CN216519817U - Pressure reducing valve assembly and infusion device - Google Patents
Pressure reducing valve assembly and infusion device Download PDFInfo
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- CN216519817U CN216519817U CN202122748300.6U CN202122748300U CN216519817U CN 216519817 U CN216519817 U CN 216519817U CN 202122748300 U CN202122748300 U CN 202122748300U CN 216519817 U CN216519817 U CN 216519817U
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- 238000001802 infusion Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 166
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 18
- 238000003780 insertion Methods 0.000 abstract description 16
- 230000037431 insertion Effects 0.000 abstract description 16
- 230000008859 change Effects 0.000 description 12
- 239000012530 fluid Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 238000012356 Product development Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a pressure reducing valve component and an infusion device, wherein the pressure reducing valve component comprises a valve seat structure, a valve body structure and a valve core, the valve seat structure is enclosed to form an adjusting cavity, and an adjusting membrane is arranged in the adjusting cavity of the valve seat structure; the valve body structure is a first valve body or a second valve body, the first valve body is provided with an insertion pipe body which is in insertion connection and communication with an external pipeline, the second valve body is provided with a liquid inlet connecting pipe and a liquid outlet connecting pipe which are respectively connected with the external pipeline, and the first valve body or the second valve body is connected with the valve seat structure and encloses to form a balance cavity which is communicated with the regulating diaphragm; the valve core is movably arranged in the balance cavity and is abutted against the adjusting diaphragm, and the adjusting diaphragm floats relative to the valve core to adjust the pressure in the first valve body or the second valve body. The technical scheme of the utility model aims to enable the pressure reducing valve component to simultaneously have two connection modes of connecting in a pipe type or integrating in a plug-in type and an external pipeline, so that different installation requirements of users can be quickly met, and the use convenience of the pressure reducing valve component is improved.
Description
Technical Field
The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve assembly and an infusion device using the same.
Background
The pressure reducing valve is a valve which automatically keeps the outlet pressure stable by regulating and reducing the inlet pressure to a certain required outlet pressure and relying on the energy of the medium. The prior pressure reducing valve is usually installed in an external pipeline by adopting two modes of pipe connection or cartridge integration, but the prior pressure reducing valve is only provided with a fixed connection mode in the production process, so that the installation mode needs to be changed if needed, the structure of the pressure reducing valve needs to be greatly changed, the product development cost and the abnormal risk of product performance are increased, or other pressure reducing valves need to be replaced again for installation, and then different requirements of users cannot be quickly met.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a pressure reducing valve assembly, aiming at enabling the pressure reducing valve assembly to simultaneously have two connecting modes of connecting pipe type connection or plug-in type integration and an external pipeline, quickly meeting different installation requirements of users and improving the use convenience of the pressure reducing valve assembly.
In order to achieve the above object, the present invention provides a pressure reducing valve assembly for an infusion device, the pressure reducing valve assembly comprising:
the valve seat structure is enclosed to form an adjusting cavity, and an adjusting diaphragm is arranged in the adjusting cavity of the valve seat structure;
the valve body structure is a first valve body or a second valve body, the first valve body is provided with a plug-in pipe body which is in plug-in communication with an external pipeline, the second valve body is provided with a liquid inlet connecting pipe and a liquid outlet connecting pipe which are respectively connected with the external pipeline, and the first valve body or the second valve body is connected with the valve seat structure and encloses to form a balance cavity which is communicated with the adjusting membrane; and
the valve core is movably arranged in the balance cavity and is abutted against the adjusting diaphragm, and the adjusting diaphragm floats relative to the valve core to adjust the pressure in the first valve body or the second valve body.
In an embodiment of the present application, a first liquid inlet cavity and a first liquid outlet cavity which are communicated with each other are formed in the first valve body, and the first valve body is further provided with a first liquid inlet hole communicated with the first liquid inlet cavity and a first liquid outlet hole communicated with the first liquid outlet cavity;
when the first valve body is connected to the valve seat structure, a first yielding position port communicated with the first liquid outlet cavity is formed in the surface, facing the balance cavity, of the first valve body, the valve core is movably embedded in the first liquid inlet cavity and the first liquid outlet cavity and partially penetrates through the first yielding position port to be abutted against the adjusting membrane, and the valve core moves between the first liquid inlet cavity and the first liquid outlet cavity to adjust the passage area between the first liquid inlet cavity and the first liquid outlet cavity.
