CN108827550A - Watertight test device - Google Patents
Watertight test device Download PDFInfo
- Publication number
- CN108827550A CN108827550A CN201811101922.6A CN201811101922A CN108827550A CN 108827550 A CN108827550 A CN 108827550A CN 201811101922 A CN201811101922 A CN 201811101922A CN 108827550 A CN108827550 A CN 108827550A
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- pressure head
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- accommodating chamber
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 102
- 238000013022 venting Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of watertight test devices, belong to watertightness test apparatus field, which includes fixing tool, press device and airtight pressure head；Fixing tool is to clamping workpiece for measurement and accommodates liquid；Airtight pressure head has the venting cavity being connected to by admission line with air feed equipment；Seal groove is set around the accent of venting cavity, is provided with sealing ring in seal groove, for airtight pressure head in contact measured workpiece, the sealing ring being arranged in seal groove is to venthole peripheral seal；Airtight pressure head is connect with press device, press device can drive airtight pressure head to move towards the venthole direction close to or far from workpiece for measurement, to make airtight pressure head be connected to the venthole of workpiece for measurement, gas is passed through into workpiece for measurement, workpiece for measurement air pressure inside is set to be greater than outside liquid pressure, to judge workpiece for measurement air leak position.
Description
Technical field
The present invention relates to watertightness test apparatus fields, and in particular to a kind of watertight test device.
Background technique
Such as there is radar the industrial part of cavity usually to carry out to it after processing is completed to guarantee its quality at present
Watertightness detection, the problem of to prevent part from intaking in use.Detection mode is generally and puts the workpiece at present
In the liquid of certain depth, after a certain period of time, workpiece is taken out, whether observation inside workpiece enters liquid, to judge that workpiece is
It is no that there is leak hole.Once workpiece has leak hole, liquid will go into the electronic device inside inside workpiece and then defective work piece, because
This, current watertightness test mode is simultaneously impracticable.
Summary of the invention
The purpose of the present invention is to provide a kind of watertight test device, which can solve the prior art
Above-mentioned deficiency, can detect workpiece for measurement air-tightness while ensure workpiece for measurement inside will not enter liquid, ensure to
Survey the safety of the electronic device of inside workpiece.
Based on above-mentioned purpose, watertight test device provided by the invention, including：Fixing tool, press device and airtight pressure
Head；
The fixing tool is to clamping workpiece for measurement and can accommodate liquid；
The airtight pressure head has venting cavity, and the cavity wall of the venting cavity is connected to by admission line with air feed equipment；It encloses
Seal groove is set around the accent of the venting cavity, is provided with sealing ring in the seal groove；The airtight pressure head is in contact measured
When workpiece, the sealing ring of setting is to the peripheral seal of the venthole of workpiece for measurement so that the venting cavity passes through in the seal groove
The venthole of workpiece for measurement is passed through gas into workpiece for measurement；
The airtight pressure head is connect with the press device, so that the press device can drive the airtight pressure head court
It is moved to the venthole direction close to or far from workpiece for measurement.
In above-mentioned technical proposal, fixing tool plays clamping workpiece for measurement, and can accommodate liquid to submerge workpiece for measurement
Effect, be in workpiece for measurement in liquid；Press device drives airtight pressure head to be connected to the venthole of workpiece for measurement, to be measured
Gas is passed through in workpiece, so that workpiece for measurement internal gas pressure is greater than fluid pressure, to judge workpiece for measurement gas leakage portion
Position；Meanwhile making to be sealed between airtight pressure head and workpiece for measurement using sealing ring, ensureing may not flow into liquid inside workpiece for measurement
Body damages workpiece for measurement.
Further, direction groove width of the seal groove from slot bottom to notch successively decreases.Above-mentioned structure designs so that close
Seal is compressed in seal groove always, and is not easy to fall, to ensure the leakproofness between airtight pressure head and workpiece for measurement.
Further, one end of the accent of the airtight pressure head far from venting cavity be provided with to connect press device
One connector.
