CN103063379A - Air leakage detection device for infusion tube - Google Patents

Air leakage detection device for infusion tube Download PDF

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Publication number
CN103063379A
CN103063379A CN2012105502081A CN201210550208A CN103063379A CN 103063379 A CN103063379 A CN 103063379A CN 2012105502081 A CN2012105502081 A CN 2012105502081A CN 201210550208 A CN201210550208 A CN 201210550208A CN 103063379 A CN103063379 A CN 103063379A
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CN
China
Prior art keywords
woven hose
gas
ventilation
leak detection
gas leak
Prior art date
Application number
CN2012105502081A
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Chinese (zh)
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CN103063379B (en
Inventor
吴波
胡友民
何纯
李延磊
张如杰
刘奥
熊晶
段晓坤
Original Assignee
华中科技大学
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Publication date
Application filed by 华中科技大学 filed Critical 华中科技大学
Priority to CN201210550208.1A priority Critical patent/CN103063379B/en
Publication of CN103063379A publication Critical patent/CN103063379A/en
Application granted granted Critical
Publication of CN103063379B publication Critical patent/CN103063379B/en

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Abstract

The invention discloses an air leakage detection device. The air leakage detection device is arranged on a working table, is used for achieving air leakage detection to an infusion tube and is characterized by comprising a sealed part (1), a clamping part (2) and a gas transmission part (3), wherein the sealed part (1) is arranged at one end of the working table and is used for sealing of an aeration end of a needle head of the infusion tube; the clamping part (2) is arranged in the middle of the working table and is used for clamping and fixing the infusion tube to be detected and enabling the position of the infusion tube to be fixed in the process of detection; the gas transmission part (3) is arranged at the other end of the working table and is used for transmitting gas to and pressurize the other end, relative to a pillow, of the infusion tube. After aeration and pressure maintaining for a period of time, the detection whether the infusion tube leaks the gas can be achieved through a pressure change inside a measuring tube. The air leakage detection device is compact in operation, higher in efficiency than manual operation and small in pollution to the infusion tube than the manual operation. A pneumatic control circuit is adopted to pressurize the infusion tube and test the magnitude of pressure, and therefore the possibility of manual misjudgment is reduced, and the operation precision is improved.

Description

The woven hose gas leak detection device

Technical field

The present invention relates to a kind of woven hose gas leak detection device, belong to medicine equipment production equipment field.

Background technology

The production run of one-time infusion tube is first material loading and puts into leakage testing device, after being completed, manually twines woven hose again and becomes prescribed form, puts into the packaging bag that has made, and then unifies sealing operation by the special messenger, and vanning.

It is to adopt manually to carry out that present woven hose gas leakage detects.Detection woven hose gas leakage by manually putting into proving installation, is manually blocked test one end, and other end ventilation and pressurize 4-5 second are by rain glass, by the sealing of this part of artificial judgment and choose.

Present woven hose gas leakage detects and has following shortcoming and defect: (1) is owing to the whole process using manually-operated, so production efficiency is very low; (2) by manually detecting the gas leakage part, be the experience decision by the operator to a great extent, very highland erroneous judgement property is arranged; (3) germ is enclosed in manual operations easily, often will carry out strict sterilization to the packer, will operate in huge sterile purification workshop simultaneously, needs to consume a large amount of energy and production space.

Summary of the invention

The objective of the invention is the shortcoming of manually leaking gas and detecting for existing one-time infusion tube, provide a kind of and can automatically finish the device that woven hose gas leakage detects, solve the problem that the manual detection accuracy rate is not high, efficient is lower that exists at present.

Realize a kind of gas leak detection device of the object of the invention, it is arranged on the worktable, is used for realizing that the gas leakage to woven hose detects, and it is characterized in that it comprises:

Hermetic unit, it is arranged on worktable one end, is used for the sealing to woven hose syringe needle ventilation end;

Clamping part, it is arranged on the worktable middle part, is used for clamping woven hose to be detected, and its position in testing process is fixed;

Vent portion, it is arranged on the worktable other end, is used for the other end ventilation pressurization to the relative syringe needle of woven hose;

After ventilation pressurize a period of time, change by measuring the woven hose internal pressure, can finish the detection whether woven hose is leaked gas.

As a further improvement on the present invention, described vent portion comprises solenoid electric valve, tracheae and cylinder, wherein, described tracheae one end is communicated with source of the gas by solenoid electric valve, the other end is arranged on the piston rod of cylinder, the piston movement of described cylinder, the port that promotes the tracheae on its piston rod is communicated with the ventilation end of woven hose, can be to ventilation pressurization in the woven hose.

As a further improvement on the present invention, described vent portion also comprises the retaining valve that is arranged on the tracheae, is used for guaranteeing that the air-flow one direction passes into woven hose.

