and the liquid flow channel 11 is preferably a groove distributed at intervals, or a groove with a continuously changing cross-sectional area. The cross-section of the grooves may be triangular, semicircular, rectangular, tubular or other shapes.

The fixed base 1 accommodates a fixed base liquid inlet and a fixed base liquid outlet that are respectively connected to the infusion pipeline, and the fixed base liquid inlet and the fixed base liquid outlet are connected through the liquid flow channel 11 on the adjustment rod 2; There is a fixed base liquid inlet connected to the infusion pipeline and the regulating rod liquid outlet connected to the infusion pipeline is provided on the regulating rod 2, and the regulating rod liquid inlet and the fixed base liquid outlet are connected through the liquid flow channel 11 on the regulating rod 2. .

The fixed base 1 is provided with an adjustment fixed seat 4 which accommodates a chute 42 inside, and the setting of the adjustment fixed seat 4 can well fix components such as the pulley 43 and the moving pressure plate 41 .

In the above-mentioned adjuster, the two ends of the chute 42 on the adjusting fixing base 4 are provided with cut-off positions 44 for limiting the displacement of the pulley 43 . By limiting the excessive displacement of the pulley 43, the cut-off position 44 can be set in conjunction with the moving pressure plate 41, which can well limit the maximum displacement of the pulley 43, and cooperate with the restriction of the auxiliary plate by the moving pressure plate 41, which is more convenient to control, reduce misoperation and avoid adjustment Stick 2 comes out.

The infusion regulator is provided with a regulating rod 2 that can change its position and change the cross-sectional area of the liquid flow channel 11 for the liquid to pass through with different positions. The regulating rod 2 is preferably provided with various embodiments such as the regulating rod 2 in an open or semi-open structure, or the regulating rod 2 in a hollow structure.

The adjustment rod 2 is cylindrical, and the outer diameter of the adjustment rod 2 is greater than or equal to the inner diameter of the adjustment rod channel 12. When installing, it can be pressed into the adjustment rod channel 12 with a little force, so that the adjustment rod 2 and the adjustment rod channel 12 can be closely matched with each other. To avoid liquid seepage and leakage, the adjustment rod 2 can also be a cuboid or other shape, and the outer diameter of the adjustment rod 2 is slightly larger than or equal to the inner diameter of the adjustment rod channel 12, so that the installation is convenient and the adjustment rod 2 will not be broken.

The adjusting rod 2 is provided with a closed ring 24 bulging outward, at least one of which is a complete closed ring surrounding the adjusting rod 2 , and is disposed at the rear of the adjusting rod 2 . The closed ring 24 is preferably provided with two or more channels, and the arrangement of the closed ring 24 can provide better sealing between the adjusting rod 2 and the adjusting rod channel 12 . The cross-section of the closed ring 24 is preferably a semicircle, but can also be a trapezoid or other shapes.

The fixed base 1 accommodates a fixed base liquid inlet and a fixed base liquid outlet which are respectively connected to the infusion pipeline. The adjusting rod 2 preferably adopts an open or semi-open structure.

The adjusting rod 2 adopts an open or semi-open structure. The adjusting rod 2 is provided with a through hole serving as a liquid flow channel 11 , and the through hole is provided with one or spaced apart with different apertures. When there is one through hole, the shape of the bottom of the fixed base 1 corresponds to the through hole on the adjusting rod 2, and the corresponding cross-sectional area is zero at the minimum and equal to the entire through hole at the maximum. When the through-holes are arranged at intervals and with different apertures, the through-holes with different apertures correspond to the shape of the bottom of the fixed base 1, and the corresponding cross-sectional area is zero at the minimum, and equal to the cross-sectional area of the entire maximum through-hole at the maximum. In particular, the minimum cross-sectional area of the adjacent through holes increases sequentially in one direction, such as from top to bottom, so that the cross-sectional areas of the through holes on the adjusting rod 2 and the bottom shape of the fixed base 1 are sequentially corresponding increase or decrease. When adjusting the infusion flow rate, the infusion flow rate can be sequentially increased or decreased, which is convenient for the infusion to adjust the flow rate. The cross-section of the through hole can be triangular, circular or other shapes.

