CN101850160B

CN101850160B - Aperture ash discharge test fixture of filter canister

Info

Publication number: CN101850160B
Application number: CN2010102155456A
Authority: CN
Inventors: 李毅; 金士良; 於骞; 洪跃; 丁中久; 屠冉冉
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2010-06-29
Filing date: 2010-06-29
Publication date: 2012-05-23
Anticipated expiration: 2030-06-29
Also published as: CN101850160A

Abstract

The invention aims to provide an aperture ash discharge test fixture of a filter canister. The fixture comprises a fixture support ventilating mechanism and a clamping mechanism. An air inlet end is connected with an inner air source, a seal ring on an air inlet cabin is closely attached with the filter canister, the air outlet end of the filter canister is connected with a gas swirler provided with a seal ring which is closely attached with the filter canister, an air passage discharges gas out via an end cover, a clamping screw is screwed in a slider the sloping surface of which props against one end of a grip jaw, and the other end of the grip jaw props against the filter canister; and an adjusting knob drives a gear matched with a rack arranged below the gas swirler so as to move the gas swirler to be closely attached on the air outlet end of the filter canister. The invention has simple structure, can be mounted and dismounted rapidly, and is suitable for filter canister tests in various specifications.

Description

Aperture ash discharge test fixture of filter canister

Technical field

The present invention relates to the malicious box test fixture of a kind of filter, particularly a kind of aperture ash discharge test fixture of filter canister.

Background technology

Filtering malicious box is epidemic prevention, protective articles very important in the social life, especially at terrible disaster such as earthquake, flood, when infectious disease (like SARS) is popular etc., it is extremely important more to seem.Because the malicious box of filter is common and breathing mask is used, filtering malicious box is through physical absorption and chemical reaction airborne dust, poisonous and harmful substance to be removed.The quality of the malicious box of influence filter also depends on its aperture ash discharge ability, so extremely important to the aperture ash discharge test of filtering malicious box.Because the malicious box specification of various filters is different, needs suitable piece and counts clamper for disassembling.

Summary of the invention

The objective of the invention is to defective, a kind of anchor clamps of filtering on the malicious box aperture ash discharge experimental rig are provided, fix so that can filter malicious box to multiple different size to the prior art existence.

For achieving the above object, design of the present invention is:

A kind of test fixture comprises ventilating mechanism and clamp mechanism, it is characterized in that, ventilating mechanism one end connects the air source of the gas, and air-flow is discharged from the outlet of the other end through filtering malicious box, guarantees the sealing of gas circuit simultaneously.Clamp mechanism will be filtered malicious box and had good positioning and clamp.

Above-mentioned ventilating mechanism is a ventilating mechanism according to claim 1; It is characterized in that the inner source of the gas of described air inlet termination; Have sealing ring and the malicious box of filter to fit tightly on the air inlet storehouse, outlet side and the gas turbulator of filtering malicious box join, and have sealing ring and the malicious box of filter to fit on the gas turbulator.

Above-mentioned clamp mechanism is a clamp mechanism according to claim 1, it is characterized in that described pinching screw screws in the slide block, and a domatic end that props up jaw of slide block, the other end of jaw prop up the malicious box of filter.The adjusting knob driven gear, with gear matched be under the gas turbulator dress tooth bar.

According to the foregoing invention design, the present invention adopts following technical proposals:

A kind of aperture ash discharge test fixture of filter canister includes fixture stand, ventilating mechanism and clamp mechanism, it is characterized in that; Said ventilating mechanism is: an air inlet warehouse is fixedly connected with fixture stand and is integral; The inlet suction port that fixed connection is arranged on one side of this air inlet warehouse, the inner source of the gas of this inlet suction port call through test device, the inlet end of the another side of air inlet warehouse and filter to be tested poison box is fitted; This is fitted with sealing ring fits tightly it; The outlet side of the malicious box of said filter and an end of a gas turbulator join, and have sealing ring that it is fitted tightly in the joint, and the other end of this gas turbulator has end cap to connect atmosphere; Said clamp mechanism is: one revolves the pinching screw top of joining with fixture stand and screws in a slide block and promote this slide block; A domatic end that props up a jaw of this slide block; The other end of this jaw props up the outlet side of the malicious box of said filter, and malicious box of filter and said air inlet warehouse are fitted, and slide block is slidingly mounted in the chute in the fixture stand; The middle part of said jaw is rotationally connected with a fixed axis that is fixedly mounted on the fixture stand; The end that said jaw props up the malicious box of filter is equipped with a back-moving spring, makes an end of jaw can prop up the domatic of slide block all the time, a tooth bar fixedly is housed below the described gas turbulator; This tooth bar and a gears engaged, this gear and coaxial being installed on the fixture stand of adjusting knob.

