CN112033620A - Multi-station valve pressure test table - Google Patents
Multi-station valve pressure test table Download PDFInfo
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- CN112033620A CN112033620A CN202011111401.6A CN202011111401A CN112033620A CN 112033620 A CN112033620 A CN 112033620A CN 202011111401 A CN202011111401 A CN 202011111401A CN 112033620 A CN112033620 A CN 112033620A
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- pipe body
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- lower clamping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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Abstract
The invention discloses a multi-station valve pressure test table which comprises a workbench, a lower clamping seat, an upper clamping seat, a top plate, a first pipe body and a second pipe body, wherein the bottom end of the lower clamping seat is fixedly connected with the top end of the workbench, the side surface of the front side of the workbench is respectively provided with a low-pressure air inlet valve, a pressure relief valve and a high-pressure air inlet valve, the first pipe body and the second pipe body are arranged in the workbench, the low-pressure air inlet valve and the pressure relief valve are communicated with the first pipe body, and the first pipe body and the second pipe body are communicated with each other; inside the first body, first body with all be equipped with the stop valve between the two bodies, just first body with press from both sides tight seat intercommunication down. When taking off the valve from pressing from both sides between tight seat and the last tight seat of clamp down, the guide bar can drive first movable block and second movable block and resume to the normal position under the effect of spring this moment, until with the sprue inside the connecting hole, connecting hole and through-hole can be sealed this moment, have strengthened protective capacities.
Description
Technical Field
The invention relates to a valve pressure test table, in particular to a multi-station valve pressure test table.
Background
The valve is a pressure pipeline element, it is a device used for changing pipeline section and medium flow direction, controlling pressure, flow rate and temperature of conveying medium, and has the functions of diversion, cut-off, regulation, diversion or overflow pressure relief, etc., and can be extensively used in various main fields of national economy, and the quality of valve can directly affect the quality of pressure pipeline engineering, so that it has need of strict control on valve quality.
The sealing test of the valve is one of the most important and basic items for checking the reliability of the valve, and is a test for checking the sealing performance of a starting and closing part and a valve sealing pair, and a pressure sealing test is required to be carried out before each valve leaves a factory so as to ensure that the valve has enough strength and reliable performance.
Due to the difference between the nominal diameter and the nominal pressure of the valve and the different sizes of the flanges matched with the valve, at present, the valve pressure sealing test bed on the market detects the valve one by using general detection equipment, so that the working procedure is complex, the operation is inconvenient, and the detection efficiency is low. Therefore, a multi-station valve pressure test table is provided for solving the problems.
Disclosure of Invention
A multi-station valve pressure test table comprises a workbench, a lower clamping seat, an upper clamping seat, a top plate, a first pipe body and a second pipe body;
the top end of the workbench is provided with a lower clamping seat, the bottom end of the lower clamping seat is fixedly connected with the top end of the workbench, the side surface of the front side of the workbench is respectively provided with a low-pressure air inlet valve, a pressure release valve and a high-pressure air inlet valve, the first pipe body and the second pipe body are arranged inside the workbench, the low-pressure air inlet valve and the pressure release valve are both communicated with the first pipe body, the high-pressure air inlet valve is communicated with the second pipe body, and the first pipe body and the second pipe body are communicated with each other; stop valves are arranged inside the first pipe body and between the first pipe body and the two pipe bodies, and the first pipe body is communicated with the lower clamping seat;
a first movable block is arranged in the lower clamping seat, a sealing gasket is sleeved at the top end of the first movable block, a fixed block is arranged at the bottom end of the first movable block, the fixed block is fixedly connected with the inner side wall of the lower clamping seat, and connecting holes are formed in the top ends of the first movable block and the fixed block; the top end of the fixed block is provided with a guide hole, the bottom end of the first movable block is fixedly connected with a guide rod, the bottom end of the guide rod penetrates through the guide hole, the bottom end of the fixed block is provided with a second movable block, and the bottom end of the guide rod is fixedly connected with the top end of the second movable block; a blocking block is fixedly connected to the top end of the second movable block, through holes are formed in two sides of the blocking block, and the through holes are formed in the top end of the second movable block; a movable cavity is formed in the lower clamping seat, the bottom end of the piston rod is sleeved in the movable cavity, the top end of the piston rod is fixedly connected with the bottom end of the second movable block, and a spring is arranged at the bottom end of the piston rod;
the top end of the top plate is fixedly connected with an air cylinder, the tail end of an output shaft of the air cylinder is fixedly connected with the top end of the upper clamping seat, a guide rail is arranged on the rear side of the upper clamping seat, the top end of the guide rail is fixedly connected with the bottom end of the top plate, a guide groove is formed in the front side face of the guide rail, a guide block is fixedly connected to the rear side face of the upper clamping seat, and the guide block is clamped inside the guide groove.