The fixed base 1 is provided with a fixed base liquid inlet that communicates with the infusion pipeline, the regulating rod 2 is provided with a regulating rod liquid outlet that communicates with the infusion pipeline, and the regulating rod 2 is provided with a regulating rod liquid inlet that communicates with the liquid outlet of the fixed base. It is connected with the liquid outlet of the adjusting rod, the liquid inlet of the adjusting rod and the liquid outlet of the fixed base through the liquid flow channel 11 on the adjusting rod 2. At this time, the adjusting rod 2 preferably adopts a hollow structure, and the wall of the adjusting rod 2 can be completely sealed. An opening is provided at the end of the adjusting rod 2; or the outer wall of the adjusting rod 2 is provided with a sidewall groove as a liquid pipeline; set up.

The fixed base 1 can also be provided with a fixed base liquid outlet that communicates with the infusion pipeline, the regulating rod 2 is provided with a regulating rod liquid inlet that communicates with the infusion pipeline, and the regulating rod 2 is provided with a regulating rod inlet that communicates with the fixed base liquid inlet. The adjusting rod 2 preferably adopts a hollow structure, the liquid inlet of the fixed base and the liquid outlet of the adjusting rod are still connected through the liquid flow channel 11 on the adjusting rod 2, and the connection relationship of each channel can be changed similarly.

The fixed base 1 can not only coordinate with a single groove on the regulating rod 2 as the liquid flow channel 11 to adjust the infusion flow rate, but also cooperate with two or more grooves on the regulating rod 2 as the liquid flow channel 11 to adjust the infusion flow rate; Alternatively, more than one liquid pipeline is arranged in the fixed base and various combinations of one or more grooves on the adjusting rod 2 serving as the liquid flow channel 11 can cooperate to adjust the infusion flow rate.

When two or more adjusting rods 2 are used, the adjusting rods 2 may have the same structure or different structures. Even two or more structural modes of the same structure or different structures can be adopted on the same adjusting rod 2 . In this way, the cross-sectional area of the liquid flow channel 11 can be adjusted more accurately, and the flow rate of the infusion liquid can be adjusted more accurately.

The adjusting rod 2 extends backward with an auxiliary plate, which is used to limit the dislocation of the elastic piece and adjust the adjusting rod 2 in cooperation with the moving pressing plate 41 . The upper part of the auxiliary plate is preferably arc-shaped, so as to correspond to the moving pressing plate 41 at different angles. A return spring 31 is provided between the adjusting rod 2 and the fixed base 1 to push them apart.

The adjuster is provided with a moving pressure plate 41 which is fixed to the holder at the hinged position of the moving pressure plate 41 , the lower part corresponds to the auxiliary plate, and the upper part corresponds to the pulley 43 . The moving platen 41 moves with the fixed axis of the moving platen 41 as the axis. The setting of the motion pressure plate enlarges the adjustment movement distance of the adjustment rod 2, makes the adjustment of the infusion flow rate smoother, improves the speed regulation performance of the infusion regulator, and also avoids the infusion flow rate drift of the pulley 43 due to inactive sliding.

The adjuster is provided with a movable pulley 43 with an anti-skid groove on the outer periphery, and the setting of the pulley 43 can facilitate the operator to adjust the flow rate of the infusion. The pulley 43 is provided with a pulley shaft, which is symmetrically arranged on both sides of the pulley 43 . The holder is provided with a chute 42 for the movement of the pulley shaft, and the chute 42 can effectively control the movement track of the pulley shaft. When the chute 42 adopts a single-sided or double-sided wave-shaped guide rail, the discontinuous constant-speed adjustment of the flow rate of the liquid flow channel 11 can be realized. When the chute 42 adopts the parallel guide rail mode, the stepless constant speed adjustment of the liquid flow channel 11 can be realized, and it is easier to adjust the infusion flow rate.

The regulator is provided with a scale panel and a flow rate indicator, the scale panel is fixed on the fixed base 1, and the corresponding flow rate indicator moves synchronously with the pulley 43, and the two cooperate to indicate the reading of the infusion flow rate and/or infusion flow state of the infusion set. Between the adjusting rod 2 and the fixed base 1, a blocking device is provided to prevent the internal components such as the adjusting rod 2 and the adjusting rod channel 12 from communicating with the outside world.

The blocking device is composed of the blocking inner ring 122 , the blocking sealing gasket 123 and the blocking outer ring 121 . Other barrier structures such as flexible barrier films can also be used. The regulating wheel is provided with a blocking inner ring 122 surrounding the regulating rod 2 , which is circular, and the blocking inner ring 122 is preferably coaxial with the regulating rod 2 . A barrier gasket 123 is arranged between the barrier inner ring 122 and the barrier outer ring 121 . The barrier gasket 123 is annular and is placed on the fixing groove of the barrier gasket 123 of the barrier outer ring 121 to play a sealing role.