The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art: this device has simply, reliable advantage; These anchor clamps carry swirler, and use the part of swirler as clamp mechanism, and jaw is arranged, sealing ring in the cooperation, and good seal performance is located more accurate.These anchor clamps also can be clamped the filter poison box of other shapes simultaneously, have very strong adaptability.Cooperate the fast clamp joint on the malicious box aperture ash discharge experimental rig of filter simultaneously, can realize connecting fast fast quick-detach.

Description of drawings

Fig. 1 is the malicious box inlet end sketch map of filter

Fig. 2 is the malicious box of filter outlet side sketch map

Fig. 3 is the malicious box anchor clamps assembling of filter outline drawing

Fig. 4 is the malicious box anchor clamps installation diagram of filter

The specific embodiment

A preferred embodiment of the present invention combines detailed description of the drawings following: referring to Fig. 1, Fig. 2 and Fig. 3.These anchor clamps comprise fixture stand 6, ventilating mechanism and clamp mechanism.Above-mentioned ventilating mechanism comprises inlet suction port 7, air inlet warehouse 8,

sealing ring

9,11, gas turbulator 12, end cap 13.Inlet end 7 is integral with air inlet warehouse 8 and connects the inner source of the gas of experimental rig; There are sealing ring 9 and the malicious box 10 of filter to fit tightly on the air inlet warehouse 8; Outlet side and gas turbulator 12 1 ends of filtering malicious box 10 join; Have the malicious box 10 of sealing ring 11 and filter to fit in the joint, the other end of gas turbulator 12 has end cap 13, and gas circuit is discharged gas through end cap 13.

Clamp mechanism comprises that pinching screw 5 screws in the slide block 4, and a domatic end that props up jaw 3 of slide block 4, the other end of jaw 3 prop up the malicious box 10 of filter.This slide block 4 is installed in the chute 17 in the fixture stand 6, and an adjusting knob 15 drives a gear 14, with these gear 14 engagements be a toothed rack of 12 times dresses of gas turbulator.Air inlet warehouse 8 is fixed on the fixture stand 6, and jaw 3 is rotatably installed on the fixed axis 1, and fixed axis 1 is fixedly mounted on the fixture stand 6, and back-moving spring 2 is housed on the other end of jaw 3.

Operation principle of the present invention: inlet end (like Fig. 1) end face that will filter malicious box earlier is close to positioning table, and turn binding nut 5, binding nut 5 promote slide block 4 and move to jaw 3 directions.Receive slide block 4 domatic effect jaws 3 and rotate, thereby the other end of jaw 3 will be filtered malicious box 10 clampings around fixed axis 1.The effect of back-moving spring 2 is to make an end of jaw 3 be close to the domatic of slide block 4 in this process.Turn adjusting knob 15, knob driven gear 14, the tooth bar 16 that gear 14 drives gas turbulator 12 belows moves forward, and makes gas turbulator 12 compress the malicious box of filter 10 outlet sides.Inlet suction port 7 and end cap be connected in the gas circuit on the malicious box aperture ash discharge experimental rig of filter can carry out the aperture ash discharge experiment.

Claims

1. an aperture ash discharge test fixture of filter canister includes fixture stand (6), ventilating mechanism and clamp mechanism, it is characterized in that:

A. said ventilating mechanism is: an air inlet warehouse (8) is fixedly connected with fixture stand (6) and is integral; The inlet suction port (7) that fixed connection is arranged on one side of this air inlet warehouse (8); The inner source of the gas of this inlet suction port (7) call through test device; The inlet end of the another side of air inlet warehouse (8) and filter to be tested poison box (10) is fitted, and this is fitted with sealing ring (9) fits tightly it, and an end of the outlet side of the malicious box of said filter (10) and a gas turbulator (12) joins; Have sealing ring (11) that it is fitted tightly in the joint, the other end of this gas turbulator (12) has end cap (13) to connect atmosphere;

B. said clamp mechanism is: one revolves pinching screw (5) top of joining with fixture stand (6) and screws in a slide block (4) and promote this slide block (4); A domatic end that props up a jaw (3) of this slide block (4); The other end of this jaw (3) props up the outlet side of the malicious box of said filter (10); Malicious box of filter (10) and said air inlet warehouse (8) are fitted; Slide block (4) is slidingly mounted in the chute (17) in the fixture stand (6), and the middle part of said jaw (3) is rotationally connected with a fixed axis (1) that is fixedly mounted on the fixture stand (6), and the end that said jaw (3) props up the malicious box of filter (10) is equipped with a back-moving spring (2); Make an end of jaw (3) can prop up the domatic of slide block (4) all the time; A tooth bar (16) fixedly is housed below the described gas turbulator (12), this tooth bar (16) and a gear (14) engagement, this gear (14) is installed on the fixture stand (6) with an adjusting knob (15) is coaxial.