In an embodiment of the application, the first valve body further includes an insertion seat connected to the insertion pipe body, and the insertion seat is detachably connected to the valve seat structure to clamp and fix the adjusting diaphragm.
In an embodiment of this application, the grafting body is including the linkage segment and the grafting section that are connected, the grafting section deviates from the one end of linkage segment with the plug socket is connected, the linkage segment has been seted up first feed liquor hole, the grafting section has been seted up first play liquid hole, the grafting section is the toper setting, just the tapering of grafting section is along the orientation the direction of linkage segment reduces gradually.
In an embodiment of the present application, a first installation through hole communicating with the first liquid inlet cavity is formed in a surface of the first valve body facing away from the valve seat structure, and the valve element can penetrate through the first installation through hole and be embedded in the first liquid inlet cavity and the first liquid outlet cavity;
the pressure reducing valve assembly further comprises a valve cover and a reset spring, the valve cover is detachably connected to the first valve body and covers the first mounting through hole, one end of the reset spring is abutted to the valve cover, and the other end of the reset spring is abutted to one end, deviating from the adjusting diaphragm, of the valve core.
In an embodiment of the present application, a first backflow hole communicated with the first liquid outlet hole is further formed in a surface of the first valve body facing the balance cavity.
In an embodiment of the present application, the second valve body further includes a valve body, a second liquid inlet cavity and a second liquid outlet cavity are formed in the valve body and are communicated with each other, the valve body is further provided with a second liquid inlet hole communicated with the second liquid inlet cavity and a second liquid outlet hole communicated with the second liquid outlet cavity, the liquid inlet pipe is connected with the valve body and is communicated with the second liquid inlet hole, the liquid outlet pipe is connected with the valve body and is communicated with the second liquid outlet hole,
the valve main body is detachably connected with the valve seat structure, a second yielding position port communicated with the second liquid outlet cavity is formed in the surface, facing the balance cavity, of the valve main body, the valve core is movably embedded in the second liquid inlet cavity and the second liquid outlet cavity and partially penetrates through the second yielding position port to be abutted against the adjusting diaphragm, and the valve core moves between the second liquid inlet cavity and the second liquid outlet cavity to adjust the passage area between the second liquid inlet cavity and the second liquid outlet cavity.
In an embodiment of this application, the second feed liquor hole with the second goes out the liquid hole and sets up respectively in the relative both sides and the dislocation set of valve main part.
In an embodiment of the present application, the valve seat structure:
the base can be detachably connected with the first valve body or the second valve body, the base encloses to form the adjusting cavity and is provided with openings communicated with two opposite ends of the adjusting cavity, and the diaphragm is covered on one opening;
the adjusting spring is arranged in the adjusting cavity, and one end of the adjusting spring is abutted against one side, away from the valve core, of the diaphragm;
the movable block is movably arranged in the adjusting cavity and is connected with one end of the adjusting spring, which is far away from the diaphragm; and
the regulating block, the regulating block with base swing joint covers another the opening, just the regulating block with the movable block is connected, in order to drive the movable block can be close to the direction of diaphragm removes, in order to promote the regulating spring butt the diaphragm orientation the balanced intracavity floats.
The utility model also provides an infusion device comprising a pressure reducing valve assembly, the pressure reducing valve assembly comprising:
the valve seat structure is enclosed to form an adjusting cavity, and an adjusting diaphragm is arranged in the adjusting cavity of the valve seat structure;
the valve body structure is a first valve body or a second valve body, the first valve body is provided with a plug-in pipe body which is in plug-in communication with an external pipeline, the second valve body is provided with a liquid inlet connecting pipe and a liquid outlet connecting pipe which are respectively connected with the external pipeline, and the first valve body or the second valve body is connected with the valve seat structure and encloses to form a balance cavity which is communicated with the adjusting membrane; and
the valve core is movably arranged in the balance cavity and is abutted against the adjusting diaphragm, and the adjusting diaphragm floats relative to the valve core to adjust the pressure in the first valve body or the second valve body.