The fixing base 1 is provided with an outer barrier ring 121 with a tight-fitting inner barrier ring 122 and a fixing groove for a barrier gasket 123 . The blocking outer ring 121 is preferably circular, and has the same axis as the adjusting rod channel 12 . The barrier device can also be a flexible barrier film. One side of the flexible barrier film is fixed on the auxiliary plate, and the other side is fixed on the fixed base 1 , surrounding the adjusting rod 2 , the adjusting rod channel 12 and the elastic member. The blocking inner ring 122, the blocking sealing gasket 123 and the blocking outer ring 121 cooperate to effectively separate the internal components from the outside. During the use of the device, the internal components such as the adjusting rod 2 and the adjusting rod channel 12 are kept in a sterile state. The application of the blocking device can also well maintain the positional state of the adjusting rod 2 and the adjusting rod channel 12 .

As a preferred embodiment of the present invention, the top of the adjustment rod 2 is provided with an adjustment wheel 5, and the fixed base 1 is provided with a limit stopper 51 that protrudes from the surface of the fixed base 1 and is placed on the top of the adjustment wheel 5. Rotate the adjusting wheel 5 to adjust the length and/or angle of the adjusting rod extending into the adjusting rod channel 12 .

As a preferred embodiment of the present invention, the adjusting rod 2 is provided with an adjusting wheel 5 extending outward, the adjusting wheel 5 is extending upward and is provided with an adjusting wheel fixing shaft 53, and the bottom of the adjusting rod 2 is closely attached to the adjusting rod channel 12 Bottom, the fixed base 1 is provided with a holder 54 for accommodating the fixing shaft hole of the adjusting wheel, the adjusting wheel 5 can be axially rotated along the adjusting rod channel 12, and the adjusting rod 2 is adjusted by rotating the adjusting wheel 5. Adjust the angle within the rod channel 12 .

As a preferred embodiment of the present invention, the top of the adjusting rod 2 is provided with an adjusting wheel 5 , the adjusting rod 2 is connected with the adjusting rod channel 12 by threads, and the fixing base 1 is provided with a surface protruding from the fixing base 1 . A limit stop 51 placed on the top of the adjusting wheel 5 is used to adjust the length and angle of the adjusting rod extending into the adjusting rod channel 12 by rotating the adjusting wheel 5 .

As a preferred embodiment of the present invention, a circle of positioning chassis 52 is provided on the fixed base 1, a circle of positioning grooves is provided along the upper surface of the positioning chassis 52, and at least one positioning protrusion is provided below the adjustment wheel 5, and the adjustment wheel 5 passes through The positioning protrusion is inserted into the positioning groove for positioning.

As a preferred embodiment of the present invention, the positioning chassis 52 is provided with a circle of positioning grooves whose heights change sequentially, and the positioning protrusions are embedded in the positioning grooves for positioning while adjusting the length and angle of the adjustment rod 2 extending into the liquid flow channel 11. .

As a preferred embodiment of the present invention, the positioning chassis 52 is provided with a circle of positioning grooves with continuously changing heights, the positioning protrusions are embedded in the positioning grooves of different heights for positioning, and the length and angle of the adjustment rod extending into the liquid flow channel 11 are adjusted at the same time. .

As a preferred embodiment of the present invention, the adjusting rod 2 is connected with the adjusting rod channel 12 through a screw thread.

As a preferred embodiment of the present invention, the adjustment wheel 5 is provided with a flow velocity scale line arranged around the adjustment wheel 5 .

As an embodiment of the present invention, the adjusting rod channel 12 is provided with an internal thread, the outside of the adjusting rod 2 is provided with an external thread, and the fixed base 1 is provided with a limiting block 51 for limiting the displacement of the adjusting rod 2 . The setting of the limit stopper 51 can well limit the maximum displacement of the adjusting rod 2 , which is convenient for manipulation, reduces misoperation and prevents the adjusting rod 2 from coming out.

