CN213456585U

CN213456585U - Tester for testing anti-synthetic blood penetrability of protective material

Info

Publication number: CN213456585U
Application number: CN202022357978.7U
Authority: CN
Inventors: 蔡娜娜; 程士孟
Original assignee: QUANZHOU MEIBANG INSTRUMENT CO LTD
Current assignee: QUANZHOU MEIBANG INSTRUMENT CO LTD
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-15
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses an anti synthetic blood penetrability tester of protective material, including base, supporting seat and anchor clamps, the anchor clamps top is equipped with quick-operation joint, be equipped with on the base control mainboard and with control mainboard electric connection's electric proportional valve and touch display screen, the control mainboard has timing circuit, and the end of giving vent to anger of electric proportional valve is connected with quick-operation joint through trachea B, is combined with the manometer on the trachea B. The utility model discloses a control mainboard gives electric proportional valve voltage signal, every voltage signal of electric proportional valve corresponds an output atmospheric pressure, thereby the blood pressure that the control sample bore, pressure is tested step by low to high, and the equal pressurize of every level of pressure value is long when presetting, the automatic timing is and the automatic timing end of reminding, if do not appear penetrating phenomenon when the time then continue next level pressure test, high durability and convenient operation, it is accurate to detect, can overcome the inconvenient and pressure overshoot problem that exists of pressure regulating that prior art exists, realize quick accurate automatic pressure regulating and automatic timing.

Description

Tester for testing anti-synthetic blood penetrability of protective material

Technical Field

The utility model belongs to the technical field of the protective articles detects, concretely relates to anti synthetic blood penetrability tester of protective material for the resistance to synthetic blood penetrability of test protective material under different experimental pressure.

Background

The blood penetrability tester is used for measuring the resistance of the medical protective material to the penetrability of synthetic blood, and comprises a sample clamp for fixing samples and a control air circuit for applying different pressure values to the samples in the sample clamp, the test of each sample follows the test standard, the step-by-step measurement from low pressure to high pressure is required, for example, five pressure levels of 1.75 KPa, 3.5KPa, 7 KPa, 14 KPa and 20 KPa are required, and the pressure is required to be maintained for a certain time, for example, 5min, in each pressure level test. The conventional blood penetration tester generally adopts a manual pressure regulating mode, so that the pressure regulation is inconvenient, pressure overshoot and instability phenomena exist, and the test result is easily influenced. Therefore, it is necessary to design a tester for the penetration resistance of synthetic blood by protective materials.

SUMMERY OF THE UTILITY MODEL

In view of the not enough of prior art, the utility model aims to solve the technical problem that an anti synthetic blood penetrability tester of protective material is provided, it can be fast accurate automatic voltage regulation and automatic timing, convenient operation.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides an anti synthetic blood penetrability tester of protective material, includes the base, adorns the supporting seat at base top admittedly and installs the anchor clamps on the supporting seat, the anchor clamps top is equipped with quick-operation joint, be equipped with on the base control mainboard and with control mainboard electric connection's electric proportional valve and touch display screen, the control mainboard has timing circuit, the inlet end of electric proportional valve is connected with the air supply through trachea A, the end of giving vent to anger of electric proportional valve is connected with quick-operation joint through trachea B, the last manometer of adorning on the base admittedly that combines of trachea B.

Preferably, the electric proportional valve adopts ITV0010-3 BL.

Preferably, the bottom of the clamp is provided with a liquid discharging valve.

Preferably, a liquid receiving cup is arranged at the position, corresponding to the clamp, of the top of the base.

Preferably, the bottom of the base is provided with leveling feet.

Preferably, the touch display screen is positioned on the front surface of the base and is obliquely arranged.

Preferably, a screw rod is arranged on the support seat corresponding to the clamp, the clamp comprises a clamp seat, a washer A, a washer B and a flange cover, the clamp seat, the washer A, the washer B and the flange cover are sequentially sleeved with the screw rod and locked, the clamp seat is connected with the support seat, a test groove communicated with a quick connector is arranged in the clamp seat, a clamping position for clamping a sample is arranged between the clamp seat and the washer A, a retarding screen is clamped between the washer A and the washer B, the flange cover is in press fit with the washer B, and one side of the flange cover, far away from the washer B, is in lock fit with a transparent cover through a pressing washer.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses the tester includes anchor clamps and fills the gaseous trachea of pressure to the test groove in the anchor clamps, and combine on the trachea manometer and with control mainboard electric connection's electric proportional valve, the control mainboard gives electric proportional valve voltage signal, every voltage signal of electric proportional valve corresponds an output atmospheric pressure, pierce through the anchor clamps with atmospheric pressure input blood, thereby the blood pressure that the control sample bore, pressure is tested step by low to high, and every grade of pressure value is all pressurize and is predetermine long, through control mainboard automatic timing and automatic warning timing end, if do not appear the penetrance phenomenon when the time then continue next stage pressure test, high durability and convenient operation, detect accurately, can overcome the inconvenience that prior art exists and have the pressure problem of overshooting, realize quick accurate automatic pressure regulating and automatic timing.

Drawings

Fig. 1 is the front structure schematic diagram of the tester of the utility model.

Fig. 2 is a schematic view of the front structure of the clamp of the present invention.

Fig. 3 is the back structure schematic diagram of the tester of the present invention.

Fig. 4 is a schematic view of the back structure of the clamp of the present invention.

Fig. 5 is a schematic diagram of the control circuit wiring of the present invention.

The labels in the figure are: 10. a base; 11. a liquid receiving cup; 20. a supporting seat; 21. a support bar; 30. a clamp; 31. a holder; 32. a flange cover; 33. a transparent cover; 34. a quick coupling; 35. a tapping valve; 41. a control main board; 42. a touch display screen; 43. an electric proportional valve; 44. and a pressure gauge.

Detailed Description

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1-5, the present embodiment provides a tester for testing the penetration resistance of synthetic blood with protective material, which comprises a base 10, a supporting base 20 fixed on the top of the base 10, and a clamp 30 mounted on the supporting base 20, wherein the base 10 and the supporting base 20 are preferably made of stainless steel, and are durable.

In the embodiment, the base 10 is hollow, a control main board 41, an electric proportional valve 43 electrically connected with the control main board 41 and a touch display screen 42 are arranged on the base 10, the control main board 41 is arranged inside the base 10 and preferably adopts an ESP8266, the control main board 41 is provided with a timing circuit, the electric proportional valve 43 is arranged on the right side of the base 10 and preferably adopts ITV0010-3BL, the touch display screen 42 preferably adopts OCM480272T430-2D, and the touch display screen 42 is arranged on the front face of the base 10 and is inclined, so that an experimenter can observe and read data or operate the touch display screen. In addition, the front of the base 10 is provided with a start button and a power switch, the back of the base 10 is provided with a power connector and an air supply connector, the bottom of the base 10 is provided with leveling support legs, and the tester is leveled through the leveling support legs before testing.

In this embodiment, the supporting seat 20 includes two supporting plate groups oppositely fixed on the left and right sides of the base 10 and a supporting rod 21 horizontally connected between the two supporting plate groups and located above the base 10, two ends of the supporting rod 21 are fixedly connected with the supporting plate groups through screws, and the clamp 30 is installed on the supporting rod 21. Further, in order to replace or transfer the clamp 30, the clamp 30 may be detachably mounted on the support base 20, and a fastening screw may be used to connect the clamp 30 and the support rod 21.

