CN212180506U - Bag fatigue test device - Google Patents
Bag fatigue test device Download PDFInfo
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- CN212180506U CN212180506U CN202020599891.8U CN202020599891U CN212180506U CN 212180506 U CN212180506 U CN 212180506U CN 202020599891 U CN202020599891 U CN 202020599891U CN 212180506 U CN212180506 U CN 212180506U
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Abstract
The utility model discloses a bag fatigue test device, which comprises a connecting pipe, an air pump, an inflation pipe, a liquid tank, a liquid pump, a liquid filling pipe, a pressure relief pipe, a pressure controller, an electronic counter, a control circuit and a power switch, wherein the air pump is communicated with the connecting pipe through the inflation pipe, and the inflation pipe is provided with a solenoid valve A; the liquid tank, the liquid pump and the liquid charging pipe are sequentially connected, the liquid charging pipe is communicated with the connecting pipe, the pressure relief pipe is respectively communicated with the connecting pipe and the liquid tank, the electromagnetic valve B is installed on the liquid charging pipe, and the electromagnetic valve C is installed on the pressure relief pipe; an exhaust valve is arranged on the connecting pipe; the connecting pipe is communicated with a pressure sampling pipe of the pressure controller. The utility model discloses compatible liquid filling and the bag fatigue test of aerifing type limbs pressurization treatment facility can effectively simulate the physical environment when the bag uses, guarantee that fatigue performance test's result is true, accurate, guarantee patient safety in utilization.
Description
Technical Field
The utility model belongs to the technical field of product testing, a bag fatigue test device is related to.
Background
The pressure therapy is a method of applying pressure to limbs to improve blood circulation of the limbs or to increase blood flow of important organs such as heart, brain, and kidney, thereby correcting ischemia and anoxia of the organs. The commonly used method includes external counterpulsation therapy and limb compression therapy. The limb compression therapy is a treatment method which pressurizes soft tissues of limbs by regularly inflating and exhausting gas (or liquid) through a sac sleeved on the limbs so as to promote the fluid between the tissues of the limbs to flow back to the heart through veins and lymphatic vessels, so that the blood circulation of the limbs is accelerated, and the local edema of the limbs is eliminated. The limb compression therapy equipment designed and produced based on the therapy purpose needs to frequently pressurize the sac (water or gas) in actual use, so that the fatigue performance of the sac needs to be tested to ensure the life safety of a user.
Disclosure of Invention
The utility model discloses consider if only fill the gassing test to limb pressurization treatment facility's bag in fatigue performance test, physical environment when can't be full of liquid in the true simulation bag can lead to fatigue performance test's result accurate inadequately, influences the security that the patient used this product, has consequently designed one kind and can aerify or fill the device that carries out fatigue test to the bag.
The utility model discloses specific technical scheme as follows:
a bag fatigue testing device comprises a connecting pipe, an air pump, an inflation pipe, a liquid tank, a liquid pump, a liquid filling pipe, a pressure relief pipe, a pressure controller, an electronic counter, a control circuit and a power switch,
the connecting pipe is used for connecting with the bag to be tested and inflating gas or liquid (the liquid can be water, oil and the like) to the bag;
the air pump is communicated with the connecting pipe through an inflation pipe, and the inflation pipe is provided with an electromagnetic valve A;
the liquid tank, the liquid pump and the liquid charging pipe are sequentially connected, the liquid charging pipe is communicated with the connecting pipe, the pressure relief pipe is respectively communicated with the connecting pipe and the liquid tank, the electromagnetic valve B is installed on the liquid charging pipe, and the electromagnetic valve C is installed on the pressure relief pipe;
an exhaust valve is arranged on the connecting pipe;
the connecting pipe is communicated with a pressure sampling pipe of the pressure controller;
the control circuit includes:
(1) the power supply supplies power to the electronic counter, the electronic counter outputs a path of electric signal to supply power to the pressure controller, a relay of the pressure controller outputs a path of electric signal to respectively supply power to the electromagnetic valve C and the air pump and the liquid pump, and the power supply states of the air pump and the liquid pump are switched through the mode switch;
(2) the pressure controller relay outputs an electric signal to the electronic counter, and the electronic counter counts according to the on/off signal output by the pressure controller relay;
(3) the power supply supplies power to the electromagnetic valves A and B, the switches of the electromagnetic valves A and B are switched through the pipeline switch,
when the air inflation test is carried out on the bag, the mode switch is switched to an air pump working mode, and the pipeline switch switches the opening state of the electromagnetic valve A; when the liquid filling test is carried out on the bag, the mode switch is switched to the liquid pump working mode, and the pipeline switch switches the opening state of the electromagnetic valve B.