The infusion regulator is provided with adjusting rods 2 that can change positions and change the cross-sectional area of the liquid flow channel 11 for liquid to pass through with different positions. The adjustment rod 2 is cylindrical, and the outer diameter of the adjustment rod 2 is greater than or equal to the inner diameter of the adjustment rod channel 12. When installing, it can be pressed into the adjustment rod channel 12 with a little force, so that the adjustment rod and the adjustment rod channel 12 can be closely matched with each other to avoid Seepage, leakage. The adjusting rod 2 can also adopt a rectangular parallelepiped or other shapes. Preferably, the outer diameter of the adjustment rod 2 is slightly larger than or equal to the inner diameter of the adjustment rod channel 12, so that the installation is convenient and the adjustment rod 2 will not be broken.

The setting of the internal thread on the adjusting rod channel 12 and the external thread on the adjusting rod can facilitate speed regulation, and can better make the adjusting rod 2 and the adjusting rod channel 12 cooperate closely with each other, which can better avoid liquid seepage and leakage. .

When the adjusting rod 2 adopts an open or semi-open structure, the adjusting rod 2 is provided with a through hole as the liquid flow channel 11 , and the through hole is provided with one or spaced apart and different apertures. When there is one through hole, the shape of the bottom of the fixed base 1 corresponds to the through hole on the adjustment rod 2, and the corresponding cross-sectional area is zero at the minimum and equal to the entire through hole at the maximum. When the through holes are arranged at intervals and with different diameters, the through holes with different diameters correspond to the shape of the bottom of the fixed base 1, and the corresponding cross-sectional area is zero at the minimum and equal to the cross-sectional area of the entire maximum through-hole at the maximum. In particular, the minimum cross-sectional area of the adjacent through holes increases sequentially in one direction, such as from top to bottom, so that the cross-sectional areas of the through holes on the adjusting rod 2 and the bottom shape of the fixed base 1 correspond in sequence. increase or decrease. When adjusting the infusion flow rate, the infusion flow rate can be sequentially increased or decreased, which is convenient for the infusion to adjust the flow rate. The cross-section of the through hole can be triangular, circular or other shapes.

When the adjusting rod 2 adopts a hollow structure, the wall of the adjusting rod 2 can be completely sealed, and the end of the adjusting rod 2 is provided with an opening as a liquid flow channel; or the outer wall of the adjusting rod 2 is provided with a sidewall groove as a liquid pipeline; The outer wall of the rod 2 is provided with at least one through hole, and the through hole is provided with one or spaced apart with different apertures. The adjusting rod 2 adjusts the flow rate by changing the position along the adjusting rod channel 12 and changing the area of the intersection between the cross section of the liquid flow channel 11 on the adjusting rod 2 and the bottom shape of the fixed base 1 with different positions. Preferably, the movement track of the regulating rod 2 deviates in one direction, such as increasing sequentially from top to bottom or clockwise, so that the intersecting area of the regulating rod 2 and the cross-sectional area of the liquid flow channel 11 increases or decreases sequentially. When adjusting the infusion flow rate, the infusion flow rate can be sequentially increased or decreased, which is convenient for adjusting the infusion flow rate.

The adjustment wheel 5 extends outward from the adjustment rod 2. The adjustment wheel 5 is in the shape of a disc as a whole. The center of the adjustment wheel 5 is set on the adjustment rod 2. The adjusting rod 2 rotates around the axis and rotates relative to the fixed base 1 . The adjusting wheel 5 is extended upward with an adjusting wheel fixing shaft, and the fixing base 1 is provided with a holder for accommodating the fixing shaft hole of the adjusting wheel. The setting of the fixing shaft of the adjusting wheel and the fixing device can fix the adjusting wheel 5 well.

A positioning chassis 52 extends outward from the fixed base 1 , the adjusting wheel 5 serves as a positioning moving plate, and a positioning device is provided between the positioning chassis 52 and the positioning moving plate. The positioning device may be a positioning protrusion and a positioning groove that cooperate with each other.

Preferably, the positioning device is a hemispherical protrusion and a hemispherical depression that cooperate with each other, the positioning device is a protrusion that sunken.

There are preferably multiple sets of positioning means. The setting of the positioning device can indicate whether the speed regulation is in place, which is convenient for the setting of the flow rate, and avoids mistakes in the adjustment and affects the process of the infusion. The setting of the positioning device can also ensure that after the flow rate is set, it will not easily change, resulting in flow rate drift. The heights of the positioning grooves change sequentially along one direction, such as increasing from top to bottom, so that the corresponding cross-sectional areas of the circular through holes 21 on the adjusting rod 2 and the liquid flow channels 11 increase or decrease sequentially. When adjusting the flow rate, the flow rate can be increased or decreased in sequence, which is convenient for adjusting the flow rate.

