CN207375388U - A kind of steel alloy welding gas tests system overlay film component - Google Patents
A kind of steel alloy welding gas tests system overlay film component Download PDFInfo
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- CN207375388U CN207375388U CN201721100665.5U CN201721100665U CN207375388U CN 207375388 U CN207375388 U CN 207375388U CN 201721100665 U CN201721100665 U CN 201721100665U CN 207375388 U CN207375388 U CN 207375388U
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Abstract
The utility model discloses a kind of steel alloy welding gas to test system overlay film component, it is characterised in that including：It stacks and upper annular body and lower annular body is set, upper annular body upper surface sets gradually annular backflash, annular surface cooling bath, outer ring backflash from inside to outside, upper annular body upper surface outermost sets the sucker accommodating chamber being distributed in a ring, and vacuum cup mobilizable and equipped with mechanical stop limiter is equipped in sucker accommodating chamber.The utility model has the advantage of：Automatic film covering is smoothly realized using overlay film component and overturning component, pumped vacuum systems cooperation, without manually carrying out the installation of test film, improves the safety coefficient of test system demonstration；And vacuum cup does not work during detonation test, promotes vacuum cup, pumped vacuum systems service life.
Description
Technical field
The utility model is related to a kind of steel alloy welding gas to test system, and more particularly to a kind of steel alloy welding gas is surveyed
Test system overlay film component.
Background technology
The confined space refers to closing or partially enclosed, is relatively isolated with the external world, entrance is more narrow, operating personnel
It cannot work inside for a long time, gravity-flow ventilation is bad, easily causes poisonous and harmful, flammable and explosive substance accumulation or oxygen content deficiency
Space.In general, operating personnel to the strange of confined space concept, endangers so that can not see clearly that additional space is existing at all
Property so that in a limited space operation occur accident incidence it is higher.
With industrialized continuous development, the requirement for confined space job safety is also higher and higher, can be to operation
Personnel carry out live confined space detonation simulation, and can continuously show that the test system of detonation harm is born therewith.Current
Mainly the detonation case (confined space) including top end opening, air supply system, igniting are steel alloy welding gas detonation test system
Fuel gas is imported detonation case by air supply system, in detonation box top coverage test film, passes through the igniting system in detonation case by system
System lights gas and causes detonation, and the gas shock-testing film generated using detonation realizes the displaying of detonation harm.
After each detonation test is carried out, it is required for manually being covered new test film to the top of detonation case again with hand
In opening, presentation cycle is not only extended, can not realize continuous detonation demonstration, and there are certain safety is hidden for manual operation
Suffer from；And the vacuum pumping technology being currently known is applied when carrying out test film automatic absorbing, to be primarily present problems with：
(1) for the vacuum cup that test film is adsorbed since material limits, it can not use silicone rubber kinds for a long time in high temperature
The material used after the impact of gas explosion and high temperature influence is frequently received, easily causes vacuum cup deformation, can not be normal
Absorption；
(2) in order to avoid test film, deviation position, vacuum cup and its pumped vacuum systems need to continue before detonation test
It works, the high temperature and impact for causing detonation generation can also enter the pumped vacuum systems being connected with vacuum cup, certain
Stable operation and the service life of pumped vacuum systems are influenced in degree.
Therefore, research and development are a kind of being capable of automatic absorbing test film and steel alloy welding gas stable and reliable in work test system
It is imperative with overlay film component.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of steel alloy welding gas tests based on vacuum cup
System overlay film component, without human intervention coverage test film, and be hardly damaged vacuum cup and pumped vacuum systems.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of steel alloy welding gas tests system
With overlay film component, innovative point is：Including
Annular body on one limits a side end face of annular body as upper surface, another side end face be lower face, upper ring
The one side of close inner ring periphery is inner ring side in shape circle body, is outer ring side close to the one side of outer ring periphery；
The upper annular body upper surface is provided with an annular surface cooling bath extended along upper annular body circumferencial direction,
The width of the annular surface cooling bath is 1.5~2.2mm, and the inner ring side and outer ring side of the annular surface cooling bath are set respectively
There are concentric annular backflash and outer ring backflash, and annular surface cooling bath, annular backflash, outer ring are returned
Chute is the straight slot of the upper upper and lower end face of annular body of perforation；
The upper surface of the upper annular body is additionally provided with what is be distributed in a ring centered on several Yi Shang annular body centers of circle
Sucker accommodating chamber, the sucker accommodating chamber is between the outer circumference surface of upper annular body and outer ring backflash, the sucker
Extended upper annular body upper surface or the upper annular ring of retraction in vivo vacuum cup are installed in accommodating chamber；
Several corresponding with sucker accommodating chamber and conducting limit installation is provided on the outer ring periphery of the upper annular body
The mechanical stop limiter in hole is mounted being mounted in hole to be equipped with to stretch into sucker accommodating chamber or retract in hole；
One has upper annular body corresponding and coaxially stacks the lower annular body set, limits in lower annular body and is close to ring
One side end face of shape circle body is upper surface, and another side end face is lower face；
The lower annular body upper surface is provided with a ring vaccum chamber extended along lower annular body circumferencial direction, the ring
Shape vacuum chamber is corresponding with the sucker accommodating chamber being distributed in a ring, and ring vaccum chamber connects simultaneously with the bottom of each sucker accommodating chamber
It is logical, the vacuumizing joint connected with ring vaccum chamber is installed on the outer circumference surface of lower annular body；
The upper surface of the lower annular body is additionally provided with one to aquaporin, should extend to lower annular to one end of aquaporin
The upper surface of circle body is simultaneously connected with the bottom of annular surface cooling bath, to aquaporin the other end with outside the lower annular body
Joint for water supply connection on periphery；
The upper surface of the lower annular body is additionally provided with a backwater channel, and one end of the backwater channel connects two return water branch
Runner, the two return water branch flow passage other ends all extend to the upper surface of lower annular body and respectively with annular backflash, outer ring
The bottom connection of backflash, the other end of backwater channel are connected with the backwater joint on lower annular body outer circumference surface.
Preferably, interior water conservancy diversion slope is provided between the annular surface cooling bath upper end notch and annular backflash,
And the interior water conservancy diversion slope along the diametric(al) of upper annular body from the inside annular return slot of annular surface cooling bath upper end notch
End slot mouth tilts down；Outer water conservancy diversion slope is provided between the annular surface cooling bath upper end notch and outer ring backflash,
And the outer water conservancy diversion slope along the diametric(al) of upper annular body from the outside annular return slot of annular surface cooling bath upper end notch
End slot mouth tilts down.
