CN114060527A - Inflatable structure for rectangular catalyst carrier and splicing method - Google Patents
Inflatable structure for rectangular catalyst carrier and splicing method Download PDFInfo
- Publication number
- CN114060527A CN114060527A CN202111306524.XA CN202111306524A CN114060527A CN 114060527 A CN114060527 A CN 114060527A CN 202111306524 A CN202111306524 A CN 202111306524A CN 114060527 A CN114060527 A CN 114060527A
- Authority
- CN
- China
- Prior art keywords
- inflatable
- catalyst carrier
- rectangular
- sealing ring
- angle
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 105
- 230000007704 transition Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000000969 carrier Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 239000006255 coating slurry Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses an inflatable structure for a rectangular catalyst carrier and a splicing method, which comprises the steps of customizing two inflatable sealing strips in a mould form, namely a right-angle L-shaped sealing strip and a long-strip-shaped linear sealing strip respectively, determining the splicing method of the two inflatable sealing strips according to the size of the required carrier, connecting the heads and the tails of the sealing strips after splicing to form a hollow inflatable sealing ring, and installing an air nozzle at the position without a spliced seam. The invention can be used for catalyst carriers with rectangular sections, including rectangular catalyst carriers with the same or different length-width ratios such as squares and rectangles, and reduces the manufacturing cost of the inflatable structure for the rectangular catalyst carriers. Due to the existence of the positioning groove, when the inflatable structure of the rectangular catalyst carrier is matched with the clamp containing the positioning ring, the set shape of the inflatable sealing ring can be completely kept, and the required clamping or sealing function of the catalyst carrier is completed.
Description
Technical Field
The invention relates to the technical field of sealing equipment, in particular to an inflatable structure for a rectangular catalyst carrier and a splicing method.
Background
The section of the inflatable sealing ring is closed and hollow in a figure shape, a special elastic sealing structure in a hollow state is integrally formed, and one or more air nozzles are externally connected to a certain position of the inflatable sealing ring and used for inflating or deflating the inflatable sealing ring. The inflated sealing ring has expanded elastic body and increased size to fill the gap between the sealing ring and the sealed structure. The inflatable sealing ring is made of high-elasticity rubber, the inflation pressure and the sealed rigid structure reach pressure balance, the expansion size of each position of the sealing ring can be matched with the sealed structure, and the sealing of irregular gaps between the inflatable sealing ring and the sealed structure can be finally realized.
The material of the catalyst carrier body is fragile, and a rigid clamp cannot be used, but the overall dimension precision of the carrier has irregular deviation, and the conventional inflatable sealing ring generally has only a sealing function and cannot be matched with the clamp for use.
Currently, there is a method for manufacturing an inflatable sealing ring by vulcanization molding, for example, a method for manufacturing an inflatable sealing ring disclosed in patent application No. 201911290291.1, in which a tubular precured adhesive tape is cut into a standard length and a cut by an automatic cutting machine, and then spliced by an automatic splicing machine to obtain a preformed inflatable sealing ring blank, an air nozzle is mounted at a corresponding position of the preformed inflatable sealing ring blank to obtain a preformed assembly of the inflatable sealing ring, and finally the preformed assembly of the inflatable sealing ring is mounted in a vulcanizing box to be vulcanized to obtain a finished product. The method realizes the production of the inflation sealing ring with infinite length, ensures the uniform wall thickness of each part of the inflation sealing ring and uniform vulcanization degree, accelerates the butt joint efficiency of the sealing ring, avoids the problems of low finished product rate and poor quality of products caused by butt joint errors caused by manual butt joint, not only improves the production efficiency of the inflation sealing ring, but also improves the quality and the finished product rate of the products, but the manufactured inflation sealing ring has a fixed shape and is single and can not be assembled and spliced according to the use requirements.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an inflatable structure for a rectangular catalyst carrier and a splicing method for the inflatable structure for the rectangular catalyst carrier, which reduce the manufacturing cost of the inflatable structure for the rectangular catalyst carrier and solve the problems that the set shape of an inflatable sealing ring is easy to change when a clamp clamps a sealing ring of an irregular catalyst carrier and the sealing performance of the clamped catalyst carrier is difficult to maintain.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an aerated structure for a rectangular catalyst support: including the inflatable seal circle body with be used for filling the air cock of gassing, the inflatable seal circle body includes right angle L type sealing strip and rectangular style of calligraphy sealing strip, every inflatable seal circle body contains four right angle L types inflatable seal strip, aerifys through rectangular style of calligraphy inflatable seal strip between the sealing strip and connects between the adjacent right angle L type inflatable seal strip, and the inside cavity that is equipped with of inflatable seal circle body aerifys the chamber, and the air cock switches on in cavity and aerifys the chamber.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the axial cross-section outside of inflatable seal body is equipped with T shape structure, and T shape structure is equipped with the constant head tank, and the constant head tank is located the both sides of T shape structure for connect outside anchor clamps.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: when the positioning groove is connected with the external clamp, the air tap is arranged at the position where the deformation of the sealing ring is minimum.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the number of the air nozzles is one to four.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the inner diameter of the inflatable sealing ring body is 40 mm-350 mm, and the height of the inflatable sealing ring body is 10 mm-50 mm.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the diameter of the air nozzle is 4 mm-10 mm.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the inflation pressure range of the hollow inflation cavity is 0.05 MPa-0.4 MPa.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: the radial section of the inflatable sealing ring body is a rectangle which is matched with the shape of the catalyst carrier.
