CN101042041B - Suspending and balancing pressure type support safety vacuum glass - Google Patents
Suspending and balancing pressure type support safety vacuum glass Download PDFInfo
- Publication number
- CN101042041B CN101042041B CN2007100139391A CN200710013939A CN101042041B CN 101042041 B CN101042041 B CN 101042041B CN 2007100139391 A CN2007100139391 A CN 2007100139391A CN 200710013939 A CN200710013939 A CN 200710013939A CN 101042041 B CN101042041 B CN 101042041B
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- glass
- glass plate
- vacuum
- suspension
- pressure type
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- Expired - Fee Related
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/24—Making hollow glass sheets or bricks
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/6612—Evacuated glazing units
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
- E06B3/66304—Discrete spacing elements, e.g. for evacuated glazing units
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
- E06B3/6775—Evacuating or filling the gap during assembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/249—Glazing, e.g. vacuum glazing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
Abstract
A suspended and pressure equalized support safe vacuum glass comprises closely connected up and down glass plates with sealed vitreum at four sides, a vacuum cavity in the middle which is formed by up and down glass plates and which has suspended support glass plates that has support at its six sides, corner of the suspended support glass plate having degasser. The vacuum glass has small deformation rate under pressure, high strength, free from after hollow or doubling, with simple structure, low cost, fine energy saving and noise reducing effect and higher social and economical value.
Description
Technical field:
The present invention relates to the structural mechanics category, is a kind of suspension and balance pressure type support safety vacuum glass specifically, and it has safety, insulation, sound insulation value, is applicable to hardware and nonmetal structure spare.
Background technology:
As everyone knows, a vacuum tank, no matter circular still square, plate shape, for example thermos flask, bulb, fluorescence lamp, kinescope, electron image booster, vacuum flat glass etc., must satisfy five primary conditions, 1, vacuum tank spare periphery will seal, and the discord external world communicates and must keep for a long time; 2, in order to resist atmospheric pressure, need add supporter, the shape of how many visual organ spares of supporter and deciding, for example the circular support thing can be laid less, and plate shaped palpus is laid more; 3, must vacuumize; 4, must seal the path of bleeding; 5, in order to keep container vacuum not reduce, must lay getter.
The structure of existing vacuum glass door and window as shown in Figure 1, the upper and lower two blocks of glass of 1,2 representatives among Fig. 1, a represents supporter, 6 represent extract opening, 9 represent the glass edge sealer, between the upper and lower two blocks of glass of 10 expressions is vacuum state, when vacuum need reach 10-2-4Pa between upper and lower two blocks of glass, just can make conduction of heat little of the degree of can ignoring.And the vacuum glass of Fig. 1 structure, this product can't be directly installed in the public building, because do not meet safety standards for buildings, after also need make doubling glass or hollow tempered glass to the vacuum glass both sides, just can be installed in the public building.
In addition, existing vacuum glass, supporter a is subjected to the two-sided identical atmospheric pressure of upper and lower two glass plates, but when vacuum glass simultaneously is subjected to another ambient pressure, as blast, glass plate promptly deforms, as Fig. 2, when pressure was pressed onto on the glass plate 2, glass plate is distortion upwards, presses to glass plate 1 by supporter a, the glass plate distortion is the most serious around the supporter a point of centre, supporter a point pressure maximum, corresponding glass plate 1 place's pressure are also maximum, distortion is the most serious, promptly existing vacuum glass another external force easy deformation except that atmospheric pressure.
The supporter form of existing vacuum glass is cylindrical, C shape, annular, square, polygon, but cylindricality is planar with glass to be contacted, coefficient of thermal conductivity is big, annular contact surface is long-pending little, but air is discharged not smooth in the ring, even can not discharge, and then slowly disengage, cause vacuum to descend, existing vacuum glass is owing to reasons in structure, and two vacuum glass gaps have only about 0.1-0.3mm, be not easy to lay getter, what have does not lay getter, the inner surface recessing that has at a surface glass or two surface glasses, or lay getter in the one side hole that drills through on glass, destroyed strength of glass after the glass recessing, reduced tension, compressive property has increased operation easier, and outward appearance is plain.In addition, must on a face glass, hole, exhaust tube is installed by the vacuum glass that two blocks of glass are formed, the one, boring has destroyed strength of glass, and the 2nd, not attractive in appearance.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, and a kind of suspension and balance pressure type support safety vacuum glass are provided, solve mainly that existing vacuum glass can not be directly installed on the public building, lays that the getter difficulty is big, the performance of destroying glass and not attractive in appearance, problem such as tensile strength is low.