Preferably, the sucker accommodating chamber includes that end face sets gradually the circle of connection downwards from the upper end of upper annular body
Mesa-shaped upper limit hole section, the hole section that is slidably matched, round table-like lower limit hole section and stabilizers accommodate hole section；Round table-like upper limit hole section
Small end and upper and lower end of the small end respectively with the hole section that is slidably matched of round table-like lower limit hole section connect；Round table-like upper limit
The big end internal diameter of hole section is denoted as R21, and the small end inner diameter of round table-like upper limit hole section is denoted as R22, and the hole section that is slidably matched internal diameter is denoted as
R23, the small end inner diameter of round table-like lower limit hole section are denoted as R24, and the big end internal diameter of round table-like lower limit hole section is denoted as R25, stablize
The internal diameter that portion accommodates hole section is denoted as R26, R22=R23=R24 ＜ R25 ＜ R21 ＜ R26；The vacuum cup includes can be with round platform
The bowl-shape sucking disk part that shape upper limit hole section matches, the embedded slip that hole section is interior and is slidably matched with the hole section that is slidably matched that is slidably matched
Portion, the /V tapering that can match with round table-like lower limit hole section and embedded stabilizers are accommodated in hole section and accommodated with stabilizers
The stabilizers that hole section is slidably matched, the bowl-shape sucking disk part, sliding part, /V tapering and stabilizers be in turn connected to form one it is whole
Body, and sliding part length is more than the hole section length that is slidably matched；
The vacuum cup can be positioned to first position and the second position in sucker accommodating chamber, in first position,
The bowl-shape sucking disk part lateral surface of the vacuum cup is close to the inner wall of round table-like upper limit hole section, and the complete position of bowl-shape sucking disk part
In in the round table-like upper limit hole section of sucker accommodating chamber；In the second position, the /V tapering lateral surface of the vacuum cup is close to
The upper surface of upper annular body, round table-like lower limit are stretched out in the firmly inner wall of round table-like lower limit hole section, the upper end of bowl-shape sucking disk part
Hole section and stabilizers accommodate tool between the step surface formed between hole section and annular stabilizers, and there are one the gaps of 1~2mm.
Preferably, the mechanical stop limiter includes
One mechanical position limitation housing, the mechanical position limitation housing are multi-step rotary structure, limit mechanical position limitation housing on edge
One end on the axis direction of multi-step rotary structure is first end, and the other end is second end,
On the axis direction along mechanical position limitation housing multi-step rotary structure, the mechanical position limitation housing outer surface is certainly
First end is equipped with the first linkage section, main paragraph and the second linkage section successively to second end, is equipped with to pacify on the first linkage section
The external thread structure of mechanical position limitation is filled, the one side on main paragraph close to the first linkage section is threaded with locking nut；First connects
The outer diameter for connecing section is denoted as R1, and the outer diameter of main paragraph is denoted as R2, and the outer diameter of the second linkage section is denoted as R3, R1≤R3 ＜ R2；
The center of mechanical position limitation housing is provided with the multi-step vestibule of perforation, along mechanical position limitation housing multi-step revolving body knot
On the axis direction of structure, the multi-step vestibule is followed successively by the first cylindrical cavity, tapering transition chamber, second from first end to second end
Cylindrical cavity and the 3rd cylindrical cavity are provided with internal thread structure on the inner wall of the 3rd cylindrical cavity；The internal diameter of first cylindrical cavity is denoted as R4,
The internal diameter of second cylindrical cavity is denoted as R5, and the internal diameter of the 3rd cylindrical cavity is denoted as R6, R4 ＜ R5 ＜ R6；
One limiting piston bar, the limiting piston bar have a metal spacing tube body, the end of the metal spacing tube body to
Flanging forms a cyclic structure, and piston is injection molded in the cyclic structure；The metal spacing tube body insertion machinery limit
It is slidably matched in first cylindrical cavity of position housing with the first cylinder cavity wall, the second circle of the mechanical position-restricted housing of piston insertion
Column intracavitary is slidably matched with the second cylinder cavity wall；And it is provided on metal spacing tube body and vacuumizes the first intercommunicating pore；
One piston rod resetting spring, the piston rod resetting spring are sleeved on outside metal spacing tube body, and positioned at mechanical position limitation
In the second cylindrical cavity of housing, one end of the piston rod resetting spring props up piston end surface, and the other end is against the second cylindrical cavity and cone
On the step surface formed between shape adapter cavity；
One end cap, the end cap are step-like rotary structure, limit end cap in the axis direction along end cap rotary structure
On one end for the 3rd end, the other end is the 4th end,
On the axis direction along end cap rotary structure, external face is equipped with locking successively from the 3rd end to the 4th end
Section and outer balancing segment, are provided with external thread structure, the outer diameter of locking section is denoted as R7, and the outer diameter of outer balancing segment is denoted as in locking section
R8, R7 ＞ R8；The outer surface locking section of the end cap is connected with the 3rd cylindrical cavity of mechanical position limitation housing by internal and external screw thread structure
Connect fixation；
The center of end cap is provided with the step vestibule of perforation, on the axis direction along end cap rotary structure, the step
Vestibule is equipped with the 4th cylindrical cavity and the 5th cylindrical cavity successively from the 3rd end to the 4th end, and the internal diameter of the 4th cylindrical cavity is denoted as R9, the
The internal diameter of five cylindrical cavities is denoted as R10, R9 ＞ R10；Between 4th cylinder cavity wall of the end cap and outer balance section surface uniformly
Several end cap balance holes are provided with, confined planes in annular are formed between the 4th cylindrical cavity of end cap and the 5th cylindrical cavity；
One vacuumizes connecting tube, this vacuumizes the tube body that connecting tube is one end closing, and restriction vacuumizes connecting tube in its pipe
One end in body axis direction is the 5th end, and the other end is the 6th end,
Vacuumize connection tube hub have one extend on its tube body axis direction from the end face at the 6th end to the 5th end and
The duct that vacuumizes at the 5th end is not penetrated through, and is provided with and is taken out in connecting tube circumferential exterior surface close to vacuumizing for the 5th end
Vacuum hole link vacuumizes the second intercommunicating pore；
Tube body circumferential exterior surface compression molding close to the 6th end on conduit is vacuumized is useful for being connected fixation with end cap
Rubber limit plug, rubber limit plug tool there are one can just be embedded in the 5th cylindrical cavity of end cap and with the 5th cylinder cavity wall
The small annular solid of tight fit is useful for the cone in embedded end cap in the 4th cylindrical cavity in one end global formation of small annular solid
Interior limiting section has limiting section outside annular in the other end global formation of small annular solid；In the cone outside the bottom surface of limiting section
Footpath is denoted as R11, and the outer diameter of the outer limiting section of annular is denoted as R12, R10 ＜ R11 ＜ R9 ＜ R12；
In the small annular solid insertion end cap in the 5th cylindrical cavity, and close-fitting between small annular solid and the 5th cylinder cavity wall
It closes, in the cone in limiting section insertion end cap in the 4th cylindrical cavity, and ring is close in the taper bottom surface of limiting section in cone
Confined planes in shape, the outer limiting section of annular are close to the 4th end outer end face of end cap；
It is described to vacuumize in connecting tube in the metal spacing tube body of the body portion insertion limiting piston bar at the 5th end
And be slidably matched with the inner wall of metal spacing tube body, the body portion vacuumized in connecting tube close to the 6th end passes through rubber
Limit plug is located in end cap central.