Preferably, the aforementioned aerated structure for a rectangular catalyst carrier: and at each right angle of the inflatable sealing ring body, a transition radian corresponding to the right angle of the catalyst carrier exists so as to achieve the sealing effect.
A splicing method for a rectangular catalyst carrier inflatable structure comprises the following steps:
selecting corresponding right-angle L-shaped sealing strips and long linear sealing strips according to the prefabricated inflatable structure, and measuring the unilateral fixed length S1 of the right-angle L-shaped sealing strips;
when L1< S1+ S1, cutting the single-side length of the right-angle L-shaped sealing strip to the length of L1/2, and directly connecting the two right-angle L-shaped sealing strips in an opposite mode;
when L2 is greater than S1+ S1, after a long linear sealing strip with the length of (L2-S1-S1) is cut, splicing the cut long linear sealing strips between two adjacent right-angle L-shaped sealing strips to form a hollow inflatable structure;
and installing an air nozzle at the position without the abutted seam.
The invention achieves the following beneficial effects: the invention can be used for catalyst carriers with rectangular sections, including rectangular catalyst carriers with the same or different length-width ratios such as squares and rectangles, and reduces the manufacturing cost of the inflatable structure for the rectangular catalyst carriers. Due to the existence of the positioning groove, when the inflatable structure of the rectangular catalyst carrier is matched with the clamp containing the positioning ring for use, the set shape of the inflatable sealing ring can be completely kept, the required clamping or sealing function of the catalyst carrier is completed, in the process of the catalyst carrier coating process, the inflatable sealing ring can play a role in sealing a gap between the outer edge of the catalyst carrier and the clamp, the coating slurry is prevented from flowing or adhering to the outer edge of the catalyst carrier, and the product quality of the coating process is improved.
Drawings
FIG. 1 is an axial cross-sectional view of the present invention;
FIG. 2 is a radial cross-sectional view of a preferred embodiment of the present invention;
FIG. 3 is a top plan view of an assembled preferred embodiment of the present invention;
FIG. 4 is an enlarged partial view of the right angle L-shaped inflatable weather strip of the present invention;
FIG. 5 is an enlarged partial view of the elongated in-line inflatable sealing strip of the present invention;
the meaning of the reference numerals: 1. an inflatable seal ring body; 2. an air tap; 3. a hollow inflation cavity; 4. positioning a groove; 5. a T-shaped structure; 6. a right-angled L-shaped sealing strip; 7. a long-strip linear sealing strip.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-5, the present embodiment discloses an inflation structure for a rectangular catalyst carrier, which includes an inflation sealing ring body 1 and an air faucet 2 for inflation and deflation, wherein a hollow inflation cavity 3 is disposed inside the inflation sealing ring body 1, the air faucet 2 is connected to the hollow inflation cavity 3, a T-shaped structure 5 is disposed on an outer side of an axial cross section of the inflation sealing ring body 1, the T-shaped structure 5 is provided with a positioning groove 4, and the positioning groove 4 is used for connecting an external clamp.
The penetration position of the air nozzle 2 is determined according to the shape and the characteristics of the clamped catalyst carrier, and the position with smaller deformation of the sealing ring after inflation is taken as the optimal penetration point. The minimum deformation refers to the deformation of the inflatable seal ring body 1 along the radial line (line a in fig. 1) of the inflatable seal ring after the hollow inflatable cavity 3 is filled with air, and the air tap 2 is arranged at the position with the minimum deformation to avoid the problem of stress concentration at the position after inflation.
