CN207937126U - A kind of product special-shaped surfaces air-leakage test portable equipment - Google Patents
A kind of product special-shaped surfaces air-leakage test portable equipment Download PDFInfo
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- CN207937126U CN207937126U CN201721440899.4U CN201721440899U CN207937126U CN 207937126 U CN207937126 U CN 207937126U CN 201721440899 U CN201721440899 U CN 201721440899U CN 207937126 U CN207937126 U CN 207937126U
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Abstract
A kind of product special-shaped surfaces air-leakage test portable equipment, belongs to air-leakage test field；Including connection chamber (1), vacuum chamber (2), vacuum pump (4), control device (6) and body frame (3)；It includes sealing room (10), operating room (11), stationary fixture (12) to couple chamber；For vacuum chamber containing vacuum chamber (26), measuring chamber (34), monitoring room (24), vacuum meter is respectively set in three Room；The break-make that valve controls access between each room, vacuum pump is respectively set；Control device realizes check problem by reading the break-make of vacuum meter signal and control valve；Vacuum pump provides required vacuum environment；Vacuum chamber, vacuum pump, control device and each valve, pipeline are placed in body frame, and connection chamber is placed in outside it and is closely placed on product detected part periphery and couples vacuum chamber by vacuum flange.The prior art is compared, the present apparatus is compact-sized, easy to operation, detection efficiency is high, it can be achieved that being difficult to the air tight test of product under totally enclosed type detection case.
Description
Technical field
The utility model is related to a kind of air-leakage test equipment, more particularly to a kind of product special-shaped surfaces air-leakage test is just
Formula equipment is taken, finished product special-shaped surfaces air tight test is used for, belongs to air-leakage test technical field,
Background technology
During finished product storage, the sealing performance of product external packaging directly affects the reliability that product stores for a long time.
The case where to prevent product from failing due to outer packing gas leakage, product integrality (air-tightness) detection obtain wide in production
General application.But due to the limitation of technical conditions, currently full enclosed is mostly used for all-sealed product integrity detection and detected
Equipment is detected products air tightness, or only carries out the gas tightness detection of semi finished package, and can not also be directed to has one
The product for determining volume carries out the air tight test of finished product.Due to not having equipment to be detected, a considerable amount of products are produced at it
Often holiday detection content in technique, this necessarily introduces certain quality risk, influences the reliability of product storage.Cause
This, it will be that product integrality (air-tightness) examines the weight considered to research and develop a kind of product special-shaped surfaces air-leakage test portable equipment
Want project.It is adapted to use negative pressure method for the equipment that product external surfaces carry out air tight test, but how certain for having
It is phase key technical problem to be solved in industry that volume and the fixed product external surfaces of shape, which carry out air tight test,.First,
Air-leakage test is carried out for the product surface with certain volume to be difficult to use all-sealed detection device, it is necessary to take needle
To the equipment of product local surfaces detection.However, product variety to be detected is complicated, each product external surfaces pattern is different, even
Certain partially sealed positions of product are peculiarly shaped.Air-leakage test, detecting instrument and product are carried out for product part outer surface
The density of surface engagement also influences the reliability of air-leakage test, this some effects must be in air-leakage test result
It embodies.Furthermore the case where being produced in batches due to product, it is desirable that product each Check-Out Time is of short duration.Meanwhile product storage environment thousand
Poor ten thousand are not, some product testing environment are difficult to enter large scale equipment, some detection environmental requirements have certain requirement of shelter.Cause
This, develops that kind of detection device realizes products air tightness detection, and require equipment operation is convenient, detection quickly, conclusion it is accurate,
With comparable environmental suitability, these all have certain challenge.Currently, not finding a kind of suitable special work also both at home and abroad
Finished product special-shaped surfaces air-leakage test portable equipment under condition.
Invention content
The purpose of this utility model is to solve the above problems, and proposes a kind of portable dress of product special-shaped surfaces air-leakage test
It is standby, it is used for finished product special-shaped surfaces air tight test.
The utility model aim is achieved through the following technical solutions.