In this embodiment, a screw is provided on the support base 20 at a position corresponding to the position of the clamp 30, that is, a screw is provided on the support rod 21 at a position where the clamp 30 is installed, and the number of the screws is preferably 4. The clamp 30 comprises a clamp seat 31, a washer A, a washer B and a flange cover 32 which are sequentially sleeved in a screw and locked, the clamp seat 31 is connected with the support seat 20, a test groove for filling synthetic blood is arranged in the clamp seat 31, a clamping position for clamping a sample is arranged between the clamp seat 31 and the washer A, the sample seals the test groove and is contacted with the synthetic blood, a blocking sieve is arranged between the washer A and the washer B, the blocking sieve provides compression support for the sample and keeps a space for the synthetic blood penetrating through the sample to diffuse or overflow, the flange cover 32 is in compression fit on the washer B, one side of the flange cover 32, far away from the washer B, is in locking fit with a transparent cover 33 through the compression washer, whether the synthetic blood penetrates through the sample can be directly observed through the transparent cover 33, and if so, the test is stopped and the pressure value at that time is recorded.

In this embodiment, the top of the fixture 30 is provided with a quick coupling 34 communicated with a test groove, the bottom of the fixture 30 is provided with a liquid discharge valve 35 communicated with the test groove, a position of the top of the base 10 corresponding to the fixture 30 is provided with a liquid receiving cup 11, an air inlet end of the electric proportional valve 43 is connected with an air source through an air pipe a, an air outlet end of the electric proportional valve 43 is connected with the quick coupling 34 through an air pipe B, the air pipe B is combined with a pressure gauge 44 fixedly mounted on the base 10, the liquid discharge valve 35 is closed before a sample test is installed, a proper amount of synthetic blood is added into the test groove through the quick coupling 34, and then the air pipe B is connected for testing: the main control board 41 provides voltage signals to the electric proportional valve 43, each voltage signal of the electric proportional valve 43 corresponds to an output air pressure, the air pressure is input to the blood penetration fixture 30, so that the blood pressure borne by the sample is controlled, the test is performed step by step from low to high, each step of pressure value is kept for a preset time (for example: 5 min), the automatic timing is performed through the main control board 41, the end of the timing is automatically reminded, and if no penetration phenomenon occurs at the next time, the next step of pressure test is continued. And after the test work is finished, opening the liquid discharging valve 35 to enable the synthetic blood flow channel to be connected into the liquid cup 11, opening the test groove, taking out the sample, and cleaning the test groove.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art should not depart from the technical scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a protective material anti synthetic blood penetrability tester which characterized in that: the clamp comprises a base, a supporting seat fixedly mounted at the top of the base and a clamp mounted on the supporting seat, wherein a quick connector is arranged at the top of the clamp, a control mainboard, an electric proportional valve and a touch display screen are arranged on the base and electrically connected with the control mainboard, the control mainboard is provided with a timing circuit, the air inlet end of the electric proportional valve is connected with an air source through an air pipe A, the air outlet end of the electric proportional valve is connected with the quick connector through an air pipe B, and a pressure gauge fixedly mounted on the base is combined on the air pipe B.

2. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: the electric proportional valve adopts ITV0010-3 BL.

3. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: and a liquid discharging valve is arranged at the bottom of the clamp.

4. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: and a liquid receiving cup is arranged at the position, corresponding to the clamp, of the top of the base.

5. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: and leveling support legs are arranged at the bottom of the base.

6. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: the touch display screen is positioned on the front surface of the base and is obliquely arranged.

7. The apparatus for testing the penetration resistance of protective material to synthetic blood according to claim 1, wherein: the device comprises a support seat, a screw rod, a gasket A, a gasket B and a flange cover, wherein the screw rod is arranged on the support seat corresponding to a clamp, the clamp comprises a clamp seat, a gasket A, a gasket B and a flange cover, the clamp seat, the gasket A, the gasket B and the flange cover are sequentially sleeved in the screw rod and locked, the clamp seat is connected with the support seat, a test groove communicated with a quick connector is arranged in the clamp seat, a clamping position for clamping a sample is arranged between the clamp seat and the gasket A, a retarding screen is clamped between the gasket A and the gasket B, the flange cover is in press fit with the gasket B, and one side, far away from.