In order to achieve the above object, the present invention is achieved in that and suspends and the balance pressure type support safety vacuum glass, it comprises upper glass plate 1 and lower floor's glass plate 2, establish edge sealing vitreum 7 around upper glass plate 1 and the lower floor's glass plate 2, in the middle of it is vacuum chamber, its special character is to establish suspension support glass plate 3 in the vacuum chamber of upper glass plate 1 and lower floor's glass plate 2, suspension support glass plate 3 around than upper glass plate 1 and lower floor's glass plate 2 around little, generally in 10mm, suspension support glass plate 3 is the surrounding edge suspended state in vacuum chamber, establish first supporter 4 symmetrically on the two sides of suspension support glass plate 3, on four leptoprosopy around the suspension support glass plate 3, establish second supporter 5, on the angle of suspension support glass plate 3, establish getter 8, suspension support glass plate 3 and upper glass plate 1, lower floor's glass plate 2, closely contact between the edge sealing vitreum 7, upper glass plate 1, lower floor's glass plate 2 and suspension support glass plate 3 inner spaces communicate, and are vacuum chambers.
Suspension of the present invention and balance pressure type support safety vacuum glass, its described first supporter 4 and second supporter 5 are two open circles annulars, two opening ellipses, two open semi circles, two square openings, two open-deltas, two opening stars, two opening hexagons, two opening octagons, the polygon of two opening sub-circulars, two openings are quincunx, also can be the above-mentioned shape of many openings, the best is the annular of symmetric double opening, the interior air of ring is discharged smoothly, adopting two openings is to avoid in process of manufacture producing owing to the slit is little a mouth clogging, cause the interior air of ring can not arrange, after slowly disengage again, destroyed the vacuum glass internal vacuum, also can be many split rings, if but adopt many split rings, refer to more than three or three, contact area and intensity have then been reduced, symmetric double opening annulus has minimum contact area, minimum energy conduction and maximum support intensity; First supporter 4 and second supporter 5 can be that the glass ink printing forms, and also can be glass powder with low melting point serigraphy processing, can also be that alloy, bead, pottery or other method of laying are made.
Suspension of the present invention and balance pressure type support safety vacuum glass, can above the upper glass plate 1 or lower floor's glass plate 2 below establish the layer glass plate again, form two internal vacuum, the dual suspension balance support pressure type vacuum glass of promptly two vacuum chambers.
Suspension of the present invention and balance pressure type support safety vacuum glass, on the angle of suspension support glass plate 3, lay getter 8, the thickness of getter 8 is smaller or equal to the thickness of suspension support glass plate 3, and getter 8 can be triangle, circle, square, strip, trapezoidal, rhombus, and the best is a triangle, be located on the position at angle of suspension support glass plate 3, can can not destroy strength of glass at an angle of suspension support glass plate 3 at a plurality of angles yet, attractive in appearance, safe; The height of getter 8 is 5-20mm; Getter 8 can be non-evaporable zirconium vanadium iron, also can be other nonevaporable getter.
Suspension of the present invention and balance pressure type support safety vacuum glass, its described upper glass plate 1 and lower floor's glass plate 2 are a kind of in tempered glass, float glass, white glass, the low-reflection film glass, are preferably tempered glass; Suspension support glass plate 3 is a kind of in two-sided low-reflection film glass, single reflectance coating glass, float glass, the white glass, with two-sided low-reflection film glass serves as preferred, because low-reflection film is positioned at vacuum chamber, be on the 3rd of six faces of the vacuum chamber of forming by three blocks of glass and/or the fourth face, the inside and outside radiation of reflection room, good heat preservation performance.