As a preferred embodiment, the positioning grooves are distributed in a stepped shape along the circumference, and the height of the center point of the positioning groove depression gradually decreases in a clockwise direction. The rod 2 makes a corresponding displacement to achieve the purpose of setting the flow rate.

When the positioning groove adopts a recess with a stepped height change, a discontinuous constant-speed adjustment of the flow rate of the liquid flow channel 11 can be realized. When the positioning groove adopts a concave with a continuous height change, the stepless constant speed adjustment of the liquid flow channel 11 can be realized, and it is easier to adjust the flow rate.

The above-mentioned regulator is provided with a scale panel and a flow rate indicator, the scale panel is fixed on the fixed base 1, and the corresponding flow rate indicator moves synchronously with the adjusting wheel 5, and the two cooperate to indicate the reading of the infusion flow rate and infusion flow state of the infusion set. Between the adjusting rod 2 and the fixed base 1, a blocking device is provided to prevent the internal components such as the adjusting rod 2 and the adjusting rod channel 12 from communicating with the outside world.

As a preferred embodiment of the present invention, two sides of the fixed base 1 are provided with regulating valve grooves, and connected to the top of the regulating rod 2 is provided with a pawl 6 that is wrapped outside the fixed base 1 and moves against the groove wall.

As a preferred embodiment of the present invention, the top end of the adjusting rod 2 is provided with an adjusting ring 61 .

As a preferred embodiment of the present invention, a plurality of adjusting teeth 62 are provided on the two opposite adjusting valve grooves from top to bottom, and the top of the adjusting rod 2 extends downward with adjusting rods that are covered on the outside of the fixed base 1 and clamped on both sides. The two pawls 6 are oppositely arranged on the teeth 62 .

As a preferred embodiment of the present invention, the width of the grooves of the two regulating valves is greater than the width between the two pawls 6 .

As a preferred embodiment of the present invention, a locking position is provided between the fixed base 1 and the adjusting rod 2 . The setting of the locking card position can well limit the maximum displacement of the adjusting rod, which is convenient for manipulation and reduces misoperation.

As a preferred embodiment of the present invention, the fixed base 1 and the adjusting rod 2 are made in one piece, or the fixed base 1 and the adjusting rod 2 are provided independently of each other.

As a preferred embodiment of the present invention, the fixed base 1 and the adjusting rod 2 are connected into one body by a connecting belt 7 of a bendable member.

The integrated production of the connecting belt can further reduce the product precision error caused by different injection molding conditions, and improve the matching rate of the adjusting rod 2 and the adjusting rod channel 12 .

As an embodiment of the present invention, the fixed base 1 is provided with a regulating valve groove. When the regulating valve groove is a wavy groove, different regulating valve grooves and the upper plane of the regulating rod channel 12 on the fixed base 1 have different distances. The grooves of the regulating valve are distributed in a wave shape, the lengths of different regulating valve grooves are the same, and the two sides are arranged in parallel, and the pawls 6 are respectively fixed to the corresponding regulating valve grooves. The adjacent regulating valve grooves and the upper plane of the regulating rod channel 12 of the fixed base 1 have different distances and increase in turn in one direction, such as from top to bottom, so that when the infusion flow rate is adjusted, the regulating rod 2 can be adjusted. Increase or decrease the adjustment displacement in turn to facilitate the adjustment of the infusion flow rate. The cross section of the regulating valve groove can be toothed, stepped, wavy or other shapes. The groove of the regulating valve is a wavy groove, which is matched with the regulating rods 2 of different structures, and can realize the discontinuous constant-speed regulation of the infusion flow of the liquid flow channel 11 .

When the regulating valve groove is a groove extending a plane, the regulating valve groove is preferably a rectangle with two sides arranged in parallel and symmetrically, and the pawls 6 are respectively fixed to the corresponding regulating valve grooves. In particular, the adjacent regulating valve grooves and the upper plane of the regulating rod channel 12 of the fixed base 1 have different distances and increase in turn in one direction, such as from top to bottom, so that when the infusion flow rate is adjusted, the infusion flow rate can be adjusted. The adjustment rod 2 increases or decreases the adjustment displacement in turn, which is convenient to adjust the infusion flow rate. The cross section of the regulating valve groove can be straight, curved or other shapes. When the groove of the regulating valve adopts the groove of the extension plane and the closed structure regulating rod 2 is set, the stepless constant speed adjustment of the infusion flow of the liquid flow channel 11 can be realized, and the infusion flow rate can be adjusted more easily.