A kind of product special-shaped surfaces air-leakage test portable equipment, including connection chamber, vacuum chamber, vacuum pump, control dress
It sets and body frame；
Connection chamber is used to couple the tested position of product to be measured and is tested position with product to be measured builds closed quilt jointly
Survey space；It is by sealing room, operating room, stationary fixture and being formed respectively with the vacuum line for sealing room, operating room is connected；Sealing
Room is used to detect the sealing effect of operating room, and operating room is used to test the air-tightness that product to be measured is tested position, and stationary fixture is used
It is tested position in operating room, sealing room are seated in product to be measured；
Vacuum chamber is used to build the vacuum environment needed for air-leakage test process；It contains vacuum chamber, measuring chamber, monitoring
Vacuum meter is respectively set to measure the vacuum pressure in vacuum meter place space in room, vacuum chamber, measuring chamber, monitoring room；Vacuum chamber
Vacuum environment for quickly building air-leakage test, measuring chamber are used for for detecting the indoor vacuum pressure of work, monitoring room
Detection seals indoor vacuum pressure；
Vacuum pump is for making and maintaining the vacuum environment needed for air-leakage test；
Control device is used to execute air-leakage test program and calculates, judges the air-tightness state of product to be measured；
Body frame is by rational topology layout for fixing vacuum chamber, vacuum pump, control device and connection connection chamber
And play the role of foundation support；Its structure is measured according to reality to be needed to design production, as long as meeting its function, moving, just
In carrying.
The vacuum chamber, vacuum pump, control device are fixedly installed in body frame, and connection chamber is placed in except body frame
And connected by vacuum flange, operating room is communicated with measuring chamber, vacuum chamber respectively with measuring chamber, monitoring room communicate, vacuum chamber with
Vacuum pump is connected, and communicates between each room and is connected by vacuum tube between vacuum chamber, vacuum pump, every vacuum tube pipeline it is appropriate
Valve is arranged in position, and the break-make of vacuum tube pipeline is controlled by valve；Sealing room is communicated with monitoring room, operating room with measuring chamber
Vacuum tube disconnects at the vacuum flange that connection chamber, vacuum chamber connect, and the company for realizing the vacuum tube is connected by vacuum flange
It connects；Each vacuum tube, each valve that are connected with vacuum chamber, vacuum pump are all fixed on the appropriate location in body frame；The control
Device is connected by signal wire with each vacuum meter and each valve, and realizes air tight test program according to operational order.
Preferably, the sealing room, operating room in the connection chamber are fixed together, sealing room is socketed operating room, the two
The same end is open end, and open end is to be bonded completely with product testing position outer surface；Operating room's opening shape should be with production to be measured
The tested position of product is corresponding, and sealing room is in operating room periphery and around operating room, and two Room separate completely；The stationary fixture
It is integrally formed with sealing room, operating room, stationary fixture ensures that sealing room, operating room take out very no according to product design to be measured
It may be mounted at the tested position of product to be measured when empty；Sealing room, operating room are picked out simultaneously by the vacuum tube respectively connected respectively
It is connected respectively to the separating end of corresponding vacuum flange；In practical application, couple the sealing room of chamber, operating room open end shape, work
Make concrete condition design, the manufacture of room opening shape and stationary fixture shape according to the i.e. tested position of product to be measured.
Preferably, sealing room, operating room's interval and sealing outdoor enclose and all dispose sealing element, when sealing room, work
When room is bonded with product to be measured, sealing element plays sealing function, and sealing room, operating room are inhaled with product to be measured by negative pressure of vacuum
It closes and forms containing vacuum space；It seals vacuum space contained by room, operating room to be designed according to air-leakage test required precision, on an equal basis
In the case of answer it is as small as possible, in order to improve the sensitivity of air-leakage test.
Preferably, the vacuum flange is two, each vacuum flange is divided into fixing end and mobile terminal two parts, Gu
Fixed end is fixed in body frame and is quickly connect convenient for being realized with mobile terminal；One of vacuum flange mobile terminal connection sealing
The vacuum tube that room is drawn, fixing end are connected with the vacuum tube that monitoring room is drawn；Another vacuum flange mobile terminal connects operating room
The vacuum tube of extraction, fixing end are connected with the vacuum tube that measuring chamber is drawn；When the mobile terminal of vacuum flange is connect with fixing end,
Connect measuring chamber vacuum tube and connect operating room vacuum tube formed vacuum passage, connect monitor room vacuum tube with connect it is close
The vacuum tube for sealing room forms vacuum passage, mutual not unicom between two accesses, while access is isolated from the outside world；Vacuum flange fixing end
Designed according to actual condition with the connection type of mobile terminal, quickly connected convenient for the two and realize between the connection of access and access and
Being isolated between access and the external world.