The utility model has the advantage of：
(1) the overlay film component in the utility model is used cooperatively with overlay film component switching mechanism, by overlay film component tipper
Structure drives overlay film component back and forth overturning 180 ° between the opening of detonation case and the test film stacked；By upper annular body under
The overlay film circle of annular body composition is overturn above the test film to stacking, and the vacuum cup on overlay film circle downward and stretches out overlay film circle
Upper surface, and then adsorb test film；Overlay film circle is overturn again to the top end opening of detonation case, the vacuum cup of overlay film circle
Upward in the sucker accommodating chamber of retraction overlay film circle, the automatic film covering of detonation test is completed；
Without manually carrying out the installation of test film, smoothly to realize that remote control provides necessary basis, test system is improved
The safety coefficient of demonstration, and it is advantageously implemented continuous detonation demonstration；
(2) vacuum cup is extended or annular body is gone up in retraction, is located in overlay film circle above the test film stacked and is surveyed
When trying film absorption, downward, vacuum cup is moved to the second position and stretches out upper annular body vacuum cup, to contact and adsorb survey
Try film；When overlay film circle is located at the progress detonation test of detonation case opening, upward, vacuum cup is moved to first to vacuum cup
The upper annular body of retraction is put, high-temperature gas during detonation is avoided to be directly impinging vacuum cup, vacuum cup is greatly prolonged and uses the longevity
Life；
(3) in the overlay film component of the utility model, employ positioned at overlay film circle upper surface annular surface cooling bath and it is interior,
Outer ring backflash, after test film is moved to detonation case top by overlay film circle, vacuum cup is stopped, and is passed through annular surface
The cooling water of cooling bath is gone out by overflow at the top of annular surface cooling bath and can adsorb test film to a certain extent, can be kept away
When exempting to be filled with welding gas in detonation case or outside environmental elements cause test film to move；Meanwhile detonation case opening with
Increase by one of annular cooling water passage between vacuum cup, can further reduce shadow of the detonation high temperature with impact to vacuum cup
It rings；Moreover, overlay film is cooled down using the cooling water in annular surface cooling bath and annular backflash, outer ring backflash
Circle reduces overlay film circle surface temperature, avoids the damage of overlay film circle and the excessively high non-detonation for causing test film of overlay film circle surface temperature
Damage is advantageously implemented continuous detonation demonstration；
(4) in detonation test process is carried out, due to can be adsorbed using the tension of cooling water in annular surface cooling bath
Test film so that vacuum cup need not work, and then pumped vacuum systems work can be avoided to suck high-temperature gas from vacuum cup, into
One step extends pumped vacuum systems and the corresponding service life for vacuumizing hose；
(5) vacuum cup is coaxially set by bowl-shape sucking disk part, sliding part, /V tapering and annular stabilizers in the utility model
It puts and is in turn connected to form, sliding part and annular stabilizers accommodate simultaneously with the hole section that is slidably matched of sucker accommodating chamber, stabilizers
Hole section is slidably matched so that vacuum cup is more reliable and more stable in moving process, and reduction is rocked；Meanwhile the cunning of vacuum cup
Dynamic portion, /V tapering and stabilizers are made of graphite block overall processing so that vacuum cup can be moved smoothly, be not easy card
Extremely；
(6) vacuum cup is formed in first and second position between round table-like lower limit hole section and stabilizers receiving hole section
Have always there are one gap between step surface and annular stabilizers, and be evenly distributed in the annular stabilizers of vacuum cup several
The stabilizers balance hole of its own upper and lower end face is penetrated through, vacuum cup is avoided to can not be successfully discharge step surface and ring at work
Air between shape stabilizers causes mobile not in place, it is ensured that vacuum cup can be stablized, reliably working；
(7) in the utility model, when vacuum cup stretches out the progress test film absorption of overlay film circle downward, mechanical position limitation is utilized
Device limits the vacuum cup of test film adsorbed state into row position, and vacuum cup wobble effects are adsorbed very when avoiding vacuumizing
To because the other reasons such as negative pressure are retracted in overlay film circle, it is ensured that adsorb the reliability of work；
Meanwhile mechanical stop limiter acts vacuum cup /V to realize using pumped vacuum systems, due to vacuum cup
Itself also must be equipped with pumped vacuum systems, it is therefore not necessary to as traditional cylinder, hydraulic-driven limiting device optional equipment
Compressed gas source or hydraulic station simplify the volume of whole system, reduce cost as power source；And overlay film circle upper pipeline is unification
Vacuum-pumping pipeline, it is easy to maintain.
(8) when overlay film circle adsorbs test film, vacuum cup is located at overlay film circle lower surface, and limiting device, vacuum cup are equal
It being connected with pumped vacuum systems, vacuum cup stretches out and adsorbs test film under the effect of gravity, and simultaneously, the limit of mechanical stop limiter
Position piston rod needs to extend above vacuum cup, and to vacuum cup /V, the moving influence of vacuum cup is true when avoiding vacuumizing
Suction is attached；When 180 ° of top test mouths for being moved to detonation case of test film overturning are carried out detonation test by overlay film circle, vacuum is inhaled
Disk is located at overlay film circle upper surface, and limiting device, vacuum cup do not connect with pumped vacuum systems, and the /V of mechanical stop limiter is lived
Stopper rod bounces back, and vacuum cup upward in retraction overlay film circle, avoids detonation repeatedly that vacuum cup is caused to damage under Gravitative Loads；
Therefore, the switching motion when being connected with pumped vacuum systems is consistent with vacuum cup for the limiting device of the utility model,
Realize that linkage or delay link, the valve group quantity of vacuum-pumping pipeline on reduction limiting device, vacuum cup reduces control difficulty.