The adjusting rod 2 is provided with a pawl 6 linked with the adjusting rod 2 , the fixed base 1 is provided with a regulating valve groove, and the adjusting rod 2 is provided with a pawl 6 , which cooperate with each other to determine the position of the adjusting rod 2 . There are preferably two grooves of the regulating valve, and two pawls 6, and the distance between the two grooves of the regulating valve is greater than the distance between the corresponding two pawls 6, so that the pawls 6 can more easily grasp the grooves of the regulating valve, so that Strengthen the firmness of both operations. There are preferably two or more combinations of the two matching positions. The cooperating use of the groove of the regulating valve and the pawl 6 can facilitate the setting of the infusion flow rate, and can also ensure that the infusion flow rate will not be easily changed after the infusion flow rate is set, causing the infusion flow rate to drift. The cross section of the pawl 6 can be "L" shaped, rectangular, triangular, semi-circular or other shapes, and the flow rate regulating valve is provided with a regulating ring 61 which is convenient for holding and operating the flow rate regulating valve.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present invention, and these equivalent modifications or replacements are included in the claims of the present application. within a limited range.

Claims (8)

1. An infusion flow rate regulator, characterized in that:

the device comprises a fixed base and an adjusting rod, wherein the fixed base is provided with a fixed base liquid inlet and a fixed base liquid outlet;

the adjusting rod is provided with a liquid flow channel connected between the liquid inlet of the fixed base and the liquid outlet of the fixed base;

an adjusting rod channel is arranged on the fixed base;

a movable adjusting rod is arranged in the adjusting rod channel, and the adjusting rod channel are sealed in a watertight manner;

a blocking device is arranged between the adjusting rod and the fixed base;

adjusting the cross-sectional area of the liquid flow channel for liquid to pass through by adjusting the area of the overlapped part of the shape of the upper bottom of the fixed base and the cross-sectional shape of the liquid flow channel on the adjusting rod;

the top end of the adjusting rod is provided with an auxiliary pressing plate, the adjusting rod channel protrudes out of the upper surface of the fixed base, a reset spring is arranged between the auxiliary pressing plate and the fixed base, an adjusting fixed seat and a moving pressing plate are arranged above the auxiliary pressing plate, one end of the moving pressing plate is arranged above the auxiliary pressing plate, the other end of the moving pressing plate is hinged and fixed on the adjusting fixed seat, the adjusting fixed seat is provided with a chute, a pulley capable of horizontally moving along the chute is arranged in the chute, the bottom of the pulley is pressed on the moving pressing plate, the driving pressing plate gradually presses down the auxiliary pressing plate in the sliding process of the pulley, or the adjusting rod is provided with an adjusting wheel extending outwards, the adjusting wheel extends upwards to be provided with an adjusting wheel fixed shaft, the bottom of the adjusting rod is tightly attached to the bottom of the adjusting rod channel, the fixed base is provided with a fixer for accommodating an adjusting wheel fixed shaft hole, the adjusting wheel can axially rotate along the adjusting rod channel, the angle of the adjusting rod in the adjusting rod channel is adjusted by rotating the adjusting wheel, or the top of the adjusting rod is provided with the adjusting wheel, the adjusting rod is connected with the adjusting rod channel through threads, the fixed base is provided with a limiting stopper which protrudes out of the surface of the fixed base and is arranged at the top of the adjusting wheel, the length and the angle of the adjusting rod which extends into the adjusting rod channel are adjusted by rotating the adjusting wheel, or the two sides of the fixed base are provided with adjusting valve grooves, the top end of the adjusting rod is provided with an adjusting ring, and the top end of the adjusting rod extends downwards and is provided with a pawl which is coated outside the fixed base and moves close to the groove wall;

the regulating rod is used for intercepting by changing the length and/or the angle of the regulating rod channel embedded into the bottom, and the section shape of the liquid flow channel on the regulating rod is fitted with the shape of the bottom on the fixed base, so that the liquid flow channel can be completely intercepted.