Furthermore, a support column is arranged between the workbench and the top plate, the top end of the support column is fixedly connected with the bottom end of the top plate, and the bottom end of the support column is fixedly connected with the top end of the workbench.
Furthermore, the side face of the front side of the top plate is provided with a pressure gauge, the pressure gauge is as same as the number of the upper clamping seats, a connecting pipe is arranged between the pressure gauge and the upper clamping seats, and the pressure gauge is communicated with the upper clamping seats through the connecting pipe.
Furthermore, the number of the lower clamping seats is the same as that of the upper clamping seats, and the inner cavities of the lower clamping seats and the upper clamping seats are both boss-shaped structures.
Further, press from both sides the seat down with the inside of last clamp seat all is equipped with sealed the pad, and two sealed pad with press from both sides the seat down, go up and press from both sides the seat block connection.
Further, the guide block is of an I-shaped structure, the guide groove is of a concave structure, and the guide block and the guide groove are in sliding connection.
Further, the stop valves are located between two adjacent lower clamping seats, and the stop valves are distributed on the surface of the first pipe body at equal intervals.
Further, the blocking block is matched with the connecting hole in size, the through holes are of fan-shaped structures, and the through holes are symmetrically distributed at the top end of the second movable block.
Furthermore, the first movable block and the second movable block are connected with the fixed block in a sliding mode, and the guide rods are symmetrically distributed between the first movable block and the second movable block.
Furthermore, one side of the lower clamping seat is provided with a water storage cylinder, the bottom end of the water storage cylinder is fixedly connected with the bottom end of the workbench, and the water storage cylinder is communicated with the lower clamping seat. .
The invention has the beneficial effects that: the invention provides a multi-station valve pressure test table which is high in universality and has protection capability.
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, and 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 these drawings without inventive exercise.
FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an internal structure of a workbench according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a lower clamping seat according to an embodiment of the present invention;
FIG. 4 is a view of the connection of the guide bar to the second movable block according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an upper clamping seat according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating the connection between the upper clamping base and the sliding rail according to an embodiment of the present invention.
In the figure: 1. the working table comprises a working table, 2, a low-pressure air inlet valve, 3, a pressure relief valve, 4, a high-pressure air inlet valve, 5, a lower clamping seat, 51, a movable cavity, 6, an upper clamping seat, 61, a guide block, 7, a top plate, 8, a cylinder, 9, a pressure gauge, 10, a support column, 11, a connecting pipe, 12, a guide rail, 121, a guide groove, 13, a stop valve, 14, a first pipe body, 15, a second pipe body, 16, a first movable block, 161, a connecting hole, 17, a sealing gasket, 18, a fixed block, 181, a guide hole, 19, a guide rod, 20, a second movable block, 201, a through hole, 202, a blocking block, 21, a piston rod, 22, a spring, 23 and a water.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-6, a multi-station valve pressure testing table includes a working table 1, a lower clamping seat 5, an upper clamping seat 6, a top plate 7, a first pipe 14 and a second pipe 15;
the top end of the workbench 1 is provided with a lower clamping seat 5, the bottom end of the lower clamping seat 5 is fixedly connected with the top end of the workbench 1, the side surface of the front side of the workbench 1 is respectively provided with a low-pressure air inlet valve 2, a pressure release valve 3 and a high-pressure air inlet valve 4, the first pipe body 14 and the second pipe body 15 are arranged inside the workbench 1, the low-pressure air inlet valve 2 and the pressure release valve 3 are both communicated with the first pipe body 14, the high-pressure air inlet valve 4 is communicated with the second pipe body 15, and the first pipe body 14 is communicated with the second pipe body 15; stop valves 13 are arranged inside the first pipe body 14 and between the first pipe body 14 and the two pipe bodies, and the first pipe body 14 is communicated with the lower clamping seat 5;