(9) realize mechanical stop limiter and vacuum cup when vacuumizing keying linkage, it is necessary in pumped vacuum systems work
The limiting piston bar of limiting device is stretched out when making, that is, needs to vacuumize the rod chamber of mechanical position limitation housing, and this practicality is new
In the mechanical stop limiter of type, realize that rod chamber is taken out very using the built-in pipeline connection for vacuumizing connecting tube and pumped vacuum systems
Sky, without being connected from perforate on the side wall of mechanical position-restricted housing with rod chamber；It can either smoothly realize linkage, and avoid in machinery
Position-restricted housing side sets pipeline to cause limiting device volume excessive so that limit device structure is compacter.
Description of the drawings
Fig. 1 tests system overlay film assembly plan view for the utility model steel alloy welding gas and (mechanical position limitation is not shown
Device).
Fig. 2 is along line B-B sectional view in Fig. 1.
Fig. 3 is sucker accommodating chamber structure diagram in the utility model.
Fig. 4 is vacuum cup structure diagram in the utility model.
Fig. 5 is the structure diagram of mechanical stop limiter in the utility model.
Fig. 6 is the mechanical position limitation shell structure schematic diagram of mechanical stop limiter in the utility model.
Fig. 7 is the limiting piston rod structure schematic diagram of mechanical stop limiter in the utility model.
Fig. 8 is the end cover structure schematic diagram of mechanical stop limiter in the utility model.
Fig. 9 is that mechanical stop limiter vacuumizes connecting tube and rubber limit plug structure diagram in the utility model.
Figure 10 is that overlay film component adsorbs test film state diagram in the utility model.
Figure 11 vacuum cup fundamental diagrams in the case where membrane stage is tested in absorption for the utility model overlay film component.
Figure 12 mechanical stop limiter fundamental diagrams in the case where membrane stage is tested in absorption for the utility model overlay film component.
Figure 13 is that overlay film component completes overlay film state diagram in the utility model.
Figure 14 is the utility model overlay film component mechanical stop limiter fundamental diagram in the case where completing overlay film state.
Figure 15 is the utility model overlay film component vacuum cup fundamental diagram in the case where completing overlay film state.
Specific embodiment
As shown in Figure 1, 2, the utility model steel alloy welding gas test system includes upper annular body with overlay film component
32a, lower annular body 32b, annular body 32a and lower annular body 32b coaxially stacks composition overlay film circle 32 on this, specifically such as
Under：
Annular body 32a on one limits a side end face of annular body 32a as upper surface, and another side end face is lower end
Face close to the one side of inner ring periphery is inner ring side in upper annular body 32a, is outer ring side close to the one side of outer ring periphery；
Upper annular body 32a upper surfaces are provided with an annular surface cooling bath extended along upper annular body circumferencial direction
The width of 37a, annular surface cooling bath 37a are 1.5~2.2mm, and the inner ring side and outer ring side of annular surface cooling bath 37a are divided
Concentric annular backflash 38a and outer ring backflash 39a, and annular surface cooling bath 37a, annular are not provided with
Backflash 38a, outer ring backflash 39a are the straight slot of the upper upper and lower end faces of annular body 32a of perforation；In addition, annular surface is cold
But interior water conservancy diversion slope is provided between slot 37a upper ends notch and annular backflash 38a, and the interior water conservancy diversion slope is in upper annular ring
The diametric(al) of body 32a is tilted down from the inside annular return slot 38a upper ends notch of annular surface cooling bath 37a upper ends notch；
Outer water conservancy diversion slope, and the outer water conservancy diversion slope are provided between annular surface cooling bath 37a upper end notches and outer ring backflash 39a
Along the diametric(al) of upper annular body from the outside annular return slot 39a upper ends notch of annular surface cooling bath 37a upper ends notch to
Lower inclination.
The upper surface of upper annular body 32a is additionally provided with the suction being distributed in a ring centered on several Yi Shang annular body centers of circle
Disk accommodating chamber 33, sucker accommodating chamber 33 is between the outer circumference surface of upper annular body 32a and outer ring backflash 39a, sucker
Extended upper annular body 32a upper surfaces or the vacuum cup 34 retracted in upper annular body 32a are installed in accommodating chamber 33；
Several corresponding with sucker accommodating chamber 33 and conducting limit installation is provided on the outer ring periphery of upper annular body 32a
The mechanical stop limiter 31 in hole is mounted being mounted in hole to be equipped with to stretch into sucker accommodating chamber 33 or retract in hole.
One has upper annular body 32a corresponding and coaxially stacks the lower annular body 32b set, limits lower annular body 32b
In be close to a side end face of annular body 32a for end face thereon, another side end face is its lower face；
Lower annular body 32b upper surfaces are provided with a ring vaccum chamber 35 extended along lower annular body circumferencial direction, should
Ring vaccum chamber 35 is corresponding with the sucker accommodating chamber 33 being distributed in a ring, and ring vaccum chamber 35 simultaneously with each sucker accommodating chamber 33
Bottom connection, the vacuumizing joint 36 connected with ring vaccum chamber 35 is installed on the outer circumference surface of lower annular body 32b；
The upper surface of lower annular body 32b is additionally provided with one to aquaporin 37b, should be extended to one end of aquaporin 37b
The upper surface of lower annular body 32b is simultaneously connected with the bottom of annular surface cooling bath 37a, to the other end and peace of aquaporin 37b
Joint for water supply 37c connections on lower annular body 32b outer circumference surfaces；
The upper surface of lower annular body 32b is additionally provided with a backwater channel, and one end of the backwater channel connects two return water branch
Runner 38b, 39b, two return water branch flow passage 38b, 39b other ends all extend to the upper surface of lower annular body 32b and respectively with it is interior
The bottom connection of annular return slot 38a, outer ring backflash 39a, the other end connection of backwater channel are mounted on lower annular body
Backwater joint 38c on 32b outer circumference surfaces.Here, Joint for water supply 37c, backwater joint 38c access cooling water recirculation system,
And can by the control valve in cooling water recirculation system Joint for water supply 37c, backwater joint 38c to be controlled to intake respectively, draining,
Or draining simultaneously.