Further, the press device includes mechanical pressure head and driving device, and the driving device has telescopic rod, institute
Stating has the first accommodating chamber in telescopic rod；
The machinery pressure head has the second accommodating chamber to accommodate the first connector, and the machinery pressure head holds far from second
Receiving one end of chamber is provided with the second connector, and second connector is fixed in the first accommodating chamber, in second connector
It is provided with the mounting hole to be connected to the second accommodating chamber and the first accommodating chamber, connector, the company are coated in the mounting hole
Fitting one end is connect with first connector, and the other end is inserted into first accommodating chamber and can accommodate described first
Intracavitary movement is to drive first connector to move in second accommodating chamber.
In above-mentioned technical proposal, since connector one end is connect with the first connector, the other end is inserted into the first accommodating chamber
Interior and can move in the first accommodating chamber, therefore, the first connector airtight pressure head that links relative to mechanical pressure head and can be stretched
Contracting bar is mobile, and airtight pressure head is avoided directly to cause to impact firmly to workpiece for measurement.
Further, there is position-limit mechanism between second accommodating chamber and first connector so that described first connects
Junctor will not be relatively rotated with second accommodating chamber.Convenient for assembly, cylindrical the first connector and the second accommodating chamber are prevented
During mutual fastening, skids, fasten situation loosely.
Further, first connector is inserted into the end face of the end of second accommodating chamber and described second and accommodates
Setting has elastic component between the bottom of chamber of chamber.
When being pressed on product under the airtight pressure head of driving device driving, elasticity can be passed through between airtight pressure head and mechanical pressure head
Element plays buffer function, avoids airtight pressure head from impacting firmly and damages to workpiece for measurement.
Further, the elastic element uses spring, rubber bodies or cavernous body.
Further, the connector uses screw, has the characteristics that easy for assemble or unload.
Further, the fixing tool includes bottom plate and is disposed around the coaming plate of bottom plate side to form open box
Shape.
One side bottom plate plays the role of to accommodate and fix workpiece for measurement, the box that another aspect coaming plate and bottom plate are formed
Effect of the shape space also to store liquid.
It further, further include pedestal, the pedestal is to carry the fixing tool.
By adopting the above technical scheme, the technical effect of watertight test device provided by the invention has：
The present invention is provided in watertight test device, including：Fixing tool, press device and airtight pressure head；Fixing tool is used
With clamping workpiece for measurement and liquid can be accommodated；Airtight pressure head has venting cavity, and the cavity wall of venting cavity by admission line and supplies
The connection of gas equipment；Seal groove is set around the accent of venting cavity, is provided with sealing ring in seal groove；Airtight pressure head is in contact measured
When workpiece, the sealing ring being arranged in seal groove is to the venthole peripheral seal of workpiece for measurement so that venting cavity passes through workpiece for measurement
Venthole is passed through gas into workpiece for measurement；Airtight pressure head is connect with press device, so that press device can drive airtight pressure
Head is moved towards the venthole direction close to or far from workpiece for measurement.
Fixing tool plays the role of clamping workpiece for measurement, and can accommodate liquid to submerge workpiece for measurement, makes work to be measured
Part is in liquid；Press device drives airtight pressure head to be connected to the venthole of workpiece for measurement, and gas is passed through into workpiece for measurement,
So that workpiece for measurement internal gas pressure is greater than fluid pressure, to judge workpiece for measurement air leak position or airtight weak point
Position；Meanwhile making to be sealed between airtight pressure head and workpiece for measurement using sealing ring, ensureing may not flow into liquid inside workpiece for measurement
Body damages workpiece for measurement.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of watertight test device provided in an embodiment of the present invention；
Fig. 2 be watertight test device provided in an embodiment of the present invention schematic perspective view (omit air feed equipment and into
Feed channel)；
Fig. 3 be in Fig. 1 C-C to cross-sectional view；
Fig. 4 is the partial enlarged view in Fig. 2 at B.