a first movable block 16 is arranged inside the lower clamping seat 5, a sealing gasket 17 is sleeved at the top end of the first movable block 16, a fixed block 18 is arranged at the bottom end of the first movable block 16, the fixed block 18 is fixedly connected with the inner side wall of the lower clamping seat 5, and connecting holes 161 are formed at the top ends of the first movable block 16 and the fixed block 18; a guide hole 181 is formed in the top end of the fixed block 18, a guide rod 19 is fixedly connected to the bottom end of the first movable block 16, the bottom end of the guide rod 19 penetrates through the guide hole 181, a second movable block 20 is arranged at the bottom end of the fixed block 18, and the bottom end of the guide rod 19 is fixedly connected to the top end of the second movable block 20; a block 202 is fixedly connected to the top end of the second movable block 20, through holes 201 are formed in two sides of the block 202, and the through holes 201 are formed in the top end of the second movable block 20; a movable cavity 51 is formed in the lower clamping seat 5, the bottom end of the piston rod 21 is sleeved in the movable cavity 51, the top end of the piston rod 21 is fixedly connected with the bottom end of the second movable block 20, and a spring 22 is arranged at the bottom end of the piston rod 21;
the top end of the top plate 7 is fixedly connected with a cylinder 8, the tail end of an output shaft of the cylinder 8 is fixedly connected with the top end of the upper clamping seat 6, a guide rail 12 is arranged on the rear side of the upper clamping seat 6, the top end of the guide rail 12 is fixedly connected with the bottom end of the top plate 7, a guide groove 121 is formed in the front side face of the guide rail 12, a guide block 61 is fixedly connected to the side face of the rear side of the upper clamping seat 6, and the guide block 61 is clamped inside the guide groove 121.
A support column 10 is arranged between the workbench 1 and the top plate 7, the top end of the support column 10 is fixedly connected with the bottom end of the top plate 7, and the bottom end of the support column 10 is fixedly connected with the top end of the workbench 1, so that the top structure of the workbench is supported; the side surface of the front side of the top plate 7 is provided with a pressure gauge 9, the number of the pressure gauges 9 is the same as that of the upper clamping seats 6, a connecting pipe 11 is arranged between the pressure gauge 9 and the upper clamping seat 6, the pressure gauge 9 is communicated with the upper clamping seat 6 through the connecting pipe 11, and the pressure inside the valve can be detected through the pressure gauge 9; the number of the lower clamping seats 5 is the same as that of the upper clamping seats 6, the inner cavities of the lower clamping seats 5 and the upper clamping seats 6 are both boss-shaped structures, and a valve can be fixed through the matching between the lower clamping seats 5 and the upper clamping seats 6; the sealing gaskets 17 are arranged inside the lower clamping seat 5 and the upper clamping seat 6, and the two sealing gaskets 17 are clamped and connected with the lower clamping seat 5 and the upper clamping seat 6, so that the sealing property is enhanced; the guide block 61 is of an I-shaped structure, the guide groove 121 is of a concave structure, and the guide block and the guide groove are in sliding connection, so that the stability of the guide block and the guide groove during sliding is enhanced; the stop valves 13 are positioned between two adjacent lower clamping seats 5, and the stop valves 13 are distributed on the surface of the first pipe body 14 at equal intervals, so that the synchronous operation of the low-pressure air inlet valve 2 and the high-pressure air inlet valve 4 can be controlled through the stop valves 13; the blocking block 202 is matched with the connecting hole 161 in size, the through holes 201 are of a fan-shaped structure, the two through holes 201 are symmetrically distributed at the top end of the second movable block 20, and the lower clamping seat 5 can be communicated with the upper clamping seat 6 through the through holes 201; the first movable block 16 and the second movable block 20 are both connected with the fixed block 18 in a sliding manner, the guide rods 19 are symmetrically distributed between the first movable block 16 and the second movable block 20, and the guide rods 19 can play a role in guiding; one side of lower clamp holder 5 is equipped with water storage cylinder 23, water storage cylinder 23 bottom with 1 bottom rigid coupling of workstation, just water storage cylinder 23 with clamp holder 5 intercommunication down is convenient for carry out the seal test to the water valve.