The quantity of air cock is relevant with the size weight and the gassing speed of filling of catalyst carrier, and carrier size weight is big more, or fill gassing speed requirement faster, then the quantity of the air cock of installation can be more, and the sealing washer is got and is better with sealed homogeneity moreover, and is preferred, and the quantity of air cock 2 is one to four.
In order to be matched with a clamp for use, the positioning grooves 4 are arranged on two sides of the T-shaped structure 5, so that the set shape of the inflatable sealing ring body 1 can be completely kept when the inflatable sealing ring is clamped, and the inflatable sealing ring is prevented from deforming due to clamping.
Preferably, for the size of cooperation rectangle catalyst carrier, the internal diameter D length scope of inflatable seal ring body 1 is 40mm ~350mm, and the height H of inflatable seal ring body 1 is 10mm ~50 mm.
Preferably, the diameter of the air nozzle 2 is 4 mm-10 mm.
In order to make the air pressure inside the hollow inflation cavity 3 uniform, the inflation pressure range is set to be 0.05 MPa-0.4 MPa.
In order to be used for catalyst carriers with rectangular sections, the catalyst carriers comprise catalyst carriers with the same or different length-width ratios such as squares and rectangles, and the radial sections of the inflatable sealing ring bodies 1 are made into rectangles with the shapes matched with those of the catalyst carriers.
In order to correspond to the right angle of the catalyst carrier for achieving the sealing effect, different transition radians exist at each right angle of the gas-filled sealing ring body 1, as shown in fig. 4, and R1, R2, R3 and R4 are different arc radiuses and are adaptive transition radians.
The present embodiment also includes a method for splicing an air-filled structure of a rectangular catalyst carrier:
the two inflatable sealing strips with fixed shapes are customized in a mold form, the cross sections of the two inflatable sealing strips are respectively in a right-angle L shape and a long-strip straight shape, the single-side fixed length of the right-angle L-shaped sealing strip is S1, the long-strip straight shape is a long strip shape, the length is not limited, the production and the manufacture are convenient, and L1 and L2 are respectively the length of the short side and the length of the long side of a rectangle;
according to the size of the required carrier, the splicing method of the two inflatable sealing strips is determined:
when L1< S1+ S1, the two right-angle L shapes are directly butted after the single-side length of the right-angle L-shaped sealing strip is cut to be 0.5 time of the length of L1;
when L2 is greater than S1+ S1, the right-angle L shape does not need to be cut, and after a long linear shape with the length of L2-S1-S1 is cut, the cut long linear shape is spliced between the two right-angle L shapes;
after the splicing is finished, the sealing strips are connected end to form a hollow inflatable structure;
and installing an air nozzle at the position without the abutted seam.
Fig. 2 shows a preferred embodiment of the present invention. In the preferred embodiment, the catalyst carrier is rectangular, the shape of the inflatable sealing ring body 1 in the present invention is rectangular corresponding to the shape of the catalyst carrier, the air nozzle 2 is communicated with the inflatable sealing ring body 1, the dot-dash line a1 is a short radial line of the drop-shaped inflatable sealing ring penetrating through the air nozzle, and the dot-dash line a2 is a long radial line of the drop-shaped inflatable sealing ring far away from the air nozzle and perpendicular to the direction of the air nozzle. The outer side of the cross section of the inflatable sealing ring comprises a T-shaped structure 5, positioning grooves 4 are vertically arranged on the T-shaped structure 5, the T-shaped structure can be matched with a clamp containing the positioning rings for use, when the clamp is used, the set shape of the inflatable sealing ring can be completely kept, and the required clamping or sealing function of the catalyst carrier is completed.
Fig. 3 shows a preferred embodiment of the invention with respect to a method for manufacturing an air-filled structure for a rectangular catalyst carrier. In the preferred embodiment, the catalyst carrier is rectangular, the cross section of the air-filled seal strip is right-angled L-shaped, the cross section of the air-filled seal strip is long straight-line-shaped, L2> S1+ S1, after the long straight-line-shaped with the length of L2-S1-S1 is cut, the long straight-line-shaped seal strip 7 which is cut is spliced between the two right-angled L-shaped seal strips 6 to form the air-filled structure, as shown in FIG. 4, different transition radians exist at each right angle of the air-filled seal strip, namely the right-angled L-shaped air-filled seal strip, the arc radiuses are respectively R1, R2, R3 and R4, and the arc radians of the transition are respectively adapted to the right angle of the catalyst carrier.