Appended drawing reference：100- fixing tool；110- bottom plate；120- coaming plate；200- press device；210- machinery pressure head；
The second accommodating chamber of 211-；212- mounting hole；The second connector of 213-；220- driving device；The first accommodating chamber of 221-；300- is airtight
Pressure head；310- venting cavity；320- seal groove；330- sealing ring；The first connector of 340-；400- air feed equipment；500- connector；
600- elastic element；700- pedestal；800- workpiece for measurement.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Existing major part watertight test, is all made of for workpiece for measurement (product) to be put into and test in the water of certain depth
Mode, once workpiece for measurement generates leak hole, liquid be will go into workpiece for measurement, can damage the electronics device inside workpiece for measurement
Part, and the test mode of watertight test device provided in an embodiment of the present invention is by air-tightness principle, it can be seen that workpiece for measurement
The position for whether leaking and specifically leaking.After workpiece for measurement immerses liquid, it is passed through gas into workpiece for measurement, in workpiece for measurement
Portion forms higher gas pressure, if workpiece for measurement has a place of leak hole or airtight weakness, workpiece for measurement with leak hole or
The place of airtight weakness will form bubble, consequently facilitating observing accurate Gas leak position；Simultaneously as in workpiece for measurement constantly
Gas pressure is kept, workpiece for measurement will not will not also damage the electronic component inside workpiece for measurement there is a situation where intaking.
Specifically：
As shown in Figures 1 to 4, watertight test device provided in an embodiment of the present invention, including：Fixing tool 100, pressure are set
Standby 200 and airtight pressure head 300.
Fixing tool 100 is to clamping workpiece for measurement 800 and can accommodate liquid；
Airtight pressure head 300 has venting cavity 310, it is preferable that the axis of the axis of venting cavity 310 and airtight pressure head 300 is total
Line, airtight pressure head 300 can be moved along its axis direction；
The cavity wall of venting cavity 310 is connected to by admission line with air feed equipment 400, passes through air inlet using air feed equipment 400
Pipeline conveys gas into venting cavity 310, so that airtight pressure head 300 be enable to be passed through sky into the venthole of workpiece for measurement 800
Gas, to increase the air pressure inside workpiece for measurement 800；
End position of the airtight pressure head 300 to contact measured workpiece 800, the endface position of preferably airtight pressure head 300,
Seal groove 320 is arranged in accent around venting cavity 310, referring to figure 4., it is preferable that seal groove 320 is set as O shape, seal groove
Sealing ring 330 is provided in 320, airtight pressure head 300 is in contact measured workpiece 800, the sealing ring of setting in seal groove 320
The circumferential position of the venthole of 330 pairs of workpieces for measurement 800 is sealed, to ensure airtight pressure head 300 to workpiece for measurement 800
When middle injection gas, it is isolated from the outside, is avoided completely by sealing ring 330 with the circumferential position of the venthole of workpiece for measurement 800
Liquid is entered inside workpiece for measurement 800 by venthole；
Airtight pressure head 300 is connect with press device 200, press device 200 airtight pressure head 300 can be driven towards close or
Venthole direction far from workpiece for measurement 800 moves.
When needing to detect the air-tightness of workpiece for measurement 800, press device 200 drives airtight pressure head 300 towards work to be measured
Part 800 is mobile, until the sealing ring 330 on airtight pressure head 300 is connected to the circumferential position of the venthole of workpiece for measurement 800, supplies
Gas equipment 400 injects gas to the venthole of workpiece for measurement 800 by the venting cavity 310 of airtight pressure head 300；When detection finishes
Afterwards, the direction that press device 200 drives airtight pressure head 300 to be directed away from workpiece for measurement 800 is mobile.
Fig. 1-Fig. 3 is please referred to, when it is implemented, fixing tool 100 is including bottom plate 110 and is disposed around 110 side of bottom plate
Coaming plate 120, the coaming plate 120 of bottom plate 110 and its surrounding forms open box-like.
Preferably, the groove to accommodate workpiece for measurement 800 is set on bottom plate 110, the true form of groove with it is to be measured
The shape of workpiece 800 is adapted, and in order to which workpiece for measurement 800 is fixed, prevents from carrying out the air-tightness of workpiece for measurement 800
Workpiece for measurement 800 is mobile when detection, also sets up corresponding groove-like structure on the two sides of bottom plate 110 or coaming plate 120, thus side
Just it carries.
110 one side of bottom plate plays the role of to accommodate and fix workpiece for measurement 800, another aspect coaming plate 120 and bottom
The box-like space that plate 110 is formed is also to store liquid.
