CN207527039U - pressure difference sealing structure - Google Patents
pressure difference sealing structure Download PDFInfo
- Publication number
- CN207527039U CN207527039U CN201721489268.1U CN201721489268U CN207527039U CN 207527039 U CN207527039 U CN 207527039U CN 201721489268 U CN201721489268 U CN 201721489268U CN 207527039 U CN207527039 U CN 207527039U
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- Prior art keywords
- sealing
- layer
- contact
- pressure difference
- periphery
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 247
- 239000000853 adhesive Substances 0.000 claims abstract description 31
- 230000001070 adhesive effect Effects 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 239000000806 elastomer Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
The utility model discloses a kind of pressure difference sealing structures.The pressure difference sealing structure includes sealing bottom, layer in sealing contact and adhesive linkage.The pressure difference sealing structure and it can either be used for static seal using the pressure difference encapsulating method of the pressure difference sealing structure, it can be used in dynamic sealing again, it is especially suitable for the sealing that both sides have pressure differential, as used on the vacuum structure with negative pressure, layer wherein in sealing contact can be directly attached to position to be sealed, since layer in sealing contact is elastomer, in the presence of having pressure differential in layer both sides in sealing contact, position to be sealed can be fitted tightly on, and the elasticity modulus for sealing bottom is larger, layer in sealing contact can be given to provide a good pressure and its intensity guarantee, layer in sealing contact is prevented to be inhaled under the action of pressure at both sides difference in the gap at position to be sealed.Thus the pressure difference encapsulating method sealing effect of above-mentioned pressure difference sealing structure and use the pressure difference sealing structure is good, flexible and convenient to use.
Description
Technical field
The utility model is related to device sealing field, more particularly, to a kind of pressure difference sealing structure.
Background technology
Sealing is to prevent liquid or solid particle from revealing and preventing introduced contaminants between adjacent faying face, such as dust and water
The safeguard measure of parts inside intrusion machinery equipment of grading.Sealing is often realized by sealing structure.Sealing can be divided into quiet
Sealing and two major class of dynamic sealing.Dynamic sealing can be divided into two kinds of fundamental types of rotatory sealing and reciprocation sealing.Traditional exhausted big portion
Point sealing structure is mainly used for static sealing, and dynamic sealing is relatively fewer, particularly the dynamic sealing with vacuum degree, and tradition
Sealing structure can not meet existing rotation, gap big sealing again.
Utility model content
Based on this, it is necessary to which static seal can be used for and be used for the pressure difference sealing structure of dynamic sealing by providing one kind.
The technical solution that the utility model solves above-mentioned technical problem is as follows.
A kind of pressure difference sealing structure, including sealing bottom, layer in sealing contact and adhesive linkage；The two of the layer in sealing contact
Side is respectively joint face and the contact surface for being bonded with position to be sealed, between the joint face and the sealing bottom
It is connected by the adhesive linkage；The periphery of the adhesive linkage is located within the periphery of the layer in sealing contact, so that the connection
Part of the face between the periphery of the layer in sealing contact and the periphery of the adhesive linkage expose to it is described sealing bottom and/or
Gap is formed between the sealing bottom；The layer in sealing contact is elastomer, and the rigidity of the layer in sealing contact is more described
The rigidity for sealing bottom is small.
The periphery of the adhesive linkage also is located within the periphery of the sealing bottom in one of the embodiments, so that
At least gap is formed between part layer in sealing contact and the sealing bottom.
The periphery of the layer in sealing contact is flushed with the periphery of the sealing bottom in one of the embodiments,；It is described
Adhesive linkage is located at the middle part of the layer in sealing contact.
The ratio of the width of the adhesive linkage and the width of sealing bottom is 1 in one of the embodiments,:10~1:1.
The elasticity modulus of the layer in sealing contact is described close in the range of 1.0~100Pa in one of the embodiments,
The elasticity modulus of back cover layer is in the range of 10~10000Pa, and the elasticity modulus of the layer in sealing contact is not more than the sealing
The elasticity modulus of bottom.
The sealing bottom is plastic layer, metal layer, rubber layer or layer of silica gel in one of the embodiments,；
The layer in sealing contact is rubber layer；
The adhesive linkage is epoxy resin layer, rubber layer or layer of silica gel.
The thickness of the sealing bottom is more than the thickness of the layer in sealing contact in one of the embodiments,.
The thickness of the layer in sealing contact is in the range of 0.5~5mm in one of the embodiments, the sealing bottom
Thickness in the range of 2~10mm, and when the layer in sealing contact with it is described sealing bottom be rubber layer when, the sealing connects
The thickness of contact layer is more than the thickness of the sealing bottom.
The joint face is located at the periphery of the layer in sealing contact and the week of the adhesive linkage in one of the embodiments,
Periphery and institute of the surface of the direction joint face in region, and/or the sealing bottom between edge in the sealing bottom
The region stated between the periphery of adhesive linkage is equipped with anti-stick coating.
The sealing bottom and the layer in sealing contact are laminated structure in one of the embodiments,.
Above-mentioned pressure difference sealing structure can either be used for static seal, and can be used in dynamic sealing, and being especially suitable for both sides has pressure
The sealing of force difference, as used on the vacuum structure with negative pressure, wherein layer in sealing contact can be directly attached to portion to be sealed
Position since layer in sealing contact is elastomer, in the presence of having pressure differential in layer both sides in sealing contact, can fit tightly on
Position to be sealed, and the elasticity modulus for sealing bottom is larger, layer in sealing contact can be given to provide a good pressure and its intensity
It ensures, layer in sealing contact is prevented to be inhaled under the action of pressure at both sides difference in the gap at position to be sealed.Thus above-mentioned pressure difference
Sealing structure sealing effect is good, flexible and convenient to use.
Description of the drawings
Fig. 1 is the structure diagram of the pressure difference sealing structure of an embodiment；
Fig. 2 is the structure diagram of the pressure difference sealing structure of another embodiment；
Fig. 3 is the structure diagram of the pressure difference sealing structure of another embodiment；
Fig. 4 is for the pressure difference sealing structure of dynamic sealing and the fit structure schematic diagram at position to be sealed in embodiment 1；
Fig. 5 is for the pressure difference sealing structure of static seal and the fit structure schematic diagram at position to be sealed in embodiment 2.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is the public affairs made to the utility model
Open the understanding more thorough and comprehensive of content.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
The arbitrary and all combination of one or more relevant Listed Items.
As shown in Figure 1, the pressure difference sealing structure 100 of an embodiment include sealing bottom 110, layer in sealing contact 120 with
And adhesive linkage 130.The two sides of layer 120 in sealing contact are respectively joint face 122 and for being connect with what position to be sealed was bonded
Contacting surface 124.It is connected between the joint face 122 of layer 120 in sealing contact and sealing bottom 110 by adhesive linkage 130.
In the present embodiment, sealing bottom 110 has certain rigidity, and layer in sealing contact 120 is elastomer, is had
Certain flexibility and elasticity.Layer 120 in sealing contact may be the same or different with sealing the material of bottom 110, as long as full
The rigidity of foot sealing bottom 110 is big compared with the rigidity of layer 120 in sealing contact namely sealing 110 phase of bottom is compared with layer 120 in sealing contact
It is more difficult to be bent and deform.As in a specific embodiment, the elasticity modulus of layer 120 in sealing contact is in 1.0~100Pa
In the range of, the elasticity modulus of bottom 110 is sealed in the range of 10~10000Pa, and the elastic module of layer in sealing contact 120 is little
In sealing bottom 110 elasticity modulus, such as layer 120 in sealing contact elasticity modulus can further in the range of 1.0~10Pa,
The elasticity modulus of bottom 110 is sealed in the range of 100~10000Pa；Or the elasticity modulus of layer 120 in sealing contact 3.0~
In the range of 5.0Pa, the elasticity modulus of bottom 110 is sealed in the range of 1000~5000Pa；Or the bullet of layer 120 in sealing contact
Property modulus for 3Pa, 5Pa, 8Pa etc., the elasticity modulus of sealing bottom 110 is 1200Pa, 5000Pa, 8000Pa etc.；It is or close
The elasticity modulus of sealing-in contact layer 120 is identical with the elasticity modulus for sealing bottom, in the range of 10~100Pa, is such as
10Pa, 20Pa, 30Pa etc..
It can be the gold such as the plastic layers such as polyethylene, polypropylene or polyvinyl chloride or iron, copper, aluminium to seal bottom 110
Belong to layer, can also be rubber layer or layer of silica gel etc.；Layer 120 in sealing contact can be rubber layer.When sealing bottom 110 connects with sealing
The material of contact layer 120 is identical or elasticity modulus, bending strength are when performances are similar, and the thickness of sealing bottom 110 is greater than sealing
The thickness of contact layer 120, so that sealing bottom 110 is more difficult to bending or deformation compared with layer 120 in sealing contact.It is specific real at one
It applies in example, the thickness of layer 120 in sealing contact seals the thickness of bottom 110 in the range of 2~10mm in the range of 0.5~5mm,
And when layer 120 in sealing contact is rubber layer with the sealing bottom, the thickness of the layer in sealing contact is more than the sealing
The thickness of bottom, such as thickness of layer 120 in sealing contact seal the thickness of bottom 110 in 2~10mm models in the range of 0.5~2mm
In enclosing；For another example the thickness of layer 120 in sealing contact seals the thickness of bottom 110 in 2~10mm ranges in the range of 0.5~1mm
It is interior；For another example the thickness of layer 120 in sealing contact seals the thickness of bottom 110 in the range of 5~10mm in the range of 1~1.5mm；
For another example the thickness of layer 120 in sealing contact seals the thickness of bottom 110 in the range of 5~8mm in the range of 2~3mm；Particularly
When layer 120 in sealing contact is identical with the material for sealing bottom 110, the thickness of sealing bottom 110 is significantly larger than layer in sealing contact
120 thickness, such as thickness of layer 120 in sealing contact are 0.5mm, and sealing bottom 110 is 8~10mm etc..
Adhesive linkage 130 can be a variety of glue-lines such as epoxy resin layer, rubber layer or layer of silica gel.
It is laminated structure that bottom 110, which is sealed, with being tightly connected layer 120, can be variously-shaped, such as disk, square sheet
Or strip sheet etc., to adapt to different sealing occasion demands.
In the present embodiment, the surface area of adhesive linkage 130 is smaller than the surface of layer 120 in sealing contact, and adhesive linkage
130 periphery will be located within the periphery of layer 120 in sealing contact.It please join Fig. 1, Fig. 2 and Fig. 3, in different specific embodiments,
The periphery of adhesive linkage 130 can be with seal the periphery of bottom 110 flush or positioned at sealing bottom 110 periphery it
It is interior so that at least part layer 120 in sealing contact and sealing bottom 110 between be formed with gap；And seal the periphery of bottom 110
Can be located at sealing adhesive linkage 130 periphery except, within or flush, as long as ensure be tightly connected layer 120 joint face
122 be located at layer 120 in sealing contact periphery and adhesive linkage 130 periphery between parts expose to sealing bottom 110 and/or with
Gap is formed between sealing bottom 110, is formed between the sealed connection joint face 122 of layer 120 and contact surface 124 in this way
During pressure differential, it is to be sealed can at least to ensure that the part for being tightly connected the close periphery of layer 120 can fit tightly on completely
Position ensures the stability of sealing performance.
As shown in Figure 1, when the periphery of layer 120 in sealing contact is flushed with sealing the periphery of bottom 110, it is preferred that bonding
Layer 130 is located at the middle part of layer 120 in sealing contact.Further, in a specific embodiment, the width of adhesive linkage 130 with it is close
The ratio of the width of back cover layer 110 is 1:10~1:1.
In addition, in one embodiment, joint face 122 is located at the periphery of layer 120 in sealing contact and the periphery of adhesive linkage 130
Between region, and/or seal bottom 110 the surface towards joint face 122 sealing bottom 110 periphery and adhesive linkage
Region between 130 periphery is equipped with anti-stick coating.By setting anti-stick coating, can prevent from, when used for a long time, sealing bottom
Layer 110 is bonded together with layer 120 in sealing contact, and sealing performance is caused to decline.
Present embodiment additionally provides a kind of pressure difference encapsulating method, is by the way that the pressure difference of any of the above-described embodiment is sealed
Structure 100 is fitted in the position to be sealed of structure for needing to seal with its contact surface 124, and gap is sealed completely, is sealing
The both sides of contact layer 120 form pressure differential, and the pressure of 122 side of joint face is more than the pressure of 124 side of contact surface.
The larger sealing bottom 110 of rigidity is required to cover the gap at position to be sealed completely, to be formed in sealing paste
After conjunction, effective support is formed, layer 120 in sealing contact is prevented to be inhaled into gap.
Structure position or opposing stationary structure position of the above-mentioned position to be sealed for relative motion, with corresponding dynamic close respectively
Seal use occasion and static seal use occasion.
Above-mentioned pressure difference sealing structure 100 and using the pressure difference sealing structure 100 pressure difference encapsulating method can either be used for it is quiet
Sealing, and can be used in dynamic sealing, it is especially suitable for the sealing that both sides have pressure differential, as used in the vacuum structure with negative pressure
On, wherein layer in sealing contact 120 can be directly attached to position to be sealed, since layer 120 in sealing contact is elastomer, sealing
In the presence of there are pressure differential in 120 both sides of contact layer, position to be sealed can be fitted tightly on, and seals the firm of bottom 110
It spends larger, layer 120 in sealing contact can be given to provide a good pressure and its strength support guarantee, prevent layer 120 in sealing contact
It is inhaled under the action of pressure at both sides difference in the gap at position to be sealed.
The pressure difference encapsulating method sealing effect of above-mentioned pressure difference sealing structure 100 and use the pressure difference sealing structure 100 is good, makes
With flexible and convenient, it is particularly suitable for having sealing problem in the presence of pressure difference, and pressure difference is bigger, effect is better, and when there is pressure difference, has
Effect solves the problems, such as that layer 120 in sealing contact is easily inhaled sealing seam.
It is below two specific sealing embodiments, wherein, embodiment 1 corresponds to dynamic sealing, and embodiment 2 is static seal.
Embodiment 1
It needs the structure sealed as shown in figure 4, including mobile face 4 and stationary face 6, has between mobile face 4 and stationary face 6
There is sealing seam 5.It wherein moves face 4 to be moveable, and lower surface is relatively rough in the left area close to sealing seam 5, it is separate
The right area smoother of sealing seam 5, sealing seam 5 are the gaps between mobile face 4 and stationary face 6, and stationary face 6 is to fix not
Dynamic, whole surface smoother.
Mobile face 4 can moving forward and backward forward or backward in the horizontal direction, 6 surface of stationary face is smooth, seals bottom 110
There is certain elasticity with layer 120 in sealing contact, layer 120 in sealing contact can be because of the frictional force that rough surface generates on mobile face 4, institute
To be moved with mobile face 4.
120 thickness ratio of layer in sealing contact is relatively thin and has certain elasticity, can tightly be affixed on stationary face 6 and mobile face 4, close
Back cover layer 110 has certain elasticity, and thickness is thicker, and a fine pressure and its intensity guarantee are provided to layer 120 in sealing contact.
When having negative pressure above stationary face 6, mobile face 4, sealing bottom 110 can effectively be pressed in layer 120 in sealing contact
On, layer 120 in sealing contact is prevented to be embedded into sealing seam 5, while layer in sealing contact 120 is than relatively thin, and with certain softness
Property, it is tightly bonded in stationary face 6, mobile face 4 under suction function, is more advantageous to sealing, prevent gas, liquid from being stitched from sealing
5 pass through.And sealing 110 thickness of bottom is thicker effectively prevents layer 120 in sealing contact and inhale sealant under the action of negative pressure
Enter in sealing seam 5.
Embodiment 2
As shown in figure 5, embodiment 2 seals treating for 7 lower section of water container using pressure difference sealing structure 100 as indicated with 1
Sealing hole 8 is equipped with water 9 in water container 4.