The pressure reducing valve assembly is applied to the infusion device and comprises a valve seat structure, a valve body structure and a valve core, wherein the valve seat structure is enclosed to form an adjusting cavity, and an adjusting membrane is arranged in the adjusting cavity of the valve seat structure. And the valve body structure is first valve body or second valve body, first valve body has the cartridge body of pegging graft intercommunication with external pipeline, the second valve body has the feed liquor takeover and goes out the liquid takeover of being connected with external pipeline respectively, so the user can select first valve body or second valve body according to external pipeline's mode, what external pipeline adopted is that the cartridge formula is integrated when, the user can select first valve body and valve seat structural connection, when the takeover tubular connection that external pipeline adopted, the user then can select second valve body and valve seat structural connection. The first valve body or the second valve body is connected to the valve seat structure and encloses to form a balance cavity communicated with the adjusting diaphragm, the valve core is movably arranged in the balance cavity and is abutted against the adjusting diaphragm, and therefore a user can drive the valve core to move through the floating of the adjusting diaphragm so as to adjust the pressure in the first valve body or the second valve body. So the user can select corresponding valve body structure according to the mounting means of external pipeline, so only through change valve body structure alright in order to realize the switching of mounting means, need not to change disk seat structure and case, reduce product development cost, realize the minimum change volume and change relief pressure valve erection joint mode to satisfy the different installation demand of user, improve the convenience that the valve body subassembly used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of one embodiment of the pressure relief valve assembly of the present invention;
FIG. 2 is a schematic structural view of an assembled first valve body of the pressure relief valve assembly of the present invention;
FIG. 3 is a schematic view of the assembled structure of FIG. 2;
FIG. 4 is a schematic cross-sectional view of FIG. 2;
FIG. 5 is a cross-sectional structural schematic view of a first valve body of the pressure relief valve assembly of the present invention;
FIG. 6 is a schematic structural view of an assembled second valve body of the pressure relief valve assembly of the present invention;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
FIG. 8 is a cross-sectional structural schematic view of a second valve body of the pressure relief valve assembly of the present invention;
fig. 9 is an exploded view of the valve seat structure of the pressure relief valve assembly of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | Pressure reducing |
217 | |
|
| 10 | |
218 | |
|
| 11 | |
219 | First mounting through |
|
| 111 | Regulating |
22 | |
|
| 12 | Adjusting |
221 | Liquid |
|
| 13 | |
222 | Liquid |
|
| 14 | Regulating |
223 | |
|
| 15 | |
2231 | Second |
|
| 20 | Valve |
2232 | Second |
|
| 21 | |
2233 | Second |
|
| 211 | Plug-in |
2234 | Second |
|
| 2111 | Connecting |
2235 | |
|
| 2112 | Plug-in |
2236 | Second mounting through |
|
| 212 | |
2237 | |
|
| 2121 | Limiting |
30 | Valve core | |
| 213 | A first |
40 | Valve |
|
| 214 | First |
50 | |
|
| 215 | First |
| Balancing chamber | |
| 216 | The first |
10b | Sealed cavity |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a pressure relief valve assembly 100.
Referring to fig. 1, 2 and 6, in the embodiment of the present invention, the pressure reducing valve assembly 100 includes a valve seat structure 10, a valve body structure 20 and a valve core 30, the valve seat structure 10 encloses to form a regulating cavity 111, and the valve seat structure 10 is provided with a regulating diaphragm 15 in the regulating cavity 111; the valve body structure 20 is a first valve body 21 or a second valve body 22, the first valve body 21 is provided with a plug-in pipe body 211 which is in plug-in communication with an external pipeline, the second valve body 22 is provided with a liquid inlet connecting pipe 221 and a liquid outlet connecting pipe 222 which are respectively connected with the external pipeline, and the first valve body 21 or the second valve body 22 is connected to the valve seat structure 10 and encloses to form a balance cavity 10a which is communicated with the regulating diaphragm 15; the valve core 30 is movably disposed in the balance cavity 10a and abuts against the adjusting diaphragm 15, and the adjusting diaphragm 15 floats relative to the valve core 30 to adjust the pressure in the first valve body 21 or the second valve body 22.
It should be noted that, when the first valve body 21 is connected to the valve seat structure 10 to enclose the balance chamber 10a, the valve core 30 is movably disposed at the first valve body 21, and when the second valve body 22 is connected to the valve seat structure 10 to enclose the balance chamber 10a, the valve core 30 is movably disposed at the second valve body 22. The adjusting diaphragm 15 is disposed in the adjusting chamber 111, and the adjusting diaphragm 15 is further communicated with the balance chamber 10a, so that a user can drive the adjusting diaphragm 15 to float through a structure in the adjusting chamber 111, so that the adjusting diaphragm 15 can be pressed and abutted against the valve core 30 in the balance chamber 10a to move, so that the valve core 30 moves in the first valve body 21 or the second valve body 22 to change the throttling area in the first valve body or the second valve body 22, change the flow rate and the kinetic energy of the fluid, cause different pressure losses, and achieve the purpose of reducing pressure.