Preferably, the measuring chamber, the monitoring interior space in vacuum chamber are relatively small according to air-leakage test required precision,
And the vacuum interior space is measuring chamber, monitors the several times of the interior space, specific multiple should be according to the initial vacuum set when measuring
Room vacuum degree, time of measuring determine；Control vacuum chamber and the valve of measuring chamber, vacuum chamber and monitoring room interlinking are placed in respectively
Measuring chamber, monitoring room side, and as close to measuring chamber, monitoring room.
Preferably, the vacuum pump is a set of vacuum pump group for requiring to determine according to accuracy of detection, examined for air-tightness
Vacuum environment needed for providing is provided；Pump housing combination in vacuum pump group is according in the vacuum chamber required by air-leakage test precision
Vacuum level requirements determine that corresponding type and its composition, the model of the pump housing are true according to the time requirement of vacuum chamber
It is fixed；The pump housing in vacuum pump group selects volume compared with ting model under the situation for meeting actual requirement.
Preferably, the control device includes electric cabinet, LED billboard, control panel, electric cabinet for provide power supply,
Air-leakage test program is executed, LED billboard is for monitoring air-leakage test process and display air-leakage test as a result, control panel
It works for manual control air-leakage test, electric cabinet is connected by power cord, data line with LED billboard, control panel, electricity
Source line is used for electrical transmission to LED billboard, control panel and the two is driven to work normally, and data line is seen for electric cabinet with LED
Data-signal between plate, between electric cabinet and control panel interacts, the concrete form of control device according to actual condition design,
It makes；Central processing unit in electric cabinet is connected with vacuum meter and valve respectively by signal wire, and central processing unit is embedded
Control program counts for reading vacuum, the on and off of control valve, executes calculation procedure and compare evaluation criteria judgement and wait for
Survey the air-tightness of product；The body frame is made of babinet and movable pulley, and vacuum chamber, true is placed in point functional areas respectively in babinet
Sky pump, control device and other parts；Guard screen, data line, signal wire and power cord is arranged in each function section in babinet
Cabling is arranged to protect, guard screen and box-like body set electrostatic isolation device.
Preferably, the embedded control program of central processing unit in electric cabinet, air-tightness inspection is realized by control valve
The flow of survey, the signal by picking up and analyzing vacuum meter judge the air-tightness of product sealing to be measured；Detailed process is as follows：
Then the control instruction that control device is sent out according to control panel cuts off vacuum pump first by vacuum chamber
Access between group and vacuum chamber simultaneously opens vacuum chamber and the valve that monitors between room will monitor room, sealing room and vacuumize, and works as monitoring
Data measured by indoor vacuum meter are kept for a period of time then prove that sealing room is working properly without changing, and then cut off vacuum
Room with monitoring room access and measuring chamber, operating room are vacuumized, the access being then switched off between vacuum chamber and measuring chamber and
A period of time is stood, the tested position of product to be measured is illustrated if the data that the vacuum meter in measuring chamber measures do not change
Air-tightness is good, otherwise illustrates that the air-tightness of product to be measured is bad and can survey product leakage to be measured at this time and is being surveyed to work indoor gas
Shared volume indicates Q under the atmospheric pressure obtainedProduct, calculation formula is：
Wherein
If result of calculation QIt is close to connection<0m3, then illustrate that gas is leaked from connection chamber to seal chamber；In formula, PJoin, is steadyFor cut-out
Indoor vacuum pressure, P are measured when vacuum chamber is with measuring chamber accessIt is close, afterFor cut-out vacuum chamber and monitor room between access and
Indoor vacuum pressure, the T measured is monitored after standing a period of timeIt surveysFor cut-out vacuum chamber and monitoring stand after access between room when
Between, QConnectionFor measuring chamber and swept volume of a single chamber and PConnection, afterFor cut-out vacuum chamber and measuring chamber between access and stand one section when
Between after the vacuum pressure, the P that measure in measuring chamber0For measure atmospheric pressure value, VtpFor the pressure difference between sealing room and operating room
Slip, calculation formula are：
Wherein PConnection is surveyedVacuum pressure, the P measured in measuring chamber before access between cut-out vacuum chamber and monitoring roomJoin, is precedingFor prison
Survey vacuum pressure, the P measured in measuring chamber before room vacuumizesClose, surveyThe indoor vacuum pressure measured is monitored after being vacuumized for monitoring room
Power, TIt is closeThe time stood after access between cut-out vacuum chamber and measuring chamber.