Before testing, the rated test times of an electronic counter are set, and a pressure controller sets the pressure value and the pressure difference value of the pressure resistance of the bag to be tested. During testing, the mode switch and the pipeline switch are used for switching the working mode of the air/liquid pump, the power supply supplies power to the electromagnetic valve C and the air/liquid pump through the pressure controller, and the electromagnetic valve C is in a closed state. When the pressure controller reaches a set pressure resistance value through the air/hydraulic pressure in the pressure sampling tube detection tube, the relay of the pressure controller is powered off to the electromagnetic valve C and the air/liquid pump, the air/liquid pump stops working, the electromagnetic valve C is opened and decompressed, the air/hydraulic pressure in the bag is reduced, when the set pressure difference value is reached, the relay of the pressure controller is powered on to the electromagnetic valve C and the air/liquid pump, the electromagnetic valve C is closed, the air/liquid pump charges/discharges air/liquid to the bag, the electronic counter counts according to the power-on/off signal output by the relay of the pressure controller, when the count reaches the set value, the relay of the electronic counter cuts off the power supply of the pressure controller, and the.
Preferably, the bag fatigue test device, the pressure release pipe is connected with the connecting pipe before gas tube and liquid charging pipe, namely the pressure release pipe is closer to the position of the bag to be tested on the whole pipeline, so that the pressure release is faster, and the residual gas/liquid in the pipeline is less.
Preferably, the liquid tank is also provided with a heating/refrigerating device, and the liquid tank can be heated or refrigerated by the liquid to test the fatigue performance of the bag in liquid environments with different temperatures. Furthermore, the liquid tank is also provided with a constant temperature control device to ensure that the temperature of the liquid is constant. Furthermore, the liquid tank, the liquid filling pipe and the connecting pipe are also provided with heat insulation layers, so that heat exchange between liquid and the external environment in the test process is reduced.
Preferably, the communication position of the pressure relief pipe and the liquid phase is positioned above the liquid level, so that the pressure relief of gas is facilitated, and the liquid is prevented from flowing backwards.
Bag fatigue test device aerifys when switching with the topping up test, before carrying out the test next time, need open the blowoff valve earlier, remains the gas or the liquid evacuation in the pipeline with last test. Preferably, the emptying valve is positioned at the lowest part of the integral pipeline of the bag fatigue testing device, so that the gas or liquid in the pipeline can be emptied thoroughly.
The utility model discloses the advantage:
1. the utility model discloses be suitable for the pocket fatigue test of liquid filling and type of aerifing limbs pressurization treatment equipment, it is compatible strong.
2. The utility model discloses physical environment when can effectively simulate the bag and use guarantees that fatigue performance test's result is true, accurate, ensures patient safe in utilization.
3. The utility model discloses simple structure utilizes a pressure release pipe and solenoid valve ingeniously to solve the problem of aerifing and pressure release when topping up liquid is compatible, and the design is novel unique.
Drawings
Fig. 1 is a schematic structural view of a capsular fatigue testing device according to the present invention.
Detailed Description
The following examples illustrate specific steps of the present invention, but are not limited thereto.
Terms used in the present invention generally have meanings commonly understood by those of ordinary skill in the art, unless otherwise specified.
The invention is described in further detail below with reference to specific examples and with reference to data, it being understood that these examples are for the purpose of illustration only and are not intended to limit the scope of the invention in any way.
In the following examples, various procedures and methods not described in detail are conventional methods well known in the art.
The present invention will be further described with reference to the following specific embodiments.
Component parameters:
an air pump (pressure range: 82-90kPa, flow rate: 40L/min, power supply: AC220/50Hz, power: 180W).
Water pump (pressure range: 0-200kPa, flow: 3 m)3H, power supply: AC220/50Hz, Power: 370W).
A pressure controller (pressure range of 100-100kPa, precision of 0.5 grade, power supply of AC220/50Hz, control of a group of relays, and loaded power of less than or equal to 700W).
An electronic counting controller (counting range: 0-999999, power supply: AC220/50Hz, two sets of relay outputs, power-off memory function, counting signal: infrared sensor/electric signal).
Power switch (maximum operating current: 10A).
Electromagnetic valves (0-1Mpa, DN16 pipe diameter, AC220V, normally closed 1, normally open 2).
Mode switch (maximum operating current: 10A, 2 mode).