When the valve clamping device is used, a valve is firstly placed between the lower clamping seat 5 and the upper clamping seat 6, at the moment, the air cylinder 8 works, the air cylinder 8 can drive the upper clamping seat 6 to move towards the bottom end through the guide groove 121 on the side surface of the guide rail 12, which is erected by the guide block 61, until the valve is clamped and fixed between the lower clamping seat 5 and the upper clamping seat 6; meanwhile, when the lower clamping seat 5 and the upper clamping seat 6 are clamped, the first movable block 16 and the second movable block 20 move towards the bottom end along the guide hole 181, the spring 22 can be compressed under the action of the piston rod 21, the blocking block 202 can be separated from the connecting hole 161 at the moment, and the lower clamping seat 5 can be communicated with the bottom structure of the lower clamping seat under the action of the connecting hole 161 and the through hole 201;
then, opening a water feeding valve to fill the water storage cylinder 23 with water, closing an upper air outlet after air in the water storage cylinder 23 is exhausted, raising the pressure to the required pressure through a pressurizing pump, observing the pressure value through a pressure gauge 9, and inspecting the valve according to the inspection standard specification; after the pressure test of the valve is finished, stopping the pressurizing pump, opening the drain valve to release pressure and drain water until the sealing test of the valve is finished; the low-pressure air inlet valve 2 and the high-pressure air inlet valve 4 are designed according to the parallel principle, low-pressure or high-pressure tests can be simultaneously carried out on different valves by controlling the opening and closing of the stop valve 13, and the universality is high.
The invention has the advantages that:
1. when the valve is taken down from between the lower clamping seat and the upper clamping seat, the guide rod drives the first movable block and the second movable block to return to the original positions under the action of the spring until the blocking block is positioned in the connecting hole, and the connecting hole and the through hole are sealed, so that the protection capability is enhanced, and external objects are prevented from entering;
2. according to the invention, the water feeding valve is opened to fill the water storage cylinder with water, the upper air outlet is closed after the air in the water storage cylinder is exhausted, the pressure can be increased to the required pressure through the low-pressure air inlet valve or the high-pressure air inlet valve by using the pressurizing pump, the pressure value is observed through the pressure gauge, and the valve is inspected according to the inspection standard specification;
3. the low-pressure air inlet valve and the high-pressure air inlet valve are designed according to the parallel principle, so that the low-pressure air inlet valve and the high-pressure air inlet valve are connected with the plurality of lower clamping seats together, low-pressure or high-pressure tests can be simultaneously carried out on different valves by controlling the opening and closing of the stop valve, the universality is high, the pressure tests can be carried out on the valves with various specifications at one time, the working procedures are reduced, and the detection efficiency is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Multistation valve pressure testing platform, its characterized in that: comprises a workbench (1), a lower clamping seat (5), an upper clamping seat (6), a top plate (7), a first pipe body (14) and a second pipe body (15);
the top end of the workbench (1) is provided with a lower clamping seat (5), the bottom end of the lower clamping seat (5) is fixedly connected with the top end of the workbench (1), the side face of the front side of the workbench (1) is respectively provided with a low-pressure air inlet valve (2), a pressure relief valve (3) and a high-pressure air inlet valve (4), the first pipe body (14) and the second pipe body (15) are arranged inside the workbench (1), the low-pressure air inlet valve (2) and the pressure relief valve (3) are communicated with the first pipe body (14), the high-pressure air inlet valve (4) is communicated with the second pipe body (15), and the first pipe body (14) and the second pipe body (15) are communicated with each other; stop valves (13) are arranged inside the first pipe body (14) and between the first pipe body (14) and the second pipe body, and the first pipe body (14) is communicated with the lower clamping seat (5);
a first movable block (16) is arranged inside the lower clamping seat (5), a sealing gasket (17) is sleeved at the top end of the first movable block (16), a fixed block (18) is arranged at the bottom end of the first movable block (16), the fixed block (18) is fixedly connected with the inner side wall of the lower clamping seat (5), and connecting holes (161) are formed in the top ends of the first movable block (16) and the fixed block (18); a guide hole (181) is formed in the top end of the fixed block (18), a guide rod (19) is fixedly connected to the bottom end of the first movable block (16), the bottom end of the guide rod (19) penetrates through the guide hole (181), a second movable block (20) is arranged at the bottom end of the fixed block (18), and the bottom end of the guide rod (19) is fixedly connected with the top end of the second movable block (20); a blocking block (202) is fixedly connected to the top end of the second movable block (20), through holes (201) are formed in two sides of the blocking block (202), and the through holes (201) are formed in the top end of the second movable block (20); a movable cavity (51) is formed in the lower clamping seat (5), the bottom end of the piston rod (21) is sleeved in the movable cavity (51), the top end of the piston rod (21) is fixedly connected with the bottom end of the second movable block (20), and a spring (22) is arranged at the bottom end of the piston rod (21);
roof (7) top rigid coupling has cylinder (8), the output shaft of cylinder (8) terminal with go up and press from both sides tight seat (6) top rigid coupling, it is equipped with guide rail (12) to go up to press from both sides tight seat (6) rear side, guide rail (12) top with roof (7) bottom rigid coupling, guide rail (12) leading flank is opened there is guide way (121), it has guide block (61) to go up to press from both sides tight seat (6) rear side rigid coupling, just guide block (61) block in inside guide way (121).
2. The multi-station valve pressure test table according to claim 1, characterized in that: workstation (1) with be equipped with support column (10) between roof (7), support column (10) top with roof (7) bottom rigid coupling, just support column (10) bottom with workstation (1) top rigid coupling.
3. The multi-station valve pressure test table according to claim 1, characterized in that: the top plate (7) front side is equipped with manometer (9) to the side, manometer (9) with the figure of going up tight seat (6) of clamp is the same, manometer (9) with it is equipped with connecting pipe (11) to go up between pressing from both sides tight seat (6), just connecting pipe (11) will manometer (9) with go up and press from both sides tight seat (6) intercommunication.
4. The multi-station valve pressure test table according to claim 3, characterized in that: the number of the lower clamping seats (5) is the same as that of the upper clamping seats (6), and the inner cavities of the lower clamping seats (5) and the upper clamping seats (6) are both boss-shaped structures.
5. The multi-station valve pressure test table according to claim 1, characterized in that: press from both sides tight seat (5) down with the inside of last tight seat (6) of clamp all is equipped with sealed pad (17), and two sealed pad (17) with press from both sides tight seat (5) down, go up and press from both sides tight seat (6) block connection.
6. The multi-station valve pressure test table according to claim 1, characterized in that: the guide block (61) is of an I-shaped structure, the guide groove (121) is of a concave structure, and the guide block and the guide groove are in sliding connection.
7. The multi-station valve pressure test table according to claim 1, characterized in that: the stop valves (13) are positioned between two adjacent lower clamping seats (5), and the stop valves (13) are distributed on the surface of the first pipe body (14) at equal intervals.
8. The multi-station valve pressure test table according to claim 1, characterized in that: the blocking block (202) is matched with the connecting hole (161) in size, the through holes (201) are of fan-shaped structures, and the through holes (201) are symmetrically distributed at the top end of the second movable block (20).
9. The multi-station valve pressure test table according to claim 1, characterized in that: the first movable block (16) and the second movable block (20) are in sliding connection with the fixed block (18), and the guide rods (19) are symmetrically distributed between the first movable block (16) and the second movable block (20).
10. The multi-station valve pressure test table according to claim 1, characterized in that: one side of the lower clamping seat (5) is provided with a water storage cylinder (23), the bottom end of the water storage cylinder (23) is fixedly connected with the bottom end of the workbench (1), and the water storage cylinder (23) is communicated with the lower clamping seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111401.6A CN112033620A (en) | 2020-10-16 | 2020-10-16 | Multi-station valve pressure test table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111401.6A CN112033620A (en) | 2020-10-16 | 2020-10-16 | Multi-station valve pressure test table |
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| CN112033620A true CN112033620A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011111401.6A Pending CN112033620A (en) | 2020-10-16 | 2020-10-16 | Multi-station valve pressure test table |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307847A (en) * | 2022-08-19 | 2022-11-08 | 武汉柯瑞迪医疗用品有限公司 | Micro-pressure detection machine for leakage of hemodialysis dry powder cylinder |
-
2020
- 2020-10-16 CN CN202011111401.6A patent/CN112033620A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307847A (en) * | 2022-08-19 | 2022-11-08 | 武汉柯瑞迪医疗用品有限公司 | Micro-pressure detection machine for leakage of hemodialysis dry powder cylinder |
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