Preferably, after vacuum chamber is evacuated, the vacuum pressure measured in vacuum chamber under working condition needs to ensure
It is fluctuated in certain working range, which need in advance give according to test product testing requirements, true under working condition
Empty indoor vacuum pressure allowance fluctuation range is different and different according to product category to be measured difference and products air tightness requirement, when
It, can be indoor true by vacuum by control valve and vacuum pump group when vacuum pressure in vacuum chamber is more than the fluctuation range permitted
Pneumatics power adjusts in defined vacuum pressure range；It needs respectively to stand one after monitoring room and measuring chamber form vacuum environment
The section time, the length of the time of repose need in advance give according to test product testing requirements, different types of product to be measured and not
Same quality requirement can all use different time of repose；When monitoring room and measuring chamber form vacuum environment and stand a period of time
Afterwards, monitoring room need to be observed or measure the situation of change of indoor vacuum pressure, given in advance when the situation of change of vacuum pressure is less than
Then think that the vacuum pressure does not change when definite value, which determines according to test product testing requirements, different tests
Environment, different types of product to be measured will all influence the size of the given value.
Preferably, when judge product to be measured under measuring condition there are when gas leakage, by by QProductIt is given with prior
Performance rating standard carry out the judgement that comparison obtains the quality condition of products air tightness to be measured, the performance rating standard according to
The difference of product category to be measured is preset.
Advantageous effect
The prior art is compared, the utility model is suitble to realize that product integrality (air-tightness) is examined under various detection operating modes
It surveys, from air-leakage test of the equipment especially suitable for the complete product special-shaped surfaces with certain volume known to obtained characteristic.
The utility model is compact-sized, is easy to carry about with one, the operation being suitable under different operating modes, and be lost it is low, efficient,
It is easy to operation.The equipment of the utility model has fully taken into account electrostatic protection, it can be achieved that the product under some particular surroundings is airtight
Property Detection task.
Description of the drawings
Fig. 1 is a kind of product special-shaped surfaces air-leakage test portable equipment structural schematic diagram；
Fig. 2 is the three-dimensional shaft side fission schematic diagram for coupling chamber in Fig. 1；
Fig. 3 is connecting cavity partial enlarged view in Fig. 2；
Fig. 4 is the overall procedure that equipment is run in Fig. 1；
Wherein, 1- couples chamber, 2- vacuum chambers, 3- body frames, 4- vacuum pumps, 6- control devices, 10- sealings room, 11-
Operating room, 12- stationary fixtures, 13- sealing elements A, 14- sealing element B, 15- vacuum flange A, 16- vacuum flange B, 17- valve
Door C, 18- control panels, 19- vacuum meters C, 20- valve D, 21- vacuum meter D, 22-LED billboard, 23- electric cabinets, 24- monitorings
Room, 25- vacuum meters E, 26- vacuum chamber, 27- valves E, 28- vacuum pump group, 29- movable pulleys, 30- babinets, 31- valves F, 32-
Valve G, 33- valve H, 34- measuring chamber, 35- top nuts, the upper lefts 36- boss, the upper bolts of 37-, 38- upper right boss, 39- are left
Seal room, the right sealing rooms 40-, 41- seals room connection holes, the bottom rights 42- boss, bolt under 43-, 44- lower nuts, and the lower-lefts 45- are convex
Platform, 46- connectors A, 47- connector B.
