CN216496849U

CN216496849U - Novel medical accurate flow control valve

Info

Publication number: CN216496849U
Application number: CN202122301559.6U
Authority: CN
Inventors: 吴俊�; 陆汉超; 庞超
Original assignee: Hantech Medical Device Co ltd
Current assignee: Hantech Medical Device Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-05-13
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a novel medical precise flow regulating valve, which comprises a lower shell, silica gel and an upper shell, wherein the silica gel is arranged on the upper shell, the lower shell is rotatably arranged on the upper shell, a regulating cavity is formed between the upper shell and the lower shell, and the silica gel is arranged on the upper shell and positioned in the regulating cavity, and the novel medical precise flow regulating valve is characterized in that: be provided with on the epitheca with adjust the communicating feed liquor hole of chamber, set up the through liquid hole of lining up with the feed liquor hole on the silica gel, be formed with interior sealing ring on the relative terminal surface of inferior valve with the regulation chamber, external seal ring, the parting bead that is used for connecting interior sealing ring and external seal ring, it has seted up out liquid hole and annular flowing back groove to lie in between interior sealing ring and the external seal ring on the inferior valve, the one end and the play liquid hole intercommunication of flowing back groove, the other end of flowing back groove extends to parting bead department, the groove depth of flowing back groove is from the depth to the other end from the one end of flowing back groove gradually to shallowly. The utility model provides a novel medical precise flow regulating valve which has the characteristics of good sealing effect, stable regulation and high precision.

Description

Novel medical accurate flow control valve

Technical Field

The utility model relates to the technical field of medical infusion equipment, in particular to a novel medical precise flow regulating valve.

Background

The traditional infusion apparatus flow regulator is arranged outside an infusion catheter, and the catheter is pressed by a pressing wheel to realize the flow regulation of the infusion apparatus. The flow regulator with the structure has low flow regulation precision and unmeasurable flow, and medical workers can estimate the flow only by counting the number of drops in the dropping funnel according to experience, so that the workload of the medical workers is increased, and the flow regulator hardly controls the flow rate effectively.

Therefore, the current chinese utility model with publication number CN207640747U discloses "a flow regulator", including last casing and lower casing, upward be equipped with the feed liquor pipe in the casing and connect, be equipped with out the liquid pipe in the lower casing and connect, go up casing, lower casing and pass through central buckle interconnect, but relative rotation, its characterized in that: an annular sealing gasket made of silica gel is fixedly arranged on the lower end face of the upper shell, a liquid inlet hole communicated with the liquid inlet conduit joint is arranged on the sealing gasket, the sealing gasket is abutted against the upper end face of the lower shell to form sealing fit, an annular bulge corresponding to the sealing gasket is arranged on the upper end face of the lower shell, the radial width of the bulge is smaller than that of the sealing gasket, an annular groove corresponding to the liquid inlet hole is arranged on the upper end face of the bulge, the annular groove is in disconnection arrangement, one end of the annular groove is a liquid supply end, the other end of the annular groove is a liquid outlet end, the depth of the annular groove from the liquid supply end to the liquid outlet end is gradually increased, the liquid outlet end is provided with a liquid outlet hole communicated with the liquid outlet conduit joint, a locking end face liquid inlet hole, the annular groove and a liquid outlet hole are arranged between the liquid supply end and the liquid outlet end, the width of the annular groove is larger than the diameter of the liquid inlet hole, and the annular groove is positioned in the middle position of the bulge, an annular groove for arranging a sealing gasket is formed in the lower end face of the upper shell, and the bottom face of the sealing gasket is lower than that of the lower shell.

The prior transfusion device flow regulating device in China does not accurately control the transfusion flow, and when some special patients need to control the liquid medicine to enter the body for metering, the flow rate cannot be accurately regulated and needs a doctor to determine the flow rate by counting the number of drops.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a novel medical precise flow regulating valve which has the characteristics of good sealing effect, stable regulation and high precision.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a novel medical accurate flow control valve, includes inferior valve, silica gel and epitheca, and silica gel installs on the epitheca, and the inferior valve rotates to be set up on the epitheca, forms between epitheca and the inferior valve and adjusts the chamber, and silica gel installs and lies in on the epitheca and adjusts the intracavity, its characterized in that: be provided with on the epitheca with adjust the communicating feed liquor hole of chamber, set up on the silica gel and lead to the liquid hole with the feed liquor hole is neat, be formed with interior sealing ring on the relative terminal surface in chamber with adjusting on the inferior valve, the external seal ring, be used for connecting the parting bead of interior sealing ring and external seal ring, lie in on the inferior valve and seted up out liquid hole and annular fluid-discharge tank between interior sealing ring and the external seal ring, the one end and the play liquid hole intercommunication of fluid-discharge tank, the other end of fluid-discharge tank extends to parting bead department, the groove depth of fluid-discharge tank is from the one end to the other end of fluid-discharge tank by the depth gradually to the shallowness.

As the improvement, the periphery wall of silica gel is gone up the interval and is formed with a plurality of rotation-proof stuck points, is formed with the silica gel groove that is used for installing silica gel on the epitheca, and the shape and the silica gel appearance looks adaptation in silica gel groove.