Suspension of the present invention and balance pressure type support safety vacuum glass, establish extract opening 6 on its described edge sealing vitreum 7, do not lay aspirating hole in upper glass plate 1 and lower floor's glass plate 2 surface drillings, do not destroy the intensity of upper glass plate 1 and lower floor's glass plate 2, and it is attractive in appearance, edge sealing vitreum 7 is glass bar, glass pole or glass semicircle clavate, and its coefficient of expansion is consistent or close with the coefficient of expansion of upper glass plate 1 and lower floor's glass plate 2.
Suspension of the present invention and balance pressure type support safety vacuum glass also can not laid extract opening, directly vacuumize in vacuum drying oven, add heat-seal by glass powder with low melting point then, also can use solid seal glue, the sealing of solid envelope rod.
Suspension of the present invention and balance pressure type support safety vacuum glass, its one side is when the ambient pressure that is subjected to except that atmospheric pressure, as Fig. 4, supporter 4 comprises supporter a, b, c, a1, b1, c1......, supporter 5 is represented a2, when external force is pressed onto on lower floor's glass plate 2, supporter a point ambient pressure maximum, but, supports corresponding suspension support glass plate 3 because being suspension and balance pressure type, though supporter a point pressure maximum, but the pressure that supporter a is ordered is dispersed on the whole suspension support glass plate 3, suspension support glass plate 3 is by supporter a1, b1, c1...... the pressure that supporter a point is subjected to is distributed on the upper glass plate 1, the surge pressure that the supporter a1 point of upper glass plate 1 is corresponding reduces, disperse, balance the pressure of glass plate 1, glass plate 1 is stressed evenly, the pressure of upper glass plate 1 corresponding a1 only is equivalent to a/a1, b1, c1......, reduce the glass plate distortion, improved safety.
Compared with the prior art suspension of the present invention and balance pressure type support safety vacuum glass have outstanding substantive distinguishing features and marked improvement: 1, the vacuum glass that adopts three glass plates to form, because adopting, a middle glass plate suspends and the support of balance pressure type, balanced extraneous pressure distribution, strengthened tension compressive strength, upper and lower layer glass plate adopts tempered glass, float glass, Bai Bo or low-reflection film glass, particularly adopt tempered glass, this hollow plate glass can be directly installed on door and window and the curtain wall; The welding of suspension support glass plate discord periphery, this plate adopts two-sided low-reflection film glass, has improved the heat preservation and soundproof performance; This constructed products one-shot forming can directly be installed, and does not need secondary operations to become hollow-vacuum-hollow or doubling-vacuum-doubling (or hollow), and simple in structure, cost is low, saves cost; 2, supporter adopts two openings or many hatch frames, but particularly adopt two open circles ring-types to support gas in the discharge ring, avoid vacuum decay in the vacuum glass, mechanical characteristics is the support contact area with minimum, least energy conduction and maximum support power are that other shape supporter is incomparable; 3, getter is placed on 1-4 the angle of suspension support glass plate, not be used in to dig groove or drill through the hole on the upper and lower layer glass plate one or both sides plate to lay, and has improved strength of glass and security performance; When vacuum glass was installed in the door and window groove in addition, the getter position was promptly covered by groove, and outward appearance be can't see getter, increases attractive in appearance; 4, extract opening in upper and lower layer glass pane surface, on the edge sealing vitreum, has not improved intensity, increased attractive in appearance, also can uneasy aspirating hole, in vacuum drying oven, vacuumize the back and directly seal bleed-off passage with glass powder with low melting point, can also use solid seal glue, solid envelope rod to seal bleed-off passage.
Description of drawings:
Fig. 1 is the structural representation of existing vacuum glass;
Fig. 2 is the stressed state diagram when crooked of existing vacuum glass;
Fig. 3 is a structural representation of the present invention;
State diagram when Fig. 4 is Fig. 3 stressed crooked;
Fig. 5 is a kind of structural representation of supporter;
Fig. 6 is the riding position schematic diagram of getter;
Fig. 7 is the dual suspension balance support pressure type vacuum glass structural representation of two vacuum chambers;
Fig. 8 (a)-(d) is the Vitrea several structural representations of edge sealing.