Specific implementation mode
Preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
Product to be measured in the present embodiment is cylindrical two-piece unit structure, is tested the engaging portion that position is two-piece unit,
The shape at tested position is circle, volume 0.1m3。
As shown in Figure 1, a kind of product special-shaped surfaces air-leakage test portable equipment, main includes connection chamber 1, vacuum chamber
2, vacuum pump 4, control device 6 and body frame 3, and it is related for measuring the vacuum meter of vacuum pressure, for connecting each chamber
Pipeline and valve for pipeline break-make.
Connection chamber 1 is used to couple the tested position of product to be measured and is tested position with product to be measured builds closed quilt jointly
Survey space, connection chamber 1 structure design be can flat type cylindrical-shaped structure that is split, having endoporus, internal diameter size just with production to be measured
Product cylinder matching size；Couple chamber 1 by seal room 10, operating room 11, stationary fixture 12 and respectively with sealing room 10, operating room 11
Connected vacuum line composition, sealing room 10 are used to detect the sealing effect of operating room 11, and operating room 11 is for testing production to be measured
Product are tested the air-tightness at position, and stationary fixture 12, which is used to operating room 11, sealing room 10 being seated in product to be measured, is tested position；Such as
Shown in Fig. 2 and Fig. 3, sealing room 10 is by left sealing room 39, right sealing room 40 and by left sealing room 39, right sealing room 40 unicom
It seals room connection holes 41 to form, connector A46 endoporus makes with 41 unicom of room connection holes and connecting with vacuum tube by screw thread is sealed
Unicom space extends to the mobile terminals vacuum flange B16；Operating room 11 is placed between left sealing room 39 and right sealing room 40, work
The tested position of product to be measured need to be covered completely by making the covering space of room 11, and connector B47 endoporus is directly connected to operating room 11 and leads to
Crossing screw thread and being connect with vacuum tube makes unicom space extend to the mobile terminals vacuum flange A15；Seal room 10,11 end face of operating room
Section is circle, and two Room inside circumferences are open space and tested position is bonded, thickness just makes operating room with product to be measured
11 coverings are tested position, sealing room 10,11 interval of operating room and sealing room 10 and peripheral junction dispose sealing element A13 and
Sealing element B14, sealing element A13 and sealing element B14 all select sealing rubber ring；Stationary fixture 12 include upper left boss 36,
Lower-left boss 45, upper right boss 38, bottom right boss 42 and top nut 35, upper bolt 37, lower nut 44, lower bolt 43；According to connection
The overall structure of chamber 1 is connect, sealing room 10, operating room 11 are all to split around form, and stationary fixture 12 can pass through 35 He of top nut
Upper bolt 37, lower nut 44 and lower bolt 43 are fixed on merging by room 10, operating room 11 is sealed at the tested position of product to be measured
On.
Vacuum chamber 2 is used to build the vacuum environment needed for air-leakage test process, and vacuum chamber 2 includes vacuum chamber 26, measures
Room 34, monitoring room 24, measuring chamber 34 and 11 volume of operating room and QConnection=0.002m3, sealing room 10 and monitor room 24 volume and
QIt is close=0.002m3, 26 volume Q of vacuum chamberVery=0.01m3；Vacuum chamber 26, measuring chamber 34, monitoring 24 three of room are all outside cylinder
It sees, vacuum meter E25, vacuum meter C19, vacuum meter D21 is respectively set, vacuum meter selects diagram vacuum gauge CTR100N；Seal room 10
It is communicated with monitoring room 24, operating room 11 is communicated with measuring chamber 34, and vacuum chamber 26 is communicated with measuring chamber 34, monitoring room 24 respectively, very
Empty room 26 is connected with vacuum pump group 28；It communicates between each room and is connected by vacuum tube between vacuum chamber 26, vacuum pump group 28, very
It is 10mm vacuum tubes, appropriate location setting valve C 17, valve D 20, the valve of every vacuum tube pipeline that blank pipe diameter, which selects internal diameter,
Door G 32, valve H 33, valve E27 control vacuum by valve C 17, valve D20, valve G 32, valve H 33, valve E27
The break-make of pipe pipeline, valve all select electric controlled vacuum valve, model 616G-P-11-2240TT.