In above-mentioned technical proposal, fixing tool 100 plays clamping workpiece for measurement 800, and can accommodate liquid with submerge to
Survey the effect of workpiece 800；Press device 200 drives airtight pressure head 300 mobile towards workpiece for measurement 800, abuts sealing ring 330
In the circumferential position of the venthole of workpiece for measurement 800, the venting cavity 310 of airtight pressure head 300 and the venthole of workpiece for measurement 800 connect
It is logical, gas is passed through into workpiece for measurement 800 by venting cavity 310, so that 800 air pressure inside of workpiece for measurement is greater than outside
Fluid pressure, to judge the leak hole of workpiece for measurement 800 or the position of airtight weakness；Meanwhile making airtight pressure head using sealing ring 330
It is sealed between 300 and workpiece for measurement 800, ensures that may not flow into liquid inside workpiece for measurement 800 causes workpiece for measurement 800
Damage.
Referring to figure 4., in a preferred embodiment of the invention, the groove width of seal groove 320, from slot bottom to notch
Successively decrease in direction；Seal groove 320 designs using the above structure, so that sealing ring 330 is not easy to fall from seal groove 320, to protect
Hinder the leakproofness between airtight pressure head 300 and workpiece for measurement 800.
Referring to figure 3. and Fig. 4, in a preferred embodiment of the invention, airtight pressure head 300 is far from venting cavity 310
One end of accent is provided with the first connector 340 to connect press device 200.Preferably, the first connector 340 is set as
The axle center of column, the first connector 340 is conllinear with the axle center of venting cavity 310.
In a preferred embodiment of the invention, press device 200 includes mechanical pressure head 210 and driving device 220；
Driving device 220 has telescopic rod, and telescopic rod is able to drive the mechanical movement of pressure head 210, is provided in telescopic rod
First accommodating chamber 221；
There is the second accommodating chamber 211 to accommodate the first connector 340, the first connector 340 inside mechanical pressure head 210
It can be moved in the second accommodating chamber 211；
The one end (i.e. one end of face telescopic rod) of mechanical pressure head 210 far from the second accommodating chamber 211 is provided with the second connection
Body 213, the second connector 213 are fixed in the first accommodating chamber 221 of telescopic rod；Also, setting is useful in the second connector 213
To be connected to the mounting hole 212 of the second accommodating chamber 211 and the first accommodating chamber 221, it is preferable that the second accommodating chamber 211, mounting hole 212
It is coaxially arranged with mechanical pressure head 210；
Connector 500 is coated in mounting hole 212,500 one end of connector is connect with the first connector 340, the other end
It is inserted into the first accommodating chamber 221 and can be moved in the first accommodating chamber 221.
It is arranged by above structure, under the driving of the telescopic rod of driving device 220, mechanical pressure head 210 and airtight pressure head
300 can synchronize towards the movement of workpiece for measurement 800, when the sealing ring 330 on airtight pressure head 300 touches workpiece for measurement 800,
Since driving device 220 continues to the effect of pressure, the first connector 340 links airtight pressure head 300 can be relative to machinery
Pressure head 210 and telescopic rod reverse movement, so that airtight pressure head 300 be avoided directly to cause to impact firmly to workpiece for measurement 800.
In a preferred embodiment of the invention, above-mentioned driving device 220 preferably uses cylinder, and cylinder has flexible
Bar, have the characteristics that it is easy to use, be easily manipulated.Above-mentioned connector 500 preferably uses screw, and the screw cap end of screw stretches to
In first accommodating chamber 221, the screw rod end of screw passes through mounting hole 212 and is threadedly coupled with the first connector 340, has installing and dismounting
Convenient feature.Certainly, above-mentioned connector 500 can also be substituted using pin rod etc..
In a preferred embodiment of the invention, there is position restrainer between the second accommodating chamber 211 and the first connector 340
Structure is so that the first connector 340 will not be relatively rotated with the second accommodating chamber 211.
Preferably, at least one plane on side of the position-limit mechanism by columnar first connector 340 is arranged in, with
And at least one corresponding plane composition of the internal chamber wall of the second accommodating chamber 211, the limit of above-mentioned two plane composition are set
Position mechanism, not only acts as the effect convenient for assembly, also acting as prevents cylindrical first connector 340 and the second accommodating chamber 211 from existing
Mutually during fastening, skids, fasten situation loosely.