The specific embodiment:
In order to understand better and to implement, provide specific embodiment below in conjunction with accompanying drawing and describe suspension of the present invention and balance pressure type support safety vacuum glass in detail.
Embodiment 1, referring to Fig. 3,5,6,8 (a)-(d), three glass plates of size cutting at first on demand, be upper glass plate 1, lower floor's glass plate 2 and suspension support glass plate 3, upper glass plate 1, lower floor's glass plate 2 measure-alike for example is 1500 * 1000mm, three blocks of glass are carried out edging, clean the processing in early stage, upper glass plate 1, lower floor's glass plate 2 carry out tempering again to be handled, and also can adopt other glass, as float glass, Bai Bo or low-reflection film glass; Suspension support glass plate 3 adopts two-sided low-reflection film glass, also can adopt a kind of in single reflectance coating glass, float glass, the white glass, and the length and width all size than upper glass plate 1, lower floor's glass plate 2 is little, for example little 1mm, generally between 0.2-10mm, size is relevant with the thickness of supporter 5, and elder generation is with its four triangular in shape cutting away in angle before the tempering, excise in highly about 20mm, reserve the position of putting triangle getter 8; On six faces of suspension support glass plate 3, evenly lay first supporter 4 and second supporter 5, first supporter 4 and second supporter 5 are the annular of symmetric double opening, also can be two opening ellipses, two open semi circle, two square opening, two open-delta, two opening star, two opening hexagon, two opening octagon, two opening sub-circulars polygon, two opening is quincunx, the above-mentioned shape of many openings, first supporter 4 of the upper and lower surface of suspension support glass plate 3 is for symmetry lays, and the mode that lays can be: use the glass ink printing; Use the glass powder with low melting point serigraphy; Use carbide alloy; Use bead; , use potsherd.Three blocks of glass are stacked together and edge sealing edge sealing vitreum 7 heating slowly together in order, and to reduce their welding stresses, heating-up temperature is below 300 ℃.10-30 minute heat time heating time, on the position at 1-4 angle of suspension support glass plate 3, lay getter 8, the thickness of getter 8 is equal to or less than the thickness of suspension support glass plate 3, getter 8 can be a triangle, circular, square, strip, trapezoidal, rhombus, getter 8 is a non-evaporable zirconium vanadium iron, also can be other nonevaporable getter, getter 8 can be laid 1 piece, 2 pieces, 3 pieces or 4 pieces, laying quantity decides according to transparency area and getter volume, be preferably 2 pieces, can prevent that one piece of getter 8 lost efficacy, the setting method of getter 8 has two kinds, a kind of is to put into the sealing getter that has activated, another kind is to put into unactivated getter, pass through glass powder with low melting point then, glass bar or glass paste, upper glass plate 1, lower floor's glass plate 2 and edge sealing vitreum 7 weld together, edge sealing vitreum 7 is a glass bar, glass pole or glass semicircle clavate, its coefficient of expansion is consistent or close with the coefficient of expansion of upper glass plate 1 and lower floor's glass plate 2, the subdrilling eyelet welding connects extract opening 6 on edge sealing vitreum 7, upper glass plate 1, lower floor's glass plate 2 and 7 sealings of edge sealing vitreum also can be used solid seal glue, admittedly sealing rod seals, but it is good to be not so good as the glass dust welding effect, after finishing, the circumference of vacuum glass welding directly vacuumizes, when vacuum reaches setting, for example 10
-2-4Sealing extract opening 6 during Pa.The sealing getter 8 that Kaifeng has been activated, or activate unactivated sealing getter 8, method is undertaken by the condition that producer provides: the exhaust that in cool-bag, heats up, undertaken by temperature-time graph table; Also can use high-frequency heating and heat radiation heating, also can use laser.Vacuumize and also can in vacuum drying oven, vacuumize energising heating with sealing extract opening 6 and finish, also can not stay aspirating hole directly in vacuum drying oven, to vacuumize and use the glass powder with low melting point heated sealant.