In order to which vacuum cup 34 is enable smoothly to realize movement, and it is more steady, reliable in moving process, as this reality
With new more specific embodiment：
As shown in figure 3, sucker accommodating chamber 33 includes, from the upper end of overlay film circle, end face sets gradually the round platform of connection downwards
Shape upper limit hole section 331, the hole section that is slidably matched 332, round table-like lower limit hole section 333 and stabilizers accommodate hole section 334；
The small end of round table-like upper limit hole section 331 and the small end of round table-like lower limit hole section 333 are respectively with being slidably matched
The upper and lower end connection of hole section 332, i.e., the big end of round table-like upper limit hole section 331 is upper, and small end is under, and round table-like lower limit
The small end of hole section 333 is upper, and big end is under；
Wherein, the big end internal diameter of round table-like upper limit hole section 331 is denoted as R21, in the small end of round table-like upper limit hole section 331
Footpath is denoted as R22, and 332 internal diameter of the hole section that is slidably matched is denoted as R23, and the small end inner diameter of round table-like lower limit hole section 333 is denoted as R24, circle
The big end internal diameter of mesa-shaped lower limit hole section 333 is denoted as R25, and the internal diameter that stabilizers accommodate hole section is denoted as R26, R22=R23=R24
＜ R25 ＜ R21 ＜ R26.
As shown in figure 4, vacuum cup 34 includes a bowl-shape sucking disk part 341 that can match with round table-like upper limit hole section 331,
One insertion is slidably matched the sliding part 342 being slidably matched in hole section 332 and with the hole section 332 that is slidably matched, one can with it is round table-like under
The /V tapering 343 and one that /V hole section 333 matches is embedded in stabilizers and accommodates in hole section 334 and accommodate hole section with stabilizers
The 334 annular stabilizers 344 being slidably matched are evenly distributed with several its own upper and lower end face of perforation in annular stabilizers 344
Stabilizers balance hole 345, bowl-shape sucking disk part 341, sliding part 342, /V tapering 343 and annular stabilizers 344 are coaxially disposed simultaneously
An entirety is in turn connected to form, and 342 axial length of sliding part is more than 332 length of hole section that is slidably matched.
Vacuum cup 34 can be positioned to first position and the second position in sucker accommodating chamber 33：
In first position, 341 lateral surface of bowl-shape sucking disk part of vacuum cup 34 is close to round table-like upper limit hole section 331
Inner wall, and bowl-shape sucking disk part 341 is fully located in the round table-like upper limit hole section 331 of sucker accommodating chamber 33；
In the second position, 343 lateral surface of /V tapering of vacuum cup 34 is close to the interior of round table-like lower limit hole section 333
The upper surface of overlay film circle 32, round table-like lower limit hole section 333 and stabilizers receiving hole are stretched out in wall, the upper end of bowl-shape sucking disk part 341
There are one the gaps of 1~2mm for tool between the step surface formed between section 334 and annular stabilizers 334.
In the present embodiment, sliding part 342, /V tapering 343 and the stabilizers 344 of vacuum cup 34 are whole by graphite block
It is processed into so that vacuum cup 34 can be moved smoothly between the first position and the second position.
In the utility model, the absorption of vacuum cup wobble effects is even because the other reasons such as negative pressure during to avoid vacuumizing
It retracts in overlay film circle, the vacuum cup of test film adsorbed state is limited into row position using mechanical stop limiter 31, knot
Structure is as follows：
It is resetted as shown in figure 5, mechanical stop limiter 31 includes mechanical position limitation housing 311, limiting piston bar 312, piston rod
Spring 313, end cap 314 vacuumize connecting tube 315, rubber limit plug 316 and locking nut 317, and concrete structure is as follows：
Mechanical position limitation housing 311, as shown in fig. 6, the mechanical position limitation housing 311 is the multi-step rotary structure of die casting,
The one end of mechanical position limitation housing 311 on the axis direction along multi-step rotary structure is limited as first end, the other end
Two ends.
On the axis direction along mechanical position limitation housing multi-step rotary structure, 311 outer surface of mechanical position limitation housing is certainly
First end is equipped with the first linkage section 3111,3112 and second linkage section 3113 of main paragraph successively to second end, in the first linkage section
3111 are equipped with to install the external thread structure of mechanical position limitation, close to the one side spiral shell of the first linkage section 3111 on main paragraph 3112
Line is connected with locking nut 317；The outer diameter of first linkage section 3111 is denoted as R1, and the outer diameter of main paragraph 3112 is denoted as R2, and second connects
The outer diameter for connecing section 3113 is denoted as R3, R1≤R3 ＜ R2；
The center of mechanical position limitation housing 311 is provided with the multi-step vestibule of perforation, is turned round along mechanical position limitation housing multi-step
On the axis direction of body structure, which is followed successively by the first cylindrical cavity 3114, tapering transition from first end to second end
Chamber 3115, the second cylindrical cavity 3116 and the 3rd cylindrical cavity 3117 are provided with internal thread structure on the inner wall of the 3rd cylindrical cavity 3117；
The internal diameter of first cylindrical cavity 3114 is denoted as R4, and the internal diameter of the second cylindrical cavity 3116 is denoted as R5, the internal diameter note of the 3rd cylindrical cavity 3117
It is R6, R4 ＜ R5 ＜ R6.
Limiting piston bar 312, as shown in fig. 7, the limiting piston bar 312 has a metal spacing tube body 3121, metal limit
The end outward flanging of position tube body 3121 forms a cyclic structure, and piston 3122 is injection molded in the cyclic structure；Metal
/V tube body 3121 is embedded in the first cylindrical cavity 3114 of mechanical position-restricted housing 311 matches somebody with somebody with the slip of 3114 inner wall of the first cylindrical cavity
It closes, and piston 3122 is embedded in the second cylindrical cavity 3116 of mechanical position-restricted housing 311 and matches somebody with somebody with the slip of 3116 inner wall of the second cylindrical cavity
It closes；And a pair is provided on metal spacing tube body 3121 and vacuumizes the first intercommunicating pore 3123.
Piston rod resetting spring 313, referring to Fig. 5, which is sleeved on metal spacing tube body 3121
Outside, and in the second cylindrical cavity of mechanical position limitation housing 3116, one end of the piston rod resetting spring 313 props up 3122 end of piston
Face, the other end are against on the step surface formed between the second cylindrical cavity 3116 and tapering transition chamber 3115.
End cap 314 as shown in figure 8, the end cap 314 is step-like rotary structure, limits end cap along end cap revolving body
One end on the axis direction of structure is the 3rd end, and the other end is the 4th end,
On the axis direction along end cap rotary structure, 314 outer surface of end cap is equipped with successively from the 3rd end to the 4th end
Locking section 3141 and outer balancing segment 3142, are provided with external thread structure in locking section 3141, and the outer diameter of locking section 3141 is denoted as
R7, the outer diameter of outer balancing segment 3142 are denoted as R8, R7 ＞ R8；The outer surface locking section 3141 of end cap 314 and mechanical position limitation housing 311
The 3rd cylindrical cavity 3117 pass through internal and external screw thread structure connection fix.
The center of end cap 314 is provided with the step vestibule of perforation, on the axis direction along end cap rotary structure, stepped hole
Chamber is equipped with the 4th cylindrical cavity 3143 and the 5th cylindrical cavity 3144, the internal diameter of the 4th cylindrical cavity 3143 successively from the 3rd end to the 4th end
R9 is denoted as, the internal diameter of the 5th cylindrical cavity 3144 is denoted as R10, R9 ＞ R10；3143 inner wall of the 4th cylindrical cavity of end cap 314 is put down with outer
The end cap balance hole 3145 of both several conductings, the 4th cylindrical cavity of end cap 314 are evenly arranged between 3142 surface of weighing apparatus section
3143 and the 5th form confined planes in annular between cylindrical cavity 3144.
Connecting tube 315 is vacuumized, as shown in figure 9, this vacuumizes connecting tube 315 as one end closed tube, outside the tube body
The internal diameter of footpath and metal spacing tube body 3121 matches, limit vacuumize the one end of connecting tube 315 on its tube body axis direction as
5th end, the other end are the 6th end,
315 center of connecting tube is vacuumized with one on its tube body axis direction from the end face at the 6th end to the 5th end to extend
And do not penetrate through the 5th end vacuumizes duct 3151, and be provided with close to vacuumizing for the 5th end in connecting tube circumferential exterior surface
The second intercommunicating pore 3152 is vacuumized with vacuumize that duct 3151 connects.In the present embodiment, vacuumizing the second intercommunicating pore 3152 has
A pair is symmetricly set on and vacuumizes in connecting tube 315.
Rubber limit plug 316, the tube body circumferential exterior surface compression molding close to the 6th end on conduit 315 is vacuumized have
For being connected fixed rubber limit plug 316 with end cap 314, referring to Fig. 9, there are one just can be embedding for the rubber limit plug 316 tool
Enter in the 5th cylindrical cavity 3144 of end cap and with the small annular solid 3161 of 3144 inner wall tight fit of the 5th cylindrical cavity, in small annular solid
3161 one end global formation is useful for limiting section 3162 in the cone in embedded end cap 314 in the 4th cylindrical cavity 3143,
The other end global formation of small annular solid 3161 has the outer limiting section 3163 of annular；The bottom surface outer diameter note of limiting section 3162 in cone
R11 is, the outer diameter of the outer limiting section 3163 of annular is denoted as R12, R10 ＜ R11 ＜ R9 ＜ R12.
Small annular solid 3161 is embedded in end cap in the 5th cylindrical cavity 3144, and 3161 and the 5th cylindrical cavity 3144 of small annular solid
Tight fit between inner wall, limiting section 3162 is embedded in end cap in the 4th cylindrical cavity 3143 in cone, and limiting section in cone
Confined planes in the annular of 3162 taper bottom surface clip end lid 314, and the outer limiting section 3163 of annular is close to the 4th end of end cap 314
Outer end face.
Connecting tube 315 is vacuumized to be arranged on the axis of mechanical position limitation housing 311, wherein, it vacuumizes in connecting tube 315
In the metal spacing tube body 3121 of the body portion insertion limiting piston bar 312 at the 5th end and with metal spacing tube body 3121
Inner wall be slidably matched, vacuumize in connecting tube 315 and be then located in close to the body portion at the 6th end by rubber limit plug 316
End cap central.
In the present embodiment, limiting piston bar 312 is made of the stainless steel tube of 8*1mm, vacuumizes connecting tube 315 using 6*
The stainless steel tube of 1mm is made, and has set up in the tube body periphery for vacuumizing the 6th end of connecting tube 315 at least that annular is recessed together
Slot 3153, the annular groove 3153 are locked for vacuumizing targeted duct when the 6th end of connecting tube 315 is connected with vacuum lead
Part.In addition, several rings are suppressed by frock on 315 outer surface of connecting tube with vacuumizing for 316 contact portion of rubber limit plug
Shape protrusion 3154, the annular protrusion 3154 are used to preferably be attached with rubber limit plug 316, it is ensured that connection is reliable.
In order to ensure a pair opened on limiting piston bar 312 vacuumizes the first intercommunicating pore 3123 can be with vacuumizing connecting tube
315 second intercommunicating pore 3152 that vacuumizes corresponds to, on the outer limiting section 3163 of annular of rubber limit plug 316 and end cap 314
The 4th end outer end face on positioning protrusion, the location hole that can coordinate are set.
The overlay film component of the utility model is used cooperatively with switching mechanism when carrying out automatic film covering, and operation principle is such as
Under：
Absorption test membrane stage：
As shown in Figure 10,11 (mechanical stop limiter not shown in Figure 11), switching mechanism control overlay film circle 32 is overturn to heap
Above folded test film, the vacuum cup 34 on overlay film circle 32 is opening down, under self gravitation effect, the limit of vacuum cup 34
343 lateral surface of position tapering is close to the inner wall of round table-like lower limit hole section 333 so that vacuum cup 34 is moved downward to second
It puts and stretches out 32 upper surface of overlay film circle, so as to engaged test film；During vacuum cup 34 moves down, due to sucker accommodating chamber
33 round table-like lower limit hole section 333 and the stabilizers of vacuum cup 34 accommodate the step surface formed between hole section 334 and annular
Between stabilizers 334 always tool there are one minimum in the gap of 1~2mm, smoothly discharge the gap using stabilizers balance hole 345
Between air, it is ensured that vacuum cup can move down in place；
Later, as shown in figure 12, that mechanical stop limiter is first connected after pumped vacuum systems startup vacuumizes connecting tube 315,
Limiting piston bar 312 stretches out the first end of mechanical position limitation housing 311 so that limiting piston bar 312 is located above vacuum cup, real
Now to the /V of vacuum cup 34,34 wobble effects of vacuum cup are adsorbed when avoiding subsequently vacuumizing；
Finally, ring vaccum chamber 35 is slightly later than mechanical stop limiter with sucker accommodating chamber 33 and connects pumped vacuum systems so that
Vacuum cup 34, which is started to work, adsorbs test film.
Complete overlay film state：
As shown in figure 13, switching mechanism control overlay film circle 32 is overturn to above detonation case so that the vacuum on overlay film circle 32
Sucker 34 is opening up,
As shown in figure 14, cutting machine limiting device and ring vaccum chamber 35 and the connection of pumped vacuum systems so that take out
Vacuum connection tube 315 and atmosphere, under the effect of piston rod resetting spring 313,312 retraction mechanical position limitation shell of limiting piston bar
The first end of body 311；
Then, as shown in figure 15 (mechanical stop limiter not shown in Figure 15), under the effect of gravity, the bowl of vacuum cup 34
341 lateral surface of shape sucking disk part is close to the inner wall of round table-like upper limit hole section 331, i.e. vacuum cup 34 is moved to first position contracting
It replies in film circle 32, bowl-shape sucking disk part 341 is fully located in the round table-like upper limit hole section 331 of sucker accommodating chamber 33, is avoided
High-temperature gas is directly impinging vacuum cup 34 during detonation；
Control valve control Joint for water supply 37c, backwater joint 38c in cooling water recirculation system are intake respectively, draining, are made
Cooling water is obtained from the inside annular return slot 38a of overflow at the top of annular surface cooling bath 37a, outer ring backflash 39a, using in ring
Cooling water surface tension absorption test film during shape overflow；
After completing an overlay film and carrying out detonation test, the control valve control Joint for water supply in cooling water recirculation system
37c, backwater joint 38c draining simultaneously, drain annular surface cooling bath 37a, annular backflash 38a, outer ring backflash 39a
Interior cooling water flows out overlay film circle when avoiding overturning again.
Claims (4)
1. a kind of steel alloy welding gas tests system overlay film component, it is characterised in that：Including
Annular body on one limits a side end face of annular body as upper surface, another side end face be lower face, upper annular ring
The one side of close inner ring periphery is inner ring side in body, is outer ring side close to the one side of outer ring periphery；
The upper annular body upper surface is provided with an annular surface cooling bath extended along upper annular body circumferencial direction, the ring
The width of shape surface cooling bath is 1.5~2.2mm, the inner ring side and outer ring side of the annular surface cooling bath be respectively arranged with
Its concentric annular backflash and outer ring backflash, and annular surface cooling bath, annular backflash, outer ring backflash
It is the straight slot of the upper upper and lower end face of annular body of perforation；
The upper surface of the upper annular body is additionally provided with the sucker being distributed in a ring centered on several Yi Shang annular body centers of circle
Accommodating chamber, between the outer circumference surface of upper annular body and outer ring backflash, the sucker accommodates the sucker accommodating chamber
Intracavitary is equipped with extended upper annular body upper surface or the in vivo vacuum cup of upper annular ring of retracting；
Several corresponding with sucker accommodating chamber and conducting limit installation hole is provided on the outer ring periphery of the upper annular body,
It is mounted in hole to be equipped with to stretch into sucker accommodating chamber or retract and the mechanical stop limiter in hole is mounted；
One has upper annular body corresponding and coaxially stacks the lower annular body set, limits in lower annular body and is close to annular ring
One side end face of body is upper surface, and another side end face is lower face；
The lower annular body upper surface is provided with a ring vaccum chamber extended along lower annular body circumferencial direction, and the annular is true
Cavity is corresponding with the sucker accommodating chamber being distributed in a ring, and ring vaccum chamber connects simultaneously with the bottom of each sucker accommodating chamber,
The vacuumizing joint connected with ring vaccum chamber is installed on the outer circumference surface of lower annular body；
The upper surface of the lower annular body is additionally provided with one to aquaporin, should extend to lower annular body to one end of aquaporin
Upper surface and connected with the bottom of annular surface cooling bath, to aquaporin the other end with mounted on lower annular body excircle
Joint for water supply connection on face；
The upper surface of the lower annular body is additionally provided with a backwater channel, and one end of the backwater channel connects two return water tributaries
Road, the two return water branch flow passage other ends all extend to the upper surface of lower annular body and are returned respectively with annular backflash, outer ring
The bottom connection of chute, the other end of backwater channel are connected with the backwater joint on lower annular body outer circumference surface.
2. steel alloy welding gas according to claim 1 tests system overlay film component, it is characterised in that：
Interior water conservancy diversion slope is provided between the annular surface cooling bath upper end notch and annular backflash, and the interior water conservancy diversion is oblique
Slope dips down along the diametric(al) of upper annular body from the annular surface cooling bath upper end inside annular return slot upper end notch of notch
Tiltedly；
Outer water conservancy diversion slope is provided between the annular surface cooling bath upper end notch and outer ring backflash, and the outer water conservancy diversion is oblique
Slope dips down along the diametric(al) of upper annular body from the annular surface cooling bath upper end outside annular return slot upper end notch of notch
Tiltedly.
3. steel alloy welding gas according to claim 1 tests system overlay film component, it is characterised in that：
The sucker accommodating chamber includes that end face sets gradually the round table-like upper limit of connection downwards from the upper end of upper annular body
Hole section, the hole section that is slidably matched, round table-like lower limit hole section and stabilizers accommodate hole section；
The small end of round table-like upper limit hole section and the small end of round table-like lower limit hole section are upper and lower with the hole section that is slidably matched respectively
End connection；The big end internal diameter of round table-like upper limit hole section is denoted as R21, and the small end inner diameter of round table-like upper limit hole section is denoted as R22, sliding
Movable fit hole section internal diameter is denoted as R23, and the small end inner diameter of round table-like lower limit hole section is denoted as R24, round table-like lower limit hole section it is big
End internal diameter is denoted as R25, and the internal diameter that stabilizers accommodate hole section is denoted as R26, R22=R23=R24 ＜ R25 ＜ R21 ＜ R26；
The vacuum cup includes the bowl-shape sucking disk part that can match with round table-like upper limit hole section, and insertion is slidably matched in hole section simultaneously
The sliding part being slidably matched with the hole section that is slidably matched, the /V tapering and insertion that can match with round table-like lower limit hole section are steady
Determine the stabilizers that portion accommodates in hole section and is slidably matched with stabilizers receiving hole section, the bowl-shape sucking disk part, sliding part, /V cone
Portion and stabilizers are in turn connected to form an entirety, and sliding part length is more than the hole section length that is slidably matched；
The vacuum cup can be positioned to first position and the second position in sucker accommodating chamber,
In first position, the bowl-shape sucking disk part lateral surface of the vacuum cup is close to the inner wall of round table-like upper limit hole section, and
Bowl-shape sucking disk part is fully located in the round table-like upper limit hole section of sucker accommodating chamber；
In the second position, the /V tapering lateral surface of the vacuum cup is close to the inner wall of round table-like lower limit hole section, bowl-shape
The upper surface of upper annular body is stretched out in the upper end of sucking disk part, is formed between round table-like lower limit hole section and stabilizers receiving hole section
There are one the gaps of 1~2mm for tool between step surface and annular stabilizers.
4. steel alloy welding gas according to claim 1 tests system overlay film component, it is characterised in that：The machinery
Limiting device includes
One mechanical position limitation housing, the mechanical position limitation housing are multi-step rotary structure, limit mechanical position limitation housing in Yan Duotai
One end on the axis direction of rank rotary structure is first end, and the other end is second end,
On the axis direction along mechanical position limitation housing multi-step rotary structure, the mechanical position limitation housing outer surface is from first
It holds to second end and is equipped with the first linkage section, main paragraph and the second linkage section successively, be equipped on the first linkage section for fitting machine
The external thread structure of tool /V, the one side on main paragraph close to the first linkage section are threaded with locking nut；First linkage section
Outer diameter be denoted as R1, the outer diameter of main paragraph is denoted as R2, and the outer diameter of the second linkage section is denoted as R3, R1≤R3 ＜ R2；
The center of mechanical position limitation housing is provided with the multi-step vestibule of perforation, along mechanical position limitation housing multi-step rotary structure
On axis direction, the multi-step vestibule is followed successively by the first cylindrical cavity, tapering transition chamber, the second cylinder from first end to second end
Chamber and the 3rd cylindrical cavity are provided with internal thread structure on the inner wall of the 3rd cylindrical cavity；The internal diameter of first cylindrical cavity is denoted as R4, and second
The internal diameter of cylindrical cavity is denoted as R5, and the internal diameter of the 3rd cylindrical cavity is denoted as R6, R4 ＜ R5 ＜ R6；
One limiting piston bar, the limiting piston bar have a metal spacing tube body, and the end of the metal spacing tube body is turned-out
Side forms a cyclic structure, and piston is injection molded in the cyclic structure；The metal spacing tube body is embedded in mechanical position limitation shell
It is slidably matched in first cylindrical cavity of body with the first cylinder cavity wall, the second cylindrical cavity of the mechanical position-restricted housing of piston insertion
It is interior to be slidably matched with the second cylinder cavity wall；And it is provided on metal spacing tube body and vacuumizes the first intercommunicating pore；
One piston rod resetting spring, the piston rod resetting spring are sleeved on outside metal spacing tube body, and positioned at mechanical position limitation housing
In second cylindrical cavity, one end of the piston rod resetting spring props up piston end surface, and the other end is against the second cylindrical cavity and taper mistake
It crosses on the step surface formed between chamber；
One end cap, the end cap are step-like rotary structure, limit end cap on the axis direction along end cap rotary structure
One end is the 3rd end, and the other end is the 4th end,
On the axis direction along end cap rotary structure, external face from the 3rd end to the 4th end successively be equipped with locking section and
Outer balancing segment is provided with external thread structure in locking section, and the outer diameter of locking section is denoted as R7, and the outer diameter of outer balancing segment is denoted as R8,
R7 ＞ R8；The outer surface locking section of the end cap is connected with the 3rd cylindrical cavity of mechanical position limitation housing by internal and external screw thread structure
It is fixed；
The center of end cap is provided with the step vestibule of perforation, on the axis direction along end cap rotary structure, the step vestibule
It is equipped with the 4th cylindrical cavity and the 5th cylindrical cavity successively from the 3rd end to the 4th end, the internal diameter of the 4th cylindrical cavity is denoted as R9, the 5th circle
The internal diameter of column chamber is denoted as R10, R9 ＞ R10；It is uniformly arranged between 4th cylinder cavity wall of the end cap and outer balance section surface
There are several end cap balance holes, confined planes in annular are formed between the 4th cylindrical cavity of end cap and the 5th cylindrical cavity；
One vacuumizes connecting tube, this vacuumizes the tube body that connecting tube is one end closing, and restriction vacuumizes connecting tube in its tube body axis
One end on line direction is the 5th end, and the other end is the 6th end,
Vacuumizing connection tube hub has one to extend on its tube body axis direction from the end face at the 6th end to the 5th end and do not pass through
Logical 5th end vacuumizes duct, and is being provided with and is vacuumizing hole in connecting tube circumferential exterior surface close to vacuumizing for the 5th end
Road connection vacuumizes the second intercommunicating pore；
Tube body circumferential exterior surface compression molding close to the 6th end on conduit is vacuumized is useful for being connected fixed rubber with end cap
Glue limit plug, rubber limit plug tool there are one can just be embedded in the 5th cylindrical cavity of end cap and with the 5th cylinder cavity wall close-fitting
The small annular solid closed is useful for limiting in the cone in embedded end cap in the 4th cylindrical cavity in one end global formation of small annular solid
There is limiting section outside annular in position portion in the other end global formation of small annular solid；The bottom surface outer diameter note of limiting section in the cone
R11 is, the outer diameter of the outer limiting section of annular is denoted as R12, R10 ＜ R11 ＜ R9 ＜ R12；
In the small annular solid insertion end cap in the 5th cylindrical cavity, and tight fit between small annular solid and the 5th cylinder cavity wall,
In the cone in limiting section insertion end cap in the 4th cylindrical cavity, and the taper bottom surface of limiting section is close in annular in cone
Confined planes, the outer limiting section of annular are close to the 4th end outer end face of end cap；
It is described vacuumize in connecting tube close to the 5th end body portion insertion limiting piston bar metal spacing tube body in and with
The inner wall of metal spacing tube body is slidably matched, and the body portion vacuumized in connecting tube close to the 6th end is positioned by rubber
Plug is located in end cap central.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721100665.5U CN207375388U (en) | 2017-08-30 | 2017-08-30 | A kind of steel alloy welding gas tests system overlay film component |
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| CN201721100665.5U CN207375388U (en) | 2017-08-30 | 2017-08-30 | A kind of steel alloy welding gas tests system overlay film component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381129A (en) * | 2017-08-30 | 2017-11-24 | 如皋市双亚环保科技有限公司 | A kind of steel alloy welding gas test system overlay film component |
| CN116494403A (en) * | 2023-06-28 | 2023-07-28 | 沈阳和研科技股份有限公司 | Vacuum gas circuit filtering device and filtering method of dicing saw |
-
2017
- 2017-08-30 CN CN201721100665.5U patent/CN207375388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381129A (en) * | 2017-08-30 | 2017-11-24 | 如皋市双亚环保科技有限公司 | A kind of steel alloy welding gas test system overlay film component |
| CN116494403A (en) * | 2023-06-28 | 2023-07-28 | 沈阳和研科技股份有限公司 | Vacuum gas circuit filtering device and filtering method of dicing saw |
| CN116494403B (en) * | 2023-06-28 | 2023-10-13 | 沈阳和研科技股份有限公司 | Vacuum gas circuit filtering device and filtering method of dicing saw |
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