And the upper shell is extended with a connector for penetrating through the lower shell, the connector is provided with a locking groove, and the lower shell is provided with a snap ring for being clamped into the locking groove.

And the bottom of the silica gel groove of the upper shell is provided with two sealing diameters, namely an inner sealing diameter positioned on the inner side of the liquid inlet hole and an outer sealing diameter positioned on the outer side of the liquid inlet hole.

And then, improving the structure, wherein sealing strips are formed on two sides of the liquid inlet hole and are positioned between the inner sealing diameter and the outer sealing diameter.

And the liquid inlet hole of the upper shell is designed to be a cone with a large upper part and a small lower part.

And the lower shell liquid outlet hole is designed to be a cone with a small upper part and a big lower part.

Compared with the prior art, the utility model has the advantages that: the liquid medicine gets into between the inner seal ring and the outer seal ring of inferior valve from the feed liquor hole of epitheca and the through-liquid hole of silica gel, through rotating the inferior valve, make the through-liquid hole of silica gel move along the flowing back groove ring, when the inferior valve goes out liquid hole and silica gel through-liquid hole alignment, liquid medicine flow is the biggest, because the flowing back groove degree of depth is by the depth with anticlockwise, also by the depth to the shallow along with inferior valve counter-clockwise turning silica gel through-liquid hole and flowing back groove contact position degree of depth, thereby make liquid medicine flow to inferior valve play liquid hole speed slower more, through the velocity of flow when the different positions are arrived to counter-clockwise to the actual measurement inferior valve, after confirming the corresponding position, the printing flow scale, the inferior valve surface is printed with triangle arrow and the alignment of inferior valve apopore, the epitheca passes through the inferior valve arrow and confirms position printing flow scale, like this, correspond different scales through rotatory inferior valve, can realize flow control.

Drawings

FIG. 1 is a schematic structural diagram of the novel medical precise flow control valve in the embodiment of the utility model;

FIG. 2 is an exploded view of the novel medical precision flow control valve according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 in another orientation;

FIG. 4 is a cross-sectional view of a novel medical precision flow control valve in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an upper shell in an embodiment of the present invention;

FIG. 6 is a sectional view of the lower case in the embodiment of the present invention;

fig. 7 is a partially enlarged view of a portion a in fig. 6.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, the novel medical precise flow control valve in the present embodiment includes a lower shell 2, a silica gel 3, and an upper shell 1.

Wherein, the silica gel 3 is arranged on the upper shell 1, the lower shell 2 is rotatably arranged on the upper shell 1, a regulating cavity is formed between the upper shell 1 and the lower shell 2, the silica gel 3 is arranged on the upper shell 1 and is positioned in the regulating cavity, the upper shell 1 is provided with a liquid inlet hole 11 communicated with the regulating cavity, the silica gel 3 is provided with a liquid through hole 31 aligned with the liquid inlet hole 11, the end surface of the lower shell 2 opposite to the regulating cavity is provided with an inner sealing ring 221, an outer sealing ring 222 and a separating strip 223 used for connecting the inner sealing ring 221 and the outer sealing ring 222, the inner sealing ring 221 and the outer sealing ring 222 prevent the liquid medicine from flowing out from the gap between the silica gel 3 and the lower shell 2, the separating strip 223 is used for separating the area between the inner sealing ring 221 and the outer sealing ring 222, a liquid outlet hole 21 and an annular liquid discharge groove 23 are arranged between the inner sealing ring 221 and the outer sealing ring 222 on the lower shell 2, one end of the liquid discharge groove 23 is communicated with the liquid outlet hole 21, the other end of drain tank 23 extends to dividing bar 223, and the depth of drain tank 23 gradually decreases from one end to the other end of drain tank 23. Meanwhile, the upper case 1 extends to form a connector 14 for penetrating through the lower case 2, the connector 14 is provided with a locking groove 141, the lower case 2 is provided with a snap ring 24 for being snapped into the locking groove 141, and when the installation is carried out, the snap ring 24 of the lower case 2 is snapped into the locking groove 141 to complete the installation.

Preferably, the liquid inlet hole 11 of the upper shell 1 adopts a tapered design with a large upper part and a small lower part, so that the flow speed of the liquid medicine entering the regulating valve can be effectively reduced, and the leakage risk is reduced.

Preferably, the liquid outlet hole 21 of the lower shell 2 is designed to be tapered with a smaller upper part and a larger lower part, so that the liquid medicine can better flow out.

Furthermore, a plurality of anti-rotation clamping points 32 are formed on the peripheral wall of the silica gel 3 at intervals, a silica gel groove 13 for installing the silica gel 3 is formed on the upper shell 1, the shape of the silica gel groove 13 is matched with the shape of the silica gel 3, and the liquid passing hole 31 of the silica gel 3 and the liquid inlet hole 11 of the upper shell 1 are ensured to be always kept in the opposite state when the lower shell 2 rotates.