The pressure reducing valve assembly 100 of the technical scheme of the utility model is applied to an infusion set, and the pressure reducing valve assembly 100 comprises a valve seat structure 10, a valve body structure 20 and a valve core 30, wherein the valve seat structure 10 encloses to form an adjusting cavity 111, and an adjusting diaphragm 15 is arranged in the adjusting cavity 111 of the valve seat structure 10. The valve structure 20 is a first valve body 21 or a second valve body 22, the first valve body 21 has a plug-in pipe body 211 connected with an external pipeline in a plug-in manner, the second valve body 22 has a liquid inlet connecting pipe 221 and a liquid outlet connecting pipe 222 respectively connected with the external pipeline, so that a user can select the first valve body 21 or the second valve body 22 according to the mode of the external pipeline, when the external pipeline adopts plug-in integration, the user can select the first valve body 21 to be connected with the valve seat structure 10, and when the external pipeline adopts a connecting pipe type connection, the user can select the second valve body 22 to be connected with the valve seat structure 10. The first valve body 21 or the second valve body 22 is connected to the valve seat structure 10 and encloses to form a balance cavity 10a communicated with the adjusting diaphragm 15, the valve core 30 is movably arranged in the balance cavity 10a and is abutted against the adjusting diaphragm 15, so that a user can drive the valve core 30 to move by floating the adjusting diaphragm 15 so as to adjust the pressure in the first valve body 21 or the second valve body 22. So the user can select corresponding valve body structure 20 according to the mounting means of external pipeline, so only through change valve body structure 20 alright realize the switching of mounting means, need not to change disk seat structure 10 and case 30, reduce product development cost, realize the minimum change volume and change relief pressure valve erection joint mode to satisfy the installation demand of user difference, improve the convenience that the valve body subassembly used.
Referring to fig. 1 to 5, in an embodiment of the present application, a first liquid inlet cavity 213 and a first liquid outlet cavity 214 are formed in the first valve body 21 and are communicated with each other, and the first valve body 21 is further provided with a first liquid inlet hole 215 communicated with the first liquid inlet cavity 213 and a first liquid outlet hole 216 communicated with the first liquid outlet cavity 214; when the first valve body 21 is connected to the valve seat structure 10, a first yielding port 217 communicating with the first liquid outlet chamber 214 is formed in a surface of the first valve body 21 facing the balance chamber 10a, the valve element 30 is movably embedded in the first liquid inlet chamber 213 and the first liquid outlet chamber 214 and partially passes through the first yielding port 217 to abut against the adjusting diaphragm 15, and the valve element 30 moves between the first liquid inlet chamber 213 and the first liquid outlet chamber 214 to adjust a passage area between the first liquid inlet chamber 213 and the first liquid outlet chamber 214.
It can be understood that the first liquid inlet chamber 213 and the first liquid outlet chamber 214 are vertically arranged, the first liquid outlet chamber 214 is disposed near the balance chamber 10a, and the valve core 30 includes an abutting section and a blocking section which are connected, the abutting section is located in the first liquid outlet chamber 214 and passes through the first position-giving port 217 to abut against the adjusting diaphragm 15, and the blocking section is located in the first liquid inlet chamber 213, and floats up and down under the action of the adjusting diaphragm 15 through the abutting section, so that the blocking section can open or block a passage between the first liquid inlet chamber 213 and the first liquid outlet chamber 214, thereby adjusting the passage area between the first liquid inlet chamber 213 and the first liquid outlet chamber 214, changing the flow rate of the first liquid inlet chamber 213 and the first liquid outlet chamber 214 and the kinetic energy of the fluid, causing different pressure losses, and achieving the purpose of pressure reduction. In addition, the number of the first liquid inlet holes 215 may be plural, so that the amount of liquid inlet may be further increased.