Vacuum pump 4 is actually a set of vacuum for making and maintaining the vacuum environment needed for air-leakage test, vacuum pump 4
Pump group 28；It is wanted according to the vacuum degree in the vacuum chamber 26 required by air-leakage test precision and time that vacuum chamber 26 vacuumizes is wanted
It asks, for the vacuum pump group 28 of the present embodiment there are one the pump housing, pump housing type selects D16C vacuum pumps；It is arranged at vacuum pump group 28 1
Valve F31, valve F31 are the safety valve of vacuum pump group 28, select electric controlled vacuum valve, model 616G-P-11-2240TT.
Control device 6 is used to execute air-leakage test program and calculates, judges the air-tightness state of product to be measured, including electricity
Control case 23, LED billboard 22, control panel 18；Central processing unit and its circuit built in electric cabinet 23 pass through signal wire, control
Line is connected with vacuum meter, valve, selects acp chip of the C51 microcontrollers as central processing unit；LED billboard 22 selects spark
42 cun of touch screens of XH-LD9242；Comprising control button, switch, display lamp etc. on control panel 18, control button includes being used for
It controls the inching button of each valve manual vacuum operation, the start button started for program, pressed for the emergent of emergency stop
Button, switch include power switch, the manual-automatic switch controlled for power supply, and display lamp includes being used to indicate work shape
The green display lamp of state, the yellow display lamp for being used to indicate waiting (shutdown) state, the red instruction for being used to indicate malfunction
Lamp.
Body frame 3 is used for the maintenance support placement body as other components, and vacuum chamber 2, vacuum are placed in body frame 3
Pump 4, control device 6；Body frame includes babinet 30 and movable pulley 29, moves, is easy to carry, and babinet 30 is in cuboid knot
Structure is vertically divided into five functional areas in babinet 30, places vacuum pump group 28, vacuum chamber 26,34 and of measuring chamber respectively from bottom to up
Room 24, electric cabinet 23, LED billboard 22 and control panel 18 are monitored, guard screen, electric cabinet 23, LED is arranged in each function section
Billboard 22, control panel 18 and data line, signal wire, power cord setting cabling between each vacuum meter, each valve are protected, and are prevented
Shield partition board and 30 ontology of babinet set electrostatic isolation device；30 side of babinet is installed by the fixation of vacuum flange B16 and vacuum flange A15
End, vacuum flange B16 and the mobile terminals vacuum flange A15 are then communicated with sealing room 10 with operating room 11 by vacuum tube respectively, very
The fixing end of empty flange B16 and vacuum flange A15 is connected through a screw thread with mobile terminal, after connection, connection chamber 1 and body frame 3
It is connected, so that sealing room 10 is with monitoring, room 24 communicates pipeline, operating room 11 communicates pipeline with measuring chamber 24 and is connected.
As shown in figure 4, the embedded control program of central processing unit in the electric cabinet 23, is realized by controlling each valve
The flow of air-leakage test, the signal by picking up and analyzing vacuum meter judge the air-tightness of product sealing to be measured；Control device 6
According to control instruction, first turns on valve E27 and start vacuum pump group 28 and vacuumize vacuum chamber 26, the indoor vacuum pressure of vacuum
Power is PVery=0.01MPa is simultaneously maintained in 1% variation range, can maintain vacuum by control valve F31 and vacuum pump group 28
House vacuum pressure, the vacuum pressure measured in monitoring room 24 at this time is equal with atmospheric pressure, i.e. PJoin, is preceding=P0=0.1MPa, so
Afterwards close valve E27 and open valve G32, valve D20 will seal room 10, monitoring room 24 vacuumize, at this time monitor room 24 measure
Vacuum pressure be PClose, surveyData measured by=0.024MPa, gauge D21 do not have after being kept for a period of time T (5 minutes)
Change then proves that sealing room 10 is working properly, is then shut off valve G32 and Open valve H33, valve C17 by measuring chamber 34, work
Make room 11 to vacuumize, the vacuum pressure measured in operating room 11 at this time is PConnection is surveyed=0.1MPa is then switched off valve H33, at this time
Vacuum pressure P in measuring chamber 34Join, is steady=0.036MPa stands a period of time TIt surveys(5 minutes), if measured by vacuum meter C19
Data do not change, it is good to illustrate that test product is tested position air-tightness, otherwise illustrates test product there are gas leakage,
It is P to monitor at this time and measure vacuum pressure in room 24It is close, afterVacuum pressure P in=0.024MPa, measuring chamber 34Connection, after=0.036MPa,
Time span T and TIt surveysIt is all preset according to product category to be measured, is respectively 5 minutes in the present embodiment；Calculate sealing room 10 with
Pressure differential leakance rate V between operating room 11tpFor：
Product measuring point to be measured quantity of gas leakage is calculated in standard atmospheric pressure P0When volume be
Wherein
Because of the tested position gas leakage volume Q of product to be measuredProductLess than the 5% of test product volume, product to be measured is judged
The air-tightness at tested position meets examination criteria requirement.