Pressure difference sealing structure 100 is placed at sealing hole 8, water 9 is added in container 7, due to the pressure that water 9 generates, energy
Pressure difference sealing structure 100 is made tightly to be bonded with 7 bottom of container, plays the role of sealing, bottom 110 is in addition sealed and plays support work
With preventing layer 120 in sealing contact from being pressed to wear sealing hole 8.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of pressure difference sealing structure, which is characterized in that including sealing bottom, layer in sealing contact and adhesive linkage；The sealing
The two sides of contact layer are respectively joint face and the contact surface for being bonded with position to be sealed, the joint face with it is described close
It is connected between one side surface of back cover layer by the adhesive linkage；The periphery of the adhesive linkage is located at the week of the layer in sealing contact
Within edge, so that part of the joint face between the periphery of the layer in sealing contact and the periphery of the adhesive linkage is exposed
Gap is formed in the sealing bottom and/or between the sealing bottom；The layer in sealing contact be elastomer, the sealing
The rigidity of contact layer is small compared with the rigidity of the sealing bottom.
2. pressure difference sealing structure as described in claim 1, which is characterized in that the periphery of the adhesive linkage also is located at the sealing
Within the periphery of bottom, so as at least be formed with gap between part layer in sealing contact and the sealing bottom.
3. pressure difference sealing structure as claimed in claim 2, which is characterized in that the periphery of the layer in sealing contact and the sealing
The periphery of bottom flushes；The adhesive linkage is located at the middle part of the layer in sealing contact.
4. pressure difference sealing structure as described in claim 1, which is characterized in that the width of the width of the adhesive linkage and sealing bottom
The ratio of degree is 1:10~1:1.
5. such as pressure difference sealing structure according to any one of claims 1 to 4, which is characterized in that the bullet of the layer in sealing contact
Property modulus in the range of 1.0~100Pa, the elasticity modulus of the sealing bottom is in the range of 10~10000Pa, and the sealing
The elasticity modulus of contact layer is no more than the elasticity modulus of the sealing bottom.
6. such as pressure difference sealing structure according to any one of claims 1 to 4, which is characterized in that the sealing bottom is plastics
Layer, metal layer, rubber layer or layer of silica gel；
The layer in sealing contact is rubber layer；
The adhesive linkage is epoxy resin layer, rubber layer or layer of silica gel.
7. pressure difference sealing structure as claimed in claim 6, which is characterized in that the thickness of the sealing bottom is more than the sealing
The thickness of contact layer.
8. pressure difference sealing structure as claimed in claim 6, which is characterized in that the thickness of the layer in sealing contact is in 0.5~5mm
In the range of, it is described sealing bottom thickness in the range of 2~10mm, and when the layer in sealing contact with it is described seal bottom be
During rubber layer, the thickness of the layer in sealing contact is more than the thickness of the sealing bottom.
9. such as pressure difference sealing structure according to any one of claims 1 to 4, which is characterized in that the joint face is located at described
The direction connection in region, and/or the sealing bottom between the periphery of the periphery of layer in sealing contact and the adhesive linkage
Region of the surface in face between the periphery of the sealing bottom and the periphery of the adhesive linkage is equipped with anti-stick coating.
10. such as pressure difference sealing structure according to any one of claims 1 to 4, which is characterized in that the sealing bottom and described
Layer in sealing contact is laminated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489268.1U CN207527039U (en) | 2017-11-09 | 2017-11-09 | pressure difference sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489268.1U CN207527039U (en) | 2017-11-09 | 2017-11-09 | pressure difference sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207527039U true CN207527039U (en) | 2018-06-22 |
Family
ID=62581628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721489268.1U Withdrawn - After Issue CN207527039U (en) | 2017-11-09 | 2017-11-09 | pressure difference sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207527039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725780A (en) * | 2017-11-09 | 2018-02-23 | 昆明纳太科技有限公司 | Pressure difference sealing structure and pressure difference encapsulating method |
-
2017
- 2017-11-09 CN CN201721489268.1U patent/CN207527039U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725780A (en) * | 2017-11-09 | 2018-02-23 | 昆明纳太科技有限公司 | Pressure difference sealing structure and pressure difference encapsulating method |
| CN107725780B (en) * | 2017-11-09 | 2024-04-16 | 昆明纳太科技有限公司 | Differential pressure sealing structure and differential pressure sealing method |
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