2. An infusion flow rate regulator, characterized in that:

the device comprises a fixed base and an adjusting rod, wherein the fixed base is provided with a fixed base liquid inlet and a fixed base liquid outlet;

the adjusting rod is provided with a liquid flow channel connected between the liquid outlet of the fixed base and the liquid inlet of the adjusting rod;

an adjusting rod channel is arranged on the fixed base;

a movable adjusting rod is arranged in the adjusting rod channel, and the adjusting rod channel are sealed in a watertight manner;

a blocking device is arranged between the adjusting rod and the fixed base;

the adjusting rod is provided with an adjusting rod liquid inlet and an adjusting rod liquid outlet which are communicated with the fixed base liquid outlet;

adjusting the cross-sectional area of the liquid flow channel for liquid to pass through by adjusting the area of the overlapped part of the shape of the upper bottom of the fixed base and the cross-sectional shape of the liquid flow channel on the adjusting rod;

the top end of the adjusting rod is provided with an auxiliary pressing plate, the adjusting rod channel protrudes out of the upper surface of the fixed base, a reset spring is arranged between the auxiliary pressing plate and the fixed base, an adjusting fixed seat and a moving pressing plate are arranged above the auxiliary pressing plate, one end of the moving pressing plate is arranged above the auxiliary pressing plate, the other end of the moving pressing plate is hinged and fixed on the adjusting fixed seat, the adjusting fixed seat is provided with a chute, a pulley capable of horizontally moving along the chute is arranged in the chute, the bottom of the pulley is pressed on the moving pressing plate, the driving pressing plate gradually presses down the auxiliary pressing plate in the sliding process of the pulley, or the adjusting rod is provided with an adjusting wheel extending outwards, the adjusting wheel extends upwards to be provided with an adjusting wheel fixed shaft, the bottom of the adjusting rod is tightly attached to the bottom of the adjusting rod channel, the fixed base is provided with a fixer for accommodating an adjusting wheel fixed shaft hole, the adjusting wheel can axially rotate along the adjusting rod channel, the angle of the adjusting rod in the adjusting rod channel is adjusted by rotating the adjusting wheel, or the top of the adjusting rod is provided with the adjusting wheel, the adjusting rod is connected with the adjusting rod channel through threads, the fixed base is provided with a limiting stopper which protrudes out of the surface of the fixed base and is arranged at the top of the adjusting wheel, the length and the angle of the adjusting rod which extends into the adjusting rod channel are adjusted by rotating the adjusting wheel, or the two sides of the fixed base are provided with adjusting valve grooves, the top end of the adjusting rod is provided with an adjusting ring, and the top end of the adjusting rod extends downwards and is provided with a pawl which is coated outside the fixed base and moves close to the groove wall;

the regulating rod is used for intercepting by changing the length and/or the angle of the regulating rod channel embedded into the bottom, and the section shape of the liquid flow channel on the regulating rod is fitted with the shape of the bottom on the fixed base, so that the liquid flow channel can be completely intercepted.

3. The infusion flow rate regulator according to claim 1 or 2, characterized in that: the liquid flow channel is a groove distributed at intervals or a groove with continuously changed cross section area.

4. The infusion flow rate regulator according to claim 1 or 2, characterized in that: the adjusting rod is provided with at least one through hole, and the adjusting rod changes the size of the area of the intersection part between the cross section of the through hole in the adjusting rod and the shape of the bottom of the fixing base through vertical movement to adjust the flow velocity.

5. The infusion flow rate regulator according to claim 1 or 2, characterized in that: the regulating rod is provided with a liquid flow channel with continuously changed cross section area, and the regulating rod changes the size of the area of the intersection part between the cross section shape of the liquid flow channel on the regulating rod and the shape of the bottom on the fixed base by vertical movement, horizontal rotation or spiral movement along the regulating rod channel to regulate the flow rate.

6. The infusion flow rate regulator according to claim 2, wherein: the liquid outlet device is characterized in that a liquid flow channel connected between the liquid outlet of the fixed base and the liquid inlet of the adjusting rod is arranged on the outer wall of the adjusting rod, a hollow cavity is arranged in the adjusting rod, a liquid outlet channel communicated with the hollow cavity is arranged on the adjusting rod, and the liquid outlet channel and the adjusting rod are integrally manufactured.

7. The infusion flow rate regulator according to claim 1 or 2, characterized in that: and the adjusting wheel is provided with flow speed scale marks arranged around the adjusting wheel.

8. The infusion flow rate regulator according to claim 1 or 2, characterized in that: the fixed base and the adjusting rod are manufactured integrally, or the fixed base and the adjusting rod are arranged independently.

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