The invention can be used for catalyst carriers with rectangular sections, including rectangular catalyst carriers with the same or different length-width ratios such as squares and rectangles, and reduces the manufacturing cost of the inflatable structure for the rectangular catalyst carriers. Due to the existence of the positioning groove, when the inflatable structure of the rectangular catalyst carrier is matched with the clamp containing the positioning ring, the set shape of the inflatable sealing ring can be completely kept, and the required clamping or sealing function of the catalyst carrier is completed. In the process of the catalyst carrier coating process, the inflatable sealing ring can seal a gap between the outer edge of the catalyst carrier and the clamp, so that coating slurry is prevented from flowing or adhering to the outer edge of the catalyst carrier, and the product quality of the coating process is improved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An inflatable structure for a rectangular catalyst carrier, characterized in that: including inflatable seal circle body (1) and air cock (2) that are used for inflating the gassing, inflatable seal circle body (1) includes right angle L type sealing strip (6) and rectangular a style of calligraphy sealing strip (7), and every inflatable seal circle body (1) contains four right angle L type sealing strips (6), connects through rectangular a style of calligraphy sealing strip (7) between adjacent right angle L type sealing strip (6), the inside cavity inflation chamber (3) that is equipped with of inflatable seal circle body (1), air cock (2) switch on in cavity inflation chamber (3).
2. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the axial cross-section outside of inflatable seal circle body (1) is equipped with T shape structure (5), and T shape structure (5) are equipped with constant head tank (4), constant head tank (4) are located the both sides of T shape structure (5) for connect outside anchor clamps.
3. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: when the positioning groove (4) is connected with an external clamp, the air tap (2) is arranged at the position where the deformation of the sealing ring is minimum.
4. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the number of the air nozzles (2) is one to four.
5. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the inner diameter of the inflatable sealing ring body (1) is 40 mm-350 mm, and the height of the inflatable sealing ring body (1) is 10 mm-50 mm.
6. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the diameter of the air tap (2) is 4 mm-10 mm.
7. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the inflation pressure range of the hollow inflation cavity (3) is 0.05 MPa-0.4 MPa.
8. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: the radial section of the inflatable sealing ring body (1) is a rectangle which is adaptive to the shape of the catalyst carrier.
9. The gas filled structure for a rectangular catalyst carrier according to claim 1, wherein: and transition radians corresponding to the right angles of the catalyst carrier exist at each right angle of the inflatable sealing ring body (1) so as to achieve the sealing effect.
10. A splicing method for a rectangular catalyst carrier inflatable structure is characterized by comprising the following steps:
selecting a corresponding right-angle L-shaped sealing strip (6) and a long linear sealing strip (7) according to the prefabricated inflatable structure, and measuring the unilateral fixed length S1 of the right-angle L-shaped sealing strip (6);
when L1 is less than S1+ S1, the two right-angle L-shaped sealing strips (6) are directly and oppositely connected after the single-side length of the right-angle L-shaped sealing strip (6) is cut to be 0.5 time of the length of L1;
when L2 is greater than S1+ S1, after a long-strip straight-line-shaped sealing strip (7) with the length of (L2-S1-S1) is cut, the cut long-strip straight-line-shaped sealing strip (7) is spliced between two adjacent right-angle L-shaped sealing strips (6) to form a hollow inflatable structure;
and an air nozzle (2) is arranged at the position without the abutted seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306524.XA CN114060527A (en) | 2021-11-05 | 2021-11-05 | Inflatable structure for rectangular catalyst carrier and splicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306524.XA CN114060527A (en) | 2021-11-05 | 2021-11-05 | Inflatable structure for rectangular catalyst carrier and splicing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114060527A true CN114060527A (en) | 2022-02-18 |
Family