As a further improvement on the present invention, described vent portion also comprises the pressure transducer that is arranged on the woven hose end, is used for measuring woven hose internal pressure size.

As a further improvement on the present invention, described tracheae is a plurality of, is communicated with a plurality of woven hose ventilation ends respectively, and ventilation detects when realizing a plurality of woven hose.

As a further improvement on the present invention, described hermetic unit comprises the revolution clamping cylinder, the piston rod end of this revolution clamping cylinder is provided with seal plug, when carrying out sealed clamping, revolution clamping cylinder 90-degree rotation, its piston rod moves downward, and seal plug is blocked the syringe needle ventilation end of woven hose, realizes the sealing of woven hose ventilation end.

As a further improvement on the present invention, described revolution clamping cylinder is a plurality of, sealing when being used for a plurality of woven hose syringe needle ventilation end, sealing detection when realizing a plurality of woven hose.

As a further improvement on the present invention, described clamping part gas pawl, this gas pawl is a plurality of, the length direction along woven hose is arranged on the worktable respectively, to be used for segmentation the woven hose body is clamped.

As a further improvement on the present invention, described gas pawl is many groups, and a plurality of gas pawls in every group of gas pawl are finished the clamping to a woven hose, detect thereby clamp when realizing a plurality of woven hose.

Hermetic unit of the present invention mainly contains the revolution clamping cylinder, and the woven hose syringe needle is partly sealed, and can not leak gas when making its pressurization; Clamping part utilizes three exhaust pawls, catches respectively three positions, fixedly woven hoses of woven hose; The gas delivery part of packaging type solenoid electric valve, retaining valve, pressure transducer, cylinder and tracheae constituent apparatus is to the woven hose detection of pressurizeing.

Device operation of the present invention is compact, and efficient is higher than manually-operated, and compares manual operations, to the pollution minimizing of woven hose; Adopt Pneumatic control circuit that woven hose is pressurizeed, and test pressure is big or small, has reduced the possibility of artificial erroneous judgement, improved performance accuracy.

Description of drawings

Fig. 1 is the structural representation of the gas leak detection device of the embodiment of the invention;

Fig. 2 is the structural representation of hermetic unit of the gas leak detection device of the embodiment of the invention;

Fig. 3 is the structural representation of clamping part of the gas leak detection device of the embodiment of the invention;

Fig. 4 is the structural representation of vent portion of the gas leak detection device of the embodiment of the invention.

Embodiment

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail; following examples only are indicative; not consisting of is limitation of the invention, all not breaking away from modification or the modification of doing under the Spirit Essence of the present invention, all belongs to protection scope of the present invention.

As shown in Figure 1, the gas leak detection device of the embodiment of the invention comprises hermetic unit 1, clamping part 2 and gas delivery part 3.Wherein, hermetic unit 1 is used for finishing the sealing to woven hose syringe needle ventilation end, clamping part 2 is used for adding fastening woven hose, and the assurance woven hose is fixed in its position on test table of whole test process, and gas delivery part 3 is used for the gas transmission of the woven hose other end is pressurizeed.After ventilation pressurize a period of time, change the detection woven hose by the measuring tube internal pressure and whether leak gas.

As shown in Figure 2, hermetic unit 1 comprises revolution clamping cylinder 11, the piston rod end of this revolution clamping cylinder 11 is provided with seal plug, when carrying out sealed clamping, cylinder 11 90-degree rotations, piston rod moves downward, and seal plug is blocked the syringe needle ventilation end of woven hose, realization guarantees that with the sealing of woven hose ventilation end woven hose can only end ventilation.Revolution clamping cylinder 11 lower ends are fixed on the work test board by a mounting flange 12.

Revolution clamping cylinder 11 can be many groups, to be used for simultaneously a plurality of woven hoses being carried out shutoff simultaneously respectively.

As shown in Figure 3, clamping part 2 is gas pawl 21, and gas pawl 21 is a plurality of, and the length direction along woven hose is arranged on the test table respectively, and it is used for segmentation the woven hose body is clamped.During work, actuating cylinder promotes each gas pawl 21 and clamps woven hose, thereby it is maintained static.

Gas pawl 21 can be many groups, and many groups of corresponding hermetic unit 1 revolution clamping cylinders 11 are fixedly clamped to a plurality of woven hoses simultaneously realizing respectively.

Gas pawl 21 in the present embodiment is distributed as 3 along the length direction of woven hose, with clamp respectively woven hose before, during and after three positions, when guaranteeing the woven hose ventilation, can be not mobile to some extent because of the effect of pressure.Also can be other any number.

As shown in Figure 4, vent portion 3 comprises packaging type solenoid electric valve 31, retaining valve 32, pressure transducer 33, tracheae 34 and cylinder 35, and said elements forms pneumatic circuit.

Tracheae 34 1 ends are communicated with source of the gas by solenoid electric valve 31, the other end is arranged on the piston rod of cylinder 35, be provided with retaining valve 32 on the tracheae 34, the piston movement of cylinder 35, tracheae 34 ports on the piston rod of promotion cylinder 35 are communicated with the ventilation end of woven hose, can be to ventilation pressurization in the woven hose.Retaining valve 32 guarantees that airflow direction is a direction, in case in pressure maintaining period, back flow of gas.The woven hose end is provided with pressure transducer 33, is used for measuring the woven hose internal pressure size in the pressure maintaining period.

Correspondingly, tracheae 34 can have many, can be used for respectively being communicated with the ventilation end of a plurality of woven hoses to be detected, ventilation detects when realizing a plurality of woven hose, pressure transducer 33 and retaining valve 32 are corresponding also can be many groups, and solenoid electric valve 31 can be for there being the integrated form solenoid electric valve of a plurality of interfaces.

Preferably be specifically described as an example of one group of four woven hose example in the present embodiment.At first, with four woven hoses by four group of three exhaust pawl 21 segmentation fixedly woven hose on test board, then utilize four revolution clamping cylinders 11 to realize respectively the sealing that each woven hose ventilation is held.After woven hose was fixing, four were turned round separately 90-degree rotation of clamping cylinder 11, and its piston rod descends, and the blow vent of each woven hose is blocked respectively.The other end of woven hose is the ventilation end, and the pistons end of cylinder 35 is strip, and the end has four apertures, and the gas transmission end of four tracheaes 34 is communicated with an aperture respectively, and piston movement makes aperture be communicated with woven hose ventilation end, but just each woven hose is given in gas transmission.Be pressurized to about 0.6MPa by ventilation, stop ventilation, utilize one-way control valve 31 control pressure directions, ventilation pressurize 5 seconds, and record respectively measured pressure in each woven hose by each pressure transducer 33, pressure is the descender not, then be specification product, otherwise be defective.

Claims (9)

1. a gas leak detection device is arranged on the worktable, is used for realizing that the gas leakage to woven hose detects, and it is characterized in that this gas leak detection device comprises:
Hermetic unit (1), it is arranged on worktable one end, is used for woven hose syringe needle ventilation end is sealed;
Clamping part (2), it is arranged on the worktable middle part, is used for clamping woven hose to be detected, and its position in testing process is fixed;
Vent portion (3), it is arranged on the worktable other end, is used for the other end ventilation pressurization to the relative syringe needle of woven hose;
After ventilation pressurize a period of time, change by measuring the woven hose internal pressure, can finish the detection whether woven hose is leaked gas.
2. gas leak detection device according to claim 1, it is characterized in that, described vent portion (3) comprises solenoid electric valve (31), tracheae (34) and cylinder (35), wherein, described tracheae (34) one ends are communicated with source of the gas by solenoid electric valve (31), and the other end is arranged on the piston rod of cylinder (35), the piston movement of described cylinder (35), the port that promotes the tracheae (34) on the described piston rod is communicated with the ventilation end of woven hose, can be to ventilation pressurization in the woven hose.
3. gas leak detection device according to claim 2 is characterized in that, described vent portion (3) also comprises the retaining valve (32) that is arranged on the tracheae (34), is used for guaranteeing that the air-flow one direction passes into woven hose.
4. according to claim 2 or 3 described gas leak detection devices, it is characterized in that described vent portion (3) also comprises the pressure transducer (33) that is arranged on the woven hose end, be used for measuring woven hose internal pressure size.
5. one of according to claim 2-4 described gas leak detection device is characterized in that described tracheae (34) is a plurality of, is communicated with ventilation detection when realizing a plurality of woven hose with a plurality of woven hoses ventilation ends respectively.
6. described gas leak detection device one of according to claim 1-5, it is characterized in that, described hermetic unit (1) comprises revolution clamping cylinder (11), the piston rod end of this revolution clamping cylinder (11) is provided with seal plug, when carrying out sealed clamping, revolution clamping cylinder (11) rotation makes seal plug on the piston rod block the syringe needle ventilation end of woven hose, realizes the sealing of woven hose ventilation end.
7. gas leak detection device according to claim 6 is characterized in that, described revolution clamping cylinder (11) is a plurality of, sealing when being used for a plurality of woven hose syringe needle ventilation end, sealing detection when realizing a plurality of woven hose.
8. described gas leak detection device one of according to claim 1-7, it is characterized in that described clamping part (2) is gas pawl (21), this gas pawl (21) is a plurality of, length direction along woven hose is arranged on the worktable respectively, to be used for segmentation the woven hose body is clamped.
9. gas leak detection device according to claim 8 is characterized in that, described gas pawl (21) is many groups, and a plurality of gas pawls (21) in every group of gas pawl (21) are finished the clamping to a woven hose, detects thereby clamp when realizing a plurality of woven hose.
CN201210550208.1A 2012-12-17 2012-12-17 Air leakage detection device for infusion tube CN103063379B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210550208.1A CN103063379B (en) 2012-12-17 2012-12-17 Air leakage detection device for infusion tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210550208.1A CN103063379B (en) 2012-12-17 2012-12-17 Air leakage detection device for infusion tube

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CN103063379A true CN103063379A (en) 2013-04-24
CN103063379B CN103063379B (en) 2015-10-28

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103616147A (en) * 2013-11-21 2014-03-05 宁波索普橡塑有限公司 Three-opening rubber tube air leakage detection device
CN104236818A (en) * 2014-09-28 2014-12-24 孙吉 Air pressure type detecting device in medical equipment assembling machine
CN104236819A (en) * 2014-09-28 2014-12-24 孙吉 Air pressure type detecting method during medical equipment assembling
CN104634519A (en) * 2013-11-08 2015-05-20 上海康德莱企业发展集团股份有限公司 Leakage plugging detector for infusion sets
CN104849199A (en) * 2015-05-20 2015-08-19 广东美的暖通设备有限公司 Metal pipe pitting-resistant property evaluation device and metal pipe pitting-resistant property evaluation method
CN105628308A (en) * 2015-12-16 2016-06-01 上海宝舜医疗器械有限公司 Airtightness detection device and detection method for multi-exhaust infusion apparatus
CN106768719A (en) * 2016-12-30 2017-05-31 无锡明珠钢球有限公司 Weld the sealing test block structure of pipe sealing test device

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KR20090126511A (en) * 2008-06-04 2009-12-09 이승수 Sewer,water work line oil pressure packer for leakage inspection device;sod
CN201497449U (en) * 2009-09-21 2010-06-02 芜湖市鑫海橡塑制品有限责任公司 Detecting device of bent rubber tubing
CN102494854A (en) * 2011-11-24 2012-06-13 温岭德光自动化设备有限公司 Leakage and plugging detection apparatus of infusion set
CN102607777A (en) * 2012-03-28 2012-07-25 石家庄巨力科技有限公司 Leakage check device for metal hoses in batch
CN202562716U (en) * 2012-04-26 2012-11-28 玉环惠宇机械设备有限公司 Transfusion system detecting apparatus

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KR20090126511A (en) * 2008-06-04 2009-12-09 이승수 Sewer,water work line oil pressure packer for leakage inspection device;sod
CN201497449U (en) * 2009-09-21 2010-06-02 芜湖市鑫海橡塑制品有限责任公司 Detecting device of bent rubber tubing
CN102494854A (en) * 2011-11-24 2012-06-13 温岭德光自动化设备有限公司 Leakage and plugging detection apparatus of infusion set
CN102607777A (en) * 2012-03-28 2012-07-25 石家庄巨力科技有限公司 Leakage check device for metal hoses in batch
CN202562716U (en) * 2012-04-26 2012-11-28 玉环惠宇机械设备有限公司 Transfusion system detecting apparatus

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104634519A (en) * 2013-11-08 2015-05-20 上海康德莱企业发展集团股份有限公司 Leakage plugging detector for infusion sets
CN103616147A (en) * 2013-11-21 2014-03-05 宁波索普橡塑有限公司 Three-opening rubber tube air leakage detection device
CN104236818A (en) * 2014-09-28 2014-12-24 孙吉 Air pressure type detecting device in medical equipment assembling machine
CN104236819A (en) * 2014-09-28 2014-12-24 孙吉 Air pressure type detecting method during medical equipment assembling
CN104236819B (en) * 2014-09-28 2018-05-15 东阳市天齐知识产权运营有限公司 Vapour-pressure type detection method in medical instrument assembling process
CN104236818B (en) * 2014-09-28 2018-05-15 东阳市天齐知识产权运营有限公司 Vapour-pressure type detection device in medical instrument kludge
CN104849199A (en) * 2015-05-20 2015-08-19 广东美的暖通设备有限公司 Metal pipe pitting-resistant property evaluation device and metal pipe pitting-resistant property evaluation method
CN105628308A (en) * 2015-12-16 2016-06-01 上海宝舜医疗器械有限公司 Airtightness detection device and detection method for multi-exhaust infusion apparatus
CN106768719A (en) * 2016-12-30 2017-05-31 无锡明珠钢球有限公司 Weld the sealing test block structure of pipe sealing test device

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