In a preferred embodiment of the invention, the first connector 340 is inserted into the end of the end of the second accommodating chamber 211
Setting has elastic component 600 between face and the bottom of chamber of the second accommodating chamber 211.Driving device 220 drives and is pressed under airtight pressure head 300
When on workpiece for measurement 800, buffer function can be played by elastic element 600 between airtight pressure head 300 and mechanical pressure head 210,
The hard impact of airtight pressure head 300 is avoided to damage workpiece for measurement 800.
Preferably, above-mentioned elastic element 600 has multiple choices mode, for example, damping spring, damping bullet can be used
Spring covers on connector 500, also, the first end of damping spring is contacted with the bottom of chamber of the second accommodating chamber 211, and the of damping spring
Two ends are contacted with the one end that the first connector 340 is inserted into the second accommodating chamber 211.
Above-mentioned elastic element 600 can also be that rubber bodies or cavernous body etc. have the element of certain elastic buffer effect,
In application, can by rubber bodies perhaps cavernous body be arranged to the inside of the second accommodating chamber 211 compatible shape rubber bodies or
The both ends of cavernous body contact the bottom of chamber portion of the second accommodating chamber 211 respectively and the first connector 340 is inserted into the second accommodating chamber 211
One end；Further, it is also possible to be arranged in rubber bodies or cavernous body accordingly to the through-hole for accommodating connector 500, ensure
It will not interfere with the movement of connector 500.
Watertight test device provided in an embodiment of the present invention, specific implementation process are as follows：
When carrying out air tightness test, the telescopic rod of cylinder stretches out, and drives mechanical pressure head 210 and 300 direction of airtight pressure head
Workpiece for measurement 800 is mobile, and when airtight pressure head 300 is contacted by sealing ring 330 and workpiece for measurement 800, cylinder continues to press
Power makes telescopic rod continue to stretch out, and the opposite direction that airtight pressure head 300 can be moved by connector 500 relative to telescopic rod is mobile,
Until telescopic rod stretches out in place, sealing ring 330 is connected to the circumferential position of the venthole of workpiece for measurement 800 at this time, in this process
In, elastic element 600 is gradually in compressive state；To generate the effect of buffering to airtight pressure head 300, reduce to workpiece for measurement
800 hard impact；
At the end of air tightness test, the telescopic rod of cylinder bounces back, and drives mechanical pressure head 210 and airtight pressure head 300 mobile
With far from workpiece for measurement 800, elastic element 600 can be such that airtight pressure head 300 generates far from telescopic rod under own resilient effect
The mobile trend in direction, while the telescopic rod of cylinder drives airtight pressure head 300 far from workpiece for measurement 800, elastic element 600
It is gradually resetted by compressive state, after elastic element 600 is in reset state, the airtight beginning of pressure head 300 divides with workpiece for measurement 800
From in order to carry out air tightness test again.
In above-mentioned technical proposal, connector 500 combines the first accommodating chamber 221 and elastic element 600 to use, and can make to drive
Device 220 drives when being pressed on product under airtight pressure head 300, can pass through elasticity between airtight pressure head 300 and mechanical pressure head 210
Element 600 plays buffer function, avoids impacting damaging firmly to workpiece for measurement 800.
In a preferred embodiment of the invention, which further includes pedestal 700, and pedestal 700 passes through solid
Determine part to be fixed on work top, fixing piece can use screw, have the characteristics that convenient disassembly, fixing tool 100 pass through pin
Nail is mounted on pedestal 700.
Watertight test device provided in an embodiment of the present invention at least has the following technical effects compared with the prior art：
1, the test mode of the watertight test device is to be made to be measured by airtight pressure head to gas is passed through inside workpiece for measurement
Inside workpiece air pressure and external liquid form pressure difference, and workpiece for measurement is made to have leak hole or airtight weak place to form gas
Bubble, convenient for observation Gas leak position, also, due to having the gas pressure constantly kept, workpiece for measurement will not occur into such as liquid
The case where, part internal electronic component to be measured will not be damaged.
2, it by the seal groove (successively decreasing in direction of the groove width from slot bottom to notch) being arranged in airtight pressure head end face, can assemble
Stock size O-ring seal is not required to customize, simple and practical, meanwhile, sealing ring is not easily to fall off.
3, the setting of elastic element, plays buffer function, avoids the hard contact measured workpiece of airtight pressure head, avoids to work to be measured
Part damages.
4, fixing tool can be changed quickly fixing tool, reach Quick Changeover in such a way that pin is connect with pedestal
Demand.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of watertight test device, which is characterized in that including fixing tool, press device and airtight pressure head；
The fixing tool is to clamping workpiece for measurement and can accommodate liquid；
The airtight pressure head has venting cavity, and the cavity wall of the venting cavity is connected to by admission line with air feed equipment, surrounds institute
The accent setting seal groove of venting cavity is stated, is provided with sealing ring in the seal groove；The airtight pressure head is in contact measured workpiece
When, the interior sealing ring being arranged of the seal groove is to the venthole peripheral seal of workpiece for measurement so that the venting cavity passes through work to be measured
The venthole of part is passed through gas into workpiece for measurement；
The airtight pressure head is connect with the press device, so that the press device can drive the airtight pressure head direction to lean on
Close or remote from the venthole direction movement of workpiece for measurement.
2. watertight test device according to claim 1, which is characterized in that direction of the seal groove from slot bottom to notch
Groove width successively decreases.
3. watertight test device according to claim 1, which is characterized in that the accent of the airtight pressure head far from venting cavity
One end be provided with the first connector to connect press device.
4. watertight test device according to claim 3, which is characterized in that the press device includes mechanical pressure head and drive
Dynamic device；
The driving device has telescopic rod, has the first accommodating chamber in the telescopic rod；
The machinery pressure head has the second accommodating chamber to accommodate the first connector, and the machinery pressure head is far from the second accommodating chamber
One end be provided with the second connector, second connector is fixed in the first accommodating chamber, setting in second connector
There is the mounting hole to be connected to the second accommodating chamber and the first accommodating chamber, connector, the connector are coated in the mounting hole
One end is connect with first connector, and the other end is inserted into first accommodating chamber and can be in the first receiving cavity
Movement is to drive first connector to move in second accommodating chamber.
5. watertight test device according to claim 4, which is characterized in that second accommodating chamber and first connection
Have position-limit mechanism so that first connector will not be relatively rotated with second accommodating chamber between body.
6. watertight test device according to claim 4, which is characterized in that first connector is inserted into described second
It is arranged between the end face of the end of accommodating chamber and the bottom of chamber of second accommodating chamber and has elastic component.
7. watertight test device according to claim 6, which is characterized in that the elastic element uses spring, rubber bodies
Or cavernous body.
8. watertight test device according to claim 4, which is characterized in that the connector uses screw.
9. watertight test device according to claim 1, which is characterized in that the fixing tool includes that bottom plate and enclosing is set
In the coaming plate of bottom plate side to form the box-like of opening.
10. watertight test device according to claim 1, which is characterized in that further include pedestal, the pedestal is to carry
The fixing tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101922.6A CN108827550A (en) | 2018-09-20 | 2018-09-20 | Watertight test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101922.6A CN108827550A (en) | 2018-09-20 | 2018-09-20 | Watertight test device |
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| Publication Number | Publication Date |
|---|---|
| CN108827550A true CN108827550A (en) | 2018-11-16 |
Family
ID=64149393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101922.6A Pending CN108827550A (en) | 2018-09-20 | 2018-09-20 | Watertight test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406063A (en) * | 2018-11-27 | 2019-03-01 | 大连盛通阀门制造有限公司 | A kind of pressure testing device of small dimension y-type filter body |
| CN110726515A (en) * | 2019-11-14 | 2020-01-24 | 上海金东唐科技有限公司 | Waterproof joint test fixture and waterproof joint test equipment |
| CN112284629A (en) * | 2020-10-15 | 2021-01-29 | 维沃移动通信有限公司 | Air tightness testing device and testing method |
| CN114838886A (en) * | 2022-05-16 | 2022-08-02 | 博众精工科技股份有限公司 | Bell mouth air tightness detection device |
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