ID=80274058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111306524.XA Pending CN114060527A (en) | 2021-11-05 | 2021-11-05 | Inflatable structure for rectangular catalyst carrier and splicing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114060527A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1460169A (en) * | 1974-03-13 | 1976-12-31 | Schlegel Uk Ltd | Moulded corners or joints of door seals and the like |
| JPH08127072A (en) * | 1991-10-30 | 1996-05-21 | Shin Etsu Polymer Co Ltd | Connection of building gasket |
| CN203684416U (en) * | 2013-11-11 | 2014-07-02 | 北新建材集团有限公司 | L-shaped sealing strip, corner sealing, inserting and combined sealing structures of sealing strip |
| CN106736756A (en) * | 2017-01-13 | 2017-05-31 | 山东大学 | It is a kind of to wait rigidity bearing servicing unit and method for the chamber processing of annular thin wall depth |
| CN111438879A (en) * | 2020-04-02 | 2020-07-24 | 上海丰邑新型建材有限公司 | Corner butt joint process method for door and window sealing strip |
| CN112221878A (en) * | 2020-09-14 | 2021-01-15 | 无锡威孚环保催化剂有限公司 | Coating die tool for catalyst production and catalyst production method |
| CN113028069A (en) * | 2021-03-16 | 2021-06-25 | 天津航天机电设备研究所 | Inflating nozzle structure for inflating sealing ring and assembling process |
| CN213839526U (en) * | 2020-11-25 | 2021-07-30 | 广东瑞福密封科技有限公司 | Special-shaped sealing ring for automobile |
| CN214303597U (en) * | 2020-12-21 | 2021-09-28 | 上海地空防护设备有限公司 | Inflatable sealing structure for civil air defense plugging plate |
-
2021
- 2021-11-05 CN CN202111306524.XA patent/CN114060527A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1460169A (en) * | 1974-03-13 | 1976-12-31 | Schlegel Uk Ltd | Moulded corners or joints of door seals and the like |
| JPH08127072A (en) * | 1991-10-30 | 1996-05-21 | Shin Etsu Polymer Co Ltd | Connection of building gasket |
| CN203684416U (en) * | 2013-11-11 | 2014-07-02 | 北新建材集团有限公司 | L-shaped sealing strip, corner sealing, inserting and combined sealing structures of sealing strip |
| CN106736756A (en) * | 2017-01-13 | 2017-05-31 | 山东大学 | It is a kind of to wait rigidity bearing servicing unit and method for the chamber processing of annular thin wall depth |
| CN111438879A (en) * | 2020-04-02 | 2020-07-24 | 上海丰邑新型建材有限公司 | Corner butt joint process method for door and window sealing strip |
| CN112221878A (en) * | 2020-09-14 | 2021-01-15 | 无锡威孚环保催化剂有限公司 | Coating die tool for catalyst production and catalyst production method |
| CN213839526U (en) * | 2020-11-25 | 2021-07-30 | 广东瑞福密封科技有限公司 | Special-shaped sealing ring for automobile |
| CN214303597U (en) * | 2020-12-21 | 2021-09-28 | 上海地空防护设备有限公司 | Inflatable sealing structure for civil air defense plugging plate |
| CN113028069A (en) * | 2021-03-16 | 2021-06-25 | 天津航天机电设备研究所 | Inflating nozzle structure for inflating sealing ring and assembling process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104995034A (en) | Tire, tire manufacturing device, and tire manufacturing method | |
| CN114060527A (en) | Inflatable structure for rectangular catalyst carrier and splicing method | |
| CN113276439B (en) | Composite material winding pipe, inflatable core mould and processing method of composite material winding pipe | |
| US5324375A (en) | Method of preparing a shoulder bladder of a molder for a tire | |
| CN106439013B (en) | A kind of ring pipe sealing ring and its processing method for ultralow temperature dynamic sealing | |
| CN211518219U (en) | Rubber sleeve with teeth and vulcanizing device | |
| CN112117067A (en) | Integrated hollow composite insulator with mounting flange insulation structure and manufacturing method | |
| CN109016286B (en) | Forming and vulcanizing method of transmission belt | |
| CN105189142A (en) | Tire | |
| CN216200527U (en) | Take gas filled structure of constant head tank | |
| CN109551742A (en) | A kind of connection structure of die cavity mode locking ring and die cavity | |
| CN110748713A (en) | PVC plastics drain pipe of high strength | |
| CN203035965U (en) | Opening air bag for stern shaft pressurized sealing device | |
| CN102381518B (en) | Air seal and manufacturing method thereof | |
| CN218012610U (en) | Forming roller and sealing structure thereof | |
| CN221562040U (en) | Exhaust mechanism for foaming mold of automobile acoustic part | |
| CN220570433U (en) | Machining device for motor stator assembly | |
| CN221237168U (en) | High-sealing hollow sealing ring | |
| JPH05254036A (en) | Injection molding method for tire tread | |
| CN216579165U (en) | Blow molding mold for pivot connecting piece of dust cover | |
| CN220792034U (en) | Waterproof dustproof sealing washer of liquid silica gel | |
| CN220841417U (en) | Air bag device for bicycle rim | |
| CN215370979U (en) | Inflatable sealing element | |
| JPS61253201A (en) | Bicycle tube | |
| CN113829642B (en) | Hollow surface fabric sealing piece and forming die and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |