CN108561410A - A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device - Google Patents

A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device Download PDF

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Publication number
CN108561410A
CN108561410A CN201810310083.2A CN201810310083A CN108561410A CN 108561410 A CN108561410 A CN 108561410A CN 201810310083 A CN201810310083 A CN 201810310083A CN 108561410 A CN108561410 A CN 108561410A
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CN
China
Prior art keywords
piston
pedestal
negative pressure
pressure
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810310083.2A
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Chinese (zh)
Inventor
茹子俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A Source Of Shishi Clothing Ltd Co
Original Assignee
A Source Of Shishi Clothing Ltd Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A Source Of Shishi Clothing Ltd Co filed Critical A Source Of Shishi Clothing Ltd Co
Priority to CN201810310083.2A priority Critical patent/CN108561410A/en
Publication of CN108561410A publication Critical patent/CN108561410A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B47/00Suction cups for attaching purposes; Equivalent means using adhesives
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G29/00Supports, holders, or containers for household use, not provided for in groups A47G1/00-A47G27/00 or A47G33/00 
    • A47G29/087Devices for fastening household utensils, or the like, to tables, walls, or the like
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet

Abstract

A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device, the pressure-display device includes mainly piston cap, piston bush, spring and piston, the piston cap of the heart is equipped with piston cap aperture in the spring, piston is made of one, piston, piston rod and two, piston, one end of piston rod is fixed on one, piston, and the other end of piston rod is equipped with the threaded hole being recessed to one direction of piston;It is pressed on soft sealing pad circle by pedestal, making between pedestal and body surface will not gas leakage, suction hole is equipped on pedestal, check valve is set on suction hole, start aspirator vacuum pump to extract the air in pedestal out, pedestal endoporus is set to form negative pressure, to make pedestal suck on a surface of an, it can be by the hanging rod component that is connected on pedestal come suspended item, pressure-display device is equipped on pedestal, it can be by the negative pressure variation in lens inspection pedestal, so as to which when negative pressure is inadequate, pumping forms the negative pressure for meeting and needing in time.

Description

A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device
Technical field
The present invention relates to a kind of pressure-display device and the suction cup suspension members of this pressure-display device of selection, belong to sucker neck The technology in domain.
Background technology
Vacuum cup can be adsorbed on the surfaces such as glass, ceramic tile, for hanging or capturing object.Since vacuum cup can Random running transform position, so very easy to use.
Vacuum cup generally uses silicon rubber or PVC material or polyurethane or nitrile rubber or the polymer etc. containing vinyl The certain rigidity of tool is made with certain flexible plastic material again.The structure of most of vacuum cup is hollow-cone body, Sucker wall surface towards body surface is the taper that is recessed upwards of middle part, sucker is against after body surface to object table when use In the middle part of the pressing sucker of face, so that the air in the conical cavity of sucker is extruded, then decontrol sucker, process of the sucker in self-resetting In generate negative pressure in the conical cavity of sucker, so that sucker is adsorbed on the surface of article, or sucker is against body surface It extracts sucker chamber air again afterwards, sucker intracavitary is made to form negative pressure so as to suck on the surface of object.This kind of sucker be by Material with certain deformability makes, and sucker makes sucker generation deformation to generate suction by the deformation or pumping of itself, The inner wall of sucker and edge are resetted the inside pulling force generated by sucker when in use, and the rigidity of chuck surface is not It is too strong, it is possible to be deformed inward under the action of this inside pulling force, also, existing sucker, when the negative pressure in sucker It is difficult to observe when reduction, usually to fall down from body surface to sucker just finds.
It is, thus, sought for a kind of suction of the more rigid negative pressure condition for being not easy to be deformed inward and sucker capable of being observed Disk.
Invention content
The purpose of the present invention is:A kind of more rigid negative pressure for being not easy to be deformed inward and can observe sucker inner cavity is provided The sucker of situation.
The technical scheme is that:A kind of pressure-display device, the pressure-display device include mainly piston cap 6, piston bush 7, spring and piston 8, the piston cap of the heart is equipped with piston cap aperture in the spring, and piston is by one, piston, piston rod With two compositions of piston, one end of piston rod is fixed on one, piston, and the other end of piston rod is equipped with to one direction of piston The threaded hole of recess, two, piston are screwed in the threaded hole of piston-rod end;It is living that one end of spring is fixed on piston cap direction On the end face of plug sleeve, the other end of spring is fixed on one, piston, and one, piston and the endoporus of piston bush form tight fit, will Piston cap is screwed on the open end of piston bush, and piston rod is made to be exposed from the rod aperture on piston bush blind end, then will Two, piston is screwed in the threaded hole of piston-rod end, and the diameter of piston rod is less than the aperture of rod aperture.
The suction cup suspension member for selecting pressure-display device, mainly by soft sealing pad circle 1, pedestal 2, check valve and hanging rod group Part 3 forms, and hanging rod component placement is on pedestal;It is additionally provided with pressure port 24 on pedestal, pressure display dress is installed on pressure port It sets;Suction hole 21 is equipped on pedestal wall surface, check valve is placed on suction hole.
The suction tank being recessed to the direction of negative pressure space is equipped on pedestal wall surface, suction hole is one group in suction tank The through-hole of axis mean array in air-breathing groove bottom wall communicated with negative pressure space, check valve are placed in suction tank, vacuum suction The inlet end of pump and the inner wall of suction tank coordinate.
Piston bush is injected into pressure port outside pedestal, piston cap is made to enter in the negative pressure space of pedestal, with a hand from base The negative pressure space clamping piston set of the export-oriented pedestal of seat, screws piston bush from the negative pressure space of pedestal with another hand, makes piston bush It is screwed in pressure port inner wall, then hanging rod component is fixed on pedestal, pressure port is made to be located in the coverage area of peep hole;Work as base When the negative pressure space of seat is consistent with external air pressure, tension force of spring to piston bush blind end, at this moment, lives on one crown of piston Two crowns are filled in lens;When the air of the negative pressure space of pedestal is pumped, after negative pressure space forms negative pressure, the suction of negative pressure space Overcome tension force of spring, piston is pulled into negative pressure space, until on piston two crown to piston bush outer wall, it is separate in two, piston The end of piston rod coats color, and gradient color is coated in peep hole and pressure port inner wall, by observation positioned at two, piston and thoroughly The color change of peep hole and pressure port between mirror, it will be able to know the negative pressure variation of pedestal endoporus.
Advantageous effect
1, be pressed on soft sealing pad circle by pedestal, make between pedestal and body surface will not gas leakage, set on pedestal There is suction hole, check valve is set on suction hole, starts aspirator vacuum pump and extract the air in pedestal out, pedestal endoporus is made to be formed Negative pressure, to make pedestal suck on a surface of an, it will be able to by the hanging rod component that is connected on pedestal come suspended item, Pedestal is equipped with pressure-display device, can be by the negative pressure variation in lens inspection pedestal, so as to when negative pressure is inadequate Pumping forms the negative pressure for meeting and needing in time.
Description of the drawings
Fig. 1 is the three-dimensional appearance schematic diagram of the present invention;
Fig. 2 is pop figure of the present invention in addition to hook portion;
Fig. 3 is the partial cutaway schematic of the present invention;
Fig. 4 is the partial enlarged view of Fig. 3;
Fig. 5 is the dimensional structure diagram of the pedestal of the present invention;
Fig. 6 is the dimensional structure diagram of the hanging rod component of the present invention.
Specific implementation mode
As shown in Fig. 1 to Fig. 6, select the suction cup suspension member of pressure-display device, mainly by soft sealing pad circle 1, pedestal 2, Check valve and hanging rod component 3 form, and hanging rod component placement is on pedestal.Pedestal is equipped with towards the middle part of body surface to separate The negative pressure space of the direction recess of body surface, on a surface of an by seal washer pressure, seal washer is using soft for pedestal Material makes, such as silicon rubber, PVC material etc., can either have certain deformation under the pressure of pedestal, and with airtight Property.There is ceramic tile to stitch or have small protrusion or recess on body surface, pedestal and object are just realized by the deformation of seal washer Sealing between surface makes air that can not circulate by the gap between pedestal and body surface.
Hanging rod component is socketed or screws or be placed on pedestal using other manner, can also be by hanging rod component directly and base Seat is fixed together, such as by hanging rod components welding in base outer wall.
Suction hole 21 is equipped on pedestal wall surface, check valve is placed on suction hole.Suction cup suspension member is hung over into object table On face, first with pedestal by seal washer pressure on a surface of an, then by the inlet end of aspirator vacuum turbomolecular vacuum pump and check valve phase Even, start aspirator vacuum pumping gas, aspirator vacuum pump is outside by suction hole and check valve by the air of the negative pressure space of pedestal Extraction, makes the negative pressure space air of pedestal reduce to form negative pressure, to make pedestal suck on a surface of an;The pedestal is adopted It is made of hard material, such as stainless steel and other metal materials or rigid plastics etc..When production, pedestal is integrally formed, in application Pedestal not will produce deformation in the process, but so that pedestal is sucked on a surface of an by vacuumizing.Since pedestal is hard material What material made, and body surface there is a situation where uneven, therefore, it is necessary to block body surface and base using seal washer Gap between seat.
After suction cup suspension member sucks on a surface of an, air pump is taken away, due to being provided that check valve on suction hole, because This, extraneous air can not enter negative pressure space by suction hole, in this way, it is possible to which weight is hung on hanging rod component.
Aspirator vacuum pump is selected to the aspiration pump of vacuum bag air exhaust.
It is additionally provided with pressure port 24 on pedestal, pressure-display device is installed on pressure port, correspondingly, on hanging rod component Setting peep hole corresponding with pressure port, mounted lens 9 on peep hole can observe pressure-display device, i.e., by lens The vacuum magnitude in pedestal can be watched by pressure-display device, when the negative pressure in pedestal is less than normal it is necessary to true with pumping in time Empty pumping gas makes the negative pressure in the negative pressure space of pedestal enhance, suction cup suspension member is made more tightly to adsorb on a surface of an.
The pressure-display device includes mainly piston cap 6, piston bush 7, spring and piston 8, the in the spring work of the heart Cock cap is equipped with piston cap aperture, and piston is made of one, piston, piston rod and two, piston, and one end of piston rod is fixed on piston On one, the other end of piston rod is equipped with the threaded hole being recessed to one direction of piston, and two, piston is screwed in piston-rod end Threaded hole in;One end of spring is fixed on piston cap towards on the end face of piston bush, and the other end of spring is fixed on piston one On head, one, piston and the endoporus of piston bush form tight fit, and piston cap is screwed on the open end of piston bush, piston rod is made Exposed from the rod aperture on piston bush blind end, then by piston two be screwed in the threaded hole of piston-rod end, Under tension force of spring effect, one crown of piston the blind end of piston bush, and two, piston is exposed from pressure port, two, piston Outer diameter be less than the endoporus of peep hole and pressure port.
The diameter of piston rod is less than the aperture of rod aperture.Piston bush is injected into pressure port outside pedestal, make piston cap into Enter in the negative pressure space of pedestal, with a hand from the negative pressure space clamping piston set of pedestal extroversion pedestal, with another hand from base The negative pressure space of seat screws piston bush, so that piston bush is screwed in pressure port inner wall, then hanging rod component is fixed on pedestal, makes pressure Power hole is located in the coverage area of peep hole.
When the negative pressure space of pedestal is consistent with external air pressure, tension force of spring is by one crown of piston to piston sleeve Closed end, at this moment, two crown of piston to lens.
When the air of the negative pressure space of pedestal is pumped, after negative pressure space forms negative pressure, the suction of negative pressure space overcomes bullet Piston is pulled to negative pressure space by the tension of spring, until on piston two crown to piston bush outer wall, in two separate piston rods of piston End coat color, coat gradient color in peep hole and pressure port inner wall, two, piston be located between lens by observation Peep hole and pressure port color change, it will be able to know the negative pressure variation of pedestal endoporus.Due to one, piston and piston bush Endoporus forms tight fit, due to being equipped with piston cap aperture on piston cap, makes one, the negative pressure space of pedestal and piston to piston cap Between piston bush endoporus be connected, after negative pressure space forms negative pressure, one, piston to the piston bush endoporus between piston cap Also form the identical negative pressure of pressure, negative pressure inhalation-activated piston one is moved to the direction of piston cap, due to one, piston to lens it Between space be also sealing space, air here will with piston one thin out to moving for piston cap, To also form negative pressure, also, by the position-limiting action of piston bush, as long as on two tops to piston bush of piston, no matter in pedestal Negative pressure has much, and two, piston cannot all be moved to negative pressure space again, i.e., negative in pedestal on two crown to piston bush of piston It presses the negative pressure in space with regard to sufficiently large, the article suspension of corresponding weight can be born, but when two, piston cannot push up on piston bush And movement is generated to the direction of lens, it is very enough just to illustrate the negative pressure in pedestal not, and two, piston is more mobile to lens, just Indicate that the negative pressure in pedestal is smaller.So as to according to two amplitudes less than normal with the Distance Judgment negative pressure of lens of piston, due to Two, piston, which be in lens on same axis, to be inconvenient to observe the distance between two lens of piston, therefore, pressure port with Gradient color is arranged in peep hole inner wall, by lens it can be seen that pressure port and the exposed gradient color of peep hole inner wall, to The size of pedestal endoporus negative pressure can be relatively accurately judged, thus whether to need to be evacuated the foundation for providing decision to pedestal.
For the vacuum magnitude in display base, pressure gauge, pressure gauge can also be used to be placed in the peep hole below lens It is interior, negative pressure value that can be in more accurate display base.
The suction tank being recessed to the direction of negative pressure space is equipped on pedestal wall surface, suction hole is one group in suction tank The through-hole of axis mean array in air-breathing groove bottom wall communicated with negative pressure space, check valve are placed in suction tank, vacuum suction The inlet end of pump and the inner wall of suction tank coordinate.The air of negative pressure space is outside by suction hole under the action of aspirator vacuum pumps Flowing, negative pressure is formed to make negative pressure space air reduce.
The check valve includes valve block 4 and sheath 5, and sheath edge is equipped with a circle venthole 51, and the edge of valve block is located at In the view field of venthole, venthole is located in the view field of valve block.
Sheath is surrounded by the external screw thread to match with the internal thread of suction tank endoporus, and a circle is equipped in air-breathing groove bottom wall Around the positioning column of suction hole, valve block is placed in the air-breathing groove bottom wall between positioning column, in positioning column and air-breathing channel opening Suction tank inner wall between end is equipped with an inwardly projecting circle flange, then sheath is screwed to suction tank endoporus by venthole In, until sheath arrives to flange, the height of positioning column is more than the thickness of valve block.
The inlet end of vacuum pump and the inner wall of suction tank coordinate, when needing to vacuumize, with pedestal first by seal washer It compresses on a surface of an, then the inlet end of vacuum pump is connected with suction tank, starts vacuum pump, vacuum pump Powerful air-breathing so that valve block is moved to the direction of sheath, valve block leaves suction hole, and the air in the negative pressure space of pedestal is in vacuum Under the suction of aspiration pump, pass sequentially through suction hole, venthole enters vacuum pump, formed in negative pressure space increasing negative Pressure, vacuum pump are stopped, and valve block is drawn to air-breathing groove bottom wall by the powerful negative pressure of negative pressure space, and valve block covers suction hole, Make negative pressure space and extraneous isolation completely.
Suction tank bottom wall central between suction hole 21 is equipped with the indent 22 to lower recess, correspondingly, at sheath center Equipped with pressure hole 52 corresponding with indent, valve block is covered on indent and suction hole.
When removing suction cup suspension member from body surface, is put in and withstood on from the pressure hole at sheath center with rod-like instrument On valve block, firmly to the direction overhead-valve piece of indent, the middle part of valve block will be pressed into indent, and the surrounding of valve block will be to middle part It is mobile, to prevent part suction hole from being covered by valve block, the negative pressure space of pedestal will by venthole on sheath and The extraneous air of suction hole sucking, makes the air pressure balance inside and outside pedestal, to be easy to remove pedestal from body surface.
The inner wall of the hanging rod component 3 is equipped with the bayonet 31 to inner process, correspondingly, being equipped with and hanging rod group on pedestal The corresponding card slot 23 of bayonet on part, hanging rod component is fixed on by the card slot for packing into bayonet on pedestal on pedestal, in hanging rod Component is equipped with hook 32.
Hook is provided with various ways, and a kind of mode is that a pocket for the punch head, hook sleeve is arranged in the outer wall of hanging rod component On pocket for the punch head, when installation, pocket for the punch head is made to link up with upward downward.
For convenience of sheath is screwable into suction tank, by the pressure hole at sheath center make with interior hex tool it is mating in six Interior hex tool when needing to screw out by sheath precession suction tank or from suction tank, is inserted entering pressure hole rotation and can be realized as by corner apertures.
Above-described embodiment is intended merely to the purposes of the interpretation present invention, and is not limitation of the present invention, this technology The those of ordinary skill in field makes a variety of changes or substitutes in the essential scope of the present invention, should also belong to the guarantor of the present invention Protect scope.

Claims (4)

1. a kind of pressure-display device, it is characterised in that:The pressure-display device includes mainly piston cap (6), piston bush (7), spring and piston (8), the piston cap of the heart is equipped with piston cap aperture in the spring, and piston is by one, piston, piston rod and work Two compositions of plug, one end of piston rod are fixed on one, piston, and the other end of piston rod, which is equipped with to one direction of piston, to be recessed Threaded hole, two, piston is screwed in the threaded hole of piston-rod end;One end of spring is fixed on piston cap towards piston bush End face on, the other end of spring is fixed on one, piston, and one, piston and the endoporus of piston bush form tight fit, by piston Cap is screwed on the open end of piston bush, and piston rod is made to be exposed from the rod aperture on piston bush blind end, then by piston Two are screwed in the threaded hole of piston-rod end, and the diameter of piston rod is less than the aperture of rod aperture.
2. selecting the suction cup suspension member of pressure-display device described in claim 1, it is characterised in that:Mainly by soft sealing pad circle (1), pedestal (2), check valve and hanging rod component (3) composition, hanging rod component placement is on pedestal;Pressure is additionally provided on pedestal Hole (24), installs pressure-display device on pressure port;Suction hole (21) is equipped on pedestal wall surface, check valve is placed in air-breathing Kong Shang.
3. suction cup suspension member according to claim 2, it is characterised in that:It is equipped with to the direction of negative pressure space on pedestal wall surface The suction tank of recess, suction hole is one group, and around suction tank axis, mean array is communicated with negative pressure space in air-breathing groove bottom wall Through-hole, check valve is placed in suction tank, and the inlet end of vacuum pump and the inner wall of suction tank coordinate.
4. suction cup suspension member according to claim 2, it is characterised in that:Piston bush is injected into pressure port outside pedestal, makes work Cock cap enters in the negative pressure space of pedestal, with a hand from the negative pressure space clamping piston set of pedestal extroversion pedestal, uses another Hand screws piston bush from the negative pressure space of pedestal, so that piston bush is screwed in pressure port inner wall, then hanging rod component is fixed on pedestal On, so that pressure port is located in the coverage area of peep hole;When the negative pressure space of pedestal is consistent with external air pressure, spring Tension by one crown of piston to piston bush blind end, at this moment, two crown of piston to lens;When the air quilt of the negative pressure space of pedestal It takes away, after negative pressure space forms negative pressure, the suction of negative pressure space overcomes tension force of spring, and piston is pulled to negative pressure space, until On piston two crown to piston bush outer wall, color is coated in two ends far from piston rod of piston, in peep hole and pressure port Inner wall coats gradient color, by observation positioned at the color change of peep hole and pressure port of two, the piston between lens, energy Enough know the negative pressure variation of pedestal endoporus.
CN201810310083.2A 2017-02-25 2017-02-25 A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device Pending CN108561410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810310083.2A CN108561410A (en) 2017-02-25 2017-02-25 A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710107563.4A CN106763111B (en) 2017-02-25 2017-02-25 Sucker pendant with pressure display device
CN201810310083.2A CN108561410A (en) 2017-02-25 2017-02-25 A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device

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CN201710107563.4A Division CN106763111B (en) 2017-02-25 2017-02-25 Sucker pendant with pressure display device

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CN108561410A true CN108561410A (en) 2018-09-21

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CN201710107563.4A Active CN106763111B (en) 2017-02-25 2017-02-25 Sucker pendant with pressure display device
CN201810310083.2A Pending CN108561410A (en) 2017-02-25 2017-02-25 A kind of pressure-display device and the suction cup suspension member for selecting this pressure-display device

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CN201710107563.4A Active CN106763111B (en) 2017-02-25 2017-02-25 Sucker pendant with pressure display device

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104295594A (en) * 2014-11-07 2015-01-21 李富雄 Vacuum adsorbing hook
CN204284175U (en) * 2014-08-28 2015-04-22 科斯特(厦门)节水设备有限公司 A kind of high negative pressure composite ganoine sucker
CN105004471A (en) * 2015-07-10 2015-10-28 贵州大学 Pressure sensing method and sensor probe utilizing method
CN204729452U (en) * 2015-06-29 2015-10-28 潘生明 A kind of Novel sucker
CN204788770U (en) * 2015-07-10 2015-11-18 贵州大学 Double -piston symmetry damping formula optic fibre differential pressure sensor probe
CN106438659A (en) * 2016-11-01 2017-02-22 晋江市东亨工业设计有限公司 Air suction cup

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101046468B1 (en) * 2011-05-11 2011-07-04 김도연 Vacuum suction port
CN206468674U (en) * 2017-02-25 2017-09-05 中山市元亨家居用品有限公司 Sucker pendant with pressure display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204284175U (en) * 2014-08-28 2015-04-22 科斯特(厦门)节水设备有限公司 A kind of high negative pressure composite ganoine sucker
CN104295594A (en) * 2014-11-07 2015-01-21 李富雄 Vacuum adsorbing hook
CN204729452U (en) * 2015-06-29 2015-10-28 潘生明 A kind of Novel sucker
CN105004471A (en) * 2015-07-10 2015-10-28 贵州大学 Pressure sensing method and sensor probe utilizing method
CN204788770U (en) * 2015-07-10 2015-11-18 贵州大学 Double -piston symmetry damping formula optic fibre differential pressure sensor probe
CN106438659A (en) * 2016-11-01 2017-02-22 晋江市东亨工业设计有限公司 Air suction cup

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Publication number Publication date
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CN106763111A (en) 2017-05-31

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Application publication date: 20180921

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