The air pump of the utility model adopts the Hailin model D55L; the pressurizing water pump selects a minister source (CHENYUAN) model JET-370S; the solenoid valve is selected from Elecake (ELECALL) model 2W-040-10B; the intelligent pressure controller selects an SNS Shenchi model YZ-S82; the electronic counter is AOTUKER model ATK 72-C; the power switch selects Yinxin electrical model 56SW 110; the plug is selected from BULL (BULL) model GNT-10; the mode switch is selected from a Zhengtai (CHNT) model HZ 10.
Example 1
A bag fatigue testing device comprises a connecting pipe 1, an air pump 2, an inflation pipe 3, a liquid tank 4, a liquid pump 5, a liquid filling pipe 6, a pressure relief pipe 7, a pressure controller 8, an electronic counter 9, a control circuit and a power switch 19 as shown in figure 1,
the connecting pipe 1 is used for connecting with the bag 11 to be tested and inflating gas or liquid (the liquid can be water, oil and the like) to the bag;
the air pump 2 is communicated with the connecting pipe 1 through an inflation pipe 3, and an electromagnetic valve A17 is arranged on the inflation pipe 3;
liquid case 4, liquid pump 5 and liquid filling pipe 6 connect gradually, liquid filling pipe 6 and connecting pipe 1 intercommunication, pressure release pipe 7 communicates with connecting pipe 1 and liquid case 4 respectively, install solenoid valve B16 on the liquid filling pipe 6, install solenoid valve C18 on the pressure release pipe 7, pressure release pipe 7 is connected with connecting pipe 1 in advance in gas filling pipe 3 and liquid filling pipe 6, the more position that is close the bag that awaits measuring on whole pipeline of pressure release pipe promptly, make the pressure release faster, the pipeline remains gas/liquid few.
An exhaust valve 12 is arranged on the connecting pipe 1;
the connecting pipe 1 is communicated with a pressure sampling pipe 13 of the pressure controller 8;
the control circuit includes:
(1) the power supply 10 supplies power to the electronic counter 9, the electronic counter 9 outputs one path of electric signal to supply power to the pressure controller 8, the relay of the pressure controller 8 outputs one path of electric signal to respectively supply power to the electromagnetic valve C18 and the air pump 2 and the liquid pump 5, and the power supply states of the air pump 2 and the liquid pump 5 are switched through the mode switch 15;
(2) the relay of the pressure controller 8 outputs an electric signal to the electronic counter 9, and the electronic counter 9 counts according to the on/off signal output by the relay of the pressure controller 8;
(3) the power supply 10 supplies power to the solenoid valves a and B, switches the solenoid valve a 17 and the solenoid valve B16 on and off by the line switch 14,
when the air inflation test is carried out on the sac, the mode switch 15 is switched to the working mode of the air pump 2, and the pipeline switch 14 switches the opening state of the electromagnetic valve A17;
when the liquid filling test is performed on the bag, the mode switch 15 is switched to the working mode of the liquid pump 5, and the pipeline switch 14 switches the opening state of the electromagnetic valve B16.
The liquid tank 4 is also provided with a heating/refrigerating device which can heat or refrigerate the liquid to be filled and test the fatigue performance of the bag in liquid environments with different temperatures. Further, the liquid tank 4 is also provided with a constant temperature control device to ensure that the temperature of the liquid is constant. Furthermore, the liquid tank 4, the liquid filling pipe 6 and the connecting pipe 1 are also provided with heat insulation layers, so that heat exchange between liquid and the external environment in the test process is reduced.
The communicating part of the pressure relief pipe 7 and the liquid tank 4 is positioned above the liquid level, so that the pressure relief of air is facilitated, and the liquid is prevented from flowing backwards.
The utility model discloses bag fatigue test device is aerifing and when the topping up test switches, before carrying out the test next time, needs open blowoff valve 12 earlier, remains the gas or the liquid evacuation in the pipeline with last test. The evacuation valve 12 is located at the lowest position of the whole pipeline of the bag fatigue testing device, so that the gas or liquid in the pipeline can be evacuated thoroughly.
Testing parameters:
pressurizing the carrier: air and water.
Test count range: 0-999999 times.
The pressurizing range is as follows: air-82-90 kPa, water-0-200 kPa.
The control mode is as follows: and (5) controlling the pressure/electric signal to reach a set value, and ending the test.