Further, the first valve body 21 further includes an insertion seat 212 connected to the insertion tube, and the insertion seat 212 is detachably connected to the valve seat structure 10 to clamp and fix the adjusting diaphragm 15. The socket 212 and the socket tube are integrated to ensure the overall structural strength of the first valve body 21. And this plug socket 212 can realize dismantling with valve seat structure 10 through the mode of screw connection and be connected, not only guarantees the stability that both are connected, simultaneously in order to the efficiency of earlier stage installation and later stage dismantlement, then this second valve body 22 that corresponds also can be fixed in valve seat structure 10 department through the mode of screw connection, so that first valve body 21 is the same with valve seat structure 10 connected mode and second valve body 22 and valve seat structure 10 connected mode, thereby so that first valve body 21 and second valve body 22 change. Of course, the socket 212 may be fixed to the valve seat structure 10 by other detachable means such as a snap connection. And a limiting groove 2121 is formed on one side of the plug seat 212 facing the valve seat structure 10, so that when the plug seat 212 is connected to the valve seat structure 10 to form the balance chamber 10a in an enclosed manner, the diaphragm 15 can be embedded in the limiting groove 2121 to ensure that the diaphragm 15 is stably located between the adjustment chamber 111 and the balance chamber 10 a.
Furthermore, the insertion tube body includes a connection section 2111 and an insertion section 2112 that are connected, one end of the insertion section 2112 that deviates from the connection section 2111 is connected to the insertion seat 212, the connection section 2111 is provided with the first liquid inlet hole 215, the insertion section 2112 is provided with the first liquid outlet hole 216, the insertion section 2112 is in a tapered arrangement, and the taper of the insertion section 2112 gradually decreases in a direction toward the connection section 2111.
It can be understood that the plug tube body is fixed in the connection structure of the external pipeline in a plug manner, so that the plug tube body comprises a connection section 2111 and a plug section 2112 which are connected, and the connection section 2111 and the plug section 2112 are of an integral structure, so as to ensure the overall structural strength of the plug tube body. After the inserting section 2112 is inserted and fixed, the first liquid inlet hole 215 of the connecting section 2111 is communicated with the liquid inlet direction of the external pipeline, the first liquid outlet hole 216 of the inserting section 2112 is communicated with the liquid outlet direction of the external pipeline, and the valve core 30 is arranged between the connecting section 2111 and the inserting section 2112. And grafting section 2112 is the tapering setting to make the grafting process of grafting body more convenient, improve the efficiency of installation, guarantee the leakproofness between grafting section 2112 connection back and the outside pipeline simultaneously. In order to further ensure the sealing performance between the plugging section 2112 and the external pipeline, two sealing washers may be additionally disposed to be sleeved at one end of the plugging section 2112 connected to the connection section 2111 and one end connected to the socket 212, respectively, so as to improve the sealing performance after plugging.
In an embodiment of the present application, referring to fig. 5, a first installation through hole 219 communicating with the first fluid inlet chamber 213 is formed in a surface of the first valve body 21 facing away from the valve seat structure 10, and the valve element 30 can be inserted into the first fluid inlet chamber 213 and the first fluid outlet chamber 214 through the first installation through hole 219; the pressure reducing valve assembly 100 further comprises a valve cover 40 and a return spring 50, the valve cover 40 is detachably connected to the first valve body 21 and covers the first mounting through hole 219, one end of the return spring 50 is abutted to the valve cover 40, and the other end of the return spring is abutted to one end, away from the adjusting diaphragm 15, of the valve core 30.
The first installation through hole 219 is formed so that the valve element 30 can be inserted into the first valve body 21 through the first installation through hole 219, and the valve element 30 is elastically abutted and fixed by one end of the return spring 50, so that the initial position of the valve element 30 can close and close the passage between the first liquid inlet chamber 213 and the first liquid outlet chamber 214, and the valve cover 40 can be fixed at the first valve body 21 by means of screw connection or clamping connection and the like and abutted against the other end of the return spring 50. So when the user controls the adjusting diaphragm 15 to float to abut against the valve core 30, the valve core 30 moves and presses the reset spring 50, then the passage between the first liquid inlet cavity 213 and the first liquid outlet cavity 214 is opened, the fluctuation of the pressure after the valve is balanced with the spring force of the reset spring 50 by controlling the adjusting diaphragm 15, the pressure after the valve is kept constant within a certain error range, so as to ensure the normal circulation of the passage, and when the user does not need to use the pressure reducing valve, the adjusting diaphragm 15 is controlled again to recover, so that the valve core 30 is pushed to return to the initial position by the elastic force generated by the recovering state of the reset spring 50. Similarly, the surface of the second valve body 22 facing away from the valve seat structure 10 is opened with a second installation through hole 2236 communicating with the second fluid inlet chamber 2231, so as to facilitate the installation of the same valve core 30, and the valve cover 40 can also be connected to the second valve body 22 to cover the second installation through hole 2236, so as to achieve the same pressure reduction effect in the second valve body 22. In addition, this valve gap 40 is connected with case 30 and can encloses and close and form sealed chamber 10b, can set up the passageway that communicates first play liquid chamber 214 and sealed chamber 10b in the case 30, and when the relief pressure valve need be closed, the pressure of first play liquid hole 216 can act on in sealed chamber 10b in order to push away case 30 and go upward through the negative feedback of passageway, and then improves the relief pressure valve and closes efficiency.