Above-described specific descriptions have carried out further in detail the purpose, technical solution and advantageous effect of utility model
It describes in detail bright, it should be understood that the foregoing is merely specific embodiment of the utility model, is not used to limit this practicality
Novel protection domain, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included in the scope of protection of the utility model.
Claims (6)
1. a kind of product special-shaped surfaces air-leakage test portable equipment, it is characterised in that：Including connection chamber (1), vacuum chamber
(2), vacuum pump (4), control device (6) and body frame (3)；
Connection chamber is used to couple the tested position of product to be measured and is tested position with product to be measured builds closed tested sky jointly
Between；It is by sealing room (10), operating room (11), stationary fixture (12) and the vacuum line being connected respectively with sealing room, operating room
Composition；Sealing room is used to detect the sealing effect of operating room, and operating room is used to test the air-tightness that product to be measured is tested position, Gu
Clamp tool is tested position for operating room, sealing room to be seated in product to be measured；
Vacuum chamber is used to build the vacuum environment needed for air-leakage test process；It contains vacuum chamber (26), measuring chamber (34), prison
It surveys room (24), vacuum meter is respectively set to measure the vacuum pressure in vacuum meter place space in vacuum chamber, measuring chamber, monitoring room；
Vacuum environment of the vacuum chamber for quickly building air-leakage test, measuring chamber are monitored for detecting the indoor vacuum pressure of work
Room seals indoor vacuum pressure for detecting；
Vacuum pump is for making and maintaining the vacuum environment needed for air-leakage test；
Control device is used to judge the air-tightness state of product to be measured；
Body frame is for fixing vacuum chamber, vacuum pump, control device and connection connection chamber and playing the role of foundation support；
The vacuum chamber, vacuum pump, control device are fixedly installed in body frame, and connection chamber is placed in except body frame and leads to
Vacuum flange connection is crossed, operating room is communicated with measuring chamber, and vacuum chamber is communicated with measuring chamber, monitoring room respectively, vacuum chamber and vacuum
Pump is connected, and communicates between each room and is connected by vacuum tube between vacuum chamber, vacuum pump, the appropriate location of every vacuum tube pipeline
Valve is set, and controls the break-make of vacuum tube pipeline by valve；Sealing room and the vacuum for monitoring room, operating room is communicated with measuring chamber
Pipe disconnects at the vacuum flange that connection chamber, vacuum chamber connect, and the connection for realizing corresponding vacuum tube is connected by vacuum flange；With
The connected each vacuum tube of vacuum chamber, vacuum pump, each valve are all fixed on the appropriate location in body frame；The control device is logical
Signal wire is crossed with each vacuum meter and each valve to be connected.
2. a kind of product special-shaped surfaces air-leakage test portable equipment according to claim 1, it is characterised in that：It is described
Sealing room, the operating room connect in chamber is fixed together, and sealing room is socketed operating room, and the two the same end is open end, and open end is
It is bonded completely with product testing position outer surface；Operating room's opening shape should be corresponding with the tested position of product to be measured, sealing
Room is in operating room periphery and around operating room, and two Room separate completely；The stationary fixture constitutes one with sealing room, operating room
Body ensures that sealing room, operating room may be mounted at the tested position of product to be measured when not vacuumizing；Seal room, operating room
The separating end of corresponding vacuum flange is picked out and is connected respectively to by the vacuum tube respectively connected respectively.
3. a kind of product special-shaped surfaces air-leakage test portable equipment according to claim 2, it is characterised in that：Sealing
Room, operating room's interval and sealing outdoor enclose and all dispose sealing element.
4. a kind of product special-shaped surfaces air-leakage test portable equipment according to claim 1, it is characterised in that：It is described true
Empty flange is two, and each vacuum flange is divided into fixing end and mobile terminal two parts, and fixing end is fixed in body frame simultaneously
It is quickly connect convenient for being realized with mobile terminal；The vacuum tube that one of vacuum flange (16) mobile terminal connection sealing room is drawn, Gu
Fixed end is connected with the vacuum tube that monitoring room is drawn；Another vacuum flange (15) mobile terminal connects the vacuum tube that operating room is drawn,
Fixing end is connected with the vacuum tube that measuring chamber is drawn；Vacuum flange fixing end and the connection type of mobile terminal should meet convenient for the two
Quickly connects and realize being isolated between the connection of access and access and between access and the external world.
5. a kind of product special-shaped surfaces air-leakage test portable equipment according to claim 1, it is characterised in that：Control is true
The valve of empty room and measuring chamber, vacuum chamber and monitoring room interlinking is placed in measuring chamber, monitoring room side.
6. a kind of product special-shaped surfaces air-leakage test portable equipment according to claim 1, it is characterised in that：The control
Device processed includes electric cabinet (23), LED billboard (22), control panel (18), and electric cabinet is for providing power supply, executing air-tightness inspection
Ranging sequence, LED billboard is for monitoring air-leakage test process and display air-leakage test as a result, control panel is used for manual control
Air-leakage test works, and electric cabinet is connected by power cord, data line with LED billboard, control panel, and power cord is used for will be electric
Be transferred to LED billboard, control panel and both drive works normally, data line is used between electric cabinet and LED billboard, electric cabinet
Data-signal between control panel interacts；Central processing unit in electric cabinet by signal wire respectively with vacuum meter and valve
Door is connected；The body frame is made of babinet (30) and movable pulley (29), and vacuum chamber, true is placed in point functional areas respectively in babinet
Sky pump, control device；Guard screen is arranged in each function section in babinet, and data line, signal wire and power cord setting cabling are protected,
Guard screen and box-like body set electrostatic isolation device.
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| CN201721440899.4U CN207937126U (en) | 2017-10-27 | 2017-10-27 | A kind of product special-shaped surfaces air-leakage test portable equipment |
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| CN201721440899.4U CN207937126U (en) | 2017-10-27 | 2017-10-27 | A kind of product special-shaped surfaces air-leakage test portable equipment |
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| CN207937126U true CN207937126U (en) | 2018-10-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796571A (en) * | 2017-10-27 | 2018-03-13 | 辽沈工业集团有限公司 | A kind of product special-shaped surfaces air-leakage test portable equipment |
| CN109406134A (en) * | 2018-12-11 | 2019-03-01 | 九川真空科技成都有限公司 | Particle falls off the system of quantity during a kind of detection valve working |
| CN107796571B (en) * | 2017-10-27 | 2024-04-12 | 辽沈工业集团有限公司 | Portable equipment for detecting air tightness of special-shaped surface of product |
-
2017
- 2017-10-27 CN CN201721440899.4U patent/CN207937126U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796571A (en) * | 2017-10-27 | 2018-03-13 | 辽沈工业集团有限公司 | A kind of product special-shaped surfaces air-leakage test portable equipment |
| CN107796571B (en) * | 2017-10-27 | 2024-04-12 | 辽沈工业集团有限公司 | Portable equipment for detecting air tightness of special-shaped surface of product |
| CN109406134A (en) * | 2018-12-11 | 2019-03-01 | 九川真空科技成都有限公司 | Particle falls off the system of quantity during a kind of detection valve working |
| CN109406134B (en) * | 2018-12-11 | 2023-09-26 | 九川真空科技成都有限公司 | System for detecting particle falling quantity in valve working process |
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