Furthermore, the bottom of the silica gel groove 13 of the upper shell 1 is provided with two sealing diameters, namely an inner sealing diameter 121 located inside the liquid inlet hole 11 and an outer sealing diameter 122 located outside the liquid inlet hole 11, sealing strips 123 are formed on two sides of the liquid inlet hole 11, and the sealing strips 123 are located between the inner sealing diameter 121 and the outer sealing diameter 122, so that the liquid medicine can be prevented from flowing out from the gap between the silica gel 3 and the upper shell 1.

During the installation, silica gel 3 is installed in 1 silica gel groove 13 of epitheca, and 3 logical liquid holes 31 of silica gel align with 1 feed liquor hole 11 of epitheca, installs inferior valve 2 and epitheca 1 again, makes 2 snap rings 24 of inferior valve block go into 1 locking groove 141 of epitheca in, can accomplish the installation.

The liquid medicine enters between the inner sealing ring 221 and the outer sealing ring 222 of the lower shell 2 from the liquid inlet hole 11 of the upper shell 1 and the liquid through hole 31 of the silica gel 3, the liquid through hole 31 of the silica gel 3 moves along the liquid discharge groove 23 in the circumferential direction by rotating the lower shell 2, when the liquid outlet hole 21 of the lower shell 2 is aligned with the liquid through hole 31 of the silica gel 3, the liquid medicine flow is maximum, because the depth of the liquid discharge groove 23 changes from deep to shallow in the counterclockwise direction, the depth of the contact position between the liquid through hole 31 of the silica gel 3 and the liquid discharge groove 23 changes from deep to shallow along with the counterclockwise rotation of the lower shell 2, the speed of the liquid medicine flowing to the liquid outlet hole 21 of the lower shell 2 is slower, the flow rate is determined by actually measuring the flow rate when the lower shell 2 reaches different positions, the flow rate scale is printed, the triangular arrow is printed on the surface of the lower shell 2 to be aligned with the water outlet hole of the lower shell 2, the position printed on the upper shell 1 is determined by the arrow of the lower shell 2, and thus, the lower shell 2 corresponds to different scales by rotating, the flow regulation can be realized.

When the medical liquid medicine infusion apparatus is used, the medical liquid medicine infusion apparatus is matched, the flow rate of the infusion apparatus is controlled and adjusted by rotating the lower shell 2, and the scales and the flow rate numerical values printed on the upper shell 1 are aligned with the arrow of the lower shell 2, so that the metering size of the liquid medicine entering a human body can be effectively controlled.

Claims

1. The utility model provides a novel medical accurate flow control valve, includes inferior valve (2), silica gel (3) and epitheca (1), and silica gel (3) are installed on epitheca (1), and inferior valve (2) rotate to set up on epitheca (1), form between epitheca (1) and inferior valve (2) and adjust the chamber, and silica gel (3) are installed and are located on epitheca (1) and adjust the intracavity, its characterized in that: the liquid discharging device is characterized in that a liquid inlet hole (11) communicated with the adjusting cavity is formed in the upper shell (1), a liquid through hole (31) aligned with the liquid inlet hole (11) is formed in the silica gel (3), an inner sealing ring (221), an outer sealing ring (222) and a partition bar (223) used for connecting the inner sealing ring (221) and the outer sealing ring (222) are formed in the end face, opposite to the adjusting cavity, of the lower shell (2), a liquid outlet hole (21) and an annular liquid discharging groove (23) are formed between the inner sealing ring (221) and the outer sealing ring (222) on the lower shell (2), one end of the liquid discharging groove (23) is communicated with the liquid outlet hole (21), the other end of the liquid discharging groove (23) extends to the partition bar (223), and the groove depth of the liquid discharging groove (23) gradually decreases from one end to the other end of the liquid discharging groove (23).

2. The novel medical precise flow regulating valve according to claim 1, characterized in that: the periphery wall of silica gel (3) is gone up the interval and is formed with a plurality of rotation-proof stuck points (32), is formed with silica gel groove (13) that are used for installing silica gel on epitheca (1), the shape and silica gel (3) appearance looks adaptation of silica gel groove (13).

3. The novel medical precise flow regulating valve according to claim 1, characterized in that: extend on epitheca (1) and have been used for passing connector (14) of inferior valve (2), seted up locking groove (141) on connector (14), be formed with snap ring (24) that are used for the card to advance locking groove (141) on inferior valve (2).

4. The novel medical precise flow regulating valve according to claim 2, characterized in that: the bottom of the silica gel groove (13) of the upper shell (1) is provided with two sealing diameters, namely an inner sealing diameter (121) located on the inner side of the liquid inlet hole (11) and an outer sealing diameter (122) located on the outer side of the liquid inlet hole (11).

5. The novel medical precise flow regulating valve according to claim 4, characterized in that: and sealing strips (123) are formed on two sides of the liquid inlet hole (11), and the sealing strips (123) are positioned between the inner sealing diameter (121) and the outer sealing diameter (122).

6. The novel medical precise flow regulating valve according to claim 1, characterized in that: the liquid inlet hole (11) of the upper shell (1) adopts a tapered design with a large upper part and a small lower part.

7. The novel medical precise flow regulating valve according to claim 1, characterized in that: the liquid outlet hole (21) of the lower shell (2) adopts a conical design with a small upper part and a big lower part.