Optionally, a first backflow hole 218 communicating with the first liquid outlet hole 216 is further opened on the surface of the first valve body 21 facing the balance cavity 10 a. When the pressure reducing valve needs to be closed, the pressure of the first liquid outlet hole 216 may act on the balance cavity 10a through the first return hole 218 to push the diaphragm 15 to return to the initial position, so as to improve the efficiency of the diaphragm 15 returning to the original position, so that the valve element 30 may return to the initial position more quickly, thereby improving the closing efficiency of the pressure reducing valve. Similarly, the second valve body 22 may also be provided with a second backflow hole 2237 to communicate the balance cavity 10a with the second liquid outlet hole 2234, so that when the pressure reducing valve needs to be closed, the valve core 30 may return to the initial position more quickly, so as to facilitate the use of the user.
In an embodiment of the present application, referring to fig. 6 to 8, the second valve body 22 further includes a valve main body 223, a second liquid inlet cavity 2231 and a second liquid outlet cavity 2232 are formed in the valve main body 223, the valve main body 223 further has a second liquid inlet hole 2233 communicating with the second liquid inlet cavity 2231 and a second liquid outlet hole 2234 communicating with the second liquid outlet cavity 2232, the liquid inlet connecting pipe 221 is connected to the valve main body 223 and communicates with the second liquid inlet hole 2233, the liquid outlet connecting pipe 222 is connected to the valve main body 223 and communicates with the second liquid outlet hole 2234, the valve main body 223 is detachably connected to the valve seat structure 10, a second abdicating hole 2235 communicating with the second liquid outlet cavity 2232 is formed on a surface of the valve main body 223 facing the balance cavity 10a, the valve core 30 is movably inserted in the second liquid inlet cavity 2231 and the second liquid outlet cavity 2232 and partially passes through the second abdicating hole 2235 to abut against the adjusting diaphragm 15, the spool 30 moves between the second inlet chamber 2231 and the second outlet chamber 2232 to adjust a passage area between the second inlet chamber 2231 and the second outlet chamber 2232.
The liquid inlet connection pipe 221 and the liquid outlet connection pipe 222 may be fixed to the valve main body 223 by means of insertion or clamping, and are respectively communicated with the second liquid inlet hole 2233 and the second liquid outlet hole 2234, and the valve main body 223 may be fixed to the valve seat structure 10 by means of screw connection. The second inlet chamber 2231 and the second outlet chamber 2232 may be disposed in a vertical arrangement to make the interior design of the valve body 223 more compact. The second liquid outlet cavity 2232 is disposed close to the balance cavity 10a, and the valve core 30 includes an abutting section and a blocking section, which are connected to each other, the abutting section is located in the second liquid outlet cavity 2232 and passes through the second abdicating hole 2235 to abut against the adjusting diaphragm 15, and the blocking section is located in the second liquid inlet cavity 2231, and floats up and down under the action of the adjusting diaphragm 15 through the abutting section, so that the blocking section can open or block a passage between the second liquid inlet cavity 2231 and the second liquid outlet cavity 2232, thereby adjusting a passage area between the second liquid inlet cavity 2231 and the second liquid outlet cavity 2232, changing flow rates of the second liquid inlet cavity 2231 and the second liquid outlet cavity 2232 and kinetic energy of fluid, causing different pressure losses, and achieving the purpose of pressure reduction.