Before testing, the rated test times of the electronic counter 9 are set, and the pressure controller 8 sets the pressure value and the pressure difference value of the pressure resistance of the bag 11 to be tested. During testing, the mode switch 15 and the pipeline switch 14 are used to switch the operation mode of the air/liquid pump 5, the power supply 10 supplies power to the electromagnetic valve C18 and the air/liquid pump 5 through the pressure controller 8, and the electromagnetic valve C18 is in a closed state. When the pressure controller 8 detects that the air/hydraulic pressure in the pipe reaches a set pressure-resistant value through the pressure sampling pipe 13, the relay of the pressure controller 8 powers off the electromagnetic valve C18 and the air pump 2 or the liquid pump 5, the air pump 2 or the liquid pump 5 stops working, the electromagnetic valve C18 is opened and decompressed, the air/hydraulic pressure in the bag is reduced, when a set pressure difference value is reached, the relay of the pressure controller 8 powers on the electromagnetic valve C18 and the air pump 2 or the liquid pump 5, the electromagnetic valve C18 is closed, the air pump 2 or the liquid pump 5 charges air/liquid into the bag, the electronic counter 9 counts according to the power on/off signal output by the relay of the pressure controller 8, and when the count reaches a set value, the relay of the electronic counter 9 cuts off the power supply of the pressure controller 8.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (8)
1. A bag fatigue testing device is characterized by comprising a connecting pipe, an air pump, an inflation pipe, a liquid tank, a liquid pump, a liquid filling pipe, a pressure relief pipe, a pressure controller, an electronic counter, a control circuit and a power switch,
the air pump is communicated with the connecting pipe through an inflation pipe, and the inflation pipe is provided with an electromagnetic valve A;
the liquid tank, the liquid pump and the liquid charging pipe are sequentially connected, the liquid charging pipe is communicated with the connecting pipe, the pressure relief pipe is respectively communicated with the connecting pipe and the liquid tank, the electromagnetic valve B is installed on the liquid charging pipe, and the electromagnetic valve C is installed on the pressure relief pipe;
an exhaust valve is arranged on the connecting pipe;
the connecting pipe is communicated with a pressure sampling pipe of the pressure controller;
the control circuit comprises a power supply, the power supply respectively supplies power to the electronic counter and the electromagnetic valves A and B, the electronic counter outputs one path of electric signal to supply power to the pressure controller, and the pressure controller relay outputs the electric signal to the electronic counter; the relay of the pressure controller outputs a path of electric signal to respectively supply power to the electromagnetic valve C and the air pump and the liquid pump.
2. A capsular fatigue testing device according to claim 1, wherein the pressure relief tube is connected to the connecting tube prior to the inflation tube and the inflation tube.
3. The fatigue testing device for the capsular bag according to claim 1, further comprising an adapter for connecting the connection tube to the inflation/liquid-filling ports of the capsular bags of different types.
4. A bladder fatigue testing apparatus according to claim 1, wherein said tank further comprises a heating/cooling means.
5. A capsular fatigue testing device according to claim 4, wherein the liquid chamber further has a thermostatic control device.
6. A fatigue testing device for a capsular bag according to claim 4, wherein the liquid tank, the liquid filling tube and the connecting tube further comprise an insulating layer.
7. A capsular fatigue testing device according to claim 1, wherein the pressure relief tube is located above the liquid level at the point of communication with the liquid phase.
8. The bladder fatigue testing apparatus of claim 1, wherein the evacuation valve is located at a lowest point of the bladder fatigue testing apparatus conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599891.8U CN212180506U (en) | 2020-04-21 | 2020-04-21 | Bag fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599891.8U CN212180506U (en) | 2020-04-21 | 2020-04-21 | Bag fatigue test device |
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| CN212180506U true CN212180506U (en) | 2020-12-18 |
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| CN202020599891.8U Active CN212180506U (en) | 2020-04-21 | 2020-04-21 | Bag fatigue test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092291A (en) * | 2021-04-21 | 2021-07-09 | 南京汇通医疗技术有限公司 | Bag fatigue performance test device system |
| CN113567278A (en) * | 2021-07-27 | 2021-10-29 | 刘好 | Reciprocating type medical anesthesia gas storage bag quality detection device |
| CN113567278B (en) * | 2021-07-27 | 2024-04-26 | 陶小娟 | Reciprocating type medical anesthesia gas storage bag quality detection device |
-
2020
- 2020-04-21 CN CN202020599891.8U patent/CN212180506U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092291A (en) * | 2021-04-21 | 2021-07-09 | 南京汇通医疗技术有限公司 | Bag fatigue performance test device system |
| CN113567278A (en) * | 2021-07-27 | 2021-10-29 | 刘好 | Reciprocating type medical anesthesia gas storage bag quality detection device |
| CN113567278B (en) * | 2021-07-27 | 2024-04-26 | 陶小娟 | Reciprocating type medical anesthesia gas storage bag quality detection device |
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