Claims (10)
1. suspend and the balance pressure type support safety vacuum glass, it comprises upper glass plate (1) and lower floor's glass plate (2), establish edge sealing vitreum (7) around upper glass plate (1) and the lower floor's glass plate (2), in the middle of it is vacuum chamber, it is characterized in that in the vacuum chamber of upper glass plate (1) and lower floor's glass plate (2), establishing suspension support glass plate (3), little all around than upper glass plate (1) and lower floor's glass plate (2) around the suspension support glass plate (3), establish first supporter (4) in the two sides symmetry of suspension support glass plate (3), four leptoprosopy around suspension support glass plate (3) are established second supporter (5), on the angle of suspension support glass plate (3), establish getter (8), suspension support glass plate (3) and upper glass plate (1), lower floor's glass plate (2), closely contact between the edge sealing vitreum (7), upper glass plate (1), lower floor's glass plate (2) and suspension support glass plate (3) inner space communicate, and are vacuum chambers.
2. suspension according to claim 1 and balance pressure type support safety vacuum glass, it is characterized in that described first supporter (4) and second supporter (5) for the polygon of two open circles annulars, two opening ellipse, two open semi circle, two square opening, two open-delta, two opening star, two opening hexagon, two opening octagon, two opening sub-circulars, two opening is quincunx, also can be the above-mentioned shape of many openings.
3. suspension according to claim 2 and balance pressure type support safety vacuum glass is characterized in that described first supporter (4) and second supporter (5) are the annular of symmetric double opening.
4. according to claim 1 or 2 or 3 described suspensions and balance pressure type support safety vacuum glass, it is characterized in that described first supporter (4) and second supporter (5) can be that the glass ink printing forms, also can be glass powder with low melting point serigraphy processing, can also be that alloy, bead, pottery are made.
5. suspension according to claim 1 and balance pressure type support safety vacuum glass, it is characterized in that also can establishing the layer glass plate in the top of upper glass plate (1) or the below of lower floor's glass plate (2), form two internal vacuum, i.e. the dual suspension balance support pressure type vacuum glass of two vacuum chambers.
6. suspension according to claim 1 and balance pressure type support safety vacuum glass, it is characterized in that the thickness of described getter (8) is less than or equal to the thickness of suspension support glass plate (3), getter (8) can be triangle, circle, square, strip, trapezoidal, rhombus.
7. suspension according to claim 6 and balance pressure type support safety vacuum glass, it is characterized in that described getter (8) is a triangle, can be placed in an angle of suspension support glass plate (3), also can be at a plurality of angles, the height of getter (8) is 5-20mm.
8. according to claim 6 or 7 described suspensions and balance pressure type support safety vacuum glass, it is characterized in that described getter (8) is a nonevaporable getter.
9. suspension according to claim 8 and balance pressure type support safety vacuum glass is characterized in that described getter (8) is a non-evaporable zirconium vanadium iron.
10. suspension according to claim 1 and balance pressure type support safety vacuum glass, it is characterized in that a kind of in tempered glass, float glass, white glass, the low-reflection film glass of described upper glass plate (1) and lower floor's glass plate (2), suspension support glass plate (3) be two-sided low-reflection film glass, single reflectance coating glass, float glass, a kind of in the glass in vain.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100139391A CN101042041B (en) | 2007-03-21 | 2007-03-21 | Suspending and balancing pressure type support safety vacuum glass |
| PCT/CN2008/000401 WO2008113249A1 (en) | 2007-03-21 | 2008-02-26 | Suspended and pressure-balanced weight-bearing evacuated safety glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100139391A CN101042041B (en) | 2007-03-21 | 2007-03-21 | Suspending and balancing pressure type support safety vacuum glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101042041A CN101042041A (en) | 2007-09-26 |
| CN101042041B true CN101042041B (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100139391A Expired - Fee Related CN101042041B (en) | 2007-03-21 | 2007-03-21 | Suspending and balancing pressure type support safety vacuum glass |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101042041B (en) |
| WO (1) | WO2008113249A1 (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042041B (en) * | 2007-03-21 | 2010-08-11 | 王汉清 | Suspending and balancing pressure type support safety vacuum glass |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2008113249A1 (en) | 2008-09-25 |
| CN101042041A (en) | 2007-09-26 |
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