Further, the second liquid inlet hole 2233 and the second liquid outlet hole 2234 are respectively disposed on two opposite sides of the valve body 223 and are disposed in a staggered manner. Wherein, this second feed liquor hole 2233 and second play liquid hole 2234 are seted up respectively in the relative both sides and the dislocation set of valve main part 223 to in the position interval certain distance after 221 and the play liquid takeover 222 installation of feed liquor takeover, so that both can be independent be connected with outside pipeline, the operation of being convenient for, improve the efficiency of connecting.
In an embodiment of the present application, referring to fig. 1 and 9 in combination, the valve seat structure 10 includes a base 11, an adjusting spring 12, a movable block 13, and an adjusting block 14, where the base 11 may be detachably connected to the first valve body 21 or the second valve body 22, the base 11 encloses the adjusting cavity 111 and is provided with openings communicating with two opposite ends of the adjusting cavity 111, and the diaphragm 15 covers one of the openings; the adjusting spring 12 is arranged in the adjusting cavity 111, and one end of the adjusting spring 12 is abutted against one side of the diaphragm 15 departing from the valve core 30; the movable block 13 is movably arranged in the adjusting cavity 111 and is connected with one end of the adjusting spring 12 departing from the diaphragm 15; the adjusting block 14 is movably connected with the base 11 and covers the other opening, and the adjusting block 14 is connected with the movable block 13 to drive the movable block 13 to move in the direction close to the membrane 15 so as to push the adjusting spring 12 to abut against the membrane 15 and float towards the balance cavity 10 a. The adjusting block 14 can be connected with the base 11 through threads, and the movable block 13 is connected with the adjusting block 14, when the pressure reducing valve needs to be opened, the adjusting block 14 is rotated to move towards the direction extending into the adjusting cavity 111, and the movable block 13 is synchronously driven to move towards the direction of the diaphragm 15, so that the movable block 13 presses the adjusting spring 12 to push the diaphragm 15, the diaphragm 15 is deformed to press the valve core 30 positioned in the balance cavity 10a, the valve core 30 moves in the first valve body 21 or the second valve body 22 to change the throttling area in the valve body or the second valve body 22, the flow rate and the kinetic energy of fluid are changed, different pressure losses are caused, and the purpose of pressure reduction is achieved. When the pressure reducing valve needs to be closed, the adjusting block 14 can be driven to rotate in the opposite direction so as to move in the direction away from the adjusting cavity 111, the movable block 13 is driven to move in the direction away from the diaphragm 15 synchronously, the movable block 13 stops pressing the adjusting spring 12, the adjusting spring 12 is enabled to restore to the original position in the elastic force, the diaphragm 15 stops abutting against the diaphragm 15, the diaphragm 15 stops deforming and restores to the original position, and the valve core 30 can return to the initial position under the pressure in the liquid outlet direction so as to close the pressure reducing valve.
The present invention further provides an infusion device, which includes a pressure reducing valve assembly 100, and the specific structure of the pressure reducing valve assembly 100 refers to the above embodiments, and since the infusion device adopts all technical solutions of all the above embodiments, the infusion device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and no further description is given here.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A pressure relief valve assembly for use with an infusion set, the pressure relief valve assembly comprising:
the valve seat structure is enclosed to form an adjusting cavity, and an adjusting diaphragm is arranged in the adjusting cavity of the valve seat structure;
the valve body structure is a first valve body or a second valve body, the first valve body is provided with a plug-in pipe body which is in plug-in communication with an external pipeline, the second valve body is provided with a liquid inlet connecting pipe and a liquid outlet connecting pipe which are respectively connected with the external pipeline, and the first valve body or the second valve body is connected with the valve seat structure and encloses to form a balance cavity which is communicated with the adjusting membrane; and
the valve core is movably arranged in the balance cavity and is abutted against the adjusting diaphragm, and the adjusting diaphragm floats relative to the valve core to adjust the pressure in the first valve body or the second valve body.
2. The pressure reducing valve assembly as claimed in claim 1, wherein a first liquid inlet chamber and a first liquid outlet chamber are formed in the first valve body and communicated with each other, and the first valve body is further provided with a first liquid inlet hole communicated with the first liquid inlet chamber and a first liquid outlet hole communicated with the first liquid outlet chamber;
when the first valve body is connected to the valve seat structure, a first yielding position port communicated with the first liquid outlet cavity is formed in the surface, facing the balance cavity, of the first valve body, the valve core is movably embedded in the first liquid inlet cavity and the first liquid outlet cavity and partially penetrates through the first yielding position port to be abutted against the adjusting membrane, and the valve core moves between the first liquid inlet cavity and the first liquid outlet cavity to adjust the passage area between the first liquid inlet cavity and the first liquid outlet cavity.
3. The pressure reducing valve assembly as claimed in claim 2, wherein the first valve body further includes a socket connected to the socket body, the socket being detachably connected to the valve seat structure to clamp and fix the regulating diaphragm.
4. The pressure relief valve assembly as claimed in claim 3, wherein said plug tube includes a connection section and a plug section, wherein an end of said plug section opposite to said connection section is connected to said plug seat, said connection section defines said first liquid inlet hole, said plug section defines said first liquid outlet hole, said plug section is tapered, and a taper of said plug section decreases in a direction toward said connection section.
5. The pressure reducing valve assembly as claimed in claim 2, wherein a first mounting through hole communicating with the first liquid inlet chamber is formed in a surface of the first valve body facing away from the valve seat structure, and the valve core can be inserted into the first liquid inlet chamber and the first liquid outlet chamber through the first mounting through hole;
the pressure reducing valve assembly further comprises a valve cover and a reset spring, the valve cover is detachably connected to the first valve body and covers the first mounting through hole, one end of the reset spring is abutted to the valve cover, and the other end of the reset spring is abutted to one end, deviating from the adjusting diaphragm, of the valve core.
6. The pressure relief valve assembly as recited in claim 5 wherein a surface of the first valve body facing the balancing chamber is further defined by a first return orifice in communication with the first exit orifice.
7. The pressure reducing valve assembly as claimed in claim 1, wherein the second valve body further comprises a valve body, a second liquid inlet cavity and a second liquid outlet cavity are formed in the valve body and communicated with each other, the valve body is further provided with a second liquid inlet hole communicated with the second liquid inlet cavity and a second liquid outlet hole communicated with the second liquid outlet cavity, the liquid inlet connecting pipe is connected with the valve body and communicated with the second liquid inlet hole, the liquid outlet connecting pipe is connected with the valve body and communicated with the second liquid outlet hole,
the valve main body is detachably connected with the valve seat structure, a second yielding position port communicated with the second liquid outlet cavity is formed in the surface, facing the balance cavity, of the valve main body, the valve core is movably embedded in the second liquid inlet cavity and the second liquid outlet cavity and partially penetrates through the second yielding position port to be abutted against the adjusting diaphragm, and the valve core moves between the second liquid inlet cavity and the second liquid outlet cavity to adjust the passage area between the second liquid inlet cavity and the second liquid outlet cavity.
8. The pressure relief valve assembly as recited in claim 7 wherein the second inlet opening and the second outlet opening are disposed on opposite sides of the valve body and are offset from each other.
9. The pressure relief valve assembly as recited in any of claims 1-8, wherein said valve seat structure:
the base can be detachably connected with the first valve body or the second valve body, the base encloses to form the adjusting cavity and is provided with openings communicated with two opposite ends of the adjusting cavity, and the diaphragm is covered on one opening;
the adjusting spring is arranged in the adjusting cavity, and one end of the adjusting spring is abutted against one side, away from the valve core, of the diaphragm;
the movable block is movably arranged in the adjusting cavity and is connected with one end of the adjusting spring, which deviates from the diaphragm; and
the regulating block, the regulating block with base swing joint covers another the opening, just the regulating block with the movable block is connected, in order to drive the movable block can be close to the direction of diaphragm removes, in order to promote the regulating spring butt the diaphragm orientation the balanced intracavity floats.
10. An infusion device comprising a pressure relief valve assembly as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122748300.6U CN216519817U (en) | 2021-11-10 | 2021-11-10 | Pressure reducing valve assembly and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122748300.6U CN216519817U (en) | 2021-11-10 | 2021-11-10 | Pressure reducing valve assembly and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519817U true CN216519817U (en) | 2022-05-13 |
Family
ID=81528569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122748300.6U Active CN216519817U (en) | 2021-11-10 | 2021-11-10 | Pressure reducing valve assembly and infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519817U (en) |
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2021
- 2021-11-10 CN CN202122748300.6U patent/CN216519817U/en active Active
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Address after: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: AMBULANC (SHENZHEN) TECH. Co.,Ltd. |
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Address after: 518000, Building 1, 101, Evergrande Fashion Huigu Building, Fulong Road, Shanghenglang Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Country or region after: China Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Security Medical Technology Co.,Ltd. Country or region before: China |
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